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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
1da177e4 LT |
41 | #include <linux/errno.h> |
42 | #include <linux/string.h> | |
43 | #include <linux/in.h> | |
44 | #include <linux/pagemap.h> | |
45 | #include <linux/proc_fs.h> | |
46 | #include <linux/kdev_t.h> | |
47 | #include <linux/sunrpc/clnt.h> | |
2449ea2e | 48 | #include <linux/sunrpc/msg_prot.h> |
1da177e4 LT |
49 | #include <linux/nfs.h> |
50 | #include <linux/nfs4.h> | |
51 | #include <linux/nfs_fs.h> | |
52 | #include <linux/nfs_idmap.h> | |
4ce79717 | 53 | #include "nfs4_fs.h" |
4882ef72 | 54 | #include "internal.h" |
b1f69b75 | 55 | #include "pnfs.h" |
1da177e4 LT |
56 | |
57 | #define NFSDBG_FACILITY NFSDBG_XDR | |
58 | ||
59 | /* Mapping from NFS error code to "errno" error code. */ | |
60 | #define errno_NFSERR_IO EIO | |
61 | ||
0a8ea437 | 62 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
63 | |
64 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
65 | #ifdef DEBUG | |
66 | #define NFS4_MAXTAGLEN 20 | |
67 | #else | |
68 | #define NFS4_MAXTAGLEN 0 | |
69 | #endif | |
70 | ||
6c0195a4 | 71 | /* lock,open owner id: |
9f958ab8 | 72 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 73 | */ |
d035c36c TM |
74 | #define open_owner_id_maxsz (1 + 1 + 4) |
75 | #define lock_owner_id_maxsz (1 + 1 + 4) | |
9104a55d | 76 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
77 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
78 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
79 | #define op_encode_hdr_maxsz (1) | |
80 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
81 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
82 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
83 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
84 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
85 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
86 | (NFS4_FHSIZE >> 2)) | |
87 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
88 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
89 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
90 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
91 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
92 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
93 | #define nfs4_fattr_bitmap_maxsz 3 |
94 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
95 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
96 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
97 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
98 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
99 | /* This is based on getfattr, which uses the most attributes: */ |
100 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 101 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
102 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
103 | nfs4_fattr_value_maxsz) | |
104 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
105 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
106 | 1 + 2 + 1 + \ | |
107 | nfs4_owner_maxsz + \ | |
108 | nfs4_group_maxsz + \ | |
109 | 4 + 4) | |
1da177e4 LT |
110 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
111 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
112 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
113 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 114 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
115 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
116 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
117 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
118 | #define encode_setclientid_maxsz \ | |
119 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
120 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
121 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
122 | 1 /* sc_prog */ + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
124 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
125 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
126 | #define decode_setclientid_maxsz \ |
127 | (op_decode_hdr_maxsz + \ | |
128 | 2 + \ | |
129 | 1024) /* large value for CLID_INUSE */ | |
130 | #define encode_setclientid_confirm_maxsz \ | |
131 | (op_encode_hdr_maxsz + \ | |
132 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
133 | #define decode_setclientid_confirm_maxsz \ | |
134 | (op_decode_hdr_maxsz) | |
e6889620 TM |
135 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
136 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
137 | #define encode_share_access_maxsz \ |
138 | (2) | |
4882ef72 | 139 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) |
2cebf828 TM |
140 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
141 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
142 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
143 | 2 + encode_share_access_maxsz + 2 + \ | |
144 | open_owner_id_maxsz + \ | |
145 | encode_opentype_maxsz + \ | |
146 | encode_claim_null_maxsz) | |
147 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 148 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
149 | decode_ace_maxsz) |
150 | #define decode_change_info_maxsz (5) | |
151 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 152 | decode_stateid_maxsz + \ |
2cebf828 TM |
153 | decode_change_info_maxsz + 1 + \ |
154 | nfs4_fattr_bitmap_maxsz + \ | |
155 | decode_delegation_maxsz) | |
9104a55d TM |
156 | #define encode_open_confirm_maxsz \ |
157 | (op_encode_hdr_maxsz + \ | |
158 | encode_stateid_maxsz + 1) | |
159 | #define decode_open_confirm_maxsz \ | |
160 | (op_decode_hdr_maxsz + \ | |
161 | decode_stateid_maxsz) | |
162 | #define encode_open_downgrade_maxsz \ | |
163 | (op_encode_hdr_maxsz + \ | |
164 | encode_stateid_maxsz + 1 + \ | |
165 | encode_share_access_maxsz) | |
166 | #define decode_open_downgrade_maxsz \ | |
167 | (op_decode_hdr_maxsz + \ | |
168 | decode_stateid_maxsz) | |
169 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
170 | 1 + encode_stateid_maxsz) | |
171 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
172 | decode_stateid_maxsz) | |
173 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
174 | encode_stateid_maxsz + \ | |
175 | encode_attrs_maxsz) | |
176 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
177 | nfs4_fattr_bitmap_maxsz) | |
178 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
179 | encode_stateid_maxsz + 3) | |
180 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
181 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
182 | 2 + encode_verifier_maxsz + 5) | |
183 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
184 | decode_verifier_maxsz) | |
185 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
186 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
187 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
188 | encode_stateid_maxsz + 4) | |
189 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
190 | 2 + decode_verifier_maxsz) | |
191 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
192 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
193 | decode_verifier_maxsz) | |
1da177e4 LT |
194 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
195 | nfs4_name_maxsz) | |
6ce18391 BH |
196 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
197 | decode_change_info_maxsz) | |
1da177e4 LT |
198 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
199 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
200 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
201 | decode_change_info_maxsz + \ | |
202 | decode_change_info_maxsz) | |
1da177e4 LT |
203 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
204 | nfs4_name_maxsz) | |
6ce18391 | 205 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
daccbded | 206 | #define encode_lockowner_maxsz (7) |
9104a55d TM |
207 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
208 | 7 + \ | |
daccbded TM |
209 | 1 + encode_stateid_maxsz + 1 + \ |
210 | encode_lockowner_maxsz) | |
9104a55d TM |
211 | #define decode_lock_denied_maxsz \ |
212 | (8 + decode_lockowner_maxsz) | |
213 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
214 | decode_lock_denied_maxsz) | |
daccbded TM |
215 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ |
216 | encode_lockowner_maxsz) | |
9104a55d TM |
217 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ |
218 | decode_lock_denied_maxsz) | |
219 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
220 | encode_stateid_maxsz + \ | |
221 | 4) | |
222 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
223 | decode_stateid_maxsz) | |
d3c7b7cc TM |
224 | #define encode_release_lockowner_maxsz \ |
225 | (op_encode_hdr_maxsz + \ | |
226 | encode_lockowner_maxsz) | |
227 | #define decode_release_lockowner_maxsz \ | |
228 | (op_decode_hdr_maxsz) | |
9104a55d TM |
229 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) |
230 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
231 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
232 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 233 | 1 + \ |
96928206 | 234 | nfs4_fattr_maxsz) |
1da177e4 LT |
235 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
236 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
237 | 1 + 2 + nfs4_name_maxsz + \ |
238 | encode_attrs_maxsz) | |
2cebf828 TM |
239 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
240 | decode_change_info_maxsz + \ | |
241 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
242 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
243 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
244 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
245 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
246 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
247 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
248 | nfs4_fattr_bitmap_maxsz + 1) | |
249 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
250 | encode_stateid_maxsz + 3) | |
251 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
252 | #define encode_fs_locations_maxsz \ |
253 | (encode_getattr_maxsz) | |
254 | #define decode_fs_locations_maxsz \ | |
255 | (0) | |
9b7b9fcc AA |
256 | |
257 | #if defined(CONFIG_NFS_V4_1) | |
fc931582 AA |
258 | #define NFS4_MAX_MACHINE_NAME_LEN (64) |
259 | ||
99fe60d0 BH |
260 | #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ |
261 | encode_verifier_maxsz + \ | |
262 | 1 /* co_ownerid.len */ + \ | |
263 | XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ | |
264 | 1 /* flags */ + \ | |
265 | 1 /* spa_how */ + \ | |
266 | 0 /* SP4_NONE (for now) */ + \ | |
267 | 1 /* zero implemetation id array */) | |
268 | #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ | |
269 | 2 /* eir_clientid */ + \ | |
270 | 1 /* eir_sequenceid */ + \ | |
271 | 1 /* eir_flags */ + \ | |
272 | 1 /* spr_how */ + \ | |
273 | 0 /* SP4_NONE (for now) */ + \ | |
274 | 2 /* eir_server_owner.so_minor_id */ + \ | |
275 | /* eir_server_owner.so_major_id<> */ \ | |
276 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
277 | /* eir_server_scope<> */ \ | |
278 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ | |
279 | 1 /* eir_server_impl_id array length */ + \ | |
280 | 0 /* ignored eir_server_impl_id contents */) | |
fc931582 AA |
281 | #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) |
282 | #define decode_channel_attrs_maxsz (6 + \ | |
283 | 1 /* ca_rdma_ird.len */ + \ | |
284 | 1 /* ca_rdma_ird */) | |
285 | #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ | |
286 | 2 /* csa_clientid */ + \ | |
287 | 1 /* csa_sequence */ + \ | |
288 | 1 /* csa_flags */ + \ | |
289 | encode_channel_attrs_maxsz + \ | |
290 | encode_channel_attrs_maxsz + \ | |
291 | 1 /* csa_cb_program */ + \ | |
292 | 1 /* csa_sec_parms.len (1) */ + \ | |
293 | 1 /* cb_secflavor (AUTH_SYS) */ + \ | |
294 | 1 /* stamp */ + \ | |
295 | 1 /* machinename.len */ + \ | |
296 | XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ | |
297 | 1 /* uid */ + \ | |
298 | 1 /* gid */ + \ | |
299 | 1 /* gids.len (0) */) | |
300 | #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ | |
301 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ | |
302 | 1 /* csr_sequence */ + \ | |
303 | 1 /* csr_flags */ + \ | |
304 | decode_channel_attrs_maxsz + \ | |
305 | decode_channel_attrs_maxsz) | |
0f3e66c6 AA |
306 | #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) |
307 | #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) | |
fc01cea9 AA |
308 | #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ |
309 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) | |
310 | #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ | |
311 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) | |
18019753 RL |
312 | #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) |
313 | #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) | |
b1f69b75 AA |
314 | #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ |
315 | XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) | |
316 | #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ | |
317 | 1 /* layout type */ + \ | |
318 | 1 /* opaque devaddr4 length */ + \ | |
319 | /* devaddr4 payload is read into page */ \ | |
320 | 1 /* notification bitmap length */ + \ | |
321 | 1 /* notification bitmap */) | |
322 | #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ | |
323 | encode_stateid_maxsz) | |
324 | #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ | |
325 | decode_stateid_maxsz + \ | |
326 | XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) | |
863a3c6c AA |
327 | #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ |
328 | 2 /* offset */ + \ | |
329 | 2 /* length */ + \ | |
330 | 1 /* reclaim */ + \ | |
331 | encode_stateid_maxsz + \ | |
332 | 1 /* new offset (true) */ + \ | |
333 | 2 /* last byte written */ + \ | |
334 | 1 /* nt_timechanged (false) */ + \ | |
335 | 1 /* layoutupdate4 layout type */ + \ | |
336 | 1 /* NULL filelayout layoutupdate4 payload */) | |
337 | #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) | |
338 | ||
9b7b9fcc AA |
339 | #else /* CONFIG_NFS_V4_1 */ |
340 | #define encode_sequence_maxsz 0 | |
341 | #define decode_sequence_maxsz 0 | |
342 | #endif /* CONFIG_NFS_V4_1 */ | |
343 | ||
1da177e4 LT |
344 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
345 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
346 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 347 | encode_sequence_maxsz + \ |
1da177e4 | 348 | encode_putfh_maxsz + \ |
9104a55d | 349 | encode_read_maxsz) |
1da177e4 | 350 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 351 | decode_sequence_maxsz + \ |
1da177e4 | 352 | decode_putfh_maxsz + \ |
9104a55d | 353 | decode_read_maxsz) |
1da177e4 | 354 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 355 | encode_sequence_maxsz + \ |
1da177e4 | 356 | encode_putfh_maxsz + \ |
9104a55d | 357 | encode_readlink_maxsz) |
1da177e4 | 358 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 359 | decode_sequence_maxsz + \ |
1da177e4 | 360 | decode_putfh_maxsz + \ |
9104a55d | 361 | decode_readlink_maxsz) |
1da177e4 | 362 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 363 | encode_sequence_maxsz + \ |
1da177e4 | 364 | encode_putfh_maxsz + \ |
9104a55d | 365 | encode_readdir_maxsz) |
1da177e4 | 366 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 367 | decode_sequence_maxsz + \ |
1da177e4 | 368 | decode_putfh_maxsz + \ |
9104a55d | 369 | decode_readdir_maxsz) |
1da177e4 | 370 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 371 | encode_sequence_maxsz + \ |
1da177e4 | 372 | encode_putfh_maxsz + \ |
9104a55d | 373 | encode_write_maxsz + \ |
4f9838c7 | 374 | encode_getattr_maxsz) |
1da177e4 | 375 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 376 | decode_sequence_maxsz + \ |
1da177e4 | 377 | decode_putfh_maxsz + \ |
9104a55d | 378 | decode_write_maxsz + \ |
4f9838c7 | 379 | decode_getattr_maxsz) |
1da177e4 | 380 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 381 | encode_sequence_maxsz + \ |
1da177e4 | 382 | encode_putfh_maxsz + \ |
9104a55d | 383 | encode_commit_maxsz + \ |
4f9838c7 | 384 | encode_getattr_maxsz) |
1da177e4 | 385 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 386 | decode_sequence_maxsz + \ |
1da177e4 | 387 | decode_putfh_maxsz + \ |
9104a55d | 388 | decode_commit_maxsz + \ |
4f9838c7 | 389 | decode_getattr_maxsz) |
1da177e4 | 390 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 391 | encode_sequence_maxsz + \ |
2cebf828 TM |
392 | encode_putfh_maxsz + \ |
393 | encode_savefh_maxsz + \ | |
394 | encode_open_maxsz + \ | |
395 | encode_getfh_maxsz + \ | |
396 | encode_getattr_maxsz + \ | |
397 | encode_restorefh_maxsz + \ | |
398 | encode_getattr_maxsz) | |
1da177e4 | 399 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 400 | decode_sequence_maxsz + \ |
2cebf828 TM |
401 | decode_putfh_maxsz + \ |
402 | decode_savefh_maxsz + \ | |
403 | decode_open_maxsz + \ | |
404 | decode_getfh_maxsz + \ | |
405 | decode_getattr_maxsz + \ | |
406 | decode_restorefh_maxsz + \ | |
407 | decode_getattr_maxsz) | |
9104a55d TM |
408 | #define NFS4_enc_open_confirm_sz \ |
409 | (compound_encode_hdr_maxsz + \ | |
410 | encode_putfh_maxsz + \ | |
411 | encode_open_confirm_maxsz) | |
412 | #define NFS4_dec_open_confirm_sz \ | |
413 | (compound_decode_hdr_maxsz + \ | |
414 | decode_putfh_maxsz + \ | |
415 | decode_open_confirm_maxsz) | |
1da177e4 | 416 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 417 | encode_sequence_maxsz + \ |
1da177e4 | 418 | encode_putfh_maxsz + \ |
2cebf828 TM |
419 | encode_open_maxsz + \ |
420 | encode_getattr_maxsz) | |
1da177e4 | 421 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 422 | decode_sequence_maxsz + \ |
1da177e4 | 423 | decode_putfh_maxsz + \ |
2cebf828 TM |
424 | decode_open_maxsz + \ |
425 | decode_getattr_maxsz) | |
1da177e4 LT |
426 | #define NFS4_enc_open_downgrade_sz \ |
427 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 428 | encode_sequence_maxsz + \ |
9104a55d TM |
429 | encode_putfh_maxsz + \ |
430 | encode_open_downgrade_maxsz + \ | |
431 | encode_getattr_maxsz) | |
1da177e4 LT |
432 | #define NFS4_dec_open_downgrade_sz \ |
433 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 434 | decode_sequence_maxsz + \ |
9104a55d TM |
435 | decode_putfh_maxsz + \ |
436 | decode_open_downgrade_maxsz + \ | |
437 | decode_getattr_maxsz) | |
438 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 439 | encode_sequence_maxsz + \ |
9104a55d TM |
440 | encode_putfh_maxsz + \ |
441 | encode_close_maxsz + \ | |
442 | encode_getattr_maxsz) | |
443 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 444 | decode_sequence_maxsz + \ |
9104a55d TM |
445 | decode_putfh_maxsz + \ |
446 | decode_close_maxsz + \ | |
447 | decode_getattr_maxsz) | |
448 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 449 | encode_sequence_maxsz + \ |
9104a55d TM |
450 | encode_putfh_maxsz + \ |
451 | encode_setattr_maxsz + \ | |
452 | encode_getattr_maxsz) | |
453 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 454 | decode_sequence_maxsz + \ |
9104a55d TM |
455 | decode_putfh_maxsz + \ |
456 | decode_setattr_maxsz + \ | |
457 | decode_getattr_maxsz) | |
1da177e4 | 458 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 459 | encode_sequence_maxsz + \ |
1da177e4 LT |
460 | encode_putfh_maxsz + \ |
461 | encode_fsinfo_maxsz) | |
462 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 463 | decode_sequence_maxsz + \ |
1da177e4 LT |
464 | decode_putfh_maxsz + \ |
465 | decode_fsinfo_maxsz) | |
466 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
467 | encode_renew_maxsz) | |
468 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
469 | decode_renew_maxsz) | |
470 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
471 | encode_setclientid_maxsz) | |
472 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
473 | decode_setclientid_maxsz) | |
474 | #define NFS4_enc_setclientid_confirm_sz \ | |
475 | (compound_encode_hdr_maxsz + \ | |
476 | encode_setclientid_confirm_maxsz + \ | |
477 | encode_putrootfh_maxsz + \ | |
478 | encode_fsinfo_maxsz) | |
479 | #define NFS4_dec_setclientid_confirm_sz \ | |
480 | (compound_decode_hdr_maxsz + \ | |
481 | decode_setclientid_confirm_maxsz + \ | |
482 | decode_putrootfh_maxsz + \ | |
483 | decode_fsinfo_maxsz) | |
484 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 485 | encode_sequence_maxsz + \ |
1da177e4 | 486 | encode_putfh_maxsz + \ |
9104a55d | 487 | encode_lock_maxsz) |
1da177e4 | 488 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 489 | decode_sequence_maxsz + \ |
1da177e4 | 490 | decode_putfh_maxsz + \ |
9104a55d | 491 | decode_lock_maxsz) |
1da177e4 | 492 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 493 | encode_sequence_maxsz + \ |
1da177e4 | 494 | encode_putfh_maxsz + \ |
9104a55d TM |
495 | encode_lockt_maxsz) |
496 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 497 | decode_sequence_maxsz + \ |
9104a55d TM |
498 | decode_putfh_maxsz + \ |
499 | decode_lockt_maxsz) | |
1da177e4 | 500 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 501 | encode_sequence_maxsz + \ |
1da177e4 | 502 | encode_putfh_maxsz + \ |
9104a55d | 503 | encode_locku_maxsz) |
1da177e4 | 504 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 505 | decode_sequence_maxsz + \ |
1da177e4 | 506 | decode_putfh_maxsz + \ |
9104a55d | 507 | decode_locku_maxsz) |
d3c7b7cc TM |
508 | #define NFS4_enc_release_lockowner_sz \ |
509 | (compound_encode_hdr_maxsz + \ | |
510 | encode_lockowner_maxsz) | |
511 | #define NFS4_dec_release_lockowner_sz \ | |
512 | (compound_decode_hdr_maxsz + \ | |
513 | decode_lockowner_maxsz) | |
1da177e4 | 514 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 515 | encode_sequence_maxsz + \ |
1da177e4 | 516 | encode_putfh_maxsz + \ |
76b32999 TM |
517 | encode_access_maxsz + \ |
518 | encode_getattr_maxsz) | |
1da177e4 | 519 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 520 | decode_sequence_maxsz + \ |
1da177e4 | 521 | decode_putfh_maxsz + \ |
76b32999 TM |
522 | decode_access_maxsz + \ |
523 | decode_getattr_maxsz) | |
1da177e4 | 524 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 525 | encode_sequence_maxsz + \ |
1da177e4 LT |
526 | encode_putfh_maxsz + \ |
527 | encode_getattr_maxsz) | |
528 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 529 | decode_sequence_maxsz + \ |
1da177e4 LT |
530 | decode_putfh_maxsz + \ |
531 | decode_getattr_maxsz) | |
532 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 533 | encode_sequence_maxsz + \ |
1da177e4 LT |
534 | encode_putfh_maxsz + \ |
535 | encode_lookup_maxsz + \ | |
536 | encode_getattr_maxsz + \ | |
537 | encode_getfh_maxsz) | |
538 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 539 | decode_sequence_maxsz + \ |
1da177e4 | 540 | decode_putfh_maxsz + \ |
e6889620 | 541 | decode_lookup_maxsz + \ |
1da177e4 LT |
542 | decode_getattr_maxsz + \ |
543 | decode_getfh_maxsz) | |
544 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 545 | encode_sequence_maxsz + \ |
1da177e4 LT |
546 | encode_putrootfh_maxsz + \ |
547 | encode_getattr_maxsz + \ | |
548 | encode_getfh_maxsz) | |
549 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 550 | decode_sequence_maxsz + \ |
1da177e4 LT |
551 | decode_putrootfh_maxsz + \ |
552 | decode_getattr_maxsz + \ | |
553 | decode_getfh_maxsz) | |
554 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 555 | encode_sequence_maxsz + \ |
1da177e4 | 556 | encode_putfh_maxsz + \ |
16e42959 TM |
557 | encode_remove_maxsz + \ |
558 | encode_getattr_maxsz) | |
1da177e4 | 559 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 560 | decode_sequence_maxsz + \ |
1da177e4 | 561 | decode_putfh_maxsz + \ |
6ce18391 | 562 | decode_remove_maxsz + \ |
16e42959 | 563 | decode_getattr_maxsz) |
1da177e4 | 564 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 565 | encode_sequence_maxsz + \ |
1da177e4 LT |
566 | encode_putfh_maxsz + \ |
567 | encode_savefh_maxsz + \ | |
568 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
569 | encode_rename_maxsz + \ |
570 | encode_getattr_maxsz + \ | |
571 | encode_restorefh_maxsz + \ | |
572 | encode_getattr_maxsz) | |
1da177e4 | 573 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 574 | decode_sequence_maxsz + \ |
1da177e4 LT |
575 | decode_putfh_maxsz + \ |
576 | decode_savefh_maxsz + \ | |
577 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
578 | decode_rename_maxsz + \ |
579 | decode_getattr_maxsz + \ | |
580 | decode_restorefh_maxsz + \ | |
581 | decode_getattr_maxsz) | |
1da177e4 | 582 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 583 | encode_sequence_maxsz + \ |
1da177e4 LT |
584 | encode_putfh_maxsz + \ |
585 | encode_savefh_maxsz + \ | |
586 | encode_putfh_maxsz + \ | |
91ba2eee TM |
587 | encode_link_maxsz + \ |
588 | decode_getattr_maxsz + \ | |
589 | encode_restorefh_maxsz + \ | |
590 | decode_getattr_maxsz) | |
1da177e4 | 591 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 592 | decode_sequence_maxsz + \ |
1da177e4 LT |
593 | decode_putfh_maxsz + \ |
594 | decode_savefh_maxsz + \ | |
595 | decode_putfh_maxsz + \ | |
91ba2eee TM |
596 | decode_link_maxsz + \ |
597 | decode_getattr_maxsz + \ | |
598 | decode_restorefh_maxsz + \ | |
599 | decode_getattr_maxsz) | |
1da177e4 | 600 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 601 | encode_sequence_maxsz + \ |
1da177e4 LT |
602 | encode_putfh_maxsz + \ |
603 | encode_symlink_maxsz + \ | |
604 | encode_getattr_maxsz + \ | |
605 | encode_getfh_maxsz) | |
606 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 607 | decode_sequence_maxsz + \ |
1da177e4 LT |
608 | decode_putfh_maxsz + \ |
609 | decode_symlink_maxsz + \ | |
610 | decode_getattr_maxsz + \ | |
611 | decode_getfh_maxsz) | |
612 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 613 | encode_sequence_maxsz + \ |
1da177e4 | 614 | encode_putfh_maxsz + \ |
56ae19f3 | 615 | encode_savefh_maxsz + \ |
1da177e4 | 616 | encode_create_maxsz + \ |
56ae19f3 | 617 | encode_getfh_maxsz + \ |
1da177e4 | 618 | encode_getattr_maxsz + \ |
56ae19f3 TM |
619 | encode_restorefh_maxsz + \ |
620 | encode_getattr_maxsz) | |
1da177e4 | 621 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 622 | decode_sequence_maxsz + \ |
1da177e4 | 623 | decode_putfh_maxsz + \ |
56ae19f3 | 624 | decode_savefh_maxsz + \ |
1da177e4 | 625 | decode_create_maxsz + \ |
56ae19f3 | 626 | decode_getfh_maxsz + \ |
1da177e4 | 627 | decode_getattr_maxsz + \ |
56ae19f3 TM |
628 | decode_restorefh_maxsz + \ |
629 | decode_getattr_maxsz) | |
1da177e4 | 630 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 631 | encode_sequence_maxsz + \ |
1da177e4 LT |
632 | encode_putfh_maxsz + \ |
633 | encode_getattr_maxsz) | |
634 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 635 | decode_sequence_maxsz + \ |
1da177e4 LT |
636 | decode_putfh_maxsz + \ |
637 | decode_getattr_maxsz) | |
638 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 639 | encode_sequence_maxsz + \ |
1da177e4 | 640 | encode_putfh_maxsz + \ |
9104a55d | 641 | encode_statfs_maxsz) |
1da177e4 | 642 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 643 | decode_sequence_maxsz + \ |
1da177e4 | 644 | decode_putfh_maxsz + \ |
9104a55d | 645 | decode_statfs_maxsz) |
1da177e4 | 646 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 647 | encode_sequence_maxsz + \ |
ab91f264 | 648 | encode_putfh_maxsz + \ |
1da177e4 LT |
649 | encode_getattr_maxsz) |
650 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 651 | decode_sequence_maxsz + \ |
ab91f264 | 652 | decode_putfh_maxsz + \ |
1da177e4 LT |
653 | decode_getattr_maxsz) |
654 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 655 | encode_sequence_maxsz + \ |
1da177e4 | 656 | encode_putfh_maxsz + \ |
fa178f29 TM |
657 | encode_delegreturn_maxsz + \ |
658 | encode_getattr_maxsz) | |
1da177e4 | 659 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 660 | decode_sequence_maxsz + \ |
fa178f29 TM |
661 | decode_delegreturn_maxsz + \ |
662 | decode_getattr_maxsz) | |
029d105e | 663 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 664 | encode_sequence_maxsz + \ |
029d105e | 665 | encode_putfh_maxsz + \ |
9104a55d | 666 | encode_getacl_maxsz) |
029d105e | 667 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 668 | decode_sequence_maxsz + \ |
029d105e | 669 | decode_putfh_maxsz + \ |
9104a55d | 670 | decode_getacl_maxsz) |
23ec6965 | 671 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
9b7b9fcc | 672 | encode_sequence_maxsz + \ |
23ec6965 | 673 | encode_putfh_maxsz + \ |
9104a55d | 674 | encode_setacl_maxsz) |
23ec6965 | 675 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
9b7b9fcc | 676 | decode_sequence_maxsz + \ |
23ec6965 | 677 | decode_putfh_maxsz + \ |
9104a55d | 678 | decode_setacl_maxsz) |
683b57b4 TM |
679 | #define NFS4_enc_fs_locations_sz \ |
680 | (compound_encode_hdr_maxsz + \ | |
9b7b9fcc | 681 | encode_sequence_maxsz + \ |
683b57b4 | 682 | encode_putfh_maxsz + \ |
e6889620 TM |
683 | encode_lookup_maxsz + \ |
684 | encode_fs_locations_maxsz) | |
683b57b4 TM |
685 | #define NFS4_dec_fs_locations_sz \ |
686 | (compound_decode_hdr_maxsz + \ | |
9b7b9fcc | 687 | decode_sequence_maxsz + \ |
683b57b4 | 688 | decode_putfh_maxsz + \ |
e6889620 TM |
689 | decode_lookup_maxsz + \ |
690 | decode_fs_locations_maxsz) | |
99fe60d0 BH |
691 | #if defined(CONFIG_NFS_V4_1) |
692 | #define NFS4_enc_exchange_id_sz \ | |
693 | (compound_encode_hdr_maxsz + \ | |
694 | encode_exchange_id_maxsz) | |
695 | #define NFS4_dec_exchange_id_sz \ | |
696 | (compound_decode_hdr_maxsz + \ | |
697 | decode_exchange_id_maxsz) | |
fc931582 AA |
698 | #define NFS4_enc_create_session_sz \ |
699 | (compound_encode_hdr_maxsz + \ | |
700 | encode_create_session_maxsz) | |
701 | #define NFS4_dec_create_session_sz \ | |
702 | (compound_decode_hdr_maxsz + \ | |
703 | decode_create_session_maxsz) | |
0f3e66c6 AA |
704 | #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ |
705 | encode_destroy_session_maxsz) | |
706 | #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ | |
707 | decode_destroy_session_maxsz) | |
fc01cea9 AA |
708 | #define NFS4_enc_sequence_sz \ |
709 | (compound_decode_hdr_maxsz + \ | |
710 | encode_sequence_maxsz) | |
711 | #define NFS4_dec_sequence_sz \ | |
712 | (compound_decode_hdr_maxsz + \ | |
713 | decode_sequence_maxsz) | |
2050f0cc AA |
714 | #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ |
715 | encode_sequence_maxsz + \ | |
716 | encode_putrootfh_maxsz + \ | |
717 | encode_fsinfo_maxsz) | |
718 | #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ | |
719 | decode_sequence_maxsz + \ | |
720 | decode_putrootfh_maxsz + \ | |
721 | decode_fsinfo_maxsz) | |
18019753 RL |
722 | #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ |
723 | encode_sequence_maxsz + \ | |
724 | encode_reclaim_complete_maxsz) | |
725 | #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ | |
726 | decode_sequence_maxsz + \ | |
727 | decode_reclaim_complete_maxsz) | |
b1f69b75 AA |
728 | #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ |
729 | encode_sequence_maxsz +\ | |
730 | encode_getdeviceinfo_maxsz) | |
731 | #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ | |
732 | decode_sequence_maxsz + \ | |
733 | decode_getdeviceinfo_maxsz) | |
734 | #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ | |
735 | encode_sequence_maxsz + \ | |
736 | encode_putfh_maxsz + \ | |
737 | encode_layoutget_maxsz) | |
738 | #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ | |
739 | decode_sequence_maxsz + \ | |
740 | decode_putfh_maxsz + \ | |
741 | decode_layoutget_maxsz) | |
863a3c6c AA |
742 | #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ |
743 | encode_sequence_maxsz +\ | |
744 | encode_putfh_maxsz + \ | |
745 | encode_layoutcommit_maxsz + \ | |
746 | encode_getattr_maxsz) | |
747 | #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ | |
748 | decode_sequence_maxsz + \ | |
749 | decode_putfh_maxsz + \ | |
750 | decode_layoutcommit_maxsz + \ | |
751 | decode_getattr_maxsz) | |
752 | ||
2449ea2e AB |
753 | |
754 | const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
755 | compound_encode_hdr_maxsz + | |
756 | encode_sequence_maxsz + | |
757 | encode_putfh_maxsz + | |
758 | encode_getattr_maxsz) * | |
759 | XDR_UNIT); | |
760 | ||
761 | const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + | |
762 | compound_decode_hdr_maxsz + | |
763 | decode_sequence_maxsz + | |
764 | decode_putfh_maxsz) * | |
765 | XDR_UNIT); | |
99fe60d0 | 766 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 | 767 | |
bca79478 TM |
768 | static const umode_t nfs_type2fmt[] = { |
769 | [NF4BAD] = 0, | |
770 | [NF4REG] = S_IFREG, | |
771 | [NF4DIR] = S_IFDIR, | |
772 | [NF4BLK] = S_IFBLK, | |
773 | [NF4CHR] = S_IFCHR, | |
774 | [NF4LNK] = S_IFLNK, | |
775 | [NF4SOCK] = S_IFSOCK, | |
776 | [NF4FIFO] = S_IFIFO, | |
777 | [NF4ATTRDIR] = 0, | |
778 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
779 | }; |
780 | ||
781 | struct compound_hdr { | |
782 | int32_t status; | |
783 | uint32_t nops; | |
d017931c | 784 | __be32 * nops_p; |
1da177e4 LT |
785 | uint32_t taglen; |
786 | char * tag; | |
0c4e8c18 | 787 | uint32_t replen; /* expected reply words */ |
66cc0429 | 788 | u32 minorversion; |
1da177e4 LT |
789 | }; |
790 | ||
13c65ce9 BH |
791 | static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) |
792 | { | |
793 | __be32 *p = xdr_reserve_space(xdr, nbytes); | |
794 | BUG_ON(!p); | |
795 | return p; | |
796 | } | |
1da177e4 LT |
797 | |
798 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
799 | { | |
8687b63a | 800 | __be32 *p; |
1da177e4 LT |
801 | |
802 | p = xdr_reserve_space(xdr, 4 + len); | |
803 | BUG_ON(p == NULL); | |
804 | xdr_encode_opaque(p, str, len); | |
805 | } | |
806 | ||
0c4e8c18 BH |
807 | static void encode_compound_hdr(struct xdr_stream *xdr, |
808 | struct rpc_rqst *req, | |
809 | struct compound_hdr *hdr) | |
1da177e4 | 810 | { |
8687b63a | 811 | __be32 *p; |
a17c2153 | 812 | struct rpc_auth *auth = req->rq_cred->cr_auth; |
0c4e8c18 BH |
813 | |
814 | /* initialize running count of expected bytes in reply. | |
815 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
816 | * but this is not required as a MUST for the server to do so. */ | |
817 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
818 | |
819 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
820 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
811652bd BH |
821 | p = reserve_space(xdr, 4 + hdr->taglen + 8); |
822 | p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); | |
e75bc1c8 | 823 | *p++ = cpu_to_be32(hdr->minorversion); |
d017931c | 824 | hdr->nops_p = p; |
34558513 | 825 | *p = cpu_to_be32(hdr->nops); |
d017931c AA |
826 | } |
827 | ||
828 | static void encode_nops(struct compound_hdr *hdr) | |
829 | { | |
fc931582 | 830 | BUG_ON(hdr->nops > NFS4_MAX_OPS); |
d017931c | 831 | *hdr->nops_p = htonl(hdr->nops); |
1da177e4 LT |
832 | } |
833 | ||
834 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
835 | { | |
8687b63a | 836 | __be32 *p; |
1da177e4 LT |
837 | |
838 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
839 | BUG_ON(p == NULL); | |
840 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
841 | } | |
842 | ||
cf8cdbe5 | 843 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
844 | { |
845 | char owner_name[IDMAP_NAMESZ]; | |
846 | char owner_group[IDMAP_NAMESZ]; | |
847 | int owner_namelen = 0; | |
848 | int owner_grouplen = 0; | |
8687b63a AV |
849 | __be32 *p; |
850 | __be32 *q; | |
1da177e4 LT |
851 | int len; |
852 | uint32_t bmval0 = 0; | |
853 | uint32_t bmval1 = 0; | |
1da177e4 LT |
854 | |
855 | /* | |
856 | * We reserve enough space to write the entire attribute buffer at once. | |
857 | * In the worst-case, this would be | |
858 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
859 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 860 | * such as owner/group. |
1da177e4 LT |
861 | */ |
862 | len = 16; | |
863 | ||
864 | /* Sigh */ | |
865 | if (iap->ia_valid & ATTR_SIZE) | |
866 | len += 8; | |
867 | if (iap->ia_valid & ATTR_MODE) | |
868 | len += 4; | |
869 | if (iap->ia_valid & ATTR_UID) { | |
e4fd72a1 | 870 | owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); |
1da177e4 | 871 | if (owner_namelen < 0) { |
fe82a183 CL |
872 | dprintk("nfs: couldn't resolve uid %d to string\n", |
873 | iap->ia_uid); | |
1da177e4 LT |
874 | /* XXX */ |
875 | strcpy(owner_name, "nobody"); | |
876 | owner_namelen = sizeof("nobody") - 1; | |
877 | /* goto out; */ | |
878 | } | |
879 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
880 | } | |
881 | if (iap->ia_valid & ATTR_GID) { | |
e4fd72a1 | 882 | owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); |
1da177e4 | 883 | if (owner_grouplen < 0) { |
fe82a183 CL |
884 | dprintk("nfs: couldn't resolve gid %d to string\n", |
885 | iap->ia_gid); | |
1da177e4 LT |
886 | strcpy(owner_group, "nobody"); |
887 | owner_grouplen = sizeof("nobody") - 1; | |
888 | /* goto out; */ | |
889 | } | |
890 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
891 | } | |
892 | if (iap->ia_valid & ATTR_ATIME_SET) | |
893 | len += 16; | |
894 | else if (iap->ia_valid & ATTR_ATIME) | |
895 | len += 4; | |
896 | if (iap->ia_valid & ATTR_MTIME_SET) | |
897 | len += 16; | |
898 | else if (iap->ia_valid & ATTR_MTIME) | |
899 | len += 4; | |
13c65ce9 | 900 | p = reserve_space(xdr, len); |
1da177e4 LT |
901 | |
902 | /* | |
903 | * We write the bitmap length now, but leave the bitmap and the attribute | |
904 | * buffer length to be backfilled at the end of this routine. | |
905 | */ | |
e75bc1c8 | 906 | *p++ = cpu_to_be32(2); |
1da177e4 LT |
907 | q = p; |
908 | p += 3; | |
909 | ||
910 | if (iap->ia_valid & ATTR_SIZE) { | |
911 | bmval0 |= FATTR4_WORD0_SIZE; | |
b95be5a9 | 912 | p = xdr_encode_hyper(p, iap->ia_size); |
1da177e4 LT |
913 | } |
914 | if (iap->ia_valid & ATTR_MODE) { | |
915 | bmval1 |= FATTR4_WORD1_MODE; | |
e75bc1c8 | 916 | *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
917 | } |
918 | if (iap->ia_valid & ATTR_UID) { | |
919 | bmval1 |= FATTR4_WORD1_OWNER; | |
811652bd | 920 | p = xdr_encode_opaque(p, owner_name, owner_namelen); |
1da177e4 LT |
921 | } |
922 | if (iap->ia_valid & ATTR_GID) { | |
923 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
811652bd | 924 | p = xdr_encode_opaque(p, owner_group, owner_grouplen); |
1da177e4 LT |
925 | } |
926 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
927 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 BH |
928 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
929 | *p++ = cpu_to_be32(0); | |
d3f6baaa TM |
930 | *p++ = cpu_to_be32(iap->ia_atime.tv_sec); |
931 | *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); | |
1da177e4 LT |
932 | } |
933 | else if (iap->ia_valid & ATTR_ATIME) { | |
934 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
e75bc1c8 | 935 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 LT |
936 | } |
937 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
938 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 BH |
939 | *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); |
940 | *p++ = cpu_to_be32(0); | |
941 | *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); | |
942 | *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); | |
1da177e4 LT |
943 | } |
944 | else if (iap->ia_valid & ATTR_MTIME) { | |
945 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
e75bc1c8 | 946 | *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); |
1da177e4 | 947 | } |
6c0195a4 | 948 | |
1da177e4 LT |
949 | /* |
950 | * Now we backfill the bitmap and the attribute buffer length. | |
951 | */ | |
952 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 953 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
954 | len, ((char *)p - (char *)q) + 4); |
955 | BUG(); | |
956 | } | |
957 | len = (char *)p - (char *)q - 12; | |
958 | *q++ = htonl(bmval0); | |
959 | *q++ = htonl(bmval1); | |
34558513 | 960 | *q = htonl(len); |
1da177e4 | 961 | |
1da177e4 | 962 | /* out: */ |
1da177e4 LT |
963 | } |
964 | ||
cf8cdbe5 | 965 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 966 | { |
8687b63a | 967 | __be32 *p; |
1da177e4 | 968 | |
13c65ce9 | 969 | p = reserve_space(xdr, 8); |
e75bc1c8 | 970 | *p++ = cpu_to_be32(OP_ACCESS); |
34558513 | 971 | *p = cpu_to_be32(access); |
d017931c | 972 | hdr->nops++; |
dadf0c27 | 973 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
974 | } |
975 | ||
cf8cdbe5 | 976 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 977 | { |
8687b63a | 978 | __be32 *p; |
1da177e4 | 979 | |
13c65ce9 | 980 | p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); |
e75bc1c8 BH |
981 | *p++ = cpu_to_be32(OP_CLOSE); |
982 | *p++ = cpu_to_be32(arg->seqid->sequence->counter); | |
34558513 | 983 | xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 984 | hdr->nops++; |
dadf0c27 | 985 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
986 | } |
987 | ||
cf8cdbe5 | 988 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 989 | { |
8687b63a | 990 | __be32 *p; |
6c0195a4 | 991 | |
13c65ce9 | 992 | p = reserve_space(xdr, 16); |
e75bc1c8 | 993 | *p++ = cpu_to_be32(OP_COMMIT); |
b95be5a9 | 994 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 995 | *p = cpu_to_be32(args->count); |
d017931c | 996 | hdr->nops++; |
dadf0c27 | 997 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
998 | } |
999 | ||
cf8cdbe5 | 1000 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 1001 | { |
8687b63a | 1002 | __be32 *p; |
6c0195a4 | 1003 | |
13c65ce9 | 1004 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1005 | *p++ = cpu_to_be32(OP_CREATE); |
34558513 | 1006 | *p = cpu_to_be32(create->ftype); |
1da177e4 LT |
1007 | |
1008 | switch (create->ftype) { | |
1009 | case NF4LNK: | |
13c65ce9 | 1010 | p = reserve_space(xdr, 4); |
34558513 | 1011 | *p = cpu_to_be32(create->u.symlink.len); |
94a6d753 | 1012 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); |
1da177e4 LT |
1013 | break; |
1014 | ||
1015 | case NF4BLK: case NF4CHR: | |
13c65ce9 | 1016 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1017 | *p++ = cpu_to_be32(create->u.device.specdata1); |
34558513 | 1018 | *p = cpu_to_be32(create->u.device.specdata2); |
1da177e4 LT |
1019 | break; |
1020 | ||
1021 | default: | |
1022 | break; | |
1023 | } | |
1024 | ||
811652bd | 1025 | encode_string(xdr, create->name->len, create->name->name); |
d017931c | 1026 | hdr->nops++; |
dadf0c27 | 1027 | hdr->replen += decode_create_maxsz; |
1da177e4 | 1028 | |
cf8cdbe5 | 1029 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
1030 | } |
1031 | ||
cf8cdbe5 | 1032 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 1033 | { |
05d564fe | 1034 | __be32 *p; |
1da177e4 | 1035 | |
13c65ce9 | 1036 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1037 | *p++ = cpu_to_be32(OP_GETATTR); |
1038 | *p++ = cpu_to_be32(1); | |
34558513 | 1039 | *p = cpu_to_be32(bitmap); |
d017931c | 1040 | hdr->nops++; |
dadf0c27 | 1041 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
1042 | } |
1043 | ||
cf8cdbe5 | 1044 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 1045 | { |
05d564fe | 1046 | __be32 *p; |
1da177e4 | 1047 | |
13c65ce9 | 1048 | p = reserve_space(xdr, 16); |
e75bc1c8 BH |
1049 | *p++ = cpu_to_be32(OP_GETATTR); |
1050 | *p++ = cpu_to_be32(2); | |
1051 | *p++ = cpu_to_be32(bm0); | |
34558513 | 1052 | *p = cpu_to_be32(bm1); |
d017931c | 1053 | hdr->nops++; |
dadf0c27 | 1054 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
1055 | } |
1056 | ||
cf8cdbe5 | 1057 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1058 | { |
cf8cdbe5 AA |
1059 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
1060 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
1061 | } |
1062 | ||
cf8cdbe5 | 1063 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 1064 | { |
cf8cdbe5 AA |
1065 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
1066 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
1067 | } |
1068 | ||
cf8cdbe5 | 1069 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 1070 | { |
cf8cdbe5 AA |
1071 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
1072 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
1073 | } |
1074 | ||
cf8cdbe5 | 1075 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1076 | { |
8687b63a | 1077 | __be32 *p; |
1da177e4 | 1078 | |
13c65ce9 | 1079 | p = reserve_space(xdr, 4); |
34558513 | 1080 | *p = cpu_to_be32(OP_GETFH); |
d017931c | 1081 | hdr->nops++; |
dadf0c27 | 1082 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
1083 | } |
1084 | ||
cf8cdbe5 | 1085 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1086 | { |
8687b63a | 1087 | __be32 *p; |
1da177e4 | 1088 | |
13c65ce9 | 1089 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1090 | *p++ = cpu_to_be32(OP_LINK); |
811652bd | 1091 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1092 | hdr->nops++; |
dadf0c27 | 1093 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
1094 | } |
1095 | ||
911d1aaf TM |
1096 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
1097 | { | |
1098 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
1099 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
1100 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
1101 | } | |
1102 | ||
1103 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
1104 | { | |
1105 | if (fl->fl_end == OFFSET_MAX) | |
1106 | return ~(uint64_t)0; | |
1107 | return fl->fl_end - fl->fl_start + 1; | |
1108 | } | |
1109 | ||
daccbded TM |
1110 | static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) |
1111 | { | |
1112 | __be32 *p; | |
1113 | ||
d035c36c | 1114 | p = reserve_space(xdr, 32); |
daccbded | 1115 | p = xdr_encode_hyper(p, lowner->clientid); |
d035c36c | 1116 | *p++ = cpu_to_be32(20); |
daccbded | 1117 | p = xdr_encode_opaque_fixed(p, "lock id:", 8); |
d035c36c | 1118 | *p++ = cpu_to_be32(lowner->s_dev); |
daccbded TM |
1119 | xdr_encode_hyper(p, lowner->id); |
1120 | } | |
1121 | ||
1da177e4 LT |
1122 | /* |
1123 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
1124 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
1125 | */ | |
cf8cdbe5 | 1126 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 1127 | { |
8687b63a | 1128 | __be32 *p; |
1da177e4 | 1129 | |
13c65ce9 | 1130 | p = reserve_space(xdr, 32); |
e75bc1c8 BH |
1131 | *p++ = cpu_to_be32(OP_LOCK); |
1132 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); | |
1133 | *p++ = cpu_to_be32(args->reclaim); | |
b95be5a9 BH |
1134 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1135 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
34558513 | 1136 | *p = cpu_to_be32(args->new_lock_owner); |
911d1aaf | 1137 | if (args->new_lock_owner){ |
daccbded | 1138 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1139 | *p++ = cpu_to_be32(args->open_seqid->sequence->counter); |
93f0cf25 | 1140 | p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); |
e75bc1c8 | 1141 | *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); |
daccbded | 1142 | encode_lockowner(xdr, &args->lock_owner); |
1da177e4 LT |
1143 | } |
1144 | else { | |
13c65ce9 | 1145 | p = reserve_space(xdr, NFS4_STATEID_SIZE+4); |
93f0cf25 | 1146 | p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1147 | *p = cpu_to_be32(args->lock_seqid->sequence->counter); |
1da177e4 | 1148 | } |
d017931c | 1149 | hdr->nops++; |
dadf0c27 | 1150 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
1151 | } |
1152 | ||
cf8cdbe5 | 1153 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 1154 | { |
8687b63a | 1155 | __be32 *p; |
1da177e4 | 1156 | |
daccbded | 1157 | p = reserve_space(xdr, 24); |
e75bc1c8 BH |
1158 | *p++ = cpu_to_be32(OP_LOCKT); |
1159 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
b95be5a9 BH |
1160 | p = xdr_encode_hyper(p, args->fl->fl_start); |
1161 | p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); | |
daccbded | 1162 | encode_lockowner(xdr, &args->lock_owner); |
d017931c | 1163 | hdr->nops++; |
dadf0c27 | 1164 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
1165 | } |
1166 | ||
cf8cdbe5 | 1167 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 1168 | { |
8687b63a | 1169 | __be32 *p; |
1da177e4 | 1170 | |
13c65ce9 | 1171 | p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); |
e75bc1c8 BH |
1172 | *p++ = cpu_to_be32(OP_LOCKU); |
1173 | *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); | |
1174 | *p++ = cpu_to_be32(args->seqid->sequence->counter); | |
93f0cf25 | 1175 | p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); |
b95be5a9 | 1176 | p = xdr_encode_hyper(p, args->fl->fl_start); |
34558513 | 1177 | xdr_encode_hyper(p, nfs4_lock_length(args->fl)); |
d017931c | 1178 | hdr->nops++; |
dadf0c27 | 1179 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
1180 | } |
1181 | ||
d3c7b7cc TM |
1182 | static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) |
1183 | { | |
1184 | __be32 *p; | |
1185 | ||
1186 | p = reserve_space(xdr, 4); | |
1187 | *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); | |
1188 | encode_lockowner(xdr, lowner); | |
1189 | hdr->nops++; | |
1190 | hdr->replen += decode_release_lockowner_maxsz; | |
1191 | } | |
1192 | ||
cf8cdbe5 | 1193 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
1194 | { |
1195 | int len = name->len; | |
8687b63a | 1196 | __be32 *p; |
1da177e4 | 1197 | |
13c65ce9 | 1198 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1199 | *p++ = cpu_to_be32(OP_LOOKUP); |
811652bd | 1200 | xdr_encode_opaque(p, name->name, len); |
d017931c | 1201 | hdr->nops++; |
dadf0c27 | 1202 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
1203 | } |
1204 | ||
dc0b027d | 1205 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 1206 | { |
8687b63a | 1207 | __be32 *p; |
1da177e4 | 1208 | |
13c65ce9 | 1209 | p = reserve_space(xdr, 8); |
dc0b027d | 1210 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe | 1211 | case FMODE_READ: |
e75bc1c8 | 1212 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); |
05d564fe AA |
1213 | break; |
1214 | case FMODE_WRITE: | |
e75bc1c8 | 1215 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); |
05d564fe AA |
1216 | break; |
1217 | case FMODE_READ|FMODE_WRITE: | |
e75bc1c8 | 1218 | *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); |
05d564fe AA |
1219 | break; |
1220 | default: | |
e75bc1c8 | 1221 | *p++ = cpu_to_be32(0); |
1da177e4 | 1222 | } |
34558513 | 1223 | *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ |
1da177e4 LT |
1224 | } |
1225 | ||
1226 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1227 | { | |
8687b63a | 1228 | __be32 *p; |
1da177e4 LT |
1229 | /* |
1230 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1231 | * owner 4 = 32 | |
1232 | */ | |
13c65ce9 | 1233 | p = reserve_space(xdr, 8); |
e75bc1c8 | 1234 | *p++ = cpu_to_be32(OP_OPEN); |
34558513 | 1235 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1236 | encode_share_access(xdr, arg->fmode); |
d035c36c | 1237 | p = reserve_space(xdr, 32); |
b95be5a9 | 1238 | p = xdr_encode_hyper(p, arg->clientid); |
d035c36c | 1239 | *p++ = cpu_to_be32(20); |
93f0cf25 | 1240 | p = xdr_encode_opaque_fixed(p, "open id:", 8); |
d035c36c | 1241 | *p++ = cpu_to_be32(arg->server->s_dev); |
34558513 | 1242 | xdr_encode_hyper(p, arg->id); |
1da177e4 LT |
1243 | } |
1244 | ||
1245 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1246 | { | |
8687b63a | 1247 | __be32 *p; |
4882ef72 | 1248 | struct nfs_client *clp; |
1da177e4 | 1249 | |
13c65ce9 | 1250 | p = reserve_space(xdr, 4); |
1da177e4 | 1251 | switch(arg->open_flags & O_EXCL) { |
05d564fe | 1252 | case 0: |
34558513 | 1253 | *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); |
05d564fe AA |
1254 | encode_attrs(xdr, arg->u.attrs, arg->server); |
1255 | break; | |
1256 | default: | |
4882ef72 | 1257 | clp = arg->server->nfs_client; |
a4432345 | 1258 | if (clp->cl_mvops->minor_version > 0) { |
4882ef72 AB |
1259 | if (nfs4_has_persistent_session(clp)) { |
1260 | *p = cpu_to_be32(NFS4_CREATE_GUARDED); | |
1261 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1262 | } else { | |
1263 | struct iattr dummy; | |
1264 | ||
1265 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); | |
1266 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1267 | dummy.ia_valid = 0; | |
1268 | encode_attrs(xdr, &dummy, arg->server); | |
1269 | } | |
1270 | } else { | |
1271 | *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); | |
1272 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1273 | } | |
1da177e4 LT |
1274 | } |
1275 | } | |
1276 | ||
1277 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1278 | { | |
8687b63a | 1279 | __be32 *p; |
1da177e4 | 1280 | |
13c65ce9 | 1281 | p = reserve_space(xdr, 4); |
1da177e4 | 1282 | switch (arg->open_flags & O_CREAT) { |
05d564fe | 1283 | case 0: |
34558513 | 1284 | *p = cpu_to_be32(NFS4_OPEN_NOCREATE); |
05d564fe AA |
1285 | break; |
1286 | default: | |
1287 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
34558513 | 1288 | *p = cpu_to_be32(NFS4_OPEN_CREATE); |
05d564fe | 1289 | encode_createmode(xdr, arg); |
1da177e4 LT |
1290 | } |
1291 | } | |
1292 | ||
bd7bf9d5 | 1293 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1294 | { |
8687b63a | 1295 | __be32 *p; |
1da177e4 | 1296 | |
13c65ce9 | 1297 | p = reserve_space(xdr, 4); |
1da177e4 | 1298 | switch (delegation_type) { |
05d564fe | 1299 | case 0: |
34558513 | 1300 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); |
05d564fe AA |
1301 | break; |
1302 | case FMODE_READ: | |
34558513 | 1303 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); |
05d564fe AA |
1304 | break; |
1305 | case FMODE_WRITE|FMODE_READ: | |
34558513 | 1306 | *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); |
05d564fe AA |
1307 | break; |
1308 | default: | |
1309 | BUG(); | |
1da177e4 LT |
1310 | } |
1311 | } | |
1312 | ||
1313 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1314 | { | |
8687b63a | 1315 | __be32 *p; |
1da177e4 | 1316 | |
13c65ce9 | 1317 | p = reserve_space(xdr, 4); |
34558513 | 1318 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); |
1da177e4 LT |
1319 | encode_string(xdr, name->len, name->name); |
1320 | } | |
1321 | ||
bd7bf9d5 | 1322 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1323 | { |
8687b63a | 1324 | __be32 *p; |
1da177e4 | 1325 | |
13c65ce9 | 1326 | p = reserve_space(xdr, 4); |
34558513 | 1327 | *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); |
1da177e4 LT |
1328 | encode_delegation_type(xdr, type); |
1329 | } | |
1330 | ||
1331 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1332 | { | |
8687b63a | 1333 | __be32 *p; |
1da177e4 | 1334 | |
13c65ce9 | 1335 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1336 | *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
34558513 | 1337 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1338 | encode_string(xdr, name->len, name->name); |
1339 | } | |
1340 | ||
cf8cdbe5 | 1341 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1342 | { |
1343 | encode_openhdr(xdr, arg); | |
1344 | encode_opentype(xdr, arg); | |
1345 | switch (arg->claim) { | |
05d564fe AA |
1346 | case NFS4_OPEN_CLAIM_NULL: |
1347 | encode_claim_null(xdr, arg->name); | |
1348 | break; | |
1349 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1350 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1351 | break; | |
1352 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1353 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1354 | break; | |
1355 | default: | |
1356 | BUG(); | |
1da177e4 | 1357 | } |
d017931c | 1358 | hdr->nops++; |
dadf0c27 | 1359 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1360 | } |
1361 | ||
cf8cdbe5 | 1362 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1363 | { |
8687b63a | 1364 | __be32 *p; |
1da177e4 | 1365 | |
13c65ce9 | 1366 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1367 | *p++ = cpu_to_be32(OP_OPEN_CONFIRM); |
93f0cf25 | 1368 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1369 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
d017931c | 1370 | hdr->nops++; |
dadf0c27 | 1371 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1372 | } |
1373 | ||
cf8cdbe5 | 1374 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1375 | { |
8687b63a | 1376 | __be32 *p; |
1da177e4 | 1377 | |
13c65ce9 | 1378 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); |
e75bc1c8 | 1379 | *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); |
93f0cf25 | 1380 | p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); |
34558513 | 1381 | *p = cpu_to_be32(arg->seqid->sequence->counter); |
dc0b027d | 1382 | encode_share_access(xdr, arg->fmode); |
d017931c | 1383 | hdr->nops++; |
dadf0c27 | 1384 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1385 | } |
1386 | ||
cf8cdbe5 | 1387 | static void |
d017931c | 1388 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1389 | { |
1390 | int len = fh->size; | |
8687b63a | 1391 | __be32 *p; |
1da177e4 | 1392 | |
13c65ce9 | 1393 | p = reserve_space(xdr, 8 + len); |
e75bc1c8 | 1394 | *p++ = cpu_to_be32(OP_PUTFH); |
811652bd | 1395 | xdr_encode_opaque(p, fh->data, len); |
d017931c | 1396 | hdr->nops++; |
dadf0c27 | 1397 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1398 | } |
1399 | ||
cf8cdbe5 | 1400 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1401 | { |
05d564fe | 1402 | __be32 *p; |
6c0195a4 | 1403 | |
13c65ce9 | 1404 | p = reserve_space(xdr, 4); |
34558513 | 1405 | *p = cpu_to_be32(OP_PUTROOTFH); |
d017931c | 1406 | hdr->nops++; |
dadf0c27 | 1407 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1408 | } |
1409 | ||
89d1ea65 | 1410 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) |
1da177e4 | 1411 | { |
1da177e4 | 1412 | nfs4_stateid stateid; |
8687b63a | 1413 | __be32 *p; |
1da177e4 | 1414 | |
13c65ce9 | 1415 | p = reserve_space(xdr, NFS4_STATEID_SIZE); |
1da177e4 | 1416 | if (ctx->state != NULL) { |
77041ed9 | 1417 | nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); |
89d1ea65 AA |
1418 | if (zero_seqid) |
1419 | stateid.stateid.seqid = 0; | |
34558513 | 1420 | xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1421 | } else |
34558513 | 1422 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1423 | } |
1424 | ||
cf8cdbe5 | 1425 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1426 | { |
8687b63a | 1427 | __be32 *p; |
1da177e4 | 1428 | |
13c65ce9 | 1429 | p = reserve_space(xdr, 4); |
34558513 | 1430 | *p = cpu_to_be32(OP_READ); |
1da177e4 | 1431 | |
89d1ea65 AA |
1432 | encode_stateid(xdr, args->context, args->lock_context, |
1433 | hdr->minorversion); | |
1da177e4 | 1434 | |
13c65ce9 | 1435 | p = reserve_space(xdr, 12); |
b95be5a9 | 1436 | p = xdr_encode_hyper(p, args->offset); |
34558513 | 1437 | *p = cpu_to_be32(args->count); |
d017931c | 1438 | hdr->nops++; |
dadf0c27 | 1439 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1440 | } |
1441 | ||
cf8cdbe5 | 1442 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1443 | { |
82f2e547 | 1444 | uint32_t attrs[2] = {0, 0}; |
6f7a35bd | 1445 | uint32_t dircount = readdir->count >> 1; |
8687b63a | 1446 | __be32 *p; |
1da177e4 | 1447 | |
82f2e547 BS |
1448 | if (readdir->plus) { |
1449 | attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| | |
1450 | FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE; | |
1451 | attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| | |
1452 | FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| | |
1453 | FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| | |
1454 | FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; | |
6f7a35bd | 1455 | dircount >>= 1; |
82f2e547 BS |
1456 | } |
1457 | attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID; | |
1458 | attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID; | |
6f7a35bd TM |
1459 | /* Switch to mounted_on_fileid if the server supports it */ |
1460 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1461 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1462 | else | |
1463 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
82f2e547 | 1464 | |
13c65ce9 | 1465 | p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); |
e75bc1c8 | 1466 | *p++ = cpu_to_be32(OP_READDIR); |
b95be5a9 | 1467 | p = xdr_encode_hyper(p, readdir->cookie); |
93f0cf25 | 1468 | p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); |
6f7a35bd | 1469 | *p++ = cpu_to_be32(dircount); |
e75bc1c8 BH |
1470 | *p++ = cpu_to_be32(readdir->count); |
1471 | *p++ = cpu_to_be32(2); | |
82f2e547 | 1472 | |
e75bc1c8 | 1473 | *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); |
34558513 | 1474 | *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); |
d017931c | 1475 | hdr->nops++; |
dadf0c27 | 1476 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1477 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1478 | __func__, | |
eadf4598 TM |
1479 | (unsigned long long)readdir->cookie, |
1480 | ((u32 *)readdir->verifier.data)[0], | |
1481 | ((u32 *)readdir->verifier.data)[1], | |
1482 | attrs[0] & readdir->bitmask[0], | |
1483 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1484 | } |
1485 | ||
cf8cdbe5 | 1486 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1487 | { |
8687b63a | 1488 | __be32 *p; |
1da177e4 | 1489 | |
13c65ce9 | 1490 | p = reserve_space(xdr, 4); |
34558513 | 1491 | *p = cpu_to_be32(OP_READLINK); |
d017931c | 1492 | hdr->nops++; |
dadf0c27 | 1493 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1494 | } |
1495 | ||
cf8cdbe5 | 1496 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1497 | { |
8687b63a | 1498 | __be32 *p; |
1da177e4 | 1499 | |
13c65ce9 | 1500 | p = reserve_space(xdr, 8 + name->len); |
e75bc1c8 | 1501 | *p++ = cpu_to_be32(OP_REMOVE); |
811652bd | 1502 | xdr_encode_opaque(p, name->name, name->len); |
d017931c | 1503 | hdr->nops++; |
dadf0c27 | 1504 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1505 | } |
1506 | ||
cf8cdbe5 | 1507 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1508 | { |
8687b63a | 1509 | __be32 *p; |
1da177e4 | 1510 | |
811652bd BH |
1511 | p = reserve_space(xdr, 4); |
1512 | *p = cpu_to_be32(OP_RENAME); | |
1513 | encode_string(xdr, oldname->len, oldname->name); | |
1514 | encode_string(xdr, newname->len, newname->name); | |
d017931c | 1515 | hdr->nops++; |
dadf0c27 | 1516 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1517 | } |
1518 | ||
cf8cdbe5 | 1519 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1520 | { |
8687b63a | 1521 | __be32 *p; |
1da177e4 | 1522 | |
13c65ce9 | 1523 | p = reserve_space(xdr, 12); |
e75bc1c8 | 1524 | *p++ = cpu_to_be32(OP_RENEW); |
34558513 | 1525 | xdr_encode_hyper(p, client_stateid->cl_clientid); |
d017931c | 1526 | hdr->nops++; |
dadf0c27 | 1527 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1528 | } |
1529 | ||
cf8cdbe5 | 1530 | static void |
d017931c | 1531 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1532 | { |
8687b63a | 1533 | __be32 *p; |
56ae19f3 | 1534 | |
13c65ce9 | 1535 | p = reserve_space(xdr, 4); |
34558513 | 1536 | *p = cpu_to_be32(OP_RESTOREFH); |
d017931c | 1537 | hdr->nops++; |
dadf0c27 | 1538 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1539 | } |
1540 | ||
9f06c719 | 1541 | static void |
d017931c | 1542 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1543 | { |
8687b63a | 1544 | __be32 *p; |
23ec6965 | 1545 | |
13c65ce9 | 1546 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1547 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1548 | xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); |
13c65ce9 | 1549 | p = reserve_space(xdr, 2*4); |
e75bc1c8 | 1550 | *p++ = cpu_to_be32(1); |
34558513 | 1551 | *p = cpu_to_be32(FATTR4_WORD0_ACL); |
9f06c719 | 1552 | BUG_ON(arg->acl_len % 4); |
13c65ce9 | 1553 | p = reserve_space(xdr, 4); |
34558513 | 1554 | *p = cpu_to_be32(arg->acl_len); |
23ec6965 | 1555 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); |
d017931c | 1556 | hdr->nops++; |
dadf0c27 | 1557 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1558 | } |
1559 | ||
cf8cdbe5 | 1560 | static void |
d017931c | 1561 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1562 | { |
8687b63a | 1563 | __be32 *p; |
1da177e4 | 1564 | |
13c65ce9 | 1565 | p = reserve_space(xdr, 4); |
34558513 | 1566 | *p = cpu_to_be32(OP_SAVEFH); |
d017931c | 1567 | hdr->nops++; |
dadf0c27 | 1568 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1569 | } |
1570 | ||
cf8cdbe5 | 1571 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1572 | { |
8687b63a | 1573 | __be32 *p; |
6c0195a4 | 1574 | |
13c65ce9 | 1575 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
e75bc1c8 | 1576 | *p++ = cpu_to_be32(OP_SETATTR); |
34558513 | 1577 | xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1578 | hdr->nops++; |
dadf0c27 | 1579 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1580 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1581 | } |
1582 | ||
cf8cdbe5 | 1583 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1584 | { |
8687b63a | 1585 | __be32 *p; |
1da177e4 | 1586 | |
13c65ce9 | 1587 | p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1588 | *p++ = cpu_to_be32(OP_SETCLIENTID); |
34558513 | 1589 | xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1590 | |
1591 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
13c65ce9 | 1592 | p = reserve_space(xdr, 4); |
34558513 | 1593 | *p = cpu_to_be32(setclientid->sc_prog); |
1da177e4 LT |
1594 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); |
1595 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
13c65ce9 | 1596 | p = reserve_space(xdr, 4); |
34558513 | 1597 | *p = cpu_to_be32(setclientid->sc_cb_ident); |
d017931c | 1598 | hdr->nops++; |
dadf0c27 | 1599 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1600 | } |
1601 | ||
bb8b27e5 | 1602 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) |
1da177e4 | 1603 | { |
05d564fe | 1604 | __be32 *p; |
1da177e4 | 1605 | |
13c65ce9 | 1606 | p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); |
e75bc1c8 | 1607 | *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); |
bb8b27e5 TM |
1608 | p = xdr_encode_hyper(p, arg->clientid); |
1609 | xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1610 | hdr->nops++; |
dadf0c27 | 1611 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1612 | } |
1613 | ||
cf8cdbe5 | 1614 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1615 | { |
8687b63a | 1616 | __be32 *p; |
1da177e4 | 1617 | |
13c65ce9 | 1618 | p = reserve_space(xdr, 4); |
34558513 | 1619 | *p = cpu_to_be32(OP_WRITE); |
1da177e4 | 1620 | |
89d1ea65 AA |
1621 | encode_stateid(xdr, args->context, args->lock_context, |
1622 | hdr->minorversion); | |
1da177e4 | 1623 | |
13c65ce9 | 1624 | p = reserve_space(xdr, 16); |
b95be5a9 | 1625 | p = xdr_encode_hyper(p, args->offset); |
e75bc1c8 | 1626 | *p++ = cpu_to_be32(args->stable); |
34558513 | 1627 | *p = cpu_to_be32(args->count); |
1da177e4 LT |
1628 | |
1629 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1630 | hdr->nops++; |
dadf0c27 | 1631 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1632 | } |
1633 | ||
cf8cdbe5 | 1634 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1635 | { |
8687b63a | 1636 | __be32 *p; |
1da177e4 | 1637 | |
13c65ce9 | 1638 | p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); |
1da177e4 | 1639 | |
e75bc1c8 | 1640 | *p++ = cpu_to_be32(OP_DELEGRETURN); |
34558513 | 1641 | xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1642 | hdr->nops++; |
dadf0c27 | 1643 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 | 1644 | } |
9b7b9fcc | 1645 | |
99fe60d0 | 1646 | #if defined(CONFIG_NFS_V4_1) |
9b7b9fcc | 1647 | /* NFSv4.1 operations */ |
99fe60d0 BH |
1648 | static void encode_exchange_id(struct xdr_stream *xdr, |
1649 | struct nfs41_exchange_id_args *args, | |
1650 | struct compound_hdr *hdr) | |
1651 | { | |
1652 | __be32 *p; | |
1653 | ||
13c65ce9 | 1654 | p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); |
e75bc1c8 | 1655 | *p++ = cpu_to_be32(OP_EXCHANGE_ID); |
34558513 | 1656 | xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); |
99fe60d0 BH |
1657 | |
1658 | encode_string(xdr, args->id_len, args->id); | |
1659 | ||
13c65ce9 | 1660 | p = reserve_space(xdr, 12); |
e75bc1c8 BH |
1661 | *p++ = cpu_to_be32(args->flags); |
1662 | *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ | |
34558513 | 1663 | *p = cpu_to_be32(0); /* zero length implementation id array */ |
99fe60d0 BH |
1664 | hdr->nops++; |
1665 | hdr->replen += decode_exchange_id_maxsz; | |
1666 | } | |
fc931582 AA |
1667 | |
1668 | static void encode_create_session(struct xdr_stream *xdr, | |
1669 | struct nfs41_create_session_args *args, | |
1670 | struct compound_hdr *hdr) | |
1671 | { | |
1672 | __be32 *p; | |
1673 | char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; | |
1674 | uint32_t len; | |
1675 | struct nfs_client *clp = args->client; | |
8e0d46e1 MS |
1676 | u32 max_resp_sz_cached; |
1677 | ||
1678 | /* | |
1679 | * Assumes OPEN is the biggest non-idempotent compound. | |
1680 | * 2 is the verifier. | |
1681 | */ | |
1682 | max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + | |
1683 | RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; | |
fc931582 | 1684 | |
42edd698 BH |
1685 | len = scnprintf(machine_name, sizeof(machine_name), "%s", |
1686 | clp->cl_ipaddr); | |
fc931582 | 1687 | |
13c65ce9 | 1688 | p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); |
42edd698 | 1689 | *p++ = cpu_to_be32(OP_CREATE_SESSION); |
114f64b5 | 1690 | p = xdr_encode_hyper(p, clp->cl_clientid); |
e75bc1c8 BH |
1691 | *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ |
1692 | *p++ = cpu_to_be32(args->flags); /*flags */ | |
fc931582 | 1693 | |
fc931582 | 1694 | /* Fore Channel */ |
e75bc1c8 BH |
1695 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1696 | *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ | |
1697 | *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ | |
8e0d46e1 | 1698 | *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ |
e75bc1c8 BH |
1699 | *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ |
1700 | *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ | |
1701 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 AA |
1702 | |
1703 | /* Back Channel */ | |
e75bc1c8 BH |
1704 | *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ |
1705 | *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ | |
1706 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ | |
1707 | *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ | |
1708 | *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ | |
1709 | *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ | |
1710 | *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ | |
fc931582 | 1711 | |
e75bc1c8 | 1712 | *p++ = cpu_to_be32(args->cb_program); /* cb_program */ |
e75bc1c8 | 1713 | *p++ = cpu_to_be32(1); |
e75bc1c8 | 1714 | *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ |
fc931582 AA |
1715 | |
1716 | /* authsys_parms rfc1831 */ | |
e75bc1c8 | 1717 | *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ |
811652bd | 1718 | p = xdr_encode_opaque(p, machine_name, len); |
e75bc1c8 BH |
1719 | *p++ = cpu_to_be32(0); /* UID */ |
1720 | *p++ = cpu_to_be32(0); /* GID */ | |
34558513 | 1721 | *p = cpu_to_be32(0); /* No more gids */ |
fc931582 AA |
1722 | hdr->nops++; |
1723 | hdr->replen += decode_create_session_maxsz; | |
1724 | } | |
0f3e66c6 AA |
1725 | |
1726 | static void encode_destroy_session(struct xdr_stream *xdr, | |
1727 | struct nfs4_session *session, | |
1728 | struct compound_hdr *hdr) | |
1729 | { | |
1730 | __be32 *p; | |
13c65ce9 | 1731 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 | 1732 | *p++ = cpu_to_be32(OP_DESTROY_SESSION); |
34558513 | 1733 | xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
0f3e66c6 AA |
1734 | hdr->nops++; |
1735 | hdr->replen += decode_destroy_session_maxsz; | |
1736 | } | |
18019753 RL |
1737 | |
1738 | static void encode_reclaim_complete(struct xdr_stream *xdr, | |
1739 | struct nfs41_reclaim_complete_args *args, | |
1740 | struct compound_hdr *hdr) | |
1741 | { | |
1742 | __be32 *p; | |
1743 | ||
1744 | p = reserve_space(xdr, 8); | |
1745 | *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); | |
1746 | *p++ = cpu_to_be32(args->one_fs); | |
1747 | hdr->nops++; | |
1748 | hdr->replen += decode_reclaim_complete_maxsz; | |
1749 | } | |
99fe60d0 BH |
1750 | #endif /* CONFIG_NFS_V4_1 */ |
1751 | ||
9b7b9fcc AA |
1752 | static void encode_sequence(struct xdr_stream *xdr, |
1753 | const struct nfs4_sequence_args *args, | |
1754 | struct compound_hdr *hdr) | |
1755 | { | |
1756 | #if defined(CONFIG_NFS_V4_1) | |
1757 | struct nfs4_session *session = args->sa_session; | |
fc01cea9 AA |
1758 | struct nfs4_slot_table *tp; |
1759 | struct nfs4_slot *slot; | |
1760 | __be32 *p; | |
9b7b9fcc AA |
1761 | |
1762 | if (!session) | |
1763 | return; | |
1764 | ||
fc01cea9 AA |
1765 | tp = &session->fc_slot_table; |
1766 | ||
1767 | WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); | |
1768 | slot = tp->slots + args->sa_slotid; | |
1769 | ||
13c65ce9 | 1770 | p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); |
e75bc1c8 | 1771 | *p++ = cpu_to_be32(OP_SEQUENCE); |
fc01cea9 AA |
1772 | |
1773 | /* | |
1774 | * Sessionid + seqid + slotid + max slotid + cache_this | |
1775 | */ | |
1776 | dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " | |
1777 | "max_slotid=%d cache_this=%d\n", | |
1778 | __func__, | |
1779 | ((u32 *)session->sess_id.data)[0], | |
1780 | ((u32 *)session->sess_id.data)[1], | |
1781 | ((u32 *)session->sess_id.data)[2], | |
1782 | ((u32 *)session->sess_id.data)[3], | |
1783 | slot->seq_nr, args->sa_slotid, | |
1784 | tp->highest_used_slotid, args->sa_cache_this); | |
93f0cf25 | 1785 | p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); |
e75bc1c8 BH |
1786 | *p++ = cpu_to_be32(slot->seq_nr); |
1787 | *p++ = cpu_to_be32(args->sa_slotid); | |
1788 | *p++ = cpu_to_be32(tp->highest_used_slotid); | |
34558513 | 1789 | *p = cpu_to_be32(args->sa_cache_this); |
9b7b9fcc AA |
1790 | hdr->nops++; |
1791 | hdr->replen += decode_sequence_maxsz; | |
1792 | #endif /* CONFIG_NFS_V4_1 */ | |
1793 | } | |
1794 | ||
b1f69b75 AA |
1795 | #ifdef CONFIG_NFS_V4_1 |
1796 | static void | |
1797 | encode_getdeviceinfo(struct xdr_stream *xdr, | |
1798 | const struct nfs4_getdeviceinfo_args *args, | |
1799 | struct compound_hdr *hdr) | |
1800 | { | |
1801 | __be32 *p; | |
1802 | ||
1803 | p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); | |
1804 | *p++ = cpu_to_be32(OP_GETDEVICEINFO); | |
1805 | p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, | |
1806 | NFS4_DEVICEID4_SIZE); | |
1807 | *p++ = cpu_to_be32(args->pdev->layout_type); | |
1808 | *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ | |
1809 | *p++ = cpu_to_be32(0); /* bitmap length 0 */ | |
1810 | hdr->nops++; | |
1811 | hdr->replen += decode_getdeviceinfo_maxsz; | |
1812 | } | |
1813 | ||
1814 | static void | |
1815 | encode_layoutget(struct xdr_stream *xdr, | |
1816 | const struct nfs4_layoutget_args *args, | |
1817 | struct compound_hdr *hdr) | |
1818 | { | |
b1f69b75 AA |
1819 | __be32 *p; |
1820 | ||
1821 | p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); | |
1822 | *p++ = cpu_to_be32(OP_LAYOUTGET); | |
1823 | *p++ = cpu_to_be32(0); /* Signal layout available */ | |
1824 | *p++ = cpu_to_be32(args->type); | |
1825 | *p++ = cpu_to_be32(args->range.iomode); | |
1826 | p = xdr_encode_hyper(p, args->range.offset); | |
1827 | p = xdr_encode_hyper(p, args->range.length); | |
1828 | p = xdr_encode_hyper(p, args->minlength); | |
cf7d63f1 | 1829 | p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); |
b1f69b75 AA |
1830 | *p = cpu_to_be32(args->maxcount); |
1831 | ||
1832 | dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", | |
1833 | __func__, | |
1834 | args->type, | |
1835 | args->range.iomode, | |
1836 | (unsigned long)args->range.offset, | |
1837 | (unsigned long)args->range.length, | |
1838 | args->maxcount); | |
1839 | hdr->nops++; | |
1840 | hdr->replen += decode_layoutget_maxsz; | |
1841 | } | |
863a3c6c AA |
1842 | |
1843 | static int | |
1844 | encode_layoutcommit(struct xdr_stream *xdr, | |
1845 | const struct nfs4_layoutcommit_args *args, | |
1846 | struct compound_hdr *hdr) | |
1847 | { | |
1848 | __be32 *p; | |
1849 | ||
1850 | dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, | |
1851 | NFS_SERVER(args->inode)->pnfs_curr_ld->id); | |
1852 | ||
1853 | p = reserve_space(xdr, 48 + NFS4_STATEID_SIZE); | |
1854 | *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); | |
1855 | /* Only whole file layouts */ | |
1856 | p = xdr_encode_hyper(p, 0); /* offset */ | |
1857 | p = xdr_encode_hyper(p, NFS4_MAX_UINT64); /* length */ | |
1858 | *p++ = cpu_to_be32(0); /* reclaim */ | |
1859 | p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); | |
1860 | *p++ = cpu_to_be32(1); /* newoffset = TRUE */ | |
1861 | p = xdr_encode_hyper(p, args->lastbytewritten); | |
1862 | *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ | |
1863 | *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ | |
1864 | *p++ = cpu_to_be32(0); /* no file layout payload */ | |
1865 | ||
1866 | hdr->nops++; | |
1867 | hdr->replen += decode_layoutcommit_maxsz; | |
1868 | return 0; | |
1869 | } | |
b1f69b75 AA |
1870 | #endif /* CONFIG_NFS_V4_1 */ |
1871 | ||
1da177e4 LT |
1872 | /* |
1873 | * END OF "GENERIC" ENCODE ROUTINES. | |
1874 | */ | |
1875 | ||
66cc0429 BH |
1876 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1877 | { | |
1878 | #if defined(CONFIG_NFS_V4_1) | |
1879 | if (args->sa_session) | |
a4432345 | 1880 | return args->sa_session->clp->cl_mvops->minor_version; |
66cc0429 BH |
1881 | #endif /* CONFIG_NFS_V4_1 */ |
1882 | return 0; | |
1883 | } | |
1884 | ||
1da177e4 LT |
1885 | /* |
1886 | * Encode an ACCESS request | |
1887 | */ | |
9f06c719 CL |
1888 | static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, |
1889 | const struct nfs4_accessargs *args) | |
1da177e4 | 1890 | { |
1da177e4 | 1891 | struct compound_hdr hdr = { |
66cc0429 | 1892 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1893 | }; |
1da177e4 | 1894 | |
9f06c719 CL |
1895 | encode_compound_hdr(xdr, req, &hdr); |
1896 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1897 | encode_putfh(xdr, args->fh, &hdr); | |
1898 | encode_access(xdr, args->access, &hdr); | |
1899 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 1900 | encode_nops(&hdr); |
1da177e4 LT |
1901 | } |
1902 | ||
1903 | /* | |
1904 | * Encode LOOKUP request | |
1905 | */ | |
9f06c719 CL |
1906 | static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, |
1907 | const struct nfs4_lookup_arg *args) | |
1da177e4 | 1908 | { |
1da177e4 | 1909 | struct compound_hdr hdr = { |
66cc0429 | 1910 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1911 | }; |
1da177e4 | 1912 | |
9f06c719 CL |
1913 | encode_compound_hdr(xdr, req, &hdr); |
1914 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1915 | encode_putfh(xdr, args->dir_fh, &hdr); | |
1916 | encode_lookup(xdr, args->name, &hdr); | |
1917 | encode_getfh(xdr, &hdr); | |
1918 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 1919 | encode_nops(&hdr); |
1da177e4 LT |
1920 | } |
1921 | ||
1922 | /* | |
1923 | * Encode LOOKUP_ROOT request | |
1924 | */ | |
9f06c719 CL |
1925 | static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, |
1926 | struct xdr_stream *xdr, | |
1927 | const struct nfs4_lookup_root_arg *args) | |
1da177e4 | 1928 | { |
1da177e4 | 1929 | struct compound_hdr hdr = { |
66cc0429 | 1930 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1931 | }; |
1da177e4 | 1932 | |
9f06c719 CL |
1933 | encode_compound_hdr(xdr, req, &hdr); |
1934 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1935 | encode_putrootfh(xdr, &hdr); | |
1936 | encode_getfh(xdr, &hdr); | |
1937 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 1938 | encode_nops(&hdr); |
1da177e4 LT |
1939 | } |
1940 | ||
1941 | /* | |
1942 | * Encode REMOVE request | |
1943 | */ | |
9f06c719 CL |
1944 | static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, |
1945 | const struct nfs_removeargs *args) | |
1da177e4 | 1946 | { |
1da177e4 | 1947 | struct compound_hdr hdr = { |
66cc0429 | 1948 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1949 | }; |
1da177e4 | 1950 | |
9f06c719 CL |
1951 | encode_compound_hdr(xdr, req, &hdr); |
1952 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1953 | encode_putfh(xdr, args->fh, &hdr); | |
1954 | encode_remove(xdr, &args->name, &hdr); | |
1955 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 1956 | encode_nops(&hdr); |
1da177e4 LT |
1957 | } |
1958 | ||
1959 | /* | |
1960 | * Encode RENAME request | |
1961 | */ | |
9f06c719 CL |
1962 | static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, |
1963 | const struct nfs_renameargs *args) | |
1da177e4 | 1964 | { |
1da177e4 | 1965 | struct compound_hdr hdr = { |
66cc0429 | 1966 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1967 | }; |
1da177e4 | 1968 | |
9f06c719 CL |
1969 | encode_compound_hdr(xdr, req, &hdr); |
1970 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1971 | encode_putfh(xdr, args->old_dir, &hdr); | |
1972 | encode_savefh(xdr, &hdr); | |
1973 | encode_putfh(xdr, args->new_dir, &hdr); | |
1974 | encode_rename(xdr, args->old_name, args->new_name, &hdr); | |
1975 | encode_getfattr(xdr, args->bitmask, &hdr); | |
1976 | encode_restorefh(xdr, &hdr); | |
1977 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 1978 | encode_nops(&hdr); |
1da177e4 LT |
1979 | } |
1980 | ||
1981 | /* | |
1982 | * Encode LINK request | |
1983 | */ | |
9f06c719 CL |
1984 | static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, |
1985 | const struct nfs4_link_arg *args) | |
1da177e4 | 1986 | { |
1da177e4 | 1987 | struct compound_hdr hdr = { |
66cc0429 | 1988 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1989 | }; |
1da177e4 | 1990 | |
9f06c719 CL |
1991 | encode_compound_hdr(xdr, req, &hdr); |
1992 | encode_sequence(xdr, &args->seq_args, &hdr); | |
1993 | encode_putfh(xdr, args->fh, &hdr); | |
1994 | encode_savefh(xdr, &hdr); | |
1995 | encode_putfh(xdr, args->dir_fh, &hdr); | |
1996 | encode_link(xdr, args->name, &hdr); | |
1997 | encode_getfattr(xdr, args->bitmask, &hdr); | |
1998 | encode_restorefh(xdr, &hdr); | |
1999 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2000 | encode_nops(&hdr); |
1da177e4 LT |
2001 | } |
2002 | ||
2003 | /* | |
2004 | * Encode CREATE request | |
2005 | */ | |
9f06c719 CL |
2006 | static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, |
2007 | const struct nfs4_create_arg *args) | |
1da177e4 | 2008 | { |
1da177e4 | 2009 | struct compound_hdr hdr = { |
66cc0429 | 2010 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2011 | }; |
1da177e4 | 2012 | |
9f06c719 CL |
2013 | encode_compound_hdr(xdr, req, &hdr); |
2014 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2015 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2016 | encode_savefh(xdr, &hdr); | |
2017 | encode_create(xdr, args, &hdr); | |
2018 | encode_getfh(xdr, &hdr); | |
2019 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2020 | encode_restorefh(xdr, &hdr); | |
2021 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2022 | encode_nops(&hdr); |
1da177e4 LT |
2023 | } |
2024 | ||
2025 | /* | |
2026 | * Encode SYMLINK request | |
2027 | */ | |
9f06c719 CL |
2028 | static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, |
2029 | const struct nfs4_create_arg *args) | |
1da177e4 | 2030 | { |
9f06c719 | 2031 | nfs4_xdr_enc_create(req, xdr, args); |
1da177e4 LT |
2032 | } |
2033 | ||
2034 | /* | |
2035 | * Encode GETATTR request | |
2036 | */ | |
9f06c719 CL |
2037 | static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, |
2038 | const struct nfs4_getattr_arg *args) | |
1da177e4 | 2039 | { |
1da177e4 | 2040 | struct compound_hdr hdr = { |
66cc0429 | 2041 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2042 | }; |
1da177e4 | 2043 | |
9f06c719 CL |
2044 | encode_compound_hdr(xdr, req, &hdr); |
2045 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2046 | encode_putfh(xdr, args->fh, &hdr); | |
2047 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2048 | encode_nops(&hdr); |
1da177e4 LT |
2049 | } |
2050 | ||
2051 | /* | |
2052 | * Encode a CLOSE request | |
2053 | */ | |
9f06c719 CL |
2054 | static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, |
2055 | struct nfs_closeargs *args) | |
1da177e4 | 2056 | { |
05d564fe | 2057 | struct compound_hdr hdr = { |
66cc0429 | 2058 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2059 | }; |
05d564fe | 2060 | |
9f06c719 CL |
2061 | encode_compound_hdr(xdr, req, &hdr); |
2062 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2063 | encode_putfh(xdr, args->fh, &hdr); | |
2064 | encode_close(xdr, args, &hdr); | |
2065 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2066 | encode_nops(&hdr); |
1da177e4 LT |
2067 | } |
2068 | ||
2069 | /* | |
2070 | * Encode an OPEN request | |
2071 | */ | |
9f06c719 CL |
2072 | static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, |
2073 | struct nfs_openargs *args) | |
1da177e4 | 2074 | { |
1da177e4 | 2075 | struct compound_hdr hdr = { |
66cc0429 | 2076 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2077 | }; |
1da177e4 | 2078 | |
9f06c719 CL |
2079 | encode_compound_hdr(xdr, req, &hdr); |
2080 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2081 | encode_putfh(xdr, args->fh, &hdr); | |
2082 | encode_savefh(xdr, &hdr); | |
2083 | encode_open(xdr, args, &hdr); | |
2084 | encode_getfh(xdr, &hdr); | |
2085 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2086 | encode_restorefh(xdr, &hdr); | |
2087 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2088 | encode_nops(&hdr); |
1da177e4 LT |
2089 | } |
2090 | ||
2091 | /* | |
2092 | * Encode an OPEN_CONFIRM request | |
2093 | */ | |
9f06c719 CL |
2094 | static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, |
2095 | struct xdr_stream *xdr, | |
2096 | struct nfs_open_confirmargs *args) | |
1da177e4 | 2097 | { |
1da177e4 | 2098 | struct compound_hdr hdr = { |
d017931c | 2099 | .nops = 0, |
1da177e4 | 2100 | }; |
1da177e4 | 2101 | |
9f06c719 CL |
2102 | encode_compound_hdr(xdr, req, &hdr); |
2103 | encode_putfh(xdr, args->fh, &hdr); | |
2104 | encode_open_confirm(xdr, args, &hdr); | |
d017931c | 2105 | encode_nops(&hdr); |
1da177e4 LT |
2106 | } |
2107 | ||
2108 | /* | |
2109 | * Encode an OPEN request with no attributes. | |
2110 | */ | |
9f06c719 CL |
2111 | static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, |
2112 | struct xdr_stream *xdr, | |
2113 | struct nfs_openargs *args) | |
1da177e4 | 2114 | { |
1da177e4 | 2115 | struct compound_hdr hdr = { |
66cc0429 | 2116 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2117 | }; |
1da177e4 | 2118 | |
9f06c719 CL |
2119 | encode_compound_hdr(xdr, req, &hdr); |
2120 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2121 | encode_putfh(xdr, args->fh, &hdr); | |
2122 | encode_open(xdr, args, &hdr); | |
2123 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2124 | encode_nops(&hdr); |
1da177e4 LT |
2125 | } |
2126 | ||
2127 | /* | |
2128 | * Encode an OPEN_DOWNGRADE request | |
2129 | */ | |
9f06c719 CL |
2130 | static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, |
2131 | struct xdr_stream *xdr, | |
2132 | struct nfs_closeargs *args) | |
1da177e4 | 2133 | { |
1da177e4 | 2134 | struct compound_hdr hdr = { |
66cc0429 | 2135 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2136 | }; |
1da177e4 | 2137 | |
9f06c719 CL |
2138 | encode_compound_hdr(xdr, req, &hdr); |
2139 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2140 | encode_putfh(xdr, args->fh, &hdr); | |
2141 | encode_open_downgrade(xdr, args, &hdr); | |
2142 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2143 | encode_nops(&hdr); |
1da177e4 LT |
2144 | } |
2145 | ||
2146 | /* | |
2147 | * Encode a LOCK request | |
2148 | */ | |
9f06c719 CL |
2149 | static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, |
2150 | struct nfs_lock_args *args) | |
1da177e4 | 2151 | { |
1da177e4 | 2152 | struct compound_hdr hdr = { |
66cc0429 | 2153 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2154 | }; |
1da177e4 | 2155 | |
9f06c719 CL |
2156 | encode_compound_hdr(xdr, req, &hdr); |
2157 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2158 | encode_putfh(xdr, args->fh, &hdr); | |
2159 | encode_lock(xdr, args, &hdr); | |
d017931c | 2160 | encode_nops(&hdr); |
1da177e4 LT |
2161 | } |
2162 | ||
2163 | /* | |
2164 | * Encode a LOCKT request | |
2165 | */ | |
9f06c719 CL |
2166 | static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, |
2167 | struct nfs_lockt_args *args) | |
1da177e4 | 2168 | { |
1da177e4 | 2169 | struct compound_hdr hdr = { |
66cc0429 | 2170 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2171 | }; |
1da177e4 | 2172 | |
9f06c719 CL |
2173 | encode_compound_hdr(xdr, req, &hdr); |
2174 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2175 | encode_putfh(xdr, args->fh, &hdr); | |
2176 | encode_lockt(xdr, args, &hdr); | |
d017931c | 2177 | encode_nops(&hdr); |
1da177e4 LT |
2178 | } |
2179 | ||
2180 | /* | |
2181 | * Encode a LOCKU request | |
2182 | */ | |
9f06c719 CL |
2183 | static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, |
2184 | struct nfs_locku_args *args) | |
1da177e4 | 2185 | { |
1da177e4 | 2186 | struct compound_hdr hdr = { |
66cc0429 | 2187 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2188 | }; |
1da177e4 | 2189 | |
9f06c719 CL |
2190 | encode_compound_hdr(xdr, req, &hdr); |
2191 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2192 | encode_putfh(xdr, args->fh, &hdr); | |
2193 | encode_locku(xdr, args, &hdr); | |
d017931c | 2194 | encode_nops(&hdr); |
1da177e4 LT |
2195 | } |
2196 | ||
9f06c719 CL |
2197 | static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, |
2198 | struct xdr_stream *xdr, | |
2199 | struct nfs_release_lockowner_args *args) | |
d3c7b7cc | 2200 | { |
d3c7b7cc TM |
2201 | struct compound_hdr hdr = { |
2202 | .minorversion = 0, | |
2203 | }; | |
2204 | ||
9f06c719 CL |
2205 | encode_compound_hdr(xdr, req, &hdr); |
2206 | encode_release_lockowner(xdr, &args->lock_owner, &hdr); | |
d3c7b7cc | 2207 | encode_nops(&hdr); |
d3c7b7cc TM |
2208 | } |
2209 | ||
1da177e4 LT |
2210 | /* |
2211 | * Encode a READLINK request | |
2212 | */ | |
9f06c719 CL |
2213 | static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, |
2214 | const struct nfs4_readlink *args) | |
1da177e4 | 2215 | { |
1da177e4 | 2216 | struct compound_hdr hdr = { |
66cc0429 | 2217 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2218 | }; |
1da177e4 | 2219 | |
9f06c719 CL |
2220 | encode_compound_hdr(xdr, req, &hdr); |
2221 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2222 | encode_putfh(xdr, args->fh, &hdr); | |
2223 | encode_readlink(xdr, args, req, &hdr); | |
e3a535e1 | 2224 | |
28f56694 | 2225 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 2226 | args->pgbase, args->pglen); |
d017931c | 2227 | encode_nops(&hdr); |
1da177e4 LT |
2228 | } |
2229 | ||
2230 | /* | |
2231 | * Encode a READDIR request | |
2232 | */ | |
9f06c719 CL |
2233 | static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, |
2234 | const struct nfs4_readdir_arg *args) | |
1da177e4 | 2235 | { |
1da177e4 | 2236 | struct compound_hdr hdr = { |
66cc0429 | 2237 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2238 | }; |
1da177e4 | 2239 | |
9f06c719 CL |
2240 | encode_compound_hdr(xdr, req, &hdr); |
2241 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2242 | encode_putfh(xdr, args->fh, &hdr); | |
2243 | encode_readdir(xdr, args, req, &hdr); | |
d6ac02df | 2244 | |
28f56694 | 2245 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
2246 | args->pgbase, args->count); |
2247 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 2248 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 2249 | args->pgbase, args->count); |
d017931c | 2250 | encode_nops(&hdr); |
1da177e4 LT |
2251 | } |
2252 | ||
2253 | /* | |
2254 | * Encode a READ request | |
2255 | */ | |
9f06c719 CL |
2256 | static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, |
2257 | struct nfs_readargs *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_read(xdr, args, &hdr); | |
1da177e4 | 2267 | |
28f56694 | 2268 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 2269 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 2270 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 2271 | encode_nops(&hdr); |
1da177e4 LT |
2272 | } |
2273 | ||
2274 | /* | |
2275 | * Encode an SETATTR request | |
2276 | */ | |
9f06c719 CL |
2277 | static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, |
2278 | struct nfs_setattrargs *args) | |
1da177e4 | 2279 | { |
05d564fe | 2280 | struct compound_hdr hdr = { |
66cc0429 | 2281 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 2282 | }; |
05d564fe | 2283 | |
9f06c719 CL |
2284 | encode_compound_hdr(xdr, req, &hdr); |
2285 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2286 | encode_putfh(xdr, args->fh, &hdr); | |
2287 | encode_setattr(xdr, args, args->server, &hdr); | |
2288 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2289 | encode_nops(&hdr); |
1da177e4 LT |
2290 | } |
2291 | ||
029d105e BF |
2292 | /* |
2293 | * Encode a GETACL request | |
2294 | */ | |
9f06c719 CL |
2295 | static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, |
2296 | struct nfs_getaclargs *args) | |
029d105e | 2297 | { |
029d105e | 2298 | struct compound_hdr hdr = { |
66cc0429 | 2299 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 2300 | }; |
28f56694 | 2301 | uint32_t replen; |
029d105e | 2302 | |
9f06c719 CL |
2303 | encode_compound_hdr(xdr, req, &hdr); |
2304 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2305 | encode_putfh(xdr, args->fh, &hdr); | |
d327cf74 | 2306 | replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; |
9f06c719 | 2307 | encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); |
cf8cdbe5 | 2308 | |
28f56694 | 2309 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 2310 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 2311 | encode_nops(&hdr); |
029d105e BF |
2312 | } |
2313 | ||
1da177e4 LT |
2314 | /* |
2315 | * Encode a WRITE request | |
2316 | */ | |
9f06c719 CL |
2317 | static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, |
2318 | struct nfs_writeargs *args) | |
1da177e4 | 2319 | { |
1da177e4 | 2320 | struct compound_hdr hdr = { |
66cc0429 | 2321 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2322 | }; |
1da177e4 | 2323 | |
9f06c719 CL |
2324 | encode_compound_hdr(xdr, req, &hdr); |
2325 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2326 | encode_putfh(xdr, args->fh, &hdr); | |
2327 | encode_write(xdr, args, &hdr); | |
4f22ccc3 | 2328 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
7ffd1064 FI |
2329 | if (args->bitmask) |
2330 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2331 | encode_nops(&hdr); |
1da177e4 LT |
2332 | } |
2333 | ||
2334 | /* | |
2335 | * a COMMIT request | |
2336 | */ | |
9f06c719 CL |
2337 | static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, |
2338 | struct nfs_writeargs *args) | |
1da177e4 | 2339 | { |
1da177e4 | 2340 | struct compound_hdr hdr = { |
66cc0429 | 2341 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2342 | }; |
1da177e4 | 2343 | |
9f06c719 CL |
2344 | encode_compound_hdr(xdr, req, &hdr); |
2345 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2346 | encode_putfh(xdr, args->fh, &hdr); | |
2347 | encode_commit(xdr, args, &hdr); | |
988b6dce FI |
2348 | if (args->bitmask) |
2349 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2350 | encode_nops(&hdr); |
1da177e4 LT |
2351 | } |
2352 | ||
2353 | /* | |
2354 | * FSINFO request | |
2355 | */ | |
9f06c719 CL |
2356 | static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, |
2357 | struct nfs4_fsinfo_arg *args) | |
1da177e4 | 2358 | { |
1da177e4 | 2359 | struct compound_hdr hdr = { |
66cc0429 | 2360 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2361 | }; |
1da177e4 | 2362 | |
9f06c719 CL |
2363 | encode_compound_hdr(xdr, req, &hdr); |
2364 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2365 | encode_putfh(xdr, args->fh, &hdr); | |
2366 | encode_fsinfo(xdr, args->bitmask, &hdr); | |
d017931c | 2367 | encode_nops(&hdr); |
1da177e4 LT |
2368 | } |
2369 | ||
2370 | /* | |
2371 | * a PATHCONF request | |
2372 | */ | |
9f06c719 CL |
2373 | static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, |
2374 | const struct nfs4_pathconf_arg *args) | |
1da177e4 | 2375 | { |
1da177e4 | 2376 | struct compound_hdr hdr = { |
66cc0429 | 2377 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2378 | }; |
1da177e4 | 2379 | |
9f06c719 CL |
2380 | encode_compound_hdr(xdr, req, &hdr); |
2381 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2382 | encode_putfh(xdr, args->fh, &hdr); | |
2383 | encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
cf8cdbe5 | 2384 | &hdr); |
d017931c | 2385 | encode_nops(&hdr); |
1da177e4 LT |
2386 | } |
2387 | ||
2388 | /* | |
2389 | * a STATFS request | |
2390 | */ | |
9f06c719 CL |
2391 | static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, |
2392 | const struct nfs4_statfs_arg *args) | |
1da177e4 | 2393 | { |
1da177e4 | 2394 | struct compound_hdr hdr = { |
66cc0429 | 2395 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2396 | }; |
1da177e4 | 2397 | |
9f06c719 CL |
2398 | encode_compound_hdr(xdr, req, &hdr); |
2399 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2400 | encode_putfh(xdr, args->fh, &hdr); | |
2401 | encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
cf8cdbe5 | 2402 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); |
d017931c | 2403 | encode_nops(&hdr); |
1da177e4 LT |
2404 | } |
2405 | ||
2406 | /* | |
2407 | * GETATTR_BITMAP request | |
2408 | */ | |
9f06c719 CL |
2409 | static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, |
2410 | struct xdr_stream *xdr, | |
2411 | struct nfs4_server_caps_arg *args) | |
1da177e4 | 2412 | { |
1da177e4 | 2413 | struct compound_hdr hdr = { |
66cc0429 | 2414 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2415 | }; |
1da177e4 | 2416 | |
9f06c719 CL |
2417 | encode_compound_hdr(xdr, req, &hdr); |
2418 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2419 | encode_putfh(xdr, args->fhandle, &hdr); | |
2420 | encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| | |
cf8cdbe5 AA |
2421 | FATTR4_WORD0_LINK_SUPPORT| |
2422 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2423 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 2424 | encode_nops(&hdr); |
1da177e4 LT |
2425 | } |
2426 | ||
2427 | /* | |
2428 | * a RENEW request | |
2429 | */ | |
9f06c719 CL |
2430 | static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, |
2431 | struct nfs_client *clp) | |
1da177e4 | 2432 | { |
1da177e4 | 2433 | struct compound_hdr hdr = { |
d017931c | 2434 | .nops = 0, |
1da177e4 LT |
2435 | }; |
2436 | ||
9f06c719 CL |
2437 | encode_compound_hdr(xdr, req, &hdr); |
2438 | encode_renew(xdr, clp, &hdr); | |
d017931c | 2439 | encode_nops(&hdr); |
1da177e4 LT |
2440 | } |
2441 | ||
2442 | /* | |
2443 | * a SETCLIENTID request | |
2444 | */ | |
9f06c719 CL |
2445 | static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, |
2446 | struct xdr_stream *xdr, | |
2447 | struct nfs4_setclientid *sc) | |
1da177e4 | 2448 | { |
1da177e4 | 2449 | struct compound_hdr hdr = { |
d017931c | 2450 | .nops = 0, |
1da177e4 LT |
2451 | }; |
2452 | ||
9f06c719 CL |
2453 | encode_compound_hdr(xdr, req, &hdr); |
2454 | encode_setclientid(xdr, sc, &hdr); | |
d017931c | 2455 | encode_nops(&hdr); |
1da177e4 LT |
2456 | } |
2457 | ||
2458 | /* | |
2459 | * a SETCLIENTID_CONFIRM request | |
2460 | */ | |
9f06c719 CL |
2461 | static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, |
2462 | struct xdr_stream *xdr, | |
2463 | struct nfs4_setclientid_res *arg) | |
1da177e4 | 2464 | { |
1da177e4 | 2465 | struct compound_hdr hdr = { |
d017931c | 2466 | .nops = 0, |
1da177e4 LT |
2467 | }; |
2468 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 | 2469 | |
9f06c719 CL |
2470 | encode_compound_hdr(xdr, req, &hdr); |
2471 | encode_setclientid_confirm(xdr, arg, &hdr); | |
2472 | encode_putrootfh(xdr, &hdr); | |
2473 | encode_fsinfo(xdr, lease_bitmap, &hdr); | |
d017931c | 2474 | encode_nops(&hdr); |
1da177e4 LT |
2475 | } |
2476 | ||
2477 | /* | |
2478 | * DELEGRETURN request | |
2479 | */ | |
9f06c719 CL |
2480 | static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, |
2481 | struct xdr_stream *xdr, | |
2482 | const struct nfs4_delegreturnargs *args) | |
1da177e4 | 2483 | { |
1da177e4 | 2484 | struct compound_hdr hdr = { |
66cc0429 | 2485 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2486 | }; |
1da177e4 | 2487 | |
9f06c719 CL |
2488 | encode_compound_hdr(xdr, req, &hdr); |
2489 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2490 | encode_putfh(xdr, args->fhandle, &hdr); | |
2491 | encode_delegreturn(xdr, args->stateid, &hdr); | |
2492 | encode_getfattr(xdr, args->bitmask, &hdr); | |
d017931c | 2493 | encode_nops(&hdr); |
1da177e4 LT |
2494 | } |
2495 | ||
683b57b4 TM |
2496 | /* |
2497 | * Encode FS_LOCATIONS request | |
2498 | */ | |
9f06c719 CL |
2499 | static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, |
2500 | struct xdr_stream *xdr, | |
2501 | struct nfs4_fs_locations_arg *args) | |
683b57b4 | 2502 | { |
683b57b4 | 2503 | struct compound_hdr hdr = { |
66cc0429 | 2504 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2505 | }; |
28f56694 | 2506 | uint32_t replen; |
683b57b4 | 2507 | |
9f06c719 CL |
2508 | encode_compound_hdr(xdr, req, &hdr); |
2509 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2510 | encode_putfh(xdr, args->dir_fh, &hdr); | |
2511 | encode_lookup(xdr, args->name, &hdr); | |
28f56694 | 2512 | replen = hdr.replen; /* get the attribute into args->page */ |
9f06c719 | 2513 | encode_fs_locations(xdr, args->bitmask, &hdr); |
cf8cdbe5 | 2514 | |
28f56694 | 2515 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2516 | 0, PAGE_SIZE); |
d017931c | 2517 | encode_nops(&hdr); |
683b57b4 TM |
2518 | } |
2519 | ||
99fe60d0 BH |
2520 | #if defined(CONFIG_NFS_V4_1) |
2521 | /* | |
2522 | * EXCHANGE_ID request | |
2523 | */ | |
9f06c719 CL |
2524 | static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, |
2525 | struct xdr_stream *xdr, | |
2526 | struct nfs41_exchange_id_args *args) | |
99fe60d0 | 2527 | { |
99fe60d0 | 2528 | struct compound_hdr hdr = { |
a4432345 | 2529 | .minorversion = args->client->cl_mvops->minor_version, |
99fe60d0 BH |
2530 | }; |
2531 | ||
9f06c719 CL |
2532 | encode_compound_hdr(xdr, req, &hdr); |
2533 | encode_exchange_id(xdr, args, &hdr); | |
99fe60d0 | 2534 | encode_nops(&hdr); |
99fe60d0 | 2535 | } |
2050f0cc | 2536 | |
fc931582 AA |
2537 | /* |
2538 | * a CREATE_SESSION request | |
2539 | */ | |
9f06c719 CL |
2540 | static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, |
2541 | struct xdr_stream *xdr, | |
2542 | struct nfs41_create_session_args *args) | |
fc931582 | 2543 | { |
fc931582 | 2544 | struct compound_hdr hdr = { |
a4432345 | 2545 | .minorversion = args->client->cl_mvops->minor_version, |
fc931582 AA |
2546 | }; |
2547 | ||
9f06c719 CL |
2548 | encode_compound_hdr(xdr, req, &hdr); |
2549 | encode_create_session(xdr, args, &hdr); | |
fc931582 | 2550 | encode_nops(&hdr); |
fc931582 AA |
2551 | } |
2552 | ||
0f3e66c6 AA |
2553 | /* |
2554 | * a DESTROY_SESSION request | |
2555 | */ | |
9f06c719 CL |
2556 | static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, |
2557 | struct xdr_stream *xdr, | |
2558 | struct nfs4_session *session) | |
0f3e66c6 | 2559 | { |
0f3e66c6 | 2560 | struct compound_hdr hdr = { |
a4432345 | 2561 | .minorversion = session->clp->cl_mvops->minor_version, |
0f3e66c6 AA |
2562 | }; |
2563 | ||
9f06c719 CL |
2564 | encode_compound_hdr(xdr, req, &hdr); |
2565 | encode_destroy_session(xdr, session, &hdr); | |
0f3e66c6 | 2566 | encode_nops(&hdr); |
0f3e66c6 AA |
2567 | } |
2568 | ||
fc01cea9 AA |
2569 | /* |
2570 | * a SEQUENCE request | |
2571 | */ | |
9f06c719 CL |
2572 | static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, |
2573 | struct nfs4_sequence_args *args) | |
fc01cea9 | 2574 | { |
fc01cea9 AA |
2575 | struct compound_hdr hdr = { |
2576 | .minorversion = nfs4_xdr_minorversion(args), | |
2577 | }; | |
2578 | ||
9f06c719 CL |
2579 | encode_compound_hdr(xdr, req, &hdr); |
2580 | encode_sequence(xdr, args, &hdr); | |
fc01cea9 | 2581 | encode_nops(&hdr); |
fc01cea9 AA |
2582 | } |
2583 | ||
2050f0cc AA |
2584 | /* |
2585 | * a GET_LEASE_TIME request | |
2586 | */ | |
9f06c719 CL |
2587 | static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, |
2588 | struct xdr_stream *xdr, | |
2589 | struct nfs4_get_lease_time_args *args) | |
2050f0cc | 2590 | { |
2050f0cc AA |
2591 | struct compound_hdr hdr = { |
2592 | .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), | |
2593 | }; | |
2594 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2595 | ||
9f06c719 CL |
2596 | encode_compound_hdr(xdr, req, &hdr); |
2597 | encode_sequence(xdr, &args->la_seq_args, &hdr); | |
2598 | encode_putrootfh(xdr, &hdr); | |
2599 | encode_fsinfo(xdr, lease_bitmap, &hdr); | |
2050f0cc | 2600 | encode_nops(&hdr); |
2050f0cc | 2601 | } |
18019753 RL |
2602 | |
2603 | /* | |
2604 | * a RECLAIM_COMPLETE request | |
2605 | */ | |
9f06c719 CL |
2606 | static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, |
2607 | struct xdr_stream *xdr, | |
2608 | struct nfs41_reclaim_complete_args *args) | |
18019753 | 2609 | { |
18019753 RL |
2610 | struct compound_hdr hdr = { |
2611 | .minorversion = nfs4_xdr_minorversion(&args->seq_args) | |
2612 | }; | |
2613 | ||
9f06c719 CL |
2614 | encode_compound_hdr(xdr, req, &hdr); |
2615 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2616 | encode_reclaim_complete(xdr, args, &hdr); | |
18019753 | 2617 | encode_nops(&hdr); |
18019753 RL |
2618 | } |
2619 | ||
b1f69b75 AA |
2620 | /* |
2621 | * Encode GETDEVICEINFO request | |
2622 | */ | |
9f06c719 CL |
2623 | static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, |
2624 | struct xdr_stream *xdr, | |
2625 | struct nfs4_getdeviceinfo_args *args) | |
b1f69b75 | 2626 | { |
b1f69b75 AA |
2627 | struct compound_hdr hdr = { |
2628 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2629 | }; | |
2630 | ||
9f06c719 CL |
2631 | encode_compound_hdr(xdr, req, &hdr); |
2632 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2633 | encode_getdeviceinfo(xdr, args, &hdr); | |
b1f69b75 AA |
2634 | |
2635 | /* set up reply kvec. Subtract notification bitmap max size (2) | |
2636 | * so that notification bitmap is put in xdr_buf tail */ | |
2637 | xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, | |
2638 | args->pdev->pages, args->pdev->pgbase, | |
2639 | args->pdev->pglen); | |
2640 | ||
2641 | encode_nops(&hdr); | |
b1f69b75 AA |
2642 | } |
2643 | ||
2644 | /* | |
2645 | * Encode LAYOUTGET request | |
2646 | */ | |
9f06c719 CL |
2647 | static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, |
2648 | struct xdr_stream *xdr, | |
2649 | struct nfs4_layoutget_args *args) | |
b1f69b75 | 2650 | { |
b1f69b75 AA |
2651 | struct compound_hdr hdr = { |
2652 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2653 | }; | |
2654 | ||
9f06c719 CL |
2655 | encode_compound_hdr(xdr, req, &hdr); |
2656 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2657 | encode_putfh(xdr, NFS_FH(args->inode), &hdr); | |
2658 | encode_layoutget(xdr, args, &hdr); | |
b1f69b75 | 2659 | encode_nops(&hdr); |
b1f69b75 | 2660 | } |
863a3c6c AA |
2661 | |
2662 | /* | |
2663 | * Encode LAYOUTCOMMIT request | |
2664 | */ | |
2665 | static int nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, | |
2666 | struct xdr_stream *xdr, | |
2667 | struct nfs4_layoutcommit_args *args) | |
2668 | { | |
2669 | struct compound_hdr hdr = { | |
2670 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), | |
2671 | }; | |
2672 | ||
2673 | encode_compound_hdr(xdr, req, &hdr); | |
2674 | encode_sequence(xdr, &args->seq_args, &hdr); | |
2675 | encode_putfh(xdr, NFS_FH(args->inode), &hdr); | |
2676 | encode_layoutcommit(xdr, args, &hdr); | |
2677 | encode_getfattr(xdr, args->bitmask, &hdr); | |
2678 | encode_nops(&hdr); | |
2679 | return 0; | |
2680 | } | |
99fe60d0 BH |
2681 | #endif /* CONFIG_NFS_V4_1 */ |
2682 | ||
686841b3 BH |
2683 | static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) |
2684 | { | |
2685 | dprintk("nfs: %s: prematurely hit end of receive buffer. " | |
2686 | "Remaining buffer length is %tu words.\n", | |
2687 | func, xdr->end - xdr->p); | |
2688 | } | |
1da177e4 | 2689 | |
683b57b4 | 2690 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2691 | { |
8687b63a | 2692 | __be32 *p; |
1da177e4 | 2693 | |
c0eae66e BH |
2694 | p = xdr_inline_decode(xdr, 4); |
2695 | if (unlikely(!p)) | |
2696 | goto out_overflow; | |
cccddf4f | 2697 | *len = be32_to_cpup(p); |
c0eae66e BH |
2698 | p = xdr_inline_decode(xdr, *len); |
2699 | if (unlikely(!p)) | |
2700 | goto out_overflow; | |
1da177e4 LT |
2701 | *string = (char *)p; |
2702 | return 0; | |
c0eae66e BH |
2703 | out_overflow: |
2704 | print_overflow_msg(__func__, xdr); | |
2705 | return -EIO; | |
1da177e4 LT |
2706 | } |
2707 | ||
2708 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2709 | { | |
8687b63a | 2710 | __be32 *p; |
1da177e4 | 2711 | |
c0eae66e BH |
2712 | p = xdr_inline_decode(xdr, 8); |
2713 | if (unlikely(!p)) | |
2714 | goto out_overflow; | |
6f723f77 | 2715 | hdr->status = be32_to_cpup(p++); |
cccddf4f | 2716 | hdr->taglen = be32_to_cpup(p); |
6c0195a4 | 2717 | |
c0eae66e BH |
2718 | p = xdr_inline_decode(xdr, hdr->taglen + 4); |
2719 | if (unlikely(!p)) | |
2720 | goto out_overflow; | |
1da177e4 LT |
2721 | hdr->tag = (char *)p; |
2722 | p += XDR_QUADLEN(hdr->taglen); | |
cccddf4f | 2723 | hdr->nops = be32_to_cpup(p); |
aadf6152 BH |
2724 | if (unlikely(hdr->nops < 1)) |
2725 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 | 2726 | return 0; |
c0eae66e BH |
2727 | out_overflow: |
2728 | print_overflow_msg(__func__, xdr); | |
2729 | return -EIO; | |
1da177e4 LT |
2730 | } |
2731 | ||
2732 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2733 | { | |
8687b63a | 2734 | __be32 *p; |
1da177e4 LT |
2735 | uint32_t opnum; |
2736 | int32_t nfserr; | |
2737 | ||
c0eae66e BH |
2738 | p = xdr_inline_decode(xdr, 8); |
2739 | if (unlikely(!p)) | |
2740 | goto out_overflow; | |
6f723f77 | 2741 | opnum = be32_to_cpup(p++); |
1da177e4 | 2742 | if (opnum != expected) { |
fe82a183 CL |
2743 | dprintk("nfs: Server returned operation" |
2744 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2745 | opnum, expected); |
2746 | return -EIO; | |
2747 | } | |
cccddf4f | 2748 | nfserr = be32_to_cpup(p); |
1da177e4 | 2749 | if (nfserr != NFS_OK) |
856dff3d | 2750 | return nfs4_stat_to_errno(nfserr); |
1da177e4 | 2751 | return 0; |
c0eae66e BH |
2752 | out_overflow: |
2753 | print_overflow_msg(__func__, xdr); | |
2754 | return -EIO; | |
1da177e4 LT |
2755 | } |
2756 | ||
2757 | /* Dummy routine */ | |
adfa6f98 | 2758 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2759 | { |
8687b63a | 2760 | __be32 *p; |
683b57b4 | 2761 | unsigned int strlen; |
1da177e4 LT |
2762 | char *str; |
2763 | ||
c0eae66e BH |
2764 | p = xdr_inline_decode(xdr, 12); |
2765 | if (likely(p)) | |
2766 | return decode_opaque_inline(xdr, &strlen, &str); | |
2767 | print_overflow_msg(__func__, xdr); | |
2768 | return -EIO; | |
1da177e4 LT |
2769 | } |
2770 | ||
2771 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2772 | { | |
8687b63a AV |
2773 | uint32_t bmlen; |
2774 | __be32 *p; | |
1da177e4 | 2775 | |
c0eae66e BH |
2776 | p = xdr_inline_decode(xdr, 4); |
2777 | if (unlikely(!p)) | |
2778 | goto out_overflow; | |
cccddf4f | 2779 | bmlen = be32_to_cpup(p); |
1da177e4 LT |
2780 | |
2781 | bitmap[0] = bitmap[1] = 0; | |
c0eae66e BH |
2782 | p = xdr_inline_decode(xdr, (bmlen << 2)); |
2783 | if (unlikely(!p)) | |
2784 | goto out_overflow; | |
1da177e4 | 2785 | if (bmlen > 0) { |
6f723f77 | 2786 | bitmap[0] = be32_to_cpup(p++); |
1da177e4 | 2787 | if (bmlen > 1) |
cccddf4f | 2788 | bitmap[1] = be32_to_cpup(p); |
1da177e4 LT |
2789 | } |
2790 | return 0; | |
c0eae66e BH |
2791 | out_overflow: |
2792 | print_overflow_msg(__func__, xdr); | |
2793 | return -EIO; | |
1da177e4 LT |
2794 | } |
2795 | ||
8687b63a | 2796 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2797 | { |
8687b63a | 2798 | __be32 *p; |
1da177e4 | 2799 | |
c0eae66e BH |
2800 | p = xdr_inline_decode(xdr, 4); |
2801 | if (unlikely(!p)) | |
2802 | goto out_overflow; | |
cccddf4f | 2803 | *attrlen = be32_to_cpup(p); |
1da177e4 LT |
2804 | *savep = xdr->p; |
2805 | return 0; | |
c0eae66e BH |
2806 | out_overflow: |
2807 | print_overflow_msg(__func__, xdr); | |
2808 | return -EIO; | |
1da177e4 LT |
2809 | } |
2810 | ||
2811 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2812 | { | |
2813 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
3388bff5 RB |
2814 | int ret; |
2815 | ret = decode_attr_bitmap(xdr, bitmask); | |
2816 | if (unlikely(ret < 0)) | |
2817 | return ret; | |
1da177e4 LT |
2818 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; |
2819 | } else | |
2820 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2821 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2822 | return 0; |
2823 | } | |
2824 | ||
2825 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2826 | { | |
8687b63a | 2827 | __be32 *p; |
409924e4 | 2828 | int ret = 0; |
1da177e4 LT |
2829 | |
2830 | *type = 0; | |
2831 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2832 | return -EIO; | |
2833 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
c0eae66e BH |
2834 | p = xdr_inline_decode(xdr, 4); |
2835 | if (unlikely(!p)) | |
2836 | goto out_overflow; | |
cccddf4f | 2837 | *type = be32_to_cpup(p); |
1da177e4 | 2838 | if (*type < NF4REG || *type > NF4NAMEDATTR) { |
3110ff80 | 2839 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2840 | return -EIO; |
2841 | } | |
2842 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2843 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2844 | } |
bca79478 | 2845 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2846 | return ret; |
c0eae66e BH |
2847 | out_overflow: |
2848 | print_overflow_msg(__func__, xdr); | |
2849 | return -EIO; | |
1da177e4 LT |
2850 | } |
2851 | ||
2852 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2853 | { | |
8687b63a | 2854 | __be32 *p; |
409924e4 | 2855 | int ret = 0; |
1da177e4 LT |
2856 | |
2857 | *change = 0; | |
2858 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2859 | return -EIO; | |
2860 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
c0eae66e BH |
2861 | p = xdr_inline_decode(xdr, 8); |
2862 | if (unlikely(!p)) | |
2863 | goto out_overflow; | |
cccddf4f | 2864 | xdr_decode_hyper(p, change); |
1da177e4 | 2865 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; |
409924e4 | 2866 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2867 | } |
3110ff80 | 2868 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2869 | (unsigned long long)*change); |
409924e4 | 2870 | return ret; |
c0eae66e BH |
2871 | out_overflow: |
2872 | print_overflow_msg(__func__, xdr); | |
2873 | return -EIO; | |
1da177e4 LT |
2874 | } |
2875 | ||
2876 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2877 | { | |
8687b63a | 2878 | __be32 *p; |
409924e4 | 2879 | int ret = 0; |
1da177e4 LT |
2880 | |
2881 | *size = 0; | |
2882 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2883 | return -EIO; | |
2884 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
c0eae66e BH |
2885 | p = xdr_inline_decode(xdr, 8); |
2886 | if (unlikely(!p)) | |
2887 | goto out_overflow; | |
cccddf4f | 2888 | xdr_decode_hyper(p, size); |
1da177e4 | 2889 | bitmap[0] &= ~FATTR4_WORD0_SIZE; |
409924e4 | 2890 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2891 | } |
3110ff80 | 2892 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2893 | return ret; |
c0eae66e BH |
2894 | out_overflow: |
2895 | print_overflow_msg(__func__, xdr); | |
2896 | return -EIO; | |
1da177e4 LT |
2897 | } |
2898 | ||
2899 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2900 | { | |
8687b63a | 2901 | __be32 *p; |
1da177e4 LT |
2902 | |
2903 | *res = 0; | |
2904 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2905 | return -EIO; | |
2906 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
c0eae66e BH |
2907 | p = xdr_inline_decode(xdr, 4); |
2908 | if (unlikely(!p)) | |
2909 | goto out_overflow; | |
cccddf4f | 2910 | *res = be32_to_cpup(p); |
1da177e4 LT |
2911 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; |
2912 | } | |
3110ff80 | 2913 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2914 | return 0; |
c0eae66e BH |
2915 | out_overflow: |
2916 | print_overflow_msg(__func__, xdr); | |
2917 | return -EIO; | |
1da177e4 LT |
2918 | } |
2919 | ||
2920 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2921 | { | |
8687b63a | 2922 | __be32 *p; |
1da177e4 LT |
2923 | |
2924 | *res = 0; | |
2925 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2926 | return -EIO; | |
2927 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
c0eae66e BH |
2928 | p = xdr_inline_decode(xdr, 4); |
2929 | if (unlikely(!p)) | |
2930 | goto out_overflow; | |
cccddf4f | 2931 | *res = be32_to_cpup(p); |
1da177e4 LT |
2932 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; |
2933 | } | |
3110ff80 | 2934 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 | 2935 | return 0; |
c0eae66e BH |
2936 | out_overflow: |
2937 | print_overflow_msg(__func__, xdr); | |
2938 | return -EIO; | |
1da177e4 LT |
2939 | } |
2940 | ||
8b4bdcf8 | 2941 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2942 | { |
8687b63a | 2943 | __be32 *p; |
409924e4 | 2944 | int ret = 0; |
1da177e4 LT |
2945 | |
2946 | fsid->major = 0; | |
2947 | fsid->minor = 0; | |
2948 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2949 | return -EIO; | |
2950 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
c0eae66e BH |
2951 | p = xdr_inline_decode(xdr, 16); |
2952 | if (unlikely(!p)) | |
2953 | goto out_overflow; | |
3ceb4dbb | 2954 | p = xdr_decode_hyper(p, &fsid->major); |
cccddf4f | 2955 | xdr_decode_hyper(p, &fsid->minor); |
1da177e4 | 2956 | bitmap[0] &= ~FATTR4_WORD0_FSID; |
409924e4 | 2957 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2958 | } |
3110ff80 | 2959 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2960 | (unsigned long long)fsid->major, |
2961 | (unsigned long long)fsid->minor); | |
409924e4 | 2962 | return ret; |
c0eae66e BH |
2963 | out_overflow: |
2964 | print_overflow_msg(__func__, xdr); | |
2965 | return -EIO; | |
1da177e4 LT |
2966 | } |
2967 | ||
2968 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2969 | { | |
8687b63a | 2970 | __be32 *p; |
1da177e4 LT |
2971 | |
2972 | *res = 60; | |
2973 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2974 | return -EIO; | |
2975 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
c0eae66e BH |
2976 | p = xdr_inline_decode(xdr, 4); |
2977 | if (unlikely(!p)) | |
2978 | goto out_overflow; | |
cccddf4f | 2979 | *res = be32_to_cpup(p); |
1da177e4 LT |
2980 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; |
2981 | } | |
3110ff80 | 2982 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 2983 | return 0; |
c0eae66e BH |
2984 | out_overflow: |
2985 | print_overflow_msg(__func__, xdr); | |
2986 | return -EIO; | |
1da177e4 LT |
2987 | } |
2988 | ||
ae42c70a BS |
2989 | static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) |
2990 | { | |
2991 | __be32 *p; | |
2992 | ||
2993 | if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) | |
2994 | return -EIO; | |
2995 | if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { | |
2996 | p = xdr_inline_decode(xdr, 4); | |
2997 | if (unlikely(!p)) | |
2998 | goto out_overflow; | |
2999 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
3000 | } | |
3001 | return 0; | |
3002 | out_overflow: | |
3003 | print_overflow_msg(__func__, xdr); | |
3004 | return -EIO; | |
3005 | } | |
3006 | ||
3007 | static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) | |
3008 | { | |
3009 | __be32 *p; | |
3010 | int len; | |
3011 | ||
7ad07353 TM |
3012 | if (fh != NULL) |
3013 | memset(fh, 0, sizeof(*fh)); | |
ae42c70a BS |
3014 | |
3015 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) | |
3016 | return -EIO; | |
3017 | if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { | |
3018 | p = xdr_inline_decode(xdr, 4); | |
3019 | if (unlikely(!p)) | |
3020 | goto out_overflow; | |
3021 | len = be32_to_cpup(p); | |
3022 | if (len > NFS4_FHSIZE) | |
3023 | return -EIO; | |
ae42c70a BS |
3024 | p = xdr_inline_decode(xdr, len); |
3025 | if (unlikely(!p)) | |
3026 | goto out_overflow; | |
7ad07353 TM |
3027 | if (fh != NULL) { |
3028 | memcpy(fh->data, p, len); | |
3029 | fh->size = len; | |
3030 | } | |
ae42c70a BS |
3031 | bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; |
3032 | } | |
3033 | return 0; | |
3034 | out_overflow: | |
3035 | print_overflow_msg(__func__, xdr); | |
3036 | return -EIO; | |
3037 | } | |
3038 | ||
1da177e4 LT |
3039 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) |
3040 | { | |
8687b63a | 3041 | __be32 *p; |
1da177e4 LT |
3042 | |
3043 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
3044 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
3045 | return -EIO; | |
3046 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
c0eae66e BH |
3047 | p = xdr_inline_decode(xdr, 4); |
3048 | if (unlikely(!p)) | |
3049 | goto out_overflow; | |
cccddf4f | 3050 | *res = be32_to_cpup(p); |
1da177e4 LT |
3051 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; |
3052 | } | |
3110ff80 | 3053 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 | 3054 | return 0; |
c0eae66e BH |
3055 | out_overflow: |
3056 | print_overflow_msg(__func__, xdr); | |
3057 | return -EIO; | |
1da177e4 LT |
3058 | } |
3059 | ||
3060 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
3061 | { | |
8687b63a | 3062 | __be32 *p; |
409924e4 | 3063 | int ret = 0; |
1da177e4 LT |
3064 | |
3065 | *fileid = 0; | |
3066 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
3067 | return -EIO; | |
3068 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
c0eae66e BH |
3069 | p = xdr_inline_decode(xdr, 8); |
3070 | if (unlikely(!p)) | |
3071 | goto out_overflow; | |
cccddf4f | 3072 | xdr_decode_hyper(p, fileid); |
1da177e4 | 3073 | bitmap[0] &= ~FATTR4_WORD0_FILEID; |
409924e4 | 3074 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 3075 | } |
3110ff80 | 3076 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 3077 | return ret; |
c0eae66e BH |
3078 | out_overflow: |
3079 | print_overflow_msg(__func__, xdr); | |
3080 | return -EIO; | |
1da177e4 LT |
3081 | } |
3082 | ||
99baf625 MN |
3083 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
3084 | { | |
8687b63a | 3085 | __be32 *p; |
409924e4 | 3086 | int ret = 0; |
99baf625 MN |
3087 | |
3088 | *fileid = 0; | |
3089 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
3090 | return -EIO; | |
3091 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
c0eae66e BH |
3092 | p = xdr_inline_decode(xdr, 8); |
3093 | if (unlikely(!p)) | |
3094 | goto out_overflow; | |
cccddf4f | 3095 | xdr_decode_hyper(p, fileid); |
99baf625 | 3096 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; |
409924e4 | 3097 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 3098 | } |
3110ff80 | 3099 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 3100 | return ret; |
c0eae66e BH |
3101 | out_overflow: |
3102 | print_overflow_msg(__func__, xdr); | |
3103 | return -EIO; | |
99baf625 MN |
3104 | } |
3105 | ||
1da177e4 LT |
3106 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3107 | { | |
8687b63a | 3108 | __be32 *p; |
1da177e4 LT |
3109 | int status = 0; |
3110 | ||
3111 | *res = 0; | |
3112 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
3113 | return -EIO; | |
3114 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
c0eae66e BH |
3115 | p = xdr_inline_decode(xdr, 8); |
3116 | if (unlikely(!p)) | |
3117 | goto out_overflow; | |
cccddf4f | 3118 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3119 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; |
3120 | } | |
3110ff80 | 3121 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3122 | return status; |
c0eae66e BH |
3123 | out_overflow: |
3124 | print_overflow_msg(__func__, xdr); | |
3125 | return -EIO; | |
1da177e4 LT |
3126 | } |
3127 | ||
3128 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3129 | { | |
8687b63a | 3130 | __be32 *p; |
1da177e4 LT |
3131 | int status = 0; |
3132 | ||
3133 | *res = 0; | |
3134 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
3135 | return -EIO; | |
3136 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
c0eae66e BH |
3137 | p = xdr_inline_decode(xdr, 8); |
3138 | if (unlikely(!p)) | |
3139 | goto out_overflow; | |
cccddf4f | 3140 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3141 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; |
3142 | } | |
3110ff80 | 3143 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3144 | return status; |
c0eae66e BH |
3145 | out_overflow: |
3146 | print_overflow_msg(__func__, xdr); | |
3147 | return -EIO; | |
1da177e4 LT |
3148 | } |
3149 | ||
3150 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3151 | { | |
8687b63a | 3152 | __be32 *p; |
1da177e4 LT |
3153 | int status = 0; |
3154 | ||
3155 | *res = 0; | |
3156 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
3157 | return -EIO; | |
3158 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
c0eae66e BH |
3159 | p = xdr_inline_decode(xdr, 8); |
3160 | if (unlikely(!p)) | |
3161 | goto out_overflow; | |
cccddf4f | 3162 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3163 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; |
3164 | } | |
3110ff80 | 3165 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3166 | return status; |
c0eae66e BH |
3167 | out_overflow: |
3168 | print_overflow_msg(__func__, xdr); | |
3169 | return -EIO; | |
1da177e4 LT |
3170 | } |
3171 | ||
7aaa0b3b MN |
3172 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
3173 | { | |
464ad6b1 | 3174 | u32 n; |
8687b63a | 3175 | __be32 *p; |
7aaa0b3b MN |
3176 | int status = 0; |
3177 | ||
c0eae66e BH |
3178 | p = xdr_inline_decode(xdr, 4); |
3179 | if (unlikely(!p)) | |
3180 | goto out_overflow; | |
cccddf4f | 3181 | n = be32_to_cpup(p); |
33a43f28 AA |
3182 | if (n == 0) |
3183 | goto root_path; | |
7aaa0b3b MN |
3184 | dprintk("path "); |
3185 | path->ncomponents = 0; | |
3186 | while (path->ncomponents < n) { | |
3187 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
3188 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
3189 | if (unlikely(status != 0)) | |
3190 | goto out_eio; | |
3191 | if (path->ncomponents != n) | |
3192 | dprintk("/"); | |
3193 | dprintk("%s", component->data); | |
3194 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
3195 | path->ncomponents++; | |
3196 | else { | |
3197 | dprintk("cannot parse %d components in path\n", n); | |
3198 | goto out_eio; | |
3199 | } | |
3200 | } | |
3201 | out: | |
3202 | dprintk("\n"); | |
3203 | return status; | |
33a43f28 AA |
3204 | root_path: |
3205 | /* a root pathname is sent as a zero component4 */ | |
3206 | path->ncomponents = 1; | |
3207 | path->components[0].len=0; | |
3208 | path->components[0].data=NULL; | |
3209 | dprintk("path /\n"); | |
3210 | goto out; | |
7aaa0b3b MN |
3211 | out_eio: |
3212 | dprintk(" status %d", status); | |
3213 | status = -EIO; | |
3214 | goto out; | |
c0eae66e BH |
3215 | out_overflow: |
3216 | print_overflow_msg(__func__, xdr); | |
3217 | return -EIO; | |
7aaa0b3b MN |
3218 | } |
3219 | ||
3220 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
3221 | { |
3222 | int n; | |
8687b63a | 3223 | __be32 *p; |
683b57b4 TM |
3224 | int status = -EIO; |
3225 | ||
3226 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
3227 | goto out; | |
3228 | status = 0; | |
3229 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
3230 | goto out; | |
3110ff80 | 3231 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 3232 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
3233 | if (unlikely(status != 0)) |
3234 | goto out; | |
c0eae66e BH |
3235 | p = xdr_inline_decode(xdr, 4); |
3236 | if (unlikely(!p)) | |
3237 | goto out_overflow; | |
cccddf4f | 3238 | n = be32_to_cpup(p); |
683b57b4 TM |
3239 | if (n <= 0) |
3240 | goto out_eio; | |
3241 | res->nlocations = 0; | |
3242 | while (res->nlocations < n) { | |
464ad6b1 | 3243 | u32 m; |
7aaa0b3b | 3244 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 3245 | |
c0eae66e BH |
3246 | p = xdr_inline_decode(xdr, 4); |
3247 | if (unlikely(!p)) | |
3248 | goto out_overflow; | |
cccddf4f | 3249 | m = be32_to_cpup(p); |
7aaa0b3b MN |
3250 | |
3251 | loc->nservers = 0; | |
3110ff80 | 3252 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
3253 | while (loc->nservers < m) { |
3254 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
3255 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
3256 | if (unlikely(status != 0)) | |
3257 | goto out_eio; | |
3258 | dprintk("%s ", server->data); | |
3259 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
3260 | loc->nservers++; | |
3261 | else { | |
464ad6b1 CL |
3262 | unsigned int i; |
3263 | dprintk("%s: using first %u of %u servers " | |
3264 | "returned for location %u\n", | |
3110ff80 | 3265 | __func__, |
464ad6b1 CL |
3266 | NFS4_FS_LOCATION_MAXSERVERS, |
3267 | m, res->nlocations); | |
7aaa0b3b | 3268 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 3269 | unsigned int len; |
7aaa0b3b MN |
3270 | char *data; |
3271 | status = decode_opaque_inline(xdr, &len, &data); | |
3272 | if (unlikely(status != 0)) | |
3273 | goto out_eio; | |
3274 | } | |
3275 | } | |
3276 | } | |
3277 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
3278 | if (unlikely(status != 0)) |
3279 | goto out_eio; | |
7aaa0b3b | 3280 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
3281 | res->nlocations++; |
3282 | } | |
409924e4 TM |
3283 | if (res->nlocations != 0) |
3284 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 3285 | out: |
3110ff80 | 3286 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 | 3287 | return status; |
c0eae66e BH |
3288 | out_overflow: |
3289 | print_overflow_msg(__func__, xdr); | |
683b57b4 TM |
3290 | out_eio: |
3291 | status = -EIO; | |
3292 | goto out; | |
3293 | } | |
3294 | ||
1da177e4 LT |
3295 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
3296 | { | |
8687b63a | 3297 | __be32 *p; |
1da177e4 LT |
3298 | int status = 0; |
3299 | ||
3300 | *res = 0; | |
3301 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
3302 | return -EIO; | |
3303 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
c0eae66e BH |
3304 | p = xdr_inline_decode(xdr, 8); |
3305 | if (unlikely(!p)) | |
3306 | goto out_overflow; | |
cccddf4f | 3307 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3308 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; |
3309 | } | |
3110ff80 | 3310 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3311 | return status; |
c0eae66e BH |
3312 | out_overflow: |
3313 | print_overflow_msg(__func__, xdr); | |
3314 | return -EIO; | |
1da177e4 LT |
3315 | } |
3316 | ||
3317 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
3318 | { | |
8687b63a | 3319 | __be32 *p; |
1da177e4 LT |
3320 | int status = 0; |
3321 | ||
3322 | *maxlink = 1; | |
3323 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
3324 | return -EIO; | |
3325 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
c0eae66e BH |
3326 | p = xdr_inline_decode(xdr, 4); |
3327 | if (unlikely(!p)) | |
3328 | goto out_overflow; | |
cccddf4f | 3329 | *maxlink = be32_to_cpup(p); |
1da177e4 LT |
3330 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; |
3331 | } | |
3110ff80 | 3332 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 | 3333 | return status; |
c0eae66e BH |
3334 | out_overflow: |
3335 | print_overflow_msg(__func__, xdr); | |
3336 | return -EIO; | |
1da177e4 LT |
3337 | } |
3338 | ||
3339 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
3340 | { | |
8687b63a | 3341 | __be32 *p; |
1da177e4 LT |
3342 | int status = 0; |
3343 | ||
3344 | *maxname = 1024; | |
3345 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
3346 | return -EIO; | |
3347 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
c0eae66e BH |
3348 | p = xdr_inline_decode(xdr, 4); |
3349 | if (unlikely(!p)) | |
3350 | goto out_overflow; | |
cccddf4f | 3351 | *maxname = be32_to_cpup(p); |
1da177e4 LT |
3352 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; |
3353 | } | |
3110ff80 | 3354 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 | 3355 | return status; |
c0eae66e BH |
3356 | out_overflow: |
3357 | print_overflow_msg(__func__, xdr); | |
3358 | return -EIO; | |
1da177e4 LT |
3359 | } |
3360 | ||
3361 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3362 | { | |
8687b63a | 3363 | __be32 *p; |
1da177e4 LT |
3364 | int status = 0; |
3365 | ||
3366 | *res = 1024; | |
3367 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
3368 | return -EIO; | |
3369 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
3370 | uint64_t maxread; | |
c0eae66e BH |
3371 | p = xdr_inline_decode(xdr, 8); |
3372 | if (unlikely(!p)) | |
3373 | goto out_overflow; | |
cccddf4f | 3374 | xdr_decode_hyper(p, &maxread); |
1da177e4 LT |
3375 | if (maxread > 0x7FFFFFFF) |
3376 | maxread = 0x7FFFFFFF; | |
3377 | *res = (uint32_t)maxread; | |
3378 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
3379 | } | |
3110ff80 | 3380 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3381 | return status; |
c0eae66e BH |
3382 | out_overflow: |
3383 | print_overflow_msg(__func__, xdr); | |
3384 | return -EIO; | |
1da177e4 LT |
3385 | } |
3386 | ||
3387 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
3388 | { | |
8687b63a | 3389 | __be32 *p; |
1da177e4 LT |
3390 | int status = 0; |
3391 | ||
3392 | *res = 1024; | |
3393 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
3394 | return -EIO; | |
3395 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
3396 | uint64_t maxwrite; | |
c0eae66e BH |
3397 | p = xdr_inline_decode(xdr, 8); |
3398 | if (unlikely(!p)) | |
3399 | goto out_overflow; | |
cccddf4f | 3400 | xdr_decode_hyper(p, &maxwrite); |
1da177e4 LT |
3401 | if (maxwrite > 0x7FFFFFFF) |
3402 | maxwrite = 0x7FFFFFFF; | |
3403 | *res = (uint32_t)maxwrite; | |
3404 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
3405 | } | |
3110ff80 | 3406 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 | 3407 | return status; |
c0eae66e BH |
3408 | out_overflow: |
3409 | print_overflow_msg(__func__, xdr); | |
3410 | return -EIO; | |
1da177e4 LT |
3411 | } |
3412 | ||
bca79478 | 3413 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 3414 | { |
bca79478 | 3415 | uint32_t tmp; |
8687b63a | 3416 | __be32 *p; |
409924e4 | 3417 | int ret = 0; |
1da177e4 LT |
3418 | |
3419 | *mode = 0; | |
3420 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
3421 | return -EIO; | |
3422 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
c0eae66e BH |
3423 | p = xdr_inline_decode(xdr, 4); |
3424 | if (unlikely(!p)) | |
3425 | goto out_overflow; | |
cccddf4f | 3426 | tmp = be32_to_cpup(p); |
bca79478 | 3427 | *mode = tmp & ~S_IFMT; |
1da177e4 | 3428 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 3429 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 3430 | } |
3110ff80 | 3431 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 3432 | return ret; |
c0eae66e BH |
3433 | out_overflow: |
3434 | print_overflow_msg(__func__, xdr); | |
3435 | return -EIO; | |
1da177e4 LT |
3436 | } |
3437 | ||
3438 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
3439 | { | |
8687b63a | 3440 | __be32 *p; |
409924e4 | 3441 | int ret = 0; |
1da177e4 LT |
3442 | |
3443 | *nlink = 1; | |
3444 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
3445 | return -EIO; | |
3446 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
c0eae66e BH |
3447 | p = xdr_inline_decode(xdr, 4); |
3448 | if (unlikely(!p)) | |
3449 | goto out_overflow; | |
cccddf4f | 3450 | *nlink = be32_to_cpup(p); |
1da177e4 | 3451 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; |
409924e4 | 3452 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 3453 | } |
3110ff80 | 3454 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 3455 | return ret; |
c0eae66e BH |
3456 | out_overflow: |
3457 | print_overflow_msg(__func__, xdr); | |
3458 | return -EIO; | |
1da177e4 LT |
3459 | } |
3460 | ||
80e52ace | 3461 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, |
e4fd72a1 | 3462 | const struct nfs_server *server, uint32_t *uid, int may_sleep) |
1da177e4 | 3463 | { |
8687b63a AV |
3464 | uint32_t len; |
3465 | __be32 *p; | |
409924e4 | 3466 | int ret = 0; |
1da177e4 LT |
3467 | |
3468 | *uid = -2; | |
3469 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
3470 | return -EIO; | |
3471 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
c0eae66e BH |
3472 | p = xdr_inline_decode(xdr, 4); |
3473 | if (unlikely(!p)) | |
3474 | goto out_overflow; | |
cccddf4f | 3475 | len = be32_to_cpup(p); |
c0eae66e BH |
3476 | p = xdr_inline_decode(xdr, len); |
3477 | if (unlikely(!p)) | |
3478 | goto out_overflow; | |
80e52ace TM |
3479 | if (!may_sleep) { |
3480 | /* do nothing */ | |
3481 | } else if (len < XDR_MAX_NETOBJ) { | |
e4fd72a1 | 3482 | if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) |
409924e4 TM |
3483 | ret = NFS_ATTR_FATTR_OWNER; |
3484 | else | |
1da177e4 | 3485 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 3486 | __func__); |
1da177e4 | 3487 | } else |
fe82a183 | 3488 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3489 | __func__, len); |
1da177e4 LT |
3490 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
3491 | } | |
3110ff80 | 3492 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 3493 | return ret; |
c0eae66e BH |
3494 | out_overflow: |
3495 | print_overflow_msg(__func__, xdr); | |
3496 | return -EIO; | |
1da177e4 LT |
3497 | } |
3498 | ||
80e52ace | 3499 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, |
e4fd72a1 | 3500 | const struct nfs_server *server, uint32_t *gid, int may_sleep) |
1da177e4 | 3501 | { |
8687b63a AV |
3502 | uint32_t len; |
3503 | __be32 *p; | |
409924e4 | 3504 | int ret = 0; |
1da177e4 LT |
3505 | |
3506 | *gid = -2; | |
3507 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
3508 | return -EIO; | |
3509 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
c0eae66e BH |
3510 | p = xdr_inline_decode(xdr, 4); |
3511 | if (unlikely(!p)) | |
3512 | goto out_overflow; | |
cccddf4f | 3513 | len = be32_to_cpup(p); |
c0eae66e BH |
3514 | p = xdr_inline_decode(xdr, len); |
3515 | if (unlikely(!p)) | |
3516 | goto out_overflow; | |
80e52ace TM |
3517 | if (!may_sleep) { |
3518 | /* do nothing */ | |
3519 | } else if (len < XDR_MAX_NETOBJ) { | |
e4fd72a1 | 3520 | if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) |
409924e4 TM |
3521 | ret = NFS_ATTR_FATTR_GROUP; |
3522 | else | |
1da177e4 | 3523 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 3524 | __func__); |
1da177e4 | 3525 | } else |
fe82a183 | 3526 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 3527 | __func__, len); |
1da177e4 LT |
3528 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
3529 | } | |
3110ff80 | 3530 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 3531 | return ret; |
c0eae66e BH |
3532 | out_overflow: |
3533 | print_overflow_msg(__func__, xdr); | |
3534 | return -EIO; | |
1da177e4 LT |
3535 | } |
3536 | ||
3537 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
3538 | { | |
8687b63a AV |
3539 | uint32_t major = 0, minor = 0; |
3540 | __be32 *p; | |
409924e4 | 3541 | int ret = 0; |
1da177e4 LT |
3542 | |
3543 | *rdev = MKDEV(0,0); | |
3544 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
3545 | return -EIO; | |
3546 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
3547 | dev_t tmp; | |
3548 | ||
c0eae66e BH |
3549 | p = xdr_inline_decode(xdr, 8); |
3550 | if (unlikely(!p)) | |
3551 | goto out_overflow; | |
6f723f77 | 3552 | major = be32_to_cpup(p++); |
cccddf4f | 3553 | minor = be32_to_cpup(p); |
1da177e4 LT |
3554 | tmp = MKDEV(major, minor); |
3555 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
3556 | *rdev = tmp; | |
3557 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 3558 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 3559 | } |
3110ff80 | 3560 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 3561 | return ret; |
c0eae66e BH |
3562 | out_overflow: |
3563 | print_overflow_msg(__func__, xdr); | |
3564 | return -EIO; | |
1da177e4 LT |
3565 | } |
3566 | ||
3567 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3568 | { | |
8687b63a | 3569 | __be32 *p; |
1da177e4 LT |
3570 | int status = 0; |
3571 | ||
3572 | *res = 0; | |
3573 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
3574 | return -EIO; | |
3575 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
c0eae66e BH |
3576 | p = xdr_inline_decode(xdr, 8); |
3577 | if (unlikely(!p)) | |
3578 | goto out_overflow; | |
cccddf4f | 3579 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3580 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; |
3581 | } | |
3110ff80 | 3582 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3583 | return status; |
c0eae66e BH |
3584 | out_overflow: |
3585 | print_overflow_msg(__func__, xdr); | |
3586 | return -EIO; | |
1da177e4 LT |
3587 | } |
3588 | ||
3589 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3590 | { | |
8687b63a | 3591 | __be32 *p; |
1da177e4 LT |
3592 | int status = 0; |
3593 | ||
3594 | *res = 0; | |
3595 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
3596 | return -EIO; | |
3597 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
c0eae66e BH |
3598 | p = xdr_inline_decode(xdr, 8); |
3599 | if (unlikely(!p)) | |
3600 | goto out_overflow; | |
cccddf4f | 3601 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3602 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; |
3603 | } | |
3110ff80 | 3604 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3605 | return status; |
c0eae66e BH |
3606 | out_overflow: |
3607 | print_overflow_msg(__func__, xdr); | |
3608 | return -EIO; | |
1da177e4 LT |
3609 | } |
3610 | ||
3611 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
3612 | { | |
8687b63a | 3613 | __be32 *p; |
1da177e4 LT |
3614 | int status = 0; |
3615 | ||
3616 | *res = 0; | |
3617 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
3618 | return -EIO; | |
3619 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
c0eae66e BH |
3620 | p = xdr_inline_decode(xdr, 8); |
3621 | if (unlikely(!p)) | |
3622 | goto out_overflow; | |
cccddf4f | 3623 | xdr_decode_hyper(p, res); |
1da177e4 LT |
3624 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; |
3625 | } | |
3110ff80 | 3626 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 | 3627 | return status; |
c0eae66e BH |
3628 | out_overflow: |
3629 | print_overflow_msg(__func__, xdr); | |
3630 | return -EIO; | |
1da177e4 LT |
3631 | } |
3632 | ||
3633 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
3634 | { | |
8687b63a | 3635 | __be32 *p; |
409924e4 | 3636 | int ret = 0; |
1da177e4 LT |
3637 | |
3638 | *used = 0; | |
3639 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
3640 | return -EIO; | |
3641 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
c0eae66e BH |
3642 | p = xdr_inline_decode(xdr, 8); |
3643 | if (unlikely(!p)) | |
3644 | goto out_overflow; | |
cccddf4f | 3645 | xdr_decode_hyper(p, used); |
1da177e4 | 3646 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; |
409924e4 | 3647 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 3648 | } |
3110ff80 | 3649 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 3650 | (unsigned long long)*used); |
409924e4 | 3651 | return ret; |
c0eae66e BH |
3652 | out_overflow: |
3653 | print_overflow_msg(__func__, xdr); | |
3654 | return -EIO; | |
1da177e4 LT |
3655 | } |
3656 | ||
3657 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
3658 | { | |
8687b63a | 3659 | __be32 *p; |
1da177e4 LT |
3660 | uint64_t sec; |
3661 | uint32_t nsec; | |
3662 | ||
c0eae66e BH |
3663 | p = xdr_inline_decode(xdr, 12); |
3664 | if (unlikely(!p)) | |
3665 | goto out_overflow; | |
3ceb4dbb | 3666 | p = xdr_decode_hyper(p, &sec); |
cccddf4f | 3667 | nsec = be32_to_cpup(p); |
1da177e4 LT |
3668 | time->tv_sec = (time_t)sec; |
3669 | time->tv_nsec = (long)nsec; | |
3670 | return 0; | |
c0eae66e BH |
3671 | out_overflow: |
3672 | print_overflow_msg(__func__, xdr); | |
3673 | return -EIO; | |
1da177e4 LT |
3674 | } |
3675 | ||
3676 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3677 | { | |
3678 | int status = 0; | |
3679 | ||
3680 | time->tv_sec = 0; | |
3681 | time->tv_nsec = 0; | |
3682 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
3683 | return -EIO; | |
3684 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
3685 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3686 | if (status == 0) |
3687 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
3688 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
3689 | } | |
3110ff80 | 3690 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3691 | return status; |
3692 | } | |
3693 | ||
3694 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3695 | { | |
3696 | int status = 0; | |
3697 | ||
3698 | time->tv_sec = 0; | |
3699 | time->tv_nsec = 0; | |
3700 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3701 | return -EIO; | |
3702 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3703 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3704 | if (status == 0) |
3705 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
3706 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
3707 | } | |
3110ff80 | 3708 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3709 | return status; |
3710 | } | |
3711 | ||
55b6e774 RL |
3712 | static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, |
3713 | struct timespec *time) | |
3714 | { | |
3715 | int status = 0; | |
3716 | ||
3717 | time->tv_sec = 0; | |
3718 | time->tv_nsec = 0; | |
3719 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) | |
3720 | return -EIO; | |
3721 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { | |
3722 | status = decode_attr_time(xdr, time); | |
3723 | bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; | |
3724 | } | |
3725 | dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, | |
3726 | (long)time->tv_nsec); | |
3727 | return status; | |
3728 | } | |
3729 | ||
1da177e4 LT |
3730 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) |
3731 | { | |
3732 | int status = 0; | |
3733 | ||
3734 | time->tv_sec = 0; | |
3735 | time->tv_nsec = 0; | |
3736 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3737 | return -EIO; | |
3738 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3739 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
3740 | if (status == 0) |
3741 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
3742 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
3743 | } | |
3110ff80 | 3744 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3745 | return status; |
3746 | } | |
3747 | ||
8687b63a | 3748 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3749 | { |
3750 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3751 | unsigned int nwords = xdr->p - savep; | |
3752 | ||
3753 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3754 | dprintk("%s: server returned incorrect attribute length: " |
3755 | "%u %c %u\n", | |
3110ff80 | 3756 | __func__, |
1da177e4 LT |
3757 | attrwords << 2, |
3758 | (attrwords < nwords) ? '<' : '>', | |
3759 | nwords << 2); | |
3760 | return -EIO; | |
3761 | } | |
3762 | return 0; | |
3763 | } | |
3764 | ||
3765 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3766 | { | |
8687b63a | 3767 | __be32 *p; |
1da177e4 | 3768 | |
c0eae66e BH |
3769 | p = xdr_inline_decode(xdr, 20); |
3770 | if (unlikely(!p)) | |
3771 | goto out_overflow; | |
6f723f77 | 3772 | cinfo->atomic = be32_to_cpup(p++); |
3ceb4dbb | 3773 | p = xdr_decode_hyper(p, &cinfo->before); |
cccddf4f | 3774 | xdr_decode_hyper(p, &cinfo->after); |
1da177e4 | 3775 | return 0; |
c0eae66e BH |
3776 | out_overflow: |
3777 | print_overflow_msg(__func__, xdr); | |
3778 | return -EIO; | |
1da177e4 LT |
3779 | } |
3780 | ||
3781 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3782 | { | |
8687b63a | 3783 | __be32 *p; |
1da177e4 LT |
3784 | uint32_t supp, acc; |
3785 | int status; | |
3786 | ||
3787 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3788 | if (status) | |
3789 | return status; | |
c0eae66e BH |
3790 | p = xdr_inline_decode(xdr, 8); |
3791 | if (unlikely(!p)) | |
3792 | goto out_overflow; | |
6f723f77 | 3793 | supp = be32_to_cpup(p++); |
cccddf4f | 3794 | acc = be32_to_cpup(p); |
1da177e4 LT |
3795 | access->supported = supp; |
3796 | access->access = acc; | |
3797 | return 0; | |
c0eae66e BH |
3798 | out_overflow: |
3799 | print_overflow_msg(__func__, xdr); | |
3800 | return -EIO; | |
1da177e4 LT |
3801 | } |
3802 | ||
07d30434 | 3803 | static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) |
1da177e4 | 3804 | { |
8687b63a | 3805 | __be32 *p; |
07d30434 BH |
3806 | |
3807 | p = xdr_inline_decode(xdr, len); | |
3808 | if (likely(p)) { | |
3809 | memcpy(buf, p, len); | |
3810 | return 0; | |
3811 | } | |
3812 | print_overflow_msg(__func__, xdr); | |
3813 | return -EIO; | |
3814 | } | |
3815 | ||
3816 | static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) | |
3817 | { | |
3818 | return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); | |
3819 | } | |
3820 | ||
3821 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3822 | { | |
1da177e4 LT |
3823 | int status; |
3824 | ||
3825 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3826 | if (status != -EIO) |
3827 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
3828 | if (!status) |
3829 | status = decode_stateid(xdr, &res->stateid); | |
3830 | return status; | |
1da177e4 LT |
3831 | } |
3832 | ||
db942bbd BH |
3833 | static int decode_verifier(struct xdr_stream *xdr, void *verifier) |
3834 | { | |
3835 | return decode_opaque_fixed(xdr, verifier, 8); | |
1da177e4 LT |
3836 | } |
3837 | ||
3838 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3839 | { | |
1da177e4 LT |
3840 | int status; |
3841 | ||
3842 | status = decode_op_hdr(xdr, OP_COMMIT); | |
db942bbd BH |
3843 | if (!status) |
3844 | status = decode_verifier(xdr, res->verf->verifier); | |
3845 | return status; | |
1da177e4 LT |
3846 | } |
3847 | ||
3848 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3849 | { | |
8687b63a | 3850 | __be32 *p; |
1da177e4 LT |
3851 | uint32_t bmlen; |
3852 | int status; | |
3853 | ||
3854 | status = decode_op_hdr(xdr, OP_CREATE); | |
3855 | if (status) | |
3856 | return status; | |
3857 | if ((status = decode_change_info(xdr, cinfo))) | |
3858 | return status; | |
c0eae66e BH |
3859 | p = xdr_inline_decode(xdr, 4); |
3860 | if (unlikely(!p)) | |
3861 | goto out_overflow; | |
cccddf4f | 3862 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
3863 | p = xdr_inline_decode(xdr, bmlen << 2); |
3864 | if (likely(p)) | |
3865 | return 0; | |
3866 | out_overflow: | |
3867 | print_overflow_msg(__func__, xdr); | |
3868 | return -EIO; | |
1da177e4 LT |
3869 | } |
3870 | ||
3871 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3872 | { | |
8687b63a | 3873 | __be32 *savep; |
6c0195a4 | 3874 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3875 | int status; |
3876 | ||
3877 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3878 | goto xdr_error; | |
3879 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3880 | goto xdr_error; | |
3881 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3882 | goto xdr_error; | |
3883 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3884 | goto xdr_error; | |
3885 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3886 | goto xdr_error; | |
3887 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3888 | goto xdr_error; | |
3889 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3890 | goto xdr_error; | |
3891 | status = verify_attr_len(xdr, savep, attrlen); | |
3892 | xdr_error: | |
3110ff80 | 3893 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3894 | return status; |
3895 | } | |
6c0195a4 | 3896 | |
1da177e4 LT |
3897 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3898 | { | |
8687b63a | 3899 | __be32 *savep; |
6c0195a4 | 3900 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3901 | int status; |
6c0195a4 | 3902 | |
1da177e4 LT |
3903 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3904 | goto xdr_error; | |
3905 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3906 | goto xdr_error; | |
3907 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3908 | goto xdr_error; | |
3909 | ||
3910 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3911 | goto xdr_error; | |
3912 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3913 | goto xdr_error; | |
3914 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3915 | goto xdr_error; | |
3916 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3917 | goto xdr_error; | |
3918 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3919 | goto xdr_error; | |
3920 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3921 | goto xdr_error; | |
3922 | ||
3923 | status = verify_attr_len(xdr, savep, attrlen); | |
3924 | xdr_error: | |
3110ff80 | 3925 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3926 | return status; |
3927 | } | |
3928 | ||
3929 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3930 | { | |
8687b63a | 3931 | __be32 *savep; |
6c0195a4 | 3932 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3933 | int status; |
6c0195a4 | 3934 | |
1da177e4 LT |
3935 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3936 | goto xdr_error; | |
3937 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3938 | goto xdr_error; | |
3939 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3940 | goto xdr_error; | |
3941 | ||
3942 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3943 | goto xdr_error; | |
3944 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3945 | goto xdr_error; | |
3946 | ||
3947 | status = verify_attr_len(xdr, savep, attrlen); | |
3948 | xdr_error: | |
3110ff80 | 3949 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3950 | return status; |
3951 | } | |
3952 | ||
ae42c70a BS |
3953 | static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, |
3954 | struct nfs_fattr *fattr, struct nfs_fh *fh, | |
80e52ace | 3955 | const struct nfs_server *server, int may_sleep) |
1da177e4 | 3956 | { |
bca79478 TM |
3957 | int status; |
3958 | umode_t fmode = 0; | |
99baf625 | 3959 | uint64_t fileid; |
ae42c70a | 3960 | uint32_t type; |
1da177e4 | 3961 | |
f26c7a78 TM |
3962 | status = decode_attr_type(xdr, bitmap, &type); |
3963 | if (status < 0) | |
1da177e4 | 3964 | goto xdr_error; |
409924e4 TM |
3965 | fattr->mode = 0; |
3966 | if (status != 0) { | |
3967 | fattr->mode |= nfs_type2fmt[type]; | |
3968 | fattr->valid |= status; | |
3969 | } | |
1da177e4 | 3970 | |
f26c7a78 TM |
3971 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3972 | if (status < 0) | |
1da177e4 | 3973 | goto xdr_error; |
409924e4 | 3974 | fattr->valid |= status; |
f26c7a78 TM |
3975 | |
3976 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3977 | if (status < 0) | |
1da177e4 | 3978 | goto xdr_error; |
409924e4 | 3979 | fattr->valid |= status; |
f26c7a78 TM |
3980 | |
3981 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3982 | if (status < 0) | |
1da177e4 | 3983 | goto xdr_error; |
409924e4 | 3984 | fattr->valid |= status; |
f26c7a78 | 3985 | |
ae42c70a BS |
3986 | status = decode_attr_error(xdr, bitmap); |
3987 | if (status < 0) | |
3988 | goto xdr_error; | |
3989 | ||
3990 | status = decode_attr_filehandle(xdr, bitmap, fh); | |
3991 | if (status < 0) | |
3992 | goto xdr_error; | |
3993 | ||
f26c7a78 TM |
3994 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); |
3995 | if (status < 0) | |
1da177e4 | 3996 | goto xdr_error; |
409924e4 | 3997 | fattr->valid |= status; |
f26c7a78 TM |
3998 | |
3999 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 4000 | struct nfs4_fs_locations, |
f26c7a78 TM |
4001 | fattr)); |
4002 | if (status < 0) | |
683b57b4 | 4003 | goto xdr_error; |
409924e4 | 4004 | fattr->valid |= status; |
f26c7a78 TM |
4005 | |
4006 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
4007 | if (status < 0) | |
1da177e4 | 4008 | goto xdr_error; |
409924e4 TM |
4009 | if (status != 0) { |
4010 | fattr->mode |= fmode; | |
4011 | fattr->valid |= status; | |
4012 | } | |
f26c7a78 TM |
4013 | |
4014 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
4015 | if (status < 0) | |
1da177e4 | 4016 | goto xdr_error; |
409924e4 | 4017 | fattr->valid |= status; |
f26c7a78 | 4018 | |
e4fd72a1 | 4019 | status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, may_sleep); |
f26c7a78 | 4020 | if (status < 0) |
1da177e4 | 4021 | goto xdr_error; |
409924e4 | 4022 | fattr->valid |= status; |
f26c7a78 | 4023 | |
e4fd72a1 | 4024 | status = decode_attr_group(xdr, bitmap, server, &fattr->gid, may_sleep); |
f26c7a78 | 4025 | if (status < 0) |
1da177e4 | 4026 | goto xdr_error; |
409924e4 | 4027 | fattr->valid |= status; |
f26c7a78 TM |
4028 | |
4029 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
4030 | if (status < 0) | |
1da177e4 | 4031 | goto xdr_error; |
409924e4 | 4032 | fattr->valid |= status; |
f26c7a78 TM |
4033 | |
4034 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
4035 | if (status < 0) | |
1da177e4 | 4036 | goto xdr_error; |
409924e4 | 4037 | fattr->valid |= status; |
f26c7a78 TM |
4038 | |
4039 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
4040 | if (status < 0) | |
1da177e4 | 4041 | goto xdr_error; |
409924e4 | 4042 | fattr->valid |= status; |
f26c7a78 TM |
4043 | |
4044 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
4045 | if (status < 0) | |
1da177e4 | 4046 | goto xdr_error; |
409924e4 | 4047 | fattr->valid |= status; |
f26c7a78 TM |
4048 | |
4049 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
4050 | if (status < 0) | |
1da177e4 | 4051 | goto xdr_error; |
409924e4 | 4052 | fattr->valid |= status; |
f26c7a78 TM |
4053 | |
4054 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
4055 | if (status < 0) | |
99baf625 | 4056 | goto xdr_error; |
3201f3dd | 4057 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 4058 | fattr->fileid = fileid; |
409924e4 TM |
4059 | fattr->valid |= status; |
4060 | } | |
f26c7a78 | 4061 | |
ae42c70a BS |
4062 | xdr_error: |
4063 | dprintk("%s: xdr returned %d\n", __func__, -status); | |
4064 | return status; | |
4065 | } | |
4066 | ||
4067 | static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, | |
4068 | struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) | |
4069 | { | |
4070 | __be32 *savep; | |
4071 | uint32_t attrlen, | |
4072 | bitmap[2] = {0}; | |
4073 | int status; | |
4074 | ||
4075 | status = decode_op_hdr(xdr, OP_GETATTR); | |
4076 | if (status < 0) | |
4077 | goto xdr_error; | |
4078 | ||
4079 | status = decode_attr_bitmap(xdr, bitmap); | |
4080 | if (status < 0) | |
4081 | goto xdr_error; | |
4082 | ||
4083 | status = decode_attr_length(xdr, &attrlen, &savep); | |
4084 | if (status < 0) | |
4085 | goto xdr_error; | |
4086 | ||
4087 | status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); | |
4088 | if (status < 0) | |
4089 | goto xdr_error; | |
4090 | ||
f26c7a78 | 4091 | status = verify_attr_len(xdr, savep, attrlen); |
1da177e4 | 4092 | xdr_error: |
3110ff80 | 4093 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
4094 | return status; |
4095 | } | |
4096 | ||
ae42c70a BS |
4097 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, |
4098 | const struct nfs_server *server, int may_sleep) | |
4099 | { | |
4100 | return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); | |
4101 | } | |
1da177e4 | 4102 | |
504913fb AA |
4103 | /* |
4104 | * Decode potentially multiple layout types. Currently we only support | |
4105 | * one layout driver per file system. | |
4106 | */ | |
4107 | static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, | |
4108 | uint32_t *layouttype) | |
4109 | { | |
4110 | uint32_t *p; | |
4111 | int num; | |
4112 | ||
4113 | p = xdr_inline_decode(xdr, 4); | |
4114 | if (unlikely(!p)) | |
4115 | goto out_overflow; | |
4116 | num = be32_to_cpup(p); | |
4117 | ||
4118 | /* pNFS is not supported by the underlying file system */ | |
4119 | if (num == 0) { | |
4120 | *layouttype = 0; | |
4121 | return 0; | |
4122 | } | |
4123 | if (num > 1) | |
4124 | printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " | |
4125 | "per filesystem not supported\n", __func__); | |
4126 | ||
4127 | /* Decode and set first layout type, move xdr->p past unused types */ | |
4128 | p = xdr_inline_decode(xdr, num * 4); | |
4129 | if (unlikely(!p)) | |
4130 | goto out_overflow; | |
4131 | *layouttype = be32_to_cpup(p); | |
4132 | return 0; | |
4133 | out_overflow: | |
4134 | print_overflow_msg(__func__, xdr); | |
4135 | return -EIO; | |
4136 | } | |
4137 | ||
4138 | /* | |
4139 | * The type of file system exported. | |
4140 | * Note we must ensure that layouttype is set in any non-error case. | |
4141 | */ | |
4142 | static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, | |
4143 | uint32_t *layouttype) | |
4144 | { | |
4145 | int status = 0; | |
4146 | ||
4147 | dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); | |
4148 | if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) | |
4149 | return -EIO; | |
4150 | if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { | |
4151 | status = decode_first_pnfs_layout_type(xdr, layouttype); | |
4152 | bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; | |
4153 | } else | |
4154 | *layouttype = 0; | |
4155 | return status; | |
4156 | } | |
4157 | ||
1da177e4 LT |
4158 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) |
4159 | { | |
8687b63a | 4160 | __be32 *savep; |
1da177e4 LT |
4161 | uint32_t attrlen, bitmap[2]; |
4162 | int status; | |
4163 | ||
4164 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4165 | goto xdr_error; | |
4166 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4167 | goto xdr_error; | |
4168 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4169 | goto xdr_error; | |
4170 | ||
4171 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
4172 | ||
4173 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
4174 | goto xdr_error; | |
4175 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
4176 | goto xdr_error; | |
4177 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
4178 | goto xdr_error; | |
4179 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
4180 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
4181 | goto xdr_error; | |
4182 | fsinfo->wtpref = fsinfo->wtmax; | |
55b6e774 | 4183 | status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); |
504913fb AA |
4184 | if (status != 0) |
4185 | goto xdr_error; | |
4186 | status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); | |
55b6e774 RL |
4187 | if (status != 0) |
4188 | goto xdr_error; | |
1da177e4 LT |
4189 | |
4190 | status = verify_attr_len(xdr, savep, attrlen); | |
4191 | xdr_error: | |
3110ff80 | 4192 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
4193 | return status; |
4194 | } | |
4195 | ||
4196 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
4197 | { | |
8687b63a | 4198 | __be32 *p; |
1da177e4 LT |
4199 | uint32_t len; |
4200 | int status; | |
4201 | ||
9936781d TM |
4202 | /* Zero handle first to allow comparisons */ |
4203 | memset(fh, 0, sizeof(*fh)); | |
4204 | ||
1da177e4 LT |
4205 | status = decode_op_hdr(xdr, OP_GETFH); |
4206 | if (status) | |
4207 | return status; | |
1da177e4 | 4208 | |
c0eae66e BH |
4209 | p = xdr_inline_decode(xdr, 4); |
4210 | if (unlikely(!p)) | |
4211 | goto out_overflow; | |
cccddf4f | 4212 | len = be32_to_cpup(p); |
1da177e4 LT |
4213 | if (len > NFS4_FHSIZE) |
4214 | return -EIO; | |
4215 | fh->size = len; | |
c0eae66e BH |
4216 | p = xdr_inline_decode(xdr, len); |
4217 | if (unlikely(!p)) | |
4218 | goto out_overflow; | |
99398d06 | 4219 | memcpy(fh->data, p, len); |
1da177e4 | 4220 | return 0; |
c0eae66e BH |
4221 | out_overflow: |
4222 | print_overflow_msg(__func__, xdr); | |
4223 | return -EIO; | |
1da177e4 LT |
4224 | } |
4225 | ||
4226 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4227 | { | |
4228 | int status; | |
6c0195a4 | 4229 | |
1da177e4 LT |
4230 | status = decode_op_hdr(xdr, OP_LINK); |
4231 | if (status) | |
4232 | return status; | |
4233 | return decode_change_info(xdr, cinfo); | |
4234 | } | |
4235 | ||
4236 | /* | |
4237 | * We create the owner, so we know a proper owner.id length is 4. | |
4238 | */ | |
911d1aaf | 4239 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 4240 | { |
911d1aaf | 4241 | uint64_t offset, length, clientid; |
8687b63a | 4242 | __be32 *p; |
911d1aaf | 4243 | uint32_t namelen, type; |
1da177e4 | 4244 | |
babddc72 | 4245 | p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ |
c0eae66e BH |
4246 | if (unlikely(!p)) |
4247 | goto out_overflow; | |
babddc72 | 4248 | p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ |
3ceb4dbb | 4249 | p = xdr_decode_hyper(p, &length); |
babddc72 BS |
4250 | type = be32_to_cpup(p++); /* 4 byte read */ |
4251 | if (fl != NULL) { /* manipulate file lock */ | |
911d1aaf TM |
4252 | fl->fl_start = (loff_t)offset; |
4253 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
4254 | if (length == ~(uint64_t)0) | |
4255 | fl->fl_end = OFFSET_MAX; | |
4256 | fl->fl_type = F_WRLCK; | |
4257 | if (type & 1) | |
4258 | fl->fl_type = F_RDLCK; | |
4259 | fl->fl_pid = 0; | |
4260 | } | |
babddc72 BS |
4261 | p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ |
4262 | namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ | |
4263 | p = xdr_inline_decode(xdr, namelen); /* variable size field */ | |
c0eae66e BH |
4264 | if (likely(p)) |
4265 | return -NFS4ERR_DENIED; | |
4266 | out_overflow: | |
4267 | print_overflow_msg(__func__, xdr); | |
4268 | return -EIO; | |
1da177e4 LT |
4269 | } |
4270 | ||
911d1aaf | 4271 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 4272 | { |
1da177e4 LT |
4273 | int status; |
4274 | ||
4275 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
4276 | if (status == -EIO) |
4277 | goto out; | |
1da177e4 | 4278 | if (status == 0) { |
07d30434 BH |
4279 | status = decode_stateid(xdr, &res->stateid); |
4280 | if (unlikely(status)) | |
4281 | goto out; | |
1da177e4 | 4282 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
4283 | status = decode_lock_denied(xdr, NULL); |
4284 | if (res->open_seqid != NULL) | |
4285 | nfs_increment_open_seqid(status, res->open_seqid); | |
4286 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
4287 | out: | |
1da177e4 LT |
4288 | return status; |
4289 | } | |
4290 | ||
911d1aaf | 4291 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
4292 | { |
4293 | int status; | |
4294 | status = decode_op_hdr(xdr, OP_LOCKT); | |
4295 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 4296 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
4297 | return status; |
4298 | } | |
4299 | ||
911d1aaf | 4300 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 4301 | { |
1da177e4 LT |
4302 | int status; |
4303 | ||
4304 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
4305 | if (status != -EIO) |
4306 | nfs_increment_lock_seqid(status, res->seqid); | |
07d30434 BH |
4307 | if (status == 0) |
4308 | status = decode_stateid(xdr, &res->stateid); | |
1da177e4 LT |
4309 | return status; |
4310 | } | |
4311 | ||
d3c7b7cc TM |
4312 | static int decode_release_lockowner(struct xdr_stream *xdr) |
4313 | { | |
4314 | return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); | |
4315 | } | |
4316 | ||
1da177e4 LT |
4317 | static int decode_lookup(struct xdr_stream *xdr) |
4318 | { | |
4319 | return decode_op_hdr(xdr, OP_LOOKUP); | |
4320 | } | |
4321 | ||
4322 | /* This is too sick! */ | |
4323 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
4324 | { | |
05d564fe | 4325 | __be32 *p; |
1da177e4 LT |
4326 | uint32_t limit_type, nblocks, blocksize; |
4327 | ||
c0eae66e BH |
4328 | p = xdr_inline_decode(xdr, 12); |
4329 | if (unlikely(!p)) | |
4330 | goto out_overflow; | |
6f723f77 | 4331 | limit_type = be32_to_cpup(p++); |
1da177e4 | 4332 | switch (limit_type) { |
05d564fe | 4333 | case 1: |
cccddf4f | 4334 | xdr_decode_hyper(p, maxsize); |
05d564fe AA |
4335 | break; |
4336 | case 2: | |
6f723f77 | 4337 | nblocks = be32_to_cpup(p++); |
cccddf4f | 4338 | blocksize = be32_to_cpup(p); |
05d564fe | 4339 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; |
1da177e4 LT |
4340 | } |
4341 | return 0; | |
c0eae66e BH |
4342 | out_overflow: |
4343 | print_overflow_msg(__func__, xdr); | |
4344 | return -EIO; | |
1da177e4 LT |
4345 | } |
4346 | ||
4347 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
4348 | { | |
05d564fe AA |
4349 | __be32 *p; |
4350 | uint32_t delegation_type; | |
07d30434 | 4351 | int status; |
1da177e4 | 4352 | |
c0eae66e BH |
4353 | p = xdr_inline_decode(xdr, 4); |
4354 | if (unlikely(!p)) | |
4355 | goto out_overflow; | |
cccddf4f | 4356 | delegation_type = be32_to_cpup(p); |
1da177e4 LT |
4357 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { |
4358 | res->delegation_type = 0; | |
4359 | return 0; | |
4360 | } | |
07d30434 BH |
4361 | status = decode_stateid(xdr, &res->delegation); |
4362 | if (unlikely(status)) | |
4363 | return status; | |
c0eae66e BH |
4364 | p = xdr_inline_decode(xdr, 4); |
4365 | if (unlikely(!p)) | |
4366 | goto out_overflow; | |
cccddf4f | 4367 | res->do_recall = be32_to_cpup(p); |
05d564fe | 4368 | |
1da177e4 | 4369 | switch (delegation_type) { |
05d564fe AA |
4370 | case NFS4_OPEN_DELEGATE_READ: |
4371 | res->delegation_type = FMODE_READ; | |
4372 | break; | |
4373 | case NFS4_OPEN_DELEGATE_WRITE: | |
4374 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
4375 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
4376 | return -EIO; |
4377 | } | |
7539bbab | 4378 | return decode_ace(xdr, NULL, res->server->nfs_client); |
c0eae66e BH |
4379 | out_overflow: |
4380 | print_overflow_msg(__func__, xdr); | |
4381 | return -EIO; | |
1da177e4 LT |
4382 | } |
4383 | ||
4384 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
4385 | { | |
05d564fe | 4386 | __be32 *p; |
aa53ed54 | 4387 | uint32_t savewords, bmlen, i; |
05d564fe | 4388 | int status; |
1da177e4 | 4389 | |
05d564fe | 4390 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
4391 | if (status != -EIO) |
4392 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4393 | if (!status) |
4394 | status = decode_stateid(xdr, &res->stateid); | |
4395 | if (unlikely(status)) | |
05d564fe | 4396 | return status; |
1da177e4 | 4397 | |
05d564fe | 4398 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 4399 | |
c0eae66e BH |
4400 | p = xdr_inline_decode(xdr, 8); |
4401 | if (unlikely(!p)) | |
4402 | goto out_overflow; | |
6f723f77 | 4403 | res->rflags = be32_to_cpup(p++); |
cccddf4f | 4404 | bmlen = be32_to_cpup(p); |
05d564fe AA |
4405 | if (bmlen > 10) |
4406 | goto xdr_error; | |
1da177e4 | 4407 | |
c0eae66e BH |
4408 | p = xdr_inline_decode(xdr, bmlen << 2); |
4409 | if (unlikely(!p)) | |
4410 | goto out_overflow; | |
aa53ed54 JL |
4411 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
4412 | for (i = 0; i < savewords; ++i) | |
6f723f77 | 4413 | res->attrset[i] = be32_to_cpup(p++); |
aa53ed54 JL |
4414 | for (; i < NFS4_BITMAP_SIZE; i++) |
4415 | res->attrset[i] = 0; | |
4416 | ||
1da177e4 LT |
4417 | return decode_delegation(xdr, res); |
4418 | xdr_error: | |
3110ff80 | 4419 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 | 4420 | return -EIO; |
c0eae66e BH |
4421 | out_overflow: |
4422 | print_overflow_msg(__func__, xdr); | |
4423 | return -EIO; | |
1da177e4 LT |
4424 | } |
4425 | ||
4426 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
4427 | { | |
1da177e4 LT |
4428 | int status; |
4429 | ||
05d564fe | 4430 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
4431 | if (status != -EIO) |
4432 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4433 | if (!status) |
4434 | status = decode_stateid(xdr, &res->stateid); | |
4435 | return status; | |
1da177e4 LT |
4436 | } |
4437 | ||
4438 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
4439 | { | |
1da177e4 LT |
4440 | int status; |
4441 | ||
4442 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
4443 | if (status != -EIO) |
4444 | nfs_increment_open_seqid(status, res->seqid); | |
07d30434 BH |
4445 | if (!status) |
4446 | status = decode_stateid(xdr, &res->stateid); | |
4447 | return status; | |
1da177e4 LT |
4448 | } |
4449 | ||
4450 | static int decode_putfh(struct xdr_stream *xdr) | |
4451 | { | |
4452 | return decode_op_hdr(xdr, OP_PUTFH); | |
4453 | } | |
4454 | ||
4455 | static int decode_putrootfh(struct xdr_stream *xdr) | |
4456 | { | |
4457 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
4458 | } | |
4459 | ||
4460 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
4461 | { | |
4462 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 4463 | __be32 *p; |
1da177e4 LT |
4464 | uint32_t count, eof, recvd, hdrlen; |
4465 | int status; | |
4466 | ||
4467 | status = decode_op_hdr(xdr, OP_READ); | |
4468 | if (status) | |
4469 | return status; | |
c0eae66e BH |
4470 | p = xdr_inline_decode(xdr, 8); |
4471 | if (unlikely(!p)) | |
4472 | goto out_overflow; | |
6f723f77 | 4473 | eof = be32_to_cpup(p++); |
cccddf4f | 4474 | count = be32_to_cpup(p); |
8111f373 | 4475 | hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; |
1da177e4 LT |
4476 | recvd = req->rq_rcv_buf.len - hdrlen; |
4477 | if (count > recvd) { | |
fe82a183 | 4478 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
4479 | "count %u > recvd %u\n", count, recvd); |
4480 | count = recvd; | |
4481 | eof = 0; | |
4482 | } | |
4483 | xdr_read_pages(xdr, count); | |
4484 | res->eof = eof; | |
4485 | res->count = count; | |
4486 | return 0; | |
c0eae66e BH |
4487 | out_overflow: |
4488 | print_overflow_msg(__func__, xdr); | |
4489 | return -EIO; | |
1da177e4 LT |
4490 | } |
4491 | ||
4492 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
4493 | { | |
4494 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
1da177e4 | 4495 | struct kvec *iov = rcvbuf->head; |
bcecff77 CL |
4496 | size_t hdrlen; |
4497 | u32 recvd, pglen = rcvbuf->page_len; | |
bcecff77 | 4498 | int status; |
1da177e4 LT |
4499 | |
4500 | status = decode_op_hdr(xdr, OP_READDIR); | |
db942bbd BH |
4501 | if (!status) |
4502 | status = decode_verifier(xdr, readdir->verifier.data); | |
4503 | if (unlikely(status)) | |
1da177e4 | 4504 | return status; |
44109241 FI |
4505 | dprintk("%s: verifier = %08x:%08x\n", |
4506 | __func__, | |
eadf4598 TM |
4507 | ((u32 *)readdir->verifier.data)[0], |
4508 | ((u32 *)readdir->verifier.data)[1]); | |
4509 | ||
1da177e4 | 4510 | |
db942bbd | 4511 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; |
1da177e4 LT |
4512 | recvd = rcvbuf->len - hdrlen; |
4513 | if (pglen > recvd) | |
4514 | pglen = recvd; | |
4515 | xdr_read_pages(xdr, pglen); | |
4516 | ||
afa8ccc9 | 4517 | |
ac396128 | 4518 | return pglen; |
1da177e4 LT |
4519 | } |
4520 | ||
4521 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
4522 | { | |
4523 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
4524 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
4525 | size_t hdrlen; |
4526 | u32 len, recvd; | |
8687b63a | 4527 | __be32 *p; |
1da177e4 LT |
4528 | int status; |
4529 | ||
4530 | status = decode_op_hdr(xdr, OP_READLINK); | |
4531 | if (status) | |
4532 | return status; | |
4533 | ||
4534 | /* Convert length of symlink */ | |
c0eae66e BH |
4535 | p = xdr_inline_decode(xdr, 4); |
4536 | if (unlikely(!p)) | |
4537 | goto out_overflow; | |
cccddf4f | 4538 | len = be32_to_cpup(p); |
1da177e4 | 4539 | if (len >= rcvbuf->page_len || len <= 0) { |
fe82a183 | 4540 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
4541 | return -ENAMETOOLONG; |
4542 | } | |
4543 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
4544 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4545 | if (recvd < len) { | |
fe82a183 | 4546 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
4547 | "count %u > recvd %u\n", len, recvd); |
4548 | return -EIO; | |
4549 | } | |
4550 | xdr_read_pages(xdr, len); | |
4551 | /* | |
4552 | * The XDR encode routine has set things up so that | |
4553 | * the link text will be copied directly into the | |
4554 | * buffer. We just have to do overflow-checking, | |
4555 | * and and null-terminate the text (the VFS expects | |
4556 | * null-termination). | |
4557 | */ | |
b4687da7 | 4558 | xdr_terminate_string(rcvbuf, len); |
1da177e4 | 4559 | return 0; |
c0eae66e BH |
4560 | out_overflow: |
4561 | print_overflow_msg(__func__, xdr); | |
4562 | return -EIO; | |
1da177e4 LT |
4563 | } |
4564 | ||
4565 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
4566 | { | |
4567 | int status; | |
4568 | ||
4569 | status = decode_op_hdr(xdr, OP_REMOVE); | |
4570 | if (status) | |
4571 | goto out; | |
4572 | status = decode_change_info(xdr, cinfo); | |
4573 | out: | |
4574 | return status; | |
4575 | } | |
4576 | ||
4577 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
4578 | struct nfs4_change_info *new_cinfo) | |
4579 | { | |
4580 | int status; | |
4581 | ||
4582 | status = decode_op_hdr(xdr, OP_RENAME); | |
4583 | if (status) | |
4584 | goto out; | |
4585 | if ((status = decode_change_info(xdr, old_cinfo))) | |
4586 | goto out; | |
4587 | status = decode_change_info(xdr, new_cinfo); | |
4588 | out: | |
4589 | return status; | |
4590 | } | |
4591 | ||
4592 | static int decode_renew(struct xdr_stream *xdr) | |
4593 | { | |
4594 | return decode_op_hdr(xdr, OP_RENEW); | |
4595 | } | |
4596 | ||
56ae19f3 TM |
4597 | static int |
4598 | decode_restorefh(struct xdr_stream *xdr) | |
4599 | { | |
4600 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
4601 | } | |
4602 | ||
029d105e BF |
4603 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
4604 | size_t *acl_len) | |
4605 | { | |
8687b63a | 4606 | __be32 *savep; |
029d105e BF |
4607 | uint32_t attrlen, |
4608 | bitmap[2] = {0}; | |
4609 | struct kvec *iov = req->rq_rcv_buf.head; | |
4610 | int status; | |
4611 | ||
4612 | *acl_len = 0; | |
4613 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
4614 | goto out; | |
4615 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
4616 | goto out; | |
4617 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
4618 | goto out; | |
4619 | ||
4620 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
4621 | return -EIO; | |
4622 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
4623 | size_t hdrlen; |
4624 | u32 recvd; | |
029d105e BF |
4625 | |
4626 | /* We ignore &savep and don't do consistency checks on | |
4627 | * the attr length. Let userspace figure it out.... */ | |
4628 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
4629 | recvd = req->rq_rcv_buf.len - hdrlen; | |
4630 | if (attrlen > recvd) { | |
fe82a183 | 4631 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
4632 | " acl reply: attrlen %u > recvd %u\n", |
4633 | attrlen, recvd); | |
4634 | return -EINVAL; | |
4635 | } | |
c04871e6 | 4636 | xdr_read_pages(xdr, attrlen); |
029d105e | 4637 | *acl_len = attrlen; |
8c233cf9 BF |
4638 | } else |
4639 | status = -EOPNOTSUPP; | |
029d105e BF |
4640 | |
4641 | out: | |
4642 | return status; | |
4643 | } | |
4644 | ||
1da177e4 LT |
4645 | static int |
4646 | decode_savefh(struct xdr_stream *xdr) | |
4647 | { | |
4648 | return decode_op_hdr(xdr, OP_SAVEFH); | |
4649 | } | |
4650 | ||
9e9ecc03 | 4651 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 4652 | { |
8687b63a | 4653 | __be32 *p; |
1da177e4 LT |
4654 | uint32_t bmlen; |
4655 | int status; | |
4656 | ||
1da177e4 LT |
4657 | status = decode_op_hdr(xdr, OP_SETATTR); |
4658 | if (status) | |
4659 | return status; | |
c0eae66e BH |
4660 | p = xdr_inline_decode(xdr, 4); |
4661 | if (unlikely(!p)) | |
4662 | goto out_overflow; | |
cccddf4f | 4663 | bmlen = be32_to_cpup(p); |
c0eae66e BH |
4664 | p = xdr_inline_decode(xdr, bmlen << 2); |
4665 | if (likely(p)) | |
4666 | return 0; | |
4667 | out_overflow: | |
4668 | print_overflow_msg(__func__, xdr); | |
4669 | return -EIO; | |
1da177e4 LT |
4670 | } |
4671 | ||
bb8b27e5 | 4672 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) |
1da177e4 | 4673 | { |
8687b63a | 4674 | __be32 *p; |
1da177e4 LT |
4675 | uint32_t opnum; |
4676 | int32_t nfserr; | |
4677 | ||
c0eae66e BH |
4678 | p = xdr_inline_decode(xdr, 8); |
4679 | if (unlikely(!p)) | |
4680 | goto out_overflow; | |
6f723f77 | 4681 | opnum = be32_to_cpup(p++); |
1da177e4 | 4682 | if (opnum != OP_SETCLIENTID) { |
fe82a183 | 4683 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 4684 | " %d\n", opnum); |
1da177e4 LT |
4685 | return -EIO; |
4686 | } | |
cccddf4f | 4687 | nfserr = be32_to_cpup(p); |
1da177e4 | 4688 | if (nfserr == NFS_OK) { |
c0eae66e BH |
4689 | p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); |
4690 | if (unlikely(!p)) | |
4691 | goto out_overflow; | |
bb8b27e5 TM |
4692 | p = xdr_decode_hyper(p, &res->clientid); |
4693 | memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); | |
1da177e4 LT |
4694 | } else if (nfserr == NFSERR_CLID_INUSE) { |
4695 | uint32_t len; | |
4696 | ||
4697 | /* skip netid string */ | |
c0eae66e BH |
4698 | p = xdr_inline_decode(xdr, 4); |
4699 | if (unlikely(!p)) | |
4700 | goto out_overflow; | |
cccddf4f | 4701 | len = be32_to_cpup(p); |
c0eae66e BH |
4702 | p = xdr_inline_decode(xdr, len); |
4703 | if (unlikely(!p)) | |
4704 | goto out_overflow; | |
1da177e4 LT |
4705 | |
4706 | /* skip uaddr string */ | |
c0eae66e BH |
4707 | p = xdr_inline_decode(xdr, 4); |
4708 | if (unlikely(!p)) | |
4709 | goto out_overflow; | |
cccddf4f | 4710 | len = be32_to_cpup(p); |
c0eae66e BH |
4711 | p = xdr_inline_decode(xdr, len); |
4712 | if (unlikely(!p)) | |
4713 | goto out_overflow; | |
1da177e4 LT |
4714 | return -NFSERR_CLID_INUSE; |
4715 | } else | |
856dff3d | 4716 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
4717 | |
4718 | return 0; | |
c0eae66e BH |
4719 | out_overflow: |
4720 | print_overflow_msg(__func__, xdr); | |
4721 | return -EIO; | |
1da177e4 LT |
4722 | } |
4723 | ||
4724 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
4725 | { | |
4726 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
4727 | } | |
4728 | ||
4729 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
4730 | { | |
8687b63a | 4731 | __be32 *p; |
1da177e4 LT |
4732 | int status; |
4733 | ||
4734 | status = decode_op_hdr(xdr, OP_WRITE); | |
4735 | if (status) | |
4736 | return status; | |
4737 | ||
c0eae66e BH |
4738 | p = xdr_inline_decode(xdr, 16); |
4739 | if (unlikely(!p)) | |
4740 | goto out_overflow; | |
6f723f77 BH |
4741 | res->count = be32_to_cpup(p++); |
4742 | res->verf->committed = be32_to_cpup(p++); | |
99398d06 | 4743 | memcpy(res->verf->verifier, p, 8); |
1da177e4 | 4744 | return 0; |
c0eae66e BH |
4745 | out_overflow: |
4746 | print_overflow_msg(__func__, xdr); | |
4747 | return -EIO; | |
1da177e4 LT |
4748 | } |
4749 | ||
4750 | static int decode_delegreturn(struct xdr_stream *xdr) | |
4751 | { | |
4752 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
4753 | } | |
4754 | ||
99fe60d0 BH |
4755 | #if defined(CONFIG_NFS_V4_1) |
4756 | static int decode_exchange_id(struct xdr_stream *xdr, | |
4757 | struct nfs41_exchange_id_res *res) | |
4758 | { | |
4759 | __be32 *p; | |
4760 | uint32_t dummy; | |
2460ba57 | 4761 | char *dummy_str; |
99fe60d0 BH |
4762 | int status; |
4763 | struct nfs_client *clp = res->client; | |
4764 | ||
4765 | status = decode_op_hdr(xdr, OP_EXCHANGE_ID); | |
4766 | if (status) | |
4767 | return status; | |
4768 | ||
c0eae66e BH |
4769 | p = xdr_inline_decode(xdr, 8); |
4770 | if (unlikely(!p)) | |
4771 | goto out_overflow; | |
114f64b5 | 4772 | xdr_decode_hyper(p, &clp->cl_clientid); |
c0eae66e BH |
4773 | p = xdr_inline_decode(xdr, 12); |
4774 | if (unlikely(!p)) | |
4775 | goto out_overflow; | |
6f723f77 BH |
4776 | clp->cl_seqid = be32_to_cpup(p++); |
4777 | clp->cl_exchange_flags = be32_to_cpup(p++); | |
99fe60d0 BH |
4778 | |
4779 | /* We ask for SP4_NONE */ | |
cccddf4f | 4780 | dummy = be32_to_cpup(p); |
99fe60d0 BH |
4781 | if (dummy != SP4_NONE) |
4782 | return -EIO; | |
4783 | ||
4784 | /* Throw away minor_id */ | |
c0eae66e BH |
4785 | p = xdr_inline_decode(xdr, 8); |
4786 | if (unlikely(!p)) | |
4787 | goto out_overflow; | |
99fe60d0 BH |
4788 | |
4789 | /* Throw away Major id */ | |
2460ba57 BH |
4790 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4791 | if (unlikely(status)) | |
4792 | return status; | |
99fe60d0 BH |
4793 | |
4794 | /* Throw away server_scope */ | |
2460ba57 BH |
4795 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4796 | if (unlikely(status)) | |
4797 | return status; | |
99fe60d0 BH |
4798 | |
4799 | /* Throw away Implementation id array */ | |
2460ba57 BH |
4800 | status = decode_opaque_inline(xdr, &dummy, &dummy_str); |
4801 | if (unlikely(status)) | |
4802 | return status; | |
99fe60d0 BH |
4803 | |
4804 | return 0; | |
c0eae66e BH |
4805 | out_overflow: |
4806 | print_overflow_msg(__func__, xdr); | |
4807 | return -EIO; | |
99fe60d0 | 4808 | } |
fc931582 AA |
4809 | |
4810 | static int decode_chan_attrs(struct xdr_stream *xdr, | |
4811 | struct nfs4_channel_attrs *attrs) | |
4812 | { | |
4813 | __be32 *p; | |
4814 | u32 nr_attrs; | |
4815 | ||
c0eae66e BH |
4816 | p = xdr_inline_decode(xdr, 28); |
4817 | if (unlikely(!p)) | |
4818 | goto out_overflow; | |
6f723f77 BH |
4819 | attrs->headerpadsz = be32_to_cpup(p++); |
4820 | attrs->max_rqst_sz = be32_to_cpup(p++); | |
4821 | attrs->max_resp_sz = be32_to_cpup(p++); | |
4822 | attrs->max_resp_sz_cached = be32_to_cpup(p++); | |
4823 | attrs->max_ops = be32_to_cpup(p++); | |
4824 | attrs->max_reqs = be32_to_cpup(p++); | |
cccddf4f | 4825 | nr_attrs = be32_to_cpup(p); |
fc931582 AA |
4826 | if (unlikely(nr_attrs > 1)) { |
4827 | printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", | |
4828 | __func__, nr_attrs); | |
4829 | return -EINVAL; | |
4830 | } | |
c0eae66e BH |
4831 | if (nr_attrs == 1) { |
4832 | p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ | |
4833 | if (unlikely(!p)) | |
4834 | goto out_overflow; | |
4835 | } | |
fc931582 | 4836 | return 0; |
c0eae66e BH |
4837 | out_overflow: |
4838 | print_overflow_msg(__func__, xdr); | |
4839 | return -EIO; | |
fc931582 AA |
4840 | } |
4841 | ||
e78291e4 BH |
4842 | static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) |
4843 | { | |
4844 | return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); | |
fc931582 AA |
4845 | } |
4846 | ||
4847 | static int decode_create_session(struct xdr_stream *xdr, | |
4848 | struct nfs41_create_session_res *res) | |
4849 | { | |
4850 | __be32 *p; | |
4851 | int status; | |
4852 | struct nfs_client *clp = res->client; | |
4853 | struct nfs4_session *session = clp->cl_session; | |
4854 | ||
4855 | status = decode_op_hdr(xdr, OP_CREATE_SESSION); | |
e78291e4 BH |
4856 | if (!status) |
4857 | status = decode_sessionid(xdr, &session->sess_id); | |
4858 | if (unlikely(status)) | |
fc931582 AA |
4859 | return status; |
4860 | ||
fc931582 | 4861 | /* seqid, flags */ |
c0eae66e BH |
4862 | p = xdr_inline_decode(xdr, 8); |
4863 | if (unlikely(!p)) | |
4864 | goto out_overflow; | |
6f723f77 | 4865 | clp->cl_seqid = be32_to_cpup(p++); |
cccddf4f | 4866 | session->flags = be32_to_cpup(p); |
fc931582 AA |
4867 | |
4868 | /* Channel attributes */ | |
4869 | status = decode_chan_attrs(xdr, &session->fc_attrs); | |
4870 | if (!status) | |
4871 | status = decode_chan_attrs(xdr, &session->bc_attrs); | |
4872 | return status; | |
c0eae66e BH |
4873 | out_overflow: |
4874 | print_overflow_msg(__func__, xdr); | |
4875 | return -EIO; | |
fc931582 | 4876 | } |
0f3e66c6 AA |
4877 | |
4878 | static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) | |
4879 | { | |
4880 | return decode_op_hdr(xdr, OP_DESTROY_SESSION); | |
4881 | } | |
18019753 RL |
4882 | |
4883 | static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) | |
4884 | { | |
4885 | return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); | |
4886 | } | |
99fe60d0 BH |
4887 | #endif /* CONFIG_NFS_V4_1 */ |
4888 | ||
9b7b9fcc AA |
4889 | static int decode_sequence(struct xdr_stream *xdr, |
4890 | struct nfs4_sequence_res *res, | |
4891 | struct rpc_rqst *rqstp) | |
4892 | { | |
4893 | #if defined(CONFIG_NFS_V4_1) | |
fc01cea9 AA |
4894 | struct nfs4_sessionid id; |
4895 | u32 dummy; | |
4896 | int status; | |
4897 | __be32 *p; | |
4898 | ||
9b7b9fcc AA |
4899 | if (!res->sr_session) |
4900 | return 0; | |
4901 | ||
fc01cea9 | 4902 | status = decode_op_hdr(xdr, OP_SEQUENCE); |
e78291e4 BH |
4903 | if (!status) |
4904 | status = decode_sessionid(xdr, &id); | |
4905 | if (unlikely(status)) | |
fc01cea9 | 4906 | goto out_err; |
9b7b9fcc | 4907 | |
fc01cea9 AA |
4908 | /* |
4909 | * If the server returns different values for sessionID, slotID or | |
4910 | * sequence number, the server is looney tunes. | |
4911 | */ | |
fdcb4577 | 4912 | status = -EREMOTEIO; |
fc01cea9 | 4913 | |
fc01cea9 AA |
4914 | if (memcmp(id.data, res->sr_session->sess_id.data, |
4915 | NFS4_MAX_SESSIONID_LEN)) { | |
4916 | dprintk("%s Invalid session id\n", __func__); | |
4917 | goto out_err; | |
4918 | } | |
e78291e4 | 4919 | |
c0eae66e BH |
4920 | p = xdr_inline_decode(xdr, 20); |
4921 | if (unlikely(!p)) | |
4922 | goto out_overflow; | |
e78291e4 | 4923 | |
fc01cea9 | 4924 | /* seqid */ |
6f723f77 | 4925 | dummy = be32_to_cpup(p++); |
dfb4f309 | 4926 | if (dummy != res->sr_slot->seq_nr) { |
fc01cea9 AA |
4927 | dprintk("%s Invalid sequence number\n", __func__); |
4928 | goto out_err; | |
4929 | } | |
4930 | /* slot id */ | |
6f723f77 | 4931 | dummy = be32_to_cpup(p++); |
dfb4f309 | 4932 | if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { |
fc01cea9 AA |
4933 | dprintk("%s Invalid slot id\n", __func__); |
4934 | goto out_err; | |
4935 | } | |
4936 | /* highest slot id - currently not processed */ | |
6f723f77 | 4937 | dummy = be32_to_cpup(p++); |
fc01cea9 | 4938 | /* target highest slot id - currently not processed */ |
6f723f77 | 4939 | dummy = be32_to_cpup(p++); |
0629e370 AB |
4940 | /* result flags */ |
4941 | res->sr_status_flags = be32_to_cpup(p); | |
fc01cea9 AA |
4942 | status = 0; |
4943 | out_err: | |
4944 | res->sr_status = status; | |
4945 | return status; | |
c0eae66e BH |
4946 | out_overflow: |
4947 | print_overflow_msg(__func__, xdr); | |
4948 | status = -EIO; | |
4949 | goto out_err; | |
fc01cea9 | 4950 | #else /* CONFIG_NFS_V4_1 */ |
9b7b9fcc | 4951 | return 0; |
fc01cea9 | 4952 | #endif /* CONFIG_NFS_V4_1 */ |
9b7b9fcc AA |
4953 | } |
4954 | ||
b1f69b75 AA |
4955 | #if defined(CONFIG_NFS_V4_1) |
4956 | ||
4957 | static int decode_getdeviceinfo(struct xdr_stream *xdr, | |
4958 | struct pnfs_device *pdev) | |
4959 | { | |
4960 | __be32 *p; | |
4961 | uint32_t len, type; | |
4962 | int status; | |
4963 | ||
4964 | status = decode_op_hdr(xdr, OP_GETDEVICEINFO); | |
4965 | if (status) { | |
4966 | if (status == -ETOOSMALL) { | |
4967 | p = xdr_inline_decode(xdr, 4); | |
4968 | if (unlikely(!p)) | |
4969 | goto out_overflow; | |
4970 | pdev->mincount = be32_to_cpup(p); | |
4971 | dprintk("%s: Min count too small. mincnt = %u\n", | |
4972 | __func__, pdev->mincount); | |
4973 | } | |
4974 | return status; | |
4975 | } | |
4976 | ||
4977 | p = xdr_inline_decode(xdr, 8); | |
4978 | if (unlikely(!p)) | |
4979 | goto out_overflow; | |
4980 | type = be32_to_cpup(p++); | |
4981 | if (type != pdev->layout_type) { | |
4982 | dprintk("%s: layout mismatch req: %u pdev: %u\n", | |
4983 | __func__, pdev->layout_type, type); | |
4984 | return -EINVAL; | |
4985 | } | |
4986 | /* | |
4987 | * Get the length of the opaque device_addr4. xdr_read_pages places | |
4988 | * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) | |
4989 | * and places the remaining xdr data in xdr_buf->tail | |
4990 | */ | |
4991 | pdev->mincount = be32_to_cpup(p); | |
4992 | xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ | |
4993 | ||
4994 | /* Parse notification bitmap, verifying that it is zero. */ | |
4995 | p = xdr_inline_decode(xdr, 4); | |
4996 | if (unlikely(!p)) | |
4997 | goto out_overflow; | |
4998 | len = be32_to_cpup(p); | |
4999 | if (len) { | |
ead00597 | 5000 | uint32_t i; |
b1f69b75 AA |
5001 | |
5002 | p = xdr_inline_decode(xdr, 4 * len); | |
5003 | if (unlikely(!p)) | |
5004 | goto out_overflow; | |
5005 | for (i = 0; i < len; i++, p++) { | |
5006 | if (be32_to_cpup(p)) { | |
5007 | dprintk("%s: notifications not supported\n", | |
5008 | __func__); | |
5009 | return -EIO; | |
5010 | } | |
5011 | } | |
5012 | } | |
5013 | return 0; | |
5014 | out_overflow: | |
5015 | print_overflow_msg(__func__, xdr); | |
5016 | return -EIO; | |
5017 | } | |
5018 | ||
5019 | static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, | |
5020 | struct nfs4_layoutget_res *res) | |
5021 | { | |
5022 | __be32 *p; | |
5023 | int status; | |
5024 | u32 layout_count; | |
5025 | ||
5026 | status = decode_op_hdr(xdr, OP_LAYOUTGET); | |
5027 | if (status) | |
5028 | return status; | |
5029 | p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); | |
5030 | if (unlikely(!p)) | |
5031 | goto out_overflow; | |
5032 | res->return_on_close = be32_to_cpup(p++); | |
5033 | p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); | |
5034 | layout_count = be32_to_cpup(p); | |
5035 | if (!layout_count) { | |
5036 | dprintk("%s: server responded with empty layout array\n", | |
5037 | __func__); | |
5038 | return -EINVAL; | |
5039 | } | |
5040 | ||
5041 | p = xdr_inline_decode(xdr, 24); | |
5042 | if (unlikely(!p)) | |
5043 | goto out_overflow; | |
5044 | p = xdr_decode_hyper(p, &res->range.offset); | |
5045 | p = xdr_decode_hyper(p, &res->range.length); | |
5046 | res->range.iomode = be32_to_cpup(p++); | |
5047 | res->type = be32_to_cpup(p++); | |
5048 | ||
5049 | status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p); | |
5050 | if (unlikely(status)) | |
5051 | return status; | |
5052 | ||
5053 | dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", | |
5054 | __func__, | |
5055 | (unsigned long)res->range.offset, | |
5056 | (unsigned long)res->range.length, | |
5057 | res->range.iomode, | |
5058 | res->type, | |
5059 | res->layout.len); | |
5060 | ||
5061 | /* nfs4_proc_layoutget allocated a single page */ | |
5062 | if (res->layout.len > PAGE_SIZE) | |
5063 | return -ENOMEM; | |
5064 | memcpy(res->layout.buf, p, res->layout.len); | |
5065 | ||
5066 | if (layout_count > 1) { | |
5067 | /* We only handle a length one array at the moment. Any | |
5068 | * further entries are just ignored. Note that this means | |
5069 | * the client may see a response that is less than the | |
5070 | * minimum it requested. | |
5071 | */ | |
5072 | dprintk("%s: server responded with %d layouts, dropping tail\n", | |
5073 | __func__, layout_count); | |
5074 | } | |
5075 | ||
5076 | return 0; | |
5077 | out_overflow: | |
5078 | print_overflow_msg(__func__, xdr); | |
5079 | return -EIO; | |
5080 | } | |
863a3c6c AA |
5081 | |
5082 | static int decode_layoutcommit(struct xdr_stream *xdr, | |
5083 | struct rpc_rqst *req, | |
5084 | struct nfs4_layoutcommit_res *res) | |
5085 | { | |
5086 | __be32 *p; | |
5087 | __u32 sizechanged; | |
5088 | int status; | |
5089 | ||
5090 | status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); | |
5091 | if (status) | |
5092 | return status; | |
5093 | ||
5094 | p = xdr_inline_decode(xdr, 4); | |
5095 | if (unlikely(!p)) | |
5096 | goto out_overflow; | |
5097 | sizechanged = be32_to_cpup(p); | |
5098 | ||
5099 | if (sizechanged) { | |
5100 | /* throw away new size */ | |
5101 | p = xdr_inline_decode(xdr, 8); | |
5102 | if (unlikely(!p)) | |
5103 | goto out_overflow; | |
5104 | } | |
5105 | return 0; | |
5106 | out_overflow: | |
5107 | print_overflow_msg(__func__, xdr); | |
5108 | return -EIO; | |
5109 | } | |
b1f69b75 AA |
5110 | #endif /* CONFIG_NFS_V4_1 */ |
5111 | ||
49c2559e BH |
5112 | /* |
5113 | * END OF "GENERIC" DECODE ROUTINES. | |
5114 | */ | |
5115 | ||
1da177e4 LT |
5116 | /* |
5117 | * Decode OPEN_DOWNGRADE response | |
5118 | */ | |
bf269551 CL |
5119 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, |
5120 | struct xdr_stream *xdr, | |
5121 | struct nfs_closeres *res) | |
1da177e4 | 5122 | { |
05d564fe AA |
5123 | struct compound_hdr hdr; |
5124 | int status; | |
5125 | ||
bf269551 | 5126 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5127 | if (status) |
5128 | goto out; | |
bf269551 | 5129 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
5130 | if (status) |
5131 | goto out; | |
bf269551 | 5132 | status = decode_putfh(xdr); |
05d564fe AA |
5133 | if (status) |
5134 | goto out; | |
bf269551 | 5135 | status = decode_open_downgrade(xdr, res); |
516a6af6 TM |
5136 | if (status != 0) |
5137 | goto out; | |
bf269551 | 5138 | decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5139 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 | 5140 | out: |
05d564fe | 5141 | return status; |
1da177e4 LT |
5142 | } |
5143 | ||
1da177e4 LT |
5144 | /* |
5145 | * Decode ACCESS response | |
5146 | */ | |
bf269551 CL |
5147 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5148 | struct nfs4_accessres *res) | |
1da177e4 | 5149 | { |
1da177e4 LT |
5150 | struct compound_hdr hdr; |
5151 | int status; | |
6c0195a4 | 5152 | |
bf269551 | 5153 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5154 | if (status) |
5155 | goto out; | |
bf269551 | 5156 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5157 | if (status) |
1da177e4 | 5158 | goto out; |
bf269551 | 5159 | status = decode_putfh(xdr); |
76b32999 TM |
5160 | if (status != 0) |
5161 | goto out; | |
bf269551 | 5162 | status = decode_access(xdr, res); |
76b32999 TM |
5163 | if (status != 0) |
5164 | goto out; | |
bf269551 | 5165 | decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5166 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5167 | out: |
5168 | return status; | |
5169 | } | |
5170 | ||
5171 | /* | |
5172 | * Decode LOOKUP response | |
5173 | */ | |
bf269551 CL |
5174 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5175 | struct nfs4_lookup_res *res) | |
1da177e4 | 5176 | { |
1da177e4 LT |
5177 | struct compound_hdr hdr; |
5178 | int status; | |
6c0195a4 | 5179 | |
bf269551 | 5180 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5181 | if (status) |
5182 | goto out; | |
bf269551 | 5183 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5184 | if (status) |
1da177e4 | 5185 | goto out; |
bf269551 CL |
5186 | status = decode_putfh(xdr); |
5187 | if (status) | |
1da177e4 | 5188 | goto out; |
bf269551 CL |
5189 | status = decode_lookup(xdr); |
5190 | if (status) | |
1da177e4 | 5191 | goto out; |
bf269551 CL |
5192 | status = decode_getfh(xdr, res->fh); |
5193 | if (status) | |
1da177e4 | 5194 | goto out; |
bf269551 | 5195 | status = decode_getfattr(xdr, res->fattr, res->server |
80e52ace | 5196 | ,!RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5197 | out: |
5198 | return status; | |
5199 | } | |
5200 | ||
5201 | /* | |
5202 | * Decode LOOKUP_ROOT response | |
5203 | */ | |
bf269551 CL |
5204 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, |
5205 | struct xdr_stream *xdr, | |
5206 | struct nfs4_lookup_res *res) | |
1da177e4 | 5207 | { |
1da177e4 LT |
5208 | struct compound_hdr hdr; |
5209 | int status; | |
6c0195a4 | 5210 | |
bf269551 | 5211 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5212 | if (status) |
5213 | goto out; | |
bf269551 | 5214 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5215 | if (status) |
1da177e4 | 5216 | goto out; |
bf269551 CL |
5217 | status = decode_putrootfh(xdr); |
5218 | if (status) | |
1da177e4 | 5219 | goto out; |
bf269551 CL |
5220 | status = decode_getfh(xdr, res->fh); |
5221 | if (status == 0) | |
5222 | status = decode_getfattr(xdr, res->fattr, res->server, | |
80e52ace | 5223 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5224 | out: |
5225 | return status; | |
5226 | } | |
5227 | ||
5228 | /* | |
5229 | * Decode REMOVE response | |
5230 | */ | |
bf269551 CL |
5231 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5232 | struct nfs_removeres *res) | |
1da177e4 | 5233 | { |
1da177e4 LT |
5234 | struct compound_hdr hdr; |
5235 | int status; | |
6c0195a4 | 5236 | |
bf269551 | 5237 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5238 | if (status) |
5239 | goto out; | |
bf269551 | 5240 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5241 | if (status) |
1da177e4 | 5242 | goto out; |
bf269551 CL |
5243 | status = decode_putfh(xdr); |
5244 | if (status) | |
16e42959 | 5245 | goto out; |
bf269551 CL |
5246 | status = decode_remove(xdr, &res->cinfo); |
5247 | if (status) | |
16e42959 | 5248 | goto out; |
bf269551 | 5249 | decode_getfattr(xdr, res->dir_attr, res->server, |
80e52ace | 5250 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5251 | out: |
5252 | return status; | |
5253 | } | |
5254 | ||
5255 | /* | |
5256 | * Decode RENAME response | |
5257 | */ | |
bf269551 CL |
5258 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5259 | struct nfs_renameres *res) | |
1da177e4 | 5260 | { |
1da177e4 LT |
5261 | struct compound_hdr hdr; |
5262 | int status; | |
6c0195a4 | 5263 | |
bf269551 | 5264 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5265 | if (status) |
5266 | goto out; | |
bf269551 | 5267 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5268 | if (status) |
1da177e4 | 5269 | goto out; |
bf269551 CL |
5270 | status = decode_putfh(xdr); |
5271 | if (status) | |
1da177e4 | 5272 | goto out; |
bf269551 CL |
5273 | status = decode_savefh(xdr); |
5274 | if (status) | |
1da177e4 | 5275 | goto out; |
bf269551 CL |
5276 | status = decode_putfh(xdr); |
5277 | if (status) | |
1da177e4 | 5278 | goto out; |
bf269551 CL |
5279 | status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); |
5280 | if (status) | |
6caf2c82 TM |
5281 | goto out; |
5282 | /* Current FH is target directory */ | |
bf269551 | 5283 | if (decode_getfattr(xdr, res->new_fattr, res->server, |
80e52ace | 5284 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) |
6caf2c82 | 5285 | goto out; |
bf269551 CL |
5286 | status = decode_restorefh(xdr); |
5287 | if (status) | |
6caf2c82 | 5288 | goto out; |
bf269551 | 5289 | decode_getfattr(xdr, res->old_fattr, res->server, |
80e52ace | 5290 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5291 | out: |
5292 | return status; | |
5293 | } | |
5294 | ||
5295 | /* | |
5296 | * Decode LINK response | |
5297 | */ | |
bf269551 CL |
5298 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5299 | struct nfs4_link_res *res) | |
1da177e4 | 5300 | { |
1da177e4 LT |
5301 | struct compound_hdr hdr; |
5302 | int status; | |
6c0195a4 | 5303 | |
bf269551 | 5304 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5305 | if (status) |
5306 | goto out; | |
bf269551 | 5307 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5308 | if (status) |
1da177e4 | 5309 | goto out; |
bf269551 CL |
5310 | status = decode_putfh(xdr); |
5311 | if (status) | |
1da177e4 | 5312 | goto out; |
bf269551 CL |
5313 | status = decode_savefh(xdr); |
5314 | if (status) | |
1da177e4 | 5315 | goto out; |
bf269551 CL |
5316 | status = decode_putfh(xdr); |
5317 | if (status) | |
1da177e4 | 5318 | goto out; |
bf269551 CL |
5319 | status = decode_link(xdr, &res->cinfo); |
5320 | if (status) | |
91ba2eee TM |
5321 | goto out; |
5322 | /* | |
5323 | * Note order: OP_LINK leaves the directory as the current | |
5324 | * filehandle. | |
5325 | */ | |
bf269551 | 5326 | if (decode_getfattr(xdr, res->dir_attr, res->server, |
80e52ace | 5327 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) |
91ba2eee | 5328 | goto out; |
bf269551 CL |
5329 | status = decode_restorefh(xdr); |
5330 | if (status) | |
91ba2eee | 5331 | goto out; |
bf269551 | 5332 | decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5333 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5334 | out: |
5335 | return status; | |
5336 | } | |
5337 | ||
5338 | /* | |
5339 | * Decode CREATE response | |
5340 | */ | |
bf269551 CL |
5341 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5342 | struct nfs4_create_res *res) | |
1da177e4 | 5343 | { |
1da177e4 LT |
5344 | struct compound_hdr hdr; |
5345 | int status; | |
6c0195a4 | 5346 | |
bf269551 | 5347 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5348 | if (status) |
5349 | goto out; | |
bf269551 | 5350 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5351 | if (status) |
1da177e4 | 5352 | goto out; |
bf269551 CL |
5353 | status = decode_putfh(xdr); |
5354 | if (status) | |
1da177e4 | 5355 | goto out; |
bf269551 CL |
5356 | status = decode_savefh(xdr); |
5357 | if (status) | |
56ae19f3 | 5358 | goto out; |
bf269551 CL |
5359 | status = decode_create(xdr, &res->dir_cinfo); |
5360 | if (status) | |
1da177e4 | 5361 | goto out; |
bf269551 CL |
5362 | status = decode_getfh(xdr, res->fh); |
5363 | if (status) | |
1da177e4 | 5364 | goto out; |
bf269551 | 5365 | if (decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5366 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) |
56ae19f3 | 5367 | goto out; |
bf269551 CL |
5368 | status = decode_restorefh(xdr); |
5369 | if (status) | |
56ae19f3 | 5370 | goto out; |
bf269551 | 5371 | decode_getfattr(xdr, res->dir_fattr, res->server, |
80e52ace | 5372 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5373 | out: |
5374 | return status; | |
5375 | } | |
5376 | ||
5377 | /* | |
5378 | * Decode SYMLINK response | |
5379 | */ | |
bf269551 CL |
5380 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5381 | struct nfs4_create_res *res) | |
1da177e4 | 5382 | { |
bf269551 | 5383 | return nfs4_xdr_dec_create(rqstp, xdr, res); |
1da177e4 LT |
5384 | } |
5385 | ||
5386 | /* | |
5387 | * Decode GETATTR response | |
5388 | */ | |
bf269551 CL |
5389 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5390 | struct nfs4_getattr_res *res) | |
1da177e4 | 5391 | { |
1da177e4 LT |
5392 | struct compound_hdr hdr; |
5393 | int status; | |
6c0195a4 | 5394 | |
bf269551 | 5395 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5396 | if (status) |
5397 | goto out; | |
bf269551 | 5398 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5399 | if (status) |
5400 | goto out; | |
bf269551 | 5401 | status = decode_putfh(xdr); |
1da177e4 LT |
5402 | if (status) |
5403 | goto out; | |
bf269551 | 5404 | status = decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5405 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 LT |
5406 | out: |
5407 | return status; | |
1da177e4 LT |
5408 | } |
5409 | ||
23ec6965 BF |
5410 | /* |
5411 | * Encode an SETACL request | |
5412 | */ | |
9f06c719 CL |
5413 | static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, |
5414 | struct nfs_setaclargs *args) | |
23ec6965 | 5415 | { |
05d564fe | 5416 | struct compound_hdr hdr = { |
66cc0429 | 5417 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 5418 | }; |
05d564fe | 5419 | |
9f06c719 CL |
5420 | encode_compound_hdr(xdr, req, &hdr); |
5421 | encode_sequence(xdr, &args->seq_args, &hdr); | |
5422 | encode_putfh(xdr, args->fh, &hdr); | |
5423 | encode_setacl(xdr, args, &hdr); | |
d017931c | 5424 | encode_nops(&hdr); |
23ec6965 | 5425 | } |
05d564fe | 5426 | |
23ec6965 BF |
5427 | /* |
5428 | * Decode SETACL response | |
5429 | */ | |
5430 | static int | |
bf269551 | 5431 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
73c403a9 | 5432 | struct nfs_setaclres *res) |
23ec6965 | 5433 | { |
23ec6965 BF |
5434 | struct compound_hdr hdr; |
5435 | int status; | |
5436 | ||
bf269551 | 5437 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5438 | if (status) |
5439 | goto out; | |
bf269551 | 5440 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
23ec6965 BF |
5441 | if (status) |
5442 | goto out; | |
bf269551 | 5443 | status = decode_putfh(xdr); |
23ec6965 BF |
5444 | if (status) |
5445 | goto out; | |
bf269551 | 5446 | status = decode_setattr(xdr); |
23ec6965 BF |
5447 | out: |
5448 | return status; | |
5449 | } | |
1da177e4 | 5450 | |
029d105e BF |
5451 | /* |
5452 | * Decode GETACL response | |
5453 | */ | |
5454 | static int | |
bf269551 | 5455 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
663c79b3 | 5456 | struct nfs_getaclres *res) |
029d105e | 5457 | { |
029d105e BF |
5458 | struct compound_hdr hdr; |
5459 | int status; | |
5460 | ||
bf269551 | 5461 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5462 | if (status) |
5463 | goto out; | |
bf269551 | 5464 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
029d105e BF |
5465 | if (status) |
5466 | goto out; | |
bf269551 | 5467 | status = decode_putfh(xdr); |
029d105e BF |
5468 | if (status) |
5469 | goto out; | |
bf269551 | 5470 | status = decode_getacl(xdr, rqstp, &res->acl_len); |
029d105e BF |
5471 | |
5472 | out: | |
5473 | return status; | |
5474 | } | |
5475 | ||
1da177e4 LT |
5476 | /* |
5477 | * Decode CLOSE response | |
5478 | */ | |
bf269551 CL |
5479 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5480 | struct nfs_closeres *res) | |
1da177e4 | 5481 | { |
05d564fe AA |
5482 | struct compound_hdr hdr; |
5483 | int status; | |
5484 | ||
bf269551 | 5485 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5486 | if (status) |
5487 | goto out; | |
bf269551 | 5488 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
5489 | if (status) |
5490 | goto out; | |
bf269551 | 5491 | status = decode_putfh(xdr); |
05d564fe AA |
5492 | if (status) |
5493 | goto out; | |
bf269551 | 5494 | status = decode_close(xdr, res); |
516a6af6 TM |
5495 | if (status != 0) |
5496 | goto out; | |
5497 | /* | |
5498 | * Note: Server may do delete on close for this file | |
5499 | * in which case the getattr call will fail with | |
5500 | * an ESTALE error. Shouldn't be a problem, | |
5501 | * though, since fattr->valid will remain unset. | |
5502 | */ | |
bf269551 | 5503 | decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5504 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 | 5505 | out: |
05d564fe | 5506 | return status; |
1da177e4 LT |
5507 | } |
5508 | ||
5509 | /* | |
5510 | * Decode OPEN response | |
5511 | */ | |
bf269551 CL |
5512 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5513 | struct nfs_openres *res) | |
1da177e4 | 5514 | { |
05d564fe AA |
5515 | struct compound_hdr hdr; |
5516 | int status; | |
5517 | ||
bf269551 | 5518 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5519 | if (status) |
5520 | goto out; | |
bf269551 | 5521 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
5522 | if (status) |
5523 | goto out; | |
bf269551 | 5524 | status = decode_putfh(xdr); |
05d564fe AA |
5525 | if (status) |
5526 | goto out; | |
bf269551 | 5527 | status = decode_savefh(xdr); |
05d564fe AA |
5528 | if (status) |
5529 | goto out; | |
bf269551 | 5530 | status = decode_open(xdr, res); |
56ae19f3 TM |
5531 | if (status) |
5532 | goto out; | |
bf269551 | 5533 | if (decode_getfh(xdr, &res->fh) != 0) |
1da177e4 | 5534 | goto out; |
bf269551 | 5535 | if (decode_getfattr(xdr, res->f_attr, res->server, |
80e52ace | 5536 | !RPC_IS_ASYNC(rqstp->rq_task)) != 0) |
56ae19f3 | 5537 | goto out; |
bf269551 | 5538 | if (decode_restorefh(xdr) != 0) |
56ae19f3 | 5539 | goto out; |
bf269551 | 5540 | decode_getfattr(xdr, res->dir_attr, res->server, |
80e52ace | 5541 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 | 5542 | out: |
05d564fe | 5543 | return status; |
1da177e4 LT |
5544 | } |
5545 | ||
5546 | /* | |
5547 | * Decode OPEN_CONFIRM response | |
5548 | */ | |
bf269551 CL |
5549 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, |
5550 | struct xdr_stream *xdr, | |
5551 | struct nfs_open_confirmres *res) | |
1da177e4 | 5552 | { |
05d564fe AA |
5553 | struct compound_hdr hdr; |
5554 | int status; | |
5555 | ||
bf269551 | 5556 | status = decode_compound_hdr(xdr, &hdr); |
05d564fe AA |
5557 | if (status) |
5558 | goto out; | |
bf269551 | 5559 | status = decode_putfh(xdr); |
05d564fe AA |
5560 | if (status) |
5561 | goto out; | |
bf269551 | 5562 | status = decode_open_confirm(xdr, res); |
1da177e4 | 5563 | out: |
05d564fe | 5564 | return status; |
1da177e4 LT |
5565 | } |
5566 | ||
5567 | /* | |
5568 | * Decode OPEN response | |
5569 | */ | |
bf269551 CL |
5570 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, |
5571 | struct xdr_stream *xdr, | |
5572 | struct nfs_openres *res) | |
1da177e4 | 5573 | { |
05d564fe AA |
5574 | struct compound_hdr hdr; |
5575 | int status; | |
5576 | ||
bf269551 | 5577 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5578 | if (status) |
5579 | goto out; | |
bf269551 | 5580 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
5581 | if (status) |
5582 | goto out; | |
bf269551 | 5583 | status = decode_putfh(xdr); |
05d564fe AA |
5584 | if (status) |
5585 | goto out; | |
bf269551 | 5586 | status = decode_open(xdr, res); |
05d564fe AA |
5587 | if (status) |
5588 | goto out; | |
bf269551 | 5589 | decode_getfattr(xdr, res->f_attr, res->server, |
80e52ace | 5590 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 | 5591 | out: |
05d564fe | 5592 | return status; |
1da177e4 LT |
5593 | } |
5594 | ||
5595 | /* | |
5596 | * Decode SETATTR response | |
5597 | */ | |
bf269551 CL |
5598 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, |
5599 | struct xdr_stream *xdr, | |
5600 | struct nfs_setattrres *res) | |
1da177e4 | 5601 | { |
05d564fe AA |
5602 | struct compound_hdr hdr; |
5603 | int status; | |
5604 | ||
bf269551 | 5605 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5606 | if (status) |
5607 | goto out; | |
bf269551 | 5608 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
05d564fe AA |
5609 | if (status) |
5610 | goto out; | |
bf269551 | 5611 | status = decode_putfh(xdr); |
05d564fe AA |
5612 | if (status) |
5613 | goto out; | |
bf269551 | 5614 | status = decode_setattr(xdr); |
05d564fe AA |
5615 | if (status) |
5616 | goto out; | |
bf269551 | 5617 | decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5618 | !RPC_IS_ASYNC(rqstp->rq_task)); |
1da177e4 | 5619 | out: |
05d564fe | 5620 | return status; |
1da177e4 LT |
5621 | } |
5622 | ||
5623 | /* | |
5624 | * Decode LOCK response | |
5625 | */ | |
bf269551 CL |
5626 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5627 | struct nfs_lock_res *res) | |
1da177e4 | 5628 | { |
1da177e4 LT |
5629 | struct compound_hdr hdr; |
5630 | int status; | |
5631 | ||
bf269551 | 5632 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5633 | if (status) |
5634 | goto out; | |
bf269551 | 5635 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5636 | if (status) |
5637 | goto out; | |
bf269551 | 5638 | status = decode_putfh(xdr); |
1da177e4 LT |
5639 | if (status) |
5640 | goto out; | |
bf269551 | 5641 | status = decode_lock(xdr, res); |
1da177e4 LT |
5642 | out: |
5643 | return status; | |
5644 | } | |
5645 | ||
5646 | /* | |
5647 | * Decode LOCKT response | |
5648 | */ | |
bf269551 CL |
5649 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5650 | struct nfs_lockt_res *res) | |
1da177e4 | 5651 | { |
1da177e4 LT |
5652 | struct compound_hdr hdr; |
5653 | int status; | |
5654 | ||
bf269551 | 5655 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5656 | if (status) |
5657 | goto out; | |
bf269551 | 5658 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5659 | if (status) |
5660 | goto out; | |
bf269551 | 5661 | status = decode_putfh(xdr); |
1da177e4 LT |
5662 | if (status) |
5663 | goto out; | |
bf269551 | 5664 | status = decode_lockt(xdr, res); |
1da177e4 LT |
5665 | out: |
5666 | return status; | |
5667 | } | |
5668 | ||
5669 | /* | |
5670 | * Decode LOCKU response | |
5671 | */ | |
bf269551 CL |
5672 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5673 | struct nfs_locku_res *res) | |
1da177e4 | 5674 | { |
1da177e4 LT |
5675 | struct compound_hdr hdr; |
5676 | int status; | |
5677 | ||
bf269551 | 5678 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5679 | if (status) |
5680 | goto out; | |
bf269551 | 5681 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5682 | if (status) |
5683 | goto out; | |
bf269551 | 5684 | status = decode_putfh(xdr); |
1da177e4 LT |
5685 | if (status) |
5686 | goto out; | |
bf269551 | 5687 | status = decode_locku(xdr, res); |
1da177e4 LT |
5688 | out: |
5689 | return status; | |
5690 | } | |
5691 | ||
bf269551 CL |
5692 | static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, |
5693 | struct xdr_stream *xdr, void *dummy) | |
d3c7b7cc | 5694 | { |
d3c7b7cc TM |
5695 | struct compound_hdr hdr; |
5696 | int status; | |
5697 | ||
bf269551 | 5698 | status = decode_compound_hdr(xdr, &hdr); |
d3c7b7cc | 5699 | if (!status) |
bf269551 | 5700 | status = decode_release_lockowner(xdr); |
d3c7b7cc TM |
5701 | return status; |
5702 | } | |
5703 | ||
1da177e4 LT |
5704 | /* |
5705 | * Decode READLINK response | |
5706 | */ | |
bf269551 CL |
5707 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, |
5708 | struct xdr_stream *xdr, | |
f50c7000 | 5709 | struct nfs4_readlink_res *res) |
1da177e4 | 5710 | { |
1da177e4 LT |
5711 | struct compound_hdr hdr; |
5712 | int status; | |
5713 | ||
bf269551 | 5714 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5715 | if (status) |
5716 | goto out; | |
bf269551 | 5717 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5718 | if (status) |
5719 | goto out; | |
bf269551 | 5720 | status = decode_putfh(xdr); |
1da177e4 LT |
5721 | if (status) |
5722 | goto out; | |
bf269551 | 5723 | status = decode_readlink(xdr, rqstp); |
1da177e4 LT |
5724 | out: |
5725 | return status; | |
5726 | } | |
5727 | ||
5728 | /* | |
5729 | * Decode READDIR response | |
5730 | */ | |
bf269551 CL |
5731 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5732 | struct nfs4_readdir_res *res) | |
1da177e4 | 5733 | { |
1da177e4 LT |
5734 | struct compound_hdr hdr; |
5735 | int status; | |
5736 | ||
bf269551 | 5737 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5738 | if (status) |
5739 | goto out; | |
bf269551 | 5740 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5741 | if (status) |
5742 | goto out; | |
bf269551 | 5743 | status = decode_putfh(xdr); |
1da177e4 LT |
5744 | if (status) |
5745 | goto out; | |
bf269551 | 5746 | status = decode_readdir(xdr, rqstp, res); |
1da177e4 LT |
5747 | out: |
5748 | return status; | |
5749 | } | |
5750 | ||
5751 | /* | |
5752 | * Decode Read response | |
5753 | */ | |
bf269551 CL |
5754 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5755 | struct nfs_readres *res) | |
1da177e4 | 5756 | { |
1da177e4 LT |
5757 | struct compound_hdr hdr; |
5758 | int status; | |
5759 | ||
bf269551 | 5760 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5761 | if (status) |
5762 | goto out; | |
bf269551 | 5763 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5764 | if (status) |
5765 | goto out; | |
bf269551 | 5766 | status = decode_putfh(xdr); |
1da177e4 LT |
5767 | if (status) |
5768 | goto out; | |
bf269551 | 5769 | status = decode_read(xdr, rqstp, res); |
1da177e4 LT |
5770 | if (!status) |
5771 | status = res->count; | |
5772 | out: | |
5773 | return status; | |
5774 | } | |
5775 | ||
5776 | /* | |
5777 | * Decode WRITE response | |
5778 | */ | |
bf269551 CL |
5779 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5780 | struct nfs_writeres *res) | |
1da177e4 | 5781 | { |
1da177e4 LT |
5782 | struct compound_hdr hdr; |
5783 | int status; | |
5784 | ||
bf269551 | 5785 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5786 | if (status) |
5787 | goto out; | |
bf269551 | 5788 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5789 | if (status) |
5790 | goto out; | |
bf269551 | 5791 | status = decode_putfh(xdr); |
1da177e4 LT |
5792 | if (status) |
5793 | goto out; | |
bf269551 | 5794 | status = decode_write(xdr, res); |
4f9838c7 TM |
5795 | if (status) |
5796 | goto out; | |
7ffd1064 FI |
5797 | if (res->fattr) |
5798 | decode_getfattr(xdr, res->fattr, res->server, | |
5799 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5800 | if (!status) |
5801 | status = res->count; | |
5802 | out: | |
5803 | return status; | |
5804 | } | |
5805 | ||
5806 | /* | |
5807 | * Decode COMMIT response | |
5808 | */ | |
bf269551 CL |
5809 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5810 | struct nfs_writeres *res) | |
1da177e4 | 5811 | { |
1da177e4 LT |
5812 | struct compound_hdr hdr; |
5813 | int status; | |
5814 | ||
bf269551 | 5815 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5816 | if (status) |
5817 | goto out; | |
bf269551 | 5818 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
1da177e4 LT |
5819 | if (status) |
5820 | goto out; | |
bf269551 | 5821 | status = decode_putfh(xdr); |
1da177e4 LT |
5822 | if (status) |
5823 | goto out; | |
bf269551 | 5824 | status = decode_commit(xdr, res); |
4f9838c7 TM |
5825 | if (status) |
5826 | goto out; | |
988b6dce FI |
5827 | if (res->fattr) |
5828 | decode_getfattr(xdr, res->fattr, res->server, | |
5829 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
1da177e4 LT |
5830 | out: |
5831 | return status; | |
5832 | } | |
5833 | ||
5834 | /* | |
8b173218 | 5835 | * Decode FSINFO response |
1da177e4 | 5836 | */ |
bf269551 | 5837 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, |
3dda5e43 | 5838 | struct nfs4_fsinfo_res *res) |
1da177e4 | 5839 | { |
1da177e4 LT |
5840 | struct compound_hdr hdr; |
5841 | int status; | |
5842 | ||
bf269551 | 5843 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc | 5844 | if (!status) |
bf269551 | 5845 | status = decode_sequence(xdr, &res->seq_res, req); |
1da177e4 | 5846 | if (!status) |
bf269551 | 5847 | status = decode_putfh(xdr); |
1da177e4 | 5848 | if (!status) |
bf269551 | 5849 | status = decode_fsinfo(xdr, res->fsinfo); |
1da177e4 LT |
5850 | return status; |
5851 | } | |
5852 | ||
5853 | /* | |
8b173218 | 5854 | * Decode PATHCONF response |
1da177e4 | 5855 | */ |
bf269551 | 5856 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, |
d45b2989 | 5857 | struct nfs4_pathconf_res *res) |
1da177e4 | 5858 | { |
1da177e4 LT |
5859 | struct compound_hdr hdr; |
5860 | int status; | |
5861 | ||
bf269551 | 5862 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc | 5863 | if (!status) |
bf269551 | 5864 | status = decode_sequence(xdr, &res->seq_res, req); |
1da177e4 | 5865 | if (!status) |
bf269551 | 5866 | status = decode_putfh(xdr); |
1da177e4 | 5867 | if (!status) |
bf269551 | 5868 | status = decode_pathconf(xdr, res->pathconf); |
1da177e4 LT |
5869 | return status; |
5870 | } | |
5871 | ||
5872 | /* | |
8b173218 | 5873 | * Decode STATFS response |
1da177e4 | 5874 | */ |
bf269551 | 5875 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, |
24ad148a | 5876 | struct nfs4_statfs_res *res) |
1da177e4 | 5877 | { |
1da177e4 LT |
5878 | struct compound_hdr hdr; |
5879 | int status; | |
5880 | ||
bf269551 | 5881 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc | 5882 | if (!status) |
bf269551 | 5883 | status = decode_sequence(xdr, &res->seq_res, req); |
1da177e4 | 5884 | if (!status) |
bf269551 | 5885 | status = decode_putfh(xdr); |
1da177e4 | 5886 | if (!status) |
bf269551 | 5887 | status = decode_statfs(xdr, res->fsstat); |
1da177e4 LT |
5888 | return status; |
5889 | } | |
5890 | ||
5891 | /* | |
8b173218 | 5892 | * Decode GETATTR_BITMAP response |
1da177e4 | 5893 | */ |
bf269551 CL |
5894 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, |
5895 | struct xdr_stream *xdr, | |
5896 | struct nfs4_server_caps_res *res) | |
1da177e4 | 5897 | { |
1da177e4 LT |
5898 | struct compound_hdr hdr; |
5899 | int status; | |
5900 | ||
bf269551 | 5901 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5902 | if (status) |
5903 | goto out; | |
bf269551 | 5904 | status = decode_sequence(xdr, &res->seq_res, req); |
9b7b9fcc | 5905 | if (status) |
1da177e4 | 5906 | goto out; |
bf269551 CL |
5907 | status = decode_putfh(xdr); |
5908 | if (status) | |
1da177e4 | 5909 | goto out; |
bf269551 | 5910 | status = decode_server_caps(xdr, res); |
1da177e4 LT |
5911 | out: |
5912 | return status; | |
5913 | } | |
5914 | ||
5915 | /* | |
5916 | * Decode RENEW response | |
5917 | */ | |
bf269551 CL |
5918 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, |
5919 | void *__unused) | |
1da177e4 | 5920 | { |
1da177e4 LT |
5921 | struct compound_hdr hdr; |
5922 | int status; | |
5923 | ||
bf269551 | 5924 | status = decode_compound_hdr(xdr, &hdr); |
1da177e4 | 5925 | if (!status) |
bf269551 | 5926 | status = decode_renew(xdr); |
1da177e4 LT |
5927 | return status; |
5928 | } | |
5929 | ||
5930 | /* | |
8b173218 | 5931 | * Decode SETCLIENTID response |
1da177e4 | 5932 | */ |
bf269551 CL |
5933 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, |
5934 | struct xdr_stream *xdr, | |
5935 | struct nfs4_setclientid_res *res) | |
1da177e4 | 5936 | { |
1da177e4 LT |
5937 | struct compound_hdr hdr; |
5938 | int status; | |
5939 | ||
bf269551 | 5940 | status = decode_compound_hdr(xdr, &hdr); |
1da177e4 | 5941 | if (!status) |
bf269551 | 5942 | status = decode_setclientid(xdr, res); |
1da177e4 LT |
5943 | return status; |
5944 | } | |
5945 | ||
5946 | /* | |
8b173218 | 5947 | * Decode SETCLIENTID_CONFIRM response |
1da177e4 | 5948 | */ |
bf269551 CL |
5949 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, |
5950 | struct xdr_stream *xdr, | |
5951 | struct nfs_fsinfo *fsinfo) | |
1da177e4 | 5952 | { |
1da177e4 LT |
5953 | struct compound_hdr hdr; |
5954 | int status; | |
5955 | ||
bf269551 | 5956 | status = decode_compound_hdr(xdr, &hdr); |
1da177e4 | 5957 | if (!status) |
bf269551 | 5958 | status = decode_setclientid_confirm(xdr); |
1da177e4 | 5959 | if (!status) |
bf269551 | 5960 | status = decode_putrootfh(xdr); |
1da177e4 | 5961 | if (!status) |
bf269551 | 5962 | status = decode_fsinfo(xdr, fsinfo); |
1da177e4 LT |
5963 | return status; |
5964 | } | |
5965 | ||
5966 | /* | |
8b173218 | 5967 | * Decode DELEGRETURN response |
1da177e4 | 5968 | */ |
bf269551 CL |
5969 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, |
5970 | struct xdr_stream *xdr, | |
5971 | struct nfs4_delegreturnres *res) | |
1da177e4 | 5972 | { |
1da177e4 LT |
5973 | struct compound_hdr hdr; |
5974 | int status; | |
5975 | ||
bf269551 | 5976 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
5977 | if (status) |
5978 | goto out; | |
bf269551 | 5979 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
9b7b9fcc | 5980 | if (status) |
fa178f29 | 5981 | goto out; |
bf269551 | 5982 | status = decode_putfh(xdr); |
fa178f29 TM |
5983 | if (status != 0) |
5984 | goto out; | |
bf269551 | 5985 | status = decode_delegreturn(xdr); |
556ae3bb JL |
5986 | if (status != 0) |
5987 | goto out; | |
bf269551 | 5988 | decode_getfattr(xdr, res->fattr, res->server, |
80e52ace | 5989 | !RPC_IS_ASYNC(rqstp->rq_task)); |
fa178f29 | 5990 | out: |
1da177e4 LT |
5991 | return status; |
5992 | } | |
5993 | ||
683b57b4 | 5994 | /* |
8b173218 | 5995 | * Decode FS_LOCATIONS response |
683b57b4 | 5996 | */ |
bf269551 CL |
5997 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, |
5998 | struct xdr_stream *xdr, | |
22958463 | 5999 | struct nfs4_fs_locations_res *res) |
683b57b4 | 6000 | { |
683b57b4 TM |
6001 | struct compound_hdr hdr; |
6002 | int status; | |
6003 | ||
bf269551 | 6004 | status = decode_compound_hdr(xdr, &hdr); |
9b7b9fcc AA |
6005 | if (status) |
6006 | goto out; | |
bf269551 | 6007 | status = decode_sequence(xdr, &res->seq_res, req); |
9b7b9fcc | 6008 | if (status) |
683b57b4 | 6009 | goto out; |
bf269551 CL |
6010 | status = decode_putfh(xdr); |
6011 | if (status) | |
683b57b4 | 6012 | goto out; |
bf269551 CL |
6013 | status = decode_lookup(xdr); |
6014 | if (status) | |
683b57b4 | 6015 | goto out; |
bf269551 CL |
6016 | xdr_enter_page(xdr, PAGE_SIZE); |
6017 | status = decode_getfattr(xdr, &res->fs_locations->fattr, | |
80e52ace TM |
6018 | res->fs_locations->server, |
6019 | !RPC_IS_ASYNC(req->rq_task)); | |
683b57b4 TM |
6020 | out: |
6021 | return status; | |
6022 | } | |
6023 | ||
99fe60d0 BH |
6024 | #if defined(CONFIG_NFS_V4_1) |
6025 | /* | |
8b173218 | 6026 | * Decode EXCHANGE_ID response |
99fe60d0 | 6027 | */ |
bf269551 CL |
6028 | static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, |
6029 | struct xdr_stream *xdr, | |
99fe60d0 BH |
6030 | void *res) |
6031 | { | |
99fe60d0 BH |
6032 | struct compound_hdr hdr; |
6033 | int status; | |
6034 | ||
bf269551 | 6035 | status = decode_compound_hdr(xdr, &hdr); |
99fe60d0 | 6036 | if (!status) |
bf269551 | 6037 | status = decode_exchange_id(xdr, res); |
99fe60d0 BH |
6038 | return status; |
6039 | } | |
2050f0cc | 6040 | |
fc931582 | 6041 | /* |
8b173218 | 6042 | * Decode CREATE_SESSION response |
fc931582 | 6043 | */ |
bf269551 CL |
6044 | static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, |
6045 | struct xdr_stream *xdr, | |
fc931582 AA |
6046 | struct nfs41_create_session_res *res) |
6047 | { | |
fc931582 AA |
6048 | struct compound_hdr hdr; |
6049 | int status; | |
6050 | ||
bf269551 | 6051 | status = decode_compound_hdr(xdr, &hdr); |
fc931582 | 6052 | if (!status) |
bf269551 | 6053 | status = decode_create_session(xdr, res); |
fc931582 AA |
6054 | return status; |
6055 | } | |
6056 | ||
0f3e66c6 | 6057 | /* |
8b173218 | 6058 | * Decode DESTROY_SESSION response |
0f3e66c6 | 6059 | */ |
bf269551 CL |
6060 | static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, |
6061 | struct xdr_stream *xdr, | |
6062 | void *res) | |
0f3e66c6 | 6063 | { |
0f3e66c6 AA |
6064 | struct compound_hdr hdr; |
6065 | int status; | |
6066 | ||
bf269551 | 6067 | status = decode_compound_hdr(xdr, &hdr); |
0f3e66c6 | 6068 | if (!status) |
bf269551 | 6069 | status = decode_destroy_session(xdr, res); |
0f3e66c6 AA |
6070 | return status; |
6071 | } | |
6072 | ||
fc01cea9 | 6073 | /* |
8b173218 | 6074 | * Decode SEQUENCE response |
fc01cea9 | 6075 | */ |
bf269551 CL |
6076 | static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, |
6077 | struct xdr_stream *xdr, | |
fc01cea9 AA |
6078 | struct nfs4_sequence_res *res) |
6079 | { | |
fc01cea9 AA |
6080 | struct compound_hdr hdr; |
6081 | int status; | |
6082 | ||
bf269551 | 6083 | status = decode_compound_hdr(xdr, &hdr); |
fc01cea9 | 6084 | if (!status) |
bf269551 | 6085 | status = decode_sequence(xdr, res, rqstp); |
fc01cea9 AA |
6086 | return status; |
6087 | } | |
6088 | ||
2050f0cc | 6089 | /* |
8b173218 | 6090 | * Decode GET_LEASE_TIME response |
2050f0cc | 6091 | */ |
bf269551 CL |
6092 | static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, |
6093 | struct xdr_stream *xdr, | |
2050f0cc AA |
6094 | struct nfs4_get_lease_time_res *res) |
6095 | { | |
2050f0cc AA |
6096 | struct compound_hdr hdr; |
6097 | int status; | |
6098 | ||
bf269551 | 6099 | status = decode_compound_hdr(xdr, &hdr); |
2050f0cc | 6100 | if (!status) |
bf269551 | 6101 | status = decode_sequence(xdr, &res->lr_seq_res, rqstp); |
2050f0cc | 6102 | if (!status) |
bf269551 | 6103 | status = decode_putrootfh(xdr); |
2050f0cc | 6104 | if (!status) |
bf269551 | 6105 | status = decode_fsinfo(xdr, res->lr_fsinfo); |
2050f0cc AA |
6106 | return status; |
6107 | } | |
18019753 RL |
6108 | |
6109 | /* | |
6110 | * Decode RECLAIM_COMPLETE response | |
6111 | */ | |
bf269551 CL |
6112 | static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, |
6113 | struct xdr_stream *xdr, | |
18019753 RL |
6114 | struct nfs41_reclaim_complete_res *res) |
6115 | { | |
18019753 RL |
6116 | struct compound_hdr hdr; |
6117 | int status; | |
6118 | ||
bf269551 | 6119 | status = decode_compound_hdr(xdr, &hdr); |
18019753 | 6120 | if (!status) |
bf269551 | 6121 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
18019753 | 6122 | if (!status) |
bf269551 | 6123 | status = decode_reclaim_complete(xdr, (void *)NULL); |
18019753 RL |
6124 | return status; |
6125 | } | |
b1f69b75 AA |
6126 | |
6127 | /* | |
6128 | * Decode GETDEVINFO response | |
6129 | */ | |
bf269551 CL |
6130 | static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, |
6131 | struct xdr_stream *xdr, | |
b1f69b75 AA |
6132 | struct nfs4_getdeviceinfo_res *res) |
6133 | { | |
b1f69b75 AA |
6134 | struct compound_hdr hdr; |
6135 | int status; | |
6136 | ||
bf269551 | 6137 | status = decode_compound_hdr(xdr, &hdr); |
b1f69b75 AA |
6138 | if (status != 0) |
6139 | goto out; | |
bf269551 | 6140 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
b1f69b75 AA |
6141 | if (status != 0) |
6142 | goto out; | |
bf269551 | 6143 | status = decode_getdeviceinfo(xdr, res->pdev); |
b1f69b75 AA |
6144 | out: |
6145 | return status; | |
6146 | } | |
6147 | ||
6148 | /* | |
6149 | * Decode LAYOUTGET response | |
6150 | */ | |
bf269551 CL |
6151 | static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, |
6152 | struct xdr_stream *xdr, | |
b1f69b75 AA |
6153 | struct nfs4_layoutget_res *res) |
6154 | { | |
b1f69b75 AA |
6155 | struct compound_hdr hdr; |
6156 | int status; | |
6157 | ||
bf269551 | 6158 | status = decode_compound_hdr(xdr, &hdr); |
b1f69b75 AA |
6159 | if (status) |
6160 | goto out; | |
bf269551 | 6161 | status = decode_sequence(xdr, &res->seq_res, rqstp); |
b1f69b75 AA |
6162 | if (status) |
6163 | goto out; | |
bf269551 | 6164 | status = decode_putfh(xdr); |
b1f69b75 AA |
6165 | if (status) |
6166 | goto out; | |
bf269551 | 6167 | status = decode_layoutget(xdr, rqstp, res); |
b1f69b75 AA |
6168 | out: |
6169 | return status; | |
6170 | } | |
863a3c6c AA |
6171 | |
6172 | /* | |
6173 | * Decode LAYOUTCOMMIT response | |
6174 | */ | |
6175 | static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, | |
6176 | struct xdr_stream *xdr, | |
6177 | struct nfs4_layoutcommit_res *res) | |
6178 | { | |
6179 | struct compound_hdr hdr; | |
6180 | int status; | |
6181 | ||
6182 | status = decode_compound_hdr(xdr, &hdr); | |
6183 | if (status) | |
6184 | goto out; | |
6185 | status = decode_sequence(xdr, &res->seq_res, rqstp); | |
6186 | if (status) | |
6187 | goto out; | |
6188 | status = decode_putfh(xdr); | |
6189 | if (status) | |
6190 | goto out; | |
6191 | status = decode_layoutcommit(xdr, rqstp, res); | |
6192 | if (status) | |
6193 | goto out; | |
6194 | decode_getfattr(xdr, res->fattr, res->server, | |
6195 | !RPC_IS_ASYNC(rqstp->rq_task)); | |
6196 | out: | |
6197 | return status; | |
6198 | } | |
99fe60d0 BH |
6199 | #endif /* CONFIG_NFS_V4_1 */ |
6200 | ||
573c4e1e CL |
6201 | /** |
6202 | * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in | |
6203 | * the local page cache. | |
6204 | * @xdr: XDR stream where entry resides | |
6205 | * @entry: buffer to fill in with entry data | |
6206 | * @plus: boolean indicating whether this should be a readdirplus entry | |
6207 | * | |
6208 | * Returns zero if successful, otherwise a negative errno value is | |
6209 | * returned. | |
6210 | * | |
6211 | * This function is not invoked during READDIR reply decoding, but | |
6212 | * rather whenever an application invokes the getdents(2) system call | |
6213 | * on a directory already in our cache. | |
6214 | */ | |
6215 | int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, | |
6216 | int plus) | |
1da177e4 LT |
6217 | { |
6218 | uint32_t bitmap[2] = {0}; | |
6219 | uint32_t len; | |
babddc72 BS |
6220 | __be32 *p = xdr_inline_decode(xdr, 4); |
6221 | if (unlikely(!p)) | |
6222 | goto out_overflow; | |
c08e76d0 | 6223 | if (*p == xdr_zero) { |
babddc72 BS |
6224 | p = xdr_inline_decode(xdr, 4); |
6225 | if (unlikely(!p)) | |
6226 | goto out_overflow; | |
c08e76d0 | 6227 | if (*p == xdr_zero) |
573c4e1e | 6228 | return -EAGAIN; |
1da177e4 | 6229 | entry->eof = 1; |
573c4e1e | 6230 | return -EBADCOOKIE; |
1da177e4 LT |
6231 | } |
6232 | ||
babddc72 BS |
6233 | p = xdr_inline_decode(xdr, 12); |
6234 | if (unlikely(!p)) | |
6235 | goto out_overflow; | |
1da177e4 LT |
6236 | entry->prev_cookie = entry->cookie; |
6237 | p = xdr_decode_hyper(p, &entry->cookie); | |
c08e76d0 | 6238 | entry->len = be32_to_cpup(p); |
babddc72 | 6239 | |
9af8c222 | 6240 | p = xdr_inline_decode(xdr, entry->len); |
babddc72 BS |
6241 | if (unlikely(!p)) |
6242 | goto out_overflow; | |
1da177e4 | 6243 | entry->name = (const char *) p; |
1da177e4 LT |
6244 | |
6245 | /* | |
6246 | * In case the server doesn't return an inode number, | |
6247 | * we fake one here. (We don't use inode number 0, | |
6248 | * since glibc seems to choke on it...) | |
6249 | */ | |
6250 | entry->ino = 1; | |
4f082222 | 6251 | entry->fattr->valid = 0; |
1da177e4 | 6252 | |
9af8c222 TM |
6253 | if (decode_attr_bitmap(xdr, bitmap) < 0) |
6254 | goto out_overflow; | |
6255 | ||
6256 | if (decode_attr_length(xdr, &len, &p) < 0) | |
6257 | goto out_overflow; | |
6258 | ||
573c4e1e CL |
6259 | if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, |
6260 | entry->server, 1) < 0) | |
9af8c222 TM |
6261 | goto out_overflow; |
6262 | if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) | |
6263 | entry->ino = entry->fattr->fileid; | |
6264 | ||
0b26a0bf TM |
6265 | entry->d_type = DT_UNKNOWN; |
6266 | if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) | |
6267 | entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); | |
6268 | ||
573c4e1e | 6269 | return 0; |
babddc72 BS |
6270 | |
6271 | out_overflow: | |
6272 | print_overflow_msg(__func__, xdr); | |
573c4e1e | 6273 | return -EAGAIN; |
1da177e4 LT |
6274 | } |
6275 | ||
6276 | /* | |
6277 | * We need to translate between nfs status return values and | |
6278 | * the local errno values which may not be the same. | |
6279 | */ | |
6280 | static struct { | |
6281 | int stat; | |
6282 | int errno; | |
6283 | } nfs_errtbl[] = { | |
6284 | { NFS4_OK, 0 }, | |
856dff3d BH |
6285 | { NFS4ERR_PERM, -EPERM }, |
6286 | { NFS4ERR_NOENT, -ENOENT }, | |
6287 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
6288 | { NFS4ERR_NXIO, -ENXIO }, | |
6289 | { NFS4ERR_ACCESS, -EACCES }, | |
6290 | { NFS4ERR_EXIST, -EEXIST }, | |
6291 | { NFS4ERR_XDEV, -EXDEV }, | |
6292 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
6293 | { NFS4ERR_ISDIR, -EISDIR }, | |
6294 | { NFS4ERR_INVAL, -EINVAL }, | |
6295 | { NFS4ERR_FBIG, -EFBIG }, | |
6296 | { NFS4ERR_NOSPC, -ENOSPC }, | |
6297 | { NFS4ERR_ROFS, -EROFS }, | |
6298 | { NFS4ERR_MLINK, -EMLINK }, | |
6299 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
6300 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
6301 | { NFS4ERR_DQUOT, -EDQUOT }, | |
6302 | { NFS4ERR_STALE, -ESTALE }, | |
6303 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
856dff3d BH |
6304 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, |
6305 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
6306 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
fdcb4577 | 6307 | { NFS4ERR_SERVERFAULT, -EREMOTEIO }, |
856dff3d BH |
6308 | { NFS4ERR_BADTYPE, -EBADTYPE }, |
6309 | { NFS4ERR_LOCKED, -EAGAIN }, | |
856dff3d BH |
6310 | { NFS4ERR_SYMLINK, -ELOOP }, |
6311 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
6312 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
6313 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
6314 | * to be handled by a |
6315 | * middle-layer. | |
6316 | */ | |
856dff3d | 6317 | { -1, -EIO } |
1da177e4 LT |
6318 | }; |
6319 | ||
6320 | /* | |
6321 | * Convert an NFS error code to a local one. | |
6322 | * This one is used jointly by NFSv2 and NFSv3. | |
6323 | */ | |
6324 | static int | |
0a8ea437 | 6325 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
6326 | { |
6327 | int i; | |
6328 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
6329 | if (nfs_errtbl[i].stat == stat) | |
6330 | return nfs_errtbl[i].errno; | |
6331 | } | |
6332 | if (stat <= 10000 || stat > 10100) { | |
6333 | /* The server is looney tunes. */ | |
fdcb4577 | 6334 | return -EREMOTEIO; |
1da177e4 LT |
6335 | } |
6336 | /* If we cannot translate the error, the recovery routines should | |
6337 | * handle it. | |
6338 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
6339 | * not conflict with native Linux error codes. | |
6340 | */ | |
856dff3d | 6341 | return -stat; |
1da177e4 LT |
6342 | } |
6343 | ||
1da177e4 LT |
6344 | #define PROC(proc, argtype, restype) \ |
6345 | [NFSPROC4_CLNT_##proc] = { \ | |
6346 | .p_proc = NFSPROC4_COMPOUND, \ | |
9f06c719 | 6347 | .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ |
bf269551 | 6348 | .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ |
2bea90d4 CL |
6349 | .p_arglen = NFS4_##argtype##_sz, \ |
6350 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
6351 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
6352 | .p_name = #proc, \ | |
05d564fe | 6353 | } |
1da177e4 LT |
6354 | |
6355 | struct rpc_procinfo nfs4_procedures[] = { | |
7d93bd71 CL |
6356 | PROC(READ, enc_read, dec_read), |
6357 | PROC(WRITE, enc_write, dec_write), | |
6358 | PROC(COMMIT, enc_commit, dec_commit), | |
6359 | PROC(OPEN, enc_open, dec_open), | |
6360 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
6361 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
6362 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
6363 | PROC(CLOSE, enc_close, dec_close), | |
6364 | PROC(SETATTR, enc_setattr, dec_setattr), | |
6365 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
6366 | PROC(RENEW, enc_renew, dec_renew), | |
6367 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
6368 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
6369 | PROC(LOCK, enc_lock, dec_lock), | |
6370 | PROC(LOCKT, enc_lockt, dec_lockt), | |
6371 | PROC(LOCKU, enc_locku, dec_locku), | |
6372 | PROC(ACCESS, enc_access, dec_access), | |
6373 | PROC(GETATTR, enc_getattr, dec_getattr), | |
6374 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
6375 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
6376 | PROC(REMOVE, enc_remove, dec_remove), | |
6377 | PROC(RENAME, enc_rename, dec_rename), | |
6378 | PROC(LINK, enc_link, dec_link), | |
6379 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
6380 | PROC(CREATE, enc_create, dec_create), | |
6381 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
6382 | PROC(STATFS, enc_statfs, dec_statfs), | |
6383 | PROC(READLINK, enc_readlink, dec_readlink), | |
6384 | PROC(READDIR, enc_readdir, dec_readdir), | |
6385 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
6386 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
6387 | PROC(GETACL, enc_getacl, dec_getacl), | |
6388 | PROC(SETACL, enc_setacl, dec_setacl), | |
6389 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), | |
6390 | PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), | |
99fe60d0 | 6391 | #if defined(CONFIG_NFS_V4_1) |
7d93bd71 CL |
6392 | PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), |
6393 | PROC(CREATE_SESSION, enc_create_session, dec_create_session), | |
6394 | PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), | |
6395 | PROC(SEQUENCE, enc_sequence, dec_sequence), | |
6396 | PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), | |
6397 | PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), | |
6398 | PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), | |
6399 | PROC(LAYOUTGET, enc_layoutget, dec_layoutget), | |
863a3c6c | 6400 | PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), |
99fe60d0 | 6401 | #endif /* CONFIG_NFS_V4_1 */ |
1da177e4 LT |
6402 | }; |
6403 | ||
6404 | struct rpc_version nfs_version4 = { | |
6405 | .number = 4, | |
e8c96f8c | 6406 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
6407 | .procs = nfs4_procedures |
6408 | }; | |
6409 | ||
6410 | /* | |
6411 | * Local variables: | |
6412 | * c-basic-offset: 8 | |
6413 | * End: | |
6414 | */ |