Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/utsname.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/string.h> | |
45 | #include <linux/in.h> | |
46 | #include <linux/pagemap.h> | |
47 | #include <linux/proc_fs.h> | |
48 | #include <linux/kdev_t.h> | |
49 | #include <linux/sunrpc/clnt.h> | |
50 | #include <linux/nfs.h> | |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
1da177e4 LT |
55 | |
56 | #define NFSDBG_FACILITY NFSDBG_XDR | |
57 | ||
58 | /* Mapping from NFS error code to "errno" error code. */ | |
59 | #define errno_NFSERR_IO EIO | |
60 | ||
0a8ea437 | 61 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
62 | |
63 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
64 | #ifdef DEBUG | |
65 | #define NFS4_MAXTAGLEN 20 | |
66 | #else | |
67 | #define NFS4_MAXTAGLEN 0 | |
68 | #endif | |
69 | ||
6c0195a4 | 70 | /* lock,open owner id: |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 113 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
119 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
120 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
121 | 1 /* sc_prog */ + \ | |
122 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
124 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
125 | #define decode_setclientid_maxsz \ |
126 | (op_decode_hdr_maxsz + \ | |
127 | 2 + \ | |
128 | 1024) /* large value for CLID_INUSE */ | |
129 | #define encode_setclientid_confirm_maxsz \ | |
130 | (op_encode_hdr_maxsz + \ | |
131 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
132 | #define decode_setclientid_confirm_maxsz \ | |
133 | (op_decode_hdr_maxsz) | |
e6889620 TM |
134 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
135 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
136 | #define encode_share_access_maxsz \ |
137 | (2) | |
9104a55d | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
139 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
140 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
141 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
142 | 2 + encode_share_access_maxsz + 2 + \ | |
143 | open_owner_id_maxsz + \ | |
144 | encode_opentype_maxsz + \ | |
145 | encode_claim_null_maxsz) | |
146 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 147 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
148 | decode_ace_maxsz) |
149 | #define decode_change_info_maxsz (5) | |
150 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 151 | decode_stateid_maxsz + \ |
2cebf828 TM |
152 | decode_change_info_maxsz + 1 + \ |
153 | nfs4_fattr_bitmap_maxsz + \ | |
154 | decode_delegation_maxsz) | |
9104a55d TM |
155 | #define encode_open_confirm_maxsz \ |
156 | (op_encode_hdr_maxsz + \ | |
157 | encode_stateid_maxsz + 1) | |
158 | #define decode_open_confirm_maxsz \ | |
159 | (op_decode_hdr_maxsz + \ | |
160 | decode_stateid_maxsz) | |
161 | #define encode_open_downgrade_maxsz \ | |
162 | (op_encode_hdr_maxsz + \ | |
163 | encode_stateid_maxsz + 1 + \ | |
164 | encode_share_access_maxsz) | |
165 | #define decode_open_downgrade_maxsz \ | |
166 | (op_decode_hdr_maxsz + \ | |
167 | decode_stateid_maxsz) | |
168 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
169 | 1 + encode_stateid_maxsz) | |
170 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
171 | decode_stateid_maxsz) | |
172 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
173 | encode_stateid_maxsz + \ | |
174 | encode_attrs_maxsz) | |
175 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
176 | nfs4_fattr_bitmap_maxsz) | |
177 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
178 | encode_stateid_maxsz + 3) | |
179 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
180 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
181 | 2 + encode_verifier_maxsz + 5) | |
182 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
183 | decode_verifier_maxsz) | |
184 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
185 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
186 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
187 | encode_stateid_maxsz + 4) | |
188 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
189 | 2 + decode_verifier_maxsz) | |
190 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
191 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
192 | decode_verifier_maxsz) | |
1da177e4 LT |
193 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
194 | nfs4_name_maxsz) | |
6ce18391 BH |
195 | #define decode_remove_maxsz (op_decode_hdr_maxsz + \ |
196 | decode_change_info_maxsz) | |
1da177e4 LT |
197 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ |
198 | 2 * nfs4_name_maxsz) | |
6ce18391 BH |
199 | #define decode_rename_maxsz (op_decode_hdr_maxsz + \ |
200 | decode_change_info_maxsz + \ | |
201 | decode_change_info_maxsz) | |
1da177e4 LT |
202 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ |
203 | nfs4_name_maxsz) | |
6ce18391 | 204 | #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) |
9104a55d TM |
205 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
206 | 7 + \ | |
207 | 1 + encode_stateid_maxsz + 8) | |
208 | #define decode_lock_denied_maxsz \ | |
209 | (8 + decode_lockowner_maxsz) | |
210 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
211 | decode_lock_denied_maxsz) | |
212 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
213 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
214 | decode_lock_denied_maxsz) | |
215 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
216 | encode_stateid_maxsz + \ | |
217 | 4) | |
218 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
219 | decode_stateid_maxsz) | |
220 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
221 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
222 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
223 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 224 | 1 + \ |
96928206 | 225 | nfs4_fattr_maxsz) |
1da177e4 LT |
226 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
227 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
228 | 1 + 2 + nfs4_name_maxsz + \ |
229 | encode_attrs_maxsz) | |
2cebf828 TM |
230 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
231 | decode_change_info_maxsz + \ | |
232 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
233 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
234 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
235 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
236 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
237 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
238 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
239 | nfs4_fattr_bitmap_maxsz + 1) | |
240 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
241 | encode_stateid_maxsz + 3) | |
242 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
243 | #define encode_fs_locations_maxsz \ |
244 | (encode_getattr_maxsz) | |
245 | #define decode_fs_locations_maxsz \ | |
246 | (0) | |
1da177e4 LT |
247 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
248 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
249 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
250 | encode_putfh_maxsz + \ | |
9104a55d | 251 | encode_read_maxsz) |
1da177e4 LT |
252 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
253 | decode_putfh_maxsz + \ | |
9104a55d | 254 | decode_read_maxsz) |
1da177e4 LT |
255 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
256 | encode_putfh_maxsz + \ | |
9104a55d | 257 | encode_readlink_maxsz) |
1da177e4 LT |
258 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
259 | decode_putfh_maxsz + \ | |
9104a55d | 260 | decode_readlink_maxsz) |
1da177e4 LT |
261 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
262 | encode_putfh_maxsz + \ | |
9104a55d | 263 | encode_readdir_maxsz) |
1da177e4 LT |
264 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
265 | decode_putfh_maxsz + \ | |
9104a55d | 266 | decode_readdir_maxsz) |
1da177e4 LT |
267 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
268 | encode_putfh_maxsz + \ | |
9104a55d | 269 | encode_write_maxsz + \ |
4f9838c7 | 270 | encode_getattr_maxsz) |
1da177e4 LT |
271 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
272 | decode_putfh_maxsz + \ | |
9104a55d | 273 | decode_write_maxsz + \ |
4f9838c7 | 274 | decode_getattr_maxsz) |
1da177e4 LT |
275 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
276 | encode_putfh_maxsz + \ | |
9104a55d | 277 | encode_commit_maxsz + \ |
4f9838c7 | 278 | encode_getattr_maxsz) |
1da177e4 LT |
279 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
280 | decode_putfh_maxsz + \ | |
9104a55d | 281 | decode_commit_maxsz + \ |
4f9838c7 | 282 | decode_getattr_maxsz) |
1da177e4 | 283 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
2cebf828 TM |
284 | encode_putfh_maxsz + \ |
285 | encode_savefh_maxsz + \ | |
286 | encode_open_maxsz + \ | |
287 | encode_getfh_maxsz + \ | |
288 | encode_getattr_maxsz + \ | |
289 | encode_restorefh_maxsz + \ | |
290 | encode_getattr_maxsz) | |
1da177e4 | 291 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
2cebf828 TM |
292 | decode_putfh_maxsz + \ |
293 | decode_savefh_maxsz + \ | |
294 | decode_open_maxsz + \ | |
295 | decode_getfh_maxsz + \ | |
296 | decode_getattr_maxsz + \ | |
297 | decode_restorefh_maxsz + \ | |
298 | decode_getattr_maxsz) | |
9104a55d TM |
299 | #define NFS4_enc_open_confirm_sz \ |
300 | (compound_encode_hdr_maxsz + \ | |
301 | encode_putfh_maxsz + \ | |
302 | encode_open_confirm_maxsz) | |
303 | #define NFS4_dec_open_confirm_sz \ | |
304 | (compound_decode_hdr_maxsz + \ | |
305 | decode_putfh_maxsz + \ | |
306 | decode_open_confirm_maxsz) | |
1da177e4 LT |
307 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
308 | encode_putfh_maxsz + \ | |
2cebf828 TM |
309 | encode_open_maxsz + \ |
310 | encode_getattr_maxsz) | |
1da177e4 LT |
311 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
312 | decode_putfh_maxsz + \ | |
2cebf828 TM |
313 | decode_open_maxsz + \ |
314 | decode_getattr_maxsz) | |
1da177e4 LT |
315 | #define NFS4_enc_open_downgrade_sz \ |
316 | (compound_encode_hdr_maxsz + \ | |
9104a55d TM |
317 | encode_putfh_maxsz + \ |
318 | encode_open_downgrade_maxsz + \ | |
319 | encode_getattr_maxsz) | |
1da177e4 LT |
320 | #define NFS4_dec_open_downgrade_sz \ |
321 | (compound_decode_hdr_maxsz + \ | |
9104a55d TM |
322 | decode_putfh_maxsz + \ |
323 | decode_open_downgrade_maxsz + \ | |
324 | decode_getattr_maxsz) | |
325 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
326 | encode_putfh_maxsz + \ | |
327 | encode_close_maxsz + \ | |
328 | encode_getattr_maxsz) | |
329 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
330 | decode_putfh_maxsz + \ | |
331 | decode_close_maxsz + \ | |
332 | decode_getattr_maxsz) | |
333 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
334 | encode_putfh_maxsz + \ | |
335 | encode_setattr_maxsz + \ | |
336 | encode_getattr_maxsz) | |
337 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
338 | decode_putfh_maxsz + \ | |
339 | decode_setattr_maxsz + \ | |
340 | decode_getattr_maxsz) | |
1da177e4 LT |
341 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
342 | encode_putfh_maxsz + \ | |
343 | encode_fsinfo_maxsz) | |
344 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
345 | decode_putfh_maxsz + \ | |
346 | decode_fsinfo_maxsz) | |
347 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
348 | encode_renew_maxsz) | |
349 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
350 | decode_renew_maxsz) | |
351 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
352 | encode_setclientid_maxsz) | |
353 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
354 | decode_setclientid_maxsz) | |
355 | #define NFS4_enc_setclientid_confirm_sz \ | |
356 | (compound_encode_hdr_maxsz + \ | |
357 | encode_setclientid_confirm_maxsz + \ | |
358 | encode_putrootfh_maxsz + \ | |
359 | encode_fsinfo_maxsz) | |
360 | #define NFS4_dec_setclientid_confirm_sz \ | |
361 | (compound_decode_hdr_maxsz + \ | |
362 | decode_setclientid_confirm_maxsz + \ | |
363 | decode_putrootfh_maxsz + \ | |
364 | decode_fsinfo_maxsz) | |
365 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
366 | encode_putfh_maxsz + \ | |
9104a55d | 367 | encode_lock_maxsz) |
1da177e4 LT |
368 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
369 | decode_putfh_maxsz + \ | |
9104a55d | 370 | decode_lock_maxsz) |
1da177e4 LT |
371 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
372 | encode_putfh_maxsz + \ | |
9104a55d TM |
373 | encode_lockt_maxsz) |
374 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
375 | decode_putfh_maxsz + \ | |
376 | decode_lockt_maxsz) | |
1da177e4 LT |
377 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
378 | encode_putfh_maxsz + \ | |
9104a55d | 379 | encode_locku_maxsz) |
1da177e4 LT |
380 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
381 | decode_putfh_maxsz + \ | |
9104a55d | 382 | decode_locku_maxsz) |
1da177e4 LT |
383 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
384 | encode_putfh_maxsz + \ | |
76b32999 TM |
385 | encode_access_maxsz + \ |
386 | encode_getattr_maxsz) | |
1da177e4 LT |
387 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
388 | decode_putfh_maxsz + \ | |
76b32999 TM |
389 | decode_access_maxsz + \ |
390 | decode_getattr_maxsz) | |
1da177e4 LT |
391 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
392 | encode_putfh_maxsz + \ | |
393 | encode_getattr_maxsz) | |
394 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
395 | decode_putfh_maxsz + \ | |
396 | decode_getattr_maxsz) | |
397 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
398 | encode_putfh_maxsz + \ | |
399 | encode_lookup_maxsz + \ | |
400 | encode_getattr_maxsz + \ | |
401 | encode_getfh_maxsz) | |
402 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
403 | decode_putfh_maxsz + \ | |
e6889620 | 404 | decode_lookup_maxsz + \ |
1da177e4 LT |
405 | decode_getattr_maxsz + \ |
406 | decode_getfh_maxsz) | |
407 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
408 | encode_putrootfh_maxsz + \ | |
409 | encode_getattr_maxsz + \ | |
410 | encode_getfh_maxsz) | |
411 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
412 | decode_putrootfh_maxsz + \ | |
413 | decode_getattr_maxsz + \ | |
414 | decode_getfh_maxsz) | |
415 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
416 | encode_putfh_maxsz + \ | |
16e42959 TM |
417 | encode_remove_maxsz + \ |
418 | encode_getattr_maxsz) | |
1da177e4 LT |
419 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
420 | decode_putfh_maxsz + \ | |
6ce18391 | 421 | decode_remove_maxsz + \ |
16e42959 | 422 | decode_getattr_maxsz) |
1da177e4 LT |
423 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
424 | encode_putfh_maxsz + \ | |
425 | encode_savefh_maxsz + \ | |
426 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
427 | encode_rename_maxsz + \ |
428 | encode_getattr_maxsz + \ | |
429 | encode_restorefh_maxsz + \ | |
430 | encode_getattr_maxsz) | |
1da177e4 LT |
431 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
432 | decode_putfh_maxsz + \ | |
433 | decode_savefh_maxsz + \ | |
434 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
435 | decode_rename_maxsz + \ |
436 | decode_getattr_maxsz + \ | |
437 | decode_restorefh_maxsz + \ | |
438 | decode_getattr_maxsz) | |
1da177e4 LT |
439 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
440 | encode_putfh_maxsz + \ | |
441 | encode_savefh_maxsz + \ | |
442 | encode_putfh_maxsz + \ | |
91ba2eee TM |
443 | encode_link_maxsz + \ |
444 | decode_getattr_maxsz + \ | |
445 | encode_restorefh_maxsz + \ | |
446 | decode_getattr_maxsz) | |
1da177e4 LT |
447 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
448 | decode_putfh_maxsz + \ | |
449 | decode_savefh_maxsz + \ | |
450 | decode_putfh_maxsz + \ | |
91ba2eee TM |
451 | decode_link_maxsz + \ |
452 | decode_getattr_maxsz + \ | |
453 | decode_restorefh_maxsz + \ | |
454 | decode_getattr_maxsz) | |
1da177e4 LT |
455 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
456 | encode_putfh_maxsz + \ | |
457 | encode_symlink_maxsz + \ | |
458 | encode_getattr_maxsz + \ | |
459 | encode_getfh_maxsz) | |
460 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
461 | decode_putfh_maxsz + \ | |
462 | decode_symlink_maxsz + \ | |
463 | decode_getattr_maxsz + \ | |
464 | decode_getfh_maxsz) | |
465 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
466 | encode_putfh_maxsz + \ | |
56ae19f3 | 467 | encode_savefh_maxsz + \ |
1da177e4 | 468 | encode_create_maxsz + \ |
56ae19f3 | 469 | encode_getfh_maxsz + \ |
1da177e4 | 470 | encode_getattr_maxsz + \ |
56ae19f3 TM |
471 | encode_restorefh_maxsz + \ |
472 | encode_getattr_maxsz) | |
1da177e4 LT |
473 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
474 | decode_putfh_maxsz + \ | |
56ae19f3 | 475 | decode_savefh_maxsz + \ |
1da177e4 | 476 | decode_create_maxsz + \ |
56ae19f3 | 477 | decode_getfh_maxsz + \ |
1da177e4 | 478 | decode_getattr_maxsz + \ |
56ae19f3 TM |
479 | decode_restorefh_maxsz + \ |
480 | decode_getattr_maxsz) | |
1da177e4 LT |
481 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
482 | encode_putfh_maxsz + \ | |
483 | encode_getattr_maxsz) | |
484 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
485 | decode_putfh_maxsz + \ | |
486 | decode_getattr_maxsz) | |
487 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
488 | encode_putfh_maxsz + \ | |
9104a55d | 489 | encode_statfs_maxsz) |
1da177e4 LT |
490 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
491 | decode_putfh_maxsz + \ | |
9104a55d | 492 | decode_statfs_maxsz) |
1da177e4 | 493 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
ab91f264 | 494 | encode_putfh_maxsz + \ |
1da177e4 LT |
495 | encode_getattr_maxsz) |
496 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
ab91f264 | 497 | decode_putfh_maxsz + \ |
1da177e4 LT |
498 | decode_getattr_maxsz) |
499 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
500 | encode_putfh_maxsz + \ | |
fa178f29 TM |
501 | encode_delegreturn_maxsz + \ |
502 | encode_getattr_maxsz) | |
1da177e4 | 503 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
fa178f29 TM |
504 | decode_delegreturn_maxsz + \ |
505 | decode_getattr_maxsz) | |
029d105e BF |
506 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
507 | encode_putfh_maxsz + \ | |
9104a55d | 508 | encode_getacl_maxsz) |
029d105e BF |
509 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
510 | decode_putfh_maxsz + \ | |
9104a55d | 511 | decode_getacl_maxsz) |
23ec6965 BF |
512 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
513 | encode_putfh_maxsz + \ | |
9104a55d | 514 | encode_setacl_maxsz) |
23ec6965 BF |
515 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
516 | decode_putfh_maxsz + \ | |
9104a55d | 517 | decode_setacl_maxsz) |
683b57b4 TM |
518 | #define NFS4_enc_fs_locations_sz \ |
519 | (compound_encode_hdr_maxsz + \ | |
520 | encode_putfh_maxsz + \ | |
e6889620 TM |
521 | encode_lookup_maxsz + \ |
522 | encode_fs_locations_maxsz) | |
683b57b4 TM |
523 | #define NFS4_dec_fs_locations_sz \ |
524 | (compound_decode_hdr_maxsz + \ | |
525 | decode_putfh_maxsz + \ | |
e6889620 TM |
526 | decode_lookup_maxsz + \ |
527 | decode_fs_locations_maxsz) | |
1da177e4 | 528 | |
bca79478 TM |
529 | static const umode_t nfs_type2fmt[] = { |
530 | [NF4BAD] = 0, | |
531 | [NF4REG] = S_IFREG, | |
532 | [NF4DIR] = S_IFDIR, | |
533 | [NF4BLK] = S_IFBLK, | |
534 | [NF4CHR] = S_IFCHR, | |
535 | [NF4LNK] = S_IFLNK, | |
536 | [NF4SOCK] = S_IFSOCK, | |
537 | [NF4FIFO] = S_IFIFO, | |
538 | [NF4ATTRDIR] = 0, | |
539 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
540 | }; |
541 | ||
542 | struct compound_hdr { | |
543 | int32_t status; | |
544 | uint32_t nops; | |
d017931c | 545 | __be32 * nops_p; |
1da177e4 LT |
546 | uint32_t taglen; |
547 | char * tag; | |
0c4e8c18 | 548 | uint32_t replen; /* expected reply words */ |
66cc0429 | 549 | u32 minorversion; |
1da177e4 LT |
550 | }; |
551 | ||
552 | /* | |
553 | * START OF "GENERIC" ENCODE ROUTINES. | |
554 | * These may look a little ugly since they are imported from a "generic" | |
555 | * set of XDR encode/decode routines which are intended to be shared by | |
556 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
557 | * | |
558 | * If the pain of reading these is too great, it should be a straightforward | |
559 | * task to translate them into Linux-specific versions which are more | |
560 | * consistent with the style used in NFSv2/v3... | |
561 | */ | |
562 | #define WRITE32(n) *p++ = htonl(n) | |
563 | #define WRITE64(n) do { \ | |
564 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
565 | *p++ = htonl((uint32_t)(n)); \ | |
566 | } while (0) | |
567 | #define WRITEMEM(ptr,nbytes) do { \ | |
568 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
569 | } while (0) | |
570 | ||
571 | #define RESERVE_SPACE(nbytes) do { \ | |
572 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
573 | BUG_ON(!p); \ |
574 | } while (0) | |
575 | ||
576 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
577 | { | |
8687b63a | 578 | __be32 *p; |
1da177e4 LT |
579 | |
580 | p = xdr_reserve_space(xdr, 4 + len); | |
581 | BUG_ON(p == NULL); | |
582 | xdr_encode_opaque(p, str, len); | |
583 | } | |
584 | ||
0c4e8c18 BH |
585 | static void encode_compound_hdr(struct xdr_stream *xdr, |
586 | struct rpc_rqst *req, | |
587 | struct compound_hdr *hdr) | |
1da177e4 | 588 | { |
8687b63a | 589 | __be32 *p; |
0c4e8c18 BH |
590 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
591 | ||
592 | /* initialize running count of expected bytes in reply. | |
593 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
594 | * but this is not required as a MUST for the server to do so. */ | |
595 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
596 | |
597 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
598 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
599 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
600 | WRITE32(hdr->taglen); | |
601 | WRITEMEM(hdr->tag, hdr->taglen); | |
66cc0429 | 602 | WRITE32(hdr->minorversion); |
d017931c | 603 | hdr->nops_p = p; |
1da177e4 | 604 | WRITE32(hdr->nops); |
d017931c AA |
605 | } |
606 | ||
607 | static void encode_nops(struct compound_hdr *hdr) | |
608 | { | |
609 | *hdr->nops_p = htonl(hdr->nops); | |
1da177e4 LT |
610 | } |
611 | ||
612 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
613 | { | |
8687b63a | 614 | __be32 *p; |
1da177e4 LT |
615 | |
616 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
617 | BUG_ON(p == NULL); | |
618 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
619 | } | |
620 | ||
cf8cdbe5 | 621 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
622 | { |
623 | char owner_name[IDMAP_NAMESZ]; | |
624 | char owner_group[IDMAP_NAMESZ]; | |
625 | int owner_namelen = 0; | |
626 | int owner_grouplen = 0; | |
8687b63a AV |
627 | __be32 *p; |
628 | __be32 *q; | |
1da177e4 LT |
629 | int len; |
630 | uint32_t bmval0 = 0; | |
631 | uint32_t bmval1 = 0; | |
1da177e4 LT |
632 | |
633 | /* | |
634 | * We reserve enough space to write the entire attribute buffer at once. | |
635 | * In the worst-case, this would be | |
636 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
637 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 638 | * such as owner/group. |
1da177e4 LT |
639 | */ |
640 | len = 16; | |
641 | ||
642 | /* Sigh */ | |
643 | if (iap->ia_valid & ATTR_SIZE) | |
644 | len += 8; | |
645 | if (iap->ia_valid & ATTR_MODE) | |
646 | len += 4; | |
647 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 648 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 649 | if (owner_namelen < 0) { |
fe82a183 CL |
650 | dprintk("nfs: couldn't resolve uid %d to string\n", |
651 | iap->ia_uid); | |
1da177e4 LT |
652 | /* XXX */ |
653 | strcpy(owner_name, "nobody"); | |
654 | owner_namelen = sizeof("nobody") - 1; | |
655 | /* goto out; */ | |
656 | } | |
657 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
658 | } | |
659 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 660 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 661 | if (owner_grouplen < 0) { |
fe82a183 CL |
662 | dprintk("nfs: couldn't resolve gid %d to string\n", |
663 | iap->ia_gid); | |
1da177e4 LT |
664 | strcpy(owner_group, "nobody"); |
665 | owner_grouplen = sizeof("nobody") - 1; | |
666 | /* goto out; */ | |
667 | } | |
668 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
669 | } | |
670 | if (iap->ia_valid & ATTR_ATIME_SET) | |
671 | len += 16; | |
672 | else if (iap->ia_valid & ATTR_ATIME) | |
673 | len += 4; | |
674 | if (iap->ia_valid & ATTR_MTIME_SET) | |
675 | len += 16; | |
676 | else if (iap->ia_valid & ATTR_MTIME) | |
677 | len += 4; | |
678 | RESERVE_SPACE(len); | |
679 | ||
680 | /* | |
681 | * We write the bitmap length now, but leave the bitmap and the attribute | |
682 | * buffer length to be backfilled at the end of this routine. | |
683 | */ | |
684 | WRITE32(2); | |
685 | q = p; | |
686 | p += 3; | |
687 | ||
688 | if (iap->ia_valid & ATTR_SIZE) { | |
689 | bmval0 |= FATTR4_WORD0_SIZE; | |
690 | WRITE64(iap->ia_size); | |
691 | } | |
692 | if (iap->ia_valid & ATTR_MODE) { | |
693 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 694 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
695 | } |
696 | if (iap->ia_valid & ATTR_UID) { | |
697 | bmval1 |= FATTR4_WORD1_OWNER; | |
698 | WRITE32(owner_namelen); | |
699 | WRITEMEM(owner_name, owner_namelen); | |
700 | } | |
701 | if (iap->ia_valid & ATTR_GID) { | |
702 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
703 | WRITE32(owner_grouplen); | |
704 | WRITEMEM(owner_group, owner_grouplen); | |
705 | } | |
706 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
707 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
708 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
709 | WRITE32(0); | |
710 | WRITE32(iap->ia_mtime.tv_sec); | |
711 | WRITE32(iap->ia_mtime.tv_nsec); | |
712 | } | |
713 | else if (iap->ia_valid & ATTR_ATIME) { | |
714 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
715 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
716 | } | |
717 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
718 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
719 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
720 | WRITE32(0); | |
721 | WRITE32(iap->ia_mtime.tv_sec); | |
722 | WRITE32(iap->ia_mtime.tv_nsec); | |
723 | } | |
724 | else if (iap->ia_valid & ATTR_MTIME) { | |
725 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
726 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
727 | } | |
6c0195a4 | 728 | |
1da177e4 LT |
729 | /* |
730 | * Now we backfill the bitmap and the attribute buffer length. | |
731 | */ | |
732 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 733 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
734 | len, ((char *)p - (char *)q) + 4); |
735 | BUG(); | |
736 | } | |
737 | len = (char *)p - (char *)q - 12; | |
738 | *q++ = htonl(bmval0); | |
739 | *q++ = htonl(bmval1); | |
740 | *q++ = htonl(len); | |
741 | ||
1da177e4 | 742 | /* out: */ |
1da177e4 LT |
743 | } |
744 | ||
cf8cdbe5 | 745 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 746 | { |
8687b63a | 747 | __be32 *p; |
1da177e4 LT |
748 | |
749 | RESERVE_SPACE(8); | |
750 | WRITE32(OP_ACCESS); | |
751 | WRITE32(access); | |
d017931c | 752 | hdr->nops++; |
dadf0c27 | 753 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
754 | } |
755 | ||
cf8cdbe5 | 756 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 757 | { |
8687b63a | 758 | __be32 *p; |
1da177e4 | 759 | |
8ae20abd | 760 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 761 | WRITE32(OP_CLOSE); |
cee54fc9 | 762 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 763 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 764 | hdr->nops++; |
dadf0c27 | 765 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
766 | } |
767 | ||
cf8cdbe5 | 768 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 769 | { |
8687b63a | 770 | __be32 *p; |
6c0195a4 | 771 | |
05d564fe AA |
772 | RESERVE_SPACE(16); |
773 | WRITE32(OP_COMMIT); | |
774 | WRITE64(args->offset); | |
775 | WRITE32(args->count); | |
d017931c | 776 | hdr->nops++; |
dadf0c27 | 777 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
778 | } |
779 | ||
cf8cdbe5 | 780 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 781 | { |
8687b63a | 782 | __be32 *p; |
6c0195a4 | 783 | |
1da177e4 LT |
784 | RESERVE_SPACE(8); |
785 | WRITE32(OP_CREATE); | |
786 | WRITE32(create->ftype); | |
787 | ||
788 | switch (create->ftype) { | |
789 | case NF4LNK: | |
94a6d753 CL |
790 | RESERVE_SPACE(4); |
791 | WRITE32(create->u.symlink.len); | |
792 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
793 | break; |
794 | ||
795 | case NF4BLK: case NF4CHR: | |
796 | RESERVE_SPACE(8); | |
797 | WRITE32(create->u.device.specdata1); | |
798 | WRITE32(create->u.device.specdata2); | |
799 | break; | |
800 | ||
801 | default: | |
802 | break; | |
803 | } | |
804 | ||
805 | RESERVE_SPACE(4 + create->name->len); | |
806 | WRITE32(create->name->len); | |
807 | WRITEMEM(create->name->name, create->name->len); | |
d017931c | 808 | hdr->nops++; |
dadf0c27 | 809 | hdr->replen += decode_create_maxsz; |
1da177e4 | 810 | |
cf8cdbe5 | 811 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
812 | } |
813 | ||
cf8cdbe5 | 814 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 815 | { |
05d564fe | 816 | __be32 *p; |
1da177e4 | 817 | |
05d564fe AA |
818 | RESERVE_SPACE(12); |
819 | WRITE32(OP_GETATTR); | |
820 | WRITE32(1); | |
821 | WRITE32(bitmap); | |
d017931c | 822 | hdr->nops++; |
dadf0c27 | 823 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
824 | } |
825 | ||
cf8cdbe5 | 826 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 827 | { |
05d564fe | 828 | __be32 *p; |
1da177e4 | 829 | |
05d564fe AA |
830 | RESERVE_SPACE(16); |
831 | WRITE32(OP_GETATTR); | |
832 | WRITE32(2); | |
833 | WRITE32(bm0); | |
834 | WRITE32(bm1); | |
d017931c | 835 | hdr->nops++; |
dadf0c27 | 836 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
837 | } |
838 | ||
cf8cdbe5 | 839 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 840 | { |
cf8cdbe5 AA |
841 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
842 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
843 | } |
844 | ||
cf8cdbe5 | 845 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 846 | { |
cf8cdbe5 AA |
847 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
848 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
849 | } |
850 | ||
cf8cdbe5 | 851 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 852 | { |
cf8cdbe5 AA |
853 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
854 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
855 | } |
856 | ||
cf8cdbe5 | 857 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 858 | { |
8687b63a | 859 | __be32 *p; |
1da177e4 LT |
860 | |
861 | RESERVE_SPACE(4); | |
862 | WRITE32(OP_GETFH); | |
d017931c | 863 | hdr->nops++; |
dadf0c27 | 864 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
865 | } |
866 | ||
cf8cdbe5 | 867 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 868 | { |
8687b63a | 869 | __be32 *p; |
1da177e4 LT |
870 | |
871 | RESERVE_SPACE(8 + name->len); | |
872 | WRITE32(OP_LINK); | |
873 | WRITE32(name->len); | |
874 | WRITEMEM(name->name, name->len); | |
d017931c | 875 | hdr->nops++; |
dadf0c27 | 876 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
877 | } |
878 | ||
911d1aaf TM |
879 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
880 | { | |
881 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
882 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
883 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
884 | } | |
885 | ||
886 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
887 | { | |
888 | if (fl->fl_end == OFFSET_MAX) | |
889 | return ~(uint64_t)0; | |
890 | return fl->fl_end - fl->fl_start + 1; | |
891 | } | |
892 | ||
1da177e4 LT |
893 | /* |
894 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
895 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
896 | */ | |
cf8cdbe5 | 897 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 898 | { |
8687b63a | 899 | __be32 *p; |
1da177e4 LT |
900 | |
901 | RESERVE_SPACE(32); | |
902 | WRITE32(OP_LOCK); | |
911d1aaf TM |
903 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
904 | WRITE32(args->reclaim); | |
905 | WRITE64(args->fl->fl_start); | |
906 | WRITE64(nfs4_lock_length(args->fl)); | |
907 | WRITE32(args->new_lock_owner); | |
908 | if (args->new_lock_owner){ | |
9f958ab8 | 909 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 910 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 911 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
912 | WRITE32(args->lock_seqid->sequence->counter); |
913 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
914 | WRITE32(16); |
915 | WRITEMEM("lock id:", 8); | |
916 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
917 | } |
918 | else { | |
8ae20abd TM |
919 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
920 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 921 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 922 | } |
d017931c | 923 | hdr->nops++; |
dadf0c27 | 924 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
925 | } |
926 | ||
cf8cdbe5 | 927 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 928 | { |
8687b63a | 929 | __be32 *p; |
1da177e4 | 930 | |
9f958ab8 | 931 | RESERVE_SPACE(52); |
1da177e4 | 932 | WRITE32(OP_LOCKT); |
911d1aaf TM |
933 | WRITE32(nfs4_lock_type(args->fl, 0)); |
934 | WRITE64(args->fl->fl_start); | |
935 | WRITE64(nfs4_lock_length(args->fl)); | |
936 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
937 | WRITE32(16); |
938 | WRITEMEM("lock id:", 8); | |
939 | WRITE64(args->lock_owner.id); | |
d017931c | 940 | hdr->nops++; |
dadf0c27 | 941 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
942 | } |
943 | ||
cf8cdbe5 | 944 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 945 | { |
8687b63a | 946 | __be32 *p; |
1da177e4 | 947 | |
8ae20abd | 948 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 949 | WRITE32(OP_LOCKU); |
911d1aaf TM |
950 | WRITE32(nfs4_lock_type(args->fl, 0)); |
951 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 952 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
953 | WRITE64(args->fl->fl_start); |
954 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 955 | hdr->nops++; |
dadf0c27 | 956 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
957 | } |
958 | ||
cf8cdbe5 | 959 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
960 | { |
961 | int len = name->len; | |
8687b63a | 962 | __be32 *p; |
1da177e4 LT |
963 | |
964 | RESERVE_SPACE(8 + len); | |
965 | WRITE32(OP_LOOKUP); | |
966 | WRITE32(len); | |
967 | WRITEMEM(name->name, len); | |
d017931c | 968 | hdr->nops++; |
dadf0c27 | 969 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
970 | } |
971 | ||
dc0b027d | 972 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 973 | { |
8687b63a | 974 | __be32 *p; |
1da177e4 LT |
975 | |
976 | RESERVE_SPACE(8); | |
dc0b027d | 977 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
978 | case FMODE_READ: |
979 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
980 | break; | |
981 | case FMODE_WRITE: | |
982 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
983 | break; | |
984 | case FMODE_READ|FMODE_WRITE: | |
985 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
986 | break; | |
987 | default: | |
988 | WRITE32(0); | |
1da177e4 LT |
989 | } |
990 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
991 | } | |
992 | ||
993 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
994 | { | |
8687b63a | 995 | __be32 *p; |
1da177e4 LT |
996 | /* |
997 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
998 | * owner 4 = 32 | |
999 | */ | |
1000 | RESERVE_SPACE(8); | |
1001 | WRITE32(OP_OPEN); | |
cee54fc9 | 1002 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1003 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 1004 | RESERVE_SPACE(28); |
1da177e4 | 1005 | WRITE64(arg->clientid); |
9f958ab8 TM |
1006 | WRITE32(16); |
1007 | WRITEMEM("open id:", 8); | |
1008 | WRITE64(arg->id); | |
1da177e4 LT |
1009 | } |
1010 | ||
1011 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1012 | { | |
8687b63a | 1013 | __be32 *p; |
1da177e4 LT |
1014 | |
1015 | RESERVE_SPACE(4); | |
1016 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
1017 | case 0: |
1018 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1019 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1020 | break; | |
1021 | default: | |
1022 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1023 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
1024 | } |
1025 | } | |
1026 | ||
1027 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1028 | { | |
8687b63a | 1029 | __be32 *p; |
1da177e4 LT |
1030 | |
1031 | RESERVE_SPACE(4); | |
1032 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1033 | case 0: |
1034 | WRITE32(NFS4_OPEN_NOCREATE); | |
1035 | break; | |
1036 | default: | |
1037 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1038 | WRITE32(NFS4_OPEN_CREATE); | |
1039 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1040 | } |
1041 | } | |
1042 | ||
bd7bf9d5 | 1043 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1044 | { |
8687b63a | 1045 | __be32 *p; |
1da177e4 LT |
1046 | |
1047 | RESERVE_SPACE(4); | |
1048 | switch (delegation_type) { | |
05d564fe AA |
1049 | case 0: |
1050 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1051 | break; | |
1052 | case FMODE_READ: | |
1053 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1054 | break; | |
1055 | case FMODE_WRITE|FMODE_READ: | |
1056 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1057 | break; | |
1058 | default: | |
1059 | BUG(); | |
1da177e4 LT |
1060 | } |
1061 | } | |
1062 | ||
1063 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1064 | { | |
8687b63a | 1065 | __be32 *p; |
1da177e4 LT |
1066 | |
1067 | RESERVE_SPACE(4); | |
1068 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1069 | encode_string(xdr, name->len, name->name); | |
1070 | } | |
1071 | ||
bd7bf9d5 | 1072 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1073 | { |
8687b63a | 1074 | __be32 *p; |
1da177e4 LT |
1075 | |
1076 | RESERVE_SPACE(4); | |
1077 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1078 | encode_delegation_type(xdr, type); | |
1079 | } | |
1080 | ||
1081 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1082 | { | |
8687b63a | 1083 | __be32 *p; |
1da177e4 | 1084 | |
8ae20abd | 1085 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1086 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1087 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1088 | encode_string(xdr, name->len, name->name); |
1089 | } | |
1090 | ||
cf8cdbe5 | 1091 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1092 | { |
1093 | encode_openhdr(xdr, arg); | |
1094 | encode_opentype(xdr, arg); | |
1095 | switch (arg->claim) { | |
05d564fe AA |
1096 | case NFS4_OPEN_CLAIM_NULL: |
1097 | encode_claim_null(xdr, arg->name); | |
1098 | break; | |
1099 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1100 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1101 | break; | |
1102 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1103 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1104 | break; | |
1105 | default: | |
1106 | BUG(); | |
1da177e4 | 1107 | } |
d017931c | 1108 | hdr->nops++; |
dadf0c27 | 1109 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1110 | } |
1111 | ||
cf8cdbe5 | 1112 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1113 | { |
8687b63a | 1114 | __be32 *p; |
1da177e4 | 1115 | |
8ae20abd | 1116 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1117 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1118 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1119 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1120 | hdr->nops++; |
dadf0c27 | 1121 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1122 | } |
1123 | ||
cf8cdbe5 | 1124 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1125 | { |
8687b63a | 1126 | __be32 *p; |
1da177e4 | 1127 | |
8ae20abd | 1128 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1129 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1130 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1131 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1132 | encode_share_access(xdr, arg->fmode); |
d017931c | 1133 | hdr->nops++; |
dadf0c27 | 1134 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1135 | } |
1136 | ||
cf8cdbe5 | 1137 | static void |
d017931c | 1138 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1139 | { |
1140 | int len = fh->size; | |
8687b63a | 1141 | __be32 *p; |
1da177e4 LT |
1142 | |
1143 | RESERVE_SPACE(8 + len); | |
1144 | WRITE32(OP_PUTFH); | |
1145 | WRITE32(len); | |
1146 | WRITEMEM(fh->data, len); | |
d017931c | 1147 | hdr->nops++; |
dadf0c27 | 1148 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1149 | } |
1150 | ||
cf8cdbe5 | 1151 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1152 | { |
05d564fe | 1153 | __be32 *p; |
6c0195a4 | 1154 | |
05d564fe AA |
1155 | RESERVE_SPACE(4); |
1156 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1157 | hdr->nops++; |
dadf0c27 | 1158 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1159 | } |
1160 | ||
1161 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1162 | { | |
1da177e4 | 1163 | nfs4_stateid stateid; |
8687b63a | 1164 | __be32 *p; |
1da177e4 | 1165 | |
8ae20abd | 1166 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1167 | if (ctx->state != NULL) { |
1168 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1169 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1170 | } else |
8ae20abd | 1171 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1172 | } |
1173 | ||
cf8cdbe5 | 1174 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1175 | { |
8687b63a | 1176 | __be32 *p; |
1da177e4 LT |
1177 | |
1178 | RESERVE_SPACE(4); | |
1179 | WRITE32(OP_READ); | |
1180 | ||
1181 | encode_stateid(xdr, args->context); | |
1182 | ||
1183 | RESERVE_SPACE(12); | |
1184 | WRITE64(args->offset); | |
1185 | WRITE32(args->count); | |
d017931c | 1186 | hdr->nops++; |
dadf0c27 | 1187 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1188 | } |
1189 | ||
cf8cdbe5 | 1190 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1191 | { |
97d312d0 MN |
1192 | uint32_t attrs[2] = { |
1193 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1194 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1195 | }; | |
8687b63a | 1196 | __be32 *p; |
1da177e4 | 1197 | |
8ae20abd | 1198 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1199 | WRITE32(OP_READDIR); |
1200 | WRITE64(readdir->cookie); | |
8ae20abd | 1201 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1202 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1203 | WRITE32(readdir->count); | |
1204 | WRITE32(2); | |
97d312d0 MN |
1205 | /* Switch to mounted_on_fileid if the server supports it */ |
1206 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1207 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1208 | else | |
1209 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1210 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1211 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1212 | hdr->nops++; |
dadf0c27 | 1213 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1214 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1215 | __func__, | |
eadf4598 TM |
1216 | (unsigned long long)readdir->cookie, |
1217 | ((u32 *)readdir->verifier.data)[0], | |
1218 | ((u32 *)readdir->verifier.data)[1], | |
1219 | attrs[0] & readdir->bitmask[0], | |
1220 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1221 | } |
1222 | ||
cf8cdbe5 | 1223 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1224 | { |
8687b63a | 1225 | __be32 *p; |
1da177e4 LT |
1226 | |
1227 | RESERVE_SPACE(4); | |
1228 | WRITE32(OP_READLINK); | |
d017931c | 1229 | hdr->nops++; |
dadf0c27 | 1230 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1231 | } |
1232 | ||
cf8cdbe5 | 1233 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1234 | { |
8687b63a | 1235 | __be32 *p; |
1da177e4 LT |
1236 | |
1237 | RESERVE_SPACE(8 + name->len); | |
1238 | WRITE32(OP_REMOVE); | |
1239 | WRITE32(name->len); | |
1240 | WRITEMEM(name->name, name->len); | |
d017931c | 1241 | hdr->nops++; |
dadf0c27 | 1242 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1243 | } |
1244 | ||
cf8cdbe5 | 1245 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1246 | { |
8687b63a | 1247 | __be32 *p; |
1da177e4 LT |
1248 | |
1249 | RESERVE_SPACE(8 + oldname->len); | |
1250 | WRITE32(OP_RENAME); | |
1251 | WRITE32(oldname->len); | |
1252 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1253 | |
1da177e4 LT |
1254 | RESERVE_SPACE(4 + newname->len); |
1255 | WRITE32(newname->len); | |
1256 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1257 | hdr->nops++; |
dadf0c27 | 1258 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1259 | } |
1260 | ||
cf8cdbe5 | 1261 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1262 | { |
8687b63a | 1263 | __be32 *p; |
1da177e4 LT |
1264 | |
1265 | RESERVE_SPACE(12); | |
1266 | WRITE32(OP_RENEW); | |
1267 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1268 | hdr->nops++; |
dadf0c27 | 1269 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1270 | } |
1271 | ||
cf8cdbe5 | 1272 | static void |
d017931c | 1273 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1274 | { |
8687b63a | 1275 | __be32 *p; |
56ae19f3 TM |
1276 | |
1277 | RESERVE_SPACE(4); | |
1278 | WRITE32(OP_RESTOREFH); | |
d017931c | 1279 | hdr->nops++; |
dadf0c27 | 1280 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1281 | } |
1282 | ||
23ec6965 | 1283 | static int |
d017931c | 1284 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1285 | { |
8687b63a | 1286 | __be32 *p; |
23ec6965 | 1287 | |
8ae20abd | 1288 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1289 | WRITE32(OP_SETATTR); |
8ae20abd | 1290 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1291 | RESERVE_SPACE(2*4); |
1292 | WRITE32(1); | |
1293 | WRITE32(FATTR4_WORD0_ACL); | |
1294 | if (arg->acl_len % 4) | |
1295 | return -EINVAL; | |
1296 | RESERVE_SPACE(4); | |
1297 | WRITE32(arg->acl_len); | |
1298 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1299 | hdr->nops++; |
dadf0c27 | 1300 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1301 | return 0; |
1302 | } | |
1303 | ||
cf8cdbe5 | 1304 | static void |
d017931c | 1305 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1306 | { |
8687b63a | 1307 | __be32 *p; |
1da177e4 LT |
1308 | |
1309 | RESERVE_SPACE(4); | |
1310 | WRITE32(OP_SAVEFH); | |
d017931c | 1311 | hdr->nops++; |
dadf0c27 | 1312 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1313 | } |
1314 | ||
cf8cdbe5 | 1315 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1316 | { |
8687b63a | 1317 | __be32 *p; |
6c0195a4 | 1318 | |
05d564fe AA |
1319 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1320 | WRITE32(OP_SETATTR); | |
8ae20abd | 1321 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1322 | hdr->nops++; |
dadf0c27 | 1323 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1324 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1325 | } |
1326 | ||
cf8cdbe5 | 1327 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1328 | { |
8687b63a | 1329 | __be32 *p; |
1da177e4 | 1330 | |
8ae20abd | 1331 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1332 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1333 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1334 | |
1335 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1336 | RESERVE_SPACE(4); | |
1337 | WRITE32(setclientid->sc_prog); | |
1338 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1339 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1340 | RESERVE_SPACE(4); | |
1341 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1342 | hdr->nops++; |
dadf0c27 | 1343 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1344 | } |
1345 | ||
cf8cdbe5 | 1346 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1347 | { |
05d564fe | 1348 | __be32 *p; |
1da177e4 | 1349 | |
05d564fe AA |
1350 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1351 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1352 | WRITE64(client_state->cl_clientid); | |
1353 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1354 | hdr->nops++; |
dadf0c27 | 1355 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1356 | } |
1357 | ||
cf8cdbe5 | 1358 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1359 | { |
8687b63a | 1360 | __be32 *p; |
1da177e4 LT |
1361 | |
1362 | RESERVE_SPACE(4); | |
1363 | WRITE32(OP_WRITE); | |
1364 | ||
1365 | encode_stateid(xdr, args->context); | |
1366 | ||
1367 | RESERVE_SPACE(16); | |
1368 | WRITE64(args->offset); | |
1369 | WRITE32(args->stable); | |
1370 | WRITE32(args->count); | |
1371 | ||
1372 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1373 | hdr->nops++; |
dadf0c27 | 1374 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1375 | } |
1376 | ||
cf8cdbe5 | 1377 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1378 | { |
8687b63a | 1379 | __be32 *p; |
1da177e4 | 1380 | |
8ae20abd | 1381 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1382 | |
1383 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1384 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1385 | hdr->nops++; |
dadf0c27 | 1386 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 LT |
1387 | } |
1388 | /* | |
1389 | * END OF "GENERIC" ENCODE ROUTINES. | |
1390 | */ | |
1391 | ||
66cc0429 BH |
1392 | static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) |
1393 | { | |
1394 | #if defined(CONFIG_NFS_V4_1) | |
1395 | if (args->sa_session) | |
1396 | return args->sa_session->clp->cl_minorversion; | |
1397 | #endif /* CONFIG_NFS_V4_1 */ | |
1398 | return 0; | |
1399 | } | |
1400 | ||
1da177e4 LT |
1401 | /* |
1402 | * Encode an ACCESS request | |
1403 | */ | |
8687b63a | 1404 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1405 | { |
1406 | struct xdr_stream xdr; | |
1407 | struct compound_hdr hdr = { | |
66cc0429 | 1408 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1409 | }; |
1da177e4 LT |
1410 | |
1411 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1412 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1413 | encode_putfh(&xdr, args->fh, &hdr); |
1414 | encode_access(&xdr, args->access, &hdr); | |
1415 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1416 | encode_nops(&hdr); |
cf8cdbe5 | 1417 | return 0; |
1da177e4 LT |
1418 | } |
1419 | ||
1420 | /* | |
1421 | * Encode LOOKUP request | |
1422 | */ | |
8687b63a | 1423 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1424 | { |
1425 | struct xdr_stream xdr; | |
1426 | struct compound_hdr hdr = { | |
66cc0429 | 1427 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1428 | }; |
1da177e4 LT |
1429 | |
1430 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1431 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1432 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1433 | encode_lookup(&xdr, args->name, &hdr); | |
1434 | encode_getfh(&xdr, &hdr); | |
1435 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1436 | encode_nops(&hdr); |
cf8cdbe5 | 1437 | return 0; |
1da177e4 LT |
1438 | } |
1439 | ||
1440 | /* | |
1441 | * Encode LOOKUP_ROOT request | |
1442 | */ | |
8687b63a | 1443 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1444 | { |
1445 | struct xdr_stream xdr; | |
1446 | struct compound_hdr hdr = { | |
66cc0429 | 1447 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1448 | }; |
1da177e4 LT |
1449 | |
1450 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1451 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1452 | encode_putrootfh(&xdr, &hdr); |
1453 | encode_getfh(&xdr, &hdr); | |
1454 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1455 | encode_nops(&hdr); |
cf8cdbe5 | 1456 | return 0; |
1da177e4 LT |
1457 | } |
1458 | ||
1459 | /* | |
1460 | * Encode REMOVE request | |
1461 | */ | |
4fdc17b2 | 1462 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1463 | { |
1464 | struct xdr_stream xdr; | |
1465 | struct compound_hdr hdr = { | |
66cc0429 | 1466 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1467 | }; |
1da177e4 LT |
1468 | |
1469 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1470 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1471 | encode_putfh(&xdr, args->fh, &hdr); |
1472 | encode_remove(&xdr, &args->name, &hdr); | |
1473 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1474 | encode_nops(&hdr); |
cf8cdbe5 | 1475 | return 0; |
1da177e4 LT |
1476 | } |
1477 | ||
1478 | /* | |
1479 | * Encode RENAME request | |
1480 | */ | |
8687b63a | 1481 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1482 | { |
1483 | struct xdr_stream xdr; | |
1484 | struct compound_hdr hdr = { | |
66cc0429 | 1485 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1486 | }; |
1da177e4 LT |
1487 | |
1488 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1489 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1490 | encode_putfh(&xdr, args->old_dir, &hdr); |
1491 | encode_savefh(&xdr, &hdr); | |
1492 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1493 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1494 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1495 | encode_restorefh(&xdr, &hdr); | |
1496 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1497 | encode_nops(&hdr); |
cf8cdbe5 | 1498 | return 0; |
1da177e4 LT |
1499 | } |
1500 | ||
1501 | /* | |
1502 | * Encode LINK request | |
1503 | */ | |
8687b63a | 1504 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1505 | { |
1506 | struct xdr_stream xdr; | |
1507 | struct compound_hdr hdr = { | |
66cc0429 | 1508 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1509 | }; |
1da177e4 LT |
1510 | |
1511 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1512 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1513 | encode_putfh(&xdr, args->fh, &hdr); |
1514 | encode_savefh(&xdr, &hdr); | |
1515 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1516 | encode_link(&xdr, args->name, &hdr); | |
1517 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1518 | encode_restorefh(&xdr, &hdr); | |
1519 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1520 | encode_nops(&hdr); |
cf8cdbe5 | 1521 | return 0; |
1da177e4 LT |
1522 | } |
1523 | ||
1524 | /* | |
1525 | * Encode CREATE request | |
1526 | */ | |
8687b63a | 1527 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1528 | { |
1529 | struct xdr_stream xdr; | |
1530 | struct compound_hdr hdr = { | |
66cc0429 | 1531 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1532 | }; |
1da177e4 LT |
1533 | |
1534 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1535 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1536 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1537 | encode_savefh(&xdr, &hdr); | |
1538 | encode_create(&xdr, args, &hdr); | |
1539 | encode_getfh(&xdr, &hdr); | |
1540 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1541 | encode_restorefh(&xdr, &hdr); | |
1542 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1543 | encode_nops(&hdr); |
cf8cdbe5 | 1544 | return 0; |
1da177e4 LT |
1545 | } |
1546 | ||
1547 | /* | |
1548 | * Encode SYMLINK request | |
1549 | */ | |
8687b63a | 1550 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1551 | { |
1552 | return nfs4_xdr_enc_create(req, p, args); | |
1553 | } | |
1554 | ||
1555 | /* | |
1556 | * Encode GETATTR request | |
1557 | */ | |
8687b63a | 1558 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1559 | { |
1560 | struct xdr_stream xdr; | |
1561 | struct compound_hdr hdr = { | |
66cc0429 | 1562 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1563 | }; |
1da177e4 LT |
1564 | |
1565 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1566 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1567 | encode_putfh(&xdr, args->fh, &hdr); |
1568 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1569 | encode_nops(&hdr); |
cf8cdbe5 | 1570 | return 0; |
1da177e4 LT |
1571 | } |
1572 | ||
1573 | /* | |
1574 | * Encode a CLOSE request | |
1575 | */ | |
8687b63a | 1576 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1577 | { |
05d564fe AA |
1578 | struct xdr_stream xdr; |
1579 | struct compound_hdr hdr = { | |
66cc0429 | 1580 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1581 | }; |
05d564fe AA |
1582 | |
1583 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1584 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1585 | encode_putfh(&xdr, args->fh, &hdr); |
1586 | encode_close(&xdr, args, &hdr); | |
1587 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1588 | encode_nops(&hdr); |
cf8cdbe5 | 1589 | return 0; |
1da177e4 LT |
1590 | } |
1591 | ||
1592 | /* | |
1593 | * Encode an OPEN request | |
1594 | */ | |
8687b63a | 1595 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1596 | { |
1597 | struct xdr_stream xdr; | |
1598 | struct compound_hdr hdr = { | |
66cc0429 | 1599 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1600 | }; |
1da177e4 LT |
1601 | |
1602 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1603 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1604 | encode_putfh(&xdr, args->fh, &hdr); |
1605 | encode_savefh(&xdr, &hdr); | |
1606 | encode_open(&xdr, args, &hdr); | |
1607 | encode_getfh(&xdr, &hdr); | |
1608 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1609 | encode_restorefh(&xdr, &hdr); | |
1610 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1611 | encode_nops(&hdr); |
cf8cdbe5 | 1612 | return 0; |
1da177e4 LT |
1613 | } |
1614 | ||
1615 | /* | |
1616 | * Encode an OPEN_CONFIRM request | |
1617 | */ | |
8687b63a | 1618 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1619 | { |
1620 | struct xdr_stream xdr; | |
1621 | struct compound_hdr hdr = { | |
d017931c | 1622 | .nops = 0, |
1da177e4 | 1623 | }; |
1da177e4 LT |
1624 | |
1625 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1626 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1627 | encode_putfh(&xdr, args->fh, &hdr); |
1628 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1629 | encode_nops(&hdr); |
cf8cdbe5 | 1630 | return 0; |
1da177e4 LT |
1631 | } |
1632 | ||
1633 | /* | |
1634 | * Encode an OPEN request with no attributes. | |
1635 | */ | |
8687b63a | 1636 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1637 | { |
1638 | struct xdr_stream xdr; | |
1639 | struct compound_hdr hdr = { | |
66cc0429 | 1640 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1641 | }; |
1da177e4 LT |
1642 | |
1643 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1644 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1645 | encode_putfh(&xdr, args->fh, &hdr); |
1646 | encode_open(&xdr, args, &hdr); | |
1647 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1648 | encode_nops(&hdr); |
cf8cdbe5 | 1649 | return 0; |
1da177e4 LT |
1650 | } |
1651 | ||
1652 | /* | |
1653 | * Encode an OPEN_DOWNGRADE request | |
1654 | */ | |
8687b63a | 1655 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1656 | { |
1657 | struct xdr_stream xdr; | |
1658 | struct compound_hdr hdr = { | |
66cc0429 | 1659 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1660 | }; |
1da177e4 LT |
1661 | |
1662 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1663 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1664 | encode_putfh(&xdr, args->fh, &hdr); |
1665 | encode_open_downgrade(&xdr, args, &hdr); | |
1666 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1667 | encode_nops(&hdr); |
cf8cdbe5 | 1668 | return 0; |
1da177e4 LT |
1669 | } |
1670 | ||
1671 | /* | |
1672 | * Encode a LOCK request | |
1673 | */ | |
8687b63a | 1674 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1675 | { |
1676 | struct xdr_stream xdr; | |
1677 | struct compound_hdr hdr = { | |
66cc0429 | 1678 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1679 | }; |
1da177e4 LT |
1680 | |
1681 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1682 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1683 | encode_putfh(&xdr, args->fh, &hdr); |
1684 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1685 | encode_nops(&hdr); |
cf8cdbe5 | 1686 | return 0; |
1da177e4 LT |
1687 | } |
1688 | ||
1689 | /* | |
1690 | * Encode a LOCKT request | |
1691 | */ | |
8687b63a | 1692 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1693 | { |
1694 | struct xdr_stream xdr; | |
1695 | struct compound_hdr hdr = { | |
66cc0429 | 1696 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1697 | }; |
1da177e4 LT |
1698 | |
1699 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1700 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1701 | encode_putfh(&xdr, args->fh, &hdr); |
1702 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1703 | encode_nops(&hdr); |
cf8cdbe5 | 1704 | return 0; |
1da177e4 LT |
1705 | } |
1706 | ||
1707 | /* | |
1708 | * Encode a LOCKU request | |
1709 | */ | |
8687b63a | 1710 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1711 | { |
1712 | struct xdr_stream xdr; | |
1713 | struct compound_hdr hdr = { | |
66cc0429 | 1714 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1715 | }; |
1da177e4 LT |
1716 | |
1717 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1718 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1719 | encode_putfh(&xdr, args->fh, &hdr); |
1720 | encode_locku(&xdr, args, &hdr); | |
d017931c | 1721 | encode_nops(&hdr); |
cf8cdbe5 | 1722 | return 0; |
1da177e4 LT |
1723 | } |
1724 | ||
1725 | /* | |
1726 | * Encode a READLINK request | |
1727 | */ | |
8687b63a | 1728 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1729 | { |
1730 | struct xdr_stream xdr; | |
1731 | struct compound_hdr hdr = { | |
66cc0429 | 1732 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1733 | }; |
1da177e4 LT |
1734 | |
1735 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1736 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1737 | encode_putfh(&xdr, args->fh, &hdr); |
1738 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 | 1739 | |
28f56694 | 1740 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
e3a535e1 | 1741 | args->pgbase, args->pglen); |
d017931c | 1742 | encode_nops(&hdr); |
cf8cdbe5 | 1743 | return 0; |
1da177e4 LT |
1744 | } |
1745 | ||
1746 | /* | |
1747 | * Encode a READDIR request | |
1748 | */ | |
8687b63a | 1749 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1750 | { |
1751 | struct xdr_stream xdr; | |
1752 | struct compound_hdr hdr = { | |
66cc0429 | 1753 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1754 | }; |
1da177e4 LT |
1755 | |
1756 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1757 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1758 | encode_putfh(&xdr, args->fh, &hdr); |
1759 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df | 1760 | |
28f56694 | 1761 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, |
d6ac02df TM |
1762 | args->pgbase, args->count); |
1763 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
28f56694 | 1764 | __func__, hdr.replen << 2, args->pages, |
d6ac02df | 1765 | args->pgbase, args->count); |
d017931c | 1766 | encode_nops(&hdr); |
cf8cdbe5 | 1767 | return 0; |
1da177e4 LT |
1768 | } |
1769 | ||
1770 | /* | |
1771 | * Encode a READ request | |
1772 | */ | |
8687b63a | 1773 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1774 | { |
1da177e4 LT |
1775 | struct xdr_stream xdr; |
1776 | struct compound_hdr hdr = { | |
66cc0429 | 1777 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1778 | }; |
1da177e4 LT |
1779 | |
1780 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1781 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1782 | encode_putfh(&xdr, args->fh, &hdr); |
1783 | encode_read(&xdr, args, &hdr); | |
1da177e4 | 1784 | |
28f56694 | 1785 | xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, |
1da177e4 | 1786 | args->pages, args->pgbase, args->count); |
4f22ccc3 | 1787 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 1788 | encode_nops(&hdr); |
cf8cdbe5 | 1789 | return 0; |
1da177e4 LT |
1790 | } |
1791 | ||
1792 | /* | |
1793 | * Encode an SETATTR request | |
1794 | */ | |
8687b63a | 1795 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 1796 | { |
05d564fe AA |
1797 | struct xdr_stream xdr; |
1798 | struct compound_hdr hdr = { | |
66cc0429 | 1799 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe | 1800 | }; |
05d564fe AA |
1801 | |
1802 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1803 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1804 | encode_putfh(&xdr, args->fh, &hdr); |
1805 | encode_setattr(&xdr, args, args->server, &hdr); | |
1806 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1807 | encode_nops(&hdr); |
cf8cdbe5 | 1808 | return 0; |
1da177e4 LT |
1809 | } |
1810 | ||
029d105e BF |
1811 | /* |
1812 | * Encode a GETACL request | |
1813 | */ | |
1814 | static int | |
8687b63a | 1815 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1816 | struct nfs_getaclargs *args) |
1817 | { | |
1818 | struct xdr_stream xdr; | |
029d105e | 1819 | struct compound_hdr hdr = { |
66cc0429 | 1820 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
029d105e | 1821 | }; |
28f56694 | 1822 | uint32_t replen; |
029d105e BF |
1823 | |
1824 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1825 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1826 | encode_putfh(&xdr, args->fh, &hdr); |
28f56694 | 1827 | replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; |
cf8cdbe5 AA |
1828 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
1829 | ||
28f56694 | 1830 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, |
029d105e | 1831 | args->acl_pages, args->acl_pgbase, args->acl_len); |
d017931c | 1832 | encode_nops(&hdr); |
cf8cdbe5 | 1833 | return 0; |
029d105e BF |
1834 | } |
1835 | ||
1da177e4 LT |
1836 | /* |
1837 | * Encode a WRITE request | |
1838 | */ | |
8687b63a | 1839 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1840 | { |
1841 | struct xdr_stream xdr; | |
1842 | struct compound_hdr hdr = { | |
66cc0429 | 1843 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1844 | }; |
1da177e4 LT |
1845 | |
1846 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1847 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1848 | encode_putfh(&xdr, args->fh, &hdr); |
1849 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 1850 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 1851 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 1852 | encode_nops(&hdr); |
cf8cdbe5 | 1853 | return 0; |
1da177e4 LT |
1854 | } |
1855 | ||
1856 | /* | |
1857 | * a COMMIT request | |
1858 | */ | |
8687b63a | 1859 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1860 | { |
1861 | struct xdr_stream xdr; | |
1862 | struct compound_hdr hdr = { | |
66cc0429 | 1863 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1864 | }; |
1da177e4 LT |
1865 | |
1866 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1867 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1868 | encode_putfh(&xdr, args->fh, &hdr); |
1869 | encode_commit(&xdr, args, &hdr); | |
1870 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1871 | encode_nops(&hdr); |
cf8cdbe5 | 1872 | return 0; |
1da177e4 LT |
1873 | } |
1874 | ||
1875 | /* | |
1876 | * FSINFO request | |
1877 | */ | |
8687b63a | 1878 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
1879 | { |
1880 | struct xdr_stream xdr; | |
1881 | struct compound_hdr hdr = { | |
66cc0429 | 1882 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1883 | }; |
1da177e4 LT |
1884 | |
1885 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1886 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1887 | encode_putfh(&xdr, args->fh, &hdr); |
1888 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 1889 | encode_nops(&hdr); |
cf8cdbe5 | 1890 | return 0; |
1da177e4 LT |
1891 | } |
1892 | ||
1893 | /* | |
1894 | * a PATHCONF request | |
1895 | */ | |
8687b63a | 1896 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 1897 | { |
1da177e4 LT |
1898 | struct xdr_stream xdr; |
1899 | struct compound_hdr hdr = { | |
66cc0429 | 1900 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1901 | }; |
1da177e4 LT |
1902 | |
1903 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1904 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1905 | encode_putfh(&xdr, args->fh, &hdr); |
1906 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
1907 | &hdr); | |
d017931c | 1908 | encode_nops(&hdr); |
cf8cdbe5 | 1909 | return 0; |
1da177e4 LT |
1910 | } |
1911 | ||
1912 | /* | |
1913 | * a STATFS request | |
1914 | */ | |
8687b63a | 1915 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 1916 | { |
1da177e4 LT |
1917 | struct xdr_stream xdr; |
1918 | struct compound_hdr hdr = { | |
66cc0429 | 1919 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1920 | }; |
1da177e4 LT |
1921 | |
1922 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1923 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1924 | encode_putfh(&xdr, args->fh, &hdr); |
1925 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
1926 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 1927 | encode_nops(&hdr); |
cf8cdbe5 | 1928 | return 0; |
1da177e4 LT |
1929 | } |
1930 | ||
1931 | /* | |
1932 | * GETATTR_BITMAP request | |
1933 | */ | |
43652ad5 BH |
1934 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
1935 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
1936 | { |
1937 | struct xdr_stream xdr; | |
1938 | struct compound_hdr hdr = { | |
66cc0429 | 1939 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 1940 | }; |
1da177e4 LT |
1941 | |
1942 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1943 | encode_compound_hdr(&xdr, req, &hdr); |
43652ad5 | 1944 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
1945 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
1946 | FATTR4_WORD0_LINK_SUPPORT| | |
1947 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
1948 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 1949 | encode_nops(&hdr); |
cf8cdbe5 | 1950 | return 0; |
1da177e4 LT |
1951 | } |
1952 | ||
1953 | /* | |
1954 | * a RENEW request | |
1955 | */ | |
8687b63a | 1956 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1957 | { |
1958 | struct xdr_stream xdr; | |
1959 | struct compound_hdr hdr = { | |
d017931c | 1960 | .nops = 0, |
1da177e4 LT |
1961 | }; |
1962 | ||
1963 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1964 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1965 | encode_renew(&xdr, clp, &hdr); |
d017931c | 1966 | encode_nops(&hdr); |
cf8cdbe5 | 1967 | return 0; |
1da177e4 LT |
1968 | } |
1969 | ||
1970 | /* | |
1971 | * a SETCLIENTID request | |
1972 | */ | |
8687b63a | 1973 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
1974 | { |
1975 | struct xdr_stream xdr; | |
1976 | struct compound_hdr hdr = { | |
d017931c | 1977 | .nops = 0, |
1da177e4 LT |
1978 | }; |
1979 | ||
1980 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1981 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1982 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 1983 | encode_nops(&hdr); |
cf8cdbe5 | 1984 | return 0; |
1da177e4 LT |
1985 | } |
1986 | ||
1987 | /* | |
1988 | * a SETCLIENTID_CONFIRM request | |
1989 | */ | |
8687b63a | 1990 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1991 | { |
1992 | struct xdr_stream xdr; | |
1993 | struct compound_hdr hdr = { | |
d017931c | 1994 | .nops = 0, |
1da177e4 LT |
1995 | }; |
1996 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
1997 | |
1998 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1999 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2000 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2001 | encode_putrootfh(&xdr, &hdr); | |
2002 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2003 | encode_nops(&hdr); |
cf8cdbe5 | 2004 | return 0; |
1da177e4 LT |
2005 | } |
2006 | ||
2007 | /* | |
2008 | * DELEGRETURN request | |
2009 | */ | |
8687b63a | 2010 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2011 | { |
2012 | struct xdr_stream xdr; | |
2013 | struct compound_hdr hdr = { | |
66cc0429 | 2014 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
1da177e4 | 2015 | }; |
1da177e4 LT |
2016 | |
2017 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2018 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2019 | encode_putfh(&xdr, args->fhandle, &hdr); |
2020 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2021 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2022 | encode_nops(&hdr); |
cf8cdbe5 | 2023 | return 0; |
1da177e4 LT |
2024 | } |
2025 | ||
683b57b4 TM |
2026 | /* |
2027 | * Encode FS_LOCATIONS request | |
2028 | */ | |
8687b63a | 2029 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2030 | { |
2031 | struct xdr_stream xdr; | |
2032 | struct compound_hdr hdr = { | |
66cc0429 | 2033 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
683b57b4 | 2034 | }; |
28f56694 | 2035 | uint32_t replen; |
683b57b4 TM |
2036 | |
2037 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2038 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2039 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2040 | encode_lookup(&xdr, args->name, &hdr); | |
28f56694 | 2041 | replen = hdr.replen; /* get the attribute into args->page */ |
cf8cdbe5 AA |
2042 | encode_fs_locations(&xdr, args->bitmask, &hdr); |
2043 | ||
28f56694 | 2044 | xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, |
683b57b4 | 2045 | 0, PAGE_SIZE); |
d017931c | 2046 | encode_nops(&hdr); |
cf8cdbe5 | 2047 | return 0; |
683b57b4 TM |
2048 | } |
2049 | ||
1da177e4 LT |
2050 | /* |
2051 | * START OF "GENERIC" DECODE ROUTINES. | |
2052 | * These may look a little ugly since they are imported from a "generic" | |
2053 | * set of XDR encode/decode routines which are intended to be shared by | |
2054 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2055 | * | |
2056 | * If the pain of reading these is too great, it should be a straightforward | |
2057 | * task to translate them into Linux-specific versions which are more | |
2058 | * consistent with the style used in NFSv2/v3... | |
2059 | */ | |
2060 | #define READ32(x) (x) = ntohl(*p++) | |
2061 | #define READ64(x) do { \ | |
2062 | (x) = (u64)ntohl(*p++) << 32; \ | |
2063 | (x) |= ntohl(*p++); \ | |
2064 | } while (0) | |
2065 | #define READTIME(x) do { \ | |
2066 | p++; \ | |
2067 | (x.tv_sec) = ntohl(*p++); \ | |
2068 | (x.tv_nsec) = ntohl(*p++); \ | |
2069 | } while (0) | |
2070 | #define COPYMEM(x,nbytes) do { \ | |
2071 | memcpy((x), p, nbytes); \ | |
2072 | p += XDR_QUADLEN(nbytes); \ | |
2073 | } while (0) | |
2074 | ||
2075 | #define READ_BUF(nbytes) do { \ | |
2076 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2077 | if (unlikely(!p)) { \ |
fe82a183 | 2078 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2079 | " buffer\n", __func__); \ |
fe82a183 | 2080 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2081 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2082 | return -EIO; \ |
2083 | } \ | |
2084 | } while (0) | |
2085 | ||
683b57b4 | 2086 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2087 | { |
8687b63a | 2088 | __be32 *p; |
1da177e4 LT |
2089 | |
2090 | READ_BUF(4); | |
2091 | READ32(*len); | |
2092 | READ_BUF(*len); | |
2093 | *string = (char *)p; | |
2094 | return 0; | |
2095 | } | |
2096 | ||
2097 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2098 | { | |
8687b63a | 2099 | __be32 *p; |
1da177e4 LT |
2100 | |
2101 | READ_BUF(8); | |
2102 | READ32(hdr->status); | |
2103 | READ32(hdr->taglen); | |
6c0195a4 | 2104 | |
1da177e4 LT |
2105 | READ_BUF(hdr->taglen + 4); |
2106 | hdr->tag = (char *)p; | |
2107 | p += XDR_QUADLEN(hdr->taglen); | |
2108 | READ32(hdr->nops); | |
aadf6152 BH |
2109 | if (unlikely(hdr->nops < 1)) |
2110 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2111 | return 0; |
2112 | } | |
2113 | ||
2114 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2115 | { | |
8687b63a | 2116 | __be32 *p; |
1da177e4 LT |
2117 | uint32_t opnum; |
2118 | int32_t nfserr; | |
2119 | ||
2120 | READ_BUF(8); | |
2121 | READ32(opnum); | |
2122 | if (opnum != expected) { | |
fe82a183 CL |
2123 | dprintk("nfs: Server returned operation" |
2124 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2125 | opnum, expected); |
2126 | return -EIO; | |
2127 | } | |
2128 | READ32(nfserr); | |
2129 | if (nfserr != NFS_OK) | |
856dff3d | 2130 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2131 | return 0; |
2132 | } | |
2133 | ||
2134 | /* Dummy routine */ | |
adfa6f98 | 2135 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2136 | { |
8687b63a | 2137 | __be32 *p; |
683b57b4 | 2138 | unsigned int strlen; |
1da177e4 LT |
2139 | char *str; |
2140 | ||
2141 | READ_BUF(12); | |
2142 | return decode_opaque_inline(xdr, &strlen, &str); | |
2143 | } | |
2144 | ||
2145 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2146 | { | |
8687b63a AV |
2147 | uint32_t bmlen; |
2148 | __be32 *p; | |
1da177e4 LT |
2149 | |
2150 | READ_BUF(4); | |
2151 | READ32(bmlen); | |
2152 | ||
2153 | bitmap[0] = bitmap[1] = 0; | |
2154 | READ_BUF((bmlen << 2)); | |
2155 | if (bmlen > 0) { | |
2156 | READ32(bitmap[0]); | |
2157 | if (bmlen > 1) | |
2158 | READ32(bitmap[1]); | |
2159 | } | |
2160 | return 0; | |
2161 | } | |
2162 | ||
8687b63a | 2163 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2164 | { |
8687b63a | 2165 | __be32 *p; |
1da177e4 LT |
2166 | |
2167 | READ_BUF(4); | |
2168 | READ32(*attrlen); | |
2169 | *savep = xdr->p; | |
2170 | return 0; | |
2171 | } | |
2172 | ||
2173 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2174 | { | |
2175 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2176 | decode_attr_bitmap(xdr, bitmask); | |
2177 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2178 | } else | |
2179 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2180 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2181 | return 0; |
2182 | } | |
2183 | ||
2184 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2185 | { | |
8687b63a | 2186 | __be32 *p; |
409924e4 | 2187 | int ret = 0; |
1da177e4 LT |
2188 | |
2189 | *type = 0; | |
2190 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2191 | return -EIO; | |
2192 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2193 | READ_BUF(4); | |
2194 | READ32(*type); | |
2195 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2196 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2197 | return -EIO; |
2198 | } | |
2199 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2200 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2201 | } |
bca79478 | 2202 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2203 | return ret; |
1da177e4 LT |
2204 | } |
2205 | ||
2206 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2207 | { | |
8687b63a | 2208 | __be32 *p; |
409924e4 | 2209 | int ret = 0; |
1da177e4 LT |
2210 | |
2211 | *change = 0; | |
2212 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2213 | return -EIO; | |
2214 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2215 | READ_BUF(8); | |
2216 | READ64(*change); | |
2217 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2218 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2219 | } |
3110ff80 | 2220 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2221 | (unsigned long long)*change); |
409924e4 | 2222 | return ret; |
1da177e4 LT |
2223 | } |
2224 | ||
2225 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2226 | { | |
8687b63a | 2227 | __be32 *p; |
409924e4 | 2228 | int ret = 0; |
1da177e4 LT |
2229 | |
2230 | *size = 0; | |
2231 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2232 | return -EIO; | |
2233 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2234 | READ_BUF(8); | |
2235 | READ64(*size); | |
2236 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2237 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2238 | } |
3110ff80 | 2239 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2240 | return ret; |
1da177e4 LT |
2241 | } |
2242 | ||
2243 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2244 | { | |
8687b63a | 2245 | __be32 *p; |
1da177e4 LT |
2246 | |
2247 | *res = 0; | |
2248 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2249 | return -EIO; | |
2250 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2251 | READ_BUF(4); | |
2252 | READ32(*res); | |
2253 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2254 | } | |
3110ff80 | 2255 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2256 | return 0; |
2257 | } | |
2258 | ||
2259 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2260 | { | |
8687b63a | 2261 | __be32 *p; |
1da177e4 LT |
2262 | |
2263 | *res = 0; | |
2264 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2265 | return -EIO; | |
2266 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2267 | READ_BUF(4); | |
2268 | READ32(*res); | |
2269 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2270 | } | |
3110ff80 | 2271 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2272 | return 0; |
2273 | } | |
2274 | ||
8b4bdcf8 | 2275 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2276 | { |
8687b63a | 2277 | __be32 *p; |
409924e4 | 2278 | int ret = 0; |
1da177e4 LT |
2279 | |
2280 | fsid->major = 0; | |
2281 | fsid->minor = 0; | |
2282 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2283 | return -EIO; | |
2284 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2285 | READ_BUF(16); | |
2286 | READ64(fsid->major); | |
2287 | READ64(fsid->minor); | |
2288 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2289 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2290 | } |
3110ff80 | 2291 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2292 | (unsigned long long)fsid->major, |
2293 | (unsigned long long)fsid->minor); | |
409924e4 | 2294 | return ret; |
1da177e4 LT |
2295 | } |
2296 | ||
2297 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2298 | { | |
8687b63a | 2299 | __be32 *p; |
1da177e4 LT |
2300 | |
2301 | *res = 60; | |
2302 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2303 | return -EIO; | |
2304 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2305 | READ_BUF(4); | |
2306 | READ32(*res); | |
2307 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2308 | } | |
3110ff80 | 2309 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2310 | return 0; |
2311 | } | |
2312 | ||
2313 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2314 | { | |
8687b63a | 2315 | __be32 *p; |
1da177e4 LT |
2316 | |
2317 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2318 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2319 | return -EIO; | |
2320 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2321 | READ_BUF(4); | |
2322 | READ32(*res); | |
2323 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2324 | } | |
3110ff80 | 2325 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2326 | return 0; |
2327 | } | |
2328 | ||
2329 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2330 | { | |
8687b63a | 2331 | __be32 *p; |
409924e4 | 2332 | int ret = 0; |
1da177e4 LT |
2333 | |
2334 | *fileid = 0; | |
2335 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2336 | return -EIO; | |
2337 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2338 | READ_BUF(8); | |
2339 | READ64(*fileid); | |
2340 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2341 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2342 | } |
3110ff80 | 2343 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2344 | return ret; |
1da177e4 LT |
2345 | } |
2346 | ||
99baf625 MN |
2347 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2348 | { | |
8687b63a | 2349 | __be32 *p; |
409924e4 | 2350 | int ret = 0; |
99baf625 MN |
2351 | |
2352 | *fileid = 0; | |
2353 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2354 | return -EIO; | |
2355 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2356 | READ_BUF(8); | |
2357 | READ64(*fileid); | |
2358 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2359 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2360 | } |
3110ff80 | 2361 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2362 | return ret; |
99baf625 MN |
2363 | } |
2364 | ||
1da177e4 LT |
2365 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2366 | { | |
8687b63a | 2367 | __be32 *p; |
1da177e4 LT |
2368 | int status = 0; |
2369 | ||
2370 | *res = 0; | |
2371 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2372 | return -EIO; | |
2373 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2374 | READ_BUF(8); | |
2375 | READ64(*res); | |
2376 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2377 | } | |
3110ff80 | 2378 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2379 | return status; |
2380 | } | |
2381 | ||
2382 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2383 | { | |
8687b63a | 2384 | __be32 *p; |
1da177e4 LT |
2385 | int status = 0; |
2386 | ||
2387 | *res = 0; | |
2388 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2389 | return -EIO; | |
2390 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2391 | READ_BUF(8); | |
2392 | READ64(*res); | |
2393 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2394 | } | |
3110ff80 | 2395 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2396 | return status; |
2397 | } | |
2398 | ||
2399 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2400 | { | |
8687b63a | 2401 | __be32 *p; |
1da177e4 LT |
2402 | int status = 0; |
2403 | ||
2404 | *res = 0; | |
2405 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2406 | return -EIO; | |
2407 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2408 | READ_BUF(8); | |
2409 | READ64(*res); | |
2410 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2411 | } | |
3110ff80 | 2412 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2413 | return status; |
2414 | } | |
2415 | ||
7aaa0b3b MN |
2416 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2417 | { | |
464ad6b1 | 2418 | u32 n; |
8687b63a | 2419 | __be32 *p; |
7aaa0b3b MN |
2420 | int status = 0; |
2421 | ||
2422 | READ_BUF(4); | |
2423 | READ32(n); | |
33a43f28 AA |
2424 | if (n == 0) |
2425 | goto root_path; | |
7aaa0b3b MN |
2426 | dprintk("path "); |
2427 | path->ncomponents = 0; | |
2428 | while (path->ncomponents < n) { | |
2429 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2430 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2431 | if (unlikely(status != 0)) | |
2432 | goto out_eio; | |
2433 | if (path->ncomponents != n) | |
2434 | dprintk("/"); | |
2435 | dprintk("%s", component->data); | |
2436 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2437 | path->ncomponents++; | |
2438 | else { | |
2439 | dprintk("cannot parse %d components in path\n", n); | |
2440 | goto out_eio; | |
2441 | } | |
2442 | } | |
2443 | out: | |
2444 | dprintk("\n"); | |
2445 | return status; | |
33a43f28 AA |
2446 | root_path: |
2447 | /* a root pathname is sent as a zero component4 */ | |
2448 | path->ncomponents = 1; | |
2449 | path->components[0].len=0; | |
2450 | path->components[0].data=NULL; | |
2451 | dprintk("path /\n"); | |
2452 | goto out; | |
7aaa0b3b MN |
2453 | out_eio: |
2454 | dprintk(" status %d", status); | |
2455 | status = -EIO; | |
2456 | goto out; | |
2457 | } | |
2458 | ||
2459 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2460 | { |
2461 | int n; | |
8687b63a | 2462 | __be32 *p; |
683b57b4 TM |
2463 | int status = -EIO; |
2464 | ||
2465 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2466 | goto out; | |
2467 | status = 0; | |
2468 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2469 | goto out; | |
3110ff80 | 2470 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2471 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2472 | if (unlikely(status != 0)) |
2473 | goto out; | |
2474 | READ_BUF(4); | |
2475 | READ32(n); | |
2476 | if (n <= 0) | |
2477 | goto out_eio; | |
2478 | res->nlocations = 0; | |
2479 | while (res->nlocations < n) { | |
464ad6b1 | 2480 | u32 m; |
7aaa0b3b | 2481 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2482 | |
7aaa0b3b MN |
2483 | READ_BUF(4); |
2484 | READ32(m); | |
7aaa0b3b MN |
2485 | |
2486 | loc->nservers = 0; | |
3110ff80 | 2487 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2488 | while (loc->nservers < m) { |
2489 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2490 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2491 | if (unlikely(status != 0)) | |
2492 | goto out_eio; | |
2493 | dprintk("%s ", server->data); | |
2494 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2495 | loc->nservers++; | |
2496 | else { | |
464ad6b1 CL |
2497 | unsigned int i; |
2498 | dprintk("%s: using first %u of %u servers " | |
2499 | "returned for location %u\n", | |
3110ff80 | 2500 | __func__, |
464ad6b1 CL |
2501 | NFS4_FS_LOCATION_MAXSERVERS, |
2502 | m, res->nlocations); | |
7aaa0b3b | 2503 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2504 | unsigned int len; |
7aaa0b3b MN |
2505 | char *data; |
2506 | status = decode_opaque_inline(xdr, &len, &data); | |
2507 | if (unlikely(status != 0)) | |
2508 | goto out_eio; | |
2509 | } | |
2510 | } | |
2511 | } | |
2512 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2513 | if (unlikely(status != 0)) |
2514 | goto out_eio; | |
7aaa0b3b | 2515 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2516 | res->nlocations++; |
2517 | } | |
409924e4 TM |
2518 | if (res->nlocations != 0) |
2519 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2520 | out: |
3110ff80 | 2521 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2522 | return status; |
2523 | out_eio: | |
2524 | status = -EIO; | |
2525 | goto out; | |
2526 | } | |
2527 | ||
1da177e4 LT |
2528 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2529 | { | |
8687b63a | 2530 | __be32 *p; |
1da177e4 LT |
2531 | int status = 0; |
2532 | ||
2533 | *res = 0; | |
2534 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2535 | return -EIO; | |
2536 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2537 | READ_BUF(8); | |
2538 | READ64(*res); | |
2539 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2540 | } | |
3110ff80 | 2541 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2542 | return status; |
2543 | } | |
2544 | ||
2545 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2546 | { | |
8687b63a | 2547 | __be32 *p; |
1da177e4 LT |
2548 | int status = 0; |
2549 | ||
2550 | *maxlink = 1; | |
2551 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2552 | return -EIO; | |
2553 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2554 | READ_BUF(4); | |
2555 | READ32(*maxlink); | |
2556 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2557 | } | |
3110ff80 | 2558 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2559 | return status; |
2560 | } | |
2561 | ||
2562 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2563 | { | |
8687b63a | 2564 | __be32 *p; |
1da177e4 LT |
2565 | int status = 0; |
2566 | ||
2567 | *maxname = 1024; | |
2568 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2569 | return -EIO; | |
2570 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2571 | READ_BUF(4); | |
2572 | READ32(*maxname); | |
2573 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2574 | } | |
3110ff80 | 2575 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2576 | return status; |
2577 | } | |
2578 | ||
2579 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2580 | { | |
8687b63a | 2581 | __be32 *p; |
1da177e4 LT |
2582 | int status = 0; |
2583 | ||
2584 | *res = 1024; | |
2585 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2586 | return -EIO; | |
2587 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2588 | uint64_t maxread; | |
2589 | READ_BUF(8); | |
2590 | READ64(maxread); | |
2591 | if (maxread > 0x7FFFFFFF) | |
2592 | maxread = 0x7FFFFFFF; | |
2593 | *res = (uint32_t)maxread; | |
2594 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2595 | } | |
3110ff80 | 2596 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2597 | return status; |
2598 | } | |
2599 | ||
2600 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2601 | { | |
8687b63a | 2602 | __be32 *p; |
1da177e4 LT |
2603 | int status = 0; |
2604 | ||
2605 | *res = 1024; | |
2606 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2607 | return -EIO; | |
2608 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2609 | uint64_t maxwrite; | |
2610 | READ_BUF(8); | |
2611 | READ64(maxwrite); | |
2612 | if (maxwrite > 0x7FFFFFFF) | |
2613 | maxwrite = 0x7FFFFFFF; | |
2614 | *res = (uint32_t)maxwrite; | |
2615 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2616 | } | |
3110ff80 | 2617 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2618 | return status; |
2619 | } | |
2620 | ||
bca79478 | 2621 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 2622 | { |
bca79478 | 2623 | uint32_t tmp; |
8687b63a | 2624 | __be32 *p; |
409924e4 | 2625 | int ret = 0; |
1da177e4 LT |
2626 | |
2627 | *mode = 0; | |
2628 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2629 | return -EIO; | |
2630 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2631 | READ_BUF(4); | |
bca79478 TM |
2632 | READ32(tmp); |
2633 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 2634 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 2635 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 2636 | } |
3110ff80 | 2637 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 2638 | return ret; |
1da177e4 LT |
2639 | } |
2640 | ||
2641 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2642 | { | |
8687b63a | 2643 | __be32 *p; |
409924e4 | 2644 | int ret = 0; |
1da177e4 LT |
2645 | |
2646 | *nlink = 1; | |
2647 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2648 | return -EIO; | |
2649 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2650 | READ_BUF(4); | |
2651 | READ32(*nlink); | |
2652 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 2653 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 2654 | } |
3110ff80 | 2655 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 2656 | return ret; |
1da177e4 LT |
2657 | } |
2658 | ||
2e42c3e2 | 2659 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2660 | { |
8687b63a AV |
2661 | uint32_t len; |
2662 | __be32 *p; | |
409924e4 | 2663 | int ret = 0; |
1da177e4 LT |
2664 | |
2665 | *uid = -2; | |
2666 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2667 | return -EIO; | |
2668 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2669 | READ_BUF(4); | |
2670 | READ32(len); | |
2671 | READ_BUF(len); | |
2672 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2673 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
2674 | ret = NFS_ATTR_FATTR_OWNER; | |
2675 | else | |
1da177e4 | 2676 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 2677 | __func__); |
1da177e4 | 2678 | } else |
fe82a183 | 2679 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2680 | __func__, len); |
1da177e4 LT |
2681 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
2682 | } | |
3110ff80 | 2683 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 2684 | return ret; |
1da177e4 LT |
2685 | } |
2686 | ||
2e42c3e2 | 2687 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2688 | { |
8687b63a AV |
2689 | uint32_t len; |
2690 | __be32 *p; | |
409924e4 | 2691 | int ret = 0; |
1da177e4 LT |
2692 | |
2693 | *gid = -2; | |
2694 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2695 | return -EIO; | |
2696 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2697 | READ_BUF(4); | |
2698 | READ32(len); | |
2699 | READ_BUF(len); | |
2700 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2701 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
2702 | ret = NFS_ATTR_FATTR_GROUP; | |
2703 | else | |
1da177e4 | 2704 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 2705 | __func__); |
1da177e4 | 2706 | } else |
fe82a183 | 2707 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2708 | __func__, len); |
1da177e4 LT |
2709 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
2710 | } | |
3110ff80 | 2711 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 2712 | return ret; |
1da177e4 LT |
2713 | } |
2714 | ||
2715 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2716 | { | |
8687b63a AV |
2717 | uint32_t major = 0, minor = 0; |
2718 | __be32 *p; | |
409924e4 | 2719 | int ret = 0; |
1da177e4 LT |
2720 | |
2721 | *rdev = MKDEV(0,0); | |
2722 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2723 | return -EIO; | |
2724 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2725 | dev_t tmp; | |
2726 | ||
2727 | READ_BUF(8); | |
2728 | READ32(major); | |
2729 | READ32(minor); | |
2730 | tmp = MKDEV(major, minor); | |
2731 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2732 | *rdev = tmp; | |
2733 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 2734 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 2735 | } |
3110ff80 | 2736 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 2737 | return ret; |
1da177e4 LT |
2738 | } |
2739 | ||
2740 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2741 | { | |
8687b63a | 2742 | __be32 *p; |
1da177e4 LT |
2743 | int status = 0; |
2744 | ||
2745 | *res = 0; | |
2746 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2747 | return -EIO; | |
2748 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2749 | READ_BUF(8); | |
2750 | READ64(*res); | |
2751 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2752 | } | |
3110ff80 | 2753 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2754 | return status; |
2755 | } | |
2756 | ||
2757 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2758 | { | |
8687b63a | 2759 | __be32 *p; |
1da177e4 LT |
2760 | int status = 0; |
2761 | ||
2762 | *res = 0; | |
2763 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2764 | return -EIO; | |
2765 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2766 | READ_BUF(8); | |
2767 | READ64(*res); | |
2768 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2769 | } | |
3110ff80 | 2770 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2771 | return status; |
2772 | } | |
2773 | ||
2774 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2775 | { | |
8687b63a | 2776 | __be32 *p; |
1da177e4 LT |
2777 | int status = 0; |
2778 | ||
2779 | *res = 0; | |
2780 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2781 | return -EIO; | |
2782 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2783 | READ_BUF(8); | |
2784 | READ64(*res); | |
2785 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2786 | } | |
3110ff80 | 2787 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2788 | return status; |
2789 | } | |
2790 | ||
2791 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2792 | { | |
8687b63a | 2793 | __be32 *p; |
409924e4 | 2794 | int ret = 0; |
1da177e4 LT |
2795 | |
2796 | *used = 0; | |
2797 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2798 | return -EIO; | |
2799 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2800 | READ_BUF(8); | |
2801 | READ64(*used); | |
2802 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 2803 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 2804 | } |
3110ff80 | 2805 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 2806 | (unsigned long long)*used); |
409924e4 | 2807 | return ret; |
1da177e4 LT |
2808 | } |
2809 | ||
2810 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2811 | { | |
8687b63a | 2812 | __be32 *p; |
1da177e4 LT |
2813 | uint64_t sec; |
2814 | uint32_t nsec; | |
2815 | ||
2816 | READ_BUF(12); | |
2817 | READ64(sec); | |
2818 | READ32(nsec); | |
2819 | time->tv_sec = (time_t)sec; | |
2820 | time->tv_nsec = (long)nsec; | |
2821 | return 0; | |
2822 | } | |
2823 | ||
2824 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2825 | { | |
2826 | int status = 0; | |
2827 | ||
2828 | time->tv_sec = 0; | |
2829 | time->tv_nsec = 0; | |
2830 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
2831 | return -EIO; | |
2832 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2833 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2834 | if (status == 0) |
2835 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
2836 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
2837 | } | |
3110ff80 | 2838 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2839 | return status; |
2840 | } | |
2841 | ||
2842 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2843 | { | |
2844 | int status = 0; | |
2845 | ||
2846 | time->tv_sec = 0; | |
2847 | time->tv_nsec = 0; | |
2848 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
2849 | return -EIO; | |
2850 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
2851 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2852 | if (status == 0) |
2853 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
2854 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
2855 | } | |
3110ff80 | 2856 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2857 | return status; |
2858 | } | |
2859 | ||
2860 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2861 | { | |
2862 | int status = 0; | |
2863 | ||
2864 | time->tv_sec = 0; | |
2865 | time->tv_nsec = 0; | |
2866 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
2867 | return -EIO; | |
2868 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
2869 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2870 | if (status == 0) |
2871 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
2872 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
2873 | } | |
3110ff80 | 2874 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2875 | return status; |
2876 | } | |
2877 | ||
8687b63a | 2878 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
2879 | { |
2880 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
2881 | unsigned int nwords = xdr->p - savep; | |
2882 | ||
2883 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
2884 | dprintk("%s: server returned incorrect attribute length: " |
2885 | "%u %c %u\n", | |
3110ff80 | 2886 | __func__, |
1da177e4 LT |
2887 | attrwords << 2, |
2888 | (attrwords < nwords) ? '<' : '>', | |
2889 | nwords << 2); | |
2890 | return -EIO; | |
2891 | } | |
2892 | return 0; | |
2893 | } | |
2894 | ||
2895 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2896 | { | |
8687b63a | 2897 | __be32 *p; |
1da177e4 LT |
2898 | |
2899 | READ_BUF(20); | |
2900 | READ32(cinfo->atomic); | |
2901 | READ64(cinfo->before); | |
2902 | READ64(cinfo->after); | |
2903 | return 0; | |
2904 | } | |
2905 | ||
2906 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
2907 | { | |
8687b63a | 2908 | __be32 *p; |
1da177e4 LT |
2909 | uint32_t supp, acc; |
2910 | int status; | |
2911 | ||
2912 | status = decode_op_hdr(xdr, OP_ACCESS); | |
2913 | if (status) | |
2914 | return status; | |
2915 | READ_BUF(8); | |
2916 | READ32(supp); | |
2917 | READ32(acc); | |
2918 | access->supported = supp; | |
2919 | access->access = acc; | |
2920 | return 0; | |
2921 | } | |
2922 | ||
2923 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
2924 | { | |
8687b63a | 2925 | __be32 *p; |
1da177e4 LT |
2926 | int status; |
2927 | ||
2928 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
2929 | if (status != -EIO) |
2930 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
2931 | if (status) |
2932 | return status; | |
8ae20abd TM |
2933 | READ_BUF(NFS4_STATEID_SIZE); |
2934 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
2935 | return 0; |
2936 | } | |
2937 | ||
2938 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
2939 | { | |
8687b63a | 2940 | __be32 *p; |
1da177e4 LT |
2941 | int status; |
2942 | ||
2943 | status = decode_op_hdr(xdr, OP_COMMIT); | |
2944 | if (status) | |
2945 | return status; | |
2946 | READ_BUF(8); | |
2947 | COPYMEM(res->verf->verifier, 8); | |
2948 | return 0; | |
2949 | } | |
2950 | ||
2951 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2952 | { | |
8687b63a | 2953 | __be32 *p; |
1da177e4 LT |
2954 | uint32_t bmlen; |
2955 | int status; | |
2956 | ||
2957 | status = decode_op_hdr(xdr, OP_CREATE); | |
2958 | if (status) | |
2959 | return status; | |
2960 | if ((status = decode_change_info(xdr, cinfo))) | |
2961 | return status; | |
2962 | READ_BUF(4); | |
2963 | READ32(bmlen); | |
2964 | READ_BUF(bmlen << 2); | |
2965 | return 0; | |
2966 | } | |
2967 | ||
2968 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
2969 | { | |
8687b63a | 2970 | __be32 *savep; |
6c0195a4 | 2971 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
2972 | int status; |
2973 | ||
2974 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
2975 | goto xdr_error; | |
2976 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2977 | goto xdr_error; | |
2978 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2979 | goto xdr_error; | |
2980 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
2981 | goto xdr_error; | |
2982 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
2983 | goto xdr_error; | |
2984 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
2985 | goto xdr_error; | |
2986 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
2987 | goto xdr_error; | |
2988 | status = verify_attr_len(xdr, savep, attrlen); | |
2989 | xdr_error: | |
3110ff80 | 2990 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
2991 | return status; |
2992 | } | |
6c0195a4 | 2993 | |
1da177e4 LT |
2994 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
2995 | { | |
8687b63a | 2996 | __be32 *savep; |
6c0195a4 | 2997 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 2998 | int status; |
6c0195a4 | 2999 | |
1da177e4 LT |
3000 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3001 | goto xdr_error; | |
3002 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3003 | goto xdr_error; | |
3004 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3005 | goto xdr_error; | |
3006 | ||
3007 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3008 | goto xdr_error; | |
3009 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3010 | goto xdr_error; | |
3011 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3012 | goto xdr_error; | |
3013 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3014 | goto xdr_error; | |
3015 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3016 | goto xdr_error; | |
3017 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3018 | goto xdr_error; | |
3019 | ||
3020 | status = verify_attr_len(xdr, savep, attrlen); | |
3021 | xdr_error: | |
3110ff80 | 3022 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3023 | return status; |
3024 | } | |
3025 | ||
3026 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3027 | { | |
8687b63a | 3028 | __be32 *savep; |
6c0195a4 | 3029 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3030 | int status; |
6c0195a4 | 3031 | |
1da177e4 LT |
3032 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3033 | goto xdr_error; | |
3034 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3035 | goto xdr_error; | |
3036 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3037 | goto xdr_error; | |
3038 | ||
3039 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3040 | goto xdr_error; | |
3041 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3042 | goto xdr_error; | |
3043 | ||
3044 | status = verify_attr_len(xdr, savep, attrlen); | |
3045 | xdr_error: | |
3110ff80 | 3046 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3047 | return status; |
3048 | } | |
3049 | ||
3050 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3051 | { | |
8687b63a | 3052 | __be32 *savep; |
1da177e4 LT |
3053 | uint32_t attrlen, |
3054 | bitmap[2] = {0}, | |
3055 | type; | |
bca79478 TM |
3056 | int status; |
3057 | umode_t fmode = 0; | |
99baf625 | 3058 | uint64_t fileid; |
1da177e4 | 3059 | |
f26c7a78 TM |
3060 | status = decode_op_hdr(xdr, OP_GETATTR); |
3061 | if (status < 0) | |
1da177e4 | 3062 | goto xdr_error; |
f26c7a78 TM |
3063 | |
3064 | status = decode_attr_bitmap(xdr, bitmap); | |
3065 | if (status < 0) | |
1da177e4 LT |
3066 | goto xdr_error; |
3067 | ||
f26c7a78 TM |
3068 | status = decode_attr_length(xdr, &attrlen, &savep); |
3069 | if (status < 0) | |
1da177e4 LT |
3070 | goto xdr_error; |
3071 | ||
3072 | ||
f26c7a78 TM |
3073 | status = decode_attr_type(xdr, bitmap, &type); |
3074 | if (status < 0) | |
1da177e4 | 3075 | goto xdr_error; |
409924e4 TM |
3076 | fattr->mode = 0; |
3077 | if (status != 0) { | |
3078 | fattr->mode |= nfs_type2fmt[type]; | |
3079 | fattr->valid |= status; | |
3080 | } | |
1da177e4 | 3081 | |
f26c7a78 TM |
3082 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3083 | if (status < 0) | |
1da177e4 | 3084 | goto xdr_error; |
409924e4 | 3085 | fattr->valid |= status; |
f26c7a78 TM |
3086 | |
3087 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3088 | if (status < 0) | |
1da177e4 | 3089 | goto xdr_error; |
409924e4 | 3090 | fattr->valid |= status; |
f26c7a78 TM |
3091 | |
3092 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3093 | if (status < 0) | |
1da177e4 | 3094 | goto xdr_error; |
409924e4 | 3095 | fattr->valid |= status; |
f26c7a78 TM |
3096 | |
3097 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3098 | if (status < 0) | |
1da177e4 | 3099 | goto xdr_error; |
409924e4 | 3100 | fattr->valid |= status; |
f26c7a78 TM |
3101 | |
3102 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3103 | struct nfs4_fs_locations, |
f26c7a78 TM |
3104 | fattr)); |
3105 | if (status < 0) | |
683b57b4 | 3106 | goto xdr_error; |
409924e4 | 3107 | fattr->valid |= status; |
f26c7a78 TM |
3108 | |
3109 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3110 | if (status < 0) | |
1da177e4 | 3111 | goto xdr_error; |
409924e4 TM |
3112 | if (status != 0) { |
3113 | fattr->mode |= fmode; | |
3114 | fattr->valid |= status; | |
3115 | } | |
f26c7a78 TM |
3116 | |
3117 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3118 | if (status < 0) | |
1da177e4 | 3119 | goto xdr_error; |
409924e4 | 3120 | fattr->valid |= status; |
f26c7a78 TM |
3121 | |
3122 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3123 | if (status < 0) | |
1da177e4 | 3124 | goto xdr_error; |
409924e4 | 3125 | fattr->valid |= status; |
f26c7a78 TM |
3126 | |
3127 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3128 | if (status < 0) | |
1da177e4 | 3129 | goto xdr_error; |
409924e4 | 3130 | fattr->valid |= status; |
f26c7a78 TM |
3131 | |
3132 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3133 | if (status < 0) | |
1da177e4 | 3134 | goto xdr_error; |
409924e4 | 3135 | fattr->valid |= status; |
f26c7a78 TM |
3136 | |
3137 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3138 | if (status < 0) | |
1da177e4 | 3139 | goto xdr_error; |
409924e4 | 3140 | fattr->valid |= status; |
f26c7a78 TM |
3141 | |
3142 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3143 | if (status < 0) | |
1da177e4 | 3144 | goto xdr_error; |
409924e4 | 3145 | fattr->valid |= status; |
f26c7a78 TM |
3146 | |
3147 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3148 | if (status < 0) | |
1da177e4 | 3149 | goto xdr_error; |
409924e4 | 3150 | fattr->valid |= status; |
f26c7a78 TM |
3151 | |
3152 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3153 | if (status < 0) | |
1da177e4 | 3154 | goto xdr_error; |
409924e4 | 3155 | fattr->valid |= status; |
f26c7a78 TM |
3156 | |
3157 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3158 | if (status < 0) | |
99baf625 | 3159 | goto xdr_error; |
409924e4 | 3160 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3161 | fattr->fileid = fileid; |
409924e4 TM |
3162 | fattr->valid |= status; |
3163 | } | |
f26c7a78 TM |
3164 | |
3165 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3166 | xdr_error: |
3110ff80 | 3167 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3168 | return status; |
3169 | } | |
3170 | ||
3171 | ||
3172 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3173 | { | |
8687b63a | 3174 | __be32 *savep; |
1da177e4 LT |
3175 | uint32_t attrlen, bitmap[2]; |
3176 | int status; | |
3177 | ||
3178 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3179 | goto xdr_error; | |
3180 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3181 | goto xdr_error; | |
3182 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3183 | goto xdr_error; | |
3184 | ||
3185 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3186 | ||
3187 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3188 | goto xdr_error; | |
3189 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3190 | goto xdr_error; | |
3191 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3192 | goto xdr_error; | |
3193 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3194 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3195 | goto xdr_error; | |
3196 | fsinfo->wtpref = fsinfo->wtmax; | |
3197 | ||
3198 | status = verify_attr_len(xdr, savep, attrlen); | |
3199 | xdr_error: | |
3110ff80 | 3200 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3201 | return status; |
3202 | } | |
3203 | ||
3204 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3205 | { | |
8687b63a | 3206 | __be32 *p; |
1da177e4 LT |
3207 | uint32_t len; |
3208 | int status; | |
3209 | ||
9936781d TM |
3210 | /* Zero handle first to allow comparisons */ |
3211 | memset(fh, 0, sizeof(*fh)); | |
3212 | ||
1da177e4 LT |
3213 | status = decode_op_hdr(xdr, OP_GETFH); |
3214 | if (status) | |
3215 | return status; | |
1da177e4 LT |
3216 | |
3217 | READ_BUF(4); | |
3218 | READ32(len); | |
3219 | if (len > NFS4_FHSIZE) | |
3220 | return -EIO; | |
3221 | fh->size = len; | |
3222 | READ_BUF(len); | |
3223 | COPYMEM(fh->data, len); | |
3224 | return 0; | |
3225 | } | |
3226 | ||
3227 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3228 | { | |
3229 | int status; | |
6c0195a4 | 3230 | |
1da177e4 LT |
3231 | status = decode_op_hdr(xdr, OP_LINK); |
3232 | if (status) | |
3233 | return status; | |
3234 | return decode_change_info(xdr, cinfo); | |
3235 | } | |
3236 | ||
3237 | /* | |
3238 | * We create the owner, so we know a proper owner.id length is 4. | |
3239 | */ | |
911d1aaf | 3240 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3241 | { |
911d1aaf | 3242 | uint64_t offset, length, clientid; |
8687b63a | 3243 | __be32 *p; |
911d1aaf | 3244 | uint32_t namelen, type; |
1da177e4 LT |
3245 | |
3246 | READ_BUF(32); | |
911d1aaf TM |
3247 | READ64(offset); |
3248 | READ64(length); | |
3249 | READ32(type); | |
3250 | if (fl != NULL) { | |
3251 | fl->fl_start = (loff_t)offset; | |
3252 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3253 | if (length == ~(uint64_t)0) | |
3254 | fl->fl_end = OFFSET_MAX; | |
3255 | fl->fl_type = F_WRLCK; | |
3256 | if (type & 1) | |
3257 | fl->fl_type = F_RDLCK; | |
3258 | fl->fl_pid = 0; | |
3259 | } | |
3260 | READ64(clientid); | |
1da177e4 LT |
3261 | READ32(namelen); |
3262 | READ_BUF(namelen); | |
1da177e4 LT |
3263 | return -NFS4ERR_DENIED; |
3264 | } | |
3265 | ||
911d1aaf | 3266 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3267 | { |
8687b63a | 3268 | __be32 *p; |
1da177e4 LT |
3269 | int status; |
3270 | ||
3271 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3272 | if (status == -EIO) |
3273 | goto out; | |
1da177e4 | 3274 | if (status == 0) { |
8ae20abd TM |
3275 | READ_BUF(NFS4_STATEID_SIZE); |
3276 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3277 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3278 | status = decode_lock_denied(xdr, NULL); |
3279 | if (res->open_seqid != NULL) | |
3280 | nfs_increment_open_seqid(status, res->open_seqid); | |
3281 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3282 | out: | |
1da177e4 LT |
3283 | return status; |
3284 | } | |
3285 | ||
911d1aaf | 3286 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3287 | { |
3288 | int status; | |
3289 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3290 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3291 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3292 | return status; |
3293 | } | |
3294 | ||
911d1aaf | 3295 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3296 | { |
8687b63a | 3297 | __be32 *p; |
1da177e4 LT |
3298 | int status; |
3299 | ||
3300 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3301 | if (status != -EIO) |
3302 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3303 | if (status == 0) { |
8ae20abd TM |
3304 | READ_BUF(NFS4_STATEID_SIZE); |
3305 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3306 | } |
3307 | return status; | |
3308 | } | |
3309 | ||
3310 | static int decode_lookup(struct xdr_stream *xdr) | |
3311 | { | |
3312 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3313 | } | |
3314 | ||
3315 | /* This is too sick! */ | |
3316 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3317 | { | |
05d564fe | 3318 | __be32 *p; |
1da177e4 LT |
3319 | uint32_t limit_type, nblocks, blocksize; |
3320 | ||
3321 | READ_BUF(12); | |
3322 | READ32(limit_type); | |
3323 | switch (limit_type) { | |
05d564fe AA |
3324 | case 1: |
3325 | READ64(*maxsize); | |
3326 | break; | |
3327 | case 2: | |
3328 | READ32(nblocks); | |
3329 | READ32(blocksize); | |
3330 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3331 | } |
3332 | return 0; | |
3333 | } | |
3334 | ||
3335 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3336 | { | |
05d564fe AA |
3337 | __be32 *p; |
3338 | uint32_t delegation_type; | |
1da177e4 LT |
3339 | |
3340 | READ_BUF(4); | |
3341 | READ32(delegation_type); | |
3342 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3343 | res->delegation_type = 0; | |
3344 | return 0; | |
3345 | } | |
8ae20abd TM |
3346 | READ_BUF(NFS4_STATEID_SIZE+4); |
3347 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3348 | READ32(res->do_recall); |
05d564fe | 3349 | |
1da177e4 | 3350 | switch (delegation_type) { |
05d564fe AA |
3351 | case NFS4_OPEN_DELEGATE_READ: |
3352 | res->delegation_type = FMODE_READ; | |
3353 | break; | |
3354 | case NFS4_OPEN_DELEGATE_WRITE: | |
3355 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3356 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3357 | return -EIO; |
3358 | } | |
7539bbab | 3359 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3360 | } |
3361 | ||
3362 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3363 | { | |
05d564fe | 3364 | __be32 *p; |
aa53ed54 | 3365 | uint32_t savewords, bmlen, i; |
05d564fe | 3366 | int status; |
1da177e4 | 3367 | |
05d564fe | 3368 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3369 | if (status != -EIO) |
3370 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3371 | if (status) |
3372 | return status; | |
3373 | READ_BUF(NFS4_STATEID_SIZE); | |
3374 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3375 | |
05d564fe | 3376 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3377 | |
05d564fe AA |
3378 | READ_BUF(8); |
3379 | READ32(res->rflags); | |
3380 | READ32(bmlen); | |
3381 | if (bmlen > 10) | |
3382 | goto xdr_error; | |
1da177e4 | 3383 | |
05d564fe | 3384 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3385 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3386 | for (i = 0; i < savewords; ++i) | |
3387 | READ32(res->attrset[i]); | |
3388 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3389 | res->attrset[i] = 0; | |
3390 | ||
1da177e4 LT |
3391 | return decode_delegation(xdr, res); |
3392 | xdr_error: | |
3110ff80 | 3393 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3394 | return -EIO; |
3395 | } | |
3396 | ||
3397 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3398 | { | |
05d564fe | 3399 | __be32 *p; |
1da177e4 LT |
3400 | int status; |
3401 | ||
05d564fe | 3402 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3403 | if (status != -EIO) |
3404 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3405 | if (status) |
3406 | return status; | |
3407 | READ_BUF(NFS4_STATEID_SIZE); | |
3408 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3409 | return 0; | |
1da177e4 LT |
3410 | } |
3411 | ||
3412 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3413 | { | |
8687b63a | 3414 | __be32 *p; |
1da177e4 LT |
3415 | int status; |
3416 | ||
3417 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3418 | if (status != -EIO) |
3419 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3420 | if (status) |
3421 | return status; | |
8ae20abd TM |
3422 | READ_BUF(NFS4_STATEID_SIZE); |
3423 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3424 | return 0; |
3425 | } | |
3426 | ||
3427 | static int decode_putfh(struct xdr_stream *xdr) | |
3428 | { | |
3429 | return decode_op_hdr(xdr, OP_PUTFH); | |
3430 | } | |
3431 | ||
3432 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3433 | { | |
3434 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3435 | } | |
3436 | ||
3437 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3438 | { | |
3439 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3440 | __be32 *p; |
1da177e4 LT |
3441 | uint32_t count, eof, recvd, hdrlen; |
3442 | int status; | |
3443 | ||
3444 | status = decode_op_hdr(xdr, OP_READ); | |
3445 | if (status) | |
3446 | return status; | |
3447 | READ_BUF(8); | |
3448 | READ32(eof); | |
3449 | READ32(count); | |
3450 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3451 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3452 | if (count > recvd) { | |
fe82a183 | 3453 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3454 | "count %u > recvd %u\n", count, recvd); |
3455 | count = recvd; | |
3456 | eof = 0; | |
3457 | } | |
3458 | xdr_read_pages(xdr, count); | |
3459 | res->eof = eof; | |
3460 | res->count = count; | |
3461 | return 0; | |
3462 | } | |
3463 | ||
3464 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3465 | { | |
3466 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3467 | struct page *page = *rcvbuf->pages; | |
3468 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3469 | size_t hdrlen; |
3470 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3471 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3472 | unsigned int nr = 0; |
bcecff77 | 3473 | int status; |
1da177e4 LT |
3474 | |
3475 | status = decode_op_hdr(xdr, OP_READDIR); | |
3476 | if (status) | |
3477 | return status; | |
3478 | READ_BUF(8); | |
3479 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3480 | dprintk("%s: verifier = %08x:%08x\n", |
3481 | __func__, | |
eadf4598 TM |
3482 | ((u32 *)readdir->verifier.data)[0], |
3483 | ((u32 *)readdir->verifier.data)[1]); | |
3484 | ||
1da177e4 LT |
3485 | |
3486 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3487 | recvd = rcvbuf->len - hdrlen; | |
3488 | if (pglen > recvd) | |
3489 | pglen = recvd; | |
3490 | xdr_read_pages(xdr, pglen); | |
3491 | ||
3492 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3493 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3494 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3495 | entry = p; |
7bda2cdf JL |
3496 | |
3497 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3498 | if ((entry + 1) > end) | |
3499 | goto short_pkt; | |
3500 | ||
3501 | for (; *p++; nr++) { | |
bcecff77 | 3502 | u32 len, attrlen, xlen; |
e8896495 | 3503 | if (end - p < 3) |
1da177e4 | 3504 | goto short_pkt; |
eadf4598 | 3505 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3506 | p += 2; /* cookie */ |
3507 | len = ntohl(*p++); /* filename length */ | |
3508 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3509 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3510 | len); | |
1da177e4 LT |
3511 | goto err_unmap; |
3512 | } | |
e8896495 DH |
3513 | xlen = XDR_QUADLEN(len); |
3514 | if (end - p < xlen + 1) | |
1da177e4 | 3515 | goto short_pkt; |
e8896495 DH |
3516 | dprintk("filename = %*s\n", len, (char *)p); |
3517 | p += xlen; | |
1da177e4 | 3518 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3519 | if (end - p < len + 1) |
1da177e4 | 3520 | goto short_pkt; |
e8896495 | 3521 | p += len; |
1da177e4 | 3522 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3523 | if (end - p < attrlen + 2) |
1da177e4 | 3524 | goto short_pkt; |
e8896495 | 3525 | p += attrlen; /* attributes */ |
1da177e4 LT |
3526 | entry = p; |
3527 | } | |
7bda2cdf JL |
3528 | /* |
3529 | * Apparently some server sends responses that are a valid size, but | |
3530 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3531 | * those, just set the EOF marker. | |
3532 | */ | |
3533 | if (!nr && entry[1] == 0) { | |
3534 | dprintk("NFS: readdir reply truncated!\n"); | |
3535 | entry[1] = 1; | |
3536 | } | |
6c0195a4 | 3537 | out: |
1da177e4 LT |
3538 | kunmap_atomic(kaddr, KM_USER0); |
3539 | return 0; | |
3540 | short_pkt: | |
7bda2cdf JL |
3541 | /* |
3542 | * When we get a short packet there are 2 possibilities. We can | |
3543 | * return an error, or fix up the response to look like a valid | |
3544 | * response and return what we have so far. If there are no | |
3545 | * entries and the packet was short, then return -EIO. If there | |
3546 | * are valid entries in the response, return them and pretend that | |
3547 | * the call was successful, but incomplete. The caller can retry the | |
3548 | * readdir starting at the last cookie. | |
3549 | */ | |
3110ff80 | 3550 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3551 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3552 | if (nr) |
3553 | goto out; | |
1da177e4 LT |
3554 | err_unmap: |
3555 | kunmap_atomic(kaddr, KM_USER0); | |
3556 | return -errno_NFSERR_IO; | |
3557 | } | |
3558 | ||
3559 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3560 | { | |
3561 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3562 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3563 | size_t hdrlen; |
3564 | u32 len, recvd; | |
8687b63a | 3565 | __be32 *p; |
1da177e4 LT |
3566 | char *kaddr; |
3567 | int status; | |
3568 | ||
3569 | status = decode_op_hdr(xdr, OP_READLINK); | |
3570 | if (status) | |
3571 | return status; | |
3572 | ||
3573 | /* Convert length of symlink */ | |
3574 | READ_BUF(4); | |
3575 | READ32(len); | |
3576 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3577 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3578 | return -ENAMETOOLONG; |
3579 | } | |
3580 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3581 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3582 | if (recvd < len) { | |
fe82a183 | 3583 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3584 | "count %u > recvd %u\n", len, recvd); |
3585 | return -EIO; | |
3586 | } | |
3587 | xdr_read_pages(xdr, len); | |
3588 | /* | |
3589 | * The XDR encode routine has set things up so that | |
3590 | * the link text will be copied directly into the | |
3591 | * buffer. We just have to do overflow-checking, | |
3592 | * and and null-terminate the text (the VFS expects | |
3593 | * null-termination). | |
3594 | */ | |
3595 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3596 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3597 | kunmap_atomic(kaddr, KM_USER0); | |
3598 | return 0; | |
3599 | } | |
3600 | ||
3601 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3602 | { | |
3603 | int status; | |
3604 | ||
3605 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3606 | if (status) | |
3607 | goto out; | |
3608 | status = decode_change_info(xdr, cinfo); | |
3609 | out: | |
3610 | return status; | |
3611 | } | |
3612 | ||
3613 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3614 | struct nfs4_change_info *new_cinfo) | |
3615 | { | |
3616 | int status; | |
3617 | ||
3618 | status = decode_op_hdr(xdr, OP_RENAME); | |
3619 | if (status) | |
3620 | goto out; | |
3621 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3622 | goto out; | |
3623 | status = decode_change_info(xdr, new_cinfo); | |
3624 | out: | |
3625 | return status; | |
3626 | } | |
3627 | ||
3628 | static int decode_renew(struct xdr_stream *xdr) | |
3629 | { | |
3630 | return decode_op_hdr(xdr, OP_RENEW); | |
3631 | } | |
3632 | ||
56ae19f3 TM |
3633 | static int |
3634 | decode_restorefh(struct xdr_stream *xdr) | |
3635 | { | |
3636 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3637 | } | |
3638 | ||
029d105e BF |
3639 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3640 | size_t *acl_len) | |
3641 | { | |
8687b63a | 3642 | __be32 *savep; |
029d105e BF |
3643 | uint32_t attrlen, |
3644 | bitmap[2] = {0}; | |
3645 | struct kvec *iov = req->rq_rcv_buf.head; | |
3646 | int status; | |
3647 | ||
3648 | *acl_len = 0; | |
3649 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3650 | goto out; | |
3651 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3652 | goto out; | |
3653 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3654 | goto out; | |
3655 | ||
3656 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3657 | return -EIO; | |
3658 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
3659 | size_t hdrlen; |
3660 | u32 recvd; | |
029d105e BF |
3661 | |
3662 | /* We ignore &savep and don't do consistency checks on | |
3663 | * the attr length. Let userspace figure it out.... */ | |
3664 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3665 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3666 | if (attrlen > recvd) { | |
fe82a183 | 3667 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
3668 | " acl reply: attrlen %u > recvd %u\n", |
3669 | attrlen, recvd); | |
3670 | return -EINVAL; | |
3671 | } | |
c04871e6 | 3672 | xdr_read_pages(xdr, attrlen); |
029d105e | 3673 | *acl_len = attrlen; |
8c233cf9 BF |
3674 | } else |
3675 | status = -EOPNOTSUPP; | |
029d105e BF |
3676 | |
3677 | out: | |
3678 | return status; | |
3679 | } | |
3680 | ||
1da177e4 LT |
3681 | static int |
3682 | decode_savefh(struct xdr_stream *xdr) | |
3683 | { | |
3684 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3685 | } | |
3686 | ||
9e9ecc03 | 3687 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 3688 | { |
8687b63a | 3689 | __be32 *p; |
1da177e4 LT |
3690 | uint32_t bmlen; |
3691 | int status; | |
3692 | ||
1da177e4 LT |
3693 | status = decode_op_hdr(xdr, OP_SETATTR); |
3694 | if (status) | |
3695 | return status; | |
3696 | READ_BUF(4); | |
3697 | READ32(bmlen); | |
3698 | READ_BUF(bmlen << 2); | |
3699 | return 0; | |
3700 | } | |
3701 | ||
adfa6f98 | 3702 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3703 | { |
8687b63a | 3704 | __be32 *p; |
1da177e4 LT |
3705 | uint32_t opnum; |
3706 | int32_t nfserr; | |
3707 | ||
3708 | READ_BUF(8); | |
3709 | READ32(opnum); | |
3710 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 3711 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 3712 | " %d\n", opnum); |
1da177e4 LT |
3713 | return -EIO; |
3714 | } | |
3715 | READ32(nfserr); | |
3716 | if (nfserr == NFS_OK) { | |
8ae20abd | 3717 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3718 | READ64(clp->cl_clientid); |
8ae20abd | 3719 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3720 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3721 | uint32_t len; | |
3722 | ||
3723 | /* skip netid string */ | |
3724 | READ_BUF(4); | |
3725 | READ32(len); | |
3726 | READ_BUF(len); | |
3727 | ||
3728 | /* skip uaddr string */ | |
3729 | READ_BUF(4); | |
3730 | READ32(len); | |
3731 | READ_BUF(len); | |
3732 | return -NFSERR_CLID_INUSE; | |
3733 | } else | |
856dff3d | 3734 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3735 | |
3736 | return 0; | |
3737 | } | |
3738 | ||
3739 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3740 | { | |
3741 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3742 | } | |
3743 | ||
3744 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3745 | { | |
8687b63a | 3746 | __be32 *p; |
1da177e4 LT |
3747 | int status; |
3748 | ||
3749 | status = decode_op_hdr(xdr, OP_WRITE); | |
3750 | if (status) | |
3751 | return status; | |
3752 | ||
3753 | READ_BUF(16); | |
3754 | READ32(res->count); | |
3755 | READ32(res->verf->committed); | |
3756 | COPYMEM(res->verf->verifier, 8); | |
3757 | return 0; | |
3758 | } | |
3759 | ||
3760 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3761 | { | |
3762 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3763 | } | |
3764 | ||
49c2559e BH |
3765 | /* |
3766 | * END OF "GENERIC" DECODE ROUTINES. | |
3767 | */ | |
3768 | ||
1da177e4 LT |
3769 | /* |
3770 | * Decode OPEN_DOWNGRADE response | |
3771 | */ | |
8687b63a | 3772 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 3773 | { |
05d564fe AA |
3774 | struct xdr_stream xdr; |
3775 | struct compound_hdr hdr; | |
3776 | int status; | |
3777 | ||
3778 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3779 | status = decode_compound_hdr(&xdr, &hdr); | |
3780 | if (status) | |
3781 | goto out; | |
3782 | status = decode_putfh(&xdr); | |
3783 | if (status) | |
3784 | goto out; | |
3785 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3786 | if (status != 0) |
3787 | goto out; | |
3788 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 3789 | out: |
05d564fe | 3790 | return status; |
1da177e4 LT |
3791 | } |
3792 | ||
1da177e4 LT |
3793 | /* |
3794 | * Decode ACCESS response | |
3795 | */ | |
8687b63a | 3796 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3797 | { |
3798 | struct xdr_stream xdr; | |
3799 | struct compound_hdr hdr; | |
3800 | int status; | |
6c0195a4 | 3801 | |
1da177e4 LT |
3802 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3803 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3804 | goto out; | |
76b32999 TM |
3805 | status = decode_putfh(&xdr); |
3806 | if (status != 0) | |
3807 | goto out; | |
3808 | status = decode_access(&xdr, res); | |
3809 | if (status != 0) | |
3810 | goto out; | |
3811 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3812 | out: |
3813 | return status; | |
3814 | } | |
3815 | ||
3816 | /* | |
3817 | * Decode LOOKUP response | |
3818 | */ | |
8687b63a | 3819 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3820 | { |
3821 | struct xdr_stream xdr; | |
3822 | struct compound_hdr hdr; | |
3823 | int status; | |
6c0195a4 | 3824 | |
1da177e4 LT |
3825 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3826 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3827 | goto out; | |
3828 | if ((status = decode_putfh(&xdr)) != 0) | |
3829 | goto out; | |
3830 | if ((status = decode_lookup(&xdr)) != 0) | |
3831 | goto out; | |
3832 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3833 | goto out; | |
3834 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3835 | out: | |
3836 | return status; | |
3837 | } | |
3838 | ||
3839 | /* | |
3840 | * Decode LOOKUP_ROOT response | |
3841 | */ | |
8687b63a | 3842 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3843 | { |
3844 | struct xdr_stream xdr; | |
3845 | struct compound_hdr hdr; | |
3846 | int status; | |
6c0195a4 | 3847 | |
1da177e4 LT |
3848 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3849 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3850 | goto out; | |
3851 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3852 | goto out; | |
3853 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3854 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3855 | out: | |
3856 | return status; | |
3857 | } | |
3858 | ||
3859 | /* | |
3860 | * Decode REMOVE response | |
3861 | */ | |
4fdc17b2 | 3862 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
3863 | { |
3864 | struct xdr_stream xdr; | |
3865 | struct compound_hdr hdr; | |
3866 | int status; | |
6c0195a4 | 3867 | |
1da177e4 LT |
3868 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3869 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3870 | goto out; | |
16e42959 TM |
3871 | if ((status = decode_putfh(&xdr)) != 0) |
3872 | goto out; | |
3873 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3874 | goto out; | |
4fdc17b2 | 3875 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
3876 | out: |
3877 | return status; | |
3878 | } | |
3879 | ||
3880 | /* | |
3881 | * Decode RENAME response | |
3882 | */ | |
8687b63a | 3883 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3884 | { |
3885 | struct xdr_stream xdr; | |
3886 | struct compound_hdr hdr; | |
3887 | int status; | |
6c0195a4 | 3888 | |
1da177e4 LT |
3889 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3890 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3891 | goto out; | |
3892 | if ((status = decode_putfh(&xdr)) != 0) | |
3893 | goto out; | |
3894 | if ((status = decode_savefh(&xdr)) != 0) | |
3895 | goto out; | |
3896 | if ((status = decode_putfh(&xdr)) != 0) | |
3897 | goto out; | |
6caf2c82 TM |
3898 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
3899 | goto out; | |
3900 | /* Current FH is target directory */ | |
3901 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
3902 | goto out; | |
3903 | if ((status = decode_restorefh(&xdr)) != 0) | |
3904 | goto out; | |
3905 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
3906 | out: |
3907 | return status; | |
3908 | } | |
3909 | ||
3910 | /* | |
3911 | * Decode LINK response | |
3912 | */ | |
8687b63a | 3913 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
3914 | { |
3915 | struct xdr_stream xdr; | |
3916 | struct compound_hdr hdr; | |
3917 | int status; | |
6c0195a4 | 3918 | |
1da177e4 LT |
3919 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3920 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3921 | goto out; | |
3922 | if ((status = decode_putfh(&xdr)) != 0) | |
3923 | goto out; | |
3924 | if ((status = decode_savefh(&xdr)) != 0) | |
3925 | goto out; | |
3926 | if ((status = decode_putfh(&xdr)) != 0) | |
3927 | goto out; | |
91ba2eee TM |
3928 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
3929 | goto out; | |
3930 | /* | |
3931 | * Note order: OP_LINK leaves the directory as the current | |
3932 | * filehandle. | |
3933 | */ | |
3934 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
3935 | goto out; | |
3936 | if ((status = decode_restorefh(&xdr)) != 0) | |
3937 | goto out; | |
3938 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3939 | out: |
3940 | return status; | |
3941 | } | |
3942 | ||
3943 | /* | |
3944 | * Decode CREATE response | |
3945 | */ | |
8687b63a | 3946 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3947 | { |
3948 | struct xdr_stream xdr; | |
3949 | struct compound_hdr hdr; | |
3950 | int status; | |
6c0195a4 | 3951 | |
1da177e4 LT |
3952 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3953 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3954 | goto out; | |
3955 | if ((status = decode_putfh(&xdr)) != 0) | |
3956 | goto out; | |
56ae19f3 TM |
3957 | if ((status = decode_savefh(&xdr)) != 0) |
3958 | goto out; | |
1da177e4 LT |
3959 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
3960 | goto out; | |
3961 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3962 | goto out; | |
56ae19f3 TM |
3963 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
3964 | goto out; | |
3965 | if ((status = decode_restorefh(&xdr)) != 0) | |
3966 | goto out; | |
3967 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
3968 | out: |
3969 | return status; | |
3970 | } | |
3971 | ||
3972 | /* | |
3973 | * Decode SYMLINK response | |
3974 | */ | |
8687b63a | 3975 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3976 | { |
3977 | return nfs4_xdr_dec_create(rqstp, p, res); | |
3978 | } | |
3979 | ||
3980 | /* | |
3981 | * Decode GETATTR response | |
3982 | */ | |
8687b63a | 3983 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
3984 | { |
3985 | struct xdr_stream xdr; | |
3986 | struct compound_hdr hdr; | |
3987 | int status; | |
6c0195a4 | 3988 | |
1da177e4 LT |
3989 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3990 | status = decode_compound_hdr(&xdr, &hdr); | |
3991 | if (status) | |
3992 | goto out; | |
3993 | status = decode_putfh(&xdr); | |
3994 | if (status) | |
3995 | goto out; | |
3996 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3997 | out: | |
3998 | return status; | |
1da177e4 LT |
3999 | } |
4000 | ||
23ec6965 BF |
4001 | /* |
4002 | * Encode an SETACL request | |
4003 | */ | |
4004 | static int | |
8687b63a | 4005 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4006 | { |
05d564fe AA |
4007 | struct xdr_stream xdr; |
4008 | struct compound_hdr hdr = { | |
66cc0429 | 4009 | .minorversion = nfs4_xdr_minorversion(&args->seq_args), |
05d564fe AA |
4010 | }; |
4011 | int status; | |
4012 | ||
4013 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4014 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 4015 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4016 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4017 | encode_nops(&hdr); |
05d564fe | 4018 | return status; |
23ec6965 | 4019 | } |
05d564fe | 4020 | |
23ec6965 BF |
4021 | /* |
4022 | * Decode SETACL response | |
4023 | */ | |
4024 | static int | |
73c403a9 BH |
4025 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4026 | struct nfs_setaclres *res) | |
23ec6965 BF |
4027 | { |
4028 | struct xdr_stream xdr; | |
4029 | struct compound_hdr hdr; | |
4030 | int status; | |
4031 | ||
4032 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4033 | status = decode_compound_hdr(&xdr, &hdr); | |
4034 | if (status) | |
4035 | goto out; | |
4036 | status = decode_putfh(&xdr); | |
4037 | if (status) | |
4038 | goto out; | |
9e9ecc03 | 4039 | status = decode_setattr(&xdr); |
23ec6965 BF |
4040 | out: |
4041 | return status; | |
4042 | } | |
1da177e4 | 4043 | |
029d105e BF |
4044 | /* |
4045 | * Decode GETACL response | |
4046 | */ | |
4047 | static int | |
663c79b3 BH |
4048 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4049 | struct nfs_getaclres *res) | |
029d105e BF |
4050 | { |
4051 | struct xdr_stream xdr; | |
4052 | struct compound_hdr hdr; | |
4053 | int status; | |
4054 | ||
4055 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4056 | status = decode_compound_hdr(&xdr, &hdr); | |
4057 | if (status) | |
4058 | goto out; | |
4059 | status = decode_putfh(&xdr); | |
4060 | if (status) | |
4061 | goto out; | |
663c79b3 | 4062 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4063 | |
4064 | out: | |
4065 | return status; | |
4066 | } | |
4067 | ||
1da177e4 LT |
4068 | /* |
4069 | * Decode CLOSE response | |
4070 | */ | |
8687b63a | 4071 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4072 | { |
05d564fe AA |
4073 | struct xdr_stream xdr; |
4074 | struct compound_hdr hdr; | |
4075 | int status; | |
4076 | ||
4077 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4078 | status = decode_compound_hdr(&xdr, &hdr); | |
4079 | if (status) | |
4080 | goto out; | |
4081 | status = decode_putfh(&xdr); | |
4082 | if (status) | |
4083 | goto out; | |
4084 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4085 | if (status != 0) |
4086 | goto out; | |
4087 | /* | |
4088 | * Note: Server may do delete on close for this file | |
4089 | * in which case the getattr call will fail with | |
4090 | * an ESTALE error. Shouldn't be a problem, | |
4091 | * though, since fattr->valid will remain unset. | |
4092 | */ | |
4093 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4094 | out: |
05d564fe | 4095 | return status; |
1da177e4 LT |
4096 | } |
4097 | ||
4098 | /* | |
4099 | * Decode OPEN response | |
4100 | */ | |
8687b63a | 4101 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4102 | { |
05d564fe AA |
4103 | struct xdr_stream xdr; |
4104 | struct compound_hdr hdr; | |
4105 | int status; | |
4106 | ||
4107 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4108 | status = decode_compound_hdr(&xdr, &hdr); | |
4109 | if (status) | |
4110 | goto out; | |
4111 | status = decode_putfh(&xdr); | |
4112 | if (status) | |
4113 | goto out; | |
4114 | status = decode_savefh(&xdr); | |
4115 | if (status) | |
4116 | goto out; | |
4117 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4118 | if (status) |
4119 | goto out; | |
9936781d | 4120 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4121 | goto out; |
56ae19f3 TM |
4122 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4123 | goto out; | |
365c8f58 | 4124 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4125 | goto out; |
4126 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4127 | out: |
05d564fe | 4128 | return status; |
1da177e4 LT |
4129 | } |
4130 | ||
4131 | /* | |
4132 | * Decode OPEN_CONFIRM response | |
4133 | */ | |
8687b63a | 4134 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4135 | { |
05d564fe AA |
4136 | struct xdr_stream xdr; |
4137 | struct compound_hdr hdr; | |
4138 | int status; | |
4139 | ||
4140 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4141 | status = decode_compound_hdr(&xdr, &hdr); | |
4142 | if (status) | |
4143 | goto out; | |
4144 | status = decode_putfh(&xdr); | |
4145 | if (status) | |
4146 | goto out; | |
4147 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4148 | out: |
05d564fe | 4149 | return status; |
1da177e4 LT |
4150 | } |
4151 | ||
4152 | /* | |
4153 | * Decode OPEN response | |
4154 | */ | |
8687b63a | 4155 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4156 | { |
05d564fe AA |
4157 | struct xdr_stream xdr; |
4158 | struct compound_hdr hdr; | |
4159 | int status; | |
4160 | ||
4161 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4162 | status = decode_compound_hdr(&xdr, &hdr); | |
4163 | if (status) | |
4164 | goto out; | |
4165 | status = decode_putfh(&xdr); | |
4166 | if (status) | |
4167 | goto out; | |
4168 | status = decode_open(&xdr, res); | |
4169 | if (status) | |
4170 | goto out; | |
864472e9 | 4171 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4172 | out: |
05d564fe | 4173 | return status; |
1da177e4 LT |
4174 | } |
4175 | ||
4176 | /* | |
4177 | * Decode SETATTR response | |
4178 | */ | |
8687b63a | 4179 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4180 | { |
05d564fe AA |
4181 | struct xdr_stream xdr; |
4182 | struct compound_hdr hdr; | |
4183 | int status; | |
4184 | ||
4185 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4186 | status = decode_compound_hdr(&xdr, &hdr); | |
4187 | if (status) | |
4188 | goto out; | |
4189 | status = decode_putfh(&xdr); | |
4190 | if (status) | |
4191 | goto out; | |
9e9ecc03 | 4192 | status = decode_setattr(&xdr); |
05d564fe AA |
4193 | if (status) |
4194 | goto out; | |
78f945f8 | 4195 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4196 | out: |
05d564fe | 4197 | return status; |
1da177e4 LT |
4198 | } |
4199 | ||
4200 | /* | |
4201 | * Decode LOCK response | |
4202 | */ | |
8687b63a | 4203 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4204 | { |
4205 | struct xdr_stream xdr; | |
4206 | struct compound_hdr hdr; | |
4207 | int status; | |
4208 | ||
4209 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4210 | status = decode_compound_hdr(&xdr, &hdr); | |
4211 | if (status) | |
4212 | goto out; | |
4213 | status = decode_putfh(&xdr); | |
4214 | if (status) | |
4215 | goto out; | |
4216 | status = decode_lock(&xdr, res); | |
4217 | out: | |
4218 | return status; | |
4219 | } | |
4220 | ||
4221 | /* | |
4222 | * Decode LOCKT response | |
4223 | */ | |
8687b63a | 4224 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4225 | { |
4226 | struct xdr_stream xdr; | |
4227 | struct compound_hdr hdr; | |
4228 | int status; | |
4229 | ||
4230 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4231 | status = decode_compound_hdr(&xdr, &hdr); | |
4232 | if (status) | |
4233 | goto out; | |
4234 | status = decode_putfh(&xdr); | |
4235 | if (status) | |
4236 | goto out; | |
4237 | status = decode_lockt(&xdr, res); | |
4238 | out: | |
4239 | return status; | |
4240 | } | |
4241 | ||
4242 | /* | |
4243 | * Decode LOCKU response | |
4244 | */ | |
8687b63a | 4245 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4246 | { |
4247 | struct xdr_stream xdr; | |
4248 | struct compound_hdr hdr; | |
4249 | int status; | |
4250 | ||
4251 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4252 | status = decode_compound_hdr(&xdr, &hdr); | |
4253 | if (status) | |
4254 | goto out; | |
4255 | status = decode_putfh(&xdr); | |
4256 | if (status) | |
4257 | goto out; | |
4258 | status = decode_locku(&xdr, res); | |
4259 | out: | |
4260 | return status; | |
4261 | } | |
4262 | ||
4263 | /* | |
4264 | * Decode READLINK response | |
4265 | */ | |
f50c7000 BH |
4266 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4267 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4268 | { |
4269 | struct xdr_stream xdr; | |
4270 | struct compound_hdr hdr; | |
4271 | int status; | |
4272 | ||
4273 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4274 | status = decode_compound_hdr(&xdr, &hdr); | |
4275 | if (status) | |
4276 | goto out; | |
4277 | status = decode_putfh(&xdr); | |
4278 | if (status) | |
4279 | goto out; | |
4280 | status = decode_readlink(&xdr, rqstp); | |
4281 | out: | |
4282 | return status; | |
4283 | } | |
4284 | ||
4285 | /* | |
4286 | * Decode READDIR response | |
4287 | */ | |
8687b63a | 4288 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4289 | { |
4290 | struct xdr_stream xdr; | |
4291 | struct compound_hdr hdr; | |
4292 | int status; | |
4293 | ||
4294 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4295 | status = decode_compound_hdr(&xdr, &hdr); | |
4296 | if (status) | |
4297 | goto out; | |
4298 | status = decode_putfh(&xdr); | |
4299 | if (status) | |
4300 | goto out; | |
4301 | status = decode_readdir(&xdr, rqstp, res); | |
4302 | out: | |
4303 | return status; | |
4304 | } | |
4305 | ||
4306 | /* | |
4307 | * Decode Read response | |
4308 | */ | |
8687b63a | 4309 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4310 | { |
4311 | struct xdr_stream xdr; | |
4312 | struct compound_hdr hdr; | |
4313 | int status; | |
4314 | ||
4315 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4316 | status = decode_compound_hdr(&xdr, &hdr); | |
4317 | if (status) | |
4318 | goto out; | |
4319 | status = decode_putfh(&xdr); | |
4320 | if (status) | |
4321 | goto out; | |
4322 | status = decode_read(&xdr, rqstp, res); | |
4323 | if (!status) | |
4324 | status = res->count; | |
4325 | out: | |
4326 | return status; | |
4327 | } | |
4328 | ||
4329 | /* | |
4330 | * Decode WRITE response | |
4331 | */ | |
8687b63a | 4332 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4333 | { |
4334 | struct xdr_stream xdr; | |
4335 | struct compound_hdr hdr; | |
4336 | int status; | |
4337 | ||
4338 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4339 | status = decode_compound_hdr(&xdr, &hdr); | |
4340 | if (status) | |
4341 | goto out; | |
4342 | status = decode_putfh(&xdr); | |
4343 | if (status) | |
4344 | goto out; | |
4345 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4346 | if (status) |
4347 | goto out; | |
4348 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4349 | if (!status) |
4350 | status = res->count; | |
4351 | out: | |
4352 | return status; | |
4353 | } | |
4354 | ||
4355 | /* | |
4356 | * Decode COMMIT response | |
4357 | */ | |
8687b63a | 4358 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4359 | { |
4360 | struct xdr_stream xdr; | |
4361 | struct compound_hdr hdr; | |
4362 | int status; | |
4363 | ||
4364 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4365 | status = decode_compound_hdr(&xdr, &hdr); | |
4366 | if (status) | |
4367 | goto out; | |
4368 | status = decode_putfh(&xdr); | |
4369 | if (status) | |
4370 | goto out; | |
4371 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4372 | if (status) |
4373 | goto out; | |
4374 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4375 | out: |
4376 | return status; | |
4377 | } | |
4378 | ||
4379 | /* | |
4380 | * FSINFO request | |
4381 | */ | |
3dda5e43 BH |
4382 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
4383 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
4384 | { |
4385 | struct xdr_stream xdr; | |
4386 | struct compound_hdr hdr; | |
4387 | int status; | |
4388 | ||
4389 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4390 | status = decode_compound_hdr(&xdr, &hdr); | |
4391 | if (!status) | |
4392 | status = decode_putfh(&xdr); | |
4393 | if (!status) | |
3dda5e43 | 4394 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
4395 | return status; |
4396 | } | |
4397 | ||
4398 | /* | |
4399 | * PATHCONF request | |
4400 | */ | |
d45b2989 BH |
4401 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
4402 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
4403 | { |
4404 | struct xdr_stream xdr; | |
4405 | struct compound_hdr hdr; | |
4406 | int status; | |
4407 | ||
4408 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4409 | status = decode_compound_hdr(&xdr, &hdr); | |
4410 | if (!status) | |
4411 | status = decode_putfh(&xdr); | |
4412 | if (!status) | |
d45b2989 | 4413 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
4414 | return status; |
4415 | } | |
4416 | ||
4417 | /* | |
4418 | * STATFS request | |
4419 | */ | |
24ad148a BH |
4420 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
4421 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
4422 | { |
4423 | struct xdr_stream xdr; | |
4424 | struct compound_hdr hdr; | |
4425 | int status; | |
4426 | ||
4427 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4428 | status = decode_compound_hdr(&xdr, &hdr); | |
4429 | if (!status) | |
4430 | status = decode_putfh(&xdr); | |
4431 | if (!status) | |
24ad148a | 4432 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
4433 | return status; |
4434 | } | |
4435 | ||
4436 | /* | |
4437 | * GETATTR_BITMAP request | |
4438 | */ | |
8687b63a | 4439 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4440 | { |
4441 | struct xdr_stream xdr; | |
4442 | struct compound_hdr hdr; | |
4443 | int status; | |
4444 | ||
4445 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4446 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4447 | goto out; | |
4448 | if ((status = decode_putfh(&xdr)) != 0) | |
4449 | goto out; | |
4450 | status = decode_server_caps(&xdr, res); | |
4451 | out: | |
4452 | return status; | |
4453 | } | |
4454 | ||
4455 | /* | |
4456 | * Decode RENEW response | |
4457 | */ | |
8687b63a | 4458 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4459 | { |
4460 | struct xdr_stream xdr; | |
4461 | struct compound_hdr hdr; | |
4462 | int status; | |
4463 | ||
4464 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4465 | status = decode_compound_hdr(&xdr, &hdr); | |
4466 | if (!status) | |
4467 | status = decode_renew(&xdr); | |
4468 | return status; | |
4469 | } | |
4470 | ||
4471 | /* | |
4472 | * a SETCLIENTID request | |
4473 | */ | |
8687b63a | 4474 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4475 | struct nfs_client *clp) |
1da177e4 LT |
4476 | { |
4477 | struct xdr_stream xdr; | |
4478 | struct compound_hdr hdr; | |
4479 | int status; | |
4480 | ||
4481 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4482 | status = decode_compound_hdr(&xdr, &hdr); | |
4483 | if (!status) | |
4484 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
4485 | return status; |
4486 | } | |
4487 | ||
4488 | /* | |
4489 | * a SETCLIENTID_CONFIRM request | |
4490 | */ | |
8687b63a | 4491 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4492 | { |
4493 | struct xdr_stream xdr; | |
4494 | struct compound_hdr hdr; | |
4495 | int status; | |
4496 | ||
4497 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4498 | status = decode_compound_hdr(&xdr, &hdr); | |
4499 | if (!status) | |
4500 | status = decode_setclientid_confirm(&xdr); | |
4501 | if (!status) | |
4502 | status = decode_putrootfh(&xdr); | |
4503 | if (!status) | |
4504 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4505 | return status; |
4506 | } | |
4507 | ||
4508 | /* | |
4509 | * DELEGRETURN request | |
4510 | */ | |
8687b63a | 4511 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4512 | { |
4513 | struct xdr_stream xdr; | |
4514 | struct compound_hdr hdr; | |
4515 | int status; | |
4516 | ||
4517 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4518 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4519 | if (status != 0) |
4520 | goto out; | |
4521 | status = decode_putfh(&xdr); | |
4522 | if (status != 0) | |
4523 | goto out; | |
4524 | status = decode_delegreturn(&xdr); | |
4525 | decode_getfattr(&xdr, res->fattr, res->server); | |
4526 | out: | |
1da177e4 LT |
4527 | return status; |
4528 | } | |
4529 | ||
683b57b4 TM |
4530 | /* |
4531 | * FS_LOCATIONS request | |
4532 | */ | |
22958463 BH |
4533 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
4534 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
4535 | { |
4536 | struct xdr_stream xdr; | |
4537 | struct compound_hdr hdr; | |
4538 | int status; | |
4539 | ||
4540 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4541 | status = decode_compound_hdr(&xdr, &hdr); | |
4542 | if (status != 0) | |
4543 | goto out; | |
4544 | if ((status = decode_putfh(&xdr)) != 0) | |
4545 | goto out; | |
4546 | if ((status = decode_lookup(&xdr)) != 0) | |
4547 | goto out; | |
4548 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
4549 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
4550 | res->fs_locations->server); | |
683b57b4 TM |
4551 | out: |
4552 | return status; | |
4553 | } | |
4554 | ||
0dbb4c67 | 4555 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4556 | { |
4557 | uint32_t bitmap[2] = {0}; | |
4558 | uint32_t len; | |
4559 | ||
4560 | if (!*p++) { | |
4561 | if (!*p) | |
4562 | return ERR_PTR(-EAGAIN); | |
4563 | entry->eof = 1; | |
4564 | return ERR_PTR(-EBADCOOKIE); | |
4565 | } | |
4566 | ||
4567 | entry->prev_cookie = entry->cookie; | |
4568 | p = xdr_decode_hyper(p, &entry->cookie); | |
4569 | entry->len = ntohl(*p++); | |
4570 | entry->name = (const char *) p; | |
4571 | p += XDR_QUADLEN(entry->len); | |
4572 | ||
4573 | /* | |
4574 | * In case the server doesn't return an inode number, | |
4575 | * we fake one here. (We don't use inode number 0, | |
4576 | * since glibc seems to choke on it...) | |
4577 | */ | |
4578 | entry->ino = 1; | |
4579 | ||
4580 | len = ntohl(*p++); /* bitmap length */ | |
4581 | if (len-- > 0) { | |
4582 | bitmap[0] = ntohl(*p++); | |
4583 | if (len-- > 0) { | |
4584 | bitmap[1] = ntohl(*p++); | |
4585 | p += len; | |
4586 | } | |
4587 | } | |
4588 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4589 | if (len > 0) { | |
97d312d0 MN |
4590 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4591 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4592 | /* Ignore the return value of rdattr_error for now */ | |
4593 | p++; | |
4594 | len--; | |
4595 | } | |
1da177e4 LT |
4596 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4597 | xdr_decode_hyper(p, &entry->ino); | |
4598 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4599 | xdr_decode_hyper(p, &entry->ino); | |
4600 | p += len; | |
4601 | } | |
4602 | ||
4603 | entry->eof = !p[0] && p[1]; | |
4604 | return p; | |
4605 | } | |
4606 | ||
4607 | /* | |
4608 | * We need to translate between nfs status return values and | |
4609 | * the local errno values which may not be the same. | |
4610 | */ | |
4611 | static struct { | |
4612 | int stat; | |
4613 | int errno; | |
4614 | } nfs_errtbl[] = { | |
4615 | { NFS4_OK, 0 }, | |
856dff3d BH |
4616 | { NFS4ERR_PERM, -EPERM }, |
4617 | { NFS4ERR_NOENT, -ENOENT }, | |
4618 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
4619 | { NFS4ERR_NXIO, -ENXIO }, | |
4620 | { NFS4ERR_ACCESS, -EACCES }, | |
4621 | { NFS4ERR_EXIST, -EEXIST }, | |
4622 | { NFS4ERR_XDEV, -EXDEV }, | |
4623 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
4624 | { NFS4ERR_ISDIR, -EISDIR }, | |
4625 | { NFS4ERR_INVAL, -EINVAL }, | |
4626 | { NFS4ERR_FBIG, -EFBIG }, | |
4627 | { NFS4ERR_NOSPC, -ENOSPC }, | |
4628 | { NFS4ERR_ROFS, -EROFS }, | |
4629 | { NFS4ERR_MLINK, -EMLINK }, | |
4630 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
4631 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
4632 | { NFS4ERR_DQUOT, -EDQUOT }, | |
4633 | { NFS4ERR_STALE, -ESTALE }, | |
4634 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
4635 | { NFS4ERR_BADOWNER, -EINVAL }, | |
4636 | { NFS4ERR_BADNAME, -EINVAL }, | |
4637 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
4638 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
4639 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
4640 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
4641 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
4642 | { NFS4ERR_LOCKED, -EAGAIN }, | |
4643 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
4644 | { NFS4ERR_SYMLINK, -ELOOP }, | |
4645 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
4646 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
4647 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
4648 | * to be handled by a |
4649 | * middle-layer. | |
4650 | */ | |
856dff3d | 4651 | { -1, -EIO } |
1da177e4 LT |
4652 | }; |
4653 | ||
4654 | /* | |
4655 | * Convert an NFS error code to a local one. | |
4656 | * This one is used jointly by NFSv2 and NFSv3. | |
4657 | */ | |
4658 | static int | |
0a8ea437 | 4659 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4660 | { |
4661 | int i; | |
4662 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4663 | if (nfs_errtbl[i].stat == stat) | |
4664 | return nfs_errtbl[i].errno; | |
4665 | } | |
4666 | if (stat <= 10000 || stat > 10100) { | |
4667 | /* The server is looney tunes. */ | |
856dff3d | 4668 | return -ESERVERFAULT; |
1da177e4 LT |
4669 | } |
4670 | /* If we cannot translate the error, the recovery routines should | |
4671 | * handle it. | |
4672 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4673 | * not conflict with native Linux error codes. | |
4674 | */ | |
856dff3d | 4675 | return -stat; |
1da177e4 LT |
4676 | } |
4677 | ||
1da177e4 LT |
4678 | #define PROC(proc, argtype, restype) \ |
4679 | [NFSPROC4_CLNT_##proc] = { \ | |
4680 | .p_proc = NFSPROC4_COMPOUND, \ | |
4681 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4682 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4683 | .p_arglen = NFS4_##argtype##_sz, \ |
4684 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4685 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4686 | .p_name = #proc, \ | |
05d564fe | 4687 | } |
1da177e4 LT |
4688 | |
4689 | struct rpc_procinfo nfs4_procedures[] = { | |
4690 | PROC(READ, enc_read, dec_read), | |
4691 | PROC(WRITE, enc_write, dec_write), | |
4692 | PROC(COMMIT, enc_commit, dec_commit), | |
4693 | PROC(OPEN, enc_open, dec_open), | |
4694 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4695 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4696 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4697 | PROC(CLOSE, enc_close, dec_close), | |
4698 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4699 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4700 | PROC(RENEW, enc_renew, dec_renew), | |
4701 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4702 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4703 | PROC(LOCK, enc_lock, dec_lock), | |
4704 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4705 | PROC(LOCKU, enc_locku, dec_locku), | |
4706 | PROC(ACCESS, enc_access, dec_access), | |
4707 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4708 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4709 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4710 | PROC(REMOVE, enc_remove, dec_remove), | |
4711 | PROC(RENAME, enc_rename, dec_rename), | |
4712 | PROC(LINK, enc_link, dec_link), | |
4713 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4714 | PROC(CREATE, enc_create, dec_create), | |
4715 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4716 | PROC(STATFS, enc_statfs, dec_statfs), | |
4717 | PROC(READLINK, enc_readlink, dec_readlink), | |
4718 | PROC(READDIR, enc_readdir, dec_readdir), | |
4719 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4720 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4721 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4722 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4723 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4724 | }; |
4725 | ||
4726 | struct rpc_version nfs_version4 = { | |
4727 | .number = 4, | |
e8c96f8c | 4728 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4729 | .procs = nfs4_procedures |
4730 | }; | |
4731 | ||
4732 | /* | |
4733 | * Local variables: | |
4734 | * c-basic-offset: 8 | |
4735 | * End: | |
4736 | */ |