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 */ |
1da177e4 LT |
549 | }; |
550 | ||
551 | /* | |
552 | * START OF "GENERIC" ENCODE ROUTINES. | |
553 | * These may look a little ugly since they are imported from a "generic" | |
554 | * set of XDR encode/decode routines which are intended to be shared by | |
555 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
556 | * | |
557 | * If the pain of reading these is too great, it should be a straightforward | |
558 | * task to translate them into Linux-specific versions which are more | |
559 | * consistent with the style used in NFSv2/v3... | |
560 | */ | |
561 | #define WRITE32(n) *p++ = htonl(n) | |
562 | #define WRITE64(n) do { \ | |
563 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
564 | *p++ = htonl((uint32_t)(n)); \ | |
565 | } while (0) | |
566 | #define WRITEMEM(ptr,nbytes) do { \ | |
567 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
568 | } while (0) | |
569 | ||
570 | #define RESERVE_SPACE(nbytes) do { \ | |
571 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
572 | BUG_ON(!p); \ |
573 | } while (0) | |
574 | ||
575 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
576 | { | |
8687b63a | 577 | __be32 *p; |
1da177e4 LT |
578 | |
579 | p = xdr_reserve_space(xdr, 4 + len); | |
580 | BUG_ON(p == NULL); | |
581 | xdr_encode_opaque(p, str, len); | |
582 | } | |
583 | ||
0c4e8c18 BH |
584 | static void encode_compound_hdr(struct xdr_stream *xdr, |
585 | struct rpc_rqst *req, | |
586 | struct compound_hdr *hdr) | |
1da177e4 | 587 | { |
8687b63a | 588 | __be32 *p; |
0c4e8c18 BH |
589 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
590 | ||
591 | /* initialize running count of expected bytes in reply. | |
592 | * NOTE: the replied tag SHOULD be the same is the one sent, | |
593 | * but this is not required as a MUST for the server to do so. */ | |
594 | hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; | |
1da177e4 LT |
595 | |
596 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
597 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
598 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
599 | WRITE32(hdr->taglen); | |
600 | WRITEMEM(hdr->tag, hdr->taglen); | |
601 | WRITE32(NFS4_MINOR_VERSION); | |
d017931c | 602 | hdr->nops_p = p; |
1da177e4 | 603 | WRITE32(hdr->nops); |
d017931c AA |
604 | } |
605 | ||
606 | static void encode_nops(struct compound_hdr *hdr) | |
607 | { | |
608 | *hdr->nops_p = htonl(hdr->nops); | |
1da177e4 LT |
609 | } |
610 | ||
611 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
612 | { | |
8687b63a | 613 | __be32 *p; |
1da177e4 LT |
614 | |
615 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
616 | BUG_ON(p == NULL); | |
617 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
618 | } | |
619 | ||
cf8cdbe5 | 620 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
621 | { |
622 | char owner_name[IDMAP_NAMESZ]; | |
623 | char owner_group[IDMAP_NAMESZ]; | |
624 | int owner_namelen = 0; | |
625 | int owner_grouplen = 0; | |
8687b63a AV |
626 | __be32 *p; |
627 | __be32 *q; | |
1da177e4 LT |
628 | int len; |
629 | uint32_t bmval0 = 0; | |
630 | uint32_t bmval1 = 0; | |
1da177e4 LT |
631 | |
632 | /* | |
633 | * We reserve enough space to write the entire attribute buffer at once. | |
634 | * In the worst-case, this would be | |
635 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
636 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 637 | * such as owner/group. |
1da177e4 LT |
638 | */ |
639 | len = 16; | |
640 | ||
641 | /* Sigh */ | |
642 | if (iap->ia_valid & ATTR_SIZE) | |
643 | len += 8; | |
644 | if (iap->ia_valid & ATTR_MODE) | |
645 | len += 4; | |
646 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 647 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 648 | if (owner_namelen < 0) { |
fe82a183 CL |
649 | dprintk("nfs: couldn't resolve uid %d to string\n", |
650 | iap->ia_uid); | |
1da177e4 LT |
651 | /* XXX */ |
652 | strcpy(owner_name, "nobody"); | |
653 | owner_namelen = sizeof("nobody") - 1; | |
654 | /* goto out; */ | |
655 | } | |
656 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
657 | } | |
658 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 659 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 660 | if (owner_grouplen < 0) { |
fe82a183 CL |
661 | dprintk("nfs: couldn't resolve gid %d to string\n", |
662 | iap->ia_gid); | |
1da177e4 LT |
663 | strcpy(owner_group, "nobody"); |
664 | owner_grouplen = sizeof("nobody") - 1; | |
665 | /* goto out; */ | |
666 | } | |
667 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
668 | } | |
669 | if (iap->ia_valid & ATTR_ATIME_SET) | |
670 | len += 16; | |
671 | else if (iap->ia_valid & ATTR_ATIME) | |
672 | len += 4; | |
673 | if (iap->ia_valid & ATTR_MTIME_SET) | |
674 | len += 16; | |
675 | else if (iap->ia_valid & ATTR_MTIME) | |
676 | len += 4; | |
677 | RESERVE_SPACE(len); | |
678 | ||
679 | /* | |
680 | * We write the bitmap length now, but leave the bitmap and the attribute | |
681 | * buffer length to be backfilled at the end of this routine. | |
682 | */ | |
683 | WRITE32(2); | |
684 | q = p; | |
685 | p += 3; | |
686 | ||
687 | if (iap->ia_valid & ATTR_SIZE) { | |
688 | bmval0 |= FATTR4_WORD0_SIZE; | |
689 | WRITE64(iap->ia_size); | |
690 | } | |
691 | if (iap->ia_valid & ATTR_MODE) { | |
692 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 693 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
694 | } |
695 | if (iap->ia_valid & ATTR_UID) { | |
696 | bmval1 |= FATTR4_WORD1_OWNER; | |
697 | WRITE32(owner_namelen); | |
698 | WRITEMEM(owner_name, owner_namelen); | |
699 | } | |
700 | if (iap->ia_valid & ATTR_GID) { | |
701 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
702 | WRITE32(owner_grouplen); | |
703 | WRITEMEM(owner_group, owner_grouplen); | |
704 | } | |
705 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
706 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
707 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
708 | WRITE32(0); | |
709 | WRITE32(iap->ia_mtime.tv_sec); | |
710 | WRITE32(iap->ia_mtime.tv_nsec); | |
711 | } | |
712 | else if (iap->ia_valid & ATTR_ATIME) { | |
713 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
714 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
715 | } | |
716 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
717 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
718 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
719 | WRITE32(0); | |
720 | WRITE32(iap->ia_mtime.tv_sec); | |
721 | WRITE32(iap->ia_mtime.tv_nsec); | |
722 | } | |
723 | else if (iap->ia_valid & ATTR_MTIME) { | |
724 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
725 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
726 | } | |
6c0195a4 | 727 | |
1da177e4 LT |
728 | /* |
729 | * Now we backfill the bitmap and the attribute buffer length. | |
730 | */ | |
731 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 732 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
733 | len, ((char *)p - (char *)q) + 4); |
734 | BUG(); | |
735 | } | |
736 | len = (char *)p - (char *)q - 12; | |
737 | *q++ = htonl(bmval0); | |
738 | *q++ = htonl(bmval1); | |
739 | *q++ = htonl(len); | |
740 | ||
1da177e4 | 741 | /* out: */ |
1da177e4 LT |
742 | } |
743 | ||
cf8cdbe5 | 744 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 745 | { |
8687b63a | 746 | __be32 *p; |
1da177e4 LT |
747 | |
748 | RESERVE_SPACE(8); | |
749 | WRITE32(OP_ACCESS); | |
750 | WRITE32(access); | |
d017931c | 751 | hdr->nops++; |
dadf0c27 | 752 | hdr->replen += decode_access_maxsz; |
1da177e4 LT |
753 | } |
754 | ||
cf8cdbe5 | 755 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 756 | { |
8687b63a | 757 | __be32 *p; |
1da177e4 | 758 | |
8ae20abd | 759 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 760 | WRITE32(OP_CLOSE); |
cee54fc9 | 761 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 762 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 763 | hdr->nops++; |
dadf0c27 | 764 | hdr->replen += decode_close_maxsz; |
1da177e4 LT |
765 | } |
766 | ||
cf8cdbe5 | 767 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 768 | { |
8687b63a | 769 | __be32 *p; |
6c0195a4 | 770 | |
05d564fe AA |
771 | RESERVE_SPACE(16); |
772 | WRITE32(OP_COMMIT); | |
773 | WRITE64(args->offset); | |
774 | WRITE32(args->count); | |
d017931c | 775 | hdr->nops++; |
dadf0c27 | 776 | hdr->replen += decode_commit_maxsz; |
1da177e4 LT |
777 | } |
778 | ||
cf8cdbe5 | 779 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 780 | { |
8687b63a | 781 | __be32 *p; |
6c0195a4 | 782 | |
1da177e4 LT |
783 | RESERVE_SPACE(8); |
784 | WRITE32(OP_CREATE); | |
785 | WRITE32(create->ftype); | |
786 | ||
787 | switch (create->ftype) { | |
788 | case NF4LNK: | |
94a6d753 CL |
789 | RESERVE_SPACE(4); |
790 | WRITE32(create->u.symlink.len); | |
791 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
792 | break; |
793 | ||
794 | case NF4BLK: case NF4CHR: | |
795 | RESERVE_SPACE(8); | |
796 | WRITE32(create->u.device.specdata1); | |
797 | WRITE32(create->u.device.specdata2); | |
798 | break; | |
799 | ||
800 | default: | |
801 | break; | |
802 | } | |
803 | ||
804 | RESERVE_SPACE(4 + create->name->len); | |
805 | WRITE32(create->name->len); | |
806 | WRITEMEM(create->name->name, create->name->len); | |
d017931c | 807 | hdr->nops++; |
dadf0c27 | 808 | hdr->replen += decode_create_maxsz; |
1da177e4 | 809 | |
cf8cdbe5 | 810 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
811 | } |
812 | ||
cf8cdbe5 | 813 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 814 | { |
05d564fe | 815 | __be32 *p; |
1da177e4 | 816 | |
05d564fe AA |
817 | RESERVE_SPACE(12); |
818 | WRITE32(OP_GETATTR); | |
819 | WRITE32(1); | |
820 | WRITE32(bitmap); | |
d017931c | 821 | hdr->nops++; |
dadf0c27 | 822 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
823 | } |
824 | ||
cf8cdbe5 | 825 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 826 | { |
05d564fe | 827 | __be32 *p; |
1da177e4 | 828 | |
05d564fe AA |
829 | RESERVE_SPACE(16); |
830 | WRITE32(OP_GETATTR); | |
831 | WRITE32(2); | |
832 | WRITE32(bm0); | |
833 | WRITE32(bm1); | |
d017931c | 834 | hdr->nops++; |
dadf0c27 | 835 | hdr->replen += decode_getattr_maxsz; |
1da177e4 LT |
836 | } |
837 | ||
cf8cdbe5 | 838 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 839 | { |
cf8cdbe5 AA |
840 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
841 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
842 | } |
843 | ||
cf8cdbe5 | 844 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 845 | { |
cf8cdbe5 AA |
846 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
847 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
848 | } |
849 | ||
cf8cdbe5 | 850 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 851 | { |
cf8cdbe5 AA |
852 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
853 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
854 | } |
855 | ||
cf8cdbe5 | 856 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 857 | { |
8687b63a | 858 | __be32 *p; |
1da177e4 LT |
859 | |
860 | RESERVE_SPACE(4); | |
861 | WRITE32(OP_GETFH); | |
d017931c | 862 | hdr->nops++; |
dadf0c27 | 863 | hdr->replen += decode_getfh_maxsz; |
1da177e4 LT |
864 | } |
865 | ||
cf8cdbe5 | 866 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 867 | { |
8687b63a | 868 | __be32 *p; |
1da177e4 LT |
869 | |
870 | RESERVE_SPACE(8 + name->len); | |
871 | WRITE32(OP_LINK); | |
872 | WRITE32(name->len); | |
873 | WRITEMEM(name->name, name->len); | |
d017931c | 874 | hdr->nops++; |
dadf0c27 | 875 | hdr->replen += decode_link_maxsz; |
1da177e4 LT |
876 | } |
877 | ||
911d1aaf TM |
878 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
879 | { | |
880 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
881 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
882 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
883 | } | |
884 | ||
885 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
886 | { | |
887 | if (fl->fl_end == OFFSET_MAX) | |
888 | return ~(uint64_t)0; | |
889 | return fl->fl_end - fl->fl_start + 1; | |
890 | } | |
891 | ||
1da177e4 LT |
892 | /* |
893 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
894 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
895 | */ | |
cf8cdbe5 | 896 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 897 | { |
8687b63a | 898 | __be32 *p; |
1da177e4 LT |
899 | |
900 | RESERVE_SPACE(32); | |
901 | WRITE32(OP_LOCK); | |
911d1aaf TM |
902 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
903 | WRITE32(args->reclaim); | |
904 | WRITE64(args->fl->fl_start); | |
905 | WRITE64(nfs4_lock_length(args->fl)); | |
906 | WRITE32(args->new_lock_owner); | |
907 | if (args->new_lock_owner){ | |
9f958ab8 | 908 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 909 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 910 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
911 | WRITE32(args->lock_seqid->sequence->counter); |
912 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
913 | WRITE32(16); |
914 | WRITEMEM("lock id:", 8); | |
915 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
916 | } |
917 | else { | |
8ae20abd TM |
918 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
919 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 920 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 921 | } |
d017931c | 922 | hdr->nops++; |
dadf0c27 | 923 | hdr->replen += decode_lock_maxsz; |
1da177e4 LT |
924 | } |
925 | ||
cf8cdbe5 | 926 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 927 | { |
8687b63a | 928 | __be32 *p; |
1da177e4 | 929 | |
9f958ab8 | 930 | RESERVE_SPACE(52); |
1da177e4 | 931 | WRITE32(OP_LOCKT); |
911d1aaf TM |
932 | WRITE32(nfs4_lock_type(args->fl, 0)); |
933 | WRITE64(args->fl->fl_start); | |
934 | WRITE64(nfs4_lock_length(args->fl)); | |
935 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
936 | WRITE32(16); |
937 | WRITEMEM("lock id:", 8); | |
938 | WRITE64(args->lock_owner.id); | |
d017931c | 939 | hdr->nops++; |
dadf0c27 | 940 | hdr->replen += decode_lockt_maxsz; |
1da177e4 LT |
941 | } |
942 | ||
cf8cdbe5 | 943 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 944 | { |
8687b63a | 945 | __be32 *p; |
1da177e4 | 946 | |
8ae20abd | 947 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 948 | WRITE32(OP_LOCKU); |
911d1aaf TM |
949 | WRITE32(nfs4_lock_type(args->fl, 0)); |
950 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 951 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
952 | WRITE64(args->fl->fl_start); |
953 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 954 | hdr->nops++; |
dadf0c27 | 955 | hdr->replen += decode_locku_maxsz; |
1da177e4 LT |
956 | } |
957 | ||
cf8cdbe5 | 958 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
959 | { |
960 | int len = name->len; | |
8687b63a | 961 | __be32 *p; |
1da177e4 LT |
962 | |
963 | RESERVE_SPACE(8 + len); | |
964 | WRITE32(OP_LOOKUP); | |
965 | WRITE32(len); | |
966 | WRITEMEM(name->name, len); | |
d017931c | 967 | hdr->nops++; |
dadf0c27 | 968 | hdr->replen += decode_lookup_maxsz; |
1da177e4 LT |
969 | } |
970 | ||
dc0b027d | 971 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 972 | { |
8687b63a | 973 | __be32 *p; |
1da177e4 LT |
974 | |
975 | RESERVE_SPACE(8); | |
dc0b027d | 976 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
977 | case FMODE_READ: |
978 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
979 | break; | |
980 | case FMODE_WRITE: | |
981 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
982 | break; | |
983 | case FMODE_READ|FMODE_WRITE: | |
984 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
985 | break; | |
986 | default: | |
987 | WRITE32(0); | |
1da177e4 LT |
988 | } |
989 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
990 | } | |
991 | ||
992 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
993 | { | |
8687b63a | 994 | __be32 *p; |
1da177e4 LT |
995 | /* |
996 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
997 | * owner 4 = 32 | |
998 | */ | |
999 | RESERVE_SPACE(8); | |
1000 | WRITE32(OP_OPEN); | |
cee54fc9 | 1001 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1002 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 1003 | RESERVE_SPACE(28); |
1da177e4 | 1004 | WRITE64(arg->clientid); |
9f958ab8 TM |
1005 | WRITE32(16); |
1006 | WRITEMEM("open id:", 8); | |
1007 | WRITE64(arg->id); | |
1da177e4 LT |
1008 | } |
1009 | ||
1010 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1011 | { | |
8687b63a | 1012 | __be32 *p; |
1da177e4 LT |
1013 | |
1014 | RESERVE_SPACE(4); | |
1015 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
1016 | case 0: |
1017 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1018 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1019 | break; | |
1020 | default: | |
1021 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1022 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
1023 | } |
1024 | } | |
1025 | ||
1026 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1027 | { | |
8687b63a | 1028 | __be32 *p; |
1da177e4 LT |
1029 | |
1030 | RESERVE_SPACE(4); | |
1031 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1032 | case 0: |
1033 | WRITE32(NFS4_OPEN_NOCREATE); | |
1034 | break; | |
1035 | default: | |
1036 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1037 | WRITE32(NFS4_OPEN_CREATE); | |
1038 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1039 | } |
1040 | } | |
1041 | ||
bd7bf9d5 | 1042 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1043 | { |
8687b63a | 1044 | __be32 *p; |
1da177e4 LT |
1045 | |
1046 | RESERVE_SPACE(4); | |
1047 | switch (delegation_type) { | |
05d564fe AA |
1048 | case 0: |
1049 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1050 | break; | |
1051 | case FMODE_READ: | |
1052 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1053 | break; | |
1054 | case FMODE_WRITE|FMODE_READ: | |
1055 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1056 | break; | |
1057 | default: | |
1058 | BUG(); | |
1da177e4 LT |
1059 | } |
1060 | } | |
1061 | ||
1062 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1063 | { | |
8687b63a | 1064 | __be32 *p; |
1da177e4 LT |
1065 | |
1066 | RESERVE_SPACE(4); | |
1067 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1068 | encode_string(xdr, name->len, name->name); | |
1069 | } | |
1070 | ||
bd7bf9d5 | 1071 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1072 | { |
8687b63a | 1073 | __be32 *p; |
1da177e4 LT |
1074 | |
1075 | RESERVE_SPACE(4); | |
1076 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1077 | encode_delegation_type(xdr, type); | |
1078 | } | |
1079 | ||
1080 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1081 | { | |
8687b63a | 1082 | __be32 *p; |
1da177e4 | 1083 | |
8ae20abd | 1084 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1085 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1086 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1087 | encode_string(xdr, name->len, name->name); |
1088 | } | |
1089 | ||
cf8cdbe5 | 1090 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1091 | { |
1092 | encode_openhdr(xdr, arg); | |
1093 | encode_opentype(xdr, arg); | |
1094 | switch (arg->claim) { | |
05d564fe AA |
1095 | case NFS4_OPEN_CLAIM_NULL: |
1096 | encode_claim_null(xdr, arg->name); | |
1097 | break; | |
1098 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1099 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1100 | break; | |
1101 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1102 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1103 | break; | |
1104 | default: | |
1105 | BUG(); | |
1da177e4 | 1106 | } |
d017931c | 1107 | hdr->nops++; |
dadf0c27 | 1108 | hdr->replen += decode_open_maxsz; |
1da177e4 LT |
1109 | } |
1110 | ||
cf8cdbe5 | 1111 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1112 | { |
8687b63a | 1113 | __be32 *p; |
1da177e4 | 1114 | |
8ae20abd | 1115 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1116 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1117 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1118 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1119 | hdr->nops++; |
dadf0c27 | 1120 | hdr->replen += decode_open_confirm_maxsz; |
1da177e4 LT |
1121 | } |
1122 | ||
cf8cdbe5 | 1123 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1124 | { |
8687b63a | 1125 | __be32 *p; |
1da177e4 | 1126 | |
8ae20abd | 1127 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1128 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1129 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1130 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1131 | encode_share_access(xdr, arg->fmode); |
d017931c | 1132 | hdr->nops++; |
dadf0c27 | 1133 | hdr->replen += decode_open_downgrade_maxsz; |
1da177e4 LT |
1134 | } |
1135 | ||
cf8cdbe5 | 1136 | static void |
d017931c | 1137 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1138 | { |
1139 | int len = fh->size; | |
8687b63a | 1140 | __be32 *p; |
1da177e4 LT |
1141 | |
1142 | RESERVE_SPACE(8 + len); | |
1143 | WRITE32(OP_PUTFH); | |
1144 | WRITE32(len); | |
1145 | WRITEMEM(fh->data, len); | |
d017931c | 1146 | hdr->nops++; |
dadf0c27 | 1147 | hdr->replen += decode_putfh_maxsz; |
1da177e4 LT |
1148 | } |
1149 | ||
cf8cdbe5 | 1150 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1151 | { |
05d564fe | 1152 | __be32 *p; |
6c0195a4 | 1153 | |
05d564fe AA |
1154 | RESERVE_SPACE(4); |
1155 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1156 | hdr->nops++; |
dadf0c27 | 1157 | hdr->replen += decode_putrootfh_maxsz; |
1da177e4 LT |
1158 | } |
1159 | ||
1160 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1161 | { | |
1da177e4 | 1162 | nfs4_stateid stateid; |
8687b63a | 1163 | __be32 *p; |
1da177e4 | 1164 | |
8ae20abd | 1165 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1166 | if (ctx->state != NULL) { |
1167 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1168 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1169 | } else |
8ae20abd | 1170 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1171 | } |
1172 | ||
cf8cdbe5 | 1173 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1174 | { |
8687b63a | 1175 | __be32 *p; |
1da177e4 LT |
1176 | |
1177 | RESERVE_SPACE(4); | |
1178 | WRITE32(OP_READ); | |
1179 | ||
1180 | encode_stateid(xdr, args->context); | |
1181 | ||
1182 | RESERVE_SPACE(12); | |
1183 | WRITE64(args->offset); | |
1184 | WRITE32(args->count); | |
d017931c | 1185 | hdr->nops++; |
dadf0c27 | 1186 | hdr->replen += decode_read_maxsz; |
1da177e4 LT |
1187 | } |
1188 | ||
cf8cdbe5 | 1189 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1190 | { |
97d312d0 MN |
1191 | uint32_t attrs[2] = { |
1192 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1193 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1194 | }; | |
8687b63a | 1195 | __be32 *p; |
1da177e4 | 1196 | |
8ae20abd | 1197 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1198 | WRITE32(OP_READDIR); |
1199 | WRITE64(readdir->cookie); | |
8ae20abd | 1200 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1201 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1202 | WRITE32(readdir->count); | |
1203 | WRITE32(2); | |
97d312d0 MN |
1204 | /* Switch to mounted_on_fileid if the server supports it */ |
1205 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1206 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1207 | else | |
1208 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1209 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1210 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1211 | hdr->nops++; |
dadf0c27 | 1212 | hdr->replen += decode_readdir_maxsz; |
44109241 FI |
1213 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1214 | __func__, | |
eadf4598 TM |
1215 | (unsigned long long)readdir->cookie, |
1216 | ((u32 *)readdir->verifier.data)[0], | |
1217 | ((u32 *)readdir->verifier.data)[1], | |
1218 | attrs[0] & readdir->bitmask[0], | |
1219 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1220 | } |
1221 | ||
cf8cdbe5 | 1222 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1223 | { |
8687b63a | 1224 | __be32 *p; |
1da177e4 LT |
1225 | |
1226 | RESERVE_SPACE(4); | |
1227 | WRITE32(OP_READLINK); | |
d017931c | 1228 | hdr->nops++; |
dadf0c27 | 1229 | hdr->replen += decode_readlink_maxsz; |
1da177e4 LT |
1230 | } |
1231 | ||
cf8cdbe5 | 1232 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1233 | { |
8687b63a | 1234 | __be32 *p; |
1da177e4 LT |
1235 | |
1236 | RESERVE_SPACE(8 + name->len); | |
1237 | WRITE32(OP_REMOVE); | |
1238 | WRITE32(name->len); | |
1239 | WRITEMEM(name->name, name->len); | |
d017931c | 1240 | hdr->nops++; |
dadf0c27 | 1241 | hdr->replen += decode_remove_maxsz; |
1da177e4 LT |
1242 | } |
1243 | ||
cf8cdbe5 | 1244 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1245 | { |
8687b63a | 1246 | __be32 *p; |
1da177e4 LT |
1247 | |
1248 | RESERVE_SPACE(8 + oldname->len); | |
1249 | WRITE32(OP_RENAME); | |
1250 | WRITE32(oldname->len); | |
1251 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1252 | |
1da177e4 LT |
1253 | RESERVE_SPACE(4 + newname->len); |
1254 | WRITE32(newname->len); | |
1255 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1256 | hdr->nops++; |
dadf0c27 | 1257 | hdr->replen += decode_rename_maxsz; |
1da177e4 LT |
1258 | } |
1259 | ||
cf8cdbe5 | 1260 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1261 | { |
8687b63a | 1262 | __be32 *p; |
1da177e4 LT |
1263 | |
1264 | RESERVE_SPACE(12); | |
1265 | WRITE32(OP_RENEW); | |
1266 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1267 | hdr->nops++; |
dadf0c27 | 1268 | hdr->replen += decode_renew_maxsz; |
1da177e4 LT |
1269 | } |
1270 | ||
cf8cdbe5 | 1271 | static void |
d017931c | 1272 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1273 | { |
8687b63a | 1274 | __be32 *p; |
56ae19f3 TM |
1275 | |
1276 | RESERVE_SPACE(4); | |
1277 | WRITE32(OP_RESTOREFH); | |
d017931c | 1278 | hdr->nops++; |
dadf0c27 | 1279 | hdr->replen += decode_restorefh_maxsz; |
56ae19f3 TM |
1280 | } |
1281 | ||
23ec6965 | 1282 | static int |
d017931c | 1283 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1284 | { |
8687b63a | 1285 | __be32 *p; |
23ec6965 | 1286 | |
8ae20abd | 1287 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1288 | WRITE32(OP_SETATTR); |
8ae20abd | 1289 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1290 | RESERVE_SPACE(2*4); |
1291 | WRITE32(1); | |
1292 | WRITE32(FATTR4_WORD0_ACL); | |
1293 | if (arg->acl_len % 4) | |
1294 | return -EINVAL; | |
1295 | RESERVE_SPACE(4); | |
1296 | WRITE32(arg->acl_len); | |
1297 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1298 | hdr->nops++; |
dadf0c27 | 1299 | hdr->replen += decode_setacl_maxsz; |
23ec6965 BF |
1300 | return 0; |
1301 | } | |
1302 | ||
cf8cdbe5 | 1303 | static void |
d017931c | 1304 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1305 | { |
8687b63a | 1306 | __be32 *p; |
1da177e4 LT |
1307 | |
1308 | RESERVE_SPACE(4); | |
1309 | WRITE32(OP_SAVEFH); | |
d017931c | 1310 | hdr->nops++; |
dadf0c27 | 1311 | hdr->replen += decode_savefh_maxsz; |
1da177e4 LT |
1312 | } |
1313 | ||
cf8cdbe5 | 1314 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1315 | { |
8687b63a | 1316 | __be32 *p; |
6c0195a4 | 1317 | |
05d564fe AA |
1318 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1319 | WRITE32(OP_SETATTR); | |
8ae20abd | 1320 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1321 | hdr->nops++; |
dadf0c27 | 1322 | hdr->replen += decode_setattr_maxsz; |
cf8cdbe5 | 1323 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1324 | } |
1325 | ||
cf8cdbe5 | 1326 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1327 | { |
8687b63a | 1328 | __be32 *p; |
1da177e4 | 1329 | |
8ae20abd | 1330 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1331 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1332 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1333 | |
1334 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1335 | RESERVE_SPACE(4); | |
1336 | WRITE32(setclientid->sc_prog); | |
1337 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1338 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1339 | RESERVE_SPACE(4); | |
1340 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1341 | hdr->nops++; |
dadf0c27 | 1342 | hdr->replen += decode_setclientid_maxsz; |
1da177e4 LT |
1343 | } |
1344 | ||
cf8cdbe5 | 1345 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1346 | { |
05d564fe | 1347 | __be32 *p; |
1da177e4 | 1348 | |
05d564fe AA |
1349 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1350 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1351 | WRITE64(client_state->cl_clientid); | |
1352 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1353 | hdr->nops++; |
dadf0c27 | 1354 | hdr->replen += decode_setclientid_confirm_maxsz; |
1da177e4 LT |
1355 | } |
1356 | ||
cf8cdbe5 | 1357 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1358 | { |
8687b63a | 1359 | __be32 *p; |
1da177e4 LT |
1360 | |
1361 | RESERVE_SPACE(4); | |
1362 | WRITE32(OP_WRITE); | |
1363 | ||
1364 | encode_stateid(xdr, args->context); | |
1365 | ||
1366 | RESERVE_SPACE(16); | |
1367 | WRITE64(args->offset); | |
1368 | WRITE32(args->stable); | |
1369 | WRITE32(args->count); | |
1370 | ||
1371 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1372 | hdr->nops++; |
dadf0c27 | 1373 | hdr->replen += decode_write_maxsz; |
1da177e4 LT |
1374 | } |
1375 | ||
cf8cdbe5 | 1376 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1377 | { |
8687b63a | 1378 | __be32 *p; |
1da177e4 | 1379 | |
8ae20abd | 1380 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1381 | |
1382 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1383 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1384 | hdr->nops++; |
dadf0c27 | 1385 | hdr->replen += decode_delegreturn_maxsz; |
1da177e4 LT |
1386 | } |
1387 | /* | |
1388 | * END OF "GENERIC" ENCODE ROUTINES. | |
1389 | */ | |
1390 | ||
1391 | /* | |
1392 | * Encode an ACCESS request | |
1393 | */ | |
8687b63a | 1394 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1395 | { |
1396 | struct xdr_stream xdr; | |
1397 | struct compound_hdr hdr = { | |
d017931c | 1398 | .nops = 0, |
1da177e4 | 1399 | }; |
1da177e4 LT |
1400 | |
1401 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1402 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1403 | encode_putfh(&xdr, args->fh, &hdr); |
1404 | encode_access(&xdr, args->access, &hdr); | |
1405 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1406 | encode_nops(&hdr); |
cf8cdbe5 | 1407 | return 0; |
1da177e4 LT |
1408 | } |
1409 | ||
1410 | /* | |
1411 | * Encode LOOKUP request | |
1412 | */ | |
8687b63a | 1413 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1414 | { |
1415 | struct xdr_stream xdr; | |
1416 | struct compound_hdr hdr = { | |
d017931c | 1417 | .nops = 0, |
1da177e4 | 1418 | }; |
1da177e4 LT |
1419 | |
1420 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1421 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1422 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1423 | encode_lookup(&xdr, args->name, &hdr); | |
1424 | encode_getfh(&xdr, &hdr); | |
1425 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1426 | encode_nops(&hdr); |
cf8cdbe5 | 1427 | return 0; |
1da177e4 LT |
1428 | } |
1429 | ||
1430 | /* | |
1431 | * Encode LOOKUP_ROOT request | |
1432 | */ | |
8687b63a | 1433 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1434 | { |
1435 | struct xdr_stream xdr; | |
1436 | struct compound_hdr hdr = { | |
d017931c | 1437 | .nops = 0, |
1da177e4 | 1438 | }; |
1da177e4 LT |
1439 | |
1440 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1441 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1442 | encode_putrootfh(&xdr, &hdr); |
1443 | encode_getfh(&xdr, &hdr); | |
1444 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1445 | encode_nops(&hdr); |
cf8cdbe5 | 1446 | return 0; |
1da177e4 LT |
1447 | } |
1448 | ||
1449 | /* | |
1450 | * Encode REMOVE request | |
1451 | */ | |
4fdc17b2 | 1452 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1453 | { |
1454 | struct xdr_stream xdr; | |
1455 | struct compound_hdr hdr = { | |
d017931c | 1456 | .nops = 0, |
1da177e4 | 1457 | }; |
1da177e4 LT |
1458 | |
1459 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1460 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1461 | encode_putfh(&xdr, args->fh, &hdr); |
1462 | encode_remove(&xdr, &args->name, &hdr); | |
1463 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1464 | encode_nops(&hdr); |
cf8cdbe5 | 1465 | return 0; |
1da177e4 LT |
1466 | } |
1467 | ||
1468 | /* | |
1469 | * Encode RENAME request | |
1470 | */ | |
8687b63a | 1471 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1472 | { |
1473 | struct xdr_stream xdr; | |
1474 | struct compound_hdr hdr = { | |
d017931c | 1475 | .nops = 0, |
1da177e4 | 1476 | }; |
1da177e4 LT |
1477 | |
1478 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1479 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1480 | encode_putfh(&xdr, args->old_dir, &hdr); |
1481 | encode_savefh(&xdr, &hdr); | |
1482 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1483 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1484 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1485 | encode_restorefh(&xdr, &hdr); | |
1486 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1487 | encode_nops(&hdr); |
cf8cdbe5 | 1488 | return 0; |
1da177e4 LT |
1489 | } |
1490 | ||
1491 | /* | |
1492 | * Encode LINK request | |
1493 | */ | |
8687b63a | 1494 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1495 | { |
1496 | struct xdr_stream xdr; | |
1497 | struct compound_hdr hdr = { | |
d017931c | 1498 | .nops = 0, |
1da177e4 | 1499 | }; |
1da177e4 LT |
1500 | |
1501 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1502 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1503 | encode_putfh(&xdr, args->fh, &hdr); |
1504 | encode_savefh(&xdr, &hdr); | |
1505 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1506 | encode_link(&xdr, args->name, &hdr); | |
1507 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1508 | encode_restorefh(&xdr, &hdr); | |
1509 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1510 | encode_nops(&hdr); |
cf8cdbe5 | 1511 | return 0; |
1da177e4 LT |
1512 | } |
1513 | ||
1514 | /* | |
1515 | * Encode CREATE request | |
1516 | */ | |
8687b63a | 1517 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1518 | { |
1519 | struct xdr_stream xdr; | |
1520 | struct compound_hdr hdr = { | |
d017931c | 1521 | .nops = 0, |
1da177e4 | 1522 | }; |
1da177e4 LT |
1523 | |
1524 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1525 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1526 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1527 | encode_savefh(&xdr, &hdr); | |
1528 | encode_create(&xdr, args, &hdr); | |
1529 | encode_getfh(&xdr, &hdr); | |
1530 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1531 | encode_restorefh(&xdr, &hdr); | |
1532 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1533 | encode_nops(&hdr); |
cf8cdbe5 | 1534 | return 0; |
1da177e4 LT |
1535 | } |
1536 | ||
1537 | /* | |
1538 | * Encode SYMLINK request | |
1539 | */ | |
8687b63a | 1540 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1541 | { |
1542 | return nfs4_xdr_enc_create(req, p, args); | |
1543 | } | |
1544 | ||
1545 | /* | |
1546 | * Encode GETATTR request | |
1547 | */ | |
8687b63a | 1548 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1549 | { |
1550 | struct xdr_stream xdr; | |
1551 | struct compound_hdr hdr = { | |
d017931c | 1552 | .nops = 0, |
1da177e4 | 1553 | }; |
1da177e4 LT |
1554 | |
1555 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1556 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1557 | encode_putfh(&xdr, args->fh, &hdr); |
1558 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1559 | encode_nops(&hdr); |
cf8cdbe5 | 1560 | return 0; |
1da177e4 LT |
1561 | } |
1562 | ||
1563 | /* | |
1564 | * Encode a CLOSE request | |
1565 | */ | |
8687b63a | 1566 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1567 | { |
05d564fe AA |
1568 | struct xdr_stream xdr; |
1569 | struct compound_hdr hdr = { | |
d017931c | 1570 | .nops = 0, |
05d564fe | 1571 | }; |
05d564fe AA |
1572 | |
1573 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1574 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1575 | encode_putfh(&xdr, args->fh, &hdr); |
1576 | encode_close(&xdr, args, &hdr); | |
1577 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1578 | encode_nops(&hdr); |
cf8cdbe5 | 1579 | return 0; |
1da177e4 LT |
1580 | } |
1581 | ||
1582 | /* | |
1583 | * Encode an OPEN request | |
1584 | */ | |
8687b63a | 1585 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1586 | { |
1587 | struct xdr_stream xdr; | |
1588 | struct compound_hdr hdr = { | |
d017931c | 1589 | .nops = 0, |
1da177e4 | 1590 | }; |
1da177e4 LT |
1591 | |
1592 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1593 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1594 | encode_putfh(&xdr, args->fh, &hdr); |
1595 | encode_savefh(&xdr, &hdr); | |
1596 | encode_open(&xdr, args, &hdr); | |
1597 | encode_getfh(&xdr, &hdr); | |
1598 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1599 | encode_restorefh(&xdr, &hdr); | |
1600 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1601 | encode_nops(&hdr); |
cf8cdbe5 | 1602 | return 0; |
1da177e4 LT |
1603 | } |
1604 | ||
1605 | /* | |
1606 | * Encode an OPEN_CONFIRM request | |
1607 | */ | |
8687b63a | 1608 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1609 | { |
1610 | struct xdr_stream xdr; | |
1611 | struct compound_hdr hdr = { | |
d017931c | 1612 | .nops = 0, |
1da177e4 | 1613 | }; |
1da177e4 LT |
1614 | |
1615 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1616 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1617 | encode_putfh(&xdr, args->fh, &hdr); |
1618 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1619 | encode_nops(&hdr); |
cf8cdbe5 | 1620 | return 0; |
1da177e4 LT |
1621 | } |
1622 | ||
1623 | /* | |
1624 | * Encode an OPEN request with no attributes. | |
1625 | */ | |
8687b63a | 1626 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1627 | { |
1628 | struct xdr_stream xdr; | |
1629 | struct compound_hdr hdr = { | |
d017931c | 1630 | .nops = 0, |
1da177e4 | 1631 | }; |
1da177e4 LT |
1632 | |
1633 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1634 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1635 | encode_putfh(&xdr, args->fh, &hdr); |
1636 | encode_open(&xdr, args, &hdr); | |
1637 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1638 | encode_nops(&hdr); |
cf8cdbe5 | 1639 | return 0; |
1da177e4 LT |
1640 | } |
1641 | ||
1642 | /* | |
1643 | * Encode an OPEN_DOWNGRADE request | |
1644 | */ | |
8687b63a | 1645 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1646 | { |
1647 | struct xdr_stream xdr; | |
1648 | struct compound_hdr hdr = { | |
d017931c | 1649 | .nops = 0, |
1da177e4 | 1650 | }; |
1da177e4 LT |
1651 | |
1652 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1653 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1654 | encode_putfh(&xdr, args->fh, &hdr); |
1655 | encode_open_downgrade(&xdr, args, &hdr); | |
1656 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1657 | encode_nops(&hdr); |
cf8cdbe5 | 1658 | return 0; |
1da177e4 LT |
1659 | } |
1660 | ||
1661 | /* | |
1662 | * Encode a LOCK request | |
1663 | */ | |
8687b63a | 1664 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1665 | { |
1666 | struct xdr_stream xdr; | |
1667 | struct compound_hdr hdr = { | |
d017931c | 1668 | .nops = 0, |
1da177e4 | 1669 | }; |
1da177e4 LT |
1670 | |
1671 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1672 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1673 | encode_putfh(&xdr, args->fh, &hdr); |
1674 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1675 | encode_nops(&hdr); |
cf8cdbe5 | 1676 | return 0; |
1da177e4 LT |
1677 | } |
1678 | ||
1679 | /* | |
1680 | * Encode a LOCKT request | |
1681 | */ | |
8687b63a | 1682 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1683 | { |
1684 | struct xdr_stream xdr; | |
1685 | struct compound_hdr hdr = { | |
d017931c | 1686 | .nops = 0, |
1da177e4 | 1687 | }; |
1da177e4 LT |
1688 | |
1689 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1690 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1691 | encode_putfh(&xdr, args->fh, &hdr); |
1692 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1693 | encode_nops(&hdr); |
cf8cdbe5 | 1694 | return 0; |
1da177e4 LT |
1695 | } |
1696 | ||
1697 | /* | |
1698 | * Encode a LOCKU request | |
1699 | */ | |
8687b63a | 1700 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1701 | { |
1702 | struct xdr_stream xdr; | |
1703 | struct compound_hdr hdr = { | |
d017931c | 1704 | .nops = 0, |
1da177e4 | 1705 | }; |
1da177e4 LT |
1706 | |
1707 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1708 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1709 | encode_putfh(&xdr, args->fh, &hdr); |
1710 | encode_locku(&xdr, args, &hdr); | |
d017931c | 1711 | encode_nops(&hdr); |
cf8cdbe5 | 1712 | return 0; |
1da177e4 LT |
1713 | } |
1714 | ||
1715 | /* | |
1716 | * Encode a READLINK request | |
1717 | */ | |
8687b63a | 1718 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1719 | { |
1720 | struct xdr_stream xdr; | |
1721 | struct compound_hdr hdr = { | |
d017931c | 1722 | .nops = 0, |
1da177e4 | 1723 | }; |
e3a535e1 TM |
1724 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1725 | unsigned int replen; | |
1da177e4 LT |
1726 | |
1727 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1728 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1729 | encode_putfh(&xdr, args->fh, &hdr); |
1730 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 TM |
1731 | |
1732 | /* set up reply kvec | |
1733 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1734 | * + OP_READLINK + status + string length = 8 | |
1735 | */ | |
1736 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; | |
1737 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1738 | args->pgbase, args->pglen); | |
d017931c | 1739 | encode_nops(&hdr); |
cf8cdbe5 | 1740 | return 0; |
1da177e4 LT |
1741 | } |
1742 | ||
1743 | /* | |
1744 | * Encode a READDIR request | |
1745 | */ | |
8687b63a | 1746 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1747 | { |
1748 | struct xdr_stream xdr; | |
1749 | struct compound_hdr hdr = { | |
d017931c | 1750 | .nops = 0, |
1da177e4 | 1751 | }; |
d6ac02df TM |
1752 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1753 | int replen; | |
1da177e4 LT |
1754 | |
1755 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1756 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1757 | encode_putfh(&xdr, args->fh, &hdr); |
1758 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df TM |
1759 | |
1760 | /* set up reply kvec | |
1761 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1762 | * + OP_READDIR + status + verifer(2) = 9 | |
1763 | */ | |
1764 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; | |
1765 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1766 | args->pgbase, args->count); | |
1767 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
3110ff80 | 1768 | __func__, replen, args->pages, |
d6ac02df | 1769 | args->pgbase, args->count); |
d017931c | 1770 | encode_nops(&hdr); |
cf8cdbe5 | 1771 | return 0; |
1da177e4 LT |
1772 | } |
1773 | ||
1774 | /* | |
1775 | * Encode a READ request | |
1776 | */ | |
8687b63a | 1777 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1778 | { |
1be27f36 | 1779 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 LT |
1780 | struct xdr_stream xdr; |
1781 | struct compound_hdr hdr = { | |
d017931c | 1782 | .nops = 0, |
1da177e4 | 1783 | }; |
cf8cdbe5 | 1784 | int replen; |
1da177e4 LT |
1785 | |
1786 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1787 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1788 | encode_putfh(&xdr, args->fh, &hdr); |
1789 | encode_read(&xdr, args, &hdr); | |
1da177e4 LT |
1790 | |
1791 | /* set up reply kvec | |
1792 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status | |
1793 | * + OP_READ + status + eof + datalen = 9 | |
1794 | */ | |
1795 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; | |
1796 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1797 | args->pages, args->pgbase, args->count); | |
4f22ccc3 | 1798 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 1799 | encode_nops(&hdr); |
cf8cdbe5 | 1800 | return 0; |
1da177e4 LT |
1801 | } |
1802 | ||
1803 | /* | |
1804 | * Encode an SETATTR request | |
1805 | */ | |
8687b63a | 1806 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 1807 | { |
05d564fe AA |
1808 | struct xdr_stream xdr; |
1809 | struct compound_hdr hdr = { | |
d017931c | 1810 | .nops = 0, |
05d564fe | 1811 | }; |
05d564fe AA |
1812 | |
1813 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1814 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1815 | encode_putfh(&xdr, args->fh, &hdr); |
1816 | encode_setattr(&xdr, args, args->server, &hdr); | |
1817 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1818 | encode_nops(&hdr); |
cf8cdbe5 | 1819 | return 0; |
1da177e4 LT |
1820 | } |
1821 | ||
029d105e BF |
1822 | /* |
1823 | * Encode a GETACL request | |
1824 | */ | |
1825 | static int | |
8687b63a | 1826 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1827 | struct nfs_getaclargs *args) |
1828 | { | |
1829 | struct xdr_stream xdr; | |
1be27f36 | 1830 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
029d105e | 1831 | struct compound_hdr hdr = { |
d017931c | 1832 | .nops = 0, |
029d105e | 1833 | }; |
cf8cdbe5 | 1834 | int replen; |
029d105e BF |
1835 | |
1836 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1837 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1838 | encode_putfh(&xdr, args->fh, &hdr); |
1839 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); | |
1840 | ||
029d105e BF |
1841 | /* set up reply buffer: */ |
1842 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; | |
1843 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1844 | args->acl_pages, args->acl_pgbase, args->acl_len); | |
d017931c | 1845 | encode_nops(&hdr); |
cf8cdbe5 | 1846 | return 0; |
029d105e BF |
1847 | } |
1848 | ||
1da177e4 LT |
1849 | /* |
1850 | * Encode a WRITE request | |
1851 | */ | |
8687b63a | 1852 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1853 | { |
1854 | struct xdr_stream xdr; | |
1855 | struct compound_hdr hdr = { | |
d017931c | 1856 | .nops = 0, |
1da177e4 | 1857 | }; |
1da177e4 LT |
1858 | |
1859 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1860 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1861 | encode_putfh(&xdr, args->fh, &hdr); |
1862 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 1863 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 1864 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 1865 | encode_nops(&hdr); |
cf8cdbe5 | 1866 | return 0; |
1da177e4 LT |
1867 | } |
1868 | ||
1869 | /* | |
1870 | * a COMMIT request | |
1871 | */ | |
8687b63a | 1872 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1873 | { |
1874 | struct xdr_stream xdr; | |
1875 | struct compound_hdr hdr = { | |
d017931c | 1876 | .nops = 0, |
1da177e4 | 1877 | }; |
1da177e4 LT |
1878 | |
1879 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1880 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1881 | encode_putfh(&xdr, args->fh, &hdr); |
1882 | encode_commit(&xdr, args, &hdr); | |
1883 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1884 | encode_nops(&hdr); |
cf8cdbe5 | 1885 | return 0; |
1da177e4 LT |
1886 | } |
1887 | ||
1888 | /* | |
1889 | * FSINFO request | |
1890 | */ | |
8687b63a | 1891 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
1892 | { |
1893 | struct xdr_stream xdr; | |
1894 | struct compound_hdr hdr = { | |
d017931c | 1895 | .nops = 0, |
1da177e4 | 1896 | }; |
1da177e4 LT |
1897 | |
1898 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1899 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1900 | encode_putfh(&xdr, args->fh, &hdr); |
1901 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 1902 | encode_nops(&hdr); |
cf8cdbe5 | 1903 | return 0; |
1da177e4 LT |
1904 | } |
1905 | ||
1906 | /* | |
1907 | * a PATHCONF request | |
1908 | */ | |
8687b63a | 1909 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 1910 | { |
1da177e4 LT |
1911 | struct xdr_stream xdr; |
1912 | struct compound_hdr hdr = { | |
d017931c | 1913 | .nops = 0, |
1da177e4 | 1914 | }; |
1da177e4 LT |
1915 | |
1916 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1917 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1918 | encode_putfh(&xdr, args->fh, &hdr); |
1919 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
1920 | &hdr); | |
d017931c | 1921 | encode_nops(&hdr); |
cf8cdbe5 | 1922 | return 0; |
1da177e4 LT |
1923 | } |
1924 | ||
1925 | /* | |
1926 | * a STATFS request | |
1927 | */ | |
8687b63a | 1928 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 1929 | { |
1da177e4 LT |
1930 | struct xdr_stream xdr; |
1931 | struct compound_hdr hdr = { | |
d017931c | 1932 | .nops = 0, |
1da177e4 | 1933 | }; |
1da177e4 LT |
1934 | |
1935 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1936 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1937 | encode_putfh(&xdr, args->fh, &hdr); |
1938 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
1939 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 1940 | encode_nops(&hdr); |
cf8cdbe5 | 1941 | return 0; |
1da177e4 LT |
1942 | } |
1943 | ||
1944 | /* | |
1945 | * GETATTR_BITMAP request | |
1946 | */ | |
43652ad5 BH |
1947 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
1948 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
1949 | { |
1950 | struct xdr_stream xdr; | |
1951 | struct compound_hdr hdr = { | |
d017931c | 1952 | .nops = 0, |
1da177e4 | 1953 | }; |
1da177e4 LT |
1954 | |
1955 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1956 | encode_compound_hdr(&xdr, req, &hdr); |
43652ad5 | 1957 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
1958 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
1959 | FATTR4_WORD0_LINK_SUPPORT| | |
1960 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
1961 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 1962 | encode_nops(&hdr); |
cf8cdbe5 | 1963 | return 0; |
1da177e4 LT |
1964 | } |
1965 | ||
1966 | /* | |
1967 | * a RENEW request | |
1968 | */ | |
8687b63a | 1969 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1970 | { |
1971 | struct xdr_stream xdr; | |
1972 | struct compound_hdr hdr = { | |
d017931c | 1973 | .nops = 0, |
1da177e4 LT |
1974 | }; |
1975 | ||
1976 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1977 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1978 | encode_renew(&xdr, clp, &hdr); |
d017931c | 1979 | encode_nops(&hdr); |
cf8cdbe5 | 1980 | return 0; |
1da177e4 LT |
1981 | } |
1982 | ||
1983 | /* | |
1984 | * a SETCLIENTID request | |
1985 | */ | |
8687b63a | 1986 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
1987 | { |
1988 | struct xdr_stream xdr; | |
1989 | struct compound_hdr hdr = { | |
d017931c | 1990 | .nops = 0, |
1da177e4 LT |
1991 | }; |
1992 | ||
1993 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1994 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1995 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 1996 | encode_nops(&hdr); |
cf8cdbe5 | 1997 | return 0; |
1da177e4 LT |
1998 | } |
1999 | ||
2000 | /* | |
2001 | * a SETCLIENTID_CONFIRM request | |
2002 | */ | |
8687b63a | 2003 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2004 | { |
2005 | struct xdr_stream xdr; | |
2006 | struct compound_hdr hdr = { | |
d017931c | 2007 | .nops = 0, |
1da177e4 LT |
2008 | }; |
2009 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
2010 | |
2011 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2012 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2013 | encode_setclientid_confirm(&xdr, clp, &hdr); |
2014 | encode_putrootfh(&xdr, &hdr); | |
2015 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 2016 | encode_nops(&hdr); |
cf8cdbe5 | 2017 | return 0; |
1da177e4 LT |
2018 | } |
2019 | ||
2020 | /* | |
2021 | * DELEGRETURN request | |
2022 | */ | |
8687b63a | 2023 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2024 | { |
2025 | struct xdr_stream xdr; | |
2026 | struct compound_hdr hdr = { | |
d017931c | 2027 | .nops = 0, |
1da177e4 | 2028 | }; |
1da177e4 LT |
2029 | |
2030 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2031 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2032 | encode_putfh(&xdr, args->fhandle, &hdr); |
2033 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2034 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2035 | encode_nops(&hdr); |
cf8cdbe5 | 2036 | return 0; |
1da177e4 LT |
2037 | } |
2038 | ||
683b57b4 TM |
2039 | /* |
2040 | * Encode FS_LOCATIONS request | |
2041 | */ | |
8687b63a | 2042 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2043 | { |
2044 | struct xdr_stream xdr; | |
2045 | struct compound_hdr hdr = { | |
d017931c | 2046 | .nops = 0, |
683b57b4 | 2047 | }; |
1be27f36 | 2048 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
683b57b4 | 2049 | int replen; |
683b57b4 TM |
2050 | |
2051 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2052 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2053 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2054 | encode_lookup(&xdr, args->name, &hdr); | |
2055 | encode_fs_locations(&xdr, args->bitmask, &hdr); | |
2056 | ||
683b57b4 | 2057 | /* set up reply |
830b8e33 | 2058 | * toplevel_status + OP_PUTFH + status |
683b57b4 TM |
2059 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
2060 | */ | |
2061 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; | |
2062 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, | |
2063 | 0, PAGE_SIZE); | |
d017931c | 2064 | encode_nops(&hdr); |
cf8cdbe5 | 2065 | return 0; |
683b57b4 TM |
2066 | } |
2067 | ||
1da177e4 LT |
2068 | /* |
2069 | * START OF "GENERIC" DECODE ROUTINES. | |
2070 | * These may look a little ugly since they are imported from a "generic" | |
2071 | * set of XDR encode/decode routines which are intended to be shared by | |
2072 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2073 | * | |
2074 | * If the pain of reading these is too great, it should be a straightforward | |
2075 | * task to translate them into Linux-specific versions which are more | |
2076 | * consistent with the style used in NFSv2/v3... | |
2077 | */ | |
2078 | #define READ32(x) (x) = ntohl(*p++) | |
2079 | #define READ64(x) do { \ | |
2080 | (x) = (u64)ntohl(*p++) << 32; \ | |
2081 | (x) |= ntohl(*p++); \ | |
2082 | } while (0) | |
2083 | #define READTIME(x) do { \ | |
2084 | p++; \ | |
2085 | (x.tv_sec) = ntohl(*p++); \ | |
2086 | (x.tv_nsec) = ntohl(*p++); \ | |
2087 | } while (0) | |
2088 | #define COPYMEM(x,nbytes) do { \ | |
2089 | memcpy((x), p, nbytes); \ | |
2090 | p += XDR_QUADLEN(nbytes); \ | |
2091 | } while (0) | |
2092 | ||
2093 | #define READ_BUF(nbytes) do { \ | |
2094 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2095 | if (unlikely(!p)) { \ |
fe82a183 | 2096 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2097 | " buffer\n", __func__); \ |
fe82a183 | 2098 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2099 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2100 | return -EIO; \ |
2101 | } \ | |
2102 | } while (0) | |
2103 | ||
683b57b4 | 2104 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2105 | { |
8687b63a | 2106 | __be32 *p; |
1da177e4 LT |
2107 | |
2108 | READ_BUF(4); | |
2109 | READ32(*len); | |
2110 | READ_BUF(*len); | |
2111 | *string = (char *)p; | |
2112 | return 0; | |
2113 | } | |
2114 | ||
2115 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2116 | { | |
8687b63a | 2117 | __be32 *p; |
1da177e4 LT |
2118 | |
2119 | READ_BUF(8); | |
2120 | READ32(hdr->status); | |
2121 | READ32(hdr->taglen); | |
6c0195a4 | 2122 | |
1da177e4 LT |
2123 | READ_BUF(hdr->taglen + 4); |
2124 | hdr->tag = (char *)p; | |
2125 | p += XDR_QUADLEN(hdr->taglen); | |
2126 | READ32(hdr->nops); | |
aadf6152 BH |
2127 | if (unlikely(hdr->nops < 1)) |
2128 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2129 | return 0; |
2130 | } | |
2131 | ||
2132 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2133 | { | |
8687b63a | 2134 | __be32 *p; |
1da177e4 LT |
2135 | uint32_t opnum; |
2136 | int32_t nfserr; | |
2137 | ||
2138 | READ_BUF(8); | |
2139 | READ32(opnum); | |
2140 | if (opnum != expected) { | |
fe82a183 CL |
2141 | dprintk("nfs: Server returned operation" |
2142 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2143 | opnum, expected); |
2144 | return -EIO; | |
2145 | } | |
2146 | READ32(nfserr); | |
2147 | if (nfserr != NFS_OK) | |
856dff3d | 2148 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2149 | return 0; |
2150 | } | |
2151 | ||
2152 | /* Dummy routine */ | |
adfa6f98 | 2153 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2154 | { |
8687b63a | 2155 | __be32 *p; |
683b57b4 | 2156 | unsigned int strlen; |
1da177e4 LT |
2157 | char *str; |
2158 | ||
2159 | READ_BUF(12); | |
2160 | return decode_opaque_inline(xdr, &strlen, &str); | |
2161 | } | |
2162 | ||
2163 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2164 | { | |
8687b63a AV |
2165 | uint32_t bmlen; |
2166 | __be32 *p; | |
1da177e4 LT |
2167 | |
2168 | READ_BUF(4); | |
2169 | READ32(bmlen); | |
2170 | ||
2171 | bitmap[0] = bitmap[1] = 0; | |
2172 | READ_BUF((bmlen << 2)); | |
2173 | if (bmlen > 0) { | |
2174 | READ32(bitmap[0]); | |
2175 | if (bmlen > 1) | |
2176 | READ32(bitmap[1]); | |
2177 | } | |
2178 | return 0; | |
2179 | } | |
2180 | ||
8687b63a | 2181 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2182 | { |
8687b63a | 2183 | __be32 *p; |
1da177e4 LT |
2184 | |
2185 | READ_BUF(4); | |
2186 | READ32(*attrlen); | |
2187 | *savep = xdr->p; | |
2188 | return 0; | |
2189 | } | |
2190 | ||
2191 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2192 | { | |
2193 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2194 | decode_attr_bitmap(xdr, bitmask); | |
2195 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2196 | } else | |
2197 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2198 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2199 | return 0; |
2200 | } | |
2201 | ||
2202 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2203 | { | |
8687b63a | 2204 | __be32 *p; |
409924e4 | 2205 | int ret = 0; |
1da177e4 LT |
2206 | |
2207 | *type = 0; | |
2208 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2209 | return -EIO; | |
2210 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2211 | READ_BUF(4); | |
2212 | READ32(*type); | |
2213 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2214 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2215 | return -EIO; |
2216 | } | |
2217 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2218 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2219 | } |
bca79478 | 2220 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2221 | return ret; |
1da177e4 LT |
2222 | } |
2223 | ||
2224 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2225 | { | |
8687b63a | 2226 | __be32 *p; |
409924e4 | 2227 | int ret = 0; |
1da177e4 LT |
2228 | |
2229 | *change = 0; | |
2230 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2231 | return -EIO; | |
2232 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2233 | READ_BUF(8); | |
2234 | READ64(*change); | |
2235 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2236 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2237 | } |
3110ff80 | 2238 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2239 | (unsigned long long)*change); |
409924e4 | 2240 | return ret; |
1da177e4 LT |
2241 | } |
2242 | ||
2243 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2244 | { | |
8687b63a | 2245 | __be32 *p; |
409924e4 | 2246 | int ret = 0; |
1da177e4 LT |
2247 | |
2248 | *size = 0; | |
2249 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2250 | return -EIO; | |
2251 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2252 | READ_BUF(8); | |
2253 | READ64(*size); | |
2254 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2255 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2256 | } |
3110ff80 | 2257 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2258 | return ret; |
1da177e4 LT |
2259 | } |
2260 | ||
2261 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2262 | { | |
8687b63a | 2263 | __be32 *p; |
1da177e4 LT |
2264 | |
2265 | *res = 0; | |
2266 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2267 | return -EIO; | |
2268 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2269 | READ_BUF(4); | |
2270 | READ32(*res); | |
2271 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2272 | } | |
3110ff80 | 2273 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2274 | return 0; |
2275 | } | |
2276 | ||
2277 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2278 | { | |
8687b63a | 2279 | __be32 *p; |
1da177e4 LT |
2280 | |
2281 | *res = 0; | |
2282 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2283 | return -EIO; | |
2284 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2285 | READ_BUF(4); | |
2286 | READ32(*res); | |
2287 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2288 | } | |
3110ff80 | 2289 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2290 | return 0; |
2291 | } | |
2292 | ||
8b4bdcf8 | 2293 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2294 | { |
8687b63a | 2295 | __be32 *p; |
409924e4 | 2296 | int ret = 0; |
1da177e4 LT |
2297 | |
2298 | fsid->major = 0; | |
2299 | fsid->minor = 0; | |
2300 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2301 | return -EIO; | |
2302 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2303 | READ_BUF(16); | |
2304 | READ64(fsid->major); | |
2305 | READ64(fsid->minor); | |
2306 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2307 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2308 | } |
3110ff80 | 2309 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2310 | (unsigned long long)fsid->major, |
2311 | (unsigned long long)fsid->minor); | |
409924e4 | 2312 | return ret; |
1da177e4 LT |
2313 | } |
2314 | ||
2315 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2316 | { | |
8687b63a | 2317 | __be32 *p; |
1da177e4 LT |
2318 | |
2319 | *res = 60; | |
2320 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2321 | return -EIO; | |
2322 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2323 | READ_BUF(4); | |
2324 | READ32(*res); | |
2325 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2326 | } | |
3110ff80 | 2327 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2328 | return 0; |
2329 | } | |
2330 | ||
2331 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2332 | { | |
8687b63a | 2333 | __be32 *p; |
1da177e4 LT |
2334 | |
2335 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2336 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2337 | return -EIO; | |
2338 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2339 | READ_BUF(4); | |
2340 | READ32(*res); | |
2341 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2342 | } | |
3110ff80 | 2343 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2344 | return 0; |
2345 | } | |
2346 | ||
2347 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2348 | { | |
8687b63a | 2349 | __be32 *p; |
409924e4 | 2350 | int ret = 0; |
1da177e4 LT |
2351 | |
2352 | *fileid = 0; | |
2353 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2354 | return -EIO; | |
2355 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2356 | READ_BUF(8); | |
2357 | READ64(*fileid); | |
2358 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2359 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2360 | } |
3110ff80 | 2361 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2362 | return ret; |
1da177e4 LT |
2363 | } |
2364 | ||
99baf625 MN |
2365 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2366 | { | |
8687b63a | 2367 | __be32 *p; |
409924e4 | 2368 | int ret = 0; |
99baf625 MN |
2369 | |
2370 | *fileid = 0; | |
2371 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2372 | return -EIO; | |
2373 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2374 | READ_BUF(8); | |
2375 | READ64(*fileid); | |
2376 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2377 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2378 | } |
3110ff80 | 2379 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2380 | return ret; |
99baf625 MN |
2381 | } |
2382 | ||
1da177e4 LT |
2383 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2384 | { | |
8687b63a | 2385 | __be32 *p; |
1da177e4 LT |
2386 | int status = 0; |
2387 | ||
2388 | *res = 0; | |
2389 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2390 | return -EIO; | |
2391 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2392 | READ_BUF(8); | |
2393 | READ64(*res); | |
2394 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2395 | } | |
3110ff80 | 2396 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2397 | return status; |
2398 | } | |
2399 | ||
2400 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2401 | { | |
8687b63a | 2402 | __be32 *p; |
1da177e4 LT |
2403 | int status = 0; |
2404 | ||
2405 | *res = 0; | |
2406 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2407 | return -EIO; | |
2408 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2409 | READ_BUF(8); | |
2410 | READ64(*res); | |
2411 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2412 | } | |
3110ff80 | 2413 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2414 | return status; |
2415 | } | |
2416 | ||
2417 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2418 | { | |
8687b63a | 2419 | __be32 *p; |
1da177e4 LT |
2420 | int status = 0; |
2421 | ||
2422 | *res = 0; | |
2423 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2424 | return -EIO; | |
2425 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2426 | READ_BUF(8); | |
2427 | READ64(*res); | |
2428 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2429 | } | |
3110ff80 | 2430 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2431 | return status; |
2432 | } | |
2433 | ||
7aaa0b3b MN |
2434 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2435 | { | |
464ad6b1 | 2436 | u32 n; |
8687b63a | 2437 | __be32 *p; |
7aaa0b3b MN |
2438 | int status = 0; |
2439 | ||
2440 | READ_BUF(4); | |
2441 | READ32(n); | |
33a43f28 AA |
2442 | if (n == 0) |
2443 | goto root_path; | |
7aaa0b3b MN |
2444 | dprintk("path "); |
2445 | path->ncomponents = 0; | |
2446 | while (path->ncomponents < n) { | |
2447 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2448 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2449 | if (unlikely(status != 0)) | |
2450 | goto out_eio; | |
2451 | if (path->ncomponents != n) | |
2452 | dprintk("/"); | |
2453 | dprintk("%s", component->data); | |
2454 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2455 | path->ncomponents++; | |
2456 | else { | |
2457 | dprintk("cannot parse %d components in path\n", n); | |
2458 | goto out_eio; | |
2459 | } | |
2460 | } | |
2461 | out: | |
2462 | dprintk("\n"); | |
2463 | return status; | |
33a43f28 AA |
2464 | root_path: |
2465 | /* a root pathname is sent as a zero component4 */ | |
2466 | path->ncomponents = 1; | |
2467 | path->components[0].len=0; | |
2468 | path->components[0].data=NULL; | |
2469 | dprintk("path /\n"); | |
2470 | goto out; | |
7aaa0b3b MN |
2471 | out_eio: |
2472 | dprintk(" status %d", status); | |
2473 | status = -EIO; | |
2474 | goto out; | |
2475 | } | |
2476 | ||
2477 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2478 | { |
2479 | int n; | |
8687b63a | 2480 | __be32 *p; |
683b57b4 TM |
2481 | int status = -EIO; |
2482 | ||
2483 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2484 | goto out; | |
2485 | status = 0; | |
2486 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2487 | goto out; | |
3110ff80 | 2488 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2489 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2490 | if (unlikely(status != 0)) |
2491 | goto out; | |
2492 | READ_BUF(4); | |
2493 | READ32(n); | |
2494 | if (n <= 0) | |
2495 | goto out_eio; | |
2496 | res->nlocations = 0; | |
2497 | while (res->nlocations < n) { | |
464ad6b1 | 2498 | u32 m; |
7aaa0b3b | 2499 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2500 | |
7aaa0b3b MN |
2501 | READ_BUF(4); |
2502 | READ32(m); | |
7aaa0b3b MN |
2503 | |
2504 | loc->nservers = 0; | |
3110ff80 | 2505 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2506 | while (loc->nservers < m) { |
2507 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2508 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2509 | if (unlikely(status != 0)) | |
2510 | goto out_eio; | |
2511 | dprintk("%s ", server->data); | |
2512 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2513 | loc->nservers++; | |
2514 | else { | |
464ad6b1 CL |
2515 | unsigned int i; |
2516 | dprintk("%s: using first %u of %u servers " | |
2517 | "returned for location %u\n", | |
3110ff80 | 2518 | __func__, |
464ad6b1 CL |
2519 | NFS4_FS_LOCATION_MAXSERVERS, |
2520 | m, res->nlocations); | |
7aaa0b3b | 2521 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2522 | unsigned int len; |
7aaa0b3b MN |
2523 | char *data; |
2524 | status = decode_opaque_inline(xdr, &len, &data); | |
2525 | if (unlikely(status != 0)) | |
2526 | goto out_eio; | |
2527 | } | |
2528 | } | |
2529 | } | |
2530 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2531 | if (unlikely(status != 0)) |
2532 | goto out_eio; | |
7aaa0b3b | 2533 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2534 | res->nlocations++; |
2535 | } | |
409924e4 TM |
2536 | if (res->nlocations != 0) |
2537 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2538 | out: |
3110ff80 | 2539 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2540 | return status; |
2541 | out_eio: | |
2542 | status = -EIO; | |
2543 | goto out; | |
2544 | } | |
2545 | ||
1da177e4 LT |
2546 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2547 | { | |
8687b63a | 2548 | __be32 *p; |
1da177e4 LT |
2549 | int status = 0; |
2550 | ||
2551 | *res = 0; | |
2552 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2553 | return -EIO; | |
2554 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2555 | READ_BUF(8); | |
2556 | READ64(*res); | |
2557 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2558 | } | |
3110ff80 | 2559 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2560 | return status; |
2561 | } | |
2562 | ||
2563 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2564 | { | |
8687b63a | 2565 | __be32 *p; |
1da177e4 LT |
2566 | int status = 0; |
2567 | ||
2568 | *maxlink = 1; | |
2569 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2570 | return -EIO; | |
2571 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2572 | READ_BUF(4); | |
2573 | READ32(*maxlink); | |
2574 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2575 | } | |
3110ff80 | 2576 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2577 | return status; |
2578 | } | |
2579 | ||
2580 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2581 | { | |
8687b63a | 2582 | __be32 *p; |
1da177e4 LT |
2583 | int status = 0; |
2584 | ||
2585 | *maxname = 1024; | |
2586 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2587 | return -EIO; | |
2588 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2589 | READ_BUF(4); | |
2590 | READ32(*maxname); | |
2591 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2592 | } | |
3110ff80 | 2593 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2594 | return status; |
2595 | } | |
2596 | ||
2597 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2598 | { | |
8687b63a | 2599 | __be32 *p; |
1da177e4 LT |
2600 | int status = 0; |
2601 | ||
2602 | *res = 1024; | |
2603 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2604 | return -EIO; | |
2605 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2606 | uint64_t maxread; | |
2607 | READ_BUF(8); | |
2608 | READ64(maxread); | |
2609 | if (maxread > 0x7FFFFFFF) | |
2610 | maxread = 0x7FFFFFFF; | |
2611 | *res = (uint32_t)maxread; | |
2612 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2613 | } | |
3110ff80 | 2614 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2615 | return status; |
2616 | } | |
2617 | ||
2618 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2619 | { | |
8687b63a | 2620 | __be32 *p; |
1da177e4 LT |
2621 | int status = 0; |
2622 | ||
2623 | *res = 1024; | |
2624 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2625 | return -EIO; | |
2626 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2627 | uint64_t maxwrite; | |
2628 | READ_BUF(8); | |
2629 | READ64(maxwrite); | |
2630 | if (maxwrite > 0x7FFFFFFF) | |
2631 | maxwrite = 0x7FFFFFFF; | |
2632 | *res = (uint32_t)maxwrite; | |
2633 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2634 | } | |
3110ff80 | 2635 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2636 | return status; |
2637 | } | |
2638 | ||
bca79478 | 2639 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 2640 | { |
bca79478 | 2641 | uint32_t tmp; |
8687b63a | 2642 | __be32 *p; |
409924e4 | 2643 | int ret = 0; |
1da177e4 LT |
2644 | |
2645 | *mode = 0; | |
2646 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2647 | return -EIO; | |
2648 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2649 | READ_BUF(4); | |
bca79478 TM |
2650 | READ32(tmp); |
2651 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 2652 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 2653 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 2654 | } |
3110ff80 | 2655 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 2656 | return ret; |
1da177e4 LT |
2657 | } |
2658 | ||
2659 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2660 | { | |
8687b63a | 2661 | __be32 *p; |
409924e4 | 2662 | int ret = 0; |
1da177e4 LT |
2663 | |
2664 | *nlink = 1; | |
2665 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2666 | return -EIO; | |
2667 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2668 | READ_BUF(4); | |
2669 | READ32(*nlink); | |
2670 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 2671 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 2672 | } |
3110ff80 | 2673 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 2674 | return ret; |
1da177e4 LT |
2675 | } |
2676 | ||
2e42c3e2 | 2677 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2678 | { |
8687b63a AV |
2679 | uint32_t len; |
2680 | __be32 *p; | |
409924e4 | 2681 | int ret = 0; |
1da177e4 LT |
2682 | |
2683 | *uid = -2; | |
2684 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2685 | return -EIO; | |
2686 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2687 | READ_BUF(4); | |
2688 | READ32(len); | |
2689 | READ_BUF(len); | |
2690 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2691 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
2692 | ret = NFS_ATTR_FATTR_OWNER; | |
2693 | else | |
1da177e4 | 2694 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 2695 | __func__); |
1da177e4 | 2696 | } else |
fe82a183 | 2697 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2698 | __func__, len); |
1da177e4 LT |
2699 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
2700 | } | |
3110ff80 | 2701 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 2702 | return ret; |
1da177e4 LT |
2703 | } |
2704 | ||
2e42c3e2 | 2705 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2706 | { |
8687b63a AV |
2707 | uint32_t len; |
2708 | __be32 *p; | |
409924e4 | 2709 | int ret = 0; |
1da177e4 LT |
2710 | |
2711 | *gid = -2; | |
2712 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2713 | return -EIO; | |
2714 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2715 | READ_BUF(4); | |
2716 | READ32(len); | |
2717 | READ_BUF(len); | |
2718 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2719 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
2720 | ret = NFS_ATTR_FATTR_GROUP; | |
2721 | else | |
1da177e4 | 2722 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 2723 | __func__); |
1da177e4 | 2724 | } else |
fe82a183 | 2725 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2726 | __func__, len); |
1da177e4 LT |
2727 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
2728 | } | |
3110ff80 | 2729 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 2730 | return ret; |
1da177e4 LT |
2731 | } |
2732 | ||
2733 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2734 | { | |
8687b63a AV |
2735 | uint32_t major = 0, minor = 0; |
2736 | __be32 *p; | |
409924e4 | 2737 | int ret = 0; |
1da177e4 LT |
2738 | |
2739 | *rdev = MKDEV(0,0); | |
2740 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2741 | return -EIO; | |
2742 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2743 | dev_t tmp; | |
2744 | ||
2745 | READ_BUF(8); | |
2746 | READ32(major); | |
2747 | READ32(minor); | |
2748 | tmp = MKDEV(major, minor); | |
2749 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2750 | *rdev = tmp; | |
2751 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 2752 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 2753 | } |
3110ff80 | 2754 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 2755 | return ret; |
1da177e4 LT |
2756 | } |
2757 | ||
2758 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2759 | { | |
8687b63a | 2760 | __be32 *p; |
1da177e4 LT |
2761 | int status = 0; |
2762 | ||
2763 | *res = 0; | |
2764 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2765 | return -EIO; | |
2766 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2767 | READ_BUF(8); | |
2768 | READ64(*res); | |
2769 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2770 | } | |
3110ff80 | 2771 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2772 | return status; |
2773 | } | |
2774 | ||
2775 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2776 | { | |
8687b63a | 2777 | __be32 *p; |
1da177e4 LT |
2778 | int status = 0; |
2779 | ||
2780 | *res = 0; | |
2781 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2782 | return -EIO; | |
2783 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2784 | READ_BUF(8); | |
2785 | READ64(*res); | |
2786 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2787 | } | |
3110ff80 | 2788 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2789 | return status; |
2790 | } | |
2791 | ||
2792 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2793 | { | |
8687b63a | 2794 | __be32 *p; |
1da177e4 LT |
2795 | int status = 0; |
2796 | ||
2797 | *res = 0; | |
2798 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2799 | return -EIO; | |
2800 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2801 | READ_BUF(8); | |
2802 | READ64(*res); | |
2803 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2804 | } | |
3110ff80 | 2805 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2806 | return status; |
2807 | } | |
2808 | ||
2809 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2810 | { | |
8687b63a | 2811 | __be32 *p; |
409924e4 | 2812 | int ret = 0; |
1da177e4 LT |
2813 | |
2814 | *used = 0; | |
2815 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2816 | return -EIO; | |
2817 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2818 | READ_BUF(8); | |
2819 | READ64(*used); | |
2820 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 2821 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 2822 | } |
3110ff80 | 2823 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 2824 | (unsigned long long)*used); |
409924e4 | 2825 | return ret; |
1da177e4 LT |
2826 | } |
2827 | ||
2828 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2829 | { | |
8687b63a | 2830 | __be32 *p; |
1da177e4 LT |
2831 | uint64_t sec; |
2832 | uint32_t nsec; | |
2833 | ||
2834 | READ_BUF(12); | |
2835 | READ64(sec); | |
2836 | READ32(nsec); | |
2837 | time->tv_sec = (time_t)sec; | |
2838 | time->tv_nsec = (long)nsec; | |
2839 | return 0; | |
2840 | } | |
2841 | ||
2842 | static int decode_attr_time_access(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_ACCESS - 1U))) | |
2849 | return -EIO; | |
2850 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2851 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2852 | if (status == 0) |
2853 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
2854 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
2855 | } | |
3110ff80 | 2856 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2857 | return status; |
2858 | } | |
2859 | ||
2860 | static int decode_attr_time_metadata(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_METADATA - 1U))) | |
2867 | return -EIO; | |
2868 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
2869 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2870 | if (status == 0) |
2871 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
2872 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
2873 | } | |
3110ff80 | 2874 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2875 | return status; |
2876 | } | |
2877 | ||
2878 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2879 | { | |
2880 | int status = 0; | |
2881 | ||
2882 | time->tv_sec = 0; | |
2883 | time->tv_nsec = 0; | |
2884 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
2885 | return -EIO; | |
2886 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
2887 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2888 | if (status == 0) |
2889 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
2890 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
2891 | } | |
3110ff80 | 2892 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2893 | return status; |
2894 | } | |
2895 | ||
8687b63a | 2896 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
2897 | { |
2898 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
2899 | unsigned int nwords = xdr->p - savep; | |
2900 | ||
2901 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
2902 | dprintk("%s: server returned incorrect attribute length: " |
2903 | "%u %c %u\n", | |
3110ff80 | 2904 | __func__, |
1da177e4 LT |
2905 | attrwords << 2, |
2906 | (attrwords < nwords) ? '<' : '>', | |
2907 | nwords << 2); | |
2908 | return -EIO; | |
2909 | } | |
2910 | return 0; | |
2911 | } | |
2912 | ||
2913 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2914 | { | |
8687b63a | 2915 | __be32 *p; |
1da177e4 LT |
2916 | |
2917 | READ_BUF(20); | |
2918 | READ32(cinfo->atomic); | |
2919 | READ64(cinfo->before); | |
2920 | READ64(cinfo->after); | |
2921 | return 0; | |
2922 | } | |
2923 | ||
2924 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
2925 | { | |
8687b63a | 2926 | __be32 *p; |
1da177e4 LT |
2927 | uint32_t supp, acc; |
2928 | int status; | |
2929 | ||
2930 | status = decode_op_hdr(xdr, OP_ACCESS); | |
2931 | if (status) | |
2932 | return status; | |
2933 | READ_BUF(8); | |
2934 | READ32(supp); | |
2935 | READ32(acc); | |
2936 | access->supported = supp; | |
2937 | access->access = acc; | |
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
2942 | { | |
8687b63a | 2943 | __be32 *p; |
1da177e4 LT |
2944 | int status; |
2945 | ||
2946 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
2947 | if (status != -EIO) |
2948 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
2949 | if (status) |
2950 | return status; | |
8ae20abd TM |
2951 | READ_BUF(NFS4_STATEID_SIZE); |
2952 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
2953 | return 0; |
2954 | } | |
2955 | ||
2956 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
2957 | { | |
8687b63a | 2958 | __be32 *p; |
1da177e4 LT |
2959 | int status; |
2960 | ||
2961 | status = decode_op_hdr(xdr, OP_COMMIT); | |
2962 | if (status) | |
2963 | return status; | |
2964 | READ_BUF(8); | |
2965 | COPYMEM(res->verf->verifier, 8); | |
2966 | return 0; | |
2967 | } | |
2968 | ||
2969 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2970 | { | |
8687b63a | 2971 | __be32 *p; |
1da177e4 LT |
2972 | uint32_t bmlen; |
2973 | int status; | |
2974 | ||
2975 | status = decode_op_hdr(xdr, OP_CREATE); | |
2976 | if (status) | |
2977 | return status; | |
2978 | if ((status = decode_change_info(xdr, cinfo))) | |
2979 | return status; | |
2980 | READ_BUF(4); | |
2981 | READ32(bmlen); | |
2982 | READ_BUF(bmlen << 2); | |
2983 | return 0; | |
2984 | } | |
2985 | ||
2986 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
2987 | { | |
8687b63a | 2988 | __be32 *savep; |
6c0195a4 | 2989 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
2990 | int status; |
2991 | ||
2992 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
2993 | goto xdr_error; | |
2994 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2995 | goto xdr_error; | |
2996 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2997 | goto xdr_error; | |
2998 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
2999 | goto xdr_error; | |
3000 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3001 | goto xdr_error; | |
3002 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3003 | goto xdr_error; | |
3004 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3005 | goto xdr_error; | |
3006 | status = verify_attr_len(xdr, savep, attrlen); | |
3007 | xdr_error: | |
3110ff80 | 3008 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3009 | return status; |
3010 | } | |
6c0195a4 | 3011 | |
1da177e4 LT |
3012 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3013 | { | |
8687b63a | 3014 | __be32 *savep; |
6c0195a4 | 3015 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3016 | int status; |
6c0195a4 | 3017 | |
1da177e4 LT |
3018 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3019 | goto xdr_error; | |
3020 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3021 | goto xdr_error; | |
3022 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3023 | goto xdr_error; | |
3024 | ||
3025 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3026 | goto xdr_error; | |
3027 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3028 | goto xdr_error; | |
3029 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3030 | goto xdr_error; | |
3031 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3032 | goto xdr_error; | |
3033 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3034 | goto xdr_error; | |
3035 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3036 | goto xdr_error; | |
3037 | ||
3038 | status = verify_attr_len(xdr, savep, attrlen); | |
3039 | xdr_error: | |
3110ff80 | 3040 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3041 | return status; |
3042 | } | |
3043 | ||
3044 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3045 | { | |
8687b63a | 3046 | __be32 *savep; |
6c0195a4 | 3047 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3048 | int status; |
6c0195a4 | 3049 | |
1da177e4 LT |
3050 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3051 | goto xdr_error; | |
3052 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3053 | goto xdr_error; | |
3054 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3055 | goto xdr_error; | |
3056 | ||
3057 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3058 | goto xdr_error; | |
3059 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3060 | goto xdr_error; | |
3061 | ||
3062 | status = verify_attr_len(xdr, savep, attrlen); | |
3063 | xdr_error: | |
3110ff80 | 3064 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3065 | return status; |
3066 | } | |
3067 | ||
3068 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3069 | { | |
8687b63a | 3070 | __be32 *savep; |
1da177e4 LT |
3071 | uint32_t attrlen, |
3072 | bitmap[2] = {0}, | |
3073 | type; | |
bca79478 TM |
3074 | int status; |
3075 | umode_t fmode = 0; | |
99baf625 | 3076 | uint64_t fileid; |
1da177e4 | 3077 | |
f26c7a78 TM |
3078 | status = decode_op_hdr(xdr, OP_GETATTR); |
3079 | if (status < 0) | |
1da177e4 | 3080 | goto xdr_error; |
f26c7a78 TM |
3081 | |
3082 | status = decode_attr_bitmap(xdr, bitmap); | |
3083 | if (status < 0) | |
1da177e4 LT |
3084 | goto xdr_error; |
3085 | ||
f26c7a78 TM |
3086 | status = decode_attr_length(xdr, &attrlen, &savep); |
3087 | if (status < 0) | |
1da177e4 LT |
3088 | goto xdr_error; |
3089 | ||
3090 | ||
f26c7a78 TM |
3091 | status = decode_attr_type(xdr, bitmap, &type); |
3092 | if (status < 0) | |
1da177e4 | 3093 | goto xdr_error; |
409924e4 TM |
3094 | fattr->mode = 0; |
3095 | if (status != 0) { | |
3096 | fattr->mode |= nfs_type2fmt[type]; | |
3097 | fattr->valid |= status; | |
3098 | } | |
1da177e4 | 3099 | |
f26c7a78 TM |
3100 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3101 | if (status < 0) | |
1da177e4 | 3102 | goto xdr_error; |
409924e4 | 3103 | fattr->valid |= status; |
f26c7a78 TM |
3104 | |
3105 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3106 | if (status < 0) | |
1da177e4 | 3107 | goto xdr_error; |
409924e4 | 3108 | fattr->valid |= status; |
f26c7a78 TM |
3109 | |
3110 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3111 | if (status < 0) | |
1da177e4 | 3112 | goto xdr_error; |
409924e4 | 3113 | fattr->valid |= status; |
f26c7a78 TM |
3114 | |
3115 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3116 | if (status < 0) | |
1da177e4 | 3117 | goto xdr_error; |
409924e4 | 3118 | fattr->valid |= status; |
f26c7a78 TM |
3119 | |
3120 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3121 | struct nfs4_fs_locations, |
f26c7a78 TM |
3122 | fattr)); |
3123 | if (status < 0) | |
683b57b4 | 3124 | goto xdr_error; |
409924e4 | 3125 | fattr->valid |= status; |
f26c7a78 TM |
3126 | |
3127 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3128 | if (status < 0) | |
1da177e4 | 3129 | goto xdr_error; |
409924e4 TM |
3130 | if (status != 0) { |
3131 | fattr->mode |= fmode; | |
3132 | fattr->valid |= status; | |
3133 | } | |
f26c7a78 TM |
3134 | |
3135 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3136 | if (status < 0) | |
1da177e4 | 3137 | goto xdr_error; |
409924e4 | 3138 | fattr->valid |= status; |
f26c7a78 TM |
3139 | |
3140 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3141 | if (status < 0) | |
1da177e4 | 3142 | goto xdr_error; |
409924e4 | 3143 | fattr->valid |= status; |
f26c7a78 TM |
3144 | |
3145 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3146 | if (status < 0) | |
1da177e4 | 3147 | goto xdr_error; |
409924e4 | 3148 | fattr->valid |= status; |
f26c7a78 TM |
3149 | |
3150 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3151 | if (status < 0) | |
1da177e4 | 3152 | goto xdr_error; |
409924e4 | 3153 | fattr->valid |= status; |
f26c7a78 TM |
3154 | |
3155 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3156 | if (status < 0) | |
1da177e4 | 3157 | goto xdr_error; |
409924e4 | 3158 | fattr->valid |= status; |
f26c7a78 TM |
3159 | |
3160 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3161 | if (status < 0) | |
1da177e4 | 3162 | goto xdr_error; |
409924e4 | 3163 | fattr->valid |= status; |
f26c7a78 TM |
3164 | |
3165 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3166 | if (status < 0) | |
1da177e4 | 3167 | goto xdr_error; |
409924e4 | 3168 | fattr->valid |= status; |
f26c7a78 TM |
3169 | |
3170 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3171 | if (status < 0) | |
1da177e4 | 3172 | goto xdr_error; |
409924e4 | 3173 | fattr->valid |= status; |
f26c7a78 TM |
3174 | |
3175 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3176 | if (status < 0) | |
99baf625 | 3177 | goto xdr_error; |
409924e4 | 3178 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3179 | fattr->fileid = fileid; |
409924e4 TM |
3180 | fattr->valid |= status; |
3181 | } | |
f26c7a78 TM |
3182 | |
3183 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3184 | xdr_error: |
3110ff80 | 3185 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3186 | return status; |
3187 | } | |
3188 | ||
3189 | ||
3190 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3191 | { | |
8687b63a | 3192 | __be32 *savep; |
1da177e4 LT |
3193 | uint32_t attrlen, bitmap[2]; |
3194 | int status; | |
3195 | ||
3196 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3197 | goto xdr_error; | |
3198 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3199 | goto xdr_error; | |
3200 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3201 | goto xdr_error; | |
3202 | ||
3203 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3204 | ||
3205 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3206 | goto xdr_error; | |
3207 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3208 | goto xdr_error; | |
3209 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3210 | goto xdr_error; | |
3211 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3212 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3213 | goto xdr_error; | |
3214 | fsinfo->wtpref = fsinfo->wtmax; | |
3215 | ||
3216 | status = verify_attr_len(xdr, savep, attrlen); | |
3217 | xdr_error: | |
3110ff80 | 3218 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3219 | return status; |
3220 | } | |
3221 | ||
3222 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3223 | { | |
8687b63a | 3224 | __be32 *p; |
1da177e4 LT |
3225 | uint32_t len; |
3226 | int status; | |
3227 | ||
9936781d TM |
3228 | /* Zero handle first to allow comparisons */ |
3229 | memset(fh, 0, sizeof(*fh)); | |
3230 | ||
1da177e4 LT |
3231 | status = decode_op_hdr(xdr, OP_GETFH); |
3232 | if (status) | |
3233 | return status; | |
1da177e4 LT |
3234 | |
3235 | READ_BUF(4); | |
3236 | READ32(len); | |
3237 | if (len > NFS4_FHSIZE) | |
3238 | return -EIO; | |
3239 | fh->size = len; | |
3240 | READ_BUF(len); | |
3241 | COPYMEM(fh->data, len); | |
3242 | return 0; | |
3243 | } | |
3244 | ||
3245 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3246 | { | |
3247 | int status; | |
6c0195a4 | 3248 | |
1da177e4 LT |
3249 | status = decode_op_hdr(xdr, OP_LINK); |
3250 | if (status) | |
3251 | return status; | |
3252 | return decode_change_info(xdr, cinfo); | |
3253 | } | |
3254 | ||
3255 | /* | |
3256 | * We create the owner, so we know a proper owner.id length is 4. | |
3257 | */ | |
911d1aaf | 3258 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3259 | { |
911d1aaf | 3260 | uint64_t offset, length, clientid; |
8687b63a | 3261 | __be32 *p; |
911d1aaf | 3262 | uint32_t namelen, type; |
1da177e4 LT |
3263 | |
3264 | READ_BUF(32); | |
911d1aaf TM |
3265 | READ64(offset); |
3266 | READ64(length); | |
3267 | READ32(type); | |
3268 | if (fl != NULL) { | |
3269 | fl->fl_start = (loff_t)offset; | |
3270 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3271 | if (length == ~(uint64_t)0) | |
3272 | fl->fl_end = OFFSET_MAX; | |
3273 | fl->fl_type = F_WRLCK; | |
3274 | if (type & 1) | |
3275 | fl->fl_type = F_RDLCK; | |
3276 | fl->fl_pid = 0; | |
3277 | } | |
3278 | READ64(clientid); | |
1da177e4 LT |
3279 | READ32(namelen); |
3280 | READ_BUF(namelen); | |
1da177e4 LT |
3281 | return -NFS4ERR_DENIED; |
3282 | } | |
3283 | ||
911d1aaf | 3284 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3285 | { |
8687b63a | 3286 | __be32 *p; |
1da177e4 LT |
3287 | int status; |
3288 | ||
3289 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3290 | if (status == -EIO) |
3291 | goto out; | |
1da177e4 | 3292 | if (status == 0) { |
8ae20abd TM |
3293 | READ_BUF(NFS4_STATEID_SIZE); |
3294 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3295 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3296 | status = decode_lock_denied(xdr, NULL); |
3297 | if (res->open_seqid != NULL) | |
3298 | nfs_increment_open_seqid(status, res->open_seqid); | |
3299 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3300 | out: | |
1da177e4 LT |
3301 | return status; |
3302 | } | |
3303 | ||
911d1aaf | 3304 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3305 | { |
3306 | int status; | |
3307 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3308 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3309 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3310 | return status; |
3311 | } | |
3312 | ||
911d1aaf | 3313 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3314 | { |
8687b63a | 3315 | __be32 *p; |
1da177e4 LT |
3316 | int status; |
3317 | ||
3318 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3319 | if (status != -EIO) |
3320 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3321 | if (status == 0) { |
8ae20abd TM |
3322 | READ_BUF(NFS4_STATEID_SIZE); |
3323 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3324 | } |
3325 | return status; | |
3326 | } | |
3327 | ||
3328 | static int decode_lookup(struct xdr_stream *xdr) | |
3329 | { | |
3330 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3331 | } | |
3332 | ||
3333 | /* This is too sick! */ | |
3334 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3335 | { | |
05d564fe | 3336 | __be32 *p; |
1da177e4 LT |
3337 | uint32_t limit_type, nblocks, blocksize; |
3338 | ||
3339 | READ_BUF(12); | |
3340 | READ32(limit_type); | |
3341 | switch (limit_type) { | |
05d564fe AA |
3342 | case 1: |
3343 | READ64(*maxsize); | |
3344 | break; | |
3345 | case 2: | |
3346 | READ32(nblocks); | |
3347 | READ32(blocksize); | |
3348 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3349 | } |
3350 | return 0; | |
3351 | } | |
3352 | ||
3353 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3354 | { | |
05d564fe AA |
3355 | __be32 *p; |
3356 | uint32_t delegation_type; | |
1da177e4 LT |
3357 | |
3358 | READ_BUF(4); | |
3359 | READ32(delegation_type); | |
3360 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3361 | res->delegation_type = 0; | |
3362 | return 0; | |
3363 | } | |
8ae20abd TM |
3364 | READ_BUF(NFS4_STATEID_SIZE+4); |
3365 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3366 | READ32(res->do_recall); |
05d564fe | 3367 | |
1da177e4 | 3368 | switch (delegation_type) { |
05d564fe AA |
3369 | case NFS4_OPEN_DELEGATE_READ: |
3370 | res->delegation_type = FMODE_READ; | |
3371 | break; | |
3372 | case NFS4_OPEN_DELEGATE_WRITE: | |
3373 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3374 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3375 | return -EIO; |
3376 | } | |
7539bbab | 3377 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3378 | } |
3379 | ||
3380 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3381 | { | |
05d564fe | 3382 | __be32 *p; |
aa53ed54 | 3383 | uint32_t savewords, bmlen, i; |
05d564fe | 3384 | int status; |
1da177e4 | 3385 | |
05d564fe | 3386 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3387 | if (status != -EIO) |
3388 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3389 | if (status) |
3390 | return status; | |
3391 | READ_BUF(NFS4_STATEID_SIZE); | |
3392 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3393 | |
05d564fe | 3394 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3395 | |
05d564fe AA |
3396 | READ_BUF(8); |
3397 | READ32(res->rflags); | |
3398 | READ32(bmlen); | |
3399 | if (bmlen > 10) | |
3400 | goto xdr_error; | |
1da177e4 | 3401 | |
05d564fe | 3402 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3403 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3404 | for (i = 0; i < savewords; ++i) | |
3405 | READ32(res->attrset[i]); | |
3406 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3407 | res->attrset[i] = 0; | |
3408 | ||
1da177e4 LT |
3409 | return decode_delegation(xdr, res); |
3410 | xdr_error: | |
3110ff80 | 3411 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3412 | return -EIO; |
3413 | } | |
3414 | ||
3415 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3416 | { | |
05d564fe | 3417 | __be32 *p; |
1da177e4 LT |
3418 | int status; |
3419 | ||
05d564fe | 3420 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3421 | if (status != -EIO) |
3422 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3423 | if (status) |
3424 | return status; | |
3425 | READ_BUF(NFS4_STATEID_SIZE); | |
3426 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3427 | return 0; | |
1da177e4 LT |
3428 | } |
3429 | ||
3430 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3431 | { | |
8687b63a | 3432 | __be32 *p; |
1da177e4 LT |
3433 | int status; |
3434 | ||
3435 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3436 | if (status != -EIO) |
3437 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3438 | if (status) |
3439 | return status; | |
8ae20abd TM |
3440 | READ_BUF(NFS4_STATEID_SIZE); |
3441 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3442 | return 0; |
3443 | } | |
3444 | ||
3445 | static int decode_putfh(struct xdr_stream *xdr) | |
3446 | { | |
3447 | return decode_op_hdr(xdr, OP_PUTFH); | |
3448 | } | |
3449 | ||
3450 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3451 | { | |
3452 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3453 | } | |
3454 | ||
3455 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3456 | { | |
3457 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3458 | __be32 *p; |
1da177e4 LT |
3459 | uint32_t count, eof, recvd, hdrlen; |
3460 | int status; | |
3461 | ||
3462 | status = decode_op_hdr(xdr, OP_READ); | |
3463 | if (status) | |
3464 | return status; | |
3465 | READ_BUF(8); | |
3466 | READ32(eof); | |
3467 | READ32(count); | |
3468 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3469 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3470 | if (count > recvd) { | |
fe82a183 | 3471 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3472 | "count %u > recvd %u\n", count, recvd); |
3473 | count = recvd; | |
3474 | eof = 0; | |
3475 | } | |
3476 | xdr_read_pages(xdr, count); | |
3477 | res->eof = eof; | |
3478 | res->count = count; | |
3479 | return 0; | |
3480 | } | |
3481 | ||
3482 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3483 | { | |
3484 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3485 | struct page *page = *rcvbuf->pages; | |
3486 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3487 | size_t hdrlen; |
3488 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3489 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3490 | unsigned int nr = 0; |
bcecff77 | 3491 | int status; |
1da177e4 LT |
3492 | |
3493 | status = decode_op_hdr(xdr, OP_READDIR); | |
3494 | if (status) | |
3495 | return status; | |
3496 | READ_BUF(8); | |
3497 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3498 | dprintk("%s: verifier = %08x:%08x\n", |
3499 | __func__, | |
eadf4598 TM |
3500 | ((u32 *)readdir->verifier.data)[0], |
3501 | ((u32 *)readdir->verifier.data)[1]); | |
3502 | ||
1da177e4 LT |
3503 | |
3504 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3505 | recvd = rcvbuf->len - hdrlen; | |
3506 | if (pglen > recvd) | |
3507 | pglen = recvd; | |
3508 | xdr_read_pages(xdr, pglen); | |
3509 | ||
3510 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3511 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3512 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3513 | entry = p; |
7bda2cdf JL |
3514 | |
3515 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3516 | if ((entry + 1) > end) | |
3517 | goto short_pkt; | |
3518 | ||
3519 | for (; *p++; nr++) { | |
bcecff77 | 3520 | u32 len, attrlen, xlen; |
e8896495 | 3521 | if (end - p < 3) |
1da177e4 | 3522 | goto short_pkt; |
eadf4598 | 3523 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3524 | p += 2; /* cookie */ |
3525 | len = ntohl(*p++); /* filename length */ | |
3526 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3527 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3528 | len); | |
1da177e4 LT |
3529 | goto err_unmap; |
3530 | } | |
e8896495 DH |
3531 | xlen = XDR_QUADLEN(len); |
3532 | if (end - p < xlen + 1) | |
1da177e4 | 3533 | goto short_pkt; |
e8896495 DH |
3534 | dprintk("filename = %*s\n", len, (char *)p); |
3535 | p += xlen; | |
1da177e4 | 3536 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3537 | if (end - p < len + 1) |
1da177e4 | 3538 | goto short_pkt; |
e8896495 | 3539 | p += len; |
1da177e4 | 3540 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3541 | if (end - p < attrlen + 2) |
1da177e4 | 3542 | goto short_pkt; |
e8896495 | 3543 | p += attrlen; /* attributes */ |
1da177e4 LT |
3544 | entry = p; |
3545 | } | |
7bda2cdf JL |
3546 | /* |
3547 | * Apparently some server sends responses that are a valid size, but | |
3548 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3549 | * those, just set the EOF marker. | |
3550 | */ | |
3551 | if (!nr && entry[1] == 0) { | |
3552 | dprintk("NFS: readdir reply truncated!\n"); | |
3553 | entry[1] = 1; | |
3554 | } | |
6c0195a4 | 3555 | out: |
1da177e4 LT |
3556 | kunmap_atomic(kaddr, KM_USER0); |
3557 | return 0; | |
3558 | short_pkt: | |
7bda2cdf JL |
3559 | /* |
3560 | * When we get a short packet there are 2 possibilities. We can | |
3561 | * return an error, or fix up the response to look like a valid | |
3562 | * response and return what we have so far. If there are no | |
3563 | * entries and the packet was short, then return -EIO. If there | |
3564 | * are valid entries in the response, return them and pretend that | |
3565 | * the call was successful, but incomplete. The caller can retry the | |
3566 | * readdir starting at the last cookie. | |
3567 | */ | |
3110ff80 | 3568 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3569 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3570 | if (nr) |
3571 | goto out; | |
1da177e4 LT |
3572 | err_unmap: |
3573 | kunmap_atomic(kaddr, KM_USER0); | |
3574 | return -errno_NFSERR_IO; | |
3575 | } | |
3576 | ||
3577 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3578 | { | |
3579 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3580 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3581 | size_t hdrlen; |
3582 | u32 len, recvd; | |
8687b63a | 3583 | __be32 *p; |
1da177e4 LT |
3584 | char *kaddr; |
3585 | int status; | |
3586 | ||
3587 | status = decode_op_hdr(xdr, OP_READLINK); | |
3588 | if (status) | |
3589 | return status; | |
3590 | ||
3591 | /* Convert length of symlink */ | |
3592 | READ_BUF(4); | |
3593 | READ32(len); | |
3594 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3595 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3596 | return -ENAMETOOLONG; |
3597 | } | |
3598 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3599 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3600 | if (recvd < len) { | |
fe82a183 | 3601 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3602 | "count %u > recvd %u\n", len, recvd); |
3603 | return -EIO; | |
3604 | } | |
3605 | xdr_read_pages(xdr, len); | |
3606 | /* | |
3607 | * The XDR encode routine has set things up so that | |
3608 | * the link text will be copied directly into the | |
3609 | * buffer. We just have to do overflow-checking, | |
3610 | * and and null-terminate the text (the VFS expects | |
3611 | * null-termination). | |
3612 | */ | |
3613 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3614 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3615 | kunmap_atomic(kaddr, KM_USER0); | |
3616 | return 0; | |
3617 | } | |
3618 | ||
3619 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3620 | { | |
3621 | int status; | |
3622 | ||
3623 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3624 | if (status) | |
3625 | goto out; | |
3626 | status = decode_change_info(xdr, cinfo); | |
3627 | out: | |
3628 | return status; | |
3629 | } | |
3630 | ||
3631 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3632 | struct nfs4_change_info *new_cinfo) | |
3633 | { | |
3634 | int status; | |
3635 | ||
3636 | status = decode_op_hdr(xdr, OP_RENAME); | |
3637 | if (status) | |
3638 | goto out; | |
3639 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3640 | goto out; | |
3641 | status = decode_change_info(xdr, new_cinfo); | |
3642 | out: | |
3643 | return status; | |
3644 | } | |
3645 | ||
3646 | static int decode_renew(struct xdr_stream *xdr) | |
3647 | { | |
3648 | return decode_op_hdr(xdr, OP_RENEW); | |
3649 | } | |
3650 | ||
56ae19f3 TM |
3651 | static int |
3652 | decode_restorefh(struct xdr_stream *xdr) | |
3653 | { | |
3654 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3655 | } | |
3656 | ||
029d105e BF |
3657 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3658 | size_t *acl_len) | |
3659 | { | |
8687b63a | 3660 | __be32 *savep; |
029d105e BF |
3661 | uint32_t attrlen, |
3662 | bitmap[2] = {0}; | |
3663 | struct kvec *iov = req->rq_rcv_buf.head; | |
3664 | int status; | |
3665 | ||
3666 | *acl_len = 0; | |
3667 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3668 | goto out; | |
3669 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3670 | goto out; | |
3671 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3672 | goto out; | |
3673 | ||
3674 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3675 | return -EIO; | |
3676 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
3677 | size_t hdrlen; |
3678 | u32 recvd; | |
029d105e BF |
3679 | |
3680 | /* We ignore &savep and don't do consistency checks on | |
3681 | * the attr length. Let userspace figure it out.... */ | |
3682 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3683 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3684 | if (attrlen > recvd) { | |
fe82a183 | 3685 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
3686 | " acl reply: attrlen %u > recvd %u\n", |
3687 | attrlen, recvd); | |
3688 | return -EINVAL; | |
3689 | } | |
c04871e6 | 3690 | xdr_read_pages(xdr, attrlen); |
029d105e | 3691 | *acl_len = attrlen; |
8c233cf9 BF |
3692 | } else |
3693 | status = -EOPNOTSUPP; | |
029d105e BF |
3694 | |
3695 | out: | |
3696 | return status; | |
3697 | } | |
3698 | ||
1da177e4 LT |
3699 | static int |
3700 | decode_savefh(struct xdr_stream *xdr) | |
3701 | { | |
3702 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3703 | } | |
3704 | ||
9e9ecc03 | 3705 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 3706 | { |
8687b63a | 3707 | __be32 *p; |
1da177e4 LT |
3708 | uint32_t bmlen; |
3709 | int status; | |
3710 | ||
1da177e4 LT |
3711 | status = decode_op_hdr(xdr, OP_SETATTR); |
3712 | if (status) | |
3713 | return status; | |
3714 | READ_BUF(4); | |
3715 | READ32(bmlen); | |
3716 | READ_BUF(bmlen << 2); | |
3717 | return 0; | |
3718 | } | |
3719 | ||
adfa6f98 | 3720 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3721 | { |
8687b63a | 3722 | __be32 *p; |
1da177e4 LT |
3723 | uint32_t opnum; |
3724 | int32_t nfserr; | |
3725 | ||
3726 | READ_BUF(8); | |
3727 | READ32(opnum); | |
3728 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 3729 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 3730 | " %d\n", opnum); |
1da177e4 LT |
3731 | return -EIO; |
3732 | } | |
3733 | READ32(nfserr); | |
3734 | if (nfserr == NFS_OK) { | |
8ae20abd | 3735 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3736 | READ64(clp->cl_clientid); |
8ae20abd | 3737 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3738 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3739 | uint32_t len; | |
3740 | ||
3741 | /* skip netid string */ | |
3742 | READ_BUF(4); | |
3743 | READ32(len); | |
3744 | READ_BUF(len); | |
3745 | ||
3746 | /* skip uaddr string */ | |
3747 | READ_BUF(4); | |
3748 | READ32(len); | |
3749 | READ_BUF(len); | |
3750 | return -NFSERR_CLID_INUSE; | |
3751 | } else | |
856dff3d | 3752 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3753 | |
3754 | return 0; | |
3755 | } | |
3756 | ||
3757 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3758 | { | |
3759 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3760 | } | |
3761 | ||
3762 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3763 | { | |
8687b63a | 3764 | __be32 *p; |
1da177e4 LT |
3765 | int status; |
3766 | ||
3767 | status = decode_op_hdr(xdr, OP_WRITE); | |
3768 | if (status) | |
3769 | return status; | |
3770 | ||
3771 | READ_BUF(16); | |
3772 | READ32(res->count); | |
3773 | READ32(res->verf->committed); | |
3774 | COPYMEM(res->verf->verifier, 8); | |
3775 | return 0; | |
3776 | } | |
3777 | ||
3778 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3779 | { | |
3780 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3781 | } | |
3782 | ||
49c2559e BH |
3783 | /* |
3784 | * END OF "GENERIC" DECODE ROUTINES. | |
3785 | */ | |
3786 | ||
1da177e4 LT |
3787 | /* |
3788 | * Decode OPEN_DOWNGRADE response | |
3789 | */ | |
8687b63a | 3790 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 3791 | { |
05d564fe AA |
3792 | struct xdr_stream xdr; |
3793 | struct compound_hdr hdr; | |
3794 | int status; | |
3795 | ||
3796 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3797 | status = decode_compound_hdr(&xdr, &hdr); | |
3798 | if (status) | |
3799 | goto out; | |
3800 | status = decode_putfh(&xdr); | |
3801 | if (status) | |
3802 | goto out; | |
3803 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3804 | if (status != 0) |
3805 | goto out; | |
3806 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 3807 | out: |
05d564fe | 3808 | return status; |
1da177e4 LT |
3809 | } |
3810 | ||
1da177e4 LT |
3811 | /* |
3812 | * Decode ACCESS response | |
3813 | */ | |
8687b63a | 3814 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3815 | { |
3816 | struct xdr_stream xdr; | |
3817 | struct compound_hdr hdr; | |
3818 | int status; | |
6c0195a4 | 3819 | |
1da177e4 LT |
3820 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3821 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3822 | goto out; | |
76b32999 TM |
3823 | status = decode_putfh(&xdr); |
3824 | if (status != 0) | |
3825 | goto out; | |
3826 | status = decode_access(&xdr, res); | |
3827 | if (status != 0) | |
3828 | goto out; | |
3829 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3830 | out: |
3831 | return status; | |
3832 | } | |
3833 | ||
3834 | /* | |
3835 | * Decode LOOKUP response | |
3836 | */ | |
8687b63a | 3837 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3838 | { |
3839 | struct xdr_stream xdr; | |
3840 | struct compound_hdr hdr; | |
3841 | int status; | |
6c0195a4 | 3842 | |
1da177e4 LT |
3843 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3844 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3845 | goto out; | |
3846 | if ((status = decode_putfh(&xdr)) != 0) | |
3847 | goto out; | |
3848 | if ((status = decode_lookup(&xdr)) != 0) | |
3849 | goto out; | |
3850 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3851 | goto out; | |
3852 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3853 | out: | |
3854 | return status; | |
3855 | } | |
3856 | ||
3857 | /* | |
3858 | * Decode LOOKUP_ROOT response | |
3859 | */ | |
8687b63a | 3860 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3861 | { |
3862 | struct xdr_stream xdr; | |
3863 | struct compound_hdr hdr; | |
3864 | int status; | |
6c0195a4 | 3865 | |
1da177e4 LT |
3866 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3867 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3868 | goto out; | |
3869 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3870 | goto out; | |
3871 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3872 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3873 | out: | |
3874 | return status; | |
3875 | } | |
3876 | ||
3877 | /* | |
3878 | * Decode REMOVE response | |
3879 | */ | |
4fdc17b2 | 3880 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
3881 | { |
3882 | struct xdr_stream xdr; | |
3883 | struct compound_hdr hdr; | |
3884 | int status; | |
6c0195a4 | 3885 | |
1da177e4 LT |
3886 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3887 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3888 | goto out; | |
16e42959 TM |
3889 | if ((status = decode_putfh(&xdr)) != 0) |
3890 | goto out; | |
3891 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3892 | goto out; | |
4fdc17b2 | 3893 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
3894 | out: |
3895 | return status; | |
3896 | } | |
3897 | ||
3898 | /* | |
3899 | * Decode RENAME response | |
3900 | */ | |
8687b63a | 3901 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3902 | { |
3903 | struct xdr_stream xdr; | |
3904 | struct compound_hdr hdr; | |
3905 | int status; | |
6c0195a4 | 3906 | |
1da177e4 LT |
3907 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3908 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3909 | goto out; | |
3910 | if ((status = decode_putfh(&xdr)) != 0) | |
3911 | goto out; | |
3912 | if ((status = decode_savefh(&xdr)) != 0) | |
3913 | goto out; | |
3914 | if ((status = decode_putfh(&xdr)) != 0) | |
3915 | goto out; | |
6caf2c82 TM |
3916 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
3917 | goto out; | |
3918 | /* Current FH is target directory */ | |
3919 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
3920 | goto out; | |
3921 | if ((status = decode_restorefh(&xdr)) != 0) | |
3922 | goto out; | |
3923 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
3924 | out: |
3925 | return status; | |
3926 | } | |
3927 | ||
3928 | /* | |
3929 | * Decode LINK response | |
3930 | */ | |
8687b63a | 3931 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
3932 | { |
3933 | struct xdr_stream xdr; | |
3934 | struct compound_hdr hdr; | |
3935 | int status; | |
6c0195a4 | 3936 | |
1da177e4 LT |
3937 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3938 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3939 | goto out; | |
3940 | if ((status = decode_putfh(&xdr)) != 0) | |
3941 | goto out; | |
3942 | if ((status = decode_savefh(&xdr)) != 0) | |
3943 | goto out; | |
3944 | if ((status = decode_putfh(&xdr)) != 0) | |
3945 | goto out; | |
91ba2eee TM |
3946 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
3947 | goto out; | |
3948 | /* | |
3949 | * Note order: OP_LINK leaves the directory as the current | |
3950 | * filehandle. | |
3951 | */ | |
3952 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
3953 | goto out; | |
3954 | if ((status = decode_restorefh(&xdr)) != 0) | |
3955 | goto out; | |
3956 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3957 | out: |
3958 | return status; | |
3959 | } | |
3960 | ||
3961 | /* | |
3962 | * Decode CREATE response | |
3963 | */ | |
8687b63a | 3964 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3965 | { |
3966 | struct xdr_stream xdr; | |
3967 | struct compound_hdr hdr; | |
3968 | int status; | |
6c0195a4 | 3969 | |
1da177e4 LT |
3970 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3971 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3972 | goto out; | |
3973 | if ((status = decode_putfh(&xdr)) != 0) | |
3974 | goto out; | |
56ae19f3 TM |
3975 | if ((status = decode_savefh(&xdr)) != 0) |
3976 | goto out; | |
1da177e4 LT |
3977 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
3978 | goto out; | |
3979 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3980 | goto out; | |
56ae19f3 TM |
3981 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
3982 | goto out; | |
3983 | if ((status = decode_restorefh(&xdr)) != 0) | |
3984 | goto out; | |
3985 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
3986 | out: |
3987 | return status; | |
3988 | } | |
3989 | ||
3990 | /* | |
3991 | * Decode SYMLINK response | |
3992 | */ | |
8687b63a | 3993 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3994 | { |
3995 | return nfs4_xdr_dec_create(rqstp, p, res); | |
3996 | } | |
3997 | ||
3998 | /* | |
3999 | * Decode GETATTR response | |
4000 | */ | |
8687b63a | 4001 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4002 | { |
4003 | struct xdr_stream xdr; | |
4004 | struct compound_hdr hdr; | |
4005 | int status; | |
6c0195a4 | 4006 | |
1da177e4 LT |
4007 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4008 | status = decode_compound_hdr(&xdr, &hdr); | |
4009 | if (status) | |
4010 | goto out; | |
4011 | status = decode_putfh(&xdr); | |
4012 | if (status) | |
4013 | goto out; | |
4014 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4015 | out: | |
4016 | return status; | |
1da177e4 LT |
4017 | } |
4018 | ||
23ec6965 BF |
4019 | /* |
4020 | * Encode an SETACL request | |
4021 | */ | |
4022 | static int | |
8687b63a | 4023 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4024 | { |
05d564fe AA |
4025 | struct xdr_stream xdr; |
4026 | struct compound_hdr hdr = { | |
d017931c | 4027 | .nops = 0, |
05d564fe AA |
4028 | }; |
4029 | int status; | |
4030 | ||
4031 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4032 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 4033 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4034 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4035 | encode_nops(&hdr); |
05d564fe | 4036 | return status; |
23ec6965 | 4037 | } |
05d564fe | 4038 | |
23ec6965 BF |
4039 | /* |
4040 | * Decode SETACL response | |
4041 | */ | |
4042 | static int | |
73c403a9 BH |
4043 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4044 | struct nfs_setaclres *res) | |
23ec6965 BF |
4045 | { |
4046 | struct xdr_stream xdr; | |
4047 | struct compound_hdr hdr; | |
4048 | int status; | |
4049 | ||
4050 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4051 | status = decode_compound_hdr(&xdr, &hdr); | |
4052 | if (status) | |
4053 | goto out; | |
4054 | status = decode_putfh(&xdr); | |
4055 | if (status) | |
4056 | goto out; | |
9e9ecc03 | 4057 | status = decode_setattr(&xdr); |
23ec6965 BF |
4058 | out: |
4059 | return status; | |
4060 | } | |
1da177e4 | 4061 | |
029d105e BF |
4062 | /* |
4063 | * Decode GETACL response | |
4064 | */ | |
4065 | static int | |
663c79b3 BH |
4066 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4067 | struct nfs_getaclres *res) | |
029d105e BF |
4068 | { |
4069 | struct xdr_stream xdr; | |
4070 | struct compound_hdr hdr; | |
4071 | int status; | |
4072 | ||
4073 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4074 | status = decode_compound_hdr(&xdr, &hdr); | |
4075 | if (status) | |
4076 | goto out; | |
4077 | status = decode_putfh(&xdr); | |
4078 | if (status) | |
4079 | goto out; | |
663c79b3 | 4080 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4081 | |
4082 | out: | |
4083 | return status; | |
4084 | } | |
4085 | ||
1da177e4 LT |
4086 | /* |
4087 | * Decode CLOSE response | |
4088 | */ | |
8687b63a | 4089 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4090 | { |
05d564fe AA |
4091 | struct xdr_stream xdr; |
4092 | struct compound_hdr hdr; | |
4093 | int status; | |
4094 | ||
4095 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4096 | status = decode_compound_hdr(&xdr, &hdr); | |
4097 | if (status) | |
4098 | goto out; | |
4099 | status = decode_putfh(&xdr); | |
4100 | if (status) | |
4101 | goto out; | |
4102 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4103 | if (status != 0) |
4104 | goto out; | |
4105 | /* | |
4106 | * Note: Server may do delete on close for this file | |
4107 | * in which case the getattr call will fail with | |
4108 | * an ESTALE error. Shouldn't be a problem, | |
4109 | * though, since fattr->valid will remain unset. | |
4110 | */ | |
4111 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4112 | out: |
05d564fe | 4113 | return status; |
1da177e4 LT |
4114 | } |
4115 | ||
4116 | /* | |
4117 | * Decode OPEN response | |
4118 | */ | |
8687b63a | 4119 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4120 | { |
05d564fe AA |
4121 | struct xdr_stream xdr; |
4122 | struct compound_hdr hdr; | |
4123 | int status; | |
4124 | ||
4125 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4126 | status = decode_compound_hdr(&xdr, &hdr); | |
4127 | if (status) | |
4128 | goto out; | |
4129 | status = decode_putfh(&xdr); | |
4130 | if (status) | |
4131 | goto out; | |
4132 | status = decode_savefh(&xdr); | |
4133 | if (status) | |
4134 | goto out; | |
4135 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4136 | if (status) |
4137 | goto out; | |
9936781d | 4138 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4139 | goto out; |
56ae19f3 TM |
4140 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4141 | goto out; | |
365c8f58 | 4142 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4143 | goto out; |
4144 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4145 | out: |
05d564fe | 4146 | return status; |
1da177e4 LT |
4147 | } |
4148 | ||
4149 | /* | |
4150 | * Decode OPEN_CONFIRM response | |
4151 | */ | |
8687b63a | 4152 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4153 | { |
05d564fe AA |
4154 | struct xdr_stream xdr; |
4155 | struct compound_hdr hdr; | |
4156 | int status; | |
4157 | ||
4158 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4159 | status = decode_compound_hdr(&xdr, &hdr); | |
4160 | if (status) | |
4161 | goto out; | |
4162 | status = decode_putfh(&xdr); | |
4163 | if (status) | |
4164 | goto out; | |
4165 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4166 | out: |
05d564fe | 4167 | return status; |
1da177e4 LT |
4168 | } |
4169 | ||
4170 | /* | |
4171 | * Decode OPEN response | |
4172 | */ | |
8687b63a | 4173 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4174 | { |
05d564fe AA |
4175 | struct xdr_stream xdr; |
4176 | struct compound_hdr hdr; | |
4177 | int status; | |
4178 | ||
4179 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4180 | status = decode_compound_hdr(&xdr, &hdr); | |
4181 | if (status) | |
4182 | goto out; | |
4183 | status = decode_putfh(&xdr); | |
4184 | if (status) | |
4185 | goto out; | |
4186 | status = decode_open(&xdr, res); | |
4187 | if (status) | |
4188 | goto out; | |
864472e9 | 4189 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4190 | out: |
05d564fe | 4191 | return status; |
1da177e4 LT |
4192 | } |
4193 | ||
4194 | /* | |
4195 | * Decode SETATTR response | |
4196 | */ | |
8687b63a | 4197 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4198 | { |
05d564fe AA |
4199 | struct xdr_stream xdr; |
4200 | struct compound_hdr hdr; | |
4201 | int status; | |
4202 | ||
4203 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4204 | status = decode_compound_hdr(&xdr, &hdr); | |
4205 | if (status) | |
4206 | goto out; | |
4207 | status = decode_putfh(&xdr); | |
4208 | if (status) | |
4209 | goto out; | |
9e9ecc03 | 4210 | status = decode_setattr(&xdr); |
05d564fe AA |
4211 | if (status) |
4212 | goto out; | |
78f945f8 | 4213 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4214 | out: |
05d564fe | 4215 | return status; |
1da177e4 LT |
4216 | } |
4217 | ||
4218 | /* | |
4219 | * Decode LOCK response | |
4220 | */ | |
8687b63a | 4221 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4222 | { |
4223 | struct xdr_stream xdr; | |
4224 | struct compound_hdr hdr; | |
4225 | int status; | |
4226 | ||
4227 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4228 | status = decode_compound_hdr(&xdr, &hdr); | |
4229 | if (status) | |
4230 | goto out; | |
4231 | status = decode_putfh(&xdr); | |
4232 | if (status) | |
4233 | goto out; | |
4234 | status = decode_lock(&xdr, res); | |
4235 | out: | |
4236 | return status; | |
4237 | } | |
4238 | ||
4239 | /* | |
4240 | * Decode LOCKT response | |
4241 | */ | |
8687b63a | 4242 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4243 | { |
4244 | struct xdr_stream xdr; | |
4245 | struct compound_hdr hdr; | |
4246 | int status; | |
4247 | ||
4248 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4249 | status = decode_compound_hdr(&xdr, &hdr); | |
4250 | if (status) | |
4251 | goto out; | |
4252 | status = decode_putfh(&xdr); | |
4253 | if (status) | |
4254 | goto out; | |
4255 | status = decode_lockt(&xdr, res); | |
4256 | out: | |
4257 | return status; | |
4258 | } | |
4259 | ||
4260 | /* | |
4261 | * Decode LOCKU response | |
4262 | */ | |
8687b63a | 4263 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4264 | { |
4265 | struct xdr_stream xdr; | |
4266 | struct compound_hdr hdr; | |
4267 | int status; | |
4268 | ||
4269 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4270 | status = decode_compound_hdr(&xdr, &hdr); | |
4271 | if (status) | |
4272 | goto out; | |
4273 | status = decode_putfh(&xdr); | |
4274 | if (status) | |
4275 | goto out; | |
4276 | status = decode_locku(&xdr, res); | |
4277 | out: | |
4278 | return status; | |
4279 | } | |
4280 | ||
4281 | /* | |
4282 | * Decode READLINK response | |
4283 | */ | |
f50c7000 BH |
4284 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4285 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4286 | { |
4287 | struct xdr_stream xdr; | |
4288 | struct compound_hdr hdr; | |
4289 | int status; | |
4290 | ||
4291 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4292 | status = decode_compound_hdr(&xdr, &hdr); | |
4293 | if (status) | |
4294 | goto out; | |
4295 | status = decode_putfh(&xdr); | |
4296 | if (status) | |
4297 | goto out; | |
4298 | status = decode_readlink(&xdr, rqstp); | |
4299 | out: | |
4300 | return status; | |
4301 | } | |
4302 | ||
4303 | /* | |
4304 | * Decode READDIR response | |
4305 | */ | |
8687b63a | 4306 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4307 | { |
4308 | struct xdr_stream xdr; | |
4309 | struct compound_hdr hdr; | |
4310 | int status; | |
4311 | ||
4312 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4313 | status = decode_compound_hdr(&xdr, &hdr); | |
4314 | if (status) | |
4315 | goto out; | |
4316 | status = decode_putfh(&xdr); | |
4317 | if (status) | |
4318 | goto out; | |
4319 | status = decode_readdir(&xdr, rqstp, res); | |
4320 | out: | |
4321 | return status; | |
4322 | } | |
4323 | ||
4324 | /* | |
4325 | * Decode Read response | |
4326 | */ | |
8687b63a | 4327 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4328 | { |
4329 | struct xdr_stream xdr; | |
4330 | struct compound_hdr hdr; | |
4331 | int status; | |
4332 | ||
4333 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4334 | status = decode_compound_hdr(&xdr, &hdr); | |
4335 | if (status) | |
4336 | goto out; | |
4337 | status = decode_putfh(&xdr); | |
4338 | if (status) | |
4339 | goto out; | |
4340 | status = decode_read(&xdr, rqstp, res); | |
4341 | if (!status) | |
4342 | status = res->count; | |
4343 | out: | |
4344 | return status; | |
4345 | } | |
4346 | ||
4347 | /* | |
4348 | * Decode WRITE response | |
4349 | */ | |
8687b63a | 4350 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4351 | { |
4352 | struct xdr_stream xdr; | |
4353 | struct compound_hdr hdr; | |
4354 | int status; | |
4355 | ||
4356 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4357 | status = decode_compound_hdr(&xdr, &hdr); | |
4358 | if (status) | |
4359 | goto out; | |
4360 | status = decode_putfh(&xdr); | |
4361 | if (status) | |
4362 | goto out; | |
4363 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4364 | if (status) |
4365 | goto out; | |
4366 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4367 | if (!status) |
4368 | status = res->count; | |
4369 | out: | |
4370 | return status; | |
4371 | } | |
4372 | ||
4373 | /* | |
4374 | * Decode COMMIT response | |
4375 | */ | |
8687b63a | 4376 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4377 | { |
4378 | struct xdr_stream xdr; | |
4379 | struct compound_hdr hdr; | |
4380 | int status; | |
4381 | ||
4382 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4383 | status = decode_compound_hdr(&xdr, &hdr); | |
4384 | if (status) | |
4385 | goto out; | |
4386 | status = decode_putfh(&xdr); | |
4387 | if (status) | |
4388 | goto out; | |
4389 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4390 | if (status) |
4391 | goto out; | |
4392 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4393 | out: |
4394 | return status; | |
4395 | } | |
4396 | ||
4397 | /* | |
4398 | * FSINFO request | |
4399 | */ | |
3dda5e43 BH |
4400 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
4401 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
4402 | { |
4403 | struct xdr_stream xdr; | |
4404 | struct compound_hdr hdr; | |
4405 | int status; | |
4406 | ||
4407 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4408 | status = decode_compound_hdr(&xdr, &hdr); | |
4409 | if (!status) | |
4410 | status = decode_putfh(&xdr); | |
4411 | if (!status) | |
3dda5e43 | 4412 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
4413 | return status; |
4414 | } | |
4415 | ||
4416 | /* | |
4417 | * PATHCONF request | |
4418 | */ | |
d45b2989 BH |
4419 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
4420 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
4421 | { |
4422 | struct xdr_stream xdr; | |
4423 | struct compound_hdr hdr; | |
4424 | int status; | |
4425 | ||
4426 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4427 | status = decode_compound_hdr(&xdr, &hdr); | |
4428 | if (!status) | |
4429 | status = decode_putfh(&xdr); | |
4430 | if (!status) | |
d45b2989 | 4431 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
4432 | return status; |
4433 | } | |
4434 | ||
4435 | /* | |
4436 | * STATFS request | |
4437 | */ | |
24ad148a BH |
4438 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
4439 | struct nfs4_statfs_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 | status = decode_compound_hdr(&xdr, &hdr); | |
4447 | if (!status) | |
4448 | status = decode_putfh(&xdr); | |
4449 | if (!status) | |
24ad148a | 4450 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
4451 | return status; |
4452 | } | |
4453 | ||
4454 | /* | |
4455 | * GETATTR_BITMAP request | |
4456 | */ | |
8687b63a | 4457 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4458 | { |
4459 | struct xdr_stream xdr; | |
4460 | struct compound_hdr hdr; | |
4461 | int status; | |
4462 | ||
4463 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4464 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4465 | goto out; | |
4466 | if ((status = decode_putfh(&xdr)) != 0) | |
4467 | goto out; | |
4468 | status = decode_server_caps(&xdr, res); | |
4469 | out: | |
4470 | return status; | |
4471 | } | |
4472 | ||
4473 | /* | |
4474 | * Decode RENEW response | |
4475 | */ | |
8687b63a | 4476 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4477 | { |
4478 | struct xdr_stream xdr; | |
4479 | struct compound_hdr hdr; | |
4480 | int status; | |
4481 | ||
4482 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4483 | status = decode_compound_hdr(&xdr, &hdr); | |
4484 | if (!status) | |
4485 | status = decode_renew(&xdr); | |
4486 | return status; | |
4487 | } | |
4488 | ||
4489 | /* | |
4490 | * a SETCLIENTID request | |
4491 | */ | |
8687b63a | 4492 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4493 | struct nfs_client *clp) |
1da177e4 LT |
4494 | { |
4495 | struct xdr_stream xdr; | |
4496 | struct compound_hdr hdr; | |
4497 | int status; | |
4498 | ||
4499 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4500 | status = decode_compound_hdr(&xdr, &hdr); | |
4501 | if (!status) | |
4502 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
4503 | return status; |
4504 | } | |
4505 | ||
4506 | /* | |
4507 | * a SETCLIENTID_CONFIRM request | |
4508 | */ | |
8687b63a | 4509 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4510 | { |
4511 | struct xdr_stream xdr; | |
4512 | struct compound_hdr hdr; | |
4513 | int status; | |
4514 | ||
4515 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4516 | status = decode_compound_hdr(&xdr, &hdr); | |
4517 | if (!status) | |
4518 | status = decode_setclientid_confirm(&xdr); | |
4519 | if (!status) | |
4520 | status = decode_putrootfh(&xdr); | |
4521 | if (!status) | |
4522 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4523 | return status; |
4524 | } | |
4525 | ||
4526 | /* | |
4527 | * DELEGRETURN request | |
4528 | */ | |
8687b63a | 4529 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4530 | { |
4531 | struct xdr_stream xdr; | |
4532 | struct compound_hdr hdr; | |
4533 | int status; | |
4534 | ||
4535 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4536 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4537 | if (status != 0) |
4538 | goto out; | |
4539 | status = decode_putfh(&xdr); | |
4540 | if (status != 0) | |
4541 | goto out; | |
4542 | status = decode_delegreturn(&xdr); | |
4543 | decode_getfattr(&xdr, res->fattr, res->server); | |
4544 | out: | |
1da177e4 LT |
4545 | return status; |
4546 | } | |
4547 | ||
683b57b4 TM |
4548 | /* |
4549 | * FS_LOCATIONS request | |
4550 | */ | |
22958463 BH |
4551 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
4552 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
4553 | { |
4554 | struct xdr_stream xdr; | |
4555 | struct compound_hdr hdr; | |
4556 | int status; | |
4557 | ||
4558 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4559 | status = decode_compound_hdr(&xdr, &hdr); | |
4560 | if (status != 0) | |
4561 | goto out; | |
4562 | if ((status = decode_putfh(&xdr)) != 0) | |
4563 | goto out; | |
4564 | if ((status = decode_lookup(&xdr)) != 0) | |
4565 | goto out; | |
4566 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
4567 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
4568 | res->fs_locations->server); | |
683b57b4 TM |
4569 | out: |
4570 | return status; | |
4571 | } | |
4572 | ||
0dbb4c67 | 4573 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4574 | { |
4575 | uint32_t bitmap[2] = {0}; | |
4576 | uint32_t len; | |
4577 | ||
4578 | if (!*p++) { | |
4579 | if (!*p) | |
4580 | return ERR_PTR(-EAGAIN); | |
4581 | entry->eof = 1; | |
4582 | return ERR_PTR(-EBADCOOKIE); | |
4583 | } | |
4584 | ||
4585 | entry->prev_cookie = entry->cookie; | |
4586 | p = xdr_decode_hyper(p, &entry->cookie); | |
4587 | entry->len = ntohl(*p++); | |
4588 | entry->name = (const char *) p; | |
4589 | p += XDR_QUADLEN(entry->len); | |
4590 | ||
4591 | /* | |
4592 | * In case the server doesn't return an inode number, | |
4593 | * we fake one here. (We don't use inode number 0, | |
4594 | * since glibc seems to choke on it...) | |
4595 | */ | |
4596 | entry->ino = 1; | |
4597 | ||
4598 | len = ntohl(*p++); /* bitmap length */ | |
4599 | if (len-- > 0) { | |
4600 | bitmap[0] = ntohl(*p++); | |
4601 | if (len-- > 0) { | |
4602 | bitmap[1] = ntohl(*p++); | |
4603 | p += len; | |
4604 | } | |
4605 | } | |
4606 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4607 | if (len > 0) { | |
97d312d0 MN |
4608 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4609 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4610 | /* Ignore the return value of rdattr_error for now */ | |
4611 | p++; | |
4612 | len--; | |
4613 | } | |
1da177e4 LT |
4614 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4615 | xdr_decode_hyper(p, &entry->ino); | |
4616 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4617 | xdr_decode_hyper(p, &entry->ino); | |
4618 | p += len; | |
4619 | } | |
4620 | ||
4621 | entry->eof = !p[0] && p[1]; | |
4622 | return p; | |
4623 | } | |
4624 | ||
4625 | /* | |
4626 | * We need to translate between nfs status return values and | |
4627 | * the local errno values which may not be the same. | |
4628 | */ | |
4629 | static struct { | |
4630 | int stat; | |
4631 | int errno; | |
4632 | } nfs_errtbl[] = { | |
4633 | { NFS4_OK, 0 }, | |
856dff3d BH |
4634 | { NFS4ERR_PERM, -EPERM }, |
4635 | { NFS4ERR_NOENT, -ENOENT }, | |
4636 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
4637 | { NFS4ERR_NXIO, -ENXIO }, | |
4638 | { NFS4ERR_ACCESS, -EACCES }, | |
4639 | { NFS4ERR_EXIST, -EEXIST }, | |
4640 | { NFS4ERR_XDEV, -EXDEV }, | |
4641 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
4642 | { NFS4ERR_ISDIR, -EISDIR }, | |
4643 | { NFS4ERR_INVAL, -EINVAL }, | |
4644 | { NFS4ERR_FBIG, -EFBIG }, | |
4645 | { NFS4ERR_NOSPC, -ENOSPC }, | |
4646 | { NFS4ERR_ROFS, -EROFS }, | |
4647 | { NFS4ERR_MLINK, -EMLINK }, | |
4648 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
4649 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
4650 | { NFS4ERR_DQUOT, -EDQUOT }, | |
4651 | { NFS4ERR_STALE, -ESTALE }, | |
4652 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
4653 | { NFS4ERR_BADOWNER, -EINVAL }, | |
4654 | { NFS4ERR_BADNAME, -EINVAL }, | |
4655 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
4656 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
4657 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
4658 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
4659 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
4660 | { NFS4ERR_LOCKED, -EAGAIN }, | |
4661 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
4662 | { NFS4ERR_SYMLINK, -ELOOP }, | |
4663 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
4664 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
4665 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
4666 | * to be handled by a |
4667 | * middle-layer. | |
4668 | */ | |
856dff3d | 4669 | { -1, -EIO } |
1da177e4 LT |
4670 | }; |
4671 | ||
4672 | /* | |
4673 | * Convert an NFS error code to a local one. | |
4674 | * This one is used jointly by NFSv2 and NFSv3. | |
4675 | */ | |
4676 | static int | |
0a8ea437 | 4677 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4678 | { |
4679 | int i; | |
4680 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4681 | if (nfs_errtbl[i].stat == stat) | |
4682 | return nfs_errtbl[i].errno; | |
4683 | } | |
4684 | if (stat <= 10000 || stat > 10100) { | |
4685 | /* The server is looney tunes. */ | |
856dff3d | 4686 | return -ESERVERFAULT; |
1da177e4 LT |
4687 | } |
4688 | /* If we cannot translate the error, the recovery routines should | |
4689 | * handle it. | |
4690 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4691 | * not conflict with native Linux error codes. | |
4692 | */ | |
856dff3d | 4693 | return -stat; |
1da177e4 LT |
4694 | } |
4695 | ||
1da177e4 LT |
4696 | #define PROC(proc, argtype, restype) \ |
4697 | [NFSPROC4_CLNT_##proc] = { \ | |
4698 | .p_proc = NFSPROC4_COMPOUND, \ | |
4699 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4700 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4701 | .p_arglen = NFS4_##argtype##_sz, \ |
4702 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4703 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4704 | .p_name = #proc, \ | |
05d564fe | 4705 | } |
1da177e4 LT |
4706 | |
4707 | struct rpc_procinfo nfs4_procedures[] = { | |
4708 | PROC(READ, enc_read, dec_read), | |
4709 | PROC(WRITE, enc_write, dec_write), | |
4710 | PROC(COMMIT, enc_commit, dec_commit), | |
4711 | PROC(OPEN, enc_open, dec_open), | |
4712 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4713 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4714 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4715 | PROC(CLOSE, enc_close, dec_close), | |
4716 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4717 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4718 | PROC(RENEW, enc_renew, dec_renew), | |
4719 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4720 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4721 | PROC(LOCK, enc_lock, dec_lock), | |
4722 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4723 | PROC(LOCKU, enc_locku, dec_locku), | |
4724 | PROC(ACCESS, enc_access, dec_access), | |
4725 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4726 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4727 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4728 | PROC(REMOVE, enc_remove, dec_remove), | |
4729 | PROC(RENAME, enc_rename, dec_rename), | |
4730 | PROC(LINK, enc_link, dec_link), | |
4731 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4732 | PROC(CREATE, enc_create, dec_create), | |
4733 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4734 | PROC(STATFS, enc_statfs, dec_statfs), | |
4735 | PROC(READLINK, enc_readlink, dec_readlink), | |
4736 | PROC(READDIR, enc_readdir, dec_readdir), | |
4737 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4738 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4739 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4740 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4741 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4742 | }; |
4743 | ||
4744 | struct rpc_version nfs_version4 = { | |
4745 | .number = 4, | |
e8c96f8c | 4746 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4747 | .procs = nfs4_procedures |
4748 | }; | |
4749 | ||
4750 | /* | |
4751 | * Local variables: | |
4752 | * c-basic-offset: 8 | |
4753 | * End: | |
4754 | */ |