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++; |
1da177e4 LT |
752 | } |
753 | ||
cf8cdbe5 | 754 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 755 | { |
8687b63a | 756 | __be32 *p; |
1da177e4 | 757 | |
8ae20abd | 758 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 759 | WRITE32(OP_CLOSE); |
cee54fc9 | 760 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 761 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 762 | hdr->nops++; |
1da177e4 LT |
763 | } |
764 | ||
cf8cdbe5 | 765 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 766 | { |
8687b63a | 767 | __be32 *p; |
6c0195a4 | 768 | |
05d564fe AA |
769 | RESERVE_SPACE(16); |
770 | WRITE32(OP_COMMIT); | |
771 | WRITE64(args->offset); | |
772 | WRITE32(args->count); | |
d017931c | 773 | hdr->nops++; |
1da177e4 LT |
774 | } |
775 | ||
cf8cdbe5 | 776 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 777 | { |
8687b63a | 778 | __be32 *p; |
6c0195a4 | 779 | |
1da177e4 LT |
780 | RESERVE_SPACE(8); |
781 | WRITE32(OP_CREATE); | |
782 | WRITE32(create->ftype); | |
783 | ||
784 | switch (create->ftype) { | |
785 | case NF4LNK: | |
94a6d753 CL |
786 | RESERVE_SPACE(4); |
787 | WRITE32(create->u.symlink.len); | |
788 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
789 | break; |
790 | ||
791 | case NF4BLK: case NF4CHR: | |
792 | RESERVE_SPACE(8); | |
793 | WRITE32(create->u.device.specdata1); | |
794 | WRITE32(create->u.device.specdata2); | |
795 | break; | |
796 | ||
797 | default: | |
798 | break; | |
799 | } | |
800 | ||
801 | RESERVE_SPACE(4 + create->name->len); | |
802 | WRITE32(create->name->len); | |
803 | WRITEMEM(create->name->name, create->name->len); | |
d017931c | 804 | hdr->nops++; |
1da177e4 | 805 | |
cf8cdbe5 | 806 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
807 | } |
808 | ||
cf8cdbe5 | 809 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 810 | { |
05d564fe | 811 | __be32 *p; |
1da177e4 | 812 | |
05d564fe AA |
813 | RESERVE_SPACE(12); |
814 | WRITE32(OP_GETATTR); | |
815 | WRITE32(1); | |
816 | WRITE32(bitmap); | |
d017931c | 817 | hdr->nops++; |
1da177e4 LT |
818 | } |
819 | ||
cf8cdbe5 | 820 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 821 | { |
05d564fe | 822 | __be32 *p; |
1da177e4 | 823 | |
05d564fe AA |
824 | RESERVE_SPACE(16); |
825 | WRITE32(OP_GETATTR); | |
826 | WRITE32(2); | |
827 | WRITE32(bm0); | |
828 | WRITE32(bm1); | |
d017931c | 829 | hdr->nops++; |
1da177e4 LT |
830 | } |
831 | ||
cf8cdbe5 | 832 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 833 | { |
cf8cdbe5 AA |
834 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
835 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
836 | } |
837 | ||
cf8cdbe5 | 838 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 839 | { |
cf8cdbe5 AA |
840 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
841 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
842 | } |
843 | ||
cf8cdbe5 | 844 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 845 | { |
cf8cdbe5 AA |
846 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
847 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
848 | } |
849 | ||
cf8cdbe5 | 850 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 851 | { |
8687b63a | 852 | __be32 *p; |
1da177e4 LT |
853 | |
854 | RESERVE_SPACE(4); | |
855 | WRITE32(OP_GETFH); | |
d017931c | 856 | hdr->nops++; |
1da177e4 LT |
857 | } |
858 | ||
cf8cdbe5 | 859 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 860 | { |
8687b63a | 861 | __be32 *p; |
1da177e4 LT |
862 | |
863 | RESERVE_SPACE(8 + name->len); | |
864 | WRITE32(OP_LINK); | |
865 | WRITE32(name->len); | |
866 | WRITEMEM(name->name, name->len); | |
d017931c | 867 | hdr->nops++; |
1da177e4 LT |
868 | } |
869 | ||
911d1aaf TM |
870 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
871 | { | |
872 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
873 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
874 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
875 | } | |
876 | ||
877 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
878 | { | |
879 | if (fl->fl_end == OFFSET_MAX) | |
880 | return ~(uint64_t)0; | |
881 | return fl->fl_end - fl->fl_start + 1; | |
882 | } | |
883 | ||
1da177e4 LT |
884 | /* |
885 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
886 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
887 | */ | |
cf8cdbe5 | 888 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 889 | { |
8687b63a | 890 | __be32 *p; |
1da177e4 LT |
891 | |
892 | RESERVE_SPACE(32); | |
893 | WRITE32(OP_LOCK); | |
911d1aaf TM |
894 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
895 | WRITE32(args->reclaim); | |
896 | WRITE64(args->fl->fl_start); | |
897 | WRITE64(nfs4_lock_length(args->fl)); | |
898 | WRITE32(args->new_lock_owner); | |
899 | if (args->new_lock_owner){ | |
9f958ab8 | 900 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 901 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 902 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
903 | WRITE32(args->lock_seqid->sequence->counter); |
904 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
905 | WRITE32(16); |
906 | WRITEMEM("lock id:", 8); | |
907 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
908 | } |
909 | else { | |
8ae20abd TM |
910 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
911 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 912 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 913 | } |
d017931c | 914 | hdr->nops++; |
1da177e4 LT |
915 | } |
916 | ||
cf8cdbe5 | 917 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 918 | { |
8687b63a | 919 | __be32 *p; |
1da177e4 | 920 | |
9f958ab8 | 921 | RESERVE_SPACE(52); |
1da177e4 | 922 | WRITE32(OP_LOCKT); |
911d1aaf TM |
923 | WRITE32(nfs4_lock_type(args->fl, 0)); |
924 | WRITE64(args->fl->fl_start); | |
925 | WRITE64(nfs4_lock_length(args->fl)); | |
926 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
927 | WRITE32(16); |
928 | WRITEMEM("lock id:", 8); | |
929 | WRITE64(args->lock_owner.id); | |
d017931c | 930 | hdr->nops++; |
1da177e4 LT |
931 | } |
932 | ||
cf8cdbe5 | 933 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 934 | { |
8687b63a | 935 | __be32 *p; |
1da177e4 | 936 | |
8ae20abd | 937 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 938 | WRITE32(OP_LOCKU); |
911d1aaf TM |
939 | WRITE32(nfs4_lock_type(args->fl, 0)); |
940 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 941 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
942 | WRITE64(args->fl->fl_start); |
943 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 944 | hdr->nops++; |
1da177e4 LT |
945 | } |
946 | ||
cf8cdbe5 | 947 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
948 | { |
949 | int len = name->len; | |
8687b63a | 950 | __be32 *p; |
1da177e4 LT |
951 | |
952 | RESERVE_SPACE(8 + len); | |
953 | WRITE32(OP_LOOKUP); | |
954 | WRITE32(len); | |
955 | WRITEMEM(name->name, len); | |
d017931c | 956 | hdr->nops++; |
1da177e4 LT |
957 | } |
958 | ||
dc0b027d | 959 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 960 | { |
8687b63a | 961 | __be32 *p; |
1da177e4 LT |
962 | |
963 | RESERVE_SPACE(8); | |
dc0b027d | 964 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
965 | case FMODE_READ: |
966 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
967 | break; | |
968 | case FMODE_WRITE: | |
969 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
970 | break; | |
971 | case FMODE_READ|FMODE_WRITE: | |
972 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
973 | break; | |
974 | default: | |
975 | WRITE32(0); | |
1da177e4 LT |
976 | } |
977 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
978 | } | |
979 | ||
980 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
981 | { | |
8687b63a | 982 | __be32 *p; |
1da177e4 LT |
983 | /* |
984 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
985 | * owner 4 = 32 | |
986 | */ | |
987 | RESERVE_SPACE(8); | |
988 | WRITE32(OP_OPEN); | |
cee54fc9 | 989 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 990 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 991 | RESERVE_SPACE(28); |
1da177e4 | 992 | WRITE64(arg->clientid); |
9f958ab8 TM |
993 | WRITE32(16); |
994 | WRITEMEM("open id:", 8); | |
995 | WRITE64(arg->id); | |
1da177e4 LT |
996 | } |
997 | ||
998 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
999 | { | |
8687b63a | 1000 | __be32 *p; |
1da177e4 LT |
1001 | |
1002 | RESERVE_SPACE(4); | |
1003 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
1004 | case 0: |
1005 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1006 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1007 | break; | |
1008 | default: | |
1009 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1010 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
1011 | } |
1012 | } | |
1013 | ||
1014 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1015 | { | |
8687b63a | 1016 | __be32 *p; |
1da177e4 LT |
1017 | |
1018 | RESERVE_SPACE(4); | |
1019 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1020 | case 0: |
1021 | WRITE32(NFS4_OPEN_NOCREATE); | |
1022 | break; | |
1023 | default: | |
1024 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1025 | WRITE32(NFS4_OPEN_CREATE); | |
1026 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1027 | } |
1028 | } | |
1029 | ||
bd7bf9d5 | 1030 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1031 | { |
8687b63a | 1032 | __be32 *p; |
1da177e4 LT |
1033 | |
1034 | RESERVE_SPACE(4); | |
1035 | switch (delegation_type) { | |
05d564fe AA |
1036 | case 0: |
1037 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1038 | break; | |
1039 | case FMODE_READ: | |
1040 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1041 | break; | |
1042 | case FMODE_WRITE|FMODE_READ: | |
1043 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1044 | break; | |
1045 | default: | |
1046 | BUG(); | |
1da177e4 LT |
1047 | } |
1048 | } | |
1049 | ||
1050 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1051 | { | |
8687b63a | 1052 | __be32 *p; |
1da177e4 LT |
1053 | |
1054 | RESERVE_SPACE(4); | |
1055 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1056 | encode_string(xdr, name->len, name->name); | |
1057 | } | |
1058 | ||
bd7bf9d5 | 1059 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1060 | { |
8687b63a | 1061 | __be32 *p; |
1da177e4 LT |
1062 | |
1063 | RESERVE_SPACE(4); | |
1064 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1065 | encode_delegation_type(xdr, type); | |
1066 | } | |
1067 | ||
1068 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1069 | { | |
8687b63a | 1070 | __be32 *p; |
1da177e4 | 1071 | |
8ae20abd | 1072 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1073 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1074 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1075 | encode_string(xdr, name->len, name->name); |
1076 | } | |
1077 | ||
cf8cdbe5 | 1078 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1079 | { |
1080 | encode_openhdr(xdr, arg); | |
1081 | encode_opentype(xdr, arg); | |
1082 | switch (arg->claim) { | |
05d564fe AA |
1083 | case NFS4_OPEN_CLAIM_NULL: |
1084 | encode_claim_null(xdr, arg->name); | |
1085 | break; | |
1086 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1087 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1088 | break; | |
1089 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1090 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1091 | break; | |
1092 | default: | |
1093 | BUG(); | |
1da177e4 | 1094 | } |
d017931c | 1095 | hdr->nops++; |
1da177e4 LT |
1096 | } |
1097 | ||
cf8cdbe5 | 1098 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1099 | { |
8687b63a | 1100 | __be32 *p; |
1da177e4 | 1101 | |
8ae20abd | 1102 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1103 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1104 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1105 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1106 | hdr->nops++; |
1da177e4 LT |
1107 | } |
1108 | ||
cf8cdbe5 | 1109 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1110 | { |
8687b63a | 1111 | __be32 *p; |
1da177e4 | 1112 | |
8ae20abd | 1113 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1114 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1115 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1116 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1117 | encode_share_access(xdr, arg->fmode); |
d017931c | 1118 | hdr->nops++; |
1da177e4 LT |
1119 | } |
1120 | ||
cf8cdbe5 | 1121 | static void |
d017931c | 1122 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1123 | { |
1124 | int len = fh->size; | |
8687b63a | 1125 | __be32 *p; |
1da177e4 LT |
1126 | |
1127 | RESERVE_SPACE(8 + len); | |
1128 | WRITE32(OP_PUTFH); | |
1129 | WRITE32(len); | |
1130 | WRITEMEM(fh->data, len); | |
d017931c | 1131 | hdr->nops++; |
1da177e4 LT |
1132 | } |
1133 | ||
cf8cdbe5 | 1134 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1135 | { |
05d564fe | 1136 | __be32 *p; |
6c0195a4 | 1137 | |
05d564fe AA |
1138 | RESERVE_SPACE(4); |
1139 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1140 | hdr->nops++; |
1da177e4 LT |
1141 | } |
1142 | ||
1143 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1144 | { | |
1da177e4 | 1145 | nfs4_stateid stateid; |
8687b63a | 1146 | __be32 *p; |
1da177e4 | 1147 | |
8ae20abd | 1148 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1149 | if (ctx->state != NULL) { |
1150 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1151 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1152 | } else |
8ae20abd | 1153 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1154 | } |
1155 | ||
cf8cdbe5 | 1156 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1157 | { |
8687b63a | 1158 | __be32 *p; |
1da177e4 LT |
1159 | |
1160 | RESERVE_SPACE(4); | |
1161 | WRITE32(OP_READ); | |
1162 | ||
1163 | encode_stateid(xdr, args->context); | |
1164 | ||
1165 | RESERVE_SPACE(12); | |
1166 | WRITE64(args->offset); | |
1167 | WRITE32(args->count); | |
d017931c | 1168 | hdr->nops++; |
1da177e4 LT |
1169 | } |
1170 | ||
cf8cdbe5 | 1171 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1172 | { |
97d312d0 MN |
1173 | uint32_t attrs[2] = { |
1174 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1175 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1176 | }; | |
8687b63a | 1177 | __be32 *p; |
1da177e4 | 1178 | |
8ae20abd | 1179 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1180 | WRITE32(OP_READDIR); |
1181 | WRITE64(readdir->cookie); | |
8ae20abd | 1182 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1183 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1184 | WRITE32(readdir->count); | |
1185 | WRITE32(2); | |
97d312d0 MN |
1186 | /* Switch to mounted_on_fileid if the server supports it */ |
1187 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1188 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1189 | else | |
1190 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1191 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1192 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1193 | hdr->nops++; |
44109241 FI |
1194 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1195 | __func__, | |
eadf4598 TM |
1196 | (unsigned long long)readdir->cookie, |
1197 | ((u32 *)readdir->verifier.data)[0], | |
1198 | ((u32 *)readdir->verifier.data)[1], | |
1199 | attrs[0] & readdir->bitmask[0], | |
1200 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1201 | } |
1202 | ||
cf8cdbe5 | 1203 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1204 | { |
8687b63a | 1205 | __be32 *p; |
1da177e4 LT |
1206 | |
1207 | RESERVE_SPACE(4); | |
1208 | WRITE32(OP_READLINK); | |
d017931c | 1209 | hdr->nops++; |
1da177e4 LT |
1210 | } |
1211 | ||
cf8cdbe5 | 1212 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1213 | { |
8687b63a | 1214 | __be32 *p; |
1da177e4 LT |
1215 | |
1216 | RESERVE_SPACE(8 + name->len); | |
1217 | WRITE32(OP_REMOVE); | |
1218 | WRITE32(name->len); | |
1219 | WRITEMEM(name->name, name->len); | |
d017931c | 1220 | hdr->nops++; |
1da177e4 LT |
1221 | } |
1222 | ||
cf8cdbe5 | 1223 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1224 | { |
8687b63a | 1225 | __be32 *p; |
1da177e4 LT |
1226 | |
1227 | RESERVE_SPACE(8 + oldname->len); | |
1228 | WRITE32(OP_RENAME); | |
1229 | WRITE32(oldname->len); | |
1230 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1231 | |
1da177e4 LT |
1232 | RESERVE_SPACE(4 + newname->len); |
1233 | WRITE32(newname->len); | |
1234 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1235 | hdr->nops++; |
1da177e4 LT |
1236 | } |
1237 | ||
cf8cdbe5 | 1238 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1239 | { |
8687b63a | 1240 | __be32 *p; |
1da177e4 LT |
1241 | |
1242 | RESERVE_SPACE(12); | |
1243 | WRITE32(OP_RENEW); | |
1244 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1245 | hdr->nops++; |
1da177e4 LT |
1246 | } |
1247 | ||
cf8cdbe5 | 1248 | static void |
d017931c | 1249 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1250 | { |
8687b63a | 1251 | __be32 *p; |
56ae19f3 TM |
1252 | |
1253 | RESERVE_SPACE(4); | |
1254 | WRITE32(OP_RESTOREFH); | |
d017931c | 1255 | hdr->nops++; |
56ae19f3 TM |
1256 | } |
1257 | ||
23ec6965 | 1258 | static int |
d017931c | 1259 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1260 | { |
8687b63a | 1261 | __be32 *p; |
23ec6965 | 1262 | |
8ae20abd | 1263 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1264 | WRITE32(OP_SETATTR); |
8ae20abd | 1265 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1266 | RESERVE_SPACE(2*4); |
1267 | WRITE32(1); | |
1268 | WRITE32(FATTR4_WORD0_ACL); | |
1269 | if (arg->acl_len % 4) | |
1270 | return -EINVAL; | |
1271 | RESERVE_SPACE(4); | |
1272 | WRITE32(arg->acl_len); | |
1273 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1274 | hdr->nops++; |
23ec6965 BF |
1275 | return 0; |
1276 | } | |
1277 | ||
cf8cdbe5 | 1278 | static void |
d017931c | 1279 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1280 | { |
8687b63a | 1281 | __be32 *p; |
1da177e4 LT |
1282 | |
1283 | RESERVE_SPACE(4); | |
1284 | WRITE32(OP_SAVEFH); | |
d017931c | 1285 | hdr->nops++; |
1da177e4 LT |
1286 | } |
1287 | ||
cf8cdbe5 | 1288 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1289 | { |
8687b63a | 1290 | __be32 *p; |
6c0195a4 | 1291 | |
05d564fe AA |
1292 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1293 | WRITE32(OP_SETATTR); | |
8ae20abd | 1294 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1295 | hdr->nops++; |
cf8cdbe5 | 1296 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1297 | } |
1298 | ||
cf8cdbe5 | 1299 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1300 | { |
8687b63a | 1301 | __be32 *p; |
1da177e4 | 1302 | |
8ae20abd | 1303 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1304 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1305 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1306 | |
1307 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1308 | RESERVE_SPACE(4); | |
1309 | WRITE32(setclientid->sc_prog); | |
1310 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1311 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1312 | RESERVE_SPACE(4); | |
1313 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1314 | hdr->nops++; |
1da177e4 LT |
1315 | } |
1316 | ||
cf8cdbe5 | 1317 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1318 | { |
05d564fe | 1319 | __be32 *p; |
1da177e4 | 1320 | |
05d564fe AA |
1321 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1322 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1323 | WRITE64(client_state->cl_clientid); | |
1324 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1325 | hdr->nops++; |
1da177e4 LT |
1326 | } |
1327 | ||
cf8cdbe5 | 1328 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1329 | { |
8687b63a | 1330 | __be32 *p; |
1da177e4 LT |
1331 | |
1332 | RESERVE_SPACE(4); | |
1333 | WRITE32(OP_WRITE); | |
1334 | ||
1335 | encode_stateid(xdr, args->context); | |
1336 | ||
1337 | RESERVE_SPACE(16); | |
1338 | WRITE64(args->offset); | |
1339 | WRITE32(args->stable); | |
1340 | WRITE32(args->count); | |
1341 | ||
1342 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1343 | hdr->nops++; |
1da177e4 LT |
1344 | } |
1345 | ||
cf8cdbe5 | 1346 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1347 | { |
8687b63a | 1348 | __be32 *p; |
1da177e4 | 1349 | |
8ae20abd | 1350 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1351 | |
1352 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1353 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1354 | hdr->nops++; |
1da177e4 LT |
1355 | } |
1356 | /* | |
1357 | * END OF "GENERIC" ENCODE ROUTINES. | |
1358 | */ | |
1359 | ||
1360 | /* | |
1361 | * Encode an ACCESS request | |
1362 | */ | |
8687b63a | 1363 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1364 | { |
1365 | struct xdr_stream xdr; | |
1366 | struct compound_hdr hdr = { | |
d017931c | 1367 | .nops = 0, |
1da177e4 | 1368 | }; |
1da177e4 LT |
1369 | |
1370 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1371 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1372 | encode_putfh(&xdr, args->fh, &hdr); |
1373 | encode_access(&xdr, args->access, &hdr); | |
1374 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1375 | encode_nops(&hdr); |
cf8cdbe5 | 1376 | return 0; |
1da177e4 LT |
1377 | } |
1378 | ||
1379 | /* | |
1380 | * Encode LOOKUP request | |
1381 | */ | |
8687b63a | 1382 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1383 | { |
1384 | struct xdr_stream xdr; | |
1385 | struct compound_hdr hdr = { | |
d017931c | 1386 | .nops = 0, |
1da177e4 | 1387 | }; |
1da177e4 LT |
1388 | |
1389 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1390 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1391 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1392 | encode_lookup(&xdr, args->name, &hdr); | |
1393 | encode_getfh(&xdr, &hdr); | |
1394 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1395 | encode_nops(&hdr); |
cf8cdbe5 | 1396 | return 0; |
1da177e4 LT |
1397 | } |
1398 | ||
1399 | /* | |
1400 | * Encode LOOKUP_ROOT request | |
1401 | */ | |
8687b63a | 1402 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1403 | { |
1404 | struct xdr_stream xdr; | |
1405 | struct compound_hdr hdr = { | |
d017931c | 1406 | .nops = 0, |
1da177e4 | 1407 | }; |
1da177e4 LT |
1408 | |
1409 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1410 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1411 | encode_putrootfh(&xdr, &hdr); |
1412 | encode_getfh(&xdr, &hdr); | |
1413 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1414 | encode_nops(&hdr); |
cf8cdbe5 | 1415 | return 0; |
1da177e4 LT |
1416 | } |
1417 | ||
1418 | /* | |
1419 | * Encode REMOVE request | |
1420 | */ | |
4fdc17b2 | 1421 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1422 | { |
1423 | struct xdr_stream xdr; | |
1424 | struct compound_hdr hdr = { | |
d017931c | 1425 | .nops = 0, |
1da177e4 | 1426 | }; |
1da177e4 LT |
1427 | |
1428 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1429 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1430 | encode_putfh(&xdr, args->fh, &hdr); |
1431 | encode_remove(&xdr, &args->name, &hdr); | |
1432 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1433 | encode_nops(&hdr); |
cf8cdbe5 | 1434 | return 0; |
1da177e4 LT |
1435 | } |
1436 | ||
1437 | /* | |
1438 | * Encode RENAME request | |
1439 | */ | |
8687b63a | 1440 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1441 | { |
1442 | struct xdr_stream xdr; | |
1443 | struct compound_hdr hdr = { | |
d017931c | 1444 | .nops = 0, |
1da177e4 | 1445 | }; |
1da177e4 LT |
1446 | |
1447 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1448 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1449 | encode_putfh(&xdr, args->old_dir, &hdr); |
1450 | encode_savefh(&xdr, &hdr); | |
1451 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1452 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1453 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1454 | encode_restorefh(&xdr, &hdr); | |
1455 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1456 | encode_nops(&hdr); |
cf8cdbe5 | 1457 | return 0; |
1da177e4 LT |
1458 | } |
1459 | ||
1460 | /* | |
1461 | * Encode LINK request | |
1462 | */ | |
8687b63a | 1463 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1464 | { |
1465 | struct xdr_stream xdr; | |
1466 | struct compound_hdr hdr = { | |
d017931c | 1467 | .nops = 0, |
1da177e4 | 1468 | }; |
1da177e4 LT |
1469 | |
1470 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1471 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1472 | encode_putfh(&xdr, args->fh, &hdr); |
1473 | encode_savefh(&xdr, &hdr); | |
1474 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1475 | encode_link(&xdr, args->name, &hdr); | |
1476 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1477 | encode_restorefh(&xdr, &hdr); | |
1478 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1479 | encode_nops(&hdr); |
cf8cdbe5 | 1480 | return 0; |
1da177e4 LT |
1481 | } |
1482 | ||
1483 | /* | |
1484 | * Encode CREATE request | |
1485 | */ | |
8687b63a | 1486 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1487 | { |
1488 | struct xdr_stream xdr; | |
1489 | struct compound_hdr hdr = { | |
d017931c | 1490 | .nops = 0, |
1da177e4 | 1491 | }; |
1da177e4 LT |
1492 | |
1493 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1494 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1495 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1496 | encode_savefh(&xdr, &hdr); | |
1497 | encode_create(&xdr, args, &hdr); | |
1498 | encode_getfh(&xdr, &hdr); | |
1499 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1500 | encode_restorefh(&xdr, &hdr); | |
1501 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1502 | encode_nops(&hdr); |
cf8cdbe5 | 1503 | return 0; |
1da177e4 LT |
1504 | } |
1505 | ||
1506 | /* | |
1507 | * Encode SYMLINK request | |
1508 | */ | |
8687b63a | 1509 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1510 | { |
1511 | return nfs4_xdr_enc_create(req, p, args); | |
1512 | } | |
1513 | ||
1514 | /* | |
1515 | * Encode GETATTR request | |
1516 | */ | |
8687b63a | 1517 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_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->fh, &hdr); |
1527 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1528 | encode_nops(&hdr); |
cf8cdbe5 | 1529 | return 0; |
1da177e4 LT |
1530 | } |
1531 | ||
1532 | /* | |
1533 | * Encode a CLOSE request | |
1534 | */ | |
8687b63a | 1535 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1536 | { |
05d564fe AA |
1537 | struct xdr_stream xdr; |
1538 | struct compound_hdr hdr = { | |
d017931c | 1539 | .nops = 0, |
05d564fe | 1540 | }; |
05d564fe AA |
1541 | |
1542 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1543 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1544 | encode_putfh(&xdr, args->fh, &hdr); |
1545 | encode_close(&xdr, args, &hdr); | |
1546 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1547 | encode_nops(&hdr); |
cf8cdbe5 | 1548 | return 0; |
1da177e4 LT |
1549 | } |
1550 | ||
1551 | /* | |
1552 | * Encode an OPEN request | |
1553 | */ | |
8687b63a | 1554 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1555 | { |
1556 | struct xdr_stream xdr; | |
1557 | struct compound_hdr hdr = { | |
d017931c | 1558 | .nops = 0, |
1da177e4 | 1559 | }; |
1da177e4 LT |
1560 | |
1561 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1562 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1563 | encode_putfh(&xdr, args->fh, &hdr); |
1564 | encode_savefh(&xdr, &hdr); | |
1565 | encode_open(&xdr, args, &hdr); | |
1566 | encode_getfh(&xdr, &hdr); | |
1567 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1568 | encode_restorefh(&xdr, &hdr); | |
1569 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1570 | encode_nops(&hdr); |
cf8cdbe5 | 1571 | return 0; |
1da177e4 LT |
1572 | } |
1573 | ||
1574 | /* | |
1575 | * Encode an OPEN_CONFIRM request | |
1576 | */ | |
8687b63a | 1577 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1578 | { |
1579 | struct xdr_stream xdr; | |
1580 | struct compound_hdr hdr = { | |
d017931c | 1581 | .nops = 0, |
1da177e4 | 1582 | }; |
1da177e4 LT |
1583 | |
1584 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1585 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1586 | encode_putfh(&xdr, args->fh, &hdr); |
1587 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1588 | encode_nops(&hdr); |
cf8cdbe5 | 1589 | return 0; |
1da177e4 LT |
1590 | } |
1591 | ||
1592 | /* | |
1593 | * Encode an OPEN request with no attributes. | |
1594 | */ | |
8687b63a | 1595 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1596 | { |
1597 | struct xdr_stream xdr; | |
1598 | struct compound_hdr hdr = { | |
d017931c | 1599 | .nops = 0, |
1da177e4 | 1600 | }; |
1da177e4 LT |
1601 | |
1602 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1603 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1604 | encode_putfh(&xdr, args->fh, &hdr); |
1605 | encode_open(&xdr, args, &hdr); | |
1606 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1607 | encode_nops(&hdr); |
cf8cdbe5 | 1608 | return 0; |
1da177e4 LT |
1609 | } |
1610 | ||
1611 | /* | |
1612 | * Encode an OPEN_DOWNGRADE request | |
1613 | */ | |
8687b63a | 1614 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1615 | { |
1616 | struct xdr_stream xdr; | |
1617 | struct compound_hdr hdr = { | |
d017931c | 1618 | .nops = 0, |
1da177e4 | 1619 | }; |
1da177e4 LT |
1620 | |
1621 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1622 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1623 | encode_putfh(&xdr, args->fh, &hdr); |
1624 | encode_open_downgrade(&xdr, args, &hdr); | |
1625 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1626 | encode_nops(&hdr); |
cf8cdbe5 | 1627 | return 0; |
1da177e4 LT |
1628 | } |
1629 | ||
1630 | /* | |
1631 | * Encode a LOCK request | |
1632 | */ | |
8687b63a | 1633 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1634 | { |
1635 | struct xdr_stream xdr; | |
1636 | struct compound_hdr hdr = { | |
d017931c | 1637 | .nops = 0, |
1da177e4 | 1638 | }; |
1da177e4 LT |
1639 | |
1640 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1641 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1642 | encode_putfh(&xdr, args->fh, &hdr); |
1643 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1644 | encode_nops(&hdr); |
cf8cdbe5 | 1645 | return 0; |
1da177e4 LT |
1646 | } |
1647 | ||
1648 | /* | |
1649 | * Encode a LOCKT request | |
1650 | */ | |
8687b63a | 1651 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1652 | { |
1653 | struct xdr_stream xdr; | |
1654 | struct compound_hdr hdr = { | |
d017931c | 1655 | .nops = 0, |
1da177e4 | 1656 | }; |
1da177e4 LT |
1657 | |
1658 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1659 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1660 | encode_putfh(&xdr, args->fh, &hdr); |
1661 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1662 | encode_nops(&hdr); |
cf8cdbe5 | 1663 | return 0; |
1da177e4 LT |
1664 | } |
1665 | ||
1666 | /* | |
1667 | * Encode a LOCKU request | |
1668 | */ | |
8687b63a | 1669 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1670 | { |
1671 | struct xdr_stream xdr; | |
1672 | struct compound_hdr hdr = { | |
d017931c | 1673 | .nops = 0, |
1da177e4 | 1674 | }; |
1da177e4 LT |
1675 | |
1676 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1677 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1678 | encode_putfh(&xdr, args->fh, &hdr); |
1679 | encode_locku(&xdr, args, &hdr); | |
d017931c | 1680 | encode_nops(&hdr); |
cf8cdbe5 | 1681 | return 0; |
1da177e4 LT |
1682 | } |
1683 | ||
1684 | /* | |
1685 | * Encode a READLINK request | |
1686 | */ | |
8687b63a | 1687 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1688 | { |
1689 | struct xdr_stream xdr; | |
1690 | struct compound_hdr hdr = { | |
d017931c | 1691 | .nops = 0, |
1da177e4 | 1692 | }; |
e3a535e1 TM |
1693 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1694 | unsigned int replen; | |
1da177e4 LT |
1695 | |
1696 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1697 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1698 | encode_putfh(&xdr, args->fh, &hdr); |
1699 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 TM |
1700 | |
1701 | /* set up reply kvec | |
1702 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1703 | * + OP_READLINK + status + string length = 8 | |
1704 | */ | |
1705 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; | |
1706 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1707 | args->pgbase, args->pglen); | |
d017931c | 1708 | encode_nops(&hdr); |
cf8cdbe5 | 1709 | return 0; |
1da177e4 LT |
1710 | } |
1711 | ||
1712 | /* | |
1713 | * Encode a READDIR request | |
1714 | */ | |
8687b63a | 1715 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1716 | { |
1717 | struct xdr_stream xdr; | |
1718 | struct compound_hdr hdr = { | |
d017931c | 1719 | .nops = 0, |
1da177e4 | 1720 | }; |
d6ac02df TM |
1721 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1722 | int replen; | |
1da177e4 LT |
1723 | |
1724 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1725 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1726 | encode_putfh(&xdr, args->fh, &hdr); |
1727 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df TM |
1728 | |
1729 | /* set up reply kvec | |
1730 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1731 | * + OP_READDIR + status + verifer(2) = 9 | |
1732 | */ | |
1733 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; | |
1734 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1735 | args->pgbase, args->count); | |
1736 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
3110ff80 | 1737 | __func__, replen, args->pages, |
d6ac02df | 1738 | args->pgbase, args->count); |
d017931c | 1739 | encode_nops(&hdr); |
cf8cdbe5 | 1740 | return 0; |
1da177e4 LT |
1741 | } |
1742 | ||
1743 | /* | |
1744 | * Encode a READ request | |
1745 | */ | |
8687b63a | 1746 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1747 | { |
1be27f36 | 1748 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 LT |
1749 | struct xdr_stream xdr; |
1750 | struct compound_hdr hdr = { | |
d017931c | 1751 | .nops = 0, |
1da177e4 | 1752 | }; |
cf8cdbe5 | 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_read(&xdr, args, &hdr); | |
1da177e4 LT |
1759 | |
1760 | /* set up reply kvec | |
1761 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status | |
1762 | * + OP_READ + status + eof + datalen = 9 | |
1763 | */ | |
1764 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; | |
1765 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1766 | args->pages, args->pgbase, args->count); | |
4f22ccc3 | 1767 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 1768 | encode_nops(&hdr); |
cf8cdbe5 | 1769 | return 0; |
1da177e4 LT |
1770 | } |
1771 | ||
1772 | /* | |
1773 | * Encode an SETATTR request | |
1774 | */ | |
8687b63a | 1775 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 1776 | { |
05d564fe AA |
1777 | struct xdr_stream xdr; |
1778 | struct compound_hdr hdr = { | |
d017931c | 1779 | .nops = 0, |
05d564fe | 1780 | }; |
05d564fe AA |
1781 | |
1782 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1783 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1784 | encode_putfh(&xdr, args->fh, &hdr); |
1785 | encode_setattr(&xdr, args, args->server, &hdr); | |
1786 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1787 | encode_nops(&hdr); |
cf8cdbe5 | 1788 | return 0; |
1da177e4 LT |
1789 | } |
1790 | ||
029d105e BF |
1791 | /* |
1792 | * Encode a GETACL request | |
1793 | */ | |
1794 | static int | |
8687b63a | 1795 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1796 | struct nfs_getaclargs *args) |
1797 | { | |
1798 | struct xdr_stream xdr; | |
1be27f36 | 1799 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
029d105e | 1800 | struct compound_hdr hdr = { |
d017931c | 1801 | .nops = 0, |
029d105e | 1802 | }; |
cf8cdbe5 | 1803 | int replen; |
029d105e BF |
1804 | |
1805 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1806 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1807 | encode_putfh(&xdr, args->fh, &hdr); |
1808 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); | |
1809 | ||
029d105e BF |
1810 | /* set up reply buffer: */ |
1811 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; | |
1812 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1813 | args->acl_pages, args->acl_pgbase, args->acl_len); | |
d017931c | 1814 | encode_nops(&hdr); |
cf8cdbe5 | 1815 | return 0; |
029d105e BF |
1816 | } |
1817 | ||
1da177e4 LT |
1818 | /* |
1819 | * Encode a WRITE request | |
1820 | */ | |
8687b63a | 1821 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1822 | { |
1823 | struct xdr_stream xdr; | |
1824 | struct compound_hdr hdr = { | |
d017931c | 1825 | .nops = 0, |
1da177e4 | 1826 | }; |
1da177e4 LT |
1827 | |
1828 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1829 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1830 | encode_putfh(&xdr, args->fh, &hdr); |
1831 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 1832 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 1833 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 1834 | encode_nops(&hdr); |
cf8cdbe5 | 1835 | return 0; |
1da177e4 LT |
1836 | } |
1837 | ||
1838 | /* | |
1839 | * a COMMIT request | |
1840 | */ | |
8687b63a | 1841 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1842 | { |
1843 | struct xdr_stream xdr; | |
1844 | struct compound_hdr hdr = { | |
d017931c | 1845 | .nops = 0, |
1da177e4 | 1846 | }; |
1da177e4 LT |
1847 | |
1848 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1849 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1850 | encode_putfh(&xdr, args->fh, &hdr); |
1851 | encode_commit(&xdr, args, &hdr); | |
1852 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1853 | encode_nops(&hdr); |
cf8cdbe5 | 1854 | return 0; |
1da177e4 LT |
1855 | } |
1856 | ||
1857 | /* | |
1858 | * FSINFO request | |
1859 | */ | |
8687b63a | 1860 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
1861 | { |
1862 | struct xdr_stream xdr; | |
1863 | struct compound_hdr hdr = { | |
d017931c | 1864 | .nops = 0, |
1da177e4 | 1865 | }; |
1da177e4 LT |
1866 | |
1867 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1868 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1869 | encode_putfh(&xdr, args->fh, &hdr); |
1870 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 1871 | encode_nops(&hdr); |
cf8cdbe5 | 1872 | return 0; |
1da177e4 LT |
1873 | } |
1874 | ||
1875 | /* | |
1876 | * a PATHCONF request | |
1877 | */ | |
8687b63a | 1878 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 1879 | { |
1da177e4 LT |
1880 | struct xdr_stream xdr; |
1881 | struct compound_hdr hdr = { | |
d017931c | 1882 | .nops = 0, |
1da177e4 | 1883 | }; |
1da177e4 LT |
1884 | |
1885 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1886 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1887 | encode_putfh(&xdr, args->fh, &hdr); |
1888 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
1889 | &hdr); | |
d017931c | 1890 | encode_nops(&hdr); |
cf8cdbe5 | 1891 | return 0; |
1da177e4 LT |
1892 | } |
1893 | ||
1894 | /* | |
1895 | * a STATFS request | |
1896 | */ | |
8687b63a | 1897 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 1898 | { |
1da177e4 LT |
1899 | struct xdr_stream xdr; |
1900 | struct compound_hdr hdr = { | |
d017931c | 1901 | .nops = 0, |
1da177e4 | 1902 | }; |
1da177e4 LT |
1903 | |
1904 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1905 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1906 | encode_putfh(&xdr, args->fh, &hdr); |
1907 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
1908 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 1909 | encode_nops(&hdr); |
cf8cdbe5 | 1910 | return 0; |
1da177e4 LT |
1911 | } |
1912 | ||
1913 | /* | |
1914 | * GETATTR_BITMAP request | |
1915 | */ | |
43652ad5 BH |
1916 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, |
1917 | struct nfs4_server_caps_arg *args) | |
1da177e4 LT |
1918 | { |
1919 | struct xdr_stream xdr; | |
1920 | struct compound_hdr hdr = { | |
d017931c | 1921 | .nops = 0, |
1da177e4 | 1922 | }; |
1da177e4 LT |
1923 | |
1924 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1925 | encode_compound_hdr(&xdr, req, &hdr); |
43652ad5 | 1926 | encode_putfh(&xdr, args->fhandle, &hdr); |
cf8cdbe5 AA |
1927 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| |
1928 | FATTR4_WORD0_LINK_SUPPORT| | |
1929 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
1930 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 1931 | encode_nops(&hdr); |
cf8cdbe5 | 1932 | return 0; |
1da177e4 LT |
1933 | } |
1934 | ||
1935 | /* | |
1936 | * a RENEW request | |
1937 | */ | |
8687b63a | 1938 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1939 | { |
1940 | struct xdr_stream xdr; | |
1941 | struct compound_hdr hdr = { | |
d017931c | 1942 | .nops = 0, |
1da177e4 LT |
1943 | }; |
1944 | ||
1945 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1946 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1947 | encode_renew(&xdr, clp, &hdr); |
d017931c | 1948 | encode_nops(&hdr); |
cf8cdbe5 | 1949 | return 0; |
1da177e4 LT |
1950 | } |
1951 | ||
1952 | /* | |
1953 | * a SETCLIENTID request | |
1954 | */ | |
8687b63a | 1955 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
1956 | { |
1957 | struct xdr_stream xdr; | |
1958 | struct compound_hdr hdr = { | |
d017931c | 1959 | .nops = 0, |
1da177e4 LT |
1960 | }; |
1961 | ||
1962 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1963 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 1964 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 1965 | encode_nops(&hdr); |
cf8cdbe5 | 1966 | return 0; |
1da177e4 LT |
1967 | } |
1968 | ||
1969 | /* | |
1970 | * a SETCLIENTID_CONFIRM request | |
1971 | */ | |
8687b63a | 1972 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1973 | { |
1974 | struct xdr_stream xdr; | |
1975 | struct compound_hdr hdr = { | |
d017931c | 1976 | .nops = 0, |
1da177e4 LT |
1977 | }; |
1978 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
1979 | |
1980 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 1981 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
1982 | encode_setclientid_confirm(&xdr, clp, &hdr); |
1983 | encode_putrootfh(&xdr, &hdr); | |
1984 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 1985 | encode_nops(&hdr); |
cf8cdbe5 | 1986 | return 0; |
1da177e4 LT |
1987 | } |
1988 | ||
1989 | /* | |
1990 | * DELEGRETURN request | |
1991 | */ | |
8687b63a | 1992 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
1993 | { |
1994 | struct xdr_stream xdr; | |
1995 | struct compound_hdr hdr = { | |
d017931c | 1996 | .nops = 0, |
1da177e4 | 1997 | }; |
1da177e4 LT |
1998 | |
1999 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2000 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2001 | encode_putfh(&xdr, args->fhandle, &hdr); |
2002 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
2003 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 2004 | encode_nops(&hdr); |
cf8cdbe5 | 2005 | return 0; |
1da177e4 LT |
2006 | } |
2007 | ||
683b57b4 TM |
2008 | /* |
2009 | * Encode FS_LOCATIONS request | |
2010 | */ | |
8687b63a | 2011 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2012 | { |
2013 | struct xdr_stream xdr; | |
2014 | struct compound_hdr hdr = { | |
d017931c | 2015 | .nops = 0, |
683b57b4 | 2016 | }; |
1be27f36 | 2017 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
683b57b4 | 2018 | int replen; |
683b57b4 TM |
2019 | |
2020 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 2021 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 AA |
2022 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2023 | encode_lookup(&xdr, args->name, &hdr); | |
2024 | encode_fs_locations(&xdr, args->bitmask, &hdr); | |
2025 | ||
683b57b4 | 2026 | /* set up reply |
830b8e33 | 2027 | * toplevel_status + OP_PUTFH + status |
683b57b4 TM |
2028 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
2029 | */ | |
2030 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; | |
2031 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, | |
2032 | 0, PAGE_SIZE); | |
d017931c | 2033 | encode_nops(&hdr); |
cf8cdbe5 | 2034 | return 0; |
683b57b4 TM |
2035 | } |
2036 | ||
1da177e4 LT |
2037 | /* |
2038 | * START OF "GENERIC" DECODE ROUTINES. | |
2039 | * These may look a little ugly since they are imported from a "generic" | |
2040 | * set of XDR encode/decode routines which are intended to be shared by | |
2041 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2042 | * | |
2043 | * If the pain of reading these is too great, it should be a straightforward | |
2044 | * task to translate them into Linux-specific versions which are more | |
2045 | * consistent with the style used in NFSv2/v3... | |
2046 | */ | |
2047 | #define READ32(x) (x) = ntohl(*p++) | |
2048 | #define READ64(x) do { \ | |
2049 | (x) = (u64)ntohl(*p++) << 32; \ | |
2050 | (x) |= ntohl(*p++); \ | |
2051 | } while (0) | |
2052 | #define READTIME(x) do { \ | |
2053 | p++; \ | |
2054 | (x.tv_sec) = ntohl(*p++); \ | |
2055 | (x.tv_nsec) = ntohl(*p++); \ | |
2056 | } while (0) | |
2057 | #define COPYMEM(x,nbytes) do { \ | |
2058 | memcpy((x), p, nbytes); \ | |
2059 | p += XDR_QUADLEN(nbytes); \ | |
2060 | } while (0) | |
2061 | ||
2062 | #define READ_BUF(nbytes) do { \ | |
2063 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2064 | if (unlikely(!p)) { \ |
fe82a183 | 2065 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2066 | " buffer\n", __func__); \ |
fe82a183 | 2067 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2068 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2069 | return -EIO; \ |
2070 | } \ | |
2071 | } while (0) | |
2072 | ||
683b57b4 | 2073 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2074 | { |
8687b63a | 2075 | __be32 *p; |
1da177e4 LT |
2076 | |
2077 | READ_BUF(4); | |
2078 | READ32(*len); | |
2079 | READ_BUF(*len); | |
2080 | *string = (char *)p; | |
2081 | return 0; | |
2082 | } | |
2083 | ||
2084 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2085 | { | |
8687b63a | 2086 | __be32 *p; |
1da177e4 LT |
2087 | |
2088 | READ_BUF(8); | |
2089 | READ32(hdr->status); | |
2090 | READ32(hdr->taglen); | |
6c0195a4 | 2091 | |
1da177e4 LT |
2092 | READ_BUF(hdr->taglen + 4); |
2093 | hdr->tag = (char *)p; | |
2094 | p += XDR_QUADLEN(hdr->taglen); | |
2095 | READ32(hdr->nops); | |
aadf6152 BH |
2096 | if (unlikely(hdr->nops < 1)) |
2097 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2098 | return 0; |
2099 | } | |
2100 | ||
2101 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2102 | { | |
8687b63a | 2103 | __be32 *p; |
1da177e4 LT |
2104 | uint32_t opnum; |
2105 | int32_t nfserr; | |
2106 | ||
2107 | READ_BUF(8); | |
2108 | READ32(opnum); | |
2109 | if (opnum != expected) { | |
fe82a183 CL |
2110 | dprintk("nfs: Server returned operation" |
2111 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2112 | opnum, expected); |
2113 | return -EIO; | |
2114 | } | |
2115 | READ32(nfserr); | |
2116 | if (nfserr != NFS_OK) | |
856dff3d | 2117 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2118 | return 0; |
2119 | } | |
2120 | ||
2121 | /* Dummy routine */ | |
adfa6f98 | 2122 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2123 | { |
8687b63a | 2124 | __be32 *p; |
683b57b4 | 2125 | unsigned int strlen; |
1da177e4 LT |
2126 | char *str; |
2127 | ||
2128 | READ_BUF(12); | |
2129 | return decode_opaque_inline(xdr, &strlen, &str); | |
2130 | } | |
2131 | ||
2132 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2133 | { | |
8687b63a AV |
2134 | uint32_t bmlen; |
2135 | __be32 *p; | |
1da177e4 LT |
2136 | |
2137 | READ_BUF(4); | |
2138 | READ32(bmlen); | |
2139 | ||
2140 | bitmap[0] = bitmap[1] = 0; | |
2141 | READ_BUF((bmlen << 2)); | |
2142 | if (bmlen > 0) { | |
2143 | READ32(bitmap[0]); | |
2144 | if (bmlen > 1) | |
2145 | READ32(bitmap[1]); | |
2146 | } | |
2147 | return 0; | |
2148 | } | |
2149 | ||
8687b63a | 2150 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2151 | { |
8687b63a | 2152 | __be32 *p; |
1da177e4 LT |
2153 | |
2154 | READ_BUF(4); | |
2155 | READ32(*attrlen); | |
2156 | *savep = xdr->p; | |
2157 | return 0; | |
2158 | } | |
2159 | ||
2160 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2161 | { | |
2162 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2163 | decode_attr_bitmap(xdr, bitmask); | |
2164 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2165 | } else | |
2166 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2167 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2168 | return 0; |
2169 | } | |
2170 | ||
2171 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2172 | { | |
8687b63a | 2173 | __be32 *p; |
409924e4 | 2174 | int ret = 0; |
1da177e4 LT |
2175 | |
2176 | *type = 0; | |
2177 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2178 | return -EIO; | |
2179 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2180 | READ_BUF(4); | |
2181 | READ32(*type); | |
2182 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2183 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2184 | return -EIO; |
2185 | } | |
2186 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2187 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2188 | } |
bca79478 | 2189 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2190 | return ret; |
1da177e4 LT |
2191 | } |
2192 | ||
2193 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2194 | { | |
8687b63a | 2195 | __be32 *p; |
409924e4 | 2196 | int ret = 0; |
1da177e4 LT |
2197 | |
2198 | *change = 0; | |
2199 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2200 | return -EIO; | |
2201 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2202 | READ_BUF(8); | |
2203 | READ64(*change); | |
2204 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2205 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2206 | } |
3110ff80 | 2207 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2208 | (unsigned long long)*change); |
409924e4 | 2209 | return ret; |
1da177e4 LT |
2210 | } |
2211 | ||
2212 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2213 | { | |
8687b63a | 2214 | __be32 *p; |
409924e4 | 2215 | int ret = 0; |
1da177e4 LT |
2216 | |
2217 | *size = 0; | |
2218 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2219 | return -EIO; | |
2220 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2221 | READ_BUF(8); | |
2222 | READ64(*size); | |
2223 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2224 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2225 | } |
3110ff80 | 2226 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2227 | return ret; |
1da177e4 LT |
2228 | } |
2229 | ||
2230 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2231 | { | |
8687b63a | 2232 | __be32 *p; |
1da177e4 LT |
2233 | |
2234 | *res = 0; | |
2235 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2236 | return -EIO; | |
2237 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2238 | READ_BUF(4); | |
2239 | READ32(*res); | |
2240 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2241 | } | |
3110ff80 | 2242 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2243 | return 0; |
2244 | } | |
2245 | ||
2246 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2247 | { | |
8687b63a | 2248 | __be32 *p; |
1da177e4 LT |
2249 | |
2250 | *res = 0; | |
2251 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2252 | return -EIO; | |
2253 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2254 | READ_BUF(4); | |
2255 | READ32(*res); | |
2256 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2257 | } | |
3110ff80 | 2258 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2259 | return 0; |
2260 | } | |
2261 | ||
8b4bdcf8 | 2262 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2263 | { |
8687b63a | 2264 | __be32 *p; |
409924e4 | 2265 | int ret = 0; |
1da177e4 LT |
2266 | |
2267 | fsid->major = 0; | |
2268 | fsid->minor = 0; | |
2269 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2270 | return -EIO; | |
2271 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2272 | READ_BUF(16); | |
2273 | READ64(fsid->major); | |
2274 | READ64(fsid->minor); | |
2275 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2276 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2277 | } |
3110ff80 | 2278 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2279 | (unsigned long long)fsid->major, |
2280 | (unsigned long long)fsid->minor); | |
409924e4 | 2281 | return ret; |
1da177e4 LT |
2282 | } |
2283 | ||
2284 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2285 | { | |
8687b63a | 2286 | __be32 *p; |
1da177e4 LT |
2287 | |
2288 | *res = 60; | |
2289 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2290 | return -EIO; | |
2291 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2292 | READ_BUF(4); | |
2293 | READ32(*res); | |
2294 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2295 | } | |
3110ff80 | 2296 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2297 | return 0; |
2298 | } | |
2299 | ||
2300 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2301 | { | |
8687b63a | 2302 | __be32 *p; |
1da177e4 LT |
2303 | |
2304 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2305 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2306 | return -EIO; | |
2307 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2308 | READ_BUF(4); | |
2309 | READ32(*res); | |
2310 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2311 | } | |
3110ff80 | 2312 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2313 | return 0; |
2314 | } | |
2315 | ||
2316 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2317 | { | |
8687b63a | 2318 | __be32 *p; |
409924e4 | 2319 | int ret = 0; |
1da177e4 LT |
2320 | |
2321 | *fileid = 0; | |
2322 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2323 | return -EIO; | |
2324 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2325 | READ_BUF(8); | |
2326 | READ64(*fileid); | |
2327 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2328 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2329 | } |
3110ff80 | 2330 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2331 | return ret; |
1da177e4 LT |
2332 | } |
2333 | ||
99baf625 MN |
2334 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2335 | { | |
8687b63a | 2336 | __be32 *p; |
409924e4 | 2337 | int ret = 0; |
99baf625 MN |
2338 | |
2339 | *fileid = 0; | |
2340 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2341 | return -EIO; | |
2342 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2343 | READ_BUF(8); | |
2344 | READ64(*fileid); | |
2345 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2346 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2347 | } |
3110ff80 | 2348 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2349 | return ret; |
99baf625 MN |
2350 | } |
2351 | ||
1da177e4 LT |
2352 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2353 | { | |
8687b63a | 2354 | __be32 *p; |
1da177e4 LT |
2355 | int status = 0; |
2356 | ||
2357 | *res = 0; | |
2358 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2359 | return -EIO; | |
2360 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2361 | READ_BUF(8); | |
2362 | READ64(*res); | |
2363 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2364 | } | |
3110ff80 | 2365 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2366 | return status; |
2367 | } | |
2368 | ||
2369 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2370 | { | |
8687b63a | 2371 | __be32 *p; |
1da177e4 LT |
2372 | int status = 0; |
2373 | ||
2374 | *res = 0; | |
2375 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2376 | return -EIO; | |
2377 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2378 | READ_BUF(8); | |
2379 | READ64(*res); | |
2380 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2381 | } | |
3110ff80 | 2382 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2383 | return status; |
2384 | } | |
2385 | ||
2386 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2387 | { | |
8687b63a | 2388 | __be32 *p; |
1da177e4 LT |
2389 | int status = 0; |
2390 | ||
2391 | *res = 0; | |
2392 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2393 | return -EIO; | |
2394 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2395 | READ_BUF(8); | |
2396 | READ64(*res); | |
2397 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2398 | } | |
3110ff80 | 2399 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2400 | return status; |
2401 | } | |
2402 | ||
7aaa0b3b MN |
2403 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2404 | { | |
464ad6b1 | 2405 | u32 n; |
8687b63a | 2406 | __be32 *p; |
7aaa0b3b MN |
2407 | int status = 0; |
2408 | ||
2409 | READ_BUF(4); | |
2410 | READ32(n); | |
33a43f28 AA |
2411 | if (n == 0) |
2412 | goto root_path; | |
7aaa0b3b MN |
2413 | dprintk("path "); |
2414 | path->ncomponents = 0; | |
2415 | while (path->ncomponents < n) { | |
2416 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2417 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2418 | if (unlikely(status != 0)) | |
2419 | goto out_eio; | |
2420 | if (path->ncomponents != n) | |
2421 | dprintk("/"); | |
2422 | dprintk("%s", component->data); | |
2423 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2424 | path->ncomponents++; | |
2425 | else { | |
2426 | dprintk("cannot parse %d components in path\n", n); | |
2427 | goto out_eio; | |
2428 | } | |
2429 | } | |
2430 | out: | |
2431 | dprintk("\n"); | |
2432 | return status; | |
33a43f28 AA |
2433 | root_path: |
2434 | /* a root pathname is sent as a zero component4 */ | |
2435 | path->ncomponents = 1; | |
2436 | path->components[0].len=0; | |
2437 | path->components[0].data=NULL; | |
2438 | dprintk("path /\n"); | |
2439 | goto out; | |
7aaa0b3b MN |
2440 | out_eio: |
2441 | dprintk(" status %d", status); | |
2442 | status = -EIO; | |
2443 | goto out; | |
2444 | } | |
2445 | ||
2446 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2447 | { |
2448 | int n; | |
8687b63a | 2449 | __be32 *p; |
683b57b4 TM |
2450 | int status = -EIO; |
2451 | ||
2452 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2453 | goto out; | |
2454 | status = 0; | |
2455 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2456 | goto out; | |
3110ff80 | 2457 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2458 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2459 | if (unlikely(status != 0)) |
2460 | goto out; | |
2461 | READ_BUF(4); | |
2462 | READ32(n); | |
2463 | if (n <= 0) | |
2464 | goto out_eio; | |
2465 | res->nlocations = 0; | |
2466 | while (res->nlocations < n) { | |
464ad6b1 | 2467 | u32 m; |
7aaa0b3b | 2468 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2469 | |
7aaa0b3b MN |
2470 | READ_BUF(4); |
2471 | READ32(m); | |
7aaa0b3b MN |
2472 | |
2473 | loc->nservers = 0; | |
3110ff80 | 2474 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2475 | while (loc->nservers < m) { |
2476 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2477 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2478 | if (unlikely(status != 0)) | |
2479 | goto out_eio; | |
2480 | dprintk("%s ", server->data); | |
2481 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2482 | loc->nservers++; | |
2483 | else { | |
464ad6b1 CL |
2484 | unsigned int i; |
2485 | dprintk("%s: using first %u of %u servers " | |
2486 | "returned for location %u\n", | |
3110ff80 | 2487 | __func__, |
464ad6b1 CL |
2488 | NFS4_FS_LOCATION_MAXSERVERS, |
2489 | m, res->nlocations); | |
7aaa0b3b | 2490 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2491 | unsigned int len; |
7aaa0b3b MN |
2492 | char *data; |
2493 | status = decode_opaque_inline(xdr, &len, &data); | |
2494 | if (unlikely(status != 0)) | |
2495 | goto out_eio; | |
2496 | } | |
2497 | } | |
2498 | } | |
2499 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2500 | if (unlikely(status != 0)) |
2501 | goto out_eio; | |
7aaa0b3b | 2502 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2503 | res->nlocations++; |
2504 | } | |
409924e4 TM |
2505 | if (res->nlocations != 0) |
2506 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2507 | out: |
3110ff80 | 2508 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2509 | return status; |
2510 | out_eio: | |
2511 | status = -EIO; | |
2512 | goto out; | |
2513 | } | |
2514 | ||
1da177e4 LT |
2515 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2516 | { | |
8687b63a | 2517 | __be32 *p; |
1da177e4 LT |
2518 | int status = 0; |
2519 | ||
2520 | *res = 0; | |
2521 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2522 | return -EIO; | |
2523 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2524 | READ_BUF(8); | |
2525 | READ64(*res); | |
2526 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2527 | } | |
3110ff80 | 2528 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2529 | return status; |
2530 | } | |
2531 | ||
2532 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2533 | { | |
8687b63a | 2534 | __be32 *p; |
1da177e4 LT |
2535 | int status = 0; |
2536 | ||
2537 | *maxlink = 1; | |
2538 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2539 | return -EIO; | |
2540 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2541 | READ_BUF(4); | |
2542 | READ32(*maxlink); | |
2543 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2544 | } | |
3110ff80 | 2545 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2546 | return status; |
2547 | } | |
2548 | ||
2549 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2550 | { | |
8687b63a | 2551 | __be32 *p; |
1da177e4 LT |
2552 | int status = 0; |
2553 | ||
2554 | *maxname = 1024; | |
2555 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2556 | return -EIO; | |
2557 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2558 | READ_BUF(4); | |
2559 | READ32(*maxname); | |
2560 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2561 | } | |
3110ff80 | 2562 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2563 | return status; |
2564 | } | |
2565 | ||
2566 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2567 | { | |
8687b63a | 2568 | __be32 *p; |
1da177e4 LT |
2569 | int status = 0; |
2570 | ||
2571 | *res = 1024; | |
2572 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2573 | return -EIO; | |
2574 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2575 | uint64_t maxread; | |
2576 | READ_BUF(8); | |
2577 | READ64(maxread); | |
2578 | if (maxread > 0x7FFFFFFF) | |
2579 | maxread = 0x7FFFFFFF; | |
2580 | *res = (uint32_t)maxread; | |
2581 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2582 | } | |
3110ff80 | 2583 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2584 | return status; |
2585 | } | |
2586 | ||
2587 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2588 | { | |
8687b63a | 2589 | __be32 *p; |
1da177e4 LT |
2590 | int status = 0; |
2591 | ||
2592 | *res = 1024; | |
2593 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2594 | return -EIO; | |
2595 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2596 | uint64_t maxwrite; | |
2597 | READ_BUF(8); | |
2598 | READ64(maxwrite); | |
2599 | if (maxwrite > 0x7FFFFFFF) | |
2600 | maxwrite = 0x7FFFFFFF; | |
2601 | *res = (uint32_t)maxwrite; | |
2602 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2603 | } | |
3110ff80 | 2604 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2605 | return status; |
2606 | } | |
2607 | ||
bca79478 | 2608 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 2609 | { |
bca79478 | 2610 | uint32_t tmp; |
8687b63a | 2611 | __be32 *p; |
409924e4 | 2612 | int ret = 0; |
1da177e4 LT |
2613 | |
2614 | *mode = 0; | |
2615 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2616 | return -EIO; | |
2617 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2618 | READ_BUF(4); | |
bca79478 TM |
2619 | READ32(tmp); |
2620 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 2621 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 2622 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 2623 | } |
3110ff80 | 2624 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 2625 | return ret; |
1da177e4 LT |
2626 | } |
2627 | ||
2628 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2629 | { | |
8687b63a | 2630 | __be32 *p; |
409924e4 | 2631 | int ret = 0; |
1da177e4 LT |
2632 | |
2633 | *nlink = 1; | |
2634 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2635 | return -EIO; | |
2636 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2637 | READ_BUF(4); | |
2638 | READ32(*nlink); | |
2639 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 2640 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 2641 | } |
3110ff80 | 2642 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 2643 | return ret; |
1da177e4 LT |
2644 | } |
2645 | ||
2e42c3e2 | 2646 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2647 | { |
8687b63a AV |
2648 | uint32_t len; |
2649 | __be32 *p; | |
409924e4 | 2650 | int ret = 0; |
1da177e4 LT |
2651 | |
2652 | *uid = -2; | |
2653 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2654 | return -EIO; | |
2655 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2656 | READ_BUF(4); | |
2657 | READ32(len); | |
2658 | READ_BUF(len); | |
2659 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2660 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
2661 | ret = NFS_ATTR_FATTR_OWNER; | |
2662 | else | |
1da177e4 | 2663 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 2664 | __func__); |
1da177e4 | 2665 | } else |
fe82a183 | 2666 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2667 | __func__, len); |
1da177e4 LT |
2668 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
2669 | } | |
3110ff80 | 2670 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 2671 | return ret; |
1da177e4 LT |
2672 | } |
2673 | ||
2e42c3e2 | 2674 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2675 | { |
8687b63a AV |
2676 | uint32_t len; |
2677 | __be32 *p; | |
409924e4 | 2678 | int ret = 0; |
1da177e4 LT |
2679 | |
2680 | *gid = -2; | |
2681 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2682 | return -EIO; | |
2683 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2684 | READ_BUF(4); | |
2685 | READ32(len); | |
2686 | READ_BUF(len); | |
2687 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2688 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
2689 | ret = NFS_ATTR_FATTR_GROUP; | |
2690 | else | |
1da177e4 | 2691 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 2692 | __func__); |
1da177e4 | 2693 | } else |
fe82a183 | 2694 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2695 | __func__, len); |
1da177e4 LT |
2696 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
2697 | } | |
3110ff80 | 2698 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 2699 | return ret; |
1da177e4 LT |
2700 | } |
2701 | ||
2702 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2703 | { | |
8687b63a AV |
2704 | uint32_t major = 0, minor = 0; |
2705 | __be32 *p; | |
409924e4 | 2706 | int ret = 0; |
1da177e4 LT |
2707 | |
2708 | *rdev = MKDEV(0,0); | |
2709 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2710 | return -EIO; | |
2711 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2712 | dev_t tmp; | |
2713 | ||
2714 | READ_BUF(8); | |
2715 | READ32(major); | |
2716 | READ32(minor); | |
2717 | tmp = MKDEV(major, minor); | |
2718 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2719 | *rdev = tmp; | |
2720 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 2721 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 2722 | } |
3110ff80 | 2723 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 2724 | return ret; |
1da177e4 LT |
2725 | } |
2726 | ||
2727 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2728 | { | |
8687b63a | 2729 | __be32 *p; |
1da177e4 LT |
2730 | int status = 0; |
2731 | ||
2732 | *res = 0; | |
2733 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2734 | return -EIO; | |
2735 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2736 | READ_BUF(8); | |
2737 | READ64(*res); | |
2738 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2739 | } | |
3110ff80 | 2740 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2741 | return status; |
2742 | } | |
2743 | ||
2744 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2745 | { | |
8687b63a | 2746 | __be32 *p; |
1da177e4 LT |
2747 | int status = 0; |
2748 | ||
2749 | *res = 0; | |
2750 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2751 | return -EIO; | |
2752 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2753 | READ_BUF(8); | |
2754 | READ64(*res); | |
2755 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2756 | } | |
3110ff80 | 2757 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2758 | return status; |
2759 | } | |
2760 | ||
2761 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2762 | { | |
8687b63a | 2763 | __be32 *p; |
1da177e4 LT |
2764 | int status = 0; |
2765 | ||
2766 | *res = 0; | |
2767 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2768 | return -EIO; | |
2769 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2770 | READ_BUF(8); | |
2771 | READ64(*res); | |
2772 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2773 | } | |
3110ff80 | 2774 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2775 | return status; |
2776 | } | |
2777 | ||
2778 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2779 | { | |
8687b63a | 2780 | __be32 *p; |
409924e4 | 2781 | int ret = 0; |
1da177e4 LT |
2782 | |
2783 | *used = 0; | |
2784 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2785 | return -EIO; | |
2786 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2787 | READ_BUF(8); | |
2788 | READ64(*used); | |
2789 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 2790 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 2791 | } |
3110ff80 | 2792 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 2793 | (unsigned long long)*used); |
409924e4 | 2794 | return ret; |
1da177e4 LT |
2795 | } |
2796 | ||
2797 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2798 | { | |
8687b63a | 2799 | __be32 *p; |
1da177e4 LT |
2800 | uint64_t sec; |
2801 | uint32_t nsec; | |
2802 | ||
2803 | READ_BUF(12); | |
2804 | READ64(sec); | |
2805 | READ32(nsec); | |
2806 | time->tv_sec = (time_t)sec; | |
2807 | time->tv_nsec = (long)nsec; | |
2808 | return 0; | |
2809 | } | |
2810 | ||
2811 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2812 | { | |
2813 | int status = 0; | |
2814 | ||
2815 | time->tv_sec = 0; | |
2816 | time->tv_nsec = 0; | |
2817 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
2818 | return -EIO; | |
2819 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2820 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2821 | if (status == 0) |
2822 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
2823 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
2824 | } | |
3110ff80 | 2825 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2826 | return status; |
2827 | } | |
2828 | ||
2829 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2830 | { | |
2831 | int status = 0; | |
2832 | ||
2833 | time->tv_sec = 0; | |
2834 | time->tv_nsec = 0; | |
2835 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
2836 | return -EIO; | |
2837 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
2838 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2839 | if (status == 0) |
2840 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
2841 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
2842 | } | |
3110ff80 | 2843 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2844 | return status; |
2845 | } | |
2846 | ||
2847 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2848 | { | |
2849 | int status = 0; | |
2850 | ||
2851 | time->tv_sec = 0; | |
2852 | time->tv_nsec = 0; | |
2853 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
2854 | return -EIO; | |
2855 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
2856 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2857 | if (status == 0) |
2858 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
2859 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
2860 | } | |
3110ff80 | 2861 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2862 | return status; |
2863 | } | |
2864 | ||
8687b63a | 2865 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
2866 | { |
2867 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
2868 | unsigned int nwords = xdr->p - savep; | |
2869 | ||
2870 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
2871 | dprintk("%s: server returned incorrect attribute length: " |
2872 | "%u %c %u\n", | |
3110ff80 | 2873 | __func__, |
1da177e4 LT |
2874 | attrwords << 2, |
2875 | (attrwords < nwords) ? '<' : '>', | |
2876 | nwords << 2); | |
2877 | return -EIO; | |
2878 | } | |
2879 | return 0; | |
2880 | } | |
2881 | ||
2882 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2883 | { | |
8687b63a | 2884 | __be32 *p; |
1da177e4 LT |
2885 | |
2886 | READ_BUF(20); | |
2887 | READ32(cinfo->atomic); | |
2888 | READ64(cinfo->before); | |
2889 | READ64(cinfo->after); | |
2890 | return 0; | |
2891 | } | |
2892 | ||
2893 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
2894 | { | |
8687b63a | 2895 | __be32 *p; |
1da177e4 LT |
2896 | uint32_t supp, acc; |
2897 | int status; | |
2898 | ||
2899 | status = decode_op_hdr(xdr, OP_ACCESS); | |
2900 | if (status) | |
2901 | return status; | |
2902 | READ_BUF(8); | |
2903 | READ32(supp); | |
2904 | READ32(acc); | |
2905 | access->supported = supp; | |
2906 | access->access = acc; | |
2907 | return 0; | |
2908 | } | |
2909 | ||
2910 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
2911 | { | |
8687b63a | 2912 | __be32 *p; |
1da177e4 LT |
2913 | int status; |
2914 | ||
2915 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
2916 | if (status != -EIO) |
2917 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
2918 | if (status) |
2919 | return status; | |
8ae20abd TM |
2920 | READ_BUF(NFS4_STATEID_SIZE); |
2921 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
2922 | return 0; |
2923 | } | |
2924 | ||
2925 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
2926 | { | |
8687b63a | 2927 | __be32 *p; |
1da177e4 LT |
2928 | int status; |
2929 | ||
2930 | status = decode_op_hdr(xdr, OP_COMMIT); | |
2931 | if (status) | |
2932 | return status; | |
2933 | READ_BUF(8); | |
2934 | COPYMEM(res->verf->verifier, 8); | |
2935 | return 0; | |
2936 | } | |
2937 | ||
2938 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2939 | { | |
8687b63a | 2940 | __be32 *p; |
1da177e4 LT |
2941 | uint32_t bmlen; |
2942 | int status; | |
2943 | ||
2944 | status = decode_op_hdr(xdr, OP_CREATE); | |
2945 | if (status) | |
2946 | return status; | |
2947 | if ((status = decode_change_info(xdr, cinfo))) | |
2948 | return status; | |
2949 | READ_BUF(4); | |
2950 | READ32(bmlen); | |
2951 | READ_BUF(bmlen << 2); | |
2952 | return 0; | |
2953 | } | |
2954 | ||
2955 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
2956 | { | |
8687b63a | 2957 | __be32 *savep; |
6c0195a4 | 2958 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
2959 | int status; |
2960 | ||
2961 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
2962 | goto xdr_error; | |
2963 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2964 | goto xdr_error; | |
2965 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2966 | goto xdr_error; | |
2967 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
2968 | goto xdr_error; | |
2969 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
2970 | goto xdr_error; | |
2971 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
2972 | goto xdr_error; | |
2973 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
2974 | goto xdr_error; | |
2975 | status = verify_attr_len(xdr, savep, attrlen); | |
2976 | xdr_error: | |
3110ff80 | 2977 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
2978 | return status; |
2979 | } | |
6c0195a4 | 2980 | |
1da177e4 LT |
2981 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
2982 | { | |
8687b63a | 2983 | __be32 *savep; |
6c0195a4 | 2984 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 2985 | int status; |
6c0195a4 | 2986 | |
1da177e4 LT |
2987 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
2988 | goto xdr_error; | |
2989 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2990 | goto xdr_error; | |
2991 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2992 | goto xdr_error; | |
2993 | ||
2994 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
2995 | goto xdr_error; | |
2996 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
2997 | goto xdr_error; | |
2998 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
2999 | goto xdr_error; | |
3000 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3001 | goto xdr_error; | |
3002 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3003 | goto xdr_error; | |
3004 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3005 | goto xdr_error; | |
3006 | ||
3007 | status = verify_attr_len(xdr, savep, attrlen); | |
3008 | xdr_error: | |
3110ff80 | 3009 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3010 | return status; |
3011 | } | |
3012 | ||
3013 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3014 | { | |
8687b63a | 3015 | __be32 *savep; |
6c0195a4 | 3016 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3017 | int status; |
6c0195a4 | 3018 | |
1da177e4 LT |
3019 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3020 | goto xdr_error; | |
3021 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3022 | goto xdr_error; | |
3023 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3024 | goto xdr_error; | |
3025 | ||
3026 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3027 | goto xdr_error; | |
3028 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3029 | goto xdr_error; | |
3030 | ||
3031 | status = verify_attr_len(xdr, savep, attrlen); | |
3032 | xdr_error: | |
3110ff80 | 3033 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3034 | return status; |
3035 | } | |
3036 | ||
3037 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3038 | { | |
8687b63a | 3039 | __be32 *savep; |
1da177e4 LT |
3040 | uint32_t attrlen, |
3041 | bitmap[2] = {0}, | |
3042 | type; | |
bca79478 TM |
3043 | int status; |
3044 | umode_t fmode = 0; | |
99baf625 | 3045 | uint64_t fileid; |
1da177e4 | 3046 | |
f26c7a78 TM |
3047 | status = decode_op_hdr(xdr, OP_GETATTR); |
3048 | if (status < 0) | |
1da177e4 | 3049 | goto xdr_error; |
f26c7a78 TM |
3050 | |
3051 | status = decode_attr_bitmap(xdr, bitmap); | |
3052 | if (status < 0) | |
1da177e4 LT |
3053 | goto xdr_error; |
3054 | ||
f26c7a78 TM |
3055 | status = decode_attr_length(xdr, &attrlen, &savep); |
3056 | if (status < 0) | |
1da177e4 LT |
3057 | goto xdr_error; |
3058 | ||
3059 | ||
f26c7a78 TM |
3060 | status = decode_attr_type(xdr, bitmap, &type); |
3061 | if (status < 0) | |
1da177e4 | 3062 | goto xdr_error; |
409924e4 TM |
3063 | fattr->mode = 0; |
3064 | if (status != 0) { | |
3065 | fattr->mode |= nfs_type2fmt[type]; | |
3066 | fattr->valid |= status; | |
3067 | } | |
1da177e4 | 3068 | |
f26c7a78 TM |
3069 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3070 | if (status < 0) | |
1da177e4 | 3071 | goto xdr_error; |
409924e4 | 3072 | fattr->valid |= status; |
f26c7a78 TM |
3073 | |
3074 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3075 | if (status < 0) | |
1da177e4 | 3076 | goto xdr_error; |
409924e4 | 3077 | fattr->valid |= status; |
f26c7a78 TM |
3078 | |
3079 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3080 | if (status < 0) | |
1da177e4 | 3081 | goto xdr_error; |
409924e4 | 3082 | fattr->valid |= status; |
f26c7a78 TM |
3083 | |
3084 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3085 | if (status < 0) | |
1da177e4 | 3086 | goto xdr_error; |
409924e4 | 3087 | fattr->valid |= status; |
f26c7a78 TM |
3088 | |
3089 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3090 | struct nfs4_fs_locations, |
f26c7a78 TM |
3091 | fattr)); |
3092 | if (status < 0) | |
683b57b4 | 3093 | goto xdr_error; |
409924e4 | 3094 | fattr->valid |= status; |
f26c7a78 TM |
3095 | |
3096 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3097 | if (status < 0) | |
1da177e4 | 3098 | goto xdr_error; |
409924e4 TM |
3099 | if (status != 0) { |
3100 | fattr->mode |= fmode; | |
3101 | fattr->valid |= status; | |
3102 | } | |
f26c7a78 TM |
3103 | |
3104 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3105 | if (status < 0) | |
1da177e4 | 3106 | goto xdr_error; |
409924e4 | 3107 | fattr->valid |= status; |
f26c7a78 TM |
3108 | |
3109 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3110 | if (status < 0) | |
1da177e4 | 3111 | goto xdr_error; |
409924e4 | 3112 | fattr->valid |= status; |
f26c7a78 TM |
3113 | |
3114 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3115 | if (status < 0) | |
1da177e4 | 3116 | goto xdr_error; |
409924e4 | 3117 | fattr->valid |= status; |
f26c7a78 TM |
3118 | |
3119 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3120 | if (status < 0) | |
1da177e4 | 3121 | goto xdr_error; |
409924e4 | 3122 | fattr->valid |= status; |
f26c7a78 TM |
3123 | |
3124 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3125 | if (status < 0) | |
1da177e4 | 3126 | goto xdr_error; |
409924e4 | 3127 | fattr->valid |= status; |
f26c7a78 TM |
3128 | |
3129 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3130 | if (status < 0) | |
1da177e4 | 3131 | goto xdr_error; |
409924e4 | 3132 | fattr->valid |= status; |
f26c7a78 TM |
3133 | |
3134 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3135 | if (status < 0) | |
1da177e4 | 3136 | goto xdr_error; |
409924e4 | 3137 | fattr->valid |= status; |
f26c7a78 TM |
3138 | |
3139 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3140 | if (status < 0) | |
1da177e4 | 3141 | goto xdr_error; |
409924e4 | 3142 | fattr->valid |= status; |
f26c7a78 TM |
3143 | |
3144 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3145 | if (status < 0) | |
99baf625 | 3146 | goto xdr_error; |
409924e4 | 3147 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3148 | fattr->fileid = fileid; |
409924e4 TM |
3149 | fattr->valid |= status; |
3150 | } | |
f26c7a78 TM |
3151 | |
3152 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3153 | xdr_error: |
3110ff80 | 3154 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3155 | return status; |
3156 | } | |
3157 | ||
3158 | ||
3159 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3160 | { | |
8687b63a | 3161 | __be32 *savep; |
1da177e4 LT |
3162 | uint32_t attrlen, bitmap[2]; |
3163 | int status; | |
3164 | ||
3165 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3166 | goto xdr_error; | |
3167 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3168 | goto xdr_error; | |
3169 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3170 | goto xdr_error; | |
3171 | ||
3172 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3173 | ||
3174 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3175 | goto xdr_error; | |
3176 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3177 | goto xdr_error; | |
3178 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3179 | goto xdr_error; | |
3180 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3181 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3182 | goto xdr_error; | |
3183 | fsinfo->wtpref = fsinfo->wtmax; | |
3184 | ||
3185 | status = verify_attr_len(xdr, savep, attrlen); | |
3186 | xdr_error: | |
3110ff80 | 3187 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3188 | return status; |
3189 | } | |
3190 | ||
3191 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3192 | { | |
8687b63a | 3193 | __be32 *p; |
1da177e4 LT |
3194 | uint32_t len; |
3195 | int status; | |
3196 | ||
9936781d TM |
3197 | /* Zero handle first to allow comparisons */ |
3198 | memset(fh, 0, sizeof(*fh)); | |
3199 | ||
1da177e4 LT |
3200 | status = decode_op_hdr(xdr, OP_GETFH); |
3201 | if (status) | |
3202 | return status; | |
1da177e4 LT |
3203 | |
3204 | READ_BUF(4); | |
3205 | READ32(len); | |
3206 | if (len > NFS4_FHSIZE) | |
3207 | return -EIO; | |
3208 | fh->size = len; | |
3209 | READ_BUF(len); | |
3210 | COPYMEM(fh->data, len); | |
3211 | return 0; | |
3212 | } | |
3213 | ||
3214 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3215 | { | |
3216 | int status; | |
6c0195a4 | 3217 | |
1da177e4 LT |
3218 | status = decode_op_hdr(xdr, OP_LINK); |
3219 | if (status) | |
3220 | return status; | |
3221 | return decode_change_info(xdr, cinfo); | |
3222 | } | |
3223 | ||
3224 | /* | |
3225 | * We create the owner, so we know a proper owner.id length is 4. | |
3226 | */ | |
911d1aaf | 3227 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3228 | { |
911d1aaf | 3229 | uint64_t offset, length, clientid; |
8687b63a | 3230 | __be32 *p; |
911d1aaf | 3231 | uint32_t namelen, type; |
1da177e4 LT |
3232 | |
3233 | READ_BUF(32); | |
911d1aaf TM |
3234 | READ64(offset); |
3235 | READ64(length); | |
3236 | READ32(type); | |
3237 | if (fl != NULL) { | |
3238 | fl->fl_start = (loff_t)offset; | |
3239 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3240 | if (length == ~(uint64_t)0) | |
3241 | fl->fl_end = OFFSET_MAX; | |
3242 | fl->fl_type = F_WRLCK; | |
3243 | if (type & 1) | |
3244 | fl->fl_type = F_RDLCK; | |
3245 | fl->fl_pid = 0; | |
3246 | } | |
3247 | READ64(clientid); | |
1da177e4 LT |
3248 | READ32(namelen); |
3249 | READ_BUF(namelen); | |
1da177e4 LT |
3250 | return -NFS4ERR_DENIED; |
3251 | } | |
3252 | ||
911d1aaf | 3253 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3254 | { |
8687b63a | 3255 | __be32 *p; |
1da177e4 LT |
3256 | int status; |
3257 | ||
3258 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3259 | if (status == -EIO) |
3260 | goto out; | |
1da177e4 | 3261 | if (status == 0) { |
8ae20abd TM |
3262 | READ_BUF(NFS4_STATEID_SIZE); |
3263 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3264 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3265 | status = decode_lock_denied(xdr, NULL); |
3266 | if (res->open_seqid != NULL) | |
3267 | nfs_increment_open_seqid(status, res->open_seqid); | |
3268 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3269 | out: | |
1da177e4 LT |
3270 | return status; |
3271 | } | |
3272 | ||
911d1aaf | 3273 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3274 | { |
3275 | int status; | |
3276 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3277 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3278 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3279 | return status; |
3280 | } | |
3281 | ||
911d1aaf | 3282 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3283 | { |
8687b63a | 3284 | __be32 *p; |
1da177e4 LT |
3285 | int status; |
3286 | ||
3287 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3288 | if (status != -EIO) |
3289 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3290 | if (status == 0) { |
8ae20abd TM |
3291 | READ_BUF(NFS4_STATEID_SIZE); |
3292 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3293 | } |
3294 | return status; | |
3295 | } | |
3296 | ||
3297 | static int decode_lookup(struct xdr_stream *xdr) | |
3298 | { | |
3299 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3300 | } | |
3301 | ||
3302 | /* This is too sick! */ | |
3303 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3304 | { | |
05d564fe | 3305 | __be32 *p; |
1da177e4 LT |
3306 | uint32_t limit_type, nblocks, blocksize; |
3307 | ||
3308 | READ_BUF(12); | |
3309 | READ32(limit_type); | |
3310 | switch (limit_type) { | |
05d564fe AA |
3311 | case 1: |
3312 | READ64(*maxsize); | |
3313 | break; | |
3314 | case 2: | |
3315 | READ32(nblocks); | |
3316 | READ32(blocksize); | |
3317 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3318 | } |
3319 | return 0; | |
3320 | } | |
3321 | ||
3322 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3323 | { | |
05d564fe AA |
3324 | __be32 *p; |
3325 | uint32_t delegation_type; | |
1da177e4 LT |
3326 | |
3327 | READ_BUF(4); | |
3328 | READ32(delegation_type); | |
3329 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3330 | res->delegation_type = 0; | |
3331 | return 0; | |
3332 | } | |
8ae20abd TM |
3333 | READ_BUF(NFS4_STATEID_SIZE+4); |
3334 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3335 | READ32(res->do_recall); |
05d564fe | 3336 | |
1da177e4 | 3337 | switch (delegation_type) { |
05d564fe AA |
3338 | case NFS4_OPEN_DELEGATE_READ: |
3339 | res->delegation_type = FMODE_READ; | |
3340 | break; | |
3341 | case NFS4_OPEN_DELEGATE_WRITE: | |
3342 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3343 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3344 | return -EIO; |
3345 | } | |
7539bbab | 3346 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3347 | } |
3348 | ||
3349 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3350 | { | |
05d564fe | 3351 | __be32 *p; |
aa53ed54 | 3352 | uint32_t savewords, bmlen, i; |
05d564fe | 3353 | int status; |
1da177e4 | 3354 | |
05d564fe | 3355 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3356 | if (status != -EIO) |
3357 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3358 | if (status) |
3359 | return status; | |
3360 | READ_BUF(NFS4_STATEID_SIZE); | |
3361 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3362 | |
05d564fe | 3363 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3364 | |
05d564fe AA |
3365 | READ_BUF(8); |
3366 | READ32(res->rflags); | |
3367 | READ32(bmlen); | |
3368 | if (bmlen > 10) | |
3369 | goto xdr_error; | |
1da177e4 | 3370 | |
05d564fe | 3371 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3372 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3373 | for (i = 0; i < savewords; ++i) | |
3374 | READ32(res->attrset[i]); | |
3375 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3376 | res->attrset[i] = 0; | |
3377 | ||
1da177e4 LT |
3378 | return decode_delegation(xdr, res); |
3379 | xdr_error: | |
3110ff80 | 3380 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3381 | return -EIO; |
3382 | } | |
3383 | ||
3384 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3385 | { | |
05d564fe | 3386 | __be32 *p; |
1da177e4 LT |
3387 | int status; |
3388 | ||
05d564fe | 3389 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3390 | if (status != -EIO) |
3391 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3392 | if (status) |
3393 | return status; | |
3394 | READ_BUF(NFS4_STATEID_SIZE); | |
3395 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3396 | return 0; | |
1da177e4 LT |
3397 | } |
3398 | ||
3399 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3400 | { | |
8687b63a | 3401 | __be32 *p; |
1da177e4 LT |
3402 | int status; |
3403 | ||
3404 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3405 | if (status != -EIO) |
3406 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3407 | if (status) |
3408 | return status; | |
8ae20abd TM |
3409 | READ_BUF(NFS4_STATEID_SIZE); |
3410 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3411 | return 0; |
3412 | } | |
3413 | ||
3414 | static int decode_putfh(struct xdr_stream *xdr) | |
3415 | { | |
3416 | return decode_op_hdr(xdr, OP_PUTFH); | |
3417 | } | |
3418 | ||
3419 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3420 | { | |
3421 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3422 | } | |
3423 | ||
3424 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3425 | { | |
3426 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3427 | __be32 *p; |
1da177e4 LT |
3428 | uint32_t count, eof, recvd, hdrlen; |
3429 | int status; | |
3430 | ||
3431 | status = decode_op_hdr(xdr, OP_READ); | |
3432 | if (status) | |
3433 | return status; | |
3434 | READ_BUF(8); | |
3435 | READ32(eof); | |
3436 | READ32(count); | |
3437 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3438 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3439 | if (count > recvd) { | |
fe82a183 | 3440 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3441 | "count %u > recvd %u\n", count, recvd); |
3442 | count = recvd; | |
3443 | eof = 0; | |
3444 | } | |
3445 | xdr_read_pages(xdr, count); | |
3446 | res->eof = eof; | |
3447 | res->count = count; | |
3448 | return 0; | |
3449 | } | |
3450 | ||
3451 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3452 | { | |
3453 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3454 | struct page *page = *rcvbuf->pages; | |
3455 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3456 | size_t hdrlen; |
3457 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3458 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3459 | unsigned int nr = 0; |
bcecff77 | 3460 | int status; |
1da177e4 LT |
3461 | |
3462 | status = decode_op_hdr(xdr, OP_READDIR); | |
3463 | if (status) | |
3464 | return status; | |
3465 | READ_BUF(8); | |
3466 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3467 | dprintk("%s: verifier = %08x:%08x\n", |
3468 | __func__, | |
eadf4598 TM |
3469 | ((u32 *)readdir->verifier.data)[0], |
3470 | ((u32 *)readdir->verifier.data)[1]); | |
3471 | ||
1da177e4 LT |
3472 | |
3473 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3474 | recvd = rcvbuf->len - hdrlen; | |
3475 | if (pglen > recvd) | |
3476 | pglen = recvd; | |
3477 | xdr_read_pages(xdr, pglen); | |
3478 | ||
3479 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3480 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3481 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3482 | entry = p; |
7bda2cdf JL |
3483 | |
3484 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3485 | if ((entry + 1) > end) | |
3486 | goto short_pkt; | |
3487 | ||
3488 | for (; *p++; nr++) { | |
bcecff77 | 3489 | u32 len, attrlen, xlen; |
e8896495 | 3490 | if (end - p < 3) |
1da177e4 | 3491 | goto short_pkt; |
eadf4598 | 3492 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3493 | p += 2; /* cookie */ |
3494 | len = ntohl(*p++); /* filename length */ | |
3495 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3496 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3497 | len); | |
1da177e4 LT |
3498 | goto err_unmap; |
3499 | } | |
e8896495 DH |
3500 | xlen = XDR_QUADLEN(len); |
3501 | if (end - p < xlen + 1) | |
1da177e4 | 3502 | goto short_pkt; |
e8896495 DH |
3503 | dprintk("filename = %*s\n", len, (char *)p); |
3504 | p += xlen; | |
1da177e4 | 3505 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3506 | if (end - p < len + 1) |
1da177e4 | 3507 | goto short_pkt; |
e8896495 | 3508 | p += len; |
1da177e4 | 3509 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3510 | if (end - p < attrlen + 2) |
1da177e4 | 3511 | goto short_pkt; |
e8896495 | 3512 | p += attrlen; /* attributes */ |
1da177e4 LT |
3513 | entry = p; |
3514 | } | |
7bda2cdf JL |
3515 | /* |
3516 | * Apparently some server sends responses that are a valid size, but | |
3517 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3518 | * those, just set the EOF marker. | |
3519 | */ | |
3520 | if (!nr && entry[1] == 0) { | |
3521 | dprintk("NFS: readdir reply truncated!\n"); | |
3522 | entry[1] = 1; | |
3523 | } | |
6c0195a4 | 3524 | out: |
1da177e4 LT |
3525 | kunmap_atomic(kaddr, KM_USER0); |
3526 | return 0; | |
3527 | short_pkt: | |
7bda2cdf JL |
3528 | /* |
3529 | * When we get a short packet there are 2 possibilities. We can | |
3530 | * return an error, or fix up the response to look like a valid | |
3531 | * response and return what we have so far. If there are no | |
3532 | * entries and the packet was short, then return -EIO. If there | |
3533 | * are valid entries in the response, return them and pretend that | |
3534 | * the call was successful, but incomplete. The caller can retry the | |
3535 | * readdir starting at the last cookie. | |
3536 | */ | |
3110ff80 | 3537 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3538 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3539 | if (nr) |
3540 | goto out; | |
1da177e4 LT |
3541 | err_unmap: |
3542 | kunmap_atomic(kaddr, KM_USER0); | |
3543 | return -errno_NFSERR_IO; | |
3544 | } | |
3545 | ||
3546 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3547 | { | |
3548 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3549 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3550 | size_t hdrlen; |
3551 | u32 len, recvd; | |
8687b63a | 3552 | __be32 *p; |
1da177e4 LT |
3553 | char *kaddr; |
3554 | int status; | |
3555 | ||
3556 | status = decode_op_hdr(xdr, OP_READLINK); | |
3557 | if (status) | |
3558 | return status; | |
3559 | ||
3560 | /* Convert length of symlink */ | |
3561 | READ_BUF(4); | |
3562 | READ32(len); | |
3563 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3564 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3565 | return -ENAMETOOLONG; |
3566 | } | |
3567 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3568 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3569 | if (recvd < len) { | |
fe82a183 | 3570 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3571 | "count %u > recvd %u\n", len, recvd); |
3572 | return -EIO; | |
3573 | } | |
3574 | xdr_read_pages(xdr, len); | |
3575 | /* | |
3576 | * The XDR encode routine has set things up so that | |
3577 | * the link text will be copied directly into the | |
3578 | * buffer. We just have to do overflow-checking, | |
3579 | * and and null-terminate the text (the VFS expects | |
3580 | * null-termination). | |
3581 | */ | |
3582 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3583 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3584 | kunmap_atomic(kaddr, KM_USER0); | |
3585 | return 0; | |
3586 | } | |
3587 | ||
3588 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3589 | { | |
3590 | int status; | |
3591 | ||
3592 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3593 | if (status) | |
3594 | goto out; | |
3595 | status = decode_change_info(xdr, cinfo); | |
3596 | out: | |
3597 | return status; | |
3598 | } | |
3599 | ||
3600 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3601 | struct nfs4_change_info *new_cinfo) | |
3602 | { | |
3603 | int status; | |
3604 | ||
3605 | status = decode_op_hdr(xdr, OP_RENAME); | |
3606 | if (status) | |
3607 | goto out; | |
3608 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3609 | goto out; | |
3610 | status = decode_change_info(xdr, new_cinfo); | |
3611 | out: | |
3612 | return status; | |
3613 | } | |
3614 | ||
3615 | static int decode_renew(struct xdr_stream *xdr) | |
3616 | { | |
3617 | return decode_op_hdr(xdr, OP_RENEW); | |
3618 | } | |
3619 | ||
56ae19f3 TM |
3620 | static int |
3621 | decode_restorefh(struct xdr_stream *xdr) | |
3622 | { | |
3623 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3624 | } | |
3625 | ||
029d105e BF |
3626 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3627 | size_t *acl_len) | |
3628 | { | |
8687b63a | 3629 | __be32 *savep; |
029d105e BF |
3630 | uint32_t attrlen, |
3631 | bitmap[2] = {0}; | |
3632 | struct kvec *iov = req->rq_rcv_buf.head; | |
3633 | int status; | |
3634 | ||
3635 | *acl_len = 0; | |
3636 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3637 | goto out; | |
3638 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3639 | goto out; | |
3640 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3641 | goto out; | |
3642 | ||
3643 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3644 | return -EIO; | |
3645 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
3646 | size_t hdrlen; |
3647 | u32 recvd; | |
029d105e BF |
3648 | |
3649 | /* We ignore &savep and don't do consistency checks on | |
3650 | * the attr length. Let userspace figure it out.... */ | |
3651 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3652 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3653 | if (attrlen > recvd) { | |
fe82a183 | 3654 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
3655 | " acl reply: attrlen %u > recvd %u\n", |
3656 | attrlen, recvd); | |
3657 | return -EINVAL; | |
3658 | } | |
c04871e6 | 3659 | xdr_read_pages(xdr, attrlen); |
029d105e | 3660 | *acl_len = attrlen; |
8c233cf9 BF |
3661 | } else |
3662 | status = -EOPNOTSUPP; | |
029d105e BF |
3663 | |
3664 | out: | |
3665 | return status; | |
3666 | } | |
3667 | ||
1da177e4 LT |
3668 | static int |
3669 | decode_savefh(struct xdr_stream *xdr) | |
3670 | { | |
3671 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3672 | } | |
3673 | ||
9e9ecc03 | 3674 | static int decode_setattr(struct xdr_stream *xdr) |
1da177e4 | 3675 | { |
8687b63a | 3676 | __be32 *p; |
1da177e4 LT |
3677 | uint32_t bmlen; |
3678 | int status; | |
3679 | ||
1da177e4 LT |
3680 | status = decode_op_hdr(xdr, OP_SETATTR); |
3681 | if (status) | |
3682 | return status; | |
3683 | READ_BUF(4); | |
3684 | READ32(bmlen); | |
3685 | READ_BUF(bmlen << 2); | |
3686 | return 0; | |
3687 | } | |
3688 | ||
adfa6f98 | 3689 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3690 | { |
8687b63a | 3691 | __be32 *p; |
1da177e4 LT |
3692 | uint32_t opnum; |
3693 | int32_t nfserr; | |
3694 | ||
3695 | READ_BUF(8); | |
3696 | READ32(opnum); | |
3697 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 3698 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 3699 | " %d\n", opnum); |
1da177e4 LT |
3700 | return -EIO; |
3701 | } | |
3702 | READ32(nfserr); | |
3703 | if (nfserr == NFS_OK) { | |
8ae20abd | 3704 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3705 | READ64(clp->cl_clientid); |
8ae20abd | 3706 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3707 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3708 | uint32_t len; | |
3709 | ||
3710 | /* skip netid string */ | |
3711 | READ_BUF(4); | |
3712 | READ32(len); | |
3713 | READ_BUF(len); | |
3714 | ||
3715 | /* skip uaddr string */ | |
3716 | READ_BUF(4); | |
3717 | READ32(len); | |
3718 | READ_BUF(len); | |
3719 | return -NFSERR_CLID_INUSE; | |
3720 | } else | |
856dff3d | 3721 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3722 | |
3723 | return 0; | |
3724 | } | |
3725 | ||
3726 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3727 | { | |
3728 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3729 | } | |
3730 | ||
3731 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3732 | { | |
8687b63a | 3733 | __be32 *p; |
1da177e4 LT |
3734 | int status; |
3735 | ||
3736 | status = decode_op_hdr(xdr, OP_WRITE); | |
3737 | if (status) | |
3738 | return status; | |
3739 | ||
3740 | READ_BUF(16); | |
3741 | READ32(res->count); | |
3742 | READ32(res->verf->committed); | |
3743 | COPYMEM(res->verf->verifier, 8); | |
3744 | return 0; | |
3745 | } | |
3746 | ||
3747 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3748 | { | |
3749 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3750 | } | |
3751 | ||
49c2559e BH |
3752 | /* |
3753 | * END OF "GENERIC" DECODE ROUTINES. | |
3754 | */ | |
3755 | ||
1da177e4 LT |
3756 | /* |
3757 | * Decode OPEN_DOWNGRADE response | |
3758 | */ | |
8687b63a | 3759 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 3760 | { |
05d564fe AA |
3761 | struct xdr_stream xdr; |
3762 | struct compound_hdr hdr; | |
3763 | int status; | |
3764 | ||
3765 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3766 | status = decode_compound_hdr(&xdr, &hdr); | |
3767 | if (status) | |
3768 | goto out; | |
3769 | status = decode_putfh(&xdr); | |
3770 | if (status) | |
3771 | goto out; | |
3772 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3773 | if (status != 0) |
3774 | goto out; | |
3775 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 3776 | out: |
05d564fe | 3777 | return status; |
1da177e4 LT |
3778 | } |
3779 | ||
1da177e4 LT |
3780 | /* |
3781 | * Decode ACCESS response | |
3782 | */ | |
8687b63a | 3783 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3784 | { |
3785 | struct xdr_stream xdr; | |
3786 | struct compound_hdr hdr; | |
3787 | int status; | |
6c0195a4 | 3788 | |
1da177e4 LT |
3789 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3790 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3791 | goto out; | |
76b32999 TM |
3792 | status = decode_putfh(&xdr); |
3793 | if (status != 0) | |
3794 | goto out; | |
3795 | status = decode_access(&xdr, res); | |
3796 | if (status != 0) | |
3797 | goto out; | |
3798 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3799 | out: |
3800 | return status; | |
3801 | } | |
3802 | ||
3803 | /* | |
3804 | * Decode LOOKUP response | |
3805 | */ | |
8687b63a | 3806 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3807 | { |
3808 | struct xdr_stream xdr; | |
3809 | struct compound_hdr hdr; | |
3810 | int status; | |
6c0195a4 | 3811 | |
1da177e4 LT |
3812 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3813 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3814 | goto out; | |
3815 | if ((status = decode_putfh(&xdr)) != 0) | |
3816 | goto out; | |
3817 | if ((status = decode_lookup(&xdr)) != 0) | |
3818 | goto out; | |
3819 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3820 | goto out; | |
3821 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3822 | out: | |
3823 | return status; | |
3824 | } | |
3825 | ||
3826 | /* | |
3827 | * Decode LOOKUP_ROOT response | |
3828 | */ | |
8687b63a | 3829 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3830 | { |
3831 | struct xdr_stream xdr; | |
3832 | struct compound_hdr hdr; | |
3833 | int status; | |
6c0195a4 | 3834 | |
1da177e4 LT |
3835 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3836 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3837 | goto out; | |
3838 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3839 | goto out; | |
3840 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3841 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3842 | out: | |
3843 | return status; | |
3844 | } | |
3845 | ||
3846 | /* | |
3847 | * Decode REMOVE response | |
3848 | */ | |
4fdc17b2 | 3849 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
3850 | { |
3851 | struct xdr_stream xdr; | |
3852 | struct compound_hdr hdr; | |
3853 | int status; | |
6c0195a4 | 3854 | |
1da177e4 LT |
3855 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3856 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3857 | goto out; | |
16e42959 TM |
3858 | if ((status = decode_putfh(&xdr)) != 0) |
3859 | goto out; | |
3860 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3861 | goto out; | |
4fdc17b2 | 3862 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
3863 | out: |
3864 | return status; | |
3865 | } | |
3866 | ||
3867 | /* | |
3868 | * Decode RENAME response | |
3869 | */ | |
8687b63a | 3870 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3871 | { |
3872 | struct xdr_stream xdr; | |
3873 | struct compound_hdr hdr; | |
3874 | int status; | |
6c0195a4 | 3875 | |
1da177e4 LT |
3876 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3877 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3878 | goto out; | |
3879 | if ((status = decode_putfh(&xdr)) != 0) | |
3880 | goto out; | |
3881 | if ((status = decode_savefh(&xdr)) != 0) | |
3882 | goto out; | |
3883 | if ((status = decode_putfh(&xdr)) != 0) | |
3884 | goto out; | |
6caf2c82 TM |
3885 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
3886 | goto out; | |
3887 | /* Current FH is target directory */ | |
3888 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
3889 | goto out; | |
3890 | if ((status = decode_restorefh(&xdr)) != 0) | |
3891 | goto out; | |
3892 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
3893 | out: |
3894 | return status; | |
3895 | } | |
3896 | ||
3897 | /* | |
3898 | * Decode LINK response | |
3899 | */ | |
8687b63a | 3900 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
3901 | { |
3902 | struct xdr_stream xdr; | |
3903 | struct compound_hdr hdr; | |
3904 | int status; | |
6c0195a4 | 3905 | |
1da177e4 LT |
3906 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3907 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3908 | goto out; | |
3909 | if ((status = decode_putfh(&xdr)) != 0) | |
3910 | goto out; | |
3911 | if ((status = decode_savefh(&xdr)) != 0) | |
3912 | goto out; | |
3913 | if ((status = decode_putfh(&xdr)) != 0) | |
3914 | goto out; | |
91ba2eee TM |
3915 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
3916 | goto out; | |
3917 | /* | |
3918 | * Note order: OP_LINK leaves the directory as the current | |
3919 | * filehandle. | |
3920 | */ | |
3921 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
3922 | goto out; | |
3923 | if ((status = decode_restorefh(&xdr)) != 0) | |
3924 | goto out; | |
3925 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3926 | out: |
3927 | return status; | |
3928 | } | |
3929 | ||
3930 | /* | |
3931 | * Decode CREATE response | |
3932 | */ | |
8687b63a | 3933 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3934 | { |
3935 | struct xdr_stream xdr; | |
3936 | struct compound_hdr hdr; | |
3937 | int status; | |
6c0195a4 | 3938 | |
1da177e4 LT |
3939 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3940 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3941 | goto out; | |
3942 | if ((status = decode_putfh(&xdr)) != 0) | |
3943 | goto out; | |
56ae19f3 TM |
3944 | if ((status = decode_savefh(&xdr)) != 0) |
3945 | goto out; | |
1da177e4 LT |
3946 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
3947 | goto out; | |
3948 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3949 | goto out; | |
56ae19f3 TM |
3950 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
3951 | goto out; | |
3952 | if ((status = decode_restorefh(&xdr)) != 0) | |
3953 | goto out; | |
3954 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
3955 | out: |
3956 | return status; | |
3957 | } | |
3958 | ||
3959 | /* | |
3960 | * Decode SYMLINK response | |
3961 | */ | |
8687b63a | 3962 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3963 | { |
3964 | return nfs4_xdr_dec_create(rqstp, p, res); | |
3965 | } | |
3966 | ||
3967 | /* | |
3968 | * Decode GETATTR response | |
3969 | */ | |
8687b63a | 3970 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
3971 | { |
3972 | struct xdr_stream xdr; | |
3973 | struct compound_hdr hdr; | |
3974 | int status; | |
6c0195a4 | 3975 | |
1da177e4 LT |
3976 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3977 | status = decode_compound_hdr(&xdr, &hdr); | |
3978 | if (status) | |
3979 | goto out; | |
3980 | status = decode_putfh(&xdr); | |
3981 | if (status) | |
3982 | goto out; | |
3983 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3984 | out: | |
3985 | return status; | |
1da177e4 LT |
3986 | } |
3987 | ||
23ec6965 BF |
3988 | /* |
3989 | * Encode an SETACL request | |
3990 | */ | |
3991 | static int | |
8687b63a | 3992 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 3993 | { |
05d564fe AA |
3994 | struct xdr_stream xdr; |
3995 | struct compound_hdr hdr = { | |
d017931c | 3996 | .nops = 0, |
05d564fe AA |
3997 | }; |
3998 | int status; | |
3999 | ||
4000 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
0c4e8c18 | 4001 | encode_compound_hdr(&xdr, req, &hdr); |
cf8cdbe5 | 4002 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 4003 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 4004 | encode_nops(&hdr); |
05d564fe | 4005 | return status; |
23ec6965 | 4006 | } |
05d564fe | 4007 | |
23ec6965 BF |
4008 | /* |
4009 | * Decode SETACL response | |
4010 | */ | |
4011 | static int | |
73c403a9 BH |
4012 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, |
4013 | struct nfs_setaclres *res) | |
23ec6965 BF |
4014 | { |
4015 | struct xdr_stream xdr; | |
4016 | struct compound_hdr hdr; | |
4017 | int status; | |
4018 | ||
4019 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4020 | status = decode_compound_hdr(&xdr, &hdr); | |
4021 | if (status) | |
4022 | goto out; | |
4023 | status = decode_putfh(&xdr); | |
4024 | if (status) | |
4025 | goto out; | |
9e9ecc03 | 4026 | status = decode_setattr(&xdr); |
23ec6965 BF |
4027 | out: |
4028 | return status; | |
4029 | } | |
1da177e4 | 4030 | |
029d105e BF |
4031 | /* |
4032 | * Decode GETACL response | |
4033 | */ | |
4034 | static int | |
663c79b3 BH |
4035 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, |
4036 | struct nfs_getaclres *res) | |
029d105e BF |
4037 | { |
4038 | struct xdr_stream xdr; | |
4039 | struct compound_hdr hdr; | |
4040 | int status; | |
4041 | ||
4042 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4043 | status = decode_compound_hdr(&xdr, &hdr); | |
4044 | if (status) | |
4045 | goto out; | |
4046 | status = decode_putfh(&xdr); | |
4047 | if (status) | |
4048 | goto out; | |
663c79b3 | 4049 | status = decode_getacl(&xdr, rqstp, &res->acl_len); |
029d105e BF |
4050 | |
4051 | out: | |
4052 | return status; | |
4053 | } | |
4054 | ||
1da177e4 LT |
4055 | /* |
4056 | * Decode CLOSE response | |
4057 | */ | |
8687b63a | 4058 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4059 | { |
05d564fe AA |
4060 | struct xdr_stream xdr; |
4061 | struct compound_hdr hdr; | |
4062 | int status; | |
4063 | ||
4064 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4065 | status = decode_compound_hdr(&xdr, &hdr); | |
4066 | if (status) | |
4067 | goto out; | |
4068 | status = decode_putfh(&xdr); | |
4069 | if (status) | |
4070 | goto out; | |
4071 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4072 | if (status != 0) |
4073 | goto out; | |
4074 | /* | |
4075 | * Note: Server may do delete on close for this file | |
4076 | * in which case the getattr call will fail with | |
4077 | * an ESTALE error. Shouldn't be a problem, | |
4078 | * though, since fattr->valid will remain unset. | |
4079 | */ | |
4080 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4081 | out: |
05d564fe | 4082 | return status; |
1da177e4 LT |
4083 | } |
4084 | ||
4085 | /* | |
4086 | * Decode OPEN response | |
4087 | */ | |
8687b63a | 4088 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4089 | { |
05d564fe AA |
4090 | struct xdr_stream xdr; |
4091 | struct compound_hdr hdr; | |
4092 | int status; | |
4093 | ||
4094 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4095 | status = decode_compound_hdr(&xdr, &hdr); | |
4096 | if (status) | |
4097 | goto out; | |
4098 | status = decode_putfh(&xdr); | |
4099 | if (status) | |
4100 | goto out; | |
4101 | status = decode_savefh(&xdr); | |
4102 | if (status) | |
4103 | goto out; | |
4104 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4105 | if (status) |
4106 | goto out; | |
9936781d | 4107 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4108 | goto out; |
56ae19f3 TM |
4109 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4110 | goto out; | |
365c8f58 | 4111 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4112 | goto out; |
4113 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4114 | out: |
05d564fe | 4115 | return status; |
1da177e4 LT |
4116 | } |
4117 | ||
4118 | /* | |
4119 | * Decode OPEN_CONFIRM response | |
4120 | */ | |
8687b63a | 4121 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4122 | { |
05d564fe AA |
4123 | struct xdr_stream xdr; |
4124 | struct compound_hdr hdr; | |
4125 | int status; | |
4126 | ||
4127 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4128 | status = decode_compound_hdr(&xdr, &hdr); | |
4129 | if (status) | |
4130 | goto out; | |
4131 | status = decode_putfh(&xdr); | |
4132 | if (status) | |
4133 | goto out; | |
4134 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4135 | out: |
05d564fe | 4136 | return status; |
1da177e4 LT |
4137 | } |
4138 | ||
4139 | /* | |
4140 | * Decode OPEN response | |
4141 | */ | |
8687b63a | 4142 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4143 | { |
05d564fe AA |
4144 | struct xdr_stream xdr; |
4145 | struct compound_hdr hdr; | |
4146 | int status; | |
4147 | ||
4148 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4149 | status = decode_compound_hdr(&xdr, &hdr); | |
4150 | if (status) | |
4151 | goto out; | |
4152 | status = decode_putfh(&xdr); | |
4153 | if (status) | |
4154 | goto out; | |
4155 | status = decode_open(&xdr, res); | |
4156 | if (status) | |
4157 | goto out; | |
864472e9 | 4158 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4159 | out: |
05d564fe | 4160 | return status; |
1da177e4 LT |
4161 | } |
4162 | ||
4163 | /* | |
4164 | * Decode SETATTR response | |
4165 | */ | |
8687b63a | 4166 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4167 | { |
05d564fe AA |
4168 | struct xdr_stream xdr; |
4169 | struct compound_hdr hdr; | |
4170 | int status; | |
4171 | ||
4172 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4173 | status = decode_compound_hdr(&xdr, &hdr); | |
4174 | if (status) | |
4175 | goto out; | |
4176 | status = decode_putfh(&xdr); | |
4177 | if (status) | |
4178 | goto out; | |
9e9ecc03 | 4179 | status = decode_setattr(&xdr); |
05d564fe AA |
4180 | if (status) |
4181 | goto out; | |
78f945f8 | 4182 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4183 | out: |
05d564fe | 4184 | return status; |
1da177e4 LT |
4185 | } |
4186 | ||
4187 | /* | |
4188 | * Decode LOCK response | |
4189 | */ | |
8687b63a | 4190 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4191 | { |
4192 | struct xdr_stream xdr; | |
4193 | struct compound_hdr hdr; | |
4194 | int status; | |
4195 | ||
4196 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4197 | status = decode_compound_hdr(&xdr, &hdr); | |
4198 | if (status) | |
4199 | goto out; | |
4200 | status = decode_putfh(&xdr); | |
4201 | if (status) | |
4202 | goto out; | |
4203 | status = decode_lock(&xdr, res); | |
4204 | out: | |
4205 | return status; | |
4206 | } | |
4207 | ||
4208 | /* | |
4209 | * Decode LOCKT response | |
4210 | */ | |
8687b63a | 4211 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4212 | { |
4213 | struct xdr_stream xdr; | |
4214 | struct compound_hdr hdr; | |
4215 | int status; | |
4216 | ||
4217 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4218 | status = decode_compound_hdr(&xdr, &hdr); | |
4219 | if (status) | |
4220 | goto out; | |
4221 | status = decode_putfh(&xdr); | |
4222 | if (status) | |
4223 | goto out; | |
4224 | status = decode_lockt(&xdr, res); | |
4225 | out: | |
4226 | return status; | |
4227 | } | |
4228 | ||
4229 | /* | |
4230 | * Decode LOCKU response | |
4231 | */ | |
8687b63a | 4232 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4233 | { |
4234 | struct xdr_stream xdr; | |
4235 | struct compound_hdr hdr; | |
4236 | int status; | |
4237 | ||
4238 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4239 | status = decode_compound_hdr(&xdr, &hdr); | |
4240 | if (status) | |
4241 | goto out; | |
4242 | status = decode_putfh(&xdr); | |
4243 | if (status) | |
4244 | goto out; | |
4245 | status = decode_locku(&xdr, res); | |
4246 | out: | |
4247 | return status; | |
4248 | } | |
4249 | ||
4250 | /* | |
4251 | * Decode READLINK response | |
4252 | */ | |
f50c7000 BH |
4253 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, |
4254 | struct nfs4_readlink_res *res) | |
1da177e4 LT |
4255 | { |
4256 | struct xdr_stream xdr; | |
4257 | struct compound_hdr hdr; | |
4258 | int status; | |
4259 | ||
4260 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4261 | status = decode_compound_hdr(&xdr, &hdr); | |
4262 | if (status) | |
4263 | goto out; | |
4264 | status = decode_putfh(&xdr); | |
4265 | if (status) | |
4266 | goto out; | |
4267 | status = decode_readlink(&xdr, rqstp); | |
4268 | out: | |
4269 | return status; | |
4270 | } | |
4271 | ||
4272 | /* | |
4273 | * Decode READDIR response | |
4274 | */ | |
8687b63a | 4275 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4276 | { |
4277 | struct xdr_stream xdr; | |
4278 | struct compound_hdr hdr; | |
4279 | int status; | |
4280 | ||
4281 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4282 | status = decode_compound_hdr(&xdr, &hdr); | |
4283 | if (status) | |
4284 | goto out; | |
4285 | status = decode_putfh(&xdr); | |
4286 | if (status) | |
4287 | goto out; | |
4288 | status = decode_readdir(&xdr, rqstp, res); | |
4289 | out: | |
4290 | return status; | |
4291 | } | |
4292 | ||
4293 | /* | |
4294 | * Decode Read response | |
4295 | */ | |
8687b63a | 4296 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4297 | { |
4298 | struct xdr_stream xdr; | |
4299 | struct compound_hdr hdr; | |
4300 | int status; | |
4301 | ||
4302 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4303 | status = decode_compound_hdr(&xdr, &hdr); | |
4304 | if (status) | |
4305 | goto out; | |
4306 | status = decode_putfh(&xdr); | |
4307 | if (status) | |
4308 | goto out; | |
4309 | status = decode_read(&xdr, rqstp, res); | |
4310 | if (!status) | |
4311 | status = res->count; | |
4312 | out: | |
4313 | return status; | |
4314 | } | |
4315 | ||
4316 | /* | |
4317 | * Decode WRITE response | |
4318 | */ | |
8687b63a | 4319 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4320 | { |
4321 | struct xdr_stream xdr; | |
4322 | struct compound_hdr hdr; | |
4323 | int status; | |
4324 | ||
4325 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4326 | status = decode_compound_hdr(&xdr, &hdr); | |
4327 | if (status) | |
4328 | goto out; | |
4329 | status = decode_putfh(&xdr); | |
4330 | if (status) | |
4331 | goto out; | |
4332 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4333 | if (status) |
4334 | goto out; | |
4335 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4336 | if (!status) |
4337 | status = res->count; | |
4338 | out: | |
4339 | return status; | |
4340 | } | |
4341 | ||
4342 | /* | |
4343 | * Decode COMMIT response | |
4344 | */ | |
8687b63a | 4345 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4346 | { |
4347 | struct xdr_stream xdr; | |
4348 | struct compound_hdr hdr; | |
4349 | int status; | |
4350 | ||
4351 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4352 | status = decode_compound_hdr(&xdr, &hdr); | |
4353 | if (status) | |
4354 | goto out; | |
4355 | status = decode_putfh(&xdr); | |
4356 | if (status) | |
4357 | goto out; | |
4358 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4359 | if (status) |
4360 | goto out; | |
4361 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4362 | out: |
4363 | return status; | |
4364 | } | |
4365 | ||
4366 | /* | |
4367 | * FSINFO request | |
4368 | */ | |
3dda5e43 BH |
4369 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, |
4370 | struct nfs4_fsinfo_res *res) | |
1da177e4 LT |
4371 | { |
4372 | struct xdr_stream xdr; | |
4373 | struct compound_hdr hdr; | |
4374 | int status; | |
4375 | ||
4376 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4377 | status = decode_compound_hdr(&xdr, &hdr); | |
4378 | if (!status) | |
4379 | status = decode_putfh(&xdr); | |
4380 | if (!status) | |
3dda5e43 | 4381 | status = decode_fsinfo(&xdr, res->fsinfo); |
1da177e4 LT |
4382 | return status; |
4383 | } | |
4384 | ||
4385 | /* | |
4386 | * PATHCONF request | |
4387 | */ | |
d45b2989 BH |
4388 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, |
4389 | struct nfs4_pathconf_res *res) | |
1da177e4 LT |
4390 | { |
4391 | struct xdr_stream xdr; | |
4392 | struct compound_hdr hdr; | |
4393 | int status; | |
4394 | ||
4395 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4396 | status = decode_compound_hdr(&xdr, &hdr); | |
4397 | if (!status) | |
4398 | status = decode_putfh(&xdr); | |
4399 | if (!status) | |
d45b2989 | 4400 | status = decode_pathconf(&xdr, res->pathconf); |
1da177e4 LT |
4401 | return status; |
4402 | } | |
4403 | ||
4404 | /* | |
4405 | * STATFS request | |
4406 | */ | |
24ad148a BH |
4407 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, |
4408 | struct nfs4_statfs_res *res) | |
1da177e4 LT |
4409 | { |
4410 | struct xdr_stream xdr; | |
4411 | struct compound_hdr hdr; | |
4412 | int status; | |
4413 | ||
4414 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4415 | status = decode_compound_hdr(&xdr, &hdr); | |
4416 | if (!status) | |
4417 | status = decode_putfh(&xdr); | |
4418 | if (!status) | |
24ad148a | 4419 | status = decode_statfs(&xdr, res->fsstat); |
1da177e4 LT |
4420 | return status; |
4421 | } | |
4422 | ||
4423 | /* | |
4424 | * GETATTR_BITMAP request | |
4425 | */ | |
8687b63a | 4426 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4427 | { |
4428 | struct xdr_stream xdr; | |
4429 | struct compound_hdr hdr; | |
4430 | int status; | |
4431 | ||
4432 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4433 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4434 | goto out; | |
4435 | if ((status = decode_putfh(&xdr)) != 0) | |
4436 | goto out; | |
4437 | status = decode_server_caps(&xdr, res); | |
4438 | out: | |
4439 | return status; | |
4440 | } | |
4441 | ||
4442 | /* | |
4443 | * Decode RENEW response | |
4444 | */ | |
8687b63a | 4445 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4446 | { |
4447 | struct xdr_stream xdr; | |
4448 | struct compound_hdr hdr; | |
4449 | int status; | |
4450 | ||
4451 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4452 | status = decode_compound_hdr(&xdr, &hdr); | |
4453 | if (!status) | |
4454 | status = decode_renew(&xdr); | |
4455 | return status; | |
4456 | } | |
4457 | ||
4458 | /* | |
4459 | * a SETCLIENTID request | |
4460 | */ | |
8687b63a | 4461 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4462 | struct nfs_client *clp) |
1da177e4 LT |
4463 | { |
4464 | struct xdr_stream xdr; | |
4465 | struct compound_hdr hdr; | |
4466 | int status; | |
4467 | ||
4468 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4469 | status = decode_compound_hdr(&xdr, &hdr); | |
4470 | if (!status) | |
4471 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
4472 | return status; |
4473 | } | |
4474 | ||
4475 | /* | |
4476 | * a SETCLIENTID_CONFIRM request | |
4477 | */ | |
8687b63a | 4478 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4479 | { |
4480 | struct xdr_stream xdr; | |
4481 | struct compound_hdr hdr; | |
4482 | int status; | |
4483 | ||
4484 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4485 | status = decode_compound_hdr(&xdr, &hdr); | |
4486 | if (!status) | |
4487 | status = decode_setclientid_confirm(&xdr); | |
4488 | if (!status) | |
4489 | status = decode_putrootfh(&xdr); | |
4490 | if (!status) | |
4491 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4492 | return status; |
4493 | } | |
4494 | ||
4495 | /* | |
4496 | * DELEGRETURN request | |
4497 | */ | |
8687b63a | 4498 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4499 | { |
4500 | struct xdr_stream xdr; | |
4501 | struct compound_hdr hdr; | |
4502 | int status; | |
4503 | ||
4504 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4505 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4506 | if (status != 0) |
4507 | goto out; | |
4508 | status = decode_putfh(&xdr); | |
4509 | if (status != 0) | |
4510 | goto out; | |
4511 | status = decode_delegreturn(&xdr); | |
4512 | decode_getfattr(&xdr, res->fattr, res->server); | |
4513 | out: | |
1da177e4 LT |
4514 | return status; |
4515 | } | |
4516 | ||
683b57b4 TM |
4517 | /* |
4518 | * FS_LOCATIONS request | |
4519 | */ | |
22958463 BH |
4520 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, |
4521 | struct nfs4_fs_locations_res *res) | |
683b57b4 TM |
4522 | { |
4523 | struct xdr_stream xdr; | |
4524 | struct compound_hdr hdr; | |
4525 | int status; | |
4526 | ||
4527 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4528 | status = decode_compound_hdr(&xdr, &hdr); | |
4529 | if (status != 0) | |
4530 | goto out; | |
4531 | if ((status = decode_putfh(&xdr)) != 0) | |
4532 | goto out; | |
4533 | if ((status = decode_lookup(&xdr)) != 0) | |
4534 | goto out; | |
4535 | xdr_enter_page(&xdr, PAGE_SIZE); | |
22958463 BH |
4536 | status = decode_getfattr(&xdr, &res->fs_locations->fattr, |
4537 | res->fs_locations->server); | |
683b57b4 TM |
4538 | out: |
4539 | return status; | |
4540 | } | |
4541 | ||
0dbb4c67 | 4542 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4543 | { |
4544 | uint32_t bitmap[2] = {0}; | |
4545 | uint32_t len; | |
4546 | ||
4547 | if (!*p++) { | |
4548 | if (!*p) | |
4549 | return ERR_PTR(-EAGAIN); | |
4550 | entry->eof = 1; | |
4551 | return ERR_PTR(-EBADCOOKIE); | |
4552 | } | |
4553 | ||
4554 | entry->prev_cookie = entry->cookie; | |
4555 | p = xdr_decode_hyper(p, &entry->cookie); | |
4556 | entry->len = ntohl(*p++); | |
4557 | entry->name = (const char *) p; | |
4558 | p += XDR_QUADLEN(entry->len); | |
4559 | ||
4560 | /* | |
4561 | * In case the server doesn't return an inode number, | |
4562 | * we fake one here. (We don't use inode number 0, | |
4563 | * since glibc seems to choke on it...) | |
4564 | */ | |
4565 | entry->ino = 1; | |
4566 | ||
4567 | len = ntohl(*p++); /* bitmap length */ | |
4568 | if (len-- > 0) { | |
4569 | bitmap[0] = ntohl(*p++); | |
4570 | if (len-- > 0) { | |
4571 | bitmap[1] = ntohl(*p++); | |
4572 | p += len; | |
4573 | } | |
4574 | } | |
4575 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4576 | if (len > 0) { | |
97d312d0 MN |
4577 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4578 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4579 | /* Ignore the return value of rdattr_error for now */ | |
4580 | p++; | |
4581 | len--; | |
4582 | } | |
1da177e4 LT |
4583 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4584 | xdr_decode_hyper(p, &entry->ino); | |
4585 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4586 | xdr_decode_hyper(p, &entry->ino); | |
4587 | p += len; | |
4588 | } | |
4589 | ||
4590 | entry->eof = !p[0] && p[1]; | |
4591 | return p; | |
4592 | } | |
4593 | ||
4594 | /* | |
4595 | * We need to translate between nfs status return values and | |
4596 | * the local errno values which may not be the same. | |
4597 | */ | |
4598 | static struct { | |
4599 | int stat; | |
4600 | int errno; | |
4601 | } nfs_errtbl[] = { | |
4602 | { NFS4_OK, 0 }, | |
856dff3d BH |
4603 | { NFS4ERR_PERM, -EPERM }, |
4604 | { NFS4ERR_NOENT, -ENOENT }, | |
4605 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
4606 | { NFS4ERR_NXIO, -ENXIO }, | |
4607 | { NFS4ERR_ACCESS, -EACCES }, | |
4608 | { NFS4ERR_EXIST, -EEXIST }, | |
4609 | { NFS4ERR_XDEV, -EXDEV }, | |
4610 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
4611 | { NFS4ERR_ISDIR, -EISDIR }, | |
4612 | { NFS4ERR_INVAL, -EINVAL }, | |
4613 | { NFS4ERR_FBIG, -EFBIG }, | |
4614 | { NFS4ERR_NOSPC, -ENOSPC }, | |
4615 | { NFS4ERR_ROFS, -EROFS }, | |
4616 | { NFS4ERR_MLINK, -EMLINK }, | |
4617 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
4618 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
4619 | { NFS4ERR_DQUOT, -EDQUOT }, | |
4620 | { NFS4ERR_STALE, -ESTALE }, | |
4621 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
4622 | { NFS4ERR_BADOWNER, -EINVAL }, | |
4623 | { NFS4ERR_BADNAME, -EINVAL }, | |
4624 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
4625 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
4626 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
4627 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
4628 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
4629 | { NFS4ERR_LOCKED, -EAGAIN }, | |
4630 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
4631 | { NFS4ERR_SYMLINK, -ELOOP }, | |
4632 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
4633 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
4634 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
4635 | * to be handled by a |
4636 | * middle-layer. | |
4637 | */ | |
856dff3d | 4638 | { -1, -EIO } |
1da177e4 LT |
4639 | }; |
4640 | ||
4641 | /* | |
4642 | * Convert an NFS error code to a local one. | |
4643 | * This one is used jointly by NFSv2 and NFSv3. | |
4644 | */ | |
4645 | static int | |
0a8ea437 | 4646 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4647 | { |
4648 | int i; | |
4649 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4650 | if (nfs_errtbl[i].stat == stat) | |
4651 | return nfs_errtbl[i].errno; | |
4652 | } | |
4653 | if (stat <= 10000 || stat > 10100) { | |
4654 | /* The server is looney tunes. */ | |
856dff3d | 4655 | return -ESERVERFAULT; |
1da177e4 LT |
4656 | } |
4657 | /* If we cannot translate the error, the recovery routines should | |
4658 | * handle it. | |
4659 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4660 | * not conflict with native Linux error codes. | |
4661 | */ | |
856dff3d | 4662 | return -stat; |
1da177e4 LT |
4663 | } |
4664 | ||
1da177e4 LT |
4665 | #define PROC(proc, argtype, restype) \ |
4666 | [NFSPROC4_CLNT_##proc] = { \ | |
4667 | .p_proc = NFSPROC4_COMPOUND, \ | |
4668 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4669 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4670 | .p_arglen = NFS4_##argtype##_sz, \ |
4671 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4672 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4673 | .p_name = #proc, \ | |
05d564fe | 4674 | } |
1da177e4 LT |
4675 | |
4676 | struct rpc_procinfo nfs4_procedures[] = { | |
4677 | PROC(READ, enc_read, dec_read), | |
4678 | PROC(WRITE, enc_write, dec_write), | |
4679 | PROC(COMMIT, enc_commit, dec_commit), | |
4680 | PROC(OPEN, enc_open, dec_open), | |
4681 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4682 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4683 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4684 | PROC(CLOSE, enc_close, dec_close), | |
4685 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4686 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4687 | PROC(RENEW, enc_renew, dec_renew), | |
4688 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4689 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4690 | PROC(LOCK, enc_lock, dec_lock), | |
4691 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4692 | PROC(LOCKU, enc_locku, dec_locku), | |
4693 | PROC(ACCESS, enc_access, dec_access), | |
4694 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4695 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4696 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4697 | PROC(REMOVE, enc_remove, dec_remove), | |
4698 | PROC(RENAME, enc_rename, dec_rename), | |
4699 | PROC(LINK, enc_link, dec_link), | |
4700 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4701 | PROC(CREATE, enc_create, dec_create), | |
4702 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4703 | PROC(STATFS, enc_statfs, dec_statfs), | |
4704 | PROC(READLINK, enc_readlink, dec_readlink), | |
4705 | PROC(READDIR, enc_readdir, dec_readdir), | |
4706 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4707 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4708 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4709 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4710 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4711 | }; |
4712 | ||
4713 | struct rpc_version nfs_version4 = { | |
4714 | .number = 4, | |
e8c96f8c | 4715 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4716 | .procs = nfs4_procedures |
4717 | }; | |
4718 | ||
4719 | /* | |
4720 | * Local variables: | |
4721 | * c-basic-offset: 8 | |
4722 | * End: | |
4723 | */ |