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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> | |
11 | * | |
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 | ||
70 | /* lock,open owner id: | |
71 | * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2) | |
72 | */ | |
73 | #define owner_id_maxsz (1 + 1) | |
74 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
75 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
76 | #define op_encode_hdr_maxsz (1) | |
77 | #define op_decode_hdr_maxsz (2) | |
78 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ | |
79 | (NFS4_FHSIZE >> 2)) | |
80 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
81 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
82 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
83 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
84 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
85 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
86 | #define nfs4_fattr_bitmap_maxsz 3 |
87 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
88 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
89 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
96928206 BF |
90 | /* This is based on getfattr, which uses the most attributes: */ |
91 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
92 | 3 + 3 + 3 + 2 * nfs4_name_maxsz)) | |
93 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ | |
94 | nfs4_fattr_value_maxsz) | |
95 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
1da177e4 LT |
96 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
97 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
98 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
99 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
1da177e4 LT |
100 | #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) |
101 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) | |
102 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
103 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
104 | #define encode_setclientid_maxsz \ | |
105 | (op_encode_hdr_maxsz + \ | |
106 | 4 /*server->ip_addr*/ + \ | |
107 | 1 /*Netid*/ + \ | |
108 | 6 /*uaddr*/ + \ | |
109 | 6 + (NFS4_VERIFIER_SIZE >> 2)) | |
110 | #define decode_setclientid_maxsz \ | |
111 | (op_decode_hdr_maxsz + \ | |
112 | 2 + \ | |
113 | 1024) /* large value for CLID_INUSE */ | |
114 | #define encode_setclientid_confirm_maxsz \ | |
115 | (op_encode_hdr_maxsz + \ | |
116 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
117 | #define decode_setclientid_confirm_maxsz \ | |
118 | (op_decode_hdr_maxsz) | |
119 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + \ | |
120 | 1 + ((3 + NFS4_FHSIZE) >> 2)) | |
121 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ | |
122 | nfs4_name_maxsz) | |
123 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ | |
124 | 2 * nfs4_name_maxsz) | |
125 | #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) | |
126 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ | |
127 | nfs4_name_maxsz) | |
128 | #define decode_link_maxsz (op_decode_hdr_maxsz + 5) | |
129 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ | |
130 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 131 | 1 + \ |
96928206 | 132 | nfs4_fattr_maxsz) |
1da177e4 LT |
133 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
134 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
135 | 2 + nfs4_name_maxsz + \ | |
96928206 | 136 | nfs4_fattr_maxsz) |
1da177e4 LT |
137 | #define decode_create_maxsz (op_decode_hdr_maxsz + 8) |
138 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) | |
139 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
140 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ | |
141 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
142 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
143 | encode_putfh_maxsz + \ | |
144 | op_encode_hdr_maxsz + 7) | |
145 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ | |
146 | decode_putfh_maxsz + \ | |
147 | op_decode_hdr_maxsz + 2) | |
148 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ | |
149 | encode_putfh_maxsz + \ | |
150 | op_encode_hdr_maxsz) | |
151 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ | |
152 | decode_putfh_maxsz + \ | |
153 | op_decode_hdr_maxsz) | |
154 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ | |
155 | encode_putfh_maxsz + \ | |
156 | op_encode_hdr_maxsz + 9) | |
157 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ | |
158 | decode_putfh_maxsz + \ | |
159 | op_decode_hdr_maxsz + 2) | |
160 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ | |
161 | encode_putfh_maxsz + \ | |
4f9838c7 TM |
162 | op_encode_hdr_maxsz + 8 + \ |
163 | encode_getattr_maxsz) | |
1da177e4 LT |
164 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
165 | decode_putfh_maxsz + \ | |
4f9838c7 TM |
166 | op_decode_hdr_maxsz + 4 + \ |
167 | decode_getattr_maxsz) | |
1da177e4 LT |
168 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
169 | encode_putfh_maxsz + \ | |
4f9838c7 TM |
170 | op_encode_hdr_maxsz + 3 + \ |
171 | encode_getattr_maxsz) | |
1da177e4 LT |
172 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
173 | decode_putfh_maxsz + \ | |
4f9838c7 TM |
174 | op_decode_hdr_maxsz + 2 + \ |
175 | decode_getattr_maxsz) | |
1da177e4 LT |
176 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
177 | encode_putfh_maxsz + \ | |
178 | op_encode_hdr_maxsz + \ | |
179 | 13 + 3 + 2 + 64 + \ | |
180 | encode_getattr_maxsz + \ | |
181 | encode_getfh_maxsz) | |
182 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ | |
183 | decode_putfh_maxsz + \ | |
184 | op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ | |
185 | decode_getattr_maxsz + \ | |
186 | decode_getfh_maxsz) | |
187 | #define NFS4_enc_open_confirm_sz \ | |
188 | (compound_encode_hdr_maxsz + \ | |
189 | encode_putfh_maxsz + \ | |
190 | op_encode_hdr_maxsz + 5) | |
191 | #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ | |
192 | decode_putfh_maxsz + \ | |
193 | op_decode_hdr_maxsz + 4) | |
194 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ | |
195 | encode_putfh_maxsz + \ | |
196 | op_encode_hdr_maxsz + \ | |
197 | 11) | |
198 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ | |
199 | decode_putfh_maxsz + \ | |
200 | op_decode_hdr_maxsz + \ | |
201 | 4 + 5 + 2 + 3) | |
202 | #define NFS4_enc_open_downgrade_sz \ | |
203 | (compound_encode_hdr_maxsz + \ | |
204 | encode_putfh_maxsz + \ | |
516a6af6 TM |
205 | op_encode_hdr_maxsz + 7 + \ |
206 | encode_getattr_maxsz) | |
1da177e4 LT |
207 | #define NFS4_dec_open_downgrade_sz \ |
208 | (compound_decode_hdr_maxsz + \ | |
209 | decode_putfh_maxsz + \ | |
516a6af6 TM |
210 | op_decode_hdr_maxsz + 4 + \ |
211 | decode_getattr_maxsz) | |
1da177e4 LT |
212 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ |
213 | encode_putfh_maxsz + \ | |
516a6af6 TM |
214 | op_encode_hdr_maxsz + 5 + \ |
215 | encode_getattr_maxsz) | |
1da177e4 LT |
216 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ |
217 | decode_putfh_maxsz + \ | |
516a6af6 TM |
218 | op_decode_hdr_maxsz + 4 + \ |
219 | decode_getattr_maxsz) | |
1da177e4 LT |
220 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ |
221 | encode_putfh_maxsz + \ | |
222 | op_encode_hdr_maxsz + 4 + \ | |
96928206 | 223 | nfs4_fattr_maxsz + \ |
1da177e4 LT |
224 | encode_getattr_maxsz) |
225 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
226 | decode_putfh_maxsz + \ | |
6ce7dc94 CL |
227 | op_decode_hdr_maxsz + 3 + \ |
228 | nfs4_fattr_maxsz) | |
1da177e4 LT |
229 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
230 | encode_putfh_maxsz + \ | |
231 | encode_fsinfo_maxsz) | |
232 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
233 | decode_putfh_maxsz + \ | |
234 | decode_fsinfo_maxsz) | |
235 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
236 | encode_renew_maxsz) | |
237 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
238 | decode_renew_maxsz) | |
239 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
240 | encode_setclientid_maxsz) | |
241 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
242 | decode_setclientid_maxsz) | |
243 | #define NFS4_enc_setclientid_confirm_sz \ | |
244 | (compound_encode_hdr_maxsz + \ | |
245 | encode_setclientid_confirm_maxsz + \ | |
246 | encode_putrootfh_maxsz + \ | |
247 | encode_fsinfo_maxsz) | |
248 | #define NFS4_dec_setclientid_confirm_sz \ | |
249 | (compound_decode_hdr_maxsz + \ | |
250 | decode_setclientid_confirm_maxsz + \ | |
251 | decode_putrootfh_maxsz + \ | |
252 | decode_fsinfo_maxsz) | |
253 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
254 | encode_putfh_maxsz + \ | |
255 | encode_getattr_maxsz + \ | |
256 | op_encode_hdr_maxsz + \ | |
257 | 1 + 1 + 2 + 2 + \ | |
258 | 1 + 4 + 1 + 2 + \ | |
259 | owner_id_maxsz) | |
260 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ | |
261 | decode_putfh_maxsz + \ | |
262 | decode_getattr_maxsz + \ | |
263 | op_decode_hdr_maxsz + \ | |
264 | 2 + 2 + 1 + 2 + \ | |
265 | owner_id_maxsz) | |
266 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ | |
267 | encode_putfh_maxsz + \ | |
268 | encode_getattr_maxsz + \ | |
269 | op_encode_hdr_maxsz + \ | |
270 | 1 + 2 + 2 + 2 + \ | |
271 | owner_id_maxsz) | |
272 | #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) | |
273 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ | |
274 | encode_putfh_maxsz + \ | |
275 | encode_getattr_maxsz + \ | |
276 | op_encode_hdr_maxsz + \ | |
277 | 1 + 1 + 4 + 2 + 2) | |
278 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ | |
279 | decode_putfh_maxsz + \ | |
280 | decode_getattr_maxsz + \ | |
281 | op_decode_hdr_maxsz + 4) | |
282 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ | |
283 | encode_putfh_maxsz + \ | |
284 | op_encode_hdr_maxsz + 1) | |
285 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ | |
286 | decode_putfh_maxsz + \ | |
287 | op_decode_hdr_maxsz + 2) | |
288 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ | |
289 | encode_putfh_maxsz + \ | |
290 | encode_getattr_maxsz) | |
291 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
292 | decode_putfh_maxsz + \ | |
293 | decode_getattr_maxsz) | |
294 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
295 | encode_putfh_maxsz + \ | |
296 | encode_lookup_maxsz + \ | |
297 | encode_getattr_maxsz + \ | |
298 | encode_getfh_maxsz) | |
299 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
300 | decode_putfh_maxsz + \ | |
301 | op_decode_hdr_maxsz + \ | |
302 | decode_getattr_maxsz + \ | |
303 | decode_getfh_maxsz) | |
304 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
305 | encode_putrootfh_maxsz + \ | |
306 | encode_getattr_maxsz + \ | |
307 | encode_getfh_maxsz) | |
308 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
309 | decode_putrootfh_maxsz + \ | |
310 | decode_getattr_maxsz + \ | |
311 | decode_getfh_maxsz) | |
312 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
313 | encode_putfh_maxsz + \ | |
16e42959 TM |
314 | encode_remove_maxsz + \ |
315 | encode_getattr_maxsz) | |
1da177e4 LT |
316 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
317 | decode_putfh_maxsz + \ | |
16e42959 TM |
318 | op_decode_hdr_maxsz + 5 + \ |
319 | decode_getattr_maxsz) | |
1da177e4 LT |
320 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
321 | encode_putfh_maxsz + \ | |
322 | encode_savefh_maxsz + \ | |
323 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
324 | encode_rename_maxsz + \ |
325 | encode_getattr_maxsz + \ | |
326 | encode_restorefh_maxsz + \ | |
327 | encode_getattr_maxsz) | |
1da177e4 LT |
328 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
329 | decode_putfh_maxsz + \ | |
330 | decode_savefh_maxsz + \ | |
331 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
332 | decode_rename_maxsz + \ |
333 | decode_getattr_maxsz + \ | |
334 | decode_restorefh_maxsz + \ | |
335 | decode_getattr_maxsz) | |
1da177e4 LT |
336 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
337 | encode_putfh_maxsz + \ | |
338 | encode_savefh_maxsz + \ | |
339 | encode_putfh_maxsz + \ | |
91ba2eee TM |
340 | encode_link_maxsz + \ |
341 | decode_getattr_maxsz + \ | |
342 | encode_restorefh_maxsz + \ | |
343 | decode_getattr_maxsz) | |
1da177e4 LT |
344 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
345 | decode_putfh_maxsz + \ | |
346 | decode_savefh_maxsz + \ | |
347 | decode_putfh_maxsz + \ | |
91ba2eee TM |
348 | decode_link_maxsz + \ |
349 | decode_getattr_maxsz + \ | |
350 | decode_restorefh_maxsz + \ | |
351 | decode_getattr_maxsz) | |
1da177e4 LT |
352 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
353 | encode_putfh_maxsz + \ | |
354 | encode_symlink_maxsz + \ | |
355 | encode_getattr_maxsz + \ | |
356 | encode_getfh_maxsz) | |
357 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
358 | decode_putfh_maxsz + \ | |
359 | decode_symlink_maxsz + \ | |
360 | decode_getattr_maxsz + \ | |
361 | decode_getfh_maxsz) | |
362 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
363 | encode_putfh_maxsz + \ | |
56ae19f3 | 364 | encode_savefh_maxsz + \ |
1da177e4 | 365 | encode_create_maxsz + \ |
56ae19f3 | 366 | encode_getfh_maxsz + \ |
1da177e4 | 367 | encode_getattr_maxsz + \ |
56ae19f3 TM |
368 | encode_restorefh_maxsz + \ |
369 | encode_getattr_maxsz) | |
1da177e4 LT |
370 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
371 | decode_putfh_maxsz + \ | |
56ae19f3 | 372 | decode_savefh_maxsz + \ |
1da177e4 | 373 | decode_create_maxsz + \ |
56ae19f3 | 374 | decode_getfh_maxsz + \ |
1da177e4 | 375 | decode_getattr_maxsz + \ |
56ae19f3 TM |
376 | decode_restorefh_maxsz + \ |
377 | decode_getattr_maxsz) | |
1da177e4 LT |
378 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
379 | encode_putfh_maxsz + \ | |
380 | encode_getattr_maxsz) | |
381 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
382 | decode_putfh_maxsz + \ | |
383 | decode_getattr_maxsz) | |
384 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
385 | encode_putfh_maxsz + \ | |
386 | encode_getattr_maxsz) | |
387 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ | |
388 | decode_putfh_maxsz + \ | |
389 | op_decode_hdr_maxsz + 12) | |
390 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ | |
ab91f264 | 391 | encode_putfh_maxsz + \ |
1da177e4 LT |
392 | encode_getattr_maxsz) |
393 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
ab91f264 | 394 | decode_putfh_maxsz + \ |
1da177e4 LT |
395 | decode_getattr_maxsz) |
396 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
397 | encode_putfh_maxsz + \ | |
fa178f29 TM |
398 | encode_delegreturn_maxsz + \ |
399 | encode_getattr_maxsz) | |
1da177e4 | 400 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
fa178f29 TM |
401 | decode_delegreturn_maxsz + \ |
402 | decode_getattr_maxsz) | |
029d105e BF |
403 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
404 | encode_putfh_maxsz + \ | |
405 | encode_getattr_maxsz) | |
406 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ | |
407 | decode_putfh_maxsz + \ | |
408 | op_decode_hdr_maxsz + \ | |
409 | nfs4_fattr_bitmap_maxsz + 1) | |
23ec6965 BF |
410 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
411 | encode_putfh_maxsz + \ | |
412 | op_encode_hdr_maxsz + 4 + \ | |
413 | nfs4_fattr_bitmap_maxsz + 1) | |
414 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ | |
415 | decode_putfh_maxsz + \ | |
416 | op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
683b57b4 TM |
417 | #define NFS4_enc_fs_locations_sz \ |
418 | (compound_encode_hdr_maxsz + \ | |
419 | encode_putfh_maxsz + \ | |
420 | encode_getattr_maxsz) | |
421 | #define NFS4_dec_fs_locations_sz \ | |
422 | (compound_decode_hdr_maxsz + \ | |
423 | decode_putfh_maxsz + \ | |
424 | op_decode_hdr_maxsz + \ | |
425 | nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
426 | |
427 | static struct { | |
428 | unsigned int mode; | |
429 | unsigned int nfs2type; | |
430 | } nfs_type2fmt[] = { | |
431 | { 0, NFNON }, | |
432 | { S_IFREG, NFREG }, | |
433 | { S_IFDIR, NFDIR }, | |
434 | { S_IFBLK, NFBLK }, | |
435 | { S_IFCHR, NFCHR }, | |
436 | { S_IFLNK, NFLNK }, | |
437 | { S_IFSOCK, NFSOCK }, | |
438 | { S_IFIFO, NFFIFO }, | |
439 | { 0, NFNON }, | |
440 | { 0, NFNON }, | |
441 | }; | |
442 | ||
443 | struct compound_hdr { | |
444 | int32_t status; | |
445 | uint32_t nops; | |
446 | uint32_t taglen; | |
447 | char * tag; | |
448 | }; | |
449 | ||
450 | /* | |
451 | * START OF "GENERIC" ENCODE ROUTINES. | |
452 | * These may look a little ugly since they are imported from a "generic" | |
453 | * set of XDR encode/decode routines which are intended to be shared by | |
454 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
455 | * | |
456 | * If the pain of reading these is too great, it should be a straightforward | |
457 | * task to translate them into Linux-specific versions which are more | |
458 | * consistent with the style used in NFSv2/v3... | |
459 | */ | |
460 | #define WRITE32(n) *p++ = htonl(n) | |
461 | #define WRITE64(n) do { \ | |
462 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
463 | *p++ = htonl((uint32_t)(n)); \ | |
464 | } while (0) | |
465 | #define WRITEMEM(ptr,nbytes) do { \ | |
466 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
467 | } while (0) | |
468 | ||
469 | #define RESERVE_SPACE(nbytes) do { \ | |
470 | p = xdr_reserve_space(xdr, nbytes); \ | |
471 | if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ | |
472 | BUG_ON(!p); \ | |
473 | } while (0) | |
474 | ||
475 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
476 | { | |
8687b63a | 477 | __be32 *p; |
1da177e4 LT |
478 | |
479 | p = xdr_reserve_space(xdr, 4 + len); | |
480 | BUG_ON(p == NULL); | |
481 | xdr_encode_opaque(p, str, len); | |
482 | } | |
483 | ||
484 | static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
485 | { | |
8687b63a | 486 | __be32 *p; |
1da177e4 LT |
487 | |
488 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
489 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
490 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
491 | WRITE32(hdr->taglen); | |
492 | WRITEMEM(hdr->tag, hdr->taglen); | |
493 | WRITE32(NFS4_MINOR_VERSION); | |
494 | WRITE32(hdr->nops); | |
495 | return 0; | |
496 | } | |
497 | ||
498 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
499 | { | |
8687b63a | 500 | __be32 *p; |
1da177e4 LT |
501 | |
502 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
503 | BUG_ON(p == NULL); | |
504 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
505 | } | |
506 | ||
507 | static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) | |
508 | { | |
509 | char owner_name[IDMAP_NAMESZ]; | |
510 | char owner_group[IDMAP_NAMESZ]; | |
511 | int owner_namelen = 0; | |
512 | int owner_grouplen = 0; | |
8687b63a AV |
513 | __be32 *p; |
514 | __be32 *q; | |
1da177e4 LT |
515 | int len; |
516 | uint32_t bmval0 = 0; | |
517 | uint32_t bmval1 = 0; | |
518 | int status; | |
519 | ||
520 | /* | |
521 | * We reserve enough space to write the entire attribute buffer at once. | |
522 | * In the worst-case, this would be | |
523 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
524 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 525 | * such as owner/group. |
1da177e4 LT |
526 | */ |
527 | len = 16; | |
528 | ||
529 | /* Sigh */ | |
530 | if (iap->ia_valid & ATTR_SIZE) | |
531 | len += 8; | |
532 | if (iap->ia_valid & ATTR_MODE) | |
533 | len += 4; | |
534 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 535 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 LT |
536 | if (owner_namelen < 0) { |
537 | printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", | |
538 | iap->ia_uid); | |
539 | /* XXX */ | |
540 | strcpy(owner_name, "nobody"); | |
541 | owner_namelen = sizeof("nobody") - 1; | |
542 | /* goto out; */ | |
543 | } | |
544 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
545 | } | |
546 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 547 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 LT |
548 | if (owner_grouplen < 0) { |
549 | printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", | |
550 | iap->ia_gid); | |
551 | strcpy(owner_group, "nobody"); | |
552 | owner_grouplen = sizeof("nobody") - 1; | |
553 | /* goto out; */ | |
554 | } | |
555 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
556 | } | |
557 | if (iap->ia_valid & ATTR_ATIME_SET) | |
558 | len += 16; | |
559 | else if (iap->ia_valid & ATTR_ATIME) | |
560 | len += 4; | |
561 | if (iap->ia_valid & ATTR_MTIME_SET) | |
562 | len += 16; | |
563 | else if (iap->ia_valid & ATTR_MTIME) | |
564 | len += 4; | |
565 | RESERVE_SPACE(len); | |
566 | ||
567 | /* | |
568 | * We write the bitmap length now, but leave the bitmap and the attribute | |
569 | * buffer length to be backfilled at the end of this routine. | |
570 | */ | |
571 | WRITE32(2); | |
572 | q = p; | |
573 | p += 3; | |
574 | ||
575 | if (iap->ia_valid & ATTR_SIZE) { | |
576 | bmval0 |= FATTR4_WORD0_SIZE; | |
577 | WRITE64(iap->ia_size); | |
578 | } | |
579 | if (iap->ia_valid & ATTR_MODE) { | |
580 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 581 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
582 | } |
583 | if (iap->ia_valid & ATTR_UID) { | |
584 | bmval1 |= FATTR4_WORD1_OWNER; | |
585 | WRITE32(owner_namelen); | |
586 | WRITEMEM(owner_name, owner_namelen); | |
587 | } | |
588 | if (iap->ia_valid & ATTR_GID) { | |
589 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
590 | WRITE32(owner_grouplen); | |
591 | WRITEMEM(owner_group, owner_grouplen); | |
592 | } | |
593 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
594 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
595 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
596 | WRITE32(0); | |
597 | WRITE32(iap->ia_mtime.tv_sec); | |
598 | WRITE32(iap->ia_mtime.tv_nsec); | |
599 | } | |
600 | else if (iap->ia_valid & ATTR_ATIME) { | |
601 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
602 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
603 | } | |
604 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
605 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
606 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
607 | WRITE32(0); | |
608 | WRITE32(iap->ia_mtime.tv_sec); | |
609 | WRITE32(iap->ia_mtime.tv_nsec); | |
610 | } | |
611 | else if (iap->ia_valid & ATTR_MTIME) { | |
612 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
613 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
614 | } | |
615 | ||
616 | /* | |
617 | * Now we backfill the bitmap and the attribute buffer length. | |
618 | */ | |
619 | if (len != ((char *)p - (char *)q) + 4) { | |
620 | printk ("encode_attr: Attr length calculation error! %u != %Zu\n", | |
621 | len, ((char *)p - (char *)q) + 4); | |
622 | BUG(); | |
623 | } | |
624 | len = (char *)p - (char *)q - 12; | |
625 | *q++ = htonl(bmval0); | |
626 | *q++ = htonl(bmval1); | |
627 | *q++ = htonl(len); | |
628 | ||
629 | status = 0; | |
630 | /* out: */ | |
631 | return status; | |
632 | } | |
633 | ||
634 | static int encode_access(struct xdr_stream *xdr, u32 access) | |
635 | { | |
8687b63a | 636 | __be32 *p; |
1da177e4 LT |
637 | |
638 | RESERVE_SPACE(8); | |
639 | WRITE32(OP_ACCESS); | |
640 | WRITE32(access); | |
641 | ||
642 | return 0; | |
643 | } | |
644 | ||
645 | static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) | |
646 | { | |
8687b63a | 647 | __be32 *p; |
1da177e4 | 648 | |
8ae20abd | 649 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 650 | WRITE32(OP_CLOSE); |
cee54fc9 | 651 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 652 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
653 | |
654 | return 0; | |
655 | } | |
656 | ||
657 | static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) | |
658 | { | |
8687b63a | 659 | __be32 *p; |
1da177e4 LT |
660 | |
661 | RESERVE_SPACE(16); | |
662 | WRITE32(OP_COMMIT); | |
663 | WRITE64(args->offset); | |
664 | WRITE32(args->count); | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
669 | static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) | |
670 | { | |
8687b63a | 671 | __be32 *p; |
1da177e4 LT |
672 | |
673 | RESERVE_SPACE(8); | |
674 | WRITE32(OP_CREATE); | |
675 | WRITE32(create->ftype); | |
676 | ||
677 | switch (create->ftype) { | |
678 | case NF4LNK: | |
94a6d753 CL |
679 | RESERVE_SPACE(4); |
680 | WRITE32(create->u.symlink.len); | |
681 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
682 | break; |
683 | ||
684 | case NF4BLK: case NF4CHR: | |
685 | RESERVE_SPACE(8); | |
686 | WRITE32(create->u.device.specdata1); | |
687 | WRITE32(create->u.device.specdata2); | |
688 | break; | |
689 | ||
690 | default: | |
691 | break; | |
692 | } | |
693 | ||
694 | RESERVE_SPACE(4 + create->name->len); | |
695 | WRITE32(create->name->len); | |
696 | WRITEMEM(create->name->name, create->name->len); | |
697 | ||
698 | return encode_attrs(xdr, create->attrs, create->server); | |
699 | } | |
700 | ||
701 | static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) | |
702 | { | |
8687b63a | 703 | __be32 *p; |
1da177e4 LT |
704 | |
705 | RESERVE_SPACE(12); | |
706 | WRITE32(OP_GETATTR); | |
707 | WRITE32(1); | |
708 | WRITE32(bitmap); | |
709 | return 0; | |
710 | } | |
711 | ||
712 | static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) | |
713 | { | |
8687b63a | 714 | __be32 *p; |
1da177e4 LT |
715 | |
716 | RESERVE_SPACE(16); | |
717 | WRITE32(OP_GETATTR); | |
718 | WRITE32(2); | |
719 | WRITE32(bm0); | |
720 | WRITE32(bm1); | |
721 | return 0; | |
722 | } | |
723 | ||
724 | static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) | |
725 | { | |
1da177e4 LT |
726 | return encode_getattr_two(xdr, |
727 | bitmask[0] & nfs4_fattr_bitmap[0], | |
728 | bitmask[1] & nfs4_fattr_bitmap[1]); | |
729 | } | |
730 | ||
731 | static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) | |
732 | { | |
1da177e4 LT |
733 | return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
734 | bitmask[1] & nfs4_fsinfo_bitmap[1]); | |
735 | } | |
736 | ||
830b8e33 MN |
737 | static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) |
738 | { | |
739 | return encode_getattr_two(xdr, | |
740 | bitmask[0] & nfs4_fs_locations_bitmap[0], | |
741 | bitmask[1] & nfs4_fs_locations_bitmap[1]); | |
742 | } | |
743 | ||
1da177e4 LT |
744 | static int encode_getfh(struct xdr_stream *xdr) |
745 | { | |
8687b63a | 746 | __be32 *p; |
1da177e4 LT |
747 | |
748 | RESERVE_SPACE(4); | |
749 | WRITE32(OP_GETFH); | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | static int encode_link(struct xdr_stream *xdr, const struct qstr *name) | |
755 | { | |
8687b63a | 756 | __be32 *p; |
1da177e4 LT |
757 | |
758 | RESERVE_SPACE(8 + name->len); | |
759 | WRITE32(OP_LINK); | |
760 | WRITE32(name->len); | |
761 | WRITEMEM(name->name, name->len); | |
762 | ||
763 | return 0; | |
764 | } | |
765 | ||
911d1aaf TM |
766 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
767 | { | |
768 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
769 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
770 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
771 | } | |
772 | ||
773 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
774 | { | |
775 | if (fl->fl_end == OFFSET_MAX) | |
776 | return ~(uint64_t)0; | |
777 | return fl->fl_end - fl->fl_start + 1; | |
778 | } | |
779 | ||
1da177e4 LT |
780 | /* |
781 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
782 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
783 | */ | |
911d1aaf | 784 | static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) |
1da177e4 | 785 | { |
8687b63a | 786 | __be32 *p; |
1da177e4 LT |
787 | |
788 | RESERVE_SPACE(32); | |
789 | WRITE32(OP_LOCK); | |
911d1aaf TM |
790 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
791 | WRITE32(args->reclaim); | |
792 | WRITE64(args->fl->fl_start); | |
793 | WRITE64(nfs4_lock_length(args->fl)); | |
794 | WRITE32(args->new_lock_owner); | |
795 | if (args->new_lock_owner){ | |
8ae20abd | 796 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+20); |
911d1aaf | 797 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 798 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
799 | WRITE32(args->lock_seqid->sequence->counter); |
800 | WRITE64(args->lock_owner.clientid); | |
1da177e4 | 801 | WRITE32(4); |
911d1aaf | 802 | WRITE32(args->lock_owner.id); |
1da177e4 LT |
803 | } |
804 | else { | |
8ae20abd TM |
805 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
806 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 807 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 LT |
808 | } |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
911d1aaf | 813 | static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) |
1da177e4 | 814 | { |
8687b63a | 815 | __be32 *p; |
1da177e4 LT |
816 | |
817 | RESERVE_SPACE(40); | |
818 | WRITE32(OP_LOCKT); | |
911d1aaf TM |
819 | WRITE32(nfs4_lock_type(args->fl, 0)); |
820 | WRITE64(args->fl->fl_start); | |
821 | WRITE64(nfs4_lock_length(args->fl)); | |
822 | WRITE64(args->lock_owner.clientid); | |
1da177e4 | 823 | WRITE32(4); |
911d1aaf | 824 | WRITE32(args->lock_owner.id); |
1da177e4 LT |
825 | |
826 | return 0; | |
827 | } | |
828 | ||
911d1aaf | 829 | static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) |
1da177e4 | 830 | { |
8687b63a | 831 | __be32 *p; |
1da177e4 | 832 | |
8ae20abd | 833 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 834 | WRITE32(OP_LOCKU); |
911d1aaf TM |
835 | WRITE32(nfs4_lock_type(args->fl, 0)); |
836 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 837 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
838 | WRITE64(args->fl->fl_start); |
839 | WRITE64(nfs4_lock_length(args->fl)); | |
1da177e4 LT |
840 | |
841 | return 0; | |
842 | } | |
843 | ||
844 | static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) | |
845 | { | |
846 | int len = name->len; | |
8687b63a | 847 | __be32 *p; |
1da177e4 LT |
848 | |
849 | RESERVE_SPACE(8 + len); | |
850 | WRITE32(OP_LOOKUP); | |
851 | WRITE32(len); | |
852 | WRITEMEM(name->name, len); | |
853 | ||
854 | return 0; | |
855 | } | |
856 | ||
857 | static void encode_share_access(struct xdr_stream *xdr, int open_flags) | |
858 | { | |
8687b63a | 859 | __be32 *p; |
1da177e4 LT |
860 | |
861 | RESERVE_SPACE(8); | |
862 | switch (open_flags & (FMODE_READ|FMODE_WRITE)) { | |
863 | case FMODE_READ: | |
864 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
865 | break; | |
866 | case FMODE_WRITE: | |
867 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
868 | break; | |
869 | case FMODE_READ|FMODE_WRITE: | |
870 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
871 | break; | |
872 | default: | |
873 | BUG(); | |
874 | } | |
875 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
876 | } | |
877 | ||
878 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
879 | { | |
8687b63a | 880 | __be32 *p; |
1da177e4 LT |
881 | /* |
882 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
883 | * owner 4 = 32 | |
884 | */ | |
885 | RESERVE_SPACE(8); | |
886 | WRITE32(OP_OPEN); | |
cee54fc9 | 887 | WRITE32(arg->seqid->sequence->counter); |
1da177e4 LT |
888 | encode_share_access(xdr, arg->open_flags); |
889 | RESERVE_SPACE(16); | |
890 | WRITE64(arg->clientid); | |
891 | WRITE32(4); | |
892 | WRITE32(arg->id); | |
893 | } | |
894 | ||
895 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
896 | { | |
8687b63a | 897 | __be32 *p; |
1da177e4 LT |
898 | |
899 | RESERVE_SPACE(4); | |
900 | switch(arg->open_flags & O_EXCL) { | |
901 | case 0: | |
902 | WRITE32(NFS4_CREATE_UNCHECKED); | |
903 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
904 | break; | |
905 | default: | |
906 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
907 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
908 | } | |
909 | } | |
910 | ||
911 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
912 | { | |
8687b63a | 913 | __be32 *p; |
1da177e4 LT |
914 | |
915 | RESERVE_SPACE(4); | |
916 | switch (arg->open_flags & O_CREAT) { | |
917 | case 0: | |
918 | WRITE32(NFS4_OPEN_NOCREATE); | |
919 | break; | |
920 | default: | |
921 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
922 | WRITE32(NFS4_OPEN_CREATE); | |
923 | encode_createmode(xdr, arg); | |
924 | } | |
925 | } | |
926 | ||
927 | static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) | |
928 | { | |
8687b63a | 929 | __be32 *p; |
1da177e4 LT |
930 | |
931 | RESERVE_SPACE(4); | |
932 | switch (delegation_type) { | |
933 | case 0: | |
934 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
935 | break; | |
936 | case FMODE_READ: | |
937 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
938 | break; | |
939 | case FMODE_WRITE|FMODE_READ: | |
940 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
941 | break; | |
942 | default: | |
943 | BUG(); | |
944 | } | |
945 | } | |
946 | ||
947 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
948 | { | |
8687b63a | 949 | __be32 *p; |
1da177e4 LT |
950 | |
951 | RESERVE_SPACE(4); | |
952 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
953 | encode_string(xdr, name->len, name->name); | |
954 | } | |
955 | ||
956 | static inline void encode_claim_previous(struct xdr_stream *xdr, int type) | |
957 | { | |
8687b63a | 958 | __be32 *p; |
1da177e4 LT |
959 | |
960 | RESERVE_SPACE(4); | |
961 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
962 | encode_delegation_type(xdr, type); | |
963 | } | |
964 | ||
965 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
966 | { | |
8687b63a | 967 | __be32 *p; |
1da177e4 | 968 | |
8ae20abd | 969 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 970 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 971 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
972 | encode_string(xdr, name->len, name->name); |
973 | } | |
974 | ||
975 | static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
976 | { | |
977 | encode_openhdr(xdr, arg); | |
978 | encode_opentype(xdr, arg); | |
979 | switch (arg->claim) { | |
980 | case NFS4_OPEN_CLAIM_NULL: | |
981 | encode_claim_null(xdr, arg->name); | |
982 | break; | |
983 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
984 | encode_claim_previous(xdr, arg->u.delegation_type); | |
985 | break; | |
986 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
987 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
988 | break; | |
989 | default: | |
990 | BUG(); | |
991 | } | |
992 | return 0; | |
993 | } | |
994 | ||
995 | static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) | |
996 | { | |
8687b63a | 997 | __be32 *p; |
1da177e4 | 998 | |
8ae20abd | 999 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1000 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1001 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1002 | WRITE32(arg->seqid->sequence->counter); |
1da177e4 LT |
1003 | |
1004 | return 0; | |
1005 | } | |
1006 | ||
1007 | static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) | |
1008 | { | |
8687b63a | 1009 | __be32 *p; |
1da177e4 | 1010 | |
8ae20abd | 1011 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1012 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1013 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1014 | WRITE32(arg->seqid->sequence->counter); |
1da177e4 LT |
1015 | encode_share_access(xdr, arg->open_flags); |
1016 | return 0; | |
1017 | } | |
1018 | ||
1019 | static int | |
1020 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) | |
1021 | { | |
1022 | int len = fh->size; | |
8687b63a | 1023 | __be32 *p; |
1da177e4 LT |
1024 | |
1025 | RESERVE_SPACE(8 + len); | |
1026 | WRITE32(OP_PUTFH); | |
1027 | WRITE32(len); | |
1028 | WRITEMEM(fh->data, len); | |
1029 | ||
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | static int encode_putrootfh(struct xdr_stream *xdr) | |
1034 | { | |
8687b63a | 1035 | __be32 *p; |
1da177e4 LT |
1036 | |
1037 | RESERVE_SPACE(4); | |
1038 | WRITE32(OP_PUTROOTFH); | |
1039 | ||
1040 | return 0; | |
1041 | } | |
1042 | ||
1043 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1044 | { | |
1da177e4 | 1045 | nfs4_stateid stateid; |
8687b63a | 1046 | __be32 *p; |
1da177e4 | 1047 | |
8ae20abd | 1048 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1049 | if (ctx->state != NULL) { |
1050 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1051 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1052 | } else |
8ae20abd | 1053 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1054 | } |
1055 | ||
1056 | static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) | |
1057 | { | |
8687b63a | 1058 | __be32 *p; |
1da177e4 LT |
1059 | |
1060 | RESERVE_SPACE(4); | |
1061 | WRITE32(OP_READ); | |
1062 | ||
1063 | encode_stateid(xdr, args->context); | |
1064 | ||
1065 | RESERVE_SPACE(12); | |
1066 | WRITE64(args->offset); | |
1067 | WRITE32(args->count); | |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) | |
1073 | { | |
1be27f36 | 1074 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
97d312d0 MN |
1075 | uint32_t attrs[2] = { |
1076 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1077 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1078 | }; | |
1da177e4 | 1079 | int replen; |
8687b63a | 1080 | __be32 *p; |
1da177e4 | 1081 | |
8ae20abd | 1082 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1083 | WRITE32(OP_READDIR); |
1084 | WRITE64(readdir->cookie); | |
8ae20abd | 1085 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1086 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1087 | WRITE32(readdir->count); | |
1088 | WRITE32(2); | |
97d312d0 MN |
1089 | /* Switch to mounted_on_fileid if the server supports it */ |
1090 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1091 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1092 | else | |
1093 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1094 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1095 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
eadf4598 TM |
1096 | dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", |
1097 | __FUNCTION__, | |
1098 | (unsigned long long)readdir->cookie, | |
1099 | ((u32 *)readdir->verifier.data)[0], | |
1100 | ((u32 *)readdir->verifier.data)[1], | |
1101 | attrs[0] & readdir->bitmask[0], | |
1102 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1103 | |
1104 | /* set up reply kvec | |
1105 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1106 | * + OP_READDIR + status + verifer(2) = 9 | |
1107 | */ | |
1108 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; | |
1109 | xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, | |
1110 | readdir->pgbase, readdir->count); | |
eadf4598 TM |
1111 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", |
1112 | __FUNCTION__, replen, readdir->pages, | |
1113 | readdir->pgbase, readdir->count); | |
1da177e4 LT |
1114 | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) | |
1119 | { | |
1be27f36 | 1120 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 | 1121 | unsigned int replen; |
8687b63a | 1122 | __be32 *p; |
1da177e4 LT |
1123 | |
1124 | RESERVE_SPACE(4); | |
1125 | WRITE32(OP_READLINK); | |
1126 | ||
1127 | /* set up reply kvec | |
1128 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1129 | * + OP_READLINK + status + string length = 8 | |
1130 | */ | |
1131 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; | |
1132 | xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, | |
1133 | readlink->pgbase, readlink->pglen); | |
1134 | ||
1135 | return 0; | |
1136 | } | |
1137 | ||
1138 | static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) | |
1139 | { | |
8687b63a | 1140 | __be32 *p; |
1da177e4 LT |
1141 | |
1142 | RESERVE_SPACE(8 + name->len); | |
1143 | WRITE32(OP_REMOVE); | |
1144 | WRITE32(name->len); | |
1145 | WRITEMEM(name->name, name->len); | |
1146 | ||
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) | |
1151 | { | |
8687b63a | 1152 | __be32 *p; |
1da177e4 LT |
1153 | |
1154 | RESERVE_SPACE(8 + oldname->len); | |
1155 | WRITE32(OP_RENAME); | |
1156 | WRITE32(oldname->len); | |
1157 | WRITEMEM(oldname->name, oldname->len); | |
1158 | ||
1159 | RESERVE_SPACE(4 + newname->len); | |
1160 | WRITE32(newname->len); | |
1161 | WRITEMEM(newname->name, newname->len); | |
1162 | ||
1163 | return 0; | |
1164 | } | |
1165 | ||
adfa6f98 | 1166 | static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) |
1da177e4 | 1167 | { |
8687b63a | 1168 | __be32 *p; |
1da177e4 LT |
1169 | |
1170 | RESERVE_SPACE(12); | |
1171 | WRITE32(OP_RENEW); | |
1172 | WRITE64(client_stateid->cl_clientid); | |
1173 | ||
1174 | return 0; | |
1175 | } | |
1176 | ||
56ae19f3 TM |
1177 | static int |
1178 | encode_restorefh(struct xdr_stream *xdr) | |
1179 | { | |
8687b63a | 1180 | __be32 *p; |
56ae19f3 TM |
1181 | |
1182 | RESERVE_SPACE(4); | |
1183 | WRITE32(OP_RESTOREFH); | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
23ec6965 BF |
1188 | static int |
1189 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) | |
1190 | { | |
8687b63a | 1191 | __be32 *p; |
23ec6965 | 1192 | |
8ae20abd | 1193 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1194 | WRITE32(OP_SETATTR); |
8ae20abd | 1195 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1196 | RESERVE_SPACE(2*4); |
1197 | WRITE32(1); | |
1198 | WRITE32(FATTR4_WORD0_ACL); | |
1199 | if (arg->acl_len % 4) | |
1200 | return -EINVAL; | |
1201 | RESERVE_SPACE(4); | |
1202 | WRITE32(arg->acl_len); | |
1203 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
1204 | return 0; | |
1205 | } | |
1206 | ||
1da177e4 LT |
1207 | static int |
1208 | encode_savefh(struct xdr_stream *xdr) | |
1209 | { | |
8687b63a | 1210 | __be32 *p; |
1da177e4 LT |
1211 | |
1212 | RESERVE_SPACE(4); | |
1213 | WRITE32(OP_SAVEFH); | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) | |
1219 | { | |
1220 | int status; | |
8687b63a | 1221 | __be32 *p; |
1da177e4 | 1222 | |
8ae20abd | 1223 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1224 | WRITE32(OP_SETATTR); |
8ae20abd | 1225 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1226 | |
1227 | if ((status = encode_attrs(xdr, arg->iap, server))) | |
1228 | return status; | |
1229 | ||
1230 | return 0; | |
1231 | } | |
1232 | ||
1233 | static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) | |
1234 | { | |
8687b63a | 1235 | __be32 *p; |
1da177e4 | 1236 | |
8ae20abd | 1237 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1238 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1239 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1240 | |
1241 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1242 | RESERVE_SPACE(4); | |
1243 | WRITE32(setclientid->sc_prog); | |
1244 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1245 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1246 | RESERVE_SPACE(4); | |
1247 | WRITE32(setclientid->sc_cb_ident); | |
1248 | ||
1249 | return 0; | |
1250 | } | |
1251 | ||
adfa6f98 | 1252 | static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) |
1da177e4 | 1253 | { |
8687b63a | 1254 | __be32 *p; |
1da177e4 | 1255 | |
8ae20abd | 1256 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1257 | WRITE32(OP_SETCLIENTID_CONFIRM); |
1258 | WRITE64(client_state->cl_clientid); | |
8ae20abd | 1259 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1260 | |
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) | |
1265 | { | |
8687b63a | 1266 | __be32 *p; |
1da177e4 LT |
1267 | |
1268 | RESERVE_SPACE(4); | |
1269 | WRITE32(OP_WRITE); | |
1270 | ||
1271 | encode_stateid(xdr, args->context); | |
1272 | ||
1273 | RESERVE_SPACE(16); | |
1274 | WRITE64(args->offset); | |
1275 | WRITE32(args->stable); | |
1276 | WRITE32(args->count); | |
1277 | ||
1278 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
1279 | ||
1280 | return 0; | |
1281 | } | |
1282 | ||
1283 | static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) | |
1284 | { | |
8687b63a | 1285 | __be32 *p; |
1da177e4 | 1286 | |
8ae20abd | 1287 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1288 | |
1289 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1290 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1291 | return 0; |
1292 | ||
1293 | } | |
1294 | /* | |
1295 | * END OF "GENERIC" ENCODE ROUTINES. | |
1296 | */ | |
1297 | ||
1298 | /* | |
1299 | * Encode an ACCESS request | |
1300 | */ | |
8687b63a | 1301 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1302 | { |
1303 | struct xdr_stream xdr; | |
1304 | struct compound_hdr hdr = { | |
1305 | .nops = 2, | |
1306 | }; | |
1307 | int status; | |
1308 | ||
1309 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1310 | encode_compound_hdr(&xdr, &hdr); | |
1311 | if ((status = encode_putfh(&xdr, args->fh)) == 0) | |
1312 | status = encode_access(&xdr, args->access); | |
1313 | return status; | |
1314 | } | |
1315 | ||
1316 | /* | |
1317 | * Encode LOOKUP request | |
1318 | */ | |
8687b63a | 1319 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1320 | { |
1321 | struct xdr_stream xdr; | |
1322 | struct compound_hdr hdr = { | |
1323 | .nops = 4, | |
1324 | }; | |
1325 | int status; | |
1326 | ||
1327 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1328 | encode_compound_hdr(&xdr, &hdr); | |
1329 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
1330 | goto out; | |
1331 | if ((status = encode_lookup(&xdr, args->name)) != 0) | |
1332 | goto out; | |
1333 | if ((status = encode_getfh(&xdr)) != 0) | |
1334 | goto out; | |
1335 | status = encode_getfattr(&xdr, args->bitmask); | |
1336 | out: | |
1337 | return status; | |
1338 | } | |
1339 | ||
1340 | /* | |
1341 | * Encode LOOKUP_ROOT request | |
1342 | */ | |
8687b63a | 1343 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1344 | { |
1345 | struct xdr_stream xdr; | |
1346 | struct compound_hdr hdr = { | |
1347 | .nops = 3, | |
1348 | }; | |
1349 | int status; | |
1350 | ||
1351 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1352 | encode_compound_hdr(&xdr, &hdr); | |
1353 | if ((status = encode_putrootfh(&xdr)) != 0) | |
1354 | goto out; | |
1355 | if ((status = encode_getfh(&xdr)) == 0) | |
1356 | status = encode_getfattr(&xdr, args->bitmask); | |
1357 | out: | |
1358 | return status; | |
1359 | } | |
1360 | ||
1361 | /* | |
1362 | * Encode REMOVE request | |
1363 | */ | |
8687b63a | 1364 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs4_remove_arg *args) |
1da177e4 LT |
1365 | { |
1366 | struct xdr_stream xdr; | |
1367 | struct compound_hdr hdr = { | |
16e42959 | 1368 | .nops = 3, |
1da177e4 LT |
1369 | }; |
1370 | int status; | |
1371 | ||
1372 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1373 | encode_compound_hdr(&xdr, &hdr); | |
16e42959 TM |
1374 | if ((status = encode_putfh(&xdr, args->fh)) != 0) |
1375 | goto out; | |
1376 | if ((status = encode_remove(&xdr, args->name)) != 0) | |
1377 | goto out; | |
1378 | status = encode_getfattr(&xdr, args->bitmask); | |
1379 | out: | |
1da177e4 LT |
1380 | return status; |
1381 | } | |
1382 | ||
1383 | /* | |
1384 | * Encode RENAME request | |
1385 | */ | |
8687b63a | 1386 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1387 | { |
1388 | struct xdr_stream xdr; | |
1389 | struct compound_hdr hdr = { | |
6caf2c82 | 1390 | .nops = 7, |
1da177e4 LT |
1391 | }; |
1392 | int status; | |
1393 | ||
1394 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1395 | encode_compound_hdr(&xdr, &hdr); | |
1396 | if ((status = encode_putfh(&xdr, args->old_dir)) != 0) | |
1397 | goto out; | |
1398 | if ((status = encode_savefh(&xdr)) != 0) | |
1399 | goto out; | |
1400 | if ((status = encode_putfh(&xdr, args->new_dir)) != 0) | |
1401 | goto out; | |
6caf2c82 TM |
1402 | if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) |
1403 | goto out; | |
1404 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) | |
1405 | goto out; | |
1406 | if ((status = encode_restorefh(&xdr)) != 0) | |
1407 | goto out; | |
1408 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1409 | out: |
1410 | return status; | |
1411 | } | |
1412 | ||
1413 | /* | |
1414 | * Encode LINK request | |
1415 | */ | |
8687b63a | 1416 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1417 | { |
1418 | struct xdr_stream xdr; | |
1419 | struct compound_hdr hdr = { | |
91ba2eee | 1420 | .nops = 7, |
1da177e4 LT |
1421 | }; |
1422 | int status; | |
1423 | ||
1424 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1425 | encode_compound_hdr(&xdr, &hdr); | |
1426 | if ((status = encode_putfh(&xdr, args->fh)) != 0) | |
1427 | goto out; | |
1428 | if ((status = encode_savefh(&xdr)) != 0) | |
1429 | goto out; | |
1430 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
1431 | goto out; | |
91ba2eee TM |
1432 | if ((status = encode_link(&xdr, args->name)) != 0) |
1433 | goto out; | |
1434 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) | |
1435 | goto out; | |
1436 | if ((status = encode_restorefh(&xdr)) != 0) | |
1437 | goto out; | |
1438 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1439 | out: |
1440 | return status; | |
1441 | } | |
1442 | ||
1443 | /* | |
1444 | * Encode CREATE request | |
1445 | */ | |
8687b63a | 1446 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1447 | { |
1448 | struct xdr_stream xdr; | |
1449 | struct compound_hdr hdr = { | |
56ae19f3 | 1450 | .nops = 7, |
1da177e4 LT |
1451 | }; |
1452 | int status; | |
1453 | ||
1454 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1455 | encode_compound_hdr(&xdr, &hdr); | |
1456 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
1457 | goto out; | |
56ae19f3 TM |
1458 | if ((status = encode_savefh(&xdr)) != 0) |
1459 | goto out; | |
1da177e4 LT |
1460 | if ((status = encode_create(&xdr, args)) != 0) |
1461 | goto out; | |
1462 | if ((status = encode_getfh(&xdr)) != 0) | |
1463 | goto out; | |
56ae19f3 TM |
1464 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
1465 | goto out; | |
1466 | if ((status = encode_restorefh(&xdr)) != 0) | |
1467 | goto out; | |
1da177e4 LT |
1468 | status = encode_getfattr(&xdr, args->bitmask); |
1469 | out: | |
1470 | return status; | |
1471 | } | |
1472 | ||
1473 | /* | |
1474 | * Encode SYMLINK request | |
1475 | */ | |
8687b63a | 1476 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1477 | { |
1478 | return nfs4_xdr_enc_create(req, p, args); | |
1479 | } | |
1480 | ||
1481 | /* | |
1482 | * Encode GETATTR request | |
1483 | */ | |
8687b63a | 1484 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1485 | { |
1486 | struct xdr_stream xdr; | |
1487 | struct compound_hdr hdr = { | |
1488 | .nops = 2, | |
1489 | }; | |
1490 | int status; | |
1491 | ||
1492 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1493 | encode_compound_hdr(&xdr, &hdr); | |
1494 | if ((status = encode_putfh(&xdr, args->fh)) == 0) | |
1495 | status = encode_getfattr(&xdr, args->bitmask); | |
1496 | return status; | |
1497 | } | |
1498 | ||
1499 | /* | |
1500 | * Encode a CLOSE request | |
1501 | */ | |
8687b63a | 1502 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1503 | { |
1504 | struct xdr_stream xdr; | |
1505 | struct compound_hdr hdr = { | |
516a6af6 | 1506 | .nops = 3, |
1da177e4 LT |
1507 | }; |
1508 | int status; | |
1509 | ||
1510 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1511 | encode_compound_hdr(&xdr, &hdr); | |
1512 | status = encode_putfh(&xdr, args->fh); | |
1513 | if(status) | |
1514 | goto out; | |
1515 | status = encode_close(&xdr, args); | |
516a6af6 TM |
1516 | if (status != 0) |
1517 | goto out; | |
1518 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1519 | out: |
1520 | return status; | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * Encode an OPEN request | |
1525 | */ | |
8687b63a | 1526 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1527 | { |
1528 | struct xdr_stream xdr; | |
1529 | struct compound_hdr hdr = { | |
56ae19f3 | 1530 | .nops = 7, |
1da177e4 LT |
1531 | }; |
1532 | int status; | |
1533 | ||
1534 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1535 | encode_compound_hdr(&xdr, &hdr); | |
1536 | status = encode_putfh(&xdr, args->fh); | |
56ae19f3 TM |
1537 | if (status) |
1538 | goto out; | |
1539 | status = encode_savefh(&xdr); | |
1da177e4 LT |
1540 | if (status) |
1541 | goto out; | |
1542 | status = encode_open(&xdr, args); | |
1543 | if (status) | |
1544 | goto out; | |
1545 | status = encode_getfh(&xdr); | |
1546 | if (status) | |
1547 | goto out; | |
1548 | status = encode_getfattr(&xdr, args->bitmask); | |
56ae19f3 TM |
1549 | if (status) |
1550 | goto out; | |
1551 | status = encode_restorefh(&xdr); | |
1552 | if (status) | |
1553 | goto out; | |
1554 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1555 | out: |
1556 | return status; | |
1557 | } | |
1558 | ||
1559 | /* | |
1560 | * Encode an OPEN_CONFIRM request | |
1561 | */ | |
8687b63a | 1562 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1563 | { |
1564 | struct xdr_stream xdr; | |
1565 | struct compound_hdr hdr = { | |
1566 | .nops = 2, | |
1567 | }; | |
1568 | int status; | |
1569 | ||
1570 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1571 | encode_compound_hdr(&xdr, &hdr); | |
1572 | status = encode_putfh(&xdr, args->fh); | |
1573 | if(status) | |
1574 | goto out; | |
1575 | status = encode_open_confirm(&xdr, args); | |
1576 | out: | |
1577 | return status; | |
1578 | } | |
1579 | ||
1580 | /* | |
1581 | * Encode an OPEN request with no attributes. | |
1582 | */ | |
8687b63a | 1583 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1584 | { |
1585 | struct xdr_stream xdr; | |
1586 | struct compound_hdr hdr = { | |
864472e9 | 1587 | .nops = 3, |
1da177e4 LT |
1588 | }; |
1589 | int status; | |
1590 | ||
1591 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1592 | encode_compound_hdr(&xdr, &hdr); | |
1593 | status = encode_putfh(&xdr, args->fh); | |
1594 | if (status) | |
1595 | goto out; | |
1596 | status = encode_open(&xdr, args); | |
864472e9 TM |
1597 | if (status) |
1598 | goto out; | |
1599 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1600 | out: |
1601 | return status; | |
1602 | } | |
1603 | ||
1604 | /* | |
1605 | * Encode an OPEN_DOWNGRADE request | |
1606 | */ | |
8687b63a | 1607 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1608 | { |
1609 | struct xdr_stream xdr; | |
1610 | struct compound_hdr hdr = { | |
516a6af6 | 1611 | .nops = 3, |
1da177e4 LT |
1612 | }; |
1613 | int status; | |
1614 | ||
1615 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1616 | encode_compound_hdr(&xdr, &hdr); | |
1617 | status = encode_putfh(&xdr, args->fh); | |
1618 | if (status) | |
1619 | goto out; | |
1620 | status = encode_open_downgrade(&xdr, args); | |
516a6af6 TM |
1621 | if (status != 0) |
1622 | goto out; | |
1623 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1624 | out: |
1625 | return status; | |
1626 | } | |
1627 | ||
1628 | /* | |
1629 | * Encode a LOCK request | |
1630 | */ | |
8687b63a | 1631 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1632 | { |
1633 | struct xdr_stream xdr; | |
1634 | struct compound_hdr hdr = { | |
1635 | .nops = 2, | |
1636 | }; | |
1637 | int status; | |
1638 | ||
1639 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1640 | encode_compound_hdr(&xdr, &hdr); | |
1641 | status = encode_putfh(&xdr, args->fh); | |
1642 | if(status) | |
1643 | goto out; | |
1644 | status = encode_lock(&xdr, args); | |
1645 | out: | |
1646 | return status; | |
1647 | } | |
1648 | ||
1649 | /* | |
1650 | * Encode a LOCKT request | |
1651 | */ | |
8687b63a | 1652 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1653 | { |
1654 | struct xdr_stream xdr; | |
1655 | struct compound_hdr hdr = { | |
1656 | .nops = 2, | |
1657 | }; | |
1658 | int status; | |
1659 | ||
1660 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1661 | encode_compound_hdr(&xdr, &hdr); | |
1662 | status = encode_putfh(&xdr, args->fh); | |
1663 | if(status) | |
1664 | goto out; | |
1665 | status = encode_lockt(&xdr, args); | |
1666 | out: | |
1667 | return status; | |
1668 | } | |
1669 | ||
1670 | /* | |
1671 | * Encode a LOCKU request | |
1672 | */ | |
8687b63a | 1673 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1674 | { |
1675 | struct xdr_stream xdr; | |
1676 | struct compound_hdr hdr = { | |
1677 | .nops = 2, | |
1678 | }; | |
1679 | int status; | |
1680 | ||
1681 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1682 | encode_compound_hdr(&xdr, &hdr); | |
1683 | status = encode_putfh(&xdr, args->fh); | |
1684 | if(status) | |
1685 | goto out; | |
1686 | status = encode_locku(&xdr, args); | |
1687 | out: | |
1688 | return status; | |
1689 | } | |
1690 | ||
1691 | /* | |
1692 | * Encode a READLINK request | |
1693 | */ | |
8687b63a | 1694 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1695 | { |
1696 | struct xdr_stream xdr; | |
1697 | struct compound_hdr hdr = { | |
1698 | .nops = 2, | |
1699 | }; | |
1700 | int status; | |
1701 | ||
1702 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1703 | encode_compound_hdr(&xdr, &hdr); | |
1704 | status = encode_putfh(&xdr, args->fh); | |
1705 | if(status) | |
1706 | goto out; | |
1707 | status = encode_readlink(&xdr, args, req); | |
1708 | out: | |
1709 | return status; | |
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 = { | |
1719 | .nops = 2, | |
1720 | }; | |
1721 | int status; | |
1722 | ||
1723 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1724 | encode_compound_hdr(&xdr, &hdr); | |
1725 | status = encode_putfh(&xdr, args->fh); | |
1726 | if(status) | |
1727 | goto out; | |
1728 | status = encode_readdir(&xdr, args, req); | |
1729 | out: | |
1730 | return status; | |
1731 | } | |
1732 | ||
1733 | /* | |
1734 | * Encode a READ request | |
1735 | */ | |
8687b63a | 1736 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1737 | { |
1be27f36 | 1738 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 LT |
1739 | struct xdr_stream xdr; |
1740 | struct compound_hdr hdr = { | |
1741 | .nops = 2, | |
1742 | }; | |
1743 | int replen, status; | |
1744 | ||
1745 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1746 | encode_compound_hdr(&xdr, &hdr); | |
1747 | status = encode_putfh(&xdr, args->fh); | |
1748 | if (status) | |
1749 | goto out; | |
1750 | status = encode_read(&xdr, args); | |
1751 | if (status) | |
1752 | goto out; | |
1753 | ||
1754 | /* set up reply kvec | |
1755 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status | |
1756 | * + OP_READ + status + eof + datalen = 9 | |
1757 | */ | |
1758 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; | |
1759 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1760 | args->pages, args->pgbase, args->count); | |
1761 | out: | |
1762 | return status; | |
1763 | } | |
1764 | ||
1765 | /* | |
1766 | * Encode an SETATTR request | |
1767 | */ | |
8687b63a | 1768 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 LT |
1769 | |
1770 | { | |
1771 | struct xdr_stream xdr; | |
1772 | struct compound_hdr hdr = { | |
1773 | .nops = 3, | |
1774 | }; | |
1775 | int status; | |
1776 | ||
1777 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1778 | encode_compound_hdr(&xdr, &hdr); | |
1779 | status = encode_putfh(&xdr, args->fh); | |
1780 | if(status) | |
1781 | goto out; | |
1782 | status = encode_setattr(&xdr, args, args->server); | |
1783 | if(status) | |
1784 | goto out; | |
1785 | status = encode_getfattr(&xdr, args->bitmask); | |
1786 | out: | |
1787 | return status; | |
1788 | } | |
1789 | ||
029d105e BF |
1790 | /* |
1791 | * Encode a GETACL request | |
1792 | */ | |
1793 | static int | |
8687b63a | 1794 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1795 | struct nfs_getaclargs *args) |
1796 | { | |
1797 | struct xdr_stream xdr; | |
1be27f36 | 1798 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
029d105e BF |
1799 | struct compound_hdr hdr = { |
1800 | .nops = 2, | |
1801 | }; | |
1802 | int replen, status; | |
1803 | ||
1804 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1805 | encode_compound_hdr(&xdr, &hdr); | |
1806 | status = encode_putfh(&xdr, args->fh); | |
1807 | if (status) | |
1808 | goto out; | |
1809 | status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); | |
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); | |
1814 | out: | |
1815 | return status; | |
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 = { | |
4f9838c7 | 1825 | .nops = 3, |
1da177e4 LT |
1826 | }; |
1827 | int status; | |
1828 | ||
1829 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1830 | encode_compound_hdr(&xdr, &hdr); | |
1831 | status = encode_putfh(&xdr, args->fh); | |
1832 | if (status) | |
1833 | goto out; | |
1834 | status = encode_write(&xdr, args); | |
4f9838c7 TM |
1835 | if (status) |
1836 | goto out; | |
1837 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1838 | out: |
1839 | return status; | |
1840 | } | |
1841 | ||
1842 | /* | |
1843 | * a COMMIT request | |
1844 | */ | |
8687b63a | 1845 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1846 | { |
1847 | struct xdr_stream xdr; | |
1848 | struct compound_hdr hdr = { | |
4f9838c7 | 1849 | .nops = 3, |
1da177e4 LT |
1850 | }; |
1851 | int status; | |
1852 | ||
1853 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1854 | encode_compound_hdr(&xdr, &hdr); | |
1855 | status = encode_putfh(&xdr, args->fh); | |
1856 | if (status) | |
1857 | goto out; | |
1858 | status = encode_commit(&xdr, args); | |
4f9838c7 TM |
1859 | if (status) |
1860 | goto out; | |
1861 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1862 | out: |
1863 | return status; | |
1864 | } | |
1865 | ||
1866 | /* | |
1867 | * FSINFO request | |
1868 | */ | |
8687b63a | 1869 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
1870 | { |
1871 | struct xdr_stream xdr; | |
1872 | struct compound_hdr hdr = { | |
1873 | .nops = 2, | |
1874 | }; | |
1875 | int status; | |
1876 | ||
1877 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1878 | encode_compound_hdr(&xdr, &hdr); | |
1879 | status = encode_putfh(&xdr, args->fh); | |
1880 | if (!status) | |
1881 | status = encode_fsinfo(&xdr, args->bitmask); | |
1882 | return status; | |
1883 | } | |
1884 | ||
1885 | /* | |
1886 | * a PATHCONF request | |
1887 | */ | |
8687b63a | 1888 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 1889 | { |
1da177e4 LT |
1890 | struct xdr_stream xdr; |
1891 | struct compound_hdr hdr = { | |
1892 | .nops = 2, | |
1893 | }; | |
1894 | int status; | |
1895 | ||
1896 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1897 | encode_compound_hdr(&xdr, &hdr); | |
1898 | status = encode_putfh(&xdr, args->fh); | |
1899 | if (!status) | |
1900 | status = encode_getattr_one(&xdr, | |
1901 | args->bitmask[0] & nfs4_pathconf_bitmap[0]); | |
1902 | return status; | |
1903 | } | |
1904 | ||
1905 | /* | |
1906 | * a STATFS request | |
1907 | */ | |
8687b63a | 1908 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 1909 | { |
1da177e4 LT |
1910 | struct xdr_stream xdr; |
1911 | struct compound_hdr hdr = { | |
1912 | .nops = 2, | |
1913 | }; | |
1914 | int status; | |
1915 | ||
1916 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1917 | encode_compound_hdr(&xdr, &hdr); | |
1918 | status = encode_putfh(&xdr, args->fh); | |
1919 | if (status == 0) | |
1920 | status = encode_getattr_two(&xdr, | |
1921 | args->bitmask[0] & nfs4_statfs_bitmap[0], | |
1922 | args->bitmask[1] & nfs4_statfs_bitmap[1]); | |
1923 | return status; | |
1924 | } | |
1925 | ||
1926 | /* | |
1927 | * GETATTR_BITMAP request | |
1928 | */ | |
8687b63a | 1929 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) |
1da177e4 LT |
1930 | { |
1931 | struct xdr_stream xdr; | |
1932 | struct compound_hdr hdr = { | |
1933 | .nops = 2, | |
1934 | }; | |
1935 | int status; | |
1936 | ||
1937 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1938 | encode_compound_hdr(&xdr, &hdr); | |
1939 | status = encode_putfh(&xdr, fhandle); | |
1940 | if (status == 0) | |
1941 | status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| | |
1942 | FATTR4_WORD0_LINK_SUPPORT| | |
1943 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
1944 | FATTR4_WORD0_ACLSUPPORT); | |
1945 | return status; | |
1946 | } | |
1947 | ||
1948 | /* | |
1949 | * a RENEW request | |
1950 | */ | |
8687b63a | 1951 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1952 | { |
1953 | struct xdr_stream xdr; | |
1954 | struct compound_hdr hdr = { | |
1955 | .nops = 1, | |
1956 | }; | |
1957 | ||
1958 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1959 | encode_compound_hdr(&xdr, &hdr); | |
1960 | return encode_renew(&xdr, clp); | |
1961 | } | |
1962 | ||
1963 | /* | |
1964 | * a SETCLIENTID request | |
1965 | */ | |
8687b63a | 1966 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
1967 | { |
1968 | struct xdr_stream xdr; | |
1969 | struct compound_hdr hdr = { | |
1970 | .nops = 1, | |
1971 | }; | |
1972 | ||
1973 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1974 | encode_compound_hdr(&xdr, &hdr); | |
1975 | return encode_setclientid(&xdr, sc); | |
1976 | } | |
1977 | ||
1978 | /* | |
1979 | * a SETCLIENTID_CONFIRM request | |
1980 | */ | |
8687b63a | 1981 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1982 | { |
1983 | struct xdr_stream xdr; | |
1984 | struct compound_hdr hdr = { | |
1985 | .nops = 3, | |
1986 | }; | |
1987 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1988 | int status; | |
1989 | ||
1990 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1991 | encode_compound_hdr(&xdr, &hdr); | |
1992 | status = encode_setclientid_confirm(&xdr, clp); | |
1993 | if (!status) | |
1994 | status = encode_putrootfh(&xdr); | |
1995 | if (!status) | |
1996 | status = encode_fsinfo(&xdr, lease_bitmap); | |
1997 | return status; | |
1998 | } | |
1999 | ||
2000 | /* | |
2001 | * DELEGRETURN request | |
2002 | */ | |
8687b63a | 2003 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2004 | { |
2005 | struct xdr_stream xdr; | |
2006 | struct compound_hdr hdr = { | |
fa178f29 | 2007 | .nops = 3, |
1da177e4 LT |
2008 | }; |
2009 | int status; | |
2010 | ||
2011 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2012 | encode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
2013 | status = encode_putfh(&xdr, args->fhandle); |
2014 | if (status != 0) | |
2015 | goto out; | |
2016 | status = encode_delegreturn(&xdr, args->stateid); | |
2017 | if (status != 0) | |
2018 | goto out; | |
2019 | status = encode_getfattr(&xdr, args->bitmask); | |
2020 | out: | |
1da177e4 LT |
2021 | return status; |
2022 | } | |
2023 | ||
683b57b4 TM |
2024 | /* |
2025 | * Encode FS_LOCATIONS request | |
2026 | */ | |
8687b63a | 2027 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2028 | { |
2029 | struct xdr_stream xdr; | |
2030 | struct compound_hdr hdr = { | |
2031 | .nops = 3, | |
2032 | }; | |
1be27f36 | 2033 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
683b57b4 TM |
2034 | int replen; |
2035 | int status; | |
2036 | ||
2037 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2038 | encode_compound_hdr(&xdr, &hdr); | |
2039 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
2040 | goto out; | |
2041 | if ((status = encode_lookup(&xdr, args->name)) != 0) | |
2042 | goto out; | |
830b8e33 | 2043 | if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) |
683b57b4 TM |
2044 | goto out; |
2045 | /* set up reply | |
830b8e33 | 2046 | * toplevel_status + OP_PUTFH + status |
683b57b4 TM |
2047 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
2048 | */ | |
2049 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; | |
2050 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, | |
2051 | 0, PAGE_SIZE); | |
2052 | out: | |
2053 | return status; | |
2054 | } | |
2055 | ||
1da177e4 LT |
2056 | /* |
2057 | * START OF "GENERIC" DECODE ROUTINES. | |
2058 | * These may look a little ugly since they are imported from a "generic" | |
2059 | * set of XDR encode/decode routines which are intended to be shared by | |
2060 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2061 | * | |
2062 | * If the pain of reading these is too great, it should be a straightforward | |
2063 | * task to translate them into Linux-specific versions which are more | |
2064 | * consistent with the style used in NFSv2/v3... | |
2065 | */ | |
2066 | #define READ32(x) (x) = ntohl(*p++) | |
2067 | #define READ64(x) do { \ | |
2068 | (x) = (u64)ntohl(*p++) << 32; \ | |
2069 | (x) |= ntohl(*p++); \ | |
2070 | } while (0) | |
2071 | #define READTIME(x) do { \ | |
2072 | p++; \ | |
2073 | (x.tv_sec) = ntohl(*p++); \ | |
2074 | (x.tv_nsec) = ntohl(*p++); \ | |
2075 | } while (0) | |
2076 | #define COPYMEM(x,nbytes) do { \ | |
2077 | memcpy((x), p, nbytes); \ | |
2078 | p += XDR_QUADLEN(nbytes); \ | |
2079 | } while (0) | |
2080 | ||
2081 | #define READ_BUF(nbytes) do { \ | |
2082 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 CL |
2083 | if (unlikely(!p)) { \ |
2084 | printk(KERN_INFO "%s: prematurely hit end of receive" \ | |
2085 | " buffer\n", __FUNCTION__); \ | |
2086 | printk(KERN_INFO "%s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ | |
2087 | __FUNCTION__, xdr->p, nbytes, xdr->end); \ | |
1da177e4 LT |
2088 | return -EIO; \ |
2089 | } \ | |
2090 | } while (0) | |
2091 | ||
683b57b4 | 2092 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2093 | { |
8687b63a | 2094 | __be32 *p; |
1da177e4 LT |
2095 | |
2096 | READ_BUF(4); | |
2097 | READ32(*len); | |
2098 | READ_BUF(*len); | |
2099 | *string = (char *)p; | |
2100 | return 0; | |
2101 | } | |
2102 | ||
2103 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2104 | { | |
8687b63a | 2105 | __be32 *p; |
1da177e4 LT |
2106 | |
2107 | READ_BUF(8); | |
2108 | READ32(hdr->status); | |
2109 | READ32(hdr->taglen); | |
2110 | ||
2111 | READ_BUF(hdr->taglen + 4); | |
2112 | hdr->tag = (char *)p; | |
2113 | p += XDR_QUADLEN(hdr->taglen); | |
2114 | READ32(hdr->nops); | |
2115 | return 0; | |
2116 | } | |
2117 | ||
2118 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2119 | { | |
8687b63a | 2120 | __be32 *p; |
1da177e4 LT |
2121 | uint32_t opnum; |
2122 | int32_t nfserr; | |
2123 | ||
2124 | READ_BUF(8); | |
2125 | READ32(opnum); | |
2126 | if (opnum != expected) { | |
2127 | printk(KERN_NOTICE | |
2128 | "nfs4_decode_op_hdr: Server returned operation" | |
2129 | " %d but we issued a request for %d\n", | |
2130 | opnum, expected); | |
2131 | return -EIO; | |
2132 | } | |
2133 | READ32(nfserr); | |
2134 | if (nfserr != NFS_OK) | |
0a8ea437 | 2135 | return -nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2136 | return 0; |
2137 | } | |
2138 | ||
2139 | /* Dummy routine */ | |
adfa6f98 | 2140 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2141 | { |
8687b63a | 2142 | __be32 *p; |
683b57b4 | 2143 | unsigned int strlen; |
1da177e4 LT |
2144 | char *str; |
2145 | ||
2146 | READ_BUF(12); | |
2147 | return decode_opaque_inline(xdr, &strlen, &str); | |
2148 | } | |
2149 | ||
2150 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2151 | { | |
8687b63a AV |
2152 | uint32_t bmlen; |
2153 | __be32 *p; | |
1da177e4 LT |
2154 | |
2155 | READ_BUF(4); | |
2156 | READ32(bmlen); | |
2157 | ||
2158 | bitmap[0] = bitmap[1] = 0; | |
2159 | READ_BUF((bmlen << 2)); | |
2160 | if (bmlen > 0) { | |
2161 | READ32(bitmap[0]); | |
2162 | if (bmlen > 1) | |
2163 | READ32(bitmap[1]); | |
2164 | } | |
2165 | return 0; | |
2166 | } | |
2167 | ||
8687b63a | 2168 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2169 | { |
8687b63a | 2170 | __be32 *p; |
1da177e4 LT |
2171 | |
2172 | READ_BUF(4); | |
2173 | READ32(*attrlen); | |
2174 | *savep = xdr->p; | |
2175 | return 0; | |
2176 | } | |
2177 | ||
2178 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2179 | { | |
2180 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2181 | decode_attr_bitmap(xdr, bitmask); | |
2182 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2183 | } else | |
2184 | bitmask[0] = bitmask[1] = 0; | |
2185 | dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); | |
2186 | return 0; | |
2187 | } | |
2188 | ||
2189 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2190 | { | |
8687b63a | 2191 | __be32 *p; |
1da177e4 LT |
2192 | |
2193 | *type = 0; | |
2194 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2195 | return -EIO; | |
2196 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2197 | READ_BUF(4); | |
2198 | READ32(*type); | |
2199 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
2200 | dprintk("%s: bad type %d\n", __FUNCTION__, *type); | |
2201 | return -EIO; | |
2202 | } | |
2203 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
2204 | } | |
2205 | dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); | |
2206 | return 0; | |
2207 | } | |
2208 | ||
2209 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2210 | { | |
8687b63a | 2211 | __be32 *p; |
1da177e4 LT |
2212 | |
2213 | *change = 0; | |
2214 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2215 | return -EIO; | |
2216 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2217 | READ_BUF(8); | |
2218 | READ64(*change); | |
2219 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
2220 | } | |
2221 | dprintk("%s: change attribute=%Lu\n", __FUNCTION__, | |
2222 | (unsigned long long)*change); | |
2223 | return 0; | |
2224 | } | |
2225 | ||
2226 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2227 | { | |
8687b63a | 2228 | __be32 *p; |
1da177e4 LT |
2229 | |
2230 | *size = 0; | |
2231 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2232 | return -EIO; | |
2233 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2234 | READ_BUF(8); | |
2235 | READ64(*size); | |
2236 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
2237 | } | |
2238 | dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); | |
2239 | return 0; | |
2240 | } | |
2241 | ||
2242 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2243 | { | |
8687b63a | 2244 | __be32 *p; |
1da177e4 LT |
2245 | |
2246 | *res = 0; | |
2247 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2248 | return -EIO; | |
2249 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2250 | READ_BUF(4); | |
2251 | READ32(*res); | |
2252 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2253 | } | |
2254 | dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); | |
2255 | return 0; | |
2256 | } | |
2257 | ||
2258 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2259 | { | |
8687b63a | 2260 | __be32 *p; |
1da177e4 LT |
2261 | |
2262 | *res = 0; | |
2263 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2264 | return -EIO; | |
2265 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2266 | READ_BUF(4); | |
2267 | READ32(*res); | |
2268 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2269 | } | |
2270 | dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); | |
2271 | return 0; | |
2272 | } | |
2273 | ||
8b4bdcf8 | 2274 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2275 | { |
8687b63a | 2276 | __be32 *p; |
1da177e4 LT |
2277 | |
2278 | fsid->major = 0; | |
2279 | fsid->minor = 0; | |
2280 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2281 | return -EIO; | |
2282 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2283 | READ_BUF(16); | |
2284 | READ64(fsid->major); | |
2285 | READ64(fsid->minor); | |
2286 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
2287 | } | |
2288 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, | |
2289 | (unsigned long long)fsid->major, | |
2290 | (unsigned long long)fsid->minor); | |
2291 | return 0; | |
2292 | } | |
2293 | ||
2294 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2295 | { | |
8687b63a | 2296 | __be32 *p; |
1da177e4 LT |
2297 | |
2298 | *res = 60; | |
2299 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2300 | return -EIO; | |
2301 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2302 | READ_BUF(4); | |
2303 | READ32(*res); | |
2304 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2305 | } | |
2306 | dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); | |
2307 | return 0; | |
2308 | } | |
2309 | ||
2310 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2311 | { | |
8687b63a | 2312 | __be32 *p; |
1da177e4 LT |
2313 | |
2314 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2315 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2316 | return -EIO; | |
2317 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2318 | READ_BUF(4); | |
2319 | READ32(*res); | |
2320 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2321 | } | |
2322 | dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); | |
2323 | return 0; | |
2324 | } | |
2325 | ||
2326 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2327 | { | |
8687b63a | 2328 | __be32 *p; |
1da177e4 LT |
2329 | |
2330 | *fileid = 0; | |
2331 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2332 | return -EIO; | |
2333 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2334 | READ_BUF(8); | |
2335 | READ64(*fileid); | |
2336 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
2337 | } | |
2338 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); | |
2339 | return 0; | |
2340 | } | |
2341 | ||
99baf625 MN |
2342 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2343 | { | |
8687b63a | 2344 | __be32 *p; |
99baf625 MN |
2345 | |
2346 | *fileid = 0; | |
2347 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2348 | return -EIO; | |
2349 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2350 | READ_BUF(8); | |
2351 | READ64(*fileid); | |
2352 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
2353 | } | |
2354 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); | |
2355 | return 0; | |
2356 | } | |
2357 | ||
1da177e4 LT |
2358 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2359 | { | |
8687b63a | 2360 | __be32 *p; |
1da177e4 LT |
2361 | int status = 0; |
2362 | ||
2363 | *res = 0; | |
2364 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2365 | return -EIO; | |
2366 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2367 | READ_BUF(8); | |
2368 | READ64(*res); | |
2369 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2370 | } | |
2371 | dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2372 | return status; | |
2373 | } | |
2374 | ||
2375 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2376 | { | |
8687b63a | 2377 | __be32 *p; |
1da177e4 LT |
2378 | int status = 0; |
2379 | ||
2380 | *res = 0; | |
2381 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2382 | return -EIO; | |
2383 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2384 | READ_BUF(8); | |
2385 | READ64(*res); | |
2386 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2387 | } | |
2388 | dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2389 | return status; | |
2390 | } | |
2391 | ||
2392 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2393 | { | |
8687b63a | 2394 | __be32 *p; |
1da177e4 LT |
2395 | int status = 0; |
2396 | ||
2397 | *res = 0; | |
2398 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2399 | return -EIO; | |
2400 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2401 | READ_BUF(8); | |
2402 | READ64(*res); | |
2403 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2404 | } | |
2405 | dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2406 | return status; | |
2407 | } | |
2408 | ||
7aaa0b3b MN |
2409 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2410 | { | |
2411 | int n; | |
8687b63a | 2412 | __be32 *p; |
7aaa0b3b MN |
2413 | int status = 0; |
2414 | ||
2415 | READ_BUF(4); | |
2416 | READ32(n); | |
33a43f28 | 2417 | if (n < 0) |
7aaa0b3b | 2418 | goto out_eio; |
33a43f28 AA |
2419 | if (n == 0) |
2420 | goto root_path; | |
7aaa0b3b MN |
2421 | dprintk("path "); |
2422 | path->ncomponents = 0; | |
2423 | while (path->ncomponents < n) { | |
2424 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2425 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2426 | if (unlikely(status != 0)) | |
2427 | goto out_eio; | |
2428 | if (path->ncomponents != n) | |
2429 | dprintk("/"); | |
2430 | dprintk("%s", component->data); | |
2431 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2432 | path->ncomponents++; | |
2433 | else { | |
2434 | dprintk("cannot parse %d components in path\n", n); | |
2435 | goto out_eio; | |
2436 | } | |
2437 | } | |
2438 | out: | |
2439 | dprintk("\n"); | |
2440 | return status; | |
33a43f28 AA |
2441 | root_path: |
2442 | /* a root pathname is sent as a zero component4 */ | |
2443 | path->ncomponents = 1; | |
2444 | path->components[0].len=0; | |
2445 | path->components[0].data=NULL; | |
2446 | dprintk("path /\n"); | |
2447 | goto out; | |
7aaa0b3b MN |
2448 | out_eio: |
2449 | dprintk(" status %d", status); | |
2450 | status = -EIO; | |
2451 | goto out; | |
2452 | } | |
2453 | ||
2454 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2455 | { |
2456 | int n; | |
8687b63a | 2457 | __be32 *p; |
683b57b4 TM |
2458 | int status = -EIO; |
2459 | ||
2460 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2461 | goto out; | |
2462 | status = 0; | |
2463 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2464 | goto out; | |
7aaa0b3b MN |
2465 | dprintk("%s: fsroot ", __FUNCTION__); |
2466 | status = decode_pathname(xdr, &res->fs_path); | |
683b57b4 TM |
2467 | if (unlikely(status != 0)) |
2468 | goto out; | |
2469 | READ_BUF(4); | |
2470 | READ32(n); | |
2471 | if (n <= 0) | |
2472 | goto out_eio; | |
2473 | res->nlocations = 0; | |
2474 | while (res->nlocations < n) { | |
7aaa0b3b MN |
2475 | int m; |
2476 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; | |
683b57b4 | 2477 | |
7aaa0b3b MN |
2478 | READ_BUF(4); |
2479 | READ32(m); | |
2480 | if (m <= 0) | |
683b57b4 | 2481 | goto out_eio; |
7aaa0b3b MN |
2482 | |
2483 | loc->nservers = 0; | |
2484 | dprintk("%s: servers ", __FUNCTION__); | |
2485 | while (loc->nservers < m) { | |
2486 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2487 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2488 | if (unlikely(status != 0)) | |
2489 | goto out_eio; | |
2490 | dprintk("%s ", server->data); | |
2491 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2492 | loc->nservers++; | |
2493 | else { | |
2494 | int i; | |
2495 | dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); | |
2496 | for (i = loc->nservers; i < m; i++) { | |
2e42c3e2 | 2497 | unsigned int len; |
7aaa0b3b MN |
2498 | char *data; |
2499 | status = decode_opaque_inline(xdr, &len, &data); | |
2500 | if (unlikely(status != 0)) | |
2501 | goto out_eio; | |
2502 | } | |
2503 | } | |
2504 | } | |
2505 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2506 | if (unlikely(status != 0)) |
2507 | goto out_eio; | |
7aaa0b3b | 2508 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2509 | res->nlocations++; |
2510 | } | |
2511 | out: | |
2512 | dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); | |
2513 | return status; | |
2514 | out_eio: | |
2515 | status = -EIO; | |
2516 | goto out; | |
2517 | } | |
2518 | ||
1da177e4 LT |
2519 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2520 | { | |
8687b63a | 2521 | __be32 *p; |
1da177e4 LT |
2522 | int status = 0; |
2523 | ||
2524 | *res = 0; | |
2525 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2526 | return -EIO; | |
2527 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2528 | READ_BUF(8); | |
2529 | READ64(*res); | |
2530 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2531 | } | |
2532 | dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2533 | return status; | |
2534 | } | |
2535 | ||
2536 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2537 | { | |
8687b63a | 2538 | __be32 *p; |
1da177e4 LT |
2539 | int status = 0; |
2540 | ||
2541 | *maxlink = 1; | |
2542 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2543 | return -EIO; | |
2544 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2545 | READ_BUF(4); | |
2546 | READ32(*maxlink); | |
2547 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2548 | } | |
2549 | dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); | |
2550 | return status; | |
2551 | } | |
2552 | ||
2553 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2554 | { | |
8687b63a | 2555 | __be32 *p; |
1da177e4 LT |
2556 | int status = 0; |
2557 | ||
2558 | *maxname = 1024; | |
2559 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2560 | return -EIO; | |
2561 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2562 | READ_BUF(4); | |
2563 | READ32(*maxname); | |
2564 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2565 | } | |
2566 | dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); | |
2567 | return status; | |
2568 | } | |
2569 | ||
2570 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2571 | { | |
8687b63a | 2572 | __be32 *p; |
1da177e4 LT |
2573 | int status = 0; |
2574 | ||
2575 | *res = 1024; | |
2576 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2577 | return -EIO; | |
2578 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2579 | uint64_t maxread; | |
2580 | READ_BUF(8); | |
2581 | READ64(maxread); | |
2582 | if (maxread > 0x7FFFFFFF) | |
2583 | maxread = 0x7FFFFFFF; | |
2584 | *res = (uint32_t)maxread; | |
2585 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2586 | } | |
2587 | dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); | |
2588 | return status; | |
2589 | } | |
2590 | ||
2591 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2592 | { | |
8687b63a | 2593 | __be32 *p; |
1da177e4 LT |
2594 | int status = 0; |
2595 | ||
2596 | *res = 1024; | |
2597 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2598 | return -EIO; | |
2599 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2600 | uint64_t maxwrite; | |
2601 | READ_BUF(8); | |
2602 | READ64(maxwrite); | |
2603 | if (maxwrite > 0x7FFFFFFF) | |
2604 | maxwrite = 0x7FFFFFFF; | |
2605 | *res = (uint32_t)maxwrite; | |
2606 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2607 | } | |
2608 | dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); | |
2609 | return status; | |
2610 | } | |
2611 | ||
2612 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) | |
2613 | { | |
8687b63a | 2614 | __be32 *p; |
1da177e4 LT |
2615 | |
2616 | *mode = 0; | |
2617 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2618 | return -EIO; | |
2619 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2620 | READ_BUF(4); | |
2621 | READ32(*mode); | |
2622 | *mode &= ~S_IFMT; | |
2623 | bitmap[1] &= ~FATTR4_WORD1_MODE; | |
2624 | } | |
2625 | dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); | |
2626 | return 0; | |
2627 | } | |
2628 | ||
2629 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2630 | { | |
8687b63a | 2631 | __be32 *p; |
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; | |
2640 | } | |
2641 | dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); | |
2642 | return 0; | |
2643 | } | |
2644 | ||
2e42c3e2 | 2645 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2646 | { |
8687b63a AV |
2647 | uint32_t len; |
2648 | __be32 *p; | |
1da177e4 LT |
2649 | |
2650 | *uid = -2; | |
2651 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2652 | return -EIO; | |
2653 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2654 | READ_BUF(4); | |
2655 | READ32(len); | |
2656 | READ_BUF(len); | |
2657 | if (len < XDR_MAX_NETOBJ) { | |
2658 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) | |
2659 | dprintk("%s: nfs_map_name_to_uid failed!\n", | |
2660 | __FUNCTION__); | |
2661 | } else | |
2662 | printk(KERN_WARNING "%s: name too long (%u)!\n", | |
2663 | __FUNCTION__, len); | |
2664 | bitmap[1] &= ~FATTR4_WORD1_OWNER; | |
2665 | } | |
2666 | dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); | |
2667 | return 0; | |
2668 | } | |
2669 | ||
2e42c3e2 | 2670 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2671 | { |
8687b63a AV |
2672 | uint32_t len; |
2673 | __be32 *p; | |
1da177e4 LT |
2674 | |
2675 | *gid = -2; | |
2676 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2677 | return -EIO; | |
2678 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2679 | READ_BUF(4); | |
2680 | READ32(len); | |
2681 | READ_BUF(len); | |
2682 | if (len < XDR_MAX_NETOBJ) { | |
2683 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) | |
2684 | dprintk("%s: nfs_map_group_to_gid failed!\n", | |
2685 | __FUNCTION__); | |
2686 | } else | |
2687 | printk(KERN_WARNING "%s: name too long (%u)!\n", | |
2688 | __FUNCTION__, len); | |
2689 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; | |
2690 | } | |
2691 | dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); | |
2692 | return 0; | |
2693 | } | |
2694 | ||
2695 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2696 | { | |
8687b63a AV |
2697 | uint32_t major = 0, minor = 0; |
2698 | __be32 *p; | |
1da177e4 LT |
2699 | |
2700 | *rdev = MKDEV(0,0); | |
2701 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2702 | return -EIO; | |
2703 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2704 | dev_t tmp; | |
2705 | ||
2706 | READ_BUF(8); | |
2707 | READ32(major); | |
2708 | READ32(minor); | |
2709 | tmp = MKDEV(major, minor); | |
2710 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2711 | *rdev = tmp; | |
2712 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
2713 | } | |
2714 | dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); | |
2715 | return 0; | |
2716 | } | |
2717 | ||
2718 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2719 | { | |
8687b63a | 2720 | __be32 *p; |
1da177e4 LT |
2721 | int status = 0; |
2722 | ||
2723 | *res = 0; | |
2724 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2725 | return -EIO; | |
2726 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2727 | READ_BUF(8); | |
2728 | READ64(*res); | |
2729 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2730 | } | |
2731 | dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2732 | return status; | |
2733 | } | |
2734 | ||
2735 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2736 | { | |
8687b63a | 2737 | __be32 *p; |
1da177e4 LT |
2738 | int status = 0; |
2739 | ||
2740 | *res = 0; | |
2741 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2742 | return -EIO; | |
2743 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2744 | READ_BUF(8); | |
2745 | READ64(*res); | |
2746 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2747 | } | |
2748 | dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2749 | return status; | |
2750 | } | |
2751 | ||
2752 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2753 | { | |
8687b63a | 2754 | __be32 *p; |
1da177e4 LT |
2755 | int status = 0; |
2756 | ||
2757 | *res = 0; | |
2758 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2759 | return -EIO; | |
2760 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2761 | READ_BUF(8); | |
2762 | READ64(*res); | |
2763 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2764 | } | |
2765 | dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2766 | return status; | |
2767 | } | |
2768 | ||
2769 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2770 | { | |
8687b63a | 2771 | __be32 *p; |
1da177e4 LT |
2772 | |
2773 | *used = 0; | |
2774 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2775 | return -EIO; | |
2776 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2777 | READ_BUF(8); | |
2778 | READ64(*used); | |
2779 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
2780 | } | |
2781 | dprintk("%s: space used=%Lu\n", __FUNCTION__, | |
2782 | (unsigned long long)*used); | |
2783 | return 0; | |
2784 | } | |
2785 | ||
2786 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2787 | { | |
8687b63a | 2788 | __be32 *p; |
1da177e4 LT |
2789 | uint64_t sec; |
2790 | uint32_t nsec; | |
2791 | ||
2792 | READ_BUF(12); | |
2793 | READ64(sec); | |
2794 | READ32(nsec); | |
2795 | time->tv_sec = (time_t)sec; | |
2796 | time->tv_nsec = (long)nsec; | |
2797 | return 0; | |
2798 | } | |
2799 | ||
2800 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2801 | { | |
2802 | int status = 0; | |
2803 | ||
2804 | time->tv_sec = 0; | |
2805 | time->tv_nsec = 0; | |
2806 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
2807 | return -EIO; | |
2808 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2809 | status = decode_attr_time(xdr, time); | |
2810 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; | |
2811 | } | |
2812 | dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); | |
2813 | return status; | |
2814 | } | |
2815 | ||
2816 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2817 | { | |
2818 | int status = 0; | |
2819 | ||
2820 | time->tv_sec = 0; | |
2821 | time->tv_nsec = 0; | |
2822 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
2823 | return -EIO; | |
2824 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
2825 | status = decode_attr_time(xdr, time); | |
2826 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; | |
2827 | } | |
2828 | dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); | |
2829 | return status; | |
2830 | } | |
2831 | ||
2832 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2833 | { | |
2834 | int status = 0; | |
2835 | ||
2836 | time->tv_sec = 0; | |
2837 | time->tv_nsec = 0; | |
2838 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
2839 | return -EIO; | |
2840 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
2841 | status = decode_attr_time(xdr, time); | |
2842 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; | |
2843 | } | |
2844 | dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); | |
2845 | return status; | |
2846 | } | |
2847 | ||
8687b63a | 2848 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
2849 | { |
2850 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
2851 | unsigned int nwords = xdr->p - savep; | |
2852 | ||
2853 | if (unlikely(attrwords != nwords)) { | |
2854 | printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", | |
2855 | __FUNCTION__, | |
2856 | attrwords << 2, | |
2857 | (attrwords < nwords) ? '<' : '>', | |
2858 | nwords << 2); | |
2859 | return -EIO; | |
2860 | } | |
2861 | return 0; | |
2862 | } | |
2863 | ||
2864 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2865 | { | |
8687b63a | 2866 | __be32 *p; |
1da177e4 LT |
2867 | |
2868 | READ_BUF(20); | |
2869 | READ32(cinfo->atomic); | |
2870 | READ64(cinfo->before); | |
2871 | READ64(cinfo->after); | |
2872 | return 0; | |
2873 | } | |
2874 | ||
2875 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
2876 | { | |
8687b63a | 2877 | __be32 *p; |
1da177e4 LT |
2878 | uint32_t supp, acc; |
2879 | int status; | |
2880 | ||
2881 | status = decode_op_hdr(xdr, OP_ACCESS); | |
2882 | if (status) | |
2883 | return status; | |
2884 | READ_BUF(8); | |
2885 | READ32(supp); | |
2886 | READ32(acc); | |
2887 | access->supported = supp; | |
2888 | access->access = acc; | |
2889 | return 0; | |
2890 | } | |
2891 | ||
2892 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
2893 | { | |
8687b63a | 2894 | __be32 *p; |
1da177e4 LT |
2895 | int status; |
2896 | ||
2897 | status = decode_op_hdr(xdr, OP_CLOSE); | |
2898 | if (status) | |
2899 | return status; | |
8ae20abd TM |
2900 | READ_BUF(NFS4_STATEID_SIZE); |
2901 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
2902 | return 0; |
2903 | } | |
2904 | ||
2905 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
2906 | { | |
8687b63a | 2907 | __be32 *p; |
1da177e4 LT |
2908 | int status; |
2909 | ||
2910 | status = decode_op_hdr(xdr, OP_COMMIT); | |
2911 | if (status) | |
2912 | return status; | |
2913 | READ_BUF(8); | |
2914 | COPYMEM(res->verf->verifier, 8); | |
2915 | return 0; | |
2916 | } | |
2917 | ||
2918 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2919 | { | |
8687b63a | 2920 | __be32 *p; |
1da177e4 LT |
2921 | uint32_t bmlen; |
2922 | int status; | |
2923 | ||
2924 | status = decode_op_hdr(xdr, OP_CREATE); | |
2925 | if (status) | |
2926 | return status; | |
2927 | if ((status = decode_change_info(xdr, cinfo))) | |
2928 | return status; | |
2929 | READ_BUF(4); | |
2930 | READ32(bmlen); | |
2931 | READ_BUF(bmlen << 2); | |
2932 | return 0; | |
2933 | } | |
2934 | ||
2935 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
2936 | { | |
8687b63a | 2937 | __be32 *savep; |
1da177e4 LT |
2938 | uint32_t attrlen, |
2939 | bitmap[2] = {0}; | |
2940 | int status; | |
2941 | ||
2942 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
2943 | goto xdr_error; | |
2944 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2945 | goto xdr_error; | |
2946 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2947 | goto xdr_error; | |
2948 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
2949 | goto xdr_error; | |
2950 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
2951 | goto xdr_error; | |
2952 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
2953 | goto xdr_error; | |
2954 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
2955 | goto xdr_error; | |
2956 | status = verify_attr_len(xdr, savep, attrlen); | |
2957 | xdr_error: | |
16c32b71 | 2958 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
2959 | return status; |
2960 | } | |
2961 | ||
2962 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) | |
2963 | { | |
8687b63a | 2964 | __be32 *savep; |
1da177e4 LT |
2965 | uint32_t attrlen, |
2966 | bitmap[2] = {0}; | |
2967 | int status; | |
2968 | ||
2969 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
2970 | goto xdr_error; | |
2971 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2972 | goto xdr_error; | |
2973 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2974 | goto xdr_error; | |
2975 | ||
2976 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
2977 | goto xdr_error; | |
2978 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
2979 | goto xdr_error; | |
2980 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
2981 | goto xdr_error; | |
2982 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
2983 | goto xdr_error; | |
2984 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
2985 | goto xdr_error; | |
2986 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
2987 | goto xdr_error; | |
2988 | ||
2989 | status = verify_attr_len(xdr, savep, attrlen); | |
2990 | xdr_error: | |
16c32b71 | 2991 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
2992 | return status; |
2993 | } | |
2994 | ||
2995 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
2996 | { | |
8687b63a | 2997 | __be32 *savep; |
1da177e4 LT |
2998 | uint32_t attrlen, |
2999 | bitmap[2] = {0}; | |
3000 | int status; | |
3001 | ||
3002 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3003 | goto xdr_error; | |
3004 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3005 | goto xdr_error; | |
3006 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3007 | goto xdr_error; | |
3008 | ||
3009 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3010 | goto xdr_error; | |
3011 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3012 | goto xdr_error; | |
3013 | ||
3014 | status = verify_attr_len(xdr, savep, attrlen); | |
3015 | xdr_error: | |
16c32b71 | 3016 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
3017 | return status; |
3018 | } | |
3019 | ||
3020 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3021 | { | |
8687b63a | 3022 | __be32 *savep; |
1da177e4 LT |
3023 | uint32_t attrlen, |
3024 | bitmap[2] = {0}, | |
3025 | type; | |
3026 | int status, fmode = 0; | |
99baf625 | 3027 | uint64_t fileid; |
1da177e4 LT |
3028 | |
3029 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3030 | goto xdr_error; | |
3031 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3032 | goto xdr_error; | |
3033 | ||
3034 | fattr->bitmap[0] = bitmap[0]; | |
3035 | fattr->bitmap[1] = bitmap[1]; | |
3036 | ||
3037 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3038 | goto xdr_error; | |
3039 | ||
3040 | ||
3041 | if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) | |
3042 | goto xdr_error; | |
3043 | fattr->type = nfs_type2fmt[type].nfs2type; | |
3044 | fmode = nfs_type2fmt[type].mode; | |
3045 | ||
3046 | if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) | |
3047 | goto xdr_error; | |
3048 | if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) | |
3049 | goto xdr_error; | |
8b4bdcf8 | 3050 | if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) |
1da177e4 LT |
3051 | goto xdr_error; |
3052 | if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) | |
3053 | goto xdr_error; | |
683b57b4 | 3054 | if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, |
7aaa0b3b | 3055 | struct nfs4_fs_locations, |
683b57b4 TM |
3056 | fattr))) != 0) |
3057 | goto xdr_error; | |
1da177e4 LT |
3058 | if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) |
3059 | goto xdr_error; | |
3060 | fattr->mode |= fmode; | |
3061 | if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) | |
3062 | goto xdr_error; | |
7539bbab | 3063 | if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) |
1da177e4 | 3064 | goto xdr_error; |
7539bbab | 3065 | if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) |
1da177e4 LT |
3066 | goto xdr_error; |
3067 | if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) | |
3068 | goto xdr_error; | |
3069 | if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) | |
3070 | goto xdr_error; | |
3071 | if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) | |
3072 | goto xdr_error; | |
3073 | if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) | |
3074 | goto xdr_error; | |
3075 | if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) | |
3076 | goto xdr_error; | |
99baf625 MN |
3077 | if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) |
3078 | goto xdr_error; | |
3079 | if (fattr->fileid == 0 && fileid != 0) | |
3080 | fattr->fileid = fileid; | |
33801147 | 3081 | if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) |
1da177e4 | 3082 | fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; |
1da177e4 | 3083 | xdr_error: |
16c32b71 | 3084 | dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); |
1da177e4 LT |
3085 | return status; |
3086 | } | |
3087 | ||
3088 | ||
3089 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3090 | { | |
8687b63a | 3091 | __be32 *savep; |
1da177e4 LT |
3092 | uint32_t attrlen, bitmap[2]; |
3093 | int status; | |
3094 | ||
3095 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3096 | goto xdr_error; | |
3097 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3098 | goto xdr_error; | |
3099 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3100 | goto xdr_error; | |
3101 | ||
3102 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3103 | ||
3104 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3105 | goto xdr_error; | |
3106 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3107 | goto xdr_error; | |
3108 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3109 | goto xdr_error; | |
3110 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3111 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3112 | goto xdr_error; | |
3113 | fsinfo->wtpref = fsinfo->wtmax; | |
3114 | ||
3115 | status = verify_attr_len(xdr, savep, attrlen); | |
3116 | xdr_error: | |
16c32b71 | 3117 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
3118 | return status; |
3119 | } | |
3120 | ||
3121 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3122 | { | |
8687b63a | 3123 | __be32 *p; |
1da177e4 LT |
3124 | uint32_t len; |
3125 | int status; | |
3126 | ||
3127 | status = decode_op_hdr(xdr, OP_GETFH); | |
3128 | if (status) | |
3129 | return status; | |
3130 | /* Zero handle first to allow comparisons */ | |
3131 | memset(fh, 0, sizeof(*fh)); | |
3132 | ||
3133 | READ_BUF(4); | |
3134 | READ32(len); | |
3135 | if (len > NFS4_FHSIZE) | |
3136 | return -EIO; | |
3137 | fh->size = len; | |
3138 | READ_BUF(len); | |
3139 | COPYMEM(fh->data, len); | |
3140 | return 0; | |
3141 | } | |
3142 | ||
3143 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3144 | { | |
3145 | int status; | |
3146 | ||
3147 | status = decode_op_hdr(xdr, OP_LINK); | |
3148 | if (status) | |
3149 | return status; | |
3150 | return decode_change_info(xdr, cinfo); | |
3151 | } | |
3152 | ||
3153 | /* | |
3154 | * We create the owner, so we know a proper owner.id length is 4. | |
3155 | */ | |
911d1aaf | 3156 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3157 | { |
911d1aaf | 3158 | uint64_t offset, length, clientid; |
8687b63a | 3159 | __be32 *p; |
911d1aaf | 3160 | uint32_t namelen, type; |
1da177e4 LT |
3161 | |
3162 | READ_BUF(32); | |
911d1aaf TM |
3163 | READ64(offset); |
3164 | READ64(length); | |
3165 | READ32(type); | |
3166 | if (fl != NULL) { | |
3167 | fl->fl_start = (loff_t)offset; | |
3168 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3169 | if (length == ~(uint64_t)0) | |
3170 | fl->fl_end = OFFSET_MAX; | |
3171 | fl->fl_type = F_WRLCK; | |
3172 | if (type & 1) | |
3173 | fl->fl_type = F_RDLCK; | |
3174 | fl->fl_pid = 0; | |
3175 | } | |
3176 | READ64(clientid); | |
1da177e4 LT |
3177 | READ32(namelen); |
3178 | READ_BUF(namelen); | |
1da177e4 LT |
3179 | return -NFS4ERR_DENIED; |
3180 | } | |
3181 | ||
911d1aaf | 3182 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3183 | { |
8687b63a | 3184 | __be32 *p; |
1da177e4 LT |
3185 | int status; |
3186 | ||
3187 | status = decode_op_hdr(xdr, OP_LOCK); | |
3188 | if (status == 0) { | |
8ae20abd TM |
3189 | READ_BUF(NFS4_STATEID_SIZE); |
3190 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3191 | } else if (status == -NFS4ERR_DENIED) |
911d1aaf | 3192 | return decode_lock_denied(xdr, NULL); |
1da177e4 LT |
3193 | return status; |
3194 | } | |
3195 | ||
911d1aaf | 3196 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3197 | { |
3198 | int status; | |
3199 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3200 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3201 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3202 | return status; |
3203 | } | |
3204 | ||
911d1aaf | 3205 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3206 | { |
8687b63a | 3207 | __be32 *p; |
1da177e4 LT |
3208 | int status; |
3209 | ||
3210 | status = decode_op_hdr(xdr, OP_LOCKU); | |
3211 | if (status == 0) { | |
8ae20abd TM |
3212 | READ_BUF(NFS4_STATEID_SIZE); |
3213 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3214 | } |
3215 | return status; | |
3216 | } | |
3217 | ||
3218 | static int decode_lookup(struct xdr_stream *xdr) | |
3219 | { | |
3220 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3221 | } | |
3222 | ||
3223 | /* This is too sick! */ | |
3224 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3225 | { | |
8687b63a | 3226 | __be32 *p; |
1da177e4 LT |
3227 | uint32_t limit_type, nblocks, blocksize; |
3228 | ||
3229 | READ_BUF(12); | |
3230 | READ32(limit_type); | |
3231 | switch (limit_type) { | |
3232 | case 1: | |
3233 | READ64(*maxsize); | |
3234 | break; | |
3235 | case 2: | |
3236 | READ32(nblocks); | |
3237 | READ32(blocksize); | |
3238 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
3239 | } | |
3240 | return 0; | |
3241 | } | |
3242 | ||
3243 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3244 | { | |
8687b63a | 3245 | __be32 *p; |
1da177e4 LT |
3246 | uint32_t delegation_type; |
3247 | ||
3248 | READ_BUF(4); | |
3249 | READ32(delegation_type); | |
3250 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3251 | res->delegation_type = 0; | |
3252 | return 0; | |
3253 | } | |
8ae20abd TM |
3254 | READ_BUF(NFS4_STATEID_SIZE+4); |
3255 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3256 | READ32(res->do_recall); |
3257 | switch (delegation_type) { | |
3258 | case NFS4_OPEN_DELEGATE_READ: | |
3259 | res->delegation_type = FMODE_READ; | |
3260 | break; | |
3261 | case NFS4_OPEN_DELEGATE_WRITE: | |
3262 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3263 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
3264 | return -EIO; | |
3265 | } | |
7539bbab | 3266 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3267 | } |
3268 | ||
3269 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3270 | { | |
8687b63a | 3271 | __be32 *p; |
aa53ed54 | 3272 | uint32_t savewords, bmlen, i; |
1da177e4 LT |
3273 | int status; |
3274 | ||
3275 | status = decode_op_hdr(xdr, OP_OPEN); | |
3276 | if (status) | |
3277 | return status; | |
8ae20abd TM |
3278 | READ_BUF(NFS4_STATEID_SIZE); |
3279 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3280 | |
3281 | decode_change_info(xdr, &res->cinfo); | |
3282 | ||
3283 | READ_BUF(8); | |
3284 | READ32(res->rflags); | |
3285 | READ32(bmlen); | |
3286 | if (bmlen > 10) | |
3287 | goto xdr_error; | |
3288 | ||
3289 | READ_BUF(bmlen << 2); | |
aa53ed54 JL |
3290 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3291 | for (i = 0; i < savewords; ++i) | |
3292 | READ32(res->attrset[i]); | |
3293 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3294 | res->attrset[i] = 0; | |
3295 | ||
1da177e4 LT |
3296 | return decode_delegation(xdr, res); |
3297 | xdr_error: | |
16c32b71 | 3298 | dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); |
1da177e4 LT |
3299 | return -EIO; |
3300 | } | |
3301 | ||
3302 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3303 | { | |
8687b63a | 3304 | __be32 *p; |
1da177e4 LT |
3305 | int status; |
3306 | ||
3307 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); | |
3308 | if (status) | |
3309 | return status; | |
8ae20abd TM |
3310 | READ_BUF(NFS4_STATEID_SIZE); |
3311 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3312 | return 0; |
3313 | } | |
3314 | ||
3315 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3316 | { | |
8687b63a | 3317 | __be32 *p; |
1da177e4 LT |
3318 | int status; |
3319 | ||
3320 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
3321 | if (status) | |
3322 | return status; | |
8ae20abd TM |
3323 | READ_BUF(NFS4_STATEID_SIZE); |
3324 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3325 | return 0; |
3326 | } | |
3327 | ||
3328 | static int decode_putfh(struct xdr_stream *xdr) | |
3329 | { | |
3330 | return decode_op_hdr(xdr, OP_PUTFH); | |
3331 | } | |
3332 | ||
3333 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3334 | { | |
3335 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3336 | } | |
3337 | ||
3338 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3339 | { | |
3340 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3341 | __be32 *p; |
1da177e4 LT |
3342 | uint32_t count, eof, recvd, hdrlen; |
3343 | int status; | |
3344 | ||
3345 | status = decode_op_hdr(xdr, OP_READ); | |
3346 | if (status) | |
3347 | return status; | |
3348 | READ_BUF(8); | |
3349 | READ32(eof); | |
3350 | READ32(count); | |
3351 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3352 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3353 | if (count > recvd) { | |
3354 | printk(KERN_WARNING "NFS: server cheating in read reply: " | |
3355 | "count %u > recvd %u\n", count, recvd); | |
3356 | count = recvd; | |
3357 | eof = 0; | |
3358 | } | |
3359 | xdr_read_pages(xdr, count); | |
3360 | res->eof = eof; | |
3361 | res->count = count; | |
3362 | return 0; | |
3363 | } | |
3364 | ||
3365 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3366 | { | |
3367 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3368 | struct page *page = *rcvbuf->pages; | |
3369 | struct kvec *iov = rcvbuf->head; | |
3370 | unsigned int nr, pglen = rcvbuf->page_len; | |
8687b63a | 3371 | __be32 *end, *entry, *p, *kaddr; |
e8896495 | 3372 | uint32_t len, attrlen, xlen; |
1da177e4 LT |
3373 | int hdrlen, recvd, status; |
3374 | ||
3375 | status = decode_op_hdr(xdr, OP_READDIR); | |
3376 | if (status) | |
3377 | return status; | |
3378 | READ_BUF(8); | |
3379 | COPYMEM(readdir->verifier.data, 8); | |
eadf4598 TM |
3380 | dprintk("%s: verifier = 0x%x%x\n", |
3381 | __FUNCTION__, | |
3382 | ((u32 *)readdir->verifier.data)[0], | |
3383 | ((u32 *)readdir->verifier.data)[1]); | |
3384 | ||
1da177e4 LT |
3385 | |
3386 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3387 | recvd = rcvbuf->len - hdrlen; | |
3388 | if (pglen > recvd) | |
3389 | pglen = recvd; | |
3390 | xdr_read_pages(xdr, pglen); | |
3391 | ||
3392 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3393 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3394 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 LT |
3395 | entry = p; |
3396 | for (nr = 0; *p++; nr++) { | |
e8896495 | 3397 | if (end - p < 3) |
1da177e4 | 3398 | goto short_pkt; |
eadf4598 | 3399 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3400 | p += 2; /* cookie */ |
3401 | len = ntohl(*p++); /* filename length */ | |
3402 | if (len > NFS4_MAXNAMLEN) { | |
3403 | printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); | |
3404 | goto err_unmap; | |
3405 | } | |
e8896495 DH |
3406 | xlen = XDR_QUADLEN(len); |
3407 | if (end - p < xlen + 1) | |
1da177e4 | 3408 | goto short_pkt; |
e8896495 DH |
3409 | dprintk("filename = %*s\n", len, (char *)p); |
3410 | p += xlen; | |
1da177e4 | 3411 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3412 | if (end - p < len + 1) |
1da177e4 | 3413 | goto short_pkt; |
e8896495 | 3414 | p += len; |
1da177e4 | 3415 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3416 | if (end - p < attrlen + 2) |
1da177e4 | 3417 | goto short_pkt; |
e8896495 | 3418 | p += attrlen; /* attributes */ |
1da177e4 LT |
3419 | entry = p; |
3420 | } | |
3421 | if (!nr && (entry[0] != 0 || entry[1] == 0)) | |
3422 | goto short_pkt; | |
3423 | out: | |
3424 | kunmap_atomic(kaddr, KM_USER0); | |
3425 | return 0; | |
3426 | short_pkt: | |
eadf4598 | 3427 | dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); |
1da177e4 LT |
3428 | entry[0] = entry[1] = 0; |
3429 | /* truncate listing ? */ | |
3430 | if (!nr) { | |
3431 | printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); | |
3432 | entry[1] = 1; | |
3433 | } | |
3434 | goto out; | |
3435 | err_unmap: | |
3436 | kunmap_atomic(kaddr, KM_USER0); | |
3437 | return -errno_NFSERR_IO; | |
3438 | } | |
3439 | ||
3440 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3441 | { | |
3442 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3443 | struct kvec *iov = rcvbuf->head; | |
3444 | int hdrlen, len, recvd; | |
8687b63a | 3445 | __be32 *p; |
1da177e4 LT |
3446 | char *kaddr; |
3447 | int status; | |
3448 | ||
3449 | status = decode_op_hdr(xdr, OP_READLINK); | |
3450 | if (status) | |
3451 | return status; | |
3452 | ||
3453 | /* Convert length of symlink */ | |
3454 | READ_BUF(4); | |
3455 | READ32(len); | |
3456 | if (len >= rcvbuf->page_len || len <= 0) { | |
3457 | dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); | |
3458 | return -ENAMETOOLONG; | |
3459 | } | |
3460 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3461 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3462 | if (recvd < len) { | |
3463 | printk(KERN_WARNING "NFS: server cheating in readlink reply: " | |
3464 | "count %u > recvd %u\n", len, recvd); | |
3465 | return -EIO; | |
3466 | } | |
3467 | xdr_read_pages(xdr, len); | |
3468 | /* | |
3469 | * The XDR encode routine has set things up so that | |
3470 | * the link text will be copied directly into the | |
3471 | * buffer. We just have to do overflow-checking, | |
3472 | * and and null-terminate the text (the VFS expects | |
3473 | * null-termination). | |
3474 | */ | |
3475 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3476 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3477 | kunmap_atomic(kaddr, KM_USER0); | |
3478 | return 0; | |
3479 | } | |
3480 | ||
3481 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3482 | { | |
3483 | int status; | |
3484 | ||
3485 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3486 | if (status) | |
3487 | goto out; | |
3488 | status = decode_change_info(xdr, cinfo); | |
3489 | out: | |
3490 | return status; | |
3491 | } | |
3492 | ||
3493 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3494 | struct nfs4_change_info *new_cinfo) | |
3495 | { | |
3496 | int status; | |
3497 | ||
3498 | status = decode_op_hdr(xdr, OP_RENAME); | |
3499 | if (status) | |
3500 | goto out; | |
3501 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3502 | goto out; | |
3503 | status = decode_change_info(xdr, new_cinfo); | |
3504 | out: | |
3505 | return status; | |
3506 | } | |
3507 | ||
3508 | static int decode_renew(struct xdr_stream *xdr) | |
3509 | { | |
3510 | return decode_op_hdr(xdr, OP_RENEW); | |
3511 | } | |
3512 | ||
56ae19f3 TM |
3513 | static int |
3514 | decode_restorefh(struct xdr_stream *xdr) | |
3515 | { | |
3516 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3517 | } | |
3518 | ||
029d105e BF |
3519 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3520 | size_t *acl_len) | |
3521 | { | |
8687b63a | 3522 | __be32 *savep; |
029d105e BF |
3523 | uint32_t attrlen, |
3524 | bitmap[2] = {0}; | |
3525 | struct kvec *iov = req->rq_rcv_buf.head; | |
3526 | int status; | |
3527 | ||
3528 | *acl_len = 0; | |
3529 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3530 | goto out; | |
3531 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3532 | goto out; | |
3533 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3534 | goto out; | |
3535 | ||
3536 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3537 | return -EIO; | |
3538 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
3539 | int hdrlen, recvd; | |
3540 | ||
3541 | /* We ignore &savep and don't do consistency checks on | |
3542 | * the attr length. Let userspace figure it out.... */ | |
3543 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3544 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3545 | if (attrlen > recvd) { | |
3546 | printk(KERN_WARNING "NFS: server cheating in getattr" | |
3547 | " acl reply: attrlen %u > recvd %u\n", | |
3548 | attrlen, recvd); | |
3549 | return -EINVAL; | |
3550 | } | |
c04871e6 | 3551 | xdr_read_pages(xdr, attrlen); |
029d105e | 3552 | *acl_len = attrlen; |
8c233cf9 BF |
3553 | } else |
3554 | status = -EOPNOTSUPP; | |
029d105e BF |
3555 | |
3556 | out: | |
3557 | return status; | |
3558 | } | |
3559 | ||
1da177e4 LT |
3560 | static int |
3561 | decode_savefh(struct xdr_stream *xdr) | |
3562 | { | |
3563 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3564 | } | |
3565 | ||
3566 | static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) | |
3567 | { | |
8687b63a | 3568 | __be32 *p; |
1da177e4 LT |
3569 | uint32_t bmlen; |
3570 | int status; | |
3571 | ||
3572 | ||
3573 | status = decode_op_hdr(xdr, OP_SETATTR); | |
3574 | if (status) | |
3575 | return status; | |
3576 | READ_BUF(4); | |
3577 | READ32(bmlen); | |
3578 | READ_BUF(bmlen << 2); | |
3579 | return 0; | |
3580 | } | |
3581 | ||
adfa6f98 | 3582 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3583 | { |
8687b63a | 3584 | __be32 *p; |
1da177e4 LT |
3585 | uint32_t opnum; |
3586 | int32_t nfserr; | |
3587 | ||
3588 | READ_BUF(8); | |
3589 | READ32(opnum); | |
3590 | if (opnum != OP_SETCLIENTID) { | |
3591 | printk(KERN_NOTICE | |
3592 | "nfs4_decode_setclientid: Server returned operation" | |
3593 | " %d\n", opnum); | |
3594 | return -EIO; | |
3595 | } | |
3596 | READ32(nfserr); | |
3597 | if (nfserr == NFS_OK) { | |
8ae20abd | 3598 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3599 | READ64(clp->cl_clientid); |
8ae20abd | 3600 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3601 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3602 | uint32_t len; | |
3603 | ||
3604 | /* skip netid string */ | |
3605 | READ_BUF(4); | |
3606 | READ32(len); | |
3607 | READ_BUF(len); | |
3608 | ||
3609 | /* skip uaddr string */ | |
3610 | READ_BUF(4); | |
3611 | READ32(len); | |
3612 | READ_BUF(len); | |
3613 | return -NFSERR_CLID_INUSE; | |
3614 | } else | |
0a8ea437 | 3615 | return -nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3616 | |
3617 | return 0; | |
3618 | } | |
3619 | ||
3620 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3621 | { | |
3622 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3623 | } | |
3624 | ||
3625 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3626 | { | |
8687b63a | 3627 | __be32 *p; |
1da177e4 LT |
3628 | int status; |
3629 | ||
3630 | status = decode_op_hdr(xdr, OP_WRITE); | |
3631 | if (status) | |
3632 | return status; | |
3633 | ||
3634 | READ_BUF(16); | |
3635 | READ32(res->count); | |
3636 | READ32(res->verf->committed); | |
3637 | COPYMEM(res->verf->verifier, 8); | |
3638 | return 0; | |
3639 | } | |
3640 | ||
3641 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3642 | { | |
3643 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3644 | } | |
3645 | ||
3646 | /* | |
3647 | * Decode OPEN_DOWNGRADE response | |
3648 | */ | |
8687b63a | 3649 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 LT |
3650 | { |
3651 | struct xdr_stream xdr; | |
3652 | struct compound_hdr hdr; | |
3653 | int status; | |
3654 | ||
3655 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3656 | status = decode_compound_hdr(&xdr, &hdr); | |
3657 | if (status) | |
3658 | goto out; | |
3659 | status = decode_putfh(&xdr); | |
3660 | if (status) | |
3661 | goto out; | |
3662 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3663 | if (status != 0) |
3664 | goto out; | |
3665 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3666 | out: |
3667 | return status; | |
3668 | } | |
3669 | ||
3670 | /* | |
3671 | * END OF "GENERIC" DECODE ROUTINES. | |
3672 | */ | |
3673 | ||
3674 | /* | |
3675 | * Decode ACCESS response | |
3676 | */ | |
8687b63a | 3677 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3678 | { |
3679 | struct xdr_stream xdr; | |
3680 | struct compound_hdr hdr; | |
3681 | int status; | |
3682 | ||
3683 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3684 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3685 | goto out; | |
3686 | if ((status = decode_putfh(&xdr)) == 0) | |
3687 | status = decode_access(&xdr, res); | |
3688 | out: | |
3689 | return status; | |
3690 | } | |
3691 | ||
3692 | /* | |
3693 | * Decode LOOKUP response | |
3694 | */ | |
8687b63a | 3695 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3696 | { |
3697 | struct xdr_stream xdr; | |
3698 | struct compound_hdr hdr; | |
3699 | int status; | |
3700 | ||
3701 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3702 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3703 | goto out; | |
3704 | if ((status = decode_putfh(&xdr)) != 0) | |
3705 | goto out; | |
3706 | if ((status = decode_lookup(&xdr)) != 0) | |
3707 | goto out; | |
3708 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3709 | goto out; | |
3710 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3711 | out: | |
3712 | return status; | |
3713 | } | |
3714 | ||
3715 | /* | |
3716 | * Decode LOOKUP_ROOT response | |
3717 | */ | |
8687b63a | 3718 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3719 | { |
3720 | struct xdr_stream xdr; | |
3721 | struct compound_hdr hdr; | |
3722 | int status; | |
3723 | ||
3724 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3725 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3726 | goto out; | |
3727 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3728 | goto out; | |
3729 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3730 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3731 | out: | |
3732 | return status; | |
3733 | } | |
3734 | ||
3735 | /* | |
3736 | * Decode REMOVE response | |
3737 | */ | |
8687b63a | 3738 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_remove_res *res) |
1da177e4 LT |
3739 | { |
3740 | struct xdr_stream xdr; | |
3741 | struct compound_hdr hdr; | |
3742 | int status; | |
3743 | ||
3744 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3745 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3746 | goto out; | |
16e42959 TM |
3747 | if ((status = decode_putfh(&xdr)) != 0) |
3748 | goto out; | |
3749 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3750 | goto out; | |
3751 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 LT |
3752 | out: |
3753 | return status; | |
3754 | } | |
3755 | ||
3756 | /* | |
3757 | * Decode RENAME response | |
3758 | */ | |
8687b63a | 3759 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3760 | { |
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 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3767 | goto out; | |
3768 | if ((status = decode_putfh(&xdr)) != 0) | |
3769 | goto out; | |
3770 | if ((status = decode_savefh(&xdr)) != 0) | |
3771 | goto out; | |
3772 | if ((status = decode_putfh(&xdr)) != 0) | |
3773 | goto out; | |
6caf2c82 TM |
3774 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
3775 | goto out; | |
3776 | /* Current FH is target directory */ | |
3777 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
3778 | goto out; | |
3779 | if ((status = decode_restorefh(&xdr)) != 0) | |
3780 | goto out; | |
3781 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
3782 | out: |
3783 | return status; | |
3784 | } | |
3785 | ||
3786 | /* | |
3787 | * Decode LINK response | |
3788 | */ | |
8687b63a | 3789 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
3790 | { |
3791 | struct xdr_stream xdr; | |
3792 | struct compound_hdr hdr; | |
3793 | int status; | |
3794 | ||
3795 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3796 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3797 | goto out; | |
3798 | if ((status = decode_putfh(&xdr)) != 0) | |
3799 | goto out; | |
3800 | if ((status = decode_savefh(&xdr)) != 0) | |
3801 | goto out; | |
3802 | if ((status = decode_putfh(&xdr)) != 0) | |
3803 | goto out; | |
91ba2eee TM |
3804 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
3805 | goto out; | |
3806 | /* | |
3807 | * Note order: OP_LINK leaves the directory as the current | |
3808 | * filehandle. | |
3809 | */ | |
3810 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
3811 | goto out; | |
3812 | if ((status = decode_restorefh(&xdr)) != 0) | |
3813 | goto out; | |
3814 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3815 | out: |
3816 | return status; | |
3817 | } | |
3818 | ||
3819 | /* | |
3820 | * Decode CREATE response | |
3821 | */ | |
8687b63a | 3822 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3823 | { |
3824 | struct xdr_stream xdr; | |
3825 | struct compound_hdr hdr; | |
3826 | int status; | |
3827 | ||
3828 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3829 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3830 | goto out; | |
3831 | if ((status = decode_putfh(&xdr)) != 0) | |
3832 | goto out; | |
56ae19f3 TM |
3833 | if ((status = decode_savefh(&xdr)) != 0) |
3834 | goto out; | |
1da177e4 LT |
3835 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
3836 | goto out; | |
3837 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3838 | goto out; | |
56ae19f3 TM |
3839 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
3840 | goto out; | |
3841 | if ((status = decode_restorefh(&xdr)) != 0) | |
3842 | goto out; | |
3843 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
3844 | out: |
3845 | return status; | |
3846 | } | |
3847 | ||
3848 | /* | |
3849 | * Decode SYMLINK response | |
3850 | */ | |
8687b63a | 3851 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3852 | { |
3853 | return nfs4_xdr_dec_create(rqstp, p, res); | |
3854 | } | |
3855 | ||
3856 | /* | |
3857 | * Decode GETATTR response | |
3858 | */ | |
8687b63a | 3859 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
3860 | { |
3861 | struct xdr_stream xdr; | |
3862 | struct compound_hdr hdr; | |
3863 | int status; | |
3864 | ||
3865 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3866 | status = decode_compound_hdr(&xdr, &hdr); | |
3867 | if (status) | |
3868 | goto out; | |
3869 | status = decode_putfh(&xdr); | |
3870 | if (status) | |
3871 | goto out; | |
3872 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3873 | out: | |
3874 | return status; | |
3875 | ||
3876 | } | |
3877 | ||
23ec6965 BF |
3878 | /* |
3879 | * Encode an SETACL request | |
3880 | */ | |
3881 | static int | |
8687b63a | 3882 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 BF |
3883 | { |
3884 | struct xdr_stream xdr; | |
3885 | struct compound_hdr hdr = { | |
3886 | .nops = 2, | |
3887 | }; | |
3888 | int status; | |
3889 | ||
3890 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
3891 | encode_compound_hdr(&xdr, &hdr); | |
3892 | status = encode_putfh(&xdr, args->fh); | |
3893 | if (status) | |
3894 | goto out; | |
3895 | status = encode_setacl(&xdr, args); | |
3896 | out: | |
3897 | return status; | |
3898 | } | |
3899 | /* | |
3900 | * Decode SETACL response | |
3901 | */ | |
3902 | static int | |
8687b63a | 3903 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) |
23ec6965 BF |
3904 | { |
3905 | struct xdr_stream xdr; | |
3906 | struct compound_hdr hdr; | |
3907 | int status; | |
3908 | ||
3909 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3910 | status = decode_compound_hdr(&xdr, &hdr); | |
3911 | if (status) | |
3912 | goto out; | |
3913 | status = decode_putfh(&xdr); | |
3914 | if (status) | |
3915 | goto out; | |
3916 | status = decode_setattr(&xdr, res); | |
3917 | out: | |
3918 | return status; | |
3919 | } | |
1da177e4 | 3920 | |
029d105e BF |
3921 | /* |
3922 | * Decode GETACL response | |
3923 | */ | |
3924 | static int | |
8687b63a | 3925 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) |
029d105e BF |
3926 | { |
3927 | struct xdr_stream xdr; | |
3928 | struct compound_hdr hdr; | |
3929 | int status; | |
3930 | ||
3931 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3932 | status = decode_compound_hdr(&xdr, &hdr); | |
3933 | if (status) | |
3934 | goto out; | |
3935 | status = decode_putfh(&xdr); | |
3936 | if (status) | |
3937 | goto out; | |
3938 | status = decode_getacl(&xdr, rqstp, acl_len); | |
3939 | ||
3940 | out: | |
3941 | return status; | |
3942 | } | |
3943 | ||
1da177e4 LT |
3944 | /* |
3945 | * Decode CLOSE response | |
3946 | */ | |
8687b63a | 3947 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 LT |
3948 | { |
3949 | struct xdr_stream xdr; | |
3950 | struct compound_hdr hdr; | |
3951 | int status; | |
3952 | ||
3953 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3954 | status = decode_compound_hdr(&xdr, &hdr); | |
3955 | if (status) | |
3956 | goto out; | |
3957 | status = decode_putfh(&xdr); | |
3958 | if (status) | |
3959 | goto out; | |
3960 | status = decode_close(&xdr, res); | |
516a6af6 TM |
3961 | if (status != 0) |
3962 | goto out; | |
3963 | /* | |
3964 | * Note: Server may do delete on close for this file | |
3965 | * in which case the getattr call will fail with | |
3966 | * an ESTALE error. Shouldn't be a problem, | |
3967 | * though, since fattr->valid will remain unset. | |
3968 | */ | |
3969 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3970 | out: |
3971 | return status; | |
3972 | } | |
3973 | ||
3974 | /* | |
3975 | * Decode OPEN response | |
3976 | */ | |
8687b63a | 3977 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 LT |
3978 | { |
3979 | struct xdr_stream xdr; | |
3980 | struct compound_hdr hdr; | |
3981 | int status; | |
3982 | ||
3983 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3984 | status = decode_compound_hdr(&xdr, &hdr); | |
3985 | if (status) | |
3986 | goto out; | |
3987 | status = decode_putfh(&xdr); | |
3988 | if (status) | |
3989 | goto out; | |
56ae19f3 TM |
3990 | status = decode_savefh(&xdr); |
3991 | if (status) | |
3992 | goto out; | |
1da177e4 LT |
3993 | status = decode_open(&xdr, res); |
3994 | if (status) | |
3995 | goto out; | |
3996 | status = decode_getfh(&xdr, &res->fh); | |
3997 | if (status) | |
3998 | goto out; | |
56ae19f3 TM |
3999 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4000 | goto out; | |
4001 | if ((status = decode_restorefh(&xdr)) != 0) | |
4002 | goto out; | |
4003 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 LT |
4004 | out: |
4005 | return status; | |
4006 | } | |
4007 | ||
4008 | /* | |
4009 | * Decode OPEN_CONFIRM response | |
4010 | */ | |
8687b63a | 4011 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 LT |
4012 | { |
4013 | struct xdr_stream xdr; | |
4014 | struct compound_hdr hdr; | |
4015 | int status; | |
4016 | ||
4017 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4018 | status = decode_compound_hdr(&xdr, &hdr); | |
4019 | if (status) | |
4020 | goto out; | |
4021 | status = decode_putfh(&xdr); | |
4022 | if (status) | |
4023 | goto out; | |
4024 | status = decode_open_confirm(&xdr, res); | |
4025 | out: | |
4026 | return status; | |
4027 | } | |
4028 | ||
4029 | /* | |
4030 | * Decode OPEN response | |
4031 | */ | |
8687b63a | 4032 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 LT |
4033 | { |
4034 | struct xdr_stream xdr; | |
4035 | struct compound_hdr hdr; | |
4036 | int status; | |
4037 | ||
4038 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4039 | status = decode_compound_hdr(&xdr, &hdr); | |
4040 | if (status) | |
4041 | goto out; | |
4042 | status = decode_putfh(&xdr); | |
4043 | if (status) | |
4044 | goto out; | |
4045 | status = decode_open(&xdr, res); | |
864472e9 TM |
4046 | if (status) |
4047 | goto out; | |
4048 | decode_getfattr(&xdr, res->f_attr, res->server); | |
1da177e4 LT |
4049 | out: |
4050 | return status; | |
4051 | } | |
4052 | ||
4053 | /* | |
4054 | * Decode SETATTR response | |
4055 | */ | |
8687b63a | 4056 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 LT |
4057 | { |
4058 | struct xdr_stream xdr; | |
4059 | struct compound_hdr hdr; | |
4060 | int status; | |
4061 | ||
4062 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4063 | status = decode_compound_hdr(&xdr, &hdr); | |
4064 | if (status) | |
4065 | goto out; | |
4066 | status = decode_putfh(&xdr); | |
4067 | if (status) | |
4068 | goto out; | |
4069 | status = decode_setattr(&xdr, res); | |
4070 | if (status) | |
4071 | goto out; | |
4072 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4073 | if (status == NFS4ERR_DELAY) | |
4074 | status = 0; | |
4075 | out: | |
4076 | return status; | |
4077 | } | |
4078 | ||
4079 | /* | |
4080 | * Decode LOCK response | |
4081 | */ | |
8687b63a | 4082 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4083 | { |
4084 | struct xdr_stream xdr; | |
4085 | struct compound_hdr hdr; | |
4086 | int status; | |
4087 | ||
4088 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4089 | status = decode_compound_hdr(&xdr, &hdr); | |
4090 | if (status) | |
4091 | goto out; | |
4092 | status = decode_putfh(&xdr); | |
4093 | if (status) | |
4094 | goto out; | |
4095 | status = decode_lock(&xdr, res); | |
4096 | out: | |
4097 | return status; | |
4098 | } | |
4099 | ||
4100 | /* | |
4101 | * Decode LOCKT response | |
4102 | */ | |
8687b63a | 4103 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4104 | { |
4105 | struct xdr_stream xdr; | |
4106 | struct compound_hdr hdr; | |
4107 | int status; | |
4108 | ||
4109 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4110 | status = decode_compound_hdr(&xdr, &hdr); | |
4111 | if (status) | |
4112 | goto out; | |
4113 | status = decode_putfh(&xdr); | |
4114 | if (status) | |
4115 | goto out; | |
4116 | status = decode_lockt(&xdr, res); | |
4117 | out: | |
4118 | return status; | |
4119 | } | |
4120 | ||
4121 | /* | |
4122 | * Decode LOCKU response | |
4123 | */ | |
8687b63a | 4124 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4125 | { |
4126 | struct xdr_stream xdr; | |
4127 | struct compound_hdr hdr; | |
4128 | int status; | |
4129 | ||
4130 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4131 | status = decode_compound_hdr(&xdr, &hdr); | |
4132 | if (status) | |
4133 | goto out; | |
4134 | status = decode_putfh(&xdr); | |
4135 | if (status) | |
4136 | goto out; | |
4137 | status = decode_locku(&xdr, res); | |
4138 | out: | |
4139 | return status; | |
4140 | } | |
4141 | ||
4142 | /* | |
4143 | * Decode READLINK response | |
4144 | */ | |
8687b63a | 4145 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) |
1da177e4 LT |
4146 | { |
4147 | struct xdr_stream xdr; | |
4148 | struct compound_hdr hdr; | |
4149 | int status; | |
4150 | ||
4151 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4152 | status = decode_compound_hdr(&xdr, &hdr); | |
4153 | if (status) | |
4154 | goto out; | |
4155 | status = decode_putfh(&xdr); | |
4156 | if (status) | |
4157 | goto out; | |
4158 | status = decode_readlink(&xdr, rqstp); | |
4159 | out: | |
4160 | return status; | |
4161 | } | |
4162 | ||
4163 | /* | |
4164 | * Decode READDIR response | |
4165 | */ | |
8687b63a | 4166 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4167 | { |
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; | |
4179 | status = decode_readdir(&xdr, rqstp, res); | |
4180 | out: | |
4181 | return status; | |
4182 | } | |
4183 | ||
4184 | /* | |
4185 | * Decode Read response | |
4186 | */ | |
8687b63a | 4187 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4188 | { |
4189 | struct xdr_stream xdr; | |
4190 | struct compound_hdr hdr; | |
4191 | int status; | |
4192 | ||
4193 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4194 | status = decode_compound_hdr(&xdr, &hdr); | |
4195 | if (status) | |
4196 | goto out; | |
4197 | status = decode_putfh(&xdr); | |
4198 | if (status) | |
4199 | goto out; | |
4200 | status = decode_read(&xdr, rqstp, res); | |
4201 | if (!status) | |
4202 | status = res->count; | |
4203 | out: | |
4204 | return status; | |
4205 | } | |
4206 | ||
4207 | /* | |
4208 | * Decode WRITE response | |
4209 | */ | |
8687b63a | 4210 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4211 | { |
4212 | struct xdr_stream xdr; | |
4213 | struct compound_hdr hdr; | |
4214 | int status; | |
4215 | ||
4216 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4217 | status = decode_compound_hdr(&xdr, &hdr); | |
4218 | if (status) | |
4219 | goto out; | |
4220 | status = decode_putfh(&xdr); | |
4221 | if (status) | |
4222 | goto out; | |
4223 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4224 | if (status) |
4225 | goto out; | |
4226 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4227 | if (!status) |
4228 | status = res->count; | |
4229 | out: | |
4230 | return status; | |
4231 | } | |
4232 | ||
4233 | /* | |
4234 | * Decode COMMIT response | |
4235 | */ | |
8687b63a | 4236 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4237 | { |
4238 | struct xdr_stream xdr; | |
4239 | struct compound_hdr hdr; | |
4240 | int status; | |
4241 | ||
4242 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4243 | status = decode_compound_hdr(&xdr, &hdr); | |
4244 | if (status) | |
4245 | goto out; | |
4246 | status = decode_putfh(&xdr); | |
4247 | if (status) | |
4248 | goto out; | |
4249 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4250 | if (status) |
4251 | goto out; | |
4252 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4253 | out: |
4254 | return status; | |
4255 | } | |
4256 | ||
4257 | /* | |
4258 | * FSINFO request | |
4259 | */ | |
8687b63a | 4260 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4261 | { |
4262 | struct xdr_stream xdr; | |
4263 | struct compound_hdr hdr; | |
4264 | int status; | |
4265 | ||
4266 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4267 | status = decode_compound_hdr(&xdr, &hdr); | |
4268 | if (!status) | |
4269 | status = decode_putfh(&xdr); | |
4270 | if (!status) | |
4271 | status = decode_fsinfo(&xdr, fsinfo); | |
4272 | if (!status) | |
0a8ea437 | 4273 | status = -nfs4_stat_to_errno(hdr.status); |
1da177e4 LT |
4274 | return status; |
4275 | } | |
4276 | ||
4277 | /* | |
4278 | * PATHCONF request | |
4279 | */ | |
8687b63a | 4280 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) |
1da177e4 LT |
4281 | { |
4282 | struct xdr_stream xdr; | |
4283 | struct compound_hdr hdr; | |
4284 | int status; | |
4285 | ||
4286 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4287 | status = decode_compound_hdr(&xdr, &hdr); | |
4288 | if (!status) | |
4289 | status = decode_putfh(&xdr); | |
4290 | if (!status) | |
4291 | status = decode_pathconf(&xdr, pathconf); | |
4292 | return status; | |
4293 | } | |
4294 | ||
4295 | /* | |
4296 | * STATFS request | |
4297 | */ | |
8687b63a | 4298 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) |
1da177e4 LT |
4299 | { |
4300 | struct xdr_stream xdr; | |
4301 | struct compound_hdr hdr; | |
4302 | int status; | |
4303 | ||
4304 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4305 | status = decode_compound_hdr(&xdr, &hdr); | |
4306 | if (!status) | |
4307 | status = decode_putfh(&xdr); | |
4308 | if (!status) | |
4309 | status = decode_statfs(&xdr, fsstat); | |
4310 | return status; | |
4311 | } | |
4312 | ||
4313 | /* | |
4314 | * GETATTR_BITMAP request | |
4315 | */ | |
8687b63a | 4316 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4317 | { |
4318 | struct xdr_stream xdr; | |
4319 | struct compound_hdr hdr; | |
4320 | int status; | |
4321 | ||
4322 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4323 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4324 | goto out; | |
4325 | if ((status = decode_putfh(&xdr)) != 0) | |
4326 | goto out; | |
4327 | status = decode_server_caps(&xdr, res); | |
4328 | out: | |
4329 | return status; | |
4330 | } | |
4331 | ||
4332 | /* | |
4333 | * Decode RENEW response | |
4334 | */ | |
8687b63a | 4335 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4336 | { |
4337 | struct xdr_stream xdr; | |
4338 | struct compound_hdr hdr; | |
4339 | int status; | |
4340 | ||
4341 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4342 | status = decode_compound_hdr(&xdr, &hdr); | |
4343 | if (!status) | |
4344 | status = decode_renew(&xdr); | |
4345 | return status; | |
4346 | } | |
4347 | ||
4348 | /* | |
4349 | * a SETCLIENTID request | |
4350 | */ | |
8687b63a | 4351 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4352 | struct nfs_client *clp) |
1da177e4 LT |
4353 | { |
4354 | struct xdr_stream xdr; | |
4355 | struct compound_hdr hdr; | |
4356 | int status; | |
4357 | ||
4358 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4359 | status = decode_compound_hdr(&xdr, &hdr); | |
4360 | if (!status) | |
4361 | status = decode_setclientid(&xdr, clp); | |
4362 | if (!status) | |
0a8ea437 | 4363 | status = -nfs4_stat_to_errno(hdr.status); |
1da177e4 LT |
4364 | return status; |
4365 | } | |
4366 | ||
4367 | /* | |
4368 | * a SETCLIENTID_CONFIRM request | |
4369 | */ | |
8687b63a | 4370 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
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_setclientid_confirm(&xdr); | |
4380 | if (!status) | |
4381 | status = decode_putrootfh(&xdr); | |
4382 | if (!status) | |
4383 | status = decode_fsinfo(&xdr, fsinfo); | |
4384 | if (!status) | |
0a8ea437 | 4385 | status = -nfs4_stat_to_errno(hdr.status); |
1da177e4 LT |
4386 | return status; |
4387 | } | |
4388 | ||
4389 | /* | |
4390 | * DELEGRETURN request | |
4391 | */ | |
8687b63a | 4392 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4393 | { |
4394 | struct xdr_stream xdr; | |
4395 | struct compound_hdr hdr; | |
4396 | int status; | |
4397 | ||
4398 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4399 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4400 | if (status != 0) |
4401 | goto out; | |
4402 | status = decode_putfh(&xdr); | |
4403 | if (status != 0) | |
4404 | goto out; | |
4405 | status = decode_delegreturn(&xdr); | |
4406 | decode_getfattr(&xdr, res->fattr, res->server); | |
4407 | out: | |
1da177e4 LT |
4408 | return status; |
4409 | } | |
4410 | ||
683b57b4 TM |
4411 | /* |
4412 | * FS_LOCATIONS request | |
4413 | */ | |
8687b63a | 4414 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) |
683b57b4 TM |
4415 | { |
4416 | struct xdr_stream xdr; | |
4417 | struct compound_hdr hdr; | |
4418 | int status; | |
4419 | ||
4420 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4421 | status = decode_compound_hdr(&xdr, &hdr); | |
4422 | if (status != 0) | |
4423 | goto out; | |
4424 | if ((status = decode_putfh(&xdr)) != 0) | |
4425 | goto out; | |
4426 | if ((status = decode_lookup(&xdr)) != 0) | |
4427 | goto out; | |
4428 | xdr_enter_page(&xdr, PAGE_SIZE); | |
4429 | status = decode_getfattr(&xdr, &res->fattr, res->server); | |
4430 | out: | |
4431 | return status; | |
4432 | } | |
4433 | ||
0dbb4c67 | 4434 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4435 | { |
4436 | uint32_t bitmap[2] = {0}; | |
4437 | uint32_t len; | |
4438 | ||
4439 | if (!*p++) { | |
4440 | if (!*p) | |
4441 | return ERR_PTR(-EAGAIN); | |
4442 | entry->eof = 1; | |
4443 | return ERR_PTR(-EBADCOOKIE); | |
4444 | } | |
4445 | ||
4446 | entry->prev_cookie = entry->cookie; | |
4447 | p = xdr_decode_hyper(p, &entry->cookie); | |
4448 | entry->len = ntohl(*p++); | |
4449 | entry->name = (const char *) p; | |
4450 | p += XDR_QUADLEN(entry->len); | |
4451 | ||
4452 | /* | |
4453 | * In case the server doesn't return an inode number, | |
4454 | * we fake one here. (We don't use inode number 0, | |
4455 | * since glibc seems to choke on it...) | |
4456 | */ | |
4457 | entry->ino = 1; | |
4458 | ||
4459 | len = ntohl(*p++); /* bitmap length */ | |
4460 | if (len-- > 0) { | |
4461 | bitmap[0] = ntohl(*p++); | |
4462 | if (len-- > 0) { | |
4463 | bitmap[1] = ntohl(*p++); | |
4464 | p += len; | |
4465 | } | |
4466 | } | |
4467 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4468 | if (len > 0) { | |
97d312d0 MN |
4469 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4470 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4471 | /* Ignore the return value of rdattr_error for now */ | |
4472 | p++; | |
4473 | len--; | |
4474 | } | |
1da177e4 LT |
4475 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4476 | xdr_decode_hyper(p, &entry->ino); | |
4477 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4478 | xdr_decode_hyper(p, &entry->ino); | |
4479 | p += len; | |
4480 | } | |
4481 | ||
4482 | entry->eof = !p[0] && p[1]; | |
4483 | return p; | |
4484 | } | |
4485 | ||
4486 | /* | |
4487 | * We need to translate between nfs status return values and | |
4488 | * the local errno values which may not be the same. | |
4489 | */ | |
4490 | static struct { | |
4491 | int stat; | |
4492 | int errno; | |
4493 | } nfs_errtbl[] = { | |
4494 | { NFS4_OK, 0 }, | |
4495 | { NFS4ERR_PERM, EPERM }, | |
4496 | { NFS4ERR_NOENT, ENOENT }, | |
4497 | { NFS4ERR_IO, errno_NFSERR_IO }, | |
4498 | { NFS4ERR_NXIO, ENXIO }, | |
4499 | { NFS4ERR_ACCESS, EACCES }, | |
4500 | { NFS4ERR_EXIST, EEXIST }, | |
4501 | { NFS4ERR_XDEV, EXDEV }, | |
4502 | { NFS4ERR_NOTDIR, ENOTDIR }, | |
4503 | { NFS4ERR_ISDIR, EISDIR }, | |
4504 | { NFS4ERR_INVAL, EINVAL }, | |
4505 | { NFS4ERR_FBIG, EFBIG }, | |
4506 | { NFS4ERR_NOSPC, ENOSPC }, | |
4507 | { NFS4ERR_ROFS, EROFS }, | |
4508 | { NFS4ERR_MLINK, EMLINK }, | |
4509 | { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, | |
4510 | { NFS4ERR_NOTEMPTY, ENOTEMPTY }, | |
4511 | { NFS4ERR_DQUOT, EDQUOT }, | |
4512 | { NFS4ERR_STALE, ESTALE }, | |
4513 | { NFS4ERR_BADHANDLE, EBADHANDLE }, | |
6ebf3656 MN |
4514 | { NFS4ERR_BADOWNER, EINVAL }, |
4515 | { NFS4ERR_BADNAME, EINVAL }, | |
1da177e4 LT |
4516 | { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, |
4517 | { NFS4ERR_NOTSUPP, ENOTSUPP }, | |
4518 | { NFS4ERR_TOOSMALL, ETOOSMALL }, | |
4519 | { NFS4ERR_SERVERFAULT, ESERVERFAULT }, | |
4520 | { NFS4ERR_BADTYPE, EBADTYPE }, | |
4521 | { NFS4ERR_LOCKED, EAGAIN }, | |
4522 | { NFS4ERR_RESOURCE, EREMOTEIO }, | |
4523 | { NFS4ERR_SYMLINK, ELOOP }, | |
4524 | { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, | |
4525 | { NFS4ERR_DEADLOCK, EDEADLK }, | |
4526 | { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs | |
4527 | * to be handled by a | |
4528 | * middle-layer. | |
4529 | */ | |
4530 | { -1, EIO } | |
4531 | }; | |
4532 | ||
4533 | /* | |
4534 | * Convert an NFS error code to a local one. | |
4535 | * This one is used jointly by NFSv2 and NFSv3. | |
4536 | */ | |
4537 | static int | |
0a8ea437 | 4538 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4539 | { |
4540 | int i; | |
4541 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4542 | if (nfs_errtbl[i].stat == stat) | |
4543 | return nfs_errtbl[i].errno; | |
4544 | } | |
4545 | if (stat <= 10000 || stat > 10100) { | |
4546 | /* The server is looney tunes. */ | |
4547 | return ESERVERFAULT; | |
4548 | } | |
4549 | /* If we cannot translate the error, the recovery routines should | |
4550 | * handle it. | |
4551 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4552 | * not conflict with native Linux error codes. | |
4553 | */ | |
4554 | return stat; | |
4555 | } | |
4556 | ||
1da177e4 LT |
4557 | #define PROC(proc, argtype, restype) \ |
4558 | [NFSPROC4_CLNT_##proc] = { \ | |
4559 | .p_proc = NFSPROC4_COMPOUND, \ | |
4560 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4561 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4562 | .p_arglen = NFS4_##argtype##_sz, \ |
4563 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4564 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4565 | .p_name = #proc, \ | |
1da177e4 LT |
4566 | } |
4567 | ||
4568 | struct rpc_procinfo nfs4_procedures[] = { | |
4569 | PROC(READ, enc_read, dec_read), | |
4570 | PROC(WRITE, enc_write, dec_write), | |
4571 | PROC(COMMIT, enc_commit, dec_commit), | |
4572 | PROC(OPEN, enc_open, dec_open), | |
4573 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4574 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4575 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4576 | PROC(CLOSE, enc_close, dec_close), | |
4577 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4578 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4579 | PROC(RENEW, enc_renew, dec_renew), | |
4580 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4581 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4582 | PROC(LOCK, enc_lock, dec_lock), | |
4583 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4584 | PROC(LOCKU, enc_locku, dec_locku), | |
4585 | PROC(ACCESS, enc_access, dec_access), | |
4586 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4587 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4588 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4589 | PROC(REMOVE, enc_remove, dec_remove), | |
4590 | PROC(RENAME, enc_rename, dec_rename), | |
4591 | PROC(LINK, enc_link, dec_link), | |
4592 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4593 | PROC(CREATE, enc_create, dec_create), | |
4594 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4595 | PROC(STATFS, enc_statfs, dec_statfs), | |
4596 | PROC(READLINK, enc_readlink, dec_readlink), | |
4597 | PROC(READDIR, enc_readdir, dec_readdir), | |
4598 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4599 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4600 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4601 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4602 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4603 | }; |
4604 | ||
4605 | struct rpc_version nfs_version4 = { | |
4606 | .number = 4, | |
e8c96f8c | 4607 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4608 | .procs = nfs4_procedures |
4609 | }; | |
4610 | ||
4611 | /* | |
4612 | * Local variables: | |
4613 | * c-basic-offset: 8 | |
4614 | * End: | |
4615 | */ |