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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: | |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
1da177e4 LT |
113 | #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) | |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
119 | 4 /*server->ip_addr*/ + \ | |
120 | 1 /*Netid*/ + \ | |
121 | 6 /*uaddr*/ + \ | |
122 | 6 + (NFS4_VERIFIER_SIZE >> 2)) | |
123 | #define decode_setclientid_maxsz \ | |
124 | (op_decode_hdr_maxsz + \ | |
125 | 2 + \ | |
126 | 1024) /* large value for CLID_INUSE */ | |
127 | #define encode_setclientid_confirm_maxsz \ | |
128 | (op_encode_hdr_maxsz + \ | |
129 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
130 | #define decode_setclientid_confirm_maxsz \ | |
131 | (op_decode_hdr_maxsz) | |
e6889620 TM |
132 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
133 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
134 | #define encode_share_access_maxsz \ |
135 | (2) | |
9104a55d | 136 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
137 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
138 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
139 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
140 | 2 + encode_share_access_maxsz + 2 + \ | |
141 | open_owner_id_maxsz + \ | |
142 | encode_opentype_maxsz + \ | |
143 | encode_claim_null_maxsz) | |
144 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 145 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
146 | decode_ace_maxsz) |
147 | #define decode_change_info_maxsz (5) | |
148 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 149 | decode_stateid_maxsz + \ |
2cebf828 TM |
150 | decode_change_info_maxsz + 1 + \ |
151 | nfs4_fattr_bitmap_maxsz + \ | |
152 | decode_delegation_maxsz) | |
9104a55d TM |
153 | #define encode_open_confirm_maxsz \ |
154 | (op_encode_hdr_maxsz + \ | |
155 | encode_stateid_maxsz + 1) | |
156 | #define decode_open_confirm_maxsz \ | |
157 | (op_decode_hdr_maxsz + \ | |
158 | decode_stateid_maxsz) | |
159 | #define encode_open_downgrade_maxsz \ | |
160 | (op_encode_hdr_maxsz + \ | |
161 | encode_stateid_maxsz + 1 + \ | |
162 | encode_share_access_maxsz) | |
163 | #define decode_open_downgrade_maxsz \ | |
164 | (op_decode_hdr_maxsz + \ | |
165 | decode_stateid_maxsz) | |
166 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
167 | 1 + encode_stateid_maxsz) | |
168 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
169 | decode_stateid_maxsz) | |
170 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
171 | encode_stateid_maxsz + \ | |
172 | encode_attrs_maxsz) | |
173 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
174 | nfs4_fattr_bitmap_maxsz) | |
175 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
176 | encode_stateid_maxsz + 3) | |
177 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
178 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
179 | 2 + encode_verifier_maxsz + 5) | |
180 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
181 | decode_verifier_maxsz) | |
182 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
183 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
184 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
185 | encode_stateid_maxsz + 4) | |
186 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
187 | 2 + decode_verifier_maxsz) | |
188 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
189 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
190 | decode_verifier_maxsz) | |
1da177e4 LT |
191 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
192 | nfs4_name_maxsz) | |
193 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ | |
194 | 2 * nfs4_name_maxsz) | |
195 | #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) | |
196 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ | |
197 | nfs4_name_maxsz) | |
198 | #define decode_link_maxsz (op_decode_hdr_maxsz + 5) | |
9104a55d TM |
199 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
200 | 7 + \ | |
201 | 1 + encode_stateid_maxsz + 8) | |
202 | #define decode_lock_denied_maxsz \ | |
203 | (8 + decode_lockowner_maxsz) | |
204 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
205 | decode_lock_denied_maxsz) | |
206 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
207 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
208 | decode_lock_denied_maxsz) | |
209 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
210 | encode_stateid_maxsz + \ | |
211 | 4) | |
212 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
213 | decode_stateid_maxsz) | |
214 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
215 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
216 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
217 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 218 | 1 + \ |
96928206 | 219 | nfs4_fattr_maxsz) |
1da177e4 LT |
220 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
221 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
222 | 1 + 2 + nfs4_name_maxsz + \ |
223 | encode_attrs_maxsz) | |
2cebf828 TM |
224 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
225 | decode_change_info_maxsz + \ | |
226 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
227 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
228 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
229 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
230 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
231 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
232 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
233 | nfs4_fattr_bitmap_maxsz + 1) | |
234 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
235 | encode_stateid_maxsz + 3) | |
236 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
237 | #define encode_fs_locations_maxsz \ |
238 | (encode_getattr_maxsz) | |
239 | #define decode_fs_locations_maxsz \ | |
240 | (0) | |
1da177e4 LT |
241 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
242 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
243 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
244 | encode_putfh_maxsz + \ | |
9104a55d | 245 | encode_read_maxsz) |
1da177e4 LT |
246 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
247 | decode_putfh_maxsz + \ | |
9104a55d | 248 | decode_read_maxsz) |
1da177e4 LT |
249 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
250 | encode_putfh_maxsz + \ | |
9104a55d | 251 | encode_readlink_maxsz) |
1da177e4 LT |
252 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
253 | decode_putfh_maxsz + \ | |
9104a55d | 254 | decode_readlink_maxsz) |
1da177e4 LT |
255 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
256 | encode_putfh_maxsz + \ | |
9104a55d | 257 | encode_readdir_maxsz) |
1da177e4 LT |
258 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
259 | decode_putfh_maxsz + \ | |
9104a55d | 260 | decode_readdir_maxsz) |
1da177e4 LT |
261 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
262 | encode_putfh_maxsz + \ | |
9104a55d | 263 | encode_write_maxsz + \ |
4f9838c7 | 264 | encode_getattr_maxsz) |
1da177e4 LT |
265 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
266 | decode_putfh_maxsz + \ | |
9104a55d | 267 | decode_write_maxsz + \ |
4f9838c7 | 268 | decode_getattr_maxsz) |
1da177e4 LT |
269 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
270 | encode_putfh_maxsz + \ | |
9104a55d | 271 | encode_commit_maxsz + \ |
4f9838c7 | 272 | encode_getattr_maxsz) |
1da177e4 LT |
273 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
274 | decode_putfh_maxsz + \ | |
9104a55d | 275 | decode_commit_maxsz + \ |
4f9838c7 | 276 | decode_getattr_maxsz) |
1da177e4 | 277 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
2cebf828 TM |
278 | encode_putfh_maxsz + \ |
279 | encode_savefh_maxsz + \ | |
280 | encode_open_maxsz + \ | |
281 | encode_getfh_maxsz + \ | |
282 | encode_getattr_maxsz + \ | |
283 | encode_restorefh_maxsz + \ | |
284 | encode_getattr_maxsz) | |
1da177e4 | 285 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
2cebf828 TM |
286 | decode_putfh_maxsz + \ |
287 | decode_savefh_maxsz + \ | |
288 | decode_open_maxsz + \ | |
289 | decode_getfh_maxsz + \ | |
290 | decode_getattr_maxsz + \ | |
291 | decode_restorefh_maxsz + \ | |
292 | decode_getattr_maxsz) | |
9104a55d TM |
293 | #define NFS4_enc_open_confirm_sz \ |
294 | (compound_encode_hdr_maxsz + \ | |
295 | encode_putfh_maxsz + \ | |
296 | encode_open_confirm_maxsz) | |
297 | #define NFS4_dec_open_confirm_sz \ | |
298 | (compound_decode_hdr_maxsz + \ | |
299 | decode_putfh_maxsz + \ | |
300 | decode_open_confirm_maxsz) | |
1da177e4 LT |
301 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
302 | encode_putfh_maxsz + \ | |
2cebf828 TM |
303 | encode_open_maxsz + \ |
304 | encode_getattr_maxsz) | |
1da177e4 LT |
305 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
306 | decode_putfh_maxsz + \ | |
2cebf828 TM |
307 | decode_open_maxsz + \ |
308 | decode_getattr_maxsz) | |
1da177e4 LT |
309 | #define NFS4_enc_open_downgrade_sz \ |
310 | (compound_encode_hdr_maxsz + \ | |
9104a55d TM |
311 | encode_putfh_maxsz + \ |
312 | encode_open_downgrade_maxsz + \ | |
313 | encode_getattr_maxsz) | |
1da177e4 LT |
314 | #define NFS4_dec_open_downgrade_sz \ |
315 | (compound_decode_hdr_maxsz + \ | |
9104a55d TM |
316 | decode_putfh_maxsz + \ |
317 | decode_open_downgrade_maxsz + \ | |
318 | decode_getattr_maxsz) | |
319 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
320 | encode_putfh_maxsz + \ | |
321 | encode_close_maxsz + \ | |
322 | encode_getattr_maxsz) | |
323 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
324 | decode_putfh_maxsz + \ | |
325 | decode_close_maxsz + \ | |
326 | decode_getattr_maxsz) | |
327 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
328 | encode_putfh_maxsz + \ | |
329 | encode_setattr_maxsz + \ | |
330 | encode_getattr_maxsz) | |
331 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
332 | decode_putfh_maxsz + \ | |
333 | decode_setattr_maxsz + \ | |
334 | decode_getattr_maxsz) | |
1da177e4 LT |
335 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
336 | encode_putfh_maxsz + \ | |
337 | encode_fsinfo_maxsz) | |
338 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
339 | decode_putfh_maxsz + \ | |
340 | decode_fsinfo_maxsz) | |
341 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
342 | encode_renew_maxsz) | |
343 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
344 | decode_renew_maxsz) | |
345 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
346 | encode_setclientid_maxsz) | |
347 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
348 | decode_setclientid_maxsz) | |
349 | #define NFS4_enc_setclientid_confirm_sz \ | |
350 | (compound_encode_hdr_maxsz + \ | |
351 | encode_setclientid_confirm_maxsz + \ | |
352 | encode_putrootfh_maxsz + \ | |
353 | encode_fsinfo_maxsz) | |
354 | #define NFS4_dec_setclientid_confirm_sz \ | |
355 | (compound_decode_hdr_maxsz + \ | |
356 | decode_setclientid_confirm_maxsz + \ | |
357 | decode_putrootfh_maxsz + \ | |
358 | decode_fsinfo_maxsz) | |
359 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
360 | encode_putfh_maxsz + \ | |
9104a55d | 361 | encode_lock_maxsz) |
1da177e4 LT |
362 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
363 | decode_putfh_maxsz + \ | |
9104a55d | 364 | decode_lock_maxsz) |
1da177e4 LT |
365 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
366 | encode_putfh_maxsz + \ | |
9104a55d TM |
367 | encode_lockt_maxsz) |
368 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
369 | decode_putfh_maxsz + \ | |
370 | decode_lockt_maxsz) | |
1da177e4 LT |
371 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
372 | encode_putfh_maxsz + \ | |
9104a55d | 373 | encode_locku_maxsz) |
1da177e4 LT |
374 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
375 | decode_putfh_maxsz + \ | |
9104a55d | 376 | decode_locku_maxsz) |
1da177e4 LT |
377 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
378 | encode_putfh_maxsz + \ | |
9104a55d | 379 | encode_access_maxsz) |
1da177e4 LT |
380 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
381 | decode_putfh_maxsz + \ | |
9104a55d | 382 | decode_access_maxsz) |
1da177e4 LT |
383 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
384 | encode_putfh_maxsz + \ | |
385 | encode_getattr_maxsz) | |
386 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
387 | decode_putfh_maxsz + \ | |
388 | decode_getattr_maxsz) | |
389 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
390 | encode_putfh_maxsz + \ | |
391 | encode_lookup_maxsz + \ | |
392 | encode_getattr_maxsz + \ | |
393 | encode_getfh_maxsz) | |
394 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
395 | decode_putfh_maxsz + \ | |
e6889620 | 396 | decode_lookup_maxsz + \ |
1da177e4 LT |
397 | decode_getattr_maxsz + \ |
398 | decode_getfh_maxsz) | |
399 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
400 | encode_putrootfh_maxsz + \ | |
401 | encode_getattr_maxsz + \ | |
402 | encode_getfh_maxsz) | |
403 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
404 | decode_putrootfh_maxsz + \ | |
405 | decode_getattr_maxsz + \ | |
406 | decode_getfh_maxsz) | |
407 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
408 | encode_putfh_maxsz + \ | |
16e42959 TM |
409 | encode_remove_maxsz + \ |
410 | encode_getattr_maxsz) | |
1da177e4 LT |
411 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
412 | decode_putfh_maxsz + \ | |
16e42959 TM |
413 | op_decode_hdr_maxsz + 5 + \ |
414 | decode_getattr_maxsz) | |
1da177e4 LT |
415 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
416 | encode_putfh_maxsz + \ | |
417 | encode_savefh_maxsz + \ | |
418 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
419 | encode_rename_maxsz + \ |
420 | encode_getattr_maxsz + \ | |
421 | encode_restorefh_maxsz + \ | |
422 | encode_getattr_maxsz) | |
1da177e4 LT |
423 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
424 | decode_putfh_maxsz + \ | |
425 | decode_savefh_maxsz + \ | |
426 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
427 | decode_rename_maxsz + \ |
428 | decode_getattr_maxsz + \ | |
429 | decode_restorefh_maxsz + \ | |
430 | decode_getattr_maxsz) | |
1da177e4 LT |
431 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
432 | encode_putfh_maxsz + \ | |
433 | encode_savefh_maxsz + \ | |
434 | encode_putfh_maxsz + \ | |
91ba2eee TM |
435 | encode_link_maxsz + \ |
436 | decode_getattr_maxsz + \ | |
437 | encode_restorefh_maxsz + \ | |
438 | decode_getattr_maxsz) | |
1da177e4 LT |
439 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
440 | decode_putfh_maxsz + \ | |
441 | decode_savefh_maxsz + \ | |
442 | decode_putfh_maxsz + \ | |
91ba2eee TM |
443 | decode_link_maxsz + \ |
444 | decode_getattr_maxsz + \ | |
445 | decode_restorefh_maxsz + \ | |
446 | decode_getattr_maxsz) | |
1da177e4 LT |
447 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
448 | encode_putfh_maxsz + \ | |
449 | encode_symlink_maxsz + \ | |
450 | encode_getattr_maxsz + \ | |
451 | encode_getfh_maxsz) | |
452 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
453 | decode_putfh_maxsz + \ | |
454 | decode_symlink_maxsz + \ | |
455 | decode_getattr_maxsz + \ | |
456 | decode_getfh_maxsz) | |
457 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
458 | encode_putfh_maxsz + \ | |
56ae19f3 | 459 | encode_savefh_maxsz + \ |
1da177e4 | 460 | encode_create_maxsz + \ |
56ae19f3 | 461 | encode_getfh_maxsz + \ |
1da177e4 | 462 | encode_getattr_maxsz + \ |
56ae19f3 TM |
463 | encode_restorefh_maxsz + \ |
464 | encode_getattr_maxsz) | |
1da177e4 LT |
465 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
466 | decode_putfh_maxsz + \ | |
56ae19f3 | 467 | decode_savefh_maxsz + \ |
1da177e4 | 468 | decode_create_maxsz + \ |
56ae19f3 | 469 | decode_getfh_maxsz + \ |
1da177e4 | 470 | decode_getattr_maxsz + \ |
56ae19f3 TM |
471 | decode_restorefh_maxsz + \ |
472 | decode_getattr_maxsz) | |
1da177e4 LT |
473 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
474 | encode_putfh_maxsz + \ | |
475 | encode_getattr_maxsz) | |
476 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
477 | decode_putfh_maxsz + \ | |
478 | decode_getattr_maxsz) | |
479 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
480 | encode_putfh_maxsz + \ | |
9104a55d | 481 | encode_statfs_maxsz) |
1da177e4 LT |
482 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
483 | decode_putfh_maxsz + \ | |
9104a55d | 484 | decode_statfs_maxsz) |
1da177e4 | 485 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
ab91f264 | 486 | encode_putfh_maxsz + \ |
1da177e4 LT |
487 | encode_getattr_maxsz) |
488 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
ab91f264 | 489 | decode_putfh_maxsz + \ |
1da177e4 LT |
490 | decode_getattr_maxsz) |
491 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
492 | encode_putfh_maxsz + \ | |
fa178f29 TM |
493 | encode_delegreturn_maxsz + \ |
494 | encode_getattr_maxsz) | |
1da177e4 | 495 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
fa178f29 TM |
496 | decode_delegreturn_maxsz + \ |
497 | decode_getattr_maxsz) | |
029d105e BF |
498 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
499 | encode_putfh_maxsz + \ | |
9104a55d | 500 | encode_getacl_maxsz) |
029d105e BF |
501 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
502 | decode_putfh_maxsz + \ | |
9104a55d | 503 | decode_getacl_maxsz) |
23ec6965 BF |
504 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
505 | encode_putfh_maxsz + \ | |
9104a55d | 506 | encode_setacl_maxsz) |
23ec6965 BF |
507 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
508 | decode_putfh_maxsz + \ | |
9104a55d | 509 | decode_setacl_maxsz) |
683b57b4 TM |
510 | #define NFS4_enc_fs_locations_sz \ |
511 | (compound_encode_hdr_maxsz + \ | |
512 | encode_putfh_maxsz + \ | |
e6889620 TM |
513 | encode_lookup_maxsz + \ |
514 | encode_fs_locations_maxsz) | |
683b57b4 TM |
515 | #define NFS4_dec_fs_locations_sz \ |
516 | (compound_decode_hdr_maxsz + \ | |
517 | decode_putfh_maxsz + \ | |
e6889620 TM |
518 | decode_lookup_maxsz + \ |
519 | decode_fs_locations_maxsz) | |
1da177e4 LT |
520 | |
521 | static struct { | |
522 | unsigned int mode; | |
523 | unsigned int nfs2type; | |
524 | } nfs_type2fmt[] = { | |
525 | { 0, NFNON }, | |
526 | { S_IFREG, NFREG }, | |
527 | { S_IFDIR, NFDIR }, | |
528 | { S_IFBLK, NFBLK }, | |
529 | { S_IFCHR, NFCHR }, | |
530 | { S_IFLNK, NFLNK }, | |
531 | { S_IFSOCK, NFSOCK }, | |
532 | { S_IFIFO, NFFIFO }, | |
533 | { 0, NFNON }, | |
534 | { 0, NFNON }, | |
535 | }; | |
536 | ||
537 | struct compound_hdr { | |
538 | int32_t status; | |
539 | uint32_t nops; | |
540 | uint32_t taglen; | |
541 | char * tag; | |
542 | }; | |
543 | ||
544 | /* | |
545 | * START OF "GENERIC" ENCODE ROUTINES. | |
546 | * These may look a little ugly since they are imported from a "generic" | |
547 | * set of XDR encode/decode routines which are intended to be shared by | |
548 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
549 | * | |
550 | * If the pain of reading these is too great, it should be a straightforward | |
551 | * task to translate them into Linux-specific versions which are more | |
552 | * consistent with the style used in NFSv2/v3... | |
553 | */ | |
554 | #define WRITE32(n) *p++ = htonl(n) | |
555 | #define WRITE64(n) do { \ | |
556 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
557 | *p++ = htonl((uint32_t)(n)); \ | |
558 | } while (0) | |
559 | #define WRITEMEM(ptr,nbytes) do { \ | |
560 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
561 | } while (0) | |
562 | ||
563 | #define RESERVE_SPACE(nbytes) do { \ | |
564 | p = xdr_reserve_space(xdr, nbytes); \ | |
565 | if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ | |
566 | BUG_ON(!p); \ | |
567 | } while (0) | |
568 | ||
569 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
570 | { | |
8687b63a | 571 | __be32 *p; |
1da177e4 LT |
572 | |
573 | p = xdr_reserve_space(xdr, 4 + len); | |
574 | BUG_ON(p == NULL); | |
575 | xdr_encode_opaque(p, str, len); | |
576 | } | |
577 | ||
578 | static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
579 | { | |
8687b63a | 580 | __be32 *p; |
1da177e4 LT |
581 | |
582 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
583 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
584 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
585 | WRITE32(hdr->taglen); | |
586 | WRITEMEM(hdr->tag, hdr->taglen); | |
587 | WRITE32(NFS4_MINOR_VERSION); | |
588 | WRITE32(hdr->nops); | |
589 | return 0; | |
590 | } | |
591 | ||
592 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
593 | { | |
8687b63a | 594 | __be32 *p; |
1da177e4 LT |
595 | |
596 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
597 | BUG_ON(p == NULL); | |
598 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
599 | } | |
600 | ||
601 | static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) | |
602 | { | |
603 | char owner_name[IDMAP_NAMESZ]; | |
604 | char owner_group[IDMAP_NAMESZ]; | |
605 | int owner_namelen = 0; | |
606 | int owner_grouplen = 0; | |
8687b63a AV |
607 | __be32 *p; |
608 | __be32 *q; | |
1da177e4 LT |
609 | int len; |
610 | uint32_t bmval0 = 0; | |
611 | uint32_t bmval1 = 0; | |
612 | int status; | |
613 | ||
614 | /* | |
615 | * We reserve enough space to write the entire attribute buffer at once. | |
616 | * In the worst-case, this would be | |
617 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
618 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 619 | * such as owner/group. |
1da177e4 LT |
620 | */ |
621 | len = 16; | |
622 | ||
623 | /* Sigh */ | |
624 | if (iap->ia_valid & ATTR_SIZE) | |
625 | len += 8; | |
626 | if (iap->ia_valid & ATTR_MODE) | |
627 | len += 4; | |
628 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 629 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 LT |
630 | if (owner_namelen < 0) { |
631 | printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", | |
632 | iap->ia_uid); | |
633 | /* XXX */ | |
634 | strcpy(owner_name, "nobody"); | |
635 | owner_namelen = sizeof("nobody") - 1; | |
636 | /* goto out; */ | |
637 | } | |
638 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
639 | } | |
640 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 641 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 LT |
642 | if (owner_grouplen < 0) { |
643 | printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", | |
644 | iap->ia_gid); | |
645 | strcpy(owner_group, "nobody"); | |
646 | owner_grouplen = sizeof("nobody") - 1; | |
647 | /* goto out; */ | |
648 | } | |
649 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
650 | } | |
651 | if (iap->ia_valid & ATTR_ATIME_SET) | |
652 | len += 16; | |
653 | else if (iap->ia_valid & ATTR_ATIME) | |
654 | len += 4; | |
655 | if (iap->ia_valid & ATTR_MTIME_SET) | |
656 | len += 16; | |
657 | else if (iap->ia_valid & ATTR_MTIME) | |
658 | len += 4; | |
659 | RESERVE_SPACE(len); | |
660 | ||
661 | /* | |
662 | * We write the bitmap length now, but leave the bitmap and the attribute | |
663 | * buffer length to be backfilled at the end of this routine. | |
664 | */ | |
665 | WRITE32(2); | |
666 | q = p; | |
667 | p += 3; | |
668 | ||
669 | if (iap->ia_valid & ATTR_SIZE) { | |
670 | bmval0 |= FATTR4_WORD0_SIZE; | |
671 | WRITE64(iap->ia_size); | |
672 | } | |
673 | if (iap->ia_valid & ATTR_MODE) { | |
674 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 675 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
676 | } |
677 | if (iap->ia_valid & ATTR_UID) { | |
678 | bmval1 |= FATTR4_WORD1_OWNER; | |
679 | WRITE32(owner_namelen); | |
680 | WRITEMEM(owner_name, owner_namelen); | |
681 | } | |
682 | if (iap->ia_valid & ATTR_GID) { | |
683 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
684 | WRITE32(owner_grouplen); | |
685 | WRITEMEM(owner_group, owner_grouplen); | |
686 | } | |
687 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
688 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
689 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
690 | WRITE32(0); | |
691 | WRITE32(iap->ia_mtime.tv_sec); | |
692 | WRITE32(iap->ia_mtime.tv_nsec); | |
693 | } | |
694 | else if (iap->ia_valid & ATTR_ATIME) { | |
695 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
696 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
697 | } | |
698 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
699 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
700 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
701 | WRITE32(0); | |
702 | WRITE32(iap->ia_mtime.tv_sec); | |
703 | WRITE32(iap->ia_mtime.tv_nsec); | |
704 | } | |
705 | else if (iap->ia_valid & ATTR_MTIME) { | |
706 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
707 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
708 | } | |
709 | ||
710 | /* | |
711 | * Now we backfill the bitmap and the attribute buffer length. | |
712 | */ | |
713 | if (len != ((char *)p - (char *)q) + 4) { | |
714 | printk ("encode_attr: Attr length calculation error! %u != %Zu\n", | |
715 | len, ((char *)p - (char *)q) + 4); | |
716 | BUG(); | |
717 | } | |
718 | len = (char *)p - (char *)q - 12; | |
719 | *q++ = htonl(bmval0); | |
720 | *q++ = htonl(bmval1); | |
721 | *q++ = htonl(len); | |
722 | ||
723 | status = 0; | |
724 | /* out: */ | |
725 | return status; | |
726 | } | |
727 | ||
728 | static int encode_access(struct xdr_stream *xdr, u32 access) | |
729 | { | |
8687b63a | 730 | __be32 *p; |
1da177e4 LT |
731 | |
732 | RESERVE_SPACE(8); | |
733 | WRITE32(OP_ACCESS); | |
734 | WRITE32(access); | |
735 | ||
736 | return 0; | |
737 | } | |
738 | ||
739 | static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) | |
740 | { | |
8687b63a | 741 | __be32 *p; |
1da177e4 | 742 | |
8ae20abd | 743 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 744 | WRITE32(OP_CLOSE); |
cee54fc9 | 745 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 746 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
747 | |
748 | return 0; | |
749 | } | |
750 | ||
751 | static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) | |
752 | { | |
8687b63a | 753 | __be32 *p; |
1da177e4 LT |
754 | |
755 | RESERVE_SPACE(16); | |
756 | WRITE32(OP_COMMIT); | |
757 | WRITE64(args->offset); | |
758 | WRITE32(args->count); | |
759 | ||
760 | return 0; | |
761 | } | |
762 | ||
763 | static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) | |
764 | { | |
8687b63a | 765 | __be32 *p; |
1da177e4 LT |
766 | |
767 | RESERVE_SPACE(8); | |
768 | WRITE32(OP_CREATE); | |
769 | WRITE32(create->ftype); | |
770 | ||
771 | switch (create->ftype) { | |
772 | case NF4LNK: | |
94a6d753 CL |
773 | RESERVE_SPACE(4); |
774 | WRITE32(create->u.symlink.len); | |
775 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
776 | break; |
777 | ||
778 | case NF4BLK: case NF4CHR: | |
779 | RESERVE_SPACE(8); | |
780 | WRITE32(create->u.device.specdata1); | |
781 | WRITE32(create->u.device.specdata2); | |
782 | break; | |
783 | ||
784 | default: | |
785 | break; | |
786 | } | |
787 | ||
788 | RESERVE_SPACE(4 + create->name->len); | |
789 | WRITE32(create->name->len); | |
790 | WRITEMEM(create->name->name, create->name->len); | |
791 | ||
792 | return encode_attrs(xdr, create->attrs, create->server); | |
793 | } | |
794 | ||
795 | static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) | |
796 | { | |
8687b63a | 797 | __be32 *p; |
1da177e4 LT |
798 | |
799 | RESERVE_SPACE(12); | |
800 | WRITE32(OP_GETATTR); | |
801 | WRITE32(1); | |
802 | WRITE32(bitmap); | |
803 | return 0; | |
804 | } | |
805 | ||
806 | static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) | |
807 | { | |
8687b63a | 808 | __be32 *p; |
1da177e4 LT |
809 | |
810 | RESERVE_SPACE(16); | |
811 | WRITE32(OP_GETATTR); | |
812 | WRITE32(2); | |
813 | WRITE32(bm0); | |
814 | WRITE32(bm1); | |
815 | return 0; | |
816 | } | |
817 | ||
818 | static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) | |
819 | { | |
1da177e4 LT |
820 | return encode_getattr_two(xdr, |
821 | bitmask[0] & nfs4_fattr_bitmap[0], | |
822 | bitmask[1] & nfs4_fattr_bitmap[1]); | |
823 | } | |
824 | ||
825 | static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) | |
826 | { | |
1da177e4 LT |
827 | return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
828 | bitmask[1] & nfs4_fsinfo_bitmap[1]); | |
829 | } | |
830 | ||
830b8e33 MN |
831 | static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) |
832 | { | |
833 | return encode_getattr_two(xdr, | |
834 | bitmask[0] & nfs4_fs_locations_bitmap[0], | |
835 | bitmask[1] & nfs4_fs_locations_bitmap[1]); | |
836 | } | |
837 | ||
1da177e4 LT |
838 | static int encode_getfh(struct xdr_stream *xdr) |
839 | { | |
8687b63a | 840 | __be32 *p; |
1da177e4 LT |
841 | |
842 | RESERVE_SPACE(4); | |
843 | WRITE32(OP_GETFH); | |
844 | ||
845 | return 0; | |
846 | } | |
847 | ||
848 | static int encode_link(struct xdr_stream *xdr, const struct qstr *name) | |
849 | { | |
8687b63a | 850 | __be32 *p; |
1da177e4 LT |
851 | |
852 | RESERVE_SPACE(8 + name->len); | |
853 | WRITE32(OP_LINK); | |
854 | WRITE32(name->len); | |
855 | WRITEMEM(name->name, name->len); | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
911d1aaf TM |
860 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
861 | { | |
862 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
863 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
864 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
865 | } | |
866 | ||
867 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
868 | { | |
869 | if (fl->fl_end == OFFSET_MAX) | |
870 | return ~(uint64_t)0; | |
871 | return fl->fl_end - fl->fl_start + 1; | |
872 | } | |
873 | ||
1da177e4 LT |
874 | /* |
875 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
876 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
877 | */ | |
911d1aaf | 878 | static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) |
1da177e4 | 879 | { |
8687b63a | 880 | __be32 *p; |
1da177e4 LT |
881 | |
882 | RESERVE_SPACE(32); | |
883 | WRITE32(OP_LOCK); | |
911d1aaf TM |
884 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
885 | WRITE32(args->reclaim); | |
886 | WRITE64(args->fl->fl_start); | |
887 | WRITE64(nfs4_lock_length(args->fl)); | |
888 | WRITE32(args->new_lock_owner); | |
889 | if (args->new_lock_owner){ | |
9f958ab8 | 890 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 891 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 892 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
893 | WRITE32(args->lock_seqid->sequence->counter); |
894 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
895 | WRITE32(16); |
896 | WRITEMEM("lock id:", 8); | |
897 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
898 | } |
899 | else { | |
8ae20abd TM |
900 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
901 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 902 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 LT |
903 | } |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
911d1aaf | 908 | static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) |
1da177e4 | 909 | { |
8687b63a | 910 | __be32 *p; |
1da177e4 | 911 | |
9f958ab8 | 912 | RESERVE_SPACE(52); |
1da177e4 | 913 | WRITE32(OP_LOCKT); |
911d1aaf TM |
914 | WRITE32(nfs4_lock_type(args->fl, 0)); |
915 | WRITE64(args->fl->fl_start); | |
916 | WRITE64(nfs4_lock_length(args->fl)); | |
917 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
918 | WRITE32(16); |
919 | WRITEMEM("lock id:", 8); | |
920 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
921 | |
922 | return 0; | |
923 | } | |
924 | ||
911d1aaf | 925 | static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) |
1da177e4 | 926 | { |
8687b63a | 927 | __be32 *p; |
1da177e4 | 928 | |
8ae20abd | 929 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 930 | WRITE32(OP_LOCKU); |
911d1aaf TM |
931 | WRITE32(nfs4_lock_type(args->fl, 0)); |
932 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 933 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
934 | WRITE64(args->fl->fl_start); |
935 | WRITE64(nfs4_lock_length(args->fl)); | |
1da177e4 LT |
936 | |
937 | return 0; | |
938 | } | |
939 | ||
940 | static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) | |
941 | { | |
942 | int len = name->len; | |
8687b63a | 943 | __be32 *p; |
1da177e4 LT |
944 | |
945 | RESERVE_SPACE(8 + len); | |
946 | WRITE32(OP_LOOKUP); | |
947 | WRITE32(len); | |
948 | WRITEMEM(name->name, len); | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
953 | static void encode_share_access(struct xdr_stream *xdr, int open_flags) | |
954 | { | |
8687b63a | 955 | __be32 *p; |
1da177e4 LT |
956 | |
957 | RESERVE_SPACE(8); | |
958 | switch (open_flags & (FMODE_READ|FMODE_WRITE)) { | |
959 | case FMODE_READ: | |
960 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
961 | break; | |
962 | case FMODE_WRITE: | |
963 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
964 | break; | |
965 | case FMODE_READ|FMODE_WRITE: | |
966 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
967 | break; | |
968 | default: | |
969 | BUG(); | |
970 | } | |
971 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
972 | } | |
973 | ||
974 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
975 | { | |
8687b63a | 976 | __be32 *p; |
1da177e4 LT |
977 | /* |
978 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
979 | * owner 4 = 32 | |
980 | */ | |
981 | RESERVE_SPACE(8); | |
982 | WRITE32(OP_OPEN); | |
cee54fc9 | 983 | WRITE32(arg->seqid->sequence->counter); |
1da177e4 | 984 | encode_share_access(xdr, arg->open_flags); |
9f958ab8 | 985 | RESERVE_SPACE(28); |
1da177e4 | 986 | WRITE64(arg->clientid); |
9f958ab8 TM |
987 | WRITE32(16); |
988 | WRITEMEM("open id:", 8); | |
989 | WRITE64(arg->id); | |
1da177e4 LT |
990 | } |
991 | ||
992 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
993 | { | |
8687b63a | 994 | __be32 *p; |
1da177e4 LT |
995 | |
996 | RESERVE_SPACE(4); | |
997 | switch(arg->open_flags & O_EXCL) { | |
998 | case 0: | |
999 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1000 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1001 | break; | |
1002 | default: | |
1003 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1004 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1009 | { | |
8687b63a | 1010 | __be32 *p; |
1da177e4 LT |
1011 | |
1012 | RESERVE_SPACE(4); | |
1013 | switch (arg->open_flags & O_CREAT) { | |
1014 | case 0: | |
1015 | WRITE32(NFS4_OPEN_NOCREATE); | |
1016 | break; | |
1017 | default: | |
1018 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1019 | WRITE32(NFS4_OPEN_CREATE); | |
1020 | encode_createmode(xdr, arg); | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) | |
1025 | { | |
8687b63a | 1026 | __be32 *p; |
1da177e4 LT |
1027 | |
1028 | RESERVE_SPACE(4); | |
1029 | switch (delegation_type) { | |
1030 | case 0: | |
1031 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1032 | break; | |
1033 | case FMODE_READ: | |
1034 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1035 | break; | |
1036 | case FMODE_WRITE|FMODE_READ: | |
1037 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1038 | break; | |
1039 | default: | |
1040 | BUG(); | |
1041 | } | |
1042 | } | |
1043 | ||
1044 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1045 | { | |
8687b63a | 1046 | __be32 *p; |
1da177e4 LT |
1047 | |
1048 | RESERVE_SPACE(4); | |
1049 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1050 | encode_string(xdr, name->len, name->name); | |
1051 | } | |
1052 | ||
1053 | static inline void encode_claim_previous(struct xdr_stream *xdr, int type) | |
1054 | { | |
8687b63a | 1055 | __be32 *p; |
1da177e4 LT |
1056 | |
1057 | RESERVE_SPACE(4); | |
1058 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1059 | encode_delegation_type(xdr, type); | |
1060 | } | |
1061 | ||
1062 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1063 | { | |
8687b63a | 1064 | __be32 *p; |
1da177e4 | 1065 | |
8ae20abd | 1066 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1067 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1068 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1069 | encode_string(xdr, name->len, name->name); |
1070 | } | |
1071 | ||
1072 | static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1073 | { | |
1074 | encode_openhdr(xdr, arg); | |
1075 | encode_opentype(xdr, arg); | |
1076 | switch (arg->claim) { | |
1077 | case NFS4_OPEN_CLAIM_NULL: | |
1078 | encode_claim_null(xdr, arg->name); | |
1079 | break; | |
1080 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1081 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1082 | break; | |
1083 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1084 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1085 | break; | |
1086 | default: | |
1087 | BUG(); | |
1088 | } | |
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) | |
1093 | { | |
8687b63a | 1094 | __be32 *p; |
1da177e4 | 1095 | |
8ae20abd | 1096 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1097 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1098 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1099 | WRITE32(arg->seqid->sequence->counter); |
1da177e4 LT |
1100 | |
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) | |
1105 | { | |
8687b63a | 1106 | __be32 *p; |
1da177e4 | 1107 | |
8ae20abd | 1108 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1109 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1110 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1111 | WRITE32(arg->seqid->sequence->counter); |
1da177e4 LT |
1112 | encode_share_access(xdr, arg->open_flags); |
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | static int | |
1117 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) | |
1118 | { | |
1119 | int len = fh->size; | |
8687b63a | 1120 | __be32 *p; |
1da177e4 LT |
1121 | |
1122 | RESERVE_SPACE(8 + len); | |
1123 | WRITE32(OP_PUTFH); | |
1124 | WRITE32(len); | |
1125 | WRITEMEM(fh->data, len); | |
1126 | ||
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | static int encode_putrootfh(struct xdr_stream *xdr) | |
1131 | { | |
8687b63a | 1132 | __be32 *p; |
1da177e4 LT |
1133 | |
1134 | RESERVE_SPACE(4); | |
1135 | WRITE32(OP_PUTROOTFH); | |
1136 | ||
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1141 | { | |
1da177e4 | 1142 | nfs4_stateid stateid; |
8687b63a | 1143 | __be32 *p; |
1da177e4 | 1144 | |
8ae20abd | 1145 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1146 | if (ctx->state != NULL) { |
1147 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1148 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1149 | } else |
8ae20abd | 1150 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1151 | } |
1152 | ||
1153 | static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) | |
1154 | { | |
8687b63a | 1155 | __be32 *p; |
1da177e4 LT |
1156 | |
1157 | RESERVE_SPACE(4); | |
1158 | WRITE32(OP_READ); | |
1159 | ||
1160 | encode_stateid(xdr, args->context); | |
1161 | ||
1162 | RESERVE_SPACE(12); | |
1163 | WRITE64(args->offset); | |
1164 | WRITE32(args->count); | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) | |
1170 | { | |
1be27f36 | 1171 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
97d312d0 MN |
1172 | uint32_t attrs[2] = { |
1173 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1174 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1175 | }; | |
1da177e4 | 1176 | int replen; |
8687b63a | 1177 | __be32 *p; |
1da177e4 | 1178 | |
8ae20abd | 1179 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1180 | WRITE32(OP_READDIR); |
1181 | WRITE64(readdir->cookie); | |
8ae20abd | 1182 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1183 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1184 | WRITE32(readdir->count); | |
1185 | WRITE32(2); | |
97d312d0 MN |
1186 | /* Switch to mounted_on_fileid if the server supports it */ |
1187 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1188 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1189 | else | |
1190 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1191 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1192 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
eadf4598 TM |
1193 | dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", |
1194 | __FUNCTION__, | |
1195 | (unsigned long long)readdir->cookie, | |
1196 | ((u32 *)readdir->verifier.data)[0], | |
1197 | ((u32 *)readdir->verifier.data)[1], | |
1198 | attrs[0] & readdir->bitmask[0], | |
1199 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1200 | |
1201 | /* set up reply kvec | |
1202 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1203 | * + OP_READDIR + status + verifer(2) = 9 | |
1204 | */ | |
1205 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; | |
1206 | xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, | |
1207 | readdir->pgbase, readdir->count); | |
eadf4598 TM |
1208 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", |
1209 | __FUNCTION__, replen, readdir->pages, | |
1210 | readdir->pgbase, readdir->count); | |
1da177e4 LT |
1211 | |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) | |
1216 | { | |
1be27f36 | 1217 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 | 1218 | unsigned int replen; |
8687b63a | 1219 | __be32 *p; |
1da177e4 LT |
1220 | |
1221 | RESERVE_SPACE(4); | |
1222 | WRITE32(OP_READLINK); | |
1223 | ||
1224 | /* set up reply kvec | |
1225 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1226 | * + OP_READLINK + status + string length = 8 | |
1227 | */ | |
1228 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; | |
1229 | xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, | |
1230 | readlink->pgbase, readlink->pglen); | |
1231 | ||
1232 | return 0; | |
1233 | } | |
1234 | ||
1235 | static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) | |
1236 | { | |
8687b63a | 1237 | __be32 *p; |
1da177e4 LT |
1238 | |
1239 | RESERVE_SPACE(8 + name->len); | |
1240 | WRITE32(OP_REMOVE); | |
1241 | WRITE32(name->len); | |
1242 | WRITEMEM(name->name, name->len); | |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) | |
1248 | { | |
8687b63a | 1249 | __be32 *p; |
1da177e4 LT |
1250 | |
1251 | RESERVE_SPACE(8 + oldname->len); | |
1252 | WRITE32(OP_RENAME); | |
1253 | WRITE32(oldname->len); | |
1254 | WRITEMEM(oldname->name, oldname->len); | |
1255 | ||
1256 | RESERVE_SPACE(4 + newname->len); | |
1257 | WRITE32(newname->len); | |
1258 | WRITEMEM(newname->name, newname->len); | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
adfa6f98 | 1263 | static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) |
1da177e4 | 1264 | { |
8687b63a | 1265 | __be32 *p; |
1da177e4 LT |
1266 | |
1267 | RESERVE_SPACE(12); | |
1268 | WRITE32(OP_RENEW); | |
1269 | WRITE64(client_stateid->cl_clientid); | |
1270 | ||
1271 | return 0; | |
1272 | } | |
1273 | ||
56ae19f3 TM |
1274 | static int |
1275 | encode_restorefh(struct xdr_stream *xdr) | |
1276 | { | |
8687b63a | 1277 | __be32 *p; |
56ae19f3 TM |
1278 | |
1279 | RESERVE_SPACE(4); | |
1280 | WRITE32(OP_RESTOREFH); | |
1281 | ||
1282 | return 0; | |
1283 | } | |
1284 | ||
23ec6965 BF |
1285 | static int |
1286 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) | |
1287 | { | |
8687b63a | 1288 | __be32 *p; |
23ec6965 | 1289 | |
8ae20abd | 1290 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1291 | WRITE32(OP_SETATTR); |
8ae20abd | 1292 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1293 | RESERVE_SPACE(2*4); |
1294 | WRITE32(1); | |
1295 | WRITE32(FATTR4_WORD0_ACL); | |
1296 | if (arg->acl_len % 4) | |
1297 | return -EINVAL; | |
1298 | RESERVE_SPACE(4); | |
1299 | WRITE32(arg->acl_len); | |
1300 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
1301 | return 0; | |
1302 | } | |
1303 | ||
1da177e4 LT |
1304 | static int |
1305 | encode_savefh(struct xdr_stream *xdr) | |
1306 | { | |
8687b63a | 1307 | __be32 *p; |
1da177e4 LT |
1308 | |
1309 | RESERVE_SPACE(4); | |
1310 | WRITE32(OP_SAVEFH); | |
1311 | ||
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) | |
1316 | { | |
1317 | int status; | |
8687b63a | 1318 | __be32 *p; |
1da177e4 | 1319 | |
8ae20abd | 1320 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1321 | WRITE32(OP_SETATTR); |
8ae20abd | 1322 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1323 | |
1324 | if ((status = encode_attrs(xdr, arg->iap, server))) | |
1325 | return status; | |
1326 | ||
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) | |
1331 | { | |
8687b63a | 1332 | __be32 *p; |
1da177e4 | 1333 | |
8ae20abd | 1334 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1335 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1336 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1337 | |
1338 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1339 | RESERVE_SPACE(4); | |
1340 | WRITE32(setclientid->sc_prog); | |
1341 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1342 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1343 | RESERVE_SPACE(4); | |
1344 | WRITE32(setclientid->sc_cb_ident); | |
1345 | ||
1346 | return 0; | |
1347 | } | |
1348 | ||
adfa6f98 | 1349 | static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) |
1da177e4 | 1350 | { |
8687b63a | 1351 | __be32 *p; |
1da177e4 | 1352 | |
8ae20abd | 1353 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1354 | WRITE32(OP_SETCLIENTID_CONFIRM); |
1355 | WRITE64(client_state->cl_clientid); | |
8ae20abd | 1356 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1357 | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) | |
1362 | { | |
8687b63a | 1363 | __be32 *p; |
1da177e4 LT |
1364 | |
1365 | RESERVE_SPACE(4); | |
1366 | WRITE32(OP_WRITE); | |
1367 | ||
1368 | encode_stateid(xdr, args->context); | |
1369 | ||
1370 | RESERVE_SPACE(16); | |
1371 | WRITE64(args->offset); | |
1372 | WRITE32(args->stable); | |
1373 | WRITE32(args->count); | |
1374 | ||
1375 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
1376 | ||
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) | |
1381 | { | |
8687b63a | 1382 | __be32 *p; |
1da177e4 | 1383 | |
8ae20abd | 1384 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1385 | |
1386 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1387 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1388 | return 0; |
1389 | ||
1390 | } | |
1391 | /* | |
1392 | * END OF "GENERIC" ENCODE ROUTINES. | |
1393 | */ | |
1394 | ||
1395 | /* | |
1396 | * Encode an ACCESS request | |
1397 | */ | |
8687b63a | 1398 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1399 | { |
1400 | struct xdr_stream xdr; | |
1401 | struct compound_hdr hdr = { | |
1402 | .nops = 2, | |
1403 | }; | |
1404 | int status; | |
1405 | ||
1406 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1407 | encode_compound_hdr(&xdr, &hdr); | |
1408 | if ((status = encode_putfh(&xdr, args->fh)) == 0) | |
1409 | status = encode_access(&xdr, args->access); | |
1410 | return status; | |
1411 | } | |
1412 | ||
1413 | /* | |
1414 | * Encode LOOKUP request | |
1415 | */ | |
8687b63a | 1416 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1417 | { |
1418 | struct xdr_stream xdr; | |
1419 | struct compound_hdr hdr = { | |
1420 | .nops = 4, | |
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->dir_fh)) != 0) | |
1427 | goto out; | |
1428 | if ((status = encode_lookup(&xdr, args->name)) != 0) | |
1429 | goto out; | |
1430 | if ((status = encode_getfh(&xdr)) != 0) | |
1431 | goto out; | |
1432 | status = encode_getfattr(&xdr, args->bitmask); | |
1433 | out: | |
1434 | return status; | |
1435 | } | |
1436 | ||
1437 | /* | |
1438 | * Encode LOOKUP_ROOT request | |
1439 | */ | |
8687b63a | 1440 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1441 | { |
1442 | struct xdr_stream xdr; | |
1443 | struct compound_hdr hdr = { | |
1444 | .nops = 3, | |
1445 | }; | |
1446 | int status; | |
1447 | ||
1448 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1449 | encode_compound_hdr(&xdr, &hdr); | |
1450 | if ((status = encode_putrootfh(&xdr)) != 0) | |
1451 | goto out; | |
1452 | if ((status = encode_getfh(&xdr)) == 0) | |
1453 | status = encode_getfattr(&xdr, args->bitmask); | |
1454 | out: | |
1455 | return status; | |
1456 | } | |
1457 | ||
1458 | /* | |
1459 | * Encode REMOVE request | |
1460 | */ | |
8687b63a | 1461 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs4_remove_arg *args) |
1da177e4 LT |
1462 | { |
1463 | struct xdr_stream xdr; | |
1464 | struct compound_hdr hdr = { | |
16e42959 | 1465 | .nops = 3, |
1da177e4 LT |
1466 | }; |
1467 | int status; | |
1468 | ||
1469 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1470 | encode_compound_hdr(&xdr, &hdr); | |
16e42959 TM |
1471 | if ((status = encode_putfh(&xdr, args->fh)) != 0) |
1472 | goto out; | |
1473 | if ((status = encode_remove(&xdr, args->name)) != 0) | |
1474 | goto out; | |
1475 | status = encode_getfattr(&xdr, args->bitmask); | |
1476 | out: | |
1da177e4 LT |
1477 | return status; |
1478 | } | |
1479 | ||
1480 | /* | |
1481 | * Encode RENAME request | |
1482 | */ | |
8687b63a | 1483 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1484 | { |
1485 | struct xdr_stream xdr; | |
1486 | struct compound_hdr hdr = { | |
6caf2c82 | 1487 | .nops = 7, |
1da177e4 LT |
1488 | }; |
1489 | int status; | |
1490 | ||
1491 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1492 | encode_compound_hdr(&xdr, &hdr); | |
1493 | if ((status = encode_putfh(&xdr, args->old_dir)) != 0) | |
1494 | goto out; | |
1495 | if ((status = encode_savefh(&xdr)) != 0) | |
1496 | goto out; | |
1497 | if ((status = encode_putfh(&xdr, args->new_dir)) != 0) | |
1498 | goto out; | |
6caf2c82 TM |
1499 | if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) |
1500 | goto out; | |
1501 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) | |
1502 | goto out; | |
1503 | if ((status = encode_restorefh(&xdr)) != 0) | |
1504 | goto out; | |
1505 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1506 | out: |
1507 | return status; | |
1508 | } | |
1509 | ||
1510 | /* | |
1511 | * Encode LINK request | |
1512 | */ | |
8687b63a | 1513 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1514 | { |
1515 | struct xdr_stream xdr; | |
1516 | struct compound_hdr hdr = { | |
91ba2eee | 1517 | .nops = 7, |
1da177e4 LT |
1518 | }; |
1519 | int status; | |
1520 | ||
1521 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1522 | encode_compound_hdr(&xdr, &hdr); | |
1523 | if ((status = encode_putfh(&xdr, args->fh)) != 0) | |
1524 | goto out; | |
1525 | if ((status = encode_savefh(&xdr)) != 0) | |
1526 | goto out; | |
1527 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
1528 | goto out; | |
91ba2eee TM |
1529 | if ((status = encode_link(&xdr, args->name)) != 0) |
1530 | goto out; | |
1531 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) | |
1532 | goto out; | |
1533 | if ((status = encode_restorefh(&xdr)) != 0) | |
1534 | goto out; | |
1535 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1536 | out: |
1537 | return status; | |
1538 | } | |
1539 | ||
1540 | /* | |
1541 | * Encode CREATE request | |
1542 | */ | |
8687b63a | 1543 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1544 | { |
1545 | struct xdr_stream xdr; | |
1546 | struct compound_hdr hdr = { | |
56ae19f3 | 1547 | .nops = 7, |
1da177e4 LT |
1548 | }; |
1549 | int status; | |
1550 | ||
1551 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1552 | encode_compound_hdr(&xdr, &hdr); | |
1553 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
1554 | goto out; | |
56ae19f3 TM |
1555 | if ((status = encode_savefh(&xdr)) != 0) |
1556 | goto out; | |
1da177e4 LT |
1557 | if ((status = encode_create(&xdr, args)) != 0) |
1558 | goto out; | |
1559 | if ((status = encode_getfh(&xdr)) != 0) | |
1560 | goto out; | |
56ae19f3 TM |
1561 | if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) |
1562 | goto out; | |
1563 | if ((status = encode_restorefh(&xdr)) != 0) | |
1564 | goto out; | |
1da177e4 LT |
1565 | status = encode_getfattr(&xdr, args->bitmask); |
1566 | out: | |
1567 | return status; | |
1568 | } | |
1569 | ||
1570 | /* | |
1571 | * Encode SYMLINK request | |
1572 | */ | |
8687b63a | 1573 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1574 | { |
1575 | return nfs4_xdr_enc_create(req, p, args); | |
1576 | } | |
1577 | ||
1578 | /* | |
1579 | * Encode GETATTR request | |
1580 | */ | |
8687b63a | 1581 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1582 | { |
1583 | struct xdr_stream xdr; | |
1584 | struct compound_hdr hdr = { | |
1585 | .nops = 2, | |
1586 | }; | |
1587 | int status; | |
1588 | ||
1589 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1590 | encode_compound_hdr(&xdr, &hdr); | |
1591 | if ((status = encode_putfh(&xdr, args->fh)) == 0) | |
1592 | status = encode_getfattr(&xdr, args->bitmask); | |
1593 | return status; | |
1594 | } | |
1595 | ||
1596 | /* | |
1597 | * Encode a CLOSE request | |
1598 | */ | |
8687b63a | 1599 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1600 | { |
1601 | struct xdr_stream xdr; | |
1602 | struct compound_hdr hdr = { | |
516a6af6 | 1603 | .nops = 3, |
1da177e4 LT |
1604 | }; |
1605 | int status; | |
1606 | ||
1607 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1608 | encode_compound_hdr(&xdr, &hdr); | |
1609 | status = encode_putfh(&xdr, args->fh); | |
1610 | if(status) | |
1611 | goto out; | |
1612 | status = encode_close(&xdr, args); | |
516a6af6 TM |
1613 | if (status != 0) |
1614 | goto out; | |
1615 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1616 | out: |
1617 | return status; | |
1618 | } | |
1619 | ||
1620 | /* | |
1621 | * Encode an OPEN request | |
1622 | */ | |
8687b63a | 1623 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1624 | { |
1625 | struct xdr_stream xdr; | |
1626 | struct compound_hdr hdr = { | |
56ae19f3 | 1627 | .nops = 7, |
1da177e4 LT |
1628 | }; |
1629 | int status; | |
1630 | ||
1631 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1632 | encode_compound_hdr(&xdr, &hdr); | |
1633 | status = encode_putfh(&xdr, args->fh); | |
56ae19f3 TM |
1634 | if (status) |
1635 | goto out; | |
1636 | status = encode_savefh(&xdr); | |
1da177e4 LT |
1637 | if (status) |
1638 | goto out; | |
1639 | status = encode_open(&xdr, args); | |
1640 | if (status) | |
1641 | goto out; | |
1642 | status = encode_getfh(&xdr); | |
1643 | if (status) | |
1644 | goto out; | |
1645 | status = encode_getfattr(&xdr, args->bitmask); | |
56ae19f3 TM |
1646 | if (status) |
1647 | goto out; | |
1648 | status = encode_restorefh(&xdr); | |
1649 | if (status) | |
1650 | goto out; | |
1651 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1652 | out: |
1653 | return status; | |
1654 | } | |
1655 | ||
1656 | /* | |
1657 | * Encode an OPEN_CONFIRM request | |
1658 | */ | |
8687b63a | 1659 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1660 | { |
1661 | struct xdr_stream xdr; | |
1662 | struct compound_hdr hdr = { | |
1663 | .nops = 2, | |
1664 | }; | |
1665 | int status; | |
1666 | ||
1667 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1668 | encode_compound_hdr(&xdr, &hdr); | |
1669 | status = encode_putfh(&xdr, args->fh); | |
1670 | if(status) | |
1671 | goto out; | |
1672 | status = encode_open_confirm(&xdr, args); | |
1673 | out: | |
1674 | return status; | |
1675 | } | |
1676 | ||
1677 | /* | |
1678 | * Encode an OPEN request with no attributes. | |
1679 | */ | |
8687b63a | 1680 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1681 | { |
1682 | struct xdr_stream xdr; | |
1683 | struct compound_hdr hdr = { | |
864472e9 | 1684 | .nops = 3, |
1da177e4 LT |
1685 | }; |
1686 | int status; | |
1687 | ||
1688 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1689 | encode_compound_hdr(&xdr, &hdr); | |
1690 | status = encode_putfh(&xdr, args->fh); | |
1691 | if (status) | |
1692 | goto out; | |
1693 | status = encode_open(&xdr, args); | |
864472e9 TM |
1694 | if (status) |
1695 | goto out; | |
1696 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1697 | out: |
1698 | return status; | |
1699 | } | |
1700 | ||
1701 | /* | |
1702 | * Encode an OPEN_DOWNGRADE request | |
1703 | */ | |
8687b63a | 1704 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1705 | { |
1706 | struct xdr_stream xdr; | |
1707 | struct compound_hdr hdr = { | |
516a6af6 | 1708 | .nops = 3, |
1da177e4 LT |
1709 | }; |
1710 | int status; | |
1711 | ||
1712 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1713 | encode_compound_hdr(&xdr, &hdr); | |
1714 | status = encode_putfh(&xdr, args->fh); | |
1715 | if (status) | |
1716 | goto out; | |
1717 | status = encode_open_downgrade(&xdr, args); | |
516a6af6 TM |
1718 | if (status != 0) |
1719 | goto out; | |
1720 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1721 | out: |
1722 | return status; | |
1723 | } | |
1724 | ||
1725 | /* | |
1726 | * Encode a LOCK request | |
1727 | */ | |
8687b63a | 1728 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1729 | { |
1730 | struct xdr_stream xdr; | |
1731 | struct compound_hdr hdr = { | |
1732 | .nops = 2, | |
1733 | }; | |
1734 | int status; | |
1735 | ||
1736 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1737 | encode_compound_hdr(&xdr, &hdr); | |
1738 | status = encode_putfh(&xdr, args->fh); | |
1739 | if(status) | |
1740 | goto out; | |
1741 | status = encode_lock(&xdr, args); | |
1742 | out: | |
1743 | return status; | |
1744 | } | |
1745 | ||
1746 | /* | |
1747 | * Encode a LOCKT request | |
1748 | */ | |
8687b63a | 1749 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1750 | { |
1751 | struct xdr_stream xdr; | |
1752 | struct compound_hdr hdr = { | |
1753 | .nops = 2, | |
1754 | }; | |
1755 | int status; | |
1756 | ||
1757 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1758 | encode_compound_hdr(&xdr, &hdr); | |
1759 | status = encode_putfh(&xdr, args->fh); | |
1760 | if(status) | |
1761 | goto out; | |
1762 | status = encode_lockt(&xdr, args); | |
1763 | out: | |
1764 | return status; | |
1765 | } | |
1766 | ||
1767 | /* | |
1768 | * Encode a LOCKU request | |
1769 | */ | |
8687b63a | 1770 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1771 | { |
1772 | struct xdr_stream xdr; | |
1773 | struct compound_hdr hdr = { | |
1774 | .nops = 2, | |
1775 | }; | |
1776 | int status; | |
1777 | ||
1778 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1779 | encode_compound_hdr(&xdr, &hdr); | |
1780 | status = encode_putfh(&xdr, args->fh); | |
1781 | if(status) | |
1782 | goto out; | |
1783 | status = encode_locku(&xdr, args); | |
1784 | out: | |
1785 | return status; | |
1786 | } | |
1787 | ||
1788 | /* | |
1789 | * Encode a READLINK request | |
1790 | */ | |
8687b63a | 1791 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1792 | { |
1793 | struct xdr_stream xdr; | |
1794 | struct compound_hdr hdr = { | |
1795 | .nops = 2, | |
1796 | }; | |
1797 | int status; | |
1798 | ||
1799 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1800 | encode_compound_hdr(&xdr, &hdr); | |
1801 | status = encode_putfh(&xdr, args->fh); | |
1802 | if(status) | |
1803 | goto out; | |
1804 | status = encode_readlink(&xdr, args, req); | |
1805 | out: | |
1806 | return status; | |
1807 | } | |
1808 | ||
1809 | /* | |
1810 | * Encode a READDIR request | |
1811 | */ | |
8687b63a | 1812 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1813 | { |
1814 | struct xdr_stream xdr; | |
1815 | struct compound_hdr hdr = { | |
1816 | .nops = 2, | |
1817 | }; | |
1818 | int status; | |
1819 | ||
1820 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1821 | encode_compound_hdr(&xdr, &hdr); | |
1822 | status = encode_putfh(&xdr, args->fh); | |
1823 | if(status) | |
1824 | goto out; | |
1825 | status = encode_readdir(&xdr, args, req); | |
1826 | out: | |
1827 | return status; | |
1828 | } | |
1829 | ||
1830 | /* | |
1831 | * Encode a READ request | |
1832 | */ | |
8687b63a | 1833 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1834 | { |
1be27f36 | 1835 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 LT |
1836 | struct xdr_stream xdr; |
1837 | struct compound_hdr hdr = { | |
1838 | .nops = 2, | |
1839 | }; | |
1840 | int replen, status; | |
1841 | ||
1842 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1843 | encode_compound_hdr(&xdr, &hdr); | |
1844 | status = encode_putfh(&xdr, args->fh); | |
1845 | if (status) | |
1846 | goto out; | |
1847 | status = encode_read(&xdr, args); | |
1848 | if (status) | |
1849 | goto out; | |
1850 | ||
1851 | /* set up reply kvec | |
1852 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status | |
1853 | * + OP_READ + status + eof + datalen = 9 | |
1854 | */ | |
1855 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; | |
1856 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1857 | args->pages, args->pgbase, args->count); | |
1858 | out: | |
1859 | return status; | |
1860 | } | |
1861 | ||
1862 | /* | |
1863 | * Encode an SETATTR request | |
1864 | */ | |
8687b63a | 1865 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 LT |
1866 | |
1867 | { | |
1868 | struct xdr_stream xdr; | |
1869 | struct compound_hdr hdr = { | |
1870 | .nops = 3, | |
1871 | }; | |
1872 | int status; | |
1873 | ||
1874 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1875 | encode_compound_hdr(&xdr, &hdr); | |
1876 | status = encode_putfh(&xdr, args->fh); | |
1877 | if(status) | |
1878 | goto out; | |
1879 | status = encode_setattr(&xdr, args, args->server); | |
1880 | if(status) | |
1881 | goto out; | |
1882 | status = encode_getfattr(&xdr, args->bitmask); | |
1883 | out: | |
1884 | return status; | |
1885 | } | |
1886 | ||
029d105e BF |
1887 | /* |
1888 | * Encode a GETACL request | |
1889 | */ | |
1890 | static int | |
8687b63a | 1891 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1892 | struct nfs_getaclargs *args) |
1893 | { | |
1894 | struct xdr_stream xdr; | |
1be27f36 | 1895 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
029d105e BF |
1896 | struct compound_hdr hdr = { |
1897 | .nops = 2, | |
1898 | }; | |
1899 | int replen, status; | |
1900 | ||
1901 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1902 | encode_compound_hdr(&xdr, &hdr); | |
1903 | status = encode_putfh(&xdr, args->fh); | |
1904 | if (status) | |
1905 | goto out; | |
1906 | status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); | |
1907 | /* set up reply buffer: */ | |
1908 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; | |
1909 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1910 | args->acl_pages, args->acl_pgbase, args->acl_len); | |
1911 | out: | |
1912 | return status; | |
1913 | } | |
1914 | ||
1da177e4 LT |
1915 | /* |
1916 | * Encode a WRITE request | |
1917 | */ | |
8687b63a | 1918 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1919 | { |
1920 | struct xdr_stream xdr; | |
1921 | struct compound_hdr hdr = { | |
4f9838c7 | 1922 | .nops = 3, |
1da177e4 LT |
1923 | }; |
1924 | int status; | |
1925 | ||
1926 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1927 | encode_compound_hdr(&xdr, &hdr); | |
1928 | status = encode_putfh(&xdr, args->fh); | |
1929 | if (status) | |
1930 | goto out; | |
1931 | status = encode_write(&xdr, args); | |
4f9838c7 TM |
1932 | if (status) |
1933 | goto out; | |
1934 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1935 | out: |
1936 | return status; | |
1937 | } | |
1938 | ||
1939 | /* | |
1940 | * a COMMIT request | |
1941 | */ | |
8687b63a | 1942 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1943 | { |
1944 | struct xdr_stream xdr; | |
1945 | struct compound_hdr hdr = { | |
4f9838c7 | 1946 | .nops = 3, |
1da177e4 LT |
1947 | }; |
1948 | int status; | |
1949 | ||
1950 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1951 | encode_compound_hdr(&xdr, &hdr); | |
1952 | status = encode_putfh(&xdr, args->fh); | |
1953 | if (status) | |
1954 | goto out; | |
1955 | status = encode_commit(&xdr, args); | |
4f9838c7 TM |
1956 | if (status) |
1957 | goto out; | |
1958 | status = encode_getfattr(&xdr, args->bitmask); | |
1da177e4 LT |
1959 | out: |
1960 | return status; | |
1961 | } | |
1962 | ||
1963 | /* | |
1964 | * FSINFO request | |
1965 | */ | |
8687b63a | 1966 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
1967 | { |
1968 | struct xdr_stream xdr; | |
1969 | struct compound_hdr hdr = { | |
1970 | .nops = 2, | |
1971 | }; | |
1972 | int status; | |
1973 | ||
1974 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1975 | encode_compound_hdr(&xdr, &hdr); | |
1976 | status = encode_putfh(&xdr, args->fh); | |
1977 | if (!status) | |
1978 | status = encode_fsinfo(&xdr, args->bitmask); | |
1979 | return status; | |
1980 | } | |
1981 | ||
1982 | /* | |
1983 | * a PATHCONF request | |
1984 | */ | |
8687b63a | 1985 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 1986 | { |
1da177e4 LT |
1987 | struct xdr_stream xdr; |
1988 | struct compound_hdr hdr = { | |
1989 | .nops = 2, | |
1990 | }; | |
1991 | int status; | |
1992 | ||
1993 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1994 | encode_compound_hdr(&xdr, &hdr); | |
1995 | status = encode_putfh(&xdr, args->fh); | |
1996 | if (!status) | |
1997 | status = encode_getattr_one(&xdr, | |
1998 | args->bitmask[0] & nfs4_pathconf_bitmap[0]); | |
1999 | return status; | |
2000 | } | |
2001 | ||
2002 | /* | |
2003 | * a STATFS request | |
2004 | */ | |
8687b63a | 2005 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2006 | { |
1da177e4 LT |
2007 | struct xdr_stream xdr; |
2008 | struct compound_hdr hdr = { | |
2009 | .nops = 2, | |
2010 | }; | |
2011 | int status; | |
2012 | ||
2013 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2014 | encode_compound_hdr(&xdr, &hdr); | |
2015 | status = encode_putfh(&xdr, args->fh); | |
2016 | if (status == 0) | |
2017 | status = encode_getattr_two(&xdr, | |
2018 | args->bitmask[0] & nfs4_statfs_bitmap[0], | |
2019 | args->bitmask[1] & nfs4_statfs_bitmap[1]); | |
2020 | return status; | |
2021 | } | |
2022 | ||
2023 | /* | |
2024 | * GETATTR_BITMAP request | |
2025 | */ | |
8687b63a | 2026 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) |
1da177e4 LT |
2027 | { |
2028 | struct xdr_stream xdr; | |
2029 | struct compound_hdr hdr = { | |
2030 | .nops = 2, | |
2031 | }; | |
2032 | int status; | |
2033 | ||
2034 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2035 | encode_compound_hdr(&xdr, &hdr); | |
2036 | status = encode_putfh(&xdr, fhandle); | |
2037 | if (status == 0) | |
2038 | status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| | |
2039 | FATTR4_WORD0_LINK_SUPPORT| | |
2040 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
2041 | FATTR4_WORD0_ACLSUPPORT); | |
2042 | return status; | |
2043 | } | |
2044 | ||
2045 | /* | |
2046 | * a RENEW request | |
2047 | */ | |
8687b63a | 2048 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2049 | { |
2050 | struct xdr_stream xdr; | |
2051 | struct compound_hdr hdr = { | |
2052 | .nops = 1, | |
2053 | }; | |
2054 | ||
2055 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2056 | encode_compound_hdr(&xdr, &hdr); | |
2057 | return encode_renew(&xdr, clp); | |
2058 | } | |
2059 | ||
2060 | /* | |
2061 | * a SETCLIENTID request | |
2062 | */ | |
8687b63a | 2063 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2064 | { |
2065 | struct xdr_stream xdr; | |
2066 | struct compound_hdr hdr = { | |
2067 | .nops = 1, | |
2068 | }; | |
2069 | ||
2070 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2071 | encode_compound_hdr(&xdr, &hdr); | |
2072 | return encode_setclientid(&xdr, sc); | |
2073 | } | |
2074 | ||
2075 | /* | |
2076 | * a SETCLIENTID_CONFIRM request | |
2077 | */ | |
8687b63a | 2078 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2079 | { |
2080 | struct xdr_stream xdr; | |
2081 | struct compound_hdr hdr = { | |
2082 | .nops = 3, | |
2083 | }; | |
2084 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2085 | int status; | |
2086 | ||
2087 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2088 | encode_compound_hdr(&xdr, &hdr); | |
2089 | status = encode_setclientid_confirm(&xdr, clp); | |
2090 | if (!status) | |
2091 | status = encode_putrootfh(&xdr); | |
2092 | if (!status) | |
2093 | status = encode_fsinfo(&xdr, lease_bitmap); | |
2094 | return status; | |
2095 | } | |
2096 | ||
2097 | /* | |
2098 | * DELEGRETURN request | |
2099 | */ | |
8687b63a | 2100 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2101 | { |
2102 | struct xdr_stream xdr; | |
2103 | struct compound_hdr hdr = { | |
fa178f29 | 2104 | .nops = 3, |
1da177e4 LT |
2105 | }; |
2106 | int status; | |
2107 | ||
2108 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2109 | encode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
2110 | status = encode_putfh(&xdr, args->fhandle); |
2111 | if (status != 0) | |
2112 | goto out; | |
2113 | status = encode_delegreturn(&xdr, args->stateid); | |
2114 | if (status != 0) | |
2115 | goto out; | |
2116 | status = encode_getfattr(&xdr, args->bitmask); | |
2117 | out: | |
1da177e4 LT |
2118 | return status; |
2119 | } | |
2120 | ||
683b57b4 TM |
2121 | /* |
2122 | * Encode FS_LOCATIONS request | |
2123 | */ | |
8687b63a | 2124 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2125 | { |
2126 | struct xdr_stream xdr; | |
2127 | struct compound_hdr hdr = { | |
2128 | .nops = 3, | |
2129 | }; | |
1be27f36 | 2130 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
683b57b4 TM |
2131 | int replen; |
2132 | int status; | |
2133 | ||
2134 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2135 | encode_compound_hdr(&xdr, &hdr); | |
2136 | if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) | |
2137 | goto out; | |
2138 | if ((status = encode_lookup(&xdr, args->name)) != 0) | |
2139 | goto out; | |
830b8e33 | 2140 | if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) |
683b57b4 TM |
2141 | goto out; |
2142 | /* set up reply | |
830b8e33 | 2143 | * toplevel_status + OP_PUTFH + status |
683b57b4 TM |
2144 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
2145 | */ | |
2146 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; | |
2147 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, | |
2148 | 0, PAGE_SIZE); | |
2149 | out: | |
2150 | return status; | |
2151 | } | |
2152 | ||
1da177e4 LT |
2153 | /* |
2154 | * START OF "GENERIC" DECODE ROUTINES. | |
2155 | * These may look a little ugly since they are imported from a "generic" | |
2156 | * set of XDR encode/decode routines which are intended to be shared by | |
2157 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2158 | * | |
2159 | * If the pain of reading these is too great, it should be a straightforward | |
2160 | * task to translate them into Linux-specific versions which are more | |
2161 | * consistent with the style used in NFSv2/v3... | |
2162 | */ | |
2163 | #define READ32(x) (x) = ntohl(*p++) | |
2164 | #define READ64(x) do { \ | |
2165 | (x) = (u64)ntohl(*p++) << 32; \ | |
2166 | (x) |= ntohl(*p++); \ | |
2167 | } while (0) | |
2168 | #define READTIME(x) do { \ | |
2169 | p++; \ | |
2170 | (x.tv_sec) = ntohl(*p++); \ | |
2171 | (x.tv_nsec) = ntohl(*p++); \ | |
2172 | } while (0) | |
2173 | #define COPYMEM(x,nbytes) do { \ | |
2174 | memcpy((x), p, nbytes); \ | |
2175 | p += XDR_QUADLEN(nbytes); \ | |
2176 | } while (0) | |
2177 | ||
2178 | #define READ_BUF(nbytes) do { \ | |
2179 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 CL |
2180 | if (unlikely(!p)) { \ |
2181 | printk(KERN_INFO "%s: prematurely hit end of receive" \ | |
2182 | " buffer\n", __FUNCTION__); \ | |
2183 | printk(KERN_INFO "%s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ | |
2184 | __FUNCTION__, xdr->p, nbytes, xdr->end); \ | |
1da177e4 LT |
2185 | return -EIO; \ |
2186 | } \ | |
2187 | } while (0) | |
2188 | ||
683b57b4 | 2189 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2190 | { |
8687b63a | 2191 | __be32 *p; |
1da177e4 LT |
2192 | |
2193 | READ_BUF(4); | |
2194 | READ32(*len); | |
2195 | READ_BUF(*len); | |
2196 | *string = (char *)p; | |
2197 | return 0; | |
2198 | } | |
2199 | ||
2200 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2201 | { | |
8687b63a | 2202 | __be32 *p; |
1da177e4 LT |
2203 | |
2204 | READ_BUF(8); | |
2205 | READ32(hdr->status); | |
2206 | READ32(hdr->taglen); | |
2207 | ||
2208 | READ_BUF(hdr->taglen + 4); | |
2209 | hdr->tag = (char *)p; | |
2210 | p += XDR_QUADLEN(hdr->taglen); | |
2211 | READ32(hdr->nops); | |
2212 | return 0; | |
2213 | } | |
2214 | ||
2215 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2216 | { | |
8687b63a | 2217 | __be32 *p; |
1da177e4 LT |
2218 | uint32_t opnum; |
2219 | int32_t nfserr; | |
2220 | ||
2221 | READ_BUF(8); | |
2222 | READ32(opnum); | |
2223 | if (opnum != expected) { | |
2224 | printk(KERN_NOTICE | |
2225 | "nfs4_decode_op_hdr: Server returned operation" | |
2226 | " %d but we issued a request for %d\n", | |
2227 | opnum, expected); | |
2228 | return -EIO; | |
2229 | } | |
2230 | READ32(nfserr); | |
2231 | if (nfserr != NFS_OK) | |
0a8ea437 | 2232 | return -nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2233 | return 0; |
2234 | } | |
2235 | ||
2236 | /* Dummy routine */ | |
adfa6f98 | 2237 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2238 | { |
8687b63a | 2239 | __be32 *p; |
683b57b4 | 2240 | unsigned int strlen; |
1da177e4 LT |
2241 | char *str; |
2242 | ||
2243 | READ_BUF(12); | |
2244 | return decode_opaque_inline(xdr, &strlen, &str); | |
2245 | } | |
2246 | ||
2247 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2248 | { | |
8687b63a AV |
2249 | uint32_t bmlen; |
2250 | __be32 *p; | |
1da177e4 LT |
2251 | |
2252 | READ_BUF(4); | |
2253 | READ32(bmlen); | |
2254 | ||
2255 | bitmap[0] = bitmap[1] = 0; | |
2256 | READ_BUF((bmlen << 2)); | |
2257 | if (bmlen > 0) { | |
2258 | READ32(bitmap[0]); | |
2259 | if (bmlen > 1) | |
2260 | READ32(bitmap[1]); | |
2261 | } | |
2262 | return 0; | |
2263 | } | |
2264 | ||
8687b63a | 2265 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2266 | { |
8687b63a | 2267 | __be32 *p; |
1da177e4 LT |
2268 | |
2269 | READ_BUF(4); | |
2270 | READ32(*attrlen); | |
2271 | *savep = xdr->p; | |
2272 | return 0; | |
2273 | } | |
2274 | ||
2275 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2276 | { | |
2277 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2278 | decode_attr_bitmap(xdr, bitmask); | |
2279 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2280 | } else | |
2281 | bitmask[0] = bitmask[1] = 0; | |
2282 | dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); | |
2283 | return 0; | |
2284 | } | |
2285 | ||
2286 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2287 | { | |
8687b63a | 2288 | __be32 *p; |
1da177e4 LT |
2289 | |
2290 | *type = 0; | |
2291 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2292 | return -EIO; | |
2293 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2294 | READ_BUF(4); | |
2295 | READ32(*type); | |
2296 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
2297 | dprintk("%s: bad type %d\n", __FUNCTION__, *type); | |
2298 | return -EIO; | |
2299 | } | |
2300 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
2301 | } | |
2302 | dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); | |
2303 | return 0; | |
2304 | } | |
2305 | ||
2306 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2307 | { | |
8687b63a | 2308 | __be32 *p; |
1da177e4 LT |
2309 | |
2310 | *change = 0; | |
2311 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2312 | return -EIO; | |
2313 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2314 | READ_BUF(8); | |
2315 | READ64(*change); | |
2316 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
2317 | } | |
2318 | dprintk("%s: change attribute=%Lu\n", __FUNCTION__, | |
2319 | (unsigned long long)*change); | |
2320 | return 0; | |
2321 | } | |
2322 | ||
2323 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2324 | { | |
8687b63a | 2325 | __be32 *p; |
1da177e4 LT |
2326 | |
2327 | *size = 0; | |
2328 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2329 | return -EIO; | |
2330 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2331 | READ_BUF(8); | |
2332 | READ64(*size); | |
2333 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
2334 | } | |
2335 | dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); | |
2336 | return 0; | |
2337 | } | |
2338 | ||
2339 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2340 | { | |
8687b63a | 2341 | __be32 *p; |
1da177e4 LT |
2342 | |
2343 | *res = 0; | |
2344 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2345 | return -EIO; | |
2346 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2347 | READ_BUF(4); | |
2348 | READ32(*res); | |
2349 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2350 | } | |
2351 | dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); | |
2352 | return 0; | |
2353 | } | |
2354 | ||
2355 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2356 | { | |
8687b63a | 2357 | __be32 *p; |
1da177e4 LT |
2358 | |
2359 | *res = 0; | |
2360 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2361 | return -EIO; | |
2362 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2363 | READ_BUF(4); | |
2364 | READ32(*res); | |
2365 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2366 | } | |
2367 | dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); | |
2368 | return 0; | |
2369 | } | |
2370 | ||
8b4bdcf8 | 2371 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2372 | { |
8687b63a | 2373 | __be32 *p; |
1da177e4 LT |
2374 | |
2375 | fsid->major = 0; | |
2376 | fsid->minor = 0; | |
2377 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2378 | return -EIO; | |
2379 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2380 | READ_BUF(16); | |
2381 | READ64(fsid->major); | |
2382 | READ64(fsid->minor); | |
2383 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
2384 | } | |
2385 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, | |
2386 | (unsigned long long)fsid->major, | |
2387 | (unsigned long long)fsid->minor); | |
2388 | return 0; | |
2389 | } | |
2390 | ||
2391 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2392 | { | |
8687b63a | 2393 | __be32 *p; |
1da177e4 LT |
2394 | |
2395 | *res = 60; | |
2396 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2397 | return -EIO; | |
2398 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2399 | READ_BUF(4); | |
2400 | READ32(*res); | |
2401 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2402 | } | |
2403 | dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); | |
2404 | return 0; | |
2405 | } | |
2406 | ||
2407 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2408 | { | |
8687b63a | 2409 | __be32 *p; |
1da177e4 LT |
2410 | |
2411 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2412 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2413 | return -EIO; | |
2414 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2415 | READ_BUF(4); | |
2416 | READ32(*res); | |
2417 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2418 | } | |
2419 | dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); | |
2420 | return 0; | |
2421 | } | |
2422 | ||
2423 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2424 | { | |
8687b63a | 2425 | __be32 *p; |
1da177e4 LT |
2426 | |
2427 | *fileid = 0; | |
2428 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2429 | return -EIO; | |
2430 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2431 | READ_BUF(8); | |
2432 | READ64(*fileid); | |
2433 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
2434 | } | |
2435 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); | |
2436 | return 0; | |
2437 | } | |
2438 | ||
99baf625 MN |
2439 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2440 | { | |
8687b63a | 2441 | __be32 *p; |
99baf625 MN |
2442 | |
2443 | *fileid = 0; | |
2444 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2445 | return -EIO; | |
2446 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2447 | READ_BUF(8); | |
2448 | READ64(*fileid); | |
2449 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
2450 | } | |
2451 | dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); | |
2452 | return 0; | |
2453 | } | |
2454 | ||
1da177e4 LT |
2455 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2456 | { | |
8687b63a | 2457 | __be32 *p; |
1da177e4 LT |
2458 | int status = 0; |
2459 | ||
2460 | *res = 0; | |
2461 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2462 | return -EIO; | |
2463 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2464 | READ_BUF(8); | |
2465 | READ64(*res); | |
2466 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2467 | } | |
2468 | dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2469 | return status; | |
2470 | } | |
2471 | ||
2472 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2473 | { | |
8687b63a | 2474 | __be32 *p; |
1da177e4 LT |
2475 | int status = 0; |
2476 | ||
2477 | *res = 0; | |
2478 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2479 | return -EIO; | |
2480 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2481 | READ_BUF(8); | |
2482 | READ64(*res); | |
2483 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2484 | } | |
2485 | dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2486 | return status; | |
2487 | } | |
2488 | ||
2489 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2490 | { | |
8687b63a | 2491 | __be32 *p; |
1da177e4 LT |
2492 | int status = 0; |
2493 | ||
2494 | *res = 0; | |
2495 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2496 | return -EIO; | |
2497 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2498 | READ_BUF(8); | |
2499 | READ64(*res); | |
2500 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2501 | } | |
2502 | dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2503 | return status; | |
2504 | } | |
2505 | ||
7aaa0b3b MN |
2506 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2507 | { | |
2508 | int n; | |
8687b63a | 2509 | __be32 *p; |
7aaa0b3b MN |
2510 | int status = 0; |
2511 | ||
2512 | READ_BUF(4); | |
2513 | READ32(n); | |
33a43f28 | 2514 | if (n < 0) |
7aaa0b3b | 2515 | goto out_eio; |
33a43f28 AA |
2516 | if (n == 0) |
2517 | goto root_path; | |
7aaa0b3b MN |
2518 | dprintk("path "); |
2519 | path->ncomponents = 0; | |
2520 | while (path->ncomponents < n) { | |
2521 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2522 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2523 | if (unlikely(status != 0)) | |
2524 | goto out_eio; | |
2525 | if (path->ncomponents != n) | |
2526 | dprintk("/"); | |
2527 | dprintk("%s", component->data); | |
2528 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2529 | path->ncomponents++; | |
2530 | else { | |
2531 | dprintk("cannot parse %d components in path\n", n); | |
2532 | goto out_eio; | |
2533 | } | |
2534 | } | |
2535 | out: | |
2536 | dprintk("\n"); | |
2537 | return status; | |
33a43f28 AA |
2538 | root_path: |
2539 | /* a root pathname is sent as a zero component4 */ | |
2540 | path->ncomponents = 1; | |
2541 | path->components[0].len=0; | |
2542 | path->components[0].data=NULL; | |
2543 | dprintk("path /\n"); | |
2544 | goto out; | |
7aaa0b3b MN |
2545 | out_eio: |
2546 | dprintk(" status %d", status); | |
2547 | status = -EIO; | |
2548 | goto out; | |
2549 | } | |
2550 | ||
2551 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2552 | { |
2553 | int n; | |
8687b63a | 2554 | __be32 *p; |
683b57b4 TM |
2555 | int status = -EIO; |
2556 | ||
2557 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2558 | goto out; | |
2559 | status = 0; | |
2560 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2561 | goto out; | |
7aaa0b3b MN |
2562 | dprintk("%s: fsroot ", __FUNCTION__); |
2563 | status = decode_pathname(xdr, &res->fs_path); | |
683b57b4 TM |
2564 | if (unlikely(status != 0)) |
2565 | goto out; | |
2566 | READ_BUF(4); | |
2567 | READ32(n); | |
2568 | if (n <= 0) | |
2569 | goto out_eio; | |
2570 | res->nlocations = 0; | |
2571 | while (res->nlocations < n) { | |
7aaa0b3b MN |
2572 | int m; |
2573 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; | |
683b57b4 | 2574 | |
7aaa0b3b MN |
2575 | READ_BUF(4); |
2576 | READ32(m); | |
2577 | if (m <= 0) | |
683b57b4 | 2578 | goto out_eio; |
7aaa0b3b MN |
2579 | |
2580 | loc->nservers = 0; | |
2581 | dprintk("%s: servers ", __FUNCTION__); | |
2582 | while (loc->nservers < m) { | |
2583 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2584 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2585 | if (unlikely(status != 0)) | |
2586 | goto out_eio; | |
2587 | dprintk("%s ", server->data); | |
2588 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2589 | loc->nservers++; | |
2590 | else { | |
2591 | int i; | |
2592 | dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); | |
2593 | for (i = loc->nservers; i < m; i++) { | |
2e42c3e2 | 2594 | unsigned int len; |
7aaa0b3b MN |
2595 | char *data; |
2596 | status = decode_opaque_inline(xdr, &len, &data); | |
2597 | if (unlikely(status != 0)) | |
2598 | goto out_eio; | |
2599 | } | |
2600 | } | |
2601 | } | |
2602 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2603 | if (unlikely(status != 0)) |
2604 | goto out_eio; | |
7aaa0b3b | 2605 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2606 | res->nlocations++; |
2607 | } | |
2608 | out: | |
2609 | dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); | |
2610 | return status; | |
2611 | out_eio: | |
2612 | status = -EIO; | |
2613 | goto out; | |
2614 | } | |
2615 | ||
1da177e4 LT |
2616 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2617 | { | |
8687b63a | 2618 | __be32 *p; |
1da177e4 LT |
2619 | int status = 0; |
2620 | ||
2621 | *res = 0; | |
2622 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2623 | return -EIO; | |
2624 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2625 | READ_BUF(8); | |
2626 | READ64(*res); | |
2627 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2628 | } | |
2629 | dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2630 | return status; | |
2631 | } | |
2632 | ||
2633 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2634 | { | |
8687b63a | 2635 | __be32 *p; |
1da177e4 LT |
2636 | int status = 0; |
2637 | ||
2638 | *maxlink = 1; | |
2639 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2640 | return -EIO; | |
2641 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2642 | READ_BUF(4); | |
2643 | READ32(*maxlink); | |
2644 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2645 | } | |
2646 | dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); | |
2647 | return status; | |
2648 | } | |
2649 | ||
2650 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2651 | { | |
8687b63a | 2652 | __be32 *p; |
1da177e4 LT |
2653 | int status = 0; |
2654 | ||
2655 | *maxname = 1024; | |
2656 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2657 | return -EIO; | |
2658 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2659 | READ_BUF(4); | |
2660 | READ32(*maxname); | |
2661 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2662 | } | |
2663 | dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); | |
2664 | return status; | |
2665 | } | |
2666 | ||
2667 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2668 | { | |
8687b63a | 2669 | __be32 *p; |
1da177e4 LT |
2670 | int status = 0; |
2671 | ||
2672 | *res = 1024; | |
2673 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2674 | return -EIO; | |
2675 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2676 | uint64_t maxread; | |
2677 | READ_BUF(8); | |
2678 | READ64(maxread); | |
2679 | if (maxread > 0x7FFFFFFF) | |
2680 | maxread = 0x7FFFFFFF; | |
2681 | *res = (uint32_t)maxread; | |
2682 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2683 | } | |
2684 | dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); | |
2685 | return status; | |
2686 | } | |
2687 | ||
2688 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2689 | { | |
8687b63a | 2690 | __be32 *p; |
1da177e4 LT |
2691 | int status = 0; |
2692 | ||
2693 | *res = 1024; | |
2694 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2695 | return -EIO; | |
2696 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2697 | uint64_t maxwrite; | |
2698 | READ_BUF(8); | |
2699 | READ64(maxwrite); | |
2700 | if (maxwrite > 0x7FFFFFFF) | |
2701 | maxwrite = 0x7FFFFFFF; | |
2702 | *res = (uint32_t)maxwrite; | |
2703 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2704 | } | |
2705 | dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); | |
2706 | return status; | |
2707 | } | |
2708 | ||
2709 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) | |
2710 | { | |
8687b63a | 2711 | __be32 *p; |
1da177e4 LT |
2712 | |
2713 | *mode = 0; | |
2714 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2715 | return -EIO; | |
2716 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2717 | READ_BUF(4); | |
2718 | READ32(*mode); | |
2719 | *mode &= ~S_IFMT; | |
2720 | bitmap[1] &= ~FATTR4_WORD1_MODE; | |
2721 | } | |
2722 | dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); | |
2723 | return 0; | |
2724 | } | |
2725 | ||
2726 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2727 | { | |
8687b63a | 2728 | __be32 *p; |
1da177e4 LT |
2729 | |
2730 | *nlink = 1; | |
2731 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2732 | return -EIO; | |
2733 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2734 | READ_BUF(4); | |
2735 | READ32(*nlink); | |
2736 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
2737 | } | |
2738 | dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); | |
2739 | return 0; | |
2740 | } | |
2741 | ||
2e42c3e2 | 2742 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2743 | { |
8687b63a AV |
2744 | uint32_t len; |
2745 | __be32 *p; | |
1da177e4 LT |
2746 | |
2747 | *uid = -2; | |
2748 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2749 | return -EIO; | |
2750 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2751 | READ_BUF(4); | |
2752 | READ32(len); | |
2753 | READ_BUF(len); | |
2754 | if (len < XDR_MAX_NETOBJ) { | |
2755 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) | |
2756 | dprintk("%s: nfs_map_name_to_uid failed!\n", | |
2757 | __FUNCTION__); | |
2758 | } else | |
2759 | printk(KERN_WARNING "%s: name too long (%u)!\n", | |
2760 | __FUNCTION__, len); | |
2761 | bitmap[1] &= ~FATTR4_WORD1_OWNER; | |
2762 | } | |
2763 | dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); | |
2764 | return 0; | |
2765 | } | |
2766 | ||
2e42c3e2 | 2767 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2768 | { |
8687b63a AV |
2769 | uint32_t len; |
2770 | __be32 *p; | |
1da177e4 LT |
2771 | |
2772 | *gid = -2; | |
2773 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2774 | return -EIO; | |
2775 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2776 | READ_BUF(4); | |
2777 | READ32(len); | |
2778 | READ_BUF(len); | |
2779 | if (len < XDR_MAX_NETOBJ) { | |
2780 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) | |
2781 | dprintk("%s: nfs_map_group_to_gid failed!\n", | |
2782 | __FUNCTION__); | |
2783 | } else | |
2784 | printk(KERN_WARNING "%s: name too long (%u)!\n", | |
2785 | __FUNCTION__, len); | |
2786 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; | |
2787 | } | |
2788 | dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); | |
2789 | return 0; | |
2790 | } | |
2791 | ||
2792 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2793 | { | |
8687b63a AV |
2794 | uint32_t major = 0, minor = 0; |
2795 | __be32 *p; | |
1da177e4 LT |
2796 | |
2797 | *rdev = MKDEV(0,0); | |
2798 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2799 | return -EIO; | |
2800 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2801 | dev_t tmp; | |
2802 | ||
2803 | READ_BUF(8); | |
2804 | READ32(major); | |
2805 | READ32(minor); | |
2806 | tmp = MKDEV(major, minor); | |
2807 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2808 | *rdev = tmp; | |
2809 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
2810 | } | |
2811 | dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); | |
2812 | return 0; | |
2813 | } | |
2814 | ||
2815 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2816 | { | |
8687b63a | 2817 | __be32 *p; |
1da177e4 LT |
2818 | int status = 0; |
2819 | ||
2820 | *res = 0; | |
2821 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2822 | return -EIO; | |
2823 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2824 | READ_BUF(8); | |
2825 | READ64(*res); | |
2826 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2827 | } | |
2828 | dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2829 | return status; | |
2830 | } | |
2831 | ||
2832 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2833 | { | |
8687b63a | 2834 | __be32 *p; |
1da177e4 LT |
2835 | int status = 0; |
2836 | ||
2837 | *res = 0; | |
2838 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2839 | return -EIO; | |
2840 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2841 | READ_BUF(8); | |
2842 | READ64(*res); | |
2843 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2844 | } | |
2845 | dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2846 | return status; | |
2847 | } | |
2848 | ||
2849 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2850 | { | |
8687b63a | 2851 | __be32 *p; |
1da177e4 LT |
2852 | int status = 0; |
2853 | ||
2854 | *res = 0; | |
2855 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2856 | return -EIO; | |
2857 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2858 | READ_BUF(8); | |
2859 | READ64(*res); | |
2860 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2861 | } | |
2862 | dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); | |
2863 | return status; | |
2864 | } | |
2865 | ||
2866 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2867 | { | |
8687b63a | 2868 | __be32 *p; |
1da177e4 LT |
2869 | |
2870 | *used = 0; | |
2871 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2872 | return -EIO; | |
2873 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2874 | READ_BUF(8); | |
2875 | READ64(*used); | |
2876 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
2877 | } | |
2878 | dprintk("%s: space used=%Lu\n", __FUNCTION__, | |
2879 | (unsigned long long)*used); | |
2880 | return 0; | |
2881 | } | |
2882 | ||
2883 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2884 | { | |
8687b63a | 2885 | __be32 *p; |
1da177e4 LT |
2886 | uint64_t sec; |
2887 | uint32_t nsec; | |
2888 | ||
2889 | READ_BUF(12); | |
2890 | READ64(sec); | |
2891 | READ32(nsec); | |
2892 | time->tv_sec = (time_t)sec; | |
2893 | time->tv_nsec = (long)nsec; | |
2894 | return 0; | |
2895 | } | |
2896 | ||
2897 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2898 | { | |
2899 | int status = 0; | |
2900 | ||
2901 | time->tv_sec = 0; | |
2902 | time->tv_nsec = 0; | |
2903 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
2904 | return -EIO; | |
2905 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2906 | status = decode_attr_time(xdr, time); | |
2907 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; | |
2908 | } | |
2909 | dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); | |
2910 | return status; | |
2911 | } | |
2912 | ||
2913 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2914 | { | |
2915 | int status = 0; | |
2916 | ||
2917 | time->tv_sec = 0; | |
2918 | time->tv_nsec = 0; | |
2919 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
2920 | return -EIO; | |
2921 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
2922 | status = decode_attr_time(xdr, time); | |
2923 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; | |
2924 | } | |
2925 | dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); | |
2926 | return status; | |
2927 | } | |
2928 | ||
2929 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2930 | { | |
2931 | int status = 0; | |
2932 | ||
2933 | time->tv_sec = 0; | |
2934 | time->tv_nsec = 0; | |
2935 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
2936 | return -EIO; | |
2937 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
2938 | status = decode_attr_time(xdr, time); | |
2939 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; | |
2940 | } | |
2941 | dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); | |
2942 | return status; | |
2943 | } | |
2944 | ||
8687b63a | 2945 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
2946 | { |
2947 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
2948 | unsigned int nwords = xdr->p - savep; | |
2949 | ||
2950 | if (unlikely(attrwords != nwords)) { | |
2951 | printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", | |
2952 | __FUNCTION__, | |
2953 | attrwords << 2, | |
2954 | (attrwords < nwords) ? '<' : '>', | |
2955 | nwords << 2); | |
2956 | return -EIO; | |
2957 | } | |
2958 | return 0; | |
2959 | } | |
2960 | ||
2961 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2962 | { | |
8687b63a | 2963 | __be32 *p; |
1da177e4 LT |
2964 | |
2965 | READ_BUF(20); | |
2966 | READ32(cinfo->atomic); | |
2967 | READ64(cinfo->before); | |
2968 | READ64(cinfo->after); | |
2969 | return 0; | |
2970 | } | |
2971 | ||
2972 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
2973 | { | |
8687b63a | 2974 | __be32 *p; |
1da177e4 LT |
2975 | uint32_t supp, acc; |
2976 | int status; | |
2977 | ||
2978 | status = decode_op_hdr(xdr, OP_ACCESS); | |
2979 | if (status) | |
2980 | return status; | |
2981 | READ_BUF(8); | |
2982 | READ32(supp); | |
2983 | READ32(acc); | |
2984 | access->supported = supp; | |
2985 | access->access = acc; | |
2986 | return 0; | |
2987 | } | |
2988 | ||
2989 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
2990 | { | |
8687b63a | 2991 | __be32 *p; |
1da177e4 LT |
2992 | int status; |
2993 | ||
2994 | status = decode_op_hdr(xdr, OP_CLOSE); | |
2995 | if (status) | |
2996 | return status; | |
8ae20abd TM |
2997 | READ_BUF(NFS4_STATEID_SIZE); |
2998 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
2999 | return 0; |
3000 | } | |
3001 | ||
3002 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3003 | { | |
8687b63a | 3004 | __be32 *p; |
1da177e4 LT |
3005 | int status; |
3006 | ||
3007 | status = decode_op_hdr(xdr, OP_COMMIT); | |
3008 | if (status) | |
3009 | return status; | |
3010 | READ_BUF(8); | |
3011 | COPYMEM(res->verf->verifier, 8); | |
3012 | return 0; | |
3013 | } | |
3014 | ||
3015 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3016 | { | |
8687b63a | 3017 | __be32 *p; |
1da177e4 LT |
3018 | uint32_t bmlen; |
3019 | int status; | |
3020 | ||
3021 | status = decode_op_hdr(xdr, OP_CREATE); | |
3022 | if (status) | |
3023 | return status; | |
3024 | if ((status = decode_change_info(xdr, cinfo))) | |
3025 | return status; | |
3026 | READ_BUF(4); | |
3027 | READ32(bmlen); | |
3028 | READ_BUF(bmlen << 2); | |
3029 | return 0; | |
3030 | } | |
3031 | ||
3032 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3033 | { | |
8687b63a | 3034 | __be32 *savep; |
1da177e4 LT |
3035 | uint32_t attrlen, |
3036 | bitmap[2] = {0}; | |
3037 | int status; | |
3038 | ||
3039 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3040 | goto xdr_error; | |
3041 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3042 | goto xdr_error; | |
3043 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3044 | goto xdr_error; | |
3045 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3046 | goto xdr_error; | |
3047 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3048 | goto xdr_error; | |
3049 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3050 | goto xdr_error; | |
3051 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3052 | goto xdr_error; | |
3053 | status = verify_attr_len(xdr, savep, attrlen); | |
3054 | xdr_error: | |
16c32b71 | 3055 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
3056 | return status; |
3057 | } | |
3058 | ||
3059 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) | |
3060 | { | |
8687b63a | 3061 | __be32 *savep; |
1da177e4 LT |
3062 | uint32_t attrlen, |
3063 | bitmap[2] = {0}; | |
3064 | int status; | |
3065 | ||
3066 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3067 | goto xdr_error; | |
3068 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3069 | goto xdr_error; | |
3070 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3071 | goto xdr_error; | |
3072 | ||
3073 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3074 | goto xdr_error; | |
3075 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3076 | goto xdr_error; | |
3077 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3078 | goto xdr_error; | |
3079 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3080 | goto xdr_error; | |
3081 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3082 | goto xdr_error; | |
3083 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3084 | goto xdr_error; | |
3085 | ||
3086 | status = verify_attr_len(xdr, savep, attrlen); | |
3087 | xdr_error: | |
16c32b71 | 3088 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
3089 | return status; |
3090 | } | |
3091 | ||
3092 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3093 | { | |
8687b63a | 3094 | __be32 *savep; |
1da177e4 LT |
3095 | uint32_t attrlen, |
3096 | bitmap[2] = {0}; | |
3097 | int status; | |
3098 | ||
3099 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3100 | goto xdr_error; | |
3101 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3102 | goto xdr_error; | |
3103 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3104 | goto xdr_error; | |
3105 | ||
3106 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3107 | goto xdr_error; | |
3108 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3109 | goto xdr_error; | |
3110 | ||
3111 | status = verify_attr_len(xdr, savep, attrlen); | |
3112 | xdr_error: | |
16c32b71 | 3113 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
3114 | return status; |
3115 | } | |
3116 | ||
3117 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3118 | { | |
8687b63a | 3119 | __be32 *savep; |
1da177e4 LT |
3120 | uint32_t attrlen, |
3121 | bitmap[2] = {0}, | |
3122 | type; | |
3123 | int status, fmode = 0; | |
99baf625 | 3124 | uint64_t fileid; |
1da177e4 LT |
3125 | |
3126 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3127 | goto xdr_error; | |
3128 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3129 | goto xdr_error; | |
3130 | ||
3131 | fattr->bitmap[0] = bitmap[0]; | |
3132 | fattr->bitmap[1] = bitmap[1]; | |
3133 | ||
3134 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3135 | goto xdr_error; | |
3136 | ||
3137 | ||
3138 | if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) | |
3139 | goto xdr_error; | |
3140 | fattr->type = nfs_type2fmt[type].nfs2type; | |
3141 | fmode = nfs_type2fmt[type].mode; | |
3142 | ||
3143 | if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) | |
3144 | goto xdr_error; | |
3145 | if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) | |
3146 | goto xdr_error; | |
8b4bdcf8 | 3147 | if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) |
1da177e4 LT |
3148 | goto xdr_error; |
3149 | if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) | |
3150 | goto xdr_error; | |
683b57b4 | 3151 | if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, |
7aaa0b3b | 3152 | struct nfs4_fs_locations, |
683b57b4 TM |
3153 | fattr))) != 0) |
3154 | goto xdr_error; | |
1da177e4 LT |
3155 | if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) |
3156 | goto xdr_error; | |
3157 | fattr->mode |= fmode; | |
3158 | if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) | |
3159 | goto xdr_error; | |
7539bbab | 3160 | if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) |
1da177e4 | 3161 | goto xdr_error; |
7539bbab | 3162 | if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) |
1da177e4 LT |
3163 | goto xdr_error; |
3164 | if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) | |
3165 | goto xdr_error; | |
3166 | if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) | |
3167 | goto xdr_error; | |
3168 | if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) | |
3169 | goto xdr_error; | |
3170 | if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) | |
3171 | goto xdr_error; | |
3172 | if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) | |
3173 | goto xdr_error; | |
99baf625 MN |
3174 | if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) |
3175 | goto xdr_error; | |
3176 | if (fattr->fileid == 0 && fileid != 0) | |
3177 | fattr->fileid = fileid; | |
33801147 | 3178 | if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) |
1da177e4 | 3179 | fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; |
1da177e4 | 3180 | xdr_error: |
16c32b71 | 3181 | dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); |
1da177e4 LT |
3182 | return status; |
3183 | } | |
3184 | ||
3185 | ||
3186 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3187 | { | |
8687b63a | 3188 | __be32 *savep; |
1da177e4 LT |
3189 | uint32_t attrlen, bitmap[2]; |
3190 | int status; | |
3191 | ||
3192 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3193 | goto xdr_error; | |
3194 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3195 | goto xdr_error; | |
3196 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3197 | goto xdr_error; | |
3198 | ||
3199 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3200 | ||
3201 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3202 | goto xdr_error; | |
3203 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3204 | goto xdr_error; | |
3205 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3206 | goto xdr_error; | |
3207 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3208 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3209 | goto xdr_error; | |
3210 | fsinfo->wtpref = fsinfo->wtmax; | |
3211 | ||
3212 | status = verify_attr_len(xdr, savep, attrlen); | |
3213 | xdr_error: | |
16c32b71 | 3214 | dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); |
1da177e4 LT |
3215 | return status; |
3216 | } | |
3217 | ||
3218 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3219 | { | |
8687b63a | 3220 | __be32 *p; |
1da177e4 LT |
3221 | uint32_t len; |
3222 | int status; | |
3223 | ||
9936781d TM |
3224 | /* Zero handle first to allow comparisons */ |
3225 | memset(fh, 0, sizeof(*fh)); | |
3226 | ||
1da177e4 LT |
3227 | status = decode_op_hdr(xdr, OP_GETFH); |
3228 | if (status) | |
3229 | return status; | |
1da177e4 LT |
3230 | |
3231 | READ_BUF(4); | |
3232 | READ32(len); | |
3233 | if (len > NFS4_FHSIZE) | |
3234 | return -EIO; | |
3235 | fh->size = len; | |
3236 | READ_BUF(len); | |
3237 | COPYMEM(fh->data, len); | |
3238 | return 0; | |
3239 | } | |
3240 | ||
3241 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3242 | { | |
3243 | int status; | |
3244 | ||
3245 | status = decode_op_hdr(xdr, OP_LINK); | |
3246 | if (status) | |
3247 | return status; | |
3248 | return decode_change_info(xdr, cinfo); | |
3249 | } | |
3250 | ||
3251 | /* | |
3252 | * We create the owner, so we know a proper owner.id length is 4. | |
3253 | */ | |
911d1aaf | 3254 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3255 | { |
911d1aaf | 3256 | uint64_t offset, length, clientid; |
8687b63a | 3257 | __be32 *p; |
911d1aaf | 3258 | uint32_t namelen, type; |
1da177e4 LT |
3259 | |
3260 | READ_BUF(32); | |
911d1aaf TM |
3261 | READ64(offset); |
3262 | READ64(length); | |
3263 | READ32(type); | |
3264 | if (fl != NULL) { | |
3265 | fl->fl_start = (loff_t)offset; | |
3266 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3267 | if (length == ~(uint64_t)0) | |
3268 | fl->fl_end = OFFSET_MAX; | |
3269 | fl->fl_type = F_WRLCK; | |
3270 | if (type & 1) | |
3271 | fl->fl_type = F_RDLCK; | |
3272 | fl->fl_pid = 0; | |
3273 | } | |
3274 | READ64(clientid); | |
1da177e4 LT |
3275 | READ32(namelen); |
3276 | READ_BUF(namelen); | |
1da177e4 LT |
3277 | return -NFS4ERR_DENIED; |
3278 | } | |
3279 | ||
911d1aaf | 3280 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3281 | { |
8687b63a | 3282 | __be32 *p; |
1da177e4 LT |
3283 | int status; |
3284 | ||
3285 | status = decode_op_hdr(xdr, OP_LOCK); | |
3286 | if (status == 0) { | |
8ae20abd TM |
3287 | READ_BUF(NFS4_STATEID_SIZE); |
3288 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3289 | } else if (status == -NFS4ERR_DENIED) |
911d1aaf | 3290 | return decode_lock_denied(xdr, NULL); |
1da177e4 LT |
3291 | return status; |
3292 | } | |
3293 | ||
911d1aaf | 3294 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3295 | { |
3296 | int status; | |
3297 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3298 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3299 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3300 | return status; |
3301 | } | |
3302 | ||
911d1aaf | 3303 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3304 | { |
8687b63a | 3305 | __be32 *p; |
1da177e4 LT |
3306 | int status; |
3307 | ||
3308 | status = decode_op_hdr(xdr, OP_LOCKU); | |
3309 | if (status == 0) { | |
8ae20abd TM |
3310 | READ_BUF(NFS4_STATEID_SIZE); |
3311 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3312 | } |
3313 | return status; | |
3314 | } | |
3315 | ||
3316 | static int decode_lookup(struct xdr_stream *xdr) | |
3317 | { | |
3318 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3319 | } | |
3320 | ||
3321 | /* This is too sick! */ | |
3322 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3323 | { | |
8687b63a | 3324 | __be32 *p; |
1da177e4 LT |
3325 | uint32_t limit_type, nblocks, blocksize; |
3326 | ||
3327 | READ_BUF(12); | |
3328 | READ32(limit_type); | |
3329 | switch (limit_type) { | |
3330 | case 1: | |
3331 | READ64(*maxsize); | |
3332 | break; | |
3333 | case 2: | |
3334 | READ32(nblocks); | |
3335 | READ32(blocksize); | |
3336 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
3337 | } | |
3338 | return 0; | |
3339 | } | |
3340 | ||
3341 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3342 | { | |
8687b63a | 3343 | __be32 *p; |
1da177e4 LT |
3344 | uint32_t delegation_type; |
3345 | ||
3346 | READ_BUF(4); | |
3347 | READ32(delegation_type); | |
3348 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3349 | res->delegation_type = 0; | |
3350 | return 0; | |
3351 | } | |
8ae20abd TM |
3352 | READ_BUF(NFS4_STATEID_SIZE+4); |
3353 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3354 | READ32(res->do_recall); |
3355 | switch (delegation_type) { | |
3356 | case NFS4_OPEN_DELEGATE_READ: | |
3357 | res->delegation_type = FMODE_READ; | |
3358 | break; | |
3359 | case NFS4_OPEN_DELEGATE_WRITE: | |
3360 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3361 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
3362 | return -EIO; | |
3363 | } | |
7539bbab | 3364 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3365 | } |
3366 | ||
3367 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3368 | { | |
8687b63a | 3369 | __be32 *p; |
aa53ed54 | 3370 | uint32_t savewords, bmlen, i; |
1da177e4 LT |
3371 | int status; |
3372 | ||
3373 | status = decode_op_hdr(xdr, OP_OPEN); | |
3374 | if (status) | |
3375 | return status; | |
8ae20abd TM |
3376 | READ_BUF(NFS4_STATEID_SIZE); |
3377 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3378 | |
3379 | decode_change_info(xdr, &res->cinfo); | |
3380 | ||
3381 | READ_BUF(8); | |
3382 | READ32(res->rflags); | |
3383 | READ32(bmlen); | |
3384 | if (bmlen > 10) | |
3385 | goto xdr_error; | |
3386 | ||
3387 | READ_BUF(bmlen << 2); | |
aa53ed54 JL |
3388 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3389 | for (i = 0; i < savewords; ++i) | |
3390 | READ32(res->attrset[i]); | |
3391 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3392 | res->attrset[i] = 0; | |
3393 | ||
1da177e4 LT |
3394 | return decode_delegation(xdr, res); |
3395 | xdr_error: | |
16c32b71 | 3396 | dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); |
1da177e4 LT |
3397 | return -EIO; |
3398 | } | |
3399 | ||
3400 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3401 | { | |
8687b63a | 3402 | __be32 *p; |
1da177e4 LT |
3403 | int status; |
3404 | ||
3405 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); | |
3406 | if (status) | |
3407 | return status; | |
8ae20abd TM |
3408 | READ_BUF(NFS4_STATEID_SIZE); |
3409 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3410 | return 0; |
3411 | } | |
3412 | ||
3413 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3414 | { | |
8687b63a | 3415 | __be32 *p; |
1da177e4 LT |
3416 | int status; |
3417 | ||
3418 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
3419 | if (status) | |
3420 | return status; | |
8ae20abd TM |
3421 | READ_BUF(NFS4_STATEID_SIZE); |
3422 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3423 | return 0; |
3424 | } | |
3425 | ||
3426 | static int decode_putfh(struct xdr_stream *xdr) | |
3427 | { | |
3428 | return decode_op_hdr(xdr, OP_PUTFH); | |
3429 | } | |
3430 | ||
3431 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3432 | { | |
3433 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3434 | } | |
3435 | ||
3436 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3437 | { | |
3438 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3439 | __be32 *p; |
1da177e4 LT |
3440 | uint32_t count, eof, recvd, hdrlen; |
3441 | int status; | |
3442 | ||
3443 | status = decode_op_hdr(xdr, OP_READ); | |
3444 | if (status) | |
3445 | return status; | |
3446 | READ_BUF(8); | |
3447 | READ32(eof); | |
3448 | READ32(count); | |
3449 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3450 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3451 | if (count > recvd) { | |
3452 | printk(KERN_WARNING "NFS: server cheating in read reply: " | |
3453 | "count %u > recvd %u\n", count, recvd); | |
3454 | count = recvd; | |
3455 | eof = 0; | |
3456 | } | |
3457 | xdr_read_pages(xdr, count); | |
3458 | res->eof = eof; | |
3459 | res->count = count; | |
3460 | return 0; | |
3461 | } | |
3462 | ||
3463 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3464 | { | |
3465 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3466 | struct page *page = *rcvbuf->pages; | |
3467 | struct kvec *iov = rcvbuf->head; | |
3468 | unsigned int nr, pglen = rcvbuf->page_len; | |
8687b63a | 3469 | __be32 *end, *entry, *p, *kaddr; |
e8896495 | 3470 | uint32_t len, attrlen, xlen; |
1da177e4 LT |
3471 | int hdrlen, recvd, status; |
3472 | ||
3473 | status = decode_op_hdr(xdr, OP_READDIR); | |
3474 | if (status) | |
3475 | return status; | |
3476 | READ_BUF(8); | |
3477 | COPYMEM(readdir->verifier.data, 8); | |
eadf4598 TM |
3478 | dprintk("%s: verifier = 0x%x%x\n", |
3479 | __FUNCTION__, | |
3480 | ((u32 *)readdir->verifier.data)[0], | |
3481 | ((u32 *)readdir->verifier.data)[1]); | |
3482 | ||
1da177e4 LT |
3483 | |
3484 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3485 | recvd = rcvbuf->len - hdrlen; | |
3486 | if (pglen > recvd) | |
3487 | pglen = recvd; | |
3488 | xdr_read_pages(xdr, pglen); | |
3489 | ||
3490 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3491 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3492 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 LT |
3493 | entry = p; |
3494 | for (nr = 0; *p++; nr++) { | |
e8896495 | 3495 | if (end - p < 3) |
1da177e4 | 3496 | goto short_pkt; |
eadf4598 | 3497 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3498 | p += 2; /* cookie */ |
3499 | len = ntohl(*p++); /* filename length */ | |
3500 | if (len > NFS4_MAXNAMLEN) { | |
3501 | printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); | |
3502 | goto err_unmap; | |
3503 | } | |
e8896495 DH |
3504 | xlen = XDR_QUADLEN(len); |
3505 | if (end - p < xlen + 1) | |
1da177e4 | 3506 | goto short_pkt; |
e8896495 DH |
3507 | dprintk("filename = %*s\n", len, (char *)p); |
3508 | p += xlen; | |
1da177e4 | 3509 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3510 | if (end - p < len + 1) |
1da177e4 | 3511 | goto short_pkt; |
e8896495 | 3512 | p += len; |
1da177e4 | 3513 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3514 | if (end - p < attrlen + 2) |
1da177e4 | 3515 | goto short_pkt; |
e8896495 | 3516 | p += attrlen; /* attributes */ |
1da177e4 LT |
3517 | entry = p; |
3518 | } | |
3519 | if (!nr && (entry[0] != 0 || entry[1] == 0)) | |
3520 | goto short_pkt; | |
3521 | out: | |
3522 | kunmap_atomic(kaddr, KM_USER0); | |
3523 | return 0; | |
3524 | short_pkt: | |
eadf4598 | 3525 | dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); |
1da177e4 LT |
3526 | entry[0] = entry[1] = 0; |
3527 | /* truncate listing ? */ | |
3528 | if (!nr) { | |
3529 | printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); | |
3530 | entry[1] = 1; | |
3531 | } | |
3532 | goto out; | |
3533 | err_unmap: | |
3534 | kunmap_atomic(kaddr, KM_USER0); | |
3535 | return -errno_NFSERR_IO; | |
3536 | } | |
3537 | ||
3538 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3539 | { | |
3540 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3541 | struct kvec *iov = rcvbuf->head; | |
3542 | int hdrlen, len, recvd; | |
8687b63a | 3543 | __be32 *p; |
1da177e4 LT |
3544 | char *kaddr; |
3545 | int status; | |
3546 | ||
3547 | status = decode_op_hdr(xdr, OP_READLINK); | |
3548 | if (status) | |
3549 | return status; | |
3550 | ||
3551 | /* Convert length of symlink */ | |
3552 | READ_BUF(4); | |
3553 | READ32(len); | |
3554 | if (len >= rcvbuf->page_len || len <= 0) { | |
3555 | dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); | |
3556 | return -ENAMETOOLONG; | |
3557 | } | |
3558 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3559 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3560 | if (recvd < len) { | |
3561 | printk(KERN_WARNING "NFS: server cheating in readlink reply: " | |
3562 | "count %u > recvd %u\n", len, recvd); | |
3563 | return -EIO; | |
3564 | } | |
3565 | xdr_read_pages(xdr, len); | |
3566 | /* | |
3567 | * The XDR encode routine has set things up so that | |
3568 | * the link text will be copied directly into the | |
3569 | * buffer. We just have to do overflow-checking, | |
3570 | * and and null-terminate the text (the VFS expects | |
3571 | * null-termination). | |
3572 | */ | |
3573 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3574 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3575 | kunmap_atomic(kaddr, KM_USER0); | |
3576 | return 0; | |
3577 | } | |
3578 | ||
3579 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3580 | { | |
3581 | int status; | |
3582 | ||
3583 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3584 | if (status) | |
3585 | goto out; | |
3586 | status = decode_change_info(xdr, cinfo); | |
3587 | out: | |
3588 | return status; | |
3589 | } | |
3590 | ||
3591 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3592 | struct nfs4_change_info *new_cinfo) | |
3593 | { | |
3594 | int status; | |
3595 | ||
3596 | status = decode_op_hdr(xdr, OP_RENAME); | |
3597 | if (status) | |
3598 | goto out; | |
3599 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3600 | goto out; | |
3601 | status = decode_change_info(xdr, new_cinfo); | |
3602 | out: | |
3603 | return status; | |
3604 | } | |
3605 | ||
3606 | static int decode_renew(struct xdr_stream *xdr) | |
3607 | { | |
3608 | return decode_op_hdr(xdr, OP_RENEW); | |
3609 | } | |
3610 | ||
56ae19f3 TM |
3611 | static int |
3612 | decode_restorefh(struct xdr_stream *xdr) | |
3613 | { | |
3614 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3615 | } | |
3616 | ||
029d105e BF |
3617 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3618 | size_t *acl_len) | |
3619 | { | |
8687b63a | 3620 | __be32 *savep; |
029d105e BF |
3621 | uint32_t attrlen, |
3622 | bitmap[2] = {0}; | |
3623 | struct kvec *iov = req->rq_rcv_buf.head; | |
3624 | int status; | |
3625 | ||
3626 | *acl_len = 0; | |
3627 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3628 | goto out; | |
3629 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3630 | goto out; | |
3631 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3632 | goto out; | |
3633 | ||
3634 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3635 | return -EIO; | |
3636 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
3637 | int hdrlen, recvd; | |
3638 | ||
3639 | /* We ignore &savep and don't do consistency checks on | |
3640 | * the attr length. Let userspace figure it out.... */ | |
3641 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3642 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3643 | if (attrlen > recvd) { | |
3644 | printk(KERN_WARNING "NFS: server cheating in getattr" | |
3645 | " acl reply: attrlen %u > recvd %u\n", | |
3646 | attrlen, recvd); | |
3647 | return -EINVAL; | |
3648 | } | |
c04871e6 | 3649 | xdr_read_pages(xdr, attrlen); |
029d105e | 3650 | *acl_len = attrlen; |
8c233cf9 BF |
3651 | } else |
3652 | status = -EOPNOTSUPP; | |
029d105e BF |
3653 | |
3654 | out: | |
3655 | return status; | |
3656 | } | |
3657 | ||
1da177e4 LT |
3658 | static int |
3659 | decode_savefh(struct xdr_stream *xdr) | |
3660 | { | |
3661 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3662 | } | |
3663 | ||
3664 | static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) | |
3665 | { | |
8687b63a | 3666 | __be32 *p; |
1da177e4 LT |
3667 | uint32_t bmlen; |
3668 | int status; | |
3669 | ||
3670 | ||
3671 | status = decode_op_hdr(xdr, OP_SETATTR); | |
3672 | if (status) | |
3673 | return status; | |
3674 | READ_BUF(4); | |
3675 | READ32(bmlen); | |
3676 | READ_BUF(bmlen << 2); | |
3677 | return 0; | |
3678 | } | |
3679 | ||
adfa6f98 | 3680 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3681 | { |
8687b63a | 3682 | __be32 *p; |
1da177e4 LT |
3683 | uint32_t opnum; |
3684 | int32_t nfserr; | |
3685 | ||
3686 | READ_BUF(8); | |
3687 | READ32(opnum); | |
3688 | if (opnum != OP_SETCLIENTID) { | |
3689 | printk(KERN_NOTICE | |
3690 | "nfs4_decode_setclientid: Server returned operation" | |
3691 | " %d\n", opnum); | |
3692 | return -EIO; | |
3693 | } | |
3694 | READ32(nfserr); | |
3695 | if (nfserr == NFS_OK) { | |
8ae20abd | 3696 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3697 | READ64(clp->cl_clientid); |
8ae20abd | 3698 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3699 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3700 | uint32_t len; | |
3701 | ||
3702 | /* skip netid string */ | |
3703 | READ_BUF(4); | |
3704 | READ32(len); | |
3705 | READ_BUF(len); | |
3706 | ||
3707 | /* skip uaddr string */ | |
3708 | READ_BUF(4); | |
3709 | READ32(len); | |
3710 | READ_BUF(len); | |
3711 | return -NFSERR_CLID_INUSE; | |
3712 | } else | |
0a8ea437 | 3713 | return -nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3714 | |
3715 | return 0; | |
3716 | } | |
3717 | ||
3718 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3719 | { | |
3720 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3721 | } | |
3722 | ||
3723 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3724 | { | |
8687b63a | 3725 | __be32 *p; |
1da177e4 LT |
3726 | int status; |
3727 | ||
3728 | status = decode_op_hdr(xdr, OP_WRITE); | |
3729 | if (status) | |
3730 | return status; | |
3731 | ||
3732 | READ_BUF(16); | |
3733 | READ32(res->count); | |
3734 | READ32(res->verf->committed); | |
3735 | COPYMEM(res->verf->verifier, 8); | |
3736 | return 0; | |
3737 | } | |
3738 | ||
3739 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3740 | { | |
3741 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3742 | } | |
3743 | ||
3744 | /* | |
3745 | * Decode OPEN_DOWNGRADE response | |
3746 | */ | |
8687b63a | 3747 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 LT |
3748 | { |
3749 | struct xdr_stream xdr; | |
3750 | struct compound_hdr hdr; | |
3751 | int status; | |
3752 | ||
3753 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3754 | status = decode_compound_hdr(&xdr, &hdr); | |
3755 | if (status) | |
3756 | goto out; | |
3757 | status = decode_putfh(&xdr); | |
3758 | if (status) | |
3759 | goto out; | |
3760 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3761 | if (status != 0) |
3762 | goto out; | |
3763 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3764 | out: |
3765 | return status; | |
3766 | } | |
3767 | ||
3768 | /* | |
3769 | * END OF "GENERIC" DECODE ROUTINES. | |
3770 | */ | |
3771 | ||
3772 | /* | |
3773 | * Decode ACCESS response | |
3774 | */ | |
8687b63a | 3775 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3776 | { |
3777 | struct xdr_stream xdr; | |
3778 | struct compound_hdr hdr; | |
3779 | int status; | |
3780 | ||
3781 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3782 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3783 | goto out; | |
3784 | if ((status = decode_putfh(&xdr)) == 0) | |
3785 | status = decode_access(&xdr, res); | |
3786 | out: | |
3787 | return status; | |
3788 | } | |
3789 | ||
3790 | /* | |
3791 | * Decode LOOKUP response | |
3792 | */ | |
8687b63a | 3793 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3794 | { |
3795 | struct xdr_stream xdr; | |
3796 | struct compound_hdr hdr; | |
3797 | int status; | |
3798 | ||
3799 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3800 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3801 | goto out; | |
3802 | if ((status = decode_putfh(&xdr)) != 0) | |
3803 | goto out; | |
3804 | if ((status = decode_lookup(&xdr)) != 0) | |
3805 | goto out; | |
3806 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3807 | goto out; | |
3808 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3809 | out: | |
3810 | return status; | |
3811 | } | |
3812 | ||
3813 | /* | |
3814 | * Decode LOOKUP_ROOT response | |
3815 | */ | |
8687b63a | 3816 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3817 | { |
3818 | struct xdr_stream xdr; | |
3819 | struct compound_hdr hdr; | |
3820 | int status; | |
3821 | ||
3822 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3823 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3824 | goto out; | |
3825 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3826 | goto out; | |
3827 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3828 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3829 | out: | |
3830 | return status; | |
3831 | } | |
3832 | ||
3833 | /* | |
3834 | * Decode REMOVE response | |
3835 | */ | |
8687b63a | 3836 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_remove_res *res) |
1da177e4 LT |
3837 | { |
3838 | struct xdr_stream xdr; | |
3839 | struct compound_hdr hdr; | |
3840 | int status; | |
3841 | ||
3842 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3843 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3844 | goto out; | |
16e42959 TM |
3845 | if ((status = decode_putfh(&xdr)) != 0) |
3846 | goto out; | |
3847 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3848 | goto out; | |
3849 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 LT |
3850 | out: |
3851 | return status; | |
3852 | } | |
3853 | ||
3854 | /* | |
3855 | * Decode RENAME response | |
3856 | */ | |
8687b63a | 3857 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3858 | { |
3859 | struct xdr_stream xdr; | |
3860 | struct compound_hdr hdr; | |
3861 | int status; | |
3862 | ||
3863 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3864 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3865 | goto out; | |
3866 | if ((status = decode_putfh(&xdr)) != 0) | |
3867 | goto out; | |
3868 | if ((status = decode_savefh(&xdr)) != 0) | |
3869 | goto out; | |
3870 | if ((status = decode_putfh(&xdr)) != 0) | |
3871 | goto out; | |
6caf2c82 TM |
3872 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
3873 | goto out; | |
3874 | /* Current FH is target directory */ | |
3875 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
3876 | goto out; | |
3877 | if ((status = decode_restorefh(&xdr)) != 0) | |
3878 | goto out; | |
3879 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
3880 | out: |
3881 | return status; | |
3882 | } | |
3883 | ||
3884 | /* | |
3885 | * Decode LINK response | |
3886 | */ | |
8687b63a | 3887 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
3888 | { |
3889 | struct xdr_stream xdr; | |
3890 | struct compound_hdr hdr; | |
3891 | int status; | |
3892 | ||
3893 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3894 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3895 | goto out; | |
3896 | if ((status = decode_putfh(&xdr)) != 0) | |
3897 | goto out; | |
3898 | if ((status = decode_savefh(&xdr)) != 0) | |
3899 | goto out; | |
3900 | if ((status = decode_putfh(&xdr)) != 0) | |
3901 | goto out; | |
91ba2eee TM |
3902 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
3903 | goto out; | |
3904 | /* | |
3905 | * Note order: OP_LINK leaves the directory as the current | |
3906 | * filehandle. | |
3907 | */ | |
3908 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
3909 | goto out; | |
3910 | if ((status = decode_restorefh(&xdr)) != 0) | |
3911 | goto out; | |
3912 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3913 | out: |
3914 | return status; | |
3915 | } | |
3916 | ||
3917 | /* | |
3918 | * Decode CREATE response | |
3919 | */ | |
8687b63a | 3920 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3921 | { |
3922 | struct xdr_stream xdr; | |
3923 | struct compound_hdr hdr; | |
3924 | int status; | |
3925 | ||
3926 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3927 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3928 | goto out; | |
3929 | if ((status = decode_putfh(&xdr)) != 0) | |
3930 | goto out; | |
56ae19f3 TM |
3931 | if ((status = decode_savefh(&xdr)) != 0) |
3932 | goto out; | |
1da177e4 LT |
3933 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
3934 | goto out; | |
3935 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3936 | goto out; | |
56ae19f3 TM |
3937 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
3938 | goto out; | |
3939 | if ((status = decode_restorefh(&xdr)) != 0) | |
3940 | goto out; | |
3941 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
3942 | out: |
3943 | return status; | |
3944 | } | |
3945 | ||
3946 | /* | |
3947 | * Decode SYMLINK response | |
3948 | */ | |
8687b63a | 3949 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3950 | { |
3951 | return nfs4_xdr_dec_create(rqstp, p, res); | |
3952 | } | |
3953 | ||
3954 | /* | |
3955 | * Decode GETATTR response | |
3956 | */ | |
8687b63a | 3957 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
3958 | { |
3959 | struct xdr_stream xdr; | |
3960 | struct compound_hdr hdr; | |
3961 | int status; | |
3962 | ||
3963 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3964 | status = decode_compound_hdr(&xdr, &hdr); | |
3965 | if (status) | |
3966 | goto out; | |
3967 | status = decode_putfh(&xdr); | |
3968 | if (status) | |
3969 | goto out; | |
3970 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3971 | out: | |
3972 | return status; | |
3973 | ||
3974 | } | |
3975 | ||
23ec6965 BF |
3976 | /* |
3977 | * Encode an SETACL request | |
3978 | */ | |
3979 | static int | |
8687b63a | 3980 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 BF |
3981 | { |
3982 | struct xdr_stream xdr; | |
3983 | struct compound_hdr hdr = { | |
3984 | .nops = 2, | |
3985 | }; | |
3986 | int status; | |
3987 | ||
3988 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
3989 | encode_compound_hdr(&xdr, &hdr); | |
3990 | status = encode_putfh(&xdr, args->fh); | |
3991 | if (status) | |
3992 | goto out; | |
3993 | status = encode_setacl(&xdr, args); | |
3994 | out: | |
3995 | return status; | |
3996 | } | |
3997 | /* | |
3998 | * Decode SETACL response | |
3999 | */ | |
4000 | static int | |
8687b63a | 4001 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) |
23ec6965 BF |
4002 | { |
4003 | struct xdr_stream xdr; | |
4004 | struct compound_hdr hdr; | |
4005 | int status; | |
4006 | ||
4007 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4008 | status = decode_compound_hdr(&xdr, &hdr); | |
4009 | if (status) | |
4010 | goto out; | |
4011 | status = decode_putfh(&xdr); | |
4012 | if (status) | |
4013 | goto out; | |
4014 | status = decode_setattr(&xdr, res); | |
4015 | out: | |
4016 | return status; | |
4017 | } | |
1da177e4 | 4018 | |
029d105e BF |
4019 | /* |
4020 | * Decode GETACL response | |
4021 | */ | |
4022 | static int | |
8687b63a | 4023 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) |
029d105e BF |
4024 | { |
4025 | struct xdr_stream xdr; | |
4026 | struct compound_hdr hdr; | |
4027 | int status; | |
4028 | ||
4029 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4030 | status = decode_compound_hdr(&xdr, &hdr); | |
4031 | if (status) | |
4032 | goto out; | |
4033 | status = decode_putfh(&xdr); | |
4034 | if (status) | |
4035 | goto out; | |
4036 | status = decode_getacl(&xdr, rqstp, acl_len); | |
4037 | ||
4038 | out: | |
4039 | return status; | |
4040 | } | |
4041 | ||
1da177e4 LT |
4042 | /* |
4043 | * Decode CLOSE response | |
4044 | */ | |
8687b63a | 4045 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 LT |
4046 | { |
4047 | struct xdr_stream xdr; | |
4048 | struct compound_hdr hdr; | |
4049 | int status; | |
4050 | ||
4051 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4052 | status = decode_compound_hdr(&xdr, &hdr); | |
4053 | if (status) | |
4054 | goto out; | |
4055 | status = decode_putfh(&xdr); | |
4056 | if (status) | |
4057 | goto out; | |
4058 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4059 | if (status != 0) |
4060 | goto out; | |
4061 | /* | |
4062 | * Note: Server may do delete on close for this file | |
4063 | * in which case the getattr call will fail with | |
4064 | * an ESTALE error. Shouldn't be a problem, | |
4065 | * though, since fattr->valid will remain unset. | |
4066 | */ | |
4067 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4068 | out: |
4069 | return status; | |
4070 | } | |
4071 | ||
4072 | /* | |
4073 | * Decode OPEN response | |
4074 | */ | |
8687b63a | 4075 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 LT |
4076 | { |
4077 | struct xdr_stream xdr; | |
4078 | struct compound_hdr hdr; | |
4079 | int status; | |
4080 | ||
4081 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4082 | status = decode_compound_hdr(&xdr, &hdr); | |
4083 | if (status) | |
4084 | goto out; | |
4085 | status = decode_putfh(&xdr); | |
4086 | if (status) | |
4087 | goto out; | |
56ae19f3 TM |
4088 | status = decode_savefh(&xdr); |
4089 | if (status) | |
4090 | goto out; | |
1da177e4 LT |
4091 | status = decode_open(&xdr, res); |
4092 | if (status) | |
4093 | goto out; | |
9936781d | 4094 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4095 | goto out; |
56ae19f3 TM |
4096 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4097 | goto out; | |
365c8f58 | 4098 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4099 | goto out; |
4100 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 LT |
4101 | out: |
4102 | return status; | |
4103 | } | |
4104 | ||
4105 | /* | |
4106 | * Decode OPEN_CONFIRM response | |
4107 | */ | |
8687b63a | 4108 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 LT |
4109 | { |
4110 | struct xdr_stream xdr; | |
4111 | struct compound_hdr hdr; | |
4112 | int status; | |
4113 | ||
4114 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4115 | status = decode_compound_hdr(&xdr, &hdr); | |
4116 | if (status) | |
4117 | goto out; | |
4118 | status = decode_putfh(&xdr); | |
4119 | if (status) | |
4120 | goto out; | |
4121 | status = decode_open_confirm(&xdr, res); | |
4122 | out: | |
4123 | return status; | |
4124 | } | |
4125 | ||
4126 | /* | |
4127 | * Decode OPEN response | |
4128 | */ | |
8687b63a | 4129 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 LT |
4130 | { |
4131 | struct xdr_stream xdr; | |
4132 | struct compound_hdr hdr; | |
4133 | int status; | |
4134 | ||
4135 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4136 | status = decode_compound_hdr(&xdr, &hdr); | |
4137 | if (status) | |
4138 | goto out; | |
4139 | status = decode_putfh(&xdr); | |
4140 | if (status) | |
4141 | goto out; | |
4142 | status = decode_open(&xdr, res); | |
864472e9 TM |
4143 | if (status) |
4144 | goto out; | |
4145 | decode_getfattr(&xdr, res->f_attr, res->server); | |
1da177e4 LT |
4146 | out: |
4147 | return status; | |
4148 | } | |
4149 | ||
4150 | /* | |
4151 | * Decode SETATTR response | |
4152 | */ | |
8687b63a | 4153 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 LT |
4154 | { |
4155 | struct xdr_stream xdr; | |
4156 | struct compound_hdr hdr; | |
4157 | int status; | |
4158 | ||
4159 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4160 | status = decode_compound_hdr(&xdr, &hdr); | |
4161 | if (status) | |
4162 | goto out; | |
4163 | status = decode_putfh(&xdr); | |
4164 | if (status) | |
4165 | goto out; | |
4166 | status = decode_setattr(&xdr, res); | |
4167 | if (status) | |
4168 | goto out; | |
4169 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4170 | if (status == NFS4ERR_DELAY) | |
4171 | status = 0; | |
4172 | out: | |
4173 | return status; | |
4174 | } | |
4175 | ||
4176 | /* | |
4177 | * Decode LOCK response | |
4178 | */ | |
8687b63a | 4179 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4180 | { |
4181 | struct xdr_stream xdr; | |
4182 | struct compound_hdr hdr; | |
4183 | int status; | |
4184 | ||
4185 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4186 | status = decode_compound_hdr(&xdr, &hdr); | |
4187 | if (status) | |
4188 | goto out; | |
4189 | status = decode_putfh(&xdr); | |
4190 | if (status) | |
4191 | goto out; | |
4192 | status = decode_lock(&xdr, res); | |
4193 | out: | |
4194 | return status; | |
4195 | } | |
4196 | ||
4197 | /* | |
4198 | * Decode LOCKT response | |
4199 | */ | |
8687b63a | 4200 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4201 | { |
4202 | struct xdr_stream xdr; | |
4203 | struct compound_hdr hdr; | |
4204 | int status; | |
4205 | ||
4206 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4207 | status = decode_compound_hdr(&xdr, &hdr); | |
4208 | if (status) | |
4209 | goto out; | |
4210 | status = decode_putfh(&xdr); | |
4211 | if (status) | |
4212 | goto out; | |
4213 | status = decode_lockt(&xdr, res); | |
4214 | out: | |
4215 | return status; | |
4216 | } | |
4217 | ||
4218 | /* | |
4219 | * Decode LOCKU response | |
4220 | */ | |
8687b63a | 4221 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4222 | { |
4223 | struct xdr_stream xdr; | |
4224 | struct compound_hdr hdr; | |
4225 | int status; | |
4226 | ||
4227 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4228 | status = decode_compound_hdr(&xdr, &hdr); | |
4229 | if (status) | |
4230 | goto out; | |
4231 | status = decode_putfh(&xdr); | |
4232 | if (status) | |
4233 | goto out; | |
4234 | status = decode_locku(&xdr, res); | |
4235 | out: | |
4236 | return status; | |
4237 | } | |
4238 | ||
4239 | /* | |
4240 | * Decode READLINK response | |
4241 | */ | |
8687b63a | 4242 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) |
1da177e4 LT |
4243 | { |
4244 | struct xdr_stream xdr; | |
4245 | struct compound_hdr hdr; | |
4246 | int status; | |
4247 | ||
4248 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4249 | status = decode_compound_hdr(&xdr, &hdr); | |
4250 | if (status) | |
4251 | goto out; | |
4252 | status = decode_putfh(&xdr); | |
4253 | if (status) | |
4254 | goto out; | |
4255 | status = decode_readlink(&xdr, rqstp); | |
4256 | out: | |
4257 | return status; | |
4258 | } | |
4259 | ||
4260 | /* | |
4261 | * Decode READDIR response | |
4262 | */ | |
8687b63a | 4263 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4264 | { |
4265 | struct xdr_stream xdr; | |
4266 | struct compound_hdr hdr; | |
4267 | int status; | |
4268 | ||
4269 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4270 | status = decode_compound_hdr(&xdr, &hdr); | |
4271 | if (status) | |
4272 | goto out; | |
4273 | status = decode_putfh(&xdr); | |
4274 | if (status) | |
4275 | goto out; | |
4276 | status = decode_readdir(&xdr, rqstp, res); | |
4277 | out: | |
4278 | return status; | |
4279 | } | |
4280 | ||
4281 | /* | |
4282 | * Decode Read response | |
4283 | */ | |
8687b63a | 4284 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4285 | { |
4286 | struct xdr_stream xdr; | |
4287 | struct compound_hdr hdr; | |
4288 | int status; | |
4289 | ||
4290 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4291 | status = decode_compound_hdr(&xdr, &hdr); | |
4292 | if (status) | |
4293 | goto out; | |
4294 | status = decode_putfh(&xdr); | |
4295 | if (status) | |
4296 | goto out; | |
4297 | status = decode_read(&xdr, rqstp, res); | |
4298 | if (!status) | |
4299 | status = res->count; | |
4300 | out: | |
4301 | return status; | |
4302 | } | |
4303 | ||
4304 | /* | |
4305 | * Decode WRITE response | |
4306 | */ | |
8687b63a | 4307 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4308 | { |
4309 | struct xdr_stream xdr; | |
4310 | struct compound_hdr hdr; | |
4311 | int status; | |
4312 | ||
4313 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4314 | status = decode_compound_hdr(&xdr, &hdr); | |
4315 | if (status) | |
4316 | goto out; | |
4317 | status = decode_putfh(&xdr); | |
4318 | if (status) | |
4319 | goto out; | |
4320 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4321 | if (status) |
4322 | goto out; | |
4323 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4324 | if (!status) |
4325 | status = res->count; | |
4326 | out: | |
4327 | return status; | |
4328 | } | |
4329 | ||
4330 | /* | |
4331 | * Decode COMMIT response | |
4332 | */ | |
8687b63a | 4333 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4334 | { |
4335 | struct xdr_stream xdr; | |
4336 | struct compound_hdr hdr; | |
4337 | int status; | |
4338 | ||
4339 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4340 | status = decode_compound_hdr(&xdr, &hdr); | |
4341 | if (status) | |
4342 | goto out; | |
4343 | status = decode_putfh(&xdr); | |
4344 | if (status) | |
4345 | goto out; | |
4346 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4347 | if (status) |
4348 | goto out; | |
4349 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4350 | out: |
4351 | return status; | |
4352 | } | |
4353 | ||
4354 | /* | |
4355 | * FSINFO request | |
4356 | */ | |
8687b63a | 4357 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4358 | { |
4359 | struct xdr_stream xdr; | |
4360 | struct compound_hdr hdr; | |
4361 | int status; | |
4362 | ||
4363 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4364 | status = decode_compound_hdr(&xdr, &hdr); | |
4365 | if (!status) | |
4366 | status = decode_putfh(&xdr); | |
4367 | if (!status) | |
4368 | status = decode_fsinfo(&xdr, fsinfo); | |
4369 | if (!status) | |
0a8ea437 | 4370 | status = -nfs4_stat_to_errno(hdr.status); |
1da177e4 LT |
4371 | return status; |
4372 | } | |
4373 | ||
4374 | /* | |
4375 | * PATHCONF request | |
4376 | */ | |
8687b63a | 4377 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) |
1da177e4 LT |
4378 | { |
4379 | struct xdr_stream xdr; | |
4380 | struct compound_hdr hdr; | |
4381 | int status; | |
4382 | ||
4383 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4384 | status = decode_compound_hdr(&xdr, &hdr); | |
4385 | if (!status) | |
4386 | status = decode_putfh(&xdr); | |
4387 | if (!status) | |
4388 | status = decode_pathconf(&xdr, pathconf); | |
4389 | return status; | |
4390 | } | |
4391 | ||
4392 | /* | |
4393 | * STATFS request | |
4394 | */ | |
8687b63a | 4395 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) |
1da177e4 LT |
4396 | { |
4397 | struct xdr_stream xdr; | |
4398 | struct compound_hdr hdr; | |
4399 | int status; | |
4400 | ||
4401 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4402 | status = decode_compound_hdr(&xdr, &hdr); | |
4403 | if (!status) | |
4404 | status = decode_putfh(&xdr); | |
4405 | if (!status) | |
4406 | status = decode_statfs(&xdr, fsstat); | |
4407 | return status; | |
4408 | } | |
4409 | ||
4410 | /* | |
4411 | * GETATTR_BITMAP request | |
4412 | */ | |
8687b63a | 4413 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4414 | { |
4415 | struct xdr_stream xdr; | |
4416 | struct compound_hdr hdr; | |
4417 | int status; | |
4418 | ||
4419 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4420 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4421 | goto out; | |
4422 | if ((status = decode_putfh(&xdr)) != 0) | |
4423 | goto out; | |
4424 | status = decode_server_caps(&xdr, res); | |
4425 | out: | |
4426 | return status; | |
4427 | } | |
4428 | ||
4429 | /* | |
4430 | * Decode RENEW response | |
4431 | */ | |
8687b63a | 4432 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4433 | { |
4434 | struct xdr_stream xdr; | |
4435 | struct compound_hdr hdr; | |
4436 | int status; | |
4437 | ||
4438 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4439 | status = decode_compound_hdr(&xdr, &hdr); | |
4440 | if (!status) | |
4441 | status = decode_renew(&xdr); | |
4442 | return status; | |
4443 | } | |
4444 | ||
4445 | /* | |
4446 | * a SETCLIENTID request | |
4447 | */ | |
8687b63a | 4448 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4449 | struct nfs_client *clp) |
1da177e4 LT |
4450 | { |
4451 | struct xdr_stream xdr; | |
4452 | struct compound_hdr hdr; | |
4453 | int status; | |
4454 | ||
4455 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4456 | status = decode_compound_hdr(&xdr, &hdr); | |
4457 | if (!status) | |
4458 | status = decode_setclientid(&xdr, clp); | |
4459 | if (!status) | |
0a8ea437 | 4460 | status = -nfs4_stat_to_errno(hdr.status); |
1da177e4 LT |
4461 | return status; |
4462 | } | |
4463 | ||
4464 | /* | |
4465 | * a SETCLIENTID_CONFIRM request | |
4466 | */ | |
8687b63a | 4467 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4468 | { |
4469 | struct xdr_stream xdr; | |
4470 | struct compound_hdr hdr; | |
4471 | int status; | |
4472 | ||
4473 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4474 | status = decode_compound_hdr(&xdr, &hdr); | |
4475 | if (!status) | |
4476 | status = decode_setclientid_confirm(&xdr); | |
4477 | if (!status) | |
4478 | status = decode_putrootfh(&xdr); | |
4479 | if (!status) | |
4480 | status = decode_fsinfo(&xdr, fsinfo); | |
4481 | if (!status) | |
0a8ea437 | 4482 | status = -nfs4_stat_to_errno(hdr.status); |
1da177e4 LT |
4483 | return status; |
4484 | } | |
4485 | ||
4486 | /* | |
4487 | * DELEGRETURN request | |
4488 | */ | |
8687b63a | 4489 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4490 | { |
4491 | struct xdr_stream xdr; | |
4492 | struct compound_hdr hdr; | |
4493 | int status; | |
4494 | ||
4495 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4496 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4497 | if (status != 0) |
4498 | goto out; | |
4499 | status = decode_putfh(&xdr); | |
4500 | if (status != 0) | |
4501 | goto out; | |
4502 | status = decode_delegreturn(&xdr); | |
4503 | decode_getfattr(&xdr, res->fattr, res->server); | |
4504 | out: | |
1da177e4 LT |
4505 | return status; |
4506 | } | |
4507 | ||
683b57b4 TM |
4508 | /* |
4509 | * FS_LOCATIONS request | |
4510 | */ | |
8687b63a | 4511 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) |
683b57b4 TM |
4512 | { |
4513 | struct xdr_stream xdr; | |
4514 | struct compound_hdr hdr; | |
4515 | int status; | |
4516 | ||
4517 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4518 | status = decode_compound_hdr(&xdr, &hdr); | |
4519 | if (status != 0) | |
4520 | goto out; | |
4521 | if ((status = decode_putfh(&xdr)) != 0) | |
4522 | goto out; | |
4523 | if ((status = decode_lookup(&xdr)) != 0) | |
4524 | goto out; | |
4525 | xdr_enter_page(&xdr, PAGE_SIZE); | |
4526 | status = decode_getfattr(&xdr, &res->fattr, res->server); | |
4527 | out: | |
4528 | return status; | |
4529 | } | |
4530 | ||
0dbb4c67 | 4531 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4532 | { |
4533 | uint32_t bitmap[2] = {0}; | |
4534 | uint32_t len; | |
4535 | ||
4536 | if (!*p++) { | |
4537 | if (!*p) | |
4538 | return ERR_PTR(-EAGAIN); | |
4539 | entry->eof = 1; | |
4540 | return ERR_PTR(-EBADCOOKIE); | |
4541 | } | |
4542 | ||
4543 | entry->prev_cookie = entry->cookie; | |
4544 | p = xdr_decode_hyper(p, &entry->cookie); | |
4545 | entry->len = ntohl(*p++); | |
4546 | entry->name = (const char *) p; | |
4547 | p += XDR_QUADLEN(entry->len); | |
4548 | ||
4549 | /* | |
4550 | * In case the server doesn't return an inode number, | |
4551 | * we fake one here. (We don't use inode number 0, | |
4552 | * since glibc seems to choke on it...) | |
4553 | */ | |
4554 | entry->ino = 1; | |
4555 | ||
4556 | len = ntohl(*p++); /* bitmap length */ | |
4557 | if (len-- > 0) { | |
4558 | bitmap[0] = ntohl(*p++); | |
4559 | if (len-- > 0) { | |
4560 | bitmap[1] = ntohl(*p++); | |
4561 | p += len; | |
4562 | } | |
4563 | } | |
4564 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4565 | if (len > 0) { | |
97d312d0 MN |
4566 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4567 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4568 | /* Ignore the return value of rdattr_error for now */ | |
4569 | p++; | |
4570 | len--; | |
4571 | } | |
1da177e4 LT |
4572 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4573 | xdr_decode_hyper(p, &entry->ino); | |
4574 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4575 | xdr_decode_hyper(p, &entry->ino); | |
4576 | p += len; | |
4577 | } | |
4578 | ||
4579 | entry->eof = !p[0] && p[1]; | |
4580 | return p; | |
4581 | } | |
4582 | ||
4583 | /* | |
4584 | * We need to translate between nfs status return values and | |
4585 | * the local errno values which may not be the same. | |
4586 | */ | |
4587 | static struct { | |
4588 | int stat; | |
4589 | int errno; | |
4590 | } nfs_errtbl[] = { | |
4591 | { NFS4_OK, 0 }, | |
4592 | { NFS4ERR_PERM, EPERM }, | |
4593 | { NFS4ERR_NOENT, ENOENT }, | |
4594 | { NFS4ERR_IO, errno_NFSERR_IO }, | |
4595 | { NFS4ERR_NXIO, ENXIO }, | |
4596 | { NFS4ERR_ACCESS, EACCES }, | |
4597 | { NFS4ERR_EXIST, EEXIST }, | |
4598 | { NFS4ERR_XDEV, EXDEV }, | |
4599 | { NFS4ERR_NOTDIR, ENOTDIR }, | |
4600 | { NFS4ERR_ISDIR, EISDIR }, | |
4601 | { NFS4ERR_INVAL, EINVAL }, | |
4602 | { NFS4ERR_FBIG, EFBIG }, | |
4603 | { NFS4ERR_NOSPC, ENOSPC }, | |
4604 | { NFS4ERR_ROFS, EROFS }, | |
4605 | { NFS4ERR_MLINK, EMLINK }, | |
4606 | { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, | |
4607 | { NFS4ERR_NOTEMPTY, ENOTEMPTY }, | |
4608 | { NFS4ERR_DQUOT, EDQUOT }, | |
4609 | { NFS4ERR_STALE, ESTALE }, | |
4610 | { NFS4ERR_BADHANDLE, EBADHANDLE }, | |
6ebf3656 MN |
4611 | { NFS4ERR_BADOWNER, EINVAL }, |
4612 | { NFS4ERR_BADNAME, EINVAL }, | |
1da177e4 LT |
4613 | { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, |
4614 | { NFS4ERR_NOTSUPP, ENOTSUPP }, | |
4615 | { NFS4ERR_TOOSMALL, ETOOSMALL }, | |
4616 | { NFS4ERR_SERVERFAULT, ESERVERFAULT }, | |
4617 | { NFS4ERR_BADTYPE, EBADTYPE }, | |
4618 | { NFS4ERR_LOCKED, EAGAIN }, | |
4619 | { NFS4ERR_RESOURCE, EREMOTEIO }, | |
4620 | { NFS4ERR_SYMLINK, ELOOP }, | |
4621 | { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, | |
4622 | { NFS4ERR_DEADLOCK, EDEADLK }, | |
4623 | { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs | |
4624 | * to be handled by a | |
4625 | * middle-layer. | |
4626 | */ | |
4627 | { -1, EIO } | |
4628 | }; | |
4629 | ||
4630 | /* | |
4631 | * Convert an NFS error code to a local one. | |
4632 | * This one is used jointly by NFSv2 and NFSv3. | |
4633 | */ | |
4634 | static int | |
0a8ea437 | 4635 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4636 | { |
4637 | int i; | |
4638 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4639 | if (nfs_errtbl[i].stat == stat) | |
4640 | return nfs_errtbl[i].errno; | |
4641 | } | |
4642 | if (stat <= 10000 || stat > 10100) { | |
4643 | /* The server is looney tunes. */ | |
4644 | return ESERVERFAULT; | |
4645 | } | |
4646 | /* If we cannot translate the error, the recovery routines should | |
4647 | * handle it. | |
4648 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4649 | * not conflict with native Linux error codes. | |
4650 | */ | |
4651 | return stat; | |
4652 | } | |
4653 | ||
1da177e4 LT |
4654 | #define PROC(proc, argtype, restype) \ |
4655 | [NFSPROC4_CLNT_##proc] = { \ | |
4656 | .p_proc = NFSPROC4_COMPOUND, \ | |
4657 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4658 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4659 | .p_arglen = NFS4_##argtype##_sz, \ |
4660 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4661 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4662 | .p_name = #proc, \ | |
1da177e4 LT |
4663 | } |
4664 | ||
4665 | struct rpc_procinfo nfs4_procedures[] = { | |
4666 | PROC(READ, enc_read, dec_read), | |
4667 | PROC(WRITE, enc_write, dec_write), | |
4668 | PROC(COMMIT, enc_commit, dec_commit), | |
4669 | PROC(OPEN, enc_open, dec_open), | |
4670 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4671 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4672 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4673 | PROC(CLOSE, enc_close, dec_close), | |
4674 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4675 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4676 | PROC(RENEW, enc_renew, dec_renew), | |
4677 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4678 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4679 | PROC(LOCK, enc_lock, dec_lock), | |
4680 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4681 | PROC(LOCKU, enc_locku, dec_locku), | |
4682 | PROC(ACCESS, enc_access, dec_access), | |
4683 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4684 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4685 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4686 | PROC(REMOVE, enc_remove, dec_remove), | |
4687 | PROC(RENAME, enc_rename, dec_rename), | |
4688 | PROC(LINK, enc_link, dec_link), | |
4689 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4690 | PROC(CREATE, enc_create, dec_create), | |
4691 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4692 | PROC(STATFS, enc_statfs, dec_statfs), | |
4693 | PROC(READLINK, enc_readlink, dec_readlink), | |
4694 | PROC(READDIR, enc_readdir, dec_readdir), | |
4695 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4696 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4697 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4698 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4699 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4700 | }; |
4701 | ||
4702 | struct rpc_version nfs_version4 = { | |
4703 | .number = 4, | |
e8c96f8c | 4704 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4705 | .procs = nfs4_procedures |
4706 | }; | |
4707 | ||
4708 | /* | |
4709 | * Local variables: | |
4710 | * c-basic-offset: 8 | |
4711 | * End: | |
4712 | */ |