Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/nfs/nfs4xdr.c | |
3 | * | |
4 | * Client-side XDR for NFSv4. | |
5 | * | |
6 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
7 | * All rights reserved. | |
8 | * | |
9 | * Kendrick Smith <kmsmith@umich.edu> | |
10 | * Andy Adamson <andros@umich.edu> | |
6c0195a4 | 11 | * |
1da177e4 LT |
12 | * Redistribution and use in source and binary forms, with or without |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * 1. Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * 2. Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * 3. Neither the name of the University nor the names of its | |
22 | * contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
26 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
27 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
28 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
32 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
33 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
34 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #include <linux/param.h> | |
39 | #include <linux/time.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/slab.h> | |
42 | #include <linux/utsname.h> | |
43 | #include <linux/errno.h> | |
44 | #include <linux/string.h> | |
45 | #include <linux/in.h> | |
46 | #include <linux/pagemap.h> | |
47 | #include <linux/proc_fs.h> | |
48 | #include <linux/kdev_t.h> | |
49 | #include <linux/sunrpc/clnt.h> | |
50 | #include <linux/nfs.h> | |
51 | #include <linux/nfs4.h> | |
52 | #include <linux/nfs_fs.h> | |
53 | #include <linux/nfs_idmap.h> | |
4ce79717 | 54 | #include "nfs4_fs.h" |
1da177e4 LT |
55 | |
56 | #define NFSDBG_FACILITY NFSDBG_XDR | |
57 | ||
58 | /* Mapping from NFS error code to "errno" error code. */ | |
59 | #define errno_NFSERR_IO EIO | |
60 | ||
0a8ea437 | 61 | static int nfs4_stat_to_errno(int); |
1da177e4 LT |
62 | |
63 | /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ | |
64 | #ifdef DEBUG | |
65 | #define NFS4_MAXTAGLEN 20 | |
66 | #else | |
67 | #define NFS4_MAXTAGLEN 0 | |
68 | #endif | |
69 | ||
6c0195a4 | 70 | /* lock,open owner id: |
9f958ab8 | 71 | * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) |
1da177e4 | 72 | */ |
9f958ab8 TM |
73 | #define open_owner_id_maxsz (1 + 4) |
74 | #define lock_owner_id_maxsz (1 + 4) | |
9104a55d | 75 | #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
1da177e4 LT |
76 | #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) |
77 | #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) | |
78 | #define op_encode_hdr_maxsz (1) | |
79 | #define op_decode_hdr_maxsz (2) | |
9104a55d TM |
80 | #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) |
81 | #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
82 | #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
83 | #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1da177e4 LT |
84 | #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ |
85 | (NFS4_FHSIZE >> 2)) | |
86 | #define decode_putfh_maxsz (op_decode_hdr_maxsz) | |
87 | #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) | |
88 | #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) | |
89 | #define encode_getfh_maxsz (op_encode_hdr_maxsz) | |
90 | #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ | |
91 | ((3+NFS4_FHSIZE) >> 2)) | |
96928206 BF |
92 | #define nfs4_fattr_bitmap_maxsz 3 |
93 | #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) | |
1da177e4 LT |
94 | #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) |
95 | #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) | |
bd625ba8 TM |
96 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) |
97 | #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
96928206 BF |
98 | /* This is based on getfattr, which uses the most attributes: */ |
99 | #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ | |
bd625ba8 | 100 | 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) |
96928206 BF |
101 | #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ |
102 | nfs4_fattr_value_maxsz) | |
103 | #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) | |
9104a55d TM |
104 | #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ |
105 | 1 + 2 + 1 + \ | |
106 | nfs4_owner_maxsz + \ | |
107 | nfs4_group_maxsz + \ | |
108 | 4 + 4) | |
1da177e4 LT |
109 | #define encode_savefh_maxsz (op_encode_hdr_maxsz) |
110 | #define decode_savefh_maxsz (op_decode_hdr_maxsz) | |
56ae19f3 TM |
111 | #define encode_restorefh_maxsz (op_encode_hdr_maxsz) |
112 | #define decode_restorefh_maxsz (op_decode_hdr_maxsz) | |
2f42b5d0 | 113 | #define encode_fsinfo_maxsz (encode_getattr_maxsz) |
1da177e4 LT |
114 | #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) |
115 | #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) | |
116 | #define decode_renew_maxsz (op_decode_hdr_maxsz) | |
117 | #define encode_setclientid_maxsz \ | |
118 | (op_encode_hdr_maxsz + \ | |
cc38bac3 CL |
119 | XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ |
120 | XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ | |
121 | 1 /* sc_prog */ + \ | |
122 | XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ | |
123 | XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ | |
124 | 1) /* sc_cb_ident */ | |
1da177e4 LT |
125 | #define decode_setclientid_maxsz \ |
126 | (op_decode_hdr_maxsz + \ | |
127 | 2 + \ | |
128 | 1024) /* large value for CLID_INUSE */ | |
129 | #define encode_setclientid_confirm_maxsz \ | |
130 | (op_encode_hdr_maxsz + \ | |
131 | 3 + (NFS4_VERIFIER_SIZE >> 2)) | |
132 | #define decode_setclientid_confirm_maxsz \ | |
133 | (op_decode_hdr_maxsz) | |
e6889620 TM |
134 | #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) |
135 | #define decode_lookup_maxsz (op_decode_hdr_maxsz) | |
2cebf828 TM |
136 | #define encode_share_access_maxsz \ |
137 | (2) | |
9104a55d | 138 | #define encode_createmode_maxsz (1 + encode_attrs_maxsz) |
2cebf828 TM |
139 | #define encode_opentype_maxsz (1 + encode_createmode_maxsz) |
140 | #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) | |
141 | #define encode_open_maxsz (op_encode_hdr_maxsz + \ | |
142 | 2 + encode_share_access_maxsz + 2 + \ | |
143 | open_owner_id_maxsz + \ | |
144 | encode_opentype_maxsz + \ | |
145 | encode_claim_null_maxsz) | |
146 | #define decode_ace_maxsz (3 + nfs4_owner_maxsz) | |
9104a55d | 147 | #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ |
2cebf828 TM |
148 | decode_ace_maxsz) |
149 | #define decode_change_info_maxsz (5) | |
150 | #define decode_open_maxsz (op_decode_hdr_maxsz + \ | |
9104a55d | 151 | decode_stateid_maxsz + \ |
2cebf828 TM |
152 | decode_change_info_maxsz + 1 + \ |
153 | nfs4_fattr_bitmap_maxsz + \ | |
154 | decode_delegation_maxsz) | |
9104a55d TM |
155 | #define encode_open_confirm_maxsz \ |
156 | (op_encode_hdr_maxsz + \ | |
157 | encode_stateid_maxsz + 1) | |
158 | #define decode_open_confirm_maxsz \ | |
159 | (op_decode_hdr_maxsz + \ | |
160 | decode_stateid_maxsz) | |
161 | #define encode_open_downgrade_maxsz \ | |
162 | (op_encode_hdr_maxsz + \ | |
163 | encode_stateid_maxsz + 1 + \ | |
164 | encode_share_access_maxsz) | |
165 | #define decode_open_downgrade_maxsz \ | |
166 | (op_decode_hdr_maxsz + \ | |
167 | decode_stateid_maxsz) | |
168 | #define encode_close_maxsz (op_encode_hdr_maxsz + \ | |
169 | 1 + encode_stateid_maxsz) | |
170 | #define decode_close_maxsz (op_decode_hdr_maxsz + \ | |
171 | decode_stateid_maxsz) | |
172 | #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ | |
173 | encode_stateid_maxsz + \ | |
174 | encode_attrs_maxsz) | |
175 | #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ | |
176 | nfs4_fattr_bitmap_maxsz) | |
177 | #define encode_read_maxsz (op_encode_hdr_maxsz + \ | |
178 | encode_stateid_maxsz + 3) | |
179 | #define decode_read_maxsz (op_decode_hdr_maxsz + 2) | |
180 | #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ | |
181 | 2 + encode_verifier_maxsz + 5) | |
182 | #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ | |
183 | decode_verifier_maxsz) | |
184 | #define encode_readlink_maxsz (op_encode_hdr_maxsz) | |
185 | #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) | |
186 | #define encode_write_maxsz (op_encode_hdr_maxsz + \ | |
187 | encode_stateid_maxsz + 4) | |
188 | #define decode_write_maxsz (op_decode_hdr_maxsz + \ | |
189 | 2 + decode_verifier_maxsz) | |
190 | #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) | |
191 | #define decode_commit_maxsz (op_decode_hdr_maxsz + \ | |
192 | decode_verifier_maxsz) | |
1da177e4 LT |
193 | #define encode_remove_maxsz (op_encode_hdr_maxsz + \ |
194 | nfs4_name_maxsz) | |
195 | #define encode_rename_maxsz (op_encode_hdr_maxsz + \ | |
196 | 2 * nfs4_name_maxsz) | |
197 | #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) | |
198 | #define encode_link_maxsz (op_encode_hdr_maxsz + \ | |
199 | nfs4_name_maxsz) | |
200 | #define decode_link_maxsz (op_decode_hdr_maxsz + 5) | |
9104a55d TM |
201 | #define encode_lock_maxsz (op_encode_hdr_maxsz + \ |
202 | 7 + \ | |
203 | 1 + encode_stateid_maxsz + 8) | |
204 | #define decode_lock_denied_maxsz \ | |
205 | (8 + decode_lockowner_maxsz) | |
206 | #define decode_lock_maxsz (op_decode_hdr_maxsz + \ | |
207 | decode_lock_denied_maxsz) | |
208 | #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) | |
209 | #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ | |
210 | decode_lock_denied_maxsz) | |
211 | #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ | |
212 | encode_stateid_maxsz + \ | |
213 | 4) | |
214 | #define decode_locku_maxsz (op_decode_hdr_maxsz + \ | |
215 | decode_stateid_maxsz) | |
216 | #define encode_access_maxsz (op_encode_hdr_maxsz + 1) | |
217 | #define decode_access_maxsz (op_decode_hdr_maxsz + 2) | |
1da177e4 LT |
218 | #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ |
219 | 1 + nfs4_name_maxsz + \ | |
94a6d753 | 220 | 1 + \ |
96928206 | 221 | nfs4_fattr_maxsz) |
1da177e4 LT |
222 | #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) |
223 | #define encode_create_maxsz (op_encode_hdr_maxsz + \ | |
9104a55d TM |
224 | 1 + 2 + nfs4_name_maxsz + \ |
225 | encode_attrs_maxsz) | |
2cebf828 TM |
226 | #define decode_create_maxsz (op_decode_hdr_maxsz + \ |
227 | decode_change_info_maxsz + \ | |
228 | nfs4_fattr_bitmap_maxsz) | |
9104a55d TM |
229 | #define encode_statfs_maxsz (encode_getattr_maxsz) |
230 | #define decode_statfs_maxsz (decode_getattr_maxsz) | |
1da177e4 LT |
231 | #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) |
232 | #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) | |
9104a55d TM |
233 | #define encode_getacl_maxsz (encode_getattr_maxsz) |
234 | #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ | |
235 | nfs4_fattr_bitmap_maxsz + 1) | |
236 | #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ | |
237 | encode_stateid_maxsz + 3) | |
238 | #define decode_setacl_maxsz (decode_setattr_maxsz) | |
e6889620 TM |
239 | #define encode_fs_locations_maxsz \ |
240 | (encode_getattr_maxsz) | |
241 | #define decode_fs_locations_maxsz \ | |
242 | (0) | |
1da177e4 LT |
243 | #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ |
244 | #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ | |
245 | #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ | |
246 | encode_putfh_maxsz + \ | |
9104a55d | 247 | encode_read_maxsz) |
1da177e4 LT |
248 | #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ |
249 | decode_putfh_maxsz + \ | |
9104a55d | 250 | decode_read_maxsz) |
1da177e4 LT |
251 | #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ |
252 | encode_putfh_maxsz + \ | |
9104a55d | 253 | encode_readlink_maxsz) |
1da177e4 LT |
254 | #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ |
255 | decode_putfh_maxsz + \ | |
9104a55d | 256 | decode_readlink_maxsz) |
1da177e4 LT |
257 | #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ |
258 | encode_putfh_maxsz + \ | |
9104a55d | 259 | encode_readdir_maxsz) |
1da177e4 LT |
260 | #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ |
261 | decode_putfh_maxsz + \ | |
9104a55d | 262 | decode_readdir_maxsz) |
1da177e4 LT |
263 | #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ |
264 | encode_putfh_maxsz + \ | |
9104a55d | 265 | encode_write_maxsz + \ |
4f9838c7 | 266 | encode_getattr_maxsz) |
1da177e4 LT |
267 | #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ |
268 | decode_putfh_maxsz + \ | |
9104a55d | 269 | decode_write_maxsz + \ |
4f9838c7 | 270 | decode_getattr_maxsz) |
1da177e4 LT |
271 | #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ |
272 | encode_putfh_maxsz + \ | |
9104a55d | 273 | encode_commit_maxsz + \ |
4f9838c7 | 274 | encode_getattr_maxsz) |
1da177e4 LT |
275 | #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ |
276 | decode_putfh_maxsz + \ | |
9104a55d | 277 | decode_commit_maxsz + \ |
4f9838c7 | 278 | decode_getattr_maxsz) |
1da177e4 | 279 | #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ |
2cebf828 TM |
280 | encode_putfh_maxsz + \ |
281 | encode_savefh_maxsz + \ | |
282 | encode_open_maxsz + \ | |
283 | encode_getfh_maxsz + \ | |
284 | encode_getattr_maxsz + \ | |
285 | encode_restorefh_maxsz + \ | |
286 | encode_getattr_maxsz) | |
1da177e4 | 287 | #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ |
2cebf828 TM |
288 | decode_putfh_maxsz + \ |
289 | decode_savefh_maxsz + \ | |
290 | decode_open_maxsz + \ | |
291 | decode_getfh_maxsz + \ | |
292 | decode_getattr_maxsz + \ | |
293 | decode_restorefh_maxsz + \ | |
294 | decode_getattr_maxsz) | |
9104a55d TM |
295 | #define NFS4_enc_open_confirm_sz \ |
296 | (compound_encode_hdr_maxsz + \ | |
297 | encode_putfh_maxsz + \ | |
298 | encode_open_confirm_maxsz) | |
299 | #define NFS4_dec_open_confirm_sz \ | |
300 | (compound_decode_hdr_maxsz + \ | |
301 | decode_putfh_maxsz + \ | |
302 | decode_open_confirm_maxsz) | |
1da177e4 LT |
303 | #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ |
304 | encode_putfh_maxsz + \ | |
2cebf828 TM |
305 | encode_open_maxsz + \ |
306 | encode_getattr_maxsz) | |
1da177e4 LT |
307 | #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ |
308 | decode_putfh_maxsz + \ | |
2cebf828 TM |
309 | decode_open_maxsz + \ |
310 | decode_getattr_maxsz) | |
1da177e4 LT |
311 | #define NFS4_enc_open_downgrade_sz \ |
312 | (compound_encode_hdr_maxsz + \ | |
9104a55d TM |
313 | encode_putfh_maxsz + \ |
314 | encode_open_downgrade_maxsz + \ | |
315 | encode_getattr_maxsz) | |
1da177e4 LT |
316 | #define NFS4_dec_open_downgrade_sz \ |
317 | (compound_decode_hdr_maxsz + \ | |
9104a55d TM |
318 | decode_putfh_maxsz + \ |
319 | decode_open_downgrade_maxsz + \ | |
320 | decode_getattr_maxsz) | |
321 | #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ | |
322 | encode_putfh_maxsz + \ | |
323 | encode_close_maxsz + \ | |
324 | encode_getattr_maxsz) | |
325 | #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ | |
326 | decode_putfh_maxsz + \ | |
327 | decode_close_maxsz + \ | |
328 | decode_getattr_maxsz) | |
329 | #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ | |
330 | encode_putfh_maxsz + \ | |
331 | encode_setattr_maxsz + \ | |
332 | encode_getattr_maxsz) | |
333 | #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ | |
334 | decode_putfh_maxsz + \ | |
335 | decode_setattr_maxsz + \ | |
336 | decode_getattr_maxsz) | |
1da177e4 LT |
337 | #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ |
338 | encode_putfh_maxsz + \ | |
339 | encode_fsinfo_maxsz) | |
340 | #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ | |
341 | decode_putfh_maxsz + \ | |
342 | decode_fsinfo_maxsz) | |
343 | #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ | |
344 | encode_renew_maxsz) | |
345 | #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ | |
346 | decode_renew_maxsz) | |
347 | #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ | |
348 | encode_setclientid_maxsz) | |
349 | #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ | |
350 | decode_setclientid_maxsz) | |
351 | #define NFS4_enc_setclientid_confirm_sz \ | |
352 | (compound_encode_hdr_maxsz + \ | |
353 | encode_setclientid_confirm_maxsz + \ | |
354 | encode_putrootfh_maxsz + \ | |
355 | encode_fsinfo_maxsz) | |
356 | #define NFS4_dec_setclientid_confirm_sz \ | |
357 | (compound_decode_hdr_maxsz + \ | |
358 | decode_setclientid_confirm_maxsz + \ | |
359 | decode_putrootfh_maxsz + \ | |
360 | decode_fsinfo_maxsz) | |
361 | #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ | |
362 | encode_putfh_maxsz + \ | |
9104a55d | 363 | encode_lock_maxsz) |
1da177e4 LT |
364 | #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ |
365 | decode_putfh_maxsz + \ | |
9104a55d | 366 | decode_lock_maxsz) |
1da177e4 LT |
367 | #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ |
368 | encode_putfh_maxsz + \ | |
9104a55d TM |
369 | encode_lockt_maxsz) |
370 | #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ | |
371 | decode_putfh_maxsz + \ | |
372 | decode_lockt_maxsz) | |
1da177e4 LT |
373 | #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ |
374 | encode_putfh_maxsz + \ | |
9104a55d | 375 | encode_locku_maxsz) |
1da177e4 LT |
376 | #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ |
377 | decode_putfh_maxsz + \ | |
9104a55d | 378 | decode_locku_maxsz) |
1da177e4 LT |
379 | #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ |
380 | encode_putfh_maxsz + \ | |
76b32999 TM |
381 | encode_access_maxsz + \ |
382 | encode_getattr_maxsz) | |
1da177e4 LT |
383 | #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ |
384 | decode_putfh_maxsz + \ | |
76b32999 TM |
385 | decode_access_maxsz + \ |
386 | decode_getattr_maxsz) | |
1da177e4 LT |
387 | #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ |
388 | encode_putfh_maxsz + \ | |
389 | encode_getattr_maxsz) | |
390 | #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ | |
391 | decode_putfh_maxsz + \ | |
392 | decode_getattr_maxsz) | |
393 | #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ | |
394 | encode_putfh_maxsz + \ | |
395 | encode_lookup_maxsz + \ | |
396 | encode_getattr_maxsz + \ | |
397 | encode_getfh_maxsz) | |
398 | #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ | |
399 | decode_putfh_maxsz + \ | |
e6889620 | 400 | decode_lookup_maxsz + \ |
1da177e4 LT |
401 | decode_getattr_maxsz + \ |
402 | decode_getfh_maxsz) | |
403 | #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ | |
404 | encode_putrootfh_maxsz + \ | |
405 | encode_getattr_maxsz + \ | |
406 | encode_getfh_maxsz) | |
407 | #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ | |
408 | decode_putrootfh_maxsz + \ | |
409 | decode_getattr_maxsz + \ | |
410 | decode_getfh_maxsz) | |
411 | #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ | |
412 | encode_putfh_maxsz + \ | |
16e42959 TM |
413 | encode_remove_maxsz + \ |
414 | encode_getattr_maxsz) | |
1da177e4 LT |
415 | #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ |
416 | decode_putfh_maxsz + \ | |
16e42959 TM |
417 | op_decode_hdr_maxsz + 5 + \ |
418 | decode_getattr_maxsz) | |
1da177e4 LT |
419 | #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ |
420 | encode_putfh_maxsz + \ | |
421 | encode_savefh_maxsz + \ | |
422 | encode_putfh_maxsz + \ | |
6caf2c82 TM |
423 | encode_rename_maxsz + \ |
424 | encode_getattr_maxsz + \ | |
425 | encode_restorefh_maxsz + \ | |
426 | encode_getattr_maxsz) | |
1da177e4 LT |
427 | #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ |
428 | decode_putfh_maxsz + \ | |
429 | decode_savefh_maxsz + \ | |
430 | decode_putfh_maxsz + \ | |
6caf2c82 TM |
431 | decode_rename_maxsz + \ |
432 | decode_getattr_maxsz + \ | |
433 | decode_restorefh_maxsz + \ | |
434 | decode_getattr_maxsz) | |
1da177e4 LT |
435 | #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ |
436 | encode_putfh_maxsz + \ | |
437 | encode_savefh_maxsz + \ | |
438 | encode_putfh_maxsz + \ | |
91ba2eee TM |
439 | encode_link_maxsz + \ |
440 | decode_getattr_maxsz + \ | |
441 | encode_restorefh_maxsz + \ | |
442 | decode_getattr_maxsz) | |
1da177e4 LT |
443 | #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ |
444 | decode_putfh_maxsz + \ | |
445 | decode_savefh_maxsz + \ | |
446 | decode_putfh_maxsz + \ | |
91ba2eee TM |
447 | decode_link_maxsz + \ |
448 | decode_getattr_maxsz + \ | |
449 | decode_restorefh_maxsz + \ | |
450 | decode_getattr_maxsz) | |
1da177e4 LT |
451 | #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ |
452 | encode_putfh_maxsz + \ | |
453 | encode_symlink_maxsz + \ | |
454 | encode_getattr_maxsz + \ | |
455 | encode_getfh_maxsz) | |
456 | #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ | |
457 | decode_putfh_maxsz + \ | |
458 | decode_symlink_maxsz + \ | |
459 | decode_getattr_maxsz + \ | |
460 | decode_getfh_maxsz) | |
461 | #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ | |
462 | encode_putfh_maxsz + \ | |
56ae19f3 | 463 | encode_savefh_maxsz + \ |
1da177e4 | 464 | encode_create_maxsz + \ |
56ae19f3 | 465 | encode_getfh_maxsz + \ |
1da177e4 | 466 | encode_getattr_maxsz + \ |
56ae19f3 TM |
467 | encode_restorefh_maxsz + \ |
468 | encode_getattr_maxsz) | |
1da177e4 LT |
469 | #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ |
470 | decode_putfh_maxsz + \ | |
56ae19f3 | 471 | decode_savefh_maxsz + \ |
1da177e4 | 472 | decode_create_maxsz + \ |
56ae19f3 | 473 | decode_getfh_maxsz + \ |
1da177e4 | 474 | decode_getattr_maxsz + \ |
56ae19f3 TM |
475 | decode_restorefh_maxsz + \ |
476 | decode_getattr_maxsz) | |
1da177e4 LT |
477 | #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ |
478 | encode_putfh_maxsz + \ | |
479 | encode_getattr_maxsz) | |
480 | #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ | |
481 | decode_putfh_maxsz + \ | |
482 | decode_getattr_maxsz) | |
483 | #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ | |
484 | encode_putfh_maxsz + \ | |
9104a55d | 485 | encode_statfs_maxsz) |
1da177e4 LT |
486 | #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ |
487 | decode_putfh_maxsz + \ | |
9104a55d | 488 | decode_statfs_maxsz) |
1da177e4 | 489 | #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ |
ab91f264 | 490 | encode_putfh_maxsz + \ |
1da177e4 LT |
491 | encode_getattr_maxsz) |
492 | #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ | |
ab91f264 | 493 | decode_putfh_maxsz + \ |
1da177e4 LT |
494 | decode_getattr_maxsz) |
495 | #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ | |
496 | encode_putfh_maxsz + \ | |
fa178f29 TM |
497 | encode_delegreturn_maxsz + \ |
498 | encode_getattr_maxsz) | |
1da177e4 | 499 | #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ |
fa178f29 TM |
500 | decode_delegreturn_maxsz + \ |
501 | decode_getattr_maxsz) | |
029d105e BF |
502 | #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ |
503 | encode_putfh_maxsz + \ | |
9104a55d | 504 | encode_getacl_maxsz) |
029d105e BF |
505 | #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ |
506 | decode_putfh_maxsz + \ | |
9104a55d | 507 | decode_getacl_maxsz) |
23ec6965 BF |
508 | #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ |
509 | encode_putfh_maxsz + \ | |
9104a55d | 510 | encode_setacl_maxsz) |
23ec6965 BF |
511 | #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ |
512 | decode_putfh_maxsz + \ | |
9104a55d | 513 | decode_setacl_maxsz) |
683b57b4 TM |
514 | #define NFS4_enc_fs_locations_sz \ |
515 | (compound_encode_hdr_maxsz + \ | |
516 | encode_putfh_maxsz + \ | |
e6889620 TM |
517 | encode_lookup_maxsz + \ |
518 | encode_fs_locations_maxsz) | |
683b57b4 TM |
519 | #define NFS4_dec_fs_locations_sz \ |
520 | (compound_decode_hdr_maxsz + \ | |
521 | decode_putfh_maxsz + \ | |
e6889620 TM |
522 | decode_lookup_maxsz + \ |
523 | decode_fs_locations_maxsz) | |
1da177e4 | 524 | |
bca79478 TM |
525 | static const umode_t nfs_type2fmt[] = { |
526 | [NF4BAD] = 0, | |
527 | [NF4REG] = S_IFREG, | |
528 | [NF4DIR] = S_IFDIR, | |
529 | [NF4BLK] = S_IFBLK, | |
530 | [NF4CHR] = S_IFCHR, | |
531 | [NF4LNK] = S_IFLNK, | |
532 | [NF4SOCK] = S_IFSOCK, | |
533 | [NF4FIFO] = S_IFIFO, | |
534 | [NF4ATTRDIR] = 0, | |
535 | [NF4NAMEDATTR] = 0, | |
1da177e4 LT |
536 | }; |
537 | ||
538 | struct compound_hdr { | |
539 | int32_t status; | |
540 | uint32_t nops; | |
d017931c | 541 | __be32 * nops_p; |
1da177e4 LT |
542 | uint32_t taglen; |
543 | char * tag; | |
544 | }; | |
545 | ||
546 | /* | |
547 | * START OF "GENERIC" ENCODE ROUTINES. | |
548 | * These may look a little ugly since they are imported from a "generic" | |
549 | * set of XDR encode/decode routines which are intended to be shared by | |
550 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
551 | * | |
552 | * If the pain of reading these is too great, it should be a straightforward | |
553 | * task to translate them into Linux-specific versions which are more | |
554 | * consistent with the style used in NFSv2/v3... | |
555 | */ | |
556 | #define WRITE32(n) *p++ = htonl(n) | |
557 | #define WRITE64(n) do { \ | |
558 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
559 | *p++ = htonl((uint32_t)(n)); \ | |
560 | } while (0) | |
561 | #define WRITEMEM(ptr,nbytes) do { \ | |
562 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
563 | } while (0) | |
564 | ||
565 | #define RESERVE_SPACE(nbytes) do { \ | |
566 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
567 | BUG_ON(!p); \ |
568 | } while (0) | |
569 | ||
570 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
571 | { | |
8687b63a | 572 | __be32 *p; |
1da177e4 LT |
573 | |
574 | p = xdr_reserve_space(xdr, 4 + len); | |
575 | BUG_ON(p == NULL); | |
576 | xdr_encode_opaque(p, str, len); | |
577 | } | |
578 | ||
d017931c | 579 | static void encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 580 | { |
8687b63a | 581 | __be32 *p; |
1da177e4 LT |
582 | |
583 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
584 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
585 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
586 | WRITE32(hdr->taglen); | |
587 | WRITEMEM(hdr->tag, hdr->taglen); | |
588 | WRITE32(NFS4_MINOR_VERSION); | |
d017931c | 589 | hdr->nops_p = p; |
1da177e4 | 590 | WRITE32(hdr->nops); |
d017931c AA |
591 | } |
592 | ||
593 | static void encode_nops(struct compound_hdr *hdr) | |
594 | { | |
595 | *hdr->nops_p = htonl(hdr->nops); | |
1da177e4 LT |
596 | } |
597 | ||
598 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
599 | { | |
8687b63a | 600 | __be32 *p; |
1da177e4 LT |
601 | |
602 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
603 | BUG_ON(p == NULL); | |
604 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
605 | } | |
606 | ||
cf8cdbe5 | 607 | static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) |
1da177e4 LT |
608 | { |
609 | char owner_name[IDMAP_NAMESZ]; | |
610 | char owner_group[IDMAP_NAMESZ]; | |
611 | int owner_namelen = 0; | |
612 | int owner_grouplen = 0; | |
8687b63a AV |
613 | __be32 *p; |
614 | __be32 *q; | |
1da177e4 LT |
615 | int len; |
616 | uint32_t bmval0 = 0; | |
617 | uint32_t bmval1 = 0; | |
1da177e4 LT |
618 | |
619 | /* | |
620 | * We reserve enough space to write the entire attribute buffer at once. | |
621 | * In the worst-case, this would be | |
622 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
623 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 624 | * such as owner/group. |
1da177e4 LT |
625 | */ |
626 | len = 16; | |
627 | ||
628 | /* Sigh */ | |
629 | if (iap->ia_valid & ATTR_SIZE) | |
630 | len += 8; | |
631 | if (iap->ia_valid & ATTR_MODE) | |
632 | len += 4; | |
633 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 634 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 635 | if (owner_namelen < 0) { |
fe82a183 CL |
636 | dprintk("nfs: couldn't resolve uid %d to string\n", |
637 | iap->ia_uid); | |
1da177e4 LT |
638 | /* XXX */ |
639 | strcpy(owner_name, "nobody"); | |
640 | owner_namelen = sizeof("nobody") - 1; | |
641 | /* goto out; */ | |
642 | } | |
643 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
644 | } | |
645 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 646 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 647 | if (owner_grouplen < 0) { |
fe82a183 CL |
648 | dprintk("nfs: couldn't resolve gid %d to string\n", |
649 | iap->ia_gid); | |
1da177e4 LT |
650 | strcpy(owner_group, "nobody"); |
651 | owner_grouplen = sizeof("nobody") - 1; | |
652 | /* goto out; */ | |
653 | } | |
654 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
655 | } | |
656 | if (iap->ia_valid & ATTR_ATIME_SET) | |
657 | len += 16; | |
658 | else if (iap->ia_valid & ATTR_ATIME) | |
659 | len += 4; | |
660 | if (iap->ia_valid & ATTR_MTIME_SET) | |
661 | len += 16; | |
662 | else if (iap->ia_valid & ATTR_MTIME) | |
663 | len += 4; | |
664 | RESERVE_SPACE(len); | |
665 | ||
666 | /* | |
667 | * We write the bitmap length now, but leave the bitmap and the attribute | |
668 | * buffer length to be backfilled at the end of this routine. | |
669 | */ | |
670 | WRITE32(2); | |
671 | q = p; | |
672 | p += 3; | |
673 | ||
674 | if (iap->ia_valid & ATTR_SIZE) { | |
675 | bmval0 |= FATTR4_WORD0_SIZE; | |
676 | WRITE64(iap->ia_size); | |
677 | } | |
678 | if (iap->ia_valid & ATTR_MODE) { | |
679 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 680 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
681 | } |
682 | if (iap->ia_valid & ATTR_UID) { | |
683 | bmval1 |= FATTR4_WORD1_OWNER; | |
684 | WRITE32(owner_namelen); | |
685 | WRITEMEM(owner_name, owner_namelen); | |
686 | } | |
687 | if (iap->ia_valid & ATTR_GID) { | |
688 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
689 | WRITE32(owner_grouplen); | |
690 | WRITEMEM(owner_group, owner_grouplen); | |
691 | } | |
692 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
693 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
694 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
695 | WRITE32(0); | |
696 | WRITE32(iap->ia_mtime.tv_sec); | |
697 | WRITE32(iap->ia_mtime.tv_nsec); | |
698 | } | |
699 | else if (iap->ia_valid & ATTR_ATIME) { | |
700 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
701 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
702 | } | |
703 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
704 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
705 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
706 | WRITE32(0); | |
707 | WRITE32(iap->ia_mtime.tv_sec); | |
708 | WRITE32(iap->ia_mtime.tv_nsec); | |
709 | } | |
710 | else if (iap->ia_valid & ATTR_MTIME) { | |
711 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
712 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
713 | } | |
6c0195a4 | 714 | |
1da177e4 LT |
715 | /* |
716 | * Now we backfill the bitmap and the attribute buffer length. | |
717 | */ | |
718 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 719 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
720 | len, ((char *)p - (char *)q) + 4); |
721 | BUG(); | |
722 | } | |
723 | len = (char *)p - (char *)q - 12; | |
724 | *q++ = htonl(bmval0); | |
725 | *q++ = htonl(bmval1); | |
726 | *q++ = htonl(len); | |
727 | ||
1da177e4 | 728 | /* out: */ |
1da177e4 LT |
729 | } |
730 | ||
cf8cdbe5 | 731 | static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 732 | { |
8687b63a | 733 | __be32 *p; |
1da177e4 LT |
734 | |
735 | RESERVE_SPACE(8); | |
736 | WRITE32(OP_ACCESS); | |
737 | WRITE32(access); | |
d017931c | 738 | hdr->nops++; |
1da177e4 LT |
739 | } |
740 | ||
cf8cdbe5 | 741 | static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 742 | { |
8687b63a | 743 | __be32 *p; |
1da177e4 | 744 | |
8ae20abd | 745 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 746 | WRITE32(OP_CLOSE); |
cee54fc9 | 747 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 748 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 749 | hdr->nops++; |
1da177e4 LT |
750 | } |
751 | ||
cf8cdbe5 | 752 | static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 753 | { |
8687b63a | 754 | __be32 *p; |
6c0195a4 | 755 | |
05d564fe AA |
756 | RESERVE_SPACE(16); |
757 | WRITE32(OP_COMMIT); | |
758 | WRITE64(args->offset); | |
759 | WRITE32(args->count); | |
d017931c | 760 | hdr->nops++; |
1da177e4 LT |
761 | } |
762 | ||
cf8cdbe5 | 763 | static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 764 | { |
8687b63a | 765 | __be32 *p; |
6c0195a4 | 766 | |
1da177e4 LT |
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); | |
d017931c | 791 | hdr->nops++; |
1da177e4 | 792 | |
cf8cdbe5 | 793 | encode_attrs(xdr, create->attrs, create->server); |
1da177e4 LT |
794 | } |
795 | ||
cf8cdbe5 | 796 | static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 797 | { |
05d564fe | 798 | __be32 *p; |
1da177e4 | 799 | |
05d564fe AA |
800 | RESERVE_SPACE(12); |
801 | WRITE32(OP_GETATTR); | |
802 | WRITE32(1); | |
803 | WRITE32(bitmap); | |
d017931c | 804 | hdr->nops++; |
1da177e4 LT |
805 | } |
806 | ||
cf8cdbe5 | 807 | static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 808 | { |
05d564fe | 809 | __be32 *p; |
1da177e4 | 810 | |
05d564fe AA |
811 | RESERVE_SPACE(16); |
812 | WRITE32(OP_GETATTR); | |
813 | WRITE32(2); | |
814 | WRITE32(bm0); | |
815 | WRITE32(bm1); | |
d017931c | 816 | hdr->nops++; |
1da177e4 LT |
817 | } |
818 | ||
cf8cdbe5 | 819 | static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 820 | { |
cf8cdbe5 AA |
821 | encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], |
822 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); | |
1da177e4 LT |
823 | } |
824 | ||
cf8cdbe5 | 825 | static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 826 | { |
cf8cdbe5 AA |
827 | encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
828 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); | |
1da177e4 LT |
829 | } |
830 | ||
cf8cdbe5 | 831 | static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 | 832 | { |
cf8cdbe5 AA |
833 | encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], |
834 | bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); | |
830b8e33 MN |
835 | } |
836 | ||
cf8cdbe5 | 837 | static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 838 | { |
8687b63a | 839 | __be32 *p; |
1da177e4 LT |
840 | |
841 | RESERVE_SPACE(4); | |
842 | WRITE32(OP_GETFH); | |
d017931c | 843 | hdr->nops++; |
1da177e4 LT |
844 | } |
845 | ||
cf8cdbe5 | 846 | static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 847 | { |
8687b63a | 848 | __be32 *p; |
1da177e4 LT |
849 | |
850 | RESERVE_SPACE(8 + name->len); | |
851 | WRITE32(OP_LINK); | |
852 | WRITE32(name->len); | |
853 | WRITEMEM(name->name, name->len); | |
d017931c | 854 | hdr->nops++; |
1da177e4 LT |
855 | } |
856 | ||
911d1aaf TM |
857 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
858 | { | |
859 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
860 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
861 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
862 | } | |
863 | ||
864 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
865 | { | |
866 | if (fl->fl_end == OFFSET_MAX) | |
867 | return ~(uint64_t)0; | |
868 | return fl->fl_end - fl->fl_start + 1; | |
869 | } | |
870 | ||
1da177e4 LT |
871 | /* |
872 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
873 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
874 | */ | |
cf8cdbe5 | 875 | static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 876 | { |
8687b63a | 877 | __be32 *p; |
1da177e4 LT |
878 | |
879 | RESERVE_SPACE(32); | |
880 | WRITE32(OP_LOCK); | |
911d1aaf TM |
881 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
882 | WRITE32(args->reclaim); | |
883 | WRITE64(args->fl->fl_start); | |
884 | WRITE64(nfs4_lock_length(args->fl)); | |
885 | WRITE32(args->new_lock_owner); | |
886 | if (args->new_lock_owner){ | |
9f958ab8 | 887 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 888 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 889 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
890 | WRITE32(args->lock_seqid->sequence->counter); |
891 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
892 | WRITE32(16); |
893 | WRITEMEM("lock id:", 8); | |
894 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
895 | } |
896 | else { | |
8ae20abd TM |
897 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
898 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 899 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 900 | } |
d017931c | 901 | hdr->nops++; |
1da177e4 LT |
902 | } |
903 | ||
cf8cdbe5 | 904 | static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 905 | { |
8687b63a | 906 | __be32 *p; |
1da177e4 | 907 | |
9f958ab8 | 908 | RESERVE_SPACE(52); |
1da177e4 | 909 | WRITE32(OP_LOCKT); |
911d1aaf TM |
910 | WRITE32(nfs4_lock_type(args->fl, 0)); |
911 | WRITE64(args->fl->fl_start); | |
912 | WRITE64(nfs4_lock_length(args->fl)); | |
913 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
914 | WRITE32(16); |
915 | WRITEMEM("lock id:", 8); | |
916 | WRITE64(args->lock_owner.id); | |
d017931c | 917 | hdr->nops++; |
1da177e4 LT |
918 | } |
919 | ||
cf8cdbe5 | 920 | static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 921 | { |
8687b63a | 922 | __be32 *p; |
1da177e4 | 923 | |
8ae20abd | 924 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 925 | WRITE32(OP_LOCKU); |
911d1aaf TM |
926 | WRITE32(nfs4_lock_type(args->fl, 0)); |
927 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 928 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
929 | WRITE64(args->fl->fl_start); |
930 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 931 | hdr->nops++; |
1da177e4 LT |
932 | } |
933 | ||
cf8cdbe5 | 934 | static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
935 | { |
936 | int len = name->len; | |
8687b63a | 937 | __be32 *p; |
1da177e4 LT |
938 | |
939 | RESERVE_SPACE(8 + len); | |
940 | WRITE32(OP_LOOKUP); | |
941 | WRITE32(len); | |
942 | WRITEMEM(name->name, len); | |
d017931c | 943 | hdr->nops++; |
1da177e4 LT |
944 | } |
945 | ||
dc0b027d | 946 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 947 | { |
8687b63a | 948 | __be32 *p; |
1da177e4 LT |
949 | |
950 | RESERVE_SPACE(8); | |
dc0b027d | 951 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
952 | case FMODE_READ: |
953 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
954 | break; | |
955 | case FMODE_WRITE: | |
956 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
957 | break; | |
958 | case FMODE_READ|FMODE_WRITE: | |
959 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
960 | break; | |
961 | default: | |
962 | WRITE32(0); | |
1da177e4 LT |
963 | } |
964 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
965 | } | |
966 | ||
967 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
968 | { | |
8687b63a | 969 | __be32 *p; |
1da177e4 LT |
970 | /* |
971 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
972 | * owner 4 = 32 | |
973 | */ | |
974 | RESERVE_SPACE(8); | |
975 | WRITE32(OP_OPEN); | |
cee54fc9 | 976 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 977 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 978 | RESERVE_SPACE(28); |
1da177e4 | 979 | WRITE64(arg->clientid); |
9f958ab8 TM |
980 | WRITE32(16); |
981 | WRITEMEM("open id:", 8); | |
982 | WRITE64(arg->id); | |
1da177e4 LT |
983 | } |
984 | ||
985 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
986 | { | |
8687b63a | 987 | __be32 *p; |
1da177e4 LT |
988 | |
989 | RESERVE_SPACE(4); | |
990 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
991 | case 0: |
992 | WRITE32(NFS4_CREATE_UNCHECKED); | |
993 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
994 | break; | |
995 | default: | |
996 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
997 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
998 | } |
999 | } | |
1000 | ||
1001 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1002 | { | |
8687b63a | 1003 | __be32 *p; |
1da177e4 LT |
1004 | |
1005 | RESERVE_SPACE(4); | |
1006 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1007 | case 0: |
1008 | WRITE32(NFS4_OPEN_NOCREATE); | |
1009 | break; | |
1010 | default: | |
1011 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1012 | WRITE32(NFS4_OPEN_CREATE); | |
1013 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1014 | } |
1015 | } | |
1016 | ||
bd7bf9d5 | 1017 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1018 | { |
8687b63a | 1019 | __be32 *p; |
1da177e4 LT |
1020 | |
1021 | RESERVE_SPACE(4); | |
1022 | switch (delegation_type) { | |
05d564fe AA |
1023 | case 0: |
1024 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1025 | break; | |
1026 | case FMODE_READ: | |
1027 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1028 | break; | |
1029 | case FMODE_WRITE|FMODE_READ: | |
1030 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1031 | break; | |
1032 | default: | |
1033 | BUG(); | |
1da177e4 LT |
1034 | } |
1035 | } | |
1036 | ||
1037 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1038 | { | |
8687b63a | 1039 | __be32 *p; |
1da177e4 LT |
1040 | |
1041 | RESERVE_SPACE(4); | |
1042 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1043 | encode_string(xdr, name->len, name->name); | |
1044 | } | |
1045 | ||
bd7bf9d5 | 1046 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1047 | { |
8687b63a | 1048 | __be32 *p; |
1da177e4 LT |
1049 | |
1050 | RESERVE_SPACE(4); | |
1051 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1052 | encode_delegation_type(xdr, type); | |
1053 | } | |
1054 | ||
1055 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1056 | { | |
8687b63a | 1057 | __be32 *p; |
1da177e4 | 1058 | |
8ae20abd | 1059 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1060 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1061 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1062 | encode_string(xdr, name->len, name->name); |
1063 | } | |
1064 | ||
cf8cdbe5 | 1065 | static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1066 | { |
1067 | encode_openhdr(xdr, arg); | |
1068 | encode_opentype(xdr, arg); | |
1069 | switch (arg->claim) { | |
05d564fe AA |
1070 | case NFS4_OPEN_CLAIM_NULL: |
1071 | encode_claim_null(xdr, arg->name); | |
1072 | break; | |
1073 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1074 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1075 | break; | |
1076 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1077 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1078 | break; | |
1079 | default: | |
1080 | BUG(); | |
1da177e4 | 1081 | } |
d017931c | 1082 | hdr->nops++; |
1da177e4 LT |
1083 | } |
1084 | ||
cf8cdbe5 | 1085 | static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1086 | { |
8687b63a | 1087 | __be32 *p; |
1da177e4 | 1088 | |
8ae20abd | 1089 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1090 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1091 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1092 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1093 | hdr->nops++; |
1da177e4 LT |
1094 | } |
1095 | ||
cf8cdbe5 | 1096 | static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1097 | { |
8687b63a | 1098 | __be32 *p; |
1da177e4 | 1099 | |
8ae20abd | 1100 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1101 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1102 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1103 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1104 | encode_share_access(xdr, arg->fmode); |
d017931c | 1105 | hdr->nops++; |
1da177e4 LT |
1106 | } |
1107 | ||
cf8cdbe5 | 1108 | static void |
d017931c | 1109 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1110 | { |
1111 | int len = fh->size; | |
8687b63a | 1112 | __be32 *p; |
1da177e4 LT |
1113 | |
1114 | RESERVE_SPACE(8 + len); | |
1115 | WRITE32(OP_PUTFH); | |
1116 | WRITE32(len); | |
1117 | WRITEMEM(fh->data, len); | |
d017931c | 1118 | hdr->nops++; |
1da177e4 LT |
1119 | } |
1120 | ||
cf8cdbe5 | 1121 | static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1122 | { |
05d564fe | 1123 | __be32 *p; |
6c0195a4 | 1124 | |
05d564fe AA |
1125 | RESERVE_SPACE(4); |
1126 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1127 | hdr->nops++; |
1da177e4 LT |
1128 | } |
1129 | ||
1130 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1131 | { | |
1da177e4 | 1132 | nfs4_stateid stateid; |
8687b63a | 1133 | __be32 *p; |
1da177e4 | 1134 | |
8ae20abd | 1135 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1136 | if (ctx->state != NULL) { |
1137 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1138 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1139 | } else |
8ae20abd | 1140 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1141 | } |
1142 | ||
cf8cdbe5 | 1143 | static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1144 | { |
8687b63a | 1145 | __be32 *p; |
1da177e4 LT |
1146 | |
1147 | RESERVE_SPACE(4); | |
1148 | WRITE32(OP_READ); | |
1149 | ||
1150 | encode_stateid(xdr, args->context); | |
1151 | ||
1152 | RESERVE_SPACE(12); | |
1153 | WRITE64(args->offset); | |
1154 | WRITE32(args->count); | |
d017931c | 1155 | hdr->nops++; |
1da177e4 LT |
1156 | } |
1157 | ||
cf8cdbe5 | 1158 | static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1159 | { |
97d312d0 MN |
1160 | uint32_t attrs[2] = { |
1161 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1162 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1163 | }; | |
8687b63a | 1164 | __be32 *p; |
1da177e4 | 1165 | |
8ae20abd | 1166 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1167 | WRITE32(OP_READDIR); |
1168 | WRITE64(readdir->cookie); | |
8ae20abd | 1169 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1170 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1171 | WRITE32(readdir->count); | |
1172 | WRITE32(2); | |
97d312d0 MN |
1173 | /* Switch to mounted_on_fileid if the server supports it */ |
1174 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1175 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1176 | else | |
1177 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1178 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1179 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1180 | hdr->nops++; |
44109241 FI |
1181 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1182 | __func__, | |
eadf4598 TM |
1183 | (unsigned long long)readdir->cookie, |
1184 | ((u32 *)readdir->verifier.data)[0], | |
1185 | ((u32 *)readdir->verifier.data)[1], | |
1186 | attrs[0] & readdir->bitmask[0], | |
1187 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 LT |
1188 | } |
1189 | ||
cf8cdbe5 | 1190 | static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1191 | { |
8687b63a | 1192 | __be32 *p; |
1da177e4 LT |
1193 | |
1194 | RESERVE_SPACE(4); | |
1195 | WRITE32(OP_READLINK); | |
d017931c | 1196 | hdr->nops++; |
1da177e4 LT |
1197 | } |
1198 | ||
cf8cdbe5 | 1199 | static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1200 | { |
8687b63a | 1201 | __be32 *p; |
1da177e4 LT |
1202 | |
1203 | RESERVE_SPACE(8 + name->len); | |
1204 | WRITE32(OP_REMOVE); | |
1205 | WRITE32(name->len); | |
1206 | WRITEMEM(name->name, name->len); | |
d017931c | 1207 | hdr->nops++; |
1da177e4 LT |
1208 | } |
1209 | ||
cf8cdbe5 | 1210 | static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1211 | { |
8687b63a | 1212 | __be32 *p; |
1da177e4 LT |
1213 | |
1214 | RESERVE_SPACE(8 + oldname->len); | |
1215 | WRITE32(OP_RENAME); | |
1216 | WRITE32(oldname->len); | |
1217 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1218 | |
1da177e4 LT |
1219 | RESERVE_SPACE(4 + newname->len); |
1220 | WRITE32(newname->len); | |
1221 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1222 | hdr->nops++; |
1da177e4 LT |
1223 | } |
1224 | ||
cf8cdbe5 | 1225 | static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1226 | { |
8687b63a | 1227 | __be32 *p; |
1da177e4 LT |
1228 | |
1229 | RESERVE_SPACE(12); | |
1230 | WRITE32(OP_RENEW); | |
1231 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1232 | hdr->nops++; |
1da177e4 LT |
1233 | } |
1234 | ||
cf8cdbe5 | 1235 | static void |
d017931c | 1236 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1237 | { |
8687b63a | 1238 | __be32 *p; |
56ae19f3 TM |
1239 | |
1240 | RESERVE_SPACE(4); | |
1241 | WRITE32(OP_RESTOREFH); | |
d017931c | 1242 | hdr->nops++; |
56ae19f3 TM |
1243 | } |
1244 | ||
23ec6965 | 1245 | static int |
d017931c | 1246 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1247 | { |
8687b63a | 1248 | __be32 *p; |
23ec6965 | 1249 | |
8ae20abd | 1250 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1251 | WRITE32(OP_SETATTR); |
8ae20abd | 1252 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1253 | RESERVE_SPACE(2*4); |
1254 | WRITE32(1); | |
1255 | WRITE32(FATTR4_WORD0_ACL); | |
1256 | if (arg->acl_len % 4) | |
1257 | return -EINVAL; | |
1258 | RESERVE_SPACE(4); | |
1259 | WRITE32(arg->acl_len); | |
1260 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1261 | hdr->nops++; |
23ec6965 BF |
1262 | return 0; |
1263 | } | |
1264 | ||
cf8cdbe5 | 1265 | static void |
d017931c | 1266 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1267 | { |
8687b63a | 1268 | __be32 *p; |
1da177e4 LT |
1269 | |
1270 | RESERVE_SPACE(4); | |
1271 | WRITE32(OP_SAVEFH); | |
d017931c | 1272 | hdr->nops++; |
1da177e4 LT |
1273 | } |
1274 | ||
cf8cdbe5 | 1275 | static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 | 1276 | { |
8687b63a | 1277 | __be32 *p; |
6c0195a4 | 1278 | |
05d564fe AA |
1279 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1280 | WRITE32(OP_SETATTR); | |
8ae20abd | 1281 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1282 | hdr->nops++; |
cf8cdbe5 | 1283 | encode_attrs(xdr, arg->iap, server); |
1da177e4 LT |
1284 | } |
1285 | ||
cf8cdbe5 | 1286 | static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1287 | { |
8687b63a | 1288 | __be32 *p; |
1da177e4 | 1289 | |
8ae20abd | 1290 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1291 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1292 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1293 | |
1294 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1295 | RESERVE_SPACE(4); | |
1296 | WRITE32(setclientid->sc_prog); | |
1297 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1298 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1299 | RESERVE_SPACE(4); | |
1300 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1301 | hdr->nops++; |
1da177e4 LT |
1302 | } |
1303 | ||
cf8cdbe5 | 1304 | static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1305 | { |
05d564fe | 1306 | __be32 *p; |
1da177e4 | 1307 | |
05d564fe AA |
1308 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1309 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1310 | WRITE64(client_state->cl_clientid); | |
1311 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1312 | hdr->nops++; |
1da177e4 LT |
1313 | } |
1314 | ||
cf8cdbe5 | 1315 | static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1316 | { |
8687b63a | 1317 | __be32 *p; |
1da177e4 LT |
1318 | |
1319 | RESERVE_SPACE(4); | |
1320 | WRITE32(OP_WRITE); | |
1321 | ||
1322 | encode_stateid(xdr, args->context); | |
1323 | ||
1324 | RESERVE_SPACE(16); | |
1325 | WRITE64(args->offset); | |
1326 | WRITE32(args->stable); | |
1327 | WRITE32(args->count); | |
1328 | ||
1329 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1330 | hdr->nops++; |
1da177e4 LT |
1331 | } |
1332 | ||
cf8cdbe5 | 1333 | static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1334 | { |
8687b63a | 1335 | __be32 *p; |
1da177e4 | 1336 | |
8ae20abd | 1337 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1338 | |
1339 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1340 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1341 | hdr->nops++; |
1da177e4 LT |
1342 | } |
1343 | /* | |
1344 | * END OF "GENERIC" ENCODE ROUTINES. | |
1345 | */ | |
1346 | ||
1347 | /* | |
1348 | * Encode an ACCESS request | |
1349 | */ | |
8687b63a | 1350 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1351 | { |
1352 | struct xdr_stream xdr; | |
1353 | struct compound_hdr hdr = { | |
d017931c | 1354 | .nops = 0, |
1da177e4 | 1355 | }; |
1da177e4 LT |
1356 | |
1357 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1358 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1359 | encode_putfh(&xdr, args->fh, &hdr); |
1360 | encode_access(&xdr, args->access, &hdr); | |
1361 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1362 | encode_nops(&hdr); |
cf8cdbe5 | 1363 | return 0; |
1da177e4 LT |
1364 | } |
1365 | ||
1366 | /* | |
1367 | * Encode LOOKUP request | |
1368 | */ | |
8687b63a | 1369 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1370 | { |
1371 | struct xdr_stream xdr; | |
1372 | struct compound_hdr hdr = { | |
d017931c | 1373 | .nops = 0, |
1da177e4 | 1374 | }; |
1da177e4 LT |
1375 | |
1376 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1377 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1378 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1379 | encode_lookup(&xdr, args->name, &hdr); | |
1380 | encode_getfh(&xdr, &hdr); | |
1381 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1382 | encode_nops(&hdr); |
cf8cdbe5 | 1383 | return 0; |
1da177e4 LT |
1384 | } |
1385 | ||
1386 | /* | |
1387 | * Encode LOOKUP_ROOT request | |
1388 | */ | |
8687b63a | 1389 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1390 | { |
1391 | struct xdr_stream xdr; | |
1392 | struct compound_hdr hdr = { | |
d017931c | 1393 | .nops = 0, |
1da177e4 | 1394 | }; |
1da177e4 LT |
1395 | |
1396 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1397 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1398 | encode_putrootfh(&xdr, &hdr); |
1399 | encode_getfh(&xdr, &hdr); | |
1400 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1401 | encode_nops(&hdr); |
cf8cdbe5 | 1402 | return 0; |
1da177e4 LT |
1403 | } |
1404 | ||
1405 | /* | |
1406 | * Encode REMOVE request | |
1407 | */ | |
4fdc17b2 | 1408 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1409 | { |
1410 | struct xdr_stream xdr; | |
1411 | struct compound_hdr hdr = { | |
d017931c | 1412 | .nops = 0, |
1da177e4 | 1413 | }; |
1da177e4 LT |
1414 | |
1415 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1416 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1417 | encode_putfh(&xdr, args->fh, &hdr); |
1418 | encode_remove(&xdr, &args->name, &hdr); | |
1419 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1420 | encode_nops(&hdr); |
cf8cdbe5 | 1421 | return 0; |
1da177e4 LT |
1422 | } |
1423 | ||
1424 | /* | |
1425 | * Encode RENAME request | |
1426 | */ | |
8687b63a | 1427 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1428 | { |
1429 | struct xdr_stream xdr; | |
1430 | struct compound_hdr hdr = { | |
d017931c | 1431 | .nops = 0, |
1da177e4 | 1432 | }; |
1da177e4 LT |
1433 | |
1434 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1435 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1436 | encode_putfh(&xdr, args->old_dir, &hdr); |
1437 | encode_savefh(&xdr, &hdr); | |
1438 | encode_putfh(&xdr, args->new_dir, &hdr); | |
1439 | encode_rename(&xdr, args->old_name, args->new_name, &hdr); | |
1440 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1441 | encode_restorefh(&xdr, &hdr); | |
1442 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1443 | encode_nops(&hdr); |
cf8cdbe5 | 1444 | return 0; |
1da177e4 LT |
1445 | } |
1446 | ||
1447 | /* | |
1448 | * Encode LINK request | |
1449 | */ | |
8687b63a | 1450 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1451 | { |
1452 | struct xdr_stream xdr; | |
1453 | struct compound_hdr hdr = { | |
d017931c | 1454 | .nops = 0, |
1da177e4 | 1455 | }; |
1da177e4 LT |
1456 | |
1457 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1458 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1459 | encode_putfh(&xdr, args->fh, &hdr); |
1460 | encode_savefh(&xdr, &hdr); | |
1461 | encode_putfh(&xdr, args->dir_fh, &hdr); | |
1462 | encode_link(&xdr, args->name, &hdr); | |
1463 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1464 | encode_restorefh(&xdr, &hdr); | |
1465 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1466 | encode_nops(&hdr); |
cf8cdbe5 | 1467 | return 0; |
1da177e4 LT |
1468 | } |
1469 | ||
1470 | /* | |
1471 | * Encode CREATE request | |
1472 | */ | |
8687b63a | 1473 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1474 | { |
1475 | struct xdr_stream xdr; | |
1476 | struct compound_hdr hdr = { | |
d017931c | 1477 | .nops = 0, |
1da177e4 | 1478 | }; |
1da177e4 LT |
1479 | |
1480 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1481 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1482 | encode_putfh(&xdr, args->dir_fh, &hdr); |
1483 | encode_savefh(&xdr, &hdr); | |
1484 | encode_create(&xdr, args, &hdr); | |
1485 | encode_getfh(&xdr, &hdr); | |
1486 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1487 | encode_restorefh(&xdr, &hdr); | |
1488 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1489 | encode_nops(&hdr); |
cf8cdbe5 | 1490 | return 0; |
1da177e4 LT |
1491 | } |
1492 | ||
1493 | /* | |
1494 | * Encode SYMLINK request | |
1495 | */ | |
8687b63a | 1496 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1497 | { |
1498 | return nfs4_xdr_enc_create(req, p, args); | |
1499 | } | |
1500 | ||
1501 | /* | |
1502 | * Encode GETATTR request | |
1503 | */ | |
8687b63a | 1504 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1505 | { |
1506 | struct xdr_stream xdr; | |
1507 | struct compound_hdr hdr = { | |
d017931c | 1508 | .nops = 0, |
1da177e4 | 1509 | }; |
1da177e4 LT |
1510 | |
1511 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1512 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1513 | encode_putfh(&xdr, args->fh, &hdr); |
1514 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1515 | encode_nops(&hdr); |
cf8cdbe5 | 1516 | return 0; |
1da177e4 LT |
1517 | } |
1518 | ||
1519 | /* | |
1520 | * Encode a CLOSE request | |
1521 | */ | |
8687b63a | 1522 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1523 | { |
05d564fe AA |
1524 | struct xdr_stream xdr; |
1525 | struct compound_hdr hdr = { | |
d017931c | 1526 | .nops = 0, |
05d564fe | 1527 | }; |
05d564fe AA |
1528 | |
1529 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1530 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1531 | encode_putfh(&xdr, args->fh, &hdr); |
1532 | encode_close(&xdr, args, &hdr); | |
1533 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1534 | encode_nops(&hdr); |
cf8cdbe5 | 1535 | return 0; |
1da177e4 LT |
1536 | } |
1537 | ||
1538 | /* | |
1539 | * Encode an OPEN request | |
1540 | */ | |
8687b63a | 1541 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1542 | { |
1543 | struct xdr_stream xdr; | |
1544 | struct compound_hdr hdr = { | |
d017931c | 1545 | .nops = 0, |
1da177e4 | 1546 | }; |
1da177e4 LT |
1547 | |
1548 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1549 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1550 | encode_putfh(&xdr, args->fh, &hdr); |
1551 | encode_savefh(&xdr, &hdr); | |
1552 | encode_open(&xdr, args, &hdr); | |
1553 | encode_getfh(&xdr, &hdr); | |
1554 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
1555 | encode_restorefh(&xdr, &hdr); | |
1556 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1557 | encode_nops(&hdr); |
cf8cdbe5 | 1558 | return 0; |
1da177e4 LT |
1559 | } |
1560 | ||
1561 | /* | |
1562 | * Encode an OPEN_CONFIRM request | |
1563 | */ | |
8687b63a | 1564 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1565 | { |
1566 | struct xdr_stream xdr; | |
1567 | struct compound_hdr hdr = { | |
d017931c | 1568 | .nops = 0, |
1da177e4 | 1569 | }; |
1da177e4 LT |
1570 | |
1571 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1572 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1573 | encode_putfh(&xdr, args->fh, &hdr); |
1574 | encode_open_confirm(&xdr, args, &hdr); | |
d017931c | 1575 | encode_nops(&hdr); |
cf8cdbe5 | 1576 | return 0; |
1da177e4 LT |
1577 | } |
1578 | ||
1579 | /* | |
1580 | * Encode an OPEN request with no attributes. | |
1581 | */ | |
8687b63a | 1582 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1583 | { |
1584 | struct xdr_stream xdr; | |
1585 | struct compound_hdr hdr = { | |
d017931c | 1586 | .nops = 0, |
1da177e4 | 1587 | }; |
1da177e4 LT |
1588 | |
1589 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1590 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1591 | encode_putfh(&xdr, args->fh, &hdr); |
1592 | encode_open(&xdr, args, &hdr); | |
1593 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1594 | encode_nops(&hdr); |
cf8cdbe5 | 1595 | return 0; |
1da177e4 LT |
1596 | } |
1597 | ||
1598 | /* | |
1599 | * Encode an OPEN_DOWNGRADE request | |
1600 | */ | |
8687b63a | 1601 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1602 | { |
1603 | struct xdr_stream xdr; | |
1604 | struct compound_hdr hdr = { | |
d017931c | 1605 | .nops = 0, |
1da177e4 | 1606 | }; |
1da177e4 LT |
1607 | |
1608 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1609 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1610 | encode_putfh(&xdr, args->fh, &hdr); |
1611 | encode_open_downgrade(&xdr, args, &hdr); | |
1612 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1613 | encode_nops(&hdr); |
cf8cdbe5 | 1614 | return 0; |
1da177e4 LT |
1615 | } |
1616 | ||
1617 | /* | |
1618 | * Encode a LOCK request | |
1619 | */ | |
8687b63a | 1620 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1621 | { |
1622 | struct xdr_stream xdr; | |
1623 | struct compound_hdr hdr = { | |
d017931c | 1624 | .nops = 0, |
1da177e4 | 1625 | }; |
1da177e4 LT |
1626 | |
1627 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1628 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1629 | encode_putfh(&xdr, args->fh, &hdr); |
1630 | encode_lock(&xdr, args, &hdr); | |
d017931c | 1631 | encode_nops(&hdr); |
cf8cdbe5 | 1632 | return 0; |
1da177e4 LT |
1633 | } |
1634 | ||
1635 | /* | |
1636 | * Encode a LOCKT request | |
1637 | */ | |
8687b63a | 1638 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1639 | { |
1640 | struct xdr_stream xdr; | |
1641 | struct compound_hdr hdr = { | |
d017931c | 1642 | .nops = 0, |
1da177e4 | 1643 | }; |
1da177e4 LT |
1644 | |
1645 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1646 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1647 | encode_putfh(&xdr, args->fh, &hdr); |
1648 | encode_lockt(&xdr, args, &hdr); | |
d017931c | 1649 | encode_nops(&hdr); |
cf8cdbe5 | 1650 | return 0; |
1da177e4 LT |
1651 | } |
1652 | ||
1653 | /* | |
1654 | * Encode a LOCKU request | |
1655 | */ | |
8687b63a | 1656 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1657 | { |
1658 | struct xdr_stream xdr; | |
1659 | struct compound_hdr hdr = { | |
d017931c | 1660 | .nops = 0, |
1da177e4 | 1661 | }; |
1da177e4 LT |
1662 | |
1663 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1664 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1665 | encode_putfh(&xdr, args->fh, &hdr); |
1666 | encode_locku(&xdr, args, &hdr); | |
d017931c | 1667 | encode_nops(&hdr); |
cf8cdbe5 | 1668 | return 0; |
1da177e4 LT |
1669 | } |
1670 | ||
1671 | /* | |
1672 | * Encode a READLINK request | |
1673 | */ | |
8687b63a | 1674 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1675 | { |
1676 | struct xdr_stream xdr; | |
1677 | struct compound_hdr hdr = { | |
d017931c | 1678 | .nops = 0, |
1da177e4 | 1679 | }; |
e3a535e1 TM |
1680 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1681 | unsigned int replen; | |
1da177e4 LT |
1682 | |
1683 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1684 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1685 | encode_putfh(&xdr, args->fh, &hdr); |
1686 | encode_readlink(&xdr, args, req, &hdr); | |
e3a535e1 TM |
1687 | |
1688 | /* set up reply kvec | |
1689 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1690 | * + OP_READLINK + status + string length = 8 | |
1691 | */ | |
1692 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; | |
1693 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1694 | args->pgbase, args->pglen); | |
d017931c | 1695 | encode_nops(&hdr); |
cf8cdbe5 | 1696 | return 0; |
1da177e4 LT |
1697 | } |
1698 | ||
1699 | /* | |
1700 | * Encode a READDIR request | |
1701 | */ | |
8687b63a | 1702 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1703 | { |
1704 | struct xdr_stream xdr; | |
1705 | struct compound_hdr hdr = { | |
d017931c | 1706 | .nops = 0, |
1da177e4 | 1707 | }; |
d6ac02df TM |
1708 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1709 | int replen; | |
1da177e4 LT |
1710 | |
1711 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1712 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1713 | encode_putfh(&xdr, args->fh, &hdr); |
1714 | encode_readdir(&xdr, args, req, &hdr); | |
d6ac02df TM |
1715 | |
1716 | /* set up reply kvec | |
1717 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1718 | * + OP_READDIR + status + verifer(2) = 9 | |
1719 | */ | |
1720 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; | |
1721 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1722 | args->pgbase, args->count); | |
1723 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
3110ff80 | 1724 | __func__, replen, args->pages, |
d6ac02df | 1725 | args->pgbase, args->count); |
d017931c | 1726 | encode_nops(&hdr); |
cf8cdbe5 | 1727 | return 0; |
1da177e4 LT |
1728 | } |
1729 | ||
1730 | /* | |
1731 | * Encode a READ request | |
1732 | */ | |
8687b63a | 1733 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1734 | { |
1be27f36 | 1735 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 LT |
1736 | struct xdr_stream xdr; |
1737 | struct compound_hdr hdr = { | |
d017931c | 1738 | .nops = 0, |
1da177e4 | 1739 | }; |
cf8cdbe5 | 1740 | int replen; |
1da177e4 LT |
1741 | |
1742 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1743 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1744 | encode_putfh(&xdr, args->fh, &hdr); |
1745 | encode_read(&xdr, args, &hdr); | |
1da177e4 LT |
1746 | |
1747 | /* set up reply kvec | |
1748 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status | |
1749 | * + OP_READ + status + eof + datalen = 9 | |
1750 | */ | |
1751 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; | |
1752 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1753 | args->pages, args->pgbase, args->count); | |
4f22ccc3 | 1754 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
d017931c | 1755 | encode_nops(&hdr); |
cf8cdbe5 | 1756 | return 0; |
1da177e4 LT |
1757 | } |
1758 | ||
1759 | /* | |
1760 | * Encode an SETATTR request | |
1761 | */ | |
8687b63a | 1762 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 1763 | { |
05d564fe AA |
1764 | struct xdr_stream xdr; |
1765 | struct compound_hdr hdr = { | |
d017931c | 1766 | .nops = 0, |
05d564fe | 1767 | }; |
05d564fe AA |
1768 | |
1769 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1770 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1771 | encode_putfh(&xdr, args->fh, &hdr); |
1772 | encode_setattr(&xdr, args, args->server, &hdr); | |
1773 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1774 | encode_nops(&hdr); |
cf8cdbe5 | 1775 | return 0; |
1da177e4 LT |
1776 | } |
1777 | ||
029d105e BF |
1778 | /* |
1779 | * Encode a GETACL request | |
1780 | */ | |
1781 | static int | |
8687b63a | 1782 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1783 | struct nfs_getaclargs *args) |
1784 | { | |
1785 | struct xdr_stream xdr; | |
1be27f36 | 1786 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
029d105e | 1787 | struct compound_hdr hdr = { |
d017931c | 1788 | .nops = 0, |
029d105e | 1789 | }; |
cf8cdbe5 | 1790 | int replen; |
029d105e BF |
1791 | |
1792 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1793 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1794 | encode_putfh(&xdr, args->fh, &hdr); |
1795 | encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); | |
1796 | ||
029d105e BF |
1797 | /* set up reply buffer: */ |
1798 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; | |
1799 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1800 | args->acl_pages, args->acl_pgbase, args->acl_len); | |
d017931c | 1801 | encode_nops(&hdr); |
cf8cdbe5 | 1802 | return 0; |
029d105e BF |
1803 | } |
1804 | ||
1da177e4 LT |
1805 | /* |
1806 | * Encode a WRITE request | |
1807 | */ | |
8687b63a | 1808 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1809 | { |
1810 | struct xdr_stream xdr; | |
1811 | struct compound_hdr hdr = { | |
d017931c | 1812 | .nops = 0, |
1da177e4 | 1813 | }; |
1da177e4 LT |
1814 | |
1815 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1816 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1817 | encode_putfh(&xdr, args->fh, &hdr); |
1818 | encode_write(&xdr, args, &hdr); | |
4f22ccc3 | 1819 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
cf8cdbe5 | 1820 | encode_getfattr(&xdr, args->bitmask, &hdr); |
d017931c | 1821 | encode_nops(&hdr); |
cf8cdbe5 | 1822 | return 0; |
1da177e4 LT |
1823 | } |
1824 | ||
1825 | /* | |
1826 | * a COMMIT request | |
1827 | */ | |
8687b63a | 1828 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1829 | { |
1830 | struct xdr_stream xdr; | |
1831 | struct compound_hdr hdr = { | |
d017931c | 1832 | .nops = 0, |
1da177e4 | 1833 | }; |
1da177e4 LT |
1834 | |
1835 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1836 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1837 | encode_putfh(&xdr, args->fh, &hdr); |
1838 | encode_commit(&xdr, args, &hdr); | |
1839 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1840 | encode_nops(&hdr); |
cf8cdbe5 | 1841 | return 0; |
1da177e4 LT |
1842 | } |
1843 | ||
1844 | /* | |
1845 | * FSINFO request | |
1846 | */ | |
8687b63a | 1847 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
1848 | { |
1849 | struct xdr_stream xdr; | |
1850 | struct compound_hdr hdr = { | |
d017931c | 1851 | .nops = 0, |
1da177e4 | 1852 | }; |
1da177e4 LT |
1853 | |
1854 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1855 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1856 | encode_putfh(&xdr, args->fh, &hdr); |
1857 | encode_fsinfo(&xdr, args->bitmask, &hdr); | |
d017931c | 1858 | encode_nops(&hdr); |
cf8cdbe5 | 1859 | return 0; |
1da177e4 LT |
1860 | } |
1861 | ||
1862 | /* | |
1863 | * a PATHCONF request | |
1864 | */ | |
8687b63a | 1865 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 1866 | { |
1da177e4 LT |
1867 | struct xdr_stream xdr; |
1868 | struct compound_hdr hdr = { | |
d017931c | 1869 | .nops = 0, |
1da177e4 | 1870 | }; |
1da177e4 LT |
1871 | |
1872 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1873 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1874 | encode_putfh(&xdr, args->fh, &hdr); |
1875 | encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], | |
1876 | &hdr); | |
d017931c | 1877 | encode_nops(&hdr); |
cf8cdbe5 | 1878 | return 0; |
1da177e4 LT |
1879 | } |
1880 | ||
1881 | /* | |
1882 | * a STATFS request | |
1883 | */ | |
8687b63a | 1884 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 1885 | { |
1da177e4 LT |
1886 | struct xdr_stream xdr; |
1887 | struct compound_hdr hdr = { | |
d017931c | 1888 | .nops = 0, |
1da177e4 | 1889 | }; |
1da177e4 LT |
1890 | |
1891 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1892 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1893 | encode_putfh(&xdr, args->fh, &hdr); |
1894 | encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], | |
1895 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); | |
d017931c | 1896 | encode_nops(&hdr); |
cf8cdbe5 | 1897 | return 0; |
1da177e4 LT |
1898 | } |
1899 | ||
1900 | /* | |
1901 | * GETATTR_BITMAP request | |
1902 | */ | |
8687b63a | 1903 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) |
1da177e4 LT |
1904 | { |
1905 | struct xdr_stream xdr; | |
1906 | struct compound_hdr hdr = { | |
d017931c | 1907 | .nops = 0, |
1da177e4 | 1908 | }; |
1da177e4 LT |
1909 | |
1910 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1911 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1912 | encode_putfh(&xdr, fhandle, &hdr); |
1913 | encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| | |
1914 | FATTR4_WORD0_LINK_SUPPORT| | |
1915 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
1916 | FATTR4_WORD0_ACLSUPPORT, &hdr); | |
d017931c | 1917 | encode_nops(&hdr); |
cf8cdbe5 | 1918 | return 0; |
1da177e4 LT |
1919 | } |
1920 | ||
1921 | /* | |
1922 | * a RENEW request | |
1923 | */ | |
8687b63a | 1924 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1925 | { |
1926 | struct xdr_stream xdr; | |
1927 | struct compound_hdr hdr = { | |
d017931c | 1928 | .nops = 0, |
1da177e4 LT |
1929 | }; |
1930 | ||
1931 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1932 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 | 1933 | encode_renew(&xdr, clp, &hdr); |
d017931c | 1934 | encode_nops(&hdr); |
cf8cdbe5 | 1935 | return 0; |
1da177e4 LT |
1936 | } |
1937 | ||
1938 | /* | |
1939 | * a SETCLIENTID request | |
1940 | */ | |
8687b63a | 1941 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
1942 | { |
1943 | struct xdr_stream xdr; | |
1944 | struct compound_hdr hdr = { | |
d017931c | 1945 | .nops = 0, |
1da177e4 LT |
1946 | }; |
1947 | ||
1948 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1949 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 | 1950 | encode_setclientid(&xdr, sc, &hdr); |
d017931c | 1951 | encode_nops(&hdr); |
cf8cdbe5 | 1952 | return 0; |
1da177e4 LT |
1953 | } |
1954 | ||
1955 | /* | |
1956 | * a SETCLIENTID_CONFIRM request | |
1957 | */ | |
8687b63a | 1958 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
1959 | { |
1960 | struct xdr_stream xdr; | |
1961 | struct compound_hdr hdr = { | |
d017931c | 1962 | .nops = 0, |
1da177e4 LT |
1963 | }; |
1964 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
1da177e4 LT |
1965 | |
1966 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1967 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1968 | encode_setclientid_confirm(&xdr, clp, &hdr); |
1969 | encode_putrootfh(&xdr, &hdr); | |
1970 | encode_fsinfo(&xdr, lease_bitmap, &hdr); | |
d017931c | 1971 | encode_nops(&hdr); |
cf8cdbe5 | 1972 | return 0; |
1da177e4 LT |
1973 | } |
1974 | ||
1975 | /* | |
1976 | * DELEGRETURN request | |
1977 | */ | |
8687b63a | 1978 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
1979 | { |
1980 | struct xdr_stream xdr; | |
1981 | struct compound_hdr hdr = { | |
d017931c | 1982 | .nops = 0, |
1da177e4 | 1983 | }; |
1da177e4 LT |
1984 | |
1985 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1986 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
1987 | encode_putfh(&xdr, args->fhandle, &hdr); |
1988 | encode_delegreturn(&xdr, args->stateid, &hdr); | |
1989 | encode_getfattr(&xdr, args->bitmask, &hdr); | |
d017931c | 1990 | encode_nops(&hdr); |
cf8cdbe5 | 1991 | return 0; |
1da177e4 LT |
1992 | } |
1993 | ||
683b57b4 TM |
1994 | /* |
1995 | * Encode FS_LOCATIONS request | |
1996 | */ | |
8687b63a | 1997 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
1998 | { |
1999 | struct xdr_stream xdr; | |
2000 | struct compound_hdr hdr = { | |
d017931c | 2001 | .nops = 0, |
683b57b4 | 2002 | }; |
1be27f36 | 2003 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
683b57b4 | 2004 | int replen; |
683b57b4 TM |
2005 | |
2006 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2007 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 AA |
2008 | encode_putfh(&xdr, args->dir_fh, &hdr); |
2009 | encode_lookup(&xdr, args->name, &hdr); | |
2010 | encode_fs_locations(&xdr, args->bitmask, &hdr); | |
2011 | ||
683b57b4 | 2012 | /* set up reply |
830b8e33 | 2013 | * toplevel_status + OP_PUTFH + status |
683b57b4 TM |
2014 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
2015 | */ | |
2016 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; | |
2017 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, | |
2018 | 0, PAGE_SIZE); | |
d017931c | 2019 | encode_nops(&hdr); |
cf8cdbe5 | 2020 | return 0; |
683b57b4 TM |
2021 | } |
2022 | ||
1da177e4 LT |
2023 | /* |
2024 | * START OF "GENERIC" DECODE ROUTINES. | |
2025 | * These may look a little ugly since they are imported from a "generic" | |
2026 | * set of XDR encode/decode routines which are intended to be shared by | |
2027 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2028 | * | |
2029 | * If the pain of reading these is too great, it should be a straightforward | |
2030 | * task to translate them into Linux-specific versions which are more | |
2031 | * consistent with the style used in NFSv2/v3... | |
2032 | */ | |
2033 | #define READ32(x) (x) = ntohl(*p++) | |
2034 | #define READ64(x) do { \ | |
2035 | (x) = (u64)ntohl(*p++) << 32; \ | |
2036 | (x) |= ntohl(*p++); \ | |
2037 | } while (0) | |
2038 | #define READTIME(x) do { \ | |
2039 | p++; \ | |
2040 | (x.tv_sec) = ntohl(*p++); \ | |
2041 | (x.tv_nsec) = ntohl(*p++); \ | |
2042 | } while (0) | |
2043 | #define COPYMEM(x,nbytes) do { \ | |
2044 | memcpy((x), p, nbytes); \ | |
2045 | p += XDR_QUADLEN(nbytes); \ | |
2046 | } while (0) | |
2047 | ||
2048 | #define READ_BUF(nbytes) do { \ | |
2049 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2050 | if (unlikely(!p)) { \ |
fe82a183 | 2051 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2052 | " buffer\n", __func__); \ |
fe82a183 | 2053 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2054 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2055 | return -EIO; \ |
2056 | } \ | |
2057 | } while (0) | |
2058 | ||
683b57b4 | 2059 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2060 | { |
8687b63a | 2061 | __be32 *p; |
1da177e4 LT |
2062 | |
2063 | READ_BUF(4); | |
2064 | READ32(*len); | |
2065 | READ_BUF(*len); | |
2066 | *string = (char *)p; | |
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2071 | { | |
8687b63a | 2072 | __be32 *p; |
1da177e4 LT |
2073 | |
2074 | READ_BUF(8); | |
2075 | READ32(hdr->status); | |
2076 | READ32(hdr->taglen); | |
6c0195a4 | 2077 | |
1da177e4 LT |
2078 | READ_BUF(hdr->taglen + 4); |
2079 | hdr->tag = (char *)p; | |
2080 | p += XDR_QUADLEN(hdr->taglen); | |
2081 | READ32(hdr->nops); | |
aadf6152 BH |
2082 | if (unlikely(hdr->nops < 1)) |
2083 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2084 | return 0; |
2085 | } | |
2086 | ||
2087 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2088 | { | |
8687b63a | 2089 | __be32 *p; |
1da177e4 LT |
2090 | uint32_t opnum; |
2091 | int32_t nfserr; | |
2092 | ||
2093 | READ_BUF(8); | |
2094 | READ32(opnum); | |
2095 | if (opnum != expected) { | |
fe82a183 CL |
2096 | dprintk("nfs: Server returned operation" |
2097 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2098 | opnum, expected); |
2099 | return -EIO; | |
2100 | } | |
2101 | READ32(nfserr); | |
2102 | if (nfserr != NFS_OK) | |
856dff3d | 2103 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2104 | return 0; |
2105 | } | |
2106 | ||
2107 | /* Dummy routine */ | |
adfa6f98 | 2108 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2109 | { |
8687b63a | 2110 | __be32 *p; |
683b57b4 | 2111 | unsigned int strlen; |
1da177e4 LT |
2112 | char *str; |
2113 | ||
2114 | READ_BUF(12); | |
2115 | return decode_opaque_inline(xdr, &strlen, &str); | |
2116 | } | |
2117 | ||
2118 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2119 | { | |
8687b63a AV |
2120 | uint32_t bmlen; |
2121 | __be32 *p; | |
1da177e4 LT |
2122 | |
2123 | READ_BUF(4); | |
2124 | READ32(bmlen); | |
2125 | ||
2126 | bitmap[0] = bitmap[1] = 0; | |
2127 | READ_BUF((bmlen << 2)); | |
2128 | if (bmlen > 0) { | |
2129 | READ32(bitmap[0]); | |
2130 | if (bmlen > 1) | |
2131 | READ32(bitmap[1]); | |
2132 | } | |
2133 | return 0; | |
2134 | } | |
2135 | ||
8687b63a | 2136 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2137 | { |
8687b63a | 2138 | __be32 *p; |
1da177e4 LT |
2139 | |
2140 | READ_BUF(4); | |
2141 | READ32(*attrlen); | |
2142 | *savep = xdr->p; | |
2143 | return 0; | |
2144 | } | |
2145 | ||
2146 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2147 | { | |
2148 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2149 | decode_attr_bitmap(xdr, bitmask); | |
2150 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2151 | } else | |
2152 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2153 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2154 | return 0; |
2155 | } | |
2156 | ||
2157 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2158 | { | |
8687b63a | 2159 | __be32 *p; |
409924e4 | 2160 | int ret = 0; |
1da177e4 LT |
2161 | |
2162 | *type = 0; | |
2163 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2164 | return -EIO; | |
2165 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2166 | READ_BUF(4); | |
2167 | READ32(*type); | |
2168 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2169 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2170 | return -EIO; |
2171 | } | |
2172 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
409924e4 | 2173 | ret = NFS_ATTR_FATTR_TYPE; |
1da177e4 | 2174 | } |
bca79478 | 2175 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); |
409924e4 | 2176 | return ret; |
1da177e4 LT |
2177 | } |
2178 | ||
2179 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2180 | { | |
8687b63a | 2181 | __be32 *p; |
409924e4 | 2182 | int ret = 0; |
1da177e4 LT |
2183 | |
2184 | *change = 0; | |
2185 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2186 | return -EIO; | |
2187 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2188 | READ_BUF(8); | |
2189 | READ64(*change); | |
2190 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
409924e4 | 2191 | ret = NFS_ATTR_FATTR_CHANGE; |
1da177e4 | 2192 | } |
3110ff80 | 2193 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 | 2194 | (unsigned long long)*change); |
409924e4 | 2195 | return ret; |
1da177e4 LT |
2196 | } |
2197 | ||
2198 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2199 | { | |
8687b63a | 2200 | __be32 *p; |
409924e4 | 2201 | int ret = 0; |
1da177e4 LT |
2202 | |
2203 | *size = 0; | |
2204 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2205 | return -EIO; | |
2206 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2207 | READ_BUF(8); | |
2208 | READ64(*size); | |
2209 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
409924e4 | 2210 | ret = NFS_ATTR_FATTR_SIZE; |
1da177e4 | 2211 | } |
3110ff80 | 2212 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
409924e4 | 2213 | return ret; |
1da177e4 LT |
2214 | } |
2215 | ||
2216 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2217 | { | |
8687b63a | 2218 | __be32 *p; |
1da177e4 LT |
2219 | |
2220 | *res = 0; | |
2221 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2222 | return -EIO; | |
2223 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2224 | READ_BUF(4); | |
2225 | READ32(*res); | |
2226 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2227 | } | |
3110ff80 | 2228 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2229 | return 0; |
2230 | } | |
2231 | ||
2232 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2233 | { | |
8687b63a | 2234 | __be32 *p; |
1da177e4 LT |
2235 | |
2236 | *res = 0; | |
2237 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2238 | return -EIO; | |
2239 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2240 | READ_BUF(4); | |
2241 | READ32(*res); | |
2242 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2243 | } | |
3110ff80 | 2244 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2245 | return 0; |
2246 | } | |
2247 | ||
8b4bdcf8 | 2248 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2249 | { |
8687b63a | 2250 | __be32 *p; |
409924e4 | 2251 | int ret = 0; |
1da177e4 LT |
2252 | |
2253 | fsid->major = 0; | |
2254 | fsid->minor = 0; | |
2255 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2256 | return -EIO; | |
2257 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2258 | READ_BUF(16); | |
2259 | READ64(fsid->major); | |
2260 | READ64(fsid->minor); | |
2261 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
409924e4 | 2262 | ret = NFS_ATTR_FATTR_FSID; |
1da177e4 | 2263 | } |
3110ff80 | 2264 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2265 | (unsigned long long)fsid->major, |
2266 | (unsigned long long)fsid->minor); | |
409924e4 | 2267 | return ret; |
1da177e4 LT |
2268 | } |
2269 | ||
2270 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2271 | { | |
8687b63a | 2272 | __be32 *p; |
1da177e4 LT |
2273 | |
2274 | *res = 60; | |
2275 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2276 | return -EIO; | |
2277 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2278 | READ_BUF(4); | |
2279 | READ32(*res); | |
2280 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2281 | } | |
3110ff80 | 2282 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2283 | return 0; |
2284 | } | |
2285 | ||
2286 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2287 | { | |
8687b63a | 2288 | __be32 *p; |
1da177e4 LT |
2289 | |
2290 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2291 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2292 | return -EIO; | |
2293 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2294 | READ_BUF(4); | |
2295 | READ32(*res); | |
2296 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2297 | } | |
3110ff80 | 2298 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2299 | return 0; |
2300 | } | |
2301 | ||
2302 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2303 | { | |
8687b63a | 2304 | __be32 *p; |
409924e4 | 2305 | int ret = 0; |
1da177e4 LT |
2306 | |
2307 | *fileid = 0; | |
2308 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2309 | return -EIO; | |
2310 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2311 | READ_BUF(8); | |
2312 | READ64(*fileid); | |
2313 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
409924e4 | 2314 | ret = NFS_ATTR_FATTR_FILEID; |
1da177e4 | 2315 | } |
3110ff80 | 2316 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2317 | return ret; |
1da177e4 LT |
2318 | } |
2319 | ||
99baf625 MN |
2320 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2321 | { | |
8687b63a | 2322 | __be32 *p; |
409924e4 | 2323 | int ret = 0; |
99baf625 MN |
2324 | |
2325 | *fileid = 0; | |
2326 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2327 | return -EIO; | |
2328 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2329 | READ_BUF(8); | |
2330 | READ64(*fileid); | |
2331 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
409924e4 | 2332 | ret = NFS_ATTR_FATTR_FILEID; |
99baf625 | 2333 | } |
3110ff80 | 2334 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
409924e4 | 2335 | return ret; |
99baf625 MN |
2336 | } |
2337 | ||
1da177e4 LT |
2338 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2339 | { | |
8687b63a | 2340 | __be32 *p; |
1da177e4 LT |
2341 | int status = 0; |
2342 | ||
2343 | *res = 0; | |
2344 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2345 | return -EIO; | |
2346 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2347 | READ_BUF(8); | |
2348 | READ64(*res); | |
2349 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2350 | } | |
3110ff80 | 2351 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2352 | return status; |
2353 | } | |
2354 | ||
2355 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2356 | { | |
8687b63a | 2357 | __be32 *p; |
1da177e4 LT |
2358 | int status = 0; |
2359 | ||
2360 | *res = 0; | |
2361 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2362 | return -EIO; | |
2363 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2364 | READ_BUF(8); | |
2365 | READ64(*res); | |
2366 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2367 | } | |
3110ff80 | 2368 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2369 | return status; |
2370 | } | |
2371 | ||
2372 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2373 | { | |
8687b63a | 2374 | __be32 *p; |
1da177e4 LT |
2375 | int status = 0; |
2376 | ||
2377 | *res = 0; | |
2378 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2379 | return -EIO; | |
2380 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2381 | READ_BUF(8); | |
2382 | READ64(*res); | |
2383 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2384 | } | |
3110ff80 | 2385 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2386 | return status; |
2387 | } | |
2388 | ||
7aaa0b3b MN |
2389 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2390 | { | |
464ad6b1 | 2391 | u32 n; |
8687b63a | 2392 | __be32 *p; |
7aaa0b3b MN |
2393 | int status = 0; |
2394 | ||
2395 | READ_BUF(4); | |
2396 | READ32(n); | |
33a43f28 AA |
2397 | if (n == 0) |
2398 | goto root_path; | |
7aaa0b3b MN |
2399 | dprintk("path "); |
2400 | path->ncomponents = 0; | |
2401 | while (path->ncomponents < n) { | |
2402 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2403 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2404 | if (unlikely(status != 0)) | |
2405 | goto out_eio; | |
2406 | if (path->ncomponents != n) | |
2407 | dprintk("/"); | |
2408 | dprintk("%s", component->data); | |
2409 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2410 | path->ncomponents++; | |
2411 | else { | |
2412 | dprintk("cannot parse %d components in path\n", n); | |
2413 | goto out_eio; | |
2414 | } | |
2415 | } | |
2416 | out: | |
2417 | dprintk("\n"); | |
2418 | return status; | |
33a43f28 AA |
2419 | root_path: |
2420 | /* a root pathname is sent as a zero component4 */ | |
2421 | path->ncomponents = 1; | |
2422 | path->components[0].len=0; | |
2423 | path->components[0].data=NULL; | |
2424 | dprintk("path /\n"); | |
2425 | goto out; | |
7aaa0b3b MN |
2426 | out_eio: |
2427 | dprintk(" status %d", status); | |
2428 | status = -EIO; | |
2429 | goto out; | |
2430 | } | |
2431 | ||
2432 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2433 | { |
2434 | int n; | |
8687b63a | 2435 | __be32 *p; |
683b57b4 TM |
2436 | int status = -EIO; |
2437 | ||
2438 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2439 | goto out; | |
2440 | status = 0; | |
2441 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2442 | goto out; | |
3110ff80 | 2443 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2444 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2445 | if (unlikely(status != 0)) |
2446 | goto out; | |
2447 | READ_BUF(4); | |
2448 | READ32(n); | |
2449 | if (n <= 0) | |
2450 | goto out_eio; | |
2451 | res->nlocations = 0; | |
2452 | while (res->nlocations < n) { | |
464ad6b1 | 2453 | u32 m; |
7aaa0b3b | 2454 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2455 | |
7aaa0b3b MN |
2456 | READ_BUF(4); |
2457 | READ32(m); | |
7aaa0b3b MN |
2458 | |
2459 | loc->nservers = 0; | |
3110ff80 | 2460 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2461 | while (loc->nservers < m) { |
2462 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2463 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2464 | if (unlikely(status != 0)) | |
2465 | goto out_eio; | |
2466 | dprintk("%s ", server->data); | |
2467 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2468 | loc->nservers++; | |
2469 | else { | |
464ad6b1 CL |
2470 | unsigned int i; |
2471 | dprintk("%s: using first %u of %u servers " | |
2472 | "returned for location %u\n", | |
3110ff80 | 2473 | __func__, |
464ad6b1 CL |
2474 | NFS4_FS_LOCATION_MAXSERVERS, |
2475 | m, res->nlocations); | |
7aaa0b3b | 2476 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2477 | unsigned int len; |
7aaa0b3b MN |
2478 | char *data; |
2479 | status = decode_opaque_inline(xdr, &len, &data); | |
2480 | if (unlikely(status != 0)) | |
2481 | goto out_eio; | |
2482 | } | |
2483 | } | |
2484 | } | |
2485 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2486 | if (unlikely(status != 0)) |
2487 | goto out_eio; | |
7aaa0b3b | 2488 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2489 | res->nlocations++; |
2490 | } | |
409924e4 TM |
2491 | if (res->nlocations != 0) |
2492 | status = NFS_ATTR_FATTR_V4_REFERRAL; | |
683b57b4 | 2493 | out: |
3110ff80 | 2494 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2495 | return status; |
2496 | out_eio: | |
2497 | status = -EIO; | |
2498 | goto out; | |
2499 | } | |
2500 | ||
1da177e4 LT |
2501 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2502 | { | |
8687b63a | 2503 | __be32 *p; |
1da177e4 LT |
2504 | int status = 0; |
2505 | ||
2506 | *res = 0; | |
2507 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2508 | return -EIO; | |
2509 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2510 | READ_BUF(8); | |
2511 | READ64(*res); | |
2512 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2513 | } | |
3110ff80 | 2514 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2515 | return status; |
2516 | } | |
2517 | ||
2518 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2519 | { | |
8687b63a | 2520 | __be32 *p; |
1da177e4 LT |
2521 | int status = 0; |
2522 | ||
2523 | *maxlink = 1; | |
2524 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2525 | return -EIO; | |
2526 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2527 | READ_BUF(4); | |
2528 | READ32(*maxlink); | |
2529 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2530 | } | |
3110ff80 | 2531 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2532 | return status; |
2533 | } | |
2534 | ||
2535 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2536 | { | |
8687b63a | 2537 | __be32 *p; |
1da177e4 LT |
2538 | int status = 0; |
2539 | ||
2540 | *maxname = 1024; | |
2541 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2542 | return -EIO; | |
2543 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2544 | READ_BUF(4); | |
2545 | READ32(*maxname); | |
2546 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2547 | } | |
3110ff80 | 2548 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2549 | return status; |
2550 | } | |
2551 | ||
2552 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2553 | { | |
8687b63a | 2554 | __be32 *p; |
1da177e4 LT |
2555 | int status = 0; |
2556 | ||
2557 | *res = 1024; | |
2558 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2559 | return -EIO; | |
2560 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2561 | uint64_t maxread; | |
2562 | READ_BUF(8); | |
2563 | READ64(maxread); | |
2564 | if (maxread > 0x7FFFFFFF) | |
2565 | maxread = 0x7FFFFFFF; | |
2566 | *res = (uint32_t)maxread; | |
2567 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2568 | } | |
3110ff80 | 2569 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2570 | return status; |
2571 | } | |
2572 | ||
2573 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2574 | { | |
8687b63a | 2575 | __be32 *p; |
1da177e4 LT |
2576 | int status = 0; |
2577 | ||
2578 | *res = 1024; | |
2579 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2580 | return -EIO; | |
2581 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2582 | uint64_t maxwrite; | |
2583 | READ_BUF(8); | |
2584 | READ64(maxwrite); | |
2585 | if (maxwrite > 0x7FFFFFFF) | |
2586 | maxwrite = 0x7FFFFFFF; | |
2587 | *res = (uint32_t)maxwrite; | |
2588 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2589 | } | |
3110ff80 | 2590 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2591 | return status; |
2592 | } | |
2593 | ||
bca79478 | 2594 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) |
1da177e4 | 2595 | { |
bca79478 | 2596 | uint32_t tmp; |
8687b63a | 2597 | __be32 *p; |
409924e4 | 2598 | int ret = 0; |
1da177e4 LT |
2599 | |
2600 | *mode = 0; | |
2601 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2602 | return -EIO; | |
2603 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2604 | READ_BUF(4); | |
bca79478 TM |
2605 | READ32(tmp); |
2606 | *mode = tmp & ~S_IFMT; | |
1da177e4 | 2607 | bitmap[1] &= ~FATTR4_WORD1_MODE; |
409924e4 | 2608 | ret = NFS_ATTR_FATTR_MODE; |
1da177e4 | 2609 | } |
3110ff80 | 2610 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
409924e4 | 2611 | return ret; |
1da177e4 LT |
2612 | } |
2613 | ||
2614 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2615 | { | |
8687b63a | 2616 | __be32 *p; |
409924e4 | 2617 | int ret = 0; |
1da177e4 LT |
2618 | |
2619 | *nlink = 1; | |
2620 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2621 | return -EIO; | |
2622 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2623 | READ_BUF(4); | |
2624 | READ32(*nlink); | |
2625 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
409924e4 | 2626 | ret = NFS_ATTR_FATTR_NLINK; |
1da177e4 | 2627 | } |
3110ff80 | 2628 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
409924e4 | 2629 | return ret; |
1da177e4 LT |
2630 | } |
2631 | ||
2e42c3e2 | 2632 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2633 | { |
8687b63a AV |
2634 | uint32_t len; |
2635 | __be32 *p; | |
409924e4 | 2636 | int ret = 0; |
1da177e4 LT |
2637 | |
2638 | *uid = -2; | |
2639 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2640 | return -EIO; | |
2641 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2642 | READ_BUF(4); | |
2643 | READ32(len); | |
2644 | READ_BUF(len); | |
2645 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2646 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) |
2647 | ret = NFS_ATTR_FATTR_OWNER; | |
2648 | else | |
1da177e4 | 2649 | dprintk("%s: nfs_map_name_to_uid failed!\n", |
3110ff80 | 2650 | __func__); |
1da177e4 | 2651 | } else |
fe82a183 | 2652 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2653 | __func__, len); |
1da177e4 LT |
2654 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
2655 | } | |
3110ff80 | 2656 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
409924e4 | 2657 | return ret; |
1da177e4 LT |
2658 | } |
2659 | ||
2e42c3e2 | 2660 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2661 | { |
8687b63a AV |
2662 | uint32_t len; |
2663 | __be32 *p; | |
409924e4 | 2664 | int ret = 0; |
1da177e4 LT |
2665 | |
2666 | *gid = -2; | |
2667 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2668 | return -EIO; | |
2669 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2670 | READ_BUF(4); | |
2671 | READ32(len); | |
2672 | READ_BUF(len); | |
2673 | if (len < XDR_MAX_NETOBJ) { | |
409924e4 TM |
2674 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) |
2675 | ret = NFS_ATTR_FATTR_GROUP; | |
2676 | else | |
1da177e4 | 2677 | dprintk("%s: nfs_map_group_to_gid failed!\n", |
3110ff80 | 2678 | __func__); |
1da177e4 | 2679 | } else |
fe82a183 | 2680 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2681 | __func__, len); |
1da177e4 LT |
2682 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
2683 | } | |
3110ff80 | 2684 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
409924e4 | 2685 | return ret; |
1da177e4 LT |
2686 | } |
2687 | ||
2688 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2689 | { | |
8687b63a AV |
2690 | uint32_t major = 0, minor = 0; |
2691 | __be32 *p; | |
409924e4 | 2692 | int ret = 0; |
1da177e4 LT |
2693 | |
2694 | *rdev = MKDEV(0,0); | |
2695 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2696 | return -EIO; | |
2697 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2698 | dev_t tmp; | |
2699 | ||
2700 | READ_BUF(8); | |
2701 | READ32(major); | |
2702 | READ32(minor); | |
2703 | tmp = MKDEV(major, minor); | |
2704 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2705 | *rdev = tmp; | |
2706 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
409924e4 | 2707 | ret = NFS_ATTR_FATTR_RDEV; |
1da177e4 | 2708 | } |
3110ff80 | 2709 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
409924e4 | 2710 | return ret; |
1da177e4 LT |
2711 | } |
2712 | ||
2713 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2714 | { | |
8687b63a | 2715 | __be32 *p; |
1da177e4 LT |
2716 | int status = 0; |
2717 | ||
2718 | *res = 0; | |
2719 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2720 | return -EIO; | |
2721 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2722 | READ_BUF(8); | |
2723 | READ64(*res); | |
2724 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2725 | } | |
3110ff80 | 2726 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2727 | return status; |
2728 | } | |
2729 | ||
2730 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2731 | { | |
8687b63a | 2732 | __be32 *p; |
1da177e4 LT |
2733 | int status = 0; |
2734 | ||
2735 | *res = 0; | |
2736 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2737 | return -EIO; | |
2738 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2739 | READ_BUF(8); | |
2740 | READ64(*res); | |
2741 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2742 | } | |
3110ff80 | 2743 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2744 | return status; |
2745 | } | |
2746 | ||
2747 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2748 | { | |
8687b63a | 2749 | __be32 *p; |
1da177e4 LT |
2750 | int status = 0; |
2751 | ||
2752 | *res = 0; | |
2753 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2754 | return -EIO; | |
2755 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2756 | READ_BUF(8); | |
2757 | READ64(*res); | |
2758 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2759 | } | |
3110ff80 | 2760 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2761 | return status; |
2762 | } | |
2763 | ||
2764 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2765 | { | |
8687b63a | 2766 | __be32 *p; |
409924e4 | 2767 | int ret = 0; |
1da177e4 LT |
2768 | |
2769 | *used = 0; | |
2770 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2771 | return -EIO; | |
2772 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2773 | READ_BUF(8); | |
2774 | READ64(*used); | |
2775 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
409924e4 | 2776 | ret = NFS_ATTR_FATTR_SPACE_USED; |
1da177e4 | 2777 | } |
3110ff80 | 2778 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 | 2779 | (unsigned long long)*used); |
409924e4 | 2780 | return ret; |
1da177e4 LT |
2781 | } |
2782 | ||
2783 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2784 | { | |
8687b63a | 2785 | __be32 *p; |
1da177e4 LT |
2786 | uint64_t sec; |
2787 | uint32_t nsec; | |
2788 | ||
2789 | READ_BUF(12); | |
2790 | READ64(sec); | |
2791 | READ32(nsec); | |
2792 | time->tv_sec = (time_t)sec; | |
2793 | time->tv_nsec = (long)nsec; | |
2794 | return 0; | |
2795 | } | |
2796 | ||
2797 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2798 | { | |
2799 | int status = 0; | |
2800 | ||
2801 | time->tv_sec = 0; | |
2802 | time->tv_nsec = 0; | |
2803 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
2804 | return -EIO; | |
2805 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2806 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2807 | if (status == 0) |
2808 | status = NFS_ATTR_FATTR_ATIME; | |
1da177e4 LT |
2809 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; |
2810 | } | |
3110ff80 | 2811 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2812 | return status; |
2813 | } | |
2814 | ||
2815 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2816 | { | |
2817 | int status = 0; | |
2818 | ||
2819 | time->tv_sec = 0; | |
2820 | time->tv_nsec = 0; | |
2821 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
2822 | return -EIO; | |
2823 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
2824 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2825 | if (status == 0) |
2826 | status = NFS_ATTR_FATTR_CTIME; | |
1da177e4 LT |
2827 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; |
2828 | } | |
3110ff80 | 2829 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2830 | return status; |
2831 | } | |
2832 | ||
2833 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2834 | { | |
2835 | int status = 0; | |
2836 | ||
2837 | time->tv_sec = 0; | |
2838 | time->tv_nsec = 0; | |
2839 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
2840 | return -EIO; | |
2841 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
2842 | status = decode_attr_time(xdr, time); | |
409924e4 TM |
2843 | if (status == 0) |
2844 | status = NFS_ATTR_FATTR_MTIME; | |
1da177e4 LT |
2845 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; |
2846 | } | |
3110ff80 | 2847 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2848 | return status; |
2849 | } | |
2850 | ||
8687b63a | 2851 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
2852 | { |
2853 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
2854 | unsigned int nwords = xdr->p - savep; | |
2855 | ||
2856 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
2857 | dprintk("%s: server returned incorrect attribute length: " |
2858 | "%u %c %u\n", | |
3110ff80 | 2859 | __func__, |
1da177e4 LT |
2860 | attrwords << 2, |
2861 | (attrwords < nwords) ? '<' : '>', | |
2862 | nwords << 2); | |
2863 | return -EIO; | |
2864 | } | |
2865 | return 0; | |
2866 | } | |
2867 | ||
2868 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2869 | { | |
8687b63a | 2870 | __be32 *p; |
1da177e4 LT |
2871 | |
2872 | READ_BUF(20); | |
2873 | READ32(cinfo->atomic); | |
2874 | READ64(cinfo->before); | |
2875 | READ64(cinfo->after); | |
2876 | return 0; | |
2877 | } | |
2878 | ||
2879 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
2880 | { | |
8687b63a | 2881 | __be32 *p; |
1da177e4 LT |
2882 | uint32_t supp, acc; |
2883 | int status; | |
2884 | ||
2885 | status = decode_op_hdr(xdr, OP_ACCESS); | |
2886 | if (status) | |
2887 | return status; | |
2888 | READ_BUF(8); | |
2889 | READ32(supp); | |
2890 | READ32(acc); | |
2891 | access->supported = supp; | |
2892 | access->access = acc; | |
2893 | return 0; | |
2894 | } | |
2895 | ||
2896 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
2897 | { | |
8687b63a | 2898 | __be32 *p; |
1da177e4 LT |
2899 | int status; |
2900 | ||
2901 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
2902 | if (status != -EIO) |
2903 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
2904 | if (status) |
2905 | return status; | |
8ae20abd TM |
2906 | READ_BUF(NFS4_STATEID_SIZE); |
2907 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
2908 | return 0; |
2909 | } | |
2910 | ||
2911 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
2912 | { | |
8687b63a | 2913 | __be32 *p; |
1da177e4 LT |
2914 | int status; |
2915 | ||
2916 | status = decode_op_hdr(xdr, OP_COMMIT); | |
2917 | if (status) | |
2918 | return status; | |
2919 | READ_BUF(8); | |
2920 | COPYMEM(res->verf->verifier, 8); | |
2921 | return 0; | |
2922 | } | |
2923 | ||
2924 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
2925 | { | |
8687b63a | 2926 | __be32 *p; |
1da177e4 LT |
2927 | uint32_t bmlen; |
2928 | int status; | |
2929 | ||
2930 | status = decode_op_hdr(xdr, OP_CREATE); | |
2931 | if (status) | |
2932 | return status; | |
2933 | if ((status = decode_change_info(xdr, cinfo))) | |
2934 | return status; | |
2935 | READ_BUF(4); | |
2936 | READ32(bmlen); | |
2937 | READ_BUF(bmlen << 2); | |
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
2942 | { | |
8687b63a | 2943 | __be32 *savep; |
6c0195a4 | 2944 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
2945 | int status; |
2946 | ||
2947 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
2948 | goto xdr_error; | |
2949 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2950 | goto xdr_error; | |
2951 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2952 | goto xdr_error; | |
2953 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
2954 | goto xdr_error; | |
2955 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
2956 | goto xdr_error; | |
2957 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
2958 | goto xdr_error; | |
2959 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
2960 | goto xdr_error; | |
2961 | status = verify_attr_len(xdr, savep, attrlen); | |
2962 | xdr_error: | |
3110ff80 | 2963 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
2964 | return status; |
2965 | } | |
6c0195a4 | 2966 | |
1da177e4 LT |
2967 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
2968 | { | |
8687b63a | 2969 | __be32 *savep; |
6c0195a4 | 2970 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 2971 | int status; |
6c0195a4 | 2972 | |
1da177e4 LT |
2973 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
2974 | goto xdr_error; | |
2975 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
2976 | goto xdr_error; | |
2977 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
2978 | goto xdr_error; | |
2979 | ||
2980 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
2981 | goto xdr_error; | |
2982 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
2983 | goto xdr_error; | |
2984 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
2985 | goto xdr_error; | |
2986 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
2987 | goto xdr_error; | |
2988 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
2989 | goto xdr_error; | |
2990 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
2991 | goto xdr_error; | |
2992 | ||
2993 | status = verify_attr_len(xdr, savep, attrlen); | |
2994 | xdr_error: | |
3110ff80 | 2995 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
2996 | return status; |
2997 | } | |
2998 | ||
2999 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3000 | { | |
8687b63a | 3001 | __be32 *savep; |
6c0195a4 | 3002 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3003 | int status; |
6c0195a4 | 3004 | |
1da177e4 LT |
3005 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3006 | goto xdr_error; | |
3007 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3008 | goto xdr_error; | |
3009 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3010 | goto xdr_error; | |
3011 | ||
3012 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3013 | goto xdr_error; | |
3014 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3015 | goto xdr_error; | |
3016 | ||
3017 | status = verify_attr_len(xdr, savep, attrlen); | |
3018 | xdr_error: | |
3110ff80 | 3019 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3020 | return status; |
3021 | } | |
3022 | ||
3023 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3024 | { | |
8687b63a | 3025 | __be32 *savep; |
1da177e4 LT |
3026 | uint32_t attrlen, |
3027 | bitmap[2] = {0}, | |
3028 | type; | |
bca79478 TM |
3029 | int status; |
3030 | umode_t fmode = 0; | |
99baf625 | 3031 | uint64_t fileid; |
1da177e4 | 3032 | |
f26c7a78 TM |
3033 | status = decode_op_hdr(xdr, OP_GETATTR); |
3034 | if (status < 0) | |
1da177e4 | 3035 | goto xdr_error; |
f26c7a78 TM |
3036 | |
3037 | status = decode_attr_bitmap(xdr, bitmap); | |
3038 | if (status < 0) | |
1da177e4 LT |
3039 | goto xdr_error; |
3040 | ||
f26c7a78 TM |
3041 | status = decode_attr_length(xdr, &attrlen, &savep); |
3042 | if (status < 0) | |
1da177e4 LT |
3043 | goto xdr_error; |
3044 | ||
3045 | ||
f26c7a78 TM |
3046 | status = decode_attr_type(xdr, bitmap, &type); |
3047 | if (status < 0) | |
1da177e4 | 3048 | goto xdr_error; |
409924e4 TM |
3049 | fattr->mode = 0; |
3050 | if (status != 0) { | |
3051 | fattr->mode |= nfs_type2fmt[type]; | |
3052 | fattr->valid |= status; | |
3053 | } | |
1da177e4 | 3054 | |
f26c7a78 TM |
3055 | status = decode_attr_change(xdr, bitmap, &fattr->change_attr); |
3056 | if (status < 0) | |
1da177e4 | 3057 | goto xdr_error; |
409924e4 | 3058 | fattr->valid |= status; |
f26c7a78 TM |
3059 | |
3060 | status = decode_attr_size(xdr, bitmap, &fattr->size); | |
3061 | if (status < 0) | |
1da177e4 | 3062 | goto xdr_error; |
409924e4 | 3063 | fattr->valid |= status; |
f26c7a78 TM |
3064 | |
3065 | status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); | |
3066 | if (status < 0) | |
1da177e4 | 3067 | goto xdr_error; |
409924e4 | 3068 | fattr->valid |= status; |
f26c7a78 TM |
3069 | |
3070 | status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); | |
3071 | if (status < 0) | |
1da177e4 | 3072 | goto xdr_error; |
409924e4 | 3073 | fattr->valid |= status; |
f26c7a78 TM |
3074 | |
3075 | status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, | |
7aaa0b3b | 3076 | struct nfs4_fs_locations, |
f26c7a78 TM |
3077 | fattr)); |
3078 | if (status < 0) | |
683b57b4 | 3079 | goto xdr_error; |
409924e4 | 3080 | fattr->valid |= status; |
f26c7a78 TM |
3081 | |
3082 | status = decode_attr_mode(xdr, bitmap, &fmode); | |
3083 | if (status < 0) | |
1da177e4 | 3084 | goto xdr_error; |
409924e4 TM |
3085 | if (status != 0) { |
3086 | fattr->mode |= fmode; | |
3087 | fattr->valid |= status; | |
3088 | } | |
f26c7a78 TM |
3089 | |
3090 | status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); | |
3091 | if (status < 0) | |
1da177e4 | 3092 | goto xdr_error; |
409924e4 | 3093 | fattr->valid |= status; |
f26c7a78 TM |
3094 | |
3095 | status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); | |
3096 | if (status < 0) | |
1da177e4 | 3097 | goto xdr_error; |
409924e4 | 3098 | fattr->valid |= status; |
f26c7a78 TM |
3099 | |
3100 | status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); | |
3101 | if (status < 0) | |
1da177e4 | 3102 | goto xdr_error; |
409924e4 | 3103 | fattr->valid |= status; |
f26c7a78 TM |
3104 | |
3105 | status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); | |
3106 | if (status < 0) | |
1da177e4 | 3107 | goto xdr_error; |
409924e4 | 3108 | fattr->valid |= status; |
f26c7a78 TM |
3109 | |
3110 | status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); | |
3111 | if (status < 0) | |
1da177e4 | 3112 | goto xdr_error; |
409924e4 | 3113 | fattr->valid |= status; |
f26c7a78 TM |
3114 | |
3115 | status = decode_attr_time_access(xdr, bitmap, &fattr->atime); | |
3116 | if (status < 0) | |
1da177e4 | 3117 | goto xdr_error; |
409924e4 | 3118 | fattr->valid |= status; |
f26c7a78 TM |
3119 | |
3120 | status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); | |
3121 | if (status < 0) | |
1da177e4 | 3122 | goto xdr_error; |
409924e4 | 3123 | fattr->valid |= status; |
f26c7a78 TM |
3124 | |
3125 | status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); | |
3126 | if (status < 0) | |
1da177e4 | 3127 | goto xdr_error; |
409924e4 | 3128 | fattr->valid |= status; |
f26c7a78 TM |
3129 | |
3130 | status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); | |
3131 | if (status < 0) | |
99baf625 | 3132 | goto xdr_error; |
409924e4 | 3133 | if (status != 0 && !(fattr->valid & status)) { |
99baf625 | 3134 | fattr->fileid = fileid; |
409924e4 TM |
3135 | fattr->valid |= status; |
3136 | } | |
f26c7a78 TM |
3137 | |
3138 | status = verify_attr_len(xdr, savep, attrlen); | |
1da177e4 | 3139 | xdr_error: |
3110ff80 | 3140 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3141 | return status; |
3142 | } | |
3143 | ||
3144 | ||
3145 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3146 | { | |
8687b63a | 3147 | __be32 *savep; |
1da177e4 LT |
3148 | uint32_t attrlen, bitmap[2]; |
3149 | int status; | |
3150 | ||
3151 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3152 | goto xdr_error; | |
3153 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3154 | goto xdr_error; | |
3155 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3156 | goto xdr_error; | |
3157 | ||
3158 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3159 | ||
3160 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3161 | goto xdr_error; | |
3162 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3163 | goto xdr_error; | |
3164 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3165 | goto xdr_error; | |
3166 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3167 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3168 | goto xdr_error; | |
3169 | fsinfo->wtpref = fsinfo->wtmax; | |
3170 | ||
3171 | status = verify_attr_len(xdr, savep, attrlen); | |
3172 | xdr_error: | |
3110ff80 | 3173 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3174 | return status; |
3175 | } | |
3176 | ||
3177 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3178 | { | |
8687b63a | 3179 | __be32 *p; |
1da177e4 LT |
3180 | uint32_t len; |
3181 | int status; | |
3182 | ||
9936781d TM |
3183 | /* Zero handle first to allow comparisons */ |
3184 | memset(fh, 0, sizeof(*fh)); | |
3185 | ||
1da177e4 LT |
3186 | status = decode_op_hdr(xdr, OP_GETFH); |
3187 | if (status) | |
3188 | return status; | |
1da177e4 LT |
3189 | |
3190 | READ_BUF(4); | |
3191 | READ32(len); | |
3192 | if (len > NFS4_FHSIZE) | |
3193 | return -EIO; | |
3194 | fh->size = len; | |
3195 | READ_BUF(len); | |
3196 | COPYMEM(fh->data, len); | |
3197 | return 0; | |
3198 | } | |
3199 | ||
3200 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3201 | { | |
3202 | int status; | |
6c0195a4 | 3203 | |
1da177e4 LT |
3204 | status = decode_op_hdr(xdr, OP_LINK); |
3205 | if (status) | |
3206 | return status; | |
3207 | return decode_change_info(xdr, cinfo); | |
3208 | } | |
3209 | ||
3210 | /* | |
3211 | * We create the owner, so we know a proper owner.id length is 4. | |
3212 | */ | |
911d1aaf | 3213 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3214 | { |
911d1aaf | 3215 | uint64_t offset, length, clientid; |
8687b63a | 3216 | __be32 *p; |
911d1aaf | 3217 | uint32_t namelen, type; |
1da177e4 LT |
3218 | |
3219 | READ_BUF(32); | |
911d1aaf TM |
3220 | READ64(offset); |
3221 | READ64(length); | |
3222 | READ32(type); | |
3223 | if (fl != NULL) { | |
3224 | fl->fl_start = (loff_t)offset; | |
3225 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3226 | if (length == ~(uint64_t)0) | |
3227 | fl->fl_end = OFFSET_MAX; | |
3228 | fl->fl_type = F_WRLCK; | |
3229 | if (type & 1) | |
3230 | fl->fl_type = F_RDLCK; | |
3231 | fl->fl_pid = 0; | |
3232 | } | |
3233 | READ64(clientid); | |
1da177e4 LT |
3234 | READ32(namelen); |
3235 | READ_BUF(namelen); | |
1da177e4 LT |
3236 | return -NFS4ERR_DENIED; |
3237 | } | |
3238 | ||
911d1aaf | 3239 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3240 | { |
8687b63a | 3241 | __be32 *p; |
1da177e4 LT |
3242 | int status; |
3243 | ||
3244 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3245 | if (status == -EIO) |
3246 | goto out; | |
1da177e4 | 3247 | if (status == 0) { |
8ae20abd TM |
3248 | READ_BUF(NFS4_STATEID_SIZE); |
3249 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3250 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3251 | status = decode_lock_denied(xdr, NULL); |
3252 | if (res->open_seqid != NULL) | |
3253 | nfs_increment_open_seqid(status, res->open_seqid); | |
3254 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3255 | out: | |
1da177e4 LT |
3256 | return status; |
3257 | } | |
3258 | ||
911d1aaf | 3259 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3260 | { |
3261 | int status; | |
3262 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3263 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3264 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3265 | return status; |
3266 | } | |
3267 | ||
911d1aaf | 3268 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3269 | { |
8687b63a | 3270 | __be32 *p; |
1da177e4 LT |
3271 | int status; |
3272 | ||
3273 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3274 | if (status != -EIO) |
3275 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3276 | if (status == 0) { |
8ae20abd TM |
3277 | READ_BUF(NFS4_STATEID_SIZE); |
3278 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3279 | } |
3280 | return status; | |
3281 | } | |
3282 | ||
3283 | static int decode_lookup(struct xdr_stream *xdr) | |
3284 | { | |
3285 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3286 | } | |
3287 | ||
3288 | /* This is too sick! */ | |
3289 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3290 | { | |
05d564fe | 3291 | __be32 *p; |
1da177e4 LT |
3292 | uint32_t limit_type, nblocks, blocksize; |
3293 | ||
3294 | READ_BUF(12); | |
3295 | READ32(limit_type); | |
3296 | switch (limit_type) { | |
05d564fe AA |
3297 | case 1: |
3298 | READ64(*maxsize); | |
3299 | break; | |
3300 | case 2: | |
3301 | READ32(nblocks); | |
3302 | READ32(blocksize); | |
3303 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3304 | } |
3305 | return 0; | |
3306 | } | |
3307 | ||
3308 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3309 | { | |
05d564fe AA |
3310 | __be32 *p; |
3311 | uint32_t delegation_type; | |
1da177e4 LT |
3312 | |
3313 | READ_BUF(4); | |
3314 | READ32(delegation_type); | |
3315 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3316 | res->delegation_type = 0; | |
3317 | return 0; | |
3318 | } | |
8ae20abd TM |
3319 | READ_BUF(NFS4_STATEID_SIZE+4); |
3320 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3321 | READ32(res->do_recall); |
05d564fe | 3322 | |
1da177e4 | 3323 | switch (delegation_type) { |
05d564fe AA |
3324 | case NFS4_OPEN_DELEGATE_READ: |
3325 | res->delegation_type = FMODE_READ; | |
3326 | break; | |
3327 | case NFS4_OPEN_DELEGATE_WRITE: | |
3328 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3329 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3330 | return -EIO; |
3331 | } | |
7539bbab | 3332 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3333 | } |
3334 | ||
3335 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3336 | { | |
05d564fe | 3337 | __be32 *p; |
aa53ed54 | 3338 | uint32_t savewords, bmlen, i; |
05d564fe | 3339 | int status; |
1da177e4 | 3340 | |
05d564fe | 3341 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3342 | if (status != -EIO) |
3343 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3344 | if (status) |
3345 | return status; | |
3346 | READ_BUF(NFS4_STATEID_SIZE); | |
3347 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3348 | |
05d564fe | 3349 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3350 | |
05d564fe AA |
3351 | READ_BUF(8); |
3352 | READ32(res->rflags); | |
3353 | READ32(bmlen); | |
3354 | if (bmlen > 10) | |
3355 | goto xdr_error; | |
1da177e4 | 3356 | |
05d564fe | 3357 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3358 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3359 | for (i = 0; i < savewords; ++i) | |
3360 | READ32(res->attrset[i]); | |
3361 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3362 | res->attrset[i] = 0; | |
3363 | ||
1da177e4 LT |
3364 | return decode_delegation(xdr, res); |
3365 | xdr_error: | |
3110ff80 | 3366 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3367 | return -EIO; |
3368 | } | |
3369 | ||
3370 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3371 | { | |
05d564fe | 3372 | __be32 *p; |
1da177e4 LT |
3373 | int status; |
3374 | ||
05d564fe | 3375 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3376 | if (status != -EIO) |
3377 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3378 | if (status) |
3379 | return status; | |
3380 | READ_BUF(NFS4_STATEID_SIZE); | |
3381 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3382 | return 0; | |
1da177e4 LT |
3383 | } |
3384 | ||
3385 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3386 | { | |
8687b63a | 3387 | __be32 *p; |
1da177e4 LT |
3388 | int status; |
3389 | ||
3390 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3391 | if (status != -EIO) |
3392 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3393 | if (status) |
3394 | return status; | |
8ae20abd TM |
3395 | READ_BUF(NFS4_STATEID_SIZE); |
3396 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3397 | return 0; |
3398 | } | |
3399 | ||
3400 | static int decode_putfh(struct xdr_stream *xdr) | |
3401 | { | |
3402 | return decode_op_hdr(xdr, OP_PUTFH); | |
3403 | } | |
3404 | ||
3405 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3406 | { | |
3407 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3408 | } | |
3409 | ||
3410 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3411 | { | |
3412 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3413 | __be32 *p; |
1da177e4 LT |
3414 | uint32_t count, eof, recvd, hdrlen; |
3415 | int status; | |
3416 | ||
3417 | status = decode_op_hdr(xdr, OP_READ); | |
3418 | if (status) | |
3419 | return status; | |
3420 | READ_BUF(8); | |
3421 | READ32(eof); | |
3422 | READ32(count); | |
3423 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3424 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3425 | if (count > recvd) { | |
fe82a183 | 3426 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3427 | "count %u > recvd %u\n", count, recvd); |
3428 | count = recvd; | |
3429 | eof = 0; | |
3430 | } | |
3431 | xdr_read_pages(xdr, count); | |
3432 | res->eof = eof; | |
3433 | res->count = count; | |
3434 | return 0; | |
3435 | } | |
3436 | ||
3437 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3438 | { | |
3439 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3440 | struct page *page = *rcvbuf->pages; | |
3441 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3442 | size_t hdrlen; |
3443 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3444 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3445 | unsigned int nr = 0; |
bcecff77 | 3446 | int status; |
1da177e4 LT |
3447 | |
3448 | status = decode_op_hdr(xdr, OP_READDIR); | |
3449 | if (status) | |
3450 | return status; | |
3451 | READ_BUF(8); | |
3452 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3453 | dprintk("%s: verifier = %08x:%08x\n", |
3454 | __func__, | |
eadf4598 TM |
3455 | ((u32 *)readdir->verifier.data)[0], |
3456 | ((u32 *)readdir->verifier.data)[1]); | |
3457 | ||
1da177e4 LT |
3458 | |
3459 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3460 | recvd = rcvbuf->len - hdrlen; | |
3461 | if (pglen > recvd) | |
3462 | pglen = recvd; | |
3463 | xdr_read_pages(xdr, pglen); | |
3464 | ||
3465 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3466 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3467 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3468 | entry = p; |
7bda2cdf JL |
3469 | |
3470 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3471 | if ((entry + 1) > end) | |
3472 | goto short_pkt; | |
3473 | ||
3474 | for (; *p++; nr++) { | |
bcecff77 | 3475 | u32 len, attrlen, xlen; |
e8896495 | 3476 | if (end - p < 3) |
1da177e4 | 3477 | goto short_pkt; |
eadf4598 | 3478 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3479 | p += 2; /* cookie */ |
3480 | len = ntohl(*p++); /* filename length */ | |
3481 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3482 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3483 | len); | |
1da177e4 LT |
3484 | goto err_unmap; |
3485 | } | |
e8896495 DH |
3486 | xlen = XDR_QUADLEN(len); |
3487 | if (end - p < xlen + 1) | |
1da177e4 | 3488 | goto short_pkt; |
e8896495 DH |
3489 | dprintk("filename = %*s\n", len, (char *)p); |
3490 | p += xlen; | |
1da177e4 | 3491 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3492 | if (end - p < len + 1) |
1da177e4 | 3493 | goto short_pkt; |
e8896495 | 3494 | p += len; |
1da177e4 | 3495 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3496 | if (end - p < attrlen + 2) |
1da177e4 | 3497 | goto short_pkt; |
e8896495 | 3498 | p += attrlen; /* attributes */ |
1da177e4 LT |
3499 | entry = p; |
3500 | } | |
7bda2cdf JL |
3501 | /* |
3502 | * Apparently some server sends responses that are a valid size, but | |
3503 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3504 | * those, just set the EOF marker. | |
3505 | */ | |
3506 | if (!nr && entry[1] == 0) { | |
3507 | dprintk("NFS: readdir reply truncated!\n"); | |
3508 | entry[1] = 1; | |
3509 | } | |
6c0195a4 | 3510 | out: |
1da177e4 LT |
3511 | kunmap_atomic(kaddr, KM_USER0); |
3512 | return 0; | |
3513 | short_pkt: | |
7bda2cdf JL |
3514 | /* |
3515 | * When we get a short packet there are 2 possibilities. We can | |
3516 | * return an error, or fix up the response to look like a valid | |
3517 | * response and return what we have so far. If there are no | |
3518 | * entries and the packet was short, then return -EIO. If there | |
3519 | * are valid entries in the response, return them and pretend that | |
3520 | * the call was successful, but incomplete. The caller can retry the | |
3521 | * readdir starting at the last cookie. | |
3522 | */ | |
3110ff80 | 3523 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3524 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3525 | if (nr) |
3526 | goto out; | |
1da177e4 LT |
3527 | err_unmap: |
3528 | kunmap_atomic(kaddr, KM_USER0); | |
3529 | return -errno_NFSERR_IO; | |
3530 | } | |
3531 | ||
3532 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3533 | { | |
3534 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3535 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3536 | size_t hdrlen; |
3537 | u32 len, recvd; | |
8687b63a | 3538 | __be32 *p; |
1da177e4 LT |
3539 | char *kaddr; |
3540 | int status; | |
3541 | ||
3542 | status = decode_op_hdr(xdr, OP_READLINK); | |
3543 | if (status) | |
3544 | return status; | |
3545 | ||
3546 | /* Convert length of symlink */ | |
3547 | READ_BUF(4); | |
3548 | READ32(len); | |
3549 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3550 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3551 | return -ENAMETOOLONG; |
3552 | } | |
3553 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3554 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3555 | if (recvd < len) { | |
fe82a183 | 3556 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3557 | "count %u > recvd %u\n", len, recvd); |
3558 | return -EIO; | |
3559 | } | |
3560 | xdr_read_pages(xdr, len); | |
3561 | /* | |
3562 | * The XDR encode routine has set things up so that | |
3563 | * the link text will be copied directly into the | |
3564 | * buffer. We just have to do overflow-checking, | |
3565 | * and and null-terminate the text (the VFS expects | |
3566 | * null-termination). | |
3567 | */ | |
3568 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3569 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3570 | kunmap_atomic(kaddr, KM_USER0); | |
3571 | return 0; | |
3572 | } | |
3573 | ||
3574 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3575 | { | |
3576 | int status; | |
3577 | ||
3578 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3579 | if (status) | |
3580 | goto out; | |
3581 | status = decode_change_info(xdr, cinfo); | |
3582 | out: | |
3583 | return status; | |
3584 | } | |
3585 | ||
3586 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3587 | struct nfs4_change_info *new_cinfo) | |
3588 | { | |
3589 | int status; | |
3590 | ||
3591 | status = decode_op_hdr(xdr, OP_RENAME); | |
3592 | if (status) | |
3593 | goto out; | |
3594 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3595 | goto out; | |
3596 | status = decode_change_info(xdr, new_cinfo); | |
3597 | out: | |
3598 | return status; | |
3599 | } | |
3600 | ||
3601 | static int decode_renew(struct xdr_stream *xdr) | |
3602 | { | |
3603 | return decode_op_hdr(xdr, OP_RENEW); | |
3604 | } | |
3605 | ||
56ae19f3 TM |
3606 | static int |
3607 | decode_restorefh(struct xdr_stream *xdr) | |
3608 | { | |
3609 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3610 | } | |
3611 | ||
029d105e BF |
3612 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3613 | size_t *acl_len) | |
3614 | { | |
8687b63a | 3615 | __be32 *savep; |
029d105e BF |
3616 | uint32_t attrlen, |
3617 | bitmap[2] = {0}; | |
3618 | struct kvec *iov = req->rq_rcv_buf.head; | |
3619 | int status; | |
3620 | ||
3621 | *acl_len = 0; | |
3622 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3623 | goto out; | |
3624 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3625 | goto out; | |
3626 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3627 | goto out; | |
3628 | ||
3629 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3630 | return -EIO; | |
3631 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
3632 | size_t hdrlen; |
3633 | u32 recvd; | |
029d105e BF |
3634 | |
3635 | /* We ignore &savep and don't do consistency checks on | |
3636 | * the attr length. Let userspace figure it out.... */ | |
3637 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3638 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3639 | if (attrlen > recvd) { | |
fe82a183 | 3640 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
3641 | " acl reply: attrlen %u > recvd %u\n", |
3642 | attrlen, recvd); | |
3643 | return -EINVAL; | |
3644 | } | |
c04871e6 | 3645 | xdr_read_pages(xdr, attrlen); |
029d105e | 3646 | *acl_len = attrlen; |
8c233cf9 BF |
3647 | } else |
3648 | status = -EOPNOTSUPP; | |
029d105e BF |
3649 | |
3650 | out: | |
3651 | return status; | |
3652 | } | |
3653 | ||
1da177e4 LT |
3654 | static int |
3655 | decode_savefh(struct xdr_stream *xdr) | |
3656 | { | |
3657 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3658 | } | |
3659 | ||
3660 | static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) | |
3661 | { | |
8687b63a | 3662 | __be32 *p; |
1da177e4 LT |
3663 | uint32_t bmlen; |
3664 | int status; | |
3665 | ||
1da177e4 LT |
3666 | status = decode_op_hdr(xdr, OP_SETATTR); |
3667 | if (status) | |
3668 | return status; | |
3669 | READ_BUF(4); | |
3670 | READ32(bmlen); | |
3671 | READ_BUF(bmlen << 2); | |
3672 | return 0; | |
3673 | } | |
3674 | ||
adfa6f98 | 3675 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3676 | { |
8687b63a | 3677 | __be32 *p; |
1da177e4 LT |
3678 | uint32_t opnum; |
3679 | int32_t nfserr; | |
3680 | ||
3681 | READ_BUF(8); | |
3682 | READ32(opnum); | |
3683 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 3684 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 3685 | " %d\n", opnum); |
1da177e4 LT |
3686 | return -EIO; |
3687 | } | |
3688 | READ32(nfserr); | |
3689 | if (nfserr == NFS_OK) { | |
8ae20abd | 3690 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3691 | READ64(clp->cl_clientid); |
8ae20abd | 3692 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3693 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3694 | uint32_t len; | |
3695 | ||
3696 | /* skip netid string */ | |
3697 | READ_BUF(4); | |
3698 | READ32(len); | |
3699 | READ_BUF(len); | |
3700 | ||
3701 | /* skip uaddr string */ | |
3702 | READ_BUF(4); | |
3703 | READ32(len); | |
3704 | READ_BUF(len); | |
3705 | return -NFSERR_CLID_INUSE; | |
3706 | } else | |
856dff3d | 3707 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3708 | |
3709 | return 0; | |
3710 | } | |
3711 | ||
3712 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3713 | { | |
3714 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3715 | } | |
3716 | ||
3717 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3718 | { | |
8687b63a | 3719 | __be32 *p; |
1da177e4 LT |
3720 | int status; |
3721 | ||
3722 | status = decode_op_hdr(xdr, OP_WRITE); | |
3723 | if (status) | |
3724 | return status; | |
3725 | ||
3726 | READ_BUF(16); | |
3727 | READ32(res->count); | |
3728 | READ32(res->verf->committed); | |
3729 | COPYMEM(res->verf->verifier, 8); | |
3730 | return 0; | |
3731 | } | |
3732 | ||
3733 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3734 | { | |
3735 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3736 | } | |
3737 | ||
49c2559e BH |
3738 | /* |
3739 | * END OF "GENERIC" DECODE ROUTINES. | |
3740 | */ | |
3741 | ||
1da177e4 LT |
3742 | /* |
3743 | * Decode OPEN_DOWNGRADE response | |
3744 | */ | |
8687b63a | 3745 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 3746 | { |
05d564fe AA |
3747 | struct xdr_stream xdr; |
3748 | struct compound_hdr hdr; | |
3749 | int status; | |
3750 | ||
3751 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3752 | status = decode_compound_hdr(&xdr, &hdr); | |
3753 | if (status) | |
3754 | goto out; | |
3755 | status = decode_putfh(&xdr); | |
3756 | if (status) | |
3757 | goto out; | |
3758 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3759 | if (status != 0) |
3760 | goto out; | |
3761 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 3762 | out: |
05d564fe | 3763 | return status; |
1da177e4 LT |
3764 | } |
3765 | ||
1da177e4 LT |
3766 | /* |
3767 | * Decode ACCESS response | |
3768 | */ | |
8687b63a | 3769 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3770 | { |
3771 | struct xdr_stream xdr; | |
3772 | struct compound_hdr hdr; | |
3773 | int status; | |
6c0195a4 | 3774 | |
1da177e4 LT |
3775 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3776 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3777 | goto out; | |
76b32999 TM |
3778 | status = decode_putfh(&xdr); |
3779 | if (status != 0) | |
3780 | goto out; | |
3781 | status = decode_access(&xdr, res); | |
3782 | if (status != 0) | |
3783 | goto out; | |
3784 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3785 | out: |
3786 | return status; | |
3787 | } | |
3788 | ||
3789 | /* | |
3790 | * Decode LOOKUP response | |
3791 | */ | |
8687b63a | 3792 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3793 | { |
3794 | struct xdr_stream xdr; | |
3795 | struct compound_hdr hdr; | |
3796 | int status; | |
6c0195a4 | 3797 | |
1da177e4 LT |
3798 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3799 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3800 | goto out; | |
3801 | if ((status = decode_putfh(&xdr)) != 0) | |
3802 | goto out; | |
3803 | if ((status = decode_lookup(&xdr)) != 0) | |
3804 | goto out; | |
3805 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3806 | goto out; | |
3807 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3808 | out: | |
3809 | return status; | |
3810 | } | |
3811 | ||
3812 | /* | |
3813 | * Decode LOOKUP_ROOT response | |
3814 | */ | |
8687b63a | 3815 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3816 | { |
3817 | struct xdr_stream xdr; | |
3818 | struct compound_hdr hdr; | |
3819 | int status; | |
6c0195a4 | 3820 | |
1da177e4 LT |
3821 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3822 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3823 | goto out; | |
3824 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3825 | goto out; | |
3826 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3827 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3828 | out: | |
3829 | return status; | |
3830 | } | |
3831 | ||
3832 | /* | |
3833 | * Decode REMOVE response | |
3834 | */ | |
4fdc17b2 | 3835 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
3836 | { |
3837 | struct xdr_stream xdr; | |
3838 | struct compound_hdr hdr; | |
3839 | int status; | |
6c0195a4 | 3840 | |
1da177e4 LT |
3841 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3842 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3843 | goto out; | |
16e42959 TM |
3844 | if ((status = decode_putfh(&xdr)) != 0) |
3845 | goto out; | |
3846 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3847 | goto out; | |
4fdc17b2 | 3848 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
3849 | out: |
3850 | return status; | |
3851 | } | |
3852 | ||
3853 | /* | |
3854 | * Decode RENAME response | |
3855 | */ | |
8687b63a | 3856 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3857 | { |
3858 | struct xdr_stream xdr; | |
3859 | struct compound_hdr hdr; | |
3860 | int status; | |
6c0195a4 | 3861 | |
1da177e4 LT |
3862 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3863 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3864 | goto out; | |
3865 | if ((status = decode_putfh(&xdr)) != 0) | |
3866 | goto out; | |
3867 | if ((status = decode_savefh(&xdr)) != 0) | |
3868 | goto out; | |
3869 | if ((status = decode_putfh(&xdr)) != 0) | |
3870 | goto out; | |
6caf2c82 TM |
3871 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
3872 | goto out; | |
3873 | /* Current FH is target directory */ | |
3874 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
3875 | goto out; | |
3876 | if ((status = decode_restorefh(&xdr)) != 0) | |
3877 | goto out; | |
3878 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
3879 | out: |
3880 | return status; | |
3881 | } | |
3882 | ||
3883 | /* | |
3884 | * Decode LINK response | |
3885 | */ | |
8687b63a | 3886 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
3887 | { |
3888 | struct xdr_stream xdr; | |
3889 | struct compound_hdr hdr; | |
3890 | int status; | |
6c0195a4 | 3891 | |
1da177e4 LT |
3892 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3893 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3894 | goto out; | |
3895 | if ((status = decode_putfh(&xdr)) != 0) | |
3896 | goto out; | |
3897 | if ((status = decode_savefh(&xdr)) != 0) | |
3898 | goto out; | |
3899 | if ((status = decode_putfh(&xdr)) != 0) | |
3900 | goto out; | |
91ba2eee TM |
3901 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
3902 | goto out; | |
3903 | /* | |
3904 | * Note order: OP_LINK leaves the directory as the current | |
3905 | * filehandle. | |
3906 | */ | |
3907 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
3908 | goto out; | |
3909 | if ((status = decode_restorefh(&xdr)) != 0) | |
3910 | goto out; | |
3911 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3912 | out: |
3913 | return status; | |
3914 | } | |
3915 | ||
3916 | /* | |
3917 | * Decode CREATE response | |
3918 | */ | |
8687b63a | 3919 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3920 | { |
3921 | struct xdr_stream xdr; | |
3922 | struct compound_hdr hdr; | |
3923 | int status; | |
6c0195a4 | 3924 | |
1da177e4 LT |
3925 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3926 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3927 | goto out; | |
3928 | if ((status = decode_putfh(&xdr)) != 0) | |
3929 | goto out; | |
56ae19f3 TM |
3930 | if ((status = decode_savefh(&xdr)) != 0) |
3931 | goto out; | |
1da177e4 LT |
3932 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
3933 | goto out; | |
3934 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3935 | goto out; | |
56ae19f3 TM |
3936 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
3937 | goto out; | |
3938 | if ((status = decode_restorefh(&xdr)) != 0) | |
3939 | goto out; | |
3940 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
3941 | out: |
3942 | return status; | |
3943 | } | |
3944 | ||
3945 | /* | |
3946 | * Decode SYMLINK response | |
3947 | */ | |
8687b63a | 3948 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
3949 | { |
3950 | return nfs4_xdr_dec_create(rqstp, p, res); | |
3951 | } | |
3952 | ||
3953 | /* | |
3954 | * Decode GETATTR response | |
3955 | */ | |
8687b63a | 3956 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
3957 | { |
3958 | struct xdr_stream xdr; | |
3959 | struct compound_hdr hdr; | |
3960 | int status; | |
6c0195a4 | 3961 | |
1da177e4 LT |
3962 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3963 | status = decode_compound_hdr(&xdr, &hdr); | |
3964 | if (status) | |
3965 | goto out; | |
3966 | status = decode_putfh(&xdr); | |
3967 | if (status) | |
3968 | goto out; | |
3969 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3970 | out: | |
3971 | return status; | |
1da177e4 LT |
3972 | } |
3973 | ||
23ec6965 BF |
3974 | /* |
3975 | * Encode an SETACL request | |
3976 | */ | |
3977 | static int | |
8687b63a | 3978 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 3979 | { |
05d564fe AA |
3980 | struct xdr_stream xdr; |
3981 | struct compound_hdr hdr = { | |
d017931c | 3982 | .nops = 0, |
05d564fe AA |
3983 | }; |
3984 | int status; | |
3985 | ||
3986 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
3987 | encode_compound_hdr(&xdr, &hdr); | |
cf8cdbe5 | 3988 | encode_putfh(&xdr, args->fh, &hdr); |
d017931c | 3989 | status = encode_setacl(&xdr, args, &hdr); |
d017931c | 3990 | encode_nops(&hdr); |
05d564fe | 3991 | return status; |
23ec6965 | 3992 | } |
05d564fe | 3993 | |
23ec6965 BF |
3994 | /* |
3995 | * Decode SETACL response | |
3996 | */ | |
3997 | static int | |
8687b63a | 3998 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) |
23ec6965 BF |
3999 | { |
4000 | struct xdr_stream xdr; | |
4001 | struct compound_hdr hdr; | |
4002 | int status; | |
4003 | ||
4004 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4005 | status = decode_compound_hdr(&xdr, &hdr); | |
4006 | if (status) | |
4007 | goto out; | |
4008 | status = decode_putfh(&xdr); | |
4009 | if (status) | |
4010 | goto out; | |
4011 | status = decode_setattr(&xdr, res); | |
4012 | out: | |
4013 | return status; | |
4014 | } | |
1da177e4 | 4015 | |
029d105e BF |
4016 | /* |
4017 | * Decode GETACL response | |
4018 | */ | |
4019 | static int | |
8687b63a | 4020 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) |
029d105e BF |
4021 | { |
4022 | struct xdr_stream xdr; | |
4023 | struct compound_hdr hdr; | |
4024 | int status; | |
4025 | ||
4026 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4027 | status = decode_compound_hdr(&xdr, &hdr); | |
4028 | if (status) | |
4029 | goto out; | |
4030 | status = decode_putfh(&xdr); | |
4031 | if (status) | |
4032 | goto out; | |
4033 | status = decode_getacl(&xdr, rqstp, acl_len); | |
4034 | ||
4035 | out: | |
4036 | return status; | |
4037 | } | |
4038 | ||
1da177e4 LT |
4039 | /* |
4040 | * Decode CLOSE response | |
4041 | */ | |
8687b63a | 4042 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4043 | { |
05d564fe AA |
4044 | struct xdr_stream xdr; |
4045 | struct compound_hdr hdr; | |
4046 | int status; | |
4047 | ||
4048 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4049 | status = decode_compound_hdr(&xdr, &hdr); | |
4050 | if (status) | |
4051 | goto out; | |
4052 | status = decode_putfh(&xdr); | |
4053 | if (status) | |
4054 | goto out; | |
4055 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4056 | if (status != 0) |
4057 | goto out; | |
4058 | /* | |
4059 | * Note: Server may do delete on close for this file | |
4060 | * in which case the getattr call will fail with | |
4061 | * an ESTALE error. Shouldn't be a problem, | |
4062 | * though, since fattr->valid will remain unset. | |
4063 | */ | |
4064 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4065 | out: |
05d564fe | 4066 | return status; |
1da177e4 LT |
4067 | } |
4068 | ||
4069 | /* | |
4070 | * Decode OPEN response | |
4071 | */ | |
8687b63a | 4072 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4073 | { |
05d564fe AA |
4074 | struct xdr_stream xdr; |
4075 | struct compound_hdr hdr; | |
4076 | int status; | |
4077 | ||
4078 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4079 | status = decode_compound_hdr(&xdr, &hdr); | |
4080 | if (status) | |
4081 | goto out; | |
4082 | status = decode_putfh(&xdr); | |
4083 | if (status) | |
4084 | goto out; | |
4085 | status = decode_savefh(&xdr); | |
4086 | if (status) | |
4087 | goto out; | |
4088 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4089 | if (status) |
4090 | goto out; | |
9936781d | 4091 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4092 | goto out; |
56ae19f3 TM |
4093 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4094 | goto out; | |
365c8f58 | 4095 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4096 | goto out; |
4097 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4098 | out: |
05d564fe | 4099 | return status; |
1da177e4 LT |
4100 | } |
4101 | ||
4102 | /* | |
4103 | * Decode OPEN_CONFIRM response | |
4104 | */ | |
8687b63a | 4105 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4106 | { |
05d564fe AA |
4107 | struct xdr_stream xdr; |
4108 | struct compound_hdr hdr; | |
4109 | int status; | |
4110 | ||
4111 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4112 | status = decode_compound_hdr(&xdr, &hdr); | |
4113 | if (status) | |
4114 | goto out; | |
4115 | status = decode_putfh(&xdr); | |
4116 | if (status) | |
4117 | goto out; | |
4118 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4119 | out: |
05d564fe | 4120 | return status; |
1da177e4 LT |
4121 | } |
4122 | ||
4123 | /* | |
4124 | * Decode OPEN response | |
4125 | */ | |
8687b63a | 4126 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4127 | { |
05d564fe AA |
4128 | struct xdr_stream xdr; |
4129 | struct compound_hdr hdr; | |
4130 | int status; | |
4131 | ||
4132 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4133 | status = decode_compound_hdr(&xdr, &hdr); | |
4134 | if (status) | |
4135 | goto out; | |
4136 | status = decode_putfh(&xdr); | |
4137 | if (status) | |
4138 | goto out; | |
4139 | status = decode_open(&xdr, res); | |
4140 | if (status) | |
4141 | goto out; | |
864472e9 | 4142 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4143 | out: |
05d564fe | 4144 | return status; |
1da177e4 LT |
4145 | } |
4146 | ||
4147 | /* | |
4148 | * Decode SETATTR response | |
4149 | */ | |
8687b63a | 4150 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4151 | { |
05d564fe AA |
4152 | struct xdr_stream xdr; |
4153 | struct compound_hdr hdr; | |
4154 | int status; | |
4155 | ||
4156 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4157 | status = decode_compound_hdr(&xdr, &hdr); | |
4158 | if (status) | |
4159 | goto out; | |
4160 | status = decode_putfh(&xdr); | |
4161 | if (status) | |
4162 | goto out; | |
4163 | status = decode_setattr(&xdr, res); | |
4164 | if (status) | |
4165 | goto out; | |
78f945f8 | 4166 | decode_getfattr(&xdr, res->fattr, res->server); |
1da177e4 | 4167 | out: |
05d564fe | 4168 | return status; |
1da177e4 LT |
4169 | } |
4170 | ||
4171 | /* | |
4172 | * Decode LOCK response | |
4173 | */ | |
8687b63a | 4174 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4175 | { |
4176 | struct xdr_stream xdr; | |
4177 | struct compound_hdr hdr; | |
4178 | int status; | |
4179 | ||
4180 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4181 | status = decode_compound_hdr(&xdr, &hdr); | |
4182 | if (status) | |
4183 | goto out; | |
4184 | status = decode_putfh(&xdr); | |
4185 | if (status) | |
4186 | goto out; | |
4187 | status = decode_lock(&xdr, res); | |
4188 | out: | |
4189 | return status; | |
4190 | } | |
4191 | ||
4192 | /* | |
4193 | * Decode LOCKT response | |
4194 | */ | |
8687b63a | 4195 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4196 | { |
4197 | struct xdr_stream xdr; | |
4198 | struct compound_hdr hdr; | |
4199 | int status; | |
4200 | ||
4201 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4202 | status = decode_compound_hdr(&xdr, &hdr); | |
4203 | if (status) | |
4204 | goto out; | |
4205 | status = decode_putfh(&xdr); | |
4206 | if (status) | |
4207 | goto out; | |
4208 | status = decode_lockt(&xdr, res); | |
4209 | out: | |
4210 | return status; | |
4211 | } | |
4212 | ||
4213 | /* | |
4214 | * Decode LOCKU response | |
4215 | */ | |
8687b63a | 4216 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4217 | { |
4218 | struct xdr_stream xdr; | |
4219 | struct compound_hdr hdr; | |
4220 | int status; | |
4221 | ||
4222 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4223 | status = decode_compound_hdr(&xdr, &hdr); | |
4224 | if (status) | |
4225 | goto out; | |
4226 | status = decode_putfh(&xdr); | |
4227 | if (status) | |
4228 | goto out; | |
4229 | status = decode_locku(&xdr, res); | |
4230 | out: | |
4231 | return status; | |
4232 | } | |
4233 | ||
4234 | /* | |
4235 | * Decode READLINK response | |
4236 | */ | |
8687b63a | 4237 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) |
1da177e4 LT |
4238 | { |
4239 | struct xdr_stream xdr; | |
4240 | struct compound_hdr hdr; | |
4241 | int status; | |
4242 | ||
4243 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4244 | status = decode_compound_hdr(&xdr, &hdr); | |
4245 | if (status) | |
4246 | goto out; | |
4247 | status = decode_putfh(&xdr); | |
4248 | if (status) | |
4249 | goto out; | |
4250 | status = decode_readlink(&xdr, rqstp); | |
4251 | out: | |
4252 | return status; | |
4253 | } | |
4254 | ||
4255 | /* | |
4256 | * Decode READDIR response | |
4257 | */ | |
8687b63a | 4258 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4259 | { |
4260 | struct xdr_stream xdr; | |
4261 | struct compound_hdr hdr; | |
4262 | int status; | |
4263 | ||
4264 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4265 | status = decode_compound_hdr(&xdr, &hdr); | |
4266 | if (status) | |
4267 | goto out; | |
4268 | status = decode_putfh(&xdr); | |
4269 | if (status) | |
4270 | goto out; | |
4271 | status = decode_readdir(&xdr, rqstp, res); | |
4272 | out: | |
4273 | return status; | |
4274 | } | |
4275 | ||
4276 | /* | |
4277 | * Decode Read response | |
4278 | */ | |
8687b63a | 4279 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4280 | { |
4281 | struct xdr_stream xdr; | |
4282 | struct compound_hdr hdr; | |
4283 | int status; | |
4284 | ||
4285 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4286 | status = decode_compound_hdr(&xdr, &hdr); | |
4287 | if (status) | |
4288 | goto out; | |
4289 | status = decode_putfh(&xdr); | |
4290 | if (status) | |
4291 | goto out; | |
4292 | status = decode_read(&xdr, rqstp, res); | |
4293 | if (!status) | |
4294 | status = res->count; | |
4295 | out: | |
4296 | return status; | |
4297 | } | |
4298 | ||
4299 | /* | |
4300 | * Decode WRITE response | |
4301 | */ | |
8687b63a | 4302 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4303 | { |
4304 | struct xdr_stream xdr; | |
4305 | struct compound_hdr hdr; | |
4306 | int status; | |
4307 | ||
4308 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4309 | status = decode_compound_hdr(&xdr, &hdr); | |
4310 | if (status) | |
4311 | goto out; | |
4312 | status = decode_putfh(&xdr); | |
4313 | if (status) | |
4314 | goto out; | |
4315 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4316 | if (status) |
4317 | goto out; | |
4318 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4319 | if (!status) |
4320 | status = res->count; | |
4321 | out: | |
4322 | return status; | |
4323 | } | |
4324 | ||
4325 | /* | |
4326 | * Decode COMMIT response | |
4327 | */ | |
8687b63a | 4328 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4329 | { |
4330 | struct xdr_stream xdr; | |
4331 | struct compound_hdr hdr; | |
4332 | int status; | |
4333 | ||
4334 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4335 | status = decode_compound_hdr(&xdr, &hdr); | |
4336 | if (status) | |
4337 | goto out; | |
4338 | status = decode_putfh(&xdr); | |
4339 | if (status) | |
4340 | goto out; | |
4341 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4342 | if (status) |
4343 | goto out; | |
4344 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4345 | out: |
4346 | return status; | |
4347 | } | |
4348 | ||
4349 | /* | |
4350 | * FSINFO request | |
4351 | */ | |
8687b63a | 4352 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4353 | { |
4354 | struct xdr_stream xdr; | |
4355 | struct compound_hdr hdr; | |
4356 | int status; | |
4357 | ||
4358 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4359 | status = decode_compound_hdr(&xdr, &hdr); | |
4360 | if (!status) | |
4361 | status = decode_putfh(&xdr); | |
4362 | if (!status) | |
4363 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4364 | return status; |
4365 | } | |
4366 | ||
4367 | /* | |
4368 | * PATHCONF request | |
4369 | */ | |
8687b63a | 4370 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) |
1da177e4 LT |
4371 | { |
4372 | struct xdr_stream xdr; | |
4373 | struct compound_hdr hdr; | |
4374 | int status; | |
4375 | ||
4376 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4377 | status = decode_compound_hdr(&xdr, &hdr); | |
4378 | if (!status) | |
4379 | status = decode_putfh(&xdr); | |
4380 | if (!status) | |
4381 | status = decode_pathconf(&xdr, pathconf); | |
4382 | return status; | |
4383 | } | |
4384 | ||
4385 | /* | |
4386 | * STATFS request | |
4387 | */ | |
8687b63a | 4388 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) |
1da177e4 LT |
4389 | { |
4390 | struct xdr_stream xdr; | |
4391 | struct compound_hdr hdr; | |
4392 | int status; | |
4393 | ||
4394 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4395 | status = decode_compound_hdr(&xdr, &hdr); | |
4396 | if (!status) | |
4397 | status = decode_putfh(&xdr); | |
4398 | if (!status) | |
4399 | status = decode_statfs(&xdr, fsstat); | |
4400 | return status; | |
4401 | } | |
4402 | ||
4403 | /* | |
4404 | * GETATTR_BITMAP request | |
4405 | */ | |
8687b63a | 4406 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4407 | { |
4408 | struct xdr_stream xdr; | |
4409 | struct compound_hdr hdr; | |
4410 | int status; | |
4411 | ||
4412 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4413 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4414 | goto out; | |
4415 | if ((status = decode_putfh(&xdr)) != 0) | |
4416 | goto out; | |
4417 | status = decode_server_caps(&xdr, res); | |
4418 | out: | |
4419 | return status; | |
4420 | } | |
4421 | ||
4422 | /* | |
4423 | * Decode RENEW response | |
4424 | */ | |
8687b63a | 4425 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4426 | { |
4427 | struct xdr_stream xdr; | |
4428 | struct compound_hdr hdr; | |
4429 | int status; | |
4430 | ||
4431 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4432 | status = decode_compound_hdr(&xdr, &hdr); | |
4433 | if (!status) | |
4434 | status = decode_renew(&xdr); | |
4435 | return status; | |
4436 | } | |
4437 | ||
4438 | /* | |
4439 | * a SETCLIENTID request | |
4440 | */ | |
8687b63a | 4441 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4442 | struct nfs_client *clp) |
1da177e4 LT |
4443 | { |
4444 | struct xdr_stream xdr; | |
4445 | struct compound_hdr hdr; | |
4446 | int status; | |
4447 | ||
4448 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4449 | status = decode_compound_hdr(&xdr, &hdr); | |
4450 | if (!status) | |
4451 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
4452 | return status; |
4453 | } | |
4454 | ||
4455 | /* | |
4456 | * a SETCLIENTID_CONFIRM request | |
4457 | */ | |
8687b63a | 4458 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4459 | { |
4460 | struct xdr_stream xdr; | |
4461 | struct compound_hdr hdr; | |
4462 | int status; | |
4463 | ||
4464 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4465 | status = decode_compound_hdr(&xdr, &hdr); | |
4466 | if (!status) | |
4467 | status = decode_setclientid_confirm(&xdr); | |
4468 | if (!status) | |
4469 | status = decode_putrootfh(&xdr); | |
4470 | if (!status) | |
4471 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4472 | return status; |
4473 | } | |
4474 | ||
4475 | /* | |
4476 | * DELEGRETURN request | |
4477 | */ | |
8687b63a | 4478 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4479 | { |
4480 | struct xdr_stream xdr; | |
4481 | struct compound_hdr hdr; | |
4482 | int status; | |
4483 | ||
4484 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4485 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4486 | if (status != 0) |
4487 | goto out; | |
4488 | status = decode_putfh(&xdr); | |
4489 | if (status != 0) | |
4490 | goto out; | |
4491 | status = decode_delegreturn(&xdr); | |
4492 | decode_getfattr(&xdr, res->fattr, res->server); | |
4493 | out: | |
1da177e4 LT |
4494 | return status; |
4495 | } | |
4496 | ||
683b57b4 TM |
4497 | /* |
4498 | * FS_LOCATIONS request | |
4499 | */ | |
8687b63a | 4500 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) |
683b57b4 TM |
4501 | { |
4502 | struct xdr_stream xdr; | |
4503 | struct compound_hdr hdr; | |
4504 | int status; | |
4505 | ||
4506 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4507 | status = decode_compound_hdr(&xdr, &hdr); | |
4508 | if (status != 0) | |
4509 | goto out; | |
4510 | if ((status = decode_putfh(&xdr)) != 0) | |
4511 | goto out; | |
4512 | if ((status = decode_lookup(&xdr)) != 0) | |
4513 | goto out; | |
4514 | xdr_enter_page(&xdr, PAGE_SIZE); | |
4515 | status = decode_getfattr(&xdr, &res->fattr, res->server); | |
4516 | out: | |
4517 | return status; | |
4518 | } | |
4519 | ||
0dbb4c67 | 4520 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4521 | { |
4522 | uint32_t bitmap[2] = {0}; | |
4523 | uint32_t len; | |
4524 | ||
4525 | if (!*p++) { | |
4526 | if (!*p) | |
4527 | return ERR_PTR(-EAGAIN); | |
4528 | entry->eof = 1; | |
4529 | return ERR_PTR(-EBADCOOKIE); | |
4530 | } | |
4531 | ||
4532 | entry->prev_cookie = entry->cookie; | |
4533 | p = xdr_decode_hyper(p, &entry->cookie); | |
4534 | entry->len = ntohl(*p++); | |
4535 | entry->name = (const char *) p; | |
4536 | p += XDR_QUADLEN(entry->len); | |
4537 | ||
4538 | /* | |
4539 | * In case the server doesn't return an inode number, | |
4540 | * we fake one here. (We don't use inode number 0, | |
4541 | * since glibc seems to choke on it...) | |
4542 | */ | |
4543 | entry->ino = 1; | |
4544 | ||
4545 | len = ntohl(*p++); /* bitmap length */ | |
4546 | if (len-- > 0) { | |
4547 | bitmap[0] = ntohl(*p++); | |
4548 | if (len-- > 0) { | |
4549 | bitmap[1] = ntohl(*p++); | |
4550 | p += len; | |
4551 | } | |
4552 | } | |
4553 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4554 | if (len > 0) { | |
97d312d0 MN |
4555 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4556 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4557 | /* Ignore the return value of rdattr_error for now */ | |
4558 | p++; | |
4559 | len--; | |
4560 | } | |
1da177e4 LT |
4561 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4562 | xdr_decode_hyper(p, &entry->ino); | |
4563 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4564 | xdr_decode_hyper(p, &entry->ino); | |
4565 | p += len; | |
4566 | } | |
4567 | ||
4568 | entry->eof = !p[0] && p[1]; | |
4569 | return p; | |
4570 | } | |
4571 | ||
4572 | /* | |
4573 | * We need to translate between nfs status return values and | |
4574 | * the local errno values which may not be the same. | |
4575 | */ | |
4576 | static struct { | |
4577 | int stat; | |
4578 | int errno; | |
4579 | } nfs_errtbl[] = { | |
4580 | { NFS4_OK, 0 }, | |
856dff3d BH |
4581 | { NFS4ERR_PERM, -EPERM }, |
4582 | { NFS4ERR_NOENT, -ENOENT }, | |
4583 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
4584 | { NFS4ERR_NXIO, -ENXIO }, | |
4585 | { NFS4ERR_ACCESS, -EACCES }, | |
4586 | { NFS4ERR_EXIST, -EEXIST }, | |
4587 | { NFS4ERR_XDEV, -EXDEV }, | |
4588 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
4589 | { NFS4ERR_ISDIR, -EISDIR }, | |
4590 | { NFS4ERR_INVAL, -EINVAL }, | |
4591 | { NFS4ERR_FBIG, -EFBIG }, | |
4592 | { NFS4ERR_NOSPC, -ENOSPC }, | |
4593 | { NFS4ERR_ROFS, -EROFS }, | |
4594 | { NFS4ERR_MLINK, -EMLINK }, | |
4595 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
4596 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
4597 | { NFS4ERR_DQUOT, -EDQUOT }, | |
4598 | { NFS4ERR_STALE, -ESTALE }, | |
4599 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
4600 | { NFS4ERR_BADOWNER, -EINVAL }, | |
4601 | { NFS4ERR_BADNAME, -EINVAL }, | |
4602 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
4603 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
4604 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
4605 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
4606 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
4607 | { NFS4ERR_LOCKED, -EAGAIN }, | |
4608 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
4609 | { NFS4ERR_SYMLINK, -ELOOP }, | |
4610 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
4611 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
4612 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
4613 | * to be handled by a |
4614 | * middle-layer. | |
4615 | */ | |
856dff3d | 4616 | { -1, -EIO } |
1da177e4 LT |
4617 | }; |
4618 | ||
4619 | /* | |
4620 | * Convert an NFS error code to a local one. | |
4621 | * This one is used jointly by NFSv2 and NFSv3. | |
4622 | */ | |
4623 | static int | |
0a8ea437 | 4624 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4625 | { |
4626 | int i; | |
4627 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4628 | if (nfs_errtbl[i].stat == stat) | |
4629 | return nfs_errtbl[i].errno; | |
4630 | } | |
4631 | if (stat <= 10000 || stat > 10100) { | |
4632 | /* The server is looney tunes. */ | |
856dff3d | 4633 | return -ESERVERFAULT; |
1da177e4 LT |
4634 | } |
4635 | /* If we cannot translate the error, the recovery routines should | |
4636 | * handle it. | |
4637 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4638 | * not conflict with native Linux error codes. | |
4639 | */ | |
856dff3d | 4640 | return -stat; |
1da177e4 LT |
4641 | } |
4642 | ||
1da177e4 LT |
4643 | #define PROC(proc, argtype, restype) \ |
4644 | [NFSPROC4_CLNT_##proc] = { \ | |
4645 | .p_proc = NFSPROC4_COMPOUND, \ | |
4646 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4647 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4648 | .p_arglen = NFS4_##argtype##_sz, \ |
4649 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4650 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4651 | .p_name = #proc, \ | |
05d564fe | 4652 | } |
1da177e4 LT |
4653 | |
4654 | struct rpc_procinfo nfs4_procedures[] = { | |
4655 | PROC(READ, enc_read, dec_read), | |
4656 | PROC(WRITE, enc_write, dec_write), | |
4657 | PROC(COMMIT, enc_commit, dec_commit), | |
4658 | PROC(OPEN, enc_open, dec_open), | |
4659 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4660 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4661 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4662 | PROC(CLOSE, enc_close, dec_close), | |
4663 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4664 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4665 | PROC(RENEW, enc_renew, dec_renew), | |
4666 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4667 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4668 | PROC(LOCK, enc_lock, dec_lock), | |
4669 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4670 | PROC(LOCKU, enc_locku, dec_locku), | |
4671 | PROC(ACCESS, enc_access, dec_access), | |
4672 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4673 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4674 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4675 | PROC(REMOVE, enc_remove, dec_remove), | |
4676 | PROC(RENAME, enc_rename, dec_rename), | |
4677 | PROC(LINK, enc_link, dec_link), | |
4678 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4679 | PROC(CREATE, enc_create, dec_create), | |
4680 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4681 | PROC(STATFS, enc_statfs, dec_statfs), | |
4682 | PROC(READLINK, enc_readlink, dec_readlink), | |
4683 | PROC(READDIR, enc_readdir, dec_readdir), | |
4684 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4685 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4686 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4687 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4688 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4689 | }; |
4690 | ||
4691 | struct rpc_version nfs_version4 = { | |
4692 | .number = 4, | |
e8c96f8c | 4693 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4694 | .procs = nfs4_procedures |
4695 | }; | |
4696 | ||
4697 | /* | |
4698 | * Local variables: | |
4699 | * c-basic-offset: 8 | |
4700 | * End: | |
4701 | */ |