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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 LT |
524 | |
525 | static struct { | |
526 | unsigned int mode; | |
527 | unsigned int nfs2type; | |
528 | } nfs_type2fmt[] = { | |
529 | { 0, NFNON }, | |
530 | { S_IFREG, NFREG }, | |
531 | { S_IFDIR, NFDIR }, | |
532 | { S_IFBLK, NFBLK }, | |
533 | { S_IFCHR, NFCHR }, | |
534 | { S_IFLNK, NFLNK }, | |
535 | { S_IFSOCK, NFSOCK }, | |
536 | { S_IFIFO, NFFIFO }, | |
537 | { 0, NFNON }, | |
538 | { 0, NFNON }, | |
539 | }; | |
540 | ||
541 | struct compound_hdr { | |
542 | int32_t status; | |
543 | uint32_t nops; | |
d017931c | 544 | __be32 * nops_p; |
1da177e4 LT |
545 | uint32_t taglen; |
546 | char * tag; | |
547 | }; | |
548 | ||
549 | /* | |
550 | * START OF "GENERIC" ENCODE ROUTINES. | |
551 | * These may look a little ugly since they are imported from a "generic" | |
552 | * set of XDR encode/decode routines which are intended to be shared by | |
553 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
554 | * | |
555 | * If the pain of reading these is too great, it should be a straightforward | |
556 | * task to translate them into Linux-specific versions which are more | |
557 | * consistent with the style used in NFSv2/v3... | |
558 | */ | |
559 | #define WRITE32(n) *p++ = htonl(n) | |
560 | #define WRITE64(n) do { \ | |
561 | *p++ = htonl((uint32_t)((n) >> 32)); \ | |
562 | *p++ = htonl((uint32_t)(n)); \ | |
563 | } while (0) | |
564 | #define WRITEMEM(ptr,nbytes) do { \ | |
565 | p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ | |
566 | } while (0) | |
567 | ||
568 | #define RESERVE_SPACE(nbytes) do { \ | |
569 | p = xdr_reserve_space(xdr, nbytes); \ | |
1da177e4 LT |
570 | BUG_ON(!p); \ |
571 | } while (0) | |
572 | ||
573 | static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) | |
574 | { | |
8687b63a | 575 | __be32 *p; |
1da177e4 LT |
576 | |
577 | p = xdr_reserve_space(xdr, 4 + len); | |
578 | BUG_ON(p == NULL); | |
579 | xdr_encode_opaque(p, str, len); | |
580 | } | |
581 | ||
d017931c | 582 | static void encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 583 | { |
8687b63a | 584 | __be32 *p; |
1da177e4 LT |
585 | |
586 | dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); | |
587 | BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); | |
588 | RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); | |
589 | WRITE32(hdr->taglen); | |
590 | WRITEMEM(hdr->tag, hdr->taglen); | |
591 | WRITE32(NFS4_MINOR_VERSION); | |
d017931c | 592 | hdr->nops_p = p; |
1da177e4 | 593 | WRITE32(hdr->nops); |
d017931c AA |
594 | } |
595 | ||
596 | static void encode_nops(struct compound_hdr *hdr) | |
597 | { | |
598 | *hdr->nops_p = htonl(hdr->nops); | |
1da177e4 LT |
599 | } |
600 | ||
601 | static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) | |
602 | { | |
8687b63a | 603 | __be32 *p; |
1da177e4 LT |
604 | |
605 | p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); | |
606 | BUG_ON(p == NULL); | |
607 | xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); | |
608 | } | |
609 | ||
610 | static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) | |
611 | { | |
612 | char owner_name[IDMAP_NAMESZ]; | |
613 | char owner_group[IDMAP_NAMESZ]; | |
614 | int owner_namelen = 0; | |
615 | int owner_grouplen = 0; | |
8687b63a AV |
616 | __be32 *p; |
617 | __be32 *q; | |
1da177e4 LT |
618 | int len; |
619 | uint32_t bmval0 = 0; | |
620 | uint32_t bmval1 = 0; | |
621 | int status; | |
622 | ||
623 | /* | |
624 | * We reserve enough space to write the entire attribute buffer at once. | |
625 | * In the worst-case, this would be | |
626 | * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) | |
627 | * = 36 bytes, plus any contribution from variable-length fields | |
23ec6965 | 628 | * such as owner/group. |
1da177e4 LT |
629 | */ |
630 | len = 16; | |
631 | ||
632 | /* Sigh */ | |
633 | if (iap->ia_valid & ATTR_SIZE) | |
634 | len += 8; | |
635 | if (iap->ia_valid & ATTR_MODE) | |
636 | len += 4; | |
637 | if (iap->ia_valid & ATTR_UID) { | |
7539bbab | 638 | owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); |
1da177e4 | 639 | if (owner_namelen < 0) { |
fe82a183 CL |
640 | dprintk("nfs: couldn't resolve uid %d to string\n", |
641 | iap->ia_uid); | |
1da177e4 LT |
642 | /* XXX */ |
643 | strcpy(owner_name, "nobody"); | |
644 | owner_namelen = sizeof("nobody") - 1; | |
645 | /* goto out; */ | |
646 | } | |
647 | len += 4 + (XDR_QUADLEN(owner_namelen) << 2); | |
648 | } | |
649 | if (iap->ia_valid & ATTR_GID) { | |
7539bbab | 650 | owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); |
1da177e4 | 651 | if (owner_grouplen < 0) { |
fe82a183 CL |
652 | dprintk("nfs: couldn't resolve gid %d to string\n", |
653 | iap->ia_gid); | |
1da177e4 LT |
654 | strcpy(owner_group, "nobody"); |
655 | owner_grouplen = sizeof("nobody") - 1; | |
656 | /* goto out; */ | |
657 | } | |
658 | len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); | |
659 | } | |
660 | if (iap->ia_valid & ATTR_ATIME_SET) | |
661 | len += 16; | |
662 | else if (iap->ia_valid & ATTR_ATIME) | |
663 | len += 4; | |
664 | if (iap->ia_valid & ATTR_MTIME_SET) | |
665 | len += 16; | |
666 | else if (iap->ia_valid & ATTR_MTIME) | |
667 | len += 4; | |
668 | RESERVE_SPACE(len); | |
669 | ||
670 | /* | |
671 | * We write the bitmap length now, but leave the bitmap and the attribute | |
672 | * buffer length to be backfilled at the end of this routine. | |
673 | */ | |
674 | WRITE32(2); | |
675 | q = p; | |
676 | p += 3; | |
677 | ||
678 | if (iap->ia_valid & ATTR_SIZE) { | |
679 | bmval0 |= FATTR4_WORD0_SIZE; | |
680 | WRITE64(iap->ia_size); | |
681 | } | |
682 | if (iap->ia_valid & ATTR_MODE) { | |
683 | bmval1 |= FATTR4_WORD1_MODE; | |
cf3fff54 | 684 | WRITE32(iap->ia_mode & S_IALLUGO); |
1da177e4 LT |
685 | } |
686 | if (iap->ia_valid & ATTR_UID) { | |
687 | bmval1 |= FATTR4_WORD1_OWNER; | |
688 | WRITE32(owner_namelen); | |
689 | WRITEMEM(owner_name, owner_namelen); | |
690 | } | |
691 | if (iap->ia_valid & ATTR_GID) { | |
692 | bmval1 |= FATTR4_WORD1_OWNER_GROUP; | |
693 | WRITE32(owner_grouplen); | |
694 | WRITEMEM(owner_group, owner_grouplen); | |
695 | } | |
696 | if (iap->ia_valid & ATTR_ATIME_SET) { | |
697 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
698 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
699 | WRITE32(0); | |
700 | WRITE32(iap->ia_mtime.tv_sec); | |
701 | WRITE32(iap->ia_mtime.tv_nsec); | |
702 | } | |
703 | else if (iap->ia_valid & ATTR_ATIME) { | |
704 | bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; | |
705 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
706 | } | |
707 | if (iap->ia_valid & ATTR_MTIME_SET) { | |
708 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
709 | WRITE32(NFS4_SET_TO_CLIENT_TIME); | |
710 | WRITE32(0); | |
711 | WRITE32(iap->ia_mtime.tv_sec); | |
712 | WRITE32(iap->ia_mtime.tv_nsec); | |
713 | } | |
714 | else if (iap->ia_valid & ATTR_MTIME) { | |
715 | bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; | |
716 | WRITE32(NFS4_SET_TO_SERVER_TIME); | |
717 | } | |
6c0195a4 | 718 | |
1da177e4 LT |
719 | /* |
720 | * Now we backfill the bitmap and the attribute buffer length. | |
721 | */ | |
722 | if (len != ((char *)p - (char *)q) + 4) { | |
fe82a183 | 723 | printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", |
1da177e4 LT |
724 | len, ((char *)p - (char *)q) + 4); |
725 | BUG(); | |
726 | } | |
727 | len = (char *)p - (char *)q - 12; | |
728 | *q++ = htonl(bmval0); | |
729 | *q++ = htonl(bmval1); | |
730 | *q++ = htonl(len); | |
731 | ||
732 | status = 0; | |
733 | /* out: */ | |
734 | return status; | |
735 | } | |
736 | ||
d017931c | 737 | static int encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) |
1da177e4 | 738 | { |
8687b63a | 739 | __be32 *p; |
1da177e4 LT |
740 | |
741 | RESERVE_SPACE(8); | |
742 | WRITE32(OP_ACCESS); | |
743 | WRITE32(access); | |
d017931c | 744 | hdr->nops++; |
6c0195a4 | 745 | |
1da177e4 LT |
746 | return 0; |
747 | } | |
748 | ||
d017931c | 749 | static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 750 | { |
8687b63a | 751 | __be32 *p; |
1da177e4 | 752 | |
8ae20abd | 753 | RESERVE_SPACE(8+NFS4_STATEID_SIZE); |
1da177e4 | 754 | WRITE32(OP_CLOSE); |
cee54fc9 | 755 | WRITE32(arg->seqid->sequence->counter); |
8ae20abd | 756 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
d017931c | 757 | hdr->nops++; |
6c0195a4 | 758 | |
1da177e4 LT |
759 | return 0; |
760 | } | |
761 | ||
d017931c | 762 | static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 763 | { |
8687b63a | 764 | __be32 *p; |
6c0195a4 | 765 | |
05d564fe AA |
766 | RESERVE_SPACE(16); |
767 | WRITE32(OP_COMMIT); | |
768 | WRITE64(args->offset); | |
769 | WRITE32(args->count); | |
d017931c | 770 | hdr->nops++; |
1da177e4 | 771 | |
05d564fe | 772 | return 0; |
1da177e4 LT |
773 | } |
774 | ||
d017931c | 775 | static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) |
1da177e4 | 776 | { |
8687b63a | 777 | __be32 *p; |
6c0195a4 | 778 | |
1da177e4 LT |
779 | RESERVE_SPACE(8); |
780 | WRITE32(OP_CREATE); | |
781 | WRITE32(create->ftype); | |
782 | ||
783 | switch (create->ftype) { | |
784 | case NF4LNK: | |
94a6d753 CL |
785 | RESERVE_SPACE(4); |
786 | WRITE32(create->u.symlink.len); | |
787 | xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); | |
1da177e4 LT |
788 | break; |
789 | ||
790 | case NF4BLK: case NF4CHR: | |
791 | RESERVE_SPACE(8); | |
792 | WRITE32(create->u.device.specdata1); | |
793 | WRITE32(create->u.device.specdata2); | |
794 | break; | |
795 | ||
796 | default: | |
797 | break; | |
798 | } | |
799 | ||
800 | RESERVE_SPACE(4 + create->name->len); | |
801 | WRITE32(create->name->len); | |
802 | WRITEMEM(create->name->name, create->name->len); | |
d017931c | 803 | hdr->nops++; |
1da177e4 LT |
804 | |
805 | return encode_attrs(xdr, create->attrs, create->server); | |
806 | } | |
807 | ||
d017931c | 808 | static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) |
1da177e4 | 809 | { |
05d564fe | 810 | __be32 *p; |
1da177e4 | 811 | |
05d564fe AA |
812 | RESERVE_SPACE(12); |
813 | WRITE32(OP_GETATTR); | |
814 | WRITE32(1); | |
815 | WRITE32(bitmap); | |
d017931c | 816 | hdr->nops++; |
05d564fe | 817 | return 0; |
1da177e4 LT |
818 | } |
819 | ||
d017931c | 820 | static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) |
1da177e4 | 821 | { |
05d564fe | 822 | __be32 *p; |
1da177e4 | 823 | |
05d564fe AA |
824 | RESERVE_SPACE(16); |
825 | WRITE32(OP_GETATTR); | |
826 | WRITE32(2); | |
827 | WRITE32(bm0); | |
828 | WRITE32(bm1); | |
d017931c | 829 | hdr->nops++; |
05d564fe | 830 | return 0; |
1da177e4 LT |
831 | } |
832 | ||
d017931c | 833 | static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 834 | { |
1da177e4 LT |
835 | return encode_getattr_two(xdr, |
836 | bitmask[0] & nfs4_fattr_bitmap[0], | |
d017931c | 837 | bitmask[1] & nfs4_fattr_bitmap[1], hdr); |
1da177e4 LT |
838 | } |
839 | ||
d017931c | 840 | static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
1da177e4 | 841 | { |
1da177e4 | 842 | return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], |
d017931c | 843 | bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); |
1da177e4 LT |
844 | } |
845 | ||
d017931c | 846 | static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) |
830b8e33 MN |
847 | { |
848 | return encode_getattr_two(xdr, | |
849 | bitmask[0] & nfs4_fs_locations_bitmap[0], | |
d017931c AA |
850 | bitmask[1] & nfs4_fs_locations_bitmap[1], |
851 | hdr); | |
830b8e33 MN |
852 | } |
853 | ||
d017931c | 854 | static int encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 855 | { |
8687b63a | 856 | __be32 *p; |
1da177e4 LT |
857 | |
858 | RESERVE_SPACE(4); | |
859 | WRITE32(OP_GETFH); | |
d017931c | 860 | hdr->nops++; |
1da177e4 LT |
861 | |
862 | return 0; | |
863 | } | |
864 | ||
d017931c | 865 | static int encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 866 | { |
8687b63a | 867 | __be32 *p; |
1da177e4 LT |
868 | |
869 | RESERVE_SPACE(8 + name->len); | |
870 | WRITE32(OP_LINK); | |
871 | WRITE32(name->len); | |
872 | WRITEMEM(name->name, name->len); | |
d017931c | 873 | hdr->nops++; |
6c0195a4 | 874 | |
1da177e4 LT |
875 | return 0; |
876 | } | |
877 | ||
911d1aaf TM |
878 | static inline int nfs4_lock_type(struct file_lock *fl, int block) |
879 | { | |
880 | if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) | |
881 | return block ? NFS4_READW_LT : NFS4_READ_LT; | |
882 | return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; | |
883 | } | |
884 | ||
885 | static inline uint64_t nfs4_lock_length(struct file_lock *fl) | |
886 | { | |
887 | if (fl->fl_end == OFFSET_MAX) | |
888 | return ~(uint64_t)0; | |
889 | return fl->fl_end - fl->fl_start + 1; | |
890 | } | |
891 | ||
1da177e4 LT |
892 | /* |
893 | * opcode,type,reclaim,offset,length,new_lock_owner = 32 | |
894 | * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 | |
895 | */ | |
d017931c | 896 | static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) |
1da177e4 | 897 | { |
8687b63a | 898 | __be32 *p; |
1da177e4 LT |
899 | |
900 | RESERVE_SPACE(32); | |
901 | WRITE32(OP_LOCK); | |
911d1aaf TM |
902 | WRITE32(nfs4_lock_type(args->fl, args->block)); |
903 | WRITE32(args->reclaim); | |
904 | WRITE64(args->fl->fl_start); | |
905 | WRITE64(nfs4_lock_length(args->fl)); | |
906 | WRITE32(args->new_lock_owner); | |
907 | if (args->new_lock_owner){ | |
9f958ab8 | 908 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); |
911d1aaf | 909 | WRITE32(args->open_seqid->sequence->counter); |
8ae20abd | 910 | WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
911 | WRITE32(args->lock_seqid->sequence->counter); |
912 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
913 | WRITE32(16); |
914 | WRITEMEM("lock id:", 8); | |
915 | WRITE64(args->lock_owner.id); | |
1da177e4 LT |
916 | } |
917 | else { | |
8ae20abd TM |
918 | RESERVE_SPACE(NFS4_STATEID_SIZE+4); |
919 | WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); | |
911d1aaf | 920 | WRITE32(args->lock_seqid->sequence->counter); |
1da177e4 | 921 | } |
d017931c | 922 | hdr->nops++; |
1da177e4 LT |
923 | |
924 | return 0; | |
925 | } | |
926 | ||
d017931c | 927 | static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) |
1da177e4 | 928 | { |
8687b63a | 929 | __be32 *p; |
1da177e4 | 930 | |
9f958ab8 | 931 | RESERVE_SPACE(52); |
1da177e4 | 932 | WRITE32(OP_LOCKT); |
911d1aaf TM |
933 | WRITE32(nfs4_lock_type(args->fl, 0)); |
934 | WRITE64(args->fl->fl_start); | |
935 | WRITE64(nfs4_lock_length(args->fl)); | |
936 | WRITE64(args->lock_owner.clientid); | |
9f958ab8 TM |
937 | WRITE32(16); |
938 | WRITEMEM("lock id:", 8); | |
939 | WRITE64(args->lock_owner.id); | |
d017931c | 940 | hdr->nops++; |
1da177e4 LT |
941 | |
942 | return 0; | |
943 | } | |
944 | ||
d017931c | 945 | static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) |
1da177e4 | 946 | { |
8687b63a | 947 | __be32 *p; |
1da177e4 | 948 | |
8ae20abd | 949 | RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); |
1da177e4 | 950 | WRITE32(OP_LOCKU); |
911d1aaf TM |
951 | WRITE32(nfs4_lock_type(args->fl, 0)); |
952 | WRITE32(args->seqid->sequence->counter); | |
8ae20abd | 953 | WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); |
911d1aaf TM |
954 | WRITE64(args->fl->fl_start); |
955 | WRITE64(nfs4_lock_length(args->fl)); | |
d017931c | 956 | hdr->nops++; |
1da177e4 LT |
957 | |
958 | return 0; | |
959 | } | |
960 | ||
d017931c | 961 | static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 LT |
962 | { |
963 | int len = name->len; | |
8687b63a | 964 | __be32 *p; |
1da177e4 LT |
965 | |
966 | RESERVE_SPACE(8 + len); | |
967 | WRITE32(OP_LOOKUP); | |
968 | WRITE32(len); | |
969 | WRITEMEM(name->name, len); | |
d017931c | 970 | hdr->nops++; |
1da177e4 LT |
971 | |
972 | return 0; | |
973 | } | |
974 | ||
dc0b027d | 975 | static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) |
1da177e4 | 976 | { |
8687b63a | 977 | __be32 *p; |
1da177e4 LT |
978 | |
979 | RESERVE_SPACE(8); | |
dc0b027d | 980 | switch (fmode & (FMODE_READ|FMODE_WRITE)) { |
05d564fe AA |
981 | case FMODE_READ: |
982 | WRITE32(NFS4_SHARE_ACCESS_READ); | |
983 | break; | |
984 | case FMODE_WRITE: | |
985 | WRITE32(NFS4_SHARE_ACCESS_WRITE); | |
986 | break; | |
987 | case FMODE_READ|FMODE_WRITE: | |
988 | WRITE32(NFS4_SHARE_ACCESS_BOTH); | |
989 | break; | |
990 | default: | |
991 | WRITE32(0); | |
1da177e4 LT |
992 | } |
993 | WRITE32(0); /* for linux, share_deny = 0 always */ | |
994 | } | |
995 | ||
996 | static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
997 | { | |
8687b63a | 998 | __be32 *p; |
1da177e4 LT |
999 | /* |
1000 | * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, | |
1001 | * owner 4 = 32 | |
1002 | */ | |
1003 | RESERVE_SPACE(8); | |
1004 | WRITE32(OP_OPEN); | |
cee54fc9 | 1005 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1006 | encode_share_access(xdr, arg->fmode); |
9f958ab8 | 1007 | RESERVE_SPACE(28); |
1da177e4 | 1008 | WRITE64(arg->clientid); |
9f958ab8 TM |
1009 | WRITE32(16); |
1010 | WRITEMEM("open id:", 8); | |
1011 | WRITE64(arg->id); | |
1da177e4 LT |
1012 | } |
1013 | ||
1014 | static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1015 | { | |
8687b63a | 1016 | __be32 *p; |
1da177e4 LT |
1017 | |
1018 | RESERVE_SPACE(4); | |
1019 | switch(arg->open_flags & O_EXCL) { | |
05d564fe AA |
1020 | case 0: |
1021 | WRITE32(NFS4_CREATE_UNCHECKED); | |
1022 | encode_attrs(xdr, arg->u.attrs, arg->server); | |
1023 | break; | |
1024 | default: | |
1025 | WRITE32(NFS4_CREATE_EXCLUSIVE); | |
1026 | encode_nfs4_verifier(xdr, &arg->u.verifier); | |
1da177e4 LT |
1027 | } |
1028 | } | |
1029 | ||
1030 | static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) | |
1031 | { | |
8687b63a | 1032 | __be32 *p; |
1da177e4 LT |
1033 | |
1034 | RESERVE_SPACE(4); | |
1035 | switch (arg->open_flags & O_CREAT) { | |
05d564fe AA |
1036 | case 0: |
1037 | WRITE32(NFS4_OPEN_NOCREATE); | |
1038 | break; | |
1039 | default: | |
1040 | BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); | |
1041 | WRITE32(NFS4_OPEN_CREATE); | |
1042 | encode_createmode(xdr, arg); | |
1da177e4 LT |
1043 | } |
1044 | } | |
1045 | ||
bd7bf9d5 | 1046 | static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) |
1da177e4 | 1047 | { |
8687b63a | 1048 | __be32 *p; |
1da177e4 LT |
1049 | |
1050 | RESERVE_SPACE(4); | |
1051 | switch (delegation_type) { | |
05d564fe AA |
1052 | case 0: |
1053 | WRITE32(NFS4_OPEN_DELEGATE_NONE); | |
1054 | break; | |
1055 | case FMODE_READ: | |
1056 | WRITE32(NFS4_OPEN_DELEGATE_READ); | |
1057 | break; | |
1058 | case FMODE_WRITE|FMODE_READ: | |
1059 | WRITE32(NFS4_OPEN_DELEGATE_WRITE); | |
1060 | break; | |
1061 | default: | |
1062 | BUG(); | |
1da177e4 LT |
1063 | } |
1064 | } | |
1065 | ||
1066 | static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) | |
1067 | { | |
8687b63a | 1068 | __be32 *p; |
1da177e4 LT |
1069 | |
1070 | RESERVE_SPACE(4); | |
1071 | WRITE32(NFS4_OPEN_CLAIM_NULL); | |
1072 | encode_string(xdr, name->len, name->name); | |
1073 | } | |
1074 | ||
bd7bf9d5 | 1075 | static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) |
1da177e4 | 1076 | { |
8687b63a | 1077 | __be32 *p; |
1da177e4 LT |
1078 | |
1079 | RESERVE_SPACE(4); | |
1080 | WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); | |
1081 | encode_delegation_type(xdr, type); | |
1082 | } | |
1083 | ||
1084 | static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) | |
1085 | { | |
8687b63a | 1086 | __be32 *p; |
1da177e4 | 1087 | |
8ae20abd | 1088 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 | 1089 | WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); |
8ae20abd | 1090 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1091 | encode_string(xdr, name->len, name->name); |
1092 | } | |
1093 | ||
d017931c | 1094 | static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) |
1da177e4 LT |
1095 | { |
1096 | encode_openhdr(xdr, arg); | |
1097 | encode_opentype(xdr, arg); | |
1098 | switch (arg->claim) { | |
05d564fe AA |
1099 | case NFS4_OPEN_CLAIM_NULL: |
1100 | encode_claim_null(xdr, arg->name); | |
1101 | break; | |
1102 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
1103 | encode_claim_previous(xdr, arg->u.delegation_type); | |
1104 | break; | |
1105 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: | |
1106 | encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); | |
1107 | break; | |
1108 | default: | |
1109 | BUG(); | |
1da177e4 | 1110 | } |
d017931c | 1111 | hdr->nops++; |
1da177e4 LT |
1112 | return 0; |
1113 | } | |
1114 | ||
d017931c | 1115 | static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1116 | { |
8687b63a | 1117 | __be32 *p; |
1da177e4 | 1118 | |
8ae20abd | 1119 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1120 | WRITE32(OP_OPEN_CONFIRM); |
8ae20abd | 1121 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1122 | WRITE32(arg->seqid->sequence->counter); |
d017931c | 1123 | hdr->nops++; |
1da177e4 LT |
1124 | |
1125 | return 0; | |
1126 | } | |
1127 | ||
d017931c | 1128 | static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) |
1da177e4 | 1129 | { |
8687b63a | 1130 | __be32 *p; |
1da177e4 | 1131 | |
8ae20abd | 1132 | RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); |
1da177e4 | 1133 | WRITE32(OP_OPEN_DOWNGRADE); |
8ae20abd | 1134 | WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); |
cee54fc9 | 1135 | WRITE32(arg->seqid->sequence->counter); |
dc0b027d | 1136 | encode_share_access(xdr, arg->fmode); |
d017931c | 1137 | hdr->nops++; |
1da177e4 LT |
1138 | return 0; |
1139 | } | |
1140 | ||
1141 | static int | |
d017931c | 1142 | encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) |
1da177e4 LT |
1143 | { |
1144 | int len = fh->size; | |
8687b63a | 1145 | __be32 *p; |
1da177e4 LT |
1146 | |
1147 | RESERVE_SPACE(8 + len); | |
1148 | WRITE32(OP_PUTFH); | |
1149 | WRITE32(len); | |
1150 | WRITEMEM(fh->data, len); | |
d017931c | 1151 | hdr->nops++; |
1da177e4 LT |
1152 | |
1153 | return 0; | |
1154 | } | |
1155 | ||
d017931c | 1156 | static int encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1157 | { |
05d564fe | 1158 | __be32 *p; |
6c0195a4 | 1159 | |
05d564fe AA |
1160 | RESERVE_SPACE(4); |
1161 | WRITE32(OP_PUTROOTFH); | |
d017931c | 1162 | hdr->nops++; |
1da177e4 | 1163 | |
05d564fe | 1164 | return 0; |
1da177e4 LT |
1165 | } |
1166 | ||
1167 | static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) | |
1168 | { | |
1da177e4 | 1169 | nfs4_stateid stateid; |
8687b63a | 1170 | __be32 *p; |
1da177e4 | 1171 | |
8ae20abd | 1172 | RESERVE_SPACE(NFS4_STATEID_SIZE); |
1da177e4 LT |
1173 | if (ctx->state != NULL) { |
1174 | nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); | |
8ae20abd | 1175 | WRITEMEM(stateid.data, NFS4_STATEID_SIZE); |
1da177e4 | 1176 | } else |
8ae20abd | 1177 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
1da177e4 LT |
1178 | } |
1179 | ||
d017931c | 1180 | static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) |
1da177e4 | 1181 | { |
8687b63a | 1182 | __be32 *p; |
1da177e4 LT |
1183 | |
1184 | RESERVE_SPACE(4); | |
1185 | WRITE32(OP_READ); | |
1186 | ||
1187 | encode_stateid(xdr, args->context); | |
1188 | ||
1189 | RESERVE_SPACE(12); | |
1190 | WRITE64(args->offset); | |
1191 | WRITE32(args->count); | |
d017931c | 1192 | hdr->nops++; |
1da177e4 LT |
1193 | |
1194 | return 0; | |
1195 | } | |
1196 | ||
d017931c | 1197 | static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1198 | { |
97d312d0 MN |
1199 | uint32_t attrs[2] = { |
1200 | FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, | |
1201 | FATTR4_WORD1_MOUNTED_ON_FILEID, | |
1202 | }; | |
8687b63a | 1203 | __be32 *p; |
1da177e4 | 1204 | |
8ae20abd | 1205 | RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); |
1da177e4 LT |
1206 | WRITE32(OP_READDIR); |
1207 | WRITE64(readdir->cookie); | |
8ae20abd | 1208 | WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1209 | WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ |
1210 | WRITE32(readdir->count); | |
1211 | WRITE32(2); | |
97d312d0 MN |
1212 | /* Switch to mounted_on_fileid if the server supports it */ |
1213 | if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) | |
1214 | attrs[0] &= ~FATTR4_WORD0_FILEID; | |
1215 | else | |
1216 | attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
1217 | WRITE32(attrs[0] & readdir->bitmask[0]); | |
1218 | WRITE32(attrs[1] & readdir->bitmask[1]); | |
d017931c | 1219 | hdr->nops++; |
44109241 FI |
1220 | dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", |
1221 | __func__, | |
eadf4598 TM |
1222 | (unsigned long long)readdir->cookie, |
1223 | ((u32 *)readdir->verifier.data)[0], | |
1224 | ((u32 *)readdir->verifier.data)[1], | |
1225 | attrs[0] & readdir->bitmask[0], | |
1226 | attrs[1] & readdir->bitmask[1]); | |
1da177e4 | 1227 | |
1da177e4 LT |
1228 | return 0; |
1229 | } | |
1230 | ||
d017931c | 1231 | static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) |
1da177e4 | 1232 | { |
8687b63a | 1233 | __be32 *p; |
1da177e4 LT |
1234 | |
1235 | RESERVE_SPACE(4); | |
1236 | WRITE32(OP_READLINK); | |
d017931c | 1237 | hdr->nops++; |
1da177e4 | 1238 | |
1da177e4 LT |
1239 | return 0; |
1240 | } | |
1241 | ||
d017931c | 1242 | static int encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) |
1da177e4 | 1243 | { |
8687b63a | 1244 | __be32 *p; |
1da177e4 LT |
1245 | |
1246 | RESERVE_SPACE(8 + name->len); | |
1247 | WRITE32(OP_REMOVE); | |
1248 | WRITE32(name->len); | |
1249 | WRITEMEM(name->name, name->len); | |
d017931c | 1250 | hdr->nops++; |
1da177e4 LT |
1251 | |
1252 | return 0; | |
1253 | } | |
1254 | ||
d017931c | 1255 | static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) |
1da177e4 | 1256 | { |
8687b63a | 1257 | __be32 *p; |
1da177e4 LT |
1258 | |
1259 | RESERVE_SPACE(8 + oldname->len); | |
1260 | WRITE32(OP_RENAME); | |
1261 | WRITE32(oldname->len); | |
1262 | WRITEMEM(oldname->name, oldname->len); | |
6c0195a4 | 1263 | |
1da177e4 LT |
1264 | RESERVE_SPACE(4 + newname->len); |
1265 | WRITE32(newname->len); | |
1266 | WRITEMEM(newname->name, newname->len); | |
d017931c | 1267 | hdr->nops++; |
1da177e4 LT |
1268 | |
1269 | return 0; | |
1270 | } | |
1271 | ||
d017931c | 1272 | static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) |
1da177e4 | 1273 | { |
8687b63a | 1274 | __be32 *p; |
1da177e4 LT |
1275 | |
1276 | RESERVE_SPACE(12); | |
1277 | WRITE32(OP_RENEW); | |
1278 | WRITE64(client_stateid->cl_clientid); | |
d017931c | 1279 | hdr->nops++; |
1da177e4 LT |
1280 | |
1281 | return 0; | |
1282 | } | |
1283 | ||
56ae19f3 | 1284 | static int |
d017931c | 1285 | encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
56ae19f3 | 1286 | { |
8687b63a | 1287 | __be32 *p; |
56ae19f3 TM |
1288 | |
1289 | RESERVE_SPACE(4); | |
1290 | WRITE32(OP_RESTOREFH); | |
d017931c | 1291 | hdr->nops++; |
56ae19f3 TM |
1292 | |
1293 | return 0; | |
1294 | } | |
1295 | ||
23ec6965 | 1296 | static int |
d017931c | 1297 | encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) |
23ec6965 | 1298 | { |
8687b63a | 1299 | __be32 *p; |
23ec6965 | 1300 | |
8ae20abd | 1301 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
23ec6965 | 1302 | WRITE32(OP_SETATTR); |
8ae20abd | 1303 | WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); |
23ec6965 BF |
1304 | RESERVE_SPACE(2*4); |
1305 | WRITE32(1); | |
1306 | WRITE32(FATTR4_WORD0_ACL); | |
1307 | if (arg->acl_len % 4) | |
1308 | return -EINVAL; | |
1309 | RESERVE_SPACE(4); | |
1310 | WRITE32(arg->acl_len); | |
1311 | xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); | |
d017931c | 1312 | hdr->nops++; |
23ec6965 BF |
1313 | return 0; |
1314 | } | |
1315 | ||
1da177e4 | 1316 | static int |
d017931c | 1317 | encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) |
1da177e4 | 1318 | { |
8687b63a | 1319 | __be32 *p; |
1da177e4 LT |
1320 | |
1321 | RESERVE_SPACE(4); | |
1322 | WRITE32(OP_SAVEFH); | |
d017931c | 1323 | hdr->nops++; |
1da177e4 LT |
1324 | |
1325 | return 0; | |
1326 | } | |
1327 | ||
d017931c | 1328 | static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) |
1da177e4 LT |
1329 | { |
1330 | int status; | |
8687b63a | 1331 | __be32 *p; |
6c0195a4 | 1332 | |
05d564fe AA |
1333 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1334 | WRITE32(OP_SETATTR); | |
8ae20abd | 1335 | WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); |
d017931c | 1336 | hdr->nops++; |
1da177e4 | 1337 | |
05d564fe | 1338 | if ((status = encode_attrs(xdr, arg->iap, server))) |
1da177e4 LT |
1339 | return status; |
1340 | ||
05d564fe | 1341 | return 0; |
1da177e4 LT |
1342 | } |
1343 | ||
d017931c | 1344 | static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) |
1da177e4 | 1345 | { |
8687b63a | 1346 | __be32 *p; |
1da177e4 | 1347 | |
8ae20abd | 1348 | RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); |
1da177e4 | 1349 | WRITE32(OP_SETCLIENTID); |
8ae20abd | 1350 | WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
1351 | |
1352 | encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); | |
1353 | RESERVE_SPACE(4); | |
1354 | WRITE32(setclientid->sc_prog); | |
1355 | encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); | |
1356 | encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); | |
1357 | RESERVE_SPACE(4); | |
1358 | WRITE32(setclientid->sc_cb_ident); | |
d017931c | 1359 | hdr->nops++; |
1da177e4 LT |
1360 | |
1361 | return 0; | |
1362 | } | |
1363 | ||
d017931c | 1364 | static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) |
1da177e4 | 1365 | { |
05d564fe | 1366 | __be32 *p; |
1da177e4 | 1367 | |
05d564fe AA |
1368 | RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); |
1369 | WRITE32(OP_SETCLIENTID_CONFIRM); | |
1370 | WRITE64(client_state->cl_clientid); | |
1371 | WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); | |
d017931c | 1372 | hdr->nops++; |
1da177e4 | 1373 | |
05d564fe | 1374 | return 0; |
1da177e4 LT |
1375 | } |
1376 | ||
d017931c | 1377 | static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) |
1da177e4 | 1378 | { |
8687b63a | 1379 | __be32 *p; |
1da177e4 LT |
1380 | |
1381 | RESERVE_SPACE(4); | |
1382 | WRITE32(OP_WRITE); | |
1383 | ||
1384 | encode_stateid(xdr, args->context); | |
1385 | ||
1386 | RESERVE_SPACE(16); | |
1387 | WRITE64(args->offset); | |
1388 | WRITE32(args->stable); | |
1389 | WRITE32(args->count); | |
1390 | ||
1391 | xdr_write_pages(xdr, args->pages, args->pgbase, args->count); | |
d017931c | 1392 | hdr->nops++; |
1da177e4 LT |
1393 | |
1394 | return 0; | |
1395 | } | |
1396 | ||
d017931c | 1397 | static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) |
1da177e4 | 1398 | { |
8687b63a | 1399 | __be32 *p; |
1da177e4 | 1400 | |
8ae20abd | 1401 | RESERVE_SPACE(4+NFS4_STATEID_SIZE); |
1da177e4 LT |
1402 | |
1403 | WRITE32(OP_DELEGRETURN); | |
8ae20abd | 1404 | WRITEMEM(stateid->data, NFS4_STATEID_SIZE); |
d017931c | 1405 | hdr->nops++; |
1da177e4 LT |
1406 | return 0; |
1407 | ||
1408 | } | |
1409 | /* | |
1410 | * END OF "GENERIC" ENCODE ROUTINES. | |
1411 | */ | |
1412 | ||
1413 | /* | |
1414 | * Encode an ACCESS request | |
1415 | */ | |
8687b63a | 1416 | static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) |
1da177e4 LT |
1417 | { |
1418 | struct xdr_stream xdr; | |
1419 | struct compound_hdr hdr = { | |
d017931c | 1420 | .nops = 0, |
1da177e4 LT |
1421 | }; |
1422 | int status; | |
1423 | ||
1424 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1425 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1426 | status = encode_putfh(&xdr, args->fh, &hdr); |
76b32999 TM |
1427 | if (status != 0) |
1428 | goto out; | |
d017931c | 1429 | status = encode_access(&xdr, args->access, &hdr); |
76b32999 TM |
1430 | if (status != 0) |
1431 | goto out; | |
d017931c | 1432 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
76b32999 | 1433 | out: |
d017931c | 1434 | encode_nops(&hdr); |
1da177e4 LT |
1435 | return status; |
1436 | } | |
1437 | ||
1438 | /* | |
1439 | * Encode LOOKUP request | |
1440 | */ | |
8687b63a | 1441 | static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) |
1da177e4 LT |
1442 | { |
1443 | struct xdr_stream xdr; | |
1444 | struct compound_hdr hdr = { | |
d017931c | 1445 | .nops = 0, |
1da177e4 LT |
1446 | }; |
1447 | int status; | |
1448 | ||
1449 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1450 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1451 | if ((status = encode_putfh(&xdr, args->dir_fh, &hdr)) != 0) |
1da177e4 | 1452 | goto out; |
d017931c | 1453 | if ((status = encode_lookup(&xdr, args->name, &hdr)) != 0) |
1da177e4 | 1454 | goto out; |
d017931c | 1455 | if ((status = encode_getfh(&xdr, &hdr)) != 0) |
1da177e4 | 1456 | goto out; |
d017931c | 1457 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1458 | out: |
d017931c | 1459 | encode_nops(&hdr); |
1da177e4 LT |
1460 | return status; |
1461 | } | |
1462 | ||
1463 | /* | |
1464 | * Encode LOOKUP_ROOT request | |
1465 | */ | |
8687b63a | 1466 | static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) |
1da177e4 LT |
1467 | { |
1468 | struct xdr_stream xdr; | |
1469 | struct compound_hdr hdr = { | |
d017931c | 1470 | .nops = 0, |
1da177e4 LT |
1471 | }; |
1472 | int status; | |
1473 | ||
1474 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1475 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1476 | if ((status = encode_putrootfh(&xdr, &hdr)) != 0) |
1da177e4 | 1477 | goto out; |
d017931c AA |
1478 | if ((status = encode_getfh(&xdr, &hdr)) == 0) |
1479 | status = encode_getfattr(&xdr, args->bitmask, &hdr); | |
1da177e4 | 1480 | out: |
d017931c | 1481 | encode_nops(&hdr); |
1da177e4 LT |
1482 | return status; |
1483 | } | |
1484 | ||
1485 | /* | |
1486 | * Encode REMOVE request | |
1487 | */ | |
4fdc17b2 | 1488 | static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) |
1da177e4 LT |
1489 | { |
1490 | struct xdr_stream xdr; | |
1491 | struct compound_hdr hdr = { | |
d017931c | 1492 | .nops = 0, |
1da177e4 LT |
1493 | }; |
1494 | int status; | |
1495 | ||
1496 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1497 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1498 | if ((status = encode_putfh(&xdr, args->fh, &hdr)) != 0) |
16e42959 | 1499 | goto out; |
d017931c | 1500 | if ((status = encode_remove(&xdr, &args->name, &hdr)) != 0) |
16e42959 | 1501 | goto out; |
d017931c | 1502 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
16e42959 | 1503 | out: |
d017931c | 1504 | encode_nops(&hdr); |
1da177e4 LT |
1505 | return status; |
1506 | } | |
1507 | ||
1508 | /* | |
1509 | * Encode RENAME request | |
1510 | */ | |
8687b63a | 1511 | static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) |
1da177e4 LT |
1512 | { |
1513 | struct xdr_stream xdr; | |
1514 | struct compound_hdr hdr = { | |
d017931c | 1515 | .nops = 0, |
1da177e4 LT |
1516 | }; |
1517 | int status; | |
1518 | ||
1519 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1520 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1521 | if ((status = encode_putfh(&xdr, args->old_dir, &hdr)) != 0) |
1da177e4 | 1522 | goto out; |
d017931c | 1523 | if ((status = encode_savefh(&xdr, &hdr)) != 0) |
1da177e4 | 1524 | goto out; |
d017931c | 1525 | if ((status = encode_putfh(&xdr, args->new_dir, &hdr)) != 0) |
1da177e4 | 1526 | goto out; |
d017931c AA |
1527 | if ((status = encode_rename(&xdr, args->old_name, args->new_name, |
1528 | &hdr)) != 0) | |
6caf2c82 | 1529 | goto out; |
d017931c | 1530 | if ((status = encode_getfattr(&xdr, args->bitmask, &hdr)) != 0) |
6caf2c82 | 1531 | goto out; |
d017931c | 1532 | if ((status = encode_restorefh(&xdr, &hdr)) != 0) |
6caf2c82 | 1533 | goto out; |
d017931c | 1534 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1535 | out: |
d017931c | 1536 | encode_nops(&hdr); |
1da177e4 LT |
1537 | return status; |
1538 | } | |
1539 | ||
1540 | /* | |
1541 | * Encode LINK request | |
1542 | */ | |
8687b63a | 1543 | static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) |
1da177e4 LT |
1544 | { |
1545 | struct xdr_stream xdr; | |
1546 | struct compound_hdr hdr = { | |
d017931c | 1547 | .nops = 0, |
1da177e4 LT |
1548 | }; |
1549 | int status; | |
1550 | ||
1551 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1552 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1553 | if ((status = encode_putfh(&xdr, args->fh, &hdr)) != 0) |
1da177e4 | 1554 | goto out; |
d017931c | 1555 | if ((status = encode_savefh(&xdr, &hdr)) != 0) |
1da177e4 | 1556 | goto out; |
d017931c | 1557 | if ((status = encode_putfh(&xdr, args->dir_fh, &hdr)) != 0) |
1da177e4 | 1558 | goto out; |
d017931c | 1559 | if ((status = encode_link(&xdr, args->name, &hdr)) != 0) |
91ba2eee | 1560 | goto out; |
d017931c | 1561 | if ((status = encode_getfattr(&xdr, args->bitmask, &hdr)) != 0) |
91ba2eee | 1562 | goto out; |
d017931c | 1563 | if ((status = encode_restorefh(&xdr, &hdr)) != 0) |
91ba2eee | 1564 | goto out; |
d017931c | 1565 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1566 | out: |
d017931c | 1567 | encode_nops(&hdr); |
1da177e4 LT |
1568 | return status; |
1569 | } | |
1570 | ||
1571 | /* | |
1572 | * Encode CREATE request | |
1573 | */ | |
8687b63a | 1574 | static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1575 | { |
1576 | struct xdr_stream xdr; | |
1577 | struct compound_hdr hdr = { | |
d017931c | 1578 | .nops = 0, |
1da177e4 LT |
1579 | }; |
1580 | int status; | |
1581 | ||
1582 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1583 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1584 | if ((status = encode_putfh(&xdr, args->dir_fh, &hdr)) != 0) |
1da177e4 | 1585 | goto out; |
d017931c | 1586 | if ((status = encode_savefh(&xdr, &hdr)) != 0) |
56ae19f3 | 1587 | goto out; |
d017931c | 1588 | if ((status = encode_create(&xdr, args, &hdr)) != 0) |
1da177e4 | 1589 | goto out; |
d017931c | 1590 | if ((status = encode_getfh(&xdr, &hdr)) != 0) |
1da177e4 | 1591 | goto out; |
d017931c | 1592 | if ((status = encode_getfattr(&xdr, args->bitmask, &hdr)) != 0) |
56ae19f3 | 1593 | goto out; |
d017931c | 1594 | if ((status = encode_restorefh(&xdr, &hdr)) != 0) |
56ae19f3 | 1595 | goto out; |
d017931c | 1596 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1597 | out: |
d017931c | 1598 | encode_nops(&hdr); |
1da177e4 LT |
1599 | return status; |
1600 | } | |
1601 | ||
1602 | /* | |
1603 | * Encode SYMLINK request | |
1604 | */ | |
8687b63a | 1605 | static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) |
1da177e4 LT |
1606 | { |
1607 | return nfs4_xdr_enc_create(req, p, args); | |
1608 | } | |
1609 | ||
1610 | /* | |
1611 | * Encode GETATTR request | |
1612 | */ | |
8687b63a | 1613 | static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) |
1da177e4 LT |
1614 | { |
1615 | struct xdr_stream xdr; | |
1616 | struct compound_hdr hdr = { | |
d017931c | 1617 | .nops = 0, |
1da177e4 LT |
1618 | }; |
1619 | int status; | |
1620 | ||
1621 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1622 | encode_compound_hdr(&xdr, &hdr); | |
d017931c AA |
1623 | if ((status = encode_putfh(&xdr, args->fh, &hdr)) == 0) |
1624 | status = encode_getfattr(&xdr, args->bitmask, &hdr); | |
1625 | encode_nops(&hdr); | |
1da177e4 LT |
1626 | return status; |
1627 | } | |
1628 | ||
1629 | /* | |
1630 | * Encode a CLOSE request | |
1631 | */ | |
8687b63a | 1632 | static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 | 1633 | { |
05d564fe AA |
1634 | struct xdr_stream xdr; |
1635 | struct compound_hdr hdr = { | |
d017931c | 1636 | .nops = 0, |
05d564fe AA |
1637 | }; |
1638 | int status; | |
1639 | ||
1640 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1641 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1642 | status = encode_putfh(&xdr, args->fh, &hdr); |
05d564fe AA |
1643 | if(status) |
1644 | goto out; | |
d017931c | 1645 | status = encode_close(&xdr, args, &hdr); |
516a6af6 TM |
1646 | if (status != 0) |
1647 | goto out; | |
d017931c | 1648 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1649 | out: |
d017931c | 1650 | encode_nops(&hdr); |
05d564fe | 1651 | return status; |
1da177e4 LT |
1652 | } |
1653 | ||
1654 | /* | |
1655 | * Encode an OPEN request | |
1656 | */ | |
8687b63a | 1657 | static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1658 | { |
1659 | struct xdr_stream xdr; | |
1660 | struct compound_hdr hdr = { | |
d017931c | 1661 | .nops = 0, |
1da177e4 LT |
1662 | }; |
1663 | int status; | |
1664 | ||
1665 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1666 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1667 | status = encode_putfh(&xdr, args->fh, &hdr); |
56ae19f3 TM |
1668 | if (status) |
1669 | goto out; | |
d017931c | 1670 | status = encode_savefh(&xdr, &hdr); |
1da177e4 LT |
1671 | if (status) |
1672 | goto out; | |
d017931c | 1673 | status = encode_open(&xdr, args, &hdr); |
1da177e4 LT |
1674 | if (status) |
1675 | goto out; | |
d017931c | 1676 | status = encode_getfh(&xdr, &hdr); |
1da177e4 LT |
1677 | if (status) |
1678 | goto out; | |
d017931c | 1679 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
56ae19f3 TM |
1680 | if (status) |
1681 | goto out; | |
d017931c | 1682 | status = encode_restorefh(&xdr, &hdr); |
56ae19f3 TM |
1683 | if (status) |
1684 | goto out; | |
d017931c | 1685 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1686 | out: |
d017931c | 1687 | encode_nops(&hdr); |
1da177e4 LT |
1688 | return status; |
1689 | } | |
1690 | ||
1691 | /* | |
1692 | * Encode an OPEN_CONFIRM request | |
1693 | */ | |
8687b63a | 1694 | static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) |
1da177e4 LT |
1695 | { |
1696 | struct xdr_stream xdr; | |
1697 | struct compound_hdr hdr = { | |
d017931c | 1698 | .nops = 0, |
1da177e4 LT |
1699 | }; |
1700 | int status; | |
1701 | ||
1702 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1703 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1704 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1705 | if(status) |
1706 | goto out; | |
d017931c | 1707 | status = encode_open_confirm(&xdr, args, &hdr); |
1da177e4 | 1708 | out: |
d017931c | 1709 | encode_nops(&hdr); |
1da177e4 LT |
1710 | return status; |
1711 | } | |
1712 | ||
1713 | /* | |
1714 | * Encode an OPEN request with no attributes. | |
1715 | */ | |
8687b63a | 1716 | static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) |
1da177e4 LT |
1717 | { |
1718 | struct xdr_stream xdr; | |
1719 | struct compound_hdr hdr = { | |
d017931c | 1720 | .nops = 0, |
1da177e4 LT |
1721 | }; |
1722 | int status; | |
1723 | ||
1724 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1725 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1726 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1727 | if (status) |
1728 | goto out; | |
d017931c | 1729 | status = encode_open(&xdr, args, &hdr); |
864472e9 TM |
1730 | if (status) |
1731 | goto out; | |
d017931c | 1732 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1733 | out: |
d017931c | 1734 | encode_nops(&hdr); |
1da177e4 LT |
1735 | return status; |
1736 | } | |
1737 | ||
1738 | /* | |
1739 | * Encode an OPEN_DOWNGRADE request | |
1740 | */ | |
8687b63a | 1741 | static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) |
1da177e4 LT |
1742 | { |
1743 | struct xdr_stream xdr; | |
1744 | struct compound_hdr hdr = { | |
d017931c | 1745 | .nops = 0, |
1da177e4 LT |
1746 | }; |
1747 | int status; | |
1748 | ||
1749 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1750 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1751 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1752 | if (status) |
1753 | goto out; | |
d017931c | 1754 | status = encode_open_downgrade(&xdr, args, &hdr); |
516a6af6 TM |
1755 | if (status != 0) |
1756 | goto out; | |
d017931c | 1757 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1758 | out: |
d017931c | 1759 | encode_nops(&hdr); |
1da177e4 LT |
1760 | return status; |
1761 | } | |
1762 | ||
1763 | /* | |
1764 | * Encode a LOCK request | |
1765 | */ | |
8687b63a | 1766 | static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) |
1da177e4 LT |
1767 | { |
1768 | struct xdr_stream xdr; | |
1769 | struct compound_hdr hdr = { | |
d017931c | 1770 | .nops = 0, |
1da177e4 LT |
1771 | }; |
1772 | int status; | |
1773 | ||
1774 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1775 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1776 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1777 | if(status) |
1778 | goto out; | |
d017931c | 1779 | status = encode_lock(&xdr, args, &hdr); |
1da177e4 | 1780 | out: |
d017931c | 1781 | encode_nops(&hdr); |
1da177e4 LT |
1782 | return status; |
1783 | } | |
1784 | ||
1785 | /* | |
1786 | * Encode a LOCKT request | |
1787 | */ | |
8687b63a | 1788 | static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) |
1da177e4 LT |
1789 | { |
1790 | struct xdr_stream xdr; | |
1791 | struct compound_hdr hdr = { | |
d017931c | 1792 | .nops = 0, |
1da177e4 LT |
1793 | }; |
1794 | int status; | |
1795 | ||
1796 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1797 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1798 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1799 | if(status) |
1800 | goto out; | |
d017931c | 1801 | status = encode_lockt(&xdr, args, &hdr); |
1da177e4 | 1802 | out: |
d017931c | 1803 | encode_nops(&hdr); |
1da177e4 LT |
1804 | return status; |
1805 | } | |
1806 | ||
1807 | /* | |
1808 | * Encode a LOCKU request | |
1809 | */ | |
8687b63a | 1810 | static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) |
1da177e4 LT |
1811 | { |
1812 | struct xdr_stream xdr; | |
1813 | struct compound_hdr hdr = { | |
d017931c | 1814 | .nops = 0, |
1da177e4 LT |
1815 | }; |
1816 | int status; | |
1817 | ||
1818 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1819 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1820 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1821 | if(status) |
1822 | goto out; | |
d017931c | 1823 | status = encode_locku(&xdr, args, &hdr); |
1da177e4 | 1824 | out: |
d017931c | 1825 | encode_nops(&hdr); |
1da177e4 LT |
1826 | return status; |
1827 | } | |
1828 | ||
1829 | /* | |
1830 | * Encode a READLINK request | |
1831 | */ | |
8687b63a | 1832 | static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) |
1da177e4 LT |
1833 | { |
1834 | struct xdr_stream xdr; | |
1835 | struct compound_hdr hdr = { | |
d017931c | 1836 | .nops = 0, |
1da177e4 | 1837 | }; |
e3a535e1 TM |
1838 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1839 | unsigned int replen; | |
1da177e4 LT |
1840 | int status; |
1841 | ||
1842 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1843 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1844 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1845 | if(status) |
1846 | goto out; | |
d017931c | 1847 | status = encode_readlink(&xdr, args, req, &hdr); |
e3a535e1 TM |
1848 | |
1849 | /* set up reply kvec | |
1850 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1851 | * + OP_READLINK + status + string length = 8 | |
1852 | */ | |
1853 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; | |
1854 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1855 | args->pgbase, args->pglen); | |
1856 | ||
1da177e4 | 1857 | out: |
d017931c | 1858 | encode_nops(&hdr); |
1da177e4 LT |
1859 | return status; |
1860 | } | |
1861 | ||
1862 | /* | |
1863 | * Encode a READDIR request | |
1864 | */ | |
8687b63a | 1865 | static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) |
1da177e4 LT |
1866 | { |
1867 | struct xdr_stream xdr; | |
1868 | struct compound_hdr hdr = { | |
d017931c | 1869 | .nops = 0, |
1da177e4 | 1870 | }; |
d6ac02df TM |
1871 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1872 | int replen; | |
1da177e4 LT |
1873 | int status; |
1874 | ||
1875 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1876 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1877 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1878 | if(status) |
1879 | goto out; | |
d017931c | 1880 | status = encode_readdir(&xdr, args, req, &hdr); |
d6ac02df TM |
1881 | |
1882 | /* set up reply kvec | |
1883 | * toplevel_status + taglen + rescount + OP_PUTFH + status | |
1884 | * + OP_READDIR + status + verifer(2) = 9 | |
1885 | */ | |
1886 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; | |
1887 | xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, | |
1888 | args->pgbase, args->count); | |
1889 | dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", | |
3110ff80 | 1890 | __func__, replen, args->pages, |
d6ac02df TM |
1891 | args->pgbase, args->count); |
1892 | ||
1da177e4 | 1893 | out: |
d017931c | 1894 | encode_nops(&hdr); |
1da177e4 LT |
1895 | return status; |
1896 | } | |
1897 | ||
1898 | /* | |
1899 | * Encode a READ request | |
1900 | */ | |
8687b63a | 1901 | static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) |
1da177e4 | 1902 | { |
1be27f36 | 1903 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
1da177e4 LT |
1904 | struct xdr_stream xdr; |
1905 | struct compound_hdr hdr = { | |
d017931c | 1906 | .nops = 0, |
1da177e4 LT |
1907 | }; |
1908 | int replen, status; | |
1909 | ||
1910 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1911 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1912 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
1913 | if (status) |
1914 | goto out; | |
d017931c | 1915 | status = encode_read(&xdr, args, &hdr); |
1da177e4 LT |
1916 | if (status) |
1917 | goto out; | |
1918 | ||
1919 | /* set up reply kvec | |
1920 | * toplevel status + taglen=0 + rescount + OP_PUTFH + status | |
1921 | * + OP_READ + status + eof + datalen = 9 | |
1922 | */ | |
1923 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; | |
1924 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1925 | args->pages, args->pgbase, args->count); | |
4f22ccc3 | 1926 | req->rq_rcv_buf.flags |= XDRBUF_READ; |
1da177e4 | 1927 | out: |
d017931c | 1928 | encode_nops(&hdr); |
1da177e4 LT |
1929 | return status; |
1930 | } | |
1931 | ||
1932 | /* | |
1933 | * Encode an SETATTR request | |
1934 | */ | |
8687b63a | 1935 | static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) |
1da177e4 | 1936 | { |
05d564fe AA |
1937 | struct xdr_stream xdr; |
1938 | struct compound_hdr hdr = { | |
d017931c | 1939 | .nops = 0, |
05d564fe AA |
1940 | }; |
1941 | int status; | |
1942 | ||
1943 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1944 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1945 | status = encode_putfh(&xdr, args->fh, &hdr); |
05d564fe AA |
1946 | if(status) |
1947 | goto out; | |
d017931c | 1948 | status = encode_setattr(&xdr, args, args->server, &hdr); |
05d564fe AA |
1949 | if(status) |
1950 | goto out; | |
d017931c | 1951 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 1952 | out: |
d017931c | 1953 | encode_nops(&hdr); |
05d564fe | 1954 | return status; |
1da177e4 LT |
1955 | } |
1956 | ||
029d105e BF |
1957 | /* |
1958 | * Encode a GETACL request | |
1959 | */ | |
1960 | static int | |
8687b63a | 1961 | nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, |
029d105e BF |
1962 | struct nfs_getaclargs *args) |
1963 | { | |
1964 | struct xdr_stream xdr; | |
1be27f36 | 1965 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
029d105e | 1966 | struct compound_hdr hdr = { |
d017931c | 1967 | .nops = 0, |
029d105e BF |
1968 | }; |
1969 | int replen, status; | |
1970 | ||
1971 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1972 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1973 | status = encode_putfh(&xdr, args->fh, &hdr); |
029d105e BF |
1974 | if (status) |
1975 | goto out; | |
d017931c | 1976 | status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); |
029d105e BF |
1977 | /* set up reply buffer: */ |
1978 | replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; | |
1979 | xdr_inline_pages(&req->rq_rcv_buf, replen, | |
1980 | args->acl_pages, args->acl_pgbase, args->acl_len); | |
1981 | out: | |
d017931c | 1982 | encode_nops(&hdr); |
029d105e BF |
1983 | return status; |
1984 | } | |
1985 | ||
1da177e4 LT |
1986 | /* |
1987 | * Encode a WRITE request | |
1988 | */ | |
8687b63a | 1989 | static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
1990 | { |
1991 | struct xdr_stream xdr; | |
1992 | struct compound_hdr hdr = { | |
d017931c | 1993 | .nops = 0, |
1da177e4 LT |
1994 | }; |
1995 | int status; | |
1996 | ||
1997 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
1998 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 1999 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
2000 | if (status) |
2001 | goto out; | |
d017931c | 2002 | status = encode_write(&xdr, args, &hdr); |
4f9838c7 TM |
2003 | if (status) |
2004 | goto out; | |
4f22ccc3 | 2005 | req->rq_snd_buf.flags |= XDRBUF_WRITE; |
d017931c | 2006 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 2007 | out: |
d017931c | 2008 | encode_nops(&hdr); |
1da177e4 LT |
2009 | return status; |
2010 | } | |
2011 | ||
2012 | /* | |
2013 | * a COMMIT request | |
2014 | */ | |
8687b63a | 2015 | static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) |
1da177e4 LT |
2016 | { |
2017 | struct xdr_stream xdr; | |
2018 | struct compound_hdr hdr = { | |
d017931c | 2019 | .nops = 0, |
1da177e4 LT |
2020 | }; |
2021 | int status; | |
2022 | ||
2023 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2024 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2025 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
2026 | if (status) |
2027 | goto out; | |
d017931c | 2028 | status = encode_commit(&xdr, args, &hdr); |
4f9838c7 TM |
2029 | if (status) |
2030 | goto out; | |
d017931c | 2031 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
1da177e4 | 2032 | out: |
d017931c | 2033 | encode_nops(&hdr); |
1da177e4 LT |
2034 | return status; |
2035 | } | |
2036 | ||
2037 | /* | |
2038 | * FSINFO request | |
2039 | */ | |
8687b63a | 2040 | static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) |
1da177e4 LT |
2041 | { |
2042 | struct xdr_stream xdr; | |
2043 | struct compound_hdr hdr = { | |
d017931c | 2044 | .nops = 0, |
1da177e4 LT |
2045 | }; |
2046 | int status; | |
2047 | ||
2048 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2049 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2050 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 | 2051 | if (!status) |
d017931c AA |
2052 | status = encode_fsinfo(&xdr, args->bitmask, &hdr); |
2053 | encode_nops(&hdr); | |
1da177e4 LT |
2054 | return status; |
2055 | } | |
2056 | ||
2057 | /* | |
2058 | * a PATHCONF request | |
2059 | */ | |
8687b63a | 2060 | static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) |
1da177e4 | 2061 | { |
1da177e4 LT |
2062 | struct xdr_stream xdr; |
2063 | struct compound_hdr hdr = { | |
d017931c | 2064 | .nops = 0, |
1da177e4 LT |
2065 | }; |
2066 | int status; | |
2067 | ||
2068 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2069 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2070 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
2071 | if (!status) |
2072 | status = encode_getattr_one(&xdr, | |
d017931c AA |
2073 | args->bitmask[0] & nfs4_pathconf_bitmap[0], |
2074 | &hdr); | |
2075 | encode_nops(&hdr); | |
1da177e4 LT |
2076 | return status; |
2077 | } | |
2078 | ||
2079 | /* | |
2080 | * a STATFS request | |
2081 | */ | |
8687b63a | 2082 | static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) |
1da177e4 | 2083 | { |
1da177e4 LT |
2084 | struct xdr_stream xdr; |
2085 | struct compound_hdr hdr = { | |
d017931c | 2086 | .nops = 0, |
1da177e4 LT |
2087 | }; |
2088 | int status; | |
2089 | ||
2090 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2091 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2092 | status = encode_putfh(&xdr, args->fh, &hdr); |
1da177e4 LT |
2093 | if (status == 0) |
2094 | status = encode_getattr_two(&xdr, | |
2095 | args->bitmask[0] & nfs4_statfs_bitmap[0], | |
d017931c AA |
2096 | args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); |
2097 | encode_nops(&hdr); | |
1da177e4 LT |
2098 | return status; |
2099 | } | |
2100 | ||
2101 | /* | |
2102 | * GETATTR_BITMAP request | |
2103 | */ | |
8687b63a | 2104 | static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) |
1da177e4 LT |
2105 | { |
2106 | struct xdr_stream xdr; | |
2107 | struct compound_hdr hdr = { | |
d017931c | 2108 | .nops = 0, |
1da177e4 LT |
2109 | }; |
2110 | int status; | |
2111 | ||
2112 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2113 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2114 | status = encode_putfh(&xdr, fhandle, &hdr); |
1da177e4 LT |
2115 | if (status == 0) |
2116 | status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| | |
2117 | FATTR4_WORD0_LINK_SUPPORT| | |
2118 | FATTR4_WORD0_SYMLINK_SUPPORT| | |
d017931c AA |
2119 | FATTR4_WORD0_ACLSUPPORT, &hdr); |
2120 | encode_nops(&hdr); | |
1da177e4 LT |
2121 | return status; |
2122 | } | |
2123 | ||
2124 | /* | |
2125 | * a RENEW request | |
2126 | */ | |
8687b63a | 2127 | static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2128 | { |
2129 | struct xdr_stream xdr; | |
2130 | struct compound_hdr hdr = { | |
d017931c | 2131 | .nops = 0, |
1da177e4 | 2132 | }; |
d017931c | 2133 | int status; |
1da177e4 LT |
2134 | |
2135 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2136 | encode_compound_hdr(&xdr, &hdr); | |
d017931c AA |
2137 | status = encode_renew(&xdr, clp, &hdr); |
2138 | encode_nops(&hdr); | |
2139 | return status; | |
1da177e4 LT |
2140 | } |
2141 | ||
2142 | /* | |
2143 | * a SETCLIENTID request | |
2144 | */ | |
8687b63a | 2145 | static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) |
1da177e4 LT |
2146 | { |
2147 | struct xdr_stream xdr; | |
2148 | struct compound_hdr hdr = { | |
d017931c | 2149 | .nops = 0, |
1da177e4 | 2150 | }; |
d017931c | 2151 | int status; |
1da177e4 LT |
2152 | |
2153 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2154 | encode_compound_hdr(&xdr, &hdr); | |
d017931c AA |
2155 | status = encode_setclientid(&xdr, sc, &hdr); |
2156 | encode_nops(&hdr); | |
2157 | return status; | |
1da177e4 LT |
2158 | } |
2159 | ||
2160 | /* | |
2161 | * a SETCLIENTID_CONFIRM request | |
2162 | */ | |
8687b63a | 2163 | static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) |
1da177e4 LT |
2164 | { |
2165 | struct xdr_stream xdr; | |
2166 | struct compound_hdr hdr = { | |
d017931c | 2167 | .nops = 0, |
1da177e4 LT |
2168 | }; |
2169 | const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; | |
2170 | int status; | |
2171 | ||
2172 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2173 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2174 | status = encode_setclientid_confirm(&xdr, clp, &hdr); |
1da177e4 | 2175 | if (!status) |
d017931c | 2176 | status = encode_putrootfh(&xdr, &hdr); |
1da177e4 | 2177 | if (!status) |
d017931c AA |
2178 | status = encode_fsinfo(&xdr, lease_bitmap, &hdr); |
2179 | encode_nops(&hdr); | |
1da177e4 LT |
2180 | return status; |
2181 | } | |
2182 | ||
2183 | /* | |
2184 | * DELEGRETURN request | |
2185 | */ | |
8687b63a | 2186 | static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) |
1da177e4 LT |
2187 | { |
2188 | struct xdr_stream xdr; | |
2189 | struct compound_hdr hdr = { | |
d017931c | 2190 | .nops = 0, |
1da177e4 LT |
2191 | }; |
2192 | int status; | |
2193 | ||
2194 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2195 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2196 | status = encode_putfh(&xdr, args->fhandle, &hdr); |
fa178f29 TM |
2197 | if (status != 0) |
2198 | goto out; | |
d017931c | 2199 | status = encode_delegreturn(&xdr, args->stateid, &hdr); |
fa178f29 TM |
2200 | if (status != 0) |
2201 | goto out; | |
d017931c | 2202 | status = encode_getfattr(&xdr, args->bitmask, &hdr); |
fa178f29 | 2203 | out: |
d017931c | 2204 | encode_nops(&hdr); |
1da177e4 LT |
2205 | return status; |
2206 | } | |
2207 | ||
683b57b4 TM |
2208 | /* |
2209 | * Encode FS_LOCATIONS request | |
2210 | */ | |
8687b63a | 2211 | static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) |
683b57b4 TM |
2212 | { |
2213 | struct xdr_stream xdr; | |
2214 | struct compound_hdr hdr = { | |
d017931c | 2215 | .nops = 0, |
683b57b4 | 2216 | }; |
1be27f36 | 2217 | struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; |
683b57b4 TM |
2218 | int replen; |
2219 | int status; | |
2220 | ||
2221 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
2222 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 2223 | if ((status = encode_putfh(&xdr, args->dir_fh, &hdr)) != 0) |
683b57b4 | 2224 | goto out; |
d017931c | 2225 | if ((status = encode_lookup(&xdr, args->name, &hdr)) != 0) |
683b57b4 | 2226 | goto out; |
d017931c | 2227 | if ((status = encode_fs_locations(&xdr, args->bitmask, &hdr)) != 0) |
683b57b4 TM |
2228 | goto out; |
2229 | /* set up reply | |
830b8e33 | 2230 | * toplevel_status + OP_PUTFH + status |
683b57b4 TM |
2231 | * + OP_LOOKUP + status + OP_GETATTR + status = 7 |
2232 | */ | |
2233 | replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; | |
2234 | xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, | |
2235 | 0, PAGE_SIZE); | |
2236 | out: | |
d017931c | 2237 | encode_nops(&hdr); |
683b57b4 TM |
2238 | return status; |
2239 | } | |
2240 | ||
1da177e4 LT |
2241 | /* |
2242 | * START OF "GENERIC" DECODE ROUTINES. | |
2243 | * These may look a little ugly since they are imported from a "generic" | |
2244 | * set of XDR encode/decode routines which are intended to be shared by | |
2245 | * all of our NFSv4 implementations (OpenBSD, MacOS X...). | |
2246 | * | |
2247 | * If the pain of reading these is too great, it should be a straightforward | |
2248 | * task to translate them into Linux-specific versions which are more | |
2249 | * consistent with the style used in NFSv2/v3... | |
2250 | */ | |
2251 | #define READ32(x) (x) = ntohl(*p++) | |
2252 | #define READ64(x) do { \ | |
2253 | (x) = (u64)ntohl(*p++) << 32; \ | |
2254 | (x) |= ntohl(*p++); \ | |
2255 | } while (0) | |
2256 | #define READTIME(x) do { \ | |
2257 | p++; \ | |
2258 | (x.tv_sec) = ntohl(*p++); \ | |
2259 | (x.tv_nsec) = ntohl(*p++); \ | |
2260 | } while (0) | |
2261 | #define COPYMEM(x,nbytes) do { \ | |
2262 | memcpy((x), p, nbytes); \ | |
2263 | p += XDR_QUADLEN(nbytes); \ | |
2264 | } while (0) | |
2265 | ||
2266 | #define READ_BUF(nbytes) do { \ | |
2267 | p = xdr_inline_decode(xdr, nbytes); \ | |
e4cc6ee2 | 2268 | if (unlikely(!p)) { \ |
fe82a183 | 2269 | dprintk("nfs: %s: prematurely hit end of receive" \ |
3110ff80 | 2270 | " buffer\n", __func__); \ |
fe82a183 | 2271 | dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ |
3110ff80 | 2272 | __func__, xdr->p, nbytes, xdr->end); \ |
1da177e4 LT |
2273 | return -EIO; \ |
2274 | } \ | |
2275 | } while (0) | |
2276 | ||
683b57b4 | 2277 | static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) |
1da177e4 | 2278 | { |
8687b63a | 2279 | __be32 *p; |
1da177e4 LT |
2280 | |
2281 | READ_BUF(4); | |
2282 | READ32(*len); | |
2283 | READ_BUF(*len); | |
2284 | *string = (char *)p; | |
2285 | return 0; | |
2286 | } | |
2287 | ||
2288 | static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) | |
2289 | { | |
8687b63a | 2290 | __be32 *p; |
1da177e4 LT |
2291 | |
2292 | READ_BUF(8); | |
2293 | READ32(hdr->status); | |
2294 | READ32(hdr->taglen); | |
6c0195a4 | 2295 | |
1da177e4 LT |
2296 | READ_BUF(hdr->taglen + 4); |
2297 | hdr->tag = (char *)p; | |
2298 | p += XDR_QUADLEN(hdr->taglen); | |
2299 | READ32(hdr->nops); | |
aadf6152 BH |
2300 | if (unlikely(hdr->nops < 1)) |
2301 | return nfs4_stat_to_errno(hdr->status); | |
1da177e4 LT |
2302 | return 0; |
2303 | } | |
2304 | ||
2305 | static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) | |
2306 | { | |
8687b63a | 2307 | __be32 *p; |
1da177e4 LT |
2308 | uint32_t opnum; |
2309 | int32_t nfserr; | |
2310 | ||
2311 | READ_BUF(8); | |
2312 | READ32(opnum); | |
2313 | if (opnum != expected) { | |
fe82a183 CL |
2314 | dprintk("nfs: Server returned operation" |
2315 | " %d but we issued a request for %d\n", | |
1da177e4 LT |
2316 | opnum, expected); |
2317 | return -EIO; | |
2318 | } | |
2319 | READ32(nfserr); | |
2320 | if (nfserr != NFS_OK) | |
856dff3d | 2321 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
2322 | return 0; |
2323 | } | |
2324 | ||
2325 | /* Dummy routine */ | |
adfa6f98 | 2326 | static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) |
1da177e4 | 2327 | { |
8687b63a | 2328 | __be32 *p; |
683b57b4 | 2329 | unsigned int strlen; |
1da177e4 LT |
2330 | char *str; |
2331 | ||
2332 | READ_BUF(12); | |
2333 | return decode_opaque_inline(xdr, &strlen, &str); | |
2334 | } | |
2335 | ||
2336 | static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) | |
2337 | { | |
8687b63a AV |
2338 | uint32_t bmlen; |
2339 | __be32 *p; | |
1da177e4 LT |
2340 | |
2341 | READ_BUF(4); | |
2342 | READ32(bmlen); | |
2343 | ||
2344 | bitmap[0] = bitmap[1] = 0; | |
2345 | READ_BUF((bmlen << 2)); | |
2346 | if (bmlen > 0) { | |
2347 | READ32(bitmap[0]); | |
2348 | if (bmlen > 1) | |
2349 | READ32(bitmap[1]); | |
2350 | } | |
2351 | return 0; | |
2352 | } | |
2353 | ||
8687b63a | 2354 | static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) |
1da177e4 | 2355 | { |
8687b63a | 2356 | __be32 *p; |
1da177e4 LT |
2357 | |
2358 | READ_BUF(4); | |
2359 | READ32(*attrlen); | |
2360 | *savep = xdr->p; | |
2361 | return 0; | |
2362 | } | |
2363 | ||
2364 | static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) | |
2365 | { | |
2366 | if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { | |
2367 | decode_attr_bitmap(xdr, bitmask); | |
2368 | bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; | |
2369 | } else | |
2370 | bitmask[0] = bitmask[1] = 0; | |
44109241 | 2371 | dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); |
1da177e4 LT |
2372 | return 0; |
2373 | } | |
2374 | ||
2375 | static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) | |
2376 | { | |
8687b63a | 2377 | __be32 *p; |
1da177e4 LT |
2378 | |
2379 | *type = 0; | |
2380 | if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) | |
2381 | return -EIO; | |
2382 | if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { | |
2383 | READ_BUF(4); | |
2384 | READ32(*type); | |
2385 | if (*type < NF4REG || *type > NF4NAMEDATTR) { | |
3110ff80 | 2386 | dprintk("%s: bad type %d\n", __func__, *type); |
1da177e4 LT |
2387 | return -EIO; |
2388 | } | |
2389 | bitmap[0] &= ~FATTR4_WORD0_TYPE; | |
2390 | } | |
3110ff80 | 2391 | dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type].nfs2type); |
1da177e4 LT |
2392 | return 0; |
2393 | } | |
2394 | ||
2395 | static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) | |
2396 | { | |
8687b63a | 2397 | __be32 *p; |
1da177e4 LT |
2398 | |
2399 | *change = 0; | |
2400 | if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) | |
2401 | return -EIO; | |
2402 | if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { | |
2403 | READ_BUF(8); | |
2404 | READ64(*change); | |
2405 | bitmap[0] &= ~FATTR4_WORD0_CHANGE; | |
2406 | } | |
3110ff80 | 2407 | dprintk("%s: change attribute=%Lu\n", __func__, |
1da177e4 LT |
2408 | (unsigned long long)*change); |
2409 | return 0; | |
2410 | } | |
2411 | ||
2412 | static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) | |
2413 | { | |
8687b63a | 2414 | __be32 *p; |
1da177e4 LT |
2415 | |
2416 | *size = 0; | |
2417 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) | |
2418 | return -EIO; | |
2419 | if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { | |
2420 | READ_BUF(8); | |
2421 | READ64(*size); | |
2422 | bitmap[0] &= ~FATTR4_WORD0_SIZE; | |
2423 | } | |
3110ff80 | 2424 | dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); |
1da177e4 LT |
2425 | return 0; |
2426 | } | |
2427 | ||
2428 | static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2429 | { | |
8687b63a | 2430 | __be32 *p; |
1da177e4 LT |
2431 | |
2432 | *res = 0; | |
2433 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) | |
2434 | return -EIO; | |
2435 | if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { | |
2436 | READ_BUF(4); | |
2437 | READ32(*res); | |
2438 | bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; | |
2439 | } | |
3110ff80 | 2440 | dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2441 | return 0; |
2442 | } | |
2443 | ||
2444 | static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2445 | { | |
8687b63a | 2446 | __be32 *p; |
1da177e4 LT |
2447 | |
2448 | *res = 0; | |
2449 | if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) | |
2450 | return -EIO; | |
2451 | if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { | |
2452 | READ_BUF(4); | |
2453 | READ32(*res); | |
2454 | bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; | |
2455 | } | |
3110ff80 | 2456 | dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); |
1da177e4 LT |
2457 | return 0; |
2458 | } | |
2459 | ||
8b4bdcf8 | 2460 | static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) |
1da177e4 | 2461 | { |
8687b63a | 2462 | __be32 *p; |
1da177e4 LT |
2463 | |
2464 | fsid->major = 0; | |
2465 | fsid->minor = 0; | |
2466 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) | |
2467 | return -EIO; | |
2468 | if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { | |
2469 | READ_BUF(16); | |
2470 | READ64(fsid->major); | |
2471 | READ64(fsid->minor); | |
2472 | bitmap[0] &= ~FATTR4_WORD0_FSID; | |
2473 | } | |
3110ff80 | 2474 | dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, |
1da177e4 LT |
2475 | (unsigned long long)fsid->major, |
2476 | (unsigned long long)fsid->minor); | |
2477 | return 0; | |
2478 | } | |
2479 | ||
2480 | static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2481 | { | |
8687b63a | 2482 | __be32 *p; |
1da177e4 LT |
2483 | |
2484 | *res = 60; | |
2485 | if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) | |
2486 | return -EIO; | |
2487 | if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { | |
2488 | READ_BUF(4); | |
2489 | READ32(*res); | |
2490 | bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; | |
2491 | } | |
3110ff80 | 2492 | dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2493 | return 0; |
2494 | } | |
2495 | ||
2496 | static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2497 | { | |
8687b63a | 2498 | __be32 *p; |
1da177e4 LT |
2499 | |
2500 | *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; | |
2501 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) | |
2502 | return -EIO; | |
2503 | if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { | |
2504 | READ_BUF(4); | |
2505 | READ32(*res); | |
2506 | bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; | |
2507 | } | |
3110ff80 | 2508 | dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); |
1da177e4 LT |
2509 | return 0; |
2510 | } | |
2511 | ||
2512 | static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) | |
2513 | { | |
8687b63a | 2514 | __be32 *p; |
1da177e4 LT |
2515 | |
2516 | *fileid = 0; | |
2517 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) | |
2518 | return -EIO; | |
2519 | if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { | |
2520 | READ_BUF(8); | |
2521 | READ64(*fileid); | |
2522 | bitmap[0] &= ~FATTR4_WORD0_FILEID; | |
2523 | } | |
3110ff80 | 2524 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
1da177e4 LT |
2525 | return 0; |
2526 | } | |
2527 | ||
99baf625 MN |
2528 | static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) |
2529 | { | |
8687b63a | 2530 | __be32 *p; |
99baf625 MN |
2531 | |
2532 | *fileid = 0; | |
2533 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) | |
2534 | return -EIO; | |
2535 | if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { | |
2536 | READ_BUF(8); | |
2537 | READ64(*fileid); | |
2538 | bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; | |
2539 | } | |
3110ff80 | 2540 | dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); |
99baf625 MN |
2541 | return 0; |
2542 | } | |
2543 | ||
1da177e4 LT |
2544 | static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2545 | { | |
8687b63a | 2546 | __be32 *p; |
1da177e4 LT |
2547 | int status = 0; |
2548 | ||
2549 | *res = 0; | |
2550 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) | |
2551 | return -EIO; | |
2552 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { | |
2553 | READ_BUF(8); | |
2554 | READ64(*res); | |
2555 | bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; | |
2556 | } | |
3110ff80 | 2557 | dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2558 | return status; |
2559 | } | |
2560 | ||
2561 | static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2562 | { | |
8687b63a | 2563 | __be32 *p; |
1da177e4 LT |
2564 | int status = 0; |
2565 | ||
2566 | *res = 0; | |
2567 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) | |
2568 | return -EIO; | |
2569 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { | |
2570 | READ_BUF(8); | |
2571 | READ64(*res); | |
2572 | bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; | |
2573 | } | |
3110ff80 | 2574 | dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2575 | return status; |
2576 | } | |
2577 | ||
2578 | static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2579 | { | |
8687b63a | 2580 | __be32 *p; |
1da177e4 LT |
2581 | int status = 0; |
2582 | ||
2583 | *res = 0; | |
2584 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) | |
2585 | return -EIO; | |
2586 | if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { | |
2587 | READ_BUF(8); | |
2588 | READ64(*res); | |
2589 | bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; | |
2590 | } | |
3110ff80 | 2591 | dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2592 | return status; |
2593 | } | |
2594 | ||
7aaa0b3b MN |
2595 | static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) |
2596 | { | |
464ad6b1 | 2597 | u32 n; |
8687b63a | 2598 | __be32 *p; |
7aaa0b3b MN |
2599 | int status = 0; |
2600 | ||
2601 | READ_BUF(4); | |
2602 | READ32(n); | |
33a43f28 AA |
2603 | if (n == 0) |
2604 | goto root_path; | |
7aaa0b3b MN |
2605 | dprintk("path "); |
2606 | path->ncomponents = 0; | |
2607 | while (path->ncomponents < n) { | |
2608 | struct nfs4_string *component = &path->components[path->ncomponents]; | |
2609 | status = decode_opaque_inline(xdr, &component->len, &component->data); | |
2610 | if (unlikely(status != 0)) | |
2611 | goto out_eio; | |
2612 | if (path->ncomponents != n) | |
2613 | dprintk("/"); | |
2614 | dprintk("%s", component->data); | |
2615 | if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) | |
2616 | path->ncomponents++; | |
2617 | else { | |
2618 | dprintk("cannot parse %d components in path\n", n); | |
2619 | goto out_eio; | |
2620 | } | |
2621 | } | |
2622 | out: | |
2623 | dprintk("\n"); | |
2624 | return status; | |
33a43f28 AA |
2625 | root_path: |
2626 | /* a root pathname is sent as a zero component4 */ | |
2627 | path->ncomponents = 1; | |
2628 | path->components[0].len=0; | |
2629 | path->components[0].data=NULL; | |
2630 | dprintk("path /\n"); | |
2631 | goto out; | |
7aaa0b3b MN |
2632 | out_eio: |
2633 | dprintk(" status %d", status); | |
2634 | status = -EIO; | |
2635 | goto out; | |
2636 | } | |
2637 | ||
2638 | static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) | |
683b57b4 TM |
2639 | { |
2640 | int n; | |
8687b63a | 2641 | __be32 *p; |
683b57b4 TM |
2642 | int status = -EIO; |
2643 | ||
2644 | if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) | |
2645 | goto out; | |
2646 | status = 0; | |
2647 | if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) | |
2648 | goto out; | |
3110ff80 | 2649 | dprintk("%s: fsroot ", __func__); |
7aaa0b3b | 2650 | status = decode_pathname(xdr, &res->fs_path); |
683b57b4 TM |
2651 | if (unlikely(status != 0)) |
2652 | goto out; | |
2653 | READ_BUF(4); | |
2654 | READ32(n); | |
2655 | if (n <= 0) | |
2656 | goto out_eio; | |
2657 | res->nlocations = 0; | |
2658 | while (res->nlocations < n) { | |
464ad6b1 | 2659 | u32 m; |
7aaa0b3b | 2660 | struct nfs4_fs_location *loc = &res->locations[res->nlocations]; |
683b57b4 | 2661 | |
7aaa0b3b MN |
2662 | READ_BUF(4); |
2663 | READ32(m); | |
7aaa0b3b MN |
2664 | |
2665 | loc->nservers = 0; | |
3110ff80 | 2666 | dprintk("%s: servers ", __func__); |
7aaa0b3b MN |
2667 | while (loc->nservers < m) { |
2668 | struct nfs4_string *server = &loc->servers[loc->nservers]; | |
2669 | status = decode_opaque_inline(xdr, &server->len, &server->data); | |
2670 | if (unlikely(status != 0)) | |
2671 | goto out_eio; | |
2672 | dprintk("%s ", server->data); | |
2673 | if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) | |
2674 | loc->nservers++; | |
2675 | else { | |
464ad6b1 CL |
2676 | unsigned int i; |
2677 | dprintk("%s: using first %u of %u servers " | |
2678 | "returned for location %u\n", | |
3110ff80 | 2679 | __func__, |
464ad6b1 CL |
2680 | NFS4_FS_LOCATION_MAXSERVERS, |
2681 | m, res->nlocations); | |
7aaa0b3b | 2682 | for (i = loc->nservers; i < m; i++) { |
2e42c3e2 | 2683 | unsigned int len; |
7aaa0b3b MN |
2684 | char *data; |
2685 | status = decode_opaque_inline(xdr, &len, &data); | |
2686 | if (unlikely(status != 0)) | |
2687 | goto out_eio; | |
2688 | } | |
2689 | } | |
2690 | } | |
2691 | status = decode_pathname(xdr, &loc->rootpath); | |
683b57b4 TM |
2692 | if (unlikely(status != 0)) |
2693 | goto out_eio; | |
7aaa0b3b | 2694 | if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) |
683b57b4 TM |
2695 | res->nlocations++; |
2696 | } | |
2697 | out: | |
3110ff80 | 2698 | dprintk("%s: fs_locations done, error = %d\n", __func__, status); |
683b57b4 TM |
2699 | return status; |
2700 | out_eio: | |
2701 | status = -EIO; | |
2702 | goto out; | |
2703 | } | |
2704 | ||
1da177e4 LT |
2705 | static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) |
2706 | { | |
8687b63a | 2707 | __be32 *p; |
1da177e4 LT |
2708 | int status = 0; |
2709 | ||
2710 | *res = 0; | |
2711 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) | |
2712 | return -EIO; | |
2713 | if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { | |
2714 | READ_BUF(8); | |
2715 | READ64(*res); | |
2716 | bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; | |
2717 | } | |
3110ff80 | 2718 | dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2719 | return status; |
2720 | } | |
2721 | ||
2722 | static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) | |
2723 | { | |
8687b63a | 2724 | __be32 *p; |
1da177e4 LT |
2725 | int status = 0; |
2726 | ||
2727 | *maxlink = 1; | |
2728 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) | |
2729 | return -EIO; | |
2730 | if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { | |
2731 | READ_BUF(4); | |
2732 | READ32(*maxlink); | |
2733 | bitmap[0] &= ~FATTR4_WORD0_MAXLINK; | |
2734 | } | |
3110ff80 | 2735 | dprintk("%s: maxlink=%u\n", __func__, *maxlink); |
1da177e4 LT |
2736 | return status; |
2737 | } | |
2738 | ||
2739 | static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) | |
2740 | { | |
8687b63a | 2741 | __be32 *p; |
1da177e4 LT |
2742 | int status = 0; |
2743 | ||
2744 | *maxname = 1024; | |
2745 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) | |
2746 | return -EIO; | |
2747 | if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { | |
2748 | READ_BUF(4); | |
2749 | READ32(*maxname); | |
2750 | bitmap[0] &= ~FATTR4_WORD0_MAXNAME; | |
2751 | } | |
3110ff80 | 2752 | dprintk("%s: maxname=%u\n", __func__, *maxname); |
1da177e4 LT |
2753 | return status; |
2754 | } | |
2755 | ||
2756 | static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2757 | { | |
8687b63a | 2758 | __be32 *p; |
1da177e4 LT |
2759 | int status = 0; |
2760 | ||
2761 | *res = 1024; | |
2762 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) | |
2763 | return -EIO; | |
2764 | if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { | |
2765 | uint64_t maxread; | |
2766 | READ_BUF(8); | |
2767 | READ64(maxread); | |
2768 | if (maxread > 0x7FFFFFFF) | |
2769 | maxread = 0x7FFFFFFF; | |
2770 | *res = (uint32_t)maxread; | |
2771 | bitmap[0] &= ~FATTR4_WORD0_MAXREAD; | |
2772 | } | |
3110ff80 | 2773 | dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2774 | return status; |
2775 | } | |
2776 | ||
2777 | static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) | |
2778 | { | |
8687b63a | 2779 | __be32 *p; |
1da177e4 LT |
2780 | int status = 0; |
2781 | ||
2782 | *res = 1024; | |
2783 | if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) | |
2784 | return -EIO; | |
2785 | if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { | |
2786 | uint64_t maxwrite; | |
2787 | READ_BUF(8); | |
2788 | READ64(maxwrite); | |
2789 | if (maxwrite > 0x7FFFFFFF) | |
2790 | maxwrite = 0x7FFFFFFF; | |
2791 | *res = (uint32_t)maxwrite; | |
2792 | bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; | |
2793 | } | |
3110ff80 | 2794 | dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); |
1da177e4 LT |
2795 | return status; |
2796 | } | |
2797 | ||
2798 | static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) | |
2799 | { | |
8687b63a | 2800 | __be32 *p; |
1da177e4 LT |
2801 | |
2802 | *mode = 0; | |
2803 | if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) | |
2804 | return -EIO; | |
2805 | if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { | |
2806 | READ_BUF(4); | |
2807 | READ32(*mode); | |
2808 | *mode &= ~S_IFMT; | |
2809 | bitmap[1] &= ~FATTR4_WORD1_MODE; | |
2810 | } | |
3110ff80 | 2811 | dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); |
1da177e4 LT |
2812 | return 0; |
2813 | } | |
2814 | ||
2815 | static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) | |
2816 | { | |
8687b63a | 2817 | __be32 *p; |
1da177e4 LT |
2818 | |
2819 | *nlink = 1; | |
2820 | if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) | |
2821 | return -EIO; | |
2822 | if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { | |
2823 | READ_BUF(4); | |
2824 | READ32(*nlink); | |
2825 | bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; | |
2826 | } | |
3110ff80 | 2827 | dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); |
1da177e4 LT |
2828 | return 0; |
2829 | } | |
2830 | ||
2e42c3e2 | 2831 | static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) |
1da177e4 | 2832 | { |
8687b63a AV |
2833 | uint32_t len; |
2834 | __be32 *p; | |
1da177e4 LT |
2835 | |
2836 | *uid = -2; | |
2837 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) | |
2838 | return -EIO; | |
2839 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { | |
2840 | READ_BUF(4); | |
2841 | READ32(len); | |
2842 | READ_BUF(len); | |
2843 | if (len < XDR_MAX_NETOBJ) { | |
2844 | if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) | |
2845 | dprintk("%s: nfs_map_name_to_uid failed!\n", | |
3110ff80 | 2846 | __func__); |
1da177e4 | 2847 | } else |
fe82a183 | 2848 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2849 | __func__, len); |
1da177e4 LT |
2850 | bitmap[1] &= ~FATTR4_WORD1_OWNER; |
2851 | } | |
3110ff80 | 2852 | dprintk("%s: uid=%d\n", __func__, (int)*uid); |
1da177e4 LT |
2853 | return 0; |
2854 | } | |
2855 | ||
2e42c3e2 | 2856 | static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) |
1da177e4 | 2857 | { |
8687b63a AV |
2858 | uint32_t len; |
2859 | __be32 *p; | |
1da177e4 LT |
2860 | |
2861 | *gid = -2; | |
2862 | if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) | |
2863 | return -EIO; | |
2864 | if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { | |
2865 | READ_BUF(4); | |
2866 | READ32(len); | |
2867 | READ_BUF(len); | |
2868 | if (len < XDR_MAX_NETOBJ) { | |
2869 | if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) | |
2870 | dprintk("%s: nfs_map_group_to_gid failed!\n", | |
3110ff80 | 2871 | __func__); |
1da177e4 | 2872 | } else |
fe82a183 | 2873 | dprintk("%s: name too long (%u)!\n", |
3110ff80 | 2874 | __func__, len); |
1da177e4 LT |
2875 | bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; |
2876 | } | |
3110ff80 | 2877 | dprintk("%s: gid=%d\n", __func__, (int)*gid); |
1da177e4 LT |
2878 | return 0; |
2879 | } | |
2880 | ||
2881 | static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) | |
2882 | { | |
8687b63a AV |
2883 | uint32_t major = 0, minor = 0; |
2884 | __be32 *p; | |
1da177e4 LT |
2885 | |
2886 | *rdev = MKDEV(0,0); | |
2887 | if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) | |
2888 | return -EIO; | |
2889 | if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { | |
2890 | dev_t tmp; | |
2891 | ||
2892 | READ_BUF(8); | |
2893 | READ32(major); | |
2894 | READ32(minor); | |
2895 | tmp = MKDEV(major, minor); | |
2896 | if (MAJOR(tmp) == major && MINOR(tmp) == minor) | |
2897 | *rdev = tmp; | |
2898 | bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; | |
2899 | } | |
3110ff80 | 2900 | dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); |
1da177e4 LT |
2901 | return 0; |
2902 | } | |
2903 | ||
2904 | static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2905 | { | |
8687b63a | 2906 | __be32 *p; |
1da177e4 LT |
2907 | int status = 0; |
2908 | ||
2909 | *res = 0; | |
2910 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) | |
2911 | return -EIO; | |
2912 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { | |
2913 | READ_BUF(8); | |
2914 | READ64(*res); | |
2915 | bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; | |
2916 | } | |
3110ff80 | 2917 | dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2918 | return status; |
2919 | } | |
2920 | ||
2921 | static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2922 | { | |
8687b63a | 2923 | __be32 *p; |
1da177e4 LT |
2924 | int status = 0; |
2925 | ||
2926 | *res = 0; | |
2927 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) | |
2928 | return -EIO; | |
2929 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { | |
2930 | READ_BUF(8); | |
2931 | READ64(*res); | |
2932 | bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; | |
2933 | } | |
3110ff80 | 2934 | dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2935 | return status; |
2936 | } | |
2937 | ||
2938 | static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) | |
2939 | { | |
8687b63a | 2940 | __be32 *p; |
1da177e4 LT |
2941 | int status = 0; |
2942 | ||
2943 | *res = 0; | |
2944 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) | |
2945 | return -EIO; | |
2946 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { | |
2947 | READ_BUF(8); | |
2948 | READ64(*res); | |
2949 | bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; | |
2950 | } | |
3110ff80 | 2951 | dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); |
1da177e4 LT |
2952 | return status; |
2953 | } | |
2954 | ||
2955 | static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) | |
2956 | { | |
8687b63a | 2957 | __be32 *p; |
1da177e4 LT |
2958 | |
2959 | *used = 0; | |
2960 | if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) | |
2961 | return -EIO; | |
2962 | if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { | |
2963 | READ_BUF(8); | |
2964 | READ64(*used); | |
2965 | bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; | |
2966 | } | |
3110ff80 | 2967 | dprintk("%s: space used=%Lu\n", __func__, |
1da177e4 LT |
2968 | (unsigned long long)*used); |
2969 | return 0; | |
2970 | } | |
2971 | ||
2972 | static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) | |
2973 | { | |
8687b63a | 2974 | __be32 *p; |
1da177e4 LT |
2975 | uint64_t sec; |
2976 | uint32_t nsec; | |
2977 | ||
2978 | READ_BUF(12); | |
2979 | READ64(sec); | |
2980 | READ32(nsec); | |
2981 | time->tv_sec = (time_t)sec; | |
2982 | time->tv_nsec = (long)nsec; | |
2983 | return 0; | |
2984 | } | |
2985 | ||
2986 | static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
2987 | { | |
2988 | int status = 0; | |
2989 | ||
2990 | time->tv_sec = 0; | |
2991 | time->tv_nsec = 0; | |
2992 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) | |
2993 | return -EIO; | |
2994 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { | |
2995 | status = decode_attr_time(xdr, time); | |
2996 | bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; | |
2997 | } | |
3110ff80 | 2998 | dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
2999 | return status; |
3000 | } | |
3001 | ||
3002 | static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3003 | { | |
3004 | int status = 0; | |
3005 | ||
3006 | time->tv_sec = 0; | |
3007 | time->tv_nsec = 0; | |
3008 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) | |
3009 | return -EIO; | |
3010 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { | |
3011 | status = decode_attr_time(xdr, time); | |
3012 | bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; | |
3013 | } | |
3110ff80 | 3014 | dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3015 | return status; |
3016 | } | |
3017 | ||
3018 | static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) | |
3019 | { | |
3020 | int status = 0; | |
3021 | ||
3022 | time->tv_sec = 0; | |
3023 | time->tv_nsec = 0; | |
3024 | if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) | |
3025 | return -EIO; | |
3026 | if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { | |
3027 | status = decode_attr_time(xdr, time); | |
3028 | bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; | |
3029 | } | |
3110ff80 | 3030 | dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); |
1da177e4 LT |
3031 | return status; |
3032 | } | |
3033 | ||
8687b63a | 3034 | static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) |
1da177e4 LT |
3035 | { |
3036 | unsigned int attrwords = XDR_QUADLEN(attrlen); | |
3037 | unsigned int nwords = xdr->p - savep; | |
3038 | ||
3039 | if (unlikely(attrwords != nwords)) { | |
fe82a183 CL |
3040 | dprintk("%s: server returned incorrect attribute length: " |
3041 | "%u %c %u\n", | |
3110ff80 | 3042 | __func__, |
1da177e4 LT |
3043 | attrwords << 2, |
3044 | (attrwords < nwords) ? '<' : '>', | |
3045 | nwords << 2); | |
3046 | return -EIO; | |
3047 | } | |
3048 | return 0; | |
3049 | } | |
3050 | ||
3051 | static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3052 | { | |
8687b63a | 3053 | __be32 *p; |
1da177e4 LT |
3054 | |
3055 | READ_BUF(20); | |
3056 | READ32(cinfo->atomic); | |
3057 | READ64(cinfo->before); | |
3058 | READ64(cinfo->after); | |
3059 | return 0; | |
3060 | } | |
3061 | ||
3062 | static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) | |
3063 | { | |
8687b63a | 3064 | __be32 *p; |
1da177e4 LT |
3065 | uint32_t supp, acc; |
3066 | int status; | |
3067 | ||
3068 | status = decode_op_hdr(xdr, OP_ACCESS); | |
3069 | if (status) | |
3070 | return status; | |
3071 | READ_BUF(8); | |
3072 | READ32(supp); | |
3073 | READ32(acc); | |
3074 | access->supported = supp; | |
3075 | access->access = acc; | |
3076 | return 0; | |
3077 | } | |
3078 | ||
3079 | static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3080 | { | |
8687b63a | 3081 | __be32 *p; |
1da177e4 LT |
3082 | int status; |
3083 | ||
3084 | status = decode_op_hdr(xdr, OP_CLOSE); | |
c1d51931 TM |
3085 | if (status != -EIO) |
3086 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3087 | if (status) |
3088 | return status; | |
8ae20abd TM |
3089 | READ_BUF(NFS4_STATEID_SIZE); |
3090 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3091 | return 0; |
3092 | } | |
3093 | ||
3094 | static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3095 | { | |
8687b63a | 3096 | __be32 *p; |
1da177e4 LT |
3097 | int status; |
3098 | ||
3099 | status = decode_op_hdr(xdr, OP_COMMIT); | |
3100 | if (status) | |
3101 | return status; | |
3102 | READ_BUF(8); | |
3103 | COPYMEM(res->verf->verifier, 8); | |
3104 | return 0; | |
3105 | } | |
3106 | ||
3107 | static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3108 | { | |
8687b63a | 3109 | __be32 *p; |
1da177e4 LT |
3110 | uint32_t bmlen; |
3111 | int status; | |
3112 | ||
3113 | status = decode_op_hdr(xdr, OP_CREATE); | |
3114 | if (status) | |
3115 | return status; | |
3116 | if ((status = decode_change_info(xdr, cinfo))) | |
3117 | return status; | |
3118 | READ_BUF(4); | |
3119 | READ32(bmlen); | |
3120 | READ_BUF(bmlen << 2); | |
3121 | return 0; | |
3122 | } | |
3123 | ||
3124 | static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) | |
3125 | { | |
8687b63a | 3126 | __be32 *savep; |
6c0195a4 | 3127 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 LT |
3128 | int status; |
3129 | ||
3130 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3131 | goto xdr_error; | |
3132 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3133 | goto xdr_error; | |
3134 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3135 | goto xdr_error; | |
3136 | if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) | |
3137 | goto xdr_error; | |
3138 | if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) | |
3139 | goto xdr_error; | |
3140 | if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) | |
3141 | goto xdr_error; | |
3142 | if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) | |
3143 | goto xdr_error; | |
3144 | status = verify_attr_len(xdr, savep, attrlen); | |
3145 | xdr_error: | |
3110ff80 | 3146 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3147 | return status; |
3148 | } | |
6c0195a4 | 3149 | |
1da177e4 LT |
3150 | static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) |
3151 | { | |
8687b63a | 3152 | __be32 *savep; |
6c0195a4 | 3153 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3154 | int status; |
6c0195a4 | 3155 | |
1da177e4 LT |
3156 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3157 | goto xdr_error; | |
3158 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3159 | goto xdr_error; | |
3160 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3161 | goto xdr_error; | |
3162 | ||
3163 | if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) | |
3164 | goto xdr_error; | |
3165 | if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) | |
3166 | goto xdr_error; | |
3167 | if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) | |
3168 | goto xdr_error; | |
3169 | if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) | |
3170 | goto xdr_error; | |
3171 | if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) | |
3172 | goto xdr_error; | |
3173 | if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) | |
3174 | goto xdr_error; | |
3175 | ||
3176 | status = verify_attr_len(xdr, savep, attrlen); | |
3177 | xdr_error: | |
3110ff80 | 3178 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3179 | return status; |
3180 | } | |
3181 | ||
3182 | static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) | |
3183 | { | |
8687b63a | 3184 | __be32 *savep; |
6c0195a4 | 3185 | uint32_t attrlen, bitmap[2] = {0}; |
1da177e4 | 3186 | int status; |
6c0195a4 | 3187 | |
1da177e4 LT |
3188 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) |
3189 | goto xdr_error; | |
3190 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3191 | goto xdr_error; | |
3192 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3193 | goto xdr_error; | |
3194 | ||
3195 | if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) | |
3196 | goto xdr_error; | |
3197 | if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) | |
3198 | goto xdr_error; | |
3199 | ||
3200 | status = verify_attr_len(xdr, savep, attrlen); | |
3201 | xdr_error: | |
3110ff80 | 3202 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3203 | return status; |
3204 | } | |
3205 | ||
3206 | static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) | |
3207 | { | |
8687b63a | 3208 | __be32 *savep; |
1da177e4 LT |
3209 | uint32_t attrlen, |
3210 | bitmap[2] = {0}, | |
3211 | type; | |
3212 | int status, fmode = 0; | |
99baf625 | 3213 | uint64_t fileid; |
1da177e4 LT |
3214 | |
3215 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3216 | goto xdr_error; | |
3217 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3218 | goto xdr_error; | |
3219 | ||
3220 | fattr->bitmap[0] = bitmap[0]; | |
3221 | fattr->bitmap[1] = bitmap[1]; | |
3222 | ||
3223 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3224 | goto xdr_error; | |
3225 | ||
3226 | ||
3227 | if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) | |
3228 | goto xdr_error; | |
3229 | fattr->type = nfs_type2fmt[type].nfs2type; | |
3230 | fmode = nfs_type2fmt[type].mode; | |
3231 | ||
3232 | if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) | |
3233 | goto xdr_error; | |
3234 | if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) | |
3235 | goto xdr_error; | |
8b4bdcf8 | 3236 | if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) |
1da177e4 LT |
3237 | goto xdr_error; |
3238 | if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) | |
3239 | goto xdr_error; | |
683b57b4 | 3240 | if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, |
7aaa0b3b | 3241 | struct nfs4_fs_locations, |
683b57b4 TM |
3242 | fattr))) != 0) |
3243 | goto xdr_error; | |
1da177e4 LT |
3244 | if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) |
3245 | goto xdr_error; | |
3246 | fattr->mode |= fmode; | |
3247 | if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) | |
3248 | goto xdr_error; | |
7539bbab | 3249 | if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) |
1da177e4 | 3250 | goto xdr_error; |
7539bbab | 3251 | if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) |
1da177e4 LT |
3252 | goto xdr_error; |
3253 | if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) | |
3254 | goto xdr_error; | |
3255 | if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) | |
3256 | goto xdr_error; | |
3257 | if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) | |
3258 | goto xdr_error; | |
3259 | if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) | |
3260 | goto xdr_error; | |
3261 | if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) | |
3262 | goto xdr_error; | |
99baf625 MN |
3263 | if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) |
3264 | goto xdr_error; | |
3265 | if (fattr->fileid == 0 && fileid != 0) | |
3266 | fattr->fileid = fileid; | |
33801147 | 3267 | if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) |
1da177e4 | 3268 | fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; |
1da177e4 | 3269 | xdr_error: |
3110ff80 | 3270 | dprintk("%s: xdr returned %d\n", __func__, -status); |
1da177e4 LT |
3271 | return status; |
3272 | } | |
3273 | ||
3274 | ||
3275 | static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) | |
3276 | { | |
8687b63a | 3277 | __be32 *savep; |
1da177e4 LT |
3278 | uint32_t attrlen, bitmap[2]; |
3279 | int status; | |
3280 | ||
3281 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3282 | goto xdr_error; | |
3283 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3284 | goto xdr_error; | |
3285 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3286 | goto xdr_error; | |
3287 | ||
3288 | fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ | |
3289 | ||
3290 | if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) | |
3291 | goto xdr_error; | |
3292 | if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) | |
3293 | goto xdr_error; | |
3294 | if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) | |
3295 | goto xdr_error; | |
3296 | fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; | |
3297 | if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) | |
3298 | goto xdr_error; | |
3299 | fsinfo->wtpref = fsinfo->wtmax; | |
3300 | ||
3301 | status = verify_attr_len(xdr, savep, attrlen); | |
3302 | xdr_error: | |
3110ff80 | 3303 | dprintk("%s: xdr returned %d!\n", __func__, -status); |
1da177e4 LT |
3304 | return status; |
3305 | } | |
3306 | ||
3307 | static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) | |
3308 | { | |
8687b63a | 3309 | __be32 *p; |
1da177e4 LT |
3310 | uint32_t len; |
3311 | int status; | |
3312 | ||
9936781d TM |
3313 | /* Zero handle first to allow comparisons */ |
3314 | memset(fh, 0, sizeof(*fh)); | |
3315 | ||
1da177e4 LT |
3316 | status = decode_op_hdr(xdr, OP_GETFH); |
3317 | if (status) | |
3318 | return status; | |
1da177e4 LT |
3319 | |
3320 | READ_BUF(4); | |
3321 | READ32(len); | |
3322 | if (len > NFS4_FHSIZE) | |
3323 | return -EIO; | |
3324 | fh->size = len; | |
3325 | READ_BUF(len); | |
3326 | COPYMEM(fh->data, len); | |
3327 | return 0; | |
3328 | } | |
3329 | ||
3330 | static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3331 | { | |
3332 | int status; | |
6c0195a4 | 3333 | |
1da177e4 LT |
3334 | status = decode_op_hdr(xdr, OP_LINK); |
3335 | if (status) | |
3336 | return status; | |
3337 | return decode_change_info(xdr, cinfo); | |
3338 | } | |
3339 | ||
3340 | /* | |
3341 | * We create the owner, so we know a proper owner.id length is 4. | |
3342 | */ | |
911d1aaf | 3343 | static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) |
1da177e4 | 3344 | { |
911d1aaf | 3345 | uint64_t offset, length, clientid; |
8687b63a | 3346 | __be32 *p; |
911d1aaf | 3347 | uint32_t namelen, type; |
1da177e4 LT |
3348 | |
3349 | READ_BUF(32); | |
911d1aaf TM |
3350 | READ64(offset); |
3351 | READ64(length); | |
3352 | READ32(type); | |
3353 | if (fl != NULL) { | |
3354 | fl->fl_start = (loff_t)offset; | |
3355 | fl->fl_end = fl->fl_start + (loff_t)length - 1; | |
3356 | if (length == ~(uint64_t)0) | |
3357 | fl->fl_end = OFFSET_MAX; | |
3358 | fl->fl_type = F_WRLCK; | |
3359 | if (type & 1) | |
3360 | fl->fl_type = F_RDLCK; | |
3361 | fl->fl_pid = 0; | |
3362 | } | |
3363 | READ64(clientid); | |
1da177e4 LT |
3364 | READ32(namelen); |
3365 | READ_BUF(namelen); | |
1da177e4 LT |
3366 | return -NFS4ERR_DENIED; |
3367 | } | |
3368 | ||
911d1aaf | 3369 | static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) |
1da177e4 | 3370 | { |
8687b63a | 3371 | __be32 *p; |
1da177e4 LT |
3372 | int status; |
3373 | ||
3374 | status = decode_op_hdr(xdr, OP_LOCK); | |
c1d51931 TM |
3375 | if (status == -EIO) |
3376 | goto out; | |
1da177e4 | 3377 | if (status == 0) { |
8ae20abd TM |
3378 | READ_BUF(NFS4_STATEID_SIZE); |
3379 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3380 | } else if (status == -NFS4ERR_DENIED) |
c1d51931 TM |
3381 | status = decode_lock_denied(xdr, NULL); |
3382 | if (res->open_seqid != NULL) | |
3383 | nfs_increment_open_seqid(status, res->open_seqid); | |
3384 | nfs_increment_lock_seqid(status, res->lock_seqid); | |
3385 | out: | |
1da177e4 LT |
3386 | return status; |
3387 | } | |
3388 | ||
911d1aaf | 3389 | static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) |
1da177e4 LT |
3390 | { |
3391 | int status; | |
3392 | status = decode_op_hdr(xdr, OP_LOCKT); | |
3393 | if (status == -NFS4ERR_DENIED) | |
911d1aaf | 3394 | return decode_lock_denied(xdr, res->denied); |
1da177e4 LT |
3395 | return status; |
3396 | } | |
3397 | ||
911d1aaf | 3398 | static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) |
1da177e4 | 3399 | { |
8687b63a | 3400 | __be32 *p; |
1da177e4 LT |
3401 | int status; |
3402 | ||
3403 | status = decode_op_hdr(xdr, OP_LOCKU); | |
c1d51931 TM |
3404 | if (status != -EIO) |
3405 | nfs_increment_lock_seqid(status, res->seqid); | |
1da177e4 | 3406 | if (status == 0) { |
8ae20abd TM |
3407 | READ_BUF(NFS4_STATEID_SIZE); |
3408 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3409 | } |
3410 | return status; | |
3411 | } | |
3412 | ||
3413 | static int decode_lookup(struct xdr_stream *xdr) | |
3414 | { | |
3415 | return decode_op_hdr(xdr, OP_LOOKUP); | |
3416 | } | |
3417 | ||
3418 | /* This is too sick! */ | |
3419 | static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) | |
3420 | { | |
05d564fe | 3421 | __be32 *p; |
1da177e4 LT |
3422 | uint32_t limit_type, nblocks, blocksize; |
3423 | ||
3424 | READ_BUF(12); | |
3425 | READ32(limit_type); | |
3426 | switch (limit_type) { | |
05d564fe AA |
3427 | case 1: |
3428 | READ64(*maxsize); | |
3429 | break; | |
3430 | case 2: | |
3431 | READ32(nblocks); | |
3432 | READ32(blocksize); | |
3433 | *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; | |
1da177e4 LT |
3434 | } |
3435 | return 0; | |
3436 | } | |
3437 | ||
3438 | static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) | |
3439 | { | |
05d564fe AA |
3440 | __be32 *p; |
3441 | uint32_t delegation_type; | |
1da177e4 LT |
3442 | |
3443 | READ_BUF(4); | |
3444 | READ32(delegation_type); | |
3445 | if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { | |
3446 | res->delegation_type = 0; | |
3447 | return 0; | |
3448 | } | |
8ae20abd TM |
3449 | READ_BUF(NFS4_STATEID_SIZE+4); |
3450 | COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3451 | READ32(res->do_recall); |
05d564fe | 3452 | |
1da177e4 | 3453 | switch (delegation_type) { |
05d564fe AA |
3454 | case NFS4_OPEN_DELEGATE_READ: |
3455 | res->delegation_type = FMODE_READ; | |
3456 | break; | |
3457 | case NFS4_OPEN_DELEGATE_WRITE: | |
3458 | res->delegation_type = FMODE_WRITE|FMODE_READ; | |
3459 | if (decode_space_limit(xdr, &res->maxsize) < 0) | |
1da177e4 LT |
3460 | return -EIO; |
3461 | } | |
7539bbab | 3462 | return decode_ace(xdr, NULL, res->server->nfs_client); |
1da177e4 LT |
3463 | } |
3464 | ||
3465 | static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) | |
3466 | { | |
05d564fe | 3467 | __be32 *p; |
aa53ed54 | 3468 | uint32_t savewords, bmlen, i; |
05d564fe | 3469 | int status; |
1da177e4 | 3470 | |
05d564fe | 3471 | status = decode_op_hdr(xdr, OP_OPEN); |
c1d51931 TM |
3472 | if (status != -EIO) |
3473 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3474 | if (status) |
3475 | return status; | |
3476 | READ_BUF(NFS4_STATEID_SIZE); | |
3477 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 | 3478 | |
05d564fe | 3479 | decode_change_info(xdr, &res->cinfo); |
1da177e4 | 3480 | |
05d564fe AA |
3481 | READ_BUF(8); |
3482 | READ32(res->rflags); | |
3483 | READ32(bmlen); | |
3484 | if (bmlen > 10) | |
3485 | goto xdr_error; | |
1da177e4 | 3486 | |
05d564fe | 3487 | READ_BUF(bmlen << 2); |
aa53ed54 JL |
3488 | savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); |
3489 | for (i = 0; i < savewords; ++i) | |
3490 | READ32(res->attrset[i]); | |
3491 | for (; i < NFS4_BITMAP_SIZE; i++) | |
3492 | res->attrset[i] = 0; | |
3493 | ||
1da177e4 LT |
3494 | return decode_delegation(xdr, res); |
3495 | xdr_error: | |
3110ff80 | 3496 | dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); |
1da177e4 LT |
3497 | return -EIO; |
3498 | } | |
3499 | ||
3500 | static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) | |
3501 | { | |
05d564fe | 3502 | __be32 *p; |
1da177e4 LT |
3503 | int status; |
3504 | ||
05d564fe | 3505 | status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); |
c1d51931 TM |
3506 | if (status != -EIO) |
3507 | nfs_increment_open_seqid(status, res->seqid); | |
05d564fe AA |
3508 | if (status) |
3509 | return status; | |
3510 | READ_BUF(NFS4_STATEID_SIZE); | |
3511 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
3512 | return 0; | |
1da177e4 LT |
3513 | } |
3514 | ||
3515 | static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) | |
3516 | { | |
8687b63a | 3517 | __be32 *p; |
1da177e4 LT |
3518 | int status; |
3519 | ||
3520 | status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); | |
c1d51931 TM |
3521 | if (status != -EIO) |
3522 | nfs_increment_open_seqid(status, res->seqid); | |
1da177e4 LT |
3523 | if (status) |
3524 | return status; | |
8ae20abd TM |
3525 | READ_BUF(NFS4_STATEID_SIZE); |
3526 | COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); | |
1da177e4 LT |
3527 | return 0; |
3528 | } | |
3529 | ||
3530 | static int decode_putfh(struct xdr_stream *xdr) | |
3531 | { | |
3532 | return decode_op_hdr(xdr, OP_PUTFH); | |
3533 | } | |
3534 | ||
3535 | static int decode_putrootfh(struct xdr_stream *xdr) | |
3536 | { | |
3537 | return decode_op_hdr(xdr, OP_PUTROOTFH); | |
3538 | } | |
3539 | ||
3540 | static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) | |
3541 | { | |
3542 | struct kvec *iov = req->rq_rcv_buf.head; | |
8687b63a | 3543 | __be32 *p; |
1da177e4 LT |
3544 | uint32_t count, eof, recvd, hdrlen; |
3545 | int status; | |
3546 | ||
3547 | status = decode_op_hdr(xdr, OP_READ); | |
3548 | if (status) | |
3549 | return status; | |
3550 | READ_BUF(8); | |
3551 | READ32(eof); | |
3552 | READ32(count); | |
3553 | hdrlen = (u8 *) p - (u8 *) iov->iov_base; | |
3554 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3555 | if (count > recvd) { | |
fe82a183 | 3556 | dprintk("NFS: server cheating in read reply: " |
1da177e4 LT |
3557 | "count %u > recvd %u\n", count, recvd); |
3558 | count = recvd; | |
3559 | eof = 0; | |
3560 | } | |
3561 | xdr_read_pages(xdr, count); | |
3562 | res->eof = eof; | |
3563 | res->count = count; | |
3564 | return 0; | |
3565 | } | |
3566 | ||
3567 | static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) | |
3568 | { | |
3569 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3570 | struct page *page = *rcvbuf->pages; | |
3571 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3572 | size_t hdrlen; |
3573 | u32 recvd, pglen = rcvbuf->page_len; | |
8687b63a | 3574 | __be32 *end, *entry, *p, *kaddr; |
7bda2cdf | 3575 | unsigned int nr = 0; |
bcecff77 | 3576 | int status; |
1da177e4 LT |
3577 | |
3578 | status = decode_op_hdr(xdr, OP_READDIR); | |
3579 | if (status) | |
3580 | return status; | |
3581 | READ_BUF(8); | |
3582 | COPYMEM(readdir->verifier.data, 8); | |
44109241 FI |
3583 | dprintk("%s: verifier = %08x:%08x\n", |
3584 | __func__, | |
eadf4598 TM |
3585 | ((u32 *)readdir->verifier.data)[0], |
3586 | ((u32 *)readdir->verifier.data)[1]); | |
3587 | ||
1da177e4 LT |
3588 | |
3589 | hdrlen = (char *) p - (char *) iov->iov_base; | |
3590 | recvd = rcvbuf->len - hdrlen; | |
3591 | if (pglen > recvd) | |
3592 | pglen = recvd; | |
3593 | xdr_read_pages(xdr, pglen); | |
3594 | ||
3595 | BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); | |
8687b63a | 3596 | kaddr = p = kmap_atomic(page, KM_USER0); |
e8896495 | 3597 | end = p + ((pglen + readdir->pgbase) >> 2); |
1da177e4 | 3598 | entry = p; |
7bda2cdf JL |
3599 | |
3600 | /* Make sure the packet actually has a value_follows and EOF entry */ | |
3601 | if ((entry + 1) > end) | |
3602 | goto short_pkt; | |
3603 | ||
3604 | for (; *p++; nr++) { | |
bcecff77 | 3605 | u32 len, attrlen, xlen; |
e8896495 | 3606 | if (end - p < 3) |
1da177e4 | 3607 | goto short_pkt; |
eadf4598 | 3608 | dprintk("cookie = %Lu, ", *((unsigned long long *)p)); |
1da177e4 LT |
3609 | p += 2; /* cookie */ |
3610 | len = ntohl(*p++); /* filename length */ | |
3611 | if (len > NFS4_MAXNAMLEN) { | |
fe82a183 CL |
3612 | dprintk("NFS: giant filename in readdir (len 0x%x)\n", |
3613 | len); | |
1da177e4 LT |
3614 | goto err_unmap; |
3615 | } | |
e8896495 DH |
3616 | xlen = XDR_QUADLEN(len); |
3617 | if (end - p < xlen + 1) | |
1da177e4 | 3618 | goto short_pkt; |
e8896495 DH |
3619 | dprintk("filename = %*s\n", len, (char *)p); |
3620 | p += xlen; | |
1da177e4 | 3621 | len = ntohl(*p++); /* bitmap length */ |
e8896495 | 3622 | if (end - p < len + 1) |
1da177e4 | 3623 | goto short_pkt; |
e8896495 | 3624 | p += len; |
1da177e4 | 3625 | attrlen = XDR_QUADLEN(ntohl(*p++)); |
e8896495 | 3626 | if (end - p < attrlen + 2) |
1da177e4 | 3627 | goto short_pkt; |
e8896495 | 3628 | p += attrlen; /* attributes */ |
1da177e4 LT |
3629 | entry = p; |
3630 | } | |
7bda2cdf JL |
3631 | /* |
3632 | * Apparently some server sends responses that are a valid size, but | |
3633 | * contain no entries, and have value_follows==0 and EOF==0. For | |
3634 | * those, just set the EOF marker. | |
3635 | */ | |
3636 | if (!nr && entry[1] == 0) { | |
3637 | dprintk("NFS: readdir reply truncated!\n"); | |
3638 | entry[1] = 1; | |
3639 | } | |
6c0195a4 | 3640 | out: |
1da177e4 LT |
3641 | kunmap_atomic(kaddr, KM_USER0); |
3642 | return 0; | |
3643 | short_pkt: | |
7bda2cdf JL |
3644 | /* |
3645 | * When we get a short packet there are 2 possibilities. We can | |
3646 | * return an error, or fix up the response to look like a valid | |
3647 | * response and return what we have so far. If there are no | |
3648 | * entries and the packet was short, then return -EIO. If there | |
3649 | * are valid entries in the response, return them and pretend that | |
3650 | * the call was successful, but incomplete. The caller can retry the | |
3651 | * readdir starting at the last cookie. | |
3652 | */ | |
3110ff80 | 3653 | dprintk("%s: short packet at entry %d\n", __func__, nr); |
1da177e4 | 3654 | entry[0] = entry[1] = 0; |
7bda2cdf JL |
3655 | if (nr) |
3656 | goto out; | |
1da177e4 LT |
3657 | err_unmap: |
3658 | kunmap_atomic(kaddr, KM_USER0); | |
3659 | return -errno_NFSERR_IO; | |
3660 | } | |
3661 | ||
3662 | static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) | |
3663 | { | |
3664 | struct xdr_buf *rcvbuf = &req->rq_rcv_buf; | |
3665 | struct kvec *iov = rcvbuf->head; | |
bcecff77 CL |
3666 | size_t hdrlen; |
3667 | u32 len, recvd; | |
8687b63a | 3668 | __be32 *p; |
1da177e4 LT |
3669 | char *kaddr; |
3670 | int status; | |
3671 | ||
3672 | status = decode_op_hdr(xdr, OP_READLINK); | |
3673 | if (status) | |
3674 | return status; | |
3675 | ||
3676 | /* Convert length of symlink */ | |
3677 | READ_BUF(4); | |
3678 | READ32(len); | |
3679 | if (len >= rcvbuf->page_len || len <= 0) { | |
fe82a183 | 3680 | dprintk("nfs: server returned giant symlink!\n"); |
1da177e4 LT |
3681 | return -ENAMETOOLONG; |
3682 | } | |
3683 | hdrlen = (char *) xdr->p - (char *) iov->iov_base; | |
3684 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3685 | if (recvd < len) { | |
fe82a183 | 3686 | dprintk("NFS: server cheating in readlink reply: " |
1da177e4 LT |
3687 | "count %u > recvd %u\n", len, recvd); |
3688 | return -EIO; | |
3689 | } | |
3690 | xdr_read_pages(xdr, len); | |
3691 | /* | |
3692 | * The XDR encode routine has set things up so that | |
3693 | * the link text will be copied directly into the | |
3694 | * buffer. We just have to do overflow-checking, | |
3695 | * and and null-terminate the text (the VFS expects | |
3696 | * null-termination). | |
3697 | */ | |
3698 | kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); | |
3699 | kaddr[len+rcvbuf->page_base] = '\0'; | |
3700 | kunmap_atomic(kaddr, KM_USER0); | |
3701 | return 0; | |
3702 | } | |
3703 | ||
3704 | static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) | |
3705 | { | |
3706 | int status; | |
3707 | ||
3708 | status = decode_op_hdr(xdr, OP_REMOVE); | |
3709 | if (status) | |
3710 | goto out; | |
3711 | status = decode_change_info(xdr, cinfo); | |
3712 | out: | |
3713 | return status; | |
3714 | } | |
3715 | ||
3716 | static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, | |
3717 | struct nfs4_change_info *new_cinfo) | |
3718 | { | |
3719 | int status; | |
3720 | ||
3721 | status = decode_op_hdr(xdr, OP_RENAME); | |
3722 | if (status) | |
3723 | goto out; | |
3724 | if ((status = decode_change_info(xdr, old_cinfo))) | |
3725 | goto out; | |
3726 | status = decode_change_info(xdr, new_cinfo); | |
3727 | out: | |
3728 | return status; | |
3729 | } | |
3730 | ||
3731 | static int decode_renew(struct xdr_stream *xdr) | |
3732 | { | |
3733 | return decode_op_hdr(xdr, OP_RENEW); | |
3734 | } | |
3735 | ||
56ae19f3 TM |
3736 | static int |
3737 | decode_restorefh(struct xdr_stream *xdr) | |
3738 | { | |
3739 | return decode_op_hdr(xdr, OP_RESTOREFH); | |
3740 | } | |
3741 | ||
029d105e BF |
3742 | static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, |
3743 | size_t *acl_len) | |
3744 | { | |
8687b63a | 3745 | __be32 *savep; |
029d105e BF |
3746 | uint32_t attrlen, |
3747 | bitmap[2] = {0}; | |
3748 | struct kvec *iov = req->rq_rcv_buf.head; | |
3749 | int status; | |
3750 | ||
3751 | *acl_len = 0; | |
3752 | if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) | |
3753 | goto out; | |
3754 | if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) | |
3755 | goto out; | |
3756 | if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) | |
3757 | goto out; | |
3758 | ||
3759 | if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) | |
3760 | return -EIO; | |
3761 | if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { | |
bcecff77 CL |
3762 | size_t hdrlen; |
3763 | u32 recvd; | |
029d105e BF |
3764 | |
3765 | /* We ignore &savep and don't do consistency checks on | |
3766 | * the attr length. Let userspace figure it out.... */ | |
3767 | hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; | |
3768 | recvd = req->rq_rcv_buf.len - hdrlen; | |
3769 | if (attrlen > recvd) { | |
fe82a183 | 3770 | dprintk("NFS: server cheating in getattr" |
029d105e BF |
3771 | " acl reply: attrlen %u > recvd %u\n", |
3772 | attrlen, recvd); | |
3773 | return -EINVAL; | |
3774 | } | |
c04871e6 | 3775 | xdr_read_pages(xdr, attrlen); |
029d105e | 3776 | *acl_len = attrlen; |
8c233cf9 BF |
3777 | } else |
3778 | status = -EOPNOTSUPP; | |
029d105e BF |
3779 | |
3780 | out: | |
3781 | return status; | |
3782 | } | |
3783 | ||
1da177e4 LT |
3784 | static int |
3785 | decode_savefh(struct xdr_stream *xdr) | |
3786 | { | |
3787 | return decode_op_hdr(xdr, OP_SAVEFH); | |
3788 | } | |
3789 | ||
3790 | static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) | |
3791 | { | |
8687b63a | 3792 | __be32 *p; |
1da177e4 LT |
3793 | uint32_t bmlen; |
3794 | int status; | |
3795 | ||
1da177e4 LT |
3796 | status = decode_op_hdr(xdr, OP_SETATTR); |
3797 | if (status) | |
3798 | return status; | |
3799 | READ_BUF(4); | |
3800 | READ32(bmlen); | |
3801 | READ_BUF(bmlen << 2); | |
3802 | return 0; | |
3803 | } | |
3804 | ||
adfa6f98 | 3805 | static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) |
1da177e4 | 3806 | { |
8687b63a | 3807 | __be32 *p; |
1da177e4 LT |
3808 | uint32_t opnum; |
3809 | int32_t nfserr; | |
3810 | ||
3811 | READ_BUF(8); | |
3812 | READ32(opnum); | |
3813 | if (opnum != OP_SETCLIENTID) { | |
fe82a183 | 3814 | dprintk("nfs: decode_setclientid: Server returned operation" |
6c0195a4 | 3815 | " %d\n", opnum); |
1da177e4 LT |
3816 | return -EIO; |
3817 | } | |
3818 | READ32(nfserr); | |
3819 | if (nfserr == NFS_OK) { | |
8ae20abd | 3820 | READ_BUF(8 + NFS4_VERIFIER_SIZE); |
1da177e4 | 3821 | READ64(clp->cl_clientid); |
8ae20abd | 3822 | COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); |
1da177e4 LT |
3823 | } else if (nfserr == NFSERR_CLID_INUSE) { |
3824 | uint32_t len; | |
3825 | ||
3826 | /* skip netid string */ | |
3827 | READ_BUF(4); | |
3828 | READ32(len); | |
3829 | READ_BUF(len); | |
3830 | ||
3831 | /* skip uaddr string */ | |
3832 | READ_BUF(4); | |
3833 | READ32(len); | |
3834 | READ_BUF(len); | |
3835 | return -NFSERR_CLID_INUSE; | |
3836 | } else | |
856dff3d | 3837 | return nfs4_stat_to_errno(nfserr); |
1da177e4 LT |
3838 | |
3839 | return 0; | |
3840 | } | |
3841 | ||
3842 | static int decode_setclientid_confirm(struct xdr_stream *xdr) | |
3843 | { | |
3844 | return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); | |
3845 | } | |
3846 | ||
3847 | static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) | |
3848 | { | |
8687b63a | 3849 | __be32 *p; |
1da177e4 LT |
3850 | int status; |
3851 | ||
3852 | status = decode_op_hdr(xdr, OP_WRITE); | |
3853 | if (status) | |
3854 | return status; | |
3855 | ||
3856 | READ_BUF(16); | |
3857 | READ32(res->count); | |
3858 | READ32(res->verf->committed); | |
3859 | COPYMEM(res->verf->verifier, 8); | |
3860 | return 0; | |
3861 | } | |
3862 | ||
3863 | static int decode_delegreturn(struct xdr_stream *xdr) | |
3864 | { | |
3865 | return decode_op_hdr(xdr, OP_DELEGRETURN); | |
3866 | } | |
3867 | ||
49c2559e BH |
3868 | /* |
3869 | * END OF "GENERIC" DECODE ROUTINES. | |
3870 | */ | |
3871 | ||
1da177e4 LT |
3872 | /* |
3873 | * Decode OPEN_DOWNGRADE response | |
3874 | */ | |
8687b63a | 3875 | static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 3876 | { |
05d564fe AA |
3877 | struct xdr_stream xdr; |
3878 | struct compound_hdr hdr; | |
3879 | int status; | |
3880 | ||
3881 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
3882 | status = decode_compound_hdr(&xdr, &hdr); | |
3883 | if (status) | |
3884 | goto out; | |
3885 | status = decode_putfh(&xdr); | |
3886 | if (status) | |
3887 | goto out; | |
3888 | status = decode_open_downgrade(&xdr, res); | |
516a6af6 TM |
3889 | if (status != 0) |
3890 | goto out; | |
3891 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 3892 | out: |
05d564fe | 3893 | return status; |
1da177e4 LT |
3894 | } |
3895 | ||
1da177e4 LT |
3896 | /* |
3897 | * Decode ACCESS response | |
3898 | */ | |
8687b63a | 3899 | static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) |
1da177e4 LT |
3900 | { |
3901 | struct xdr_stream xdr; | |
3902 | struct compound_hdr hdr; | |
3903 | int status; | |
6c0195a4 | 3904 | |
1da177e4 LT |
3905 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3906 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3907 | goto out; | |
76b32999 TM |
3908 | status = decode_putfh(&xdr); |
3909 | if (status != 0) | |
3910 | goto out; | |
3911 | status = decode_access(&xdr, res); | |
3912 | if (status != 0) | |
3913 | goto out; | |
3914 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
3915 | out: |
3916 | return status; | |
3917 | } | |
3918 | ||
3919 | /* | |
3920 | * Decode LOOKUP response | |
3921 | */ | |
8687b63a | 3922 | static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3923 | { |
3924 | struct xdr_stream xdr; | |
3925 | struct compound_hdr hdr; | |
3926 | int status; | |
6c0195a4 | 3927 | |
1da177e4 LT |
3928 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3929 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3930 | goto out; | |
3931 | if ((status = decode_putfh(&xdr)) != 0) | |
3932 | goto out; | |
3933 | if ((status = decode_lookup(&xdr)) != 0) | |
3934 | goto out; | |
3935 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
3936 | goto out; | |
3937 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3938 | out: | |
3939 | return status; | |
3940 | } | |
3941 | ||
3942 | /* | |
3943 | * Decode LOOKUP_ROOT response | |
3944 | */ | |
8687b63a | 3945 | static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) |
1da177e4 LT |
3946 | { |
3947 | struct xdr_stream xdr; | |
3948 | struct compound_hdr hdr; | |
3949 | int status; | |
6c0195a4 | 3950 | |
1da177e4 LT |
3951 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3952 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3953 | goto out; | |
3954 | if ((status = decode_putrootfh(&xdr)) != 0) | |
3955 | goto out; | |
3956 | if ((status = decode_getfh(&xdr, res->fh)) == 0) | |
3957 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
3958 | out: | |
3959 | return status; | |
3960 | } | |
3961 | ||
3962 | /* | |
3963 | * Decode REMOVE response | |
3964 | */ | |
4fdc17b2 | 3965 | static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) |
1da177e4 LT |
3966 | { |
3967 | struct xdr_stream xdr; | |
3968 | struct compound_hdr hdr; | |
3969 | int status; | |
6c0195a4 | 3970 | |
1da177e4 LT |
3971 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3972 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3973 | goto out; | |
16e42959 TM |
3974 | if ((status = decode_putfh(&xdr)) != 0) |
3975 | goto out; | |
3976 | if ((status = decode_remove(&xdr, &res->cinfo)) != 0) | |
3977 | goto out; | |
4fdc17b2 | 3978 | decode_getfattr(&xdr, &res->dir_attr, res->server); |
1da177e4 LT |
3979 | out: |
3980 | return status; | |
3981 | } | |
3982 | ||
3983 | /* | |
3984 | * Decode RENAME response | |
3985 | */ | |
8687b63a | 3986 | static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) |
1da177e4 LT |
3987 | { |
3988 | struct xdr_stream xdr; | |
3989 | struct compound_hdr hdr; | |
3990 | int status; | |
6c0195a4 | 3991 | |
1da177e4 LT |
3992 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
3993 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
3994 | goto out; | |
3995 | if ((status = decode_putfh(&xdr)) != 0) | |
3996 | goto out; | |
3997 | if ((status = decode_savefh(&xdr)) != 0) | |
3998 | goto out; | |
3999 | if ((status = decode_putfh(&xdr)) != 0) | |
4000 | goto out; | |
6caf2c82 TM |
4001 | if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) |
4002 | goto out; | |
4003 | /* Current FH is target directory */ | |
4004 | if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) | |
4005 | goto out; | |
4006 | if ((status = decode_restorefh(&xdr)) != 0) | |
4007 | goto out; | |
4008 | decode_getfattr(&xdr, res->old_fattr, res->server); | |
1da177e4 LT |
4009 | out: |
4010 | return status; | |
4011 | } | |
4012 | ||
4013 | /* | |
4014 | * Decode LINK response | |
4015 | */ | |
8687b63a | 4016 | static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) |
1da177e4 LT |
4017 | { |
4018 | struct xdr_stream xdr; | |
4019 | struct compound_hdr hdr; | |
4020 | int status; | |
6c0195a4 | 4021 | |
1da177e4 LT |
4022 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4023 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4024 | goto out; | |
4025 | if ((status = decode_putfh(&xdr)) != 0) | |
4026 | goto out; | |
4027 | if ((status = decode_savefh(&xdr)) != 0) | |
4028 | goto out; | |
4029 | if ((status = decode_putfh(&xdr)) != 0) | |
4030 | goto out; | |
91ba2eee TM |
4031 | if ((status = decode_link(&xdr, &res->cinfo)) != 0) |
4032 | goto out; | |
4033 | /* | |
4034 | * Note order: OP_LINK leaves the directory as the current | |
4035 | * filehandle. | |
4036 | */ | |
4037 | if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) | |
4038 | goto out; | |
4039 | if ((status = decode_restorefh(&xdr)) != 0) | |
4040 | goto out; | |
4041 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4042 | out: |
4043 | return status; | |
4044 | } | |
4045 | ||
4046 | /* | |
4047 | * Decode CREATE response | |
4048 | */ | |
8687b63a | 4049 | static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4050 | { |
4051 | struct xdr_stream xdr; | |
4052 | struct compound_hdr hdr; | |
4053 | int status; | |
6c0195a4 | 4054 | |
1da177e4 LT |
4055 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4056 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4057 | goto out; | |
4058 | if ((status = decode_putfh(&xdr)) != 0) | |
4059 | goto out; | |
56ae19f3 TM |
4060 | if ((status = decode_savefh(&xdr)) != 0) |
4061 | goto out; | |
1da177e4 LT |
4062 | if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) |
4063 | goto out; | |
4064 | if ((status = decode_getfh(&xdr, res->fh)) != 0) | |
4065 | goto out; | |
56ae19f3 TM |
4066 | if (decode_getfattr(&xdr, res->fattr, res->server) != 0) |
4067 | goto out; | |
4068 | if ((status = decode_restorefh(&xdr)) != 0) | |
4069 | goto out; | |
4070 | decode_getfattr(&xdr, res->dir_fattr, res->server); | |
1da177e4 LT |
4071 | out: |
4072 | return status; | |
4073 | } | |
4074 | ||
4075 | /* | |
4076 | * Decode SYMLINK response | |
4077 | */ | |
8687b63a | 4078 | static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) |
1da177e4 LT |
4079 | { |
4080 | return nfs4_xdr_dec_create(rqstp, p, res); | |
4081 | } | |
4082 | ||
4083 | /* | |
4084 | * Decode GETATTR response | |
4085 | */ | |
8687b63a | 4086 | static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) |
1da177e4 LT |
4087 | { |
4088 | struct xdr_stream xdr; | |
4089 | struct compound_hdr hdr; | |
4090 | int status; | |
6c0195a4 | 4091 | |
1da177e4 LT |
4092 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); |
4093 | status = decode_compound_hdr(&xdr, &hdr); | |
4094 | if (status) | |
4095 | goto out; | |
4096 | status = decode_putfh(&xdr); | |
4097 | if (status) | |
4098 | goto out; | |
4099 | status = decode_getfattr(&xdr, res->fattr, res->server); | |
4100 | out: | |
4101 | return status; | |
1da177e4 LT |
4102 | } |
4103 | ||
23ec6965 BF |
4104 | /* |
4105 | * Encode an SETACL request | |
4106 | */ | |
4107 | static int | |
8687b63a | 4108 | nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) |
23ec6965 | 4109 | { |
05d564fe AA |
4110 | struct xdr_stream xdr; |
4111 | struct compound_hdr hdr = { | |
d017931c | 4112 | .nops = 0, |
05d564fe AA |
4113 | }; |
4114 | int status; | |
4115 | ||
4116 | xdr_init_encode(&xdr, &req->rq_snd_buf, p); | |
4117 | encode_compound_hdr(&xdr, &hdr); | |
d017931c | 4118 | status = encode_putfh(&xdr, args->fh, &hdr); |
05d564fe AA |
4119 | if (status) |
4120 | goto out; | |
d017931c | 4121 | status = encode_setacl(&xdr, args, &hdr); |
23ec6965 | 4122 | out: |
d017931c | 4123 | encode_nops(&hdr); |
05d564fe | 4124 | return status; |
23ec6965 | 4125 | } |
05d564fe | 4126 | |
23ec6965 BF |
4127 | /* |
4128 | * Decode SETACL response | |
4129 | */ | |
4130 | static int | |
8687b63a | 4131 | nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) |
23ec6965 BF |
4132 | { |
4133 | struct xdr_stream xdr; | |
4134 | struct compound_hdr hdr; | |
4135 | int status; | |
4136 | ||
4137 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4138 | status = decode_compound_hdr(&xdr, &hdr); | |
4139 | if (status) | |
4140 | goto out; | |
4141 | status = decode_putfh(&xdr); | |
4142 | if (status) | |
4143 | goto out; | |
4144 | status = decode_setattr(&xdr, res); | |
4145 | out: | |
4146 | return status; | |
4147 | } | |
1da177e4 | 4148 | |
029d105e BF |
4149 | /* |
4150 | * Decode GETACL response | |
4151 | */ | |
4152 | static int | |
8687b63a | 4153 | nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) |
029d105e BF |
4154 | { |
4155 | struct xdr_stream xdr; | |
4156 | struct compound_hdr hdr; | |
4157 | int status; | |
4158 | ||
4159 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4160 | status = decode_compound_hdr(&xdr, &hdr); | |
4161 | if (status) | |
4162 | goto out; | |
4163 | status = decode_putfh(&xdr); | |
4164 | if (status) | |
4165 | goto out; | |
4166 | status = decode_getacl(&xdr, rqstp, acl_len); | |
4167 | ||
4168 | out: | |
4169 | return status; | |
4170 | } | |
4171 | ||
1da177e4 LT |
4172 | /* |
4173 | * Decode CLOSE response | |
4174 | */ | |
8687b63a | 4175 | static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) |
1da177e4 | 4176 | { |
05d564fe AA |
4177 | struct xdr_stream xdr; |
4178 | struct compound_hdr hdr; | |
4179 | int status; | |
4180 | ||
4181 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4182 | status = decode_compound_hdr(&xdr, &hdr); | |
4183 | if (status) | |
4184 | goto out; | |
4185 | status = decode_putfh(&xdr); | |
4186 | if (status) | |
4187 | goto out; | |
4188 | status = decode_close(&xdr, res); | |
516a6af6 TM |
4189 | if (status != 0) |
4190 | goto out; | |
4191 | /* | |
4192 | * Note: Server may do delete on close for this file | |
4193 | * in which case the getattr call will fail with | |
4194 | * an ESTALE error. Shouldn't be a problem, | |
4195 | * though, since fattr->valid will remain unset. | |
4196 | */ | |
4197 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 | 4198 | out: |
05d564fe | 4199 | return status; |
1da177e4 LT |
4200 | } |
4201 | ||
4202 | /* | |
4203 | * Decode OPEN response | |
4204 | */ | |
8687b63a | 4205 | static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4206 | { |
05d564fe AA |
4207 | struct xdr_stream xdr; |
4208 | struct compound_hdr hdr; | |
4209 | int status; | |
4210 | ||
4211 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4212 | status = decode_compound_hdr(&xdr, &hdr); | |
4213 | if (status) | |
4214 | goto out; | |
4215 | status = decode_putfh(&xdr); | |
4216 | if (status) | |
4217 | goto out; | |
4218 | status = decode_savefh(&xdr); | |
4219 | if (status) | |
4220 | goto out; | |
4221 | status = decode_open(&xdr, res); | |
56ae19f3 TM |
4222 | if (status) |
4223 | goto out; | |
9936781d | 4224 | if (decode_getfh(&xdr, &res->fh) != 0) |
1da177e4 | 4225 | goto out; |
56ae19f3 TM |
4226 | if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) |
4227 | goto out; | |
365c8f58 | 4228 | if (decode_restorefh(&xdr) != 0) |
56ae19f3 TM |
4229 | goto out; |
4230 | decode_getfattr(&xdr, res->dir_attr, res->server); | |
1da177e4 | 4231 | out: |
05d564fe | 4232 | return status; |
1da177e4 LT |
4233 | } |
4234 | ||
4235 | /* | |
4236 | * Decode OPEN_CONFIRM response | |
4237 | */ | |
8687b63a | 4238 | static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) |
1da177e4 | 4239 | { |
05d564fe AA |
4240 | struct xdr_stream xdr; |
4241 | struct compound_hdr hdr; | |
4242 | int status; | |
4243 | ||
4244 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4245 | status = decode_compound_hdr(&xdr, &hdr); | |
4246 | if (status) | |
4247 | goto out; | |
4248 | status = decode_putfh(&xdr); | |
4249 | if (status) | |
4250 | goto out; | |
4251 | status = decode_open_confirm(&xdr, res); | |
1da177e4 | 4252 | out: |
05d564fe | 4253 | return status; |
1da177e4 LT |
4254 | } |
4255 | ||
4256 | /* | |
4257 | * Decode OPEN response | |
4258 | */ | |
8687b63a | 4259 | static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) |
1da177e4 | 4260 | { |
05d564fe AA |
4261 | struct xdr_stream xdr; |
4262 | struct compound_hdr hdr; | |
4263 | int status; | |
4264 | ||
4265 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4266 | status = decode_compound_hdr(&xdr, &hdr); | |
4267 | if (status) | |
4268 | goto out; | |
4269 | status = decode_putfh(&xdr); | |
4270 | if (status) | |
4271 | goto out; | |
4272 | status = decode_open(&xdr, res); | |
4273 | if (status) | |
4274 | goto out; | |
864472e9 | 4275 | decode_getfattr(&xdr, res->f_attr, res->server); |
1da177e4 | 4276 | out: |
05d564fe | 4277 | return status; |
1da177e4 LT |
4278 | } |
4279 | ||
4280 | /* | |
4281 | * Decode SETATTR response | |
4282 | */ | |
8687b63a | 4283 | static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) |
1da177e4 | 4284 | { |
05d564fe AA |
4285 | struct xdr_stream xdr; |
4286 | struct compound_hdr hdr; | |
4287 | int status; | |
4288 | ||
4289 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4290 | status = decode_compound_hdr(&xdr, &hdr); | |
4291 | if (status) | |
4292 | goto out; | |
4293 | status = decode_putfh(&xdr); | |
4294 | if (status) | |
4295 | goto out; | |
4296 | status = decode_setattr(&xdr, res); | |
4297 | if (status) | |
4298 | goto out; | |
1da177e4 LT |
4299 | status = decode_getfattr(&xdr, res->fattr, res->server); |
4300 | if (status == NFS4ERR_DELAY) | |
4301 | status = 0; | |
4302 | out: | |
05d564fe | 4303 | return status; |
1da177e4 LT |
4304 | } |
4305 | ||
4306 | /* | |
4307 | * Decode LOCK response | |
4308 | */ | |
8687b63a | 4309 | static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) |
1da177e4 LT |
4310 | { |
4311 | struct xdr_stream xdr; | |
4312 | struct compound_hdr hdr; | |
4313 | int status; | |
4314 | ||
4315 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4316 | status = decode_compound_hdr(&xdr, &hdr); | |
4317 | if (status) | |
4318 | goto out; | |
4319 | status = decode_putfh(&xdr); | |
4320 | if (status) | |
4321 | goto out; | |
4322 | status = decode_lock(&xdr, res); | |
4323 | out: | |
4324 | return status; | |
4325 | } | |
4326 | ||
4327 | /* | |
4328 | * Decode LOCKT response | |
4329 | */ | |
8687b63a | 4330 | static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) |
1da177e4 LT |
4331 | { |
4332 | struct xdr_stream xdr; | |
4333 | struct compound_hdr hdr; | |
4334 | int status; | |
4335 | ||
4336 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4337 | status = decode_compound_hdr(&xdr, &hdr); | |
4338 | if (status) | |
4339 | goto out; | |
4340 | status = decode_putfh(&xdr); | |
4341 | if (status) | |
4342 | goto out; | |
4343 | status = decode_lockt(&xdr, res); | |
4344 | out: | |
4345 | return status; | |
4346 | } | |
4347 | ||
4348 | /* | |
4349 | * Decode LOCKU response | |
4350 | */ | |
8687b63a | 4351 | static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) |
1da177e4 LT |
4352 | { |
4353 | struct xdr_stream xdr; | |
4354 | struct compound_hdr hdr; | |
4355 | int status; | |
4356 | ||
4357 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4358 | status = decode_compound_hdr(&xdr, &hdr); | |
4359 | if (status) | |
4360 | goto out; | |
4361 | status = decode_putfh(&xdr); | |
4362 | if (status) | |
4363 | goto out; | |
4364 | status = decode_locku(&xdr, res); | |
4365 | out: | |
4366 | return status; | |
4367 | } | |
4368 | ||
4369 | /* | |
4370 | * Decode READLINK response | |
4371 | */ | |
8687b63a | 4372 | static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) |
1da177e4 LT |
4373 | { |
4374 | struct xdr_stream xdr; | |
4375 | struct compound_hdr hdr; | |
4376 | int status; | |
4377 | ||
4378 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4379 | status = decode_compound_hdr(&xdr, &hdr); | |
4380 | if (status) | |
4381 | goto out; | |
4382 | status = decode_putfh(&xdr); | |
4383 | if (status) | |
4384 | goto out; | |
4385 | status = decode_readlink(&xdr, rqstp); | |
4386 | out: | |
4387 | return status; | |
4388 | } | |
4389 | ||
4390 | /* | |
4391 | * Decode READDIR response | |
4392 | */ | |
8687b63a | 4393 | static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) |
1da177e4 LT |
4394 | { |
4395 | struct xdr_stream xdr; | |
4396 | struct compound_hdr hdr; | |
4397 | int status; | |
4398 | ||
4399 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4400 | status = decode_compound_hdr(&xdr, &hdr); | |
4401 | if (status) | |
4402 | goto out; | |
4403 | status = decode_putfh(&xdr); | |
4404 | if (status) | |
4405 | goto out; | |
4406 | status = decode_readdir(&xdr, rqstp, res); | |
4407 | out: | |
4408 | return status; | |
4409 | } | |
4410 | ||
4411 | /* | |
4412 | * Decode Read response | |
4413 | */ | |
8687b63a | 4414 | static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) |
1da177e4 LT |
4415 | { |
4416 | struct xdr_stream xdr; | |
4417 | struct compound_hdr hdr; | |
4418 | int status; | |
4419 | ||
4420 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4421 | status = decode_compound_hdr(&xdr, &hdr); | |
4422 | if (status) | |
4423 | goto out; | |
4424 | status = decode_putfh(&xdr); | |
4425 | if (status) | |
4426 | goto out; | |
4427 | status = decode_read(&xdr, rqstp, res); | |
4428 | if (!status) | |
4429 | status = res->count; | |
4430 | out: | |
4431 | return status; | |
4432 | } | |
4433 | ||
4434 | /* | |
4435 | * Decode WRITE response | |
4436 | */ | |
8687b63a | 4437 | static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4438 | { |
4439 | struct xdr_stream xdr; | |
4440 | struct compound_hdr hdr; | |
4441 | int status; | |
4442 | ||
4443 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4444 | status = decode_compound_hdr(&xdr, &hdr); | |
4445 | if (status) | |
4446 | goto out; | |
4447 | status = decode_putfh(&xdr); | |
4448 | if (status) | |
4449 | goto out; | |
4450 | status = decode_write(&xdr, res); | |
4f9838c7 TM |
4451 | if (status) |
4452 | goto out; | |
4453 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4454 | if (!status) |
4455 | status = res->count; | |
4456 | out: | |
4457 | return status; | |
4458 | } | |
4459 | ||
4460 | /* | |
4461 | * Decode COMMIT response | |
4462 | */ | |
8687b63a | 4463 | static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) |
1da177e4 LT |
4464 | { |
4465 | struct xdr_stream xdr; | |
4466 | struct compound_hdr hdr; | |
4467 | int status; | |
4468 | ||
4469 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4470 | status = decode_compound_hdr(&xdr, &hdr); | |
4471 | if (status) | |
4472 | goto out; | |
4473 | status = decode_putfh(&xdr); | |
4474 | if (status) | |
4475 | goto out; | |
4476 | status = decode_commit(&xdr, res); | |
4f9838c7 TM |
4477 | if (status) |
4478 | goto out; | |
4479 | decode_getfattr(&xdr, res->fattr, res->server); | |
1da177e4 LT |
4480 | out: |
4481 | return status; | |
4482 | } | |
4483 | ||
4484 | /* | |
4485 | * FSINFO request | |
4486 | */ | |
8687b63a | 4487 | static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4488 | { |
4489 | struct xdr_stream xdr; | |
4490 | struct compound_hdr hdr; | |
4491 | int status; | |
4492 | ||
4493 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4494 | status = decode_compound_hdr(&xdr, &hdr); | |
4495 | if (!status) | |
4496 | status = decode_putfh(&xdr); | |
4497 | if (!status) | |
4498 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4499 | return status; |
4500 | } | |
4501 | ||
4502 | /* | |
4503 | * PATHCONF request | |
4504 | */ | |
8687b63a | 4505 | static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) |
1da177e4 LT |
4506 | { |
4507 | struct xdr_stream xdr; | |
4508 | struct compound_hdr hdr; | |
4509 | int status; | |
4510 | ||
4511 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4512 | status = decode_compound_hdr(&xdr, &hdr); | |
4513 | if (!status) | |
4514 | status = decode_putfh(&xdr); | |
4515 | if (!status) | |
4516 | status = decode_pathconf(&xdr, pathconf); | |
4517 | return status; | |
4518 | } | |
4519 | ||
4520 | /* | |
4521 | * STATFS request | |
4522 | */ | |
8687b63a | 4523 | static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) |
1da177e4 LT |
4524 | { |
4525 | struct xdr_stream xdr; | |
4526 | struct compound_hdr hdr; | |
4527 | int status; | |
4528 | ||
4529 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4530 | status = decode_compound_hdr(&xdr, &hdr); | |
4531 | if (!status) | |
4532 | status = decode_putfh(&xdr); | |
4533 | if (!status) | |
4534 | status = decode_statfs(&xdr, fsstat); | |
4535 | return status; | |
4536 | } | |
4537 | ||
4538 | /* | |
4539 | * GETATTR_BITMAP request | |
4540 | */ | |
8687b63a | 4541 | static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) |
1da177e4 LT |
4542 | { |
4543 | struct xdr_stream xdr; | |
4544 | struct compound_hdr hdr; | |
4545 | int status; | |
4546 | ||
4547 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4548 | if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) | |
4549 | goto out; | |
4550 | if ((status = decode_putfh(&xdr)) != 0) | |
4551 | goto out; | |
4552 | status = decode_server_caps(&xdr, res); | |
4553 | out: | |
4554 | return status; | |
4555 | } | |
4556 | ||
4557 | /* | |
4558 | * Decode RENEW response | |
4559 | */ | |
8687b63a | 4560 | static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) |
1da177e4 LT |
4561 | { |
4562 | struct xdr_stream xdr; | |
4563 | struct compound_hdr hdr; | |
4564 | int status; | |
4565 | ||
4566 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4567 | status = decode_compound_hdr(&xdr, &hdr); | |
4568 | if (!status) | |
4569 | status = decode_renew(&xdr); | |
4570 | return status; | |
4571 | } | |
4572 | ||
4573 | /* | |
4574 | * a SETCLIENTID request | |
4575 | */ | |
8687b63a | 4576 | static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, |
adfa6f98 | 4577 | struct nfs_client *clp) |
1da177e4 LT |
4578 | { |
4579 | struct xdr_stream xdr; | |
4580 | struct compound_hdr hdr; | |
4581 | int status; | |
4582 | ||
4583 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4584 | status = decode_compound_hdr(&xdr, &hdr); | |
4585 | if (!status) | |
4586 | status = decode_setclientid(&xdr, clp); | |
1da177e4 LT |
4587 | return status; |
4588 | } | |
4589 | ||
4590 | /* | |
4591 | * a SETCLIENTID_CONFIRM request | |
4592 | */ | |
8687b63a | 4593 | static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) |
1da177e4 LT |
4594 | { |
4595 | struct xdr_stream xdr; | |
4596 | struct compound_hdr hdr; | |
4597 | int status; | |
4598 | ||
4599 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4600 | status = decode_compound_hdr(&xdr, &hdr); | |
4601 | if (!status) | |
4602 | status = decode_setclientid_confirm(&xdr); | |
4603 | if (!status) | |
4604 | status = decode_putrootfh(&xdr); | |
4605 | if (!status) | |
4606 | status = decode_fsinfo(&xdr, fsinfo); | |
1da177e4 LT |
4607 | return status; |
4608 | } | |
4609 | ||
4610 | /* | |
4611 | * DELEGRETURN request | |
4612 | */ | |
8687b63a | 4613 | static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) |
1da177e4 LT |
4614 | { |
4615 | struct xdr_stream xdr; | |
4616 | struct compound_hdr hdr; | |
4617 | int status; | |
4618 | ||
4619 | xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); | |
4620 | status = decode_compound_hdr(&xdr, &hdr); | |
fa178f29 TM |
4621 | if (status != 0) |
4622 | goto out; | |
4623 | status = decode_putfh(&xdr); | |
4624 | if (status != 0) | |
4625 | goto out; | |
4626 | status = decode_delegreturn(&xdr); | |
4627 | decode_getfattr(&xdr, res->fattr, res->server); | |
4628 | out: | |
1da177e4 LT |
4629 | return status; |
4630 | } | |
4631 | ||
683b57b4 TM |
4632 | /* |
4633 | * FS_LOCATIONS request | |
4634 | */ | |
8687b63a | 4635 | static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) |
683b57b4 TM |
4636 | { |
4637 | struct xdr_stream xdr; | |
4638 | struct compound_hdr hdr; | |
4639 | int status; | |
4640 | ||
4641 | xdr_init_decode(&xdr, &req->rq_rcv_buf, p); | |
4642 | status = decode_compound_hdr(&xdr, &hdr); | |
4643 | if (status != 0) | |
4644 | goto out; | |
4645 | if ((status = decode_putfh(&xdr)) != 0) | |
4646 | goto out; | |
4647 | if ((status = decode_lookup(&xdr)) != 0) | |
4648 | goto out; | |
4649 | xdr_enter_page(&xdr, PAGE_SIZE); | |
4650 | status = decode_getfattr(&xdr, &res->fattr, res->server); | |
4651 | out: | |
4652 | return status; | |
4653 | } | |
4654 | ||
0dbb4c67 | 4655 | __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) |
1da177e4 LT |
4656 | { |
4657 | uint32_t bitmap[2] = {0}; | |
4658 | uint32_t len; | |
4659 | ||
4660 | if (!*p++) { | |
4661 | if (!*p) | |
4662 | return ERR_PTR(-EAGAIN); | |
4663 | entry->eof = 1; | |
4664 | return ERR_PTR(-EBADCOOKIE); | |
4665 | } | |
4666 | ||
4667 | entry->prev_cookie = entry->cookie; | |
4668 | p = xdr_decode_hyper(p, &entry->cookie); | |
4669 | entry->len = ntohl(*p++); | |
4670 | entry->name = (const char *) p; | |
4671 | p += XDR_QUADLEN(entry->len); | |
4672 | ||
4673 | /* | |
4674 | * In case the server doesn't return an inode number, | |
4675 | * we fake one here. (We don't use inode number 0, | |
4676 | * since glibc seems to choke on it...) | |
4677 | */ | |
4678 | entry->ino = 1; | |
4679 | ||
4680 | len = ntohl(*p++); /* bitmap length */ | |
4681 | if (len-- > 0) { | |
4682 | bitmap[0] = ntohl(*p++); | |
4683 | if (len-- > 0) { | |
4684 | bitmap[1] = ntohl(*p++); | |
4685 | p += len; | |
4686 | } | |
4687 | } | |
4688 | len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ | |
4689 | if (len > 0) { | |
97d312d0 MN |
4690 | if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { |
4691 | bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; | |
4692 | /* Ignore the return value of rdattr_error for now */ | |
4693 | p++; | |
4694 | len--; | |
4695 | } | |
1da177e4 LT |
4696 | if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) |
4697 | xdr_decode_hyper(p, &entry->ino); | |
4698 | else if (bitmap[0] == FATTR4_WORD0_FILEID) | |
4699 | xdr_decode_hyper(p, &entry->ino); | |
4700 | p += len; | |
4701 | } | |
4702 | ||
4703 | entry->eof = !p[0] && p[1]; | |
4704 | return p; | |
4705 | } | |
4706 | ||
4707 | /* | |
4708 | * We need to translate between nfs status return values and | |
4709 | * the local errno values which may not be the same. | |
4710 | */ | |
4711 | static struct { | |
4712 | int stat; | |
4713 | int errno; | |
4714 | } nfs_errtbl[] = { | |
4715 | { NFS4_OK, 0 }, | |
856dff3d BH |
4716 | { NFS4ERR_PERM, -EPERM }, |
4717 | { NFS4ERR_NOENT, -ENOENT }, | |
4718 | { NFS4ERR_IO, -errno_NFSERR_IO}, | |
4719 | { NFS4ERR_NXIO, -ENXIO }, | |
4720 | { NFS4ERR_ACCESS, -EACCES }, | |
4721 | { NFS4ERR_EXIST, -EEXIST }, | |
4722 | { NFS4ERR_XDEV, -EXDEV }, | |
4723 | { NFS4ERR_NOTDIR, -ENOTDIR }, | |
4724 | { NFS4ERR_ISDIR, -EISDIR }, | |
4725 | { NFS4ERR_INVAL, -EINVAL }, | |
4726 | { NFS4ERR_FBIG, -EFBIG }, | |
4727 | { NFS4ERR_NOSPC, -ENOSPC }, | |
4728 | { NFS4ERR_ROFS, -EROFS }, | |
4729 | { NFS4ERR_MLINK, -EMLINK }, | |
4730 | { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, | |
4731 | { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, | |
4732 | { NFS4ERR_DQUOT, -EDQUOT }, | |
4733 | { NFS4ERR_STALE, -ESTALE }, | |
4734 | { NFS4ERR_BADHANDLE, -EBADHANDLE }, | |
4735 | { NFS4ERR_BADOWNER, -EINVAL }, | |
4736 | { NFS4ERR_BADNAME, -EINVAL }, | |
4737 | { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, | |
4738 | { NFS4ERR_NOTSUPP, -ENOTSUPP }, | |
4739 | { NFS4ERR_TOOSMALL, -ETOOSMALL }, | |
4740 | { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, | |
4741 | { NFS4ERR_BADTYPE, -EBADTYPE }, | |
4742 | { NFS4ERR_LOCKED, -EAGAIN }, | |
4743 | { NFS4ERR_RESOURCE, -EREMOTEIO }, | |
4744 | { NFS4ERR_SYMLINK, -ELOOP }, | |
4745 | { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, | |
4746 | { NFS4ERR_DEADLOCK, -EDEADLK }, | |
4747 | { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs | |
1da177e4 LT |
4748 | * to be handled by a |
4749 | * middle-layer. | |
4750 | */ | |
856dff3d | 4751 | { -1, -EIO } |
1da177e4 LT |
4752 | }; |
4753 | ||
4754 | /* | |
4755 | * Convert an NFS error code to a local one. | |
4756 | * This one is used jointly by NFSv2 and NFSv3. | |
4757 | */ | |
4758 | static int | |
0a8ea437 | 4759 | nfs4_stat_to_errno(int stat) |
1da177e4 LT |
4760 | { |
4761 | int i; | |
4762 | for (i = 0; nfs_errtbl[i].stat != -1; i++) { | |
4763 | if (nfs_errtbl[i].stat == stat) | |
4764 | return nfs_errtbl[i].errno; | |
4765 | } | |
4766 | if (stat <= 10000 || stat > 10100) { | |
4767 | /* The server is looney tunes. */ | |
856dff3d | 4768 | return -ESERVERFAULT; |
1da177e4 LT |
4769 | } |
4770 | /* If we cannot translate the error, the recovery routines should | |
4771 | * handle it. | |
4772 | * Note: remaining NFSv4 error codes have values > 10000, so should | |
4773 | * not conflict with native Linux error codes. | |
4774 | */ | |
856dff3d | 4775 | return -stat; |
1da177e4 LT |
4776 | } |
4777 | ||
1da177e4 LT |
4778 | #define PROC(proc, argtype, restype) \ |
4779 | [NFSPROC4_CLNT_##proc] = { \ | |
4780 | .p_proc = NFSPROC4_COMPOUND, \ | |
4781 | .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ | |
4782 | .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ | |
2bea90d4 CL |
4783 | .p_arglen = NFS4_##argtype##_sz, \ |
4784 | .p_replen = NFS4_##restype##_sz, \ | |
cc0175c1 CL |
4785 | .p_statidx = NFSPROC4_CLNT_##proc, \ |
4786 | .p_name = #proc, \ | |
05d564fe | 4787 | } |
1da177e4 LT |
4788 | |
4789 | struct rpc_procinfo nfs4_procedures[] = { | |
4790 | PROC(READ, enc_read, dec_read), | |
4791 | PROC(WRITE, enc_write, dec_write), | |
4792 | PROC(COMMIT, enc_commit, dec_commit), | |
4793 | PROC(OPEN, enc_open, dec_open), | |
4794 | PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), | |
4795 | PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), | |
4796 | PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), | |
4797 | PROC(CLOSE, enc_close, dec_close), | |
4798 | PROC(SETATTR, enc_setattr, dec_setattr), | |
4799 | PROC(FSINFO, enc_fsinfo, dec_fsinfo), | |
4800 | PROC(RENEW, enc_renew, dec_renew), | |
4801 | PROC(SETCLIENTID, enc_setclientid, dec_setclientid), | |
4802 | PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), | |
4803 | PROC(LOCK, enc_lock, dec_lock), | |
4804 | PROC(LOCKT, enc_lockt, dec_lockt), | |
4805 | PROC(LOCKU, enc_locku, dec_locku), | |
4806 | PROC(ACCESS, enc_access, dec_access), | |
4807 | PROC(GETATTR, enc_getattr, dec_getattr), | |
4808 | PROC(LOOKUP, enc_lookup, dec_lookup), | |
4809 | PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), | |
4810 | PROC(REMOVE, enc_remove, dec_remove), | |
4811 | PROC(RENAME, enc_rename, dec_rename), | |
4812 | PROC(LINK, enc_link, dec_link), | |
4813 | PROC(SYMLINK, enc_symlink, dec_symlink), | |
4814 | PROC(CREATE, enc_create, dec_create), | |
4815 | PROC(PATHCONF, enc_pathconf, dec_pathconf), | |
4816 | PROC(STATFS, enc_statfs, dec_statfs), | |
4817 | PROC(READLINK, enc_readlink, dec_readlink), | |
4818 | PROC(READDIR, enc_readdir, dec_readdir), | |
4819 | PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), | |
4820 | PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), | |
029d105e | 4821 | PROC(GETACL, enc_getacl, dec_getacl), |
23ec6965 | 4822 | PROC(SETACL, enc_setacl, dec_setacl), |
683b57b4 | 4823 | PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), |
1da177e4 LT |
4824 | }; |
4825 | ||
4826 | struct rpc_version nfs_version4 = { | |
4827 | .number = 4, | |
e8c96f8c | 4828 | .nrprocs = ARRAY_SIZE(nfs4_procedures), |
1da177e4 LT |
4829 | .procs = nfs4_procedures |
4830 | }; | |
4831 | ||
4832 | /* | |
4833 | * Local variables: | |
4834 | * c-basic-offset: 8 | |
4835 | * End: | |
4836 | */ |