Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Server-side procedures for NFSv4. |
3 | * | |
4 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Kendrick Smith <kmsmith@umich.edu> | |
8 | * Andy Adamson <andros@umich.edu> | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or without | |
11 | * modification, are permitted provided that the following conditions | |
12 | * are met: | |
13 | * | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions and the following disclaimer. | |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in the | |
18 | * documentation and/or other materials provided with the distribution. | |
19 | * 3. Neither the name of the University nor the names of its | |
20 | * contributors may be used to endorse or promote products derived | |
21 | * from this software without specific prior written permission. | |
22 | * | |
23 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
24 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
25 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
26 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
30 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
32 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
33 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
1da177e4 | 34 | */ |
7e06b7f9 | 35 | #include <linux/file.h> |
5a0e3ad6 | 36 | #include <linux/slab.h> |
1da177e4 | 37 | |
58e7b33a | 38 | #include "idmap.h" |
9a74af21 BH |
39 | #include "cache.h" |
40 | #include "xdr4.h" | |
0a3adade | 41 | #include "vfs.h" |
1da177e4 LT |
42 | |
43 | #define NFSDDBG_FACILITY NFSDDBG_PROC | |
44 | ||
3c8e0316 YZ |
45 | static u32 nfsd_attrmask[] = { |
46 | NFSD_WRITEABLE_ATTRS_WORD0, | |
47 | NFSD_WRITEABLE_ATTRS_WORD1, | |
48 | NFSD_WRITEABLE_ATTRS_WORD2 | |
49 | }; | |
50 | ||
51 | static u32 nfsd41_ex_attrmask[] = { | |
52 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
53 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
54 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
55 | }; | |
56 | ||
57 | static __be32 | |
58 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
59 | u32 *bmval, u32 *writable) | |
60 | { | |
61 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
3c8e0316 YZ |
62 | |
63 | /* | |
64 | * Check about attributes are supported by the NFSv4 server or not. | |
65 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. | |
66 | */ | |
67 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || | |
68 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || | |
69 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) | |
70 | return nfserr_attrnotsupp; | |
71 | ||
72 | /* | |
a06b1261 | 73 | * Check FATTR4_WORD0_ACL can be supported |
3c8e0316 YZ |
74 | * in current environment or not. |
75 | */ | |
76 | if (bmval[0] & FATTR4_WORD0_ACL) { | |
77 | if (!IS_POSIXACL(dentry->d_inode)) | |
78 | return nfserr_attrnotsupp; | |
79 | } | |
3c8e0316 YZ |
80 | |
81 | /* | |
82 | * According to spec, read-only attributes return ERR_INVAL. | |
83 | */ | |
84 | if (writable) { | |
85 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || | |
86 | (bmval[2] & ~writable[2])) | |
87 | return nfserr_inval; | |
88 | } | |
89 | ||
90 | return nfs_ok; | |
91 | } | |
92 | ||
93 | static __be32 | |
94 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
95 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
96 | { | |
97 | __be32 status = nfs_ok; | |
98 | ||
99 | if (open->op_create == NFS4_OPEN_CREATE) { | |
100 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
101 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
102 | status = check_attr_support(rqstp, cstate, | |
103 | open->op_bmval, nfsd_attrmask); | |
104 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
105 | status = check_attr_support(rqstp, cstate, | |
106 | open->op_bmval, nfsd41_ex_attrmask); | |
107 | } | |
108 | ||
109 | return status; | |
110 | } | |
111 | ||
9208faf2 YZ |
112 | static int |
113 | is_create_with_attrs(struct nfsd4_open *open) | |
114 | { | |
115 | return open->op_create == NFS4_OPEN_CREATE | |
116 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
117 | || open->op_createmode == NFS4_CREATE_GUARDED | |
118 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
119 | } | |
120 | ||
121 | /* | |
122 | * if error occurs when setting the acl, just clear the acl bit | |
123 | * in the returned attr bitmap. | |
124 | */ | |
125 | static void | |
126 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
127 | struct nfs4_acl *acl, u32 *bmval) | |
128 | { | |
129 | __be32 status; | |
130 | ||
131 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
132 | if (status) | |
133 | /* | |
134 | * We should probably fail the whole open at this point, | |
135 | * but we've already created the file, so it's too late; | |
136 | * So this seems the least of evils: | |
137 | */ | |
138 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
139 | } | |
140 | ||
1da177e4 LT |
141 | static inline void |
142 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
143 | { | |
144 | fh_put(dst); | |
145 | dget(src->fh_dentry); | |
146 | if (src->fh_export) | |
147 | cache_get(&src->fh_export->h); | |
148 | *dst = *src; | |
149 | } | |
150 | ||
b37ad28b | 151 | static __be32 |
dc730e17 | 152 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 153 | { |
b37ad28b | 154 | __be32 status; |
1da177e4 LT |
155 | |
156 | if (open->op_truncate && | |
157 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
158 | return nfserr_inval; | |
159 | ||
a043226b BF |
160 | accmode |= NFSD_MAY_READ_IF_EXEC; |
161 | ||
1da177e4 | 162 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 163 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 164 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 165 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 166 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 167 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
168 | |
169 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
170 | ||
171 | return status; | |
172 | } | |
173 | ||
aadab6c6 BF |
174 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
175 | { | |
176 | umode_t mode = fh->fh_dentry->d_inode->i_mode; | |
177 | ||
178 | if (S_ISREG(mode)) | |
179 | return nfs_ok; | |
180 | if (S_ISDIR(mode)) | |
181 | return nfserr_isdir; | |
182 | /* | |
183 | * Using err_symlink as our catch-all case may look odd; but | |
184 | * there's no other obvious error for this case in 4.0, and we | |
185 | * happen to know that it will cause the linux v4 client to do | |
186 | * the right thing on attempts to open something other than a | |
187 | * regular file. | |
188 | */ | |
189 | return nfserr_symlink; | |
190 | } | |
191 | ||
b37ad28b | 192 | static __be32 |
1da177e4 LT |
193 | do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
194 | { | |
195 | struct svc_fh resfh; | |
b37ad28b | 196 | __be32 status; |
81ac95c5 | 197 | int created = 0; |
1da177e4 LT |
198 | |
199 | fh_init(&resfh, NFS4_FHSIZE); | |
200 | open->op_truncate = 0; | |
201 | ||
202 | if (open->op_create) { | |
79fb54ab BH |
203 | /* FIXME: check session persistence and pnfs flags. |
204 | * The nfsv4.1 spec requires the following semantics: | |
205 | * | |
206 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
207 | * Reply Cache | server | | | |
208 | * -------------+--------+-----------------+-------------------- | |
209 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
210 | * | | | (SHOULD) | |
211 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
212 | * | | | (SHOULD NOT) | |
213 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
214 | * yes | no | GUARDED4 | GUARDED4 | |
215 | * yes | yes | GUARDED4 | GUARDED4 | |
216 | */ | |
217 | ||
1da177e4 LT |
218 | /* |
219 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 220 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 221 | */ |
ac6721a1 | 222 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 LT |
223 | open->op_fname.len, &open->op_iattr, |
224 | &resfh, open->op_createmode, | |
749997e5 JL |
225 | (u32 *)open->op_verf.data, |
226 | &open->op_truncate, &created); | |
227 | ||
99f88726 BF |
228 | /* |
229 | * Following rfc 3530 14.2.16, use the returned bitmask | |
230 | * to indicate which attributes we used to store the | |
231 | * verifier: | |
749997e5 JL |
232 | */ |
233 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) | |
99f88726 | 234 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
749997e5 | 235 | FATTR4_WORD1_TIME_MODIFY); |
af85852d | 236 | } else { |
1da177e4 LT |
237 | status = nfsd_lookup(rqstp, current_fh, |
238 | open->op_fname.data, open->op_fname.len, &resfh); | |
239 | fh_unlock(current_fh); | |
aadab6c6 BF |
240 | if (status) |
241 | goto out; | |
242 | status = nfsd_check_obj_isreg(&resfh); | |
1da177e4 | 243 | } |
af85852d BF |
244 | if (status) |
245 | goto out; | |
1da177e4 | 246 | |
9208faf2 YZ |
247 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
248 | do_set_nfs4_acl(rqstp, &resfh, open->op_acl, open->op_bmval); | |
249 | ||
af85852d | 250 | set_change_info(&open->op_cinfo, current_fh); |
13024b7b | 251 | fh_dup2(current_fh, &resfh); |
1da177e4 | 252 | |
af85852d | 253 | /* set reply cache */ |
fe0750e5 | 254 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 255 | &resfh.fh_handle); |
81ac95c5 | 256 | if (!created) |
8837abca MS |
257 | status = do_open_permission(rqstp, current_fh, open, |
258 | NFSD_MAY_NOP); | |
1da177e4 | 259 | |
af85852d | 260 | out: |
1da177e4 LT |
261 | fh_put(&resfh); |
262 | return status; | |
263 | } | |
264 | ||
b37ad28b | 265 | static __be32 |
1da177e4 LT |
266 | do_open_fhandle(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open) |
267 | { | |
b37ad28b | 268 | __be32 status; |
1da177e4 LT |
269 | |
270 | /* Only reclaims from previously confirmed clients are valid */ | |
271 | if ((status = nfs4_check_open_reclaim(&open->op_clientid))) | |
272 | return status; | |
273 | ||
274 | /* We don't know the target directory, and therefore can not | |
275 | * set the change info | |
276 | */ | |
277 | ||
278 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
279 | ||
280 | /* set replay cache */ | |
fe0750e5 | 281 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, |
a4773c08 | 282 | ¤t_fh->fh_handle); |
1da177e4 LT |
283 | |
284 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
285 | (open->op_iattr.ia_size == 0); | |
286 | ||
8837abca MS |
287 | status = do_open_permission(rqstp, current_fh, open, |
288 | NFSD_MAY_OWNER_OVERRIDE); | |
1da177e4 LT |
289 | |
290 | return status; | |
291 | } | |
292 | ||
60adfc50 AA |
293 | static void |
294 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
295 | { | |
296 | struct nfsd4_sessionid *sid = | |
297 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
298 | ||
299 | clid->cl_boot = sid->clientid.cl_boot; | |
300 | clid->cl_id = sid->clientid.cl_id; | |
301 | } | |
1da177e4 | 302 | |
7191155b | 303 | static __be32 |
ca364317 | 304 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 305 | struct nfsd4_open *open) |
1da177e4 | 306 | { |
b37ad28b | 307 | __be32 status; |
6668958f AA |
308 | struct nfsd4_compoundres *resp; |
309 | ||
fe0750e5 | 310 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 311 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 312 | open->op_openowner); |
1da177e4 | 313 | |
1da177e4 LT |
314 | /* This check required by spec. */ |
315 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
316 | return nfserr_inval; | |
317 | ||
ab1350b2 MJ |
318 | /* |
319 | * RFC5661 18.51.3 | |
320 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
321 | */ | |
322 | if (nfsd4_has_session(cstate) && | |
323 | !cstate->session->se_client->cl_firststate && | |
324 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) | |
325 | return nfserr_grace; | |
326 | ||
60adfc50 AA |
327 | if (nfsd4_has_session(cstate)) |
328 | copy_clientid(&open->op_clientid, cstate->session); | |
329 | ||
1da177e4 LT |
330 | nfs4_lock_state(); |
331 | ||
332 | /* check seqid for replay. set nfs4_owner */ | |
6668958f AA |
333 | resp = rqstp->rq_resp; |
334 | status = nfsd4_process_open1(&resp->cstate, open); | |
a90b061c | 335 | if (status == nfserr_replay_me) { |
fe0750e5 | 336 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 337 | fh_put(&cstate->current_fh); |
a4773c08 BF |
338 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
339 | &rp->rp_openfh); | |
8837abca | 340 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
341 | if (status) |
342 | dprintk("nfsd4_open: replay failed" | |
343 | " restoring previous filehandle\n"); | |
344 | else | |
a90b061c | 345 | status = nfserr_replay_me; |
1da177e4 LT |
346 | } |
347 | if (status) | |
348 | goto out; | |
fb553c0f | 349 | |
3c8e0316 YZ |
350 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
351 | if (status) | |
352 | goto out; | |
353 | ||
fb553c0f BF |
354 | /* Openowner is now set, so sequence id will get bumped. Now we need |
355 | * these checks before we do any creates: */ | |
cbd0d51a | 356 | status = nfserr_grace; |
af558e33 | 357 | if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
358 | goto out; |
359 | status = nfserr_no_grace; | |
af558e33 | 360 | if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 361 | goto out; |
fb553c0f | 362 | |
1da177e4 | 363 | switch (open->op_claim_type) { |
0dd3c192 | 364 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 LT |
365 | case NFS4_OPEN_CLAIM_NULL: |
366 | /* | |
367 | * (1) set CURRENT_FH to the file being opened, | |
368 | * creating it if necessary, (2) set open->op_cinfo, | |
369 | * (3) set open->op_truncate if the file is to be | |
370 | * truncated after opening, (4) do permission checking. | |
371 | */ | |
ca364317 BF |
372 | status = do_open_lookup(rqstp, &cstate->current_fh, |
373 | open); | |
1da177e4 LT |
374 | if (status) |
375 | goto out; | |
376 | break; | |
377 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
dad1c067 | 378 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
1da177e4 LT |
379 | /* |
380 | * The CURRENT_FH is already set to the file being | |
381 | * opened. (1) set open->op_cinfo, (2) set | |
382 | * open->op_truncate if the file is to be truncated | |
383 | * after opening, (3) do permission checking. | |
384 | */ | |
ca364317 BF |
385 | status = do_open_fhandle(rqstp, &cstate->current_fh, |
386 | open); | |
1da177e4 LT |
387 | if (status) |
388 | goto out; | |
389 | break; | |
1da177e4 | 390 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
dad1c067 | 391 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
2fdada03 | 392 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
393 | open->op_claim_type); |
394 | status = nfserr_notsupp; | |
395 | goto out; | |
396 | default: | |
2fdada03 | 397 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
398 | open->op_claim_type); |
399 | status = nfserr_inval; | |
400 | goto out; | |
401 | } | |
402 | /* | |
403 | * nfsd4_process_open2() does the actual opening of the file. If | |
404 | * successful, it (1) truncates the file if open->op_truncate was | |
405 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
406 | */ | |
ca364317 | 407 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
1da177e4 | 408 | out: |
fe0750e5 BF |
409 | if (open->op_openowner) |
410 | cstate->replay_owner = &open->op_openowner->oo_owner; | |
7c13f344 | 411 | else |
5ec094c1 | 412 | nfs4_unlock_state(); |
1da177e4 LT |
413 | return status; |
414 | } | |
415 | ||
416 | /* | |
417 | * filehandle-manipulating ops. | |
418 | */ | |
7191155b | 419 | static __be32 |
b591480b BF |
420 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
421 | struct svc_fh **getfh) | |
1da177e4 | 422 | { |
ca364317 | 423 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
424 | return nfserr_nofilehandle; |
425 | ||
ca364317 | 426 | *getfh = &cstate->current_fh; |
1da177e4 LT |
427 | return nfs_ok; |
428 | } | |
429 | ||
7191155b | 430 | static __be32 |
ca364317 BF |
431 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
432 | struct nfsd4_putfh *putfh) | |
1da177e4 | 433 | { |
ca364317 BF |
434 | fh_put(&cstate->current_fh); |
435 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
436 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
437 | putfh->pf_fhlen); | |
68d93184 | 438 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
439 | } |
440 | ||
7191155b | 441 | static __be32 |
b591480b BF |
442 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
443 | void *arg) | |
1da177e4 | 444 | { |
b37ad28b | 445 | __be32 status; |
1da177e4 | 446 | |
ca364317 | 447 | fh_put(&cstate->current_fh); |
df547efb | 448 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
449 | return status; |
450 | } | |
451 | ||
7191155b | 452 | static __be32 |
b591480b BF |
453 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
454 | void *arg) | |
1da177e4 | 455 | { |
ca364317 | 456 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
457 | return nfserr_restorefh; |
458 | ||
ca364317 | 459 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
1da177e4 LT |
460 | return nfs_ok; |
461 | } | |
462 | ||
7191155b | 463 | static __be32 |
b591480b BF |
464 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
465 | void *arg) | |
1da177e4 | 466 | { |
ca364317 | 467 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
468 | return nfserr_nofilehandle; |
469 | ||
ca364317 | 470 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
1da177e4 LT |
471 | return nfs_ok; |
472 | } | |
473 | ||
474 | /* | |
475 | * misc nfsv4 ops | |
476 | */ | |
7191155b | 477 | static __be32 |
ca364317 BF |
478 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
479 | struct nfsd4_access *access) | |
1da177e4 LT |
480 | { |
481 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
482 | return nfserr_inval; | |
483 | ||
484 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
485 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
486 | &access->ac_supported); | |
1da177e4 LT |
487 | } |
488 | ||
7191155b | 489 | static __be32 |
ca364317 BF |
490 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
491 | struct nfsd4_commit *commit) | |
1da177e4 | 492 | { |
1da177e4 LT |
493 | u32 *p = (u32 *)commit->co_verf.data; |
494 | *p++ = nfssvc_boot.tv_sec; | |
495 | *p++ = nfssvc_boot.tv_usec; | |
496 | ||
75c096f7 | 497 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 498 | commit->co_count); |
1da177e4 LT |
499 | } |
500 | ||
b37ad28b | 501 | static __be32 |
ca364317 BF |
502 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
503 | struct nfsd4_create *create) | |
1da177e4 LT |
504 | { |
505 | struct svc_fh resfh; | |
b37ad28b | 506 | __be32 status; |
1da177e4 LT |
507 | dev_t rdev; |
508 | ||
509 | fh_init(&resfh, NFS4_FHSIZE); | |
510 | ||
8837abca MS |
511 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
512 | NFSD_MAY_CREATE); | |
1da177e4 LT |
513 | if (status) |
514 | return status; | |
515 | ||
3c8e0316 YZ |
516 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
517 | nfsd_attrmask); | |
518 | if (status) | |
519 | return status; | |
520 | ||
1da177e4 LT |
521 | switch (create->cr_type) { |
522 | case NF4LNK: | |
523 | /* ugh! we have to null-terminate the linktext, or | |
524 | * vfs_symlink() will choke. it is always safe to | |
525 | * null-terminate by brute force, since at worst we | |
526 | * will overwrite the first byte of the create namelen | |
527 | * in the XDR buffer, which has already been extracted | |
528 | * during XDR decode. | |
529 | */ | |
530 | create->cr_linkname[create->cr_linklen] = 0; | |
531 | ||
ca364317 BF |
532 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
533 | create->cr_name, create->cr_namelen, | |
534 | create->cr_linkname, create->cr_linklen, | |
535 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
536 | break; |
537 | ||
538 | case NF4BLK: | |
539 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
540 | if (MAJOR(rdev) != create->cr_specdata1 || | |
541 | MINOR(rdev) != create->cr_specdata2) | |
542 | return nfserr_inval; | |
ca364317 BF |
543 | status = nfsd_create(rqstp, &cstate->current_fh, |
544 | create->cr_name, create->cr_namelen, | |
545 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
546 | break; |
547 | ||
548 | case NF4CHR: | |
549 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
550 | if (MAJOR(rdev) != create->cr_specdata1 || | |
551 | MINOR(rdev) != create->cr_specdata2) | |
552 | return nfserr_inval; | |
ca364317 BF |
553 | status = nfsd_create(rqstp, &cstate->current_fh, |
554 | create->cr_name, create->cr_namelen, | |
555 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
556 | break; |
557 | ||
558 | case NF4SOCK: | |
ca364317 BF |
559 | status = nfsd_create(rqstp, &cstate->current_fh, |
560 | create->cr_name, create->cr_namelen, | |
561 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
562 | break; |
563 | ||
564 | case NF4FIFO: | |
ca364317 BF |
565 | status = nfsd_create(rqstp, &cstate->current_fh, |
566 | create->cr_name, create->cr_namelen, | |
567 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
568 | break; |
569 | ||
570 | case NF4DIR: | |
571 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
572 | status = nfsd_create(rqstp, &cstate->current_fh, |
573 | create->cr_name, create->cr_namelen, | |
574 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
575 | break; |
576 | ||
577 | default: | |
578 | status = nfserr_badtype; | |
579 | } | |
580 | ||
9208faf2 YZ |
581 | if (status) |
582 | goto out; | |
1da177e4 | 583 | |
9208faf2 YZ |
584 | if (create->cr_acl != NULL) |
585 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
586 | create->cr_bmval); | |
587 | ||
588 | fh_unlock(&cstate->current_fh); | |
589 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
590 | fh_dup2(&cstate->current_fh, &resfh); | |
591 | out: | |
1da177e4 LT |
592 | fh_put(&resfh); |
593 | return status; | |
594 | } | |
595 | ||
7191155b | 596 | static __be32 |
ca364317 BF |
597 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
598 | struct nfsd4_getattr *getattr) | |
1da177e4 | 599 | { |
b37ad28b | 600 | __be32 status; |
1da177e4 | 601 | |
8837abca | 602 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
603 | if (status) |
604 | return status; | |
605 | ||
606 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
607 | return nfserr_inval; | |
608 | ||
7e705706 AA |
609 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
610 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
611 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 612 | |
ca364317 | 613 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
614 | return nfs_ok; |
615 | } | |
616 | ||
7191155b | 617 | static __be32 |
ca364317 BF |
618 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
619 | struct nfsd4_link *link) | |
1da177e4 | 620 | { |
b37ad28b | 621 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 622 | |
ca364317 | 623 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 624 | return status; |
ca364317 BF |
625 | status = nfsd_link(rqstp, &cstate->current_fh, |
626 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 627 | if (!status) |
ca364317 | 628 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
629 | return status; |
630 | } | |
631 | ||
0ff7ab46 | 632 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
633 | { |
634 | struct svc_fh tmp_fh; | |
b37ad28b | 635 | __be32 ret; |
1da177e4 LT |
636 | |
637 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
638 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
639 | if (ret) | |
1da177e4 | 640 | return ret; |
0ff7ab46 | 641 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
642 | fh_put(&tmp_fh); |
643 | return nfserr_noent; | |
644 | } | |
645 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
646 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
647 | } | |
648 | ||
649 | static __be32 | |
650 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
651 | void *arg) | |
652 | { | |
653 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
654 | } |
655 | ||
7191155b | 656 | static __be32 |
ca364317 BF |
657 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
658 | struct nfsd4_lookup *lookup) | |
1da177e4 | 659 | { |
ca364317 BF |
660 | return nfsd_lookup(rqstp, &cstate->current_fh, |
661 | lookup->lo_name, lookup->lo_len, | |
662 | &cstate->current_fh); | |
1da177e4 LT |
663 | } |
664 | ||
7191155b | 665 | static __be32 |
ca364317 BF |
666 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
667 | struct nfsd4_read *read) | |
1da177e4 | 668 | { |
b37ad28b | 669 | __be32 status; |
1da177e4 LT |
670 | |
671 | /* no need to check permission - this will be done in nfsd_read() */ | |
672 | ||
7e06b7f9 | 673 | read->rd_filp = NULL; |
1da177e4 LT |
674 | if (read->rd_offset >= OFFSET_MAX) |
675 | return nfserr_inval; | |
676 | ||
677 | nfs4_lock_state(); | |
678 | /* check stateid */ | |
dd453dfd BH |
679 | if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, |
680 | RD_STATE, &read->rd_filp))) { | |
1da177e4 LT |
681 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
682 | goto out; | |
683 | } | |
7e06b7f9 N |
684 | if (read->rd_filp) |
685 | get_file(read->rd_filp); | |
1da177e4 LT |
686 | status = nfs_ok; |
687 | out: | |
688 | nfs4_unlock_state(); | |
689 | read->rd_rqstp = rqstp; | |
ca364317 | 690 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
691 | return status; |
692 | } | |
693 | ||
7191155b | 694 | static __be32 |
ca364317 BF |
695 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
696 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
697 | { |
698 | u64 cookie = readdir->rd_cookie; | |
699 | static const nfs4_verifier zeroverf; | |
700 | ||
701 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
702 | ||
703 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
704 | return nfserr_inval; | |
705 | ||
7e705706 AA |
706 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
707 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
708 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 709 | |
832023bf | 710 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
711 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
712 | return nfserr_bad_cookie; | |
713 | ||
714 | readdir->rd_rqstp = rqstp; | |
ca364317 | 715 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
716 | return nfs_ok; |
717 | } | |
718 | ||
7191155b | 719 | static __be32 |
ca364317 BF |
720 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
721 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
722 | { |
723 | readlink->rl_rqstp = rqstp; | |
ca364317 | 724 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
725 | return nfs_ok; |
726 | } | |
727 | ||
7191155b | 728 | static __be32 |
ca364317 BF |
729 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
730 | struct nfsd4_remove *remove) | |
1da177e4 | 731 | { |
b37ad28b | 732 | __be32 status; |
1da177e4 | 733 | |
af558e33 | 734 | if (locks_in_grace()) |
c815afc7 | 735 | return nfserr_grace; |
ca364317 BF |
736 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
737 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 738 | if (!status) { |
ca364317 BF |
739 | fh_unlock(&cstate->current_fh); |
740 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
741 | } |
742 | return status; | |
743 | } | |
744 | ||
7191155b | 745 | static __be32 |
ca364317 BF |
746 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
747 | struct nfsd4_rename *rename) | |
1da177e4 | 748 | { |
b37ad28b | 749 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 750 | |
ca364317 | 751 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 752 | return status; |
af558e33 | 753 | if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags |
c815afc7 N |
754 | & NFSEXP_NOSUBTREECHECK)) |
755 | return nfserr_grace; | |
ca364317 BF |
756 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
757 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 LT |
758 | rename->rn_tname, rename->rn_tnamelen); |
759 | ||
760 | /* the underlying filesystem returns different error's than required | |
761 | * by NFSv4. both save_fh and current_fh have been verified.. */ | |
762 | if (status == nfserr_isdir) | |
763 | status = nfserr_exist; | |
764 | else if ((status == nfserr_notdir) && | |
ca364317 BF |
765 | (S_ISDIR(cstate->save_fh.fh_dentry->d_inode->i_mode) && |
766 | S_ISDIR(cstate->current_fh.fh_dentry->d_inode->i_mode))) | |
1da177e4 | 767 | status = nfserr_exist; |
1da177e4 LT |
768 | |
769 | if (!status) { | |
ca364317 BF |
770 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); |
771 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
1da177e4 LT |
772 | } |
773 | return status; | |
774 | } | |
775 | ||
dcb488a3 AA |
776 | static __be32 |
777 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
778 | struct nfsd4_secinfo *secinfo) | |
779 | { | |
780 | struct svc_fh resfh; | |
781 | struct svc_export *exp; | |
782 | struct dentry *dentry; | |
783 | __be32 err; | |
784 | ||
785 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
786 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
787 | if (err) | |
788 | return err; | |
dcb488a3 AA |
789 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
790 | secinfo->si_name, secinfo->si_namelen, | |
791 | &exp, &dentry); | |
792 | if (err) | |
793 | return err; | |
794 | if (dentry->d_inode == NULL) { | |
795 | exp_put(exp); | |
796 | err = nfserr_noent; | |
797 | } else | |
798 | secinfo->si_exp = exp; | |
799 | dput(dentry); | |
56560b9a BF |
800 | if (cstate->minorversion) |
801 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
802 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
803 | return err; |
804 | } | |
805 | ||
04f4ad16 BF |
806 | static __be32 |
807 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
808 | struct nfsd4_secinfo_no_name *sin) | |
809 | { | |
810 | __be32 err; | |
811 | ||
812 | switch (sin->sin_style) { | |
813 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
814 | break; | |
815 | case NFS4_SECINFO_STYLE4_PARENT: | |
816 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
817 | if (err) | |
818 | return err; | |
819 | break; | |
820 | default: | |
821 | return nfserr_inval; | |
822 | } | |
823 | exp_get(cstate->current_fh.fh_export); | |
824 | sin->sin_exp = cstate->current_fh.fh_export; | |
825 | fh_put(&cstate->current_fh); | |
826 | return nfs_ok; | |
827 | } | |
828 | ||
7191155b | 829 | static __be32 |
ca364317 BF |
830 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
831 | struct nfsd4_setattr *setattr) | |
1da177e4 | 832 | { |
b37ad28b | 833 | __be32 status = nfs_ok; |
1da177e4 | 834 | |
1da177e4 LT |
835 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
836 | nfs4_lock_state(); | |
dd453dfd | 837 | status = nfs4_preprocess_stateid_op(cstate, |
6150ef0d | 838 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 839 | nfs4_unlock_state(); |
375c5547 | 840 | if (status) { |
3e3b4800 | 841 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
842 | return status; |
843 | } | |
1da177e4 | 844 | } |
18f335af DH |
845 | status = mnt_want_write(cstate->current_fh.fh_export->ex_path.mnt); |
846 | if (status) | |
847 | return status; | |
1da177e4 | 848 | status = nfs_ok; |
3c8e0316 YZ |
849 | |
850 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
851 | nfsd_attrmask); | |
852 | if (status) | |
853 | goto out; | |
854 | ||
1da177e4 | 855 | if (setattr->sa_acl != NULL) |
ca364317 BF |
856 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
857 | setattr->sa_acl); | |
1da177e4 | 858 | if (status) |
18f335af | 859 | goto out; |
ca364317 | 860 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 861 | 0, (time_t)0); |
18f335af DH |
862 | out: |
863 | mnt_drop_write(cstate->current_fh.fh_export->ex_path.mnt); | |
1da177e4 LT |
864 | return status; |
865 | } | |
866 | ||
7191155b | 867 | static __be32 |
ca364317 BF |
868 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
869 | struct nfsd4_write *write) | |
1da177e4 LT |
870 | { |
871 | stateid_t *stateid = &write->wr_stateid; | |
872 | struct file *filp = NULL; | |
873 | u32 *p; | |
b37ad28b | 874 | __be32 status = nfs_ok; |
31dec253 | 875 | unsigned long cnt; |
1da177e4 LT |
876 | |
877 | /* no need to check permission - this will be done in nfsd_write() */ | |
878 | ||
879 | if (write->wr_offset >= OFFSET_MAX) | |
880 | return nfserr_inval; | |
881 | ||
882 | nfs4_lock_state(); | |
dd453dfd | 883 | status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); |
7e06b7f9 N |
884 | if (filp) |
885 | get_file(filp); | |
1da177e4 LT |
886 | nfs4_unlock_state(); |
887 | ||
375c5547 BF |
888 | if (status) { |
889 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
890 | return status; | |
891 | } | |
892 | ||
31dec253 | 893 | cnt = write->wr_buflen; |
1da177e4 LT |
894 | write->wr_how_written = write->wr_stable_how; |
895 | p = (u32 *)write->wr_verifier.data; | |
896 | *p++ = nfssvc_boot.tv_sec; | |
897 | *p++ = nfssvc_boot.tv_usec; | |
898 | ||
ca364317 BF |
899 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
900 | write->wr_offset, rqstp->rq_vec, write->wr_vlen, | |
31dec253 | 901 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
902 | if (filp) |
903 | fput(filp); | |
1da177e4 | 904 | |
31dec253 DS |
905 | write->wr_bytes_written = cnt; |
906 | ||
1da177e4 | 907 | return status; |
1da177e4 LT |
908 | } |
909 | ||
910 | /* This routine never returns NFS_OK! If there are no other errors, it | |
911 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
912 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
913 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
914 | */ | |
b37ad28b | 915 | static __be32 |
c954e2a5 | 916 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 917 | struct nfsd4_verify *verify) |
1da177e4 | 918 | { |
2ebbc012 | 919 | __be32 *buf, *p; |
1da177e4 | 920 | int count; |
b37ad28b | 921 | __be32 status; |
1da177e4 | 922 | |
8837abca | 923 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
924 | if (status) |
925 | return status; | |
926 | ||
3c8e0316 YZ |
927 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
928 | if (status) | |
929 | return status; | |
930 | ||
1da177e4 LT |
931 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
932 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
933 | return nfserr_inval; | |
934 | if (verify->ve_attrlen & 3) | |
935 | return nfserr_inval; | |
936 | ||
937 | /* count in words: | |
938 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
939 | */ | |
940 | count = 4 + (verify->ve_attrlen >> 2); | |
941 | buf = kmalloc(count << 2, GFP_KERNEL); | |
942 | if (!buf) | |
3e772463 | 943 | return nfserr_jukebox; |
1da177e4 | 944 | |
ca364317 BF |
945 | status = nfsd4_encode_fattr(&cstate->current_fh, |
946 | cstate->current_fh.fh_export, | |
947 | cstate->current_fh.fh_dentry, buf, | |
1da177e4 | 948 | &count, verify->ve_bmval, |
406a7ea9 | 949 | rqstp, 0); |
1da177e4 LT |
950 | |
951 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
952 | if (status == nfserr_resource && count == 0) | |
953 | status = nfserr_not_same; | |
954 | if (status) | |
955 | goto out_kfree; | |
956 | ||
95ec28cd BH |
957 | /* skip bitmap */ |
958 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
959 | status = nfserr_not_same; |
960 | if (ntohl(*p++) != verify->ve_attrlen) | |
961 | goto out_kfree; | |
962 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
963 | status = nfserr_same; | |
964 | ||
965 | out_kfree: | |
966 | kfree(buf); | |
967 | return status; | |
968 | } | |
969 | ||
c954e2a5 BF |
970 | static __be32 |
971 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
972 | struct nfsd4_verify *verify) | |
973 | { | |
974 | __be32 status; | |
975 | ||
976 | status = _nfsd4_verify(rqstp, cstate, verify); | |
977 | return status == nfserr_not_same ? nfs_ok : status; | |
978 | } | |
979 | ||
980 | static __be32 | |
981 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
982 | struct nfsd4_verify *verify) | |
983 | { | |
984 | __be32 status; | |
985 | ||
986 | status = _nfsd4_verify(rqstp, cstate, verify); | |
987 | return status == nfserr_same ? nfs_ok : status; | |
988 | } | |
989 | ||
1da177e4 LT |
990 | /* |
991 | * NULL call. | |
992 | */ | |
7111c66e | 993 | static __be32 |
1da177e4 LT |
994 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
995 | { | |
996 | return nfs_ok; | |
997 | } | |
998 | ||
e2b20950 SA |
999 | static inline void nfsd4_increment_op_stats(u32 opnum) |
1000 | { | |
1001 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1002 | nfsdstats.nfs4_opcount[opnum]++; | |
1003 | } | |
1004 | ||
b591480b BF |
1005 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1006 | void *); | |
58e7b33a MJ |
1007 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
1008 | ||
f9bb94c4 AA |
1009 | enum nfsd4_op_flags { |
1010 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1011 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1012 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1013 | /* For rfc 5661 section 2.6.3.1.1: */ |
1014 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1015 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1016 | /* |
c856694e BF |
1017 | * These are the ops whose result size we estimate before |
1018 | * encoding, to avoid performing an op then not being able to | |
1019 | * respond or cache a response. This includes writes and setattrs | |
1020 | * as well as the operations usually called "nonidempotent": | |
1021 | */ | |
1022 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1023 | /* | |
1024 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1025 | * We use the DRC for compounds containing non-idempotent |
1026 | * operations, *except* those that are 4.1-specific (since | |
1027 | * sessions provide their own EOS), and except for stateful | |
1028 | * operations other than setclientid and setclientid_confirm | |
1029 | * (since sequence numbers provide EOS for open, lock, etc in | |
1030 | * the v4.0 case). | |
1031 | */ | |
c856694e BF |
1032 | OP_CACHEME = 1 << 6, |
1033 | }; | |
1034 | ||
1035 | struct nfsd4_operation { | |
1036 | nfsd4op_func op_func; | |
1037 | u32 op_flags; | |
1038 | char *op_name; | |
58e7b33a MJ |
1039 | /* Try to get response size before operation */ |
1040 | nfsd4op_rsize op_rsize_bop; | |
b591480b BF |
1041 | }; |
1042 | ||
1043 | static struct nfsd4_operation nfsd4_ops[]; | |
1044 | ||
f1c7f79b | 1045 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1046 | |
f9bb94c4 | 1047 | /* |
57716355 | 1048 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1049 | * |
57716355 BF |
1050 | * Also note, enforced elsewhere: |
1051 | * - SEQUENCE other than as first op results in | |
1052 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1053 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1054 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1055 | * - DESTROY_SESSION must be the final operation in a compound, if |
1056 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1057 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1058 | */ |
57716355 | 1059 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1060 | { |
57716355 BF |
1061 | struct nfsd4_op *op = &args->ops[0]; |
1062 | ||
1063 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1064 | if (args->minorversion == 0) | |
1065 | return nfs_ok; | |
1066 | /* This is weird, but OK, not our problem: */ | |
1067 | if (args->opcnt == 0) | |
1068 | return nfs_ok; | |
1069 | if (op->status == nfserr_op_illegal) | |
1070 | return nfs_ok; | |
1071 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1072 | return nfserr_op_not_in_session; | |
1073 | if (op->opnum == OP_SEQUENCE) | |
1074 | return nfs_ok; | |
1075 | if (args->opcnt != 1) | |
1076 | return nfserr_not_only_op; | |
1077 | return nfs_ok; | |
f9bb94c4 AA |
1078 | } |
1079 | ||
22b03214 BF |
1080 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1081 | { | |
1082 | return &nfsd4_ops[op->opnum]; | |
1083 | } | |
1084 | ||
1091006c BF |
1085 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1086 | { | |
c856694e | 1087 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1088 | } |
1089 | ||
68d93184 BF |
1090 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1091 | { | |
1092 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1093 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1094 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1095 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1096 | struct nfsd4_operation *thisd; | |
1097 | struct nfsd4_operation *nextd; | |
1098 | ||
1099 | thisd = OPDESC(this); | |
1100 | /* | |
1101 | * Most ops check wronsec on our own; only the putfh-like ops | |
1102 | * have special rules. | |
1103 | */ | |
1104 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1105 | return false; | |
1106 | /* | |
1107 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1108 | * put-filehandle operation if we're not going to use the | |
1109 | * result: | |
1110 | */ | |
1111 | if (argp->opcnt == resp->opcnt) | |
1112 | return false; | |
1113 | ||
1114 | nextd = OPDESC(next); | |
1115 | /* | |
1116 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1117 | * errors themselves as necessary; others should check for them | |
1118 | * now: | |
1119 | */ | |
1120 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1121 | } | |
1122 | ||
1da177e4 LT |
1123 | /* |
1124 | * COMPOUND call. | |
1125 | */ | |
7111c66e | 1126 | static __be32 |
1da177e4 LT |
1127 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1128 | struct nfsd4_compoundargs *args, | |
1129 | struct nfsd4_compoundres *resp) | |
1130 | { | |
1131 | struct nfsd4_op *op; | |
b591480b | 1132 | struct nfsd4_operation *opdesc; |
e354d571 | 1133 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1134 | int slack_bytes; |
58e7b33a | 1135 | u32 plen = 0; |
b37ad28b | 1136 | __be32 status; |
1da177e4 | 1137 | |
1da177e4 | 1138 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1139 | resp->p = rqstp->rq_res.head[0].iov_base + |
1140 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1141 | resp->tagp = resp->p; |
1142 | /* reserve space for: taglen, tag, and opcnt */ | |
1143 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1144 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1145 | resp->taglen = args->taglen; | |
1146 | resp->tag = args->tag; | |
1147 | resp->opcnt = 0; | |
1148 | resp->rqstp = rqstp; | |
d87a8ade | 1149 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1150 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1151 | resp->cstate.session = NULL; |
e354d571 AA |
1152 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1153 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1154 | /* |
1155 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1156 | * too hard to avoid non-idempotency problems. | |
1157 | */ | |
1158 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1159 | |
1160 | /* | |
1161 | * According to RFC3010, this takes precedence over all other errors. | |
1162 | */ | |
1163 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1164 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1165 | goto out; |
1166 | ||
57716355 BF |
1167 | status = nfs41_check_op_ordering(args); |
1168 | if (status) { | |
f9bb94c4 | 1169 | op = &args->ops[0]; |
57716355 | 1170 | op->status = status; |
f9bb94c4 AA |
1171 | goto encode_op; |
1172 | } | |
1173 | ||
1da177e4 LT |
1174 | while (!status && resp->opcnt < args->opcnt) { |
1175 | op = &args->ops[resp->opcnt++]; | |
1176 | ||
b001a1b6 BH |
1177 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1178 | resp->opcnt, args->opcnt, op->opnum, | |
1179 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1180 | /* |
1181 | * The XDR decode routines may have pre-set op->status; | |
1182 | * for example, if there is a miscellaneous XDR error | |
1183 | * it will be set to nfserr_bad_xdr. | |
1184 | */ | |
1185 | if (op->status) | |
1186 | goto encode_op; | |
1187 | ||
1188 | /* We must be able to encode a successful response to | |
1189 | * this operation, with enough room left over to encode a | |
1190 | * failed response to the next operation. If we don't | |
1191 | * have enough room, fail with ERR_RESOURCE. | |
1192 | */ | |
e5710199 BF |
1193 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1194 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1195 | + COMPOUND_ERR_SLACK_SPACE) { | |
1196 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1197 | op->status = nfserr_resource; |
1198 | goto encode_op; | |
1199 | } | |
1200 | ||
22b03214 | 1201 | opdesc = OPDESC(op); |
b591480b | 1202 | |
ca364317 | 1203 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1204 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1205 | op->status = nfserr_nofilehandle; |
1206 | goto encode_op; | |
1207 | } | |
eeac294e BF |
1208 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1209 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1210 | op->status = nfserr_moved; |
1da177e4 LT |
1211 | goto encode_op; |
1212 | } | |
b591480b | 1213 | |
58e7b33a MJ |
1214 | /* If op is non-idempotent */ |
1215 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1216 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1217 | op->status = nfsd4_check_resp_size(resp, plen); | |
1218 | } | |
1219 | ||
1220 | if (op->status) | |
1221 | goto encode_op; | |
1222 | ||
b591480b BF |
1223 | if (opdesc->op_func) |
1224 | op->status = opdesc->op_func(rqstp, cstate, &op->u); | |
1225 | else | |
1da177e4 | 1226 | BUG_ON(op->status == nfs_ok); |
1da177e4 | 1227 | |
68d93184 BF |
1228 | if (!op->status && need_wrongsec_check(rqstp)) |
1229 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1230 | ||
1da177e4 | 1231 | encode_op: |
49557cc7 | 1232 | /* Only from SEQUENCE */ |
da3846a2 AA |
1233 | if (resp->cstate.status == nfserr_replay_cache) { |
1234 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1235 | status = op->status; |
da3846a2 AA |
1236 | goto out; |
1237 | } | |
a90b061c | 1238 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1239 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1240 | nfsd4_encode_replay(resp, op); |
1241 | status = op->status = op->replay->rp_status; | |
1242 | } else { | |
1243 | nfsd4_encode_operation(resp, op); | |
1244 | status = op->status; | |
1245 | } | |
0407717d BH |
1246 | |
1247 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1248 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1249 | be32_to_cpu(status)); | |
1250 | ||
a4f1706a | 1251 | if (cstate->replay_owner) { |
5ec094c1 | 1252 | nfs4_unlock_state(); |
a4f1706a | 1253 | cstate->replay_owner = NULL; |
1da177e4 | 1254 | } |
7e06b7f9 N |
1255 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1256 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1257 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1258 | |
1259 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1260 | } |
1261 | ||
da3846a2 | 1262 | resp->cstate.status = status; |
e354d571 AA |
1263 | fh_put(&resp->cstate.current_fh); |
1264 | fh_put(&resp->cstate.save_fh); | |
1265 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1266 | out: |
2f425878 AA |
1267 | /* Reset deferral mechanism for RPC deferrals */ |
1268 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1269 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1270 | return status; |
1271 | } | |
1272 | ||
58e7b33a MJ |
1273 | #define op_encode_hdr_size (2) |
1274 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1275 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1276 | #define op_encode_change_info_maxsz (5) | |
1277 | #define nfs4_fattr_bitmap_maxsz (4) | |
1278 | ||
1279 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1280 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1281 | ||
1282 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1283 | ||
1284 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1285 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1286 | op_encode_ace_maxsz) | |
1287 | ||
1288 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1289 | ||
1290 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1291 | { | |
1292 | return (op_encode_hdr_size) * sizeof(__be32); | |
1293 | } | |
1294 | ||
1295 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1296 | { | |
1297 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1298 | } | |
1299 | ||
1300 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1301 | { | |
1302 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1303 | } | |
1304 | ||
1305 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1306 | { | |
1307 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1308 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1309 | } | |
1310 | ||
1311 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1312 | { | |
1313 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1314 | * sizeof(__be32); | |
1315 | } | |
1316 | ||
1317 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1318 | { | |
1319 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1320 | * sizeof(__be32); | |
1321 | } | |
1322 | ||
1323 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1324 | { | |
1325 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1326 | + op_encode_change_info_maxsz + 1 | |
1327 | + nfs4_fattr_bitmap_maxsz | |
1328 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1329 | } | |
1330 | ||
1331 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1332 | { | |
1333 | u32 maxcount = 0, rlen = 0; | |
1334 | ||
1335 | maxcount = svc_max_payload(rqstp); | |
1336 | rlen = op->u.read.rd_length; | |
1337 | ||
1338 | if (rlen > maxcount) | |
1339 | rlen = maxcount; | |
1340 | ||
1341 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1342 | } | |
1343 | ||
1344 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1345 | { | |
1346 | u32 rlen = op->u.readdir.rd_maxcount; | |
1347 | ||
1348 | if (rlen > PAGE_SIZE) | |
1349 | rlen = PAGE_SIZE; | |
1350 | ||
1351 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1352 | * sizeof(__be32) + rlen; | |
1353 | } | |
1354 | ||
1355 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1356 | { | |
1357 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1358 | * sizeof(__be32); | |
1359 | } | |
1360 | ||
1361 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1362 | { | |
1363 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1364 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1365 | } | |
1366 | ||
1367 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1368 | { | |
1369 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1370 | } | |
1371 | ||
1372 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1373 | { | |
1374 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1375 | } | |
1376 | ||
1377 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1378 | { | |
1379 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1380 | } | |
1381 | ||
1382 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1383 | { | |
1384 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
1385 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ | |
1386 | 2 + /*eir_server_owner.so_minor_id */\ | |
1387 | /* eir_server_owner.so_major_id<> */\ | |
1388 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1389 | /* eir_server_scope<> */\ | |
1390 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1391 | 1 + /* eir_server_impl_id array length */\ | |
1392 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1393 | } | |
1394 | ||
1395 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1396 | { | |
1397 | return (op_encode_hdr_size + \ | |
1398 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1399 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1400 | } | |
1401 | ||
1402 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1403 | { | |
1404 | return (op_encode_hdr_size + \ | |
1405 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1406 | 2 + /* csr_sequence, csr_flags */\ | |
1407 | op_encode_channel_attrs_maxsz + \ | |
1408 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1409 | } | |
1410 | ||
20766016 | 1411 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1412 | [OP_ACCESS] = { |
1413 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1414 | .op_name = "OP_ACCESS", |
b591480b BF |
1415 | }, |
1416 | [OP_CLOSE] = { | |
1417 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1418 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1419 | .op_name = "OP_CLOSE", |
58e7b33a | 1420 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1421 | }, |
1422 | [OP_COMMIT] = { | |
1423 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1424 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1425 | .op_name = "OP_COMMIT", |
58e7b33a | 1426 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1427 | }, |
1428 | [OP_CREATE] = { | |
1429 | .op_func = (nfsd4op_func)nfsd4_create, | |
c856694e | 1430 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1431 | .op_name = "OP_CREATE", |
58e7b33a | 1432 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1433 | }, |
1434 | [OP_DELEGRETURN] = { | |
1435 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1436 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1437 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1438 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
1439 | }, |
1440 | [OP_GETATTR] = { | |
1441 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1442 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1443 | .op_name = "OP_GETATTR", |
b591480b BF |
1444 | }, |
1445 | [OP_GETFH] = { | |
1446 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1447 | .op_name = "OP_GETFH", |
b591480b BF |
1448 | }, |
1449 | [OP_LINK] = { | |
1450 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1451 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1452 | | OP_CACHEME, | |
b001a1b6 | 1453 | .op_name = "OP_LINK", |
58e7b33a | 1454 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1455 | }, |
1456 | [OP_LOCK] = { | |
1457 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1458 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1459 | .op_name = "OP_LOCK", |
58e7b33a | 1460 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
b591480b BF |
1461 | }, |
1462 | [OP_LOCKT] = { | |
1463 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1464 | .op_name = "OP_LOCKT", |
b591480b BF |
1465 | }, |
1466 | [OP_LOCKU] = { | |
1467 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1468 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1469 | .op_name = "OP_LOCKU", |
58e7b33a | 1470 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1471 | }, |
1472 | [OP_LOOKUP] = { | |
1473 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
68d93184 | 1474 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1475 | .op_name = "OP_LOOKUP", |
b591480b BF |
1476 | }, |
1477 | [OP_LOOKUPP] = { | |
1478 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
68d93184 | 1479 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1480 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1481 | }, |
1482 | [OP_NVERIFY] = { | |
1483 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1484 | .op_name = "OP_NVERIFY", |
b591480b BF |
1485 | }, |
1486 | [OP_OPEN] = { | |
1487 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1488 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1489 | .op_name = "OP_OPEN", |
58e7b33a | 1490 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
b591480b BF |
1491 | }, |
1492 | [OP_OPEN_CONFIRM] = { | |
1493 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1494 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1495 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1496 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1497 | }, |
1498 | [OP_OPEN_DOWNGRADE] = { | |
1499 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1500 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1501 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1502 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1503 | }, |
1504 | [OP_PUTFH] = { | |
1505 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1506 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1507 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1508 | .op_name = "OP_PUTFH", |
58e7b33a | 1509 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1510 | }, |
eeac294e | 1511 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1512 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1513 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1514 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1515 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1516 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1517 | }, |
b591480b BF |
1518 | [OP_PUTROOTFH] = { |
1519 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1520 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1521 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1522 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1523 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1524 | }, |
1525 | [OP_READ] = { | |
1526 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1527 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1528 | .op_name = "OP_READ", |
58e7b33a | 1529 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
b591480b BF |
1530 | }, |
1531 | [OP_READDIR] = { | |
1532 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1533 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1534 | .op_name = "OP_READDIR", |
58e7b33a | 1535 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1536 | }, |
1537 | [OP_READLINK] = { | |
1538 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1539 | .op_name = "OP_READLINK", |
b591480b BF |
1540 | }, |
1541 | [OP_REMOVE] = { | |
1542 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1543 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1544 | .op_name = "OP_REMOVE", |
58e7b33a | 1545 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1546 | }, |
1547 | [OP_RENAME] = { | |
1548 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1549 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1550 | .op_name = "OP_RENAME", |
58e7b33a | 1551 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1552 | }, |
1553 | [OP_RENEW] = { | |
1554 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1555 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1556 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1557 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1558 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1559 | ||
b591480b BF |
1560 | }, |
1561 | [OP_RESTOREFH] = { | |
1562 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1563 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1564 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1565 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1566 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1567 | }, |
1568 | [OP_SAVEFH] = { | |
1569 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1570 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1571 | .op_name = "OP_SAVEFH", |
58e7b33a | 1572 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1573 | }, |
dcb488a3 AA |
1574 | [OP_SECINFO] = { |
1575 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1576 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1577 | .op_name = "OP_SECINFO", |
dcb488a3 | 1578 | }, |
b591480b BF |
1579 | [OP_SETATTR] = { |
1580 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1581 | .op_name = "OP_SETATTR", |
c856694e | 1582 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1583 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
b591480b BF |
1584 | }, |
1585 | [OP_SETCLIENTID] = { | |
1586 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1587 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1588 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1589 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1590 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1591 | }, |
1592 | [OP_SETCLIENTID_CONFIRM] = { | |
1593 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1594 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1595 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1596 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1597 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1598 | }, |
1599 | [OP_VERIFY] = { | |
1600 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1601 | .op_name = "OP_VERIFY", |
b591480b BF |
1602 | }, |
1603 | [OP_WRITE] = { | |
1604 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1605 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1606 | .op_name = "OP_WRITE", |
58e7b33a | 1607 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
b591480b BF |
1608 | }, |
1609 | [OP_RELEASE_LOCKOWNER] = { | |
1610 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1611 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1612 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1613 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1614 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1615 | }, |
069b6ad4 AA |
1616 | |
1617 | /* NFSv4.1 operations */ | |
1618 | [OP_EXCHANGE_ID] = { | |
1619 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1620 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1621 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1622 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1623 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1624 | }, |
1d1bc8f2 BF |
1625 | [OP_BIND_CONN_TO_SESSION] = { |
1626 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1627 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1628 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1629 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1630 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1631 | }, |
069b6ad4 AA |
1632 | [OP_CREATE_SESSION] = { |
1633 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1634 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1635 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1636 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1637 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1638 | }, |
1639 | [OP_DESTROY_SESSION] = { | |
1640 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1641 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1642 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1643 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1644 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1645 | }, |
1646 | [OP_SEQUENCE] = { | |
1647 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1648 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1649 | .op_name = "OP_SEQUENCE", |
1650 | }, | |
094b5d74 BH |
1651 | [OP_DESTROY_CLIENTID] = { |
1652 | .op_func = NULL, | |
58e7b33a MJ |
1653 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1654 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1655 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1656 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1657 | }, |
4dc6ec00 BF |
1658 | [OP_RECLAIM_COMPLETE] = { |
1659 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1660 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1661 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1662 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1663 | }, |
04f4ad16 BF |
1664 | [OP_SECINFO_NO_NAME] = { |
1665 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1666 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1667 | .op_name = "OP_SECINFO_NO_NAME", |
1668 | }, | |
17456804 BS |
1669 | [OP_TEST_STATEID] = { |
1670 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1671 | .op_flags = ALLOWED_WITHOUT_FH, | |
1672 | .op_name = "OP_TEST_STATEID", | |
1673 | }, | |
e1ca12df BS |
1674 | [OP_FREE_STATEID] = { |
1675 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1676 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1677 | .op_name = "OP_FREE_STATEID", |
58e7b33a | 1678 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1679 | }, |
b591480b BF |
1680 | }; |
1681 | ||
f1c7f79b | 1682 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1683 | { |
1684 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1685 | return nfsd4_ops[opnum].op_name; | |
1686 | return "unknown_operation"; | |
1687 | } | |
1688 | ||
1da177e4 | 1689 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1690 | struct nfsd4_voidargs { int dummy; }; |
1691 | ||
1da177e4 | 1692 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1693 | [NFSPROC4_NULL] = { |
1694 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1695 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1696 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1697 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1698 | .pc_cachetype = RC_NOCACHE, | |
1699 | .pc_xdrressize = 1, | |
1700 | }, | |
1701 | [NFSPROC4_COMPOUND] = { | |
1702 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1703 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1704 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1705 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1706 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1707 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1708 | .pc_cachetype = RC_NOCACHE, |
1709 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1710 | }, | |
1da177e4 LT |
1711 | }; |
1712 | ||
1713 | struct svc_version nfsd_version4 = { | |
1714 | .vs_vers = 4, | |
1715 | .vs_nproc = 2, | |
1716 | .vs_proc = nfsd_procedures4, | |
1717 | .vs_dispatch = nfsd_dispatch, | |
1718 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1719 | }; | |
1720 | ||
1721 | /* | |
1722 | * Local variables: | |
1723 | * c-basic-offset: 8 | |
1724 | * End: | |
1725 | */ |