Commit | Line | Data |
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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" |
8b70484c | 42 | #include "current_stateid.h" |
3320fef1 | 43 | #include "netns.h" |
1da177e4 | 44 | |
18032ca0 DQ |
45 | #ifdef CONFIG_NFSD_V4_SECURITY_LABEL |
46 | #include <linux/security.h> | |
47 | ||
48 | static inline void | |
49 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) | |
50 | { | |
51 | struct inode *inode = resfh->fh_dentry->d_inode; | |
52 | int status; | |
53 | ||
54 | mutex_lock(&inode->i_mutex); | |
55 | status = security_inode_setsecctx(resfh->fh_dentry, | |
56 | label->data, label->len); | |
57 | mutex_unlock(&inode->i_mutex); | |
58 | ||
59 | if (status) | |
60 | /* | |
61 | * XXX: We should really fail the whole open, but we may | |
62 | * already have created a new file, so it may be too | |
63 | * late. For now this seems the least of evils: | |
64 | */ | |
65 | bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL; | |
66 | ||
67 | return; | |
68 | } | |
69 | #else | |
70 | static inline void | |
71 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) | |
72 | { } | |
73 | #endif | |
74 | ||
1da177e4 LT |
75 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
76 | ||
3c8e0316 YZ |
77 | static u32 nfsd_attrmask[] = { |
78 | NFSD_WRITEABLE_ATTRS_WORD0, | |
79 | NFSD_WRITEABLE_ATTRS_WORD1, | |
80 | NFSD_WRITEABLE_ATTRS_WORD2 | |
81 | }; | |
82 | ||
83 | static u32 nfsd41_ex_attrmask[] = { | |
84 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
85 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
86 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
87 | }; | |
88 | ||
89 | static __be32 | |
90 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
91 | u32 *bmval, u32 *writable) | |
92 | { | |
93 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
3c8e0316 YZ |
94 | |
95 | /* | |
96 | * Check about attributes are supported by the NFSv4 server or not. | |
97 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. | |
98 | */ | |
99 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || | |
100 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || | |
101 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) | |
102 | return nfserr_attrnotsupp; | |
103 | ||
104 | /* | |
a06b1261 | 105 | * Check FATTR4_WORD0_ACL can be supported |
3c8e0316 YZ |
106 | * in current environment or not. |
107 | */ | |
108 | if (bmval[0] & FATTR4_WORD0_ACL) { | |
109 | if (!IS_POSIXACL(dentry->d_inode)) | |
110 | return nfserr_attrnotsupp; | |
111 | } | |
3c8e0316 YZ |
112 | |
113 | /* | |
114 | * According to spec, read-only attributes return ERR_INVAL. | |
115 | */ | |
116 | if (writable) { | |
117 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || | |
118 | (bmval[2] & ~writable[2])) | |
119 | return nfserr_inval; | |
120 | } | |
121 | ||
122 | return nfs_ok; | |
123 | } | |
124 | ||
125 | static __be32 | |
126 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
127 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
128 | { | |
129 | __be32 status = nfs_ok; | |
130 | ||
131 | if (open->op_create == NFS4_OPEN_CREATE) { | |
132 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
133 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
134 | status = check_attr_support(rqstp, cstate, | |
135 | open->op_bmval, nfsd_attrmask); | |
136 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
137 | status = check_attr_support(rqstp, cstate, | |
138 | open->op_bmval, nfsd41_ex_attrmask); | |
139 | } | |
140 | ||
141 | return status; | |
142 | } | |
143 | ||
9208faf2 YZ |
144 | static int |
145 | is_create_with_attrs(struct nfsd4_open *open) | |
146 | { | |
147 | return open->op_create == NFS4_OPEN_CREATE | |
148 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
149 | || open->op_createmode == NFS4_CREATE_GUARDED | |
150 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
151 | } | |
152 | ||
153 | /* | |
154 | * if error occurs when setting the acl, just clear the acl bit | |
155 | * in the returned attr bitmap. | |
156 | */ | |
157 | static void | |
158 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
159 | struct nfs4_acl *acl, u32 *bmval) | |
160 | { | |
161 | __be32 status; | |
162 | ||
163 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
164 | if (status) | |
165 | /* | |
166 | * We should probably fail the whole open at this point, | |
167 | * but we've already created the file, so it's too late; | |
168 | * So this seems the least of evils: | |
169 | */ | |
170 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
171 | } | |
172 | ||
1da177e4 LT |
173 | static inline void |
174 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
175 | { | |
176 | fh_put(dst); | |
177 | dget(src->fh_dentry); | |
178 | if (src->fh_export) | |
179 | cache_get(&src->fh_export->h); | |
180 | *dst = *src; | |
181 | } | |
182 | ||
b37ad28b | 183 | static __be32 |
dc730e17 | 184 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 185 | { |
b37ad28b | 186 | __be32 status; |
1da177e4 LT |
187 | |
188 | if (open->op_truncate && | |
189 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
190 | return nfserr_inval; | |
191 | ||
a043226b BF |
192 | accmode |= NFSD_MAY_READ_IF_EXEC; |
193 | ||
1da177e4 | 194 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 195 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 196 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 197 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 198 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 199 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
200 | |
201 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
202 | ||
203 | return status; | |
204 | } | |
205 | ||
aadab6c6 BF |
206 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
207 | { | |
208 | umode_t mode = fh->fh_dentry->d_inode->i_mode; | |
209 | ||
210 | if (S_ISREG(mode)) | |
211 | return nfs_ok; | |
212 | if (S_ISDIR(mode)) | |
213 | return nfserr_isdir; | |
214 | /* | |
215 | * Using err_symlink as our catch-all case may look odd; but | |
216 | * there's no other obvious error for this case in 4.0, and we | |
217 | * happen to know that it will cause the linux v4 client to do | |
218 | * the right thing on attempts to open something other than a | |
219 | * regular file. | |
220 | */ | |
221 | return nfserr_symlink; | |
222 | } | |
223 | ||
bbc9c36c BF |
224 | static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh) |
225 | { | |
226 | if (nfsd4_has_session(cstate)) | |
227 | return; | |
228 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, | |
229 | &resfh->fh_handle); | |
230 | } | |
231 | ||
b37ad28b | 232 | static __be32 |
bbc9c36c | 233 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
1da177e4 | 234 | { |
bbc9c36c | 235 | struct svc_fh *current_fh = &cstate->current_fh; |
59deeb9e | 236 | struct svc_fh *resfh; |
7007c90f | 237 | int accmode; |
b37ad28b | 238 | __be32 status; |
1da177e4 | 239 | |
59deeb9e BF |
240 | resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
241 | if (!resfh) | |
242 | return nfserr_jukebox; | |
243 | fh_init(resfh, NFS4_FHSIZE); | |
1da177e4 LT |
244 | open->op_truncate = 0; |
245 | ||
246 | if (open->op_create) { | |
79fb54ab BH |
247 | /* FIXME: check session persistence and pnfs flags. |
248 | * The nfsv4.1 spec requires the following semantics: | |
249 | * | |
250 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
251 | * Reply Cache | server | | | |
252 | * -------------+--------+-----------------+-------------------- | |
253 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
254 | * | | | (SHOULD) | |
255 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
256 | * | | | (SHOULD NOT) | |
257 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
258 | * yes | no | GUARDED4 | GUARDED4 | |
259 | * yes | yes | GUARDED4 | GUARDED4 | |
260 | */ | |
261 | ||
1da177e4 LT |
262 | /* |
263 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 264 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 265 | */ |
ac6721a1 | 266 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 | 267 | open->op_fname.len, &open->op_iattr, |
59deeb9e | 268 | resfh, open->op_createmode, |
749997e5 | 269 | (u32 *)open->op_verf.data, |
856121b2 | 270 | &open->op_truncate, &open->op_created); |
749997e5 | 271 | |
18032ca0 DQ |
272 | if (!status && open->op_label.len) |
273 | nfsd4_security_inode_setsecctx(resfh, &open->op_label, open->op_bmval); | |
274 | ||
99f88726 BF |
275 | /* |
276 | * Following rfc 3530 14.2.16, use the returned bitmask | |
277 | * to indicate which attributes we used to store the | |
278 | * verifier: | |
749997e5 JL |
279 | */ |
280 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) | |
99f88726 | 281 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
9dc4e6c4 | 282 | FATTR4_WORD1_TIME_MODIFY); |
af85852d | 283 | } else { |
1da177e4 | 284 | status = nfsd_lookup(rqstp, current_fh, |
59deeb9e | 285 | open->op_fname.data, open->op_fname.len, resfh); |
1da177e4 LT |
286 | fh_unlock(current_fh); |
287 | } | |
9dc4e6c4 BF |
288 | if (status) |
289 | goto out; | |
290 | status = nfsd_check_obj_isreg(resfh); | |
af85852d BF |
291 | if (status) |
292 | goto out; | |
1da177e4 | 293 | |
9208faf2 | 294 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
59deeb9e | 295 | do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); |
9208faf2 | 296 | |
bbc9c36c | 297 | nfsd4_set_open_owner_reply_cache(cstate, open, resfh); |
7007c90f | 298 | accmode = NFSD_MAY_NOP; |
89f6c336 BF |
299 | if (open->op_created || |
300 | open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR) | |
7007c90f NB |
301 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
302 | status = do_open_permission(rqstp, resfh, open, accmode); | |
41fd1e42 | 303 | set_change_info(&open->op_cinfo, current_fh); |
59deeb9e | 304 | fh_dup2(current_fh, resfh); |
af85852d | 305 | out: |
59deeb9e BF |
306 | fh_put(resfh); |
307 | kfree(resfh); | |
1da177e4 LT |
308 | return status; |
309 | } | |
310 | ||
b37ad28b | 311 | static __be32 |
bbc9c36c | 312 | do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
1da177e4 | 313 | { |
bbc9c36c | 314 | struct svc_fh *current_fh = &cstate->current_fh; |
b37ad28b | 315 | __be32 status; |
9f415eb2 | 316 | int accmode = 0; |
1da177e4 | 317 | |
1da177e4 LT |
318 | /* We don't know the target directory, and therefore can not |
319 | * set the change info | |
320 | */ | |
321 | ||
322 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
323 | ||
bbc9c36c | 324 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
1da177e4 LT |
325 | |
326 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
327 | (open->op_iattr.ia_size == 0); | |
9f415eb2 BF |
328 | /* |
329 | * In the delegation case, the client is telling us about an | |
330 | * open that it *already* performed locally, some time ago. We | |
331 | * should let it succeed now if possible. | |
332 | * | |
333 | * In the case of a CLAIM_FH open, on the other hand, the client | |
334 | * may be counting on us to enforce permissions (the Linux 4.1 | |
335 | * client uses this for normal opens, for example). | |
336 | */ | |
337 | if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH) | |
338 | accmode = NFSD_MAY_OWNER_OVERRIDE; | |
1da177e4 | 339 | |
9f415eb2 | 340 | status = do_open_permission(rqstp, current_fh, open, accmode); |
1da177e4 LT |
341 | |
342 | return status; | |
343 | } | |
344 | ||
60adfc50 AA |
345 | static void |
346 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
347 | { | |
348 | struct nfsd4_sessionid *sid = | |
349 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
350 | ||
351 | clid->cl_boot = sid->clientid.cl_boot; | |
352 | clid->cl_id = sid->clientid.cl_id; | |
353 | } | |
1da177e4 | 354 | |
7191155b | 355 | static __be32 |
ca364317 | 356 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 357 | struct nfsd4_open *open) |
1da177e4 | 358 | { |
b37ad28b | 359 | __be32 status; |
6668958f | 360 | struct nfsd4_compoundres *resp; |
3320fef1 SK |
361 | struct net *net = SVC_NET(rqstp); |
362 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); | |
6668958f | 363 | |
fe0750e5 | 364 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 365 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 366 | open->op_openowner); |
1da177e4 | 367 | |
1da177e4 LT |
368 | /* This check required by spec. */ |
369 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
370 | return nfserr_inval; | |
371 | ||
856121b2 | 372 | open->op_created = 0; |
ab1350b2 MJ |
373 | /* |
374 | * RFC5661 18.51.3 | |
375 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
376 | */ | |
377 | if (nfsd4_has_session(cstate) && | |
a52d726b JL |
378 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
379 | &cstate->session->se_client->cl_flags) && | |
ab1350b2 MJ |
380 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
381 | return nfserr_grace; | |
382 | ||
60adfc50 AA |
383 | if (nfsd4_has_session(cstate)) |
384 | copy_clientid(&open->op_clientid, cstate->session); | |
385 | ||
1da177e4 LT |
386 | nfs4_lock_state(); |
387 | ||
388 | /* check seqid for replay. set nfs4_owner */ | |
6668958f | 389 | resp = rqstp->rq_resp; |
3320fef1 | 390 | status = nfsd4_process_open1(&resp->cstate, open, nn); |
a90b061c | 391 | if (status == nfserr_replay_me) { |
fe0750e5 | 392 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 393 | fh_put(&cstate->current_fh); |
a4773c08 BF |
394 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
395 | &rp->rp_openfh); | |
8837abca | 396 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
397 | if (status) |
398 | dprintk("nfsd4_open: replay failed" | |
399 | " restoring previous filehandle\n"); | |
400 | else | |
a90b061c | 401 | status = nfserr_replay_me; |
1da177e4 LT |
402 | } |
403 | if (status) | |
404 | goto out; | |
9d313b17 BF |
405 | if (open->op_xdr_error) { |
406 | status = open->op_xdr_error; | |
407 | goto out; | |
408 | } | |
fb553c0f | 409 | |
3c8e0316 YZ |
410 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
411 | if (status) | |
412 | goto out; | |
413 | ||
fb553c0f BF |
414 | /* Openowner is now set, so sequence id will get bumped. Now we need |
415 | * these checks before we do any creates: */ | |
cbd0d51a | 416 | status = nfserr_grace; |
3320fef1 | 417 | if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
418 | goto out; |
419 | status = nfserr_no_grace; | |
3320fef1 | 420 | if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 421 | goto out; |
fb553c0f | 422 | |
1da177e4 | 423 | switch (open->op_claim_type) { |
0dd3c192 | 424 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 425 | case NFS4_OPEN_CLAIM_NULL: |
bbc9c36c | 426 | status = do_open_lookup(rqstp, cstate, open); |
1da177e4 LT |
427 | if (status) |
428 | goto out; | |
429 | break; | |
430 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
dad1c067 | 431 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
3320fef1 SK |
432 | status = nfs4_check_open_reclaim(&open->op_clientid, |
433 | cstate->minorversion, | |
434 | nn); | |
0cf99b91 MJ |
435 | if (status) |
436 | goto out; | |
8b289b2c BF |
437 | case NFS4_OPEN_CLAIM_FH: |
438 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
bbc9c36c | 439 | status = do_open_fhandle(rqstp, cstate, open); |
1da177e4 LT |
440 | if (status) |
441 | goto out; | |
442 | break; | |
8b289b2c | 443 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 444 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
dad1c067 | 445 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
2fdada03 | 446 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
447 | open->op_claim_type); |
448 | status = nfserr_notsupp; | |
449 | goto out; | |
450 | default: | |
2fdada03 | 451 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
452 | open->op_claim_type); |
453 | status = nfserr_inval; | |
454 | goto out; | |
455 | } | |
456 | /* | |
457 | * nfsd4_process_open2() does the actual opening of the file. If | |
458 | * successful, it (1) truncates the file if open->op_truncate was | |
459 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
460 | */ | |
ca364317 | 461 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
856121b2 | 462 | WARN_ON(status && open->op_created); |
1da177e4 | 463 | out: |
d29b20cd | 464 | nfsd4_cleanup_open_state(open, status); |
3d74e6a5 | 465 | if (open->op_openowner && !nfsd4_has_session(cstate)) |
fe0750e5 | 466 | cstate->replay_owner = &open->op_openowner->oo_owner; |
9411b1d4 BF |
467 | nfsd4_bump_seqid(cstate, status); |
468 | if (!cstate->replay_owner) | |
5ec094c1 | 469 | nfs4_unlock_state(); |
1da177e4 LT |
470 | return status; |
471 | } | |
472 | ||
9d313b17 BF |
473 | /* |
474 | * OPEN is the only seqid-mutating operation whose decoding can fail | |
475 | * with a seqid-mutating error (specifically, decoding of user names in | |
476 | * the attributes). Therefore we have to do some processing to look up | |
477 | * the stateowner so that we can bump the seqid. | |
478 | */ | |
479 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) | |
480 | { | |
481 | struct nfsd4_open *open = (struct nfsd4_open *)&op->u; | |
482 | ||
483 | if (!seqid_mutating_err(ntohl(op->status))) | |
484 | return op->status; | |
485 | if (nfsd4_has_session(cstate)) | |
486 | return op->status; | |
487 | open->op_xdr_error = op->status; | |
488 | return nfsd4_open(rqstp, cstate, open); | |
489 | } | |
490 | ||
1da177e4 LT |
491 | /* |
492 | * filehandle-manipulating ops. | |
493 | */ | |
7191155b | 494 | static __be32 |
b591480b BF |
495 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
496 | struct svc_fh **getfh) | |
1da177e4 | 497 | { |
ca364317 | 498 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
499 | return nfserr_nofilehandle; |
500 | ||
ca364317 | 501 | *getfh = &cstate->current_fh; |
1da177e4 LT |
502 | return nfs_ok; |
503 | } | |
504 | ||
7191155b | 505 | static __be32 |
ca364317 BF |
506 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
507 | struct nfsd4_putfh *putfh) | |
1da177e4 | 508 | { |
ca364317 BF |
509 | fh_put(&cstate->current_fh); |
510 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
511 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
512 | putfh->pf_fhlen); | |
68d93184 | 513 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
514 | } |
515 | ||
7191155b | 516 | static __be32 |
b591480b BF |
517 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
518 | void *arg) | |
1da177e4 | 519 | { |
b37ad28b | 520 | __be32 status; |
1da177e4 | 521 | |
ca364317 | 522 | fh_put(&cstate->current_fh); |
df547efb | 523 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
524 | return status; |
525 | } | |
526 | ||
7191155b | 527 | static __be32 |
b591480b BF |
528 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
529 | void *arg) | |
1da177e4 | 530 | { |
ca364317 | 531 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
532 | return nfserr_restorefh; |
533 | ||
ca364317 | 534 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
37c593c5 TM |
535 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
536 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); | |
537 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); | |
538 | } | |
1da177e4 LT |
539 | return nfs_ok; |
540 | } | |
541 | ||
7191155b | 542 | static __be32 |
b591480b BF |
543 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
544 | void *arg) | |
1da177e4 | 545 | { |
ca364317 | 546 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
547 | return nfserr_nofilehandle; |
548 | ||
ca364317 | 549 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
37c593c5 TM |
550 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
551 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); | |
552 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); | |
553 | } | |
1da177e4 LT |
554 | return nfs_ok; |
555 | } | |
556 | ||
557 | /* | |
558 | * misc nfsv4 ops | |
559 | */ | |
7191155b | 560 | static __be32 |
ca364317 BF |
561 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
562 | struct nfsd4_access *access) | |
1da177e4 LT |
563 | { |
564 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
565 | return nfserr_inval; | |
566 | ||
567 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
568 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
569 | &access->ac_supported); | |
1da177e4 LT |
570 | } |
571 | ||
b9c0ef85 | 572 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
ab4684d1 CL |
573 | { |
574 | __be32 verf[2]; | |
b9c0ef85 | 575 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
ab4684d1 | 576 | |
b9c0ef85 SK |
577 | verf[0] = (__be32)nn->nfssvc_boot.tv_sec; |
578 | verf[1] = (__be32)nn->nfssvc_boot.tv_usec; | |
ab4684d1 CL |
579 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
580 | } | |
581 | ||
7191155b | 582 | static __be32 |
ca364317 BF |
583 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
584 | struct nfsd4_commit *commit) | |
1da177e4 | 585 | { |
b9c0ef85 | 586 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
75c096f7 | 587 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 588 | commit->co_count); |
1da177e4 LT |
589 | } |
590 | ||
b37ad28b | 591 | static __be32 |
ca364317 BF |
592 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
593 | struct nfsd4_create *create) | |
1da177e4 LT |
594 | { |
595 | struct svc_fh resfh; | |
b37ad28b | 596 | __be32 status; |
1da177e4 LT |
597 | dev_t rdev; |
598 | ||
599 | fh_init(&resfh, NFS4_FHSIZE); | |
600 | ||
8837abca MS |
601 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
602 | NFSD_MAY_CREATE); | |
1da177e4 LT |
603 | if (status) |
604 | return status; | |
605 | ||
3c8e0316 YZ |
606 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
607 | nfsd_attrmask); | |
608 | if (status) | |
609 | return status; | |
610 | ||
1da177e4 LT |
611 | switch (create->cr_type) { |
612 | case NF4LNK: | |
613 | /* ugh! we have to null-terminate the linktext, or | |
614 | * vfs_symlink() will choke. it is always safe to | |
615 | * null-terminate by brute force, since at worst we | |
616 | * will overwrite the first byte of the create namelen | |
617 | * in the XDR buffer, which has already been extracted | |
618 | * during XDR decode. | |
619 | */ | |
620 | create->cr_linkname[create->cr_linklen] = 0; | |
621 | ||
ca364317 BF |
622 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
623 | create->cr_name, create->cr_namelen, | |
624 | create->cr_linkname, create->cr_linklen, | |
625 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
626 | break; |
627 | ||
628 | case NF4BLK: | |
629 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
630 | if (MAJOR(rdev) != create->cr_specdata1 || | |
631 | MINOR(rdev) != create->cr_specdata2) | |
632 | return nfserr_inval; | |
ca364317 BF |
633 | status = nfsd_create(rqstp, &cstate->current_fh, |
634 | create->cr_name, create->cr_namelen, | |
635 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
636 | break; |
637 | ||
638 | case NF4CHR: | |
639 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
640 | if (MAJOR(rdev) != create->cr_specdata1 || | |
641 | MINOR(rdev) != create->cr_specdata2) | |
642 | return nfserr_inval; | |
ca364317 BF |
643 | status = nfsd_create(rqstp, &cstate->current_fh, |
644 | create->cr_name, create->cr_namelen, | |
645 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
646 | break; |
647 | ||
648 | case NF4SOCK: | |
ca364317 BF |
649 | status = nfsd_create(rqstp, &cstate->current_fh, |
650 | create->cr_name, create->cr_namelen, | |
651 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
652 | break; |
653 | ||
654 | case NF4FIFO: | |
ca364317 BF |
655 | status = nfsd_create(rqstp, &cstate->current_fh, |
656 | create->cr_name, create->cr_namelen, | |
657 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
658 | break; |
659 | ||
660 | case NF4DIR: | |
661 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
662 | status = nfsd_create(rqstp, &cstate->current_fh, |
663 | create->cr_name, create->cr_namelen, | |
664 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
665 | break; |
666 | ||
667 | default: | |
668 | status = nfserr_badtype; | |
669 | } | |
670 | ||
9208faf2 YZ |
671 | if (status) |
672 | goto out; | |
1da177e4 | 673 | |
18032ca0 DQ |
674 | if (create->cr_label.len) |
675 | nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); | |
676 | ||
9208faf2 YZ |
677 | if (create->cr_acl != NULL) |
678 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
679 | create->cr_bmval); | |
680 | ||
681 | fh_unlock(&cstate->current_fh); | |
682 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
683 | fh_dup2(&cstate->current_fh, &resfh); | |
684 | out: | |
1da177e4 LT |
685 | fh_put(&resfh); |
686 | return status; | |
687 | } | |
688 | ||
7191155b | 689 | static __be32 |
ca364317 BF |
690 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
691 | struct nfsd4_getattr *getattr) | |
1da177e4 | 692 | { |
b37ad28b | 693 | __be32 status; |
1da177e4 | 694 | |
8837abca | 695 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
696 | if (status) |
697 | return status; | |
698 | ||
699 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
700 | return nfserr_inval; | |
701 | ||
7e705706 AA |
702 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
703 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
704 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 705 | |
ca364317 | 706 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
707 | return nfs_ok; |
708 | } | |
709 | ||
7191155b | 710 | static __be32 |
ca364317 BF |
711 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
712 | struct nfsd4_link *link) | |
1da177e4 | 713 | { |
b37ad28b | 714 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 715 | |
ca364317 | 716 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 717 | return status; |
ca364317 BF |
718 | status = nfsd_link(rqstp, &cstate->current_fh, |
719 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 720 | if (!status) |
ca364317 | 721 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
722 | return status; |
723 | } | |
724 | ||
0ff7ab46 | 725 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
726 | { |
727 | struct svc_fh tmp_fh; | |
b37ad28b | 728 | __be32 ret; |
1da177e4 LT |
729 | |
730 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
731 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
732 | if (ret) | |
1da177e4 | 733 | return ret; |
0ff7ab46 | 734 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
735 | fh_put(&tmp_fh); |
736 | return nfserr_noent; | |
737 | } | |
738 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
739 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
740 | } | |
741 | ||
742 | static __be32 | |
743 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
744 | void *arg) | |
745 | { | |
746 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
747 | } |
748 | ||
7191155b | 749 | static __be32 |
ca364317 BF |
750 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
751 | struct nfsd4_lookup *lookup) | |
1da177e4 | 752 | { |
ca364317 BF |
753 | return nfsd_lookup(rqstp, &cstate->current_fh, |
754 | lookup->lo_name, lookup->lo_len, | |
755 | &cstate->current_fh); | |
1da177e4 LT |
756 | } |
757 | ||
7191155b | 758 | static __be32 |
ca364317 BF |
759 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
760 | struct nfsd4_read *read) | |
1da177e4 | 761 | { |
b37ad28b | 762 | __be32 status; |
1da177e4 LT |
763 | |
764 | /* no need to check permission - this will be done in nfsd_read() */ | |
765 | ||
7e06b7f9 | 766 | read->rd_filp = NULL; |
1da177e4 LT |
767 | if (read->rd_offset >= OFFSET_MAX) |
768 | return nfserr_inval; | |
769 | ||
9b3234b9 BF |
770 | /* |
771 | * If we do a zero copy read, then a client will see read data | |
772 | * that reflects the state of the file *after* performing the | |
773 | * following compound. | |
774 | * | |
775 | * To ensure proper ordering, we therefore turn off zero copy if | |
776 | * the client wants us to do more in this compound: | |
777 | */ | |
778 | if (!nfsd4_last_compound_op(rqstp)) | |
779 | rqstp->rq_splice_ok = false; | |
780 | ||
1da177e4 LT |
781 | nfs4_lock_state(); |
782 | /* check stateid */ | |
5ccb0066 SK |
783 | if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
784 | cstate, &read->rd_stateid, | |
dd453dfd | 785 | RD_STATE, &read->rd_filp))) { |
1da177e4 LT |
786 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
787 | goto out; | |
788 | } | |
7e06b7f9 N |
789 | if (read->rd_filp) |
790 | get_file(read->rd_filp); | |
1da177e4 LT |
791 | status = nfs_ok; |
792 | out: | |
793 | nfs4_unlock_state(); | |
794 | read->rd_rqstp = rqstp; | |
ca364317 | 795 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
796 | return status; |
797 | } | |
798 | ||
7191155b | 799 | static __be32 |
ca364317 BF |
800 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
801 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
802 | { |
803 | u64 cookie = readdir->rd_cookie; | |
804 | static const nfs4_verifier zeroverf; | |
805 | ||
806 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
807 | ||
808 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
809 | return nfserr_inval; | |
810 | ||
7e705706 AA |
811 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
812 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
813 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 814 | |
832023bf | 815 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
816 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
817 | return nfserr_bad_cookie; | |
818 | ||
819 | readdir->rd_rqstp = rqstp; | |
ca364317 | 820 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
821 | return nfs_ok; |
822 | } | |
823 | ||
7191155b | 824 | static __be32 |
ca364317 BF |
825 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
826 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
827 | { |
828 | readlink->rl_rqstp = rqstp; | |
ca364317 | 829 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
830 | return nfs_ok; |
831 | } | |
832 | ||
7191155b | 833 | static __be32 |
ca364317 BF |
834 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
835 | struct nfsd4_remove *remove) | |
1da177e4 | 836 | { |
b37ad28b | 837 | __be32 status; |
1da177e4 | 838 | |
5ccb0066 | 839 | if (locks_in_grace(SVC_NET(rqstp))) |
c815afc7 | 840 | return nfserr_grace; |
ca364317 BF |
841 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
842 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 843 | if (!status) { |
ca364317 BF |
844 | fh_unlock(&cstate->current_fh); |
845 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
846 | } |
847 | return status; | |
848 | } | |
849 | ||
7191155b | 850 | static __be32 |
ca364317 BF |
851 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
852 | struct nfsd4_rename *rename) | |
1da177e4 | 853 | { |
b37ad28b | 854 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 855 | |
ca364317 | 856 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 857 | return status; |
5ccb0066 SK |
858 | if (locks_in_grace(SVC_NET(rqstp)) && |
859 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) | |
c815afc7 | 860 | return nfserr_grace; |
ca364317 BF |
861 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
862 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 | 863 | rename->rn_tname, rename->rn_tnamelen); |
2a6cf944 BF |
864 | if (status) |
865 | return status; | |
866 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); | |
867 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
868 | return nfs_ok; | |
1da177e4 LT |
869 | } |
870 | ||
dcb488a3 AA |
871 | static __be32 |
872 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
873 | struct nfsd4_secinfo *secinfo) | |
874 | { | |
875 | struct svc_fh resfh; | |
876 | struct svc_export *exp; | |
877 | struct dentry *dentry; | |
878 | __be32 err; | |
879 | ||
880 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
881 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
882 | if (err) | |
883 | return err; | |
dcb488a3 AA |
884 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
885 | secinfo->si_name, secinfo->si_namelen, | |
886 | &exp, &dentry); | |
887 | if (err) | |
888 | return err; | |
889 | if (dentry->d_inode == NULL) { | |
890 | exp_put(exp); | |
891 | err = nfserr_noent; | |
892 | } else | |
893 | secinfo->si_exp = exp; | |
894 | dput(dentry); | |
56560b9a BF |
895 | if (cstate->minorversion) |
896 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
897 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
898 | return err; |
899 | } | |
900 | ||
04f4ad16 BF |
901 | static __be32 |
902 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
903 | struct nfsd4_secinfo_no_name *sin) | |
904 | { | |
905 | __be32 err; | |
906 | ||
907 | switch (sin->sin_style) { | |
908 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
909 | break; | |
910 | case NFS4_SECINFO_STYLE4_PARENT: | |
911 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
912 | if (err) | |
913 | return err; | |
914 | break; | |
915 | default: | |
916 | return nfserr_inval; | |
917 | } | |
918 | exp_get(cstate->current_fh.fh_export); | |
919 | sin->sin_exp = cstate->current_fh.fh_export; | |
920 | fh_put(&cstate->current_fh); | |
921 | return nfs_ok; | |
922 | } | |
923 | ||
7191155b | 924 | static __be32 |
ca364317 BF |
925 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
926 | struct nfsd4_setattr *setattr) | |
1da177e4 | 927 | { |
b37ad28b | 928 | __be32 status = nfs_ok; |
96f6f985 | 929 | int err; |
1da177e4 | 930 | |
1da177e4 LT |
931 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
932 | nfs4_lock_state(); | |
5ccb0066 | 933 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, |
6150ef0d | 934 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 935 | nfs4_unlock_state(); |
375c5547 | 936 | if (status) { |
3e3b4800 | 937 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
938 | return status; |
939 | } | |
1da177e4 | 940 | } |
96f6f985 AV |
941 | err = fh_want_write(&cstate->current_fh); |
942 | if (err) | |
943 | return nfserrno(err); | |
1da177e4 | 944 | status = nfs_ok; |
3c8e0316 YZ |
945 | |
946 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
947 | nfsd_attrmask); | |
948 | if (status) | |
949 | goto out; | |
950 | ||
1da177e4 | 951 | if (setattr->sa_acl != NULL) |
ca364317 BF |
952 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
953 | setattr->sa_acl); | |
1da177e4 | 954 | if (status) |
18f335af | 955 | goto out; |
18032ca0 DQ |
956 | if (setattr->sa_label.len) |
957 | status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh, | |
958 | &setattr->sa_label); | |
959 | if (status) | |
960 | goto out; | |
ca364317 | 961 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 962 | 0, (time_t)0); |
18f335af | 963 | out: |
bad0dcff | 964 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
965 | return status; |
966 | } | |
967 | ||
ffe1137b BF |
968 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
969 | { | |
970 | int i = 1; | |
971 | int buflen = write->wr_buflen; | |
972 | ||
973 | vec[0].iov_base = write->wr_head.iov_base; | |
974 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); | |
975 | buflen -= vec[0].iov_len; | |
976 | ||
977 | while (buflen) { | |
978 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); | |
979 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); | |
980 | buflen -= vec[i].iov_len; | |
981 | i++; | |
982 | } | |
983 | return i; | |
984 | } | |
985 | ||
7191155b | 986 | static __be32 |
ca364317 BF |
987 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
988 | struct nfsd4_write *write) | |
1da177e4 LT |
989 | { |
990 | stateid_t *stateid = &write->wr_stateid; | |
991 | struct file *filp = NULL; | |
b37ad28b | 992 | __be32 status = nfs_ok; |
31dec253 | 993 | unsigned long cnt; |
ffe1137b | 994 | int nvecs; |
1da177e4 LT |
995 | |
996 | /* no need to check permission - this will be done in nfsd_write() */ | |
997 | ||
998 | if (write->wr_offset >= OFFSET_MAX) | |
999 | return nfserr_inval; | |
1000 | ||
1001 | nfs4_lock_state(); | |
5ccb0066 SK |
1002 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
1003 | cstate, stateid, WR_STATE, &filp); | |
375c5547 | 1004 | if (status) { |
b022032e | 1005 | nfs4_unlock_state(); |
375c5547 BF |
1006 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
1007 | return status; | |
1008 | } | |
b022032e | 1009 | if (filp) |
1010 | get_file(filp); | |
1011 | nfs4_unlock_state(); | |
375c5547 | 1012 | |
31dec253 | 1013 | cnt = write->wr_buflen; |
1da177e4 | 1014 | write->wr_how_written = write->wr_stable_how; |
b9c0ef85 | 1015 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
1da177e4 | 1016 | |
ffe1137b BF |
1017 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
1018 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); | |
1019 | ||
ca364317 | 1020 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
ffe1137b | 1021 | write->wr_offset, rqstp->rq_vec, nvecs, |
31dec253 | 1022 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
1023 | if (filp) |
1024 | fput(filp); | |
1da177e4 | 1025 | |
31dec253 DS |
1026 | write->wr_bytes_written = cnt; |
1027 | ||
1da177e4 | 1028 | return status; |
1da177e4 LT |
1029 | } |
1030 | ||
1031 | /* This routine never returns NFS_OK! If there are no other errors, it | |
1032 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
1033 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
1034 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
1035 | */ | |
b37ad28b | 1036 | static __be32 |
c954e2a5 | 1037 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 1038 | struct nfsd4_verify *verify) |
1da177e4 | 1039 | { |
2ebbc012 | 1040 | __be32 *buf, *p; |
1da177e4 | 1041 | int count; |
b37ad28b | 1042 | __be32 status; |
1da177e4 | 1043 | |
8837abca | 1044 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
1045 | if (status) |
1046 | return status; | |
1047 | ||
3c8e0316 YZ |
1048 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
1049 | if (status) | |
1050 | return status; | |
1051 | ||
1da177e4 LT |
1052 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
1053 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
1054 | return nfserr_inval; | |
1055 | if (verify->ve_attrlen & 3) | |
1056 | return nfserr_inval; | |
1057 | ||
1058 | /* count in words: | |
1059 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
1060 | */ | |
1061 | count = 4 + (verify->ve_attrlen >> 2); | |
1062 | buf = kmalloc(count << 2, GFP_KERNEL); | |
1063 | if (!buf) | |
3e772463 | 1064 | return nfserr_jukebox; |
1da177e4 | 1065 | |
84822d0b | 1066 | p = buf; |
ca364317 BF |
1067 | status = nfsd4_encode_fattr(&cstate->current_fh, |
1068 | cstate->current_fh.fh_export, | |
84822d0b BF |
1069 | cstate->current_fh.fh_dentry, &p, |
1070 | count, verify->ve_bmval, | |
406a7ea9 | 1071 | rqstp, 0); |
1da177e4 LT |
1072 | |
1073 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
84822d0b | 1074 | if (status == nfserr_resource) |
1da177e4 LT |
1075 | status = nfserr_not_same; |
1076 | if (status) | |
1077 | goto out_kfree; | |
1078 | ||
95ec28cd BH |
1079 | /* skip bitmap */ |
1080 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
1081 | status = nfserr_not_same; |
1082 | if (ntohl(*p++) != verify->ve_attrlen) | |
1083 | goto out_kfree; | |
1084 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
1085 | status = nfserr_same; | |
1086 | ||
1087 | out_kfree: | |
1088 | kfree(buf); | |
1089 | return status; | |
1090 | } | |
1091 | ||
c954e2a5 BF |
1092 | static __be32 |
1093 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
1094 | struct nfsd4_verify *verify) | |
1095 | { | |
1096 | __be32 status; | |
1097 | ||
1098 | status = _nfsd4_verify(rqstp, cstate, verify); | |
1099 | return status == nfserr_not_same ? nfs_ok : status; | |
1100 | } | |
1101 | ||
1102 | static __be32 | |
1103 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
1104 | struct nfsd4_verify *verify) | |
1105 | { | |
1106 | __be32 status; | |
1107 | ||
1108 | status = _nfsd4_verify(rqstp, cstate, verify); | |
1109 | return status == nfserr_same ? nfs_ok : status; | |
1110 | } | |
1111 | ||
1da177e4 LT |
1112 | /* |
1113 | * NULL call. | |
1114 | */ | |
7111c66e | 1115 | static __be32 |
1da177e4 LT |
1116 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
1117 | { | |
1118 | return nfs_ok; | |
1119 | } | |
1120 | ||
e2b20950 SA |
1121 | static inline void nfsd4_increment_op_stats(u32 opnum) |
1122 | { | |
1123 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1124 | nfsdstats.nfs4_opcount[opnum]++; | |
1125 | } | |
1126 | ||
b591480b BF |
1127 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1128 | void *); | |
58e7b33a | 1129 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
8b70484c TM |
1130 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
1131 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); | |
58e7b33a | 1132 | |
f9bb94c4 AA |
1133 | enum nfsd4_op_flags { |
1134 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1135 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1136 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1137 | /* For rfc 5661 section 2.6.3.1.1: */ |
1138 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1139 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1140 | /* |
c856694e BF |
1141 | * These are the ops whose result size we estimate before |
1142 | * encoding, to avoid performing an op then not being able to | |
1143 | * respond or cache a response. This includes writes and setattrs | |
1144 | * as well as the operations usually called "nonidempotent": | |
1145 | */ | |
1146 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1147 | /* | |
1148 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1149 | * We use the DRC for compounds containing non-idempotent |
1150 | * operations, *except* those that are 4.1-specific (since | |
1151 | * sessions provide their own EOS), and except for stateful | |
1152 | * operations other than setclientid and setclientid_confirm | |
1153 | * (since sequence numbers provide EOS for open, lock, etc in | |
1154 | * the v4.0 case). | |
1155 | */ | |
c856694e | 1156 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1157 | /* |
1158 | * These are ops which clear current state id. | |
1159 | */ | |
1160 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1161 | }; |
1162 | ||
1163 | struct nfsd4_operation { | |
1164 | nfsd4op_func op_func; | |
1165 | u32 op_flags; | |
1166 | char *op_name; | |
58e7b33a MJ |
1167 | /* Try to get response size before operation */ |
1168 | nfsd4op_rsize op_rsize_bop; | |
24ff99c6 BS |
1169 | stateid_getter op_get_currentstateid; |
1170 | stateid_setter op_set_currentstateid; | |
b591480b BF |
1171 | }; |
1172 | ||
1173 | static struct nfsd4_operation nfsd4_ops[]; | |
1174 | ||
8f199b82 | 1175 | #ifdef NFSD_DEBUG |
f1c7f79b | 1176 | static const char *nfsd4_op_name(unsigned opnum); |
8f199b82 | 1177 | #endif |
b001a1b6 | 1178 | |
f9bb94c4 | 1179 | /* |
57716355 | 1180 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1181 | * |
57716355 BF |
1182 | * Also note, enforced elsewhere: |
1183 | * - SEQUENCE other than as first op results in | |
1184 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1185 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1186 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1187 | * - DESTROY_SESSION must be the final operation in a compound, if |
1188 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1189 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1190 | */ |
57716355 | 1191 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1192 | { |
57716355 BF |
1193 | struct nfsd4_op *op = &args->ops[0]; |
1194 | ||
1195 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1196 | if (args->minorversion == 0) | |
1197 | return nfs_ok; | |
1198 | /* This is weird, but OK, not our problem: */ | |
1199 | if (args->opcnt == 0) | |
1200 | return nfs_ok; | |
1201 | if (op->status == nfserr_op_illegal) | |
1202 | return nfs_ok; | |
1203 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1204 | return nfserr_op_not_in_session; | |
1205 | if (op->opnum == OP_SEQUENCE) | |
1206 | return nfs_ok; | |
1207 | if (args->opcnt != 1) | |
1208 | return nfserr_not_only_op; | |
1209 | return nfs_ok; | |
f9bb94c4 AA |
1210 | } |
1211 | ||
22b03214 BF |
1212 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1213 | { | |
1214 | return &nfsd4_ops[op->opnum]; | |
1215 | } | |
1216 | ||
1091006c BF |
1217 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1218 | { | |
c856694e | 1219 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1220 | } |
1221 | ||
68d93184 BF |
1222 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1223 | { | |
1224 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1225 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1226 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1227 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1228 | struct nfsd4_operation *thisd; | |
1229 | struct nfsd4_operation *nextd; | |
1230 | ||
1231 | thisd = OPDESC(this); | |
1232 | /* | |
1233 | * Most ops check wronsec on our own; only the putfh-like ops | |
1234 | * have special rules. | |
1235 | */ | |
1236 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1237 | return false; | |
1238 | /* | |
1239 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1240 | * put-filehandle operation if we're not going to use the | |
1241 | * result: | |
1242 | */ | |
1243 | if (argp->opcnt == resp->opcnt) | |
1244 | return false; | |
1245 | ||
1246 | nextd = OPDESC(next); | |
1247 | /* | |
1248 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1249 | * errors themselves as necessary; others should check for them | |
1250 | * now: | |
1251 | */ | |
1252 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1253 | } | |
1254 | ||
1da177e4 LT |
1255 | /* |
1256 | * COMPOUND call. | |
1257 | */ | |
7111c66e | 1258 | static __be32 |
1da177e4 LT |
1259 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1260 | struct nfsd4_compoundargs *args, | |
1261 | struct nfsd4_compoundres *resp) | |
1262 | { | |
1263 | struct nfsd4_op *op; | |
b591480b | 1264 | struct nfsd4_operation *opdesc; |
e354d571 | 1265 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1266 | int slack_bytes; |
58e7b33a | 1267 | u32 plen = 0; |
b37ad28b | 1268 | __be32 status; |
1da177e4 | 1269 | |
1da177e4 | 1270 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1271 | resp->p = rqstp->rq_res.head[0].iov_base + |
1272 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1273 | resp->tagp = resp->p; |
1274 | /* reserve space for: taglen, tag, and opcnt */ | |
1275 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1276 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1277 | resp->taglen = args->taglen; | |
1278 | resp->tag = args->tag; | |
1279 | resp->opcnt = 0; | |
1280 | resp->rqstp = rqstp; | |
d87a8ade | 1281 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1282 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1283 | resp->cstate.session = NULL; |
e354d571 AA |
1284 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1285 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1286 | /* |
1287 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1288 | * too hard to avoid non-idempotency problems. | |
1289 | */ | |
1290 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1291 | |
1292 | /* | |
1293 | * According to RFC3010, this takes precedence over all other errors. | |
1294 | */ | |
1295 | status = nfserr_minor_vers_mismatch; | |
35f7a14f | 1296 | if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0) |
1da177e4 LT |
1297 | goto out; |
1298 | ||
57716355 BF |
1299 | status = nfs41_check_op_ordering(args); |
1300 | if (status) { | |
f9bb94c4 | 1301 | op = &args->ops[0]; |
57716355 | 1302 | op->status = status; |
f9bb94c4 AA |
1303 | goto encode_op; |
1304 | } | |
1305 | ||
1da177e4 LT |
1306 | while (!status && resp->opcnt < args->opcnt) { |
1307 | op = &args->ops[resp->opcnt++]; | |
1308 | ||
b001a1b6 BH |
1309 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1310 | resp->opcnt, args->opcnt, op->opnum, | |
1311 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1312 | /* |
1313 | * The XDR decode routines may have pre-set op->status; | |
1314 | * for example, if there is a miscellaneous XDR error | |
1315 | * it will be set to nfserr_bad_xdr. | |
1316 | */ | |
9d313b17 BF |
1317 | if (op->status) { |
1318 | if (op->opnum == OP_OPEN) | |
1319 | op->status = nfsd4_open_omfg(rqstp, cstate, op); | |
1da177e4 | 1320 | goto encode_op; |
9d313b17 | 1321 | } |
1da177e4 LT |
1322 | |
1323 | /* We must be able to encode a successful response to | |
1324 | * this operation, with enough room left over to encode a | |
1325 | * failed response to the next operation. If we don't | |
1326 | * have enough room, fail with ERR_RESOURCE. | |
1327 | */ | |
e5710199 BF |
1328 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1329 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1330 | + COMPOUND_ERR_SLACK_SPACE) { | |
1331 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1332 | op->status = nfserr_resource; |
1333 | goto encode_op; | |
1334 | } | |
1335 | ||
22b03214 | 1336 | opdesc = OPDESC(op); |
b591480b | 1337 | |
ca364317 | 1338 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1339 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1340 | op->status = nfserr_nofilehandle; |
1341 | goto encode_op; | |
1342 | } | |
eeac294e BF |
1343 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1344 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1345 | op->status = nfserr_moved; |
1da177e4 LT |
1346 | goto encode_op; |
1347 | } | |
b591480b | 1348 | |
58e7b33a MJ |
1349 | /* If op is non-idempotent */ |
1350 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1351 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1352 | op->status = nfsd4_check_resp_size(resp, plen); | |
1353 | } | |
1354 | ||
1355 | if (op->status) | |
1356 | goto encode_op; | |
1357 | ||
b600de7a BF |
1358 | if (opdesc->op_get_currentstateid) |
1359 | opdesc->op_get_currentstateid(cstate, &op->u); | |
1360 | op->status = opdesc->op_func(rqstp, cstate, &op->u); | |
1da177e4 | 1361 | |
8b70484c TM |
1362 | if (!op->status) { |
1363 | if (opdesc->op_set_currentstateid) | |
1364 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1365 | ||
1366 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
37c593c5 | 1367 | clear_current_stateid(cstate); |
8b70484c TM |
1368 | |
1369 | if (need_wrongsec_check(rqstp)) | |
1370 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1371 | } | |
68d93184 | 1372 | |
1da177e4 | 1373 | encode_op: |
49557cc7 | 1374 | /* Only from SEQUENCE */ |
da3846a2 AA |
1375 | if (resp->cstate.status == nfserr_replay_cache) { |
1376 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1377 | status = op->status; |
da3846a2 AA |
1378 | goto out; |
1379 | } | |
a90b061c | 1380 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1381 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1382 | nfsd4_encode_replay(resp, op); |
1383 | status = op->status = op->replay->rp_status; | |
1384 | } else { | |
1385 | nfsd4_encode_operation(resp, op); | |
1386 | status = op->status; | |
1387 | } | |
0407717d BH |
1388 | |
1389 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1390 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1391 | be32_to_cpu(status)); | |
1392 | ||
a4f1706a | 1393 | if (cstate->replay_owner) { |
5ec094c1 | 1394 | nfs4_unlock_state(); |
a4f1706a | 1395 | cstate->replay_owner = NULL; |
1da177e4 | 1396 | } |
7e06b7f9 N |
1397 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1398 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1399 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1400 | |
1401 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1402 | } |
1403 | ||
da3846a2 | 1404 | resp->cstate.status = status; |
e354d571 AA |
1405 | fh_put(&resp->cstate.current_fh); |
1406 | fh_put(&resp->cstate.save_fh); | |
1407 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1408 | out: |
2f425878 AA |
1409 | /* Reset deferral mechanism for RPC deferrals */ |
1410 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1411 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1412 | return status; |
1413 | } | |
1414 | ||
58e7b33a MJ |
1415 | #define op_encode_hdr_size (2) |
1416 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1417 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1418 | #define op_encode_change_info_maxsz (5) | |
1419 | #define nfs4_fattr_bitmap_maxsz (4) | |
1420 | ||
1421 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1422 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1423 | ||
1424 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1425 | ||
1426 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1427 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1428 | op_encode_ace_maxsz) | |
1429 | ||
1430 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1431 | ||
1432 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1433 | { | |
1434 | return (op_encode_hdr_size) * sizeof(__be32); | |
1435 | } | |
1436 | ||
1437 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1438 | { | |
1439 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1440 | } | |
1441 | ||
1442 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1443 | { | |
1444 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1445 | } | |
1446 | ||
1447 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1448 | { | |
1449 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1450 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1451 | } | |
1452 | ||
1453 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1454 | { | |
1455 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1456 | * sizeof(__be32); | |
1457 | } | |
1458 | ||
1459 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1460 | { | |
1461 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1462 | * sizeof(__be32); | |
1463 | } | |
1464 | ||
1465 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1466 | { | |
1467 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1468 | + op_encode_change_info_maxsz + 1 | |
1469 | + nfs4_fattr_bitmap_maxsz | |
1470 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1471 | } | |
1472 | ||
1473 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1474 | { | |
1475 | u32 maxcount = 0, rlen = 0; | |
1476 | ||
1477 | maxcount = svc_max_payload(rqstp); | |
1478 | rlen = op->u.read.rd_length; | |
1479 | ||
1480 | if (rlen > maxcount) | |
1481 | rlen = maxcount; | |
1482 | ||
1483 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1484 | } | |
1485 | ||
1486 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1487 | { | |
1488 | u32 rlen = op->u.readdir.rd_maxcount; | |
1489 | ||
1490 | if (rlen > PAGE_SIZE) | |
1491 | rlen = PAGE_SIZE; | |
1492 | ||
1493 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1494 | * sizeof(__be32) + rlen; | |
1495 | } | |
1496 | ||
1497 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1498 | { | |
1499 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1500 | * sizeof(__be32); | |
1501 | } | |
1502 | ||
1503 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1504 | { | |
1505 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1506 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1507 | } | |
1508 | ||
1509 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1510 | { | |
1511 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1512 | } | |
1513 | ||
1514 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1515 | { | |
1516 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1517 | } | |
1518 | ||
1519 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1520 | { | |
1521 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1522 | } | |
1523 | ||
1524 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1525 | { | |
1526 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
58cd57bf | 1527 | 1 + 1 + 2 + /* eir_flags, spr_how, spo_must_enforce & _allow */\ |
58e7b33a MJ |
1528 | 2 + /*eir_server_owner.so_minor_id */\ |
1529 | /* eir_server_owner.so_major_id<> */\ | |
1530 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1531 | /* eir_server_scope<> */\ | |
1532 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1533 | 1 + /* eir_server_impl_id array length */\ | |
1534 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1535 | } | |
1536 | ||
1537 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1538 | { | |
1539 | return (op_encode_hdr_size + \ | |
1540 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1541 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1542 | } | |
1543 | ||
1544 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1545 | { | |
1546 | return (op_encode_hdr_size + \ | |
1547 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1548 | 2 + /* csr_sequence, csr_flags */\ | |
1549 | op_encode_channel_attrs_maxsz + \ | |
1550 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1551 | } | |
1552 | ||
20766016 | 1553 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1554 | [OP_ACCESS] = { |
1555 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1556 | .op_name = "OP_ACCESS", |
b591480b BF |
1557 | }, |
1558 | [OP_CLOSE] = { | |
1559 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1560 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1561 | .op_name = "OP_CLOSE", |
58e7b33a | 1562 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
8b70484c TM |
1563 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
1564 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, | |
b591480b BF |
1565 | }, |
1566 | [OP_COMMIT] = { | |
1567 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1568 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1569 | .op_name = "OP_COMMIT", |
58e7b33a | 1570 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1571 | }, |
1572 | [OP_CREATE] = { | |
1573 | .op_func = (nfsd4op_func)nfsd4_create, | |
d1471053 | 1574 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 1575 | .op_name = "OP_CREATE", |
58e7b33a | 1576 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1577 | }, |
1578 | [OP_DELEGRETURN] = { | |
1579 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1580 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1581 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1582 | .op_rsize_bop = nfsd4_only_status_rsize, |
9428fe1a | 1583 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
b591480b BF |
1584 | }, |
1585 | [OP_GETATTR] = { | |
1586 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1587 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1588 | .op_name = "OP_GETATTR", |
b591480b BF |
1589 | }, |
1590 | [OP_GETFH] = { | |
1591 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1592 | .op_name = "OP_GETFH", |
b591480b BF |
1593 | }, |
1594 | [OP_LINK] = { | |
1595 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1596 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1597 | | OP_CACHEME, | |
b001a1b6 | 1598 | .op_name = "OP_LINK", |
58e7b33a | 1599 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1600 | }, |
1601 | [OP_LOCK] = { | |
1602 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1603 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1604 | .op_name = "OP_LOCK", |
58e7b33a | 1605 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
62cd4a59 | 1606 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
b591480b BF |
1607 | }, |
1608 | [OP_LOCKT] = { | |
1609 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1610 | .op_name = "OP_LOCKT", |
b591480b BF |
1611 | }, |
1612 | [OP_LOCKU] = { | |
1613 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1614 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1615 | .op_name = "OP_LOCKU", |
58e7b33a | 1616 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
62cd4a59 | 1617 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
b591480b BF |
1618 | }, |
1619 | [OP_LOOKUP] = { | |
1620 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
d1471053 | 1621 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1622 | .op_name = "OP_LOOKUP", |
b591480b BF |
1623 | }, |
1624 | [OP_LOOKUPP] = { | |
1625 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
d1471053 | 1626 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1627 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1628 | }, |
1629 | [OP_NVERIFY] = { | |
1630 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1631 | .op_name = "OP_NVERIFY", |
b591480b BF |
1632 | }, |
1633 | [OP_OPEN] = { | |
1634 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1635 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1636 | .op_name = "OP_OPEN", |
58e7b33a | 1637 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
8b70484c | 1638 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
b591480b BF |
1639 | }, |
1640 | [OP_OPEN_CONFIRM] = { | |
1641 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1642 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1643 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1644 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1645 | }, |
1646 | [OP_OPEN_DOWNGRADE] = { | |
1647 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1648 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1649 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1650 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
9428fe1a TM |
1651 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
1652 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, | |
b591480b BF |
1653 | }, |
1654 | [OP_PUTFH] = { | |
1655 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1656 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1657 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1658 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1659 | .op_name = "OP_PUTFH", |
58e7b33a | 1660 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1661 | }, |
eeac294e | 1662 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1663 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1664 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1665 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1666 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1667 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1668 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1669 | }, |
b591480b BF |
1670 | [OP_PUTROOTFH] = { |
1671 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1672 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1673 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1674 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1675 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1676 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1677 | }, |
1678 | [OP_READ] = { | |
1679 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1680 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1681 | .op_name = "OP_READ", |
58e7b33a | 1682 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
30813e27 | 1683 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
b591480b BF |
1684 | }, |
1685 | [OP_READDIR] = { | |
1686 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1687 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1688 | .op_name = "OP_READDIR", |
58e7b33a | 1689 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1690 | }, |
1691 | [OP_READLINK] = { | |
1692 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1693 | .op_name = "OP_READLINK", |
b591480b BF |
1694 | }, |
1695 | [OP_REMOVE] = { | |
1696 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1697 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1698 | .op_name = "OP_REMOVE", |
58e7b33a | 1699 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1700 | }, |
1701 | [OP_RENAME] = { | |
1702 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1703 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1704 | .op_name = "OP_RENAME", |
58e7b33a | 1705 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1706 | }, |
1707 | [OP_RENEW] = { | |
1708 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1709 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1710 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1711 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1712 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1713 | ||
b591480b BF |
1714 | }, |
1715 | [OP_RESTOREFH] = { | |
1716 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1717 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1718 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1719 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1720 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1721 | }, |
1722 | [OP_SAVEFH] = { | |
1723 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1724 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1725 | .op_name = "OP_SAVEFH", |
58e7b33a | 1726 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1727 | }, |
dcb488a3 AA |
1728 | [OP_SECINFO] = { |
1729 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1730 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1731 | .op_name = "OP_SECINFO", |
dcb488a3 | 1732 | }, |
b591480b BF |
1733 | [OP_SETATTR] = { |
1734 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1735 | .op_name = "OP_SETATTR", |
c856694e | 1736 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1737 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
1e97b519 | 1738 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
b591480b BF |
1739 | }, |
1740 | [OP_SETCLIENTID] = { | |
1741 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1742 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1743 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1744 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1745 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1746 | }, |
1747 | [OP_SETCLIENTID_CONFIRM] = { | |
1748 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1749 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1750 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1751 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1752 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1753 | }, |
1754 | [OP_VERIFY] = { | |
1755 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1756 | .op_name = "OP_VERIFY", |
b591480b BF |
1757 | }, |
1758 | [OP_WRITE] = { | |
1759 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1760 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1761 | .op_name = "OP_WRITE", |
58e7b33a | 1762 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
30813e27 | 1763 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
b591480b BF |
1764 | }, |
1765 | [OP_RELEASE_LOCKOWNER] = { | |
1766 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1767 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1768 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1769 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1770 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1771 | }, |
069b6ad4 AA |
1772 | |
1773 | /* NFSv4.1 operations */ | |
1774 | [OP_EXCHANGE_ID] = { | |
1775 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1776 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1777 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1778 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1779 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1780 | }, |
cb73a9f4 BF |
1781 | [OP_BACKCHANNEL_CTL] = { |
1782 | .op_func = (nfsd4op_func)nfsd4_backchannel_ctl, | |
1783 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, | |
1784 | .op_name = "OP_BACKCHANNEL_CTL", | |
1785 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, | |
1786 | }, | |
1d1bc8f2 BF |
1787 | [OP_BIND_CONN_TO_SESSION] = { |
1788 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1789 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1790 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1791 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1792 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1793 | }, |
069b6ad4 AA |
1794 | [OP_CREATE_SESSION] = { |
1795 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1796 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1797 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1798 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1799 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1800 | }, |
1801 | [OP_DESTROY_SESSION] = { | |
1802 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1803 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1804 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1805 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1806 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1807 | }, |
1808 | [OP_SEQUENCE] = { | |
1809 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1810 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1811 | .op_name = "OP_SEQUENCE", |
1812 | }, | |
094b5d74 | 1813 | [OP_DESTROY_CLIENTID] = { |
345c2842 | 1814 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
58e7b33a MJ |
1815 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1816 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1817 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1818 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1819 | }, |
4dc6ec00 BF |
1820 | [OP_RECLAIM_COMPLETE] = { |
1821 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1822 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1823 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1824 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1825 | }, |
04f4ad16 BF |
1826 | [OP_SECINFO_NO_NAME] = { |
1827 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1828 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1829 | .op_name = "OP_SECINFO_NO_NAME", |
1830 | }, | |
17456804 BS |
1831 | [OP_TEST_STATEID] = { |
1832 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1833 | .op_flags = ALLOWED_WITHOUT_FH, | |
1834 | .op_name = "OP_TEST_STATEID", | |
1835 | }, | |
e1ca12df BS |
1836 | [OP_FREE_STATEID] = { |
1837 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1838 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1839 | .op_name = "OP_FREE_STATEID", |
a1dc6955 | 1840 | .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid, |
58e7b33a | 1841 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1842 | }, |
b591480b BF |
1843 | }; |
1844 | ||
8f199b82 | 1845 | #ifdef NFSD_DEBUG |
f1c7f79b | 1846 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1847 | { |
1848 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1849 | return nfsd4_ops[opnum].op_name; | |
1850 | return "unknown_operation"; | |
1851 | } | |
8f199b82 | 1852 | #endif |
b001a1b6 | 1853 | |
1da177e4 | 1854 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1855 | struct nfsd4_voidargs { int dummy; }; |
1856 | ||
1da177e4 | 1857 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1858 | [NFSPROC4_NULL] = { |
1859 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1860 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1861 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1862 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1863 | .pc_cachetype = RC_NOCACHE, | |
1864 | .pc_xdrressize = 1, | |
1865 | }, | |
1866 | [NFSPROC4_COMPOUND] = { | |
1867 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1868 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1869 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1870 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1871 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1872 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1873 | .pc_cachetype = RC_NOCACHE, |
1874 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1875 | }, | |
1da177e4 LT |
1876 | }; |
1877 | ||
1878 | struct svc_version nfsd_version4 = { | |
1879 | .vs_vers = 4, | |
1880 | .vs_nproc = 2, | |
1881 | .vs_proc = nfsd_procedures4, | |
1882 | .vs_dispatch = nfsd_dispatch, | |
1883 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1884 | }; | |
1885 | ||
1886 | /* | |
1887 | * Local variables: | |
1888 | * c-basic-offset: 8 | |
1889 | * End: | |
1890 | */ |