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 LT |
44 | |
45 | #define NFSDDBG_FACILITY NFSDDBG_PROC | |
46 | ||
3c8e0316 YZ |
47 | static u32 nfsd_attrmask[] = { |
48 | NFSD_WRITEABLE_ATTRS_WORD0, | |
49 | NFSD_WRITEABLE_ATTRS_WORD1, | |
50 | NFSD_WRITEABLE_ATTRS_WORD2 | |
51 | }; | |
52 | ||
53 | static u32 nfsd41_ex_attrmask[] = { | |
54 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
55 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
56 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
57 | }; | |
58 | ||
59 | static __be32 | |
60 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
61 | u32 *bmval, u32 *writable) | |
62 | { | |
63 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
3c8e0316 YZ |
64 | |
65 | /* | |
66 | * Check about attributes are supported by the NFSv4 server or not. | |
67 | * According to spec, unsupported attributes return ERR_ATTRNOTSUPP. | |
68 | */ | |
69 | if ((bmval[0] & ~nfsd_suppattrs0(cstate->minorversion)) || | |
70 | (bmval[1] & ~nfsd_suppattrs1(cstate->minorversion)) || | |
71 | (bmval[2] & ~nfsd_suppattrs2(cstate->minorversion))) | |
72 | return nfserr_attrnotsupp; | |
73 | ||
74 | /* | |
a06b1261 | 75 | * Check FATTR4_WORD0_ACL can be supported |
3c8e0316 YZ |
76 | * in current environment or not. |
77 | */ | |
78 | if (bmval[0] & FATTR4_WORD0_ACL) { | |
79 | if (!IS_POSIXACL(dentry->d_inode)) | |
80 | return nfserr_attrnotsupp; | |
81 | } | |
3c8e0316 YZ |
82 | |
83 | /* | |
84 | * According to spec, read-only attributes return ERR_INVAL. | |
85 | */ | |
86 | if (writable) { | |
87 | if ((bmval[0] & ~writable[0]) || (bmval[1] & ~writable[1]) || | |
88 | (bmval[2] & ~writable[2])) | |
89 | return nfserr_inval; | |
90 | } | |
91 | ||
92 | return nfs_ok; | |
93 | } | |
94 | ||
95 | static __be32 | |
96 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
97 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
98 | { | |
99 | __be32 status = nfs_ok; | |
100 | ||
101 | if (open->op_create == NFS4_OPEN_CREATE) { | |
102 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
103 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
104 | status = check_attr_support(rqstp, cstate, | |
105 | open->op_bmval, nfsd_attrmask); | |
106 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
107 | status = check_attr_support(rqstp, cstate, | |
108 | open->op_bmval, nfsd41_ex_attrmask); | |
109 | } | |
110 | ||
111 | return status; | |
112 | } | |
113 | ||
9208faf2 YZ |
114 | static int |
115 | is_create_with_attrs(struct nfsd4_open *open) | |
116 | { | |
117 | return open->op_create == NFS4_OPEN_CREATE | |
118 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
119 | || open->op_createmode == NFS4_CREATE_GUARDED | |
120 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
121 | } | |
122 | ||
123 | /* | |
124 | * if error occurs when setting the acl, just clear the acl bit | |
125 | * in the returned attr bitmap. | |
126 | */ | |
127 | static void | |
128 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
129 | struct nfs4_acl *acl, u32 *bmval) | |
130 | { | |
131 | __be32 status; | |
132 | ||
133 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
134 | if (status) | |
135 | /* | |
136 | * We should probably fail the whole open at this point, | |
137 | * but we've already created the file, so it's too late; | |
138 | * So this seems the least of evils: | |
139 | */ | |
140 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
141 | } | |
142 | ||
1da177e4 LT |
143 | static inline void |
144 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
145 | { | |
146 | fh_put(dst); | |
147 | dget(src->fh_dentry); | |
148 | if (src->fh_export) | |
149 | cache_get(&src->fh_export->h); | |
150 | *dst = *src; | |
151 | } | |
152 | ||
b37ad28b | 153 | static __be32 |
dc730e17 | 154 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 155 | { |
b37ad28b | 156 | __be32 status; |
1da177e4 LT |
157 | |
158 | if (open->op_truncate && | |
159 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
160 | return nfserr_inval; | |
161 | ||
a043226b BF |
162 | accmode |= NFSD_MAY_READ_IF_EXEC; |
163 | ||
1da177e4 | 164 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 165 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 166 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 167 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 168 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 169 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
170 | |
171 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
172 | ||
173 | return status; | |
174 | } | |
175 | ||
aadab6c6 BF |
176 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
177 | { | |
178 | umode_t mode = fh->fh_dentry->d_inode->i_mode; | |
179 | ||
180 | if (S_ISREG(mode)) | |
181 | return nfs_ok; | |
182 | if (S_ISDIR(mode)) | |
183 | return nfserr_isdir; | |
184 | /* | |
185 | * Using err_symlink as our catch-all case may look odd; but | |
186 | * there's no other obvious error for this case in 4.0, and we | |
187 | * happen to know that it will cause the linux v4 client to do | |
188 | * the right thing on attempts to open something other than a | |
189 | * regular file. | |
190 | */ | |
191 | return nfserr_symlink; | |
192 | } | |
193 | ||
bbc9c36c BF |
194 | static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh) |
195 | { | |
196 | if (nfsd4_has_session(cstate)) | |
197 | return; | |
198 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, | |
199 | &resfh->fh_handle); | |
200 | } | |
201 | ||
b37ad28b | 202 | static __be32 |
bbc9c36c | 203 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
1da177e4 | 204 | { |
bbc9c36c | 205 | struct svc_fh *current_fh = &cstate->current_fh; |
59deeb9e | 206 | struct svc_fh *resfh; |
7007c90f | 207 | int accmode; |
b37ad28b | 208 | __be32 status; |
1da177e4 | 209 | |
59deeb9e BF |
210 | resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
211 | if (!resfh) | |
212 | return nfserr_jukebox; | |
213 | fh_init(resfh, NFS4_FHSIZE); | |
1da177e4 LT |
214 | open->op_truncate = 0; |
215 | ||
216 | if (open->op_create) { | |
79fb54ab BH |
217 | /* FIXME: check session persistence and pnfs flags. |
218 | * The nfsv4.1 spec requires the following semantics: | |
219 | * | |
220 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
221 | * Reply Cache | server | | | |
222 | * -------------+--------+-----------------+-------------------- | |
223 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
224 | * | | | (SHOULD) | |
225 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
226 | * | | | (SHOULD NOT) | |
227 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
228 | * yes | no | GUARDED4 | GUARDED4 | |
229 | * yes | yes | GUARDED4 | GUARDED4 | |
230 | */ | |
231 | ||
1da177e4 LT |
232 | /* |
233 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 234 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 235 | */ |
ac6721a1 | 236 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 | 237 | open->op_fname.len, &open->op_iattr, |
59deeb9e | 238 | resfh, open->op_createmode, |
749997e5 | 239 | (u32 *)open->op_verf.data, |
856121b2 | 240 | &open->op_truncate, &open->op_created); |
749997e5 | 241 | |
99f88726 BF |
242 | /* |
243 | * Following rfc 3530 14.2.16, use the returned bitmask | |
244 | * to indicate which attributes we used to store the | |
245 | * verifier: | |
749997e5 JL |
246 | */ |
247 | if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) | |
99f88726 | 248 | open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | |
9dc4e6c4 | 249 | FATTR4_WORD1_TIME_MODIFY); |
af85852d | 250 | } else { |
1da177e4 | 251 | status = nfsd_lookup(rqstp, current_fh, |
59deeb9e | 252 | open->op_fname.data, open->op_fname.len, resfh); |
1da177e4 LT |
253 | fh_unlock(current_fh); |
254 | } | |
9dc4e6c4 BF |
255 | if (status) |
256 | goto out; | |
257 | status = nfsd_check_obj_isreg(resfh); | |
af85852d BF |
258 | if (status) |
259 | goto out; | |
1da177e4 | 260 | |
9208faf2 | 261 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
59deeb9e | 262 | do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); |
9208faf2 | 263 | |
bbc9c36c | 264 | nfsd4_set_open_owner_reply_cache(cstate, open, resfh); |
7007c90f NB |
265 | accmode = NFSD_MAY_NOP; |
266 | if (open->op_created) | |
267 | accmode |= NFSD_MAY_OWNER_OVERRIDE; | |
268 | status = do_open_permission(rqstp, resfh, open, accmode); | |
41fd1e42 | 269 | set_change_info(&open->op_cinfo, current_fh); |
59deeb9e | 270 | fh_dup2(current_fh, resfh); |
af85852d | 271 | out: |
59deeb9e BF |
272 | fh_put(resfh); |
273 | kfree(resfh); | |
1da177e4 LT |
274 | return status; |
275 | } | |
276 | ||
b37ad28b | 277 | static __be32 |
bbc9c36c | 278 | do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
1da177e4 | 279 | { |
bbc9c36c | 280 | struct svc_fh *current_fh = &cstate->current_fh; |
b37ad28b | 281 | __be32 status; |
1da177e4 | 282 | |
1da177e4 LT |
283 | /* We don't know the target directory, and therefore can not |
284 | * set the change info | |
285 | */ | |
286 | ||
287 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
288 | ||
bbc9c36c | 289 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
1da177e4 LT |
290 | |
291 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
292 | (open->op_iattr.ia_size == 0); | |
293 | ||
8837abca MS |
294 | status = do_open_permission(rqstp, current_fh, open, |
295 | NFSD_MAY_OWNER_OVERRIDE); | |
1da177e4 LT |
296 | |
297 | return status; | |
298 | } | |
299 | ||
60adfc50 AA |
300 | static void |
301 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
302 | { | |
303 | struct nfsd4_sessionid *sid = | |
304 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
305 | ||
306 | clid->cl_boot = sid->clientid.cl_boot; | |
307 | clid->cl_id = sid->clientid.cl_id; | |
308 | } | |
1da177e4 | 309 | |
7191155b | 310 | static __be32 |
ca364317 | 311 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
a4f1706a | 312 | struct nfsd4_open *open) |
1da177e4 | 313 | { |
b37ad28b | 314 | __be32 status; |
6668958f | 315 | struct nfsd4_compoundres *resp; |
3320fef1 SK |
316 | struct net *net = SVC_NET(rqstp); |
317 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); | |
6668958f | 318 | |
fe0750e5 | 319 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 320 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 321 | open->op_openowner); |
1da177e4 | 322 | |
1da177e4 LT |
323 | /* This check required by spec. */ |
324 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
325 | return nfserr_inval; | |
326 | ||
856121b2 | 327 | open->op_created = 0; |
ab1350b2 MJ |
328 | /* |
329 | * RFC5661 18.51.3 | |
330 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
331 | */ | |
332 | if (nfsd4_has_session(cstate) && | |
a52d726b JL |
333 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
334 | &cstate->session->se_client->cl_flags) && | |
ab1350b2 MJ |
335 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
336 | return nfserr_grace; | |
337 | ||
60adfc50 AA |
338 | if (nfsd4_has_session(cstate)) |
339 | copy_clientid(&open->op_clientid, cstate->session); | |
340 | ||
1da177e4 LT |
341 | nfs4_lock_state(); |
342 | ||
343 | /* check seqid for replay. set nfs4_owner */ | |
6668958f | 344 | resp = rqstp->rq_resp; |
3320fef1 | 345 | status = nfsd4_process_open1(&resp->cstate, open, nn); |
a90b061c | 346 | if (status == nfserr_replay_me) { |
fe0750e5 | 347 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 348 | fh_put(&cstate->current_fh); |
a4773c08 BF |
349 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
350 | &rp->rp_openfh); | |
8837abca | 351 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
352 | if (status) |
353 | dprintk("nfsd4_open: replay failed" | |
354 | " restoring previous filehandle\n"); | |
355 | else | |
a90b061c | 356 | status = nfserr_replay_me; |
1da177e4 LT |
357 | } |
358 | if (status) | |
359 | goto out; | |
9d313b17 BF |
360 | if (open->op_xdr_error) { |
361 | status = open->op_xdr_error; | |
362 | goto out; | |
363 | } | |
fb553c0f | 364 | |
3c8e0316 YZ |
365 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
366 | if (status) | |
367 | goto out; | |
368 | ||
fb553c0f BF |
369 | /* Openowner is now set, so sequence id will get bumped. Now we need |
370 | * these checks before we do any creates: */ | |
cbd0d51a | 371 | status = nfserr_grace; |
3320fef1 | 372 | if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
373 | goto out; |
374 | status = nfserr_no_grace; | |
3320fef1 | 375 | if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 376 | goto out; |
fb553c0f | 377 | |
1da177e4 | 378 | switch (open->op_claim_type) { |
0dd3c192 | 379 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 380 | case NFS4_OPEN_CLAIM_NULL: |
bbc9c36c | 381 | status = do_open_lookup(rqstp, cstate, open); |
1da177e4 LT |
382 | if (status) |
383 | goto out; | |
384 | break; | |
385 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
dad1c067 | 386 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
3320fef1 SK |
387 | status = nfs4_check_open_reclaim(&open->op_clientid, |
388 | cstate->minorversion, | |
389 | nn); | |
0cf99b91 MJ |
390 | if (status) |
391 | goto out; | |
8b289b2c BF |
392 | case NFS4_OPEN_CLAIM_FH: |
393 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
bbc9c36c | 394 | status = do_open_fhandle(rqstp, cstate, open); |
1da177e4 LT |
395 | if (status) |
396 | goto out; | |
397 | break; | |
8b289b2c | 398 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 399 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
dad1c067 | 400 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
2fdada03 | 401 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
402 | open->op_claim_type); |
403 | status = nfserr_notsupp; | |
404 | goto out; | |
405 | default: | |
2fdada03 | 406 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
407 | open->op_claim_type); |
408 | status = nfserr_inval; | |
409 | goto out; | |
410 | } | |
411 | /* | |
412 | * nfsd4_process_open2() does the actual opening of the file. If | |
413 | * successful, it (1) truncates the file if open->op_truncate was | |
414 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
415 | */ | |
ca364317 | 416 | status = nfsd4_process_open2(rqstp, &cstate->current_fh, open); |
856121b2 | 417 | WARN_ON(status && open->op_created); |
1da177e4 | 418 | out: |
d29b20cd | 419 | nfsd4_cleanup_open_state(open, status); |
3d74e6a5 | 420 | if (open->op_openowner && !nfsd4_has_session(cstate)) |
fe0750e5 | 421 | cstate->replay_owner = &open->op_openowner->oo_owner; |
9411b1d4 BF |
422 | nfsd4_bump_seqid(cstate, status); |
423 | if (!cstate->replay_owner) | |
5ec094c1 | 424 | nfs4_unlock_state(); |
1da177e4 LT |
425 | return status; |
426 | } | |
427 | ||
9d313b17 BF |
428 | /* |
429 | * OPEN is the only seqid-mutating operation whose decoding can fail | |
430 | * with a seqid-mutating error (specifically, decoding of user names in | |
431 | * the attributes). Therefore we have to do some processing to look up | |
432 | * the stateowner so that we can bump the seqid. | |
433 | */ | |
434 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) | |
435 | { | |
436 | struct nfsd4_open *open = (struct nfsd4_open *)&op->u; | |
437 | ||
438 | if (!seqid_mutating_err(ntohl(op->status))) | |
439 | return op->status; | |
440 | if (nfsd4_has_session(cstate)) | |
441 | return op->status; | |
442 | open->op_xdr_error = op->status; | |
443 | return nfsd4_open(rqstp, cstate, open); | |
444 | } | |
445 | ||
1da177e4 LT |
446 | /* |
447 | * filehandle-manipulating ops. | |
448 | */ | |
7191155b | 449 | static __be32 |
b591480b BF |
450 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
451 | struct svc_fh **getfh) | |
1da177e4 | 452 | { |
ca364317 | 453 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
454 | return nfserr_nofilehandle; |
455 | ||
ca364317 | 456 | *getfh = &cstate->current_fh; |
1da177e4 LT |
457 | return nfs_ok; |
458 | } | |
459 | ||
7191155b | 460 | static __be32 |
ca364317 BF |
461 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
462 | struct nfsd4_putfh *putfh) | |
1da177e4 | 463 | { |
ca364317 BF |
464 | fh_put(&cstate->current_fh); |
465 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
466 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
467 | putfh->pf_fhlen); | |
68d93184 | 468 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
469 | } |
470 | ||
7191155b | 471 | static __be32 |
b591480b BF |
472 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
473 | void *arg) | |
1da177e4 | 474 | { |
b37ad28b | 475 | __be32 status; |
1da177e4 | 476 | |
ca364317 | 477 | fh_put(&cstate->current_fh); |
df547efb | 478 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
479 | return status; |
480 | } | |
481 | ||
7191155b | 482 | static __be32 |
b591480b BF |
483 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
484 | void *arg) | |
1da177e4 | 485 | { |
ca364317 | 486 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
487 | return nfserr_restorefh; |
488 | ||
ca364317 | 489 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
37c593c5 TM |
490 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
491 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); | |
492 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); | |
493 | } | |
1da177e4 LT |
494 | return nfs_ok; |
495 | } | |
496 | ||
7191155b | 497 | static __be32 |
b591480b BF |
498 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
499 | void *arg) | |
1da177e4 | 500 | { |
ca364317 | 501 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
502 | return nfserr_nofilehandle; |
503 | ||
ca364317 | 504 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
37c593c5 TM |
505 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
506 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); | |
507 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); | |
508 | } | |
1da177e4 LT |
509 | return nfs_ok; |
510 | } | |
511 | ||
512 | /* | |
513 | * misc nfsv4 ops | |
514 | */ | |
7191155b | 515 | static __be32 |
ca364317 BF |
516 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
517 | struct nfsd4_access *access) | |
1da177e4 LT |
518 | { |
519 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) | |
520 | return nfserr_inval; | |
521 | ||
522 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
523 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
524 | &access->ac_supported); | |
1da177e4 LT |
525 | } |
526 | ||
b9c0ef85 | 527 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
ab4684d1 CL |
528 | { |
529 | __be32 verf[2]; | |
b9c0ef85 | 530 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
ab4684d1 | 531 | |
b9c0ef85 SK |
532 | verf[0] = (__be32)nn->nfssvc_boot.tv_sec; |
533 | verf[1] = (__be32)nn->nfssvc_boot.tv_usec; | |
ab4684d1 CL |
534 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
535 | } | |
536 | ||
7191155b | 537 | static __be32 |
ca364317 BF |
538 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
539 | struct nfsd4_commit *commit) | |
1da177e4 | 540 | { |
b9c0ef85 | 541 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
75c096f7 | 542 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 543 | commit->co_count); |
1da177e4 LT |
544 | } |
545 | ||
b37ad28b | 546 | static __be32 |
ca364317 BF |
547 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
548 | struct nfsd4_create *create) | |
1da177e4 LT |
549 | { |
550 | struct svc_fh resfh; | |
b37ad28b | 551 | __be32 status; |
1da177e4 LT |
552 | dev_t rdev; |
553 | ||
554 | fh_init(&resfh, NFS4_FHSIZE); | |
555 | ||
8837abca MS |
556 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, |
557 | NFSD_MAY_CREATE); | |
1da177e4 LT |
558 | if (status) |
559 | return status; | |
560 | ||
3c8e0316 YZ |
561 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
562 | nfsd_attrmask); | |
563 | if (status) | |
564 | return status; | |
565 | ||
1da177e4 LT |
566 | switch (create->cr_type) { |
567 | case NF4LNK: | |
568 | /* ugh! we have to null-terminate the linktext, or | |
569 | * vfs_symlink() will choke. it is always safe to | |
570 | * null-terminate by brute force, since at worst we | |
571 | * will overwrite the first byte of the create namelen | |
572 | * in the XDR buffer, which has already been extracted | |
573 | * during XDR decode. | |
574 | */ | |
575 | create->cr_linkname[create->cr_linklen] = 0; | |
576 | ||
ca364317 BF |
577 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
578 | create->cr_name, create->cr_namelen, | |
579 | create->cr_linkname, create->cr_linklen, | |
580 | &resfh, &create->cr_iattr); | |
1da177e4 LT |
581 | break; |
582 | ||
583 | case NF4BLK: | |
584 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
585 | if (MAJOR(rdev) != create->cr_specdata1 || | |
586 | MINOR(rdev) != create->cr_specdata2) | |
587 | return nfserr_inval; | |
ca364317 BF |
588 | status = nfsd_create(rqstp, &cstate->current_fh, |
589 | create->cr_name, create->cr_namelen, | |
590 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
591 | break; |
592 | ||
593 | case NF4CHR: | |
594 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
595 | if (MAJOR(rdev) != create->cr_specdata1 || | |
596 | MINOR(rdev) != create->cr_specdata2) | |
597 | return nfserr_inval; | |
ca364317 BF |
598 | status = nfsd_create(rqstp, &cstate->current_fh, |
599 | create->cr_name, create->cr_namelen, | |
600 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
601 | break; |
602 | ||
603 | case NF4SOCK: | |
ca364317 BF |
604 | status = nfsd_create(rqstp, &cstate->current_fh, |
605 | create->cr_name, create->cr_namelen, | |
606 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
607 | break; |
608 | ||
609 | case NF4FIFO: | |
ca364317 BF |
610 | status = nfsd_create(rqstp, &cstate->current_fh, |
611 | create->cr_name, create->cr_namelen, | |
612 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
613 | break; |
614 | ||
615 | case NF4DIR: | |
616 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
617 | status = nfsd_create(rqstp, &cstate->current_fh, |
618 | create->cr_name, create->cr_namelen, | |
619 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
620 | break; |
621 | ||
622 | default: | |
623 | status = nfserr_badtype; | |
624 | } | |
625 | ||
9208faf2 YZ |
626 | if (status) |
627 | goto out; | |
1da177e4 | 628 | |
9208faf2 YZ |
629 | if (create->cr_acl != NULL) |
630 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
631 | create->cr_bmval); | |
632 | ||
633 | fh_unlock(&cstate->current_fh); | |
634 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
635 | fh_dup2(&cstate->current_fh, &resfh); | |
636 | out: | |
1da177e4 LT |
637 | fh_put(&resfh); |
638 | return status; | |
639 | } | |
640 | ||
7191155b | 641 | static __be32 |
ca364317 BF |
642 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
643 | struct nfsd4_getattr *getattr) | |
1da177e4 | 644 | { |
b37ad28b | 645 | __be32 status; |
1da177e4 | 646 | |
8837abca | 647 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
648 | if (status) |
649 | return status; | |
650 | ||
651 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
652 | return nfserr_inval; | |
653 | ||
7e705706 AA |
654 | getattr->ga_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
655 | getattr->ga_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
656 | getattr->ga_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 657 | |
ca364317 | 658 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
659 | return nfs_ok; |
660 | } | |
661 | ||
7191155b | 662 | static __be32 |
ca364317 BF |
663 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
664 | struct nfsd4_link *link) | |
1da177e4 | 665 | { |
b37ad28b | 666 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 667 | |
ca364317 | 668 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 669 | return status; |
ca364317 BF |
670 | status = nfsd_link(rqstp, &cstate->current_fh, |
671 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 672 | if (!status) |
ca364317 | 673 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
674 | return status; |
675 | } | |
676 | ||
0ff7ab46 | 677 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
678 | { |
679 | struct svc_fh tmp_fh; | |
b37ad28b | 680 | __be32 ret; |
1da177e4 LT |
681 | |
682 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
683 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
684 | if (ret) | |
1da177e4 | 685 | return ret; |
0ff7ab46 | 686 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
687 | fh_put(&tmp_fh); |
688 | return nfserr_noent; | |
689 | } | |
690 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
691 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
692 | } | |
693 | ||
694 | static __be32 | |
695 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
696 | void *arg) | |
697 | { | |
698 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
699 | } |
700 | ||
7191155b | 701 | static __be32 |
ca364317 BF |
702 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
703 | struct nfsd4_lookup *lookup) | |
1da177e4 | 704 | { |
ca364317 BF |
705 | return nfsd_lookup(rqstp, &cstate->current_fh, |
706 | lookup->lo_name, lookup->lo_len, | |
707 | &cstate->current_fh); | |
1da177e4 LT |
708 | } |
709 | ||
7191155b | 710 | static __be32 |
ca364317 BF |
711 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
712 | struct nfsd4_read *read) | |
1da177e4 | 713 | { |
b37ad28b | 714 | __be32 status; |
1da177e4 LT |
715 | |
716 | /* no need to check permission - this will be done in nfsd_read() */ | |
717 | ||
7e06b7f9 | 718 | read->rd_filp = NULL; |
1da177e4 LT |
719 | if (read->rd_offset >= OFFSET_MAX) |
720 | return nfserr_inval; | |
721 | ||
9b3234b9 BF |
722 | /* |
723 | * If we do a zero copy read, then a client will see read data | |
724 | * that reflects the state of the file *after* performing the | |
725 | * following compound. | |
726 | * | |
727 | * To ensure proper ordering, we therefore turn off zero copy if | |
728 | * the client wants us to do more in this compound: | |
729 | */ | |
730 | if (!nfsd4_last_compound_op(rqstp)) | |
731 | rqstp->rq_splice_ok = false; | |
732 | ||
1da177e4 LT |
733 | nfs4_lock_state(); |
734 | /* check stateid */ | |
5ccb0066 SK |
735 | if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
736 | cstate, &read->rd_stateid, | |
dd453dfd | 737 | RD_STATE, &read->rd_filp))) { |
1da177e4 LT |
738 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
739 | goto out; | |
740 | } | |
7e06b7f9 N |
741 | if (read->rd_filp) |
742 | get_file(read->rd_filp); | |
1da177e4 LT |
743 | status = nfs_ok; |
744 | out: | |
745 | nfs4_unlock_state(); | |
746 | read->rd_rqstp = rqstp; | |
ca364317 | 747 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
748 | return status; |
749 | } | |
750 | ||
7191155b | 751 | static __be32 |
ca364317 BF |
752 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
753 | struct nfsd4_readdir *readdir) | |
1da177e4 LT |
754 | { |
755 | u64 cookie = readdir->rd_cookie; | |
756 | static const nfs4_verifier zeroverf; | |
757 | ||
758 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
759 | ||
760 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
761 | return nfserr_inval; | |
762 | ||
7e705706 AA |
763 | readdir->rd_bmval[0] &= nfsd_suppattrs0(cstate->minorversion); |
764 | readdir->rd_bmval[1] &= nfsd_suppattrs1(cstate->minorversion); | |
765 | readdir->rd_bmval[2] &= nfsd_suppattrs2(cstate->minorversion); | |
1da177e4 | 766 | |
832023bf | 767 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
768 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
769 | return nfserr_bad_cookie; | |
770 | ||
771 | readdir->rd_rqstp = rqstp; | |
ca364317 | 772 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
773 | return nfs_ok; |
774 | } | |
775 | ||
7191155b | 776 | static __be32 |
ca364317 BF |
777 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
778 | struct nfsd4_readlink *readlink) | |
1da177e4 LT |
779 | { |
780 | readlink->rl_rqstp = rqstp; | |
ca364317 | 781 | readlink->rl_fhp = &cstate->current_fh; |
1da177e4 LT |
782 | return nfs_ok; |
783 | } | |
784 | ||
7191155b | 785 | static __be32 |
ca364317 BF |
786 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
787 | struct nfsd4_remove *remove) | |
1da177e4 | 788 | { |
b37ad28b | 789 | __be32 status; |
1da177e4 | 790 | |
5ccb0066 | 791 | if (locks_in_grace(SVC_NET(rqstp))) |
c815afc7 | 792 | return nfserr_grace; |
ca364317 BF |
793 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
794 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 795 | if (!status) { |
ca364317 BF |
796 | fh_unlock(&cstate->current_fh); |
797 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
798 | } |
799 | return status; | |
800 | } | |
801 | ||
7191155b | 802 | static __be32 |
ca364317 BF |
803 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
804 | struct nfsd4_rename *rename) | |
1da177e4 | 805 | { |
b37ad28b | 806 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 807 | |
ca364317 | 808 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 809 | return status; |
5ccb0066 SK |
810 | if (locks_in_grace(SVC_NET(rqstp)) && |
811 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) | |
c815afc7 | 812 | return nfserr_grace; |
ca364317 BF |
813 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
814 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 | 815 | rename->rn_tname, rename->rn_tnamelen); |
2a6cf944 BF |
816 | if (status) |
817 | return status; | |
818 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); | |
819 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
820 | return nfs_ok; | |
1da177e4 LT |
821 | } |
822 | ||
dcb488a3 AA |
823 | static __be32 |
824 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
825 | struct nfsd4_secinfo *secinfo) | |
826 | { | |
827 | struct svc_fh resfh; | |
828 | struct svc_export *exp; | |
829 | struct dentry *dentry; | |
830 | __be32 err; | |
831 | ||
832 | fh_init(&resfh, NFS4_FHSIZE); | |
29a78a3e BF |
833 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
834 | if (err) | |
835 | return err; | |
dcb488a3 AA |
836 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
837 | secinfo->si_name, secinfo->si_namelen, | |
838 | &exp, &dentry); | |
839 | if (err) | |
840 | return err; | |
841 | if (dentry->d_inode == NULL) { | |
842 | exp_put(exp); | |
843 | err = nfserr_noent; | |
844 | } else | |
845 | secinfo->si_exp = exp; | |
846 | dput(dentry); | |
56560b9a BF |
847 | if (cstate->minorversion) |
848 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
849 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
850 | return err; |
851 | } | |
852 | ||
04f4ad16 BF |
853 | static __be32 |
854 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
855 | struct nfsd4_secinfo_no_name *sin) | |
856 | { | |
857 | __be32 err; | |
858 | ||
859 | switch (sin->sin_style) { | |
860 | case NFS4_SECINFO_STYLE4_CURRENT_FH: | |
861 | break; | |
862 | case NFS4_SECINFO_STYLE4_PARENT: | |
863 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
864 | if (err) | |
865 | return err; | |
866 | break; | |
867 | default: | |
868 | return nfserr_inval; | |
869 | } | |
870 | exp_get(cstate->current_fh.fh_export); | |
871 | sin->sin_exp = cstate->current_fh.fh_export; | |
872 | fh_put(&cstate->current_fh); | |
873 | return nfs_ok; | |
874 | } | |
875 | ||
7191155b | 876 | static __be32 |
ca364317 BF |
877 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
878 | struct nfsd4_setattr *setattr) | |
1da177e4 | 879 | { |
b37ad28b | 880 | __be32 status = nfs_ok; |
96f6f985 | 881 | int err; |
1da177e4 | 882 | |
1da177e4 LT |
883 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
884 | nfs4_lock_state(); | |
5ccb0066 | 885 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, |
6150ef0d | 886 | &setattr->sa_stateid, WR_STATE, NULL); |
1da177e4 | 887 | nfs4_unlock_state(); |
375c5547 | 888 | if (status) { |
3e3b4800 | 889 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
890 | return status; |
891 | } | |
1da177e4 | 892 | } |
96f6f985 AV |
893 | err = fh_want_write(&cstate->current_fh); |
894 | if (err) | |
895 | return nfserrno(err); | |
1da177e4 | 896 | status = nfs_ok; |
3c8e0316 YZ |
897 | |
898 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
899 | nfsd_attrmask); | |
900 | if (status) | |
901 | goto out; | |
902 | ||
1da177e4 | 903 | if (setattr->sa_acl != NULL) |
ca364317 BF |
904 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
905 | setattr->sa_acl); | |
1da177e4 | 906 | if (status) |
18f335af | 907 | goto out; |
ca364317 | 908 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 909 | 0, (time_t)0); |
18f335af | 910 | out: |
bad0dcff | 911 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
912 | return status; |
913 | } | |
914 | ||
ffe1137b BF |
915 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
916 | { | |
917 | int i = 1; | |
918 | int buflen = write->wr_buflen; | |
919 | ||
920 | vec[0].iov_base = write->wr_head.iov_base; | |
921 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); | |
922 | buflen -= vec[0].iov_len; | |
923 | ||
924 | while (buflen) { | |
925 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); | |
926 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); | |
927 | buflen -= vec[i].iov_len; | |
928 | i++; | |
929 | } | |
930 | return i; | |
931 | } | |
932 | ||
7191155b | 933 | static __be32 |
ca364317 BF |
934 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
935 | struct nfsd4_write *write) | |
1da177e4 LT |
936 | { |
937 | stateid_t *stateid = &write->wr_stateid; | |
938 | struct file *filp = NULL; | |
b37ad28b | 939 | __be32 status = nfs_ok; |
31dec253 | 940 | unsigned long cnt; |
ffe1137b | 941 | int nvecs; |
1da177e4 LT |
942 | |
943 | /* no need to check permission - this will be done in nfsd_write() */ | |
944 | ||
945 | if (write->wr_offset >= OFFSET_MAX) | |
946 | return nfserr_inval; | |
947 | ||
948 | nfs4_lock_state(); | |
5ccb0066 SK |
949 | status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), |
950 | cstate, stateid, WR_STATE, &filp); | |
375c5547 | 951 | if (status) { |
b022032e | 952 | nfs4_unlock_state(); |
375c5547 BF |
953 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); |
954 | return status; | |
955 | } | |
b022032e | 956 | if (filp) |
957 | get_file(filp); | |
958 | nfs4_unlock_state(); | |
375c5547 | 959 | |
31dec253 | 960 | cnt = write->wr_buflen; |
1da177e4 | 961 | write->wr_how_written = write->wr_stable_how; |
b9c0ef85 | 962 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
1da177e4 | 963 | |
ffe1137b BF |
964 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
965 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); | |
966 | ||
ca364317 | 967 | status = nfsd_write(rqstp, &cstate->current_fh, filp, |
ffe1137b | 968 | write->wr_offset, rqstp->rq_vec, nvecs, |
31dec253 | 969 | &cnt, &write->wr_how_written); |
7e06b7f9 N |
970 | if (filp) |
971 | fput(filp); | |
1da177e4 | 972 | |
31dec253 DS |
973 | write->wr_bytes_written = cnt; |
974 | ||
1da177e4 | 975 | return status; |
1da177e4 LT |
976 | } |
977 | ||
978 | /* This routine never returns NFS_OK! If there are no other errors, it | |
979 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
980 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
981 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
982 | */ | |
b37ad28b | 983 | static __be32 |
c954e2a5 | 984 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 985 | struct nfsd4_verify *verify) |
1da177e4 | 986 | { |
2ebbc012 | 987 | __be32 *buf, *p; |
1da177e4 | 988 | int count; |
b37ad28b | 989 | __be32 status; |
1da177e4 | 990 | |
8837abca | 991 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
992 | if (status) |
993 | return status; | |
994 | ||
3c8e0316 YZ |
995 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
996 | if (status) | |
997 | return status; | |
998 | ||
1da177e4 LT |
999 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
1000 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
1001 | return nfserr_inval; | |
1002 | if (verify->ve_attrlen & 3) | |
1003 | return nfserr_inval; | |
1004 | ||
1005 | /* count in words: | |
1006 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
1007 | */ | |
1008 | count = 4 + (verify->ve_attrlen >> 2); | |
1009 | buf = kmalloc(count << 2, GFP_KERNEL); | |
1010 | if (!buf) | |
3e772463 | 1011 | return nfserr_jukebox; |
1da177e4 | 1012 | |
84822d0b | 1013 | p = buf; |
ca364317 BF |
1014 | status = nfsd4_encode_fattr(&cstate->current_fh, |
1015 | cstate->current_fh.fh_export, | |
84822d0b BF |
1016 | cstate->current_fh.fh_dentry, &p, |
1017 | count, verify->ve_bmval, | |
406a7ea9 | 1018 | rqstp, 0); |
1da177e4 LT |
1019 | |
1020 | /* this means that nfsd4_encode_fattr() ran out of space */ | |
84822d0b | 1021 | if (status == nfserr_resource) |
1da177e4 LT |
1022 | status = nfserr_not_same; |
1023 | if (status) | |
1024 | goto out_kfree; | |
1025 | ||
95ec28cd BH |
1026 | /* skip bitmap */ |
1027 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
1028 | status = nfserr_not_same; |
1029 | if (ntohl(*p++) != verify->ve_attrlen) | |
1030 | goto out_kfree; | |
1031 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
1032 | status = nfserr_same; | |
1033 | ||
1034 | out_kfree: | |
1035 | kfree(buf); | |
1036 | return status; | |
1037 | } | |
1038 | ||
c954e2a5 BF |
1039 | static __be32 |
1040 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
1041 | struct nfsd4_verify *verify) | |
1042 | { | |
1043 | __be32 status; | |
1044 | ||
1045 | status = _nfsd4_verify(rqstp, cstate, verify); | |
1046 | return status == nfserr_not_same ? nfs_ok : status; | |
1047 | } | |
1048 | ||
1049 | static __be32 | |
1050 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
1051 | struct nfsd4_verify *verify) | |
1052 | { | |
1053 | __be32 status; | |
1054 | ||
1055 | status = _nfsd4_verify(rqstp, cstate, verify); | |
1056 | return status == nfserr_same ? nfs_ok : status; | |
1057 | } | |
1058 | ||
1da177e4 LT |
1059 | /* |
1060 | * NULL call. | |
1061 | */ | |
7111c66e | 1062 | static __be32 |
1da177e4 LT |
1063 | nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp) |
1064 | { | |
1065 | return nfs_ok; | |
1066 | } | |
1067 | ||
e2b20950 SA |
1068 | static inline void nfsd4_increment_op_stats(u32 opnum) |
1069 | { | |
1070 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1071 | nfsdstats.nfs4_opcount[opnum]++; | |
1072 | } | |
1073 | ||
b591480b BF |
1074 | typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1075 | void *); | |
58e7b33a | 1076 | typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op); |
8b70484c TM |
1077 | typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *); |
1078 | typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *); | |
58e7b33a | 1079 | |
f9bb94c4 AA |
1080 | enum nfsd4_op_flags { |
1081 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1082 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1083 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1084 | /* For rfc 5661 section 2.6.3.1.1: */ |
1085 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1086 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1087 | /* |
c856694e BF |
1088 | * These are the ops whose result size we estimate before |
1089 | * encoding, to avoid performing an op then not being able to | |
1090 | * respond or cache a response. This includes writes and setattrs | |
1091 | * as well as the operations usually called "nonidempotent": | |
1092 | */ | |
1093 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1094 | /* | |
1095 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1096 | * We use the DRC for compounds containing non-idempotent |
1097 | * operations, *except* those that are 4.1-specific (since | |
1098 | * sessions provide their own EOS), and except for stateful | |
1099 | * operations other than setclientid and setclientid_confirm | |
1100 | * (since sequence numbers provide EOS for open, lock, etc in | |
1101 | * the v4.0 case). | |
1102 | */ | |
c856694e | 1103 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1104 | /* |
1105 | * These are ops which clear current state id. | |
1106 | */ | |
1107 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1108 | }; |
1109 | ||
1110 | struct nfsd4_operation { | |
1111 | nfsd4op_func op_func; | |
1112 | u32 op_flags; | |
1113 | char *op_name; | |
58e7b33a MJ |
1114 | /* Try to get response size before operation */ |
1115 | nfsd4op_rsize op_rsize_bop; | |
24ff99c6 BS |
1116 | stateid_getter op_get_currentstateid; |
1117 | stateid_setter op_set_currentstateid; | |
b591480b BF |
1118 | }; |
1119 | ||
1120 | static struct nfsd4_operation nfsd4_ops[]; | |
1121 | ||
8f199b82 | 1122 | #ifdef NFSD_DEBUG |
f1c7f79b | 1123 | static const char *nfsd4_op_name(unsigned opnum); |
8f199b82 | 1124 | #endif |
b001a1b6 | 1125 | |
f9bb94c4 | 1126 | /* |
57716355 | 1127 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1128 | * |
57716355 BF |
1129 | * Also note, enforced elsewhere: |
1130 | * - SEQUENCE other than as first op results in | |
1131 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1132 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1133 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1134 | * - DESTROY_SESSION must be the final operation in a compound, if |
1135 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1136 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1137 | */ |
57716355 | 1138 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1139 | { |
57716355 BF |
1140 | struct nfsd4_op *op = &args->ops[0]; |
1141 | ||
1142 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1143 | if (args->minorversion == 0) | |
1144 | return nfs_ok; | |
1145 | /* This is weird, but OK, not our problem: */ | |
1146 | if (args->opcnt == 0) | |
1147 | return nfs_ok; | |
1148 | if (op->status == nfserr_op_illegal) | |
1149 | return nfs_ok; | |
1150 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1151 | return nfserr_op_not_in_session; | |
1152 | if (op->opnum == OP_SEQUENCE) | |
1153 | return nfs_ok; | |
1154 | if (args->opcnt != 1) | |
1155 | return nfserr_not_only_op; | |
1156 | return nfs_ok; | |
f9bb94c4 AA |
1157 | } |
1158 | ||
22b03214 BF |
1159 | static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
1160 | { | |
1161 | return &nfsd4_ops[op->opnum]; | |
1162 | } | |
1163 | ||
1091006c BF |
1164 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1165 | { | |
c856694e | 1166 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1167 | } |
1168 | ||
68d93184 BF |
1169 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1170 | { | |
1171 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1172 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1173 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1174 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
1175 | struct nfsd4_operation *thisd; | |
1176 | struct nfsd4_operation *nextd; | |
1177 | ||
1178 | thisd = OPDESC(this); | |
1179 | /* | |
1180 | * Most ops check wronsec on our own; only the putfh-like ops | |
1181 | * have special rules. | |
1182 | */ | |
1183 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1184 | return false; | |
1185 | /* | |
1186 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1187 | * put-filehandle operation if we're not going to use the | |
1188 | * result: | |
1189 | */ | |
1190 | if (argp->opcnt == resp->opcnt) | |
1191 | return false; | |
1192 | ||
1193 | nextd = OPDESC(next); | |
1194 | /* | |
1195 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1196 | * errors themselves as necessary; others should check for them | |
1197 | * now: | |
1198 | */ | |
1199 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1200 | } | |
1201 | ||
1da177e4 LT |
1202 | /* |
1203 | * COMPOUND call. | |
1204 | */ | |
7111c66e | 1205 | static __be32 |
1da177e4 LT |
1206 | nfsd4_proc_compound(struct svc_rqst *rqstp, |
1207 | struct nfsd4_compoundargs *args, | |
1208 | struct nfsd4_compoundres *resp) | |
1209 | { | |
1210 | struct nfsd4_op *op; | |
b591480b | 1211 | struct nfsd4_operation *opdesc; |
e354d571 | 1212 | struct nfsd4_compound_state *cstate = &resp->cstate; |
e5710199 | 1213 | int slack_bytes; |
58e7b33a | 1214 | u32 plen = 0; |
b37ad28b | 1215 | __be32 status; |
1da177e4 | 1216 | |
1da177e4 | 1217 | resp->xbuf = &rqstp->rq_res; |
e354d571 AA |
1218 | resp->p = rqstp->rq_res.head[0].iov_base + |
1219 | rqstp->rq_res.head[0].iov_len; | |
1da177e4 LT |
1220 | resp->tagp = resp->p; |
1221 | /* reserve space for: taglen, tag, and opcnt */ | |
1222 | resp->p += 2 + XDR_QUADLEN(args->taglen); | |
1223 | resp->end = rqstp->rq_res.head[0].iov_base + PAGE_SIZE; | |
1224 | resp->taglen = args->taglen; | |
1225 | resp->tag = args->tag; | |
1226 | resp->opcnt = 0; | |
1227 | resp->rqstp = rqstp; | |
d87a8ade | 1228 | resp->cstate.minorversion = args->minorversion; |
e354d571 | 1229 | resp->cstate.replay_owner = NULL; |
26c0c75e | 1230 | resp->cstate.session = NULL; |
e354d571 AA |
1231 | fh_init(&resp->cstate.current_fh, NFS4_FHSIZE); |
1232 | fh_init(&resp->cstate.save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1233 | /* |
1234 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1235 | * too hard to avoid non-idempotency problems. | |
1236 | */ | |
1237 | rqstp->rq_usedeferral = 0; | |
1da177e4 LT |
1238 | |
1239 | /* | |
1240 | * According to RFC3010, this takes precedence over all other errors. | |
1241 | */ | |
1242 | status = nfserr_minor_vers_mismatch; | |
8daf220a | 1243 | if (args->minorversion > nfsd_supported_minorversion) |
1da177e4 LT |
1244 | goto out; |
1245 | ||
57716355 BF |
1246 | status = nfs41_check_op_ordering(args); |
1247 | if (status) { | |
f9bb94c4 | 1248 | op = &args->ops[0]; |
57716355 | 1249 | op->status = status; |
f9bb94c4 AA |
1250 | goto encode_op; |
1251 | } | |
1252 | ||
1da177e4 LT |
1253 | while (!status && resp->opcnt < args->opcnt) { |
1254 | op = &args->ops[resp->opcnt++]; | |
1255 | ||
b001a1b6 BH |
1256 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1257 | resp->opcnt, args->opcnt, op->opnum, | |
1258 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1259 | /* |
1260 | * The XDR decode routines may have pre-set op->status; | |
1261 | * for example, if there is a miscellaneous XDR error | |
1262 | * it will be set to nfserr_bad_xdr. | |
1263 | */ | |
9d313b17 BF |
1264 | if (op->status) { |
1265 | if (op->opnum == OP_OPEN) | |
1266 | op->status = nfsd4_open_omfg(rqstp, cstate, op); | |
1da177e4 | 1267 | goto encode_op; |
9d313b17 | 1268 | } |
1da177e4 LT |
1269 | |
1270 | /* We must be able to encode a successful response to | |
1271 | * this operation, with enough room left over to encode a | |
1272 | * failed response to the next operation. If we don't | |
1273 | * have enough room, fail with ERR_RESOURCE. | |
1274 | */ | |
e5710199 BF |
1275 | slack_bytes = (char *)resp->end - (char *)resp->p; |
1276 | if (slack_bytes < COMPOUND_SLACK_SPACE | |
1277 | + COMPOUND_ERR_SLACK_SPACE) { | |
1278 | BUG_ON(slack_bytes < COMPOUND_ERR_SLACK_SPACE); | |
1da177e4 LT |
1279 | op->status = nfserr_resource; |
1280 | goto encode_op; | |
1281 | } | |
1282 | ||
22b03214 | 1283 | opdesc = OPDESC(op); |
b591480b | 1284 | |
ca364317 | 1285 | if (!cstate->current_fh.fh_dentry) { |
27d630ec | 1286 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1287 | op->status = nfserr_nofilehandle; |
1288 | goto encode_op; | |
1289 | } | |
eeac294e BF |
1290 | } else if (cstate->current_fh.fh_export->ex_fslocs.migrated && |
1291 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { | |
42ca0993 | 1292 | op->status = nfserr_moved; |
1da177e4 LT |
1293 | goto encode_op; |
1294 | } | |
b591480b | 1295 | |
58e7b33a MJ |
1296 | /* If op is non-idempotent */ |
1297 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
1298 | plen = opdesc->op_rsize_bop(rqstp, op); | |
1299 | op->status = nfsd4_check_resp_size(resp, plen); | |
1300 | } | |
1301 | ||
1302 | if (op->status) | |
1303 | goto encode_op; | |
1304 | ||
b600de7a BF |
1305 | if (opdesc->op_get_currentstateid) |
1306 | opdesc->op_get_currentstateid(cstate, &op->u); | |
1307 | op->status = opdesc->op_func(rqstp, cstate, &op->u); | |
1da177e4 | 1308 | |
8b70484c TM |
1309 | if (!op->status) { |
1310 | if (opdesc->op_set_currentstateid) | |
1311 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1312 | ||
1313 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
37c593c5 | 1314 | clear_current_stateid(cstate); |
8b70484c TM |
1315 | |
1316 | if (need_wrongsec_check(rqstp)) | |
1317 | op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); | |
1318 | } | |
68d93184 | 1319 | |
1da177e4 | 1320 | encode_op: |
49557cc7 | 1321 | /* Only from SEQUENCE */ |
da3846a2 AA |
1322 | if (resp->cstate.status == nfserr_replay_cache) { |
1323 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
abfabf8c | 1324 | status = op->status; |
da3846a2 AA |
1325 | goto out; |
1326 | } | |
a90b061c | 1327 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1328 | op->replay = &cstate->replay_owner->so_replay; |
1da177e4 LT |
1329 | nfsd4_encode_replay(resp, op); |
1330 | status = op->status = op->replay->rp_status; | |
1331 | } else { | |
1332 | nfsd4_encode_operation(resp, op); | |
1333 | status = op->status; | |
1334 | } | |
0407717d BH |
1335 | |
1336 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1337 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1338 | be32_to_cpu(status)); | |
1339 | ||
a4f1706a | 1340 | if (cstate->replay_owner) { |
5ec094c1 | 1341 | nfs4_unlock_state(); |
a4f1706a | 1342 | cstate->replay_owner = NULL; |
1da177e4 | 1343 | } |
7e06b7f9 N |
1344 | /* XXX Ugh, we need to get rid of this kind of special case: */ |
1345 | if (op->opnum == OP_READ && op->u.read.rd_filp) | |
1346 | fput(op->u.read.rd_filp); | |
e2b20950 SA |
1347 | |
1348 | nfsd4_increment_op_stats(op->opnum); | |
1da177e4 LT |
1349 | } |
1350 | ||
da3846a2 | 1351 | resp->cstate.status = status; |
e354d571 AA |
1352 | fh_put(&resp->cstate.current_fh); |
1353 | fh_put(&resp->cstate.save_fh); | |
1354 | BUG_ON(resp->cstate.replay_owner); | |
1da177e4 | 1355 | out: |
2f425878 AA |
1356 | /* Reset deferral mechanism for RPC deferrals */ |
1357 | rqstp->rq_usedeferral = 1; | |
3b12cd98 | 1358 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1359 | return status; |
1360 | } | |
1361 | ||
58e7b33a MJ |
1362 | #define op_encode_hdr_size (2) |
1363 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1364 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1365 | #define op_encode_change_info_maxsz (5) | |
1366 | #define nfs4_fattr_bitmap_maxsz (4) | |
1367 | ||
1368 | #define op_encode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1369 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) | |
1370 | ||
1371 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1372 | ||
1373 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1374 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1375 | op_encode_ace_maxsz) | |
1376 | ||
1377 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1378 | ||
1379 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1380 | { | |
1381 | return (op_encode_hdr_size) * sizeof(__be32); | |
1382 | } | |
1383 | ||
1384 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1385 | { | |
1386 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1387 | } | |
1388 | ||
1389 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1390 | { | |
1391 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1392 | } | |
1393 | ||
1394 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1395 | { | |
1396 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1397 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1398 | } | |
1399 | ||
1400 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1401 | { | |
1402 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1403 | * sizeof(__be32); | |
1404 | } | |
1405 | ||
1406 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1407 | { | |
1408 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1409 | * sizeof(__be32); | |
1410 | } | |
1411 | ||
1412 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1413 | { | |
1414 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1415 | + op_encode_change_info_maxsz + 1 | |
1416 | + nfs4_fattr_bitmap_maxsz | |
1417 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1418 | } | |
1419 | ||
1420 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1421 | { | |
1422 | u32 maxcount = 0, rlen = 0; | |
1423 | ||
1424 | maxcount = svc_max_payload(rqstp); | |
1425 | rlen = op->u.read.rd_length; | |
1426 | ||
1427 | if (rlen > maxcount) | |
1428 | rlen = maxcount; | |
1429 | ||
1430 | return (op_encode_hdr_size + 2) * sizeof(__be32) + rlen; | |
1431 | } | |
1432 | ||
1433 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1434 | { | |
1435 | u32 rlen = op->u.readdir.rd_maxcount; | |
1436 | ||
1437 | if (rlen > PAGE_SIZE) | |
1438 | rlen = PAGE_SIZE; | |
1439 | ||
1440 | return (op_encode_hdr_size + op_encode_verifier_maxsz) | |
1441 | * sizeof(__be32) + rlen; | |
1442 | } | |
1443 | ||
1444 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1445 | { | |
1446 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1447 | * sizeof(__be32); | |
1448 | } | |
1449 | ||
1450 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1451 | { | |
1452 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1453 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1454 | } | |
1455 | ||
1456 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1457 | { | |
1458 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1459 | } | |
1460 | ||
1461 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1462 | { | |
1463 | return (op_encode_hdr_size + 2 + 1024) * sizeof(__be32); | |
1464 | } | |
1465 | ||
1466 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1467 | { | |
1468 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1469 | } | |
1470 | ||
1471 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1472 | { | |
1473 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
1474 | 1 + 1 + 0 + /* eir_flags, spr_how, SP4_NONE (for now) */\ | |
1475 | 2 + /*eir_server_owner.so_minor_id */\ | |
1476 | /* eir_server_owner.so_major_id<> */\ | |
1477 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1478 | /* eir_server_scope<> */\ | |
1479 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
1480 | 1 + /* eir_server_impl_id array length */\ | |
1481 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
1482 | } | |
1483 | ||
1484 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1485 | { | |
1486 | return (op_encode_hdr_size + \ | |
1487 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
1488 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
1489 | } | |
1490 | ||
1491 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1492 | { | |
1493 | return (op_encode_hdr_size + \ | |
1494 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
1495 | 2 + /* csr_sequence, csr_flags */\ | |
1496 | op_encode_channel_attrs_maxsz + \ | |
1497 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
1498 | } | |
1499 | ||
20766016 | 1500 | static struct nfsd4_operation nfsd4_ops[] = { |
b591480b BF |
1501 | [OP_ACCESS] = { |
1502 | .op_func = (nfsd4op_func)nfsd4_access, | |
b001a1b6 | 1503 | .op_name = "OP_ACCESS", |
b591480b BF |
1504 | }, |
1505 | [OP_CLOSE] = { | |
1506 | .op_func = (nfsd4op_func)nfsd4_close, | |
58e7b33a | 1507 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1508 | .op_name = "OP_CLOSE", |
58e7b33a | 1509 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
8b70484c TM |
1510 | .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid, |
1511 | .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid, | |
b591480b BF |
1512 | }, |
1513 | [OP_COMMIT] = { | |
1514 | .op_func = (nfsd4op_func)nfsd4_commit, | |
58e7b33a | 1515 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1516 | .op_name = "OP_COMMIT", |
58e7b33a | 1517 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize, |
b591480b BF |
1518 | }, |
1519 | [OP_CREATE] = { | |
1520 | .op_func = (nfsd4op_func)nfsd4_create, | |
d1471053 | 1521 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 1522 | .op_name = "OP_CREATE", |
58e7b33a | 1523 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize, |
b591480b BF |
1524 | }, |
1525 | [OP_DELEGRETURN] = { | |
1526 | .op_func = (nfsd4op_func)nfsd4_delegreturn, | |
58e7b33a | 1527 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1528 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 1529 | .op_rsize_bop = nfsd4_only_status_rsize, |
9428fe1a | 1530 | .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid, |
b591480b BF |
1531 | }, |
1532 | [OP_GETATTR] = { | |
1533 | .op_func = (nfsd4op_func)nfsd4_getattr, | |
eeac294e | 1534 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b001a1b6 | 1535 | .op_name = "OP_GETATTR", |
b591480b BF |
1536 | }, |
1537 | [OP_GETFH] = { | |
1538 | .op_func = (nfsd4op_func)nfsd4_getfh, | |
b001a1b6 | 1539 | .op_name = "OP_GETFH", |
b591480b BF |
1540 | }, |
1541 | [OP_LINK] = { | |
1542 | .op_func = (nfsd4op_func)nfsd4_link, | |
c856694e BF |
1543 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
1544 | | OP_CACHEME, | |
b001a1b6 | 1545 | .op_name = "OP_LINK", |
58e7b33a | 1546 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize, |
b591480b BF |
1547 | }, |
1548 | [OP_LOCK] = { | |
1549 | .op_func = (nfsd4op_func)nfsd4_lock, | |
58e7b33a | 1550 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1551 | .op_name = "OP_LOCK", |
58e7b33a | 1552 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, |
62cd4a59 | 1553 | .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid, |
b591480b BF |
1554 | }, |
1555 | [OP_LOCKT] = { | |
1556 | .op_func = (nfsd4op_func)nfsd4_lockt, | |
b001a1b6 | 1557 | .op_name = "OP_LOCKT", |
b591480b BF |
1558 | }, |
1559 | [OP_LOCKU] = { | |
1560 | .op_func = (nfsd4op_func)nfsd4_locku, | |
58e7b33a | 1561 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1562 | .op_name = "OP_LOCKU", |
58e7b33a | 1563 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
62cd4a59 | 1564 | .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid, |
b591480b BF |
1565 | }, |
1566 | [OP_LOOKUP] = { | |
1567 | .op_func = (nfsd4op_func)nfsd4_lookup, | |
d1471053 | 1568 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1569 | .op_name = "OP_LOOKUP", |
b591480b BF |
1570 | }, |
1571 | [OP_LOOKUPP] = { | |
1572 | .op_func = (nfsd4op_func)nfsd4_lookupp, | |
d1471053 | 1573 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 1574 | .op_name = "OP_LOOKUPP", |
b591480b BF |
1575 | }, |
1576 | [OP_NVERIFY] = { | |
1577 | .op_func = (nfsd4op_func)nfsd4_nverify, | |
b001a1b6 | 1578 | .op_name = "OP_NVERIFY", |
b591480b BF |
1579 | }, |
1580 | [OP_OPEN] = { | |
1581 | .op_func = (nfsd4op_func)nfsd4_open, | |
58e7b33a | 1582 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1583 | .op_name = "OP_OPEN", |
58e7b33a | 1584 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize, |
8b70484c | 1585 | .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid, |
b591480b BF |
1586 | }, |
1587 | [OP_OPEN_CONFIRM] = { | |
1588 | .op_func = (nfsd4op_func)nfsd4_open_confirm, | |
58e7b33a | 1589 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1590 | .op_name = "OP_OPEN_CONFIRM", |
58e7b33a | 1591 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
b591480b BF |
1592 | }, |
1593 | [OP_OPEN_DOWNGRADE] = { | |
1594 | .op_func = (nfsd4op_func)nfsd4_open_downgrade, | |
58e7b33a | 1595 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1596 | .op_name = "OP_OPEN_DOWNGRADE", |
58e7b33a | 1597 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize, |
9428fe1a TM |
1598 | .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid, |
1599 | .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid, | |
b591480b BF |
1600 | }, |
1601 | [OP_PUTFH] = { | |
1602 | .op_func = (nfsd4op_func)nfsd4_putfh, | |
68d93184 | 1603 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1604 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1605 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1606 | .op_name = "OP_PUTFH", |
58e7b33a | 1607 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1608 | }, |
eeac294e | 1609 | [OP_PUTPUBFH] = { |
a1c8c4d1 | 1610 | .op_func = (nfsd4op_func)nfsd4_putrootfh, |
68d93184 | 1611 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1612 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1613 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1614 | .op_name = "OP_PUTPUBFH", |
58e7b33a | 1615 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
eeac294e | 1616 | }, |
b591480b BF |
1617 | [OP_PUTROOTFH] = { |
1618 | .op_func = (nfsd4op_func)nfsd4_putrootfh, | |
68d93184 | 1619 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
80e01cc1 TM |
1620 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING |
1621 | | OP_CLEAR_STATEID, | |
b001a1b6 | 1622 | .op_name = "OP_PUTROOTFH", |
58e7b33a | 1623 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1624 | }, |
1625 | [OP_READ] = { | |
1626 | .op_func = (nfsd4op_func)nfsd4_read, | |
58e7b33a | 1627 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1628 | .op_name = "OP_READ", |
58e7b33a | 1629 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize, |
30813e27 | 1630 | .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid, |
b591480b BF |
1631 | }, |
1632 | [OP_READDIR] = { | |
1633 | .op_func = (nfsd4op_func)nfsd4_readdir, | |
58e7b33a | 1634 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 1635 | .op_name = "OP_READDIR", |
58e7b33a | 1636 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize, |
b591480b BF |
1637 | }, |
1638 | [OP_READLINK] = { | |
1639 | .op_func = (nfsd4op_func)nfsd4_readlink, | |
b001a1b6 | 1640 | .op_name = "OP_READLINK", |
b591480b BF |
1641 | }, |
1642 | [OP_REMOVE] = { | |
1643 | .op_func = (nfsd4op_func)nfsd4_remove, | |
c856694e | 1644 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1645 | .op_name = "OP_REMOVE", |
58e7b33a | 1646 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize, |
b591480b BF |
1647 | }, |
1648 | [OP_RENAME] = { | |
1649 | .op_func = (nfsd4op_func)nfsd4_rename, | |
c856694e | 1650 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1651 | .op_name = "OP_RENAME", |
58e7b33a | 1652 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize, |
b591480b BF |
1653 | }, |
1654 | [OP_RENEW] = { | |
1655 | .op_func = (nfsd4op_func)nfsd4_renew, | |
58e7b33a MJ |
1656 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1657 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1658 | .op_name = "OP_RENEW", |
58e7b33a MJ |
1659 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
1660 | ||
b591480b BF |
1661 | }, |
1662 | [OP_RESTOREFH] = { | |
1663 | .op_func = (nfsd4op_func)nfsd4_restorefh, | |
68d93184 | 1664 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 1665 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1666 | .op_name = "OP_RESTOREFH", |
58e7b33a | 1667 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1668 | }, |
1669 | [OP_SAVEFH] = { | |
1670 | .op_func = (nfsd4op_func)nfsd4_savefh, | |
58e7b33a | 1671 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 1672 | .op_name = "OP_SAVEFH", |
58e7b33a | 1673 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1674 | }, |
dcb488a3 AA |
1675 | [OP_SECINFO] = { |
1676 | .op_func = (nfsd4op_func)nfsd4_secinfo, | |
68d93184 | 1677 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 1678 | .op_name = "OP_SECINFO", |
dcb488a3 | 1679 | }, |
b591480b BF |
1680 | [OP_SETATTR] = { |
1681 | .op_func = (nfsd4op_func)nfsd4_setattr, | |
b001a1b6 | 1682 | .op_name = "OP_SETATTR", |
c856694e | 1683 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 1684 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize, |
1e97b519 | 1685 | .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid, |
b591480b BF |
1686 | }, |
1687 | [OP_SETCLIENTID] = { | |
1688 | .op_func = (nfsd4op_func)nfsd4_setclientid, | |
58e7b33a | 1689 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1690 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1691 | .op_name = "OP_SETCLIENTID", |
58e7b33a | 1692 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize, |
b591480b BF |
1693 | }, |
1694 | [OP_SETCLIENTID_CONFIRM] = { | |
1695 | .op_func = (nfsd4op_func)nfsd4_setclientid_confirm, | |
58e7b33a | 1696 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 1697 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1698 | .op_name = "OP_SETCLIENTID_CONFIRM", |
58e7b33a | 1699 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b BF |
1700 | }, |
1701 | [OP_VERIFY] = { | |
1702 | .op_func = (nfsd4op_func)nfsd4_verify, | |
b001a1b6 | 1703 | .op_name = "OP_VERIFY", |
b591480b BF |
1704 | }, |
1705 | [OP_WRITE] = { | |
1706 | .op_func = (nfsd4op_func)nfsd4_write, | |
c856694e | 1707 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 1708 | .op_name = "OP_WRITE", |
58e7b33a | 1709 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize, |
30813e27 | 1710 | .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid, |
b591480b BF |
1711 | }, |
1712 | [OP_RELEASE_LOCKOWNER] = { | |
1713 | .op_func = (nfsd4op_func)nfsd4_release_lockowner, | |
58e7b33a MJ |
1714 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
1715 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 1716 | .op_name = "OP_RELEASE_LOCKOWNER", |
58e7b33a | 1717 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
b591480b | 1718 | }, |
069b6ad4 AA |
1719 | |
1720 | /* NFSv4.1 operations */ | |
1721 | [OP_EXCHANGE_ID] = { | |
1722 | .op_func = (nfsd4op_func)nfsd4_exchange_id, | |
58e7b33a MJ |
1723 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1724 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1725 | .op_name = "OP_EXCHANGE_ID", |
58e7b33a | 1726 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize, |
069b6ad4 | 1727 | }, |
cb73a9f4 BF |
1728 | [OP_BACKCHANNEL_CTL] = { |
1729 | .op_func = (nfsd4op_func)nfsd4_backchannel_ctl, | |
1730 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, | |
1731 | .op_name = "OP_BACKCHANNEL_CTL", | |
1732 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, | |
1733 | }, | |
1d1bc8f2 BF |
1734 | [OP_BIND_CONN_TO_SESSION] = { |
1735 | .op_func = (nfsd4op_func)nfsd4_bind_conn_to_session, | |
58e7b33a MJ |
1736 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1737 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 1738 | .op_name = "OP_BIND_CONN_TO_SESSION", |
58e7b33a | 1739 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 1740 | }, |
069b6ad4 AA |
1741 | [OP_CREATE_SESSION] = { |
1742 | .op_func = (nfsd4op_func)nfsd4_create_session, | |
58e7b33a MJ |
1743 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1744 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1745 | .op_name = "OP_CREATE_SESSION", |
58e7b33a | 1746 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize, |
069b6ad4 AA |
1747 | }, |
1748 | [OP_DESTROY_SESSION] = { | |
1749 | .op_func = (nfsd4op_func)nfsd4_destroy_session, | |
58e7b33a MJ |
1750 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1751 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 1752 | .op_name = "OP_DESTROY_SESSION", |
58e7b33a | 1753 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
069b6ad4 AA |
1754 | }, |
1755 | [OP_SEQUENCE] = { | |
1756 | .op_func = (nfsd4op_func)nfsd4_sequence, | |
f9bb94c4 | 1757 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 AA |
1758 | .op_name = "OP_SEQUENCE", |
1759 | }, | |
094b5d74 | 1760 | [OP_DESTROY_CLIENTID] = { |
345c2842 | 1761 | .op_func = (nfsd4op_func)nfsd4_destroy_clientid, |
58e7b33a MJ |
1762 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
1763 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 1764 | .op_name = "OP_DESTROY_CLIENTID", |
58e7b33a | 1765 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
094b5d74 | 1766 | }, |
4dc6ec00 BF |
1767 | [OP_RECLAIM_COMPLETE] = { |
1768 | .op_func = (nfsd4op_func)nfsd4_reclaim_complete, | |
58e7b33a | 1769 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 1770 | .op_name = "OP_RECLAIM_COMPLETE", |
58e7b33a | 1771 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
4dc6ec00 | 1772 | }, |
04f4ad16 BF |
1773 | [OP_SECINFO_NO_NAME] = { |
1774 | .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, | |
68d93184 | 1775 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 BF |
1776 | .op_name = "OP_SECINFO_NO_NAME", |
1777 | }, | |
17456804 BS |
1778 | [OP_TEST_STATEID] = { |
1779 | .op_func = (nfsd4op_func)nfsd4_test_stateid, | |
1780 | .op_flags = ALLOWED_WITHOUT_FH, | |
1781 | .op_name = "OP_TEST_STATEID", | |
1782 | }, | |
e1ca12df BS |
1783 | [OP_FREE_STATEID] = { |
1784 | .op_func = (nfsd4op_func)nfsd4_free_stateid, | |
58e7b33a | 1785 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 1786 | .op_name = "OP_FREE_STATEID", |
a1dc6955 | 1787 | .op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid, |
58e7b33a | 1788 | .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, |
e1ca12df | 1789 | }, |
b591480b BF |
1790 | }; |
1791 | ||
8f199b82 | 1792 | #ifdef NFSD_DEBUG |
f1c7f79b | 1793 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
1794 | { |
1795 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
1796 | return nfsd4_ops[opnum].op_name; | |
1797 | return "unknown_operation"; | |
1798 | } | |
8f199b82 | 1799 | #endif |
b001a1b6 | 1800 | |
1da177e4 | 1801 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
1802 | struct nfsd4_voidargs { int dummy; }; |
1803 | ||
1da177e4 | 1804 | static struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f YZ |
1805 | [NFSPROC4_NULL] = { |
1806 | .pc_func = (svc_procfunc) nfsd4_proc_null, | |
1807 | .pc_encode = (kxdrproc_t) nfs4svc_encode_voidres, | |
1808 | .pc_argsize = sizeof(struct nfsd4_voidargs), | |
1809 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
1810 | .pc_cachetype = RC_NOCACHE, | |
1811 | .pc_xdrressize = 1, | |
1812 | }, | |
1813 | [NFSPROC4_COMPOUND] = { | |
1814 | .pc_func = (svc_procfunc) nfsd4_proc_compound, | |
1815 | .pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs, | |
1816 | .pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres, | |
1817 | .pc_argsize = sizeof(struct nfsd4_compoundargs), | |
1818 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 1819 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
1820 | .pc_cachetype = RC_NOCACHE, |
1821 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
1822 | }, | |
1da177e4 LT |
1823 | }; |
1824 | ||
1825 | struct svc_version nfsd_version4 = { | |
1826 | .vs_vers = 4, | |
1827 | .vs_nproc = 2, | |
1828 | .vs_proc = nfsd_procedures4, | |
1829 | .vs_dispatch = nfsd_dispatch, | |
1830 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
1831 | }; | |
1832 | ||
1833 | /* | |
1834 | * Local variables: | |
1835 | * c-basic-offset: 8 | |
1836 | * End: | |
1837 | */ |