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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 | */ |
880a3a53 | 35 | #include <linux/fs_struct.h> |
7e06b7f9 | 36 | #include <linux/file.h> |
b0cb9085 | 37 | #include <linux/falloc.h> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
1da177e4 | 39 | |
58e7b33a | 40 | #include "idmap.h" |
9a74af21 BH |
41 | #include "cache.h" |
42 | #include "xdr4.h" | |
0a3adade | 43 | #include "vfs.h" |
8b70484c | 44 | #include "current_stateid.h" |
3320fef1 | 45 | #include "netns.h" |
4ac7249e | 46 | #include "acl.h" |
9cf514cc | 47 | #include "pnfs.h" |
31ef83dc | 48 | #include "trace.h" |
1da177e4 | 49 | |
18032ca0 DQ |
50 | #ifdef CONFIG_NFSD_V4_SECURITY_LABEL |
51 | #include <linux/security.h> | |
52 | ||
53 | static inline void | |
54 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) | |
55 | { | |
2b0143b5 | 56 | struct inode *inode = d_inode(resfh->fh_dentry); |
18032ca0 DQ |
57 | int status; |
58 | ||
5955102c | 59 | inode_lock(inode); |
18032ca0 DQ |
60 | status = security_inode_setsecctx(resfh->fh_dentry, |
61 | label->data, label->len); | |
5955102c | 62 | inode_unlock(inode); |
18032ca0 DQ |
63 | |
64 | if (status) | |
65 | /* | |
66 | * XXX: We should really fail the whole open, but we may | |
67 | * already have created a new file, so it may be too | |
68 | * late. For now this seems the least of evils: | |
69 | */ | |
70 | bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL; | |
71 | ||
72 | return; | |
73 | } | |
74 | #else | |
75 | static inline void | |
76 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) | |
77 | { } | |
78 | #endif | |
79 | ||
1da177e4 LT |
80 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
81 | ||
3c8e0316 YZ |
82 | static u32 nfsd_attrmask[] = { |
83 | NFSD_WRITEABLE_ATTRS_WORD0, | |
84 | NFSD_WRITEABLE_ATTRS_WORD1, | |
85 | NFSD_WRITEABLE_ATTRS_WORD2 | |
86 | }; | |
87 | ||
88 | static u32 nfsd41_ex_attrmask[] = { | |
89 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
90 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
91 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
92 | }; | |
93 | ||
94 | static __be32 | |
95 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
96 | u32 *bmval, u32 *writable) | |
97 | { | |
98 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
32ddd944 | 99 | struct svc_export *exp = cstate->current_fh.fh_export; |
3c8e0316 | 100 | |
916d2d84 | 101 | if (!nfsd_attrs_supported(cstate->minorversion, bmval)) |
3c8e0316 | 102 | return nfserr_attrnotsupp; |
916d2d84 BF |
103 | if ((bmval[0] & FATTR4_WORD0_ACL) && !IS_POSIXACL(d_inode(dentry))) |
104 | return nfserr_attrnotsupp; | |
32ddd944 BF |
105 | if ((bmval[2] & FATTR4_WORD2_SECURITY_LABEL) && |
106 | !(exp->ex_flags & NFSEXP_SECURITY_LABEL)) | |
107 | return nfserr_attrnotsupp; | |
916d2d84 BF |
108 | if (writable && !bmval_is_subset(bmval, writable)) |
109 | return nfserr_inval; | |
47057abd AG |
110 | if (writable && (bmval[2] & FATTR4_WORD2_MODE_UMASK) && |
111 | (bmval[1] & FATTR4_WORD1_MODE)) | |
112 | return nfserr_inval; | |
3c8e0316 YZ |
113 | return nfs_ok; |
114 | } | |
115 | ||
116 | static __be32 | |
117 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
118 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
119 | { | |
120 | __be32 status = nfs_ok; | |
121 | ||
122 | if (open->op_create == NFS4_OPEN_CREATE) { | |
123 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
124 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
125 | status = check_attr_support(rqstp, cstate, | |
126 | open->op_bmval, nfsd_attrmask); | |
127 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
128 | status = check_attr_support(rqstp, cstate, | |
129 | open->op_bmval, nfsd41_ex_attrmask); | |
130 | } | |
131 | ||
132 | return status; | |
133 | } | |
134 | ||
9208faf2 YZ |
135 | static int |
136 | is_create_with_attrs(struct nfsd4_open *open) | |
137 | { | |
138 | return open->op_create == NFS4_OPEN_CREATE | |
139 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
140 | || open->op_createmode == NFS4_CREATE_GUARDED | |
141 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
142 | } | |
143 | ||
144 | /* | |
145 | * if error occurs when setting the acl, just clear the acl bit | |
146 | * in the returned attr bitmap. | |
147 | */ | |
148 | static void | |
149 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
150 | struct nfs4_acl *acl, u32 *bmval) | |
151 | { | |
152 | __be32 status; | |
153 | ||
154 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
155 | if (status) | |
156 | /* | |
157 | * We should probably fail the whole open at this point, | |
158 | * but we've already created the file, so it's too late; | |
159 | * So this seems the least of evils: | |
160 | */ | |
161 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
162 | } | |
163 | ||
1da177e4 LT |
164 | static inline void |
165 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
166 | { | |
167 | fh_put(dst); | |
168 | dget(src->fh_dentry); | |
169 | if (src->fh_export) | |
bf18f163 | 170 | exp_get(src->fh_export); |
1da177e4 LT |
171 | *dst = *src; |
172 | } | |
173 | ||
b37ad28b | 174 | static __be32 |
dc730e17 | 175 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 176 | { |
b37ad28b | 177 | __be32 status; |
1da177e4 LT |
178 | |
179 | if (open->op_truncate && | |
180 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
181 | return nfserr_inval; | |
182 | ||
a043226b BF |
183 | accmode |= NFSD_MAY_READ_IF_EXEC; |
184 | ||
1da177e4 | 185 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 186 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 187 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 188 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 189 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 190 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
191 | |
192 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
193 | ||
194 | return status; | |
195 | } | |
196 | ||
aadab6c6 BF |
197 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
198 | { | |
2b0143b5 | 199 | umode_t mode = d_inode(fh->fh_dentry)->i_mode; |
aadab6c6 BF |
200 | |
201 | if (S_ISREG(mode)) | |
202 | return nfs_ok; | |
203 | if (S_ISDIR(mode)) | |
204 | return nfserr_isdir; | |
205 | /* | |
206 | * Using err_symlink as our catch-all case may look odd; but | |
207 | * there's no other obvious error for this case in 4.0, and we | |
208 | * happen to know that it will cause the linux v4 client to do | |
209 | * the right thing on attempts to open something other than a | |
210 | * regular file. | |
211 | */ | |
212 | return nfserr_symlink; | |
213 | } | |
214 | ||
bbc9c36c BF |
215 | static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh) |
216 | { | |
217 | if (nfsd4_has_session(cstate)) | |
218 | return; | |
219 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, | |
220 | &resfh->fh_handle); | |
221 | } | |
222 | ||
b37ad28b | 223 | static __be32 |
c0e6bee4 | 224 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh **resfh) |
1da177e4 | 225 | { |
bbc9c36c | 226 | struct svc_fh *current_fh = &cstate->current_fh; |
7007c90f | 227 | int accmode; |
b37ad28b | 228 | __be32 status; |
1da177e4 | 229 | |
c0e6bee4 BF |
230 | *resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
231 | if (!*resfh) | |
59deeb9e | 232 | return nfserr_jukebox; |
c0e6bee4 | 233 | fh_init(*resfh, NFS4_FHSIZE); |
1da177e4 LT |
234 | open->op_truncate = 0; |
235 | ||
236 | if (open->op_create) { | |
79fb54ab BH |
237 | /* FIXME: check session persistence and pnfs flags. |
238 | * The nfsv4.1 spec requires the following semantics: | |
239 | * | |
240 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
241 | * Reply Cache | server | | | |
242 | * -------------+--------+-----------------+-------------------- | |
243 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
244 | * | | | (SHOULD) | |
245 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
246 | * | | | (SHOULD NOT) | |
247 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
248 | * yes | no | GUARDED4 | GUARDED4 | |
249 | * yes | yes | GUARDED4 | GUARDED4 | |
250 | */ | |
251 | ||
1da177e4 LT |
252 | /* |
253 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 254 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 255 | */ |
880a3a53 | 256 | current->fs->umask = open->op_umask; |
ac6721a1 | 257 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 | 258 | open->op_fname.len, &open->op_iattr, |
c0e6bee4 | 259 | *resfh, open->op_createmode, |
749997e5 | 260 | (u32 *)open->op_verf.data, |
856121b2 | 261 | &open->op_truncate, &open->op_created); |
880a3a53 | 262 | current->fs->umask = 0; |
749997e5 | 263 | |
18032ca0 | 264 | if (!status && open->op_label.len) |
c0e6bee4 | 265 | nfsd4_security_inode_setsecctx(*resfh, &open->op_label, open->op_bmval); |
18032ca0 | 266 | |
99f88726 | 267 | /* |
ead8fb8c KM |
268 | * Following rfc 3530 14.2.16, and rfc 5661 18.16.4 |
269 | * use the returned bitmask to indicate which attributes | |
270 | * we used to store the verifier: | |
749997e5 | 271 | */ |
ead8fb8c KM |
272 | if (nfsd_create_is_exclusive(open->op_createmode) && status == 0) |
273 | open->op_bmval[1] |= (FATTR4_WORD1_TIME_ACCESS | | |
274 | FATTR4_WORD1_TIME_MODIFY); | |
4335723e BF |
275 | } else |
276 | /* | |
277 | * Note this may exit with the parent still locked. | |
278 | * We will hold the lock until nfsd4_open's final | |
279 | * lookup, to prevent renames or unlinks until we've had | |
280 | * a chance to an acquire a delegation if appropriate. | |
281 | */ | |
1da177e4 | 282 | status = nfsd_lookup(rqstp, current_fh, |
c0e6bee4 | 283 | open->op_fname.data, open->op_fname.len, *resfh); |
9dc4e6c4 BF |
284 | if (status) |
285 | goto out; | |
c0e6bee4 | 286 | status = nfsd_check_obj_isreg(*resfh); |
af85852d BF |
287 | if (status) |
288 | goto out; | |
1da177e4 | 289 | |
9208faf2 | 290 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
c0e6bee4 | 291 | do_set_nfs4_acl(rqstp, *resfh, open->op_acl, open->op_bmval); |
9208faf2 | 292 | |
c0e6bee4 | 293 | nfsd4_set_open_owner_reply_cache(cstate, open, *resfh); |
7007c90f | 294 | accmode = NFSD_MAY_NOP; |
89f6c336 BF |
295 | if (open->op_created || |
296 | open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR) | |
7007c90f | 297 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
c0e6bee4 | 298 | status = do_open_permission(rqstp, *resfh, open, accmode); |
41fd1e42 | 299 | set_change_info(&open->op_cinfo, current_fh); |
af85852d | 300 | out: |
1da177e4 LT |
301 | return status; |
302 | } | |
303 | ||
b37ad28b | 304 | static __be32 |
bbc9c36c | 305 | do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
1da177e4 | 306 | { |
bbc9c36c | 307 | struct svc_fh *current_fh = &cstate->current_fh; |
b37ad28b | 308 | __be32 status; |
9f415eb2 | 309 | int accmode = 0; |
1da177e4 | 310 | |
1da177e4 LT |
311 | /* We don't know the target directory, and therefore can not |
312 | * set the change info | |
313 | */ | |
314 | ||
315 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
316 | ||
bbc9c36c | 317 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
1da177e4 LT |
318 | |
319 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
320 | (open->op_iattr.ia_size == 0); | |
9f415eb2 BF |
321 | /* |
322 | * In the delegation case, the client is telling us about an | |
323 | * open that it *already* performed locally, some time ago. We | |
324 | * should let it succeed now if possible. | |
325 | * | |
326 | * In the case of a CLAIM_FH open, on the other hand, the client | |
327 | * may be counting on us to enforce permissions (the Linux 4.1 | |
328 | * client uses this for normal opens, for example). | |
329 | */ | |
330 | if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH) | |
331 | accmode = NFSD_MAY_OWNER_OVERRIDE; | |
1da177e4 | 332 | |
9f415eb2 | 333 | status = do_open_permission(rqstp, current_fh, open, accmode); |
1da177e4 LT |
334 | |
335 | return status; | |
336 | } | |
337 | ||
60adfc50 AA |
338 | static void |
339 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
340 | { | |
341 | struct nfsd4_sessionid *sid = | |
342 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
343 | ||
344 | clid->cl_boot = sid->clientid.cl_boot; | |
345 | clid->cl_id = sid->clientid.cl_id; | |
346 | } | |
1da177e4 | 347 | |
7191155b | 348 | static __be32 |
ca364317 | 349 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 350 | union nfsd4_op_u *u) |
1da177e4 | 351 | { |
eb69853d | 352 | struct nfsd4_open *open = &u->open; |
b37ad28b | 353 | __be32 status; |
c0e6bee4 | 354 | struct svc_fh *resfh = NULL; |
3320fef1 SK |
355 | struct net *net = SVC_NET(rqstp); |
356 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); | |
6668958f | 357 | |
fe0750e5 | 358 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 359 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 360 | open->op_openowner); |
1da177e4 | 361 | |
1da177e4 LT |
362 | /* This check required by spec. */ |
363 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
364 | return nfserr_inval; | |
365 | ||
856121b2 | 366 | open->op_created = 0; |
ab1350b2 MJ |
367 | /* |
368 | * RFC5661 18.51.3 | |
369 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
370 | */ | |
371 | if (nfsd4_has_session(cstate) && | |
a52d726b JL |
372 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
373 | &cstate->session->se_client->cl_flags) && | |
ab1350b2 MJ |
374 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
375 | return nfserr_grace; | |
376 | ||
60adfc50 AA |
377 | if (nfsd4_has_session(cstate)) |
378 | copy_clientid(&open->op_clientid, cstate->session); | |
379 | ||
1da177e4 | 380 | /* check seqid for replay. set nfs4_owner */ |
6cd22668 | 381 | status = nfsd4_process_open1(cstate, open, nn); |
a90b061c | 382 | if (status == nfserr_replay_me) { |
fe0750e5 | 383 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 384 | fh_put(&cstate->current_fh); |
a4773c08 BF |
385 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
386 | &rp->rp_openfh); | |
8837abca | 387 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
388 | if (status) |
389 | dprintk("nfsd4_open: replay failed" | |
390 | " restoring previous filehandle\n"); | |
391 | else | |
a90b061c | 392 | status = nfserr_replay_me; |
1da177e4 LT |
393 | } |
394 | if (status) | |
395 | goto out; | |
9d313b17 BF |
396 | if (open->op_xdr_error) { |
397 | status = open->op_xdr_error; | |
398 | goto out; | |
399 | } | |
fb553c0f | 400 | |
3c8e0316 YZ |
401 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
402 | if (status) | |
403 | goto out; | |
404 | ||
fb553c0f BF |
405 | /* Openowner is now set, so sequence id will get bumped. Now we need |
406 | * these checks before we do any creates: */ | |
cbd0d51a | 407 | status = nfserr_grace; |
c87fb4a3 | 408 | if (opens_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
409 | goto out; |
410 | status = nfserr_no_grace; | |
c87fb4a3 | 411 | if (!opens_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 412 | goto out; |
fb553c0f | 413 | |
1da177e4 | 414 | switch (open->op_claim_type) { |
0dd3c192 | 415 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 416 | case NFS4_OPEN_CLAIM_NULL: |
c0e6bee4 | 417 | status = do_open_lookup(rqstp, cstate, open, &resfh); |
1da177e4 LT |
418 | if (status) |
419 | goto out; | |
420 | break; | |
421 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
3320fef1 | 422 | status = nfs4_check_open_reclaim(&open->op_clientid, |
0fe492db | 423 | cstate, nn); |
0cf99b91 MJ |
424 | if (status) |
425 | goto out; | |
ba5378b6 | 426 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
8b289b2c BF |
427 | case NFS4_OPEN_CLAIM_FH: |
428 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
bbc9c36c | 429 | status = do_open_fhandle(rqstp, cstate, open); |
1da177e4 LT |
430 | if (status) |
431 | goto out; | |
c0e6bee4 | 432 | resfh = &cstate->current_fh; |
1da177e4 | 433 | break; |
8b289b2c | 434 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 435 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
2fdada03 | 436 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
437 | open->op_claim_type); |
438 | status = nfserr_notsupp; | |
439 | goto out; | |
440 | default: | |
2fdada03 | 441 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
442 | open->op_claim_type); |
443 | status = nfserr_inval; | |
444 | goto out; | |
445 | } | |
446 | /* | |
447 | * nfsd4_process_open2() does the actual opening of the file. If | |
448 | * successful, it (1) truncates the file if open->op_truncate was | |
449 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
450 | */ | |
c0e6bee4 | 451 | status = nfsd4_process_open2(rqstp, resfh, open); |
b3fbfe0e JL |
452 | WARN(status && open->op_created, |
453 | "nfsd4_process_open2 failed to open newly-created file! status=%u\n", | |
454 | be32_to_cpu(status)); | |
1da177e4 | 455 | out: |
c0e6bee4 BF |
456 | if (resfh && resfh != &cstate->current_fh) { |
457 | fh_dup2(&cstate->current_fh, resfh); | |
458 | fh_put(resfh); | |
459 | kfree(resfh); | |
460 | } | |
42297899 | 461 | nfsd4_cleanup_open_state(cstate, open); |
9411b1d4 | 462 | nfsd4_bump_seqid(cstate, status); |
1da177e4 LT |
463 | return status; |
464 | } | |
465 | ||
9d313b17 BF |
466 | /* |
467 | * OPEN is the only seqid-mutating operation whose decoding can fail | |
468 | * with a seqid-mutating error (specifically, decoding of user names in | |
469 | * the attributes). Therefore we have to do some processing to look up | |
470 | * the stateowner so that we can bump the seqid. | |
471 | */ | |
472 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) | |
473 | { | |
eb69853d | 474 | struct nfsd4_open *open = &op->u.open; |
9d313b17 BF |
475 | |
476 | if (!seqid_mutating_err(ntohl(op->status))) | |
477 | return op->status; | |
478 | if (nfsd4_has_session(cstate)) | |
479 | return op->status; | |
480 | open->op_xdr_error = op->status; | |
eb69853d | 481 | return nfsd4_open(rqstp, cstate, &op->u); |
9d313b17 BF |
482 | } |
483 | ||
1da177e4 LT |
484 | /* |
485 | * filehandle-manipulating ops. | |
486 | */ | |
7191155b | 487 | static __be32 |
b591480b | 488 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 489 | union nfsd4_op_u *u) |
1da177e4 | 490 | { |
eb69853d | 491 | u->getfh = &cstate->current_fh; |
1da177e4 LT |
492 | return nfs_ok; |
493 | } | |
494 | ||
7191155b | 495 | static __be32 |
ca364317 | 496 | nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 497 | union nfsd4_op_u *u) |
1da177e4 | 498 | { |
eb69853d CH |
499 | struct nfsd4_putfh *putfh = &u->putfh; |
500 | ||
ca364317 BF |
501 | fh_put(&cstate->current_fh); |
502 | cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; | |
503 | memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, | |
504 | putfh->pf_fhlen); | |
68d93184 | 505 | return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); |
1da177e4 LT |
506 | } |
507 | ||
7191155b | 508 | static __be32 |
b591480b | 509 | nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 510 | union nfsd4_op_u *u) |
1da177e4 | 511 | { |
b37ad28b | 512 | __be32 status; |
1da177e4 | 513 | |
ca364317 | 514 | fh_put(&cstate->current_fh); |
df547efb | 515 | status = exp_pseudoroot(rqstp, &cstate->current_fh); |
1da177e4 LT |
516 | return status; |
517 | } | |
518 | ||
7191155b | 519 | static __be32 |
b591480b | 520 | nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 521 | union nfsd4_op_u *u) |
1da177e4 | 522 | { |
ca364317 | 523 | if (!cstate->save_fh.fh_dentry) |
1da177e4 LT |
524 | return nfserr_restorefh; |
525 | ||
ca364317 | 526 | fh_dup2(&cstate->current_fh, &cstate->save_fh); |
37c593c5 TM |
527 | if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) { |
528 | memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t)); | |
529 | SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG); | |
530 | } | |
1da177e4 LT |
531 | return nfs_ok; |
532 | } | |
533 | ||
7191155b | 534 | static __be32 |
b591480b | 535 | nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 536 | union nfsd4_op_u *u) |
1da177e4 | 537 | { |
ca364317 | 538 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
37c593c5 TM |
539 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
540 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); | |
541 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); | |
542 | } | |
1da177e4 LT |
543 | return nfs_ok; |
544 | } | |
545 | ||
546 | /* | |
547 | * misc nfsv4 ops | |
548 | */ | |
7191155b | 549 | static __be32 |
ca364317 | 550 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 551 | union nfsd4_op_u *u) |
1da177e4 | 552 | { |
eb69853d CH |
553 | struct nfsd4_access *access = &u->access; |
554 | ||
1da177e4 LT |
555 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
556 | return nfserr_inval; | |
557 | ||
558 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
559 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
560 | &access->ac_supported); | |
1da177e4 LT |
561 | } |
562 | ||
b9c0ef85 | 563 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
ab4684d1 CL |
564 | { |
565 | __be32 verf[2]; | |
b9c0ef85 | 566 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
ab4684d1 | 567 | |
f419992c JL |
568 | /* |
569 | * This is opaque to client, so no need to byte-swap. Use | |
256a89fa AB |
570 | * __force to keep sparse happy. y2038 time_t overflow is |
571 | * irrelevant in this usage. | |
f419992c JL |
572 | */ |
573 | verf[0] = (__force __be32)nn->nfssvc_boot.tv_sec; | |
256a89fa | 574 | verf[1] = (__force __be32)nn->nfssvc_boot.tv_nsec; |
ab4684d1 CL |
575 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
576 | } | |
577 | ||
7191155b | 578 | static __be32 |
ca364317 | 579 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 580 | union nfsd4_op_u *u) |
1da177e4 | 581 | { |
eb69853d CH |
582 | struct nfsd4_commit *commit = &u->commit; |
583 | ||
b9c0ef85 | 584 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
75c096f7 | 585 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 586 | commit->co_count); |
1da177e4 LT |
587 | } |
588 | ||
b37ad28b | 589 | static __be32 |
ca364317 | 590 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 591 | union nfsd4_op_u *u) |
1da177e4 | 592 | { |
eb69853d | 593 | struct nfsd4_create *create = &u->create; |
1da177e4 | 594 | struct svc_fh resfh; |
b37ad28b | 595 | __be32 status; |
1da177e4 LT |
596 | dev_t rdev; |
597 | ||
598 | fh_init(&resfh, NFS4_FHSIZE); | |
599 | ||
fa08139d | 600 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_NOP); |
1da177e4 LT |
601 | if (status) |
602 | return status; | |
603 | ||
3c8e0316 YZ |
604 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
605 | nfsd_attrmask); | |
606 | if (status) | |
607 | return status; | |
608 | ||
880a3a53 | 609 | current->fs->umask = create->cr_umask; |
1da177e4 LT |
610 | switch (create->cr_type) { |
611 | case NF4LNK: | |
ca364317 BF |
612 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
613 | create->cr_name, create->cr_namelen, | |
1e444f5b | 614 | create->cr_data, &resfh); |
1da177e4 LT |
615 | break; |
616 | ||
617 | case NF4BLK: | |
880a3a53 | 618 | status = nfserr_inval; |
1da177e4 LT |
619 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
620 | if (MAJOR(rdev) != create->cr_specdata1 || | |
621 | MINOR(rdev) != create->cr_specdata2) | |
880a3a53 | 622 | goto out_umask; |
ca364317 BF |
623 | status = nfsd_create(rqstp, &cstate->current_fh, |
624 | create->cr_name, create->cr_namelen, | |
625 | &create->cr_iattr, S_IFBLK, rdev, &resfh); | |
1da177e4 LT |
626 | break; |
627 | ||
628 | case NF4CHR: | |
880a3a53 | 629 | status = nfserr_inval; |
1da177e4 LT |
630 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); |
631 | if (MAJOR(rdev) != create->cr_specdata1 || | |
632 | MINOR(rdev) != create->cr_specdata2) | |
880a3a53 | 633 | goto out_umask; |
ca364317 BF |
634 | status = nfsd_create(rqstp, &cstate->current_fh, |
635 | create->cr_name, create->cr_namelen, | |
636 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
637 | break; |
638 | ||
639 | case NF4SOCK: | |
ca364317 BF |
640 | status = nfsd_create(rqstp, &cstate->current_fh, |
641 | create->cr_name, create->cr_namelen, | |
642 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
643 | break; |
644 | ||
645 | case NF4FIFO: | |
ca364317 BF |
646 | status = nfsd_create(rqstp, &cstate->current_fh, |
647 | create->cr_name, create->cr_namelen, | |
648 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
649 | break; |
650 | ||
651 | case NF4DIR: | |
652 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
653 | status = nfsd_create(rqstp, &cstate->current_fh, |
654 | create->cr_name, create->cr_namelen, | |
655 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
656 | break; |
657 | ||
658 | default: | |
659 | status = nfserr_badtype; | |
660 | } | |
661 | ||
9208faf2 YZ |
662 | if (status) |
663 | goto out; | |
1da177e4 | 664 | |
18032ca0 DQ |
665 | if (create->cr_label.len) |
666 | nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); | |
667 | ||
9208faf2 YZ |
668 | if (create->cr_acl != NULL) |
669 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
670 | create->cr_bmval); | |
671 | ||
672 | fh_unlock(&cstate->current_fh); | |
673 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
674 | fh_dup2(&cstate->current_fh, &resfh); | |
675 | out: | |
1da177e4 | 676 | fh_put(&resfh); |
880a3a53 BF |
677 | out_umask: |
678 | current->fs->umask = 0; | |
1da177e4 LT |
679 | return status; |
680 | } | |
681 | ||
7191155b | 682 | static __be32 |
ca364317 | 683 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 684 | union nfsd4_op_u *u) |
1da177e4 | 685 | { |
eb69853d | 686 | struct nfsd4_getattr *getattr = &u->getattr; |
b37ad28b | 687 | __be32 status; |
1da177e4 | 688 | |
8837abca | 689 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
690 | if (status) |
691 | return status; | |
692 | ||
693 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
694 | return nfserr_inval; | |
695 | ||
916d2d84 BF |
696 | getattr->ga_bmval[0] &= nfsd_suppattrs[cstate->minorversion][0]; |
697 | getattr->ga_bmval[1] &= nfsd_suppattrs[cstate->minorversion][1]; | |
698 | getattr->ga_bmval[2] &= nfsd_suppattrs[cstate->minorversion][2]; | |
1da177e4 | 699 | |
ca364317 | 700 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
701 | return nfs_ok; |
702 | } | |
703 | ||
7191155b | 704 | static __be32 |
ca364317 | 705 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 706 | union nfsd4_op_u *u) |
1da177e4 | 707 | { |
eb69853d | 708 | struct nfsd4_link *link = &u->link; |
95424460 | 709 | __be32 status; |
1da177e4 | 710 | |
ca364317 BF |
711 | status = nfsd_link(rqstp, &cstate->current_fh, |
712 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 713 | if (!status) |
ca364317 | 714 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
715 | return status; |
716 | } | |
717 | ||
0ff7ab46 | 718 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
719 | { |
720 | struct svc_fh tmp_fh; | |
b37ad28b | 721 | __be32 ret; |
1da177e4 LT |
722 | |
723 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
724 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
725 | if (ret) | |
1da177e4 | 726 | return ret; |
0ff7ab46 | 727 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
728 | fh_put(&tmp_fh); |
729 | return nfserr_noent; | |
730 | } | |
731 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
732 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
733 | } | |
734 | ||
735 | static __be32 | |
736 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 737 | union nfsd4_op_u *u) |
0ff7ab46 BF |
738 | { |
739 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
740 | } |
741 | ||
7191155b | 742 | static __be32 |
ca364317 | 743 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 744 | union nfsd4_op_u *u) |
1da177e4 | 745 | { |
ca364317 | 746 | return nfsd_lookup(rqstp, &cstate->current_fh, |
eb69853d | 747 | u->lookup.lo_name, u->lookup.lo_len, |
ca364317 | 748 | &cstate->current_fh); |
1da177e4 LT |
749 | } |
750 | ||
7191155b | 751 | static __be32 |
ca364317 | 752 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 753 | union nfsd4_op_u *u) |
1da177e4 | 754 | { |
eb69853d | 755 | struct nfsd4_read *read = &u->read; |
b37ad28b | 756 | __be32 status; |
1da177e4 | 757 | |
7e06b7f9 | 758 | read->rd_filp = NULL; |
1da177e4 LT |
759 | if (read->rd_offset >= OFFSET_MAX) |
760 | return nfserr_inval; | |
761 | ||
87c5942e CL |
762 | trace_nfsd_read_start(rqstp, &cstate->current_fh, |
763 | read->rd_offset, read->rd_length); | |
764 | ||
9b3234b9 BF |
765 | /* |
766 | * If we do a zero copy read, then a client will see read data | |
767 | * that reflects the state of the file *after* performing the | |
768 | * following compound. | |
769 | * | |
770 | * To ensure proper ordering, we therefore turn off zero copy if | |
771 | * the client wants us to do more in this compound: | |
772 | */ | |
773 | if (!nfsd4_last_compound_op(rqstp)) | |
779fb0f3 | 774 | clear_bit(RQ_SPLICE_OK, &rqstp->rq_flags); |
9b3234b9 | 775 | |
1da177e4 | 776 | /* check stateid */ |
aa0d6aed AS |
777 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
778 | &read->rd_stateid, RD_STATE, | |
779 | &read->rd_filp, &read->rd_tmp_file); | |
af90f707 | 780 | if (status) { |
1da177e4 LT |
781 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
782 | goto out; | |
783 | } | |
784 | status = nfs_ok; | |
785 | out: | |
1da177e4 | 786 | read->rd_rqstp = rqstp; |
ca364317 | 787 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
788 | return status; |
789 | } | |
790 | ||
34b1744c BF |
791 | |
792 | static void | |
793 | nfsd4_read_release(union nfsd4_op_u *u) | |
794 | { | |
795 | if (u->read.rd_filp) | |
796 | fput(u->read.rd_filp); | |
87c5942e CL |
797 | trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp, |
798 | u->read.rd_offset, u->read.rd_length); | |
34b1744c BF |
799 | } |
800 | ||
7191155b | 801 | static __be32 |
ca364317 | 802 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 803 | union nfsd4_op_u *u) |
1da177e4 | 804 | { |
eb69853d | 805 | struct nfsd4_readdir *readdir = &u->readdir; |
1da177e4 LT |
806 | u64 cookie = readdir->rd_cookie; |
807 | static const nfs4_verifier zeroverf; | |
808 | ||
809 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
810 | ||
811 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
812 | return nfserr_inval; | |
813 | ||
916d2d84 BF |
814 | readdir->rd_bmval[0] &= nfsd_suppattrs[cstate->minorversion][0]; |
815 | readdir->rd_bmval[1] &= nfsd_suppattrs[cstate->minorversion][1]; | |
816 | readdir->rd_bmval[2] &= nfsd_suppattrs[cstate->minorversion][2]; | |
1da177e4 | 817 | |
832023bf | 818 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
819 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
820 | return nfserr_bad_cookie; | |
821 | ||
822 | readdir->rd_rqstp = rqstp; | |
ca364317 | 823 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
824 | return nfs_ok; |
825 | } | |
826 | ||
7191155b | 827 | static __be32 |
ca364317 | 828 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 829 | union nfsd4_op_u *u) |
1da177e4 | 830 | { |
eb69853d CH |
831 | u->readlink.rl_rqstp = rqstp; |
832 | u->readlink.rl_fhp = &cstate->current_fh; | |
1da177e4 LT |
833 | return nfs_ok; |
834 | } | |
835 | ||
7191155b | 836 | static __be32 |
ca364317 | 837 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 838 | union nfsd4_op_u *u) |
1da177e4 | 839 | { |
eb69853d | 840 | struct nfsd4_remove *remove = &u->remove; |
b37ad28b | 841 | __be32 status; |
1da177e4 | 842 | |
c87fb4a3 | 843 | if (opens_in_grace(SVC_NET(rqstp))) |
c815afc7 | 844 | return nfserr_grace; |
ca364317 BF |
845 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
846 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 847 | if (!status) { |
ca364317 BF |
848 | fh_unlock(&cstate->current_fh); |
849 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
850 | } |
851 | return status; | |
852 | } | |
853 | ||
7191155b | 854 | static __be32 |
ca364317 | 855 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 856 | union nfsd4_op_u *u) |
1da177e4 | 857 | { |
eb69853d | 858 | struct nfsd4_rename *rename = &u->rename; |
95424460 | 859 | __be32 status; |
1da177e4 | 860 | |
c87fb4a3 | 861 | if (opens_in_grace(SVC_NET(rqstp)) && |
5ccb0066 | 862 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) |
c815afc7 | 863 | return nfserr_grace; |
ca364317 BF |
864 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
865 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 | 866 | rename->rn_tname, rename->rn_tnamelen); |
2a6cf944 BF |
867 | if (status) |
868 | return status; | |
869 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); | |
870 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
871 | return nfs_ok; | |
1da177e4 LT |
872 | } |
873 | ||
dcb488a3 AA |
874 | static __be32 |
875 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 876 | union nfsd4_op_u *u) |
dcb488a3 | 877 | { |
eb69853d | 878 | struct nfsd4_secinfo *secinfo = &u->secinfo; |
dcb488a3 AA |
879 | struct svc_export *exp; |
880 | struct dentry *dentry; | |
881 | __be32 err; | |
882 | ||
29a78a3e BF |
883 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
884 | if (err) | |
885 | return err; | |
dcb488a3 AA |
886 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
887 | secinfo->si_name, secinfo->si_namelen, | |
888 | &exp, &dentry); | |
889 | if (err) | |
890 | return err; | |
2f6fc056 | 891 | fh_unlock(&cstate->current_fh); |
2b0143b5 | 892 | if (d_really_is_negative(dentry)) { |
dcb488a3 AA |
893 | exp_put(exp); |
894 | err = nfserr_noent; | |
895 | } else | |
896 | secinfo->si_exp = exp; | |
897 | dput(dentry); | |
56560b9a BF |
898 | if (cstate->minorversion) |
899 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
900 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
901 | return err; |
902 | } | |
903 | ||
04f4ad16 BF |
904 | static __be32 |
905 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 906 | union nfsd4_op_u *u) |
04f4ad16 BF |
907 | { |
908 | __be32 err; | |
909 | ||
eb69853d | 910 | switch (u->secinfo_no_name.sin_style) { |
04f4ad16 BF |
911 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
912 | break; | |
913 | case NFS4_SECINFO_STYLE4_PARENT: | |
914 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
915 | if (err) | |
916 | return err; | |
917 | break; | |
918 | default: | |
919 | return nfserr_inval; | |
920 | } | |
bf18f163 | 921 | |
eb69853d | 922 | u->secinfo_no_name.sin_exp = exp_get(cstate->current_fh.fh_export); |
04f4ad16 BF |
923 | fh_put(&cstate->current_fh); |
924 | return nfs_ok; | |
925 | } | |
926 | ||
34b1744c BF |
927 | static void |
928 | nfsd4_secinfo_release(union nfsd4_op_u *u) | |
929 | { | |
930 | if (u->secinfo.si_exp) | |
931 | exp_put(u->secinfo.si_exp); | |
932 | } | |
933 | ||
ec572b9e EG |
934 | static void |
935 | nfsd4_secinfo_no_name_release(union nfsd4_op_u *u) | |
936 | { | |
937 | if (u->secinfo_no_name.sin_exp) | |
938 | exp_put(u->secinfo_no_name.sin_exp); | |
939 | } | |
940 | ||
7191155b | 941 | static __be32 |
ca364317 | 942 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 943 | union nfsd4_op_u *u) |
1da177e4 | 944 | { |
eb69853d | 945 | struct nfsd4_setattr *setattr = &u->setattr; |
b37ad28b | 946 | __be32 status = nfs_ok; |
96f6f985 | 947 | int err; |
1da177e4 | 948 | |
1da177e4 | 949 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
af90f707 | 950 | status = nfs4_preprocess_stateid_op(rqstp, cstate, |
aa0d6aed AS |
951 | &cstate->current_fh, &setattr->sa_stateid, |
952 | WR_STATE, NULL, NULL); | |
375c5547 | 953 | if (status) { |
3e3b4800 | 954 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
955 | return status; |
956 | } | |
1da177e4 | 957 | } |
96f6f985 AV |
958 | err = fh_want_write(&cstate->current_fh); |
959 | if (err) | |
960 | return nfserrno(err); | |
1da177e4 | 961 | status = nfs_ok; |
3c8e0316 YZ |
962 | |
963 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
964 | nfsd_attrmask); | |
965 | if (status) | |
966 | goto out; | |
967 | ||
1da177e4 | 968 | if (setattr->sa_acl != NULL) |
ca364317 BF |
969 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
970 | setattr->sa_acl); | |
1da177e4 | 971 | if (status) |
18f335af | 972 | goto out; |
18032ca0 DQ |
973 | if (setattr->sa_label.len) |
974 | status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh, | |
975 | &setattr->sa_label); | |
976 | if (status) | |
977 | goto out; | |
ca364317 | 978 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 979 | 0, (time_t)0); |
18f335af | 980 | out: |
bad0dcff | 981 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
982 | return status; |
983 | } | |
984 | ||
ffe1137b BF |
985 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
986 | { | |
987 | int i = 1; | |
988 | int buflen = write->wr_buflen; | |
989 | ||
990 | vec[0].iov_base = write->wr_head.iov_base; | |
991 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); | |
992 | buflen -= vec[0].iov_len; | |
993 | ||
994 | while (buflen) { | |
995 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); | |
996 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); | |
997 | buflen -= vec[i].iov_len; | |
998 | i++; | |
999 | } | |
1000 | return i; | |
1001 | } | |
1002 | ||
7191155b | 1003 | static __be32 |
ca364317 | 1004 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 1005 | union nfsd4_op_u *u) |
1da177e4 | 1006 | { |
eb69853d | 1007 | struct nfsd4_write *write = &u->write; |
1da177e4 LT |
1008 | stateid_t *stateid = &write->wr_stateid; |
1009 | struct file *filp = NULL; | |
b37ad28b | 1010 | __be32 status = nfs_ok; |
31dec253 | 1011 | unsigned long cnt; |
ffe1137b | 1012 | int nvecs; |
1da177e4 | 1013 | |
1da177e4 LT |
1014 | if (write->wr_offset >= OFFSET_MAX) |
1015 | return nfserr_inval; | |
1016 | ||
d890be15 CL |
1017 | cnt = write->wr_buflen; |
1018 | trace_nfsd_write_start(rqstp, &cstate->current_fh, | |
1019 | write->wr_offset, cnt); | |
aa0d6aed AS |
1020 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
1021 | stateid, WR_STATE, &filp, NULL); | |
375c5547 BF |
1022 | if (status) { |
1023 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
1024 | return status; | |
1025 | } | |
1026 | ||
1da177e4 | 1027 | write->wr_how_written = write->wr_stable_how; |
b9c0ef85 | 1028 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
1da177e4 | 1029 | |
ffe1137b BF |
1030 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
1031 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); | |
1032 | ||
af90f707 CH |
1033 | status = nfsd_vfs_write(rqstp, &cstate->current_fh, filp, |
1034 | write->wr_offset, rqstp->rq_vec, nvecs, &cnt, | |
54bbb7d2 | 1035 | write->wr_how_written); |
af90f707 | 1036 | fput(filp); |
1da177e4 | 1037 | |
31dec253 | 1038 | write->wr_bytes_written = cnt; |
d890be15 CL |
1039 | trace_nfsd_write_done(rqstp, &cstate->current_fh, |
1040 | write->wr_offset, cnt); | |
1da177e4 | 1041 | return status; |
1da177e4 LT |
1042 | } |
1043 | ||
ffa0160a | 1044 | static __be32 |
29ae7f9d AS |
1045 | nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
1046 | stateid_t *src_stateid, struct file **src, | |
1047 | stateid_t *dst_stateid, struct file **dst) | |
ffa0160a | 1048 | { |
ffa0160a CH |
1049 | __be32 status; |
1050 | ||
1051 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->save_fh, | |
29ae7f9d | 1052 | src_stateid, RD_STATE, src, NULL); |
ffa0160a CH |
1053 | if (status) { |
1054 | dprintk("NFSD: %s: couldn't process src stateid!\n", __func__); | |
1055 | goto out; | |
1056 | } | |
1057 | ||
1058 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, | |
29ae7f9d | 1059 | dst_stateid, WR_STATE, dst, NULL); |
ffa0160a CH |
1060 | if (status) { |
1061 | dprintk("NFSD: %s: couldn't process dst stateid!\n", __func__); | |
1062 | goto out_put_src; | |
1063 | } | |
1064 | ||
1065 | /* fix up for NFS-specific error code */ | |
29ae7f9d AS |
1066 | if (!S_ISREG(file_inode(*src)->i_mode) || |
1067 | !S_ISREG(file_inode(*dst)->i_mode)) { | |
ffa0160a CH |
1068 | status = nfserr_wrong_type; |
1069 | goto out_put_dst; | |
1070 | } | |
1071 | ||
29ae7f9d AS |
1072 | out: |
1073 | return status; | |
1074 | out_put_dst: | |
1075 | fput(*dst); | |
1076 | out_put_src: | |
1077 | fput(*src); | |
1078 | goto out; | |
1079 | } | |
1080 | ||
1081 | static __be32 | |
1082 | nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1083 | union nfsd4_op_u *u) |
29ae7f9d | 1084 | { |
eb69853d | 1085 | struct nfsd4_clone *clone = &u->clone; |
29ae7f9d AS |
1086 | struct file *src, *dst; |
1087 | __be32 status; | |
1088 | ||
1089 | status = nfsd4_verify_copy(rqstp, cstate, &clone->cl_src_stateid, &src, | |
1090 | &clone->cl_dst_stateid, &dst); | |
1091 | if (status) | |
1092 | goto out; | |
1093 | ||
ffa0160a CH |
1094 | status = nfsd4_clone_file_range(src, clone->cl_src_pos, |
1095 | dst, clone->cl_dst_pos, clone->cl_count); | |
1096 | ||
ffa0160a | 1097 | fput(dst); |
ffa0160a CH |
1098 | fput(src); |
1099 | out: | |
1100 | return status; | |
1101 | } | |
1102 | ||
29ae7f9d AS |
1103 | static __be32 |
1104 | nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1105 | union nfsd4_op_u *u) |
29ae7f9d | 1106 | { |
eb69853d | 1107 | struct nfsd4_copy *copy = &u->copy; |
29ae7f9d AS |
1108 | struct file *src, *dst; |
1109 | __be32 status; | |
1110 | ssize_t bytes; | |
1111 | ||
1112 | status = nfsd4_verify_copy(rqstp, cstate, ©->cp_src_stateid, &src, | |
1113 | ©->cp_dst_stateid, &dst); | |
1114 | if (status) | |
1115 | goto out; | |
1116 | ||
1117 | bytes = nfsd_copy_file_range(src, copy->cp_src_pos, | |
1118 | dst, copy->cp_dst_pos, copy->cp_count); | |
1119 | ||
1120 | if (bytes < 0) | |
1121 | status = nfserrno(bytes); | |
1122 | else { | |
1123 | copy->cp_res.wr_bytes_written = bytes; | |
1124 | copy->cp_res.wr_stable_how = NFS_UNSTABLE; | |
29ae7f9d AS |
1125 | copy->cp_synchronous = 1; |
1126 | gen_boot_verifier(©->cp_res.wr_verifier, SVC_NET(rqstp)); | |
1127 | status = nfs_ok; | |
1128 | } | |
1129 | ||
1130 | fput(src); | |
1131 | fput(dst); | |
1132 | out: | |
1133 | return status; | |
1134 | } | |
1135 | ||
95d871f0 AS |
1136 | static __be32 |
1137 | nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
1138 | struct nfsd4_fallocate *fallocate, int flags) | |
1139 | { | |
1140 | __be32 status = nfserr_notsupp; | |
1141 | struct file *file; | |
1142 | ||
aa0d6aed | 1143 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
95d871f0 | 1144 | &fallocate->falloc_stateid, |
af90f707 | 1145 | WR_STATE, &file, NULL); |
95d871f0 AS |
1146 | if (status != nfs_ok) { |
1147 | dprintk("NFSD: nfsd4_fallocate: couldn't process stateid!\n"); | |
1148 | return status; | |
1149 | } | |
1150 | ||
1151 | status = nfsd4_vfs_fallocate(rqstp, &cstate->current_fh, file, | |
1152 | fallocate->falloc_offset, | |
1153 | fallocate->falloc_length, | |
1154 | flags); | |
1155 | fput(file); | |
1156 | return status; | |
1157 | } | |
1158 | ||
1159 | static __be32 | |
1160 | nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1161 | union nfsd4_op_u *u) |
95d871f0 | 1162 | { |
eb69853d | 1163 | return nfsd4_fallocate(rqstp, cstate, &u->allocate, 0); |
95d871f0 AS |
1164 | } |
1165 | ||
b0cb9085 AS |
1166 | static __be32 |
1167 | nfsd4_deallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1168 | union nfsd4_op_u *u) |
b0cb9085 | 1169 | { |
eb69853d | 1170 | return nfsd4_fallocate(rqstp, cstate, &u->deallocate, |
b0cb9085 AS |
1171 | FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE); |
1172 | } | |
1173 | ||
24bab491 AS |
1174 | static __be32 |
1175 | nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1176 | union nfsd4_op_u *u) |
24bab491 | 1177 | { |
eb69853d | 1178 | struct nfsd4_seek *seek = &u->seek; |
24bab491 AS |
1179 | int whence; |
1180 | __be32 status; | |
1181 | struct file *file; | |
1182 | ||
aa0d6aed | 1183 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
24bab491 | 1184 | &seek->seek_stateid, |
af90f707 | 1185 | RD_STATE, &file, NULL); |
24bab491 AS |
1186 | if (status) { |
1187 | dprintk("NFSD: nfsd4_seek: couldn't process stateid!\n"); | |
1188 | return status; | |
1189 | } | |
1190 | ||
1191 | switch (seek->seek_whence) { | |
1192 | case NFS4_CONTENT_DATA: | |
1193 | whence = SEEK_DATA; | |
1194 | break; | |
1195 | case NFS4_CONTENT_HOLE: | |
1196 | whence = SEEK_HOLE; | |
1197 | break; | |
1198 | default: | |
1199 | status = nfserr_union_notsupp; | |
1200 | goto out; | |
1201 | } | |
1202 | ||
1203 | /* | |
1204 | * Note: This call does change file->f_pos, but nothing in NFSD | |
1205 | * should ever file->f_pos. | |
1206 | */ | |
1207 | seek->seek_pos = vfs_llseek(file, seek->seek_offset, whence); | |
1208 | if (seek->seek_pos < 0) | |
1209 | status = nfserrno(seek->seek_pos); | |
1210 | else if (seek->seek_pos >= i_size_read(file_inode(file))) | |
1211 | seek->seek_eof = true; | |
1212 | ||
1213 | out: | |
1214 | fput(file); | |
1215 | return status; | |
1216 | } | |
1217 | ||
1da177e4 LT |
1218 | /* This routine never returns NFS_OK! If there are no other errors, it |
1219 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
1220 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
1221 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
1222 | */ | |
b37ad28b | 1223 | static __be32 |
c954e2a5 | 1224 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 1225 | struct nfsd4_verify *verify) |
1da177e4 | 1226 | { |
2ebbc012 | 1227 | __be32 *buf, *p; |
1da177e4 | 1228 | int count; |
b37ad28b | 1229 | __be32 status; |
1da177e4 | 1230 | |
8837abca | 1231 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
1232 | if (status) |
1233 | return status; | |
1234 | ||
3c8e0316 YZ |
1235 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
1236 | if (status) | |
1237 | return status; | |
1238 | ||
1da177e4 LT |
1239 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
1240 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
1241 | return nfserr_inval; | |
1242 | if (verify->ve_attrlen & 3) | |
1243 | return nfserr_inval; | |
1244 | ||
1245 | /* count in words: | |
1246 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
1247 | */ | |
1248 | count = 4 + (verify->ve_attrlen >> 2); | |
1249 | buf = kmalloc(count << 2, GFP_KERNEL); | |
1250 | if (!buf) | |
3e772463 | 1251 | return nfserr_jukebox; |
1da177e4 | 1252 | |
84822d0b | 1253 | p = buf; |
d5184658 | 1254 | status = nfsd4_encode_fattr_to_buf(&p, count, &cstate->current_fh, |
ca364317 | 1255 | cstate->current_fh.fh_export, |
d5184658 BF |
1256 | cstate->current_fh.fh_dentry, |
1257 | verify->ve_bmval, | |
406a7ea9 | 1258 | rqstp, 0); |
41ae6e71 BF |
1259 | /* |
1260 | * If nfsd4_encode_fattr() ran out of space, assume that's because | |
1261 | * the attributes are longer (hence different) than those given: | |
1262 | */ | |
84822d0b | 1263 | if (status == nfserr_resource) |
1da177e4 LT |
1264 | status = nfserr_not_same; |
1265 | if (status) | |
1266 | goto out_kfree; | |
1267 | ||
95ec28cd BH |
1268 | /* skip bitmap */ |
1269 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
1270 | status = nfserr_not_same; |
1271 | if (ntohl(*p++) != verify->ve_attrlen) | |
1272 | goto out_kfree; | |
1273 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
1274 | status = nfserr_same; | |
1275 | ||
1276 | out_kfree: | |
1277 | kfree(buf); | |
1278 | return status; | |
1279 | } | |
1280 | ||
c954e2a5 BF |
1281 | static __be32 |
1282 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1283 | union nfsd4_op_u *u) |
c954e2a5 BF |
1284 | { |
1285 | __be32 status; | |
1286 | ||
eb69853d | 1287 | status = _nfsd4_verify(rqstp, cstate, &u->verify); |
c954e2a5 BF |
1288 | return status == nfserr_not_same ? nfs_ok : status; |
1289 | } | |
1290 | ||
1291 | static __be32 | |
1292 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1293 | union nfsd4_op_u *u) |
c954e2a5 BF |
1294 | { |
1295 | __be32 status; | |
1296 | ||
eb69853d | 1297 | status = _nfsd4_verify(rqstp, cstate, &u->nverify); |
c954e2a5 BF |
1298 | return status == nfserr_same ? nfs_ok : status; |
1299 | } | |
1300 | ||
9cf514cc CH |
1301 | #ifdef CONFIG_NFSD_PNFS |
1302 | static const struct nfsd4_layout_ops * | |
1303 | nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type) | |
1304 | { | |
8a4c3926 | 1305 | if (!exp->ex_layout_types) { |
9cf514cc CH |
1306 | dprintk("%s: export does not support pNFS\n", __func__); |
1307 | return NULL; | |
1308 | } | |
1309 | ||
b550a32e AK |
1310 | if (layout_type >= LAYOUT_TYPE_MAX || |
1311 | !(exp->ex_layout_types & (1 << layout_type))) { | |
9cf514cc CH |
1312 | dprintk("%s: layout type %d not supported\n", |
1313 | __func__, layout_type); | |
1314 | return NULL; | |
1315 | } | |
1316 | ||
1317 | return nfsd4_layout_ops[layout_type]; | |
1318 | } | |
1319 | ||
1320 | static __be32 | |
1321 | nfsd4_getdeviceinfo(struct svc_rqst *rqstp, | |
eb69853d | 1322 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1323 | { |
eb69853d | 1324 | struct nfsd4_getdeviceinfo *gdp = &u->getdeviceinfo; |
9cf514cc CH |
1325 | const struct nfsd4_layout_ops *ops; |
1326 | struct nfsd4_deviceid_map *map; | |
1327 | struct svc_export *exp; | |
1328 | __be32 nfserr; | |
1329 | ||
1330 | dprintk("%s: layout_type %u dev_id [0x%llx:0x%x] maxcnt %u\n", | |
1331 | __func__, | |
1332 | gdp->gd_layout_type, | |
1333 | gdp->gd_devid.fsid_idx, gdp->gd_devid.generation, | |
1334 | gdp->gd_maxcount); | |
1335 | ||
1336 | map = nfsd4_find_devid_map(gdp->gd_devid.fsid_idx); | |
1337 | if (!map) { | |
1338 | dprintk("%s: couldn't find device ID to export mapping!\n", | |
1339 | __func__); | |
1340 | return nfserr_noent; | |
1341 | } | |
1342 | ||
1343 | exp = rqst_exp_find(rqstp, map->fsid_type, map->fsid); | |
1344 | if (IS_ERR(exp)) { | |
1345 | dprintk("%s: could not find device id\n", __func__); | |
1346 | return nfserr_noent; | |
1347 | } | |
1348 | ||
1349 | nfserr = nfserr_layoutunavailable; | |
1350 | ops = nfsd4_layout_verify(exp, gdp->gd_layout_type); | |
1351 | if (!ops) | |
1352 | goto out; | |
1353 | ||
1354 | nfserr = nfs_ok; | |
f99d4fbd CH |
1355 | if (gdp->gd_maxcount != 0) { |
1356 | nfserr = ops->proc_getdeviceinfo(exp->ex_path.mnt->mnt_sb, | |
d7c920d1 | 1357 | rqstp, cstate->session->se_client, gdp); |
f99d4fbd | 1358 | } |
9cf514cc CH |
1359 | |
1360 | gdp->gd_notify_types &= ops->notify_types; | |
9cf514cc | 1361 | out: |
a1420384 | 1362 | exp_put(exp); |
9cf514cc CH |
1363 | return nfserr; |
1364 | } | |
1365 | ||
34b1744c BF |
1366 | static void |
1367 | nfsd4_getdeviceinfo_release(union nfsd4_op_u *u) | |
1368 | { | |
1369 | kfree(u->getdeviceinfo.gd_device); | |
1370 | } | |
1371 | ||
9cf514cc CH |
1372 | static __be32 |
1373 | nfsd4_layoutget(struct svc_rqst *rqstp, | |
eb69853d | 1374 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1375 | { |
eb69853d | 1376 | struct nfsd4_layoutget *lgp = &u->layoutget; |
9cf514cc CH |
1377 | struct svc_fh *current_fh = &cstate->current_fh; |
1378 | const struct nfsd4_layout_ops *ops; | |
1379 | struct nfs4_layout_stateid *ls; | |
1380 | __be32 nfserr; | |
66282ec1 | 1381 | int accmode = NFSD_MAY_READ_IF_EXEC; |
9cf514cc CH |
1382 | |
1383 | switch (lgp->lg_seg.iomode) { | |
1384 | case IOMODE_READ: | |
66282ec1 | 1385 | accmode |= NFSD_MAY_READ; |
9cf514cc CH |
1386 | break; |
1387 | case IOMODE_RW: | |
66282ec1 | 1388 | accmode |= NFSD_MAY_READ | NFSD_MAY_WRITE; |
9cf514cc CH |
1389 | break; |
1390 | default: | |
1391 | dprintk("%s: invalid iomode %d\n", | |
1392 | __func__, lgp->lg_seg.iomode); | |
1393 | nfserr = nfserr_badiomode; | |
1394 | goto out; | |
1395 | } | |
1396 | ||
1397 | nfserr = fh_verify(rqstp, current_fh, 0, accmode); | |
1398 | if (nfserr) | |
1399 | goto out; | |
1400 | ||
1401 | nfserr = nfserr_layoutunavailable; | |
1402 | ops = nfsd4_layout_verify(current_fh->fh_export, lgp->lg_layout_type); | |
1403 | if (!ops) | |
1404 | goto out; | |
1405 | ||
1406 | /* | |
1407 | * Verify minlength and range as per RFC5661: | |
1408 | * o If loga_length is less than loga_minlength, | |
1409 | * the metadata server MUST return NFS4ERR_INVAL. | |
1410 | * o If the sum of loga_offset and loga_minlength exceeds | |
1411 | * NFS4_UINT64_MAX, and loga_minlength is not | |
1412 | * NFS4_UINT64_MAX, the error NFS4ERR_INVAL MUST result. | |
1413 | * o If the sum of loga_offset and loga_length exceeds | |
1414 | * NFS4_UINT64_MAX, and loga_length is not NFS4_UINT64_MAX, | |
1415 | * the error NFS4ERR_INVAL MUST result. | |
1416 | */ | |
1417 | nfserr = nfserr_inval; | |
1418 | if (lgp->lg_seg.length < lgp->lg_minlength || | |
1419 | (lgp->lg_minlength != NFS4_MAX_UINT64 && | |
1420 | lgp->lg_minlength > NFS4_MAX_UINT64 - lgp->lg_seg.offset) || | |
1421 | (lgp->lg_seg.length != NFS4_MAX_UINT64 && | |
1422 | lgp->lg_seg.length > NFS4_MAX_UINT64 - lgp->lg_seg.offset)) | |
1423 | goto out; | |
1424 | if (lgp->lg_seg.length == 0) | |
1425 | goto out; | |
1426 | ||
1427 | nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lgp->lg_sid, | |
1428 | true, lgp->lg_layout_type, &ls); | |
31ef83dc | 1429 | if (nfserr) { |
f394b62b | 1430 | trace_nfsd_layout_get_lookup_fail(&lgp->lg_sid); |
9cf514cc | 1431 | goto out; |
31ef83dc | 1432 | } |
9cf514cc | 1433 | |
c5c707f9 CH |
1434 | nfserr = nfserr_recallconflict; |
1435 | if (atomic_read(&ls->ls_stid.sc_file->fi_lo_recalls)) | |
1436 | goto out_put_stid; | |
1437 | ||
2b0143b5 | 1438 | nfserr = ops->proc_layoutget(d_inode(current_fh->fh_dentry), |
9cf514cc CH |
1439 | current_fh, lgp); |
1440 | if (nfserr) | |
1441 | goto out_put_stid; | |
1442 | ||
1443 | nfserr = nfsd4_insert_layout(lgp, ls); | |
1444 | ||
1445 | out_put_stid: | |
cc8a5532 | 1446 | mutex_unlock(&ls->ls_mutex); |
9cf514cc CH |
1447 | nfs4_put_stid(&ls->ls_stid); |
1448 | out: | |
1449 | return nfserr; | |
1450 | } | |
1451 | ||
34b1744c BF |
1452 | static void |
1453 | nfsd4_layoutget_release(union nfsd4_op_u *u) | |
1454 | { | |
1455 | kfree(u->layoutget.lg_content); | |
1456 | } | |
1457 | ||
9cf514cc CH |
1458 | static __be32 |
1459 | nfsd4_layoutcommit(struct svc_rqst *rqstp, | |
eb69853d | 1460 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1461 | { |
eb69853d | 1462 | struct nfsd4_layoutcommit *lcp = &u->layoutcommit; |
9cf514cc CH |
1463 | const struct nfsd4_layout_seg *seg = &lcp->lc_seg; |
1464 | struct svc_fh *current_fh = &cstate->current_fh; | |
1465 | const struct nfsd4_layout_ops *ops; | |
1466 | loff_t new_size = lcp->lc_last_wr + 1; | |
1467 | struct inode *inode; | |
1468 | struct nfs4_layout_stateid *ls; | |
1469 | __be32 nfserr; | |
1470 | ||
1471 | nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_WRITE); | |
1472 | if (nfserr) | |
1473 | goto out; | |
1474 | ||
1475 | nfserr = nfserr_layoutunavailable; | |
1476 | ops = nfsd4_layout_verify(current_fh->fh_export, lcp->lc_layout_type); | |
1477 | if (!ops) | |
1478 | goto out; | |
2b0143b5 | 1479 | inode = d_inode(current_fh->fh_dentry); |
9cf514cc CH |
1480 | |
1481 | nfserr = nfserr_inval; | |
1482 | if (new_size <= seg->offset) { | |
1483 | dprintk("pnfsd: last write before layout segment\n"); | |
1484 | goto out; | |
1485 | } | |
1486 | if (new_size > seg->offset + seg->length) { | |
1487 | dprintk("pnfsd: last write beyond layout segment\n"); | |
1488 | goto out; | |
1489 | } | |
1490 | if (!lcp->lc_newoffset && new_size > i_size_read(inode)) { | |
1491 | dprintk("pnfsd: layoutcommit beyond EOF\n"); | |
1492 | goto out; | |
1493 | } | |
1494 | ||
1495 | nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lcp->lc_sid, | |
1496 | false, lcp->lc_layout_type, | |
1497 | &ls); | |
1498 | if (nfserr) { | |
f394b62b | 1499 | trace_nfsd_layout_commit_lookup_fail(&lcp->lc_sid); |
9cf514cc CH |
1500 | /* fixup error code as per RFC5661 */ |
1501 | if (nfserr == nfserr_bad_stateid) | |
1502 | nfserr = nfserr_badlayout; | |
1503 | goto out; | |
1504 | } | |
1505 | ||
cc8a5532 JL |
1506 | /* LAYOUTCOMMIT does not require any serialization */ |
1507 | mutex_unlock(&ls->ls_mutex); | |
1508 | ||
9cf514cc CH |
1509 | if (new_size > i_size_read(inode)) { |
1510 | lcp->lc_size_chg = 1; | |
1511 | lcp->lc_newsize = new_size; | |
1512 | } else { | |
1513 | lcp->lc_size_chg = 0; | |
1514 | } | |
1515 | ||
d8398fc1 | 1516 | nfserr = ops->proc_layoutcommit(inode, lcp); |
9cf514cc CH |
1517 | nfs4_put_stid(&ls->ls_stid); |
1518 | out: | |
1519 | return nfserr; | |
1520 | } | |
1521 | ||
1522 | static __be32 | |
1523 | nfsd4_layoutreturn(struct svc_rqst *rqstp, | |
eb69853d | 1524 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1525 | { |
eb69853d | 1526 | struct nfsd4_layoutreturn *lrp = &u->layoutreturn; |
9cf514cc CH |
1527 | struct svc_fh *current_fh = &cstate->current_fh; |
1528 | __be32 nfserr; | |
1529 | ||
1530 | nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_NOP); | |
1531 | if (nfserr) | |
1532 | goto out; | |
1533 | ||
1534 | nfserr = nfserr_layoutunavailable; | |
1535 | if (!nfsd4_layout_verify(current_fh->fh_export, lrp->lr_layout_type)) | |
1536 | goto out; | |
1537 | ||
1538 | switch (lrp->lr_seg.iomode) { | |
1539 | case IOMODE_READ: | |
1540 | case IOMODE_RW: | |
1541 | case IOMODE_ANY: | |
1542 | break; | |
1543 | default: | |
1544 | dprintk("%s: invalid iomode %d\n", __func__, | |
1545 | lrp->lr_seg.iomode); | |
1546 | nfserr = nfserr_inval; | |
1547 | goto out; | |
1548 | } | |
1549 | ||
1550 | switch (lrp->lr_return_type) { | |
1551 | case RETURN_FILE: | |
1552 | nfserr = nfsd4_return_file_layouts(rqstp, cstate, lrp); | |
1553 | break; | |
1554 | case RETURN_FSID: | |
1555 | case RETURN_ALL: | |
1556 | nfserr = nfsd4_return_client_layouts(rqstp, cstate, lrp); | |
1557 | break; | |
1558 | default: | |
1559 | dprintk("%s: invalid return_type %d\n", __func__, | |
1560 | lrp->lr_return_type); | |
1561 | nfserr = nfserr_inval; | |
1562 | break; | |
1563 | } | |
1564 | out: | |
1565 | return nfserr; | |
1566 | } | |
1567 | #endif /* CONFIG_NFSD_PNFS */ | |
1568 | ||
1da177e4 LT |
1569 | /* |
1570 | * NULL call. | |
1571 | */ | |
7111c66e | 1572 | static __be32 |
a6beb732 | 1573 | nfsd4_proc_null(struct svc_rqst *rqstp) |
1da177e4 LT |
1574 | { |
1575 | return nfs_ok; | |
1576 | } | |
1577 | ||
e2b20950 SA |
1578 | static inline void nfsd4_increment_op_stats(u32 opnum) |
1579 | { | |
1580 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1581 | nfsdstats.nfs4_opcount[opnum]++; | |
1582 | } | |
1583 | ||
bb2a8b0c | 1584 | static const struct nfsd4_operation nfsd4_ops[]; |
b591480b | 1585 | |
f1c7f79b | 1586 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1587 | |
f9bb94c4 | 1588 | /* |
57716355 | 1589 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1590 | * |
57716355 BF |
1591 | * Also note, enforced elsewhere: |
1592 | * - SEQUENCE other than as first op results in | |
1593 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1594 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1595 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1596 | * - DESTROY_SESSION must be the final operation in a compound, if |
1597 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1598 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1599 | */ |
57716355 | 1600 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1601 | { |
57716355 BF |
1602 | struct nfsd4_op *op = &args->ops[0]; |
1603 | ||
1604 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1605 | if (args->minorversion == 0) | |
1606 | return nfs_ok; | |
1607 | /* This is weird, but OK, not our problem: */ | |
1608 | if (args->opcnt == 0) | |
1609 | return nfs_ok; | |
1610 | if (op->status == nfserr_op_illegal) | |
1611 | return nfs_ok; | |
1612 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1613 | return nfserr_op_not_in_session; | |
1614 | if (op->opnum == OP_SEQUENCE) | |
1615 | return nfs_ok; | |
1616 | if (args->opcnt != 1) | |
1617 | return nfserr_not_only_op; | |
1618 | return nfs_ok; | |
f9bb94c4 AA |
1619 | } |
1620 | ||
f4f9ef4a | 1621 | const struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
22b03214 BF |
1622 | { |
1623 | return &nfsd4_ops[op->opnum]; | |
1624 | } | |
1625 | ||
1091006c BF |
1626 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1627 | { | |
e372ba60 BF |
1628 | if (op->opnum == OP_ILLEGAL) |
1629 | return false; | |
c856694e | 1630 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1631 | } |
1632 | ||
68d93184 BF |
1633 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1634 | { | |
1635 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1636 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1637 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1638 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
bb2a8b0c CH |
1639 | const struct nfsd4_operation *thisd = OPDESC(this); |
1640 | const struct nfsd4_operation *nextd; | |
68d93184 | 1641 | |
68d93184 BF |
1642 | /* |
1643 | * Most ops check wronsec on our own; only the putfh-like ops | |
1644 | * have special rules. | |
1645 | */ | |
1646 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1647 | return false; | |
1648 | /* | |
1649 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1650 | * put-filehandle operation if we're not going to use the | |
1651 | * result: | |
1652 | */ | |
1653 | if (argp->opcnt == resp->opcnt) | |
1654 | return false; | |
51904b08 BF |
1655 | if (next->opnum == OP_ILLEGAL) |
1656 | return false; | |
68d93184 BF |
1657 | nextd = OPDESC(next); |
1658 | /* | |
1659 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1660 | * errors themselves as necessary; others should check for them | |
1661 | * now: | |
1662 | */ | |
1663 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1664 | } | |
1665 | ||
2d124dfa BF |
1666 | static void svcxdr_init_encode(struct svc_rqst *rqstp, |
1667 | struct nfsd4_compoundres *resp) | |
1668 | { | |
1669 | struct xdr_stream *xdr = &resp->xdr; | |
1670 | struct xdr_buf *buf = &rqstp->rq_res; | |
1671 | struct kvec *head = buf->head; | |
1672 | ||
1673 | xdr->buf = buf; | |
ddd1ea56 | 1674 | xdr->iov = head; |
2d124dfa | 1675 | xdr->p = head->iov_base + head->iov_len; |
a5cddc88 | 1676 | xdr->end = head->iov_base + PAGE_SIZE - rqstp->rq_auth_slack; |
6ac90391 BF |
1677 | /* Tail and page_len should be zero at this point: */ |
1678 | buf->len = buf->head[0].iov_len; | |
2825a7f9 | 1679 | xdr->scratch.iov_len = 0; |
05638dc7 | 1680 | xdr->page_ptr = buf->pages - 1; |
2825a7f9 | 1681 | buf->buflen = PAGE_SIZE * (1 + rqstp->rq_page_end - buf->pages) |
a5cddc88 | 1682 | - rqstp->rq_auth_slack; |
2d124dfa BF |
1683 | } |
1684 | ||
1da177e4 LT |
1685 | /* |
1686 | * COMPOUND call. | |
1687 | */ | |
7111c66e | 1688 | static __be32 |
a6beb732 | 1689 | nfsd4_proc_compound(struct svc_rqst *rqstp) |
1da177e4 | 1690 | { |
a6beb732 CH |
1691 | struct nfsd4_compoundargs *args = rqstp->rq_argp; |
1692 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1da177e4 | 1693 | struct nfsd4_op *op; |
e354d571 | 1694 | struct nfsd4_compound_state *cstate = &resp->cstate; |
4daeed25 KM |
1695 | struct svc_fh *current_fh = &cstate->current_fh; |
1696 | struct svc_fh *save_fh = &cstate->save_fh; | |
b37ad28b | 1697 | __be32 status; |
1da177e4 | 1698 | |
2d124dfa | 1699 | svcxdr_init_encode(rqstp, resp); |
4aea24b2 | 1700 | resp->tagp = resp->xdr.p; |
1da177e4 | 1701 | /* reserve space for: taglen, tag, and opcnt */ |
d3f627c8 | 1702 | xdr_reserve_space(&resp->xdr, 8 + args->taglen); |
1da177e4 LT |
1703 | resp->taglen = args->taglen; |
1704 | resp->tag = args->tag; | |
1da177e4 | 1705 | resp->rqstp = rqstp; |
4daeed25 | 1706 | cstate->minorversion = args->minorversion; |
4daeed25 KM |
1707 | fh_init(current_fh, NFS4_FHSIZE); |
1708 | fh_init(save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1709 | /* |
1710 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1711 | * too hard to avoid non-idempotency problems. | |
1712 | */ | |
30660e04 | 1713 | clear_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); |
1da177e4 LT |
1714 | |
1715 | /* | |
1716 | * According to RFC3010, this takes precedence over all other errors. | |
1717 | */ | |
1718 | status = nfserr_minor_vers_mismatch; | |
35f7a14f | 1719 | if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0) |
1da177e4 | 1720 | goto out; |
0078117c BF |
1721 | status = nfserr_resource; |
1722 | if (args->opcnt > NFSD_MAX_OPS_PER_COMPOUND) | |
1723 | goto out; | |
1da177e4 | 1724 | |
57716355 BF |
1725 | status = nfs41_check_op_ordering(args); |
1726 | if (status) { | |
f9bb94c4 | 1727 | op = &args->ops[0]; |
57716355 | 1728 | op->status = status; |
f9bb94c4 AA |
1729 | goto encode_op; |
1730 | } | |
1731 | ||
fff4080b | 1732 | trace_nfsd_compound(rqstp, args->opcnt); |
1da177e4 LT |
1733 | while (!status && resp->opcnt < args->opcnt) { |
1734 | op = &args->ops[resp->opcnt++]; | |
1735 | ||
1736 | /* | |
1737 | * The XDR decode routines may have pre-set op->status; | |
1738 | * for example, if there is a miscellaneous XDR error | |
1739 | * it will be set to nfserr_bad_xdr. | |
1740 | */ | |
9d313b17 BF |
1741 | if (op->status) { |
1742 | if (op->opnum == OP_OPEN) | |
1743 | op->status = nfsd4_open_omfg(rqstp, cstate, op); | |
1da177e4 | 1744 | goto encode_op; |
9d313b17 | 1745 | } |
1da177e4 | 1746 | |
4daeed25 | 1747 | if (!current_fh->fh_dentry) { |
f4f9ef4a | 1748 | if (!(op->opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1749 | op->status = nfserr_nofilehandle; |
1750 | goto encode_op; | |
1751 | } | |
4daeed25 | 1752 | } else if (current_fh->fh_export->ex_fslocs.migrated && |
f4f9ef4a | 1753 | !(op->opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
42ca0993 | 1754 | op->status = nfserr_moved; |
1da177e4 LT |
1755 | goto encode_op; |
1756 | } | |
b591480b | 1757 | |
2336745e KM |
1758 | fh_clear_wcc(current_fh); |
1759 | ||
58e7b33a | 1760 | /* If op is non-idempotent */ |
f4f9ef4a | 1761 | if (op->opdesc->op_flags & OP_MODIFIES_SOMETHING) { |
4c69d585 | 1762 | /* |
a8095f7e BF |
1763 | * Don't execute this op if we couldn't encode a |
1764 | * succesful reply: | |
1765 | */ | |
f4f9ef4a | 1766 | u32 plen = op->opdesc->op_rsize_bop(rqstp, op); |
a8095f7e BF |
1767 | /* |
1768 | * Plus if there's another operation, make sure | |
4c69d585 BF |
1769 | * we'll have space to at least encode an error: |
1770 | */ | |
1771 | if (resp->opcnt < args->opcnt) | |
1772 | plen += COMPOUND_ERR_SLACK_SPACE; | |
58e7b33a MJ |
1773 | op->status = nfsd4_check_resp_size(resp, plen); |
1774 | } | |
1775 | ||
1776 | if (op->status) | |
1777 | goto encode_op; | |
1778 | ||
f4f9ef4a BF |
1779 | if (op->opdesc->op_get_currentstateid) |
1780 | op->opdesc->op_get_currentstateid(cstate, &op->u); | |
1781 | op->status = op->opdesc->op_func(rqstp, cstate, &op->u); | |
1da177e4 | 1782 | |
9a307403 BF |
1783 | /* Only from SEQUENCE */ |
1784 | if (cstate->status == nfserr_replay_cache) { | |
1785 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
1786 | status = op->status; | |
1787 | goto out; | |
1788 | } | |
8b70484c | 1789 | if (!op->status) { |
f4f9ef4a BF |
1790 | if (op->opdesc->op_set_currentstateid) |
1791 | op->opdesc->op_set_currentstateid(cstate, &op->u); | |
8b70484c | 1792 | |
f4f9ef4a | 1793 | if (op->opdesc->op_flags & OP_CLEAR_STATEID) |
37c593c5 | 1794 | clear_current_stateid(cstate); |
8b70484c TM |
1795 | |
1796 | if (need_wrongsec_check(rqstp)) | |
4daeed25 | 1797 | op->status = check_nfsd_access(current_fh->fh_export, rqstp); |
8b70484c | 1798 | } |
1da177e4 | 1799 | encode_op: |
a90b061c | 1800 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1801 | op->replay = &cstate->replay_owner->so_replay; |
d0a381dd | 1802 | nfsd4_encode_replay(&resp->xdr, op); |
1da177e4 LT |
1803 | status = op->status = op->replay->rp_status; |
1804 | } else { | |
1805 | nfsd4_encode_operation(resp, op); | |
1806 | status = op->status; | |
1807 | } | |
0407717d | 1808 | |
fff4080b CL |
1809 | trace_nfsd_compound_status(args->opcnt, resp->opcnt, status, |
1810 | nfsd4_op_name(op->opnum)); | |
0407717d | 1811 | |
58fb12e6 | 1812 | nfsd4_cstate_clear_replay(cstate); |
e2b20950 | 1813 | nfsd4_increment_op_stats(op->opnum); |
1da177e4 LT |
1814 | } |
1815 | ||
4daeed25 KM |
1816 | cstate->status = status; |
1817 | fh_put(current_fh); | |
1818 | fh_put(save_fh); | |
1819 | BUG_ON(cstate->replay_owner); | |
1da177e4 | 1820 | out: |
2f425878 | 1821 | /* Reset deferral mechanism for RPC deferrals */ |
30660e04 | 1822 | set_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); |
3b12cd98 | 1823 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1824 | return status; |
1825 | } | |
1826 | ||
58e7b33a MJ |
1827 | #define op_encode_hdr_size (2) |
1828 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1829 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1830 | #define op_encode_change_info_maxsz (5) | |
1831 | #define nfs4_fattr_bitmap_maxsz (4) | |
1832 | ||
8c7424cf BF |
1833 | /* We'll fall back on returning no lockowner if run out of space: */ |
1834 | #define op_encode_lockowner_maxsz (0) | |
58e7b33a MJ |
1835 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) |
1836 | ||
1837 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1838 | ||
1839 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1840 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1841 | op_encode_ace_maxsz) | |
1842 | ||
1843 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1844 | ||
1845 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1846 | { | |
1847 | return (op_encode_hdr_size) * sizeof(__be32); | |
1848 | } | |
1849 | ||
1850 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1851 | { | |
1852 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1853 | } | |
1854 | ||
2282cd2c KM |
1855 | static inline u32 nfsd4_access_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1856 | { | |
1857 | /* ac_supported, ac_resp_access */ | |
1858 | return (op_encode_hdr_size + 2)* sizeof(__be32); | |
1859 | } | |
1860 | ||
58e7b33a MJ |
1861 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1862 | { | |
1863 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1864 | } | |
1865 | ||
1866 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1867 | { | |
1868 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1869 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1870 | } | |
1871 | ||
b86cef60 BF |
1872 | /* |
1873 | * Note since this is an idempotent operation we won't insist on failing | |
1874 | * the op prematurely if the estimate is too large. We may turn off splice | |
1875 | * reads unnecessarily. | |
1876 | */ | |
1877 | static inline u32 nfsd4_getattr_rsize(struct svc_rqst *rqstp, | |
1878 | struct nfsd4_op *op) | |
1879 | { | |
1880 | u32 *bmap = op->u.getattr.ga_bmval; | |
1881 | u32 bmap0 = bmap[0], bmap1 = bmap[1], bmap2 = bmap[2]; | |
1882 | u32 ret = 0; | |
1883 | ||
1884 | if (bmap0 & FATTR4_WORD0_ACL) | |
1885 | return svc_max_payload(rqstp); | |
1886 | if (bmap0 & FATTR4_WORD0_FS_LOCATIONS) | |
1887 | return svc_max_payload(rqstp); | |
1888 | ||
1889 | if (bmap1 & FATTR4_WORD1_OWNER) { | |
1890 | ret += IDMAP_NAMESZ + 4; | |
1891 | bmap1 &= ~FATTR4_WORD1_OWNER; | |
1892 | } | |
1893 | if (bmap1 & FATTR4_WORD1_OWNER_GROUP) { | |
1894 | ret += IDMAP_NAMESZ + 4; | |
1895 | bmap1 &= ~FATTR4_WORD1_OWNER_GROUP; | |
1896 | } | |
1897 | if (bmap0 & FATTR4_WORD0_FILEHANDLE) { | |
1898 | ret += NFS4_FHSIZE + 4; | |
1899 | bmap0 &= ~FATTR4_WORD0_FILEHANDLE; | |
1900 | } | |
1901 | if (bmap2 & FATTR4_WORD2_SECURITY_LABEL) { | |
1ec8c0c4 | 1902 | ret += NFS4_MAXLABELLEN + 12; |
b86cef60 BF |
1903 | bmap2 &= ~FATTR4_WORD2_SECURITY_LABEL; |
1904 | } | |
1905 | /* | |
1906 | * Largest of remaining attributes are 16 bytes (e.g., | |
1907 | * supported_attributes) | |
1908 | */ | |
1909 | ret += 16 * (hweight32(bmap0) + hweight32(bmap1) + hweight32(bmap2)); | |
1910 | /* bitmask, length */ | |
1911 | ret += 20; | |
1912 | return ret; | |
1913 | } | |
1914 | ||
2282cd2c KM |
1915 | static inline u32 nfsd4_getfh_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1916 | { | |
1917 | return (op_encode_hdr_size + 1) * sizeof(__be32) + NFS4_FHSIZE; | |
1918 | } | |
1919 | ||
58e7b33a MJ |
1920 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1921 | { | |
1922 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1923 | * sizeof(__be32); | |
1924 | } | |
1925 | ||
1926 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1927 | { | |
1928 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1929 | * sizeof(__be32); | |
1930 | } | |
1931 | ||
1932 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1933 | { | |
1934 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1935 | + op_encode_change_info_maxsz + 1 | |
1936 | + nfs4_fattr_bitmap_maxsz | |
1937 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1938 | } | |
1939 | ||
1940 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1941 | { | |
1942 | u32 maxcount = 0, rlen = 0; | |
1943 | ||
1944 | maxcount = svc_max_payload(rqstp); | |
3c7aa15d | 1945 | rlen = min(op->u.read.rd_length, maxcount); |
58e7b33a | 1946 | |
622f560e | 1947 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(rlen)) * sizeof(__be32); |
58e7b33a MJ |
1948 | } |
1949 | ||
1950 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1951 | { | |
3c7aa15d | 1952 | u32 maxcount = 0, rlen = 0; |
58e7b33a | 1953 | |
3c7aa15d KM |
1954 | maxcount = svc_max_payload(rqstp); |
1955 | rlen = min(op->u.readdir.rd_maxcount, maxcount); | |
58e7b33a | 1956 | |
561f0ed4 BF |
1957 | return (op_encode_hdr_size + op_encode_verifier_maxsz + |
1958 | XDR_QUADLEN(rlen)) * sizeof(__be32); | |
58e7b33a MJ |
1959 | } |
1960 | ||
2282cd2c KM |
1961 | static inline u32 nfsd4_readlink_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1962 | { | |
1963 | return (op_encode_hdr_size + 1) * sizeof(__be32) + PAGE_SIZE; | |
1964 | } | |
1965 | ||
58e7b33a MJ |
1966 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1967 | { | |
1968 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1969 | * sizeof(__be32); | |
1970 | } | |
1971 | ||
1972 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1973 | { | |
1974 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1975 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1976 | } | |
1977 | ||
ccae70a9 BF |
1978 | static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp, |
1979 | struct nfsd4_op *op) | |
1980 | { | |
d1d84c96 BF |
1981 | return (op_encode_hdr_size |
1982 | + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) * sizeof(__be32); | |
ccae70a9 BF |
1983 | } |
1984 | ||
2282cd2c KM |
1985 | static inline u32 nfsd4_test_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1986 | { | |
1987 | return (op_encode_hdr_size + 1 + op->u.test_stateid.ts_num_ids) | |
1988 | * sizeof(__be32); | |
1989 | } | |
1990 | ||
58e7b33a MJ |
1991 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1992 | { | |
1993 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1994 | } | |
1995 | ||
2282cd2c KM |
1996 | static inline u32 nfsd4_secinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1997 | { | |
1998 | return (op_encode_hdr_size + RPC_AUTH_MAXFLAVOR * | |
1999 | (4 + XDR_QUADLEN(GSS_OID_MAX_LEN))) * sizeof(__be32); | |
2000 | } | |
2001 | ||
58e7b33a MJ |
2002 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2003 | { | |
480efaee BF |
2004 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(NFS4_VERIFIER_SIZE)) * |
2005 | sizeof(__be32); | |
58e7b33a MJ |
2006 | } |
2007 | ||
2008 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2009 | { | |
f34e432b | 2010 | return (op_encode_hdr_size + 2 + op_encode_verifier_maxsz) * sizeof(__be32); |
58e7b33a MJ |
2011 | } |
2012 | ||
2013 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2014 | { | |
2015 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
a8bb84bc KM |
2016 | 1 + 1 + /* eir_flags, spr_how */\ |
2017 | 4 + /* spo_must_enforce & _allow with bitmap */\ | |
58e7b33a MJ |
2018 | 2 + /*eir_server_owner.so_minor_id */\ |
2019 | /* eir_server_owner.so_major_id<> */\ | |
2020 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
2021 | /* eir_server_scope<> */\ | |
2022 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
2023 | 1 + /* eir_server_impl_id array length */\ | |
2024 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
2025 | } | |
2026 | ||
2027 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2028 | { | |
2029 | return (op_encode_hdr_size + \ | |
2030 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
2031 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
2032 | } | |
2033 | ||
2034 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2035 | { | |
2036 | return (op_encode_hdr_size + \ | |
2037 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
2038 | 2 + /* csr_sequence, csr_flags */\ | |
2039 | op_encode_channel_attrs_maxsz + \ | |
2040 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
2041 | } | |
2042 | ||
29ae7f9d AS |
2043 | static inline u32 nfsd4_copy_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2044 | { | |
2045 | return (op_encode_hdr_size + | |
2046 | 1 /* wr_callback */ + | |
2047 | op_encode_stateid_maxsz /* wr_callback */ + | |
2048 | 2 /* wr_count */ + | |
2049 | 1 /* wr_committed */ + | |
2050 | op_encode_verifier_maxsz + | |
2051 | 1 /* cr_consecutive */ + | |
2052 | 1 /* cr_synchronous */) * sizeof(__be32); | |
2053 | } | |
2054 | ||
9cf514cc | 2055 | #ifdef CONFIG_NFSD_PNFS |
2282cd2c KM |
2056 | static inline u32 nfsd4_getdeviceinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2057 | { | |
2058 | u32 maxcount = 0, rlen = 0; | |
2059 | ||
2060 | maxcount = svc_max_payload(rqstp); | |
2061 | rlen = min(op->u.getdeviceinfo.gd_maxcount, maxcount); | |
2062 | ||
2063 | return (op_encode_hdr_size + | |
2064 | 1 /* gd_layout_type*/ + | |
2065 | XDR_QUADLEN(rlen) + | |
2066 | 2 /* gd_notify_types */) * sizeof(__be32); | |
2067 | } | |
2068 | ||
9cf514cc CH |
2069 | /* |
2070 | * At this stage we don't really know what layout driver will handle the request, | |
2071 | * so we need to define an arbitrary upper bound here. | |
2072 | */ | |
2073 | #define MAX_LAYOUT_SIZE 128 | |
2074 | static inline u32 nfsd4_layoutget_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2075 | { | |
2076 | return (op_encode_hdr_size + | |
2077 | 1 /* logr_return_on_close */ + | |
2078 | op_encode_stateid_maxsz + | |
2079 | 1 /* nr of layouts */ + | |
2080 | MAX_LAYOUT_SIZE) * sizeof(__be32); | |
2081 | } | |
2082 | ||
2083 | static inline u32 nfsd4_layoutcommit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2084 | { | |
2085 | return (op_encode_hdr_size + | |
2086 | 1 /* locr_newsize */ + | |
2087 | 2 /* ns_size */) * sizeof(__be32); | |
2088 | } | |
2089 | ||
2090 | static inline u32 nfsd4_layoutreturn_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2091 | { | |
2092 | return (op_encode_hdr_size + | |
2093 | 1 /* lrs_stateid */ + | |
2094 | op_encode_stateid_maxsz) * sizeof(__be32); | |
2095 | } | |
2096 | #endif /* CONFIG_NFSD_PNFS */ | |
2097 | ||
2282cd2c KM |
2098 | |
2099 | static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2100 | { | |
2101 | return (op_encode_hdr_size + 3) * sizeof(__be32); | |
2102 | } | |
2103 | ||
bb2a8b0c | 2104 | static const struct nfsd4_operation nfsd4_ops[] = { |
b591480b | 2105 | [OP_ACCESS] = { |
eb69853d | 2106 | .op_func = nfsd4_access, |
b001a1b6 | 2107 | .op_name = "OP_ACCESS", |
1c122638 | 2108 | .op_rsize_bop = nfsd4_access_rsize, |
b591480b BF |
2109 | }, |
2110 | [OP_CLOSE] = { | |
eb69853d | 2111 | .op_func = nfsd4_close, |
58e7b33a | 2112 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2113 | .op_name = "OP_CLOSE", |
1c122638 | 2114 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
57832e7b | 2115 | .op_get_currentstateid = nfsd4_get_closestateid, |
b60e9859 | 2116 | .op_set_currentstateid = nfsd4_set_closestateid, |
b591480b BF |
2117 | }, |
2118 | [OP_COMMIT] = { | |
eb69853d | 2119 | .op_func = nfsd4_commit, |
58e7b33a | 2120 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2121 | .op_name = "OP_COMMIT", |
1c122638 | 2122 | .op_rsize_bop = nfsd4_commit_rsize, |
b591480b BF |
2123 | }, |
2124 | [OP_CREATE] = { | |
eb69853d | 2125 | .op_func = nfsd4_create, |
d1471053 | 2126 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 2127 | .op_name = "OP_CREATE", |
1c122638 | 2128 | .op_rsize_bop = nfsd4_create_rsize, |
b591480b BF |
2129 | }, |
2130 | [OP_DELEGRETURN] = { | |
eb69853d | 2131 | .op_func = nfsd4_delegreturn, |
58e7b33a | 2132 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2133 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 2134 | .op_rsize_bop = nfsd4_only_status_rsize, |
57832e7b | 2135 | .op_get_currentstateid = nfsd4_get_delegreturnstateid, |
b591480b BF |
2136 | }, |
2137 | [OP_GETATTR] = { | |
eb69853d | 2138 | .op_func = nfsd4_getattr, |
eeac294e | 2139 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b86cef60 | 2140 | .op_rsize_bop = nfsd4_getattr_rsize, |
b001a1b6 | 2141 | .op_name = "OP_GETATTR", |
b591480b BF |
2142 | }, |
2143 | [OP_GETFH] = { | |
eb69853d | 2144 | .op_func = nfsd4_getfh, |
b001a1b6 | 2145 | .op_name = "OP_GETFH", |
1c122638 | 2146 | .op_rsize_bop = nfsd4_getfh_rsize, |
b591480b BF |
2147 | }, |
2148 | [OP_LINK] = { | |
eb69853d | 2149 | .op_func = nfsd4_link, |
c856694e BF |
2150 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
2151 | | OP_CACHEME, | |
b001a1b6 | 2152 | .op_name = "OP_LINK", |
1c122638 | 2153 | .op_rsize_bop = nfsd4_link_rsize, |
b591480b BF |
2154 | }, |
2155 | [OP_LOCK] = { | |
eb69853d | 2156 | .op_func = nfsd4_lock, |
b7571e4c BF |
2157 | .op_flags = OP_MODIFIES_SOMETHING | |
2158 | OP_NONTRIVIAL_ERROR_ENCODE, | |
b001a1b6 | 2159 | .op_name = "OP_LOCK", |
1c122638 | 2160 | .op_rsize_bop = nfsd4_lock_rsize, |
b60e9859 | 2161 | .op_set_currentstateid = nfsd4_set_lockstateid, |
b591480b BF |
2162 | }, |
2163 | [OP_LOCKT] = { | |
eb69853d | 2164 | .op_func = nfsd4_lockt, |
b7571e4c | 2165 | .op_flags = OP_NONTRIVIAL_ERROR_ENCODE, |
b001a1b6 | 2166 | .op_name = "OP_LOCKT", |
1c122638 | 2167 | .op_rsize_bop = nfsd4_lock_rsize, |
b591480b BF |
2168 | }, |
2169 | [OP_LOCKU] = { | |
eb69853d | 2170 | .op_func = nfsd4_locku, |
58e7b33a | 2171 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2172 | .op_name = "OP_LOCKU", |
1c122638 | 2173 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
57832e7b | 2174 | .op_get_currentstateid = nfsd4_get_lockustateid, |
b591480b BF |
2175 | }, |
2176 | [OP_LOOKUP] = { | |
eb69853d | 2177 | .op_func = nfsd4_lookup, |
d1471053 | 2178 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 2179 | .op_name = "OP_LOOKUP", |
1c122638 | 2180 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2181 | }, |
2182 | [OP_LOOKUPP] = { | |
eb69853d | 2183 | .op_func = nfsd4_lookupp, |
d1471053 | 2184 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 2185 | .op_name = "OP_LOOKUPP", |
1c122638 | 2186 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2187 | }, |
2188 | [OP_NVERIFY] = { | |
eb69853d | 2189 | .op_func = nfsd4_nverify, |
b001a1b6 | 2190 | .op_name = "OP_NVERIFY", |
1c122638 | 2191 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2192 | }, |
2193 | [OP_OPEN] = { | |
eb69853d | 2194 | .op_func = nfsd4_open, |
58e7b33a | 2195 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 2196 | .op_name = "OP_OPEN", |
1c122638 | 2197 | .op_rsize_bop = nfsd4_open_rsize, |
b60e9859 | 2198 | .op_set_currentstateid = nfsd4_set_openstateid, |
b591480b BF |
2199 | }, |
2200 | [OP_OPEN_CONFIRM] = { | |
eb69853d | 2201 | .op_func = nfsd4_open_confirm, |
58e7b33a | 2202 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2203 | .op_name = "OP_OPEN_CONFIRM", |
1c122638 | 2204 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
b591480b BF |
2205 | }, |
2206 | [OP_OPEN_DOWNGRADE] = { | |
eb69853d | 2207 | .op_func = nfsd4_open_downgrade, |
58e7b33a | 2208 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2209 | .op_name = "OP_OPEN_DOWNGRADE", |
1c122638 | 2210 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
57832e7b | 2211 | .op_get_currentstateid = nfsd4_get_opendowngradestateid, |
b60e9859 | 2212 | .op_set_currentstateid = nfsd4_set_opendowngradestateid, |
b591480b BF |
2213 | }, |
2214 | [OP_PUTFH] = { | |
eb69853d | 2215 | .op_func = nfsd4_putfh, |
68d93184 | 2216 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
5b648699 | 2217 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
b001a1b6 | 2218 | .op_name = "OP_PUTFH", |
1c122638 | 2219 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b | 2220 | }, |
eeac294e | 2221 | [OP_PUTPUBFH] = { |
eb69853d | 2222 | .op_func = nfsd4_putrootfh, |
68d93184 | 2223 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
5b648699 | 2224 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
b001a1b6 | 2225 | .op_name = "OP_PUTPUBFH", |
1c122638 | 2226 | .op_rsize_bop = nfsd4_only_status_rsize, |
eeac294e | 2227 | }, |
b591480b | 2228 | [OP_PUTROOTFH] = { |
eb69853d | 2229 | .op_func = nfsd4_putrootfh, |
68d93184 | 2230 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
5b648699 | 2231 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
b001a1b6 | 2232 | .op_name = "OP_PUTROOTFH", |
1c122638 | 2233 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2234 | }, |
2235 | [OP_READ] = { | |
eb69853d | 2236 | .op_func = nfsd4_read, |
34b1744c | 2237 | .op_release = nfsd4_read_release, |
b001a1b6 | 2238 | .op_name = "OP_READ", |
1c122638 | 2239 | .op_rsize_bop = nfsd4_read_rsize, |
57832e7b | 2240 | .op_get_currentstateid = nfsd4_get_readstateid, |
b591480b BF |
2241 | }, |
2242 | [OP_READDIR] = { | |
eb69853d | 2243 | .op_func = nfsd4_readdir, |
b001a1b6 | 2244 | .op_name = "OP_READDIR", |
1c122638 | 2245 | .op_rsize_bop = nfsd4_readdir_rsize, |
b591480b BF |
2246 | }, |
2247 | [OP_READLINK] = { | |
eb69853d | 2248 | .op_func = nfsd4_readlink, |
b001a1b6 | 2249 | .op_name = "OP_READLINK", |
1c122638 | 2250 | .op_rsize_bop = nfsd4_readlink_rsize, |
b591480b BF |
2251 | }, |
2252 | [OP_REMOVE] = { | |
eb69853d | 2253 | .op_func = nfsd4_remove, |
c856694e | 2254 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 2255 | .op_name = "OP_REMOVE", |
1c122638 | 2256 | .op_rsize_bop = nfsd4_remove_rsize, |
b591480b BF |
2257 | }, |
2258 | [OP_RENAME] = { | |
eb69853d | 2259 | .op_func = nfsd4_rename, |
c856694e | 2260 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 2261 | .op_name = "OP_RENAME", |
1c122638 | 2262 | .op_rsize_bop = nfsd4_rename_rsize, |
b591480b BF |
2263 | }, |
2264 | [OP_RENEW] = { | |
eb69853d | 2265 | .op_func = nfsd4_renew, |
58e7b33a MJ |
2266 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
2267 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 2268 | .op_name = "OP_RENEW", |
1c122638 | 2269 | .op_rsize_bop = nfsd4_only_status_rsize, |
58e7b33a | 2270 | |
b591480b BF |
2271 | }, |
2272 | [OP_RESTOREFH] = { | |
eb69853d | 2273 | .op_func = nfsd4_restorefh, |
68d93184 | 2274 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 2275 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 2276 | .op_name = "OP_RESTOREFH", |
1c122638 | 2277 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2278 | }, |
2279 | [OP_SAVEFH] = { | |
eb69853d | 2280 | .op_func = nfsd4_savefh, |
58e7b33a | 2281 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 2282 | .op_name = "OP_SAVEFH", |
1c122638 | 2283 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b | 2284 | }, |
dcb488a3 | 2285 | [OP_SECINFO] = { |
eb69853d | 2286 | .op_func = nfsd4_secinfo, |
34b1744c | 2287 | .op_release = nfsd4_secinfo_release, |
68d93184 | 2288 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 2289 | .op_name = "OP_SECINFO", |
1c122638 | 2290 | .op_rsize_bop = nfsd4_secinfo_rsize, |
dcb488a3 | 2291 | }, |
b591480b | 2292 | [OP_SETATTR] = { |
eb69853d | 2293 | .op_func = nfsd4_setattr, |
b001a1b6 | 2294 | .op_name = "OP_SETATTR", |
b7571e4c BF |
2295 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME |
2296 | | OP_NONTRIVIAL_ERROR_ENCODE, | |
1c122638 | 2297 | .op_rsize_bop = nfsd4_setattr_rsize, |
57832e7b | 2298 | .op_get_currentstateid = nfsd4_get_setattrstateid, |
b591480b BF |
2299 | }, |
2300 | [OP_SETCLIENTID] = { | |
eb69853d | 2301 | .op_func = nfsd4_setclientid, |
58e7b33a | 2302 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
b7571e4c BF |
2303 | | OP_MODIFIES_SOMETHING | OP_CACHEME |
2304 | | OP_NONTRIVIAL_ERROR_ENCODE, | |
b001a1b6 | 2305 | .op_name = "OP_SETCLIENTID", |
1c122638 | 2306 | .op_rsize_bop = nfsd4_setclientid_rsize, |
b591480b BF |
2307 | }, |
2308 | [OP_SETCLIENTID_CONFIRM] = { | |
eb69853d | 2309 | .op_func = nfsd4_setclientid_confirm, |
58e7b33a | 2310 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 2311 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 2312 | .op_name = "OP_SETCLIENTID_CONFIRM", |
1c122638 | 2313 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2314 | }, |
2315 | [OP_VERIFY] = { | |
eb69853d | 2316 | .op_func = nfsd4_verify, |
b001a1b6 | 2317 | .op_name = "OP_VERIFY", |
1c122638 | 2318 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2319 | }, |
2320 | [OP_WRITE] = { | |
eb69853d | 2321 | .op_func = nfsd4_write, |
c856694e | 2322 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 2323 | .op_name = "OP_WRITE", |
1c122638 | 2324 | .op_rsize_bop = nfsd4_write_rsize, |
57832e7b | 2325 | .op_get_currentstateid = nfsd4_get_writestateid, |
b591480b BF |
2326 | }, |
2327 | [OP_RELEASE_LOCKOWNER] = { | |
eb69853d | 2328 | .op_func = nfsd4_release_lockowner, |
58e7b33a MJ |
2329 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
2330 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 2331 | .op_name = "OP_RELEASE_LOCKOWNER", |
1c122638 | 2332 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b | 2333 | }, |
069b6ad4 AA |
2334 | |
2335 | /* NFSv4.1 operations */ | |
2336 | [OP_EXCHANGE_ID] = { | |
eb69853d | 2337 | .op_func = nfsd4_exchange_id, |
58e7b33a MJ |
2338 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
2339 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 2340 | .op_name = "OP_EXCHANGE_ID", |
1c122638 | 2341 | .op_rsize_bop = nfsd4_exchange_id_rsize, |
069b6ad4 | 2342 | }, |
cb73a9f4 | 2343 | [OP_BACKCHANNEL_CTL] = { |
eb69853d | 2344 | .op_func = nfsd4_backchannel_ctl, |
cb73a9f4 BF |
2345 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
2346 | .op_name = "OP_BACKCHANNEL_CTL", | |
1c122638 | 2347 | .op_rsize_bop = nfsd4_only_status_rsize, |
cb73a9f4 | 2348 | }, |
1d1bc8f2 | 2349 | [OP_BIND_CONN_TO_SESSION] = { |
eb69853d | 2350 | .op_func = nfsd4_bind_conn_to_session, |
58e7b33a MJ |
2351 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
2352 | | OP_MODIFIES_SOMETHING, | |
1d1bc8f2 | 2353 | .op_name = "OP_BIND_CONN_TO_SESSION", |
1c122638 | 2354 | .op_rsize_bop = nfsd4_bind_conn_to_session_rsize, |
1d1bc8f2 | 2355 | }, |
069b6ad4 | 2356 | [OP_CREATE_SESSION] = { |
eb69853d | 2357 | .op_func = nfsd4_create_session, |
58e7b33a MJ |
2358 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
2359 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 2360 | .op_name = "OP_CREATE_SESSION", |
1c122638 | 2361 | .op_rsize_bop = nfsd4_create_session_rsize, |
069b6ad4 AA |
2362 | }, |
2363 | [OP_DESTROY_SESSION] = { | |
eb69853d | 2364 | .op_func = nfsd4_destroy_session, |
58e7b33a MJ |
2365 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
2366 | | OP_MODIFIES_SOMETHING, | |
069b6ad4 | 2367 | .op_name = "OP_DESTROY_SESSION", |
1c122638 | 2368 | .op_rsize_bop = nfsd4_only_status_rsize, |
069b6ad4 AA |
2369 | }, |
2370 | [OP_SEQUENCE] = { | |
eb69853d | 2371 | .op_func = nfsd4_sequence, |
f9bb94c4 | 2372 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, |
069b6ad4 | 2373 | .op_name = "OP_SEQUENCE", |
1c122638 | 2374 | .op_rsize_bop = nfsd4_sequence_rsize, |
069b6ad4 | 2375 | }, |
094b5d74 | 2376 | [OP_DESTROY_CLIENTID] = { |
eb69853d | 2377 | .op_func = nfsd4_destroy_clientid, |
58e7b33a MJ |
2378 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP |
2379 | | OP_MODIFIES_SOMETHING, | |
094b5d74 | 2380 | .op_name = "OP_DESTROY_CLIENTID", |
1c122638 | 2381 | .op_rsize_bop = nfsd4_only_status_rsize, |
094b5d74 | 2382 | }, |
4dc6ec00 | 2383 | [OP_RECLAIM_COMPLETE] = { |
eb69853d | 2384 | .op_func = nfsd4_reclaim_complete, |
58e7b33a | 2385 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
4dc6ec00 | 2386 | .op_name = "OP_RECLAIM_COMPLETE", |
1c122638 | 2387 | .op_rsize_bop = nfsd4_only_status_rsize, |
4dc6ec00 | 2388 | }, |
04f4ad16 | 2389 | [OP_SECINFO_NO_NAME] = { |
eb69853d | 2390 | .op_func = nfsd4_secinfo_no_name, |
ec572b9e | 2391 | .op_release = nfsd4_secinfo_no_name_release, |
68d93184 | 2392 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 | 2393 | .op_name = "OP_SECINFO_NO_NAME", |
1c122638 | 2394 | .op_rsize_bop = nfsd4_secinfo_rsize, |
04f4ad16 | 2395 | }, |
17456804 | 2396 | [OP_TEST_STATEID] = { |
eb69853d | 2397 | .op_func = nfsd4_test_stateid, |
17456804 BS |
2398 | .op_flags = ALLOWED_WITHOUT_FH, |
2399 | .op_name = "OP_TEST_STATEID", | |
1c122638 | 2400 | .op_rsize_bop = nfsd4_test_stateid_rsize, |
17456804 | 2401 | }, |
e1ca12df | 2402 | [OP_FREE_STATEID] = { |
eb69853d | 2403 | .op_func = nfsd4_free_stateid, |
58e7b33a | 2404 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 2405 | .op_name = "OP_FREE_STATEID", |
57832e7b | 2406 | .op_get_currentstateid = nfsd4_get_freestateid, |
1c122638 | 2407 | .op_rsize_bop = nfsd4_only_status_rsize, |
e1ca12df | 2408 | }, |
9cf514cc CH |
2409 | #ifdef CONFIG_NFSD_PNFS |
2410 | [OP_GETDEVICEINFO] = { | |
eb69853d | 2411 | .op_func = nfsd4_getdeviceinfo, |
34b1744c | 2412 | .op_release = nfsd4_getdeviceinfo_release, |
9cf514cc CH |
2413 | .op_flags = ALLOWED_WITHOUT_FH, |
2414 | .op_name = "OP_GETDEVICEINFO", | |
1c122638 | 2415 | .op_rsize_bop = nfsd4_getdeviceinfo_rsize, |
9cf514cc CH |
2416 | }, |
2417 | [OP_LAYOUTGET] = { | |
eb69853d | 2418 | .op_func = nfsd4_layoutget, |
34b1744c | 2419 | .op_release = nfsd4_layoutget_release, |
9cf514cc CH |
2420 | .op_flags = OP_MODIFIES_SOMETHING, |
2421 | .op_name = "OP_LAYOUTGET", | |
1c122638 | 2422 | .op_rsize_bop = nfsd4_layoutget_rsize, |
9cf514cc CH |
2423 | }, |
2424 | [OP_LAYOUTCOMMIT] = { | |
eb69853d | 2425 | .op_func = nfsd4_layoutcommit, |
9cf514cc CH |
2426 | .op_flags = OP_MODIFIES_SOMETHING, |
2427 | .op_name = "OP_LAYOUTCOMMIT", | |
1c122638 | 2428 | .op_rsize_bop = nfsd4_layoutcommit_rsize, |
9cf514cc CH |
2429 | }, |
2430 | [OP_LAYOUTRETURN] = { | |
eb69853d | 2431 | .op_func = nfsd4_layoutreturn, |
9cf514cc CH |
2432 | .op_flags = OP_MODIFIES_SOMETHING, |
2433 | .op_name = "OP_LAYOUTRETURN", | |
1c122638 | 2434 | .op_rsize_bop = nfsd4_layoutreturn_rsize, |
9cf514cc CH |
2435 | }, |
2436 | #endif /* CONFIG_NFSD_PNFS */ | |
24bab491 AS |
2437 | |
2438 | /* NFSv4.2 operations */ | |
95d871f0 | 2439 | [OP_ALLOCATE] = { |
eb69853d | 2440 | .op_func = nfsd4_allocate, |
95d871f0 AS |
2441 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2442 | .op_name = "OP_ALLOCATE", | |
1c122638 | 2443 | .op_rsize_bop = nfsd4_only_status_rsize, |
95d871f0 | 2444 | }, |
b0cb9085 | 2445 | [OP_DEALLOCATE] = { |
eb69853d | 2446 | .op_func = nfsd4_deallocate, |
b0cb9085 AS |
2447 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2448 | .op_name = "OP_DEALLOCATE", | |
1c122638 | 2449 | .op_rsize_bop = nfsd4_only_status_rsize, |
b0cb9085 | 2450 | }, |
ffa0160a | 2451 | [OP_CLONE] = { |
eb69853d | 2452 | .op_func = nfsd4_clone, |
ffa0160a CH |
2453 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2454 | .op_name = "OP_CLONE", | |
1c122638 | 2455 | .op_rsize_bop = nfsd4_only_status_rsize, |
ffa0160a | 2456 | }, |
29ae7f9d | 2457 | [OP_COPY] = { |
eb69853d | 2458 | .op_func = nfsd4_copy, |
29ae7f9d AS |
2459 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2460 | .op_name = "OP_COPY", | |
1c122638 | 2461 | .op_rsize_bop = nfsd4_copy_rsize, |
29ae7f9d | 2462 | }, |
24bab491 | 2463 | [OP_SEEK] = { |
eb69853d | 2464 | .op_func = nfsd4_seek, |
24bab491 | 2465 | .op_name = "OP_SEEK", |
1c122638 | 2466 | .op_rsize_bop = nfsd4_seek_rsize, |
24bab491 | 2467 | }, |
b591480b BF |
2468 | }; |
2469 | ||
ed941643 AE |
2470 | /** |
2471 | * nfsd4_spo_must_allow - Determine if the compound op contains an | |
2472 | * operation that is allowed to be sent with machine credentials | |
2473 | * | |
2474 | * @rqstp: a pointer to the struct svc_rqst | |
2475 | * | |
2476 | * Checks to see if the compound contains a spo_must_allow op | |
2477 | * and confirms that it was sent with the proper machine creds. | |
2478 | */ | |
2479 | ||
2480 | bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) | |
2481 | { | |
2482 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
2483 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
2484 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
2485 | struct nfsd4_compound_state *cstate = &resp->cstate; | |
2486 | struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow; | |
2487 | u32 opiter; | |
2488 | ||
2489 | if (!cstate->minorversion) | |
2490 | return false; | |
2491 | ||
2492 | if (cstate->spo_must_allowed == true) | |
2493 | return true; | |
2494 | ||
2495 | opiter = resp->opcnt; | |
2496 | while (opiter < argp->opcnt) { | |
2497 | this = &argp->ops[opiter++]; | |
2498 | if (test_bit(this->opnum, allow->u.longs) && | |
2499 | cstate->clp->cl_mach_cred && | |
2500 | nfsd4_mach_creds_match(cstate->clp, rqstp)) { | |
2501 | cstate->spo_must_allowed = true; | |
2502 | return true; | |
2503 | } | |
2504 | } | |
2505 | cstate->spo_must_allowed = false; | |
2506 | return false; | |
2507 | } | |
2508 | ||
4f0cefbf BF |
2509 | int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2510 | { | |
05b7278d | 2511 | if (op->opnum == OP_ILLEGAL || op->status == nfserr_notsupp) |
4f0cefbf | 2512 | return op_encode_hdr_size * sizeof(__be32); |
2282cd2c KM |
2513 | |
2514 | BUG_ON(OPDESC(op)->op_rsize_bop == NULL); | |
2515 | return OPDESC(op)->op_rsize_bop(rqstp, op); | |
4f0cefbf BF |
2516 | } |
2517 | ||
07d1f802 BF |
2518 | void warn_on_nonidempotent_op(struct nfsd4_op *op) |
2519 | { | |
2520 | if (OPDESC(op)->op_flags & OP_MODIFIES_SOMETHING) { | |
2521 | pr_err("unable to encode reply to nonidempotent op %d (%s)\n", | |
2522 | op->opnum, nfsd4_op_name(op->opnum)); | |
2523 | WARN_ON_ONCE(1); | |
2524 | } | |
2525 | } | |
2526 | ||
f1c7f79b | 2527 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
2528 | { |
2529 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
2530 | return nfsd4_ops[opnum].op_name; | |
2531 | return "unknown_operation"; | |
2532 | } | |
2533 | ||
1da177e4 | 2534 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
2535 | struct nfsd4_voidargs { int dummy; }; |
2536 | ||
860bda29 | 2537 | static const struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f | 2538 | [NFSPROC4_NULL] = { |
f7235b6b | 2539 | .pc_func = nfsd4_proc_null, |
63f8de37 | 2540 | .pc_encode = nfs4svc_encode_voidres, |
0a93a47f YZ |
2541 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
2542 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
2543 | .pc_cachetype = RC_NOCACHE, | |
2544 | .pc_xdrressize = 1, | |
2545 | }, | |
2546 | [NFSPROC4_COMPOUND] = { | |
f7235b6b | 2547 | .pc_func = nfsd4_proc_compound, |
026fec7e | 2548 | .pc_decode = nfs4svc_decode_compoundargs, |
63f8de37 | 2549 | .pc_encode = nfs4svc_encode_compoundres, |
0a93a47f YZ |
2550 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
2551 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 2552 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
2553 | .pc_cachetype = RC_NOCACHE, |
2554 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
2555 | }, | |
1da177e4 LT |
2556 | }; |
2557 | ||
7fd38af9 | 2558 | static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures4)]; |
e9679189 | 2559 | const struct svc_version nfsd_version4 = { |
5283b03e JL |
2560 | .vs_vers = 4, |
2561 | .vs_nproc = 2, | |
2562 | .vs_proc = nfsd_procedures4, | |
7fd38af9 | 2563 | .vs_count = nfsd_count3, |
5283b03e JL |
2564 | .vs_dispatch = nfsd_dispatch, |
2565 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
2566 | .vs_rpcb_optnl = true, | |
2567 | .vs_need_cong_ctrl = true, | |
1da177e4 LT |
2568 | }; |
2569 | ||
2570 | /* | |
2571 | * Local variables: | |
2572 | * c-basic-offset: 8 | |
2573 | * End: | |
2574 | */ |