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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Server-side procedures for NFSv4. |
3 | * | |
4 | * Copyright (c) 2002 The Regents of the University of Michigan. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Kendrick Smith <kmsmith@umich.edu> | |
8 | * Andy Adamson <andros@umich.edu> | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or without | |
11 | * modification, are permitted provided that the following conditions | |
12 | * are met: | |
13 | * | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions and the following disclaimer. | |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in the | |
18 | * documentation and/or other materials provided with the distribution. | |
19 | * 3. Neither the name of the University nor the names of its | |
20 | * contributors may be used to endorse or promote products derived | |
21 | * from this software without specific prior written permission. | |
22 | * | |
23 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
24 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
25 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
26 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
30 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
32 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
33 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
1da177e4 | 34 | */ |
7e06b7f9 | 35 | #include <linux/file.h> |
b0cb9085 | 36 | #include <linux/falloc.h> |
5a0e3ad6 | 37 | #include <linux/slab.h> |
1da177e4 | 38 | |
58e7b33a | 39 | #include "idmap.h" |
9a74af21 BH |
40 | #include "cache.h" |
41 | #include "xdr4.h" | |
0a3adade | 42 | #include "vfs.h" |
8b70484c | 43 | #include "current_stateid.h" |
3320fef1 | 44 | #include "netns.h" |
4ac7249e | 45 | #include "acl.h" |
9cf514cc | 46 | #include "pnfs.h" |
31ef83dc | 47 | #include "trace.h" |
1da177e4 | 48 | |
18032ca0 DQ |
49 | #ifdef CONFIG_NFSD_V4_SECURITY_LABEL |
50 | #include <linux/security.h> | |
51 | ||
52 | static inline void | |
53 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) | |
54 | { | |
2b0143b5 | 55 | struct inode *inode = d_inode(resfh->fh_dentry); |
18032ca0 DQ |
56 | int status; |
57 | ||
5955102c | 58 | inode_lock(inode); |
18032ca0 DQ |
59 | status = security_inode_setsecctx(resfh->fh_dentry, |
60 | label->data, label->len); | |
5955102c | 61 | inode_unlock(inode); |
18032ca0 DQ |
62 | |
63 | if (status) | |
64 | /* | |
65 | * XXX: We should really fail the whole open, but we may | |
66 | * already have created a new file, so it may be too | |
67 | * late. For now this seems the least of evils: | |
68 | */ | |
69 | bmval[2] &= ~FATTR4_WORD2_SECURITY_LABEL; | |
70 | ||
71 | return; | |
72 | } | |
73 | #else | |
74 | static inline void | |
75 | nfsd4_security_inode_setsecctx(struct svc_fh *resfh, struct xdr_netobj *label, u32 *bmval) | |
76 | { } | |
77 | #endif | |
78 | ||
1da177e4 LT |
79 | #define NFSDDBG_FACILITY NFSDDBG_PROC |
80 | ||
3c8e0316 YZ |
81 | static u32 nfsd_attrmask[] = { |
82 | NFSD_WRITEABLE_ATTRS_WORD0, | |
83 | NFSD_WRITEABLE_ATTRS_WORD1, | |
84 | NFSD_WRITEABLE_ATTRS_WORD2 | |
85 | }; | |
86 | ||
87 | static u32 nfsd41_ex_attrmask[] = { | |
88 | NFSD_SUPPATTR_EXCLCREAT_WORD0, | |
89 | NFSD_SUPPATTR_EXCLCREAT_WORD1, | |
90 | NFSD_SUPPATTR_EXCLCREAT_WORD2 | |
91 | }; | |
92 | ||
93 | static __be32 | |
94 | check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
95 | u32 *bmval, u32 *writable) | |
96 | { | |
97 | struct dentry *dentry = cstate->current_fh.fh_dentry; | |
32ddd944 | 98 | struct svc_export *exp = cstate->current_fh.fh_export; |
3c8e0316 | 99 | |
916d2d84 | 100 | if (!nfsd_attrs_supported(cstate->minorversion, bmval)) |
3c8e0316 | 101 | return nfserr_attrnotsupp; |
916d2d84 BF |
102 | if ((bmval[0] & FATTR4_WORD0_ACL) && !IS_POSIXACL(d_inode(dentry))) |
103 | return nfserr_attrnotsupp; | |
32ddd944 BF |
104 | if ((bmval[2] & FATTR4_WORD2_SECURITY_LABEL) && |
105 | !(exp->ex_flags & NFSEXP_SECURITY_LABEL)) | |
106 | return nfserr_attrnotsupp; | |
916d2d84 BF |
107 | if (writable && !bmval_is_subset(bmval, writable)) |
108 | return nfserr_inval; | |
47057abd AG |
109 | if (writable && (bmval[2] & FATTR4_WORD2_MODE_UMASK) && |
110 | (bmval[1] & FATTR4_WORD1_MODE)) | |
111 | return nfserr_inval; | |
3c8e0316 YZ |
112 | return nfs_ok; |
113 | } | |
114 | ||
115 | static __be32 | |
116 | nfsd4_check_open_attributes(struct svc_rqst *rqstp, | |
117 | struct nfsd4_compound_state *cstate, struct nfsd4_open *open) | |
118 | { | |
119 | __be32 status = nfs_ok; | |
120 | ||
121 | if (open->op_create == NFS4_OPEN_CREATE) { | |
122 | if (open->op_createmode == NFS4_CREATE_UNCHECKED | |
123 | || open->op_createmode == NFS4_CREATE_GUARDED) | |
124 | status = check_attr_support(rqstp, cstate, | |
125 | open->op_bmval, nfsd_attrmask); | |
126 | else if (open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1) | |
127 | status = check_attr_support(rqstp, cstate, | |
128 | open->op_bmval, nfsd41_ex_attrmask); | |
129 | } | |
130 | ||
131 | return status; | |
132 | } | |
133 | ||
9208faf2 YZ |
134 | static int |
135 | is_create_with_attrs(struct nfsd4_open *open) | |
136 | { | |
137 | return open->op_create == NFS4_OPEN_CREATE | |
138 | && (open->op_createmode == NFS4_CREATE_UNCHECKED | |
139 | || open->op_createmode == NFS4_CREATE_GUARDED | |
140 | || open->op_createmode == NFS4_CREATE_EXCLUSIVE4_1); | |
141 | } | |
142 | ||
143 | /* | |
144 | * if error occurs when setting the acl, just clear the acl bit | |
145 | * in the returned attr bitmap. | |
146 | */ | |
147 | static void | |
148 | do_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp, | |
149 | struct nfs4_acl *acl, u32 *bmval) | |
150 | { | |
151 | __be32 status; | |
152 | ||
153 | status = nfsd4_set_nfs4_acl(rqstp, fhp, acl); | |
154 | if (status) | |
155 | /* | |
156 | * We should probably fail the whole open at this point, | |
157 | * but we've already created the file, so it's too late; | |
158 | * So this seems the least of evils: | |
159 | */ | |
160 | bmval[0] &= ~FATTR4_WORD0_ACL; | |
161 | } | |
162 | ||
1da177e4 LT |
163 | static inline void |
164 | fh_dup2(struct svc_fh *dst, struct svc_fh *src) | |
165 | { | |
166 | fh_put(dst); | |
167 | dget(src->fh_dentry); | |
168 | if (src->fh_export) | |
bf18f163 | 169 | exp_get(src->fh_export); |
1da177e4 LT |
170 | *dst = *src; |
171 | } | |
172 | ||
b37ad28b | 173 | static __be32 |
dc730e17 | 174 | do_open_permission(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open, int accmode) |
1da177e4 | 175 | { |
b37ad28b | 176 | __be32 status; |
1da177e4 LT |
177 | |
178 | if (open->op_truncate && | |
179 | !(open->op_share_access & NFS4_SHARE_ACCESS_WRITE)) | |
180 | return nfserr_inval; | |
181 | ||
a043226b BF |
182 | accmode |= NFSD_MAY_READ_IF_EXEC; |
183 | ||
1da177e4 | 184 | if (open->op_share_access & NFS4_SHARE_ACCESS_READ) |
8837abca | 185 | accmode |= NFSD_MAY_READ; |
9801d8a3 | 186 | if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) |
8837abca | 187 | accmode |= (NFSD_MAY_WRITE | NFSD_MAY_TRUNC); |
57ecb34f | 188 | if (open->op_share_deny & NFS4_SHARE_DENY_READ) |
8837abca | 189 | accmode |= NFSD_MAY_WRITE; |
1da177e4 LT |
190 | |
191 | status = fh_verify(rqstp, current_fh, S_IFREG, accmode); | |
192 | ||
193 | return status; | |
194 | } | |
195 | ||
aadab6c6 BF |
196 | static __be32 nfsd_check_obj_isreg(struct svc_fh *fh) |
197 | { | |
2b0143b5 | 198 | umode_t mode = d_inode(fh->fh_dentry)->i_mode; |
aadab6c6 BF |
199 | |
200 | if (S_ISREG(mode)) | |
201 | return nfs_ok; | |
202 | if (S_ISDIR(mode)) | |
203 | return nfserr_isdir; | |
204 | /* | |
205 | * Using err_symlink as our catch-all case may look odd; but | |
206 | * there's no other obvious error for this case in 4.0, and we | |
207 | * happen to know that it will cause the linux v4 client to do | |
208 | * the right thing on attempts to open something other than a | |
209 | * regular file. | |
210 | */ | |
211 | return nfserr_symlink; | |
212 | } | |
213 | ||
bbc9c36c BF |
214 | static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh *resfh) |
215 | { | |
216 | if (nfsd4_has_session(cstate)) | |
217 | return; | |
218 | fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh, | |
219 | &resfh->fh_handle); | |
220 | } | |
221 | ||
b37ad28b | 222 | static __be32 |
c0e6bee4 | 223 | do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh **resfh) |
1da177e4 | 224 | { |
bbc9c36c | 225 | struct svc_fh *current_fh = &cstate->current_fh; |
7007c90f | 226 | int accmode; |
b37ad28b | 227 | __be32 status; |
1da177e4 | 228 | |
c0e6bee4 BF |
229 | *resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL); |
230 | if (!*resfh) | |
59deeb9e | 231 | return nfserr_jukebox; |
c0e6bee4 | 232 | fh_init(*resfh, NFS4_FHSIZE); |
1da177e4 LT |
233 | open->op_truncate = 0; |
234 | ||
235 | if (open->op_create) { | |
79fb54ab BH |
236 | /* FIXME: check session persistence and pnfs flags. |
237 | * The nfsv4.1 spec requires the following semantics: | |
238 | * | |
239 | * Persistent | pNFS | Server REQUIRED | Client Allowed | |
240 | * Reply Cache | server | | | |
241 | * -------------+--------+-----------------+-------------------- | |
242 | * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
243 | * | | | (SHOULD) | |
244 | * | | and EXCLUSIVE4 | or EXCLUSIVE4 | |
245 | * | | | (SHOULD NOT) | |
246 | * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1 | |
247 | * yes | no | GUARDED4 | GUARDED4 | |
248 | * yes | yes | GUARDED4 | GUARDED4 | |
249 | */ | |
250 | ||
1da177e4 LT |
251 | /* |
252 | * Note: create modes (UNCHECKED,GUARDED...) are the same | |
ac6721a1 | 253 | * in NFSv4 as in v3 except EXCLUSIVE4_1. |
1da177e4 | 254 | */ |
ac6721a1 | 255 | status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, |
1da177e4 | 256 | open->op_fname.len, &open->op_iattr, |
c0e6bee4 | 257 | *resfh, open->op_createmode, |
749997e5 | 258 | (u32 *)open->op_verf.data, |
856121b2 | 259 | &open->op_truncate, &open->op_created); |
749997e5 | 260 | |
18032ca0 | 261 | if (!status && open->op_label.len) |
c0e6bee4 | 262 | nfsd4_security_inode_setsecctx(*resfh, &open->op_label, open->op_bmval); |
18032ca0 | 263 | |
99f88726 | 264 | /* |
ead8fb8c KM |
265 | * Following rfc 3530 14.2.16, and rfc 5661 18.16.4 |
266 | * use the returned bitmask to indicate which attributes | |
267 | * we used to store the verifier: | |
749997e5 | 268 | */ |
ead8fb8c KM |
269 | if (nfsd_create_is_exclusive(open->op_createmode) && status == 0) |
270 | open->op_bmval[1] |= (FATTR4_WORD1_TIME_ACCESS | | |
271 | FATTR4_WORD1_TIME_MODIFY); | |
4335723e BF |
272 | } else |
273 | /* | |
274 | * Note this may exit with the parent still locked. | |
275 | * We will hold the lock until nfsd4_open's final | |
276 | * lookup, to prevent renames or unlinks until we've had | |
277 | * a chance to an acquire a delegation if appropriate. | |
278 | */ | |
1da177e4 | 279 | status = nfsd_lookup(rqstp, current_fh, |
c0e6bee4 | 280 | open->op_fname.data, open->op_fname.len, *resfh); |
9dc4e6c4 BF |
281 | if (status) |
282 | goto out; | |
c0e6bee4 | 283 | status = nfsd_check_obj_isreg(*resfh); |
af85852d BF |
284 | if (status) |
285 | goto out; | |
1da177e4 | 286 | |
9208faf2 | 287 | if (is_create_with_attrs(open) && open->op_acl != NULL) |
c0e6bee4 | 288 | do_set_nfs4_acl(rqstp, *resfh, open->op_acl, open->op_bmval); |
9208faf2 | 289 | |
c0e6bee4 | 290 | nfsd4_set_open_owner_reply_cache(cstate, open, *resfh); |
7007c90f | 291 | accmode = NFSD_MAY_NOP; |
89f6c336 BF |
292 | if (open->op_created || |
293 | open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR) | |
7007c90f | 294 | accmode |= NFSD_MAY_OWNER_OVERRIDE; |
c0e6bee4 | 295 | status = do_open_permission(rqstp, *resfh, open, accmode); |
41fd1e42 | 296 | set_change_info(&open->op_cinfo, current_fh); |
af85852d | 297 | out: |
1da177e4 LT |
298 | return status; |
299 | } | |
300 | ||
b37ad28b | 301 | static __be32 |
bbc9c36c | 302 | do_open_fhandle(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open) |
1da177e4 | 303 | { |
bbc9c36c | 304 | struct svc_fh *current_fh = &cstate->current_fh; |
b37ad28b | 305 | __be32 status; |
9f415eb2 | 306 | int accmode = 0; |
1da177e4 | 307 | |
1da177e4 LT |
308 | /* We don't know the target directory, and therefore can not |
309 | * set the change info | |
310 | */ | |
311 | ||
312 | memset(&open->op_cinfo, 0, sizeof(struct nfsd4_change_info)); | |
313 | ||
bbc9c36c | 314 | nfsd4_set_open_owner_reply_cache(cstate, open, current_fh); |
1da177e4 LT |
315 | |
316 | open->op_truncate = (open->op_iattr.ia_valid & ATTR_SIZE) && | |
317 | (open->op_iattr.ia_size == 0); | |
9f415eb2 BF |
318 | /* |
319 | * In the delegation case, the client is telling us about an | |
320 | * open that it *already* performed locally, some time ago. We | |
321 | * should let it succeed now if possible. | |
322 | * | |
323 | * In the case of a CLAIM_FH open, on the other hand, the client | |
324 | * may be counting on us to enforce permissions (the Linux 4.1 | |
325 | * client uses this for normal opens, for example). | |
326 | */ | |
327 | if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEG_CUR_FH) | |
328 | accmode = NFSD_MAY_OWNER_OVERRIDE; | |
1da177e4 | 329 | |
9f415eb2 | 330 | status = do_open_permission(rqstp, current_fh, open, accmode); |
1da177e4 LT |
331 | |
332 | return status; | |
333 | } | |
334 | ||
60adfc50 AA |
335 | static void |
336 | copy_clientid(clientid_t *clid, struct nfsd4_session *session) | |
337 | { | |
338 | struct nfsd4_sessionid *sid = | |
339 | (struct nfsd4_sessionid *)session->se_sessionid.data; | |
340 | ||
341 | clid->cl_boot = sid->clientid.cl_boot; | |
342 | clid->cl_id = sid->clientid.cl_id; | |
343 | } | |
1da177e4 | 344 | |
7191155b | 345 | static __be32 |
ca364317 | 346 | nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 347 | union nfsd4_op_u *u) |
1da177e4 | 348 | { |
eb69853d | 349 | struct nfsd4_open *open = &u->open; |
b37ad28b | 350 | __be32 status; |
c0e6bee4 | 351 | struct svc_fh *resfh = NULL; |
3320fef1 SK |
352 | struct net *net = SVC_NET(rqstp); |
353 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); | |
6668958f | 354 | |
fe0750e5 | 355 | dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", |
1da177e4 | 356 | (int)open->op_fname.len, open->op_fname.data, |
fe0750e5 | 357 | open->op_openowner); |
1da177e4 | 358 | |
1da177e4 LT |
359 | /* This check required by spec. */ |
360 | if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL) | |
361 | return nfserr_inval; | |
362 | ||
856121b2 | 363 | open->op_created = 0; |
ab1350b2 MJ |
364 | /* |
365 | * RFC5661 18.51.3 | |
366 | * Before RECLAIM_COMPLETE done, server should deny new lock | |
367 | */ | |
368 | if (nfsd4_has_session(cstate) && | |
a52d726b JL |
369 | !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, |
370 | &cstate->session->se_client->cl_flags) && | |
ab1350b2 MJ |
371 | open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
372 | return nfserr_grace; | |
373 | ||
60adfc50 AA |
374 | if (nfsd4_has_session(cstate)) |
375 | copy_clientid(&open->op_clientid, cstate->session); | |
376 | ||
1da177e4 | 377 | /* check seqid for replay. set nfs4_owner */ |
6cd22668 | 378 | status = nfsd4_process_open1(cstate, open, nn); |
a90b061c | 379 | if (status == nfserr_replay_me) { |
fe0750e5 | 380 | struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; |
ca364317 | 381 | fh_put(&cstate->current_fh); |
a4773c08 BF |
382 | fh_copy_shallow(&cstate->current_fh.fh_handle, |
383 | &rp->rp_openfh); | |
8837abca | 384 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
385 | if (status) |
386 | dprintk("nfsd4_open: replay failed" | |
387 | " restoring previous filehandle\n"); | |
388 | else | |
a90b061c | 389 | status = nfserr_replay_me; |
1da177e4 LT |
390 | } |
391 | if (status) | |
392 | goto out; | |
9d313b17 BF |
393 | if (open->op_xdr_error) { |
394 | status = open->op_xdr_error; | |
395 | goto out; | |
396 | } | |
fb553c0f | 397 | |
3c8e0316 YZ |
398 | status = nfsd4_check_open_attributes(rqstp, cstate, open); |
399 | if (status) | |
400 | goto out; | |
401 | ||
fb553c0f BF |
402 | /* Openowner is now set, so sequence id will get bumped. Now we need |
403 | * these checks before we do any creates: */ | |
cbd0d51a | 404 | status = nfserr_grace; |
c87fb4a3 | 405 | if (opens_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a BF |
406 | goto out; |
407 | status = nfserr_no_grace; | |
c87fb4a3 | 408 | if (!opens_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) |
cbd0d51a | 409 | goto out; |
fb553c0f | 410 | |
1da177e4 | 411 | switch (open->op_claim_type) { |
0dd3c192 | 412 | case NFS4_OPEN_CLAIM_DELEGATE_CUR: |
1da177e4 | 413 | case NFS4_OPEN_CLAIM_NULL: |
c0e6bee4 | 414 | status = do_open_lookup(rqstp, cstate, open, &resfh); |
1da177e4 LT |
415 | if (status) |
416 | goto out; | |
417 | break; | |
418 | case NFS4_OPEN_CLAIM_PREVIOUS: | |
3320fef1 | 419 | status = nfs4_check_open_reclaim(&open->op_clientid, |
0fe492db | 420 | cstate, nn); |
0cf99b91 MJ |
421 | if (status) |
422 | goto out; | |
ba5378b6 | 423 | open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; |
8b289b2c BF |
424 | case NFS4_OPEN_CLAIM_FH: |
425 | case NFS4_OPEN_CLAIM_DELEG_CUR_FH: | |
bbc9c36c | 426 | status = do_open_fhandle(rqstp, cstate, open); |
1da177e4 LT |
427 | if (status) |
428 | goto out; | |
c0e6bee4 | 429 | resfh = &cstate->current_fh; |
1da177e4 | 430 | break; |
8b289b2c | 431 | case NFS4_OPEN_CLAIM_DELEG_PREV_FH: |
1da177e4 | 432 | case NFS4_OPEN_CLAIM_DELEGATE_PREV: |
2fdada03 | 433 | dprintk("NFSD: unsupported OPEN claim type %d\n", |
1da177e4 LT |
434 | open->op_claim_type); |
435 | status = nfserr_notsupp; | |
436 | goto out; | |
437 | default: | |
2fdada03 | 438 | dprintk("NFSD: Invalid OPEN claim type %d\n", |
1da177e4 LT |
439 | open->op_claim_type); |
440 | status = nfserr_inval; | |
441 | goto out; | |
442 | } | |
443 | /* | |
444 | * nfsd4_process_open2() does the actual opening of the file. If | |
445 | * successful, it (1) truncates the file if open->op_truncate was | |
446 | * set, (2) sets open->op_stateid, (3) sets open->op_delegation. | |
447 | */ | |
c0e6bee4 | 448 | status = nfsd4_process_open2(rqstp, resfh, open); |
b3fbfe0e JL |
449 | WARN(status && open->op_created, |
450 | "nfsd4_process_open2 failed to open newly-created file! status=%u\n", | |
451 | be32_to_cpu(status)); | |
1da177e4 | 452 | out: |
c0e6bee4 BF |
453 | if (resfh && resfh != &cstate->current_fh) { |
454 | fh_dup2(&cstate->current_fh, resfh); | |
455 | fh_put(resfh); | |
456 | kfree(resfh); | |
457 | } | |
42297899 | 458 | nfsd4_cleanup_open_state(cstate, open); |
9411b1d4 | 459 | nfsd4_bump_seqid(cstate, status); |
1da177e4 LT |
460 | return status; |
461 | } | |
462 | ||
9d313b17 BF |
463 | /* |
464 | * OPEN is the only seqid-mutating operation whose decoding can fail | |
465 | * with a seqid-mutating error (specifically, decoding of user names in | |
466 | * the attributes). Therefore we have to do some processing to look up | |
467 | * the stateowner so that we can bump the seqid. | |
468 | */ | |
469 | static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op) | |
470 | { | |
eb69853d | 471 | struct nfsd4_open *open = &op->u.open; |
9d313b17 BF |
472 | |
473 | if (!seqid_mutating_err(ntohl(op->status))) | |
474 | return op->status; | |
475 | if (nfsd4_has_session(cstate)) | |
476 | return op->status; | |
477 | open->op_xdr_error = op->status; | |
eb69853d | 478 | return nfsd4_open(rqstp, cstate, &op->u); |
9d313b17 BF |
479 | } |
480 | ||
1da177e4 LT |
481 | /* |
482 | * filehandle-manipulating ops. | |
483 | */ | |
7191155b | 484 | static __be32 |
b591480b | 485 | nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 486 | union nfsd4_op_u *u) |
1da177e4 | 487 | { |
ca364317 | 488 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
489 | return nfserr_nofilehandle; |
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 | if (!cstate->current_fh.fh_dentry) |
1da177e4 LT |
539 | return nfserr_nofilehandle; |
540 | ||
ca364317 | 541 | fh_dup2(&cstate->save_fh, &cstate->current_fh); |
37c593c5 TM |
542 | if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { |
543 | memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); | |
544 | SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG); | |
545 | } | |
1da177e4 LT |
546 | return nfs_ok; |
547 | } | |
548 | ||
549 | /* | |
550 | * misc nfsv4 ops | |
551 | */ | |
7191155b | 552 | static __be32 |
ca364317 | 553 | nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 554 | union nfsd4_op_u *u) |
1da177e4 | 555 | { |
eb69853d CH |
556 | struct nfsd4_access *access = &u->access; |
557 | ||
1da177e4 LT |
558 | if (access->ac_req_access & ~NFS3_ACCESS_FULL) |
559 | return nfserr_inval; | |
560 | ||
561 | access->ac_resp_access = access->ac_req_access; | |
ca364317 BF |
562 | return nfsd_access(rqstp, &cstate->current_fh, &access->ac_resp_access, |
563 | &access->ac_supported); | |
1da177e4 LT |
564 | } |
565 | ||
b9c0ef85 | 566 | static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) |
ab4684d1 CL |
567 | { |
568 | __be32 verf[2]; | |
b9c0ef85 | 569 | struct nfsd_net *nn = net_generic(net, nfsd_net_id); |
ab4684d1 | 570 | |
f419992c JL |
571 | /* |
572 | * This is opaque to client, so no need to byte-swap. Use | |
573 | * __force to keep sparse happy | |
574 | */ | |
575 | verf[0] = (__force __be32)nn->nfssvc_boot.tv_sec; | |
576 | verf[1] = (__force __be32)nn->nfssvc_boot.tv_usec; | |
ab4684d1 CL |
577 | memcpy(verifier->data, verf, sizeof(verifier->data)); |
578 | } | |
579 | ||
7191155b | 580 | static __be32 |
ca364317 | 581 | nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 582 | union nfsd4_op_u *u) |
1da177e4 | 583 | { |
eb69853d CH |
584 | struct nfsd4_commit *commit = &u->commit; |
585 | ||
b9c0ef85 | 586 | gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp)); |
75c096f7 | 587 | return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset, |
ca364317 | 588 | commit->co_count); |
1da177e4 LT |
589 | } |
590 | ||
b37ad28b | 591 | static __be32 |
ca364317 | 592 | nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 593 | union nfsd4_op_u *u) |
1da177e4 | 594 | { |
eb69853d | 595 | struct nfsd4_create *create = &u->create; |
1da177e4 | 596 | struct svc_fh resfh; |
b37ad28b | 597 | __be32 status; |
1da177e4 LT |
598 | dev_t rdev; |
599 | ||
600 | fh_init(&resfh, NFS4_FHSIZE); | |
601 | ||
fa08139d | 602 | status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_NOP); |
1da177e4 LT |
603 | if (status) |
604 | return status; | |
605 | ||
3c8e0316 YZ |
606 | status = check_attr_support(rqstp, cstate, create->cr_bmval, |
607 | nfsd_attrmask); | |
608 | if (status) | |
609 | return status; | |
610 | ||
1da177e4 LT |
611 | switch (create->cr_type) { |
612 | case NF4LNK: | |
ca364317 BF |
613 | status = nfsd_symlink(rqstp, &cstate->current_fh, |
614 | create->cr_name, create->cr_namelen, | |
1e444f5b | 615 | create->cr_data, &resfh); |
1da177e4 LT |
616 | break; |
617 | ||
618 | case NF4BLK: | |
619 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
620 | if (MAJOR(rdev) != create->cr_specdata1 || | |
621 | MINOR(rdev) != create->cr_specdata2) | |
622 | return nfserr_inval; | |
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: | |
629 | rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); | |
630 | if (MAJOR(rdev) != create->cr_specdata1 || | |
631 | MINOR(rdev) != create->cr_specdata2) | |
632 | return nfserr_inval; | |
ca364317 BF |
633 | status = nfsd_create(rqstp, &cstate->current_fh, |
634 | create->cr_name, create->cr_namelen, | |
635 | &create->cr_iattr,S_IFCHR, rdev, &resfh); | |
1da177e4 LT |
636 | break; |
637 | ||
638 | case NF4SOCK: | |
ca364317 BF |
639 | status = nfsd_create(rqstp, &cstate->current_fh, |
640 | create->cr_name, create->cr_namelen, | |
641 | &create->cr_iattr, S_IFSOCK, 0, &resfh); | |
1da177e4 LT |
642 | break; |
643 | ||
644 | case NF4FIFO: | |
ca364317 BF |
645 | status = nfsd_create(rqstp, &cstate->current_fh, |
646 | create->cr_name, create->cr_namelen, | |
647 | &create->cr_iattr, S_IFIFO, 0, &resfh); | |
1da177e4 LT |
648 | break; |
649 | ||
650 | case NF4DIR: | |
651 | create->cr_iattr.ia_valid &= ~ATTR_SIZE; | |
ca364317 BF |
652 | status = nfsd_create(rqstp, &cstate->current_fh, |
653 | create->cr_name, create->cr_namelen, | |
654 | &create->cr_iattr, S_IFDIR, 0, &resfh); | |
1da177e4 LT |
655 | break; |
656 | ||
657 | default: | |
658 | status = nfserr_badtype; | |
659 | } | |
660 | ||
9208faf2 YZ |
661 | if (status) |
662 | goto out; | |
1da177e4 | 663 | |
18032ca0 DQ |
664 | if (create->cr_label.len) |
665 | nfsd4_security_inode_setsecctx(&resfh, &create->cr_label, create->cr_bmval); | |
666 | ||
9208faf2 YZ |
667 | if (create->cr_acl != NULL) |
668 | do_set_nfs4_acl(rqstp, &resfh, create->cr_acl, | |
669 | create->cr_bmval); | |
670 | ||
671 | fh_unlock(&cstate->current_fh); | |
672 | set_change_info(&create->cr_cinfo, &cstate->current_fh); | |
673 | fh_dup2(&cstate->current_fh, &resfh); | |
674 | out: | |
1da177e4 LT |
675 | fh_put(&resfh); |
676 | return status; | |
677 | } | |
678 | ||
7191155b | 679 | static __be32 |
ca364317 | 680 | nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 681 | union nfsd4_op_u *u) |
1da177e4 | 682 | { |
eb69853d | 683 | struct nfsd4_getattr *getattr = &u->getattr; |
b37ad28b | 684 | __be32 status; |
1da177e4 | 685 | |
8837abca | 686 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
687 | if (status) |
688 | return status; | |
689 | ||
690 | if (getattr->ga_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
691 | return nfserr_inval; | |
692 | ||
916d2d84 BF |
693 | getattr->ga_bmval[0] &= nfsd_suppattrs[cstate->minorversion][0]; |
694 | getattr->ga_bmval[1] &= nfsd_suppattrs[cstate->minorversion][1]; | |
695 | getattr->ga_bmval[2] &= nfsd_suppattrs[cstate->minorversion][2]; | |
1da177e4 | 696 | |
ca364317 | 697 | getattr->ga_fhp = &cstate->current_fh; |
1da177e4 LT |
698 | return nfs_ok; |
699 | } | |
700 | ||
7191155b | 701 | static __be32 |
ca364317 | 702 | nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 703 | union nfsd4_op_u *u) |
1da177e4 | 704 | { |
eb69853d | 705 | struct nfsd4_link *link = &u->link; |
b37ad28b | 706 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 707 | |
ca364317 | 708 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 709 | return status; |
ca364317 BF |
710 | status = nfsd_link(rqstp, &cstate->current_fh, |
711 | link->li_name, link->li_namelen, &cstate->save_fh); | |
1da177e4 | 712 | if (!status) |
ca364317 | 713 | set_change_info(&link->li_cinfo, &cstate->current_fh); |
1da177e4 LT |
714 | return status; |
715 | } | |
716 | ||
0ff7ab46 | 717 | static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh) |
1da177e4 LT |
718 | { |
719 | struct svc_fh tmp_fh; | |
b37ad28b | 720 | __be32 ret; |
1da177e4 LT |
721 | |
722 | fh_init(&tmp_fh, NFS4_FHSIZE); | |
df547efb BF |
723 | ret = exp_pseudoroot(rqstp, &tmp_fh); |
724 | if (ret) | |
1da177e4 | 725 | return ret; |
0ff7ab46 | 726 | if (tmp_fh.fh_dentry == fh->fh_dentry) { |
1da177e4 LT |
727 | fh_put(&tmp_fh); |
728 | return nfserr_noent; | |
729 | } | |
730 | fh_put(&tmp_fh); | |
0ff7ab46 BF |
731 | return nfsd_lookup(rqstp, fh, "..", 2, fh); |
732 | } | |
733 | ||
734 | static __be32 | |
735 | nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 736 | union nfsd4_op_u *u) |
0ff7ab46 BF |
737 | { |
738 | return nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
1da177e4 LT |
739 | } |
740 | ||
7191155b | 741 | static __be32 |
ca364317 | 742 | nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 743 | union nfsd4_op_u *u) |
1da177e4 | 744 | { |
ca364317 | 745 | return nfsd_lookup(rqstp, &cstate->current_fh, |
eb69853d | 746 | u->lookup.lo_name, u->lookup.lo_len, |
ca364317 | 747 | &cstate->current_fh); |
1da177e4 LT |
748 | } |
749 | ||
7191155b | 750 | static __be32 |
ca364317 | 751 | nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 752 | union nfsd4_op_u *u) |
1da177e4 | 753 | { |
eb69853d | 754 | struct nfsd4_read *read = &u->read; |
b37ad28b | 755 | __be32 status; |
1da177e4 | 756 | |
7e06b7f9 | 757 | read->rd_filp = NULL; |
1da177e4 LT |
758 | if (read->rd_offset >= OFFSET_MAX) |
759 | return nfserr_inval; | |
760 | ||
9b3234b9 BF |
761 | /* |
762 | * If we do a zero copy read, then a client will see read data | |
763 | * that reflects the state of the file *after* performing the | |
764 | * following compound. | |
765 | * | |
766 | * To ensure proper ordering, we therefore turn off zero copy if | |
767 | * the client wants us to do more in this compound: | |
768 | */ | |
769 | if (!nfsd4_last_compound_op(rqstp)) | |
779fb0f3 | 770 | clear_bit(RQ_SPLICE_OK, &rqstp->rq_flags); |
9b3234b9 | 771 | |
1da177e4 | 772 | /* check stateid */ |
aa0d6aed AS |
773 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
774 | &read->rd_stateid, RD_STATE, | |
775 | &read->rd_filp, &read->rd_tmp_file); | |
af90f707 | 776 | if (status) { |
1da177e4 LT |
777 | dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); |
778 | goto out; | |
779 | } | |
780 | status = nfs_ok; | |
781 | out: | |
1da177e4 | 782 | read->rd_rqstp = rqstp; |
ca364317 | 783 | read->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
784 | return status; |
785 | } | |
786 | ||
7191155b | 787 | static __be32 |
ca364317 | 788 | nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 789 | union nfsd4_op_u *u) |
1da177e4 | 790 | { |
eb69853d | 791 | struct nfsd4_readdir *readdir = &u->readdir; |
1da177e4 LT |
792 | u64 cookie = readdir->rd_cookie; |
793 | static const nfs4_verifier zeroverf; | |
794 | ||
795 | /* no need to check permission - this will be done in nfsd_readdir() */ | |
796 | ||
797 | if (readdir->rd_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1) | |
798 | return nfserr_inval; | |
799 | ||
916d2d84 BF |
800 | readdir->rd_bmval[0] &= nfsd_suppattrs[cstate->minorversion][0]; |
801 | readdir->rd_bmval[1] &= nfsd_suppattrs[cstate->minorversion][1]; | |
802 | readdir->rd_bmval[2] &= nfsd_suppattrs[cstate->minorversion][2]; | |
1da177e4 | 803 | |
832023bf | 804 | if ((cookie == 1) || (cookie == 2) || |
1da177e4 LT |
805 | (cookie == 0 && memcmp(readdir->rd_verf.data, zeroverf.data, NFS4_VERIFIER_SIZE))) |
806 | return nfserr_bad_cookie; | |
807 | ||
808 | readdir->rd_rqstp = rqstp; | |
ca364317 | 809 | readdir->rd_fhp = &cstate->current_fh; |
1da177e4 LT |
810 | return nfs_ok; |
811 | } | |
812 | ||
7191155b | 813 | static __be32 |
ca364317 | 814 | nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 815 | union nfsd4_op_u *u) |
1da177e4 | 816 | { |
eb69853d CH |
817 | u->readlink.rl_rqstp = rqstp; |
818 | u->readlink.rl_fhp = &cstate->current_fh; | |
1da177e4 LT |
819 | return nfs_ok; |
820 | } | |
821 | ||
7191155b | 822 | static __be32 |
ca364317 | 823 | nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 824 | union nfsd4_op_u *u) |
1da177e4 | 825 | { |
eb69853d | 826 | struct nfsd4_remove *remove = &u->remove; |
b37ad28b | 827 | __be32 status; |
1da177e4 | 828 | |
c87fb4a3 | 829 | if (opens_in_grace(SVC_NET(rqstp))) |
c815afc7 | 830 | return nfserr_grace; |
ca364317 BF |
831 | status = nfsd_unlink(rqstp, &cstate->current_fh, 0, |
832 | remove->rm_name, remove->rm_namelen); | |
1da177e4 | 833 | if (!status) { |
ca364317 BF |
834 | fh_unlock(&cstate->current_fh); |
835 | set_change_info(&remove->rm_cinfo, &cstate->current_fh); | |
1da177e4 LT |
836 | } |
837 | return status; | |
838 | } | |
839 | ||
7191155b | 840 | static __be32 |
ca364317 | 841 | nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 842 | union nfsd4_op_u *u) |
1da177e4 | 843 | { |
eb69853d | 844 | struct nfsd4_rename *rename = &u->rename; |
b37ad28b | 845 | __be32 status = nfserr_nofilehandle; |
1da177e4 | 846 | |
ca364317 | 847 | if (!cstate->save_fh.fh_dentry) |
1da177e4 | 848 | return status; |
c87fb4a3 | 849 | if (opens_in_grace(SVC_NET(rqstp)) && |
5ccb0066 | 850 | !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) |
c815afc7 | 851 | return nfserr_grace; |
ca364317 BF |
852 | status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, |
853 | rename->rn_snamelen, &cstate->current_fh, | |
1da177e4 | 854 | rename->rn_tname, rename->rn_tnamelen); |
2a6cf944 BF |
855 | if (status) |
856 | return status; | |
857 | set_change_info(&rename->rn_sinfo, &cstate->current_fh); | |
858 | set_change_info(&rename->rn_tinfo, &cstate->save_fh); | |
859 | return nfs_ok; | |
1da177e4 LT |
860 | } |
861 | ||
dcb488a3 AA |
862 | static __be32 |
863 | nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 864 | union nfsd4_op_u *u) |
dcb488a3 | 865 | { |
eb69853d | 866 | struct nfsd4_secinfo *secinfo = &u->secinfo; |
dcb488a3 AA |
867 | struct svc_export *exp; |
868 | struct dentry *dentry; | |
869 | __be32 err; | |
870 | ||
29a78a3e BF |
871 | err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); |
872 | if (err) | |
873 | return err; | |
dcb488a3 AA |
874 | err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, |
875 | secinfo->si_name, secinfo->si_namelen, | |
876 | &exp, &dentry); | |
877 | if (err) | |
878 | return err; | |
2f6fc056 | 879 | fh_unlock(&cstate->current_fh); |
2b0143b5 | 880 | if (d_really_is_negative(dentry)) { |
dcb488a3 AA |
881 | exp_put(exp); |
882 | err = nfserr_noent; | |
883 | } else | |
884 | secinfo->si_exp = exp; | |
885 | dput(dentry); | |
56560b9a BF |
886 | if (cstate->minorversion) |
887 | /* See rfc 5661 section 2.6.3.1.1.8 */ | |
888 | fh_put(&cstate->current_fh); | |
dcb488a3 AA |
889 | return err; |
890 | } | |
891 | ||
04f4ad16 BF |
892 | static __be32 |
893 | nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 894 | union nfsd4_op_u *u) |
04f4ad16 BF |
895 | { |
896 | __be32 err; | |
897 | ||
eb69853d | 898 | switch (u->secinfo_no_name.sin_style) { |
04f4ad16 BF |
899 | case NFS4_SECINFO_STYLE4_CURRENT_FH: |
900 | break; | |
901 | case NFS4_SECINFO_STYLE4_PARENT: | |
902 | err = nfsd4_do_lookupp(rqstp, &cstate->current_fh); | |
903 | if (err) | |
904 | return err; | |
905 | break; | |
906 | default: | |
907 | return nfserr_inval; | |
908 | } | |
bf18f163 | 909 | |
eb69853d | 910 | u->secinfo_no_name.sin_exp = exp_get(cstate->current_fh.fh_export); |
04f4ad16 BF |
911 | fh_put(&cstate->current_fh); |
912 | return nfs_ok; | |
913 | } | |
914 | ||
7191155b | 915 | static __be32 |
ca364317 | 916 | nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 917 | union nfsd4_op_u *u) |
1da177e4 | 918 | { |
eb69853d | 919 | struct nfsd4_setattr *setattr = &u->setattr; |
b37ad28b | 920 | __be32 status = nfs_ok; |
96f6f985 | 921 | int err; |
1da177e4 | 922 | |
1da177e4 | 923 | if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { |
af90f707 | 924 | status = nfs4_preprocess_stateid_op(rqstp, cstate, |
aa0d6aed AS |
925 | &cstate->current_fh, &setattr->sa_stateid, |
926 | WR_STATE, NULL, NULL); | |
375c5547 | 927 | if (status) { |
3e3b4800 | 928 | dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n"); |
375c5547 BF |
929 | return status; |
930 | } | |
1da177e4 | 931 | } |
96f6f985 AV |
932 | err = fh_want_write(&cstate->current_fh); |
933 | if (err) | |
934 | return nfserrno(err); | |
1da177e4 | 935 | status = nfs_ok; |
3c8e0316 YZ |
936 | |
937 | status = check_attr_support(rqstp, cstate, setattr->sa_bmval, | |
938 | nfsd_attrmask); | |
939 | if (status) | |
940 | goto out; | |
941 | ||
1da177e4 | 942 | if (setattr->sa_acl != NULL) |
ca364317 BF |
943 | status = nfsd4_set_nfs4_acl(rqstp, &cstate->current_fh, |
944 | setattr->sa_acl); | |
1da177e4 | 945 | if (status) |
18f335af | 946 | goto out; |
18032ca0 DQ |
947 | if (setattr->sa_label.len) |
948 | status = nfsd4_set_nfs4_label(rqstp, &cstate->current_fh, | |
949 | &setattr->sa_label); | |
950 | if (status) | |
951 | goto out; | |
ca364317 | 952 | status = nfsd_setattr(rqstp, &cstate->current_fh, &setattr->sa_iattr, |
1da177e4 | 953 | 0, (time_t)0); |
18f335af | 954 | out: |
bad0dcff | 955 | fh_drop_write(&cstate->current_fh); |
1da177e4 LT |
956 | return status; |
957 | } | |
958 | ||
ffe1137b BF |
959 | static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write) |
960 | { | |
961 | int i = 1; | |
962 | int buflen = write->wr_buflen; | |
963 | ||
964 | vec[0].iov_base = write->wr_head.iov_base; | |
965 | vec[0].iov_len = min_t(int, buflen, write->wr_head.iov_len); | |
966 | buflen -= vec[0].iov_len; | |
967 | ||
968 | while (buflen) { | |
969 | vec[i].iov_base = page_address(write->wr_pagelist[i - 1]); | |
970 | vec[i].iov_len = min_t(int, PAGE_SIZE, buflen); | |
971 | buflen -= vec[i].iov_len; | |
972 | i++; | |
973 | } | |
974 | return i; | |
975 | } | |
976 | ||
7191155b | 977 | static __be32 |
ca364317 | 978 | nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
eb69853d | 979 | union nfsd4_op_u *u) |
1da177e4 | 980 | { |
eb69853d | 981 | struct nfsd4_write *write = &u->write; |
1da177e4 LT |
982 | stateid_t *stateid = &write->wr_stateid; |
983 | struct file *filp = NULL; | |
b37ad28b | 984 | __be32 status = nfs_ok; |
31dec253 | 985 | unsigned long cnt; |
ffe1137b | 986 | int nvecs; |
1da177e4 | 987 | |
1da177e4 LT |
988 | if (write->wr_offset >= OFFSET_MAX) |
989 | return nfserr_inval; | |
990 | ||
aa0d6aed AS |
991 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
992 | stateid, WR_STATE, &filp, NULL); | |
375c5547 BF |
993 | if (status) { |
994 | dprintk("NFSD: nfsd4_write: couldn't process stateid!\n"); | |
995 | return status; | |
996 | } | |
997 | ||
31dec253 | 998 | cnt = write->wr_buflen; |
1da177e4 | 999 | write->wr_how_written = write->wr_stable_how; |
b9c0ef85 | 1000 | gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); |
1da177e4 | 1001 | |
ffe1137b BF |
1002 | nvecs = fill_in_write_vector(rqstp->rq_vec, write); |
1003 | WARN_ON_ONCE(nvecs > ARRAY_SIZE(rqstp->rq_vec)); | |
1004 | ||
af90f707 CH |
1005 | status = nfsd_vfs_write(rqstp, &cstate->current_fh, filp, |
1006 | write->wr_offset, rqstp->rq_vec, nvecs, &cnt, | |
54bbb7d2 | 1007 | write->wr_how_written); |
af90f707 | 1008 | fput(filp); |
1da177e4 | 1009 | |
31dec253 DS |
1010 | write->wr_bytes_written = cnt; |
1011 | ||
1da177e4 | 1012 | return status; |
1da177e4 LT |
1013 | } |
1014 | ||
ffa0160a | 1015 | static __be32 |
29ae7f9d AS |
1016 | nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
1017 | stateid_t *src_stateid, struct file **src, | |
1018 | stateid_t *dst_stateid, struct file **dst) | |
ffa0160a | 1019 | { |
ffa0160a CH |
1020 | __be32 status; |
1021 | ||
1022 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->save_fh, | |
29ae7f9d | 1023 | src_stateid, RD_STATE, src, NULL); |
ffa0160a CH |
1024 | if (status) { |
1025 | dprintk("NFSD: %s: couldn't process src stateid!\n", __func__); | |
1026 | goto out; | |
1027 | } | |
1028 | ||
1029 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, | |
29ae7f9d | 1030 | dst_stateid, WR_STATE, dst, NULL); |
ffa0160a CH |
1031 | if (status) { |
1032 | dprintk("NFSD: %s: couldn't process dst stateid!\n", __func__); | |
1033 | goto out_put_src; | |
1034 | } | |
1035 | ||
1036 | /* fix up for NFS-specific error code */ | |
29ae7f9d AS |
1037 | if (!S_ISREG(file_inode(*src)->i_mode) || |
1038 | !S_ISREG(file_inode(*dst)->i_mode)) { | |
ffa0160a CH |
1039 | status = nfserr_wrong_type; |
1040 | goto out_put_dst; | |
1041 | } | |
1042 | ||
29ae7f9d AS |
1043 | out: |
1044 | return status; | |
1045 | out_put_dst: | |
1046 | fput(*dst); | |
1047 | out_put_src: | |
1048 | fput(*src); | |
1049 | goto out; | |
1050 | } | |
1051 | ||
1052 | static __be32 | |
1053 | nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1054 | union nfsd4_op_u *u) |
29ae7f9d | 1055 | { |
eb69853d | 1056 | struct nfsd4_clone *clone = &u->clone; |
29ae7f9d AS |
1057 | struct file *src, *dst; |
1058 | __be32 status; | |
1059 | ||
1060 | status = nfsd4_verify_copy(rqstp, cstate, &clone->cl_src_stateid, &src, | |
1061 | &clone->cl_dst_stateid, &dst); | |
1062 | if (status) | |
1063 | goto out; | |
1064 | ||
ffa0160a CH |
1065 | status = nfsd4_clone_file_range(src, clone->cl_src_pos, |
1066 | dst, clone->cl_dst_pos, clone->cl_count); | |
1067 | ||
ffa0160a | 1068 | fput(dst); |
ffa0160a CH |
1069 | fput(src); |
1070 | out: | |
1071 | return status; | |
1072 | } | |
1073 | ||
29ae7f9d AS |
1074 | static __be32 |
1075 | nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1076 | union nfsd4_op_u *u) |
29ae7f9d | 1077 | { |
eb69853d | 1078 | struct nfsd4_copy *copy = &u->copy; |
29ae7f9d AS |
1079 | struct file *src, *dst; |
1080 | __be32 status; | |
1081 | ssize_t bytes; | |
1082 | ||
1083 | status = nfsd4_verify_copy(rqstp, cstate, ©->cp_src_stateid, &src, | |
1084 | ©->cp_dst_stateid, &dst); | |
1085 | if (status) | |
1086 | goto out; | |
1087 | ||
1088 | bytes = nfsd_copy_file_range(src, copy->cp_src_pos, | |
1089 | dst, copy->cp_dst_pos, copy->cp_count); | |
1090 | ||
1091 | if (bytes < 0) | |
1092 | status = nfserrno(bytes); | |
1093 | else { | |
1094 | copy->cp_res.wr_bytes_written = bytes; | |
1095 | copy->cp_res.wr_stable_how = NFS_UNSTABLE; | |
1096 | copy->cp_consecutive = 1; | |
1097 | copy->cp_synchronous = 1; | |
1098 | gen_boot_verifier(©->cp_res.wr_verifier, SVC_NET(rqstp)); | |
1099 | status = nfs_ok; | |
1100 | } | |
1101 | ||
1102 | fput(src); | |
1103 | fput(dst); | |
1104 | out: | |
1105 | return status; | |
1106 | } | |
1107 | ||
95d871f0 AS |
1108 | static __be32 |
1109 | nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
1110 | struct nfsd4_fallocate *fallocate, int flags) | |
1111 | { | |
1112 | __be32 status = nfserr_notsupp; | |
1113 | struct file *file; | |
1114 | ||
aa0d6aed | 1115 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
95d871f0 | 1116 | &fallocate->falloc_stateid, |
af90f707 | 1117 | WR_STATE, &file, NULL); |
95d871f0 AS |
1118 | if (status != nfs_ok) { |
1119 | dprintk("NFSD: nfsd4_fallocate: couldn't process stateid!\n"); | |
1120 | return status; | |
1121 | } | |
1122 | ||
1123 | status = nfsd4_vfs_fallocate(rqstp, &cstate->current_fh, file, | |
1124 | fallocate->falloc_offset, | |
1125 | fallocate->falloc_length, | |
1126 | flags); | |
1127 | fput(file); | |
1128 | return status; | |
1129 | } | |
1130 | ||
1131 | static __be32 | |
1132 | nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1133 | union nfsd4_op_u *u) |
95d871f0 | 1134 | { |
eb69853d | 1135 | return nfsd4_fallocate(rqstp, cstate, &u->allocate, 0); |
95d871f0 AS |
1136 | } |
1137 | ||
b0cb9085 AS |
1138 | static __be32 |
1139 | nfsd4_deallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1140 | union nfsd4_op_u *u) |
b0cb9085 | 1141 | { |
eb69853d | 1142 | return nfsd4_fallocate(rqstp, cstate, &u->deallocate, |
b0cb9085 AS |
1143 | FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE); |
1144 | } | |
1145 | ||
24bab491 AS |
1146 | static __be32 |
1147 | nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1148 | union nfsd4_op_u *u) |
24bab491 | 1149 | { |
eb69853d | 1150 | struct nfsd4_seek *seek = &u->seek; |
24bab491 AS |
1151 | int whence; |
1152 | __be32 status; | |
1153 | struct file *file; | |
1154 | ||
aa0d6aed | 1155 | status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, |
24bab491 | 1156 | &seek->seek_stateid, |
af90f707 | 1157 | RD_STATE, &file, NULL); |
24bab491 AS |
1158 | if (status) { |
1159 | dprintk("NFSD: nfsd4_seek: couldn't process stateid!\n"); | |
1160 | return status; | |
1161 | } | |
1162 | ||
1163 | switch (seek->seek_whence) { | |
1164 | case NFS4_CONTENT_DATA: | |
1165 | whence = SEEK_DATA; | |
1166 | break; | |
1167 | case NFS4_CONTENT_HOLE: | |
1168 | whence = SEEK_HOLE; | |
1169 | break; | |
1170 | default: | |
1171 | status = nfserr_union_notsupp; | |
1172 | goto out; | |
1173 | } | |
1174 | ||
1175 | /* | |
1176 | * Note: This call does change file->f_pos, but nothing in NFSD | |
1177 | * should ever file->f_pos. | |
1178 | */ | |
1179 | seek->seek_pos = vfs_llseek(file, seek->seek_offset, whence); | |
1180 | if (seek->seek_pos < 0) | |
1181 | status = nfserrno(seek->seek_pos); | |
1182 | else if (seek->seek_pos >= i_size_read(file_inode(file))) | |
1183 | seek->seek_eof = true; | |
1184 | ||
1185 | out: | |
1186 | fput(file); | |
1187 | return status; | |
1188 | } | |
1189 | ||
1da177e4 LT |
1190 | /* This routine never returns NFS_OK! If there are no other errors, it |
1191 | * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the | |
1192 | * attributes matched. VERIFY is implemented by mapping NFSERR_SAME | |
1193 | * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK. | |
1194 | */ | |
b37ad28b | 1195 | static __be32 |
c954e2a5 | 1196 | _nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, |
ca364317 | 1197 | struct nfsd4_verify *verify) |
1da177e4 | 1198 | { |
2ebbc012 | 1199 | __be32 *buf, *p; |
1da177e4 | 1200 | int count; |
b37ad28b | 1201 | __be32 status; |
1da177e4 | 1202 | |
8837abca | 1203 | status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); |
1da177e4 LT |
1204 | if (status) |
1205 | return status; | |
1206 | ||
3c8e0316 YZ |
1207 | status = check_attr_support(rqstp, cstate, verify->ve_bmval, NULL); |
1208 | if (status) | |
1209 | return status; | |
1210 | ||
1da177e4 LT |
1211 | if ((verify->ve_bmval[0] & FATTR4_WORD0_RDATTR_ERROR) |
1212 | || (verify->ve_bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1)) | |
1213 | return nfserr_inval; | |
1214 | if (verify->ve_attrlen & 3) | |
1215 | return nfserr_inval; | |
1216 | ||
1217 | /* count in words: | |
1218 | * bitmap_len(1) + bitmap(2) + attr_len(1) = 4 | |
1219 | */ | |
1220 | count = 4 + (verify->ve_attrlen >> 2); | |
1221 | buf = kmalloc(count << 2, GFP_KERNEL); | |
1222 | if (!buf) | |
3e772463 | 1223 | return nfserr_jukebox; |
1da177e4 | 1224 | |
84822d0b | 1225 | p = buf; |
d5184658 | 1226 | status = nfsd4_encode_fattr_to_buf(&p, count, &cstate->current_fh, |
ca364317 | 1227 | cstate->current_fh.fh_export, |
d5184658 BF |
1228 | cstate->current_fh.fh_dentry, |
1229 | verify->ve_bmval, | |
406a7ea9 | 1230 | rqstp, 0); |
41ae6e71 BF |
1231 | /* |
1232 | * If nfsd4_encode_fattr() ran out of space, assume that's because | |
1233 | * the attributes are longer (hence different) than those given: | |
1234 | */ | |
84822d0b | 1235 | if (status == nfserr_resource) |
1da177e4 LT |
1236 | status = nfserr_not_same; |
1237 | if (status) | |
1238 | goto out_kfree; | |
1239 | ||
95ec28cd BH |
1240 | /* skip bitmap */ |
1241 | p = buf + 1 + ntohl(buf[0]); | |
1da177e4 LT |
1242 | status = nfserr_not_same; |
1243 | if (ntohl(*p++) != verify->ve_attrlen) | |
1244 | goto out_kfree; | |
1245 | if (!memcmp(p, verify->ve_attrval, verify->ve_attrlen)) | |
1246 | status = nfserr_same; | |
1247 | ||
1248 | out_kfree: | |
1249 | kfree(buf); | |
1250 | return status; | |
1251 | } | |
1252 | ||
c954e2a5 BF |
1253 | static __be32 |
1254 | nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1255 | union nfsd4_op_u *u) |
c954e2a5 BF |
1256 | { |
1257 | __be32 status; | |
1258 | ||
eb69853d | 1259 | status = _nfsd4_verify(rqstp, cstate, &u->verify); |
c954e2a5 BF |
1260 | return status == nfserr_not_same ? nfs_ok : status; |
1261 | } | |
1262 | ||
1263 | static __be32 | |
1264 | nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, | |
eb69853d | 1265 | union nfsd4_op_u *u) |
c954e2a5 BF |
1266 | { |
1267 | __be32 status; | |
1268 | ||
eb69853d | 1269 | status = _nfsd4_verify(rqstp, cstate, &u->nverify); |
c954e2a5 BF |
1270 | return status == nfserr_same ? nfs_ok : status; |
1271 | } | |
1272 | ||
9cf514cc CH |
1273 | #ifdef CONFIG_NFSD_PNFS |
1274 | static const struct nfsd4_layout_ops * | |
1275 | nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type) | |
1276 | { | |
8a4c3926 | 1277 | if (!exp->ex_layout_types) { |
9cf514cc CH |
1278 | dprintk("%s: export does not support pNFS\n", __func__); |
1279 | return NULL; | |
1280 | } | |
1281 | ||
b550a32e AK |
1282 | if (layout_type >= LAYOUT_TYPE_MAX || |
1283 | !(exp->ex_layout_types & (1 << layout_type))) { | |
9cf514cc CH |
1284 | dprintk("%s: layout type %d not supported\n", |
1285 | __func__, layout_type); | |
1286 | return NULL; | |
1287 | } | |
1288 | ||
1289 | return nfsd4_layout_ops[layout_type]; | |
1290 | } | |
1291 | ||
1292 | static __be32 | |
1293 | nfsd4_getdeviceinfo(struct svc_rqst *rqstp, | |
eb69853d | 1294 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1295 | { |
eb69853d | 1296 | struct nfsd4_getdeviceinfo *gdp = &u->getdeviceinfo; |
9cf514cc CH |
1297 | const struct nfsd4_layout_ops *ops; |
1298 | struct nfsd4_deviceid_map *map; | |
1299 | struct svc_export *exp; | |
1300 | __be32 nfserr; | |
1301 | ||
1302 | dprintk("%s: layout_type %u dev_id [0x%llx:0x%x] maxcnt %u\n", | |
1303 | __func__, | |
1304 | gdp->gd_layout_type, | |
1305 | gdp->gd_devid.fsid_idx, gdp->gd_devid.generation, | |
1306 | gdp->gd_maxcount); | |
1307 | ||
1308 | map = nfsd4_find_devid_map(gdp->gd_devid.fsid_idx); | |
1309 | if (!map) { | |
1310 | dprintk("%s: couldn't find device ID to export mapping!\n", | |
1311 | __func__); | |
1312 | return nfserr_noent; | |
1313 | } | |
1314 | ||
1315 | exp = rqst_exp_find(rqstp, map->fsid_type, map->fsid); | |
1316 | if (IS_ERR(exp)) { | |
1317 | dprintk("%s: could not find device id\n", __func__); | |
1318 | return nfserr_noent; | |
1319 | } | |
1320 | ||
1321 | nfserr = nfserr_layoutunavailable; | |
1322 | ops = nfsd4_layout_verify(exp, gdp->gd_layout_type); | |
1323 | if (!ops) | |
1324 | goto out; | |
1325 | ||
1326 | nfserr = nfs_ok; | |
f99d4fbd CH |
1327 | if (gdp->gd_maxcount != 0) { |
1328 | nfserr = ops->proc_getdeviceinfo(exp->ex_path.mnt->mnt_sb, | |
d7c920d1 | 1329 | rqstp, cstate->session->se_client, gdp); |
f99d4fbd | 1330 | } |
9cf514cc CH |
1331 | |
1332 | gdp->gd_notify_types &= ops->notify_types; | |
9cf514cc | 1333 | out: |
a1420384 | 1334 | exp_put(exp); |
9cf514cc CH |
1335 | return nfserr; |
1336 | } | |
1337 | ||
1338 | static __be32 | |
1339 | nfsd4_layoutget(struct svc_rqst *rqstp, | |
eb69853d | 1340 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1341 | { |
eb69853d | 1342 | struct nfsd4_layoutget *lgp = &u->layoutget; |
9cf514cc CH |
1343 | struct svc_fh *current_fh = &cstate->current_fh; |
1344 | const struct nfsd4_layout_ops *ops; | |
1345 | struct nfs4_layout_stateid *ls; | |
1346 | __be32 nfserr; | |
1347 | int accmode; | |
1348 | ||
1349 | switch (lgp->lg_seg.iomode) { | |
1350 | case IOMODE_READ: | |
1351 | accmode = NFSD_MAY_READ; | |
1352 | break; | |
1353 | case IOMODE_RW: | |
1354 | accmode = NFSD_MAY_READ | NFSD_MAY_WRITE; | |
1355 | break; | |
1356 | default: | |
1357 | dprintk("%s: invalid iomode %d\n", | |
1358 | __func__, lgp->lg_seg.iomode); | |
1359 | nfserr = nfserr_badiomode; | |
1360 | goto out; | |
1361 | } | |
1362 | ||
1363 | nfserr = fh_verify(rqstp, current_fh, 0, accmode); | |
1364 | if (nfserr) | |
1365 | goto out; | |
1366 | ||
1367 | nfserr = nfserr_layoutunavailable; | |
1368 | ops = nfsd4_layout_verify(current_fh->fh_export, lgp->lg_layout_type); | |
1369 | if (!ops) | |
1370 | goto out; | |
1371 | ||
1372 | /* | |
1373 | * Verify minlength and range as per RFC5661: | |
1374 | * o If loga_length is less than loga_minlength, | |
1375 | * the metadata server MUST return NFS4ERR_INVAL. | |
1376 | * o If the sum of loga_offset and loga_minlength exceeds | |
1377 | * NFS4_UINT64_MAX, and loga_minlength is not | |
1378 | * NFS4_UINT64_MAX, the error NFS4ERR_INVAL MUST result. | |
1379 | * o If the sum of loga_offset and loga_length exceeds | |
1380 | * NFS4_UINT64_MAX, and loga_length is not NFS4_UINT64_MAX, | |
1381 | * the error NFS4ERR_INVAL MUST result. | |
1382 | */ | |
1383 | nfserr = nfserr_inval; | |
1384 | if (lgp->lg_seg.length < lgp->lg_minlength || | |
1385 | (lgp->lg_minlength != NFS4_MAX_UINT64 && | |
1386 | lgp->lg_minlength > NFS4_MAX_UINT64 - lgp->lg_seg.offset) || | |
1387 | (lgp->lg_seg.length != NFS4_MAX_UINT64 && | |
1388 | lgp->lg_seg.length > NFS4_MAX_UINT64 - lgp->lg_seg.offset)) | |
1389 | goto out; | |
1390 | if (lgp->lg_seg.length == 0) | |
1391 | goto out; | |
1392 | ||
1393 | nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lgp->lg_sid, | |
1394 | true, lgp->lg_layout_type, &ls); | |
31ef83dc CH |
1395 | if (nfserr) { |
1396 | trace_layout_get_lookup_fail(&lgp->lg_sid); | |
9cf514cc | 1397 | goto out; |
31ef83dc | 1398 | } |
9cf514cc | 1399 | |
c5c707f9 CH |
1400 | nfserr = nfserr_recallconflict; |
1401 | if (atomic_read(&ls->ls_stid.sc_file->fi_lo_recalls)) | |
1402 | goto out_put_stid; | |
1403 | ||
2b0143b5 | 1404 | nfserr = ops->proc_layoutget(d_inode(current_fh->fh_dentry), |
9cf514cc CH |
1405 | current_fh, lgp); |
1406 | if (nfserr) | |
1407 | goto out_put_stid; | |
1408 | ||
1409 | nfserr = nfsd4_insert_layout(lgp, ls); | |
1410 | ||
1411 | out_put_stid: | |
cc8a5532 | 1412 | mutex_unlock(&ls->ls_mutex); |
9cf514cc CH |
1413 | nfs4_put_stid(&ls->ls_stid); |
1414 | out: | |
1415 | return nfserr; | |
1416 | } | |
1417 | ||
1418 | static __be32 | |
1419 | nfsd4_layoutcommit(struct svc_rqst *rqstp, | |
eb69853d | 1420 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1421 | { |
eb69853d | 1422 | struct nfsd4_layoutcommit *lcp = &u->layoutcommit; |
9cf514cc CH |
1423 | const struct nfsd4_layout_seg *seg = &lcp->lc_seg; |
1424 | struct svc_fh *current_fh = &cstate->current_fh; | |
1425 | const struct nfsd4_layout_ops *ops; | |
1426 | loff_t new_size = lcp->lc_last_wr + 1; | |
1427 | struct inode *inode; | |
1428 | struct nfs4_layout_stateid *ls; | |
1429 | __be32 nfserr; | |
1430 | ||
1431 | nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_WRITE); | |
1432 | if (nfserr) | |
1433 | goto out; | |
1434 | ||
1435 | nfserr = nfserr_layoutunavailable; | |
1436 | ops = nfsd4_layout_verify(current_fh->fh_export, lcp->lc_layout_type); | |
1437 | if (!ops) | |
1438 | goto out; | |
2b0143b5 | 1439 | inode = d_inode(current_fh->fh_dentry); |
9cf514cc CH |
1440 | |
1441 | nfserr = nfserr_inval; | |
1442 | if (new_size <= seg->offset) { | |
1443 | dprintk("pnfsd: last write before layout segment\n"); | |
1444 | goto out; | |
1445 | } | |
1446 | if (new_size > seg->offset + seg->length) { | |
1447 | dprintk("pnfsd: last write beyond layout segment\n"); | |
1448 | goto out; | |
1449 | } | |
1450 | if (!lcp->lc_newoffset && new_size > i_size_read(inode)) { | |
1451 | dprintk("pnfsd: layoutcommit beyond EOF\n"); | |
1452 | goto out; | |
1453 | } | |
1454 | ||
1455 | nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lcp->lc_sid, | |
1456 | false, lcp->lc_layout_type, | |
1457 | &ls); | |
1458 | if (nfserr) { | |
31ef83dc | 1459 | trace_layout_commit_lookup_fail(&lcp->lc_sid); |
9cf514cc CH |
1460 | /* fixup error code as per RFC5661 */ |
1461 | if (nfserr == nfserr_bad_stateid) | |
1462 | nfserr = nfserr_badlayout; | |
1463 | goto out; | |
1464 | } | |
1465 | ||
cc8a5532 JL |
1466 | /* LAYOUTCOMMIT does not require any serialization */ |
1467 | mutex_unlock(&ls->ls_mutex); | |
1468 | ||
9cf514cc CH |
1469 | if (new_size > i_size_read(inode)) { |
1470 | lcp->lc_size_chg = 1; | |
1471 | lcp->lc_newsize = new_size; | |
1472 | } else { | |
1473 | lcp->lc_size_chg = 0; | |
1474 | } | |
1475 | ||
d8398fc1 | 1476 | nfserr = ops->proc_layoutcommit(inode, lcp); |
9cf514cc CH |
1477 | nfs4_put_stid(&ls->ls_stid); |
1478 | out: | |
1479 | return nfserr; | |
1480 | } | |
1481 | ||
1482 | static __be32 | |
1483 | nfsd4_layoutreturn(struct svc_rqst *rqstp, | |
eb69853d | 1484 | struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) |
9cf514cc | 1485 | { |
eb69853d | 1486 | struct nfsd4_layoutreturn *lrp = &u->layoutreturn; |
9cf514cc CH |
1487 | struct svc_fh *current_fh = &cstate->current_fh; |
1488 | __be32 nfserr; | |
1489 | ||
1490 | nfserr = fh_verify(rqstp, current_fh, 0, NFSD_MAY_NOP); | |
1491 | if (nfserr) | |
1492 | goto out; | |
1493 | ||
1494 | nfserr = nfserr_layoutunavailable; | |
1495 | if (!nfsd4_layout_verify(current_fh->fh_export, lrp->lr_layout_type)) | |
1496 | goto out; | |
1497 | ||
1498 | switch (lrp->lr_seg.iomode) { | |
1499 | case IOMODE_READ: | |
1500 | case IOMODE_RW: | |
1501 | case IOMODE_ANY: | |
1502 | break; | |
1503 | default: | |
1504 | dprintk("%s: invalid iomode %d\n", __func__, | |
1505 | lrp->lr_seg.iomode); | |
1506 | nfserr = nfserr_inval; | |
1507 | goto out; | |
1508 | } | |
1509 | ||
1510 | switch (lrp->lr_return_type) { | |
1511 | case RETURN_FILE: | |
1512 | nfserr = nfsd4_return_file_layouts(rqstp, cstate, lrp); | |
1513 | break; | |
1514 | case RETURN_FSID: | |
1515 | case RETURN_ALL: | |
1516 | nfserr = nfsd4_return_client_layouts(rqstp, cstate, lrp); | |
1517 | break; | |
1518 | default: | |
1519 | dprintk("%s: invalid return_type %d\n", __func__, | |
1520 | lrp->lr_return_type); | |
1521 | nfserr = nfserr_inval; | |
1522 | break; | |
1523 | } | |
1524 | out: | |
1525 | return nfserr; | |
1526 | } | |
1527 | #endif /* CONFIG_NFSD_PNFS */ | |
1528 | ||
1da177e4 LT |
1529 | /* |
1530 | * NULL call. | |
1531 | */ | |
7111c66e | 1532 | static __be32 |
a6beb732 | 1533 | nfsd4_proc_null(struct svc_rqst *rqstp) |
1da177e4 LT |
1534 | { |
1535 | return nfs_ok; | |
1536 | } | |
1537 | ||
e2b20950 SA |
1538 | static inline void nfsd4_increment_op_stats(u32 opnum) |
1539 | { | |
1540 | if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP) | |
1541 | nfsdstats.nfs4_opcount[opnum]++; | |
1542 | } | |
1543 | ||
f9bb94c4 AA |
1544 | enum nfsd4_op_flags { |
1545 | ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ | |
5ece3caf MJ |
1546 | ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ |
1547 | ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ | |
68d93184 BF |
1548 | /* For rfc 5661 section 2.6.3.1.1: */ |
1549 | OP_HANDLES_WRONGSEC = 1 << 3, | |
1550 | OP_IS_PUTFH_LIKE = 1 << 4, | |
1091006c | 1551 | /* |
c856694e BF |
1552 | * These are the ops whose result size we estimate before |
1553 | * encoding, to avoid performing an op then not being able to | |
1554 | * respond or cache a response. This includes writes and setattrs | |
1555 | * as well as the operations usually called "nonidempotent": | |
1556 | */ | |
1557 | OP_MODIFIES_SOMETHING = 1 << 5, | |
1558 | /* | |
1559 | * Cache compounds containing these ops in the xid-based drc: | |
1091006c BF |
1560 | * We use the DRC for compounds containing non-idempotent |
1561 | * operations, *except* those that are 4.1-specific (since | |
1562 | * sessions provide their own EOS), and except for stateful | |
1563 | * operations other than setclientid and setclientid_confirm | |
1564 | * (since sequence numbers provide EOS for open, lock, etc in | |
1565 | * the v4.0 case). | |
1566 | */ | |
c856694e | 1567 | OP_CACHEME = 1 << 6, |
8b70484c TM |
1568 | /* |
1569 | * These are ops which clear current state id. | |
1570 | */ | |
1571 | OP_CLEAR_STATEID = 1 << 7, | |
c856694e BF |
1572 | }; |
1573 | ||
1574 | struct nfsd4_operation { | |
eb69853d CH |
1575 | __be32 (*op_func)(struct svc_rqst *, struct nfsd4_compound_state *, |
1576 | union nfsd4_op_u *); | |
c856694e BF |
1577 | u32 op_flags; |
1578 | char *op_name; | |
58e7b33a | 1579 | /* Try to get response size before operation */ |
1c122638 | 1580 | u32 (*op_rsize_bop)(struct svc_rqst *, struct nfsd4_op *); |
57832e7b CH |
1581 | void (*op_get_currentstateid)(struct nfsd4_compound_state *, |
1582 | union nfsd4_op_u *); | |
b60e9859 CH |
1583 | void (*op_set_currentstateid)(struct nfsd4_compound_state *, |
1584 | union nfsd4_op_u *); | |
b591480b BF |
1585 | }; |
1586 | ||
bb2a8b0c | 1587 | static const struct nfsd4_operation nfsd4_ops[]; |
b591480b | 1588 | |
f1c7f79b | 1589 | static const char *nfsd4_op_name(unsigned opnum); |
b001a1b6 | 1590 | |
f9bb94c4 | 1591 | /* |
57716355 | 1592 | * Enforce NFSv4.1 COMPOUND ordering rules: |
f9bb94c4 | 1593 | * |
57716355 BF |
1594 | * Also note, enforced elsewhere: |
1595 | * - SEQUENCE other than as first op results in | |
1596 | * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().) | |
1d1bc8f2 BF |
1597 | * - BIND_CONN_TO_SESSION must be the only op in its compound. |
1598 | * (Enforced in nfsd4_bind_conn_to_session().) | |
57716355 BF |
1599 | * - DESTROY_SESSION must be the final operation in a compound, if |
1600 | * sessionid's in SEQUENCE and DESTROY_SESSION are the same. | |
1601 | * (Enforced in nfsd4_destroy_session().) | |
f9bb94c4 | 1602 | */ |
57716355 | 1603 | static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) |
f9bb94c4 | 1604 | { |
57716355 BF |
1605 | struct nfsd4_op *op = &args->ops[0]; |
1606 | ||
1607 | /* These ordering requirements don't apply to NFSv4.0: */ | |
1608 | if (args->minorversion == 0) | |
1609 | return nfs_ok; | |
1610 | /* This is weird, but OK, not our problem: */ | |
1611 | if (args->opcnt == 0) | |
1612 | return nfs_ok; | |
1613 | if (op->status == nfserr_op_illegal) | |
1614 | return nfs_ok; | |
1615 | if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP)) | |
1616 | return nfserr_op_not_in_session; | |
1617 | if (op->opnum == OP_SEQUENCE) | |
1618 | return nfs_ok; | |
1619 | if (args->opcnt != 1) | |
1620 | return nfserr_not_only_op; | |
1621 | return nfs_ok; | |
f9bb94c4 AA |
1622 | } |
1623 | ||
bb2a8b0c | 1624 | static inline const struct nfsd4_operation *OPDESC(struct nfsd4_op *op) |
22b03214 BF |
1625 | { |
1626 | return &nfsd4_ops[op->opnum]; | |
1627 | } | |
1628 | ||
1091006c BF |
1629 | bool nfsd4_cache_this_op(struct nfsd4_op *op) |
1630 | { | |
e372ba60 BF |
1631 | if (op->opnum == OP_ILLEGAL) |
1632 | return false; | |
c856694e | 1633 | return OPDESC(op)->op_flags & OP_CACHEME; |
1091006c BF |
1634 | } |
1635 | ||
68d93184 BF |
1636 | static bool need_wrongsec_check(struct svc_rqst *rqstp) |
1637 | { | |
1638 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1639 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
1640 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
1641 | struct nfsd4_op *next = &argp->ops[resp->opcnt]; | |
bb2a8b0c CH |
1642 | const struct nfsd4_operation *thisd = OPDESC(this); |
1643 | const struct nfsd4_operation *nextd; | |
68d93184 | 1644 | |
68d93184 BF |
1645 | /* |
1646 | * Most ops check wronsec on our own; only the putfh-like ops | |
1647 | * have special rules. | |
1648 | */ | |
1649 | if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) | |
1650 | return false; | |
1651 | /* | |
1652 | * rfc 5661 2.6.3.1.1.6: don't bother erroring out a | |
1653 | * put-filehandle operation if we're not going to use the | |
1654 | * result: | |
1655 | */ | |
1656 | if (argp->opcnt == resp->opcnt) | |
1657 | return false; | |
51904b08 BF |
1658 | if (next->opnum == OP_ILLEGAL) |
1659 | return false; | |
68d93184 BF |
1660 | nextd = OPDESC(next); |
1661 | /* | |
1662 | * Rest of 2.6.3.1.1: certain operations will return WRONGSEC | |
1663 | * errors themselves as necessary; others should check for them | |
1664 | * now: | |
1665 | */ | |
1666 | return !(nextd->op_flags & OP_HANDLES_WRONGSEC); | |
1667 | } | |
1668 | ||
2d124dfa BF |
1669 | static void svcxdr_init_encode(struct svc_rqst *rqstp, |
1670 | struct nfsd4_compoundres *resp) | |
1671 | { | |
1672 | struct xdr_stream *xdr = &resp->xdr; | |
1673 | struct xdr_buf *buf = &rqstp->rq_res; | |
1674 | struct kvec *head = buf->head; | |
1675 | ||
1676 | xdr->buf = buf; | |
ddd1ea56 | 1677 | xdr->iov = head; |
2d124dfa | 1678 | xdr->p = head->iov_base + head->iov_len; |
a5cddc88 | 1679 | xdr->end = head->iov_base + PAGE_SIZE - rqstp->rq_auth_slack; |
6ac90391 BF |
1680 | /* Tail and page_len should be zero at this point: */ |
1681 | buf->len = buf->head[0].iov_len; | |
2825a7f9 | 1682 | xdr->scratch.iov_len = 0; |
05638dc7 | 1683 | xdr->page_ptr = buf->pages - 1; |
2825a7f9 | 1684 | buf->buflen = PAGE_SIZE * (1 + rqstp->rq_page_end - buf->pages) |
a5cddc88 | 1685 | - rqstp->rq_auth_slack; |
2d124dfa BF |
1686 | } |
1687 | ||
1da177e4 LT |
1688 | /* |
1689 | * COMPOUND call. | |
1690 | */ | |
7111c66e | 1691 | static __be32 |
a6beb732 | 1692 | nfsd4_proc_compound(struct svc_rqst *rqstp) |
1da177e4 | 1693 | { |
a6beb732 CH |
1694 | struct nfsd4_compoundargs *args = rqstp->rq_argp; |
1695 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
1da177e4 | 1696 | struct nfsd4_op *op; |
bb2a8b0c | 1697 | const struct nfsd4_operation *opdesc; |
e354d571 | 1698 | struct nfsd4_compound_state *cstate = &resp->cstate; |
4daeed25 KM |
1699 | struct svc_fh *current_fh = &cstate->current_fh; |
1700 | struct svc_fh *save_fh = &cstate->save_fh; | |
b37ad28b | 1701 | __be32 status; |
1da177e4 | 1702 | |
2d124dfa | 1703 | svcxdr_init_encode(rqstp, resp); |
4aea24b2 | 1704 | resp->tagp = resp->xdr.p; |
1da177e4 | 1705 | /* reserve space for: taglen, tag, and opcnt */ |
d3f627c8 | 1706 | xdr_reserve_space(&resp->xdr, 8 + args->taglen); |
1da177e4 LT |
1707 | resp->taglen = args->taglen; |
1708 | resp->tag = args->tag; | |
1da177e4 | 1709 | resp->rqstp = rqstp; |
4daeed25 | 1710 | cstate->minorversion = args->minorversion; |
4daeed25 KM |
1711 | fh_init(current_fh, NFS4_FHSIZE); |
1712 | fh_init(save_fh, NFS4_FHSIZE); | |
8ff30fa4 N |
1713 | /* |
1714 | * Don't use the deferral mechanism for NFSv4; compounds make it | |
1715 | * too hard to avoid non-idempotency problems. | |
1716 | */ | |
30660e04 | 1717 | clear_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); |
1da177e4 LT |
1718 | |
1719 | /* | |
1720 | * According to RFC3010, this takes precedence over all other errors. | |
1721 | */ | |
1722 | status = nfserr_minor_vers_mismatch; | |
35f7a14f | 1723 | if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0) |
1da177e4 LT |
1724 | goto out; |
1725 | ||
57716355 BF |
1726 | status = nfs41_check_op_ordering(args); |
1727 | if (status) { | |
f9bb94c4 | 1728 | op = &args->ops[0]; |
57716355 | 1729 | op->status = status; |
f9bb94c4 AA |
1730 | goto encode_op; |
1731 | } | |
1732 | ||
1da177e4 LT |
1733 | while (!status && resp->opcnt < args->opcnt) { |
1734 | op = &args->ops[resp->opcnt++]; | |
1735 | ||
b001a1b6 BH |
1736 | dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", |
1737 | resp->opcnt, args->opcnt, op->opnum, | |
1738 | nfsd4_op_name(op->opnum)); | |
1da177e4 LT |
1739 | /* |
1740 | * The XDR decode routines may have pre-set op->status; | |
1741 | * for example, if there is a miscellaneous XDR error | |
1742 | * it will be set to nfserr_bad_xdr. | |
1743 | */ | |
9d313b17 BF |
1744 | if (op->status) { |
1745 | if (op->opnum == OP_OPEN) | |
1746 | op->status = nfsd4_open_omfg(rqstp, cstate, op); | |
1da177e4 | 1747 | goto encode_op; |
9d313b17 | 1748 | } |
1da177e4 | 1749 | |
22b03214 | 1750 | opdesc = OPDESC(op); |
b591480b | 1751 | |
4daeed25 | 1752 | if (!current_fh->fh_dentry) { |
27d630ec | 1753 | if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { |
42ca0993 BF |
1754 | op->status = nfserr_nofilehandle; |
1755 | goto encode_op; | |
1756 | } | |
4daeed25 | 1757 | } else if (current_fh->fh_export->ex_fslocs.migrated && |
eeac294e | 1758 | !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) { |
42ca0993 | 1759 | op->status = nfserr_moved; |
1da177e4 LT |
1760 | goto encode_op; |
1761 | } | |
b591480b | 1762 | |
2336745e KM |
1763 | fh_clear_wcc(current_fh); |
1764 | ||
58e7b33a MJ |
1765 | /* If op is non-idempotent */ |
1766 | if (opdesc->op_flags & OP_MODIFIES_SOMETHING) { | |
4c69d585 | 1767 | /* |
a8095f7e BF |
1768 | * Don't execute this op if we couldn't encode a |
1769 | * succesful reply: | |
1770 | */ | |
1771 | u32 plen = opdesc->op_rsize_bop(rqstp, op); | |
1772 | /* | |
1773 | * Plus if there's another operation, make sure | |
4c69d585 BF |
1774 | * we'll have space to at least encode an error: |
1775 | */ | |
1776 | if (resp->opcnt < args->opcnt) | |
1777 | plen += COMPOUND_ERR_SLACK_SPACE; | |
58e7b33a MJ |
1778 | op->status = nfsd4_check_resp_size(resp, plen); |
1779 | } | |
1780 | ||
1781 | if (op->status) | |
1782 | goto encode_op; | |
1783 | ||
b600de7a BF |
1784 | if (opdesc->op_get_currentstateid) |
1785 | opdesc->op_get_currentstateid(cstate, &op->u); | |
1786 | op->status = opdesc->op_func(rqstp, cstate, &op->u); | |
1da177e4 | 1787 | |
9a307403 BF |
1788 | /* Only from SEQUENCE */ |
1789 | if (cstate->status == nfserr_replay_cache) { | |
1790 | dprintk("%s NFS4.1 replay from cache\n", __func__); | |
1791 | status = op->status; | |
1792 | goto out; | |
1793 | } | |
8b70484c TM |
1794 | if (!op->status) { |
1795 | if (opdesc->op_set_currentstateid) | |
1796 | opdesc->op_set_currentstateid(cstate, &op->u); | |
1797 | ||
1798 | if (opdesc->op_flags & OP_CLEAR_STATEID) | |
37c593c5 | 1799 | clear_current_stateid(cstate); |
8b70484c TM |
1800 | |
1801 | if (need_wrongsec_check(rqstp)) | |
4daeed25 | 1802 | op->status = check_nfsd_access(current_fh->fh_export, rqstp); |
8b70484c | 1803 | } |
1da177e4 | 1804 | encode_op: |
a90b061c | 1805 | if (op->status == nfserr_replay_me) { |
a4f1706a | 1806 | op->replay = &cstate->replay_owner->so_replay; |
d0a381dd | 1807 | nfsd4_encode_replay(&resp->xdr, op); |
1da177e4 LT |
1808 | status = op->status = op->replay->rp_status; |
1809 | } else { | |
1810 | nfsd4_encode_operation(resp, op); | |
1811 | status = op->status; | |
1812 | } | |
0407717d BH |
1813 | |
1814 | dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", | |
1815 | args->ops, args->opcnt, resp->opcnt, op->opnum, | |
1816 | be32_to_cpu(status)); | |
1817 | ||
58fb12e6 | 1818 | nfsd4_cstate_clear_replay(cstate); |
e2b20950 | 1819 | nfsd4_increment_op_stats(op->opnum); |
1da177e4 LT |
1820 | } |
1821 | ||
4daeed25 KM |
1822 | cstate->status = status; |
1823 | fh_put(current_fh); | |
1824 | fh_put(save_fh); | |
1825 | BUG_ON(cstate->replay_owner); | |
1da177e4 | 1826 | out: |
2f425878 | 1827 | /* Reset deferral mechanism for RPC deferrals */ |
30660e04 | 1828 | set_bit(RQ_USEDEFERRAL, &rqstp->rq_flags); |
3b12cd98 | 1829 | dprintk("nfsv4 compound returned %d\n", ntohl(status)); |
1da177e4 LT |
1830 | return status; |
1831 | } | |
1832 | ||
58e7b33a MJ |
1833 | #define op_encode_hdr_size (2) |
1834 | #define op_encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) | |
1835 | #define op_encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) | |
1836 | #define op_encode_change_info_maxsz (5) | |
1837 | #define nfs4_fattr_bitmap_maxsz (4) | |
1838 | ||
8c7424cf BF |
1839 | /* We'll fall back on returning no lockowner if run out of space: */ |
1840 | #define op_encode_lockowner_maxsz (0) | |
58e7b33a MJ |
1841 | #define op_encode_lock_denied_maxsz (8 + op_encode_lockowner_maxsz) |
1842 | ||
1843 | #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) | |
1844 | ||
1845 | #define op_encode_ace_maxsz (3 + nfs4_owner_maxsz) | |
1846 | #define op_encode_delegation_maxsz (1 + op_encode_stateid_maxsz + 1 + \ | |
1847 | op_encode_ace_maxsz) | |
1848 | ||
1849 | #define op_encode_channel_attrs_maxsz (6 + 1 + 1) | |
1850 | ||
1851 | static inline u32 nfsd4_only_status_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1852 | { | |
1853 | return (op_encode_hdr_size) * sizeof(__be32); | |
1854 | } | |
1855 | ||
1856 | static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1857 | { | |
1858 | return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); | |
1859 | } | |
1860 | ||
2282cd2c KM |
1861 | static inline u32 nfsd4_access_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1862 | { | |
1863 | /* ac_supported, ac_resp_access */ | |
1864 | return (op_encode_hdr_size + 2)* sizeof(__be32); | |
1865 | } | |
1866 | ||
58e7b33a MJ |
1867 | static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1868 | { | |
1869 | return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); | |
1870 | } | |
1871 | ||
1872 | static inline u32 nfsd4_create_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1873 | { | |
1874 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1875 | + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
1876 | } | |
1877 | ||
b86cef60 BF |
1878 | /* |
1879 | * Note since this is an idempotent operation we won't insist on failing | |
1880 | * the op prematurely if the estimate is too large. We may turn off splice | |
1881 | * reads unnecessarily. | |
1882 | */ | |
1883 | static inline u32 nfsd4_getattr_rsize(struct svc_rqst *rqstp, | |
1884 | struct nfsd4_op *op) | |
1885 | { | |
1886 | u32 *bmap = op->u.getattr.ga_bmval; | |
1887 | u32 bmap0 = bmap[0], bmap1 = bmap[1], bmap2 = bmap[2]; | |
1888 | u32 ret = 0; | |
1889 | ||
1890 | if (bmap0 & FATTR4_WORD0_ACL) | |
1891 | return svc_max_payload(rqstp); | |
1892 | if (bmap0 & FATTR4_WORD0_FS_LOCATIONS) | |
1893 | return svc_max_payload(rqstp); | |
1894 | ||
1895 | if (bmap1 & FATTR4_WORD1_OWNER) { | |
1896 | ret += IDMAP_NAMESZ + 4; | |
1897 | bmap1 &= ~FATTR4_WORD1_OWNER; | |
1898 | } | |
1899 | if (bmap1 & FATTR4_WORD1_OWNER_GROUP) { | |
1900 | ret += IDMAP_NAMESZ + 4; | |
1901 | bmap1 &= ~FATTR4_WORD1_OWNER_GROUP; | |
1902 | } | |
1903 | if (bmap0 & FATTR4_WORD0_FILEHANDLE) { | |
1904 | ret += NFS4_FHSIZE + 4; | |
1905 | bmap0 &= ~FATTR4_WORD0_FILEHANDLE; | |
1906 | } | |
1907 | if (bmap2 & FATTR4_WORD2_SECURITY_LABEL) { | |
1ec8c0c4 | 1908 | ret += NFS4_MAXLABELLEN + 12; |
b86cef60 BF |
1909 | bmap2 &= ~FATTR4_WORD2_SECURITY_LABEL; |
1910 | } | |
1911 | /* | |
1912 | * Largest of remaining attributes are 16 bytes (e.g., | |
1913 | * supported_attributes) | |
1914 | */ | |
1915 | ret += 16 * (hweight32(bmap0) + hweight32(bmap1) + hweight32(bmap2)); | |
1916 | /* bitmask, length */ | |
1917 | ret += 20; | |
1918 | return ret; | |
1919 | } | |
1920 | ||
2282cd2c KM |
1921 | static inline u32 nfsd4_getfh_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1922 | { | |
1923 | return (op_encode_hdr_size + 1) * sizeof(__be32) + NFS4_FHSIZE; | |
1924 | } | |
1925 | ||
58e7b33a MJ |
1926 | static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1927 | { | |
1928 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1929 | * sizeof(__be32); | |
1930 | } | |
1931 | ||
1932 | static inline u32 nfsd4_lock_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1933 | { | |
1934 | return (op_encode_hdr_size + op_encode_lock_denied_maxsz) | |
1935 | * sizeof(__be32); | |
1936 | } | |
1937 | ||
1938 | static inline u32 nfsd4_open_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1939 | { | |
1940 | return (op_encode_hdr_size + op_encode_stateid_maxsz | |
1941 | + op_encode_change_info_maxsz + 1 | |
1942 | + nfs4_fattr_bitmap_maxsz | |
1943 | + op_encode_delegation_maxsz) * sizeof(__be32); | |
1944 | } | |
1945 | ||
1946 | static inline u32 nfsd4_read_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1947 | { | |
1948 | u32 maxcount = 0, rlen = 0; | |
1949 | ||
1950 | maxcount = svc_max_payload(rqstp); | |
3c7aa15d | 1951 | rlen = min(op->u.read.rd_length, maxcount); |
58e7b33a | 1952 | |
622f560e | 1953 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(rlen)) * sizeof(__be32); |
58e7b33a MJ |
1954 | } |
1955 | ||
1956 | static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1957 | { | |
3c7aa15d | 1958 | u32 maxcount = 0, rlen = 0; |
58e7b33a | 1959 | |
3c7aa15d KM |
1960 | maxcount = svc_max_payload(rqstp); |
1961 | rlen = min(op->u.readdir.rd_maxcount, maxcount); | |
58e7b33a | 1962 | |
561f0ed4 BF |
1963 | return (op_encode_hdr_size + op_encode_verifier_maxsz + |
1964 | XDR_QUADLEN(rlen)) * sizeof(__be32); | |
58e7b33a MJ |
1965 | } |
1966 | ||
2282cd2c KM |
1967 | static inline u32 nfsd4_readlink_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1968 | { | |
1969 | return (op_encode_hdr_size + 1) * sizeof(__be32) + PAGE_SIZE; | |
1970 | } | |
1971 | ||
58e7b33a MJ |
1972 | static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1973 | { | |
1974 | return (op_encode_hdr_size + op_encode_change_info_maxsz) | |
1975 | * sizeof(__be32); | |
1976 | } | |
1977 | ||
1978 | static inline u32 nfsd4_rename_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
1979 | { | |
1980 | return (op_encode_hdr_size + op_encode_change_info_maxsz | |
1981 | + op_encode_change_info_maxsz) * sizeof(__be32); | |
1982 | } | |
1983 | ||
ccae70a9 BF |
1984 | static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp, |
1985 | struct nfsd4_op *op) | |
1986 | { | |
d1d84c96 BF |
1987 | return (op_encode_hdr_size |
1988 | + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) * sizeof(__be32); | |
ccae70a9 BF |
1989 | } |
1990 | ||
2282cd2c KM |
1991 | static inline u32 nfsd4_test_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1992 | { | |
1993 | return (op_encode_hdr_size + 1 + op->u.test_stateid.ts_num_ids) | |
1994 | * sizeof(__be32); | |
1995 | } | |
1996 | ||
58e7b33a MJ |
1997 | static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
1998 | { | |
1999 | return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); | |
2000 | } | |
2001 | ||
2282cd2c KM |
2002 | static inline u32 nfsd4_secinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2003 | { | |
2004 | return (op_encode_hdr_size + RPC_AUTH_MAXFLAVOR * | |
2005 | (4 + XDR_QUADLEN(GSS_OID_MAX_LEN))) * sizeof(__be32); | |
2006 | } | |
2007 | ||
58e7b33a MJ |
2008 | static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2009 | { | |
480efaee BF |
2010 | return (op_encode_hdr_size + 2 + XDR_QUADLEN(NFS4_VERIFIER_SIZE)) * |
2011 | sizeof(__be32); | |
58e7b33a MJ |
2012 | } |
2013 | ||
2014 | static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2015 | { | |
f34e432b | 2016 | return (op_encode_hdr_size + 2 + op_encode_verifier_maxsz) * sizeof(__be32); |
58e7b33a MJ |
2017 | } |
2018 | ||
2019 | static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2020 | { | |
2021 | return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\ | |
a8bb84bc KM |
2022 | 1 + 1 + /* eir_flags, spr_how */\ |
2023 | 4 + /* spo_must_enforce & _allow with bitmap */\ | |
58e7b33a MJ |
2024 | 2 + /*eir_server_owner.so_minor_id */\ |
2025 | /* eir_server_owner.so_major_id<> */\ | |
2026 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
2027 | /* eir_server_scope<> */\ | |
2028 | XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\ | |
2029 | 1 + /* eir_server_impl_id array length */\ | |
2030 | 0 /* ignored eir_server_impl_id contents */) * sizeof(__be32); | |
2031 | } | |
2032 | ||
2033 | static inline u32 nfsd4_bind_conn_to_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2034 | { | |
2035 | return (op_encode_hdr_size + \ | |
2036 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* bctsr_sessid */\ | |
2037 | 2 /* bctsr_dir, use_conn_in_rdma_mode */) * sizeof(__be32); | |
2038 | } | |
2039 | ||
2040 | static inline u32 nfsd4_create_session_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2041 | { | |
2042 | return (op_encode_hdr_size + \ | |
2043 | XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + /* sessionid */\ | |
2044 | 2 + /* csr_sequence, csr_flags */\ | |
2045 | op_encode_channel_attrs_maxsz + \ | |
2046 | op_encode_channel_attrs_maxsz) * sizeof(__be32); | |
2047 | } | |
2048 | ||
29ae7f9d AS |
2049 | static inline u32 nfsd4_copy_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2050 | { | |
2051 | return (op_encode_hdr_size + | |
2052 | 1 /* wr_callback */ + | |
2053 | op_encode_stateid_maxsz /* wr_callback */ + | |
2054 | 2 /* wr_count */ + | |
2055 | 1 /* wr_committed */ + | |
2056 | op_encode_verifier_maxsz + | |
2057 | 1 /* cr_consecutive */ + | |
2058 | 1 /* cr_synchronous */) * sizeof(__be32); | |
2059 | } | |
2060 | ||
9cf514cc | 2061 | #ifdef CONFIG_NFSD_PNFS |
2282cd2c KM |
2062 | static inline u32 nfsd4_getdeviceinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2063 | { | |
2064 | u32 maxcount = 0, rlen = 0; | |
2065 | ||
2066 | maxcount = svc_max_payload(rqstp); | |
2067 | rlen = min(op->u.getdeviceinfo.gd_maxcount, maxcount); | |
2068 | ||
2069 | return (op_encode_hdr_size + | |
2070 | 1 /* gd_layout_type*/ + | |
2071 | XDR_QUADLEN(rlen) + | |
2072 | 2 /* gd_notify_types */) * sizeof(__be32); | |
2073 | } | |
2074 | ||
9cf514cc CH |
2075 | /* |
2076 | * At this stage we don't really know what layout driver will handle the request, | |
2077 | * so we need to define an arbitrary upper bound here. | |
2078 | */ | |
2079 | #define MAX_LAYOUT_SIZE 128 | |
2080 | static inline u32 nfsd4_layoutget_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2081 | { | |
2082 | return (op_encode_hdr_size + | |
2083 | 1 /* logr_return_on_close */ + | |
2084 | op_encode_stateid_maxsz + | |
2085 | 1 /* nr of layouts */ + | |
2086 | MAX_LAYOUT_SIZE) * sizeof(__be32); | |
2087 | } | |
2088 | ||
2089 | static inline u32 nfsd4_layoutcommit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2090 | { | |
2091 | return (op_encode_hdr_size + | |
2092 | 1 /* locr_newsize */ + | |
2093 | 2 /* ns_size */) * sizeof(__be32); | |
2094 | } | |
2095 | ||
2096 | static inline u32 nfsd4_layoutreturn_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2097 | { | |
2098 | return (op_encode_hdr_size + | |
2099 | 1 /* lrs_stateid */ + | |
2100 | op_encode_stateid_maxsz) * sizeof(__be32); | |
2101 | } | |
2102 | #endif /* CONFIG_NFSD_PNFS */ | |
2103 | ||
2282cd2c KM |
2104 | |
2105 | static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) | |
2106 | { | |
2107 | return (op_encode_hdr_size + 3) * sizeof(__be32); | |
2108 | } | |
2109 | ||
bb2a8b0c | 2110 | static const struct nfsd4_operation nfsd4_ops[] = { |
b591480b | 2111 | [OP_ACCESS] = { |
eb69853d | 2112 | .op_func = nfsd4_access, |
b001a1b6 | 2113 | .op_name = "OP_ACCESS", |
1c122638 | 2114 | .op_rsize_bop = nfsd4_access_rsize, |
b591480b BF |
2115 | }, |
2116 | [OP_CLOSE] = { | |
eb69853d | 2117 | .op_func = nfsd4_close, |
58e7b33a | 2118 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2119 | .op_name = "OP_CLOSE", |
1c122638 | 2120 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
57832e7b | 2121 | .op_get_currentstateid = nfsd4_get_closestateid, |
b60e9859 | 2122 | .op_set_currentstateid = nfsd4_set_closestateid, |
b591480b BF |
2123 | }, |
2124 | [OP_COMMIT] = { | |
eb69853d | 2125 | .op_func = nfsd4_commit, |
58e7b33a | 2126 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2127 | .op_name = "OP_COMMIT", |
1c122638 | 2128 | .op_rsize_bop = nfsd4_commit_rsize, |
b591480b BF |
2129 | }, |
2130 | [OP_CREATE] = { | |
eb69853d | 2131 | .op_func = nfsd4_create, |
d1471053 | 2132 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID, |
b001a1b6 | 2133 | .op_name = "OP_CREATE", |
1c122638 | 2134 | .op_rsize_bop = nfsd4_create_rsize, |
b591480b BF |
2135 | }, |
2136 | [OP_DELEGRETURN] = { | |
eb69853d | 2137 | .op_func = nfsd4_delegreturn, |
58e7b33a | 2138 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2139 | .op_name = "OP_DELEGRETURN", |
58e7b33a | 2140 | .op_rsize_bop = nfsd4_only_status_rsize, |
57832e7b | 2141 | .op_get_currentstateid = nfsd4_get_delegreturnstateid, |
b591480b BF |
2142 | }, |
2143 | [OP_GETATTR] = { | |
eb69853d | 2144 | .op_func = nfsd4_getattr, |
eeac294e | 2145 | .op_flags = ALLOWED_ON_ABSENT_FS, |
b86cef60 | 2146 | .op_rsize_bop = nfsd4_getattr_rsize, |
b001a1b6 | 2147 | .op_name = "OP_GETATTR", |
b591480b BF |
2148 | }, |
2149 | [OP_GETFH] = { | |
eb69853d | 2150 | .op_func = nfsd4_getfh, |
b001a1b6 | 2151 | .op_name = "OP_GETFH", |
1c122638 | 2152 | .op_rsize_bop = nfsd4_getfh_rsize, |
b591480b BF |
2153 | }, |
2154 | [OP_LINK] = { | |
eb69853d | 2155 | .op_func = nfsd4_link, |
c856694e BF |
2156 | .op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING |
2157 | | OP_CACHEME, | |
b001a1b6 | 2158 | .op_name = "OP_LINK", |
1c122638 | 2159 | .op_rsize_bop = nfsd4_link_rsize, |
b591480b BF |
2160 | }, |
2161 | [OP_LOCK] = { | |
eb69853d | 2162 | .op_func = nfsd4_lock, |
58e7b33a | 2163 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2164 | .op_name = "OP_LOCK", |
1c122638 | 2165 | .op_rsize_bop = nfsd4_lock_rsize, |
b60e9859 | 2166 | .op_set_currentstateid = nfsd4_set_lockstateid, |
b591480b BF |
2167 | }, |
2168 | [OP_LOCKT] = { | |
eb69853d | 2169 | .op_func = nfsd4_lockt, |
b001a1b6 | 2170 | .op_name = "OP_LOCKT", |
1c122638 | 2171 | .op_rsize_bop = nfsd4_lock_rsize, |
b591480b BF |
2172 | }, |
2173 | [OP_LOCKU] = { | |
eb69853d | 2174 | .op_func = nfsd4_locku, |
58e7b33a | 2175 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2176 | .op_name = "OP_LOCKU", |
1c122638 | 2177 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
57832e7b | 2178 | .op_get_currentstateid = nfsd4_get_lockustateid, |
b591480b BF |
2179 | }, |
2180 | [OP_LOOKUP] = { | |
eb69853d | 2181 | .op_func = nfsd4_lookup, |
d1471053 | 2182 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 2183 | .op_name = "OP_LOOKUP", |
1c122638 | 2184 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2185 | }, |
2186 | [OP_LOOKUPP] = { | |
eb69853d | 2187 | .op_func = nfsd4_lookupp, |
d1471053 | 2188 | .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, |
b001a1b6 | 2189 | .op_name = "OP_LOOKUPP", |
1c122638 | 2190 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2191 | }, |
2192 | [OP_NVERIFY] = { | |
eb69853d | 2193 | .op_func = nfsd4_nverify, |
b001a1b6 | 2194 | .op_name = "OP_NVERIFY", |
1c122638 | 2195 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2196 | }, |
2197 | [OP_OPEN] = { | |
eb69853d | 2198 | .op_func = nfsd4_open, |
58e7b33a | 2199 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 2200 | .op_name = "OP_OPEN", |
1c122638 | 2201 | .op_rsize_bop = nfsd4_open_rsize, |
b60e9859 | 2202 | .op_set_currentstateid = nfsd4_set_openstateid, |
b591480b BF |
2203 | }, |
2204 | [OP_OPEN_CONFIRM] = { | |
eb69853d | 2205 | .op_func = nfsd4_open_confirm, |
58e7b33a | 2206 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2207 | .op_name = "OP_OPEN_CONFIRM", |
1c122638 | 2208 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
b591480b BF |
2209 | }, |
2210 | [OP_OPEN_DOWNGRADE] = { | |
eb69853d | 2211 | .op_func = nfsd4_open_downgrade, |
58e7b33a | 2212 | .op_flags = OP_MODIFIES_SOMETHING, |
b001a1b6 | 2213 | .op_name = "OP_OPEN_DOWNGRADE", |
1c122638 | 2214 | .op_rsize_bop = nfsd4_status_stateid_rsize, |
57832e7b | 2215 | .op_get_currentstateid = nfsd4_get_opendowngradestateid, |
b60e9859 | 2216 | .op_set_currentstateid = nfsd4_set_opendowngradestateid, |
b591480b BF |
2217 | }, |
2218 | [OP_PUTFH] = { | |
eb69853d | 2219 | .op_func = nfsd4_putfh, |
68d93184 | 2220 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
5b648699 | 2221 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
b001a1b6 | 2222 | .op_name = "OP_PUTFH", |
1c122638 | 2223 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b | 2224 | }, |
eeac294e | 2225 | [OP_PUTPUBFH] = { |
eb69853d | 2226 | .op_func = nfsd4_putrootfh, |
68d93184 | 2227 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
5b648699 | 2228 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
b001a1b6 | 2229 | .op_name = "OP_PUTPUBFH", |
1c122638 | 2230 | .op_rsize_bop = nfsd4_only_status_rsize, |
eeac294e | 2231 | }, |
b591480b | 2232 | [OP_PUTROOTFH] = { |
eb69853d | 2233 | .op_func = nfsd4_putrootfh, |
68d93184 | 2234 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
5b648699 | 2235 | | OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID, |
b001a1b6 | 2236 | .op_name = "OP_PUTROOTFH", |
1c122638 | 2237 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2238 | }, |
2239 | [OP_READ] = { | |
eb69853d | 2240 | .op_func = nfsd4_read, |
b001a1b6 | 2241 | .op_name = "OP_READ", |
1c122638 | 2242 | .op_rsize_bop = nfsd4_read_rsize, |
57832e7b | 2243 | .op_get_currentstateid = nfsd4_get_readstateid, |
b591480b BF |
2244 | }, |
2245 | [OP_READDIR] = { | |
eb69853d | 2246 | .op_func = nfsd4_readdir, |
b001a1b6 | 2247 | .op_name = "OP_READDIR", |
1c122638 | 2248 | .op_rsize_bop = nfsd4_readdir_rsize, |
b591480b BF |
2249 | }, |
2250 | [OP_READLINK] = { | |
eb69853d | 2251 | .op_func = nfsd4_readlink, |
b001a1b6 | 2252 | .op_name = "OP_READLINK", |
1c122638 | 2253 | .op_rsize_bop = nfsd4_readlink_rsize, |
b591480b BF |
2254 | }, |
2255 | [OP_REMOVE] = { | |
eb69853d | 2256 | .op_func = nfsd4_remove, |
c856694e | 2257 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
b001a1b6 | 2258 | .op_name = "OP_REMOVE", |
1c122638 | 2259 | .op_rsize_bop = nfsd4_remove_rsize, |
b591480b BF |
2260 | }, |
2261 | [OP_RENAME] = { | |
eb69853d | 2262 | .op_func = nfsd4_rename, |
c856694e | 2263 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
58e7b33a | 2264 | .op_name = "OP_RENAME", |
1c122638 | 2265 | .op_rsize_bop = nfsd4_rename_rsize, |
b591480b BF |
2266 | }, |
2267 | [OP_RENEW] = { | |
eb69853d | 2268 | .op_func = nfsd4_renew, |
58e7b33a MJ |
2269 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
2270 | | OP_MODIFIES_SOMETHING, | |
b001a1b6 | 2271 | .op_name = "OP_RENEW", |
1c122638 | 2272 | .op_rsize_bop = nfsd4_only_status_rsize, |
58e7b33a | 2273 | |
b591480b BF |
2274 | }, |
2275 | [OP_RESTOREFH] = { | |
eb69853d | 2276 | .op_func = nfsd4_restorefh, |
68d93184 | 2277 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
58e7b33a | 2278 | | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING, |
b001a1b6 | 2279 | .op_name = "OP_RESTOREFH", |
1c122638 | 2280 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b BF |
2281 | }, |
2282 | [OP_SAVEFH] = { | |
eb69853d | 2283 | .op_func = nfsd4_savefh, |
58e7b33a | 2284 | .op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING, |
b001a1b6 | 2285 | .op_name = "OP_SAVEFH", |
1c122638 | 2286 | .op_rsize_bop = nfsd4_only_status_rsize, |
b591480b | 2287 | }, |
dcb488a3 | 2288 | [OP_SECINFO] = { |
eb69853d | 2289 | .op_func = nfsd4_secinfo, |
68d93184 | 2290 | .op_flags = OP_HANDLES_WRONGSEC, |
b001a1b6 | 2291 | .op_name = "OP_SECINFO", |
1c122638 | 2292 | .op_rsize_bop = nfsd4_secinfo_rsize, |
dcb488a3 | 2293 | }, |
b591480b | 2294 | [OP_SETATTR] = { |
eb69853d | 2295 | .op_func = nfsd4_setattr, |
b001a1b6 | 2296 | .op_name = "OP_SETATTR", |
c856694e | 2297 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
1c122638 | 2298 | .op_rsize_bop = nfsd4_setattr_rsize, |
57832e7b | 2299 | .op_get_currentstateid = nfsd4_get_setattrstateid, |
b591480b BF |
2300 | }, |
2301 | [OP_SETCLIENTID] = { | |
eb69853d | 2302 | .op_func = nfsd4_setclientid, |
58e7b33a | 2303 | .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS |
c856694e | 2304 | | OP_MODIFIES_SOMETHING | OP_CACHEME, |
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, |
68d93184 | 2391 | .op_flags = OP_HANDLES_WRONGSEC, |
04f4ad16 | 2392 | .op_name = "OP_SECINFO_NO_NAME", |
1c122638 | 2393 | .op_rsize_bop = nfsd4_secinfo_rsize, |
04f4ad16 | 2394 | }, |
17456804 | 2395 | [OP_TEST_STATEID] = { |
eb69853d | 2396 | .op_func = nfsd4_test_stateid, |
17456804 BS |
2397 | .op_flags = ALLOWED_WITHOUT_FH, |
2398 | .op_name = "OP_TEST_STATEID", | |
1c122638 | 2399 | .op_rsize_bop = nfsd4_test_stateid_rsize, |
17456804 | 2400 | }, |
e1ca12df | 2401 | [OP_FREE_STATEID] = { |
eb69853d | 2402 | .op_func = nfsd4_free_stateid, |
58e7b33a | 2403 | .op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING, |
e1ca12df | 2404 | .op_name = "OP_FREE_STATEID", |
57832e7b | 2405 | .op_get_currentstateid = nfsd4_get_freestateid, |
1c122638 | 2406 | .op_rsize_bop = nfsd4_only_status_rsize, |
e1ca12df | 2407 | }, |
9cf514cc CH |
2408 | #ifdef CONFIG_NFSD_PNFS |
2409 | [OP_GETDEVICEINFO] = { | |
eb69853d | 2410 | .op_func = nfsd4_getdeviceinfo, |
9cf514cc CH |
2411 | .op_flags = ALLOWED_WITHOUT_FH, |
2412 | .op_name = "OP_GETDEVICEINFO", | |
1c122638 | 2413 | .op_rsize_bop = nfsd4_getdeviceinfo_rsize, |
9cf514cc CH |
2414 | }, |
2415 | [OP_LAYOUTGET] = { | |
eb69853d | 2416 | .op_func = nfsd4_layoutget, |
9cf514cc CH |
2417 | .op_flags = OP_MODIFIES_SOMETHING, |
2418 | .op_name = "OP_LAYOUTGET", | |
1c122638 | 2419 | .op_rsize_bop = nfsd4_layoutget_rsize, |
9cf514cc CH |
2420 | }, |
2421 | [OP_LAYOUTCOMMIT] = { | |
eb69853d | 2422 | .op_func = nfsd4_layoutcommit, |
9cf514cc CH |
2423 | .op_flags = OP_MODIFIES_SOMETHING, |
2424 | .op_name = "OP_LAYOUTCOMMIT", | |
1c122638 | 2425 | .op_rsize_bop = nfsd4_layoutcommit_rsize, |
9cf514cc CH |
2426 | }, |
2427 | [OP_LAYOUTRETURN] = { | |
eb69853d | 2428 | .op_func = nfsd4_layoutreturn, |
9cf514cc CH |
2429 | .op_flags = OP_MODIFIES_SOMETHING, |
2430 | .op_name = "OP_LAYOUTRETURN", | |
1c122638 | 2431 | .op_rsize_bop = nfsd4_layoutreturn_rsize, |
9cf514cc CH |
2432 | }, |
2433 | #endif /* CONFIG_NFSD_PNFS */ | |
24bab491 AS |
2434 | |
2435 | /* NFSv4.2 operations */ | |
95d871f0 | 2436 | [OP_ALLOCATE] = { |
eb69853d | 2437 | .op_func = nfsd4_allocate, |
95d871f0 AS |
2438 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2439 | .op_name = "OP_ALLOCATE", | |
1c122638 | 2440 | .op_rsize_bop = nfsd4_only_status_rsize, |
95d871f0 | 2441 | }, |
b0cb9085 | 2442 | [OP_DEALLOCATE] = { |
eb69853d | 2443 | .op_func = nfsd4_deallocate, |
b0cb9085 AS |
2444 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2445 | .op_name = "OP_DEALLOCATE", | |
1c122638 | 2446 | .op_rsize_bop = nfsd4_only_status_rsize, |
b0cb9085 | 2447 | }, |
ffa0160a | 2448 | [OP_CLONE] = { |
eb69853d | 2449 | .op_func = nfsd4_clone, |
ffa0160a CH |
2450 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2451 | .op_name = "OP_CLONE", | |
1c122638 | 2452 | .op_rsize_bop = nfsd4_only_status_rsize, |
ffa0160a | 2453 | }, |
29ae7f9d | 2454 | [OP_COPY] = { |
eb69853d | 2455 | .op_func = nfsd4_copy, |
29ae7f9d AS |
2456 | .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME, |
2457 | .op_name = "OP_COPY", | |
1c122638 | 2458 | .op_rsize_bop = nfsd4_copy_rsize, |
29ae7f9d | 2459 | }, |
24bab491 | 2460 | [OP_SEEK] = { |
eb69853d | 2461 | .op_func = nfsd4_seek, |
24bab491 | 2462 | .op_name = "OP_SEEK", |
1c122638 | 2463 | .op_rsize_bop = nfsd4_seek_rsize, |
24bab491 | 2464 | }, |
b591480b BF |
2465 | }; |
2466 | ||
ed941643 AE |
2467 | /** |
2468 | * nfsd4_spo_must_allow - Determine if the compound op contains an | |
2469 | * operation that is allowed to be sent with machine credentials | |
2470 | * | |
2471 | * @rqstp: a pointer to the struct svc_rqst | |
2472 | * | |
2473 | * Checks to see if the compound contains a spo_must_allow op | |
2474 | * and confirms that it was sent with the proper machine creds. | |
2475 | */ | |
2476 | ||
2477 | bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) | |
2478 | { | |
2479 | struct nfsd4_compoundres *resp = rqstp->rq_resp; | |
2480 | struct nfsd4_compoundargs *argp = rqstp->rq_argp; | |
2481 | struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; | |
2482 | struct nfsd4_compound_state *cstate = &resp->cstate; | |
2483 | struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow; | |
2484 | u32 opiter; | |
2485 | ||
2486 | if (!cstate->minorversion) | |
2487 | return false; | |
2488 | ||
2489 | if (cstate->spo_must_allowed == true) | |
2490 | return true; | |
2491 | ||
2492 | opiter = resp->opcnt; | |
2493 | while (opiter < argp->opcnt) { | |
2494 | this = &argp->ops[opiter++]; | |
2495 | if (test_bit(this->opnum, allow->u.longs) && | |
2496 | cstate->clp->cl_mach_cred && | |
2497 | nfsd4_mach_creds_match(cstate->clp, rqstp)) { | |
2498 | cstate->spo_must_allowed = true; | |
2499 | return true; | |
2500 | } | |
2501 | } | |
2502 | cstate->spo_must_allowed = false; | |
2503 | return false; | |
2504 | } | |
2505 | ||
4f0cefbf BF |
2506 | int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) |
2507 | { | |
05b7278d | 2508 | if (op->opnum == OP_ILLEGAL || op->status == nfserr_notsupp) |
4f0cefbf | 2509 | return op_encode_hdr_size * sizeof(__be32); |
2282cd2c KM |
2510 | |
2511 | BUG_ON(OPDESC(op)->op_rsize_bop == NULL); | |
2512 | return OPDESC(op)->op_rsize_bop(rqstp, op); | |
4f0cefbf BF |
2513 | } |
2514 | ||
07d1f802 BF |
2515 | void warn_on_nonidempotent_op(struct nfsd4_op *op) |
2516 | { | |
2517 | if (OPDESC(op)->op_flags & OP_MODIFIES_SOMETHING) { | |
2518 | pr_err("unable to encode reply to nonidempotent op %d (%s)\n", | |
2519 | op->opnum, nfsd4_op_name(op->opnum)); | |
2520 | WARN_ON_ONCE(1); | |
2521 | } | |
2522 | } | |
2523 | ||
f1c7f79b | 2524 | static const char *nfsd4_op_name(unsigned opnum) |
b001a1b6 BH |
2525 | { |
2526 | if (opnum < ARRAY_SIZE(nfsd4_ops)) | |
2527 | return nfsd4_ops[opnum].op_name; | |
2528 | return "unknown_operation"; | |
2529 | } | |
2530 | ||
1da177e4 | 2531 | #define nfsd4_voidres nfsd4_voidargs |
1da177e4 LT |
2532 | struct nfsd4_voidargs { int dummy; }; |
2533 | ||
860bda29 | 2534 | static const struct svc_procedure nfsd_procedures4[2] = { |
0a93a47f | 2535 | [NFSPROC4_NULL] = { |
f7235b6b | 2536 | .pc_func = nfsd4_proc_null, |
63f8de37 | 2537 | .pc_encode = nfs4svc_encode_voidres, |
0a93a47f YZ |
2538 | .pc_argsize = sizeof(struct nfsd4_voidargs), |
2539 | .pc_ressize = sizeof(struct nfsd4_voidres), | |
2540 | .pc_cachetype = RC_NOCACHE, | |
2541 | .pc_xdrressize = 1, | |
2542 | }, | |
2543 | [NFSPROC4_COMPOUND] = { | |
f7235b6b | 2544 | .pc_func = nfsd4_proc_compound, |
026fec7e | 2545 | .pc_decode = nfs4svc_decode_compoundargs, |
63f8de37 | 2546 | .pc_encode = nfs4svc_encode_compoundres, |
0a93a47f YZ |
2547 | .pc_argsize = sizeof(struct nfsd4_compoundargs), |
2548 | .pc_ressize = sizeof(struct nfsd4_compoundres), | |
3e98abff | 2549 | .pc_release = nfsd4_release_compoundargs, |
0a93a47f YZ |
2550 | .pc_cachetype = RC_NOCACHE, |
2551 | .pc_xdrressize = NFSD_BUFSIZE/4, | |
2552 | }, | |
1da177e4 LT |
2553 | }; |
2554 | ||
7fd38af9 | 2555 | static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures4)]; |
e9679189 | 2556 | const struct svc_version nfsd_version4 = { |
5283b03e JL |
2557 | .vs_vers = 4, |
2558 | .vs_nproc = 2, | |
2559 | .vs_proc = nfsd_procedures4, | |
7fd38af9 | 2560 | .vs_count = nfsd_count3, |
5283b03e JL |
2561 | .vs_dispatch = nfsd_dispatch, |
2562 | .vs_xdrsize = NFS4_SVC_XDRSIZE, | |
2563 | .vs_rpcb_optnl = true, | |
2564 | .vs_need_cong_ctrl = true, | |
1da177e4 LT |
2565 | }; |
2566 | ||
2567 | /* | |
2568 | * Local variables: | |
2569 | * c-basic-offset: 8 | |
2570 | * End: | |
2571 | */ |