2 * Server-side procedures for NFSv4.
4 * Copyright (c) 2002 The Regents of the University of Michigan.
7 * Kendrick Smith <kmsmith@umich.edu>
8 * Andy Adamson <andros@umich.edu>
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
35 #include <linux/file.h>
36 #include <linux/slab.h>
42 #define NFSDDBG_FACILITY NFSDDBG_PROC
44 static u32 nfsd_attrmask
[] = {
45 NFSD_WRITEABLE_ATTRS_WORD0
,
46 NFSD_WRITEABLE_ATTRS_WORD1
,
47 NFSD_WRITEABLE_ATTRS_WORD2
50 static u32 nfsd41_ex_attrmask
[] = {
51 NFSD_SUPPATTR_EXCLCREAT_WORD0
,
52 NFSD_SUPPATTR_EXCLCREAT_WORD1
,
53 NFSD_SUPPATTR_EXCLCREAT_WORD2
57 check_attr_support(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
58 u32
*bmval
, u32
*writable
)
60 struct dentry
*dentry
= cstate
->current_fh
.fh_dentry
;
63 * Check about attributes are supported by the NFSv4 server or not.
64 * According to spec, unsupported attributes return ERR_ATTRNOTSUPP.
66 if ((bmval
[0] & ~nfsd_suppattrs0(cstate
->minorversion
)) ||
67 (bmval
[1] & ~nfsd_suppattrs1(cstate
->minorversion
)) ||
68 (bmval
[2] & ~nfsd_suppattrs2(cstate
->minorversion
)))
69 return nfserr_attrnotsupp
;
72 * Check FATTR4_WORD0_ACL can be supported
73 * in current environment or not.
75 if (bmval
[0] & FATTR4_WORD0_ACL
) {
76 if (!IS_POSIXACL(dentry
->d_inode
))
77 return nfserr_attrnotsupp
;
81 * According to spec, read-only attributes return ERR_INVAL.
84 if ((bmval
[0] & ~writable
[0]) || (bmval
[1] & ~writable
[1]) ||
85 (bmval
[2] & ~writable
[2]))
93 nfsd4_check_open_attributes(struct svc_rqst
*rqstp
,
94 struct nfsd4_compound_state
*cstate
, struct nfsd4_open
*open
)
96 __be32 status
= nfs_ok
;
98 if (open
->op_create
== NFS4_OPEN_CREATE
) {
99 if (open
->op_createmode
== NFS4_CREATE_UNCHECKED
100 || open
->op_createmode
== NFS4_CREATE_GUARDED
)
101 status
= check_attr_support(rqstp
, cstate
,
102 open
->op_bmval
, nfsd_attrmask
);
103 else if (open
->op_createmode
== NFS4_CREATE_EXCLUSIVE4_1
)
104 status
= check_attr_support(rqstp
, cstate
,
105 open
->op_bmval
, nfsd41_ex_attrmask
);
112 is_create_with_attrs(struct nfsd4_open
*open
)
114 return open
->op_create
== NFS4_OPEN_CREATE
115 && (open
->op_createmode
== NFS4_CREATE_UNCHECKED
116 || open
->op_createmode
== NFS4_CREATE_GUARDED
117 || open
->op_createmode
== NFS4_CREATE_EXCLUSIVE4_1
);
121 * if error occurs when setting the acl, just clear the acl bit
122 * in the returned attr bitmap.
125 do_set_nfs4_acl(struct svc_rqst
*rqstp
, struct svc_fh
*fhp
,
126 struct nfs4_acl
*acl
, u32
*bmval
)
130 status
= nfsd4_set_nfs4_acl(rqstp
, fhp
, acl
);
133 * We should probably fail the whole open at this point,
134 * but we've already created the file, so it's too late;
135 * So this seems the least of evils:
137 bmval
[0] &= ~FATTR4_WORD0_ACL
;
141 fh_dup2(struct svc_fh
*dst
, struct svc_fh
*src
)
144 dget(src
->fh_dentry
);
146 cache_get(&src
->fh_export
->h
);
151 do_open_permission(struct svc_rqst
*rqstp
, struct svc_fh
*current_fh
, struct nfsd4_open
*open
, int accmode
)
155 if (open
->op_truncate
&&
156 !(open
->op_share_access
& NFS4_SHARE_ACCESS_WRITE
))
159 if (open
->op_share_access
& NFS4_SHARE_ACCESS_READ
)
160 accmode
|= NFSD_MAY_READ
;
161 if (open
->op_share_access
& NFS4_SHARE_ACCESS_WRITE
)
162 accmode
|= (NFSD_MAY_WRITE
| NFSD_MAY_TRUNC
);
163 if (open
->op_share_deny
& NFS4_SHARE_DENY_READ
)
164 accmode
|= NFSD_MAY_WRITE
;
166 status
= fh_verify(rqstp
, current_fh
, S_IFREG
, accmode
);
171 static __be32
nfsd_check_obj_isreg(struct svc_fh
*fh
)
173 umode_t mode
= fh
->fh_dentry
->d_inode
->i_mode
;
180 * Using err_symlink as our catch-all case may look odd; but
181 * there's no other obvious error for this case in 4.0, and we
182 * happen to know that it will cause the linux v4 client to do
183 * the right thing on attempts to open something other than a
186 return nfserr_symlink
;
190 do_open_lookup(struct svc_rqst
*rqstp
, struct svc_fh
*current_fh
, struct nfsd4_open
*open
)
196 fh_init(&resfh
, NFS4_FHSIZE
);
197 open
->op_truncate
= 0;
199 if (open
->op_create
) {
200 /* FIXME: check session persistence and pnfs flags.
201 * The nfsv4.1 spec requires the following semantics:
203 * Persistent | pNFS | Server REQUIRED | Client Allowed
204 * Reply Cache | server | |
205 * -------------+--------+-----------------+--------------------
206 * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1
208 * | | and EXCLUSIVE4 | or EXCLUSIVE4
210 * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1
211 * yes | no | GUARDED4 | GUARDED4
212 * yes | yes | GUARDED4 | GUARDED4
216 * Note: create modes (UNCHECKED,GUARDED...) are the same
217 * in NFSv4 as in v3 except EXCLUSIVE4_1.
219 status
= do_nfsd_create(rqstp
, current_fh
, open
->op_fname
.data
,
220 open
->op_fname
.len
, &open
->op_iattr
,
221 &resfh
, open
->op_createmode
,
222 (u32
*)open
->op_verf
.data
,
223 &open
->op_truncate
, &created
);
226 * Following rfc 3530 14.2.16, use the returned bitmask
227 * to indicate which attributes we used to store the
230 if (open
->op_createmode
== NFS4_CREATE_EXCLUSIVE
&& status
== 0)
231 open
->op_bmval
[1] = (FATTR4_WORD1_TIME_ACCESS
|
232 FATTR4_WORD1_TIME_MODIFY
);
234 status
= nfsd_lookup(rqstp
, current_fh
,
235 open
->op_fname
.data
, open
->op_fname
.len
, &resfh
);
236 fh_unlock(current_fh
);
239 status
= nfsd_check_obj_isreg(&resfh
);
244 if (is_create_with_attrs(open
) && open
->op_acl
!= NULL
)
245 do_set_nfs4_acl(rqstp
, &resfh
, open
->op_acl
, open
->op_bmval
);
247 set_change_info(&open
->op_cinfo
, current_fh
);
248 fh_dup2(current_fh
, &resfh
);
250 /* set reply cache */
251 fh_copy_shallow(&open
->op_stateowner
->so_replay
.rp_openfh
,
254 status
= do_open_permission(rqstp
, current_fh
, open
,
263 do_open_fhandle(struct svc_rqst
*rqstp
, struct svc_fh
*current_fh
, struct nfsd4_open
*open
)
267 /* Only reclaims from previously confirmed clients are valid */
268 if ((status
= nfs4_check_open_reclaim(&open
->op_clientid
)))
271 /* We don't know the target directory, and therefore can not
272 * set the change info
275 memset(&open
->op_cinfo
, 0, sizeof(struct nfsd4_change_info
));
277 /* set replay cache */
278 fh_copy_shallow(&open
->op_stateowner
->so_replay
.rp_openfh
,
279 ¤t_fh
->fh_handle
);
281 open
->op_truncate
= (open
->op_iattr
.ia_valid
& ATTR_SIZE
) &&
282 (open
->op_iattr
.ia_size
== 0);
284 status
= do_open_permission(rqstp
, current_fh
, open
,
285 NFSD_MAY_OWNER_OVERRIDE
);
291 copy_clientid(clientid_t
*clid
, struct nfsd4_session
*session
)
293 struct nfsd4_sessionid
*sid
=
294 (struct nfsd4_sessionid
*)session
->se_sessionid
.data
;
296 clid
->cl_boot
= sid
->clientid
.cl_boot
;
297 clid
->cl_id
= sid
->clientid
.cl_id
;
301 nfsd4_open(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
302 struct nfsd4_open
*open
)
305 struct nfsd4_compoundres
*resp
;
307 dprintk("NFSD: nfsd4_open filename %.*s op_stateowner %p\n",
308 (int)open
->op_fname
.len
, open
->op_fname
.data
,
309 open
->op_stateowner
);
311 /* This check required by spec. */
312 if (open
->op_create
&& open
->op_claim_type
!= NFS4_OPEN_CLAIM_NULL
)
317 * Before RECLAIM_COMPLETE done, server should deny new lock
319 if (nfsd4_has_session(cstate
) &&
320 !cstate
->session
->se_client
->cl_firststate
&&
321 open
->op_claim_type
!= NFS4_OPEN_CLAIM_PREVIOUS
)
324 if (nfsd4_has_session(cstate
))
325 copy_clientid(&open
->op_clientid
, cstate
->session
);
329 /* check seqid for replay. set nfs4_owner */
330 resp
= rqstp
->rq_resp
;
331 status
= nfsd4_process_open1(&resp
->cstate
, open
);
332 if (status
== nfserr_replay_me
) {
333 struct nfs4_replay
*rp
= &open
->op_stateowner
->so_replay
;
334 fh_put(&cstate
->current_fh
);
335 fh_copy_shallow(&cstate
->current_fh
.fh_handle
,
337 status
= fh_verify(rqstp
, &cstate
->current_fh
, 0, NFSD_MAY_NOP
);
339 dprintk("nfsd4_open: replay failed"
340 " restoring previous filehandle\n");
342 status
= nfserr_replay_me
;
347 status
= nfsd4_check_open_attributes(rqstp
, cstate
, open
);
351 /* Openowner is now set, so sequence id will get bumped. Now we need
352 * these checks before we do any creates: */
353 status
= nfserr_grace
;
354 if (locks_in_grace() && open
->op_claim_type
!= NFS4_OPEN_CLAIM_PREVIOUS
)
356 status
= nfserr_no_grace
;
357 if (!locks_in_grace() && open
->op_claim_type
== NFS4_OPEN_CLAIM_PREVIOUS
)
360 switch (open
->op_claim_type
) {
361 case NFS4_OPEN_CLAIM_DELEGATE_CUR
:
362 case NFS4_OPEN_CLAIM_NULL
:
364 * (1) set CURRENT_FH to the file being opened,
365 * creating it if necessary, (2) set open->op_cinfo,
366 * (3) set open->op_truncate if the file is to be
367 * truncated after opening, (4) do permission checking.
369 status
= do_open_lookup(rqstp
, &cstate
->current_fh
,
374 case NFS4_OPEN_CLAIM_PREVIOUS
:
375 open
->op_stateowner
->so_confirmed
= 1;
377 * The CURRENT_FH is already set to the file being
378 * opened. (1) set open->op_cinfo, (2) set
379 * open->op_truncate if the file is to be truncated
380 * after opening, (3) do permission checking.
382 status
= do_open_fhandle(rqstp
, &cstate
->current_fh
,
387 case NFS4_OPEN_CLAIM_DELEGATE_PREV
:
388 open
->op_stateowner
->so_confirmed
= 1;
389 dprintk("NFSD: unsupported OPEN claim type %d\n",
390 open
->op_claim_type
);
391 status
= nfserr_notsupp
;
394 dprintk("NFSD: Invalid OPEN claim type %d\n",
395 open
->op_claim_type
);
396 status
= nfserr_inval
;
400 * nfsd4_process_open2() does the actual opening of the file. If
401 * successful, it (1) truncates the file if open->op_truncate was
402 * set, (2) sets open->op_stateid, (3) sets open->op_delegation.
404 status
= nfsd4_process_open2(rqstp
, &cstate
->current_fh
, open
);
406 if (open
->op_stateowner
) {
407 nfs4_get_stateowner(open
->op_stateowner
);
408 cstate
->replay_owner
= open
->op_stateowner
;
415 * filehandle-manipulating ops.
418 nfsd4_getfh(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
419 struct svc_fh
**getfh
)
421 if (!cstate
->current_fh
.fh_dentry
)
422 return nfserr_nofilehandle
;
424 *getfh
= &cstate
->current_fh
;
429 nfsd4_putfh(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
430 struct nfsd4_putfh
*putfh
)
432 fh_put(&cstate
->current_fh
);
433 cstate
->current_fh
.fh_handle
.fh_size
= putfh
->pf_fhlen
;
434 memcpy(&cstate
->current_fh
.fh_handle
.fh_base
, putfh
->pf_fhval
,
436 return fh_verify(rqstp
, &cstate
->current_fh
, 0, NFSD_MAY_BYPASS_GSS
);
440 nfsd4_putrootfh(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
445 fh_put(&cstate
->current_fh
);
446 status
= exp_pseudoroot(rqstp
, &cstate
->current_fh
);
451 nfsd4_restorefh(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
454 if (!cstate
->save_fh
.fh_dentry
)
455 return nfserr_restorefh
;
457 fh_dup2(&cstate
->current_fh
, &cstate
->save_fh
);
462 nfsd4_savefh(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
465 if (!cstate
->current_fh
.fh_dentry
)
466 return nfserr_nofilehandle
;
468 fh_dup2(&cstate
->save_fh
, &cstate
->current_fh
);
476 nfsd4_access(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
477 struct nfsd4_access
*access
)
479 if (access
->ac_req_access
& ~NFS3_ACCESS_FULL
)
482 access
->ac_resp_access
= access
->ac_req_access
;
483 return nfsd_access(rqstp
, &cstate
->current_fh
, &access
->ac_resp_access
,
484 &access
->ac_supported
);
488 nfsd4_commit(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
489 struct nfsd4_commit
*commit
)
493 u32
*p
= (u32
*)commit
->co_verf
.data
;
494 *p
++ = nfssvc_boot
.tv_sec
;
495 *p
++ = nfssvc_boot
.tv_usec
;
497 status
= nfsd_commit(rqstp
, &cstate
->current_fh
, commit
->co_offset
,
499 if (status
== nfserr_symlink
)
500 status
= nfserr_inval
;
505 nfsd4_create(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
506 struct nfsd4_create
*create
)
512 fh_init(&resfh
, NFS4_FHSIZE
);
514 status
= fh_verify(rqstp
, &cstate
->current_fh
, S_IFDIR
,
516 if (status
== nfserr_symlink
)
517 status
= nfserr_notdir
;
521 status
= check_attr_support(rqstp
, cstate
, create
->cr_bmval
,
526 switch (create
->cr_type
) {
528 /* ugh! we have to null-terminate the linktext, or
529 * vfs_symlink() will choke. it is always safe to
530 * null-terminate by brute force, since at worst we
531 * will overwrite the first byte of the create namelen
532 * in the XDR buffer, which has already been extracted
535 create
->cr_linkname
[create
->cr_linklen
] = 0;
537 status
= nfsd_symlink(rqstp
, &cstate
->current_fh
,
538 create
->cr_name
, create
->cr_namelen
,
539 create
->cr_linkname
, create
->cr_linklen
,
540 &resfh
, &create
->cr_iattr
);
544 rdev
= MKDEV(create
->cr_specdata1
, create
->cr_specdata2
);
545 if (MAJOR(rdev
) != create
->cr_specdata1
||
546 MINOR(rdev
) != create
->cr_specdata2
)
548 status
= nfsd_create(rqstp
, &cstate
->current_fh
,
549 create
->cr_name
, create
->cr_namelen
,
550 &create
->cr_iattr
, S_IFBLK
, rdev
, &resfh
);
554 rdev
= MKDEV(create
->cr_specdata1
, create
->cr_specdata2
);
555 if (MAJOR(rdev
) != create
->cr_specdata1
||
556 MINOR(rdev
) != create
->cr_specdata2
)
558 status
= nfsd_create(rqstp
, &cstate
->current_fh
,
559 create
->cr_name
, create
->cr_namelen
,
560 &create
->cr_iattr
,S_IFCHR
, rdev
, &resfh
);
564 status
= nfsd_create(rqstp
, &cstate
->current_fh
,
565 create
->cr_name
, create
->cr_namelen
,
566 &create
->cr_iattr
, S_IFSOCK
, 0, &resfh
);
570 status
= nfsd_create(rqstp
, &cstate
->current_fh
,
571 create
->cr_name
, create
->cr_namelen
,
572 &create
->cr_iattr
, S_IFIFO
, 0, &resfh
);
576 create
->cr_iattr
.ia_valid
&= ~ATTR_SIZE
;
577 status
= nfsd_create(rqstp
, &cstate
->current_fh
,
578 create
->cr_name
, create
->cr_namelen
,
579 &create
->cr_iattr
, S_IFDIR
, 0, &resfh
);
583 status
= nfserr_badtype
;
589 if (create
->cr_acl
!= NULL
)
590 do_set_nfs4_acl(rqstp
, &resfh
, create
->cr_acl
,
593 fh_unlock(&cstate
->current_fh
);
594 set_change_info(&create
->cr_cinfo
, &cstate
->current_fh
);
595 fh_dup2(&cstate
->current_fh
, &resfh
);
602 nfsd4_getattr(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
603 struct nfsd4_getattr
*getattr
)
607 status
= fh_verify(rqstp
, &cstate
->current_fh
, 0, NFSD_MAY_NOP
);
611 if (getattr
->ga_bmval
[1] & NFSD_WRITEONLY_ATTRS_WORD1
)
614 getattr
->ga_bmval
[0] &= nfsd_suppattrs0(cstate
->minorversion
);
615 getattr
->ga_bmval
[1] &= nfsd_suppattrs1(cstate
->minorversion
);
616 getattr
->ga_bmval
[2] &= nfsd_suppattrs2(cstate
->minorversion
);
618 getattr
->ga_fhp
= &cstate
->current_fh
;
623 nfsd4_link(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
624 struct nfsd4_link
*link
)
626 __be32 status
= nfserr_nofilehandle
;
628 if (!cstate
->save_fh
.fh_dentry
)
630 status
= nfsd_link(rqstp
, &cstate
->current_fh
,
631 link
->li_name
, link
->li_namelen
, &cstate
->save_fh
);
633 set_change_info(&link
->li_cinfo
, &cstate
->current_fh
);
637 static __be32
nfsd4_do_lookupp(struct svc_rqst
*rqstp
, struct svc_fh
*fh
)
639 struct svc_fh tmp_fh
;
642 fh_init(&tmp_fh
, NFS4_FHSIZE
);
643 ret
= exp_pseudoroot(rqstp
, &tmp_fh
);
646 if (tmp_fh
.fh_dentry
== fh
->fh_dentry
) {
651 return nfsd_lookup(rqstp
, fh
, "..", 2, fh
);
655 nfsd4_lookupp(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
658 return nfsd4_do_lookupp(rqstp
, &cstate
->current_fh
);
662 nfsd4_lookup(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
663 struct nfsd4_lookup
*lookup
)
665 return nfsd_lookup(rqstp
, &cstate
->current_fh
,
666 lookup
->lo_name
, lookup
->lo_len
,
667 &cstate
->current_fh
);
671 nfsd4_read(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
672 struct nfsd4_read
*read
)
676 /* no need to check permission - this will be done in nfsd_read() */
678 read
->rd_filp
= NULL
;
679 if (read
->rd_offset
>= OFFSET_MAX
)
684 if ((status
= nfs4_preprocess_stateid_op(cstate
, &read
->rd_stateid
,
685 RD_STATE
, &read
->rd_filp
))) {
686 dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
690 get_file(read
->rd_filp
);
694 read
->rd_rqstp
= rqstp
;
695 read
->rd_fhp
= &cstate
->current_fh
;
700 nfsd4_readdir(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
701 struct nfsd4_readdir
*readdir
)
703 u64 cookie
= readdir
->rd_cookie
;
704 static const nfs4_verifier zeroverf
;
706 /* no need to check permission - this will be done in nfsd_readdir() */
708 if (readdir
->rd_bmval
[1] & NFSD_WRITEONLY_ATTRS_WORD1
)
711 readdir
->rd_bmval
[0] &= nfsd_suppattrs0(cstate
->minorversion
);
712 readdir
->rd_bmval
[1] &= nfsd_suppattrs1(cstate
->minorversion
);
713 readdir
->rd_bmval
[2] &= nfsd_suppattrs2(cstate
->minorversion
);
715 if ((cookie
== 1) || (cookie
== 2) ||
716 (cookie
== 0 && memcmp(readdir
->rd_verf
.data
, zeroverf
.data
, NFS4_VERIFIER_SIZE
)))
717 return nfserr_bad_cookie
;
719 readdir
->rd_rqstp
= rqstp
;
720 readdir
->rd_fhp
= &cstate
->current_fh
;
725 nfsd4_readlink(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
726 struct nfsd4_readlink
*readlink
)
728 readlink
->rl_rqstp
= rqstp
;
729 readlink
->rl_fhp
= &cstate
->current_fh
;
734 nfsd4_remove(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
735 struct nfsd4_remove
*remove
)
739 if (locks_in_grace())
741 status
= nfsd_unlink(rqstp
, &cstate
->current_fh
, 0,
742 remove
->rm_name
, remove
->rm_namelen
);
743 if (status
== nfserr_symlink
)
744 return nfserr_notdir
;
746 fh_unlock(&cstate
->current_fh
);
747 set_change_info(&remove
->rm_cinfo
, &cstate
->current_fh
);
753 nfsd4_rename(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
754 struct nfsd4_rename
*rename
)
756 __be32 status
= nfserr_nofilehandle
;
758 if (!cstate
->save_fh
.fh_dentry
)
760 if (locks_in_grace() && !(cstate
->save_fh
.fh_export
->ex_flags
761 & NFSEXP_NOSUBTREECHECK
))
763 status
= nfsd_rename(rqstp
, &cstate
->save_fh
, rename
->rn_sname
,
764 rename
->rn_snamelen
, &cstate
->current_fh
,
765 rename
->rn_tname
, rename
->rn_tnamelen
);
767 /* the underlying filesystem returns different error's than required
768 * by NFSv4. both save_fh and current_fh have been verified.. */
769 if (status
== nfserr_isdir
)
770 status
= nfserr_exist
;
771 else if ((status
== nfserr_notdir
) &&
772 (S_ISDIR(cstate
->save_fh
.fh_dentry
->d_inode
->i_mode
) &&
773 S_ISDIR(cstate
->current_fh
.fh_dentry
->d_inode
->i_mode
)))
774 status
= nfserr_exist
;
775 else if (status
== nfserr_symlink
)
776 status
= nfserr_notdir
;
779 set_change_info(&rename
->rn_sinfo
, &cstate
->current_fh
);
780 set_change_info(&rename
->rn_tinfo
, &cstate
->save_fh
);
786 nfsd4_secinfo(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
787 struct nfsd4_secinfo
*secinfo
)
790 struct svc_export
*exp
;
791 struct dentry
*dentry
;
794 fh_init(&resfh
, NFS4_FHSIZE
);
795 err
= fh_verify(rqstp
, &cstate
->current_fh
, S_IFDIR
, NFSD_MAY_EXEC
);
798 err
= nfsd_lookup_dentry(rqstp
, &cstate
->current_fh
,
799 secinfo
->si_name
, secinfo
->si_namelen
,
803 if (dentry
->d_inode
== NULL
) {
807 secinfo
->si_exp
= exp
;
809 if (cstate
->minorversion
)
810 /* See rfc 5661 section 2.6.3.1.1.8 */
811 fh_put(&cstate
->current_fh
);
816 nfsd4_secinfo_no_name(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
817 struct nfsd4_secinfo_no_name
*sin
)
821 switch (sin
->sin_style
) {
822 case NFS4_SECINFO_STYLE4_CURRENT_FH
:
824 case NFS4_SECINFO_STYLE4_PARENT
:
825 err
= nfsd4_do_lookupp(rqstp
, &cstate
->current_fh
);
832 exp_get(cstate
->current_fh
.fh_export
);
833 sin
->sin_exp
= cstate
->current_fh
.fh_export
;
834 fh_put(&cstate
->current_fh
);
839 nfsd4_setattr(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
840 struct nfsd4_setattr
*setattr
)
842 __be32 status
= nfs_ok
;
844 if (setattr
->sa_iattr
.ia_valid
& ATTR_SIZE
) {
846 status
= nfs4_preprocess_stateid_op(cstate
,
847 &setattr
->sa_stateid
, WR_STATE
, NULL
);
850 dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
854 status
= mnt_want_write(cstate
->current_fh
.fh_export
->ex_path
.mnt
);
859 status
= check_attr_support(rqstp
, cstate
, setattr
->sa_bmval
,
864 if (setattr
->sa_acl
!= NULL
)
865 status
= nfsd4_set_nfs4_acl(rqstp
, &cstate
->current_fh
,
869 status
= nfsd_setattr(rqstp
, &cstate
->current_fh
, &setattr
->sa_iattr
,
872 mnt_drop_write(cstate
->current_fh
.fh_export
->ex_path
.mnt
);
877 nfsd4_write(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
878 struct nfsd4_write
*write
)
880 stateid_t
*stateid
= &write
->wr_stateid
;
881 struct file
*filp
= NULL
;
883 __be32 status
= nfs_ok
;
886 /* no need to check permission - this will be done in nfsd_write() */
888 if (write
->wr_offset
>= OFFSET_MAX
)
892 status
= nfs4_preprocess_stateid_op(cstate
, stateid
, WR_STATE
, &filp
);
898 dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
902 cnt
= write
->wr_buflen
;
903 write
->wr_how_written
= write
->wr_stable_how
;
904 p
= (u32
*)write
->wr_verifier
.data
;
905 *p
++ = nfssvc_boot
.tv_sec
;
906 *p
++ = nfssvc_boot
.tv_usec
;
908 status
= nfsd_write(rqstp
, &cstate
->current_fh
, filp
,
909 write
->wr_offset
, rqstp
->rq_vec
, write
->wr_vlen
,
910 &cnt
, &write
->wr_how_written
);
914 write
->wr_bytes_written
= cnt
;
916 if (status
== nfserr_symlink
)
917 status
= nfserr_inval
;
921 /* This routine never returns NFS_OK! If there are no other errors, it
922 * will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
923 * attributes matched. VERIFY is implemented by mapping NFSERR_SAME
924 * to NFS_OK after the call; NVERIFY by mapping NFSERR_NOT_SAME to NFS_OK.
927 _nfsd4_verify(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
928 struct nfsd4_verify
*verify
)
934 status
= fh_verify(rqstp
, &cstate
->current_fh
, 0, NFSD_MAY_NOP
);
938 status
= check_attr_support(rqstp
, cstate
, verify
->ve_bmval
, NULL
);
942 if ((verify
->ve_bmval
[0] & FATTR4_WORD0_RDATTR_ERROR
)
943 || (verify
->ve_bmval
[1] & NFSD_WRITEONLY_ATTRS_WORD1
))
945 if (verify
->ve_attrlen
& 3)
949 * bitmap_len(1) + bitmap(2) + attr_len(1) = 4
951 count
= 4 + (verify
->ve_attrlen
>> 2);
952 buf
= kmalloc(count
<< 2, GFP_KERNEL
);
954 return nfserr_resource
;
956 status
= nfsd4_encode_fattr(&cstate
->current_fh
,
957 cstate
->current_fh
.fh_export
,
958 cstate
->current_fh
.fh_dentry
, buf
,
959 &count
, verify
->ve_bmval
,
962 /* this means that nfsd4_encode_fattr() ran out of space */
963 if (status
== nfserr_resource
&& count
== 0)
964 status
= nfserr_not_same
;
969 p
= buf
+ 1 + ntohl(buf
[0]);
970 status
= nfserr_not_same
;
971 if (ntohl(*p
++) != verify
->ve_attrlen
)
973 if (!memcmp(p
, verify
->ve_attrval
, verify
->ve_attrlen
))
974 status
= nfserr_same
;
982 nfsd4_nverify(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
983 struct nfsd4_verify
*verify
)
987 status
= _nfsd4_verify(rqstp
, cstate
, verify
);
988 return status
== nfserr_not_same
? nfs_ok
: status
;
992 nfsd4_verify(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*cstate
,
993 struct nfsd4_verify
*verify
)
997 status
= _nfsd4_verify(rqstp
, cstate
, verify
);
998 return status
== nfserr_same
? nfs_ok
: status
;
1005 nfsd4_proc_null(struct svc_rqst
*rqstp
, void *argp
, void *resp
)
1010 static inline void nfsd4_increment_op_stats(u32 opnum
)
1012 if (opnum
>= FIRST_NFS4_OP
&& opnum
<= LAST_NFS4_OP
)
1013 nfsdstats
.nfs4_opcount
[opnum
]++;
1016 typedef __be32(*nfsd4op_func
)(struct svc_rqst
*, struct nfsd4_compound_state
*,
1018 enum nfsd4_op_flags
{
1019 ALLOWED_WITHOUT_FH
= 1 << 0, /* No current filehandle required */
1020 ALLOWED_ON_ABSENT_FS
= 1 << 1, /* ops processed on absent fs */
1021 ALLOWED_AS_FIRST_OP
= 1 << 2, /* ops reqired first in compound */
1022 /* For rfc 5661 section 2.6.3.1.1: */
1023 OP_HANDLES_WRONGSEC
= 1 << 3,
1024 OP_IS_PUTFH_LIKE
= 1 << 4,
1027 struct nfsd4_operation
{
1028 nfsd4op_func op_func
;
1032 * We use the DRC for compounds containing non-idempotent
1033 * operations, *except* those that are 4.1-specific (since
1034 * sessions provide their own EOS), and except for stateful
1035 * operations other than setclientid and setclientid_confirm
1036 * (since sequence numbers provide EOS for open, lock, etc in
1039 bool op_cacheresult
;
1042 static struct nfsd4_operation nfsd4_ops
[];
1044 static const char *nfsd4_op_name(unsigned opnum
);
1047 * Enforce NFSv4.1 COMPOUND ordering rules:
1049 * Also note, enforced elsewhere:
1050 * - SEQUENCE other than as first op results in
1051 * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
1052 * - BIND_CONN_TO_SESSION must be the only op in its compound.
1053 * (Enforced in nfsd4_bind_conn_to_session().)
1054 * - DESTROY_SESSION must be the final operation in a compound, if
1055 * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
1056 * (Enforced in nfsd4_destroy_session().)
1058 static __be32
nfs41_check_op_ordering(struct nfsd4_compoundargs
*args
)
1060 struct nfsd4_op
*op
= &args
->ops
[0];
1062 /* These ordering requirements don't apply to NFSv4.0: */
1063 if (args
->minorversion
== 0)
1065 /* This is weird, but OK, not our problem: */
1066 if (args
->opcnt
== 0)
1068 if (op
->status
== nfserr_op_illegal
)
1070 if (!(nfsd4_ops
[op
->opnum
].op_flags
& ALLOWED_AS_FIRST_OP
))
1071 return nfserr_op_not_in_session
;
1072 if (op
->opnum
== OP_SEQUENCE
)
1074 if (args
->opcnt
!= 1)
1075 return nfserr_not_only_op
;
1079 static inline struct nfsd4_operation
*OPDESC(struct nfsd4_op
*op
)
1081 return &nfsd4_ops
[op
->opnum
];
1084 bool nfsd4_cache_this_op(struct nfsd4_op
*op
)
1086 return OPDESC(op
)->op_cacheresult
;
1089 static bool need_wrongsec_check(struct svc_rqst
*rqstp
)
1091 struct nfsd4_compoundres
*resp
= rqstp
->rq_resp
;
1092 struct nfsd4_compoundargs
*argp
= rqstp
->rq_argp
;
1093 struct nfsd4_op
*this = &argp
->ops
[resp
->opcnt
- 1];
1094 struct nfsd4_op
*next
= &argp
->ops
[resp
->opcnt
];
1095 struct nfsd4_operation
*thisd
;
1096 struct nfsd4_operation
*nextd
;
1098 thisd
= OPDESC(this);
1100 * Most ops check wronsec on our own; only the putfh-like ops
1101 * have special rules.
1103 if (!(thisd
->op_flags
& OP_IS_PUTFH_LIKE
))
1106 * rfc 5661 2.6.3.1.1.6: don't bother erroring out a
1107 * put-filehandle operation if we're not going to use the
1110 if (argp
->opcnt
== resp
->opcnt
)
1113 nextd
= OPDESC(next
);
1115 * Rest of 2.6.3.1.1: certain operations will return WRONGSEC
1116 * errors themselves as necessary; others should check for them
1119 return !(nextd
->op_flags
& OP_HANDLES_WRONGSEC
);
1126 nfsd4_proc_compound(struct svc_rqst
*rqstp
,
1127 struct nfsd4_compoundargs
*args
,
1128 struct nfsd4_compoundres
*resp
)
1130 struct nfsd4_op
*op
;
1131 struct nfsd4_operation
*opdesc
;
1132 struct nfsd4_compound_state
*cstate
= &resp
->cstate
;
1136 resp
->xbuf
= &rqstp
->rq_res
;
1137 resp
->p
= rqstp
->rq_res
.head
[0].iov_base
+
1138 rqstp
->rq_res
.head
[0].iov_len
;
1139 resp
->tagp
= resp
->p
;
1140 /* reserve space for: taglen, tag, and opcnt */
1141 resp
->p
+= 2 + XDR_QUADLEN(args
->taglen
);
1142 resp
->end
= rqstp
->rq_res
.head
[0].iov_base
+ PAGE_SIZE
;
1143 resp
->taglen
= args
->taglen
;
1144 resp
->tag
= args
->tag
;
1146 resp
->rqstp
= rqstp
;
1147 resp
->cstate
.minorversion
= args
->minorversion
;
1148 resp
->cstate
.replay_owner
= NULL
;
1149 resp
->cstate
.session
= NULL
;
1150 fh_init(&resp
->cstate
.current_fh
, NFS4_FHSIZE
);
1151 fh_init(&resp
->cstate
.save_fh
, NFS4_FHSIZE
);
1153 * Don't use the deferral mechanism for NFSv4; compounds make it
1154 * too hard to avoid non-idempotency problems.
1156 rqstp
->rq_usedeferral
= 0;
1159 * According to RFC3010, this takes precedence over all other errors.
1161 status
= nfserr_minor_vers_mismatch
;
1162 if (args
->minorversion
> nfsd_supported_minorversion
)
1165 status
= nfs41_check_op_ordering(args
);
1168 op
->status
= status
;
1172 while (!status
&& resp
->opcnt
< args
->opcnt
) {
1173 op
= &args
->ops
[resp
->opcnt
++];
1175 dprintk("nfsv4 compound op #%d/%d: %d (%s)\n",
1176 resp
->opcnt
, args
->opcnt
, op
->opnum
,
1177 nfsd4_op_name(op
->opnum
));
1179 * The XDR decode routines may have pre-set op->status;
1180 * for example, if there is a miscellaneous XDR error
1181 * it will be set to nfserr_bad_xdr.
1186 /* We must be able to encode a successful response to
1187 * this operation, with enough room left over to encode a
1188 * failed response to the next operation. If we don't
1189 * have enough room, fail with ERR_RESOURCE.
1191 slack_bytes
= (char *)resp
->end
- (char *)resp
->p
;
1192 if (slack_bytes
< COMPOUND_SLACK_SPACE
1193 + COMPOUND_ERR_SLACK_SPACE
) {
1194 BUG_ON(slack_bytes
< COMPOUND_ERR_SLACK_SPACE
);
1195 op
->status
= nfserr_resource
;
1199 opdesc
= OPDESC(op
);
1201 if (!cstate
->current_fh
.fh_dentry
) {
1202 if (!(opdesc
->op_flags
& ALLOWED_WITHOUT_FH
)) {
1203 op
->status
= nfserr_nofilehandle
;
1206 } else if (cstate
->current_fh
.fh_export
->ex_fslocs
.migrated
&&
1207 !(opdesc
->op_flags
& ALLOWED_ON_ABSENT_FS
)) {
1208 op
->status
= nfserr_moved
;
1212 if (opdesc
->op_func
)
1213 op
->status
= opdesc
->op_func(rqstp
, cstate
, &op
->u
);
1215 BUG_ON(op
->status
== nfs_ok
);
1217 if (!op
->status
&& need_wrongsec_check(rqstp
))
1218 op
->status
= check_nfsd_access(cstate
->current_fh
.fh_export
, rqstp
);
1221 /* Only from SEQUENCE */
1222 if (resp
->cstate
.status
== nfserr_replay_cache
) {
1223 dprintk("%s NFS4.1 replay from cache\n", __func__
);
1224 status
= op
->status
;
1227 if (op
->status
== nfserr_replay_me
) {
1228 op
->replay
= &cstate
->replay_owner
->so_replay
;
1229 nfsd4_encode_replay(resp
, op
);
1230 status
= op
->status
= op
->replay
->rp_status
;
1232 nfsd4_encode_operation(resp
, op
);
1233 status
= op
->status
;
1236 dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n",
1237 args
->ops
, args
->opcnt
, resp
->opcnt
, op
->opnum
,
1238 be32_to_cpu(status
));
1240 if (cstate
->replay_owner
) {
1241 nfs4_put_stateowner(cstate
->replay_owner
);
1242 cstate
->replay_owner
= NULL
;
1244 /* XXX Ugh, we need to get rid of this kind of special case: */
1245 if (op
->opnum
== OP_READ
&& op
->u
.read
.rd_filp
)
1246 fput(op
->u
.read
.rd_filp
);
1248 nfsd4_increment_op_stats(op
->opnum
);
1251 resp
->cstate
.status
= status
;
1252 fh_put(&resp
->cstate
.current_fh
);
1253 fh_put(&resp
->cstate
.save_fh
);
1254 BUG_ON(resp
->cstate
.replay_owner
);
1256 /* Reset deferral mechanism for RPC deferrals */
1257 rqstp
->rq_usedeferral
= 1;
1258 dprintk("nfsv4 compound returned %d\n", ntohl(status
));
1262 static struct nfsd4_operation nfsd4_ops
[] = {
1264 .op_func
= (nfsd4op_func
)nfsd4_access
,
1265 .op_name
= "OP_ACCESS",
1268 .op_func
= (nfsd4op_func
)nfsd4_close
,
1269 .op_name
= "OP_CLOSE",
1272 .op_func
= (nfsd4op_func
)nfsd4_commit
,
1273 .op_name
= "OP_COMMIT",
1276 .op_func
= (nfsd4op_func
)nfsd4_create
,
1277 .op_name
= "OP_CREATE",
1278 .op_cacheresult
= true,
1280 [OP_DELEGRETURN
] = {
1281 .op_func
= (nfsd4op_func
)nfsd4_delegreturn
,
1282 .op_name
= "OP_DELEGRETURN",
1285 .op_func
= (nfsd4op_func
)nfsd4_getattr
,
1286 .op_flags
= ALLOWED_ON_ABSENT_FS
,
1287 .op_name
= "OP_GETATTR",
1290 .op_func
= (nfsd4op_func
)nfsd4_getfh
,
1291 .op_name
= "OP_GETFH",
1294 .op_func
= (nfsd4op_func
)nfsd4_link
,
1295 .op_name
= "OP_LINK",
1296 .op_cacheresult
= true,
1299 .op_func
= (nfsd4op_func
)nfsd4_lock
,
1300 .op_name
= "OP_LOCK",
1303 .op_func
= (nfsd4op_func
)nfsd4_lockt
,
1304 .op_name
= "OP_LOCKT",
1307 .op_func
= (nfsd4op_func
)nfsd4_locku
,
1308 .op_name
= "OP_LOCKU",
1311 .op_func
= (nfsd4op_func
)nfsd4_lookup
,
1312 .op_flags
= OP_HANDLES_WRONGSEC
,
1313 .op_name
= "OP_LOOKUP",
1316 .op_func
= (nfsd4op_func
)nfsd4_lookupp
,
1317 .op_flags
= OP_HANDLES_WRONGSEC
,
1318 .op_name
= "OP_LOOKUPP",
1321 .op_func
= (nfsd4op_func
)nfsd4_nverify
,
1322 .op_name
= "OP_NVERIFY",
1325 .op_func
= (nfsd4op_func
)nfsd4_open
,
1326 .op_flags
= OP_HANDLES_WRONGSEC
,
1327 .op_name
= "OP_OPEN",
1329 [OP_OPEN_CONFIRM
] = {
1330 .op_func
= (nfsd4op_func
)nfsd4_open_confirm
,
1331 .op_name
= "OP_OPEN_CONFIRM",
1333 [OP_OPEN_DOWNGRADE
] = {
1334 .op_func
= (nfsd4op_func
)nfsd4_open_downgrade
,
1335 .op_name
= "OP_OPEN_DOWNGRADE",
1338 .op_func
= (nfsd4op_func
)nfsd4_putfh
,
1339 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
1341 .op_name
= "OP_PUTFH",
1344 .op_func
= (nfsd4op_func
)nfsd4_putrootfh
,
1345 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
1347 .op_name
= "OP_PUTPUBFH",
1350 .op_func
= (nfsd4op_func
)nfsd4_putrootfh
,
1351 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
1353 .op_name
= "OP_PUTROOTFH",
1356 .op_func
= (nfsd4op_func
)nfsd4_read
,
1357 .op_name
= "OP_READ",
1360 .op_func
= (nfsd4op_func
)nfsd4_readdir
,
1361 .op_name
= "OP_READDIR",
1364 .op_func
= (nfsd4op_func
)nfsd4_readlink
,
1365 .op_name
= "OP_READLINK",
1368 .op_func
= (nfsd4op_func
)nfsd4_remove
,
1369 .op_name
= "OP_REMOVE",
1370 .op_cacheresult
= true,
1373 .op_name
= "OP_RENAME",
1374 .op_func
= (nfsd4op_func
)nfsd4_rename
,
1375 .op_cacheresult
= true,
1378 .op_func
= (nfsd4op_func
)nfsd4_renew
,
1379 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
,
1380 .op_name
= "OP_RENEW",
1383 .op_func
= (nfsd4op_func
)nfsd4_restorefh
,
1384 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
1386 .op_name
= "OP_RESTOREFH",
1389 .op_func
= (nfsd4op_func
)nfsd4_savefh
,
1390 .op_flags
= OP_HANDLES_WRONGSEC
,
1391 .op_name
= "OP_SAVEFH",
1394 .op_func
= (nfsd4op_func
)nfsd4_secinfo
,
1395 .op_flags
= OP_HANDLES_WRONGSEC
,
1396 .op_name
= "OP_SECINFO",
1399 .op_func
= (nfsd4op_func
)nfsd4_setattr
,
1400 .op_name
= "OP_SETATTR",
1401 .op_cacheresult
= true,
1403 [OP_SETCLIENTID
] = {
1404 .op_func
= (nfsd4op_func
)nfsd4_setclientid
,
1405 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
,
1406 .op_name
= "OP_SETCLIENTID",
1407 .op_cacheresult
= true,
1409 [OP_SETCLIENTID_CONFIRM
] = {
1410 .op_func
= (nfsd4op_func
)nfsd4_setclientid_confirm
,
1411 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
,
1412 .op_name
= "OP_SETCLIENTID_CONFIRM",
1413 .op_cacheresult
= true,
1416 .op_func
= (nfsd4op_func
)nfsd4_verify
,
1417 .op_name
= "OP_VERIFY",
1420 .op_func
= (nfsd4op_func
)nfsd4_write
,
1421 .op_name
= "OP_WRITE",
1422 .op_cacheresult
= true,
1424 [OP_RELEASE_LOCKOWNER
] = {
1425 .op_func
= (nfsd4op_func
)nfsd4_release_lockowner
,
1426 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_ON_ABSENT_FS
,
1427 .op_name
= "OP_RELEASE_LOCKOWNER",
1430 /* NFSv4.1 operations */
1431 [OP_EXCHANGE_ID
] = {
1432 .op_func
= (nfsd4op_func
)nfsd4_exchange_id
,
1433 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_AS_FIRST_OP
,
1434 .op_name
= "OP_EXCHANGE_ID",
1436 [OP_BIND_CONN_TO_SESSION
] = {
1437 .op_func
= (nfsd4op_func
)nfsd4_bind_conn_to_session
,
1438 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_AS_FIRST_OP
,
1439 .op_name
= "OP_BIND_CONN_TO_SESSION",
1441 [OP_CREATE_SESSION
] = {
1442 .op_func
= (nfsd4op_func
)nfsd4_create_session
,
1443 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_AS_FIRST_OP
,
1444 .op_name
= "OP_CREATE_SESSION",
1446 [OP_DESTROY_SESSION
] = {
1447 .op_func
= (nfsd4op_func
)nfsd4_destroy_session
,
1448 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_AS_FIRST_OP
,
1449 .op_name
= "OP_DESTROY_SESSION",
1452 .op_func
= (nfsd4op_func
)nfsd4_sequence
,
1453 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_AS_FIRST_OP
,
1454 .op_name
= "OP_SEQUENCE",
1456 [OP_DESTROY_CLIENTID
] = {
1458 .op_flags
= ALLOWED_WITHOUT_FH
| ALLOWED_AS_FIRST_OP
,
1459 .op_name
= "OP_DESTROY_CLIENTID",
1461 [OP_RECLAIM_COMPLETE
] = {
1462 .op_func
= (nfsd4op_func
)nfsd4_reclaim_complete
,
1463 .op_flags
= ALLOWED_WITHOUT_FH
,
1464 .op_name
= "OP_RECLAIM_COMPLETE",
1466 [OP_SECINFO_NO_NAME
] = {
1467 .op_func
= (nfsd4op_func
)nfsd4_secinfo_no_name
,
1468 .op_flags
= OP_HANDLES_WRONGSEC
,
1469 .op_name
= "OP_SECINFO_NO_NAME",
1471 [OP_TEST_STATEID
] = {
1472 .op_func
= (nfsd4op_func
)nfsd4_test_stateid
,
1473 .op_flags
= ALLOWED_WITHOUT_FH
,
1474 .op_name
= "OP_TEST_STATEID",
1476 [OP_FREE_STATEID
] = {
1477 .op_func
= (nfsd4op_func
)nfsd4_free_stateid
,
1478 .op_flags
= ALLOWED_WITHOUT_FH
,
1479 .op_name
= "OP_FREE_STATEID",
1483 static const char *nfsd4_op_name(unsigned opnum
)
1485 if (opnum
< ARRAY_SIZE(nfsd4_ops
))
1486 return nfsd4_ops
[opnum
].op_name
;
1487 return "unknown_operation";
1490 #define nfsd4_voidres nfsd4_voidargs
1491 struct nfsd4_voidargs
{ int dummy
; };
1493 static struct svc_procedure nfsd_procedures4
[2] = {
1495 .pc_func
= (svc_procfunc
) nfsd4_proc_null
,
1496 .pc_encode
= (kxdrproc_t
) nfs4svc_encode_voidres
,
1497 .pc_argsize
= sizeof(struct nfsd4_voidargs
),
1498 .pc_ressize
= sizeof(struct nfsd4_voidres
),
1499 .pc_cachetype
= RC_NOCACHE
,
1502 [NFSPROC4_COMPOUND
] = {
1503 .pc_func
= (svc_procfunc
) nfsd4_proc_compound
,
1504 .pc_decode
= (kxdrproc_t
) nfs4svc_decode_compoundargs
,
1505 .pc_encode
= (kxdrproc_t
) nfs4svc_encode_compoundres
,
1506 .pc_argsize
= sizeof(struct nfsd4_compoundargs
),
1507 .pc_ressize
= sizeof(struct nfsd4_compoundres
),
1508 .pc_release
= nfsd4_release_compoundargs
,
1509 .pc_cachetype
= RC_NOCACHE
,
1510 .pc_xdrressize
= NFSD_BUFSIZE
/4,
1514 struct svc_version nfsd_version4
= {
1517 .vs_proc
= nfsd_procedures4
,
1518 .vs_dispatch
= nfsd_dispatch
,
1519 .vs_xdrsize
= NFS4_SVC_XDRSIZE
,