2 * Copyright (c) 2000-2001 Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/malloc.h>
46 #include <sys/sysctl.h>
47 #include <sys/socketvar.h>
49 #include <sys/iconv.h>
51 #include <netsmb/smb.h>
52 #include <netsmb/smb_subr.h>
53 #include <netsmb/smb_conn.h>
54 #include <netsmb/smb_tran.h>
55 #include <netsmb/smb_trantcp.h>
57 static struct smb_connobj smb_vclist;
58 static int smb_vcnext = 1; /* next unique id for VC */
60 SYSCTL_NODE(_net, OID_AUTO, smb, CTLFLAG_RW, NULL, "SMB protocol");
62 MALLOC_DEFINE(M_SMBCONN, "SMB conn", "SMB connection");
64 static void smb_co_init(struct smb_connobj *cp, int level, char *objname,
66 static void smb_co_done(struct smb_connobj *cp);
67 static int smb_co_lockstatus(struct smb_connobj *cp, struct thread *td);
69 static int smb_vc_disconnect(struct smb_vc *vcp);
70 static void smb_vc_free(struct smb_connobj *cp);
71 static void smb_vc_gone(struct smb_connobj *cp, struct smb_cred *scred);
72 static smb_co_free_t smb_share_free;
73 static smb_co_gone_t smb_share_gone;
75 static int smb_sysctl_treedump(SYSCTL_HANDLER_ARGS);
77 SYSCTL_PROC(_net_smb, OID_AUTO, treedump, CTLFLAG_RD | CTLTYPE_OPAQUE,
78 NULL, 0, smb_sysctl_treedump, "S,treedump", "Requester tree");
84 smb_co_init(&smb_vclist, SMBL_SM, "smbsm", curthread);
85 smb_co_unlock(&smb_vclist, 0, curthread);
93 /* XXX: hold the mutex */
94 if (smb_vclist.co_usecount > 1) {
95 SMBERROR("%d connections still active\n", smb_vclist.co_usecount - 1);
98 smb_co_done(&smb_vclist);
103 smb_sm_lockvclist(int flags, struct thread *td)
106 return smb_co_lock(&smb_vclist, flags | LK_CANRECURSE, td);
110 smb_sm_unlockvclist(struct thread *td)
113 smb_co_unlock(&smb_vclist, LK_RELEASE, td);
117 smb_sm_lookupint(struct smb_vcspec *vcspec, struct smb_sharespec *shspec,
118 struct smb_cred *scred, struct smb_vc **vcpp)
120 struct thread *td = scred->scr_td;
121 struct smb_connobj *scp;
126 vcspec->shspec = shspec;
129 SMBCO_FOREACH(scp, &smb_vclist) {
130 vcp = (struct smb_vc *)scp;
131 error = smb_vc_lock(vcp, LK_EXCLUSIVE, td);
135 if ((vcp->obj.co_flags & SMBV_PRIVATE) ||
136 !CONNADDREQ(vcp->vc_paddr, vcspec->sap) ||
137 strcmp(vcp->vc_username, vcspec->username) != 0)
139 if (vcspec->owner != SMBM_ANY_OWNER) {
140 if (vcp->vc_uid != vcspec->owner)
144 if (vcspec->group != SMBM_ANY_GROUP) {
145 if (vcp->vc_grp != vcspec->group)
149 if (vcspec->mode & SMBM_EXACT) {
150 if (!exact || (vcspec->mode & SMBM_MASK) !=
154 if (smb_vc_access(vcp, scred, vcspec->mode) != 0)
158 error = (int)smb_vc_lookupshare(vcp, shspec, scred,
168 smb_vc_unlock(vcp, 0, td);
178 smb_sm_lookup(struct smb_vcspec *vcspec, struct smb_sharespec *shspec,
179 struct smb_cred *scred, struct smb_vc **vcpp)
181 struct thread *td = scred->scr_td;
183 struct smb_share *ssp = NULL;
188 error = smb_sm_lockvclist(LK_EXCLUSIVE, td);
191 error = smb_sm_lookupint(vcspec, shspec, scred, vcpp);
192 if (error == 0 || (vcspec->flags & SMBV_CREATE) == 0) {
193 smb_sm_unlockvclist(td);
196 error = smb_sm_lookupint(vcspec, NULL, scred, &vcp);
198 error = smb_vc_create(vcspec, scred, &vcp);
201 error = smb_vc_connect(vcp, scred);
207 error = smb_share_create(vcp, shspec, scred, &ssp);
210 error = smb_smb_treeconnect(ssp, scred);
214 smb_share_put(ssp, scred);
216 smb_sm_unlockvclist(td);
220 smb_vc_put(vcp, scred);
225 * Common code for connection object
228 smb_co_init(struct smb_connobj *cp, int level, char *objname, struct thread *td)
230 SLIST_INIT(&cp->co_children);
231 smb_sl_init(&cp->co_interlock, objname);
232 lockinit(&cp->co_lock, PZERO, objname, 0, 0);
233 cp->co_level = level;
235 KASSERT(smb_co_lock(cp, LK_EXCLUSIVE, td) == 0, ("smb_co_init: lock failed"));
239 smb_co_done(struct smb_connobj *cp)
241 smb_sl_destroy(&cp->co_interlock);
242 lockdestroy(&cp->co_lock);
246 smb_co_gone(struct smb_connobj *cp, struct smb_cred *scred)
248 struct smb_connobj *parent;
251 cp->co_gone(cp, scred);
252 parent = cp->co_parent;
254 smb_co_lock(parent, LK_EXCLUSIVE, scred->scr_td);
255 SLIST_REMOVE(&parent->co_children, cp, smb_connobj, co_next);
256 smb_co_put(parent, scred);
263 smb_co_ref(struct smb_connobj *cp)
272 smb_co_rele(struct smb_connobj *cp, struct smb_cred *scred)
274 struct thread *td = scred->scr_td;
277 if (cp->co_usecount > 1) {
282 if (cp->co_usecount == 0) {
283 SMBERROR("negative use_count for object %d", cp->co_level);
288 cp->co_flags |= SMBO_GONE;
290 lockmgr(&cp->co_lock, LK_DRAIN | LK_INTERLOCK, &cp->co_interlock, td);
291 smb_co_gone(cp, scred);
295 smb_co_get(struct smb_connobj *cp, int flags, struct smb_cred *scred)
299 if ((flags & LK_INTERLOCK) == 0)
302 error = smb_co_lock(cp, flags | LK_INTERLOCK, scred->scr_td);
313 smb_co_put(struct smb_connobj *cp, struct smb_cred *scred)
315 struct thread *td = scred->scr_td;
320 if (cp->co_usecount > 1) {
322 } else if (cp->co_usecount == 1) {
324 cp->co_flags |= SMBO_GONE;
327 SMBERROR("negative usecount");
329 lockmgr(&cp->co_lock, LK_RELEASE | LK_INTERLOCK, &cp->co_interlock, td);
330 if ((cp->co_flags & SMBO_GONE) == 0)
332 lockmgr(&cp->co_lock, LK_DRAIN, NULL, td);
333 smb_co_gone(cp, scred);
337 smb_co_lockstatus(struct smb_connobj *cp, struct thread *td)
339 return lockstatus(&cp->co_lock, td);
343 smb_co_lock(struct smb_connobj *cp, int flags, struct thread *td)
346 if (cp->co_flags & SMBO_GONE)
348 if ((flags & LK_TYPE_MASK) == 0)
349 flags |= LK_EXCLUSIVE;
350 if (smb_co_lockstatus(cp, td) == LK_EXCLUSIVE &&
351 (flags & LK_CANRECURSE) == 0) {
352 SMBERROR("recursive lock for object %d\n", cp->co_level);
355 return lockmgr(&cp->co_lock, flags, &cp->co_interlock, td);
359 smb_co_unlock(struct smb_connobj *cp, int flags, struct thread *td)
361 (void)lockmgr(&cp->co_lock, flags | LK_RELEASE, &cp->co_interlock, td);
365 smb_co_addchild(struct smb_connobj *parent, struct smb_connobj *child)
367 KASSERT(smb_co_lockstatus(parent, curthread) == LK_EXCLUSIVE, ("smb_co_addchild: parent not locked"));
368 KASSERT(smb_co_lockstatus(child, curthread) == LK_EXCLUSIVE, ("smb_co_addchild: child not locked"));
371 SLIST_INSERT_HEAD(&parent->co_children, child, co_next);
372 child->co_parent = parent;
376 * Session implementation
380 smb_vc_create(struct smb_vcspec *vcspec,
381 struct smb_cred *scred, struct smb_vc **vcpp)
384 struct thread *td = scred->scr_td;
385 struct ucred *cred = scred->scr_cred;
386 uid_t uid = vcspec->owner;
387 gid_t gid = vcspec->group;
388 uid_t realuid = cred->cr_uid;
389 char *domain = vcspec->domain;
392 isroot = smb_suser(cred) == 0;
394 * Only superuser can create VCs with different uid and gid
396 if (uid != SMBM_ANY_OWNER && uid != realuid && !isroot)
398 if (gid != SMBM_ANY_GROUP && !groupmember(gid, cred) && !isroot)
401 vcp = smb_zmalloc(sizeof(*vcp), M_SMBCONN, M_WAITOK);
402 smb_co_init(VCTOCP(vcp), SMBL_VC, "smb_vc", td);
403 vcp->obj.co_free = smb_vc_free;
404 vcp->obj.co_gone = smb_vc_gone;
405 vcp->vc_number = smb_vcnext++;
406 vcp->vc_timo = SMB_DEFRQTIMO;
407 vcp->vc_smbuid = SMB_UID_UNKNOWN;
408 vcp->vc_mode = vcspec->rights & SMBM_MASK;
409 vcp->obj.co_flags = vcspec->flags & (SMBV_PRIVATE | SMBV_SINGLESHARE);
410 vcp->vc_tdesc = &smb_tran_nbtcp_desc;
412 vcp->vc_mackey = NULL;
413 vcp->vc_mackeylen = 0;
415 if (uid == SMBM_ANY_OWNER)
417 if (gid == SMBM_ANY_GROUP)
418 gid = cred->cr_groups[0];
422 smb_sl_init(&vcp->vc_stlock, "vcstlock");
425 vcp->vc_paddr = sodupsockaddr(vcspec->sap, M_WAITOK);
426 if (vcp->vc_paddr == NULL)
428 vcp->vc_laddr = sodupsockaddr(vcspec->lap, M_WAITOK);
429 if (vcp->vc_laddr == NULL)
431 vcp->vc_pass = smb_strdup(vcspec->pass);
432 if (vcp->vc_pass == NULL)
434 vcp->vc_domain = smb_strdup((domain && domain[0]) ? domain :
436 if (vcp->vc_domain == NULL)
438 vcp->vc_srvname = smb_strdup(vcspec->srvname);
439 if (vcp->vc_srvname == NULL)
441 vcp->vc_username = smb_strdup(vcspec->username);
442 if (vcp->vc_username == NULL)
444 error = (int)iconv_open("tolower", vcspec->localcs, &vcp->vc_tolower);
447 error = (int)iconv_open("toupper", vcspec->localcs, &vcp->vc_toupper);
450 if (vcspec->servercs[0]) {
451 error = (int)iconv_open(vcspec->servercs, vcspec->localcs,
455 error = (int)iconv_open(vcspec->localcs, vcspec->servercs,
460 error = (int)smb_iod_create(vcp);
464 smb_co_addchild(&smb_vclist, VCTOCP(vcp));
468 smb_vc_put(vcp, scred);
473 smb_vc_free(struct smb_connobj *cp)
475 struct smb_vc *vcp = CPTOVC(cp);
478 smb_iod_destroy(vcp->vc_iod);
479 SMB_STRFREE(vcp->vc_username);
480 SMB_STRFREE(vcp->vc_srvname);
481 SMB_STRFREE(vcp->vc_pass);
482 SMB_STRFREE(vcp->vc_domain);
484 free(vcp->vc_mackey, M_SMBTEMP);
486 free(vcp->vc_paddr, M_SONAME);
488 free(vcp->vc_laddr, M_SONAME);
490 iconv_close(vcp->vc_tolower);
492 iconv_close(vcp->vc_toupper);
494 iconv_close(vcp->vc_tolocal);
495 if (vcp->vc_toserver)
496 iconv_close(vcp->vc_toserver);
497 smb_co_done(VCTOCP(vcp));
498 smb_sl_destroy(&vcp->vc_stlock);
499 free(vcp, M_SMBCONN);
503 * Called when use count of VC dropped to zero.
504 * VC should be locked on enter with LK_DRAIN.
507 smb_vc_gone(struct smb_connobj *cp, struct smb_cred *scred)
509 struct smb_vc *vcp = CPTOVC(cp);
511 smb_vc_disconnect(vcp);
515 smb_vc_ref(struct smb_vc *vcp)
517 smb_co_ref(VCTOCP(vcp));
521 smb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred)
523 smb_co_rele(VCTOCP(vcp), scred);
527 smb_vc_get(struct smb_vc *vcp, int flags, struct smb_cred *scred)
529 return smb_co_get(VCTOCP(vcp), flags, scred);
533 smb_vc_put(struct smb_vc *vcp, struct smb_cred *scred)
535 smb_co_put(VCTOCP(vcp), scred);
539 smb_vc_lock(struct smb_vc *vcp, int flags, struct thread *td)
541 return smb_co_lock(VCTOCP(vcp), flags, td);
545 smb_vc_unlock(struct smb_vc *vcp, int flags, struct thread *td)
547 smb_co_unlock(VCTOCP(vcp), flags, td);
551 smb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode)
553 struct ucred *cred = scred->scr_cred;
555 if (smb_suser(cred) == 0 || cred->cr_uid == vcp->vc_uid)
558 if (!groupmember(vcp->vc_grp, cred))
560 return (vcp->vc_mode & mode) == mode ? 0 : EACCES;
564 smb_vc_cmpshare(struct smb_share *ssp, struct smb_sharespec *dp)
568 if (strcmp(ssp->ss_name, dp->name) != 0)
570 if (dp->owner != SMBM_ANY_OWNER) {
571 if (ssp->ss_uid != dp->owner)
575 if (dp->group != SMBM_ANY_GROUP) {
576 if (ssp->ss_grp != dp->group)
581 if (dp->mode & SMBM_EXACT) {
584 return (dp->mode & SMBM_MASK) == ssp->ss_mode ? 0 : 1;
586 if (smb_share_access(ssp, dp->scred, dp->mode) != 0)
592 * Lookup share in the given VC. Share referenced and locked on return.
593 * VC expected to be locked on entry and will be left locked on exit.
596 smb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *dp,
597 struct smb_cred *scred, struct smb_share **sspp)
599 struct thread *td = scred->scr_td;
600 struct smb_connobj *scp = NULL;
601 struct smb_share *ssp = NULL;
606 SMBCO_FOREACH(scp, VCTOCP(vcp)) {
607 ssp = (struct smb_share *)scp;
608 error = smb_share_lock(ssp, LK_EXCLUSIVE, td);
611 if (smb_vc_cmpshare(ssp, dp) == 0)
613 smb_share_unlock(ssp, 0, td);
625 smb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred)
628 return smb_iod_request(vcp->vc_iod, SMBIOD_EV_CONNECT | SMBIOD_EV_SYNC, NULL);
632 * Destroy VC to server, invalidate shares linked with it.
633 * Transport should be locked on entry.
636 smb_vc_disconnect(struct smb_vc *vcp)
639 smb_iod_request(vcp->vc_iod, SMBIOD_EV_DISCONNECT | SMBIOD_EV_SYNC, NULL);
643 static char smb_emptypass[] = "";
646 smb_vc_getpass(struct smb_vc *vcp)
650 return smb_emptypass;
654 smb_vc_getinfo(struct smb_vc *vcp, struct smb_vc_info *vip)
656 bzero(vip, sizeof(struct smb_vc_info));
657 vip->itype = SMB_INFO_VC;
658 vip->usecount = vcp->obj.co_usecount;
659 vip->uid = vcp->vc_uid;
660 vip->gid = vcp->vc_grp;
661 vip->mode = vcp->vc_mode;
662 vip->flags = vcp->obj.co_flags;
663 vip->sopt = vcp->vc_sopt;
664 vip->iodstate = vcp->vc_iod->iod_state;
665 bzero(&vip->sopt.sv_skey, sizeof(vip->sopt.sv_skey));
666 snprintf(vip->srvname, sizeof(vip->srvname), "%s", vcp->vc_srvname);
667 snprintf(vip->vcname, sizeof(vip->vcname), "%s", vcp->vc_username);
672 smb_vc_nextmid(struct smb_vc *vcp)
676 SMB_CO_LOCK(&vcp->obj);
678 SMB_CO_UNLOCK(&vcp->obj);
683 * Share implementation
686 * Allocate share structure and attach it to the given VC
687 * Connection expected to be locked on entry. Share will be returned
691 smb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec,
692 struct smb_cred *scred, struct smb_share **sspp)
694 struct smb_share *ssp;
695 struct thread *td = scred->scr_td;
696 struct ucred *cred = scred->scr_cred;
697 uid_t realuid = cred->cr_uid;
698 uid_t uid = shspec->owner;
699 gid_t gid = shspec->group;
702 isroot = smb_suser(cred) == 0;
704 * Only superuser can create shares with different uid and gid
706 if (uid != SMBM_ANY_OWNER && uid != realuid && !isroot)
708 if (gid != SMBM_ANY_GROUP && !groupmember(gid, cred) && !isroot)
710 error = smb_vc_lookupshare(vcp, shspec, scred, &ssp);
712 smb_share_put(ssp, scred);
715 if (uid == SMBM_ANY_OWNER)
717 if (gid == SMBM_ANY_GROUP)
718 gid = cred->cr_groups[0];
719 ssp = smb_zmalloc(sizeof(*ssp), M_SMBCONN, M_WAITOK);
720 smb_co_init(SSTOCP(ssp), SMBL_SHARE, "smbss", td);
721 ssp->obj.co_free = smb_share_free;
722 ssp->obj.co_gone = smb_share_gone;
723 smb_sl_init(&ssp->ss_stlock, "ssstlock");
724 ssp->ss_name = smb_strdup(shspec->name);
725 if (shspec->pass && shspec->pass[0])
726 ssp->ss_pass = smb_strdup(shspec->pass);
727 ssp->ss_type = shspec->stype;
728 ssp->ss_tid = SMB_TID_UNKNOWN;
731 ssp->ss_mode = shspec->rights & SMBM_MASK;
732 smb_co_addchild(VCTOCP(vcp), SSTOCP(ssp));
738 smb_share_free(struct smb_connobj *cp)
740 struct smb_share *ssp = CPTOSS(cp);
742 SMB_STRFREE(ssp->ss_name);
743 SMB_STRFREE(ssp->ss_pass);
744 smb_sl_destroy(&ssp->ss_stlock);
745 smb_co_done(SSTOCP(ssp));
746 free(ssp, M_SMBCONN);
750 smb_share_gone(struct smb_connobj *cp, struct smb_cred *scred)
752 struct smb_share *ssp = CPTOSS(cp);
754 smb_smb_treedisconnect(ssp, scred);
758 smb_share_ref(struct smb_share *ssp)
760 smb_co_ref(SSTOCP(ssp));
764 smb_share_rele(struct smb_share *ssp, struct smb_cred *scred)
766 smb_co_rele(SSTOCP(ssp), scred);
770 smb_share_get(struct smb_share *ssp, int flags, struct smb_cred *scred)
772 return smb_co_get(SSTOCP(ssp), flags, scred);
776 smb_share_put(struct smb_share *ssp, struct smb_cred *scred)
778 smb_co_put(SSTOCP(ssp), scred);
782 smb_share_lock(struct smb_share *ssp, int flags, struct thread *td)
784 return smb_co_lock(SSTOCP(ssp), flags, td);
788 smb_share_unlock(struct smb_share *ssp, int flags, struct thread *td)
790 smb_co_unlock(SSTOCP(ssp), flags, td);
794 smb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode)
796 struct ucred *cred = scred->scr_cred;
798 if (smb_suser(cred) == 0 || cred->cr_uid == ssp->ss_uid)
801 if (!groupmember(ssp->ss_grp, cred))
803 return (ssp->ss_mode & mode) == mode ? 0 : EACCES;
807 smb_share_invalidate(struct smb_share *ssp)
809 ssp->ss_tid = SMB_TID_UNKNOWN;
813 smb_share_valid(struct smb_share *ssp)
815 return ssp->ss_tid != SMB_TID_UNKNOWN &&
816 ssp->ss_vcgenid == SSTOVC(ssp)->vc_genid;
820 smb_share_getpass(struct smb_share *ssp)
829 return smb_emptypass;
833 smb_share_getinfo(struct smb_share *ssp, struct smb_share_info *sip)
835 bzero(sip, sizeof(struct smb_share_info));
836 sip->itype = SMB_INFO_SHARE;
837 sip->usecount = ssp->obj.co_usecount;
838 sip->tid = ssp->ss_tid;
839 sip->type= ssp->ss_type;
840 sip->uid = ssp->ss_uid;
841 sip->gid = ssp->ss_grp;
842 sip->mode= ssp->ss_mode;
843 sip->flags = ssp->obj.co_flags;
844 snprintf(sip->sname, sizeof(sip->sname), "%s", ssp->ss_name);
849 * Dump an entire tree into sysctl call
852 smb_sysctl_treedump(SYSCTL_HANDLER_ARGS)
854 struct thread *td = req->td;
855 struct smb_cred scred;
856 struct smb_connobj *scp1, *scp2;
858 struct smb_share *ssp;
859 struct smb_vc_info vci;
860 struct smb_share_info ssi;
863 smb_makescred(&scred, td, td->td_ucred);
864 error = sysctl_wire_old_buffer(req, 0);
867 error = smb_sm_lockvclist(LK_SHARED, td);
870 SMBCO_FOREACH(scp1, &smb_vclist) {
871 vcp = (struct smb_vc *)scp1;
872 error = smb_vc_lock(vcp, LK_SHARED, td);
875 smb_vc_getinfo(vcp, &vci);
876 error = SYSCTL_OUT(req, &vci, sizeof(struct smb_vc_info));
878 smb_vc_unlock(vcp, 0, td);
881 SMBCO_FOREACH(scp2, VCTOCP(vcp)) {
882 ssp = (struct smb_share *)scp2;
883 error = smb_share_lock(ssp, LK_SHARED, td);
888 smb_share_getinfo(ssp, &ssi);
889 smb_share_unlock(ssp, 0, td);
890 error = SYSCTL_OUT(req, &ssi, sizeof(struct smb_share_info));
894 smb_vc_unlock(vcp, 0, td);
899 itype = SMB_INFO_NONE;
900 error = SYSCTL_OUT(req, &itype, sizeof(itype));
902 smb_sm_unlockvclist(td);