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
32 * $FreeBSD: src/sys/netsmb/smb_conn.c,v 1.1.2.1 2001/05/22 08:32:33 bp Exp $
33 * $DragonFly: src/sys/netproto/smb/smb_conn.c,v 1.3 2003/06/25 03:56:06 dillon Exp $
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 extern struct linker_set sysctl_net_smb;
62 SYSCTL_NODE(_net, OID_AUTO, smb, CTLFLAG_RW, NULL, "SMB protocol");
64 MALLOC_DEFINE(M_SMBCONN, "SMB conn", "SMB connection");
66 static void smb_co_init(struct smb_connobj *cp, int level, char *objname,
68 static void smb_co_done(struct smb_connobj *cp);
69 static int smb_co_lockstatus(struct smb_connobj *cp, struct thread *td);
71 static int smb_vc_disconnect(struct smb_vc *vcp);
72 static void smb_vc_free(struct smb_connobj *cp);
73 static void smb_vc_gone(struct smb_connobj *cp, struct smb_cred *scred);
74 static smb_co_free_t smb_share_free;
75 static smb_co_gone_t smb_share_gone;
77 static int smb_sysctl_treedump(SYSCTL_HANDLER_ARGS);
79 SYSCTL_PROC(_net_smb, OID_AUTO, treedump, CTLFLAG_RD | CTLTYPE_OPAQUE,
80 NULL, 0, smb_sysctl_treedump, "S,treedump", "Requester tree");
86 smb_co_init(&smb_vclist, SMBL_SM, "smbsm", curthread);
87 smb_co_unlock(&smb_vclist, 0, curthread);
95 /* XXX: hold the mutex */
96 if (smb_vclist.co_usecount > 1) {
97 SMBERROR("%d connections still active\n", smb_vclist.co_usecount - 1);
100 smb_co_done(&smb_vclist);
105 smb_sm_lockvclist(int flags, struct thread *td)
107 return smb_co_lock(&smb_vclist, flags | LK_CANRECURSE, td);
111 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;
125 vcspec->shspec = shspec;
127 SMBCO_FOREACH((struct smb_connobj*)vcp, &smb_vclist) {
128 error = smb_vc_lock(vcp, LK_EXCLUSIVE, td);
132 if ((vcp->obj.co_flags & SMBV_PRIVATE) ||
133 !CONNADDREQ(vcp->vc_paddr, vcspec->sap) ||
134 strcmp(vcp->vc_username, vcspec->username) != 0)
136 if (vcspec->owner != SMBM_ANY_OWNER) {
137 if (vcp->vc_uid != vcspec->owner)
141 if (vcspec->group != SMBM_ANY_GROUP) {
142 if (vcp->vc_grp != vcspec->group)
147 if (vcspec->mode & SMBM_EXACT) {
149 (vcspec->mode & SMBM_MASK) != vcp->vc_mode)
152 if (smb_vc_access(vcp, scred, vcspec->mode) != 0)
156 ithrow(smb_vc_lookupshare(vcp, shspec, scred, &vcspec->ssp));
160 smb_vc_unlock(vcp, 0, td);
174 smb_sm_lookup(struct smb_vcspec *vcspec, struct smb_sharespec *shspec,
175 struct smb_cred *scred, struct smb_vc **vcpp)
177 struct thread *td = scred->scr_td;
179 struct smb_share *ssp = NULL;
184 error = smb_sm_lockvclist(LK_EXCLUSIVE, td);
187 error = smb_sm_lookupint(vcspec, shspec, scred, vcpp);
188 if (error == 0 || (vcspec->flags & SMBV_CREATE) == 0) {
189 smb_sm_unlockvclist(td);
192 error = smb_sm_lookupint(vcspec, NULL, scred, &vcp);
194 error = smb_vc_create(vcspec, scred, &vcp);
197 error = smb_vc_connect(vcp, scred);
203 error = smb_share_create(vcp, shspec, scred, &ssp);
206 error = smb_smb_treeconnect(ssp, scred);
210 smb_share_put(ssp, scred);
212 smb_sm_unlockvclist(td);
216 smb_vc_put(vcp, scred);
221 * Common code for connection object
224 smb_co_init(struct smb_connobj *cp, int level, char *objname, struct thread *td)
226 SLIST_INIT(&cp->co_children);
227 smb_sl_init(&cp->co_interlock, objname);
228 lockinit(&cp->co_lock, PZERO, objname, 0, 0);
229 cp->co_level = level;
231 KASSERT(smb_co_lock(cp, LK_EXCLUSIVE, td) == 0,
232 ("smb_co_init: lock failed"));
236 smb_co_done(struct smb_connobj *cp)
238 smb_sl_destroy(&cp->co_interlock);
239 lockdestroy(&cp->co_lock);
243 smb_co_gone(struct smb_connobj *cp, struct smb_cred *scred)
245 struct smb_connobj *parent;
248 cp->co_gone(cp, scred);
249 parent = cp->co_parent;
251 smb_co_lock(parent, LK_EXCLUSIVE, scred->scr_td);
252 SLIST_REMOVE(&parent->co_children, cp, smb_connobj, co_next);
253 smb_co_put(parent, scred);
260 smb_co_ref(struct smb_connobj *cp, struct thread *td)
269 smb_co_rele(struct smb_connobj *cp, struct smb_cred *scred)
271 struct thread *td = scred->scr_td;
274 if (cp->co_usecount > 1) {
279 if (cp->co_usecount == 0) {
280 SMBERROR("negative use_count for object %d", cp->co_level);
285 cp->co_flags |= SMBO_GONE;
287 lockmgr(&cp->co_lock, LK_DRAIN | LK_INTERLOCK, &cp->co_interlock, td);
288 smb_co_gone(cp, scred);
292 smb_co_get(struct smb_connobj *cp, int flags, struct smb_cred *scred)
296 if ((flags & LK_INTERLOCK) == 0)
299 error = smb_co_lock(cp, flags | LK_INTERLOCK, scred->scr_td);
310 smb_co_put(struct smb_connobj *cp, struct smb_cred *scred)
312 struct thread *td = scred->scr_td;
317 if (cp->co_usecount > 1) {
319 } else if (cp->co_usecount == 1) {
321 cp->co_flags |= SMBO_GONE;
324 SMBERROR("negative usecount");
326 lockmgr(&cp->co_lock, LK_RELEASE | LK_INTERLOCK, &cp->co_interlock, td);
327 if ((cp->co_flags & SMBO_GONE) == 0)
329 lockmgr(&cp->co_lock, LK_DRAIN, NULL, td);
330 smb_co_gone(cp, scred);
334 smb_co_lockstatus(struct smb_connobj *cp, struct thread *td)
336 return lockstatus(&cp->co_lock, td);
340 smb_co_lock(struct smb_connobj *cp, int flags, struct thread *td)
343 if (cp->co_flags & SMBO_GONE)
345 if ((flags & LK_TYPE_MASK) == 0)
346 flags |= LK_EXCLUSIVE;
347 if (smb_co_lockstatus(cp, td) == LK_EXCLUSIVE &&
348 (flags & LK_CANRECURSE) == 0) {
349 SMBERROR("recursive lock for object %d\n", cp->co_level);
352 return lockmgr(&cp->co_lock, flags, &cp->co_interlock, td);
356 smb_co_unlock(struct smb_connobj *cp, int flags, struct thread *td)
358 (void)lockmgr(&cp->co_lock, flags | LK_RELEASE, &cp->co_interlock, td);
362 smb_co_addchild(struct smb_connobj *parent, struct smb_connobj *child)
364 KASSERT(smb_co_lockstatus(parent, curthread) == LK_EXCLUSIVE, ("smb_co_addchild: parent not locked"));
365 KASSERT(smb_co_lockstatus(child, curthread) == LK_EXCLUSIVE, ("smb_co_addchild: child not locked"));
367 smb_co_ref(parent, curthread);
368 SLIST_INSERT_HEAD(&parent->co_children, child, co_next);
369 child->co_parent = parent;
373 * Session implementation
377 smb_vc_create(struct smb_vcspec *vcspec,
378 struct smb_cred *scred, struct smb_vc **vcpp)
381 struct thread *td = scred->scr_td;
382 struct ucred *cred = scred->scr_cred;
383 uid_t uid = vcspec->owner;
384 gid_t gid = vcspec->group;
385 uid_t realuid = cred->cr_uid;
386 char *domain = vcspec->domain;
389 isroot = smb_suser(cred) == 0;
391 * Only superuser can create VCs with different uid and gid
393 if (uid != SMBM_ANY_OWNER && uid != realuid && !isroot)
395 if (gid != SMBM_ANY_GROUP && !groupmember(gid, cred) && !isroot)
398 vcp = smb_zmalloc(sizeof(*vcp), M_SMBCONN, M_WAITOK);
399 smb_co_init(VCTOCP(vcp), SMBL_VC, "smb_vc", td);
400 vcp->obj.co_free = smb_vc_free;
401 vcp->obj.co_gone = smb_vc_gone;
402 vcp->vc_number = smb_vcnext++;
403 vcp->vc_timo = SMB_DEFRQTIMO;
404 vcp->vc_smbuid = SMB_UID_UNKNOWN;
405 vcp->vc_mode = vcspec->rights & SMBM_MASK;
406 vcp->obj.co_flags = vcspec->flags & (SMBV_PRIVATE | SMBV_SINGLESHARE);
407 vcp->vc_tdesc = &smb_tran_nbtcp_desc;
409 if (uid == SMBM_ANY_OWNER)
411 if (gid == SMBM_ANY_GROUP)
412 gid = cred->cr_groups[0];
416 smb_sl_init(&vcp->vc_stlock, "vcstlock");
419 vcp->vc_paddr = dup_sockaddr(vcspec->sap, 1);
420 ierror(vcp->vc_paddr == NULL, ENOMEM);
422 vcp->vc_laddr = dup_sockaddr(vcspec->lap, 1);
423 ierror(vcp->vc_laddr == NULL, ENOMEM);
425 ierror((vcp->vc_pass = smb_strdup(vcspec->pass)) == NULL, ENOMEM);
427 vcp->vc_domain = smb_strdup((domain && domain[0]) ? domain : "NODOMAIN");
428 ierror(vcp->vc_domain == NULL, ENOMEM);
430 ierror((vcp->vc_srvname = smb_strdup(vcspec->srvname)) == NULL, ENOMEM);
431 ierror((vcp->vc_username = smb_strdup(vcspec->username)) == NULL, ENOMEM);
433 ithrow(iconv_open("tolower", vcspec->localcs, &vcp->vc_tolower));
434 ithrow(iconv_open("toupper", vcspec->localcs, &vcp->vc_toupper));
435 if (vcspec->servercs[0]) {
436 ithrow(iconv_open(vcspec->servercs, vcspec->localcs,
438 ithrow(iconv_open(vcspec->localcs, vcspec->servercs,
442 ithrow(smb_iod_create(vcp));
444 smb_co_addchild(&smb_vclist, VCTOCP(vcp));
446 smb_vc_put(vcp, scred);
453 smb_vc_free(struct smb_connobj *cp)
455 struct smb_vc *vcp = CPTOVC(cp);
458 smb_iod_destroy(vcp->vc_iod);
459 SMB_STRFREE(vcp->vc_username);
460 SMB_STRFREE(vcp->vc_srvname);
461 SMB_STRFREE(vcp->vc_pass);
462 SMB_STRFREE(vcp->vc_domain);
464 free(vcp->vc_paddr, M_SONAME);
466 free(vcp->vc_laddr, M_SONAME);
468 iconv_close(vcp->vc_tolower);
470 iconv_close(vcp->vc_toupper);
472 iconv_close(vcp->vc_tolocal);
473 if (vcp->vc_toserver)
474 iconv_close(vcp->vc_toserver);
475 smb_co_done(VCTOCP(vcp));
476 smb_sl_destroy(&vcp->vc_stlock);
477 free(vcp, M_SMBCONN);
481 * Called when use count of VC dropped to zero.
482 * VC should be locked on enter with LK_DRAIN.
485 smb_vc_gone(struct smb_connobj *cp, struct smb_cred *scred)
487 struct smb_vc *vcp = CPTOVC(cp);
489 smb_vc_disconnect(vcp);
493 smb_vc_ref(struct smb_vc *vcp, struct thread *td)
495 smb_co_ref(VCTOCP(vcp), td);
499 smb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred)
501 smb_co_rele(VCTOCP(vcp), scred);
505 smb_vc_get(struct smb_vc *vcp, int flags, struct smb_cred *scred)
507 return smb_co_get(VCTOCP(vcp), flags, scred);
511 smb_vc_put(struct smb_vc *vcp, struct smb_cred *scred)
513 smb_co_put(VCTOCP(vcp), scred);
517 smb_vc_lock(struct smb_vc *vcp, int flags, struct thread *td)
519 return smb_co_lock(VCTOCP(vcp), flags, td);
523 smb_vc_unlock(struct smb_vc *vcp, int flags, struct thread *td)
525 smb_co_unlock(VCTOCP(vcp), flags, td);
529 smb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode)
531 struct ucred *cred = scred->scr_cred;
533 if (smb_suser(cred) == 0 || cred->cr_uid == vcp->vc_uid)
536 if (!groupmember(vcp->vc_grp, cred))
538 return (vcp->vc_mode & mode) == mode ? 0 : EACCES;
542 smb_vc_cmpshare(struct smb_share *ssp, struct smb_sharespec *dp)
546 if (strcmp(ssp->ss_name, dp->name) != 0)
548 if (dp->owner != SMBM_ANY_OWNER) {
549 if (ssp->ss_uid != dp->owner)
553 if (dp->group != SMBM_ANY_GROUP) {
554 if (ssp->ss_grp != dp->group)
559 if (dp->mode & SMBM_EXACT) {
562 return (dp->mode & SMBM_MASK) == ssp->ss_mode ? 0 : 1;
564 if (smb_share_access(ssp, dp->scred, dp->mode) != 0)
570 * Lookup share in the given VC. Share referenced and locked on return.
571 * VC expected to be locked on entry and will be left locked on exit.
574 smb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *dp,
575 struct smb_cred *scred, struct smb_share **sspp)
577 struct thread *td = scred->scr_td;
578 struct smb_share *ssp = NULL;
583 SMBCO_FOREACH((struct smb_connobj*)ssp, VCTOCP(vcp)) {
584 error = smb_share_lock(ssp, LK_EXCLUSIVE, td);
587 if (smb_vc_cmpshare(ssp, dp) == 0)
589 smb_share_unlock(ssp, 0, td);
592 smb_share_ref(ssp, td);
601 smb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred)
604 return smb_iod_request(vcp->vc_iod, SMBIOD_EV_CONNECT | SMBIOD_EV_SYNC, NULL);
608 * Destroy VC to server, invalidate shares linked with it.
609 * Transport should be locked on entry.
612 smb_vc_disconnect(struct smb_vc *vcp)
615 smb_iod_request(vcp->vc_iod, SMBIOD_EV_DISCONNECT | SMBIOD_EV_SYNC, NULL);
619 static char smb_emptypass[] = "";
622 smb_vc_getpass(struct smb_vc *vcp)
626 return smb_emptypass;
630 smb_vc_getinfo(struct smb_vc *vcp, struct smb_vc_info *vip)
632 bzero(vip, sizeof(struct smb_vc_info));
633 vip->itype = SMB_INFO_VC;
634 vip->usecount = vcp->obj.co_usecount;
635 vip->uid = vcp->vc_uid;
636 vip->gid = vcp->vc_grp;
637 vip->mode = vcp->vc_mode;
638 vip->flags = vcp->obj.co_flags;
639 vip->sopt = vcp->vc_sopt;
640 vip->iodstate = vcp->vc_iod->iod_state;
641 bzero(&vip->sopt.sv_skey, sizeof(vip->sopt.sv_skey));
642 snprintf(vip->srvname, sizeof(vip->srvname), "%s", vcp->vc_srvname);
643 snprintf(vip->vcname, sizeof(vip->vcname), "%s", vcp->vc_username);
648 smb_vc_nextmid(struct smb_vc *vcp)
652 SMB_CO_LOCK(&vcp->obj);
654 SMB_CO_UNLOCK(&vcp->obj);
659 * Share implementation
662 * Allocate share structure and attach it to the given VC
663 * Connection expected to be locked on entry. Share will be returned
667 smb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec,
668 struct smb_cred *scred, struct smb_share **sspp)
670 struct smb_share *ssp;
671 struct thread *td = scred->scr_td;
672 struct ucred *cred = scred->scr_cred;
673 uid_t realuid = cred->cr_uid;
674 uid_t uid = shspec->owner;
675 gid_t gid = shspec->group;
678 isroot = smb_suser(cred) == 0;
680 * Only superuser can create shares with different uid and gid
682 if (uid != SMBM_ANY_OWNER && uid != realuid && !isroot)
684 if (gid != SMBM_ANY_GROUP && !groupmember(gid, cred) && !isroot)
686 error = smb_vc_lookupshare(vcp, shspec, scred, &ssp);
688 smb_share_put(ssp, scred);
691 if (uid == SMBM_ANY_OWNER)
693 if (gid == SMBM_ANY_GROUP)
694 gid = cred->cr_groups[0];
695 ssp = smb_zmalloc(sizeof(*ssp), M_SMBCONN, M_WAITOK);
696 smb_co_init(SSTOCP(ssp), SMBL_SHARE, "smbss", td);
697 ssp->obj.co_free = smb_share_free;
698 ssp->obj.co_gone = smb_share_gone;
699 smb_sl_init(&ssp->ss_stlock, "ssstlock");
700 ssp->ss_name = smb_strdup(shspec->name);
701 if (shspec->pass && shspec->pass[0])
702 ssp->ss_pass = smb_strdup(shspec->pass);
703 ssp->ss_type = shspec->stype;
704 ssp->ss_tid = SMB_TID_UNKNOWN;
707 ssp->ss_mode = shspec->rights & SMBM_MASK;
708 smb_co_addchild(VCTOCP(vcp), SSTOCP(ssp));
714 smb_share_free(struct smb_connobj *cp)
716 struct smb_share *ssp = CPTOSS(cp);
718 SMB_STRFREE(ssp->ss_name);
719 SMB_STRFREE(ssp->ss_pass);
720 smb_sl_destroy(&ssp->ss_stlock);
721 smb_co_done(SSTOCP(ssp));
722 free(ssp, M_SMBCONN);
726 smb_share_gone(struct smb_connobj *cp, struct smb_cred *scred)
728 struct smb_share *ssp = CPTOSS(cp);
730 smb_smb_treedisconnect(ssp, scred);
734 smb_share_ref(struct smb_share *ssp, struct thread *td)
736 smb_co_ref(SSTOCP(ssp), td);
740 smb_share_rele(struct smb_share *ssp, struct smb_cred *scred)
742 smb_co_rele(SSTOCP(ssp), scred);
746 smb_share_get(struct smb_share *ssp, int flags, struct smb_cred *scred)
748 return smb_co_get(SSTOCP(ssp), flags, scred);
752 smb_share_put(struct smb_share *ssp, struct smb_cred *scred)
754 smb_co_put(SSTOCP(ssp), scred);
758 smb_share_lock(struct smb_share *ssp, int flags, struct thread *td)
760 return smb_co_lock(SSTOCP(ssp), flags, td);
764 smb_share_unlock(struct smb_share *ssp, int flags, struct thread *td)
766 smb_co_unlock(SSTOCP(ssp), flags, td);
770 smb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode)
772 struct ucred *cred = scred->scr_cred;
774 if (smb_suser(cred) == 0 || cred->cr_uid == ssp->ss_uid)
777 if (!groupmember(ssp->ss_grp, cred))
779 return (ssp->ss_mode & mode) == mode ? 0 : EACCES;
783 smb_share_invalidate(struct smb_share *ssp)
785 ssp->ss_tid = SMB_TID_UNKNOWN;
789 smb_share_valid(struct smb_share *ssp)
791 return ssp->ss_tid != SMB_TID_UNKNOWN &&
792 ssp->ss_vcgenid == SSTOVC(ssp)->vc_genid;
796 smb_share_getpass(struct smb_share *ssp)
805 return smb_emptypass;
809 smb_share_getinfo(struct smb_share *ssp, struct smb_share_info *sip)
811 bzero(sip, sizeof(struct smb_share_info));
812 sip->itype = SMB_INFO_SHARE;
813 sip->usecount = ssp->obj.co_usecount;
814 sip->tid = ssp->ss_tid;
815 sip->type= ssp->ss_type;
816 sip->uid = ssp->ss_uid;
817 sip->gid = ssp->ss_grp;
818 sip->mode= ssp->ss_mode;
819 sip->flags = ssp->obj.co_flags;
820 snprintf(sip->sname, sizeof(sip->sname), "%s", ssp->ss_name);
825 * Dump an entire tree into sysctl call
828 smb_sysctl_treedump(SYSCTL_HANDLER_ARGS)
830 struct thread *td = req->td;
832 struct smb_cred scred;
834 struct smb_share *ssp;
835 struct smb_vc_info vci;
836 struct smb_share_info ssi;
839 KKASSERT(td->td_proc);
840 ucred = td->td_proc->p_ucred;
842 smb_makescred(&scred, td, ucred);
843 error = smb_sm_lockvclist(LK_SHARED, td);
846 SMBCO_FOREACH((struct smb_connobj*)vcp, &smb_vclist) {
847 error = smb_vc_lock(vcp, LK_SHARED, td);
850 smb_vc_getinfo(vcp, &vci);
851 error = SYSCTL_OUT(req, &vci, sizeof(struct smb_vc_info));
853 smb_vc_unlock(vcp, 0, td);
856 SMBCO_FOREACH((struct smb_connobj*)ssp, VCTOCP(vcp)) {
857 error = smb_share_lock(ssp, LK_SHARED, td);
862 smb_share_getinfo(ssp, &ssi);
863 smb_share_unlock(ssp, 0, td);
864 error = SYSCTL_OUT(req, &ssi, sizeof(struct smb_share_info));
868 smb_vc_unlock(vcp, 0, td);
873 itype = SMB_INFO_NONE;
874 error = SYSCTL_OUT(req, &itype, sizeof(itype));
876 smb_sm_unlockvclist(td);