1139823Simp/*- 275374Sbp * Copyright (c) 2000-2001 Boris Popov 375374Sbp * All rights reserved. 475374Sbp * 575374Sbp * Redistribution and use in source and binary forms, with or without 675374Sbp * modification, are permitted provided that the following conditions 775374Sbp * are met: 875374Sbp * 1. Redistributions of source code must retain the above copyright 975374Sbp * notice, this list of conditions and the following disclaimer. 1075374Sbp * 2. Redistributions in binary form must reproduce the above copyright 1175374Sbp * notice, this list of conditions and the following disclaimer in the 1275374Sbp * documentation and/or other materials provided with the distribution. 1375374Sbp * 1475374Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1575374Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1675374Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1775374Sbp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1875374Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1975374Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2075374Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2175374Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2275374Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2375374Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2475374Sbp * SUCH DAMAGE. 2575374Sbp */ 2675374Sbp 2775374Sbp/* 2875374Sbp * Connection engine. 2975374Sbp */ 3075374Sbp 31116189Sobrien#include <sys/cdefs.h> 32116189Sobrien__FBSDID("$FreeBSD$"); 33116189Sobrien 3475374Sbp#include <sys/param.h> 3575374Sbp#include <sys/systm.h> 3675374Sbp#include <sys/kernel.h> 3775374Sbp#include <sys/malloc.h> 38164033Srwatson#include <sys/priv.h> 3975374Sbp#include <sys/proc.h> 4075374Sbp#include <sys/lock.h> 4175374Sbp#include <sys/sysctl.h> 4275374Sbp#include <sys/socketvar.h> 4375374Sbp 4475374Sbp#include <sys/iconv.h> 4575374Sbp 4675374Sbp#include <netsmb/smb.h> 4775374Sbp#include <netsmb/smb_subr.h> 4875374Sbp#include <netsmb/smb_conn.h> 4975374Sbp#include <netsmb/smb_tran.h> 5075374Sbp#include <netsmb/smb_trantcp.h> 5175374Sbp 5275374Sbpstatic struct smb_connobj smb_vclist; 5375374Sbpstatic int smb_vcnext = 1; /* next unique id for VC */ 5475374Sbp 5575374SbpSYSCTL_NODE(_net, OID_AUTO, smb, CTLFLAG_RW, NULL, "SMB protocol"); 5675374Sbp 57227293Sedstatic MALLOC_DEFINE(M_SMBCONN, "smb_conn", "SMB connection"); 5875374Sbp 59176518Sattiliostatic void smb_co_init(struct smb_connobj *cp, int level, char *ilockname, 60184571Srwatson char *lockname); 6175374Sbpstatic void smb_co_done(struct smb_connobj *cp); 6275374Sbpstatic int smb_vc_disconnect(struct smb_vc *vcp); 6375374Sbpstatic void smb_vc_free(struct smb_connobj *cp); 6475374Sbpstatic void smb_vc_gone(struct smb_connobj *cp, struct smb_cred *scred); 6575374Sbpstatic smb_co_free_t smb_share_free; 6675374Sbpstatic smb_co_gone_t smb_share_gone; 6775374Sbp 6875374Sbpstatic int smb_sysctl_treedump(SYSCTL_HANDLER_ARGS); 6975374Sbp 7075374SbpSYSCTL_PROC(_net_smb, OID_AUTO, treedump, CTLFLAG_RD | CTLTYPE_OPAQUE, 7175374Sbp NULL, 0, smb_sysctl_treedump, "S,treedump", "Requester tree"); 7275374Sbp 7375374Sbpint 7475374Sbpsmb_sm_init(void) 7575374Sbp{ 7675374Sbp 77184571Srwatson smb_co_init(&smb_vclist, SMBL_SM, "smbsm ilock", "smbsm"); 78250237Sdavide sx_xlock(&smb_vclist.co_interlock); 79250237Sdavide smb_co_unlock(&smb_vclist); 80250237Sdavide sx_unlock(&smb_vclist.co_interlock); 8175374Sbp return 0; 8275374Sbp} 8375374Sbp 8475374Sbpint 8575374Sbpsmb_sm_done(void) 8675374Sbp{ 8775374Sbp 8875374Sbp /* XXX: hold the mutex */ 8975374Sbp if (smb_vclist.co_usecount > 1) { 9075374Sbp SMBERROR("%d connections still active\n", smb_vclist.co_usecount - 1); 9175374Sbp return EBUSY; 9275374Sbp } 9375374Sbp smb_co_done(&smb_vclist); 9475374Sbp return 0; 9575374Sbp} 9675374Sbp 9775374Sbpstatic int 98250237Sdavidesmb_sm_lockvclist(void) 9975374Sbp{ 100250237Sdavide int error; 10175374Sbp 102250237Sdavide sx_xlock(&smb_vclist.co_interlock); 103250237Sdavide error = smb_co_lock(&smb_vclist); 104250237Sdavide sx_unlock(&smb_vclist.co_interlock); 105250237Sdavide 106250237Sdavide return error; 10775374Sbp} 10875374Sbp 10975374Sbpstatic void 110184571Srwatsonsmb_sm_unlockvclist(void) 11175374Sbp{ 11275374Sbp 113250237Sdavide sx_xlock(&smb_vclist.co_interlock); 114250237Sdavide smb_co_unlock(&smb_vclist); 115250237Sdavide sx_unlock(&smb_vclist.co_interlock); 11675374Sbp} 11775374Sbp 11875374Sbpstatic int 11975374Sbpsmb_sm_lookupint(struct smb_vcspec *vcspec, struct smb_sharespec *shspec, 12075374Sbp struct smb_cred *scred, struct smb_vc **vcpp) 12175374Sbp{ 122132780Skan struct smb_connobj *scp; 12375374Sbp struct smb_vc *vcp; 12475374Sbp int exact = 1; 12575374Sbp int error; 12675374Sbp 12775374Sbp vcspec->shspec = shspec; 12875374Sbp error = ENOENT; 129132780Skan vcp = NULL; 130132780Skan SMBCO_FOREACH(scp, &smb_vclist) { 131132780Skan vcp = (struct smb_vc *)scp; 132250237Sdavide error = smb_vc_lock(vcp); 13375374Sbp if (error) 13475374Sbp continue; 13575374Sbp 136119376Smarcel if ((vcp->obj.co_flags & SMBV_PRIVATE) || 137119376Smarcel !CONNADDREQ(vcp->vc_paddr, vcspec->sap) || 138119376Smarcel strcmp(vcp->vc_username, vcspec->username) != 0) 139119376Smarcel goto err1; 140119376Smarcel if (vcspec->owner != SMBM_ANY_OWNER) { 141119376Smarcel if (vcp->vc_uid != vcspec->owner) 142119376Smarcel goto err1; 143119376Smarcel } else 144119376Smarcel exact = 0; 145119376Smarcel if (vcspec->group != SMBM_ANY_GROUP) { 146119376Smarcel if (vcp->vc_grp != vcspec->group) 147119376Smarcel goto err1; 148119376Smarcel } else 149119376Smarcel exact = 0; 150119376Smarcel if (vcspec->mode & SMBM_EXACT) { 151119376Smarcel if (!exact || (vcspec->mode & SMBM_MASK) != 152119376Smarcel vcp->vc_mode) 153119376Smarcel goto err1; 154119376Smarcel } 155119376Smarcel if (smb_vc_access(vcp, scred, vcspec->mode) != 0) 156119376Smarcel goto err1; 157119376Smarcel vcspec->ssp = NULL; 158119376Smarcel if (shspec) { 159119376Smarcel error = (int)smb_vc_lookupshare(vcp, shspec, scred, 160119376Smarcel &vcspec->ssp); 161119376Smarcel if (error) 162119376Smarcel goto fail; 163119376Smarcel } 164119376Smarcel error = 0; 165119376Smarcel break; 166119376Smarcel err1: 167119376Smarcel error = 1; 168119376Smarcel fail: 169250237Sdavide smb_vc_unlock(vcp); 17075374Sbp } 17175374Sbp if (vcp) { 17287192Sbp smb_vc_ref(vcp); 17375374Sbp *vcpp = vcp; 17475374Sbp } 175119376Smarcel return (error); 17675374Sbp} 17775374Sbp 17875374Sbpint 17975374Sbpsmb_sm_lookup(struct smb_vcspec *vcspec, struct smb_sharespec *shspec, 18075374Sbp struct smb_cred *scred, struct smb_vc **vcpp) 18175374Sbp{ 18275374Sbp struct smb_vc *vcp; 18375374Sbp struct smb_share *ssp = NULL; 18475374Sbp int error; 18575374Sbp 18675374Sbp *vcpp = vcp = NULL; 18775374Sbp 188250237Sdavide error = smb_sm_lockvclist(); 18975374Sbp if (error) 19075374Sbp return error; 19175374Sbp error = smb_sm_lookupint(vcspec, shspec, scred, vcpp); 19275374Sbp if (error == 0 || (vcspec->flags & SMBV_CREATE) == 0) { 193184571Srwatson smb_sm_unlockvclist(); 19475374Sbp return error; 19575374Sbp } 19675374Sbp error = smb_sm_lookupint(vcspec, NULL, scred, &vcp); 19775374Sbp if (error) { 19875374Sbp error = smb_vc_create(vcspec, scred, &vcp); 19975374Sbp if (error) 20075374Sbp goto out; 20175374Sbp error = smb_vc_connect(vcp, scred); 20275374Sbp if (error) 20375374Sbp goto out; 20475374Sbp } 20575374Sbp if (shspec == NULL) 20675374Sbp goto out; 20775374Sbp error = smb_share_create(vcp, shspec, scred, &ssp); 20875374Sbp if (error) 20975374Sbp goto out; 21075374Sbp error = smb_smb_treeconnect(ssp, scred); 21175374Sbp if (error == 0) 21275374Sbp vcspec->ssp = ssp; 21375374Sbp else 21475374Sbp smb_share_put(ssp, scred); 21575374Sbpout: 216184571Srwatson smb_sm_unlockvclist(); 21775374Sbp if (error == 0) 21875374Sbp *vcpp = vcp; 219184568Srwatson else if (vcp) { 220250237Sdavide smb_vc_lock(vcp); 22175374Sbp smb_vc_put(vcp, scred); 222184568Srwatson } 22375374Sbp return error; 22475374Sbp} 22575374Sbp 22675374Sbp/* 22775374Sbp * Common code for connection object 22875374Sbp */ 22975374Sbpstatic void 230184571Srwatsonsmb_co_init(struct smb_connobj *cp, int level, char *ilockname, char *lockname) 23175374Sbp{ 23275374Sbp SLIST_INIT(&cp->co_children); 233250237Sdavide sx_init_flags(&cp->co_interlock, ilockname, SX_RECURSE); 234250237Sdavide cv_init(&cp->co_lock, "smblock"); 235250237Sdavide cp->co_lockcnt = 0; 236250237Sdavide cp->co_locker = NULL; 23775374Sbp cp->co_level = level; 23875374Sbp cp->co_usecount = 1; 239250237Sdavide sx_xlock(&cp->co_interlock); 240250237Sdavide smb_co_lock(cp); 241250237Sdavide sx_unlock(&cp->co_interlock); 24275374Sbp} 24375374Sbp 24475374Sbpstatic void 24575374Sbpsmb_co_done(struct smb_connobj *cp) 24675374Sbp{ 247250237Sdavide 248250237Sdavide sx_destroy(&cp->co_interlock); 249250237Sdavide cv_destroy(&cp->co_lock); 250250237Sdavide cp->co_locker = NULL; 251250237Sdavide cp->co_flags = 0; 252250237Sdavide cp->co_lockcnt = 0; 25375374Sbp} 25475374Sbp 25575374Sbpstatic void 25675374Sbpsmb_co_gone(struct smb_connobj *cp, struct smb_cred *scred) 25775374Sbp{ 25875374Sbp struct smb_connobj *parent; 25975374Sbp 26075374Sbp if (cp->co_gone) 26175374Sbp cp->co_gone(cp, scred); 26275374Sbp parent = cp->co_parent; 26375374Sbp if (parent) { 264250237Sdavide sx_xlock(&parent->co_interlock); 265250237Sdavide smb_co_lock(parent); 266250237Sdavide sx_unlock(&parent->co_interlock); 26775374Sbp SLIST_REMOVE(&parent->co_children, cp, smb_connobj, co_next); 26875374Sbp smb_co_put(parent, scred); 26975374Sbp } 27075374Sbp if (cp->co_free) 27175374Sbp cp->co_free(cp); 27275374Sbp} 27375374Sbp 27475374Sbpvoid 27587192Sbpsmb_co_ref(struct smb_connobj *cp) 27675374Sbp{ 27775374Sbp 278250237Sdavide sx_xlock(&cp->co_interlock); 27975374Sbp cp->co_usecount++; 280250237Sdavide sx_unlock(&cp->co_interlock); 28175374Sbp} 28275374Sbp 28375374Sbpvoid 28475374Sbpsmb_co_rele(struct smb_connobj *cp, struct smb_cred *scred) 28575374Sbp{ 28675374Sbp 287250237Sdavide sx_xlock(&cp->co_interlock); 288250237Sdavide smb_co_unlock(cp); 28975374Sbp if (cp->co_usecount > 1) { 29075374Sbp cp->co_usecount--; 291250237Sdavide sx_unlock(&cp->co_interlock); 29275374Sbp return; 29375374Sbp } 29475374Sbp if (cp->co_usecount == 0) { 29575374Sbp SMBERROR("negative use_count for object %d", cp->co_level); 296250237Sdavide sx_unlock(&cp->co_interlock); 29775374Sbp return; 29875374Sbp } 29975374Sbp cp->co_usecount--; 30075374Sbp cp->co_flags |= SMBO_GONE; 301250237Sdavide sx_unlock(&cp->co_interlock); 30275374Sbp smb_co_gone(cp, scred); 30375374Sbp} 30475374Sbp 30575374Sbpint 306250237Sdavidesmb_co_get(struct smb_connobj *cp, struct smb_cred *scred) 30775374Sbp{ 30875374Sbp int error; 30975374Sbp 310250237Sdavide MPASS(sx_xholder(&cp->co_interlock) == curthread); 31175374Sbp cp->co_usecount++; 312250237Sdavide error = smb_co_lock(cp); 313250237Sdavide if (error) 31475374Sbp cp->co_usecount--; 315250237Sdavide return error; 31675374Sbp} 31775374Sbp 31875374Sbpvoid 31975374Sbpsmb_co_put(struct smb_connobj *cp, struct smb_cred *scred) 32075374Sbp{ 32175374Sbp 322250237Sdavide sx_xlock(&cp->co_interlock); 32375374Sbp if (cp->co_usecount > 1) { 32475374Sbp cp->co_usecount--; 32575374Sbp } else if (cp->co_usecount == 1) { 32675374Sbp cp->co_usecount--; 32775374Sbp cp->co_flags |= SMBO_GONE; 32875374Sbp } else { 32975374Sbp SMBERROR("negative usecount"); 33075374Sbp } 331250237Sdavide smb_co_unlock(cp); 332250237Sdavide sx_unlock(&cp->co_interlock); 33375374Sbp if ((cp->co_flags & SMBO_GONE) == 0) 33475374Sbp return; 33575374Sbp smb_co_gone(cp, scred); 33675374Sbp} 33775374Sbp 33875374Sbpint 339250237Sdavidesmb_co_lock(struct smb_connobj *cp) 34075374Sbp{ 34175374Sbp 342250237Sdavide MPASS(sx_xholder(&cp->co_interlock) == curthread); 343250237Sdavide for (;;) { 344250237Sdavide if (cp->co_flags & SMBO_GONE) 345250237Sdavide return EINVAL; 346250237Sdavide if (cp->co_locker == NULL) { 347250237Sdavide cp->co_locker = curthread; 348250237Sdavide return 0; 349250237Sdavide } 350250237Sdavide if (cp->co_locker == curthread) { 351250237Sdavide cp->co_lockcnt++; 352250237Sdavide return 0; 353250237Sdavide } 354250237Sdavide cv_wait(&cp->co_lock, &cp->co_interlock); 35575374Sbp } 35675374Sbp} 35775374Sbp 35875374Sbpvoid 359250237Sdavidesmb_co_unlock(struct smb_connobj *cp) 36075374Sbp{ 361250237Sdavide 362250237Sdavide MPASS(sx_xholder(&cp->co_interlock) == curthread); 363250237Sdavide MPASS(cp->co_locker == curthread); 364250237Sdavide if (cp->co_lockcnt != 0) { 365250237Sdavide cp->co_lockcnt--; 366250237Sdavide return; 367250237Sdavide } 368250237Sdavide cp->co_locker = NULL; 369250237Sdavide cv_signal(&cp->co_lock); 37075374Sbp} 37175374Sbp 37275374Sbpstatic void 37375374Sbpsmb_co_addchild(struct smb_connobj *parent, struct smb_connobj *child) 37475374Sbp{ 37575374Sbp 37687192Sbp smb_co_ref(parent); 37775374Sbp SLIST_INSERT_HEAD(&parent->co_children, child, co_next); 37875374Sbp child->co_parent = parent; 37975374Sbp} 38075374Sbp 38175374Sbp/* 38275374Sbp * Session implementation 38375374Sbp */ 38475374Sbp 38575374Sbpint 38675374Sbpsmb_vc_create(struct smb_vcspec *vcspec, 38775374Sbp struct smb_cred *scred, struct smb_vc **vcpp) 38875374Sbp{ 38975374Sbp struct smb_vc *vcp; 39075374Sbp struct ucred *cred = scred->scr_cred; 39175374Sbp uid_t uid = vcspec->owner; 39275374Sbp gid_t gid = vcspec->group; 39375374Sbp uid_t realuid = cred->cr_uid; 39475374Sbp char *domain = vcspec->domain; 39575374Sbp int error, isroot; 39675374Sbp 39775374Sbp isroot = smb_suser(cred) == 0; 39875374Sbp /* 39975374Sbp * Only superuser can create VCs with different uid and gid 40075374Sbp */ 40175374Sbp if (uid != SMBM_ANY_OWNER && uid != realuid && !isroot) 40275374Sbp return EPERM; 40375374Sbp if (gid != SMBM_ANY_GROUP && !groupmember(gid, cred) && !isroot) 40475374Sbp return EPERM; 40575374Sbp 406111119Simp vcp = smb_zmalloc(sizeof(*vcp), M_SMBCONN, M_WAITOK); 407184571Srwatson smb_co_init(VCTOCP(vcp), SMBL_VC, "smb_vc ilock", "smb_vc"); 40875374Sbp vcp->obj.co_free = smb_vc_free; 40975374Sbp vcp->obj.co_gone = smb_vc_gone; 41075374Sbp vcp->vc_number = smb_vcnext++; 41175374Sbp vcp->vc_timo = SMB_DEFRQTIMO; 41275374Sbp vcp->vc_smbuid = SMB_UID_UNKNOWN; 41375374Sbp vcp->vc_mode = vcspec->rights & SMBM_MASK; 41475374Sbp vcp->obj.co_flags = vcspec->flags & (SMBV_PRIVATE | SMBV_SINGLESHARE); 41575374Sbp vcp->vc_tdesc = &smb_tran_nbtcp_desc; 416124087Stjr vcp->vc_seqno = 0; 417124087Stjr vcp->vc_mackey = NULL; 418124087Stjr vcp->vc_mackeylen = 0; 41975374Sbp 42075374Sbp if (uid == SMBM_ANY_OWNER) 42175374Sbp uid = realuid; 42275374Sbp if (gid == SMBM_ANY_GROUP) 42375374Sbp gid = cred->cr_groups[0]; 42475374Sbp vcp->vc_uid = uid; 42575374Sbp vcp->vc_grp = gid; 42675374Sbp 42775374Sbp smb_sl_init(&vcp->vc_stlock, "vcstlock"); 428119376Smarcel error = ENOMEM; 42975374Sbp 430126425Srwatson vcp->vc_paddr = sodupsockaddr(vcspec->sap, M_WAITOK); 431119376Smarcel if (vcp->vc_paddr == NULL) 432119376Smarcel goto fail; 433126425Srwatson vcp->vc_laddr = sodupsockaddr(vcspec->lap, M_WAITOK); 434119376Smarcel if (vcp->vc_laddr == NULL) 435119376Smarcel goto fail; 436119376Smarcel vcp->vc_pass = smb_strdup(vcspec->pass); 437119376Smarcel if (vcp->vc_pass == NULL) 438119376Smarcel goto fail; 439119376Smarcel vcp->vc_domain = smb_strdup((domain && domain[0]) ? domain : 440119376Smarcel "NODOMAIN"); 441119376Smarcel if (vcp->vc_domain == NULL) 442119376Smarcel goto fail; 443119376Smarcel vcp->vc_srvname = smb_strdup(vcspec->srvname); 444119376Smarcel if (vcp->vc_srvname == NULL) 445119376Smarcel goto fail; 446119376Smarcel vcp->vc_username = smb_strdup(vcspec->username); 447119376Smarcel if (vcp->vc_username == NULL) 448119376Smarcel goto fail; 449119376Smarcel error = (int)iconv_open("tolower", vcspec->localcs, &vcp->vc_tolower); 450119376Smarcel if (error) 451119376Smarcel goto fail; 452119376Smarcel error = (int)iconv_open("toupper", vcspec->localcs, &vcp->vc_toupper); 453119376Smarcel if (error) 454119376Smarcel goto fail; 455119376Smarcel if (vcspec->servercs[0]) { 456119376Smarcel error = (int)iconv_open(vcspec->servercs, vcspec->localcs, 457227650Skevlo &vcp->vc_cp_toserver); 458119376Smarcel if (error) 459119376Smarcel goto fail; 460119376Smarcel error = (int)iconv_open(vcspec->localcs, vcspec->servercs, 461227650Skevlo &vcp->vc_cp_tolocal); 462119376Smarcel if (error) 463119376Smarcel goto fail; 464227650Skevlo vcp->vc_toserver = vcp->vc_cp_toserver; 465227650Skevlo vcp->vc_tolocal = vcp->vc_cp_tolocal; 466227650Skevlo iconv_add(ENCODING_UNICODE, ENCODING_UNICODE, SMB_UNICODE_NAME); 467227650Skevlo iconv_add(ENCODING_UNICODE, SMB_UNICODE_NAME, ENCODING_UNICODE); 468227650Skevlo error = (int)iconv_open(SMB_UNICODE_NAME, vcspec->localcs, 469227650Skevlo &vcp->vc_ucs_toserver); 470227650Skevlo if (!error) { 471227650Skevlo error = (int)iconv_open(vcspec->localcs, SMB_UNICODE_NAME, 472227650Skevlo &vcp->vc_ucs_tolocal); 473227650Skevlo } 474227650Skevlo if (error) { 475227650Skevlo if (vcp->vc_ucs_toserver) 476227650Skevlo iconv_close(vcp->vc_ucs_toserver); 477227650Skevlo vcp->vc_ucs_toserver = NULL; 478227650Skevlo vcp->vc_ucs_tolocal = NULL; 479227650Skevlo } 480119376Smarcel } 481119376Smarcel error = (int)smb_iod_create(vcp); 482119376Smarcel if (error) 483119376Smarcel goto fail; 484119376Smarcel *vcpp = vcp; 485119376Smarcel smb_co_addchild(&smb_vclist, VCTOCP(vcp)); 486119376Smarcel return (0); 48775374Sbp 488119376Smarcel fail: 489119376Smarcel smb_vc_put(vcp, scred); 490119376Smarcel return (error); 49175374Sbp} 49275374Sbp 49375374Sbpstatic void 49475374Sbpsmb_vc_free(struct smb_connobj *cp) 49575374Sbp{ 49675374Sbp struct smb_vc *vcp = CPTOVC(cp); 49775374Sbp 49875374Sbp if (vcp->vc_iod) 49975374Sbp smb_iod_destroy(vcp->vc_iod); 50075374Sbp SMB_STRFREE(vcp->vc_username); 50175374Sbp SMB_STRFREE(vcp->vc_srvname); 50275374Sbp SMB_STRFREE(vcp->vc_pass); 50375374Sbp SMB_STRFREE(vcp->vc_domain); 504124087Stjr if (vcp->vc_mackey) 505124087Stjr free(vcp->vc_mackey, M_SMBTEMP); 50675374Sbp if (vcp->vc_paddr) 50775374Sbp free(vcp->vc_paddr, M_SONAME); 50875374Sbp if (vcp->vc_laddr) 50975374Sbp free(vcp->vc_laddr, M_SONAME); 51075374Sbp if (vcp->vc_tolower) 51175374Sbp iconv_close(vcp->vc_tolower); 51275374Sbp if (vcp->vc_toupper) 51375374Sbp iconv_close(vcp->vc_toupper); 51475374Sbp if (vcp->vc_tolocal) 515227650Skevlo vcp->vc_tolocal = NULL; 51675374Sbp if (vcp->vc_toserver) 517227650Skevlo vcp->vc_toserver = NULL; 518227650Skevlo if (vcp->vc_cp_tolocal) 519227650Skevlo iconv_close(vcp->vc_cp_tolocal); 520227650Skevlo if (vcp->vc_cp_toserver) 521227650Skevlo iconv_close(vcp->vc_cp_toserver); 522227650Skevlo if (vcp->vc_ucs_tolocal) 523227650Skevlo iconv_close(vcp->vc_ucs_tolocal); 524227650Skevlo if (vcp->vc_ucs_toserver) 525227650Skevlo iconv_close(vcp->vc_ucs_toserver); 52675374Sbp smb_co_done(VCTOCP(vcp)); 52775374Sbp smb_sl_destroy(&vcp->vc_stlock); 52875374Sbp free(vcp, M_SMBCONN); 52975374Sbp} 53075374Sbp 53175374Sbp/* 53275374Sbp * Called when use count of VC dropped to zero. 53375374Sbp */ 53475374Sbpstatic void 53575374Sbpsmb_vc_gone(struct smb_connobj *cp, struct smb_cred *scred) 53675374Sbp{ 53775374Sbp struct smb_vc *vcp = CPTOVC(cp); 53875374Sbp 53975374Sbp smb_vc_disconnect(vcp); 54075374Sbp} 54175374Sbp 54275374Sbpvoid 54387192Sbpsmb_vc_ref(struct smb_vc *vcp) 54475374Sbp{ 54587192Sbp smb_co_ref(VCTOCP(vcp)); 54675374Sbp} 54775374Sbp 54875374Sbpvoid 54975374Sbpsmb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred) 55075374Sbp{ 55175374Sbp smb_co_rele(VCTOCP(vcp), scred); 55275374Sbp} 55375374Sbp 55475374Sbpint 555250237Sdavidesmb_vc_get(struct smb_vc *vcp, struct smb_cred *scred) 55675374Sbp{ 557250237Sdavide struct smb_connobj *cp; 558250237Sdavide int error; 559250237Sdavide 560250237Sdavide cp = VCTOCP(vcp); 561250237Sdavide sx_xlock(&cp->co_interlock); 562250237Sdavide error = smb_co_get(cp, scred); 563250237Sdavide sx_unlock(&cp->co_interlock); 564250237Sdavide return error; 56575374Sbp} 56675374Sbp 56775374Sbpvoid 56875374Sbpsmb_vc_put(struct smb_vc *vcp, struct smb_cred *scred) 56975374Sbp{ 57075374Sbp smb_co_put(VCTOCP(vcp), scred); 57175374Sbp} 57275374Sbp 57375374Sbpint 574250237Sdavidesmb_vc_lock(struct smb_vc *vcp) 57575374Sbp{ 576250237Sdavide struct smb_connobj *cp; 577250237Sdavide int error; 578250237Sdavide 579250237Sdavide cp = VCTOCP(vcp); 580250237Sdavide sx_xlock(&cp->co_interlock); 581250237Sdavide error = smb_co_lock(cp); 582250237Sdavide sx_unlock(&cp->co_interlock); 583250237Sdavide return error; 58475374Sbp} 58575374Sbp 58675374Sbpvoid 587250237Sdavidesmb_vc_unlock(struct smb_vc *vcp) 58875374Sbp{ 589250237Sdavide 590250237Sdavide struct smb_connobj *cp; 591250237Sdavide 592250237Sdavide cp = VCTOCP(vcp); 593250237Sdavide sx_xlock(&cp->co_interlock); 594250237Sdavide smb_co_unlock(cp); 595250237Sdavide sx_unlock(&cp->co_interlock); 59675374Sbp} 59775374Sbp 59875374Sbpint 59975374Sbpsmb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode) 60075374Sbp{ 60175374Sbp struct ucred *cred = scred->scr_cred; 60275374Sbp 60375374Sbp if (smb_suser(cred) == 0 || cred->cr_uid == vcp->vc_uid) 60475374Sbp return 0; 60575374Sbp mode >>= 3; 60675374Sbp if (!groupmember(vcp->vc_grp, cred)) 60775374Sbp mode >>= 3; 60875374Sbp return (vcp->vc_mode & mode) == mode ? 0 : EACCES; 60975374Sbp} 61075374Sbp 61175374Sbpstatic int 61275374Sbpsmb_vc_cmpshare(struct smb_share *ssp, struct smb_sharespec *dp) 61375374Sbp{ 61475374Sbp int exact = 1; 61575374Sbp 61675374Sbp if (strcmp(ssp->ss_name, dp->name) != 0) 61775374Sbp return 1; 61875374Sbp if (dp->owner != SMBM_ANY_OWNER) { 61975374Sbp if (ssp->ss_uid != dp->owner) 62075374Sbp return 1; 62175374Sbp } else 62275374Sbp exact = 0; 62375374Sbp if (dp->group != SMBM_ANY_GROUP) { 62475374Sbp if (ssp->ss_grp != dp->group) 62575374Sbp return 1; 62675374Sbp } else 62775374Sbp exact = 0; 62875374Sbp 62975374Sbp if (dp->mode & SMBM_EXACT) { 63075374Sbp if (!exact) 63175374Sbp return 1; 63275374Sbp return (dp->mode & SMBM_MASK) == ssp->ss_mode ? 0 : 1; 63375374Sbp } 63475374Sbp if (smb_share_access(ssp, dp->scred, dp->mode) != 0) 63575374Sbp return 1; 63675374Sbp return 0; 63775374Sbp} 63875374Sbp 63975374Sbp/* 64075374Sbp * Lookup share in the given VC. Share referenced and locked on return. 64175374Sbp * VC expected to be locked on entry and will be left locked on exit. 64275374Sbp */ 64375374Sbpint 64475374Sbpsmb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *dp, 64575374Sbp struct smb_cred *scred, struct smb_share **sspp) 64675374Sbp{ 647132780Skan struct smb_connobj *scp = NULL; 64875374Sbp struct smb_share *ssp = NULL; 64975374Sbp int error; 65075374Sbp 65175374Sbp *sspp = NULL; 65275374Sbp dp->scred = scred; 653132780Skan SMBCO_FOREACH(scp, VCTOCP(vcp)) { 654132780Skan ssp = (struct smb_share *)scp; 655250237Sdavide error = smb_share_lock(ssp); 65675374Sbp if (error) 65775374Sbp continue; 65875374Sbp if (smb_vc_cmpshare(ssp, dp) == 0) 65975374Sbp break; 660250237Sdavide smb_share_unlock(ssp); 66175374Sbp } 66275374Sbp if (ssp) { 66387192Sbp smb_share_ref(ssp); 66475374Sbp *sspp = ssp; 66575374Sbp error = 0; 66675374Sbp } else 66775374Sbp error = ENOENT; 66875374Sbp return error; 66975374Sbp} 67075374Sbp 67175374Sbpint 67275374Sbpsmb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred) 67375374Sbp{ 67475374Sbp 67575374Sbp return smb_iod_request(vcp->vc_iod, SMBIOD_EV_CONNECT | SMBIOD_EV_SYNC, NULL); 67675374Sbp} 67775374Sbp 67875374Sbp/* 67975374Sbp * Destroy VC to server, invalidate shares linked with it. 68075374Sbp * Transport should be locked on entry. 68175374Sbp */ 68275374Sbpint 68375374Sbpsmb_vc_disconnect(struct smb_vc *vcp) 68475374Sbp{ 68575374Sbp 686291655Srmacklem if (vcp->vc_iod != NULL) 687291655Srmacklem smb_iod_request(vcp->vc_iod, SMBIOD_EV_DISCONNECT | 688291655Srmacklem SMBIOD_EV_SYNC, NULL); 68975374Sbp return 0; 69075374Sbp} 69175374Sbp 69275374Sbpstatic char smb_emptypass[] = ""; 69375374Sbp 69475374Sbpconst char * 69575374Sbpsmb_vc_getpass(struct smb_vc *vcp) 69675374Sbp{ 69775374Sbp if (vcp->vc_pass) 69875374Sbp return vcp->vc_pass; 69975374Sbp return smb_emptypass; 70075374Sbp} 70175374Sbp 70275374Sbpstatic int 70375374Sbpsmb_vc_getinfo(struct smb_vc *vcp, struct smb_vc_info *vip) 70475374Sbp{ 70575374Sbp bzero(vip, sizeof(struct smb_vc_info)); 70675374Sbp vip->itype = SMB_INFO_VC; 70775374Sbp vip->usecount = vcp->obj.co_usecount; 70875374Sbp vip->uid = vcp->vc_uid; 70975374Sbp vip->gid = vcp->vc_grp; 71075374Sbp vip->mode = vcp->vc_mode; 71175374Sbp vip->flags = vcp->obj.co_flags; 71275374Sbp vip->sopt = vcp->vc_sopt; 71375374Sbp vip->iodstate = vcp->vc_iod->iod_state; 71475374Sbp bzero(&vip->sopt.sv_skey, sizeof(vip->sopt.sv_skey)); 71575374Sbp snprintf(vip->srvname, sizeof(vip->srvname), "%s", vcp->vc_srvname); 71675374Sbp snprintf(vip->vcname, sizeof(vip->vcname), "%s", vcp->vc_username); 71775374Sbp return 0; 71875374Sbp} 71975374Sbp 72075374Sbpu_short 72175374Sbpsmb_vc_nextmid(struct smb_vc *vcp) 72275374Sbp{ 72375374Sbp u_short r; 724250237Sdavide 725250237Sdavide sx_xlock(&vcp->obj.co_interlock); 72675374Sbp r = vcp->vc_mid++; 727250237Sdavide sx_unlock(&vcp->obj.co_interlock); 72875374Sbp return r; 72975374Sbp} 73075374Sbp 73175374Sbp/* 73275374Sbp * Share implementation 73375374Sbp */ 73475374Sbp/* 73575374Sbp * Allocate share structure and attach it to the given VC 73675374Sbp * Connection expected to be locked on entry. Share will be returned 73775374Sbp * in locked state. 73875374Sbp */ 73975374Sbpint 74075374Sbpsmb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec, 74175374Sbp struct smb_cred *scred, struct smb_share **sspp) 74275374Sbp{ 74375374Sbp struct smb_share *ssp; 74475374Sbp struct ucred *cred = scred->scr_cred; 74575374Sbp uid_t realuid = cred->cr_uid; 74675374Sbp uid_t uid = shspec->owner; 74775374Sbp gid_t gid = shspec->group; 74875374Sbp int error, isroot; 74975374Sbp 75075374Sbp isroot = smb_suser(cred) == 0; 75175374Sbp /* 75275374Sbp * Only superuser can create shares with different uid and gid 75375374Sbp */ 75475374Sbp if (uid != SMBM_ANY_OWNER && uid != realuid && !isroot) 75575374Sbp return EPERM; 75675374Sbp if (gid != SMBM_ANY_GROUP && !groupmember(gid, cred) && !isroot) 75775374Sbp return EPERM; 75875374Sbp error = smb_vc_lookupshare(vcp, shspec, scred, &ssp); 75975374Sbp if (!error) { 76075374Sbp smb_share_put(ssp, scred); 76175374Sbp return EEXIST; 76275374Sbp } 76375374Sbp if (uid == SMBM_ANY_OWNER) 76475374Sbp uid = realuid; 76575374Sbp if (gid == SMBM_ANY_GROUP) 76675374Sbp gid = cred->cr_groups[0]; 767111119Simp ssp = smb_zmalloc(sizeof(*ssp), M_SMBCONN, M_WAITOK); 768184571Srwatson smb_co_init(SSTOCP(ssp), SMBL_SHARE, "smbss ilock", "smbss"); 76975374Sbp ssp->obj.co_free = smb_share_free; 77075374Sbp ssp->obj.co_gone = smb_share_gone; 77175374Sbp smb_sl_init(&ssp->ss_stlock, "ssstlock"); 77275374Sbp ssp->ss_name = smb_strdup(shspec->name); 77375374Sbp if (shspec->pass && shspec->pass[0]) 77475374Sbp ssp->ss_pass = smb_strdup(shspec->pass); 77575374Sbp ssp->ss_type = shspec->stype; 77675374Sbp ssp->ss_tid = SMB_TID_UNKNOWN; 77775374Sbp ssp->ss_uid = uid; 77875374Sbp ssp->ss_grp = gid; 77975374Sbp ssp->ss_mode = shspec->rights & SMBM_MASK; 78075374Sbp smb_co_addchild(VCTOCP(vcp), SSTOCP(ssp)); 78175374Sbp *sspp = ssp; 78275374Sbp return 0; 78375374Sbp} 78475374Sbp 78575374Sbpstatic void 78675374Sbpsmb_share_free(struct smb_connobj *cp) 78775374Sbp{ 78875374Sbp struct smb_share *ssp = CPTOSS(cp); 78975374Sbp 79075374Sbp SMB_STRFREE(ssp->ss_name); 79175374Sbp SMB_STRFREE(ssp->ss_pass); 79275374Sbp smb_sl_destroy(&ssp->ss_stlock); 79375374Sbp smb_co_done(SSTOCP(ssp)); 79475374Sbp free(ssp, M_SMBCONN); 79575374Sbp} 79675374Sbp 79775374Sbpstatic void 79875374Sbpsmb_share_gone(struct smb_connobj *cp, struct smb_cred *scred) 79975374Sbp{ 80075374Sbp struct smb_share *ssp = CPTOSS(cp); 80175374Sbp 80275374Sbp smb_smb_treedisconnect(ssp, scred); 80375374Sbp} 80475374Sbp 80575374Sbpvoid 80687192Sbpsmb_share_ref(struct smb_share *ssp) 80775374Sbp{ 80887192Sbp smb_co_ref(SSTOCP(ssp)); 80975374Sbp} 81075374Sbp 81175374Sbpvoid 81275374Sbpsmb_share_rele(struct smb_share *ssp, struct smb_cred *scred) 81375374Sbp{ 81475374Sbp smb_co_rele(SSTOCP(ssp), scred); 81575374Sbp} 81675374Sbp 81775374Sbpint 818250237Sdavidesmb_share_get(struct smb_share *ssp, struct smb_cred *scred) 81975374Sbp{ 820250237Sdavide struct smb_connobj *cp = SSTOCP(ssp); 821250237Sdavide int error; 822250237Sdavide 823250237Sdavide sx_xlock(&cp->co_interlock); 824250237Sdavide error = smb_co_get(cp, scred); 825250237Sdavide sx_unlock(&cp->co_interlock); 826250237Sdavide return error; 82775374Sbp} 82875374Sbp 82975374Sbpvoid 83075374Sbpsmb_share_put(struct smb_share *ssp, struct smb_cred *scred) 83175374Sbp{ 832250237Sdavide 83375374Sbp smb_co_put(SSTOCP(ssp), scred); 83475374Sbp} 83575374Sbp 83675374Sbpint 837250237Sdavidesmb_share_lock(struct smb_share *ssp) 83875374Sbp{ 839250237Sdavide struct smb_connobj *cp; 840250237Sdavide int error; 841250237Sdavide 842250237Sdavide cp = SSTOCP(ssp); 843250237Sdavide sx_xlock(&cp->co_interlock); 844250237Sdavide error = smb_co_lock(cp); 845250237Sdavide sx_unlock(&cp->co_interlock); 846250237Sdavide return error; 84775374Sbp} 84875374Sbp 84975374Sbpvoid 850250237Sdavidesmb_share_unlock(struct smb_share *ssp) 85175374Sbp{ 852250237Sdavide struct smb_connobj *cp; 853250237Sdavide 854250237Sdavide cp = SSTOCP(ssp); 855250237Sdavide sx_xlock(&cp->co_interlock); 856250237Sdavide smb_co_unlock(cp); 857250237Sdavide sx_unlock(&cp->co_interlock); 85875374Sbp} 85975374Sbp 86075374Sbpint 86175374Sbpsmb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode) 86275374Sbp{ 86375374Sbp struct ucred *cred = scred->scr_cred; 86475374Sbp 86575374Sbp if (smb_suser(cred) == 0 || cred->cr_uid == ssp->ss_uid) 86675374Sbp return 0; 86775374Sbp mode >>= 3; 86875374Sbp if (!groupmember(ssp->ss_grp, cred)) 86975374Sbp mode >>= 3; 87075374Sbp return (ssp->ss_mode & mode) == mode ? 0 : EACCES; 87175374Sbp} 87275374Sbp 87375374Sbpvoid 87475374Sbpsmb_share_invalidate(struct smb_share *ssp) 87575374Sbp{ 87675374Sbp ssp->ss_tid = SMB_TID_UNKNOWN; 87775374Sbp} 87875374Sbp 87975374Sbpint 88075374Sbpsmb_share_valid(struct smb_share *ssp) 88175374Sbp{ 88275374Sbp return ssp->ss_tid != SMB_TID_UNKNOWN && 88375374Sbp ssp->ss_vcgenid == SSTOVC(ssp)->vc_genid; 88475374Sbp} 88575374Sbp 88675374Sbpconst char* 88775374Sbpsmb_share_getpass(struct smb_share *ssp) 88875374Sbp{ 88975374Sbp struct smb_vc *vcp; 89075374Sbp 89175374Sbp if (ssp->ss_pass) 89275374Sbp return ssp->ss_pass; 89375374Sbp vcp = SSTOVC(ssp); 89475374Sbp if (vcp->vc_pass) 89575374Sbp return vcp->vc_pass; 89675374Sbp return smb_emptypass; 89775374Sbp} 89875374Sbp 89975374Sbpstatic int 90075374Sbpsmb_share_getinfo(struct smb_share *ssp, struct smb_share_info *sip) 90175374Sbp{ 90275374Sbp bzero(sip, sizeof(struct smb_share_info)); 90375374Sbp sip->itype = SMB_INFO_SHARE; 90475374Sbp sip->usecount = ssp->obj.co_usecount; 90575374Sbp sip->tid = ssp->ss_tid; 90675374Sbp sip->type= ssp->ss_type; 90775374Sbp sip->uid = ssp->ss_uid; 90875374Sbp sip->gid = ssp->ss_grp; 90975374Sbp sip->mode= ssp->ss_mode; 91075374Sbp sip->flags = ssp->obj.co_flags; 91175374Sbp snprintf(sip->sname, sizeof(sip->sname), "%s", ssp->ss_name); 91275374Sbp return 0; 91375374Sbp} 91475374Sbp 91575374Sbp/* 91675374Sbp * Dump an entire tree into sysctl call 91775374Sbp */ 91875374Sbpstatic int 91975374Sbpsmb_sysctl_treedump(SYSCTL_HANDLER_ARGS) 92075374Sbp{ 921132780Skan struct smb_connobj *scp1, *scp2; 92275374Sbp struct smb_vc *vcp; 92375374Sbp struct smb_share *ssp; 92475374Sbp struct smb_vc_info vci; 92575374Sbp struct smb_share_info ssi; 92675374Sbp int error, itype; 92775374Sbp 928126253Struckman error = sysctl_wire_old_buffer(req, 0); 929126253Struckman if (error) 930126253Struckman return (error); 931250237Sdavide error = smb_sm_lockvclist(); 93275374Sbp if (error) 93375374Sbp return error; 934132780Skan SMBCO_FOREACH(scp1, &smb_vclist) { 935132780Skan vcp = (struct smb_vc *)scp1; 936250237Sdavide error = smb_vc_lock(vcp); 93775374Sbp if (error) 93875374Sbp continue; 93975374Sbp smb_vc_getinfo(vcp, &vci); 94075374Sbp error = SYSCTL_OUT(req, &vci, sizeof(struct smb_vc_info)); 94175374Sbp if (error) { 942250237Sdavide smb_vc_unlock(vcp); 94375374Sbp break; 94475374Sbp } 945132780Skan SMBCO_FOREACH(scp2, VCTOCP(vcp)) { 946132780Skan ssp = (struct smb_share *)scp2; 947250237Sdavide error = smb_share_lock(ssp); 94875374Sbp if (error) { 94975374Sbp error = 0; 95075374Sbp continue; 95175374Sbp } 95275374Sbp smb_share_getinfo(ssp, &ssi); 953250237Sdavide smb_share_unlock(ssp); 95475374Sbp error = SYSCTL_OUT(req, &ssi, sizeof(struct smb_share_info)); 95575374Sbp if (error) 95675374Sbp break; 95775374Sbp } 958250237Sdavide smb_vc_unlock(vcp); 95975374Sbp if (error) 96075374Sbp break; 96175374Sbp } 96275374Sbp if (!error) { 96375374Sbp itype = SMB_INFO_NONE; 96475374Sbp error = SYSCTL_OUT(req, &itype, sizeof(itype)); 96575374Sbp } 966184571Srwatson smb_sm_unlockvclist(); 96775374Sbp return error; 96875374Sbp} 969