1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * General Structures Layout 28 * ------------------------- 29 * 30 * This is a simplified diagram showing the relationship between most of the 31 * main structures. 32 * 33 * +-------------------+ 34 * | SMB_SERVER | 35 * +-------------------+ 36 * | 37 * | 38 * v 39 * +-------------------+ +-------------------+ +-------------------+ 40 * | SESSION |<----->| SESSION |......| SESSION | 41 * +-------------------+ +-------------------+ +-------------------+ 42 * | 43 * | 44 * v 45 * +-------------------+ +-------------------+ +-------------------+ 46 * | USER |<----->| USER |......| USER | 47 * +-------------------+ +-------------------+ +-------------------+ 48 * | 49 * | 50 * v 51 * +-------------------+ +-------------------+ +-------------------+ 52 * | TREE |<----->| TREE |......| TREE | 53 * +-------------------+ +-------------------+ +-------------------+ 54 * | | 55 * | | 56 * | v 57 * | +-------+ +-------+ +-------+ 58 * | | OFILE |<----->| OFILE |......| OFILE | 59 * | +-------+ +-------+ +-------+ 60 * | 61 * | 62 * v 63 * +-------+ +------+ +------+ 64 * | ODIR |<----->| ODIR |......| ODIR | 65 * +-------+ +------+ +------+ 66 * 67 * 68 * Module Interface Overview 69 * ------------------------- 70 * 71 * 72 * +===================================+ 73 * | smbd daemon | 74 * +===================================+ 75 * | | ^ 76 * | | | 77 * User | | | 78 * -----------|--------------|----------------|-------------------------------- 79 * Kernel | | | 80 * | | | 81 * | | | 82 * +=========|==============|================|=================+ 83 * | v v | | 84 * | +-----------+ +--------------------+ +------------------+ | 85 * | | IO | | Kernel Door Server | | User Door Servers| | 86 * | | Interface | | Interface | | Interface | | 87 * | +-----------+ +--------------------+ +------------------+ | 88 * | | | ^ ^ | 89 * | v v | | | +=========+ 90 * | +-----------------------------------+ | | | | 91 * | + SMB Server Management (this file) |<------------------| ZFS | 92 * | +-----------------------------------+ | | | | 93 * | | | | Module | 94 * | +-----------------------------------+ | | | | 95 * | + SMB Server Internal Layers |------+ | +=========+ 96 * | +-----------------------------------+ | 97 * | | 98 * | | 99 * +===========================================================+ 100 * 101 * 102 * Server State Machine 103 * -------------------- 104 * | 105 * | T0 106 * | 107 * v 108 * +-----------------------------+ 109 * | SMB_SERVER_STATE_CREATED | 110 * +-----------------------------+ 111 * | 112 * | T1 113 * | 114 * v 115 * +-----------------------------+ 116 * | SMB_SERVER_STATE_CONFIGURED | 117 * +-----------------------------+ 118 * | 119 * | T2 120 * | 121 * v 122 * +-----------------------------+ 123 * | SMB_SERVER_STATE_RUNNING | 124 * +-----------------------------+ 125 * | 126 * | T3 127 * | 128 * v 129 * +-----------------------------+ 130 * | SMB_SERVER_STATE_DELETING | 131 * +-----------------------------+ 132 * | 133 * | 134 * | 135 * v 136 * 137 * States 138 * ------ 139 * 140 * SMB_SERVER_STATE_CREATED 141 * 142 * This is the state of the server just after creation. 143 * 144 * SMB_SERVER_STATE_CONFIGURED 145 * 146 * The server has been configured. 147 * 148 * SMB_SERVER_STATE_RUNNING 149 * 150 * The server has been started. While in this state the threads listening on 151 * the sockets car be started. The smbd daemon does so through an Ioctl: 152 * 153 * smb_drv_ioctl(SMB_IOC_NBT_LISTEN) --> smb_server_nbt_listen() 154 * smb_drv_ioctl(SMB_IOC_TCP_LISTEN) --> smb_server_nbt_listen() 155 * 156 * When a client establishes a connection the thread listening leaves 157 * temporarily the kernel. While in user space it creates a thread for the 158 * new session. It then returns to kernel with the result of the thread 159 * creation. If the creation failed the new session context is destroyed 160 * before returning listening. 161 * 162 * The new created thread enters the kernel though an Ioctl: 163 * 164 * smb_drv_ioctl(SMB_IOC_NBT_RECEIVE) --> smb_server_nbt_receive() 165 * smb_drv_ioctl(SMB_IOC_TCP_RECEIVE) --> smb_server_tcp_receive() 166 * 167 * SMB_SERVER_STATE_STOPPING 168 * 169 * The threads listening on the NBT and TCP sockets are being terminated. 170 * 171 * 172 * Transitions 173 * ----------- 174 * 175 * Transition T0 176 * 177 * The daemon smbd triggers its creation by opening the smbsrv device. If 178 * the zone where the daemon lives doesn't have an smb server yet it is 179 * created. 180 * 181 * smb_drv_open() --> smb_server_create() 182 * 183 * Transition T1 184 * 185 * This transition occurs in smb_server_configure(). It is triggered by the 186 * daemon through an Ioctl. 187 * 188 * smb_drv_ioctl(SMB_IOC_CONFIG) --> smb_server_configure() 189 * 190 * Transition T2 191 * 192 * This transition occurs in smb_server_start(). It is triggered by the 193 * daemon through an Ioctl. 194 * 195 * smb_drv_ioctl(SMB_IOC_START) --> smb_server_start() 196 * 197 * Transition T3 198 * 199 * This transition occurs in smb_server_delete(). It is triggered by the 200 * daemon when closing the smbsrv device 201 * 202 * smb_drv_close() --> smb_server_delete() 203 * 204 * Comments 205 * -------- 206 * 207 * This files assumes that there will one SMB server per zone. For now the 208 * smb server works only in global zone. There's nothing in this file preventing 209 * an smb server from being created in a non global zone. That limitation is 210 * enforced in user space. 211 */ 212 213 #include <sys/strsubr.h> 214 #include <sys/cmn_err.h> 215 #include <sys/priv.h> 216 #include <sys/socketvar.h> 217 #include <sys/zone.h> 218 #include <smbsrv/smb_kproto.h> 219 #include <smbsrv/netbios.h> 220 #include <smbsrv/smb_incl.h> 221 #include <smbsrv/cifs.h> 222 #include <smbsrv/smb_fsops.h> 223 #include <smbsrv/smb_share.h> 224 #include <smbsrv/smb_door_svc.h> 225 #include <smbsrv/smb_kstat.h> 226 227 extern void smb_dispatch_kstat_init(void); 228 extern void smb_dispatch_kstat_fini(void); 229 extern void smb_reply_notify_change_request(smb_request_t *); 230 231 static int smb_server_kstat_init(smb_server_t *); 232 static void smb_server_kstat_fini(smb_server_t *); 233 static int smb_server_kstat_update_info(kstat_t *, int); 234 static void smb_server_timers(smb_thread_t *, void *); 235 static int smb_server_listen(smb_server_t *, smb_listener_daemon_t *, 236 in_port_t, int, int); 237 static int smb_server_lookup(smb_server_t **); 238 static void smb_server_release(smb_server_t *); 239 static void smb_server_store_cfg(smb_server_t *, smb_ioc_cfg_t *); 240 static void smb_server_stop(smb_server_t *); 241 static int smb_server_fsop_start(smb_server_t *); 242 static void smb_server_fsop_stop(smb_server_t *); 243 244 static void smb_server_disconnect_share(char *, smb_server_t *); 245 static void smb_server_thread_unexport(smb_thread_t *, void *); 246 247 static void smb_server_enum_private(smb_session_list_t *, smb_svcenum_t *); 248 static int smb_server_sesion_disconnect(smb_session_list_t *, const char *, 249 const char *); 250 static int smb_server_fclose(smb_session_list_t *, uint32_t); 251 252 static smb_llist_t smb_servers; 253 254 /* 255 * ***************************************************************************** 256 * **************** Functions called from the device interface ***************** 257 * ***************************************************************************** 258 * 259 * These functions typically have to determine the relevant smb server 260 * to which the call applies. 261 */ 262 263 /* 264 * smb_server_svc_init 265 * 266 * This function must be called from smb_drv_attach(). 267 */ 268 int 269 smb_server_svc_init(void) 270 { 271 int rc = 0; 272 273 while (rc == 0) { 274 if (rc = smb_mbc_init()) 275 continue; 276 if (rc = smb_vop_init()) 277 continue; 278 if (rc = smb_node_init()) 279 continue; 280 if (rc = smb_fem_init()) 281 continue; 282 if (rc = smb_user_init()) 283 continue; 284 if (rc = smb_notify_init()) 285 continue; 286 if (rc = smb_net_init()) 287 continue; 288 smb_llist_constructor(&smb_servers, sizeof (smb_server_t), 289 offsetof(smb_server_t, sv_lnd)); 290 return (0); 291 } 292 smb_net_fini(); 293 smb_notify_fini(); 294 smb_user_fini(); 295 smb_fem_fini(); 296 smb_node_fini(); 297 smb_vop_fini(); 298 smb_mbc_fini(); 299 return (rc); 300 } 301 302 /* 303 * smb_server_svc_fini 304 * 305 * This function must called from smb_drv_detach(). It will fail if servers 306 * still exist. 307 */ 308 int 309 smb_server_svc_fini(void) 310 { 311 int rc = EBUSY; 312 313 if (smb_llist_get_count(&smb_servers) == 0) { 314 smb_net_fini(); 315 smb_notify_fini(); 316 smb_user_fini(); 317 smb_fem_fini(); 318 smb_node_fini(); 319 smb_vop_fini(); 320 smb_mbc_fini(); 321 smb_llist_destructor(&smb_servers); 322 rc = 0; 323 } 324 return (rc); 325 } 326 327 /* 328 * smb_server_create 329 * 330 * This function will fail if there's already a server associated with the 331 * caller's zone. 332 */ 333 int 334 smb_server_create(void) 335 { 336 zoneid_t zid; 337 smb_server_t *sv; 338 339 zid = getzoneid(); 340 341 smb_llist_enter(&smb_servers, RW_WRITER); 342 sv = smb_llist_head(&smb_servers); 343 while (sv) { 344 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 345 if (sv->sv_zid == zid) { 346 smb_llist_exit(&smb_servers); 347 return (EPERM); 348 } 349 sv = smb_llist_next(&smb_servers, sv); 350 } 351 352 sv = kmem_zalloc(sizeof (smb_server_t), KM_NOSLEEP); 353 if (sv == NULL) { 354 smb_llist_exit(&smb_servers); 355 return (ENOMEM); 356 } 357 358 smb_llist_constructor(&sv->sv_vfs_list, sizeof (smb_vfs_t), 359 offsetof(smb_vfs_t, sv_lnd)); 360 361 smb_slist_constructor(&sv->sv_unexport_list, sizeof (smb_unexport_t), 362 offsetof(smb_unexport_t, ux_lnd)); 363 364 smb_session_list_constructor(&sv->sv_nbt_daemon.ld_session_list); 365 smb_session_list_constructor(&sv->sv_tcp_daemon.ld_session_list); 366 367 sv->si_cache_unexport = kmem_cache_create("smb_unexport_cache", 368 sizeof (smb_unexport_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 369 sv->si_cache_vfs = kmem_cache_create("smb_vfs_cache", 370 sizeof (smb_vfs_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 371 sv->si_cache_request = kmem_cache_create("smb_request_cache", 372 sizeof (smb_request_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 373 sv->si_cache_session = kmem_cache_create("smb_session_cache", 374 sizeof (smb_session_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 375 sv->si_cache_user = kmem_cache_create("smb_user_cache", 376 sizeof (smb_user_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 377 sv->si_cache_tree = kmem_cache_create("smb_tree_cache", 378 sizeof (smb_tree_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 379 sv->si_cache_ofile = kmem_cache_create("smb_ofile_cache", 380 sizeof (smb_ofile_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 381 sv->si_cache_odir = kmem_cache_create("smb_odir_cache", 382 sizeof (smb_odir_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 383 384 smb_thread_init(&sv->si_thread_timers, 385 "smb_timers", smb_server_timers, sv, 386 NULL, NULL); 387 388 smb_thread_init(&sv->si_thread_unexport, "smb_thread_unexport", 389 smb_server_thread_unexport, sv, NULL, NULL); 390 391 sv->sv_pid = curproc->p_pid; 392 393 smb_kdoor_clnt_init(); 394 smb_opipe_door_init(); 395 (void) smb_server_kstat_init(sv); 396 397 mutex_init(&sv->sv_mutex, NULL, MUTEX_DEFAULT, NULL); 398 cv_init(&sv->sv_cv, NULL, CV_DEFAULT, NULL); 399 sv->sv_state = SMB_SERVER_STATE_CREATED; 400 sv->sv_magic = SMB_SERVER_MAGIC; 401 sv->sv_zid = zid; 402 403 smb_llist_insert_tail(&smb_servers, sv); 404 smb_llist_exit(&smb_servers); 405 return (0); 406 } 407 408 /* 409 * smb_server_delete 410 * 411 * This function will delete the server passed in. It will make sure that all 412 * activity associated that server has ceased before destroying it. 413 */ 414 int 415 smb_server_delete(void) 416 { 417 smb_server_t *sv; 418 smb_unexport_t *ux; 419 int rc; 420 421 rc = smb_server_lookup(&sv); 422 if (rc != 0) 423 return (rc); 424 425 mutex_enter(&sv->sv_mutex); 426 switch (sv->sv_state) { 427 case SMB_SERVER_STATE_RUNNING: 428 { 429 boolean_t nbt = B_FALSE; 430 boolean_t tcp = B_FALSE; 431 432 if (sv->sv_nbt_daemon.ld_kth) { 433 tsignal(sv->sv_nbt_daemon.ld_kth, SIGINT); 434 nbt = B_TRUE; 435 } 436 if (sv->sv_tcp_daemon.ld_kth) { 437 tsignal(sv->sv_tcp_daemon.ld_kth, SIGINT); 438 tcp = B_TRUE; 439 } 440 sv->sv_state = SMB_SERVER_STATE_DELETING; 441 mutex_exit(&sv->sv_mutex); 442 if (nbt) 443 thread_join(sv->sv_nbt_daemon.ld_ktdid); 444 if (tcp) 445 thread_join(sv->sv_tcp_daemon.ld_ktdid); 446 mutex_enter(&sv->sv_mutex); 447 break; 448 } 449 case SMB_SERVER_STATE_CONFIGURED: 450 case SMB_SERVER_STATE_CREATED: 451 sv->sv_state = SMB_SERVER_STATE_DELETING; 452 break; 453 default: 454 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 455 mutex_exit(&sv->sv_mutex); 456 smb_server_release(sv); 457 return (ENOTTY); 458 } 459 460 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 461 462 sv->sv_refcnt--; 463 while (sv->sv_refcnt) 464 cv_wait(&sv->sv_cv, &sv->sv_mutex); 465 466 mutex_exit(&sv->sv_mutex); 467 468 smb_llist_enter(&smb_servers, RW_WRITER); 469 smb_llist_remove(&smb_servers, sv); 470 smb_llist_exit(&smb_servers); 471 472 smb_server_stop(sv); 473 rw_destroy(&sv->sv_cfg_lock); 474 smb_opipe_door_fini(); 475 smb_kdoor_clnt_fini(); 476 smb_server_kstat_fini(sv); 477 smb_llist_destructor(&sv->sv_vfs_list); 478 479 while ((ux = list_head(&sv->sv_unexport_list.sl_list)) != NULL) { 480 smb_slist_remove(&sv->sv_unexport_list, ux); 481 kmem_cache_free(sv->si_cache_unexport, ux); 482 } 483 smb_slist_destructor(&sv->sv_unexport_list); 484 485 kmem_cache_destroy(sv->si_cache_unexport); 486 kmem_cache_destroy(sv->si_cache_vfs); 487 kmem_cache_destroy(sv->si_cache_request); 488 kmem_cache_destroy(sv->si_cache_session); 489 kmem_cache_destroy(sv->si_cache_user); 490 kmem_cache_destroy(sv->si_cache_tree); 491 kmem_cache_destroy(sv->si_cache_ofile); 492 kmem_cache_destroy(sv->si_cache_odir); 493 494 smb_thread_destroy(&sv->si_thread_timers); 495 smb_thread_destroy(&sv->si_thread_unexport); 496 mutex_destroy(&sv->sv_mutex); 497 cv_destroy(&sv->sv_cv); 498 sv->sv_magic = 0; 499 kmem_free(sv, sizeof (smb_server_t)); 500 501 return (0); 502 } 503 504 /* 505 * smb_server_configure 506 */ 507 int 508 smb_server_configure(smb_ioc_cfg_t *ioc) 509 { 510 int rc = 0; 511 smb_server_t *sv; 512 513 rc = smb_server_lookup(&sv); 514 if (rc) 515 return (rc); 516 517 mutex_enter(&sv->sv_mutex); 518 switch (sv->sv_state) { 519 case SMB_SERVER_STATE_CREATED: 520 smb_server_store_cfg(sv, ioc); 521 sv->sv_state = SMB_SERVER_STATE_CONFIGURED; 522 break; 523 524 case SMB_SERVER_STATE_CONFIGURED: 525 smb_server_store_cfg(sv, ioc); 526 break; 527 528 case SMB_SERVER_STATE_RUNNING: 529 rw_enter(&sv->sv_cfg_lock, RW_WRITER); 530 smb_server_store_cfg(sv, ioc); 531 rw_exit(&sv->sv_cfg_lock); 532 break; 533 534 default: 535 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 536 rc = EFAULT; 537 break; 538 } 539 mutex_exit(&sv->sv_mutex); 540 541 smb_server_release(sv); 542 543 return (rc); 544 } 545 546 /* 547 * smb_server_start 548 */ 549 int 550 smb_server_start(smb_ioc_start_t *ioc) 551 { 552 int rc = 0; 553 smb_server_t *sv; 554 555 rc = smb_server_lookup(&sv); 556 if (rc) 557 return (rc); 558 559 mutex_enter(&sv->sv_mutex); 560 switch (sv->sv_state) { 561 case SMB_SERVER_STATE_CONFIGURED: 562 563 sv->sv_thread_pool = taskq_create("smb_workers", 564 sv->sv_cfg.skc_maxworkers, SMB_WORKER_PRIORITY, 565 sv->sv_cfg.skc_maxworkers, INT_MAX, 566 TASKQ_DYNAMIC|TASKQ_PREPOPULATE); 567 568 sv->sv_session = smb_session_create(NULL, 0, sv, 0); 569 570 if (sv->sv_thread_pool == NULL || sv->sv_session == NULL) { 571 rc = ENOMEM; 572 break; 573 } 574 575 if (rc = smb_server_fsop_start(sv)) 576 break; 577 ASSERT(sv->sv_lmshrd == NULL); 578 sv->sv_lmshrd = smb_kshare_init(ioc->lmshrd); 579 if (sv->sv_lmshrd == NULL) 580 break; 581 if (rc = smb_kdoor_clnt_open(ioc->udoor)) 582 break; 583 if (rc = smb_thread_start(&sv->si_thread_timers)) 584 break; 585 if (rc = smb_thread_start(&sv->si_thread_unexport)) 586 break; 587 if (rc = smb_opipe_door_open(ioc->opipe)) { 588 cmn_err(CE_WARN, "Cannot open opipe door"); 589 break; 590 } 591 592 (void) oem_language_set("english"); 593 594 sv->sv_state = SMB_SERVER_STATE_RUNNING; 595 mutex_exit(&sv->sv_mutex); 596 smb_server_release(sv); 597 return (0); 598 default: 599 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 600 (sv->sv_state == SMB_SERVER_STATE_RUNNING) || 601 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 602 mutex_exit(&sv->sv_mutex); 603 smb_server_release(sv); 604 return (ENOTTY); 605 } 606 607 smb_server_stop(sv); 608 mutex_exit(&sv->sv_mutex); 609 smb_server_release(sv); 610 return (rc); 611 } 612 613 /* 614 * smb_server_nbt_listen: SMB-over-NetBIOS service 615 * 616 * Traditional SMB service over NetBIOS (port 139), which requires 617 * that a NetBIOS session be established. 618 */ 619 int 620 smb_server_nbt_listen(smb_ioc_listen_t *ioc) 621 { 622 smb_server_t *sv; 623 int rc; 624 625 rc = smb_server_lookup(&sv); 626 if (rc) 627 return (rc); 628 629 mutex_enter(&sv->sv_mutex); 630 switch (sv->sv_state) { 631 case SMB_SERVER_STATE_RUNNING: 632 if ((sv->sv_nbt_daemon.ld_kth != NULL) && 633 (sv->sv_nbt_daemon.ld_kth != curthread)) { 634 mutex_exit(&sv->sv_mutex); 635 smb_server_release(sv); 636 return (EACCES); 637 } else { 638 sv->sv_nbt_daemon.ld_kth = curthread; 639 sv->sv_nbt_daemon.ld_ktdid = curthread->t_did; 640 } 641 break; 642 default: 643 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 644 (sv->sv_state == SMB_SERVER_STATE_CONFIGURED) || 645 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 646 mutex_exit(&sv->sv_mutex); 647 smb_server_release(sv); 648 return (EFAULT); 649 } 650 mutex_exit(&sv->sv_mutex); 651 652 /* 653 * netbios must be ipv4 654 */ 655 rc = smb_server_listen(sv, &sv->sv_nbt_daemon, SSN_SRVC_TCP_PORT, 656 AF_INET, ioc->error); 657 658 if (rc) { 659 mutex_enter(&sv->sv_mutex); 660 sv->sv_nbt_daemon.ld_kth = NULL; 661 mutex_exit(&sv->sv_mutex); 662 } 663 664 smb_server_release(sv); 665 return (rc); 666 } 667 668 int 669 smb_server_tcp_listen(smb_ioc_listen_t *ioc) 670 { 671 smb_server_t *sv; 672 int rc; 673 674 rc = smb_server_lookup(&sv); 675 if (rc) 676 return (rc); 677 678 mutex_enter(&sv->sv_mutex); 679 switch (sv->sv_state) { 680 case SMB_SERVER_STATE_RUNNING: 681 if ((sv->sv_tcp_daemon.ld_kth) && 682 (sv->sv_tcp_daemon.ld_kth != curthread)) { 683 mutex_exit(&sv->sv_mutex); 684 smb_server_release(sv); 685 return (EACCES); 686 } else { 687 sv->sv_tcp_daemon.ld_kth = curthread; 688 sv->sv_tcp_daemon.ld_ktdid = curthread->t_did; 689 } 690 break; 691 default: 692 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 693 (sv->sv_state == SMB_SERVER_STATE_CONFIGURED) || 694 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 695 mutex_exit(&sv->sv_mutex); 696 smb_server_release(sv); 697 return (EFAULT); 698 } 699 mutex_exit(&sv->sv_mutex); 700 701 if (sv->sv_cfg.skc_ipv6_enable) 702 rc = smb_server_listen(sv, &sv->sv_tcp_daemon, 703 SMB_SRVC_TCP_PORT, AF_INET6, ioc->error); 704 else 705 rc = smb_server_listen(sv, &sv->sv_tcp_daemon, 706 SMB_SRVC_TCP_PORT, AF_INET, ioc->error); 707 if (rc) { 708 mutex_enter(&sv->sv_mutex); 709 sv->sv_tcp_daemon.ld_kth = NULL; 710 mutex_exit(&sv->sv_mutex); 711 } 712 713 smb_server_release(sv); 714 return (rc); 715 } 716 717 /* 718 * smb_server_nbt_receive 719 */ 720 int 721 smb_server_nbt_receive(void) 722 { 723 int rc; 724 smb_server_t *sv; 725 726 if ((rc = smb_server_lookup(&sv)) == 0) { 727 rc = smb_session_daemon(&sv->sv_nbt_daemon.ld_session_list); 728 smb_server_release(sv); 729 } 730 731 return (rc); 732 } 733 734 /* 735 * smb_server_tcp_receive 736 */ 737 int 738 smb_server_tcp_receive(void) 739 { 740 int rc; 741 smb_server_t *sv; 742 743 if ((rc = smb_server_lookup(&sv)) == 0) { 744 rc = smb_session_daemon(&sv->sv_tcp_daemon.ld_session_list); 745 smb_server_release(sv); 746 } 747 748 return (rc); 749 } 750 751 int 752 smb_server_set_gmtoff(smb_ioc_gmt_t *ioc) 753 { 754 int rc; 755 smb_server_t *sv; 756 757 if ((rc = smb_server_lookup(&sv)) == 0) { 758 sv->si_gmtoff = ioc->offset; 759 smb_server_release(sv); 760 } 761 762 return (rc); 763 } 764 765 int 766 smb_server_numopen(smb_ioc_opennum_t *ioc) 767 { 768 smb_server_t *sv; 769 int rc; 770 771 if ((rc = smb_server_lookup(&sv)) == 0) { 772 ioc->open_users = sv->sv_open_users; 773 ioc->open_trees = sv->sv_open_trees; 774 ioc->open_files = sv->sv_open_files; 775 smb_server_release(sv); 776 } 777 return (rc); 778 } 779 780 /* 781 * Enumerate objects within the server. The svcenum provides the 782 * enumeration context, i.e. what the caller want to get back. 783 */ 784 int 785 smb_server_enum(smb_ioc_svcenum_t *ioc) 786 { 787 smb_svcenum_t *svcenum = &ioc->svcenum; 788 smb_server_t *sv; 789 smb_session_list_t *se; 790 int rc; 791 792 switch (svcenum->se_type) { 793 case SMB_SVCENUM_TYPE_USER: 794 case SMB_SVCENUM_TYPE_TREE: 795 case SMB_SVCENUM_TYPE_FILE: 796 break; 797 default: 798 return (EINVAL); 799 } 800 801 if ((rc = smb_server_lookup(&sv)) != 0) 802 return (rc); 803 804 svcenum->se_bavail = svcenum->se_buflen; 805 svcenum->se_bused = 0; 806 svcenum->se_nitems = 0; 807 808 se = &sv->sv_nbt_daemon.ld_session_list; 809 smb_server_enum_private(se, svcenum); 810 811 se = &sv->sv_tcp_daemon.ld_session_list; 812 smb_server_enum_private(se, svcenum); 813 814 smb_server_release(sv); 815 return (0); 816 } 817 818 /* 819 * Look for sessions to disconnect by client and user name. 820 */ 821 int 822 smb_server_session_close(smb_ioc_session_t *ioc) 823 { 824 smb_session_list_t *se; 825 smb_server_t *sv; 826 int nbt_cnt; 827 int tcp_cnt; 828 int rc; 829 830 if ((rc = smb_server_lookup(&sv)) != 0) 831 return (rc); 832 833 se = &sv->sv_nbt_daemon.ld_session_list; 834 nbt_cnt = smb_server_sesion_disconnect(se, ioc->client, ioc->username); 835 836 se = &sv->sv_tcp_daemon.ld_session_list; 837 tcp_cnt = smb_server_sesion_disconnect(se, ioc->client, ioc->username); 838 839 smb_server_release(sv); 840 841 if ((nbt_cnt == 0) && (tcp_cnt == 0)) 842 return (ENOENT); 843 return (0); 844 } 845 846 /* 847 * Close a file by uniqid. 848 */ 849 int 850 smb_server_file_close(smb_ioc_fileid_t *ioc) 851 { 852 uint32_t uniqid = ioc->uniqid; 853 smb_session_list_t *se; 854 smb_server_t *sv; 855 int rc; 856 857 if ((rc = smb_server_lookup(&sv)) != 0) 858 return (rc); 859 860 se = &sv->sv_nbt_daemon.ld_session_list; 861 rc = smb_server_fclose(se, uniqid); 862 863 if (rc == ENOENT) { 864 se = &sv->sv_tcp_daemon.ld_session_list; 865 rc = smb_server_fclose(se, uniqid); 866 } 867 868 smb_server_release(sv); 869 return (rc); 870 } 871 872 /* 873 * These functions determine the relevant smb server to which the call apply. 874 */ 875 876 uint32_t 877 smb_server_get_session_count(void) 878 { 879 smb_server_t *sv; 880 uint32_t counter = 0; 881 882 if (smb_server_lookup(&sv)) 883 return (0); 884 885 rw_enter(&sv->sv_nbt_daemon.ld_session_list.se_lock, RW_READER); 886 counter = sv->sv_nbt_daemon.ld_session_list.se_act.count; 887 rw_exit(&sv->sv_nbt_daemon.ld_session_list.se_lock); 888 rw_enter(&sv->sv_tcp_daemon.ld_session_list.se_lock, RW_READER); 889 counter += sv->sv_tcp_daemon.ld_session_list.se_act.count; 890 rw_exit(&sv->sv_tcp_daemon.ld_session_list.se_lock); 891 892 smb_server_release(sv); 893 894 return (counter); 895 } 896 897 /* 898 * smb_server_disconnect_share 899 * 900 * Disconnects the specified share. This function should be called after the 901 * share passed in has been made unavailable by the "share manager". 902 */ 903 static void 904 smb_server_disconnect_share(char *sharename, smb_server_t *sv) 905 { 906 smb_session_disconnect_share(&sv->sv_nbt_daemon.ld_session_list, 907 sharename); 908 smb_session_disconnect_share(&sv->sv_tcp_daemon.ld_session_list, 909 sharename); 910 } 911 912 /* 913 * smb_server_share_export() 914 * 915 * This function handles kernel processing at share enable time. 916 * 917 * At share-enable time (LMSHRD_ADD), the file system corresponding to 918 * the share is checked for characteristics that are required for SMB 919 * sharing. If this check passes, then a hold is taken on the root vnode 920 * of the file system (or a reference count on the corresponding smb_vfs_t 921 * is bumped), preventing an unmount. (See smb_vfs_hold()). 922 */ 923 924 int 925 smb_server_share_export(smb_ioc_share_t *ioc) 926 { 927 smb_server_t *sv; 928 int error = 0; 929 smb_node_t *fnode = NULL; 930 smb_node_t *dnode; 931 char last_comp[MAXNAMELEN]; 932 smb_request_t *sr; 933 934 if (smb_server_lookup(&sv)) 935 return (EINVAL); 936 937 mutex_enter(&sv->sv_mutex); 938 switch (sv->sv_state) { 939 case SMB_SERVER_STATE_RUNNING: 940 break; 941 default: 942 mutex_exit(&sv->sv_mutex); 943 return (ENOTACTIVE); 944 } 945 mutex_exit(&sv->sv_mutex); 946 947 sr = smb_request_alloc(sv->sv_session, 0); 948 if (sr == NULL) { 949 smb_server_release(sv); 950 return (ENOMEM); 951 } 952 953 sr->user_cr = kcred; 954 955 error = smb_pathname_reduce(sr, kcred, ioc->path, 956 NULL, NULL, &dnode, last_comp); 957 958 if (error) { 959 smb_request_free(sr); 960 smb_server_release(sv); 961 return (error); 962 } 963 964 error = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS, 965 sv->si_root_smb_node, dnode, last_comp, &fnode); 966 967 smb_node_release(dnode); 968 969 if (error) { 970 smb_request_free(sr); 971 smb_server_release(sv); 972 return (error); 973 } 974 975 ASSERT(fnode->vp && fnode->vp->v_vfsp); 976 977 #ifdef SMB_ENFORCE_NODEV 978 if (vfs_optionisset(fnode->vp->v_vfsp, MNTOPT_NODEVICES, NULL) == 0) { 979 smb_node_release(fnode); 980 smb_request_free(sr); 981 smb_server_release(sv); 982 return (EINVAL); 983 } 984 #endif /* SMB_ENFORCE_NODEV */ 985 986 if (!smb_vfs_hold(sv, fnode->vp->v_vfsp)) 987 error = ENOMEM; 988 989 /* 990 * The refcount on the smb_vfs has been incremented. 991 * If it wasn't already, a hold has also been taken 992 * on the root vnode of the file system. 993 */ 994 995 smb_node_release(fnode); 996 smb_request_free(sr); 997 smb_server_release(sv); 998 return (error); 999 } 1000 1001 /* 1002 * smb_server_share_unexport() 1003 * 1004 * This function is invoked when a share is disabled to disconnect trees 1005 * and close files. Cleaning up may involve VOP and/or VFS calls, which 1006 * may conflict/deadlock with stuck threads if something is amiss with the 1007 * file system. Queueing the request for asynchronous processing allows the 1008 * call to return immediately so that, if the unshare is being done in the 1009 * context of a forced unmount, the forced unmount will always be able to 1010 * proceed (unblocking stuck I/O and eventually allowing all blocked unshare 1011 * processes to complete). 1012 * 1013 * The path lookup to find the root vnode of the VFS in question and the 1014 * release of this vnode are done synchronously prior to any associated 1015 * unmount. Doing these asynchronous to an associated unmount could run 1016 * the risk of a spurious EBUSY for a standard unmount or an EIO during 1017 * the path lookup due to a forced unmount finishing first. 1018 */ 1019 1020 int 1021 smb_server_share_unexport(smb_ioc_share_t *ioc) 1022 { 1023 smb_server_t *sv; 1024 smb_request_t *sr; 1025 smb_unexport_t *ux; 1026 smb_node_t *fnode = NULL; 1027 smb_node_t *dnode; 1028 char last_comp[MAXNAMELEN]; 1029 int rc; 1030 1031 if ((rc = smb_server_lookup(&sv))) 1032 return (rc); 1033 1034 mutex_enter(&sv->sv_mutex); 1035 switch (sv->sv_state) { 1036 case SMB_SERVER_STATE_RUNNING: 1037 break; 1038 default: 1039 mutex_exit(&sv->sv_mutex); 1040 return (ENOTACTIVE); 1041 } 1042 mutex_exit(&sv->sv_mutex); 1043 1044 sr = smb_request_alloc(sv->sv_session, 0); 1045 1046 if (sr == NULL) { 1047 smb_server_release(sv); 1048 return (ENOMEM); 1049 } 1050 1051 sr->user_cr = kcred; 1052 1053 rc = smb_pathname_reduce(sr, kcred, ioc->path, NULL, NULL, 1054 &dnode, last_comp); 1055 1056 if (rc) { 1057 smb_request_free(sr); 1058 smb_server_release(sv); 1059 return (rc); 1060 } 1061 1062 rc = smb_fsop_lookup(sr, kcred, SMB_FOLLOW_LINKS, sv->si_root_smb_node, 1063 dnode, last_comp, &fnode); 1064 1065 smb_node_release(dnode); 1066 smb_request_free(sr); 1067 1068 if (rc) { 1069 smb_server_release(sv); 1070 return (rc); 1071 } 1072 1073 ASSERT(fnode->vp && fnode->vp->v_vfsp); 1074 1075 smb_vfs_rele(sv, fnode->vp->v_vfsp); 1076 1077 smb_node_release(fnode); 1078 1079 ux = kmem_cache_alloc(sv->si_cache_unexport, KM_SLEEP); 1080 1081 (void) strlcpy(ux->ux_sharename, ioc->name, MAXNAMELEN); 1082 1083 smb_slist_insert_tail(&sv->sv_unexport_list, ux); 1084 smb_thread_signal(&sv->si_thread_unexport); 1085 1086 smb_server_release(sv); 1087 return (0); 1088 } 1089 1090 /* 1091 * smb_server_thread_unexport 1092 * 1093 * This function processes the unexport event list and disconnects shares 1094 * asynchronously. The function executes as a zone-specific thread. 1095 * 1096 * The server arg passed in is safe to use without a reference count, because 1097 * the server cannot be deleted until smb_thread_stop()/destroy() return, 1098 * which is also when the thread exits. 1099 */ 1100 1101 static void 1102 smb_server_thread_unexport(smb_thread_t *thread, void *arg) 1103 { 1104 smb_server_t *sv = (smb_server_t *)arg; 1105 smb_unexport_t *ux; 1106 1107 while (smb_thread_continue(thread)) { 1108 while ((ux = list_head(&sv->sv_unexport_list.sl_list)) 1109 != NULL) { 1110 smb_slist_remove(&sv->sv_unexport_list, ux); 1111 smb_server_disconnect_share(ux->ux_sharename, sv); 1112 kmem_cache_free(sv->si_cache_unexport, ux); 1113 } 1114 } 1115 } 1116 1117 /* 1118 * This is a special interface that will be utilized by ZFS to cause a share to 1119 * be added/removed. 1120 * 1121 * arg is either a lmshare_info_t or share_name from userspace. 1122 * It will need to be copied into the kernel. It is lmshare_info_t 1123 * for add operations and share_name for delete operations. 1124 */ 1125 int 1126 smb_server_share(void *arg, boolean_t add_share) 1127 { 1128 smb_server_t *sv; 1129 int rc; 1130 1131 rc = smb_server_lookup(&sv); 1132 if (rc == 0) { 1133 mutex_enter(&sv->sv_mutex); 1134 switch (sv->sv_state) { 1135 case SMB_SERVER_STATE_RUNNING: 1136 mutex_exit(&sv->sv_mutex); 1137 (void) smb_kshare_upcall(sv->sv_lmshrd, arg, add_share); 1138 break; 1139 default: 1140 mutex_exit(&sv->sv_mutex); 1141 break; 1142 } 1143 smb_server_release(sv); 1144 } 1145 return (0); 1146 } 1147 1148 /* 1149 * ***************************************************************************** 1150 * **************** Functions called from the internal layers ****************** 1151 * ***************************************************************************** 1152 * 1153 * These functions are provided the relevant smb server by the caller. 1154 */ 1155 1156 void 1157 smb_server_reconnection_check(smb_server_t *sv, smb_session_t *session) 1158 { 1159 ASSERT(sv == session->s_server); 1160 1161 smb_session_reconnection_check(&sv->sv_nbt_daemon.ld_session_list, 1162 session); 1163 smb_session_reconnection_check(&sv->sv_tcp_daemon.ld_session_list, 1164 session); 1165 } 1166 1167 void 1168 smb_server_get_cfg(smb_server_t *sv, smb_kmod_cfg_t *cfg) 1169 { 1170 rw_enter(&sv->sv_cfg_lock, RW_READER); 1171 bcopy(&sv->sv_cfg, cfg, sizeof (*cfg)); 1172 rw_exit(&sv->sv_cfg_lock); 1173 } 1174 1175 /* 1176 * ***************************************************************************** 1177 * *************************** Static Functions ******************************** 1178 * ***************************************************************************** 1179 */ 1180 1181 static void 1182 smb_server_timers(smb_thread_t *thread, void *arg) 1183 { 1184 smb_server_t *sv = (smb_server_t *)arg; 1185 1186 ASSERT(sv != NULL); 1187 1188 while (smb_thread_continue_timedwait(thread, 1 /* Seconds */)) { 1189 smb_session_timers(&sv->sv_nbt_daemon.ld_session_list); 1190 smb_session_timers(&sv->sv_tcp_daemon.ld_session_list); 1191 } 1192 } 1193 1194 /* 1195 * smb_server_kstat_init 1196 */ 1197 static int 1198 smb_server_kstat_init(smb_server_t *sv) 1199 { 1200 (void) snprintf(sv->sv_ksp_name, sizeof (sv->sv_ksp_name), "%s%d", 1201 SMBSRV_KSTAT_NAME, sv->sv_zid); 1202 1203 sv->sv_ksp = kstat_create(SMBSRV_KSTAT_MODULE, 0, sv->sv_ksp_name, 1204 SMBSRV_KSTAT_CLASS, KSTAT_TYPE_NAMED, 1205 sizeof (sv->sv_ks_data) / sizeof (kstat_named_t), 1206 KSTAT_FLAG_VIRTUAL); 1207 1208 if (sv->sv_ksp) { 1209 (void) strlcpy(sv->sv_ks_data.open_files.name, "open_files", 1210 sizeof (sv->sv_ks_data.open_files.name)); 1211 sv->sv_ks_data.open_files.data_type = KSTAT_DATA_UINT32; 1212 (void) strlcpy(sv->sv_ks_data.open_trees.name, "connections", 1213 sizeof (sv->sv_ks_data.open_trees.name)); 1214 sv->sv_ks_data.open_trees.data_type = KSTAT_DATA_UINT32; 1215 (void) strlcpy(sv->sv_ks_data.open_users.name, "sessions", 1216 sizeof (sv->sv_ks_data.open_users.name)); 1217 sv->sv_ks_data.open_users.data_type = KSTAT_DATA_UINT32; 1218 1219 mutex_init(&sv->sv_ksp_mutex, NULL, MUTEX_DEFAULT, NULL); 1220 sv->sv_ksp->ks_lock = &sv->sv_ksp_mutex; 1221 sv->sv_ksp->ks_data = (void *)&sv->sv_ks_data; 1222 sv->sv_ksp->ks_update = smb_server_kstat_update_info; 1223 kstat_install(sv->sv_ksp); 1224 } 1225 1226 /* create and initialize smb kstats - smb_dispatch stats */ 1227 smb_dispatch_kstat_init(); 1228 1229 return (0); 1230 } 1231 1232 /* 1233 * smb_server_kstat_fini 1234 */ 1235 static void 1236 smb_server_kstat_fini(smb_server_t *sv) 1237 { 1238 if (sv->sv_ksp) { 1239 kstat_delete(sv->sv_ksp); 1240 mutex_destroy(&sv->sv_ksp_mutex); 1241 sv->sv_ksp = NULL; 1242 } 1243 smb_dispatch_kstat_fini(); 1244 } 1245 1246 /* ARGSUSED */ 1247 static int 1248 smb_server_kstat_update_info(kstat_t *ksp, int rw) 1249 { 1250 smb_server_t *sv; 1251 1252 if (rw == KSTAT_WRITE) { 1253 return (EACCES); 1254 } else { 1255 ASSERT(MUTEX_HELD(ksp->ks_lock)); 1256 1257 _NOTE(LINTED("pointer cast may result in improper alignment")) 1258 sv = (smb_server_t *)((uint8_t *)(ksp->ks_data) - 1259 offsetof(smb_server_t, sv_ks_data)); 1260 1261 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1262 1263 sv->sv_ks_data.open_files.value.ui32 = sv->sv_open_files; 1264 sv->sv_ks_data.open_trees.value.ui32 = sv->sv_open_trees; 1265 sv->sv_ks_data.open_users.value.ui32 = sv->sv_open_users; 1266 } 1267 return (0); 1268 } 1269 1270 /* 1271 * smb_server_stop 1272 * 1273 * The mutex of the server must have been entered before calling this function. 1274 */ 1275 static void 1276 smb_server_stop(smb_server_t *sv) 1277 { 1278 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1279 1280 smb_opipe_door_close(); 1281 smb_thread_stop(&sv->si_thread_timers); 1282 smb_thread_stop(&sv->si_thread_unexport); 1283 smb_kdoor_clnt_close(); 1284 smb_kshare_fini(sv->sv_lmshrd); 1285 sv->sv_lmshrd = NULL; 1286 smb_server_fsop_stop(sv); 1287 1288 if (sv->sv_session) { 1289 smb_session_delete(sv->sv_session); 1290 sv->sv_session = NULL; 1291 } 1292 1293 if (sv->sv_thread_pool) { 1294 taskq_destroy(sv->sv_thread_pool); 1295 sv->sv_thread_pool = NULL; 1296 } 1297 } 1298 1299 static int 1300 smb_server_listen( 1301 smb_server_t *sv, 1302 smb_listener_daemon_t *ld, 1303 in_port_t port, 1304 int family, 1305 int pthread_create_error) 1306 { 1307 int rc; 1308 ksocket_t s_so; 1309 const uint32_t on = 1; 1310 const uint32_t off = 0; 1311 smb_session_t *session; 1312 1313 if (pthread_create_error) { 1314 /* 1315 * Delete the last session created. The user space thread 1316 * creation failed. 1317 */ 1318 smb_session_list_delete_tail(&ld->ld_session_list); 1319 } 1320 1321 if (ld->ld_so == NULL) { 1322 /* First time listener */ 1323 if (family == AF_INET) { 1324 ld->ld_sin.sin_family = (uint32_t)family; 1325 ld->ld_sin.sin_port = htons(port); 1326 ld->ld_sin.sin_addr.s_addr = htonl(INADDR_ANY); 1327 } else { 1328 ld->ld_sin6.sin6_family = (uint32_t)family; 1329 ld->ld_sin6.sin6_port = htons(port); 1330 (void) memset(&ld->ld_sin6.sin6_addr.s6_addr, 0, 1331 sizeof (ld->ld_sin6.sin6_addr.s6_addr)); 1332 } 1333 ld->ld_so = smb_socreate(family, SOCK_STREAM, 0); 1334 if (ld->ld_so) { 1335 1336 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1337 SO_MAC_EXEMPT, &off, sizeof (off), CRED()); 1338 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1339 SO_REUSEADDR, &on, sizeof (on), CRED()); 1340 1341 if (family == AF_INET) { 1342 rc = ksocket_bind(ld->ld_so, 1343 (struct sockaddr *)&ld->ld_sin, 1344 sizeof (ld->ld_sin), CRED()); 1345 } else { 1346 rc = ksocket_bind(ld->ld_so, 1347 (struct sockaddr *)&ld->ld_sin6, 1348 sizeof (ld->ld_sin6), CRED()); 1349 } 1350 if (rc == 0) { 1351 rc = ksocket_listen(ld->ld_so, 20, CRED()); 1352 if (rc < 0) { 1353 cmn_err(CE_WARN, 1354 "Port %d: listen failed", port); 1355 smb_soshutdown(ld->ld_so); 1356 smb_sodestroy(ld->ld_so); 1357 ld->ld_so = NULL; 1358 return (rc); 1359 } 1360 } else { 1361 cmn_err(CE_WARN, 1362 "Port %d: bind failed", port); 1363 smb_soshutdown(ld->ld_so); 1364 smb_sodestroy(ld->ld_so); 1365 ld->ld_so = NULL; 1366 return (rc); 1367 } 1368 } else { 1369 cmn_err(CE_WARN, 1370 "Port %d: socket create failed", port); 1371 return (ENOMEM); 1372 } 1373 } 1374 1375 DTRACE_PROBE1(so__wait__accept, struct sonode *, ld->ld_so); 1376 1377 for (;;) { 1378 rc = ksocket_accept(ld->ld_so, NULL, NULL, &s_so, CRED()); 1379 if (rc == 0) { 1380 uint32_t txbuf_size = 128*1024; 1381 uint32_t on = 1; 1382 1383 DTRACE_PROBE1(so__accept, struct sonode *, s_so); 1384 1385 (void) ksocket_setsockopt(s_so, IPPROTO_TCP, 1386 TCP_NODELAY, &on, sizeof (on), CRED()); 1387 (void) ksocket_setsockopt(s_so, SOL_SOCKET, 1388 SO_KEEPALIVE, &on, sizeof (on), CRED()); 1389 (void) ksocket_setsockopt(s_so, SOL_SOCKET, SO_SNDBUF, 1390 (const void *)&txbuf_size, sizeof (txbuf_size), 1391 CRED()); 1392 /* 1393 * Create a session for this connection. 1394 */ 1395 session = smb_session_create(s_so, port, sv, family); 1396 if (session) { 1397 smb_session_list_append(&ld->ld_session_list, 1398 session); 1399 break; 1400 } else { 1401 smb_soshutdown(s_so); 1402 smb_sodestroy(s_so); 1403 } 1404 continue; 1405 } 1406 smb_session_list_signal(&ld->ld_session_list); 1407 smb_soshutdown(ld->ld_so); 1408 smb_sodestroy(ld->ld_so); 1409 ld->ld_so = NULL; 1410 break; 1411 } 1412 1413 return (rc); 1414 } 1415 1416 /* 1417 * smb_server_lookup 1418 * 1419 * This function tries to find the server associated with the zone of the 1420 * caller. 1421 */ 1422 static int 1423 smb_server_lookup(smb_server_t **psv) 1424 { 1425 zoneid_t zid; 1426 smb_server_t *sv; 1427 1428 zid = getzoneid(); 1429 1430 smb_llist_enter(&smb_servers, RW_READER); 1431 sv = smb_llist_head(&smb_servers); 1432 while (sv) { 1433 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1434 if (sv->sv_zid == zid) { 1435 mutex_enter(&sv->sv_mutex); 1436 if (sv->sv_state != SMB_SERVER_STATE_DELETING) { 1437 sv->sv_refcnt++; 1438 mutex_exit(&sv->sv_mutex); 1439 smb_llist_exit(&smb_servers); 1440 *psv = sv; 1441 return (0); 1442 } 1443 mutex_exit(&sv->sv_mutex); 1444 break; 1445 } 1446 sv = smb_llist_next(&smb_servers, sv); 1447 } 1448 smb_llist_exit(&smb_servers); 1449 return (EPERM); 1450 } 1451 1452 /* 1453 * smb_server_release 1454 * 1455 * This function decrements the reference count of the server and signals its 1456 * condition variable if the state of the server is SMB_SERVER_STATE_DELETING. 1457 */ 1458 static void 1459 smb_server_release(smb_server_t *sv) 1460 { 1461 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1462 1463 mutex_enter(&sv->sv_mutex); 1464 ASSERT(sv->sv_refcnt); 1465 sv->sv_refcnt--; 1466 if ((sv->sv_refcnt == 0) && (sv->sv_state == SMB_SERVER_STATE_DELETING)) 1467 cv_signal(&sv->sv_cv); 1468 mutex_exit(&sv->sv_mutex); 1469 } 1470 1471 /* 1472 * Enumerate the users associated with a session list. 1473 */ 1474 static void 1475 smb_server_enum_private(smb_session_list_t *se, smb_svcenum_t *svcenum) 1476 { 1477 smb_session_t *sn; 1478 smb_llist_t *ulist; 1479 smb_user_t *user; 1480 int rc = 0; 1481 1482 rw_enter(&se->se_lock, RW_READER); 1483 sn = list_head(&se->se_act.lst); 1484 1485 while (sn != NULL) { 1486 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1487 ulist = &sn->s_user_list; 1488 smb_llist_enter(ulist, RW_READER); 1489 user = smb_llist_head(ulist); 1490 1491 while (user != NULL) { 1492 if (smb_user_hold(user)) { 1493 rc = smb_user_enum(user, svcenum); 1494 smb_user_release(user); 1495 } 1496 1497 user = smb_llist_next(ulist, user); 1498 } 1499 1500 smb_llist_exit(ulist); 1501 1502 if (rc != 0) 1503 break; 1504 1505 sn = list_next(&se->se_act.lst, sn); 1506 } 1507 1508 rw_exit(&se->se_lock); 1509 } 1510 1511 /* 1512 * Disconnect sessions associated with the specified client and username. 1513 * Empty strings are treated as wildcards. 1514 */ 1515 static int 1516 smb_server_sesion_disconnect(smb_session_list_t *se, 1517 const char *client, const char *name) 1518 { 1519 smb_session_t *sn; 1520 smb_llist_t *ulist; 1521 smb_user_t *user; 1522 boolean_t match; 1523 int count = 0; 1524 1525 rw_enter(&se->se_lock, RW_READER); 1526 sn = list_head(&se->se_act.lst); 1527 1528 while (sn != NULL) { 1529 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1530 1531 if ((*client != '\0') && (!smb_session_isclient(sn, client))) { 1532 sn = list_next(&se->se_act.lst, sn); 1533 continue; 1534 } 1535 1536 ulist = &sn->s_user_list; 1537 smb_llist_enter(ulist, RW_READER); 1538 user = smb_llist_head(ulist); 1539 1540 while (user != NULL) { 1541 if (smb_user_hold(user)) { 1542 match = (*name == '\0'); 1543 if (!match) 1544 match = smb_user_namecmp(user, name); 1545 1546 if (match) { 1547 smb_llist_exit(ulist); 1548 smb_user_logoff(user); 1549 ++count; 1550 smb_user_release(user); 1551 smb_llist_enter(ulist, RW_READER); 1552 user = smb_llist_head(ulist); 1553 continue; 1554 } 1555 1556 smb_user_release(user); 1557 } 1558 1559 user = smb_llist_next(ulist, user); 1560 } 1561 1562 smb_llist_exit(ulist); 1563 sn = list_next(&se->se_act.lst, sn); 1564 } 1565 1566 rw_exit(&se->se_lock); 1567 return (count); 1568 } 1569 1570 /* 1571 * Close a file by its unique id. 1572 */ 1573 static int 1574 smb_server_fclose(smb_session_list_t *se, uint32_t uniqid) 1575 { 1576 smb_session_t *sn; 1577 smb_llist_t *ulist; 1578 smb_user_t *user; 1579 int rc = ENOENT; 1580 1581 rw_enter(&se->se_lock, RW_READER); 1582 sn = list_head(&se->se_act.lst); 1583 1584 while ((sn != NULL) && (rc == ENOENT)) { 1585 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1586 ulist = &sn->s_user_list; 1587 smb_llist_enter(ulist, RW_READER); 1588 user = smb_llist_head(ulist); 1589 1590 while ((user != NULL) && (rc == ENOENT)) { 1591 if (smb_user_hold(user)) { 1592 rc = smb_user_fclose(user, uniqid); 1593 smb_user_release(user); 1594 } 1595 1596 user = smb_llist_next(ulist, user); 1597 } 1598 1599 smb_llist_exit(ulist); 1600 sn = list_next(&se->se_act.lst, sn); 1601 } 1602 1603 rw_exit(&se->se_lock); 1604 return (rc); 1605 } 1606 1607 static void 1608 smb_server_store_cfg(smb_server_t *sv, smb_ioc_cfg_t *ioc) 1609 { 1610 if (ioc->maxconnections == 0) 1611 ioc->maxconnections = 0xFFFFFFFF; 1612 1613 smb_session_correct_keep_alive_values( 1614 &sv->sv_nbt_daemon.ld_session_list, ioc->keepalive); 1615 smb_session_correct_keep_alive_values( 1616 &sv->sv_tcp_daemon.ld_session_list, ioc->keepalive); 1617 1618 sv->sv_cfg.skc_maxworkers = ioc->maxworkers; 1619 sv->sv_cfg.skc_maxconnections = ioc->maxconnections; 1620 sv->sv_cfg.skc_keepalive = ioc->keepalive; 1621 sv->sv_cfg.skc_restrict_anon = ioc->restrict_anon; 1622 sv->sv_cfg.skc_signing_enable = ioc->signing_enable; 1623 sv->sv_cfg.skc_signing_required = ioc->signing_required; 1624 sv->sv_cfg.skc_oplock_enable = ioc->oplock_enable; 1625 sv->sv_cfg.skc_sync_enable = ioc->sync_enable; 1626 sv->sv_cfg.skc_secmode = ioc->secmode; 1627 sv->sv_cfg.skc_ipv6_enable = ioc->ipv6_enable; 1628 (void) strlcpy(sv->sv_cfg.skc_nbdomain, ioc->nbdomain, 1629 sizeof (sv->sv_cfg.skc_nbdomain)); 1630 (void) strlcpy(sv->sv_cfg.skc_fqdn, ioc->fqdn, 1631 sizeof (sv->sv_cfg.skc_fqdn)); 1632 (void) strlcpy(sv->sv_cfg.skc_hostname, ioc->hostname, 1633 sizeof (sv->sv_cfg.skc_hostname)); 1634 (void) strlcpy(sv->sv_cfg.skc_system_comment, ioc->system_comment, 1635 sizeof (sv->sv_cfg.skc_system_comment)); 1636 } 1637 1638 static int 1639 smb_server_fsop_start(smb_server_t *sv) 1640 { 1641 int error; 1642 1643 error = smb_node_root_init(rootdir, sv, &sv->si_root_smb_node); 1644 if (error != 0) 1645 sv->si_root_smb_node = NULL; 1646 1647 return (error); 1648 } 1649 1650 static void 1651 smb_server_fsop_stop(smb_server_t *sv) 1652 { 1653 if (sv->si_root_smb_node != NULL) { 1654 smb_vfs_rele_all(sv); 1655 smb_node_release(sv->si_root_smb_node); 1656 sv->si_root_smb_node = NULL; 1657 } 1658 } 1659