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 int smb_server_ulist_geti(smb_session_list_t *, uint32_t, 240 uint8_t *, uint32_t, uint_t *); 241 static void smb_server_store_cfg(smb_server_t *, smb_ioc_cfg_t *); 242 static void smb_server_stop(smb_server_t *); 243 static int smb_server_fsop_start(smb_server_t *); 244 static void smb_server_fsop_stop(smb_server_t *); 245 246 static void smb_server_disconnect_share(char *, smb_server_t *); 247 static void smb_server_thread_unexport(smb_thread_t *, void *); 248 249 static smb_llist_t smb_servers; 250 251 /* 252 * ***************************************************************************** 253 * **************** Functions called from the device interface ***************** 254 * ***************************************************************************** 255 * 256 * These functions determine the relevant smb server to which the call apply. 257 */ 258 259 /* 260 * smb_server_svc_init 261 * 262 * This function must be called from smb_drv_attach(). 263 */ 264 int 265 smb_server_svc_init(void) 266 { 267 int rc = 0; 268 269 while (rc == 0) { 270 if (rc = smb_mbc_init()) 271 continue; 272 if (rc = smb_vop_init()) 273 continue; 274 if (rc = smb_node_init()) 275 continue; 276 if (rc = smb_fem_init()) 277 continue; 278 if (rc = smb_user_init()) 279 continue; 280 if (rc = smb_notify_init()) 281 continue; 282 if (rc = smb_net_init()) 283 continue; 284 smb_llist_constructor(&smb_servers, sizeof (smb_server_t), 285 offsetof(smb_server_t, sv_lnd)); 286 return (0); 287 } 288 smb_net_fini(); 289 smb_notify_fini(); 290 smb_user_fini(); 291 smb_fem_fini(); 292 smb_node_fini(); 293 smb_vop_fini(); 294 smb_mbc_fini(); 295 return (rc); 296 } 297 298 /* 299 * smb_server_svc_fini 300 * 301 * This function must called from smb_drv_detach(). It will fail if servers 302 * still exist. 303 */ 304 int 305 smb_server_svc_fini(void) 306 { 307 int rc = EBUSY; 308 309 if (smb_llist_get_count(&smb_servers) == 0) { 310 smb_net_fini(); 311 smb_notify_fini(); 312 smb_user_fini(); 313 smb_fem_fini(); 314 smb_node_fini(); 315 smb_vop_fini(); 316 smb_mbc_fini(); 317 smb_llist_destructor(&smb_servers); 318 rc = 0; 319 } 320 return (rc); 321 } 322 323 /* 324 * smb_server_create 325 * 326 * This function will fail if there's already a server associated with the 327 * caller's zone. 328 */ 329 int 330 smb_server_create(void) 331 { 332 zoneid_t zid; 333 smb_server_t *sv; 334 335 zid = getzoneid(); 336 337 smb_llist_enter(&smb_servers, RW_WRITER); 338 sv = smb_llist_head(&smb_servers); 339 while (sv) { 340 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 341 if (sv->sv_zid == zid) { 342 smb_llist_exit(&smb_servers); 343 return (EPERM); 344 } 345 sv = smb_llist_next(&smb_servers, sv); 346 } 347 348 sv = kmem_zalloc(sizeof (smb_server_t), KM_NOSLEEP); 349 if (sv == NULL) { 350 smb_llist_exit(&smb_servers); 351 return (ENOMEM); 352 } 353 354 smb_llist_constructor(&sv->sv_vfs_list, sizeof (smb_vfs_t), 355 offsetof(smb_vfs_t, sv_lnd)); 356 357 smb_slist_constructor(&sv->sv_unexport_list, sizeof (smb_unexport_t), 358 offsetof(smb_unexport_t, ux_lnd)); 359 360 smb_session_list_constructor(&sv->sv_nbt_daemon.ld_session_list); 361 smb_session_list_constructor(&sv->sv_tcp_daemon.ld_session_list); 362 363 sv->si_cache_unexport = kmem_cache_create("smb_unexport_cache", 364 sizeof (smb_unexport_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 365 sv->si_cache_vfs = kmem_cache_create("smb_vfs_cache", 366 sizeof (smb_vfs_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 367 sv->si_cache_request = kmem_cache_create("smb_request_cache", 368 sizeof (smb_request_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 369 sv->si_cache_session = kmem_cache_create("smb_session_cache", 370 sizeof (smb_session_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 371 sv->si_cache_user = kmem_cache_create("smb_user_cache", 372 sizeof (smb_user_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 373 sv->si_cache_tree = kmem_cache_create("smb_tree_cache", 374 sizeof (smb_tree_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 375 sv->si_cache_ofile = kmem_cache_create("smb_ofile_cache", 376 sizeof (smb_ofile_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 377 sv->si_cache_odir = kmem_cache_create("smb_odir_cache", 378 sizeof (smb_odir_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 379 380 smb_thread_init(&sv->si_thread_timers, 381 "smb_timers", smb_server_timers, sv, 382 NULL, NULL); 383 384 smb_thread_init(&sv->si_thread_unexport, "smb_thread_unexport", 385 smb_server_thread_unexport, sv, NULL, NULL); 386 387 sv->sv_pid = curproc->p_pid; 388 389 smb_kdoor_clnt_init(); 390 smb_opipe_door_init(); 391 (void) smb_server_kstat_init(sv); 392 393 mutex_init(&sv->sv_mutex, NULL, MUTEX_DEFAULT, NULL); 394 cv_init(&sv->sv_cv, NULL, CV_DEFAULT, NULL); 395 sv->sv_state = SMB_SERVER_STATE_CREATED; 396 sv->sv_magic = SMB_SERVER_MAGIC; 397 sv->sv_zid = zid; 398 399 smb_llist_insert_tail(&smb_servers, sv); 400 smb_llist_exit(&smb_servers); 401 return (0); 402 } 403 404 /* 405 * smb_server_delete 406 * 407 * This function will delete the server passed in. It will make sure that all 408 * activity associated that server has ceased before destroying it. 409 */ 410 int 411 smb_server_delete(void) 412 { 413 smb_server_t *sv; 414 smb_unexport_t *ux; 415 int rc; 416 417 rc = smb_server_lookup(&sv); 418 if (rc != 0) 419 return (rc); 420 421 mutex_enter(&sv->sv_mutex); 422 switch (sv->sv_state) { 423 case SMB_SERVER_STATE_RUNNING: 424 { 425 boolean_t nbt = B_FALSE; 426 boolean_t tcp = B_FALSE; 427 428 if (sv->sv_nbt_daemon.ld_kth) { 429 tsignal(sv->sv_nbt_daemon.ld_kth, SIGINT); 430 nbt = B_TRUE; 431 } 432 if (sv->sv_tcp_daemon.ld_kth) { 433 tsignal(sv->sv_tcp_daemon.ld_kth, SIGINT); 434 tcp = B_TRUE; 435 } 436 sv->sv_state = SMB_SERVER_STATE_DELETING; 437 mutex_exit(&sv->sv_mutex); 438 if (nbt) 439 thread_join(sv->sv_nbt_daemon.ld_ktdid); 440 if (tcp) 441 thread_join(sv->sv_tcp_daemon.ld_ktdid); 442 mutex_enter(&sv->sv_mutex); 443 break; 444 } 445 case SMB_SERVER_STATE_CONFIGURED: 446 case SMB_SERVER_STATE_CREATED: 447 sv->sv_state = SMB_SERVER_STATE_DELETING; 448 break; 449 default: 450 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 451 mutex_exit(&sv->sv_mutex); 452 smb_server_release(sv); 453 return (ENOTTY); 454 } 455 456 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 457 458 sv->sv_refcnt--; 459 while (sv->sv_refcnt) 460 cv_wait(&sv->sv_cv, &sv->sv_mutex); 461 462 mutex_exit(&sv->sv_mutex); 463 464 smb_llist_enter(&smb_servers, RW_WRITER); 465 smb_llist_remove(&smb_servers, sv); 466 smb_llist_exit(&smb_servers); 467 468 smb_server_stop(sv); 469 rw_destroy(&sv->sv_cfg_lock); 470 smb_opipe_door_fini(); 471 smb_kdoor_clnt_fini(); 472 smb_server_kstat_fini(sv); 473 smb_llist_destructor(&sv->sv_vfs_list); 474 475 while ((ux = list_head(&sv->sv_unexport_list.sl_list)) != NULL) { 476 smb_slist_remove(&sv->sv_unexport_list, ux); 477 kmem_cache_free(sv->si_cache_unexport, ux); 478 } 479 smb_slist_destructor(&sv->sv_unexport_list); 480 481 kmem_cache_destroy(sv->si_cache_unexport); 482 kmem_cache_destroy(sv->si_cache_vfs); 483 kmem_cache_destroy(sv->si_cache_request); 484 kmem_cache_destroy(sv->si_cache_session); 485 kmem_cache_destroy(sv->si_cache_user); 486 kmem_cache_destroy(sv->si_cache_tree); 487 kmem_cache_destroy(sv->si_cache_ofile); 488 kmem_cache_destroy(sv->si_cache_odir); 489 490 smb_thread_destroy(&sv->si_thread_timers); 491 smb_thread_destroy(&sv->si_thread_unexport); 492 mutex_destroy(&sv->sv_mutex); 493 cv_destroy(&sv->sv_cv); 494 sv->sv_magic = 0; 495 kmem_free(sv, sizeof (smb_server_t)); 496 497 return (0); 498 } 499 500 /* 501 * smb_server_configure 502 */ 503 int 504 smb_server_configure(smb_ioc_cfg_t *ioc) 505 { 506 int rc = 0; 507 smb_server_t *sv; 508 509 rc = smb_server_lookup(&sv); 510 if (rc) 511 return (rc); 512 513 mutex_enter(&sv->sv_mutex); 514 switch (sv->sv_state) { 515 case SMB_SERVER_STATE_CREATED: 516 smb_server_store_cfg(sv, ioc); 517 sv->sv_state = SMB_SERVER_STATE_CONFIGURED; 518 break; 519 520 case SMB_SERVER_STATE_CONFIGURED: 521 smb_server_store_cfg(sv, ioc); 522 break; 523 524 case SMB_SERVER_STATE_RUNNING: 525 rw_enter(&sv->sv_cfg_lock, RW_WRITER); 526 smb_server_store_cfg(sv, ioc); 527 rw_exit(&sv->sv_cfg_lock); 528 break; 529 530 default: 531 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 532 rc = EFAULT; 533 break; 534 } 535 mutex_exit(&sv->sv_mutex); 536 537 smb_server_release(sv); 538 539 return (rc); 540 } 541 542 /* 543 * smb_server_start 544 */ 545 int 546 smb_server_start(smb_ioc_start_t *ioc) 547 { 548 int rc = 0; 549 smb_server_t *sv; 550 551 rc = smb_server_lookup(&sv); 552 if (rc) 553 return (rc); 554 555 mutex_enter(&sv->sv_mutex); 556 switch (sv->sv_state) { 557 case SMB_SERVER_STATE_CONFIGURED: 558 559 sv->sv_thread_pool = taskq_create("smb_workers", 560 sv->sv_cfg.skc_maxworkers, SMB_WORKER_PRIORITY, 561 sv->sv_cfg.skc_maxworkers, INT_MAX, 562 TASKQ_DYNAMIC|TASKQ_PREPOPULATE); 563 564 sv->sv_session = smb_session_create(NULL, 0, sv, 0); 565 566 if (sv->sv_thread_pool == NULL || sv->sv_session == NULL) { 567 rc = ENOMEM; 568 break; 569 } 570 571 if (rc = smb_server_fsop_start(sv)) 572 break; 573 ASSERT(sv->sv_lmshrd == NULL); 574 sv->sv_lmshrd = smb_kshare_init(ioc->lmshrd); 575 if (sv->sv_lmshrd == NULL) 576 break; 577 if (rc = smb_kdoor_clnt_open(ioc->udoor)) 578 break; 579 if (rc = smb_thread_start(&sv->si_thread_timers)) 580 break; 581 if (rc = smb_thread_start(&sv->si_thread_unexport)) 582 break; 583 if (rc = smb_opipe_door_open(ioc->opipe)) { 584 cmn_err(CE_WARN, "Cannot open opipe door"); 585 break; 586 } 587 588 (void) oem_language_set("english"); 589 590 sv->sv_state = SMB_SERVER_STATE_RUNNING; 591 mutex_exit(&sv->sv_mutex); 592 smb_server_release(sv); 593 return (0); 594 default: 595 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 596 (sv->sv_state == SMB_SERVER_STATE_RUNNING) || 597 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 598 mutex_exit(&sv->sv_mutex); 599 smb_server_release(sv); 600 return (ENOTTY); 601 } 602 603 smb_server_stop(sv); 604 mutex_exit(&sv->sv_mutex); 605 smb_server_release(sv); 606 return (rc); 607 } 608 609 /* 610 * smb_server_nbt_listen: SMB-over-NetBIOS service 611 * 612 * Traditional SMB service over NetBIOS (port 139), which requires 613 * that a NetBIOS session be established. 614 */ 615 int 616 smb_server_nbt_listen(smb_ioc_listen_t *ioc) 617 { 618 smb_server_t *sv; 619 int rc; 620 621 rc = smb_server_lookup(&sv); 622 if (rc) 623 return (rc); 624 625 mutex_enter(&sv->sv_mutex); 626 switch (sv->sv_state) { 627 case SMB_SERVER_STATE_RUNNING: 628 if ((sv->sv_nbt_daemon.ld_kth != NULL) && 629 (sv->sv_nbt_daemon.ld_kth != curthread)) { 630 mutex_exit(&sv->sv_mutex); 631 smb_server_release(sv); 632 return (EACCES); 633 } else { 634 sv->sv_nbt_daemon.ld_kth = curthread; 635 sv->sv_nbt_daemon.ld_ktdid = curthread->t_did; 636 } 637 break; 638 default: 639 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 640 (sv->sv_state == SMB_SERVER_STATE_CONFIGURED) || 641 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 642 mutex_exit(&sv->sv_mutex); 643 smb_server_release(sv); 644 return (EFAULT); 645 } 646 mutex_exit(&sv->sv_mutex); 647 648 /* 649 * netbios must be ipv4 650 */ 651 rc = smb_server_listen(sv, &sv->sv_nbt_daemon, SSN_SRVC_TCP_PORT, 652 AF_INET, ioc->error); 653 654 if (rc) { 655 mutex_enter(&sv->sv_mutex); 656 sv->sv_nbt_daemon.ld_kth = NULL; 657 mutex_exit(&sv->sv_mutex); 658 } 659 660 smb_server_release(sv); 661 return (rc); 662 } 663 664 int 665 smb_server_tcp_listen(smb_ioc_listen_t *ioc) 666 { 667 smb_server_t *sv; 668 int rc; 669 670 rc = smb_server_lookup(&sv); 671 if (rc) 672 return (rc); 673 674 mutex_enter(&sv->sv_mutex); 675 switch (sv->sv_state) { 676 case SMB_SERVER_STATE_RUNNING: 677 if ((sv->sv_tcp_daemon.ld_kth) && 678 (sv->sv_tcp_daemon.ld_kth != curthread)) { 679 mutex_exit(&sv->sv_mutex); 680 smb_server_release(sv); 681 return (EACCES); 682 } else { 683 sv->sv_tcp_daemon.ld_kth = curthread; 684 sv->sv_tcp_daemon.ld_ktdid = curthread->t_did; 685 } 686 break; 687 default: 688 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 689 (sv->sv_state == SMB_SERVER_STATE_CONFIGURED) || 690 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 691 mutex_exit(&sv->sv_mutex); 692 smb_server_release(sv); 693 return (EFAULT); 694 } 695 mutex_exit(&sv->sv_mutex); 696 697 if (sv->sv_cfg.skc_ipv6_enable) 698 rc = smb_server_listen(sv, &sv->sv_tcp_daemon, 699 SMB_SRVC_TCP_PORT, AF_INET6, ioc->error); 700 else 701 rc = smb_server_listen(sv, &sv->sv_tcp_daemon, 702 SMB_SRVC_TCP_PORT, AF_INET, ioc->error); 703 if (rc) { 704 mutex_enter(&sv->sv_mutex); 705 sv->sv_tcp_daemon.ld_kth = NULL; 706 mutex_exit(&sv->sv_mutex); 707 } 708 709 smb_server_release(sv); 710 return (rc); 711 } 712 713 /* 714 * smb_server_nbt_receive 715 */ 716 int 717 smb_server_nbt_receive(void) 718 { 719 int rc; 720 smb_server_t *sv; 721 722 if ((rc = smb_server_lookup(&sv)) == 0) { 723 rc = smb_session_daemon(&sv->sv_nbt_daemon.ld_session_list); 724 smb_server_release(sv); 725 } 726 727 return (rc); 728 } 729 730 /* 731 * smb_server_tcp_receive 732 */ 733 int 734 smb_server_tcp_receive(void) 735 { 736 int rc; 737 smb_server_t *sv; 738 739 if ((rc = smb_server_lookup(&sv)) == 0) { 740 rc = smb_session_daemon(&sv->sv_tcp_daemon.ld_session_list); 741 smb_server_release(sv); 742 } 743 744 return (rc); 745 } 746 747 int 748 smb_server_set_gmtoff(smb_ioc_gmt_t *ioc) 749 { 750 int rc; 751 smb_server_t *sv; 752 753 if ((rc = smb_server_lookup(&sv)) == 0) { 754 sv->si_gmtoff = ioc->offset; 755 smb_server_release(sv); 756 } 757 758 return (rc); 759 } 760 761 int 762 smb_server_user_number(smb_ioc_usernum_t *ioc) 763 { 764 smb_server_t *sv; 765 int rc; 766 767 if ((rc = smb_server_lookup(&sv)) == 0) { 768 ioc->num = sv->sv_open_users; 769 smb_server_release(sv); 770 } 771 return (rc); 772 } 773 774 int 775 smb_server_user_list(smb_ioc_ulist_t *ioc) 776 { 777 smb_server_t *sv; 778 uint8_t *data; 779 uint32_t data_len; 780 uint_t bytes_encoded; 781 int rc; 782 783 if ((rc = smb_server_lookup(&sv)) == 0) { 784 785 bytes_encoded = 0; 786 data = ioc->data; 787 data_len = ioc->data_len; 788 ioc->num = 789 smb_server_ulist_geti(&sv->sv_nbt_daemon.ld_session_list, 790 ioc->cookie, data, data_len, &bytes_encoded); 791 792 data += bytes_encoded; 793 data_len -= bytes_encoded; 794 ioc->data_len = bytes_encoded; 795 ioc->cookie += ioc->num; 796 797 ioc->num += 798 smb_server_ulist_geti(&sv->sv_tcp_daemon.ld_session_list, 799 ioc->cookie, data, data_len, &bytes_encoded); 800 801 ioc->data_len += bytes_encoded; 802 803 smb_server_release(sv); 804 } 805 return (rc); 806 } 807 808 /* 809 * ***************************************************************************** 810 * ****************** Functions called from the door interface ***************** 811 * ***************************************************************************** 812 * 813 * These functions determine the relevant smb server to which the call apply. 814 */ 815 816 uint32_t 817 smb_server_get_user_count(void) 818 { 819 smb_server_t *sv; 820 uint32_t counter = 0; 821 822 if (smb_server_lookup(&sv) == 0) { 823 counter = (uint32_t)sv->sv_open_users; 824 smb_server_release(sv); 825 } 826 827 return (counter); 828 } 829 830 uint32_t 831 smb_server_get_session_count(void) 832 { 833 smb_server_t *sv; 834 uint32_t counter = 0; 835 836 if (smb_server_lookup(&sv)) 837 return (0); 838 839 rw_enter(&sv->sv_nbt_daemon.ld_session_list.se_lock, RW_READER); 840 counter = sv->sv_nbt_daemon.ld_session_list.se_act.count; 841 rw_exit(&sv->sv_nbt_daemon.ld_session_list.se_lock); 842 rw_enter(&sv->sv_tcp_daemon.ld_session_list.se_lock, RW_READER); 843 counter += sv->sv_tcp_daemon.ld_session_list.se_act.count; 844 rw_exit(&sv->sv_tcp_daemon.ld_session_list.se_lock); 845 846 smb_server_release(sv); 847 848 return (counter); 849 } 850 851 /* 852 * smb_server_disconnect_share 853 * 854 * Disconnects the specified share. This function should be called after the 855 * share passed in has been made unavailable by the "share manager". 856 */ 857 static void 858 smb_server_disconnect_share(char *sharename, smb_server_t *sv) 859 { 860 smb_session_disconnect_share(&sv->sv_nbt_daemon.ld_session_list, 861 sharename); 862 smb_session_disconnect_share(&sv->sv_tcp_daemon.ld_session_list, 863 sharename); 864 } 865 866 /* 867 * smb_server_share_export() 868 * 869 * This function handles kernel processing at share enable time. 870 * 871 * At share-enable time (LMSHRD_ADD), the file system corresponding to 872 * the share is checked for characteristics that are required for SMB 873 * sharing. If this check passes, then a hold is taken on the root vnode 874 * of the file system (or a reference count on the corresponding smb_vfs_t 875 * is bumped), preventing an unmount. (See smb_vfs_hold()). 876 */ 877 878 int 879 smb_server_share_export(smb_ioc_share_t *ioc) 880 { 881 smb_server_t *sv; 882 int error = 0; 883 smb_node_t *fnode = NULL; 884 smb_node_t *dnode; 885 char last_comp[MAXNAMELEN]; 886 smb_request_t *sr; 887 888 if (smb_server_lookup(&sv)) 889 return (EINVAL); 890 891 mutex_enter(&sv->sv_mutex); 892 switch (sv->sv_state) { 893 case SMB_SERVER_STATE_RUNNING: 894 break; 895 default: 896 mutex_exit(&sv->sv_mutex); 897 return (ENOTACTIVE); 898 } 899 mutex_exit(&sv->sv_mutex); 900 901 sr = smb_request_alloc(sv->sv_session, 0); 902 if (sr == NULL) { 903 smb_server_release(sv); 904 return (ENOMEM); 905 } 906 907 sr->user_cr = kcred; 908 909 error = smb_pathname_reduce(sr, kcred, ioc->path, 910 NULL, NULL, &dnode, last_comp); 911 912 if (error) { 913 smb_request_free(sr); 914 smb_server_release(sv); 915 return (error); 916 } 917 918 error = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS, 919 sv->si_root_smb_node, dnode, last_comp, &fnode); 920 921 smb_node_release(dnode); 922 923 if (error) { 924 smb_request_free(sr); 925 smb_server_release(sv); 926 return (error); 927 } 928 929 ASSERT(fnode->vp && fnode->vp->v_vfsp); 930 931 #ifdef SMB_ENFORCE_NODEV 932 if (vfs_optionisset(fnode->vp->v_vfsp, MNTOPT_NODEVICES, NULL) == 0) { 933 smb_node_release(fnode); 934 smb_request_free(sr); 935 smb_server_release(sv); 936 return (EINVAL); 937 } 938 #endif /* SMB_ENFORCE_NODEV */ 939 940 if (!smb_vfs_hold(sv, fnode->vp->v_vfsp)) 941 error = ENOMEM; 942 943 /* 944 * The refcount on the smb_vfs has been incremented. 945 * If it wasn't already, a hold has also been taken 946 * on the root vnode of the file system. 947 */ 948 949 smb_node_release(fnode); 950 smb_request_free(sr); 951 smb_server_release(sv); 952 return (error); 953 } 954 955 /* 956 * smb_server_share_unexport() 957 * 958 * This function is invoked when a share is disabled to disconnect trees 959 * and close files. Cleaning up may involve VOP and/or VFS calls, which 960 * may conflict/deadlock with stuck threads if something is amiss with the 961 * file system. Queueing the request for asynchronous processing allows the 962 * call to return immediately so that, if the unshare is being done in the 963 * context of a forced unmount, the forced unmount will always be able to 964 * proceed (unblocking stuck I/O and eventually allowing all blocked unshare 965 * processes to complete). 966 * 967 * The path lookup to find the root vnode of the VFS in question and the 968 * release of this vnode are done synchronously prior to any associated 969 * unmount. Doing these asynchronous to an associated unmount could run 970 * the risk of a spurious EBUSY for a standard unmount or an EIO during 971 * the path lookup due to a forced unmount finishing first. 972 */ 973 974 int 975 smb_server_share_unexport(smb_ioc_share_t *ioc) 976 { 977 smb_server_t *sv; 978 smb_request_t *sr; 979 smb_unexport_t *ux; 980 smb_node_t *fnode = NULL; 981 smb_node_t *dnode; 982 char last_comp[MAXNAMELEN]; 983 int rc; 984 985 if ((rc = smb_server_lookup(&sv))) 986 return (rc); 987 988 mutex_enter(&sv->sv_mutex); 989 switch (sv->sv_state) { 990 case SMB_SERVER_STATE_RUNNING: 991 break; 992 default: 993 mutex_exit(&sv->sv_mutex); 994 return (ENOTACTIVE); 995 } 996 mutex_exit(&sv->sv_mutex); 997 998 sr = smb_request_alloc(sv->sv_session, 0); 999 1000 if (sr == NULL) { 1001 smb_server_release(sv); 1002 return (ENOMEM); 1003 } 1004 1005 sr->user_cr = kcred; 1006 1007 rc = smb_pathname_reduce(sr, kcred, ioc->path, NULL, NULL, 1008 &dnode, last_comp); 1009 1010 if (rc) { 1011 smb_request_free(sr); 1012 smb_server_release(sv); 1013 return (rc); 1014 } 1015 1016 rc = smb_fsop_lookup(sr, kcred, SMB_FOLLOW_LINKS, sv->si_root_smb_node, 1017 dnode, last_comp, &fnode); 1018 1019 smb_node_release(dnode); 1020 smb_request_free(sr); 1021 1022 if (rc) { 1023 smb_server_release(sv); 1024 return (rc); 1025 } 1026 1027 ASSERT(fnode->vp && fnode->vp->v_vfsp); 1028 1029 smb_vfs_rele(sv, fnode->vp->v_vfsp); 1030 1031 smb_node_release(fnode); 1032 1033 ux = kmem_cache_alloc(sv->si_cache_unexport, KM_SLEEP); 1034 1035 (void) strlcpy(ux->ux_sharename, ioc->name, MAXNAMELEN); 1036 1037 smb_slist_insert_tail(&sv->sv_unexport_list, ux); 1038 smb_thread_signal(&sv->si_thread_unexport); 1039 1040 smb_server_release(sv); 1041 return (0); 1042 } 1043 1044 /* 1045 * smb_server_thread_unexport 1046 * 1047 * This function processes the unexport event list and disconnects shares 1048 * asynchronously. The function executes as a zone-specific thread. 1049 * 1050 * The server arg passed in is safe to use without a reference count, because 1051 * the server cannot be deleted until smb_thread_stop()/destroy() return, 1052 * which is also when the thread exits. 1053 */ 1054 1055 static void 1056 smb_server_thread_unexport(smb_thread_t *thread, void *arg) 1057 { 1058 smb_server_t *sv = (smb_server_t *)arg; 1059 smb_unexport_t *ux; 1060 1061 while (smb_thread_continue(thread)) { 1062 while ((ux = list_head(&sv->sv_unexport_list.sl_list)) 1063 != NULL) { 1064 smb_slist_remove(&sv->sv_unexport_list, ux); 1065 smb_server_disconnect_share(ux->ux_sharename, sv); 1066 kmem_cache_free(sv->si_cache_unexport, ux); 1067 } 1068 } 1069 } 1070 1071 /* 1072 * This is a special interface that will be utilized by ZFS to cause a share to 1073 * be added/removed. 1074 * 1075 * arg is either a lmshare_info_t or share_name from userspace. 1076 * It will need to be copied into the kernel. It is lmshare_info_t 1077 * for add operations and share_name for delete operations. 1078 */ 1079 int 1080 smb_server_share(void *arg, boolean_t add_share) 1081 { 1082 smb_server_t *sv; 1083 int rc; 1084 1085 rc = smb_server_lookup(&sv); 1086 if (rc == 0) { 1087 mutex_enter(&sv->sv_mutex); 1088 switch (sv->sv_state) { 1089 case SMB_SERVER_STATE_RUNNING: 1090 mutex_exit(&sv->sv_mutex); 1091 (void) smb_kshare_upcall(sv->sv_lmshrd, arg, add_share); 1092 break; 1093 default: 1094 mutex_exit(&sv->sv_mutex); 1095 break; 1096 } 1097 smb_server_release(sv); 1098 } 1099 return (0); 1100 } 1101 1102 /* 1103 * ***************************************************************************** 1104 * **************** Functions called from the internal layers ****************** 1105 * ***************************************************************************** 1106 * 1107 * These functions are provided the relevant smb server by the caller. 1108 */ 1109 1110 void 1111 smb_server_reconnection_check(smb_server_t *sv, smb_session_t *session) 1112 { 1113 ASSERT(sv == session->s_server); 1114 1115 smb_session_reconnection_check(&sv->sv_nbt_daemon.ld_session_list, 1116 session); 1117 smb_session_reconnection_check(&sv->sv_tcp_daemon.ld_session_list, 1118 session); 1119 } 1120 1121 void 1122 smb_server_get_cfg(smb_server_t *sv, smb_kmod_cfg_t *cfg) 1123 { 1124 rw_enter(&sv->sv_cfg_lock, RW_READER); 1125 bcopy(&sv->sv_cfg, cfg, sizeof (*cfg)); 1126 rw_exit(&sv->sv_cfg_lock); 1127 } 1128 1129 /* 1130 * ***************************************************************************** 1131 * *************************** Static Functions ******************************** 1132 * ***************************************************************************** 1133 */ 1134 1135 static void 1136 smb_server_timers(smb_thread_t *thread, void *arg) 1137 { 1138 smb_server_t *sv = (smb_server_t *)arg; 1139 1140 ASSERT(sv != NULL); 1141 1142 while (smb_thread_continue_timedwait(thread, 1 /* Seconds */)) { 1143 smb_session_timers(&sv->sv_nbt_daemon.ld_session_list); 1144 smb_session_timers(&sv->sv_tcp_daemon.ld_session_list); 1145 } 1146 } 1147 1148 /* 1149 * smb_server_kstat_init 1150 */ 1151 static int 1152 smb_server_kstat_init(smb_server_t *sv) 1153 { 1154 (void) snprintf(sv->sv_ksp_name, sizeof (sv->sv_ksp_name), "%s%d", 1155 SMBSRV_KSTAT_NAME, sv->sv_zid); 1156 1157 sv->sv_ksp = kstat_create(SMBSRV_KSTAT_MODULE, 0, sv->sv_ksp_name, 1158 SMBSRV_KSTAT_CLASS, KSTAT_TYPE_NAMED, 1159 sizeof (sv->sv_ks_data) / sizeof (kstat_named_t), 1160 KSTAT_FLAG_VIRTUAL); 1161 1162 if (sv->sv_ksp) { 1163 (void) strlcpy(sv->sv_ks_data.open_files.name, "open_files", 1164 sizeof (sv->sv_ks_data.open_files.name)); 1165 sv->sv_ks_data.open_files.data_type = KSTAT_DATA_UINT32; 1166 (void) strlcpy(sv->sv_ks_data.open_trees.name, "connections", 1167 sizeof (sv->sv_ks_data.open_trees.name)); 1168 sv->sv_ks_data.open_trees.data_type = KSTAT_DATA_UINT32; 1169 (void) strlcpy(sv->sv_ks_data.open_users.name, "sessions", 1170 sizeof (sv->sv_ks_data.open_users.name)); 1171 sv->sv_ks_data.open_users.data_type = KSTAT_DATA_UINT32; 1172 1173 mutex_init(&sv->sv_ksp_mutex, NULL, MUTEX_DEFAULT, NULL); 1174 sv->sv_ksp->ks_lock = &sv->sv_ksp_mutex; 1175 sv->sv_ksp->ks_data = (void *)&sv->sv_ks_data; 1176 sv->sv_ksp->ks_update = smb_server_kstat_update_info; 1177 kstat_install(sv->sv_ksp); 1178 } 1179 1180 /* create and initialize smb kstats - smb_dispatch stats */ 1181 smb_dispatch_kstat_init(); 1182 1183 return (0); 1184 } 1185 1186 /* 1187 * smb_server_kstat_fini 1188 */ 1189 static void 1190 smb_server_kstat_fini(smb_server_t *sv) 1191 { 1192 if (sv->sv_ksp) { 1193 kstat_delete(sv->sv_ksp); 1194 mutex_destroy(&sv->sv_ksp_mutex); 1195 sv->sv_ksp = NULL; 1196 } 1197 smb_dispatch_kstat_fini(); 1198 } 1199 1200 /* ARGSUSED */ 1201 static int 1202 smb_server_kstat_update_info(kstat_t *ksp, int rw) 1203 { 1204 smb_server_t *sv; 1205 1206 if (rw == KSTAT_WRITE) { 1207 return (EACCES); 1208 } else { 1209 ASSERT(MUTEX_HELD(ksp->ks_lock)); 1210 1211 _NOTE(LINTED("pointer cast may result in improper alignment")) 1212 sv = (smb_server_t *)((uint8_t *)(ksp->ks_data) - 1213 offsetof(smb_server_t, sv_ks_data)); 1214 1215 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1216 1217 sv->sv_ks_data.open_files.value.ui32 = sv->sv_open_files; 1218 sv->sv_ks_data.open_trees.value.ui32 = sv->sv_open_trees; 1219 sv->sv_ks_data.open_users.value.ui32 = sv->sv_open_users; 1220 } 1221 return (0); 1222 } 1223 1224 /* 1225 * smb_server_stop 1226 * 1227 * The mutex of the server must have been entered before calling this function. 1228 */ 1229 static void 1230 smb_server_stop(smb_server_t *sv) 1231 { 1232 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1233 1234 smb_opipe_door_close(); 1235 smb_thread_stop(&sv->si_thread_timers); 1236 smb_thread_stop(&sv->si_thread_unexport); 1237 smb_kdoor_clnt_close(); 1238 smb_kshare_fini(sv->sv_lmshrd); 1239 sv->sv_lmshrd = NULL; 1240 smb_server_fsop_stop(sv); 1241 1242 if (sv->sv_session) { 1243 smb_session_delete(sv->sv_session); 1244 sv->sv_session = NULL; 1245 } 1246 1247 if (sv->sv_thread_pool) { 1248 taskq_destroy(sv->sv_thread_pool); 1249 sv->sv_thread_pool = NULL; 1250 } 1251 } 1252 1253 static int 1254 smb_server_listen( 1255 smb_server_t *sv, 1256 smb_listener_daemon_t *ld, 1257 in_port_t port, 1258 int family, 1259 int pthread_create_error) 1260 { 1261 int rc; 1262 ksocket_t s_so; 1263 const uint32_t on = 1; 1264 const uint32_t off = 0; 1265 smb_session_t *session; 1266 1267 if (pthread_create_error) { 1268 /* 1269 * Delete the last session created. The user space thread 1270 * creation failed. 1271 */ 1272 smb_session_list_delete_tail(&ld->ld_session_list); 1273 } 1274 1275 if (ld->ld_so == NULL) { 1276 /* First time listener */ 1277 if (family == AF_INET) { 1278 ld->ld_sin.sin_family = (uint32_t)family; 1279 ld->ld_sin.sin_port = htons(port); 1280 ld->ld_sin.sin_addr.s_addr = htonl(INADDR_ANY); 1281 } else { 1282 ld->ld_sin6.sin6_family = (uint32_t)family; 1283 ld->ld_sin6.sin6_port = htons(port); 1284 (void) memset(&ld->ld_sin6.sin6_addr.s6_addr, 0, 1285 sizeof (ld->ld_sin6.sin6_addr.s6_addr)); 1286 } 1287 ld->ld_so = smb_socreate(family, SOCK_STREAM, 0); 1288 if (ld->ld_so) { 1289 1290 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1291 SO_MAC_EXEMPT, &off, sizeof (off), CRED()); 1292 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1293 SO_REUSEADDR, &on, sizeof (on), CRED()); 1294 1295 if (family == AF_INET) { 1296 rc = ksocket_bind(ld->ld_so, 1297 (struct sockaddr *)&ld->ld_sin, 1298 sizeof (ld->ld_sin), CRED()); 1299 } else { 1300 rc = ksocket_bind(ld->ld_so, 1301 (struct sockaddr *)&ld->ld_sin6, 1302 sizeof (ld->ld_sin6), CRED()); 1303 } 1304 if (rc == 0) { 1305 rc = ksocket_listen(ld->ld_so, 20, CRED()); 1306 if (rc < 0) { 1307 cmn_err(CE_WARN, 1308 "Port %d: listen failed", port); 1309 smb_soshutdown(ld->ld_so); 1310 smb_sodestroy(ld->ld_so); 1311 ld->ld_so = NULL; 1312 return (rc); 1313 } 1314 } else { 1315 cmn_err(CE_WARN, 1316 "Port %d: bind failed", port); 1317 smb_soshutdown(ld->ld_so); 1318 smb_sodestroy(ld->ld_so); 1319 ld->ld_so = NULL; 1320 return (rc); 1321 } 1322 } else { 1323 cmn_err(CE_WARN, 1324 "Port %d: socket create failed", port); 1325 return (ENOMEM); 1326 } 1327 } 1328 1329 DTRACE_PROBE1(so__wait__accept, struct sonode *, ld->ld_so); 1330 1331 for (;;) { 1332 rc = ksocket_accept(ld->ld_so, NULL, NULL, &s_so, CRED()); 1333 if (rc == 0) { 1334 uint32_t txbuf_size = 128*1024; 1335 uint32_t on = 1; 1336 1337 DTRACE_PROBE1(so__accept, struct sonode *, s_so); 1338 1339 (void) ksocket_setsockopt(s_so, IPPROTO_TCP, 1340 TCP_NODELAY, &on, sizeof (on), CRED()); 1341 (void) ksocket_setsockopt(s_so, SOL_SOCKET, 1342 SO_KEEPALIVE, &on, sizeof (on), CRED()); 1343 (void) ksocket_setsockopt(s_so, SOL_SOCKET, SO_SNDBUF, 1344 (const void *)&txbuf_size, sizeof (txbuf_size), 1345 CRED()); 1346 /* 1347 * Create a session for this connection. 1348 */ 1349 session = smb_session_create(s_so, port, sv, family); 1350 if (session) { 1351 smb_session_list_append(&ld->ld_session_list, 1352 session); 1353 break; 1354 } else { 1355 smb_soshutdown(s_so); 1356 smb_sodestroy(s_so); 1357 } 1358 continue; 1359 } 1360 smb_session_list_signal(&ld->ld_session_list); 1361 smb_soshutdown(ld->ld_so); 1362 smb_sodestroy(ld->ld_so); 1363 ld->ld_so = NULL; 1364 break; 1365 } 1366 1367 return (rc); 1368 } 1369 1370 /* 1371 * smb_server_lookup 1372 * 1373 * This function tries to find the server associated with the zone of the 1374 * caller. 1375 */ 1376 static int 1377 smb_server_lookup(smb_server_t **psv) 1378 { 1379 zoneid_t zid; 1380 smb_server_t *sv; 1381 1382 zid = getzoneid(); 1383 1384 smb_llist_enter(&smb_servers, RW_READER); 1385 sv = smb_llist_head(&smb_servers); 1386 while (sv) { 1387 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1388 if (sv->sv_zid == zid) { 1389 mutex_enter(&sv->sv_mutex); 1390 if (sv->sv_state != SMB_SERVER_STATE_DELETING) { 1391 sv->sv_refcnt++; 1392 mutex_exit(&sv->sv_mutex); 1393 smb_llist_exit(&smb_servers); 1394 *psv = sv; 1395 return (0); 1396 } 1397 mutex_exit(&sv->sv_mutex); 1398 break; 1399 } 1400 sv = smb_llist_next(&smb_servers, sv); 1401 } 1402 smb_llist_exit(&smb_servers); 1403 return (EPERM); 1404 } 1405 1406 /* 1407 * smb_server_release 1408 * 1409 * This function decrements the reference count of the server and signals its 1410 * condition variable if the state of the server is SMB_SERVER_STATE_DELETING. 1411 */ 1412 static void 1413 smb_server_release(smb_server_t *sv) 1414 { 1415 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1416 1417 mutex_enter(&sv->sv_mutex); 1418 ASSERT(sv->sv_refcnt); 1419 sv->sv_refcnt--; 1420 if ((sv->sv_refcnt == 0) && (sv->sv_state == SMB_SERVER_STATE_DELETING)) 1421 cv_signal(&sv->sv_cv); 1422 mutex_exit(&sv->sv_mutex); 1423 } 1424 1425 static int 1426 smb_server_ulist_geti(smb_session_list_t *se, uint32_t cookie, 1427 uint8_t *buf, uint32_t buf_len, uint_t *pbe) 1428 { 1429 smb_session_t *sn = NULL; 1430 smb_user_t *user; 1431 smb_llist_t *ulist; 1432 smb_opipe_context_t ctx; 1433 uint_t bytes_encoded; 1434 int rc = 0; 1435 int cnt = 0; 1436 1437 rw_enter(&se->se_lock, RW_READER); 1438 sn = list_head(&se->se_act.lst); 1439 while ((sn != NULL) && (rc == 0)) { 1440 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1441 ulist = &sn->s_user_list; 1442 smb_llist_enter(ulist, RW_READER); 1443 user = smb_llist_head(ulist); 1444 while ((user != NULL) && (rc == 0)) { 1445 ASSERT(user->u_magic == SMB_USER_MAGIC); 1446 mutex_enter(&user->u_mutex); 1447 if ((user->u_state == SMB_USER_STATE_LOGGED_IN) && 1448 (cookie == 0)) { 1449 smb_user_context_init(user, &ctx); 1450 rc = smb_opipe_context_encode(&ctx, buf, 1451 buf_len, &bytes_encoded); 1452 smb_user_context_fini(&ctx); 1453 if (rc == 0) { 1454 *pbe += bytes_encoded; 1455 buf += bytes_encoded; 1456 buf_len -= bytes_encoded; 1457 cnt++; 1458 } 1459 } 1460 mutex_exit(&user->u_mutex); 1461 user = smb_llist_next(ulist, user); 1462 if (cookie > 0) 1463 cookie--; 1464 } 1465 smb_llist_exit(ulist); 1466 sn = list_next(&se->se_act.lst, sn); 1467 } 1468 rw_exit(&se->se_lock); 1469 return (cnt); 1470 } 1471 1472 static void 1473 smb_server_store_cfg(smb_server_t *sv, smb_ioc_cfg_t *ioc) 1474 { 1475 if (ioc->maxconnections == 0) 1476 ioc->maxconnections = 0xFFFFFFFF; 1477 1478 smb_session_correct_keep_alive_values( 1479 &sv->sv_nbt_daemon.ld_session_list, ioc->keepalive); 1480 smb_session_correct_keep_alive_values( 1481 &sv->sv_tcp_daemon.ld_session_list, ioc->keepalive); 1482 1483 sv->sv_cfg.skc_maxworkers = ioc->maxworkers; 1484 sv->sv_cfg.skc_maxconnections = ioc->maxconnections; 1485 sv->sv_cfg.skc_keepalive = ioc->keepalive; 1486 sv->sv_cfg.skc_restrict_anon = ioc->restrict_anon; 1487 sv->sv_cfg.skc_signing_enable = ioc->signing_enable; 1488 sv->sv_cfg.skc_signing_required = ioc->signing_required; 1489 sv->sv_cfg.skc_oplock_enable = ioc->oplock_enable; 1490 sv->sv_cfg.skc_sync_enable = ioc->sync_enable; 1491 sv->sv_cfg.skc_secmode = ioc->secmode; 1492 sv->sv_cfg.skc_ipv6_enable = ioc->ipv6_enable; 1493 (void) strlcpy(sv->sv_cfg.skc_nbdomain, ioc->nbdomain, 1494 sizeof (sv->sv_cfg.skc_nbdomain)); 1495 (void) strlcpy(sv->sv_cfg.skc_fqdn, ioc->fqdn, 1496 sizeof (sv->sv_cfg.skc_fqdn)); 1497 (void) strlcpy(sv->sv_cfg.skc_hostname, ioc->hostname, 1498 sizeof (sv->sv_cfg.skc_hostname)); 1499 (void) strlcpy(sv->sv_cfg.skc_system_comment, ioc->system_comment, 1500 sizeof (sv->sv_cfg.skc_system_comment)); 1501 } 1502 1503 static int 1504 smb_server_fsop_start(smb_server_t *sv) 1505 { 1506 int error; 1507 1508 error = smb_node_root_init(rootdir, sv, &sv->si_root_smb_node); 1509 if (error != 0) 1510 sv->si_root_smb_node = NULL; 1511 1512 return (error); 1513 } 1514 1515 static void 1516 smb_server_fsop_stop(smb_server_t *sv) 1517 { 1518 if (sv->si_root_smb_node != NULL) { 1519 smb_vfs_rele_all(sv); 1520 smb_node_release(sv->si_root_smb_node); 1521 sv->si_root_smb_node = NULL; 1522 } 1523 } 1524