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 <netinet/in.h> 219 #include <netinet/in_systm.h> 220 #include <netinet/ip.h> 221 #include <netinet/ip_icmp.h> 222 #include <netinet/ip_var.h> 223 #include <netinet/tcp.h> 224 #include <smbsrv/smb_kproto.h> 225 #include <smbsrv/string.h> 226 #include <smbsrv/netbios.h> 227 #include <smbsrv/smb_fsops.h> 228 #include <smbsrv/smb_share.h> 229 #include <smbsrv/smb_door_svc.h> 230 #include <smbsrv/smb_kstat.h> 231 232 extern void smb_dispatch_kstat_init(void); 233 extern void smb_dispatch_kstat_fini(void); 234 extern void smb_reply_notify_change_request(smb_request_t *); 235 236 static int smb_server_kstat_init(smb_server_t *); 237 static void smb_server_kstat_fini(smb_server_t *); 238 static int smb_server_kstat_update_info(kstat_t *, int); 239 static void smb_server_timers(smb_thread_t *, void *); 240 static int smb_server_listen(smb_server_t *, smb_listener_daemon_t *, 241 in_port_t, int, int); 242 static int smb_server_lookup(smb_server_t **); 243 static void smb_server_release(smb_server_t *); 244 static void smb_server_store_cfg(smb_server_t *, smb_ioc_cfg_t *); 245 static void smb_server_stop(smb_server_t *); 246 static int smb_server_fsop_start(smb_server_t *); 247 static void smb_server_fsop_stop(smb_server_t *); 248 249 static void smb_server_disconnect_share(char *, smb_server_t *); 250 static void smb_server_thread_unexport(smb_thread_t *, void *); 251 252 static void smb_server_enum_private(smb_session_list_t *, smb_svcenum_t *); 253 static int smb_server_sesion_disconnect(smb_session_list_t *, const char *, 254 const char *); 255 static int smb_server_fclose(smb_session_list_t *, uint32_t); 256 257 static smb_llist_t smb_servers; 258 259 /* 260 * ***************************************************************************** 261 * **************** Functions called from the device interface ***************** 262 * ***************************************************************************** 263 * 264 * These functions typically have to determine the relevant smb server 265 * to which the call applies. 266 */ 267 268 /* 269 * smb_server_svc_init 270 * 271 * This function must be called from smb_drv_attach(). 272 */ 273 int 274 smb_server_svc_init(void) 275 { 276 int rc = 0; 277 278 while (rc == 0) { 279 if (rc = smb_mbc_init()) 280 continue; 281 if (rc = smb_vop_init()) 282 continue; 283 if (rc = smb_node_init()) 284 continue; 285 if (rc = smb_fem_init()) 286 continue; 287 if (rc = smb_user_init()) 288 continue; 289 if (rc = smb_notify_init()) 290 continue; 291 if (rc = smb_net_init()) 292 continue; 293 smb_llist_constructor(&smb_servers, sizeof (smb_server_t), 294 offsetof(smb_server_t, sv_lnd)); 295 return (0); 296 } 297 smb_net_fini(); 298 smb_notify_fini(); 299 smb_user_fini(); 300 smb_fem_fini(); 301 smb_node_fini(); 302 smb_vop_fini(); 303 smb_mbc_fini(); 304 return (rc); 305 } 306 307 /* 308 * smb_server_svc_fini 309 * 310 * This function must called from smb_drv_detach(). It will fail if servers 311 * still exist. 312 */ 313 int 314 smb_server_svc_fini(void) 315 { 316 int rc = EBUSY; 317 318 if (smb_llist_get_count(&smb_servers) == 0) { 319 smb_net_fini(); 320 smb_notify_fini(); 321 smb_user_fini(); 322 smb_fem_fini(); 323 smb_node_fini(); 324 smb_vop_fini(); 325 smb_mbc_fini(); 326 smb_llist_destructor(&smb_servers); 327 rc = 0; 328 } 329 return (rc); 330 } 331 332 /* 333 * smb_server_create 334 * 335 * This function will fail if there's already a server associated with the 336 * caller's zone. 337 */ 338 int 339 smb_server_create(void) 340 { 341 zoneid_t zid; 342 smb_server_t *sv; 343 344 zid = getzoneid(); 345 346 smb_llist_enter(&smb_servers, RW_WRITER); 347 sv = smb_llist_head(&smb_servers); 348 while (sv) { 349 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 350 if (sv->sv_zid == zid) { 351 smb_llist_exit(&smb_servers); 352 return (EPERM); 353 } 354 sv = smb_llist_next(&smb_servers, sv); 355 } 356 357 sv = kmem_zalloc(sizeof (smb_server_t), KM_NOSLEEP); 358 if (sv == NULL) { 359 smb_llist_exit(&smb_servers); 360 return (ENOMEM); 361 } 362 363 smb_llist_constructor(&sv->sv_vfs_list, sizeof (smb_vfs_t), 364 offsetof(smb_vfs_t, sv_lnd)); 365 366 smb_slist_constructor(&sv->sv_unexport_list, sizeof (smb_unexport_t), 367 offsetof(smb_unexport_t, ux_lnd)); 368 369 smb_session_list_constructor(&sv->sv_nbt_daemon.ld_session_list); 370 smb_session_list_constructor(&sv->sv_tcp_daemon.ld_session_list); 371 372 sv->si_cache_unexport = kmem_cache_create("smb_unexport_cache", 373 sizeof (smb_unexport_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 374 sv->si_cache_vfs = kmem_cache_create("smb_vfs_cache", 375 sizeof (smb_vfs_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 376 sv->si_cache_request = kmem_cache_create("smb_request_cache", 377 sizeof (smb_request_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 378 sv->si_cache_session = kmem_cache_create("smb_session_cache", 379 sizeof (smb_session_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 380 sv->si_cache_user = kmem_cache_create("smb_user_cache", 381 sizeof (smb_user_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 382 sv->si_cache_tree = kmem_cache_create("smb_tree_cache", 383 sizeof (smb_tree_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 384 sv->si_cache_ofile = kmem_cache_create("smb_ofile_cache", 385 sizeof (smb_ofile_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 386 sv->si_cache_odir = kmem_cache_create("smb_odir_cache", 387 sizeof (smb_odir_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 388 389 smb_thread_init(&sv->si_thread_timers, 390 "smb_timers", smb_server_timers, sv, 391 NULL, NULL); 392 393 smb_thread_init(&sv->si_thread_unexport, "smb_thread_unexport", 394 smb_server_thread_unexport, sv, NULL, NULL); 395 396 sv->sv_pid = curproc->p_pid; 397 398 smb_kdoor_clnt_init(); 399 smb_opipe_door_init(); 400 (void) smb_server_kstat_init(sv); 401 402 mutex_init(&sv->sv_mutex, NULL, MUTEX_DEFAULT, NULL); 403 cv_init(&sv->sv_cv, NULL, CV_DEFAULT, NULL); 404 sv->sv_state = SMB_SERVER_STATE_CREATED; 405 sv->sv_magic = SMB_SERVER_MAGIC; 406 sv->sv_zid = zid; 407 408 smb_llist_insert_tail(&smb_servers, sv); 409 smb_llist_exit(&smb_servers); 410 return (0); 411 } 412 413 /* 414 * smb_server_delete 415 * 416 * This function will delete the server passed in. It will make sure that all 417 * activity associated that server has ceased before destroying it. 418 */ 419 int 420 smb_server_delete(void) 421 { 422 smb_server_t *sv; 423 smb_unexport_t *ux; 424 int rc; 425 426 rc = smb_server_lookup(&sv); 427 if (rc != 0) 428 return (rc); 429 430 mutex_enter(&sv->sv_mutex); 431 switch (sv->sv_state) { 432 case SMB_SERVER_STATE_RUNNING: 433 { 434 boolean_t nbt = B_FALSE; 435 boolean_t tcp = B_FALSE; 436 437 if (sv->sv_nbt_daemon.ld_kth) { 438 tsignal(sv->sv_nbt_daemon.ld_kth, SIGINT); 439 nbt = B_TRUE; 440 } 441 if (sv->sv_tcp_daemon.ld_kth) { 442 tsignal(sv->sv_tcp_daemon.ld_kth, SIGINT); 443 tcp = B_TRUE; 444 } 445 sv->sv_state = SMB_SERVER_STATE_DELETING; 446 mutex_exit(&sv->sv_mutex); 447 if (nbt) 448 thread_join(sv->sv_nbt_daemon.ld_ktdid); 449 if (tcp) 450 thread_join(sv->sv_tcp_daemon.ld_ktdid); 451 mutex_enter(&sv->sv_mutex); 452 break; 453 } 454 case SMB_SERVER_STATE_CONFIGURED: 455 case SMB_SERVER_STATE_CREATED: 456 sv->sv_state = SMB_SERVER_STATE_DELETING; 457 break; 458 default: 459 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 460 mutex_exit(&sv->sv_mutex); 461 smb_server_release(sv); 462 return (ENOTTY); 463 } 464 465 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 466 467 sv->sv_refcnt--; 468 while (sv->sv_refcnt) 469 cv_wait(&sv->sv_cv, &sv->sv_mutex); 470 471 mutex_exit(&sv->sv_mutex); 472 473 smb_llist_enter(&smb_servers, RW_WRITER); 474 smb_llist_remove(&smb_servers, sv); 475 smb_llist_exit(&smb_servers); 476 477 smb_server_stop(sv); 478 rw_destroy(&sv->sv_cfg_lock); 479 smb_opipe_door_fini(); 480 smb_kdoor_clnt_fini(); 481 smb_server_kstat_fini(sv); 482 smb_llist_destructor(&sv->sv_vfs_list); 483 484 while ((ux = list_head(&sv->sv_unexport_list.sl_list)) != NULL) { 485 smb_slist_remove(&sv->sv_unexport_list, ux); 486 kmem_cache_free(sv->si_cache_unexport, ux); 487 } 488 smb_slist_destructor(&sv->sv_unexport_list); 489 490 kmem_cache_destroy(sv->si_cache_unexport); 491 kmem_cache_destroy(sv->si_cache_vfs); 492 kmem_cache_destroy(sv->si_cache_request); 493 kmem_cache_destroy(sv->si_cache_session); 494 kmem_cache_destroy(sv->si_cache_user); 495 kmem_cache_destroy(sv->si_cache_tree); 496 kmem_cache_destroy(sv->si_cache_ofile); 497 kmem_cache_destroy(sv->si_cache_odir); 498 499 smb_thread_destroy(&sv->si_thread_timers); 500 smb_thread_destroy(&sv->si_thread_unexport); 501 mutex_destroy(&sv->sv_mutex); 502 cv_destroy(&sv->sv_cv); 503 sv->sv_magic = 0; 504 kmem_free(sv, sizeof (smb_server_t)); 505 506 return (0); 507 } 508 509 /* 510 * smb_server_configure 511 */ 512 int 513 smb_server_configure(smb_ioc_cfg_t *ioc) 514 { 515 int rc = 0; 516 smb_server_t *sv; 517 518 rc = smb_server_lookup(&sv); 519 if (rc) 520 return (rc); 521 522 mutex_enter(&sv->sv_mutex); 523 switch (sv->sv_state) { 524 case SMB_SERVER_STATE_CREATED: 525 smb_server_store_cfg(sv, ioc); 526 sv->sv_state = SMB_SERVER_STATE_CONFIGURED; 527 break; 528 529 case SMB_SERVER_STATE_CONFIGURED: 530 smb_server_store_cfg(sv, ioc); 531 break; 532 533 case SMB_SERVER_STATE_RUNNING: 534 rw_enter(&sv->sv_cfg_lock, RW_WRITER); 535 smb_server_store_cfg(sv, ioc); 536 rw_exit(&sv->sv_cfg_lock); 537 break; 538 539 default: 540 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 541 rc = EFAULT; 542 break; 543 } 544 mutex_exit(&sv->sv_mutex); 545 546 smb_server_release(sv); 547 548 return (rc); 549 } 550 551 /* 552 * smb_server_start 553 */ 554 int 555 smb_server_start(smb_ioc_start_t *ioc) 556 { 557 int rc = 0; 558 smb_server_t *sv; 559 560 rc = smb_server_lookup(&sv); 561 if (rc) 562 return (rc); 563 564 mutex_enter(&sv->sv_mutex); 565 switch (sv->sv_state) { 566 case SMB_SERVER_STATE_CONFIGURED: 567 smb_codepage_init(); 568 569 sv->sv_thread_pool = taskq_create("smb_workers", 570 sv->sv_cfg.skc_maxworkers, SMB_WORKER_PRIORITY, 571 sv->sv_cfg.skc_maxworkers, INT_MAX, 572 TASKQ_DYNAMIC|TASKQ_PREPOPULATE); 573 574 sv->sv_session = smb_session_create(NULL, 0, sv, 0); 575 576 if (sv->sv_thread_pool == NULL || sv->sv_session == NULL) { 577 rc = ENOMEM; 578 break; 579 } 580 581 if (rc = smb_server_fsop_start(sv)) 582 break; 583 ASSERT(sv->sv_lmshrd == NULL); 584 sv->sv_lmshrd = smb_kshare_init(ioc->lmshrd); 585 if (sv->sv_lmshrd == NULL) 586 break; 587 if (rc = smb_kdoor_clnt_open(ioc->udoor)) 588 break; 589 if (rc = smb_thread_start(&sv->si_thread_timers)) 590 break; 591 if (rc = smb_thread_start(&sv->si_thread_unexport)) 592 break; 593 if (rc = smb_opipe_door_open(ioc->opipe)) { 594 cmn_err(CE_WARN, "Cannot open opipe door"); 595 break; 596 } 597 598 sv->sv_state = SMB_SERVER_STATE_RUNNING; 599 mutex_exit(&sv->sv_mutex); 600 smb_server_release(sv); 601 return (0); 602 default: 603 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 604 (sv->sv_state == SMB_SERVER_STATE_RUNNING) || 605 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 606 mutex_exit(&sv->sv_mutex); 607 smb_server_release(sv); 608 return (ENOTTY); 609 } 610 611 smb_server_stop(sv); 612 mutex_exit(&sv->sv_mutex); 613 smb_server_release(sv); 614 return (rc); 615 } 616 617 /* 618 * smb_server_nbt_listen: SMB-over-NetBIOS service 619 * 620 * Traditional SMB service over NetBIOS (port 139), which requires 621 * that a NetBIOS session be established. 622 */ 623 int 624 smb_server_nbt_listen(smb_ioc_listen_t *ioc) 625 { 626 smb_server_t *sv; 627 int rc; 628 629 rc = smb_server_lookup(&sv); 630 if (rc) 631 return (rc); 632 633 mutex_enter(&sv->sv_mutex); 634 switch (sv->sv_state) { 635 case SMB_SERVER_STATE_RUNNING: 636 if ((sv->sv_nbt_daemon.ld_kth != NULL) && 637 (sv->sv_nbt_daemon.ld_kth != curthread)) { 638 mutex_exit(&sv->sv_mutex); 639 smb_server_release(sv); 640 return (EACCES); 641 } else { 642 sv->sv_nbt_daemon.ld_kth = curthread; 643 sv->sv_nbt_daemon.ld_ktdid = curthread->t_did; 644 } 645 break; 646 default: 647 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 648 (sv->sv_state == SMB_SERVER_STATE_CONFIGURED) || 649 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 650 mutex_exit(&sv->sv_mutex); 651 smb_server_release(sv); 652 return (EFAULT); 653 } 654 mutex_exit(&sv->sv_mutex); 655 656 /* 657 * netbios must be ipv4 658 */ 659 rc = smb_server_listen(sv, &sv->sv_nbt_daemon, IPPORT_NETBIOS_SSN, 660 AF_INET, ioc->error); 661 662 if (rc) { 663 mutex_enter(&sv->sv_mutex); 664 sv->sv_nbt_daemon.ld_kth = NULL; 665 mutex_exit(&sv->sv_mutex); 666 } 667 668 smb_server_release(sv); 669 return (rc); 670 } 671 672 int 673 smb_server_tcp_listen(smb_ioc_listen_t *ioc) 674 { 675 smb_server_t *sv; 676 int rc; 677 678 rc = smb_server_lookup(&sv); 679 if (rc) 680 return (rc); 681 682 mutex_enter(&sv->sv_mutex); 683 switch (sv->sv_state) { 684 case SMB_SERVER_STATE_RUNNING: 685 if ((sv->sv_tcp_daemon.ld_kth) && 686 (sv->sv_tcp_daemon.ld_kth != curthread)) { 687 mutex_exit(&sv->sv_mutex); 688 smb_server_release(sv); 689 return (EACCES); 690 } else { 691 sv->sv_tcp_daemon.ld_kth = curthread; 692 sv->sv_tcp_daemon.ld_ktdid = curthread->t_did; 693 } 694 break; 695 default: 696 ASSERT((sv->sv_state == SMB_SERVER_STATE_CREATED) || 697 (sv->sv_state == SMB_SERVER_STATE_CONFIGURED) || 698 (sv->sv_state == SMB_SERVER_STATE_DELETING)); 699 mutex_exit(&sv->sv_mutex); 700 smb_server_release(sv); 701 return (EFAULT); 702 } 703 mutex_exit(&sv->sv_mutex); 704 705 if (sv->sv_cfg.skc_ipv6_enable) 706 rc = smb_server_listen(sv, &sv->sv_tcp_daemon, 707 IPPORT_SMB, AF_INET6, ioc->error); 708 else 709 rc = smb_server_listen(sv, &sv->sv_tcp_daemon, 710 IPPORT_SMB, AF_INET, ioc->error); 711 if (rc) { 712 mutex_enter(&sv->sv_mutex); 713 sv->sv_tcp_daemon.ld_kth = NULL; 714 mutex_exit(&sv->sv_mutex); 715 } 716 717 smb_server_release(sv); 718 return (rc); 719 } 720 721 /* 722 * smb_server_nbt_receive 723 */ 724 int 725 smb_server_nbt_receive(void) 726 { 727 int rc; 728 smb_server_t *sv; 729 730 if ((rc = smb_server_lookup(&sv)) == 0) { 731 rc = smb_session_daemon(&sv->sv_nbt_daemon.ld_session_list); 732 smb_server_release(sv); 733 } 734 735 return (rc); 736 } 737 738 /* 739 * smb_server_tcp_receive 740 */ 741 int 742 smb_server_tcp_receive(void) 743 { 744 int rc; 745 smb_server_t *sv; 746 747 if ((rc = smb_server_lookup(&sv)) == 0) { 748 rc = smb_session_daemon(&sv->sv_tcp_daemon.ld_session_list); 749 smb_server_release(sv); 750 } 751 752 return (rc); 753 } 754 755 int 756 smb_server_set_gmtoff(smb_ioc_gmt_t *ioc) 757 { 758 int rc; 759 smb_server_t *sv; 760 761 if ((rc = smb_server_lookup(&sv)) == 0) { 762 sv->si_gmtoff = ioc->offset; 763 smb_server_release(sv); 764 } 765 766 return (rc); 767 } 768 769 int 770 smb_server_numopen(smb_ioc_opennum_t *ioc) 771 { 772 smb_server_t *sv; 773 int rc; 774 775 if ((rc = smb_server_lookup(&sv)) == 0) { 776 ioc->open_users = sv->sv_open_users; 777 ioc->open_trees = sv->sv_open_trees; 778 ioc->open_files = sv->sv_open_files; 779 smb_server_release(sv); 780 } 781 return (rc); 782 } 783 784 /* 785 * Enumerate objects within the server. The svcenum provides the 786 * enumeration context, i.e. what the caller want to get back. 787 */ 788 int 789 smb_server_enum(smb_ioc_svcenum_t *ioc) 790 { 791 smb_svcenum_t *svcenum = &ioc->svcenum; 792 smb_server_t *sv; 793 smb_session_list_t *se; 794 int rc; 795 796 switch (svcenum->se_type) { 797 case SMB_SVCENUM_TYPE_USER: 798 case SMB_SVCENUM_TYPE_TREE: 799 case SMB_SVCENUM_TYPE_FILE: 800 break; 801 default: 802 return (EINVAL); 803 } 804 805 if ((rc = smb_server_lookup(&sv)) != 0) 806 return (rc); 807 808 svcenum->se_bavail = svcenum->se_buflen; 809 svcenum->se_bused = 0; 810 svcenum->se_nitems = 0; 811 812 se = &sv->sv_nbt_daemon.ld_session_list; 813 smb_server_enum_private(se, svcenum); 814 815 se = &sv->sv_tcp_daemon.ld_session_list; 816 smb_server_enum_private(se, svcenum); 817 818 smb_server_release(sv); 819 return (0); 820 } 821 822 /* 823 * Look for sessions to disconnect by client and user name. 824 */ 825 int 826 smb_server_session_close(smb_ioc_session_t *ioc) 827 { 828 smb_session_list_t *se; 829 smb_server_t *sv; 830 int nbt_cnt; 831 int tcp_cnt; 832 int rc; 833 834 if ((rc = smb_server_lookup(&sv)) != 0) 835 return (rc); 836 837 se = &sv->sv_nbt_daemon.ld_session_list; 838 nbt_cnt = smb_server_sesion_disconnect(se, ioc->client, ioc->username); 839 840 se = &sv->sv_tcp_daemon.ld_session_list; 841 tcp_cnt = smb_server_sesion_disconnect(se, ioc->client, ioc->username); 842 843 smb_server_release(sv); 844 845 if ((nbt_cnt == 0) && (tcp_cnt == 0)) 846 return (ENOENT); 847 return (0); 848 } 849 850 /* 851 * Close a file by uniqid. 852 */ 853 int 854 smb_server_file_close(smb_ioc_fileid_t *ioc) 855 { 856 uint32_t uniqid = ioc->uniqid; 857 smb_session_list_t *se; 858 smb_server_t *sv; 859 int rc; 860 861 if ((rc = smb_server_lookup(&sv)) != 0) 862 return (rc); 863 864 se = &sv->sv_nbt_daemon.ld_session_list; 865 rc = smb_server_fclose(se, uniqid); 866 867 if (rc == ENOENT) { 868 se = &sv->sv_tcp_daemon.ld_session_list; 869 rc = smb_server_fclose(se, uniqid); 870 } 871 872 smb_server_release(sv); 873 return (rc); 874 } 875 876 /* 877 * These functions determine the relevant smb server to which the call apply. 878 */ 879 880 uint32_t 881 smb_server_get_session_count(void) 882 { 883 smb_server_t *sv; 884 uint32_t counter = 0; 885 886 if (smb_server_lookup(&sv)) 887 return (0); 888 889 rw_enter(&sv->sv_nbt_daemon.ld_session_list.se_lock, RW_READER); 890 counter = sv->sv_nbt_daemon.ld_session_list.se_act.count; 891 rw_exit(&sv->sv_nbt_daemon.ld_session_list.se_lock); 892 rw_enter(&sv->sv_tcp_daemon.ld_session_list.se_lock, RW_READER); 893 counter += sv->sv_tcp_daemon.ld_session_list.se_act.count; 894 rw_exit(&sv->sv_tcp_daemon.ld_session_list.se_lock); 895 896 smb_server_release(sv); 897 898 return (counter); 899 } 900 901 /* 902 * smb_server_disconnect_share 903 * 904 * Disconnects the specified share. This function should be called after the 905 * share passed in has been made unavailable by the "share manager". 906 */ 907 static void 908 smb_server_disconnect_share(char *sharename, smb_server_t *sv) 909 { 910 smb_session_disconnect_share(&sv->sv_nbt_daemon.ld_session_list, 911 sharename); 912 smb_session_disconnect_share(&sv->sv_tcp_daemon.ld_session_list, 913 sharename); 914 } 915 916 /* 917 * smb_server_share_export() 918 * 919 * This function handles kernel processing at share enable time. 920 * 921 * At share-enable time (LMSHRD_ADD), the file system corresponding to 922 * the share is checked for characteristics that are required for SMB 923 * sharing. If this check passes, then a hold is taken on the root vnode 924 * of the file system (or a reference count on the corresponding smb_vfs_t 925 * is bumped), preventing an unmount. (See smb_vfs_hold()). 926 */ 927 928 int 929 smb_server_share_export(smb_ioc_share_t *ioc) 930 { 931 smb_server_t *sv; 932 int error = 0; 933 smb_node_t *fnode = NULL; 934 smb_node_t *dnode; 935 char last_comp[MAXNAMELEN]; 936 smb_request_t *sr; 937 938 if (smb_server_lookup(&sv)) 939 return (EINVAL); 940 941 mutex_enter(&sv->sv_mutex); 942 switch (sv->sv_state) { 943 case SMB_SERVER_STATE_RUNNING: 944 break; 945 default: 946 mutex_exit(&sv->sv_mutex); 947 return (ENOTACTIVE); 948 } 949 mutex_exit(&sv->sv_mutex); 950 951 sr = smb_request_alloc(sv->sv_session, 0); 952 if (sr == NULL) { 953 smb_server_release(sv); 954 return (ENOMEM); 955 } 956 957 sr->user_cr = kcred; 958 959 error = smb_pathname_reduce(sr, kcred, ioc->path, 960 NULL, NULL, &dnode, last_comp); 961 962 if (error) { 963 smb_request_free(sr); 964 smb_server_release(sv); 965 return (error); 966 } 967 968 error = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS, 969 sv->si_root_smb_node, dnode, last_comp, &fnode); 970 971 smb_node_release(dnode); 972 973 if (error) { 974 smb_request_free(sr); 975 smb_server_release(sv); 976 return (error); 977 } 978 979 ASSERT(fnode->vp && fnode->vp->v_vfsp); 980 981 #ifdef SMB_ENFORCE_NODEV 982 if (vfs_optionisset(fnode->vp->v_vfsp, MNTOPT_NODEVICES, NULL) == 0) { 983 smb_node_release(fnode); 984 smb_request_free(sr); 985 smb_server_release(sv); 986 return (EINVAL); 987 } 988 #endif /* SMB_ENFORCE_NODEV */ 989 990 if (!smb_vfs_hold(sv, fnode->vp->v_vfsp)) 991 error = ENOMEM; 992 993 /* 994 * The refcount on the smb_vfs has been incremented. 995 * If it wasn't already, a hold has also been taken 996 * on the root vnode of the file system. 997 */ 998 999 smb_node_release(fnode); 1000 smb_request_free(sr); 1001 smb_server_release(sv); 1002 return (error); 1003 } 1004 1005 /* 1006 * smb_server_share_unexport() 1007 * 1008 * This function is invoked when a share is disabled to disconnect trees 1009 * and close files. Cleaning up may involve VOP and/or VFS calls, which 1010 * may conflict/deadlock with stuck threads if something is amiss with the 1011 * file system. Queueing the request for asynchronous processing allows the 1012 * call to return immediately so that, if the unshare is being done in the 1013 * context of a forced unmount, the forced unmount will always be able to 1014 * proceed (unblocking stuck I/O and eventually allowing all blocked unshare 1015 * processes to complete). 1016 * 1017 * The path lookup to find the root vnode of the VFS in question and the 1018 * release of this vnode are done synchronously prior to any associated 1019 * unmount. Doing these asynchronous to an associated unmount could run 1020 * the risk of a spurious EBUSY for a standard unmount or an EIO during 1021 * the path lookup due to a forced unmount finishing first. 1022 */ 1023 1024 int 1025 smb_server_share_unexport(smb_ioc_share_t *ioc) 1026 { 1027 smb_server_t *sv; 1028 smb_request_t *sr; 1029 smb_unexport_t *ux; 1030 smb_node_t *fnode = NULL; 1031 smb_node_t *dnode; 1032 char last_comp[MAXNAMELEN]; 1033 int rc; 1034 1035 if ((rc = smb_server_lookup(&sv))) 1036 return (rc); 1037 1038 mutex_enter(&sv->sv_mutex); 1039 switch (sv->sv_state) { 1040 case SMB_SERVER_STATE_RUNNING: 1041 break; 1042 default: 1043 mutex_exit(&sv->sv_mutex); 1044 return (ENOTACTIVE); 1045 } 1046 mutex_exit(&sv->sv_mutex); 1047 1048 sr = smb_request_alloc(sv->sv_session, 0); 1049 1050 if (sr == NULL) { 1051 smb_server_release(sv); 1052 return (ENOMEM); 1053 } 1054 1055 sr->user_cr = kcred; 1056 1057 rc = smb_pathname_reduce(sr, kcred, ioc->path, NULL, NULL, 1058 &dnode, last_comp); 1059 1060 if (rc) { 1061 smb_request_free(sr); 1062 smb_server_release(sv); 1063 return (rc); 1064 } 1065 1066 rc = smb_fsop_lookup(sr, kcred, SMB_FOLLOW_LINKS, sv->si_root_smb_node, 1067 dnode, last_comp, &fnode); 1068 1069 smb_node_release(dnode); 1070 smb_request_free(sr); 1071 1072 if (rc) { 1073 smb_server_release(sv); 1074 return (rc); 1075 } 1076 1077 ASSERT(fnode->vp && fnode->vp->v_vfsp); 1078 1079 smb_vfs_rele(sv, fnode->vp->v_vfsp); 1080 1081 smb_node_release(fnode); 1082 1083 ux = kmem_cache_alloc(sv->si_cache_unexport, KM_SLEEP); 1084 1085 (void) strlcpy(ux->ux_sharename, ioc->name, MAXNAMELEN); 1086 1087 smb_slist_insert_tail(&sv->sv_unexport_list, ux); 1088 smb_thread_signal(&sv->si_thread_unexport); 1089 1090 smb_server_release(sv); 1091 return (0); 1092 } 1093 1094 /* 1095 * smb_server_thread_unexport 1096 * 1097 * This function processes the unexport event list and disconnects shares 1098 * asynchronously. The function executes as a zone-specific thread. 1099 * 1100 * The server arg passed in is safe to use without a reference count, because 1101 * the server cannot be deleted until smb_thread_stop()/destroy() return, 1102 * which is also when the thread exits. 1103 */ 1104 1105 static void 1106 smb_server_thread_unexport(smb_thread_t *thread, void *arg) 1107 { 1108 smb_server_t *sv = (smb_server_t *)arg; 1109 smb_unexport_t *ux; 1110 1111 while (smb_thread_continue(thread)) { 1112 while ((ux = list_head(&sv->sv_unexport_list.sl_list)) 1113 != NULL) { 1114 smb_slist_remove(&sv->sv_unexport_list, ux); 1115 smb_server_disconnect_share(ux->ux_sharename, sv); 1116 kmem_cache_free(sv->si_cache_unexport, ux); 1117 } 1118 } 1119 } 1120 1121 /* 1122 * This is a special interface that will be utilized by ZFS to cause a share to 1123 * be added/removed. 1124 * 1125 * arg is either a lmshare_info_t or share_name from userspace. 1126 * It will need to be copied into the kernel. It is lmshare_info_t 1127 * for add operations and share_name for delete operations. 1128 */ 1129 int 1130 smb_server_share(void *arg, boolean_t add_share) 1131 { 1132 smb_server_t *sv; 1133 int rc; 1134 1135 rc = smb_server_lookup(&sv); 1136 if (rc == 0) { 1137 mutex_enter(&sv->sv_mutex); 1138 switch (sv->sv_state) { 1139 case SMB_SERVER_STATE_RUNNING: 1140 mutex_exit(&sv->sv_mutex); 1141 (void) smb_kshare_upcall(sv->sv_lmshrd, arg, add_share); 1142 break; 1143 default: 1144 mutex_exit(&sv->sv_mutex); 1145 break; 1146 } 1147 smb_server_release(sv); 1148 } 1149 return (0); 1150 } 1151 1152 /* 1153 * ***************************************************************************** 1154 * **************** Functions called from the internal layers ****************** 1155 * ***************************************************************************** 1156 * 1157 * These functions are provided the relevant smb server by the caller. 1158 */ 1159 1160 void 1161 smb_server_reconnection_check(smb_server_t *sv, smb_session_t *session) 1162 { 1163 ASSERT(sv == session->s_server); 1164 1165 smb_session_reconnection_check(&sv->sv_nbt_daemon.ld_session_list, 1166 session); 1167 smb_session_reconnection_check(&sv->sv_tcp_daemon.ld_session_list, 1168 session); 1169 } 1170 1171 void 1172 smb_server_get_cfg(smb_server_t *sv, smb_kmod_cfg_t *cfg) 1173 { 1174 rw_enter(&sv->sv_cfg_lock, RW_READER); 1175 bcopy(&sv->sv_cfg, cfg, sizeof (*cfg)); 1176 rw_exit(&sv->sv_cfg_lock); 1177 } 1178 1179 /* 1180 * ***************************************************************************** 1181 * *************************** Static Functions ******************************** 1182 * ***************************************************************************** 1183 */ 1184 1185 static void 1186 smb_server_timers(smb_thread_t *thread, void *arg) 1187 { 1188 smb_server_t *sv = (smb_server_t *)arg; 1189 1190 ASSERT(sv != NULL); 1191 1192 while (smb_thread_continue_timedwait(thread, 1 /* Seconds */)) { 1193 smb_session_timers(&sv->sv_nbt_daemon.ld_session_list); 1194 smb_session_timers(&sv->sv_tcp_daemon.ld_session_list); 1195 } 1196 } 1197 1198 /* 1199 * smb_server_kstat_init 1200 */ 1201 static int 1202 smb_server_kstat_init(smb_server_t *sv) 1203 { 1204 (void) snprintf(sv->sv_ksp_name, sizeof (sv->sv_ksp_name), "%s%d", 1205 SMBSRV_KSTAT_NAME, sv->sv_zid); 1206 1207 sv->sv_ksp = kstat_create(SMBSRV_KSTAT_MODULE, 0, sv->sv_ksp_name, 1208 SMBSRV_KSTAT_CLASS, KSTAT_TYPE_NAMED, 1209 sizeof (sv->sv_ks_data) / sizeof (kstat_named_t), 1210 KSTAT_FLAG_VIRTUAL); 1211 1212 if (sv->sv_ksp) { 1213 (void) strlcpy(sv->sv_ks_data.open_files.name, "open_files", 1214 sizeof (sv->sv_ks_data.open_files.name)); 1215 sv->sv_ks_data.open_files.data_type = KSTAT_DATA_UINT32; 1216 (void) strlcpy(sv->sv_ks_data.open_trees.name, "connections", 1217 sizeof (sv->sv_ks_data.open_trees.name)); 1218 sv->sv_ks_data.open_trees.data_type = KSTAT_DATA_UINT32; 1219 (void) strlcpy(sv->sv_ks_data.open_users.name, "sessions", 1220 sizeof (sv->sv_ks_data.open_users.name)); 1221 sv->sv_ks_data.open_users.data_type = KSTAT_DATA_UINT32; 1222 1223 mutex_init(&sv->sv_ksp_mutex, NULL, MUTEX_DEFAULT, NULL); 1224 sv->sv_ksp->ks_lock = &sv->sv_ksp_mutex; 1225 sv->sv_ksp->ks_data = (void *)&sv->sv_ks_data; 1226 sv->sv_ksp->ks_update = smb_server_kstat_update_info; 1227 kstat_install(sv->sv_ksp); 1228 } 1229 1230 /* create and initialize smb kstats - smb_dispatch stats */ 1231 smb_dispatch_kstat_init(); 1232 1233 return (0); 1234 } 1235 1236 /* 1237 * smb_server_kstat_fini 1238 */ 1239 static void 1240 smb_server_kstat_fini(smb_server_t *sv) 1241 { 1242 if (sv->sv_ksp) { 1243 kstat_delete(sv->sv_ksp); 1244 mutex_destroy(&sv->sv_ksp_mutex); 1245 sv->sv_ksp = NULL; 1246 } 1247 smb_dispatch_kstat_fini(); 1248 } 1249 1250 /* ARGSUSED */ 1251 static int 1252 smb_server_kstat_update_info(kstat_t *ksp, int rw) 1253 { 1254 smb_server_t *sv; 1255 1256 if (rw == KSTAT_WRITE) { 1257 return (EACCES); 1258 } else { 1259 ASSERT(MUTEX_HELD(ksp->ks_lock)); 1260 1261 _NOTE(LINTED("pointer cast may result in improper alignment")) 1262 sv = (smb_server_t *)((uint8_t *)(ksp->ks_data) - 1263 offsetof(smb_server_t, sv_ks_data)); 1264 1265 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1266 1267 sv->sv_ks_data.open_files.value.ui32 = sv->sv_open_files; 1268 sv->sv_ks_data.open_trees.value.ui32 = sv->sv_open_trees; 1269 sv->sv_ks_data.open_users.value.ui32 = sv->sv_open_users; 1270 } 1271 return (0); 1272 } 1273 1274 /* 1275 * smb_server_stop 1276 * 1277 * The mutex of the server must have been entered before calling this function. 1278 */ 1279 static void 1280 smb_server_stop(smb_server_t *sv) 1281 { 1282 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1283 1284 smb_opipe_door_close(); 1285 smb_thread_stop(&sv->si_thread_timers); 1286 smb_thread_stop(&sv->si_thread_unexport); 1287 smb_kdoor_clnt_close(); 1288 smb_kshare_fini(sv->sv_lmshrd); 1289 sv->sv_lmshrd = NULL; 1290 smb_server_fsop_stop(sv); 1291 1292 if (sv->sv_session) { 1293 smb_session_delete(sv->sv_session); 1294 sv->sv_session = NULL; 1295 } 1296 1297 if (sv->sv_thread_pool) { 1298 taskq_destroy(sv->sv_thread_pool); 1299 sv->sv_thread_pool = NULL; 1300 } 1301 } 1302 1303 static int 1304 smb_server_listen( 1305 smb_server_t *sv, 1306 smb_listener_daemon_t *ld, 1307 in_port_t port, 1308 int family, 1309 int pthread_create_error) 1310 { 1311 int rc; 1312 ksocket_t s_so; 1313 const uint32_t on = 1; 1314 const uint32_t off = 0; 1315 smb_session_t *session; 1316 1317 if (pthread_create_error) { 1318 /* 1319 * Delete the last session created. The user space thread 1320 * creation failed. 1321 */ 1322 smb_session_list_delete_tail(&ld->ld_session_list); 1323 } 1324 1325 if (ld->ld_so == NULL) { 1326 /* First time listener */ 1327 if (family == AF_INET) { 1328 ld->ld_sin.sin_family = (uint32_t)family; 1329 ld->ld_sin.sin_port = htons(port); 1330 ld->ld_sin.sin_addr.s_addr = htonl(INADDR_ANY); 1331 } else { 1332 ld->ld_sin6.sin6_family = (uint32_t)family; 1333 ld->ld_sin6.sin6_port = htons(port); 1334 (void) memset(&ld->ld_sin6.sin6_addr.s6_addr, 0, 1335 sizeof (ld->ld_sin6.sin6_addr.s6_addr)); 1336 } 1337 ld->ld_so = smb_socreate(family, SOCK_STREAM, 0); 1338 if (ld->ld_so) { 1339 1340 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1341 SO_MAC_EXEMPT, &off, sizeof (off), CRED()); 1342 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1343 SO_REUSEADDR, &on, sizeof (on), CRED()); 1344 1345 if (family == AF_INET) { 1346 rc = ksocket_bind(ld->ld_so, 1347 (struct sockaddr *)&ld->ld_sin, 1348 sizeof (ld->ld_sin), CRED()); 1349 } else { 1350 rc = ksocket_bind(ld->ld_so, 1351 (struct sockaddr *)&ld->ld_sin6, 1352 sizeof (ld->ld_sin6), CRED()); 1353 } 1354 if (rc == 0) { 1355 rc = ksocket_listen(ld->ld_so, 20, CRED()); 1356 if (rc < 0) { 1357 cmn_err(CE_WARN, 1358 "Port %d: listen failed", port); 1359 smb_soshutdown(ld->ld_so); 1360 smb_sodestroy(ld->ld_so); 1361 ld->ld_so = NULL; 1362 return (rc); 1363 } 1364 } else { 1365 cmn_err(CE_WARN, 1366 "Port %d: bind failed", port); 1367 smb_soshutdown(ld->ld_so); 1368 smb_sodestroy(ld->ld_so); 1369 ld->ld_so = NULL; 1370 return (rc); 1371 } 1372 } else { 1373 cmn_err(CE_WARN, 1374 "Port %d: socket create failed", port); 1375 return (ENOMEM); 1376 } 1377 } 1378 1379 DTRACE_PROBE1(so__wait__accept, struct sonode *, ld->ld_so); 1380 1381 for (;;) { 1382 rc = ksocket_accept(ld->ld_so, NULL, NULL, &s_so, CRED()); 1383 if (rc == 0) { 1384 uint32_t txbuf_size = 128*1024; 1385 uint32_t on = 1; 1386 1387 DTRACE_PROBE1(so__accept, struct sonode *, s_so); 1388 1389 (void) ksocket_setsockopt(s_so, IPPROTO_TCP, 1390 TCP_NODELAY, &on, sizeof (on), CRED()); 1391 (void) ksocket_setsockopt(s_so, SOL_SOCKET, 1392 SO_KEEPALIVE, &on, sizeof (on), CRED()); 1393 (void) ksocket_setsockopt(s_so, SOL_SOCKET, SO_SNDBUF, 1394 (const void *)&txbuf_size, sizeof (txbuf_size), 1395 CRED()); 1396 /* 1397 * Create a session for this connection. 1398 */ 1399 session = smb_session_create(s_so, port, sv, family); 1400 if (session) { 1401 smb_session_list_append(&ld->ld_session_list, 1402 session); 1403 break; 1404 } else { 1405 smb_soshutdown(s_so); 1406 smb_sodestroy(s_so); 1407 } 1408 continue; 1409 } 1410 smb_session_list_signal(&ld->ld_session_list); 1411 smb_soshutdown(ld->ld_so); 1412 smb_sodestroy(ld->ld_so); 1413 ld->ld_so = NULL; 1414 break; 1415 } 1416 1417 return (rc); 1418 } 1419 1420 /* 1421 * smb_server_lookup 1422 * 1423 * This function tries to find the server associated with the zone of the 1424 * caller. 1425 */ 1426 static int 1427 smb_server_lookup(smb_server_t **psv) 1428 { 1429 zoneid_t zid; 1430 smb_server_t *sv; 1431 1432 zid = getzoneid(); 1433 1434 smb_llist_enter(&smb_servers, RW_READER); 1435 sv = smb_llist_head(&smb_servers); 1436 while (sv) { 1437 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1438 if (sv->sv_zid == zid) { 1439 mutex_enter(&sv->sv_mutex); 1440 if (sv->sv_state != SMB_SERVER_STATE_DELETING) { 1441 sv->sv_refcnt++; 1442 mutex_exit(&sv->sv_mutex); 1443 smb_llist_exit(&smb_servers); 1444 *psv = sv; 1445 return (0); 1446 } 1447 mutex_exit(&sv->sv_mutex); 1448 break; 1449 } 1450 sv = smb_llist_next(&smb_servers, sv); 1451 } 1452 smb_llist_exit(&smb_servers); 1453 return (EPERM); 1454 } 1455 1456 /* 1457 * smb_server_release 1458 * 1459 * This function decrements the reference count of the server and signals its 1460 * condition variable if the state of the server is SMB_SERVER_STATE_DELETING. 1461 */ 1462 static void 1463 smb_server_release(smb_server_t *sv) 1464 { 1465 ASSERT(sv->sv_magic == SMB_SERVER_MAGIC); 1466 1467 mutex_enter(&sv->sv_mutex); 1468 ASSERT(sv->sv_refcnt); 1469 sv->sv_refcnt--; 1470 if ((sv->sv_refcnt == 0) && (sv->sv_state == SMB_SERVER_STATE_DELETING)) 1471 cv_signal(&sv->sv_cv); 1472 mutex_exit(&sv->sv_mutex); 1473 } 1474 1475 /* 1476 * Enumerate the users associated with a session list. 1477 */ 1478 static void 1479 smb_server_enum_private(smb_session_list_t *se, smb_svcenum_t *svcenum) 1480 { 1481 smb_session_t *sn; 1482 smb_llist_t *ulist; 1483 smb_user_t *user; 1484 int rc = 0; 1485 1486 rw_enter(&se->se_lock, RW_READER); 1487 sn = list_head(&se->se_act.lst); 1488 1489 while (sn != NULL) { 1490 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1491 ulist = &sn->s_user_list; 1492 smb_llist_enter(ulist, RW_READER); 1493 user = smb_llist_head(ulist); 1494 1495 while (user != NULL) { 1496 if (smb_user_hold(user)) { 1497 rc = smb_user_enum(user, svcenum); 1498 smb_user_release(user); 1499 } 1500 1501 user = smb_llist_next(ulist, user); 1502 } 1503 1504 smb_llist_exit(ulist); 1505 1506 if (rc != 0) 1507 break; 1508 1509 sn = list_next(&se->se_act.lst, sn); 1510 } 1511 1512 rw_exit(&se->se_lock); 1513 } 1514 1515 /* 1516 * Disconnect sessions associated with the specified client and username. 1517 * Empty strings are treated as wildcards. 1518 */ 1519 static int 1520 smb_server_sesion_disconnect(smb_session_list_t *se, 1521 const char *client, const char *name) 1522 { 1523 smb_session_t *sn; 1524 smb_llist_t *ulist; 1525 smb_user_t *user; 1526 boolean_t match; 1527 int count = 0; 1528 1529 rw_enter(&se->se_lock, RW_READER); 1530 sn = list_head(&se->se_act.lst); 1531 1532 while (sn != NULL) { 1533 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1534 1535 if ((*client != '\0') && (!smb_session_isclient(sn, client))) { 1536 sn = list_next(&se->se_act.lst, sn); 1537 continue; 1538 } 1539 1540 ulist = &sn->s_user_list; 1541 smb_llist_enter(ulist, RW_READER); 1542 user = smb_llist_head(ulist); 1543 1544 while (user != NULL) { 1545 if (smb_user_hold(user)) { 1546 match = (*name == '\0'); 1547 if (!match) 1548 match = smb_user_namecmp(user, name); 1549 1550 if (match) { 1551 smb_llist_exit(ulist); 1552 smb_user_logoff(user); 1553 ++count; 1554 smb_user_release(user); 1555 smb_llist_enter(ulist, RW_READER); 1556 user = smb_llist_head(ulist); 1557 continue; 1558 } 1559 1560 smb_user_release(user); 1561 } 1562 1563 user = smb_llist_next(ulist, user); 1564 } 1565 1566 smb_llist_exit(ulist); 1567 sn = list_next(&se->se_act.lst, sn); 1568 } 1569 1570 rw_exit(&se->se_lock); 1571 return (count); 1572 } 1573 1574 /* 1575 * Close a file by its unique id. 1576 */ 1577 static int 1578 smb_server_fclose(smb_session_list_t *se, uint32_t uniqid) 1579 { 1580 smb_session_t *sn; 1581 smb_llist_t *ulist; 1582 smb_user_t *user; 1583 int rc = ENOENT; 1584 1585 rw_enter(&se->se_lock, RW_READER); 1586 sn = list_head(&se->se_act.lst); 1587 1588 while ((sn != NULL) && (rc == ENOENT)) { 1589 ASSERT(sn->s_magic == SMB_SESSION_MAGIC); 1590 ulist = &sn->s_user_list; 1591 smb_llist_enter(ulist, RW_READER); 1592 user = smb_llist_head(ulist); 1593 1594 while ((user != NULL) && (rc == ENOENT)) { 1595 if (smb_user_hold(user)) { 1596 rc = smb_user_fclose(user, uniqid); 1597 smb_user_release(user); 1598 } 1599 1600 user = smb_llist_next(ulist, user); 1601 } 1602 1603 smb_llist_exit(ulist); 1604 sn = list_next(&se->se_act.lst, sn); 1605 } 1606 1607 rw_exit(&se->se_lock); 1608 return (rc); 1609 } 1610 1611 static void 1612 smb_server_store_cfg(smb_server_t *sv, smb_ioc_cfg_t *ioc) 1613 { 1614 if (ioc->maxconnections == 0) 1615 ioc->maxconnections = 0xFFFFFFFF; 1616 1617 smb_session_correct_keep_alive_values( 1618 &sv->sv_nbt_daemon.ld_session_list, ioc->keepalive); 1619 smb_session_correct_keep_alive_values( 1620 &sv->sv_tcp_daemon.ld_session_list, ioc->keepalive); 1621 1622 sv->sv_cfg.skc_maxworkers = ioc->maxworkers; 1623 sv->sv_cfg.skc_maxconnections = ioc->maxconnections; 1624 sv->sv_cfg.skc_keepalive = ioc->keepalive; 1625 sv->sv_cfg.skc_restrict_anon = ioc->restrict_anon; 1626 sv->sv_cfg.skc_signing_enable = ioc->signing_enable; 1627 sv->sv_cfg.skc_signing_required = ioc->signing_required; 1628 sv->sv_cfg.skc_oplock_enable = ioc->oplock_enable; 1629 sv->sv_cfg.skc_sync_enable = ioc->sync_enable; 1630 sv->sv_cfg.skc_secmode = ioc->secmode; 1631 sv->sv_cfg.skc_ipv6_enable = ioc->ipv6_enable; 1632 (void) strlcpy(sv->sv_cfg.skc_nbdomain, ioc->nbdomain, 1633 sizeof (sv->sv_cfg.skc_nbdomain)); 1634 (void) strlcpy(sv->sv_cfg.skc_fqdn, ioc->fqdn, 1635 sizeof (sv->sv_cfg.skc_fqdn)); 1636 (void) strlcpy(sv->sv_cfg.skc_hostname, ioc->hostname, 1637 sizeof (sv->sv_cfg.skc_hostname)); 1638 (void) strlcpy(sv->sv_cfg.skc_system_comment, ioc->system_comment, 1639 sizeof (sv->sv_cfg.skc_system_comment)); 1640 } 1641 1642 static int 1643 smb_server_fsop_start(smb_server_t *sv) 1644 { 1645 int error; 1646 1647 error = smb_node_root_init(rootdir, sv, &sv->si_root_smb_node); 1648 if (error != 0) 1649 sv->si_root_smb_node = NULL; 1650 1651 return (error); 1652 } 1653 1654 static void 1655 smb_server_fsop_stop(smb_server_t *sv) 1656 { 1657 if (sv->si_root_smb_node != NULL) { 1658 smb_vfs_rele_all(sv); 1659 smb_node_release(sv->si_root_smb_node); 1660 sv->si_root_smb_node = NULL; 1661 } 1662 } 1663
Indexes created Sat Nov 21 18:49:29 UTC 2009
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