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 (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2015 Nexenta Systems, Inc. All rights reserved. 24 * Copyright (c) 2017 by Delphix. All rights reserved. 25 */ 26 27 /* 28 * General Structures Layout 29 * ------------------------- 30 * 31 * This is a simplified diagram showing the relationship between most of the 32 * main structures. 33 * 34 * +-------------------+ 35 * | SMB_SERVER | 36 * +-------------------+ 37 * | 38 * | 39 * v 40 * +-------------------+ +-------------------+ +-------------------+ 41 * | SESSION |<----->| SESSION |......| SESSION | 42 * +-------------------+ +-------------------+ +-------------------+ 43 * | 44 * | 45 * v 46 * +-------------------+ +-------------------+ +-------------------+ 47 * | USER |<----->| USER |......| USER | 48 * +-------------------+ +-------------------+ +-------------------+ 49 * | 50 * | 51 * v 52 * +-------------------+ +-------------------+ +-------------------+ 53 * | TREE |<----->| TREE |......| TREE | 54 * +-------------------+ +-------------------+ +-------------------+ 55 * | | 56 * | | 57 * | v 58 * | +-------+ +-------+ +-------+ 59 * | | OFILE |<----->| OFILE |......| OFILE | 60 * | +-------+ +-------+ +-------+ 61 * | 62 * | 63 * v 64 * +-------+ +------+ +------+ 65 * | ODIR |<----->| ODIR |......| ODIR | 66 * +-------+ +------+ +------+ 67 * 68 * 69 * Module Interface Overview 70 * ------------------------- 71 * 72 * 73 * +===================================+ 74 * | smbd daemon | 75 * +===================================+ 76 * | | ^ 77 * | | | 78 * User | | | 79 * -----------|--------------|----------------|-------------------------------- 80 * Kernel | | | 81 * | | | 82 * | | | 83 * +=========|==============|================|=================+ 84 * | v v | | 85 * | +-----------+ +--------------------+ +------------------+ | 86 * | | IO | | Kernel Door Server | | User Door Servers| | 87 * | | Interface | | Interface | | Interface | | 88 * | +-----------+ +--------------------+ +------------------+ | 89 * | | | ^ ^ | 90 * | v v | | | +=========+ 91 * | +-----------------------------------+ | | | | 92 * | + SMB Server Management (this file) |<------------------| ZFS | 93 * | +-----------------------------------+ | | | | 94 * | | | | Module | 95 * | +-----------------------------------+ | | | | 96 * | + SMB Server Internal Layers |------+ | +=========+ 97 * | +-----------------------------------+ | 98 * | | 99 * | | 100 * +===========================================================+ 101 * 102 * 103 * Server State Machine 104 * -------------------- 105 * | 106 * | T0 107 * | 108 * v 109 * +-----------------------------+ 110 * | SMB_SERVER_STATE_CREATED | 111 * +-----------------------------+ 112 * | 113 * | T1 114 * | 115 * v 116 * +-----------------------------+ 117 * | SMB_SERVER_STATE_CONFIGURED | 118 * +-----------------------------+ 119 * | 120 * | T2 121 * | 122 * v 123 * +-----------------------------+ 124 * | SMB_SERVER_STATE_RUNNING / | 125 * | SMB_SERVER_STATE_STOPPING | 126 * +-----------------------------+ 127 * | 128 * | T3 129 * | 130 * v 131 * +-----------------------------+ 132 * | SMB_SERVER_STATE_DELETING | 133 * +-----------------------------+ 134 * | 135 * | 136 * | 137 * v 138 * 139 * States 140 * ------ 141 * 142 * SMB_SERVER_STATE_CREATED 143 * 144 * This is the state of the server just after creation. 145 * 146 * SMB_SERVER_STATE_CONFIGURED 147 * 148 * The server has been configured. 149 * 150 * SMB_SERVER_STATE_RUNNING 151 * 152 * The server has been started. While in this state the threads listening on 153 * the sockets are started. 154 * 155 * When a client establishes a connection the thread listening dispatches 156 * a task with the new session as an argument. If the dispatch fails the new 157 * session context is destroyed. 158 * 159 * SMB_SERVER_STATE_STOPPING 160 * 161 * The threads listening on the NBT and TCP sockets are being terminated. 162 * 163 * 164 * Transitions 165 * ----------- 166 * 167 * Transition T0 168 * 169 * The daemon smbd triggers its creation by opening the smbsrv device. If 170 * the zone where the daemon lives doesn't have an smb server yet it is 171 * created. 172 * 173 * smb_drv_open() --> smb_server_create() 174 * 175 * Transition T1 176 * 177 * This transition occurs in smb_server_configure(). It is triggered by the 178 * daemon through an Ioctl. 179 * 180 * smb_drv_ioctl(SMB_IOC_CONFIG) --> smb_server_configure() 181 * 182 * Transition T2 183 * 184 * This transition occurs in smb_server_start(). It is triggered by the 185 * daemon through an Ioctl. 186 * 187 * smb_drv_ioctl(SMB_IOC_START) --> smb_server_start() 188 * 189 * Transition T3 190 * 191 * This transition occurs in smb_server_delete(). It is triggered by the 192 * daemon when closing the smbsrv device 193 * 194 * smb_drv_close() --> smb_server_delete() 195 * 196 * Comments 197 * -------- 198 * 199 * This files assumes that there will one SMB server per zone. For now the 200 * smb server works only in global zone. There's nothing in this file preventing 201 * an smb server from being created in a non global zone. That limitation is 202 * enforced in user space. 203 */ 204 205 #include <sys/cmn_err.h> 206 #include <sys/priv.h> 207 #include <sys/zone.h> 208 #include <netinet/in.h> 209 #include <netinet/in_systm.h> 210 #include <netinet/ip.h> 211 #include <netinet/ip_icmp.h> 212 #include <netinet/ip_var.h> 213 #include <netinet/tcp.h> 214 #include <smbsrv/smb2_kproto.h> 215 #include <smbsrv/string.h> 216 #include <smbsrv/netbios.h> 217 #include <smbsrv/smb_fsops.h> 218 #include <smbsrv/smb_share.h> 219 #include <smbsrv/smb_door.h> 220 #include <smbsrv/smb_kstat.h> 221 222 extern void smb_reply_notify_change_request(smb_request_t *); 223 224 typedef struct { 225 smb_listener_daemon_t *ra_listener; 226 smb_session_t *ra_session; 227 } smb_receiver_arg_t; 228 229 static void smb_server_kstat_init(smb_server_t *); 230 static void smb_server_kstat_fini(smb_server_t *); 231 static void smb_server_timers(smb_thread_t *, void *); 232 static void smb_server_store_cfg(smb_server_t *, smb_ioc_cfg_t *); 233 static void smb_server_shutdown(smb_server_t *); 234 static int smb_server_fsop_start(smb_server_t *); 235 static void smb_server_fsop_stop(smb_server_t *); 236 static void smb_event_cancel(smb_server_t *, uint32_t); 237 static uint32_t smb_event_alloc_txid(void); 238 239 static void smb_server_disconnect_share(smb_llist_t *, const char *); 240 static void smb_server_enum_users(smb_llist_t *, smb_svcenum_t *); 241 static void smb_server_enum_trees(smb_llist_t *, smb_svcenum_t *); 242 static int smb_server_session_disconnect(smb_llist_t *, const char *, 243 const char *); 244 static int smb_server_fclose(smb_llist_t *, uint32_t); 245 static int smb_server_kstat_update(kstat_t *, int); 246 static int smb_server_legacy_kstat_update(kstat_t *, int); 247 static void smb_server_listener_init(smb_server_t *, smb_listener_daemon_t *, 248 char *, in_port_t, int); 249 static void smb_server_listener_destroy(smb_listener_daemon_t *); 250 static int smb_server_listener_start(smb_listener_daemon_t *); 251 static void smb_server_listener_stop(smb_listener_daemon_t *); 252 static void smb_server_listener(smb_thread_t *, void *); 253 static void smb_server_receiver(void *); 254 static void smb_server_create_session(smb_listener_daemon_t *, ksocket_t); 255 static void smb_server_destroy_session(smb_listener_daemon_t *, 256 smb_session_t *); 257 static uint16_t smb_spool_get_fid(smb_server_t *); 258 static boolean_t smb_spool_lookup_doc_byfid(smb_server_t *, uint16_t, 259 smb_kspooldoc_t *); 260 261 int smb_event_debug = 0; 262 263 static smb_llist_t smb_servers; 264 265 kmem_cache_t *smb_cache_request; 266 kmem_cache_t *smb_cache_session; 267 kmem_cache_t *smb_cache_user; 268 kmem_cache_t *smb_cache_tree; 269 kmem_cache_t *smb_cache_ofile; 270 kmem_cache_t *smb_cache_odir; 271 kmem_cache_t *smb_cache_opipe; 272 kmem_cache_t *smb_cache_event; 273 274 /* 275 * ***************************************************************************** 276 * **************** Functions called from the device interface ***************** 277 * ***************************************************************************** 278 * 279 * These functions typically have to determine the relevant smb server 280 * to which the call applies. 281 */ 282 283 /* 284 * How many zones have an SMB server active? 285 */ 286 int 287 smb_server_get_count(void) 288 { 289 return (smb_llist_get_count(&smb_servers)); 290 } 291 292 /* 293 * smb_server_g_init 294 * 295 * This function must be called from smb_drv_attach(). 296 */ 297 int 298 smb_server_g_init(void) 299 { 300 int rc; 301 302 if ((rc = smb_vop_init()) != 0) 303 goto errout; 304 if ((rc = smb_fem_init()) != 0) 305 goto errout; 306 307 smb_kshare_g_init(); 308 smb_codepage_init(); 309 smb_mbc_init(); /* smb_mbc_cache */ 310 smb_node_init(); /* smb_node_cache, lists */ 311 312 smb_cache_request = kmem_cache_create("smb_request_cache", 313 sizeof (smb_request_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 314 smb_cache_session = kmem_cache_create("smb_session_cache", 315 sizeof (smb_session_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 316 smb_cache_user = kmem_cache_create("smb_user_cache", 317 sizeof (smb_user_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 318 smb_cache_tree = kmem_cache_create("smb_tree_cache", 319 sizeof (smb_tree_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 320 smb_cache_ofile = kmem_cache_create("smb_ofile_cache", 321 sizeof (smb_ofile_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 322 smb_cache_odir = kmem_cache_create("smb_odir_cache", 323 sizeof (smb_odir_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 324 smb_cache_opipe = kmem_cache_create("smb_opipe_cache", 325 sizeof (smb_opipe_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 326 smb_cache_event = kmem_cache_create("smb_event_cache", 327 sizeof (smb_event_t), 8, NULL, NULL, NULL, NULL, NULL, 0); 328 329 smb_llist_init(); 330 smb_llist_constructor(&smb_servers, sizeof (smb_server_t), 331 offsetof(smb_server_t, sv_lnd)); 332 333 return (0); 334 335 errout: 336 smb_fem_fini(); 337 smb_vop_fini(); 338 return (rc); 339 } 340 341 /* 342 * smb_server_g_fini 343 * 344 * This function must called from smb_drv_detach(). It will fail if servers 345 * still exist. 346 */ 347 void 348 smb_server_g_fini(void) 349 { 350 351 ASSERT(smb_llist_get_count(&smb_servers) == 0); 352 353 smb_llist_fini(); 354 355 kmem_cache_destroy(smb_cache_request); 356 kmem_cache_destroy(smb_cache_session); 357 kmem_cache_destroy(smb_cache_user); 358 kmem_cache_destroy(smb_cache_tree); 359 kmem_cache_destroy(smb_cache_ofile); 360 kmem_cache_destroy(smb_cache_odir); 361 kmem_cache_destroy(smb_cache_opipe); 362 kmem_cache_destroy(smb_cache_event); 363 364 smb_node_fini(); 365 smb_mbc_fini(); 366 smb_codepage_fini(); 367 smb_kshare_g_fini(); 368 369 smb_fem_fini(); 370 smb_vop_fini(); 371 372 smb_llist_destructor(&smb_servers); 373 } 374 375 /* 376 * smb_server_create 377 * 378 * This function will fail if there's already a server associated with the 379 * caller's zone. 380 */ 381 int 382 smb_server_create(void) 383 { 384 zoneid_t zid; 385 smb_server_t *sv; 386 387 zid = getzoneid(); 388 389 smb_llist_enter(&smb_servers, RW_WRITER); 390 sv = smb_llist_head(&smb_servers); 391 while (sv) { 392 SMB_SERVER_VALID(sv); 393 if (sv->sv_zid == zid) { 394 smb_llist_exit(&smb_servers); 395 return (EPERM); 396 } 397 sv = smb_llist_next(&smb_servers, sv); 398 } 399 400 sv = kmem_zalloc(sizeof (smb_server_t), KM_SLEEP); 401 402 sv->sv_magic = SMB_SERVER_MAGIC; 403 sv->sv_state = SMB_SERVER_STATE_CREATED; 404 sv->sv_zid = zid; 405 sv->sv_pid = ddi_get_pid(); 406 407 mutex_init(&sv->sv_mutex, NULL, MUTEX_DEFAULT, NULL); 408 cv_init(&sv->sv_cv, NULL, CV_DEFAULT, NULL); 409 cv_init(&sv->sp_info.sp_cv, NULL, CV_DEFAULT, NULL); 410 411 smb_llist_constructor(&sv->sv_event_list, sizeof (smb_event_t), 412 offsetof(smb_event_t, se_lnd)); 413 414 smb_llist_constructor(&sv->sp_info.sp_list, sizeof (smb_kspooldoc_t), 415 offsetof(smb_kspooldoc_t, sd_lnd)); 416 417 smb_llist_constructor(&sv->sp_info.sp_fidlist, 418 sizeof (smb_spoolfid_t), offsetof(smb_spoolfid_t, sf_lnd)); 419 420 sv->sv_disp_stats1 = kmem_zalloc(SMB_COM_NUM * 421 sizeof (smb_disp_stats_t), KM_SLEEP); 422 423 sv->sv_disp_stats2 = kmem_zalloc(SMB2__NCMDS * 424 sizeof (smb_disp_stats_t), KM_SLEEP); 425 426 smb_thread_init(&sv->si_thread_timers, "smb_timers", 427 smb_server_timers, sv, smbsrv_timer_pri); 428 429 smb_srqueue_init(&sv->sv_srqueue); 430 431 smb_kdoor_init(sv); 432 smb_kshare_init(sv); 433 smb_server_kstat_init(sv); 434 435 smb_threshold_init(&sv->sv_ssetup_ct, SMB_SSETUP_CMD, 436 smb_ssetup_threshold, smb_ssetup_timeout); 437 smb_threshold_init(&sv->sv_tcon_ct, SMB_TCON_CMD, 438 smb_tcon_threshold, smb_tcon_timeout); 439 smb_threshold_init(&sv->sv_opipe_ct, SMB_OPIPE_CMD, 440 smb_opipe_threshold, smb_opipe_timeout); 441 442 smb_llist_insert_tail(&smb_servers, sv); 443 smb_llist_exit(&smb_servers); 444 445 return (0); 446 } 447 448 /* 449 * smb_server_delete 450 * 451 * This function will delete the server passed in. It will make sure that all 452 * activity associated that server has ceased before destroying it. 453 */ 454 int 455 smb_server_delete(void) 456 { 457 smb_server_t *sv; 458 int rc; 459 460 rc = smb_server_lookup(&sv); 461 if (rc != 0) 462 return (rc); 463 464 mutex_enter(&sv->sv_mutex); 465 switch (sv->sv_state) { 466 case SMB_SERVER_STATE_RUNNING: 467 sv->sv_state = SMB_SERVER_STATE_STOPPING; 468 mutex_exit(&sv->sv_mutex); 469 smb_server_shutdown(sv); 470 mutex_enter(&sv->sv_mutex); 471 cv_broadcast(&sv->sp_info.sp_cv); 472 sv->sv_state = SMB_SERVER_STATE_DELETING; 473 break; 474 case SMB_SERVER_STATE_STOPPING: 475 sv->sv_state = SMB_SERVER_STATE_DELETING; 476 break; 477 case SMB_SERVER_STATE_CONFIGURED: 478 case SMB_SERVER_STATE_CREATED: 479 sv->sv_state = SMB_SERVER_STATE_DELETING; 480 break; 481 default: 482 SMB_SERVER_STATE_VALID(sv->sv_state); 483 mutex_exit(&sv->sv_mutex); 484 smb_server_release(sv); 485 return (ENOTTY); 486 } 487 488 ASSERT(sv->sv_state == SMB_SERVER_STATE_DELETING); 489 490 sv->sv_refcnt--; 491 while (sv->sv_refcnt) 492 cv_wait(&sv->sv_cv, &sv->sv_mutex); 493 494 mutex_exit(&sv->sv_mutex); 495 496 smb_llist_enter(&smb_servers, RW_WRITER); 497 smb_llist_remove(&smb_servers, sv); 498 smb_llist_exit(&smb_servers); 499 500 smb_threshold_fini(&sv->sv_ssetup_ct); 501 smb_threshold_fini(&sv->sv_tcon_ct); 502 smb_threshold_fini(&sv->sv_opipe_ct); 503 504 smb_server_listener_destroy(&sv->sv_nbt_daemon); 505 smb_server_listener_destroy(&sv->sv_tcp_daemon); 506 rw_destroy(&sv->sv_cfg_lock); 507 smb_server_kstat_fini(sv); 508 smb_kshare_fini(sv); 509 smb_kdoor_fini(sv); 510 smb_llist_destructor(&sv->sv_event_list); 511 512 kmem_free(sv->sv_disp_stats1, 513 SMB_COM_NUM * sizeof (smb_disp_stats_t)); 514 515 kmem_free(sv->sv_disp_stats2, 516 SMB2__NCMDS * sizeof (smb_disp_stats_t)); 517 518 smb_srqueue_destroy(&sv->sv_srqueue); 519 smb_thread_destroy(&sv->si_thread_timers); 520 521 mutex_destroy(&sv->sv_mutex); 522 cv_destroy(&sv->sv_cv); 523 sv->sv_magic = 0; 524 kmem_free(sv, sizeof (smb_server_t)); 525 526 return (0); 527 } 528 529 /* 530 * smb_server_configure 531 */ 532 int 533 smb_server_configure(smb_ioc_cfg_t *ioc) 534 { 535 int rc = 0; 536 smb_server_t *sv; 537 538 /* 539 * Reality check negotiation token length vs. #define'd maximum. 540 */ 541 if (ioc->negtok_len > SMB_PI_MAX_NEGTOK) 542 return (EINVAL); 543 544 rc = smb_server_lookup(&sv); 545 if (rc) 546 return (rc); 547 548 mutex_enter(&sv->sv_mutex); 549 switch (sv->sv_state) { 550 case SMB_SERVER_STATE_CREATED: 551 smb_server_store_cfg(sv, ioc); 552 sv->sv_state = SMB_SERVER_STATE_CONFIGURED; 553 break; 554 555 case SMB_SERVER_STATE_CONFIGURED: 556 smb_server_store_cfg(sv, ioc); 557 break; 558 559 case SMB_SERVER_STATE_RUNNING: 560 case SMB_SERVER_STATE_STOPPING: 561 rw_enter(&sv->sv_cfg_lock, RW_WRITER); 562 smb_server_store_cfg(sv, ioc); 563 rw_exit(&sv->sv_cfg_lock); 564 break; 565 566 default: 567 SMB_SERVER_STATE_VALID(sv->sv_state); 568 rc = EFAULT; 569 break; 570 } 571 mutex_exit(&sv->sv_mutex); 572 573 smb_server_release(sv); 574 575 return (rc); 576 } 577 578 /* 579 * smb_server_start 580 */ 581 int 582 smb_server_start(smb_ioc_start_t *ioc) 583 { 584 int rc = 0; 585 int family; 586 smb_server_t *sv; 587 588 rc = smb_server_lookup(&sv); 589 if (rc) 590 return (rc); 591 592 mutex_enter(&sv->sv_mutex); 593 switch (sv->sv_state) { 594 case SMB_SERVER_STATE_CONFIGURED: 595 596 if ((rc = smb_server_fsop_start(sv)) != 0) 597 break; 598 599 if ((rc = smb_kshare_start(sv)) != 0) 600 break; 601 602 /* 603 * NB: the proc passed here has to be a "system" one. 604 * Normally that's p0, or the NGZ eqivalent. 605 */ 606 sv->sv_worker_pool = taskq_create_proc("smb_workers", 607 sv->sv_cfg.skc_maxworkers, smbsrv_worker_pri, 608 sv->sv_cfg.skc_maxworkers, INT_MAX, 609 curzone->zone_zsched, TASKQ_DYNAMIC); 610 611 sv->sv_receiver_pool = taskq_create_proc("smb_receivers", 612 sv->sv_cfg.skc_maxconnections, smbsrv_receive_pri, 613 sv->sv_cfg.skc_maxconnections, INT_MAX, 614 curzone->zone_zsched, TASKQ_DYNAMIC); 615 616 sv->sv_session = smb_session_create(NULL, 0, sv, 0); 617 618 if (sv->sv_worker_pool == NULL || sv->sv_session == NULL) { 619 rc = ENOMEM; 620 break; 621 } 622 623 #ifdef _KERNEL 624 ASSERT(sv->sv_lmshrd == NULL); 625 sv->sv_lmshrd = smb_kshare_door_init(ioc->lmshrd); 626 if (sv->sv_lmshrd == NULL) 627 break; 628 if (rc = smb_kdoor_open(sv, ioc->udoor)) { 629 cmn_err(CE_WARN, "Cannot open smbd door"); 630 break; 631 } 632 #else /* _KERNEL */ 633 /* Fake kernel does not use the kshare_door */ 634 fksmb_kdoor_open(sv, ioc->udoor_func); 635 #endif /* _KERNEL */ 636 637 if (rc = smb_thread_start(&sv->si_thread_timers)) 638 break; 639 640 family = AF_INET; 641 smb_server_listener_init(sv, &sv->sv_nbt_daemon, 642 "smb_nbt_listener", IPPORT_NETBIOS_SSN, family); 643 if (sv->sv_cfg.skc_ipv6_enable) 644 family = AF_INET6; 645 smb_server_listener_init(sv, &sv->sv_tcp_daemon, 646 "smb_tcp_listener", IPPORT_SMB, family); 647 rc = smb_server_listener_start(&sv->sv_tcp_daemon); 648 if (rc != 0) 649 break; 650 if (sv->sv_cfg.skc_netbios_enable) 651 (void) smb_server_listener_start(&sv->sv_nbt_daemon); 652 653 sv->sv_state = SMB_SERVER_STATE_RUNNING; 654 sv->sv_start_time = gethrtime(); 655 mutex_exit(&sv->sv_mutex); 656 smb_server_release(sv); 657 smb_export_start(sv); 658 return (0); 659 default: 660 SMB_SERVER_STATE_VALID(sv->sv_state); 661 mutex_exit(&sv->sv_mutex); 662 smb_server_release(sv); 663 return (ENOTTY); 664 } 665 666 mutex_exit(&sv->sv_mutex); 667 smb_server_shutdown(sv); 668 smb_server_release(sv); 669 return (rc); 670 } 671 672 /* 673 * An smbd is shutting down. 674 */ 675 int 676 smb_server_stop(void) 677 { 678 smb_server_t *sv; 679 int rc; 680 681 if ((rc = smb_server_lookup(&sv)) != 0) 682 return (rc); 683 684 mutex_enter(&sv->sv_mutex); 685 switch (sv->sv_state) { 686 case SMB_SERVER_STATE_RUNNING: 687 sv->sv_state = SMB_SERVER_STATE_STOPPING; 688 mutex_exit(&sv->sv_mutex); 689 smb_server_shutdown(sv); 690 mutex_enter(&sv->sv_mutex); 691 cv_broadcast(&sv->sp_info.sp_cv); 692 break; 693 default: 694 SMB_SERVER_STATE_VALID(sv->sv_state); 695 break; 696 } 697 mutex_exit(&sv->sv_mutex); 698 699 smb_server_release(sv); 700 return (0); 701 } 702 703 boolean_t 704 smb_server_is_stopping(smb_server_t *sv) 705 { 706 boolean_t status; 707 708 SMB_SERVER_VALID(sv); 709 710 mutex_enter(&sv->sv_mutex); 711 712 switch (sv->sv_state) { 713 case SMB_SERVER_STATE_STOPPING: 714 case SMB_SERVER_STATE_DELETING: 715 status = B_TRUE; 716 break; 717 default: 718 status = B_FALSE; 719 break; 720 } 721 722 mutex_exit(&sv->sv_mutex); 723 return (status); 724 } 725 726 void 727 smb_server_cancel_event(smb_server_t *sv, uint32_t txid) 728 { 729 smb_event_cancel(sv, txid); 730 } 731 732 int 733 smb_server_notify_event(smb_ioc_event_t *ioc) 734 { 735 smb_server_t *sv; 736 int rc; 737 738 if ((rc = smb_server_lookup(&sv)) == 0) { 739 smb_event_notify(sv, ioc->txid); 740 smb_server_release(sv); 741 } 742 743 return (rc); 744 } 745 746 /* 747 * smb_server_spooldoc 748 * 749 * Waits for print file close broadcast. 750 * Gets the head of the fid list, 751 * then searches the spooldoc list and returns 752 * this info via the ioctl to user land. 753 * 754 * rc - 0 success 755 */ 756 757 int 758 smb_server_spooldoc(smb_ioc_spooldoc_t *ioc) 759 { 760 smb_server_t *sv; 761 int rc; 762 smb_kspooldoc_t *spdoc; 763 uint16_t fid; 764 765 if ((rc = smb_server_lookup(&sv)) != 0) 766 return (rc); 767 768 if (sv->sv_cfg.skc_print_enable == 0) { 769 rc = ENOTTY; 770 goto out; 771 } 772 773 mutex_enter(&sv->sv_mutex); 774 for (;;) { 775 if (sv->sv_state != SMB_SERVER_STATE_RUNNING) { 776 rc = ECANCELED; 777 break; 778 } 779 if ((fid = smb_spool_get_fid(sv)) != 0) { 780 rc = 0; 781 break; 782 } 783 if (cv_wait_sig(&sv->sp_info.sp_cv, &sv->sv_mutex) == 0) { 784 rc = EINTR; 785 break; 786 } 787 } 788 mutex_exit(&sv->sv_mutex); 789 if (rc != 0) 790 goto out; 791 792 spdoc = kmem_zalloc(sizeof (*spdoc), KM_SLEEP); 793 if (smb_spool_lookup_doc_byfid(sv, fid, spdoc)) { 794 ioc->spool_num = spdoc->sd_spool_num; 795 ioc->ipaddr = spdoc->sd_ipaddr; 796 (void) strlcpy(ioc->path, spdoc->sd_path, 797 MAXPATHLEN); 798 (void) strlcpy(ioc->username, 799 spdoc->sd_username, MAXNAMELEN); 800 } else { 801 /* Did not find that print job. */ 802 rc = EAGAIN; 803 } 804 kmem_free(spdoc, sizeof (*spdoc)); 805 806 out: 807 smb_server_release(sv); 808 return (rc); 809 } 810 811 int 812 smb_server_set_gmtoff(smb_ioc_gmt_t *ioc) 813 { 814 int rc; 815 smb_server_t *sv; 816 817 if ((rc = smb_server_lookup(&sv)) == 0) { 818 sv->si_gmtoff = ioc->offset; 819 smb_server_release(sv); 820 } 821 822 return (rc); 823 } 824 825 int 826 smb_server_numopen(smb_ioc_opennum_t *ioc) 827 { 828 smb_server_t *sv; 829 int rc; 830 831 if ((rc = smb_server_lookup(&sv)) == 0) { 832 ioc->open_users = sv->sv_users; 833 ioc->open_trees = sv->sv_trees; 834 ioc->open_files = sv->sv_files + sv->sv_pipes; 835 smb_server_release(sv); 836 } 837 return (rc); 838 } 839 840 /* 841 * Enumerate objects within the server. The svcenum provides the 842 * enumeration context, i.e. what the caller want to get back. 843 */ 844 int 845 smb_server_enum(smb_ioc_svcenum_t *ioc) 846 { 847 smb_svcenum_t *svcenum = &ioc->svcenum; 848 smb_server_t *sv; 849 int rc; 850 851 /* 852 * Reality check that the buffer-length insize the enum doesn't 853 * overrun the ioctl's total length. 854 */ 855 if (svcenum->se_buflen + sizeof (*ioc) > ioc->hdr.len) 856 return (EINVAL); 857 858 if ((rc = smb_server_lookup(&sv)) != 0) 859 return (rc); 860 861 svcenum->se_bavail = svcenum->se_buflen; 862 svcenum->se_bused = 0; 863 svcenum->se_nitems = 0; 864 865 switch (svcenum->se_type) { 866 case SMB_SVCENUM_TYPE_USER: 867 smb_server_enum_users(&sv->sv_nbt_daemon.ld_session_list, 868 svcenum); 869 smb_server_enum_users(&sv->sv_tcp_daemon.ld_session_list, 870 svcenum); 871 break; 872 case SMB_SVCENUM_TYPE_TREE: 873 case SMB_SVCENUM_TYPE_FILE: 874 smb_server_enum_trees(&sv->sv_nbt_daemon.ld_session_list, 875 svcenum); 876 smb_server_enum_trees(&sv->sv_tcp_daemon.ld_session_list, 877 svcenum); 878 break; 879 default: 880 rc = EINVAL; 881 } 882 883 smb_server_release(sv); 884 return (rc); 885 } 886 887 /* 888 * Look for sessions to disconnect by client and user name. 889 */ 890 int 891 smb_server_session_close(smb_ioc_session_t *ioc) 892 { 893 smb_llist_t *ll; 894 smb_server_t *sv; 895 int nbt_cnt; 896 int tcp_cnt; 897 int rc; 898 899 if ((rc = smb_server_lookup(&sv)) != 0) 900 return (rc); 901 902 ll = &sv->sv_nbt_daemon.ld_session_list; 903 nbt_cnt = smb_server_session_disconnect(ll, ioc->client, ioc->username); 904 905 ll = &sv->sv_tcp_daemon.ld_session_list; 906 tcp_cnt = smb_server_session_disconnect(ll, ioc->client, ioc->username); 907 908 smb_server_release(sv); 909 910 if ((nbt_cnt == 0) && (tcp_cnt == 0)) 911 return (ENOENT); 912 return (0); 913 } 914 915 /* 916 * Close a file by uniqid. 917 */ 918 int 919 smb_server_file_close(smb_ioc_fileid_t *ioc) 920 { 921 uint32_t uniqid = ioc->uniqid; 922 smb_llist_t *ll; 923 smb_server_t *sv; 924 int rc; 925 926 if ((rc = smb_server_lookup(&sv)) != 0) 927 return (rc); 928 929 ll = &sv->sv_nbt_daemon.ld_session_list; 930 rc = smb_server_fclose(ll, uniqid); 931 932 if (rc == ENOENT) { 933 ll = &sv->sv_tcp_daemon.ld_session_list; 934 rc = smb_server_fclose(ll, uniqid); 935 } 936 937 smb_server_release(sv); 938 return (rc); 939 } 940 941 /* 942 * These functions determine the relevant smb server to which the call apply. 943 */ 944 945 uint32_t 946 smb_server_get_session_count(smb_server_t *sv) 947 { 948 uint32_t counter = 0; 949 950 counter = smb_llist_get_count(&sv->sv_nbt_daemon.ld_session_list); 951 counter += smb_llist_get_count(&sv->sv_tcp_daemon.ld_session_list); 952 953 return (counter); 954 } 955 956 /* 957 * Gets the vnode of the specified share path. 958 * 959 * A hold on the returned vnode pointer is taken so the caller 960 * must call VN_RELE. 961 */ 962 int 963 smb_server_sharevp(smb_server_t *sv, const char *shr_path, vnode_t **vp) 964 { 965 smb_request_t *sr; 966 smb_node_t *fnode = NULL; 967 smb_node_t *dnode; 968 char last_comp[MAXNAMELEN]; 969 int rc = 0; 970 971 ASSERT(shr_path); 972 973 mutex_enter(&sv->sv_mutex); 974 switch (sv->sv_state) { 975 case SMB_SERVER_STATE_RUNNING: 976 break; 977 default: 978 mutex_exit(&sv->sv_mutex); 979 return (ENOTACTIVE); 980 } 981 mutex_exit(&sv->sv_mutex); 982 983 if ((sr = smb_request_alloc(sv->sv_session, 0)) == NULL) { 984 return (ENOMEM); 985 } 986 sr->user_cr = zone_kcred(); 987 988 rc = smb_pathname_reduce(sr, sr->user_cr, shr_path, 989 NULL, NULL, &dnode, last_comp); 990 991 if (rc == 0) { 992 rc = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS, 993 sv->si_root_smb_node, dnode, last_comp, &fnode); 994 smb_node_release(dnode); 995 } 996 997 smb_request_free(sr); 998 999 if (rc != 0) 1000 return (rc); 1001 1002 ASSERT(fnode->vp && fnode->vp->v_vfsp); 1003 1004 VN_HOLD(fnode->vp); 1005 *vp = fnode->vp; 1006 1007 smb_node_release(fnode); 1008 1009 return (0); 1010 } 1011 1012 #ifdef _KERNEL 1013 /* 1014 * This is a special interface that will be utilized by ZFS to cause a share to 1015 * be added/removed. 1016 * 1017 * arg is either a lmshare_info_t or share_name from userspace. 1018 * It will need to be copied into the kernel. It is lmshare_info_t 1019 * for add operations and share_name for delete operations. 1020 */ 1021 int 1022 smb_server_share(void *arg, boolean_t add_share) 1023 { 1024 smb_server_t *sv; 1025 int rc; 1026 1027 if ((rc = smb_server_lookup(&sv)) == 0) { 1028 mutex_enter(&sv->sv_mutex); 1029 switch (sv->sv_state) { 1030 case SMB_SERVER_STATE_RUNNING: 1031 mutex_exit(&sv->sv_mutex); 1032 (void) smb_kshare_upcall(sv->sv_lmshrd, arg, add_share); 1033 break; 1034 default: 1035 mutex_exit(&sv->sv_mutex); 1036 break; 1037 } 1038 smb_server_release(sv); 1039 } 1040 1041 return (rc); 1042 } 1043 #endif /* _KERNEL */ 1044 1045 int 1046 smb_server_unshare(const char *sharename) 1047 { 1048 smb_server_t *sv; 1049 smb_llist_t *ll; 1050 int rc; 1051 1052 if ((rc = smb_server_lookup(&sv))) 1053 return (rc); 1054 1055 mutex_enter(&sv->sv_mutex); 1056 switch (sv->sv_state) { 1057 case SMB_SERVER_STATE_RUNNING: 1058 case SMB_SERVER_STATE_STOPPING: 1059 break; 1060 default: 1061 mutex_exit(&sv->sv_mutex); 1062 smb_server_release(sv); 1063 return (ENOTACTIVE); 1064 } 1065 mutex_exit(&sv->sv_mutex); 1066 1067 ll = &sv->sv_nbt_daemon.ld_session_list; 1068 smb_server_disconnect_share(ll, sharename); 1069 1070 ll = &sv->sv_tcp_daemon.ld_session_list; 1071 smb_server_disconnect_share(ll, sharename); 1072 1073 smb_server_release(sv); 1074 return (0); 1075 } 1076 1077 /* 1078 * Disconnect the specified share. 1079 * Typically called when a share has been removed. 1080 */ 1081 static void 1082 smb_server_disconnect_share(smb_llist_t *ll, const char *sharename) 1083 { 1084 smb_session_t *session; 1085 1086 smb_llist_enter(ll, RW_READER); 1087 1088 session = smb_llist_head(ll); 1089 while (session) { 1090 SMB_SESSION_VALID(session); 1091 smb_rwx_rwenter(&session->s_lock, RW_READER); 1092 switch (session->s_state) { 1093 case SMB_SESSION_STATE_NEGOTIATED: 1094 smb_session_disconnect_share(session, sharename); 1095 break; 1096 default: 1097 break; 1098 } 1099 smb_rwx_rwexit(&session->s_lock); 1100 session = smb_llist_next(ll, session); 1101 } 1102 1103 smb_llist_exit(ll); 1104 } 1105 1106 /* 1107 * ***************************************************************************** 1108 * **************** Functions called from the internal layers ****************** 1109 * ***************************************************************************** 1110 * 1111 * These functions are provided the relevant smb server by the caller. 1112 */ 1113 1114 void 1115 smb_server_get_cfg(smb_server_t *sv, smb_kmod_cfg_t *cfg) 1116 { 1117 rw_enter(&sv->sv_cfg_lock, RW_READER); 1118 bcopy(&sv->sv_cfg, cfg, sizeof (*cfg)); 1119 rw_exit(&sv->sv_cfg_lock); 1120 } 1121 1122 /* 1123 * 1124 */ 1125 void 1126 smb_server_inc_nbt_sess(smb_server_t *sv) 1127 { 1128 SMB_SERVER_VALID(sv); 1129 atomic_inc_32(&sv->sv_nbt_sess); 1130 } 1131 1132 void 1133 smb_server_dec_nbt_sess(smb_server_t *sv) 1134 { 1135 SMB_SERVER_VALID(sv); 1136 atomic_dec_32(&sv->sv_nbt_sess); 1137 } 1138 1139 void 1140 smb_server_inc_tcp_sess(smb_server_t *sv) 1141 { 1142 SMB_SERVER_VALID(sv); 1143 atomic_inc_32(&sv->sv_tcp_sess); 1144 } 1145 1146 void 1147 smb_server_dec_tcp_sess(smb_server_t *sv) 1148 { 1149 SMB_SERVER_VALID(sv); 1150 atomic_dec_32(&sv->sv_tcp_sess); 1151 } 1152 1153 void 1154 smb_server_inc_users(smb_server_t *sv) 1155 { 1156 SMB_SERVER_VALID(sv); 1157 atomic_inc_32(&sv->sv_users); 1158 } 1159 1160 void 1161 smb_server_dec_users(smb_server_t *sv) 1162 { 1163 SMB_SERVER_VALID(sv); 1164 atomic_dec_32(&sv->sv_users); 1165 } 1166 1167 void 1168 smb_server_inc_trees(smb_server_t *sv) 1169 { 1170 SMB_SERVER_VALID(sv); 1171 atomic_inc_32(&sv->sv_trees); 1172 } 1173 1174 void 1175 smb_server_dec_trees(smb_server_t *sv) 1176 { 1177 SMB_SERVER_VALID(sv); 1178 atomic_dec_32(&sv->sv_trees); 1179 } 1180 1181 void 1182 smb_server_inc_files(smb_server_t *sv) 1183 { 1184 SMB_SERVER_VALID(sv); 1185 atomic_inc_32(&sv->sv_files); 1186 } 1187 1188 void 1189 smb_server_dec_files(smb_server_t *sv) 1190 { 1191 SMB_SERVER_VALID(sv); 1192 atomic_dec_32(&sv->sv_files); 1193 } 1194 1195 void 1196 smb_server_inc_pipes(smb_server_t *sv) 1197 { 1198 SMB_SERVER_VALID(sv); 1199 atomic_inc_32(&sv->sv_pipes); 1200 } 1201 1202 void 1203 smb_server_dec_pipes(smb_server_t *sv) 1204 { 1205 SMB_SERVER_VALID(sv); 1206 atomic_dec_32(&sv->sv_pipes); 1207 } 1208 1209 void 1210 smb_server_add_rxb(smb_server_t *sv, int64_t value) 1211 { 1212 SMB_SERVER_VALID(sv); 1213 atomic_add_64(&sv->sv_rxb, value); 1214 } 1215 1216 void 1217 smb_server_add_txb(smb_server_t *sv, int64_t value) 1218 { 1219 SMB_SERVER_VALID(sv); 1220 atomic_add_64(&sv->sv_txb, value); 1221 } 1222 1223 void 1224 smb_server_inc_req(smb_server_t *sv) 1225 { 1226 SMB_SERVER_VALID(sv); 1227 atomic_inc_64(&sv->sv_nreq); 1228 } 1229 1230 /* 1231 * ***************************************************************************** 1232 * *************************** Static Functions ******************************** 1233 * ***************************************************************************** 1234 */ 1235 1236 static void 1237 smb_server_timers(smb_thread_t *thread, void *arg) 1238 { 1239 smb_server_t *sv = (smb_server_t *)arg; 1240 1241 ASSERT(sv != NULL); 1242 1243 /* 1244 * This just kills old inactive sessions. No urgency. 1245 * The session code expects one call per minute. 1246 */ 1247 while (smb_thread_continue_timedwait(thread, 60 /* Seconds */)) { 1248 smb_session_timers(&sv->sv_nbt_daemon.ld_session_list); 1249 smb_session_timers(&sv->sv_tcp_daemon.ld_session_list); 1250 } 1251 } 1252 1253 /* 1254 * smb_server_kstat_init 1255 */ 1256 static void 1257 smb_server_kstat_init(smb_server_t *sv) 1258 { 1259 1260 sv->sv_ksp = kstat_create_zone(SMBSRV_KSTAT_MODULE, 0, 1261 SMBSRV_KSTAT_STATISTICS, SMBSRV_KSTAT_CLASS, KSTAT_TYPE_RAW, 1262 sizeof (smbsrv_kstats_t), 0, sv->sv_zid); 1263 1264 if (sv->sv_ksp != NULL) { 1265 sv->sv_ksp->ks_update = smb_server_kstat_update; 1266 sv->sv_ksp->ks_private = sv; 1267 ((smbsrv_kstats_t *)sv->sv_ksp->ks_data)->ks_start_time = 1268 sv->sv_start_time; 1269 smb_dispatch_stats_init(sv); 1270 smb2_dispatch_stats_init(sv); 1271 kstat_install(sv->sv_ksp); 1272 } else { 1273 cmn_err(CE_WARN, "SMB Server: Statistics unavailable"); 1274 } 1275 1276 sv->sv_legacy_ksp = kstat_create_zone(SMBSRV_KSTAT_MODULE, 0, 1277 SMBSRV_KSTAT_NAME, SMBSRV_KSTAT_CLASS, KSTAT_TYPE_NAMED, 1278 sizeof (smb_server_legacy_kstat_t) / sizeof (kstat_named_t), 1279 0, sv->sv_zid); 1280 1281 if (sv->sv_legacy_ksp != NULL) { 1282 smb_server_legacy_kstat_t *ksd; 1283 1284 ksd = sv->sv_legacy_ksp->ks_data; 1285 1286 (void) strlcpy(ksd->ls_files.name, "open_files", 1287 sizeof (ksd->ls_files.name)); 1288 ksd->ls_files.data_type = KSTAT_DATA_UINT32; 1289 1290 (void) strlcpy(ksd->ls_trees.name, "connections", 1291 sizeof (ksd->ls_trees.name)); 1292 ksd->ls_trees.data_type = KSTAT_DATA_UINT32; 1293 1294 (void) strlcpy(ksd->ls_users.name, "connections", 1295 sizeof (ksd->ls_users.name)); 1296 ksd->ls_users.data_type = KSTAT_DATA_UINT32; 1297 1298 mutex_init(&sv->sv_legacy_ksmtx, NULL, MUTEX_DEFAULT, NULL); 1299 sv->sv_legacy_ksp->ks_lock = &sv->sv_legacy_ksmtx; 1300 sv->sv_legacy_ksp->ks_update = smb_server_legacy_kstat_update; 1301 kstat_install(sv->sv_legacy_ksp); 1302 } 1303 } 1304 1305 /* 1306 * smb_server_kstat_fini 1307 */ 1308 static void 1309 smb_server_kstat_fini(smb_server_t *sv) 1310 { 1311 if (sv->sv_legacy_ksp != NULL) { 1312 kstat_delete(sv->sv_legacy_ksp); 1313 mutex_destroy(&sv->sv_legacy_ksmtx); 1314 sv->sv_legacy_ksp = NULL; 1315 } 1316 1317 if (sv->sv_ksp != NULL) { 1318 kstat_delete(sv->sv_ksp); 1319 sv->sv_ksp = NULL; 1320 smb_dispatch_stats_fini(sv); 1321 smb2_dispatch_stats_fini(sv); 1322 } 1323 } 1324 1325 /* 1326 * smb_server_kstat_update 1327 */ 1328 static int 1329 smb_server_kstat_update(kstat_t *ksp, int rw) 1330 { 1331 smb_server_t *sv; 1332 smbsrv_kstats_t *ksd; 1333 1334 if (rw == KSTAT_READ) { 1335 sv = ksp->ks_private; 1336 SMB_SERVER_VALID(sv); 1337 ksd = (smbsrv_kstats_t *)ksp->ks_data; 1338 /* 1339 * Counters 1340 */ 1341 ksd->ks_nbt_sess = sv->sv_nbt_sess; 1342 ksd->ks_tcp_sess = sv->sv_tcp_sess; 1343 ksd->ks_users = sv->sv_users; 1344 ksd->ks_trees = sv->sv_trees; 1345 ksd->ks_files = sv->sv_files; 1346 ksd->ks_pipes = sv->sv_pipes; 1347 /* 1348 * Throughput 1349 */ 1350 ksd->ks_txb = sv->sv_txb; 1351 ksd->ks_rxb = sv->sv_rxb; 1352 ksd->ks_nreq = sv->sv_nreq; 1353 /* 1354 * Busyness 1355 */ 1356 ksd->ks_maxreqs = sv->sv_cfg.skc_maxworkers; 1357 smb_srqueue_update(&sv->sv_srqueue, 1358 &ksd->ks_utilization); 1359 /* 1360 * Latency & Throughput of the requests 1361 */ 1362 smb_dispatch_stats_update(sv, ksd->ks_reqs1, 0, SMB_COM_NUM); 1363 smb2_dispatch_stats_update(sv, ksd->ks_reqs2, 0, SMB2__NCMDS); 1364 return (0); 1365 } 1366 if (rw == KSTAT_WRITE) 1367 return (EACCES); 1368 1369 return (EIO); 1370 } 1371 1372 static int 1373 smb_server_legacy_kstat_update(kstat_t *ksp, int rw) 1374 { 1375 smb_server_t *sv; 1376 smb_server_legacy_kstat_t *ksd; 1377 int rc; 1378 1379 switch (rw) { 1380 case KSTAT_WRITE: 1381 rc = EACCES; 1382 break; 1383 case KSTAT_READ: 1384 if (!smb_server_lookup(&sv)) { 1385 ASSERT(MUTEX_HELD(ksp->ks_lock)); 1386 ASSERT(sv->sv_legacy_ksp == ksp); 1387 ksd = (smb_server_legacy_kstat_t *)ksp->ks_data; 1388 ksd->ls_files.value.ui32 = sv->sv_files + sv->sv_pipes; 1389 ksd->ls_trees.value.ui32 = sv->sv_trees; 1390 ksd->ls_users.value.ui32 = sv->sv_users; 1391 smb_server_release(sv); 1392 rc = 0; 1393 break; 1394 } 1395 /* FALLTHROUGH */ 1396 default: 1397 rc = EIO; 1398 break; 1399 } 1400 return (rc); 1401 1402 } 1403 1404 /* 1405 * smb_server_shutdown 1406 */ 1407 static void 1408 smb_server_shutdown(smb_server_t *sv) 1409 { 1410 SMB_SERVER_VALID(sv); 1411 1412 /* 1413 * Stop the listeners first, so we don't get any more 1414 * new work while we're trying to shut down. 1415 */ 1416 smb_server_listener_stop(&sv->sv_nbt_daemon); 1417 smb_server_listener_stop(&sv->sv_tcp_daemon); 1418 smb_thread_stop(&sv->si_thread_timers); 1419 1420 /* 1421 * Wake up any threads we might have blocked. 1422 * Must precede kdoor_close etc. because those will 1423 * wait for such threads to get out. 1424 */ 1425 smb_event_cancel(sv, 0); 1426 smb_threshold_wake_all(&sv->sv_ssetup_ct); 1427 smb_threshold_wake_all(&sv->sv_tcon_ct); 1428 smb_threshold_wake_all(&sv->sv_opipe_ct); 1429 1430 smb_kdoor_close(sv); 1431 #ifdef _KERNEL 1432 smb_kshare_door_fini(sv->sv_lmshrd); 1433 #endif /* _KERNEL */ 1434 sv->sv_lmshrd = NULL; 1435 1436 smb_export_stop(sv); 1437 1438 if (sv->sv_session != NULL) { 1439 /* 1440 * smb_kshare_export may have a request on here. 1441 * Normal sessions do this in smb_session_cancel() 1442 * but this is a "fake" session used only for the 1443 * requests used by the kshare thread(s). 1444 */ 1445 smb_slist_wait_for_empty(&sv->sv_session->s_req_list); 1446 1447 smb_session_delete(sv->sv_session); 1448 sv->sv_session = NULL; 1449 } 1450 1451 if (sv->sv_receiver_pool != NULL) { 1452 taskq_destroy(sv->sv_receiver_pool); 1453 sv->sv_receiver_pool = NULL; 1454 } 1455 1456 if (sv->sv_worker_pool != NULL) { 1457 taskq_destroy(sv->sv_worker_pool); 1458 sv->sv_worker_pool = NULL; 1459 } 1460 1461 smb_kshare_stop(sv); 1462 smb_server_fsop_stop(sv); 1463 } 1464 1465 /* 1466 * smb_server_listener_init 1467 * 1468 * Initializes listener contexts. 1469 */ 1470 static void 1471 smb_server_listener_init( 1472 smb_server_t *sv, 1473 smb_listener_daemon_t *ld, 1474 char *name, 1475 in_port_t port, 1476 int family) 1477 { 1478 ASSERT(ld->ld_magic != SMB_LISTENER_MAGIC); 1479 1480 bzero(ld, sizeof (*ld)); 1481 1482 ld->ld_sv = sv; 1483 ld->ld_family = family; 1484 ld->ld_port = port; 1485 1486 if (family == AF_INET) { 1487 ld->ld_sin.sin_family = (uint32_t)family; 1488 ld->ld_sin.sin_port = htons(port); 1489 ld->ld_sin.sin_addr.s_addr = htonl(INADDR_ANY); 1490 } else { 1491 ld->ld_sin6.sin6_family = (uint32_t)family; 1492 ld->ld_sin6.sin6_port = htons(port); 1493 (void) memset(&ld->ld_sin6.sin6_addr.s6_addr, 0, 1494 sizeof (ld->ld_sin6.sin6_addr.s6_addr)); 1495 } 1496 1497 smb_llist_constructor(&ld->ld_session_list, sizeof (smb_session_t), 1498 offsetof(smb_session_t, s_lnd)); 1499 smb_thread_init(&ld->ld_thread, name, smb_server_listener, ld, 1500 smbsrv_listen_pri); 1501 ld->ld_magic = SMB_LISTENER_MAGIC; 1502 } 1503 1504 /* 1505 * smb_server_listener_destroy 1506 * 1507 * Destroyes listener contexts. 1508 */ 1509 static void 1510 smb_server_listener_destroy(smb_listener_daemon_t *ld) 1511 { 1512 /* 1513 * Note that if startup fails early, we can legitimately 1514 * get here with an all-zeros object. 1515 */ 1516 if (ld->ld_magic == 0) 1517 return; 1518 1519 SMB_LISTENER_VALID(ld); 1520 ASSERT(ld->ld_so == NULL); 1521 smb_thread_destroy(&ld->ld_thread); 1522 smb_llist_destructor(&ld->ld_session_list); 1523 ld->ld_magic = 0; 1524 } 1525 1526 /* 1527 * smb_server_listener_start 1528 * 1529 * Starts the listener associated with the context passed in. 1530 * 1531 * Return: 0 Success 1532 * not 0 Failure 1533 */ 1534 static int 1535 smb_server_listener_start(smb_listener_daemon_t *ld) 1536 { 1537 int rc; 1538 uint32_t on; 1539 uint32_t off; 1540 1541 SMB_LISTENER_VALID(ld); 1542 1543 if (ld->ld_so != NULL) 1544 return (EINVAL); 1545 1546 ld->ld_so = smb_socreate(ld->ld_family, SOCK_STREAM, 0); 1547 if (ld->ld_so == NULL) { 1548 cmn_err(CE_WARN, "port %d: socket create failed", ld->ld_port); 1549 return (ENOMEM); 1550 } 1551 1552 off = 0; 1553 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1554 SO_MAC_EXEMPT, &off, sizeof (off), CRED()); 1555 1556 on = 1; 1557 (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET, 1558 SO_REUSEADDR, &on, sizeof (on), CRED()); 1559 1560 if (ld->ld_family == AF_INET) { 1561 rc = ksocket_bind(ld->ld_so, 1562 (struct sockaddr *)&ld->ld_sin, 1563 sizeof (ld->ld_sin), CRED()); 1564 } else { 1565 rc = ksocket_bind(ld->ld_so, 1566 (struct sockaddr *)&ld->ld_sin6, 1567 sizeof (ld->ld_sin6), CRED()); 1568 } 1569 1570 if (rc != 0) { 1571 cmn_err(CE_WARN, "port %d: bind failed", ld->ld_port); 1572 return (rc); 1573 } 1574 1575 rc = ksocket_listen(ld->ld_so, 20, CRED()); 1576 if (rc < 0) { 1577 cmn_err(CE_WARN, "port %d: listen failed", ld->ld_port); 1578 return (rc); 1579 } 1580 1581 ksocket_hold(ld->ld_so); 1582 rc = smb_thread_start(&ld->ld_thread); 1583 if (rc != 0) { 1584 ksocket_rele(ld->ld_so); 1585 cmn_err(CE_WARN, "port %d: listener failed to start", 1586 ld->ld_port); 1587 return (rc); 1588 } 1589 return (0); 1590 } 1591 1592 /* 1593 * smb_server_listener_stop 1594 * 1595 * Stops the listener associated with the context passed in. 1596 */ 1597 static void 1598 smb_server_listener_stop(smb_listener_daemon_t *ld) 1599 { 1600 SMB_LISTENER_VALID(ld); 1601 1602 if (ld->ld_so != NULL) { 1603 smb_soshutdown(ld->ld_so); 1604 smb_sodestroy(ld->ld_so); 1605 smb_thread_stop(&ld->ld_thread); 1606 ld->ld_so = NULL; 1607 } 1608 } 1609 1610 /* 1611 * smb_server_listener 1612 * 1613 * Entry point of the listeners. 1614 */ 1615 static void 1616 smb_server_listener(smb_thread_t *thread, void *arg) 1617 { 1618 _NOTE(ARGUNUSED(thread)) 1619 smb_listener_daemon_t *ld; 1620 smb_session_t *session; 1621 ksocket_t s_so; 1622 int on; 1623 int txbuf_size; 1624 1625 ld = (smb_listener_daemon_t *)arg; 1626 1627 SMB_LISTENER_VALID(ld); 1628 1629 DTRACE_PROBE1(so__wait__accept, struct sonode *, ld->ld_so); 1630 1631 while (ksocket_accept(ld->ld_so, NULL, NULL, &s_so, CRED()) 1632 == 0) { 1633 DTRACE_PROBE1(so__accept, struct sonode *, s_so); 1634 1635 on = 1; 1636 (void) ksocket_setsockopt(s_so, IPPROTO_TCP, TCP_NODELAY, 1637 &on, sizeof (on), CRED()); 1638 1639 on = 1; 1640 (void) ksocket_setsockopt(s_so, SOL_SOCKET, SO_KEEPALIVE, 1641 &on, sizeof (on), CRED()); 1642 1643 txbuf_size = 128*1024; 1644 (void) ksocket_setsockopt(s_so, SOL_SOCKET, SO_SNDBUF, 1645 (const void *)&txbuf_size, sizeof (txbuf_size), CRED()); 1646 1647 /* 1648 * Create a session for this connection. 1649 */ 1650 smb_server_create_session(ld, s_so); 1651 } 1652 /* Disconnect all the sessions this listener created. */ 1653 smb_llist_enter(&ld->ld_session_list, RW_READER); 1654 session = smb_llist_head(&ld->ld_session_list); 1655 while (session != NULL) { 1656 smb_session_disconnect(session); 1657 session = smb_llist_next(&ld->ld_session_list, session); 1658 } 1659 smb_llist_exit(&ld->ld_session_list); 1660 ksocket_rele(ld->ld_so); 1661 } 1662 1663 /* 1664 * smb_server_receiver 1665 * 1666 * Entry point of the receiver threads. 1667 */ 1668 static void 1669 smb_server_receiver(void *arg) 1670 { 1671 smb_listener_daemon_t *ld; 1672 smb_session_t *session; 1673 1674 ld = ((smb_receiver_arg_t *)arg)->ra_listener; 1675 session = ((smb_receiver_arg_t *)arg)->ra_session; 1676 smb_mem_free(arg); 1677 smb_session_receiver(session); 1678 smb_server_destroy_session(ld, session); 1679 } 1680 1681 /* 1682 * smb_server_lookup 1683 * 1684 * This function finds the server associated with the zone of the 1685 * caller. Note: requires a fix in the dynamic taskq code: 1686 * 1501 taskq_create_proc ... TQ_DYNAMIC puts tasks in p0 1687 */ 1688 int 1689 smb_server_lookup(smb_server_t **psv) 1690 { 1691 zoneid_t zid; 1692 smb_server_t *sv; 1693 1694 zid = getzoneid(); 1695 1696 smb_llist_enter(&smb_servers, RW_READER); 1697 sv = smb_llist_head(&smb_servers); 1698 while (sv) { 1699 SMB_SERVER_VALID(sv); 1700 if (sv->sv_zid == zid) { 1701 mutex_enter(&sv->sv_mutex); 1702 if (sv->sv_state != SMB_SERVER_STATE_DELETING) { 1703 sv->sv_refcnt++; 1704 mutex_exit(&sv->sv_mutex); 1705 smb_llist_exit(&smb_servers); 1706 *psv = sv; 1707 return (0); 1708 } 1709 mutex_exit(&sv->sv_mutex); 1710 break; 1711 } 1712 sv = smb_llist_next(&smb_servers, sv); 1713 } 1714 smb_llist_exit(&smb_servers); 1715 return (EPERM); 1716 } 1717 1718 /* 1719 * smb_server_release 1720 * 1721 * This function decrements the reference count of the server and signals its 1722 * condition variable if the state of the server is SMB_SERVER_STATE_DELETING. 1723 */ 1724 void 1725 smb_server_release(smb_server_t *sv) 1726 { 1727 SMB_SERVER_VALID(sv); 1728 1729 mutex_enter(&sv->sv_mutex); 1730 ASSERT(sv->sv_refcnt); 1731 sv->sv_refcnt--; 1732 if ((sv->sv_refcnt == 0) && (sv->sv_state == SMB_SERVER_STATE_DELETING)) 1733 cv_signal(&sv->sv_cv); 1734 mutex_exit(&sv->sv_mutex); 1735 } 1736 1737 /* 1738 * Enumerate the users associated with a session list. 1739 */ 1740 static void 1741 smb_server_enum_users(smb_llist_t *ll, smb_svcenum_t *svcenum) 1742 { 1743 smb_session_t *sn; 1744 smb_llist_t *ulist; 1745 smb_user_t *user; 1746 int rc = 0; 1747 1748 smb_llist_enter(ll, RW_READER); 1749 sn = smb_llist_head(ll); 1750 1751 while (sn != NULL) { 1752 SMB_SESSION_VALID(sn); 1753 ulist = &sn->s_user_list; 1754 smb_llist_enter(ulist, RW_READER); 1755 user = smb_llist_head(ulist); 1756 1757 while (user != NULL) { 1758 if (smb_user_hold(user)) { 1759 rc = smb_user_enum(user, svcenum); 1760 smb_user_release(user); 1761 if (rc != 0) 1762 break; 1763 } 1764 1765 user = smb_llist_next(ulist, user); 1766 } 1767 1768 smb_llist_exit(ulist); 1769 1770 if (rc != 0) 1771 break; 1772 1773 sn = smb_llist_next(ll, sn); 1774 } 1775 1776 smb_llist_exit(ll); 1777 } 1778 1779 /* 1780 * Enumerate the trees/files associated with a session list. 1781 */ 1782 static void 1783 smb_server_enum_trees(smb_llist_t *ll, smb_svcenum_t *svcenum) 1784 { 1785 smb_session_t *sn; 1786 smb_llist_t *tlist; 1787 smb_tree_t *tree; 1788 int rc = 0; 1789 1790 smb_llist_enter(ll, RW_READER); 1791 sn = smb_llist_head(ll); 1792 1793 while (sn != NULL) { 1794 SMB_SESSION_VALID(sn); 1795 tlist = &sn->s_tree_list; 1796 smb_llist_enter(tlist, RW_READER); 1797 tree = smb_llist_head(tlist); 1798 1799 while (tree != NULL) { 1800 if (smb_tree_hold(tree)) { 1801 rc = smb_tree_enum(tree, svcenum); 1802 smb_tree_release(tree); 1803 if (rc != 0) 1804 break; 1805 } 1806 1807 tree = smb_llist_next(tlist, tree); 1808 } 1809 1810 smb_llist_exit(tlist); 1811 1812 if (rc != 0) 1813 break; 1814 1815 sn = smb_llist_next(ll, sn); 1816 } 1817 1818 smb_llist_exit(ll); 1819 } 1820 1821 /* 1822 * Disconnect sessions associated with the specified client and username. 1823 * Empty strings are treated as wildcards. 1824 */ 1825 static int 1826 smb_server_session_disconnect(smb_llist_t *ll, 1827 const char *client, const char *name) 1828 { 1829 smb_session_t *sn; 1830 smb_llist_t *ulist; 1831 smb_user_t *user; 1832 boolean_t match; 1833 int count = 0; 1834 1835 smb_llist_enter(ll, RW_READER); 1836 sn = smb_llist_head(ll); 1837 1838 while (sn != NULL) { 1839 SMB_SESSION_VALID(sn); 1840 1841 if ((*client != '\0') && (!smb_session_isclient(sn, client))) { 1842 sn = smb_llist_next(ll, sn); 1843 continue; 1844 } 1845 1846 ulist = &sn->s_user_list; 1847 smb_llist_enter(ulist, RW_READER); 1848 user = smb_llist_head(ulist); 1849 1850 while (user != NULL) { 1851 if (smb_user_hold(user)) { 1852 match = (*name == '\0'); 1853 if (!match) 1854 match = smb_user_namecmp(user, name); 1855 1856 if (match) { 1857 smb_llist_exit(ulist); 1858 smb_user_logoff(user); 1859 ++count; 1860 smb_user_release(user); 1861 smb_llist_enter(ulist, RW_READER); 1862 user = smb_llist_head(ulist); 1863 continue; 1864 } 1865 1866 smb_user_release(user); 1867 } 1868 1869 user = smb_llist_next(ulist, user); 1870 } 1871 1872 smb_llist_exit(ulist); 1873 sn = smb_llist_next(ll, sn); 1874 } 1875 1876 smb_llist_exit(ll); 1877 return (count); 1878 } 1879 1880 /* 1881 * Close a file by its unique id. 1882 */ 1883 static int 1884 smb_server_fclose(smb_llist_t *ll, uint32_t uniqid) 1885 { 1886 smb_session_t *sn; 1887 smb_llist_t *tlist; 1888 smb_tree_t *tree; 1889 int rc = ENOENT; 1890 1891 smb_llist_enter(ll, RW_READER); 1892 sn = smb_llist_head(ll); 1893 1894 while ((sn != NULL) && (rc == ENOENT)) { 1895 SMB_SESSION_VALID(sn); 1896 tlist = &sn->s_tree_list; 1897 smb_llist_enter(tlist, RW_READER); 1898 tree = smb_llist_head(tlist); 1899 1900 while ((tree != NULL) && (rc == ENOENT)) { 1901 if (smb_tree_hold(tree)) { 1902 rc = smb_tree_fclose(tree, uniqid); 1903 smb_tree_release(tree); 1904 } 1905 1906 tree = smb_llist_next(tlist, tree); 1907 } 1908 1909 smb_llist_exit(tlist); 1910 sn = smb_llist_next(ll, sn); 1911 } 1912 1913 smb_llist_exit(ll); 1914 return (rc); 1915 } 1916 1917 /* See also: libsmb smb_kmod_setcfg */ 1918 static void 1919 smb_server_store_cfg(smb_server_t *sv, smb_ioc_cfg_t *ioc) 1920 { 1921 if (ioc->maxconnections == 0) 1922 ioc->maxconnections = 0xFFFFFFFF; 1923 1924 smb_session_correct_keep_alive_values( 1925 &sv->sv_nbt_daemon.ld_session_list, ioc->keepalive); 1926 smb_session_correct_keep_alive_values( 1927 &sv->sv_tcp_daemon.ld_session_list, ioc->keepalive); 1928 1929 sv->sv_cfg.skc_maxworkers = ioc->maxworkers; 1930 sv->sv_cfg.skc_maxconnections = ioc->maxconnections; 1931 sv->sv_cfg.skc_keepalive = ioc->keepalive; 1932 sv->sv_cfg.skc_restrict_anon = ioc->restrict_anon; 1933 sv->sv_cfg.skc_signing_enable = ioc->signing_enable; 1934 sv->sv_cfg.skc_signing_required = ioc->signing_required; 1935 sv->sv_cfg.skc_oplock_enable = ioc->oplock_enable; 1936 sv->sv_cfg.skc_sync_enable = ioc->sync_enable; 1937 sv->sv_cfg.skc_secmode = ioc->secmode; 1938 sv->sv_cfg.skc_netbios_enable = ioc->netbios_enable; 1939 sv->sv_cfg.skc_ipv6_enable = ioc->ipv6_enable; 1940 sv->sv_cfg.skc_print_enable = ioc->print_enable; 1941 sv->sv_cfg.skc_traverse_mounts = ioc->traverse_mounts; 1942 sv->sv_cfg.skc_max_protocol = ioc->max_protocol; 1943 sv->sv_cfg.skc_execflags = ioc->exec_flags; 1944 sv->sv_cfg.skc_negtok_len = ioc->negtok_len; 1945 sv->sv_cfg.skc_version = ioc->version; 1946 sv->sv_cfg.skc_initial_credits = ioc->initial_credits; 1947 sv->sv_cfg.skc_maximum_credits = ioc->maximum_credits; 1948 1949 (void) memcpy(sv->sv_cfg.skc_machine_uuid, ioc->machine_uuid, 1950 sizeof (uuid_t)); 1951 (void) memcpy(sv->sv_cfg.skc_negtok, ioc->negtok, 1952 sizeof (sv->sv_cfg.skc_negtok)); 1953 (void) memcpy(sv->sv_cfg.skc_native_os, ioc->native_os, 1954 sizeof (sv->sv_cfg.skc_native_os)); 1955 (void) memcpy(sv->sv_cfg.skc_native_lm, ioc->native_lm, 1956 sizeof (sv->sv_cfg.skc_native_lm)); 1957 1958 (void) strlcpy(sv->sv_cfg.skc_nbdomain, ioc->nbdomain, 1959 sizeof (sv->sv_cfg.skc_nbdomain)); 1960 (void) strlcpy(sv->sv_cfg.skc_fqdn, ioc->fqdn, 1961 sizeof (sv->sv_cfg.skc_fqdn)); 1962 (void) strlcpy(sv->sv_cfg.skc_hostname, ioc->hostname, 1963 sizeof (sv->sv_cfg.skc_hostname)); 1964 (void) strlcpy(sv->sv_cfg.skc_system_comment, ioc->system_comment, 1965 sizeof (sv->sv_cfg.skc_system_comment)); 1966 } 1967 1968 static int 1969 smb_server_fsop_start(smb_server_t *sv) 1970 { 1971 int error; 1972 1973 error = smb_node_root_init(sv, &sv->si_root_smb_node); 1974 if (error != 0) 1975 sv->si_root_smb_node = NULL; 1976 1977 return (error); 1978 } 1979 1980 static void 1981 smb_server_fsop_stop(smb_server_t *sv) 1982 { 1983 if (sv->si_root_smb_node != NULL) { 1984 smb_node_release(sv->si_root_smb_node); 1985 sv->si_root_smb_node = NULL; 1986 } 1987 } 1988 1989 smb_event_t * 1990 smb_event_create(smb_server_t *sv, int timeout) 1991 { 1992 smb_event_t *event; 1993 1994 if (smb_server_is_stopping(sv)) 1995 return (NULL); 1996 1997 event = kmem_cache_alloc(smb_cache_event, KM_SLEEP); 1998 1999 bzero(event, sizeof (smb_event_t)); 2000 mutex_init(&event->se_mutex, NULL, MUTEX_DEFAULT, NULL); 2001 cv_init(&event->se_cv, NULL, CV_DEFAULT, NULL); 2002 event->se_magic = SMB_EVENT_MAGIC; 2003 event->se_txid = smb_event_alloc_txid(); 2004 event->se_server = sv; 2005 event->se_timeout = timeout; 2006 2007 smb_llist_enter(&sv->sv_event_list, RW_WRITER); 2008 smb_llist_insert_tail(&sv->sv_event_list, event); 2009 smb_llist_exit(&sv->sv_event_list); 2010 2011 return (event); 2012 } 2013 2014 void 2015 smb_event_destroy(smb_event_t *event) 2016 { 2017 smb_server_t *sv; 2018 2019 if (event == NULL) 2020 return; 2021 2022 SMB_EVENT_VALID(event); 2023 ASSERT(event->se_waittime == 0); 2024 sv = event->se_server; 2025 SMB_SERVER_VALID(sv); 2026 2027 smb_llist_enter(&sv->sv_event_list, RW_WRITER); 2028 smb_llist_remove(&sv->sv_event_list, event); 2029 smb_llist_exit(&sv->sv_event_list); 2030 2031 event->se_magic = (uint32_t)~SMB_EVENT_MAGIC; 2032 cv_destroy(&event->se_cv); 2033 mutex_destroy(&event->se_mutex); 2034 2035 kmem_cache_free(smb_cache_event, event); 2036 } 2037 2038 /* 2039 * Get the txid for the specified event. 2040 */ 2041 uint32_t 2042 smb_event_txid(smb_event_t *event) 2043 { 2044 if (event != NULL) { 2045 SMB_EVENT_VALID(event); 2046 return (event->se_txid); 2047 } 2048 2049 cmn_err(CE_NOTE, "smb_event_txid failed"); 2050 return ((uint32_t)-1); 2051 } 2052 2053 /* 2054 * Wait for event notification. 2055 */ 2056 int 2057 smb_event_wait(smb_event_t *event) 2058 { 2059 int seconds = 1; 2060 int ticks; 2061 int err; 2062 2063 if (event == NULL) 2064 return (EINVAL); 2065 2066 SMB_EVENT_VALID(event); 2067 2068 mutex_enter(&event->se_mutex); 2069 event->se_waittime = 1; 2070 event->se_errno = 0; 2071 2072 while (!(event->se_notified)) { 2073 if (smb_event_debug && ((event->se_waittime % 30) == 0)) 2074 cmn_err(CE_NOTE, "smb_event_wait[%d] (%d sec)", 2075 event->se_txid, event->se_waittime); 2076 2077 if (event->se_errno != 0) 2078 break; 2079 2080 if (event->se_waittime > event->se_timeout) { 2081 event->se_errno = ETIME; 2082 break; 2083 } 2084 2085 ticks = SEC_TO_TICK(seconds); 2086 (void) cv_reltimedwait(&event->se_cv, 2087 &event->se_mutex, (clock_t)ticks, TR_CLOCK_TICK); 2088 ++event->se_waittime; 2089 } 2090 2091 err = event->se_errno; 2092 event->se_waittime = 0; 2093 event->se_notified = B_FALSE; 2094 cv_signal(&event->se_cv); 2095 mutex_exit(&event->se_mutex); 2096 return (err); 2097 } 2098 2099 /* 2100 * If txid is non-zero, cancel the specified event. 2101 * Otherwise, cancel all events. 2102 */ 2103 static void 2104 smb_event_cancel(smb_server_t *sv, uint32_t txid) 2105 { 2106 smb_event_t *event; 2107 smb_llist_t *event_list; 2108 2109 SMB_SERVER_VALID(sv); 2110 2111 event_list = &sv->sv_event_list; 2112 smb_llist_enter(event_list, RW_WRITER); 2113 2114 event = smb_llist_head(event_list); 2115 while (event) { 2116 SMB_EVENT_VALID(event); 2117 2118 if (txid == 0 || event->se_txid == txid) { 2119 mutex_enter(&event->se_mutex); 2120 event->se_errno = ECANCELED; 2121 event->se_notified = B_TRUE; 2122 cv_signal(&event->se_cv); 2123 mutex_exit(&event->se_mutex); 2124 2125 if (txid != 0) 2126 break; 2127 } 2128 2129 event = smb_llist_next(event_list, event); 2130 } 2131 2132 smb_llist_exit(event_list); 2133 } 2134 2135 /* 2136 * If txid is non-zero, notify the specified event. 2137 * Otherwise, notify all events. 2138 */ 2139 void 2140 smb_event_notify(smb_server_t *sv, uint32_t txid) 2141 { 2142 smb_event_t *event; 2143 smb_llist_t *event_list; 2144 2145 SMB_SERVER_VALID(sv); 2146 2147 event_list = &sv->sv_event_list; 2148 smb_llist_enter(event_list, RW_READER); 2149 2150 event = smb_llist_head(event_list); 2151 while (event) { 2152 SMB_EVENT_VALID(event); 2153 2154 if (txid == 0 || event->se_txid == txid) { 2155 mutex_enter(&event->se_mutex); 2156 event->se_notified = B_TRUE; 2157 cv_signal(&event->se_cv); 2158 mutex_exit(&event->se_mutex); 2159 2160 if (txid != 0) 2161 break; 2162 } 2163 2164 event = smb_llist_next(event_list, event); 2165 } 2166 2167 smb_llist_exit(event_list); 2168 } 2169 2170 /* 2171 * Allocate a new transaction id (txid). 2172 * 2173 * 0 or -1 are not assigned because they are used to detect invalid 2174 * conditions or to indicate all open id's. 2175 */ 2176 static uint32_t 2177 smb_event_alloc_txid(void) 2178 { 2179 static kmutex_t txmutex; 2180 static uint32_t txid; 2181 uint32_t txid_ret; 2182 2183 mutex_enter(&txmutex); 2184 2185 if (txid == 0) 2186 txid = ddi_get_lbolt() << 11; 2187 2188 do { 2189 ++txid; 2190 } while (txid == 0 || txid == (uint32_t)-1); 2191 2192 txid_ret = txid; 2193 mutex_exit(&txmutex); 2194 2195 return (txid_ret); 2196 } 2197 2198 /* 2199 * Called by the ioctl to find the corresponding 2200 * spooldoc node. removes node on success 2201 * 2202 * Return values 2203 * rc 2204 * B_FALSE - not found 2205 * B_TRUE - found 2206 * 2207 */ 2208 2209 static boolean_t 2210 smb_spool_lookup_doc_byfid(smb_server_t *sv, uint16_t fid, 2211 smb_kspooldoc_t *spdoc) 2212 { 2213 smb_kspooldoc_t *sp; 2214 smb_llist_t *splist; 2215 2216 splist = &sv->sp_info.sp_list; 2217 smb_llist_enter(splist, RW_WRITER); 2218 sp = smb_llist_head(splist); 2219 while (sp != NULL) { 2220 /* 2221 * check for a matching fid 2222 */ 2223 if (sp->sd_fid == fid) { 2224 *spdoc = *sp; 2225 smb_llist_remove(splist, sp); 2226 smb_llist_exit(splist); 2227 kmem_free(sp, sizeof (smb_kspooldoc_t)); 2228 return (B_TRUE); 2229 } 2230 sp = smb_llist_next(splist, sp); 2231 } 2232 cmn_err(CE_WARN, "smb_spool_lookup_user_byfid: no fid:%d", fid); 2233 smb_llist_exit(splist); 2234 return (B_FALSE); 2235 } 2236 2237 /* 2238 * Adds the spool fid to a linked list to be used 2239 * as a search key in the spooldoc queue 2240 * 2241 * Return values 2242 * rc non-zero error 2243 * rc zero success 2244 * 2245 */ 2246 2247 void 2248 smb_spool_add_fid(smb_server_t *sv, uint16_t fid) 2249 { 2250 smb_llist_t *fidlist; 2251 smb_spoolfid_t *sf; 2252 2253 if (sv->sv_cfg.skc_print_enable == 0) 2254 return; 2255 2256 sf = kmem_zalloc(sizeof (smb_spoolfid_t), KM_SLEEP); 2257 fidlist = &sv->sp_info.sp_fidlist; 2258 smb_llist_enter(fidlist, RW_WRITER); 2259 sf->sf_fid = fid; 2260 smb_llist_insert_tail(fidlist, sf); 2261 smb_llist_exit(fidlist); 2262 cv_broadcast(&sv->sp_info.sp_cv); 2263 } 2264 2265 /* 2266 * Called by the ioctl to get and remove the head of the fid list 2267 * 2268 * Return values 2269 * int fd 2270 * greater than 0 success 2271 * 0 - error 2272 * 2273 */ 2274 2275 static uint16_t 2276 smb_spool_get_fid(smb_server_t *sv) 2277 { 2278 smb_spoolfid_t *spfid; 2279 smb_llist_t *splist; 2280 uint16_t fid; 2281 2282 splist = &sv->sp_info.sp_fidlist; 2283 smb_llist_enter(splist, RW_WRITER); 2284 spfid = smb_llist_head(splist); 2285 if (spfid != NULL) { 2286 fid = spfid->sf_fid; 2287 smb_llist_remove(&sv->sp_info.sp_fidlist, spfid); 2288 kmem_free(spfid, sizeof (smb_spoolfid_t)); 2289 } else { 2290 fid = 0; 2291 } 2292 smb_llist_exit(splist); 2293 return (fid); 2294 } 2295 2296 /* 2297 * Adds the spooldoc to the tail of the spooldoc list 2298 * 2299 * Return values 2300 * rc non-zero error 2301 * rc zero success 2302 */ 2303 int 2304 smb_spool_add_doc(smb_tree_t *tree, smb_kspooldoc_t *sp) 2305 { 2306 smb_llist_t *splist; 2307 smb_server_t *sv = tree->t_server; 2308 int rc = 0; 2309 2310 splist = &sv->sp_info.sp_list; 2311 smb_llist_enter(splist, RW_WRITER); 2312 sp->sd_spool_num = atomic_inc_32_nv(&sv->sp_info.sp_cnt); 2313 smb_llist_insert_tail(splist, sp); 2314 smb_llist_exit(splist); 2315 2316 return (rc); 2317 } 2318 2319 /* 2320 * smb_server_create_session 2321 */ 2322 static void 2323 smb_server_create_session(smb_listener_daemon_t *ld, ksocket_t s_so) 2324 { 2325 smb_session_t *session; 2326 smb_receiver_arg_t *rarg; 2327 taskqid_t tqid; 2328 2329 session = smb_session_create(s_so, ld->ld_port, ld->ld_sv, 2330 ld->ld_family); 2331 2332 if (session == NULL) { 2333 smb_soshutdown(s_so); 2334 smb_sodestroy(s_so); 2335 cmn_err(CE_WARN, "SMB Session: alloc failed"); 2336 return; 2337 } 2338 2339 smb_llist_enter(&ld->ld_session_list, RW_WRITER); 2340 smb_llist_insert_tail(&ld->ld_session_list, session); 2341 smb_llist_exit(&ld->ld_session_list); 2342 2343 rarg = (smb_receiver_arg_t *)smb_mem_alloc( 2344 sizeof (smb_receiver_arg_t)); 2345 rarg->ra_listener = ld; 2346 rarg->ra_session = session; 2347 2348 /* 2349 * These taskq entries must run independently of one another, 2350 * so TQ_NOQUEUE. TQ_SLEEP (==0) just for clarity. 2351 */ 2352 tqid = taskq_dispatch(ld->ld_sv->sv_receiver_pool, 2353 smb_server_receiver, rarg, TQ_NOQUEUE | TQ_SLEEP); 2354 if (tqid == TASKQID_INVALID) { 2355 smb_mem_free(rarg); 2356 smb_session_disconnect(session); 2357 smb_server_destroy_session(ld, session); 2358 cmn_err(CE_WARN, "SMB Session: taskq_dispatch failed"); 2359 return; 2360 } 2361 /* handy for debugging */ 2362 session->s_receiver_tqid = tqid; 2363 } 2364 2365 static void 2366 smb_server_destroy_session(smb_listener_daemon_t *ld, smb_session_t *session) 2367 { 2368 smb_llist_enter(&ld->ld_session_list, RW_WRITER); 2369 smb_llist_remove(&ld->ld_session_list, session); 2370 smb_llist_exit(&ld->ld_session_list); 2371 smb_session_delete(session); 2372 } 2373