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 2000 by Cisco Systems, Inc. All rights reserved. 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 * iSCSI Software Initiator 27 */ 28 29 /* 30 * Framework interface routines for iSCSI 31 */ 32 33 #include "iscsi.h" /* main header */ 34 #include <sys/iscsi_protocol.h> /* protocol structs */ 35 #include <sys/scsi/adapters/iscsi_if.h> /* ioctl interfaces */ 36 #include "iscsi_targetparam.h" 37 #include "persistent.h" 38 #include <sys/scsi/adapters/iscsi_door.h> 39 #include <sys/dlpi.h> 40 #include <sys/utsname.h> 41 #include "isns_client.h" 42 #include "isns_protocol.h" 43 #include <sys/bootprops.h> 44 #include <sys/types.h> 45 #include <sys/bootconf.h> 46 47 #define ISCSI_NAME_VERSION "iSCSI Initiator v-1.55" 48 49 #define MAX_GET_NAME_SIZE 1024 50 #define MAX_NAME_PROP_SIZE 256 51 #define UNDEFINED -1 52 53 /* 54 * +--------------------------------------------------------------------+ 55 * | iscsi globals | 56 * +--------------------------------------------------------------------+ 57 */ 58 void *iscsi_state; 59 kmutex_t iscsi_oid_mutex; 60 uint32_t iscsi_oid; 61 int iscsi_nop_delay = ISCSI_DEFAULT_NOP_DELAY; 62 int iscsi_rx_window = ISCSI_DEFAULT_RX_WINDOW; 63 int iscsi_rx_max_window = ISCSI_DEFAULT_RX_MAX_WINDOW; 64 boolean_t iscsi_logging = B_FALSE; 65 66 extern ib_boot_prop_t *iscsiboot_prop; 67 extern int modrootloaded; 68 extern struct bootobj rootfs; 69 70 /* 71 * +--------------------------------------------------------------------+ 72 * | iscsi.c prototypes | 73 * +--------------------------------------------------------------------+ 74 */ 75 static int iscsi_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, 76 void *arg, void **result); 77 static int iscsi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd); 78 static int iscsi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd); 79 80 /* scsi_tran prototypes */ 81 static int iscsi_tran_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 82 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 83 static int iscsi_tran_lun_probe(struct scsi_device *sd, int (*callback) ()); 84 static struct scsi_pkt *iscsi_tran_init_pkt(struct scsi_address *ap, 85 struct scsi_pkt *pkt, struct buf *bp, int cmdlen, int statuslen, 86 int tgtlen, int flags, int (*callback) (), caddr_t arg); 87 static void iscsi_tran_lun_free(dev_info_t *hba_dip, dev_info_t *lun_dip, 88 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 89 static int iscsi_tran_start(struct scsi_address *ap, struct scsi_pkt *pkt); 90 static int iscsi_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt); 91 static int iscsi_tran_reset(struct scsi_address *ap, int level); 92 static int iscsi_tran_getcap(struct scsi_address *ap, char *cap, int whom); 93 static int iscsi_tran_setcap(struct scsi_address *ap, char *cap, 94 int value, int whom); 95 static void iscsi_tran_destroy_pkt(struct scsi_address *ap, 96 struct scsi_pkt *pkt); 97 static void iscsi_tran_dmafree(struct scsi_address *ap, 98 struct scsi_pkt *pkt); 99 static void iscsi_tran_sync_pkt(struct scsi_address *ap, 100 struct scsi_pkt *pkt); 101 static void iscsi_tran_sync_pkt(struct scsi_address *ap, 102 struct scsi_pkt *pkt); 103 static int iscsi_tran_reset_notify(struct scsi_address *ap, int flag, 104 void (*callback) (caddr_t), caddr_t arg); 105 static int iscsi_tran_bus_config(dev_info_t *parent, uint_t flags, 106 ddi_bus_config_op_t op, void *arg, dev_info_t **childp); 107 static int iscsi_tran_bus_unconfig(dev_info_t *parent, uint_t flags, 108 ddi_bus_config_op_t op, void *arg); 109 static int iscsi_tran_get_name(struct scsi_device *sd, char *name, int len); 110 static int iscsi_tran_get_bus_addr(struct scsi_device *sd, char *name, int len); 111 112 /* bus_ops prototypes */ 113 /* LINTED E_STATIC_UNUSED */ 114 static ddi_intrspec_t iscsi_get_intrspec(dev_info_t *dip, dev_info_t *rdip, 115 uint_t inumber); 116 /* LINTED E_STATIC_UNUSED */ 117 static int iscsi_add_intrspec(dev_info_t *dip, dev_info_t *rdip, 118 ddi_intrspec_t intrspec, ddi_iblock_cookie_t *iblock_cookiep, 119 ddi_idevice_cookie_t *idevice_cookiep, uint_t (*int_handler)(caddr_t 120 int_handler_arg), caddr_t int_handler_arg, int kind); 121 /* LINTED E_STATIC_UNUSED */ 122 static void iscsi_remove_intrspec(dev_info_t *dip, dev_info_t *rdip, 123 ddi_intrspec_t intrspec, ddi_iblock_cookie_t iblock_cookie); 124 /* LINTED E_STATIC_UNUSED */ 125 static int iscsi_ctl(dev_info_t *dip, dev_info_t *rdip, ddi_ctl_enum_t ctlop, 126 void *arg, void *result); 127 128 /* cb_ops prototypes */ 129 static int iscsi_open(dev_t *devp, int flags, int otyp, cred_t *credp); 130 static int iscsi_close(dev_t dev, int flag, int otyp, cred_t *credp); 131 static int iscsi_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 132 cred_t *credp, int *rvalp); 133 134 int iscsi_get_persisted_param(uchar_t *name, 135 iscsi_param_get_t *ipgp, 136 iscsi_login_params_t *params); 137 static void iscsi_override_target_default(iscsi_hba_t *ihp, 138 iscsi_param_get_t *ipg); 139 140 /* scsi_tran helpers */ 141 static int iscsi_virt_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 142 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 143 static int iscsi_phys_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 144 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 145 static int iscsi_i_commoncap(struct scsi_address *ap, char *cap, 146 int val, int lunonly, int doset); 147 static void iscsi_get_name_to_iqn(char *name, int name_max_len); 148 static void iscsi_get_name_from_iqn(char *name, int name_max_len); 149 static boolean_t iscsi_cmp_boot_sess_oid(iscsi_hba_t *ihp, uint32_t oid); 150 151 /* iscsi initiator service helpers */ 152 static boolean_t iscsi_enter_service_zone(iscsi_hba_t *ihp, uint32_t status); 153 static void iscsi_exit_service_zone(iscsi_hba_t *ihp, uint32_t status); 154 static void iscsi_check_miniroot(iscsi_hba_t *ihp); 155 156 /* struct helpers prototypes */ 157 158 /* 159 * At this point this driver doesn't need this structure because nothing 160 * is done during the open, close or ioctl. Code put in place because 161 * some admin related work might be done in the ioctl routine. 162 */ 163 static struct cb_ops iscsi_cb_ops = { 164 iscsi_open, /* open */ 165 iscsi_close, /* close */ 166 nodev, /* strategy */ 167 nodev, /* print */ 168 nodev, /* dump */ 169 nodev, /* read */ 170 nodev, /* write */ 171 iscsi_ioctl, /* ioctl */ 172 nodev, /* devmap */ 173 nodev, /* mmap */ 174 nodev, /* segmap */ 175 nochpoll, /* poll */ 176 ddi_prop_op, /* prop_op */ 177 NULL, /* streamtab */ 178 D_NEW | D_MP | D_HOTPLUG, /* flags */ 179 CB_REV, /* cb_rev */ 180 nodev, /* aread */ 181 nodev, /* awrite */ 182 }; 183 184 static struct dev_ops iscsi_dev_ops = { 185 DEVO_REV, /* devo_rev */ 186 0, /* refcnt */ 187 iscsi_getinfo, /* getinfo */ 188 nulldev, /* identify */ 189 nulldev, /* probe */ 190 iscsi_attach, /* attach */ 191 iscsi_detach, /* detach */ 192 nodev, /* reset */ 193 &iscsi_cb_ops, /* driver operations */ 194 NULL, /* bus ops */ 195 NULL, /* power management */ 196 ddi_quiesce_not_needed, /* quiesce */ 197 }; 198 199 static struct modldrv modldrv = { 200 &mod_driverops, /* drv_modops */ 201 ISCSI_NAME_VERSION, /* drv_linkinfo */ 202 &iscsi_dev_ops /* drv_dev_ops */ 203 }; 204 205 static struct modlinkage modlinkage = { 206 MODREV_1, /* ml_rev */ 207 &modldrv, /* ml_linkage[] */ 208 NULL /* NULL termination */ 209 }; 210 211 /* 212 * This structure is bogus. scsi_hba_attach_setup() requires, as in the kernel 213 * will panic if you don't pass this in to the routine, this information. 214 * Need to determine what the actual impact to the system is by providing 215 * this information if any. Since dma allocation is done in pkt_init it may 216 * not have any impact. These values are straight from the Writing Device 217 * Driver manual. 218 */ 219 static ddi_dma_attr_t iscsi_dma_attr = { 220 DMA_ATTR_V0, /* ddi_dma_attr version */ 221 0, /* low address */ 222 0xffffffff, /* high address */ 223 0x00ffffff, /* counter upper bound */ 224 1, /* alignment requirements */ 225 0x3f, /* burst sizes */ 226 1, /* minimum DMA access */ 227 0xffffffff, /* maximum DMA access */ 228 (1 << 24) - 1, /* segment boundary restrictions */ 229 1, /* scater/gather list length */ 230 512, /* device granularity */ 231 0 /* DMA flags */ 232 }; 233 234 /* 235 * _init - General driver init entry 236 */ 237 int 238 _init(void) 239 { 240 int rval = 0; 241 242 iscsi_net_init(); 243 244 mutex_init(&iscsi_oid_mutex, NULL, MUTEX_DRIVER, NULL); 245 iscsi_oid = ISCSI_INITIATOR_OID; 246 247 /* 248 * Set up the soft state structures. If this driver is actually 249 * being attached to the system then we'll have at least one 250 * HBA/NIC used. 251 */ 252 rval = ddi_soft_state_init(&iscsi_state, 253 sizeof (iscsi_hba_t), 1); 254 if (rval != 0) { 255 iscsi_net_fini(); 256 goto init_done; 257 } 258 259 rval = scsi_hba_init(&modlinkage); 260 if (rval != 0) { 261 ddi_soft_state_fini(&iscsi_state); 262 iscsi_net_fini(); 263 goto init_done; 264 } 265 266 rval = mod_install(&modlinkage); 267 if (rval != 0) { 268 ddi_soft_state_fini(&iscsi_state); 269 scsi_hba_fini(&modlinkage); 270 iscsi_net_fini(); 271 goto init_done; 272 } 273 (void) iscsi_door_ini(); 274 275 init_done: 276 return (rval); 277 } 278 279 /* 280 * _fini - General driver destructor entry 281 */ 282 int 283 _fini(void) 284 { 285 int rval = 0; 286 287 rval = mod_remove(&modlinkage); 288 if (rval == 0) { 289 scsi_hba_fini(&modlinkage); 290 ddi_soft_state_fini(&iscsi_state); 291 mutex_destroy(&iscsi_oid_mutex); 292 (void) iscsi_door_term(); 293 iscsi_net_fini(); 294 } 295 return (rval); 296 } 297 298 /* 299 * _info - General driver info entry 300 */ 301 int 302 _info(struct modinfo *mp) 303 { 304 int rval = 0; 305 306 rval = mod_info(&modlinkage, mp); 307 308 return (rval); 309 } 310 311 312 /* 313 * +--------------------------------------------------------------------+ 314 * | Start of dev_ops routines | 315 * +--------------------------------------------------------------------+ 316 */ 317 318 /* 319 * iscsi_getinfo - returns general driver information 320 */ 321 /* ARGSUSED */ 322 static int 323 iscsi_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, 324 void *arg, void **result) 325 { 326 int rval = DDI_SUCCESS; 327 int instance = getminor((dev_t)arg); 328 iscsi_hba_t *ip; 329 330 switch (infocmd) { 331 case DDI_INFO_DEVT2DEVINFO: 332 if ((ip = ddi_get_soft_state(iscsi_state, instance)) == NULL) { 333 return (DDI_FAILURE); 334 } 335 *result = ip->hba_dip; 336 if (ip->hba_dip == NULL) 337 rval = DDI_FAILURE; 338 else 339 rval = DDI_SUCCESS; 340 break; 341 342 case DDI_INFO_DEVT2INSTANCE: 343 *result = (void *)(uintptr_t)instance; 344 rval = DDI_SUCCESS; 345 break; 346 347 default: 348 rval = DDI_FAILURE; 349 break; 350 } 351 return (rval); 352 } 353 354 355 /* 356 * iscsi_attach -- Attach instance of an iSCSI HBA. We 357 * will attempt to create our HBA and register it with 358 * scsi_vhci. If it's not possible to create the HBA 359 * or register with vhci we will fail the attach. 360 */ 361 static int 362 iscsi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 363 { 364 int rval = DDI_SUCCESS; 365 int instance = ddi_get_instance(dip); 366 iscsi_hba_t *ihp = NULL; 367 scsi_hba_tran_t *tran = NULL; 368 char init_port_name[MAX_NAME_PROP_SIZE]; 369 370 switch (cmd) { 371 case DDI_ATTACH: 372 /* create iSCSH HBA devctl device node */ 373 if (ddi_create_minor_node(dip, ISCSI_DEVCTL, S_IFCHR, 0, 374 DDI_PSEUDO, 0) == DDI_SUCCESS) { 375 376 /* allocate HBA soft state */ 377 if (ddi_soft_state_zalloc(iscsi_state, instance) != 378 DDI_SUCCESS) { 379 ddi_remove_minor_node(dip, NULL); 380 rval = DDI_FAILURE; 381 break; 382 } 383 384 /* get reference to soft state */ 385 if ((ihp = (iscsi_hba_t *)ddi_get_soft_state( 386 iscsi_state, instance)) == NULL) { 387 ddi_remove_minor_node(dip, NULL); 388 ddi_soft_state_free(iscsi_state, instance); 389 rval = DDI_FAILURE; 390 break; 391 } 392 393 /* init HBA mutex used to protect discovery events */ 394 mutex_init(&ihp->hba_discovery_events_mutex, NULL, 395 MUTEX_DRIVER, NULL); 396 397 /* Get LDI ident */ 398 rval = ldi_ident_from_dip(dip, &ihp->hba_li); 399 ASSERT(rval == 0); /* Failure indicates invalid arg */ 400 401 /* init HBA mutex used to protect service status */ 402 mutex_init(&ihp->hba_service_lock, NULL, 403 MUTEX_DRIVER, NULL); 404 cv_init(&ihp->hba_service_cv, NULL, CV_DRIVER, NULL); 405 406 /* 407 * init SendTargets semaphore that is used to allow 408 * only one operation at a time 409 */ 410 sema_init(&ihp->hba_sendtgts_semaphore, 1, NULL, 411 SEMA_DRIVER, NULL); 412 413 ihp->hba_sess_list = NULL; 414 rw_init(&ihp->hba_sess_list_rwlock, NULL, 415 RW_DRIVER, NULL); 416 417 /* allocate scsi_hba_tran */ 418 if ((tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP)) 419 == NULL) { 420 ddi_remove_minor_node(dip, NULL); 421 goto iscsi_attach_failed2; 422 } 423 424 /* soft state setup */ 425 ihp->hba_sig = ISCSI_SIG_HBA; 426 ihp->hba_tran = tran; 427 ihp->hba_dip = dip; 428 ihp->hba_service_status = ISCSI_SERVICE_DISABLED; 429 ihp->hba_service_client_count = 0; 430 431 mutex_enter(&iscsi_oid_mutex); 432 ihp->hba_oid = iscsi_oid++; 433 mutex_exit(&iscsi_oid_mutex); 434 435 ihp->hba_name[0] = '\0'; 436 ihp->hba_name_length = 0; 437 ihp->hba_alias_length = 0; 438 ihp->hba_alias[0] = '\0'; 439 440 iscsi_net->tweaks.rcvbuf = ddi_prop_get_int( 441 DDI_DEV_T_ANY, ihp->hba_dip, 0, "so-rcvbuf", 442 ISCSI_SOCKET_RCVBUF_SIZE); 443 444 iscsi_net->tweaks.sndbuf = ddi_prop_get_int( 445 DDI_DEV_T_ANY, ihp->hba_dip, 0, "so-sndbuf", 446 ISCSI_SOCKET_SNDBUF_SIZE); 447 448 iscsi_net->tweaks.nodelay = ddi_prop_get_int( 449 DDI_DEV_T_ANY, ihp->hba_dip, 0, "tcp-nodelay", 450 ISCSI_TCP_NODELAY_DEFAULT); 451 452 iscsi_net->tweaks.conn_notify_threshold = 453 ddi_prop_get_int(DDI_DEV_T_ANY, 454 ihp->hba_dip, 0, "tcp-conn-notify-threshold", 455 ISCSI_TCP_CNOTIFY_THRESHOLD_DEFAULT); 456 457 iscsi_net->tweaks.conn_abort_threshold = 458 ddi_prop_get_int(DDI_DEV_T_ANY, ihp->hba_dip, 459 0, "tcp-conn-abort-threshold", 460 ISCSI_TCP_CABORT_THRESHOLD_DEFAULT); 461 462 iscsi_net->tweaks.abort_threshold = ddi_prop_get_int( 463 DDI_DEV_T_ANY, ihp->hba_dip, 0, 464 "tcp-abort-threshold", 465 ISCSI_TCP_ABORT_THRESHOLD_DEFAULT); 466 467 ihp->hba_config_storm_delay = ddi_prop_get_int( 468 DDI_DEV_T_ANY, ihp->hba_dip, 0, 469 "config-storm-delay", 470 ISCSI_CONFIG_STORM_DELAY_DEFAULT); 471 472 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 473 "so-rcvbuf", iscsi_net->tweaks.rcvbuf); 474 475 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 476 "so-sndbuf", iscsi_net->tweaks.sndbuf); 477 478 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 479 "tcp-nodelay", iscsi_net->tweaks.nodelay); 480 481 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 482 "tcp-conn-notify-threshold", 483 iscsi_net->tweaks.conn_notify_threshold); 484 485 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 486 "tcp-conn-abort-threshold", 487 iscsi_net->tweaks.conn_abort_threshold); 488 489 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 490 "tcp-abort-threshold", 491 iscsi_net->tweaks.abort_threshold); 492 493 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 494 "config-storm-delay", 495 ihp->hba_config_storm_delay); 496 497 /* setup hba defaults */ 498 iscsi_set_default_login_params(&ihp->hba_params); 499 500 /* setup minimal initiator params */ 501 iscsid_set_default_initiator_node_settings(ihp, B_TRUE); 502 503 /* hba set up */ 504 tran->tran_hba_private = ihp; 505 tran->tran_tgt_private = NULL; 506 tran->tran_tgt_init = iscsi_tran_lun_init; 507 tran->tran_tgt_probe = iscsi_tran_lun_probe; 508 tran->tran_tgt_free = iscsi_tran_lun_free; 509 tran->tran_start = iscsi_tran_start; 510 tran->tran_abort = iscsi_tran_abort; 511 tran->tran_reset = iscsi_tran_reset; 512 tran->tran_getcap = iscsi_tran_getcap; 513 tran->tran_setcap = iscsi_tran_setcap; 514 tran->tran_init_pkt = iscsi_tran_init_pkt; 515 tran->tran_destroy_pkt = iscsi_tran_destroy_pkt; 516 tran->tran_dmafree = iscsi_tran_dmafree; 517 tran->tran_sync_pkt = iscsi_tran_sync_pkt; 518 tran->tran_reset_notify = iscsi_tran_reset_notify; 519 tran->tran_bus_config = iscsi_tran_bus_config; 520 tran->tran_bus_unconfig = iscsi_tran_bus_unconfig; 521 522 tran->tran_get_name = iscsi_tran_get_name; 523 tran->tran_get_bus_addr = iscsi_tran_get_bus_addr; 524 tran->tran_interconnect_type = INTERCONNECT_ISCSI; 525 526 /* register scsi hba with scsa */ 527 if (scsi_hba_attach_setup(dip, &iscsi_dma_attr, 528 tran, SCSI_HBA_TRAN_CLONE) != DDI_SUCCESS) { 529 goto iscsi_attach_failed1; 530 } 531 532 /* register scsi hba with mdi (MPxIO/vhci) */ 533 if (mdi_phci_register(MDI_HCI_CLASS_SCSI, dip, 0) != 534 MDI_SUCCESS) { 535 ihp->hba_mpxio_enabled = B_FALSE; 536 } else { 537 ihp->hba_mpxio_enabled = B_TRUE; 538 } 539 540 (void) iscsi_hba_kstat_init(ihp); 541 542 /* Initialize targetparam list */ 543 iscsi_targetparam_init(); 544 545 /* Initialize ISID */ 546 ihp->hba_isid[0] = ISCSI_SUN_ISID_0; 547 ihp->hba_isid[1] = ISCSI_SUN_ISID_1; 548 ihp->hba_isid[2] = ISCSI_SUN_ISID_2; 549 ihp->hba_isid[3] = ISCSI_SUN_ISID_3; 550 ihp->hba_isid[4] = ISCSI_SUN_ISID_4; 551 ihp->hba_isid[5] = ISCSI_SUN_ISID_5; 552 553 /* Setup iSNS transport services and client */ 554 isns_client_init(); 555 556 /* 557 * initialize persistent store, 558 * or boot target info in case of iscsi boot 559 */ 560 ihp->hba_persistent_loaded = B_FALSE; 561 if (iscsid_init(ihp) == B_FALSE) { 562 goto iscsi_attach_failed0; 563 } 564 565 /* Setup init_port_name for MPAPI */ 566 (void) snprintf(init_port_name, MAX_NAME_PROP_SIZE, 567 "%s,%02x%02x%02x%02x%02x%02x", 568 (char *)ihp->hba_name, ihp->hba_isid[0], 569 ihp->hba_isid[1], ihp->hba_isid[2], 570 ihp->hba_isid[3], ihp->hba_isid[4], 571 ihp->hba_isid[5]); 572 573 if (ddi_prop_update_string(DDI_DEV_T_NONE, dip, 574 "initiator-port", init_port_name) != 575 DDI_PROP_SUCCESS) { 576 cmn_err(CE_WARN, "iscsi_attach: Creating " 577 "initiator-port property on iSCSI " 578 "HBA(%s) with dip(%d) Failed", 579 (char *)ihp->hba_name, 580 ddi_get_instance(dip)); 581 } 582 583 ddi_report_dev(dip); 584 } else { 585 rval = DDI_FAILURE; 586 } 587 break; 588 589 iscsi_attach_failed0: 590 isns_client_cleanup(); 591 if (ihp->stats.ks) { 592 (void) iscsi_hba_kstat_term(ihp); 593 } 594 if (ihp->hba_mpxio_enabled == B_TRUE) { 595 (void) mdi_phci_unregister(dip, 0); 596 } 597 (void) scsi_hba_detach(ihp->hba_dip); 598 iscsi_attach_failed1: 599 ddi_remove_minor_node(dip, NULL); 600 ddi_prop_remove_all(ihp->hba_dip); 601 scsi_hba_tran_free(tran); 602 iscsi_attach_failed2: 603 cv_destroy(&ihp->hba_service_cv); 604 mutex_destroy(&ihp->hba_service_lock); 605 mutex_destroy(&ihp->hba_discovery_events_mutex); 606 sema_destroy(&ihp->hba_sendtgts_semaphore); 607 rw_destroy(&ihp->hba_sess_list_rwlock); 608 ddi_soft_state_free(iscsi_state, instance); 609 rval = DDI_FAILURE; 610 break; 611 612 case DDI_RESUME: 613 break; 614 615 default: 616 rval = DDI_FAILURE; 617 } 618 619 if (rval != DDI_SUCCESS) { 620 cmn_err(CE_WARN, "iscsi driver unable to attach " 621 "hba instance %d", instance); 622 } 623 624 return (rval); 625 } 626 627 /* 628 * iscsi_detach - called on unload of hba instance 629 */ 630 static int 631 iscsi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 632 { 633 int rval = DDI_SUCCESS; 634 scsi_hba_tran_t *tran = NULL; 635 iscsi_hba_t *ihp = NULL; 636 iscsi_hba_t *ihp_check = NULL; 637 int instance; 638 char *init_node_name; 639 640 instance = ddi_get_instance(dip); 641 642 switch (cmd) { 643 case DDI_DETACH: 644 if (!(tran = (scsi_hba_tran_t *)ddi_get_driver_private(dip))) { 645 rval = DDI_SUCCESS; 646 break; 647 } 648 649 if ((ihp = (iscsi_hba_t *)tran->tran_hba_private) == NULL) { 650 rval = DDI_FAILURE; 651 break; 652 } 653 654 /* 655 * Validate that what is stored by the DDI framework is still 656 * the same state structure referenced by the SCSI framework 657 */ 658 ihp_check = ddi_get_soft_state(iscsi_state, instance); 659 if (ihp_check != ihp) { 660 rval = DDI_FAILURE; 661 break; 662 } 663 664 /* If a session exists we can't safely detach */ 665 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 666 if (ihp->hba_sess_list != NULL) { 667 rw_exit(&ihp->hba_sess_list_rwlock); 668 rval = DDI_FAILURE; 669 break; 670 } 671 rw_exit(&ihp->hba_sess_list_rwlock); 672 673 /* Disable all discovery services */ 674 if (iscsid_disable_discovery(ihp, 675 ISCSI_ALL_DISCOVERY_METHODS) == B_FALSE) { 676 /* Disable failed. Fail detach */ 677 rval = DDI_FAILURE; 678 break; 679 } 680 681 /* Deregister from iSNS server(s). */ 682 init_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 683 if (persistent_initiator_name_get(init_node_name, 684 ISCSI_MAX_NAME_LEN) == B_TRUE) { 685 if (strlen(init_node_name) > 0) { 686 (void) isns_dereg(ihp->hba_isid, 687 (uint8_t *)init_node_name); 688 } 689 } 690 kmem_free(init_node_name, ISCSI_MAX_NAME_LEN); 691 init_node_name = NULL; 692 693 /* Cleanup iSNS Client */ 694 isns_client_cleanup(); 695 696 iscsi_targetparam_cleanup(); 697 698 /* Cleanup iscsid resources */ 699 iscsid_fini(); 700 701 if (rval != DDI_SUCCESS) { 702 break; 703 } 704 /* kstat hba. destroy */ 705 KSTAT_DEC_HBA_CNTR_SESS(ihp); 706 707 if (ihp->hba_mpxio_enabled == B_TRUE) { 708 (void) mdi_phci_unregister(dip, 0); 709 } 710 ddi_remove_minor_node(dip, NULL); 711 712 ddi_prop_remove_all(ihp->hba_dip); 713 714 ldi_ident_release(ihp->hba_li); 715 716 cv_destroy(&ihp->hba_service_cv); 717 mutex_destroy(&ihp->hba_service_lock); 718 mutex_destroy(&ihp->hba_discovery_events_mutex); 719 rw_destroy(&ihp->hba_sess_list_rwlock); 720 (void) iscsi_hba_kstat_term(ihp); 721 722 (void) scsi_hba_detach(dip); 723 if (tran != NULL) { 724 scsi_hba_tran_free(tran); 725 } 726 ddi_soft_state_free(iscsi_state, instance); 727 break; 728 default: 729 break; 730 } 731 732 if (rval != DDI_SUCCESS) { 733 cmn_err(CE_WARN, "iscsi driver unable to " 734 "detach hba instance %d", instance); 735 } 736 737 return (rval); 738 } 739 740 /* 741 * +--------------------------------------------------------------------+ 742 * | End of dev_ops routines | 743 * +--------------------------------------------------------------------+ 744 */ 745 746 /* 747 * +--------------------------------------------------------------------+ 748 * | scsi_tran(9E) routines | 749 * +--------------------------------------------------------------------+ 750 */ 751 752 /* 753 * iscsi_tran_lun_init - Find target device based on SCSI device 754 * Based on the information given (SCSI device, target dev_info) find 755 * the target iSCSI device and put a pointer to that information in 756 * the scsi_hba_tran_t structure. 757 */ 758 static int 759 iscsi_tran_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 760 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 761 { 762 int rval = 0; 763 int type = 0; 764 765 ASSERT(hba_tran->tran_hba_private != NULL); 766 767 /* 768 * Child node is getting initialized. Look at the mpxio component 769 * type on the child device to see if this device is mpxio managed 770 * or not. 771 */ 772 type = mdi_get_component_type(lun_dip); 773 if (type != MDI_COMPONENT_CLIENT) { 774 rval = iscsi_phys_lun_init(hba_dip, lun_dip, hba_tran, sd); 775 } else { 776 rval = iscsi_virt_lun_init(hba_dip, lun_dip, hba_tran, sd); 777 } 778 779 return (rval); 780 } 781 782 /* 783 * iscsi_tran_lun_probe - This function didn't need to be implemented. 784 * We could have left NULL in the tran table. Since this isn't a 785 * performance path this seems safe. We are just wrappering the 786 * function so we can see the call go through if we have debugging 787 * enabled. 788 */ 789 static int 790 iscsi_tran_lun_probe(struct scsi_device *sd, int (*callback) ()) 791 { 792 int rval = 0; 793 794 rval = scsi_hba_probe(sd, callback); 795 796 return (rval); 797 } 798 799 /* 800 * iscsi_init_pkt - Allocate SCSI packet and fill in required info. 801 */ 802 /* ARGSUSED */ 803 static struct scsi_pkt * 804 iscsi_tran_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, 805 struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags, 806 int (*callback) (), caddr_t arg) 807 { 808 iscsi_lun_t *ilp; 809 iscsi_cmd_t *icmdp; 810 811 ASSERT(ap != NULL); 812 ASSERT(callback == NULL_FUNC || callback == SLEEP_FUNC); 813 814 /* 815 * The software stack doesn't have DMA which means the iSCSI 816 * protocol layer will be doing a bcopy from bp to outgoing 817 * streams buffers. Make sure that the buffer is mapped in 818 * so that the copy won't panic the system. 819 */ 820 if (bp && (bp->b_bcount != 0) && 821 bp_mapin_common(bp, (callback == NULL_FUNC) ? 822 VM_NOSLEEP : VM_SLEEP) == NULL) { 823 return (NULL); 824 } 825 826 ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; 827 ASSERT(ilp != NULL); 828 829 if (pkt == NULL) { 830 pkt = scsi_hba_pkt_alloc(ilp->lun_sess->sess_hba->hba_dip, 831 ap, cmdlen, statuslen, tgtlen, sizeof (iscsi_cmd_t), 832 callback, arg); 833 if (pkt == NULL) { 834 return (NULL); 835 } 836 icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; 837 icmdp->cmd_sig = ISCSI_SIG_CMD; 838 icmdp->cmd_state = ISCSI_CMD_STATE_FREE; 839 icmdp->cmd_lun = ilp; 840 icmdp->cmd_type = ISCSI_CMD_TYPE_SCSI; 841 /* add the report lun addressing type on to the lun */ 842 icmdp->cmd_un.scsi.lun = ilp->lun_addr_type << 14; 843 icmdp->cmd_un.scsi.lun = icmdp->cmd_un.scsi.lun | 844 ilp->lun_num; 845 icmdp->cmd_un.scsi.pkt = pkt; 846 icmdp->cmd_un.scsi.bp = bp; 847 icmdp->cmd_un.scsi.cmdlen = cmdlen; 848 icmdp->cmd_un.scsi.statuslen = statuslen; 849 icmdp->cmd_crc_error_seen = B_FALSE; 850 icmdp->cmd_misc_flags = 0; 851 if (flags & PKT_XARQ) { 852 icmdp->cmd_misc_flags |= ISCSI_CMD_MISCFLAG_XARQ; 853 } 854 855 856 idm_sm_audit_init(&icmdp->cmd_state_audit); 857 858 mutex_init(&icmdp->cmd_mutex, NULL, MUTEX_DRIVER, NULL); 859 cv_init(&icmdp->cmd_completion, NULL, CV_DRIVER, NULL); 860 861 pkt->pkt_address = *ap; 862 pkt->pkt_comp = (void (*)())NULL; 863 pkt->pkt_flags = 0; 864 pkt->pkt_time = 0; 865 pkt->pkt_resid = 0; 866 pkt->pkt_statistics = 0; 867 pkt->pkt_reason = 0; 868 } 869 return (pkt); 870 } 871 872 /* 873 * iscsi_tran_lun_free - Free a SCSI LUN 874 */ 875 static void 876 iscsi_tran_lun_free(dev_info_t *hba_dip, dev_info_t *lun_dip, 877 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 878 { 879 iscsi_lun_t *ilp = NULL; 880 881 ASSERT(hba_dip != NULL); 882 ASSERT(lun_dip != NULL); 883 ASSERT(hba_tran != NULL); 884 ASSERT(sd != NULL); 885 ilp = (iscsi_lun_t *)hba_tran->tran_tgt_private; 886 ASSERT(ilp != NULL); 887 888 (void) mdi_prop_remove(ilp->lun_pip, NULL); 889 } 890 891 /* 892 * iscsi_start -- Start a SCSI transaction based on the packet 893 * This will attempt to add the icmdp to the pending queue 894 * for the connection and kick the queue. If the enqueue 895 * fails that means the queue is full. 896 */ 897 static int 898 iscsi_tran_start(struct scsi_address *ap, struct scsi_pkt *pkt) 899 { 900 iscsi_lun_t *ilp = NULL; 901 iscsi_sess_t *isp = NULL; 902 iscsi_cmd_t *icmdp = NULL; 903 uint_t flags; 904 905 ASSERT(ap != NULL); 906 ASSERT(pkt != NULL); 907 ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; 908 isp = (iscsi_sess_t *)ilp->lun_sess; 909 icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; 910 flags = pkt->pkt_flags; 911 ASSERT(ilp != NULL); 912 ASSERT(isp != NULL); 913 ASSERT(icmdp != NULL); 914 915 /* 916 * If the session is in the FREE state then 917 * all connections are down and retries have 918 * been exhausted. Fail command with fatal error. 919 */ 920 mutex_enter(&isp->sess_state_mutex); 921 if (isp->sess_state == ISCSI_SESS_STATE_FREE) { 922 mutex_exit(&isp->sess_state_mutex); 923 return (TRAN_FATAL_ERROR); 924 } 925 926 /* 927 * If the session is not in LOGGED_IN then we have 928 * no connections LOGGED_IN, but we haven't exhuasted 929 * our retries. Fail the command with busy so the 930 * caller might try again later. Once retries are 931 * exhausted the state machine will move us to FREE. 932 */ 933 if (isp->sess_state != ISCSI_SESS_STATE_LOGGED_IN) { 934 mutex_exit(&isp->sess_state_mutex); 935 return (TRAN_BUSY); 936 } 937 938 /* 939 * If we haven't received data from the target in the 940 * max specified period something is wrong with the 941 * transport. Fail IO with FATAL_ERROR. 942 */ 943 if (isp->sess_rx_lbolt + SEC_TO_TICK(iscsi_rx_max_window) < 944 ddi_get_lbolt()) { 945 mutex_exit(&isp->sess_state_mutex); 946 return (TRAN_FATAL_ERROR); 947 } 948 949 /* 950 * If we haven't received data from the target in the 951 * specified period something is probably wrong with 952 * the transport. Just return back BUSY until either 953 * the problem is resolved of the transport fails. 954 */ 955 if (isp->sess_rx_lbolt + SEC_TO_TICK(iscsi_rx_window) < 956 ddi_get_lbolt()) { 957 mutex_exit(&isp->sess_state_mutex); 958 return (TRAN_BUSY); 959 } 960 961 962 /* reset cmd values in case upper level driver is retrying cmd */ 963 icmdp->cmd_prev = icmdp->cmd_next = NULL; 964 icmdp->cmd_crc_error_seen = B_FALSE; 965 icmdp->cmd_lbolt_pending = icmdp->cmd_lbolt_active = 966 icmdp->cmd_lbolt_aborting = icmdp->cmd_lbolt_timeout = 967 (clock_t)NULL; 968 icmdp->cmd_itt = icmdp->cmd_ttt = 0; 969 icmdp->cmd_un.scsi.abort_icmdp = NULL; 970 971 mutex_enter(&isp->sess_queue_pending.mutex); 972 iscsi_cmd_state_machine(icmdp, ISCSI_CMD_EVENT_E1, isp); 973 mutex_exit(&isp->sess_queue_pending.mutex); 974 mutex_exit(&isp->sess_state_mutex); 975 976 /* 977 * If this packet doesn't have FLAG_NOINTR set, it could have 978 * already run to completion (and the memory freed) at this 979 * point, so check our local copy of pkt_flags. Otherwise we 980 * have to wait for completion before returning to the caller. 981 */ 982 if (flags & FLAG_NOINTR) { 983 mutex_enter(&icmdp->cmd_mutex); 984 while ((icmdp->cmd_state != ISCSI_CMD_STATE_COMPLETED) || 985 (icmdp->cmd_un.scsi.r2t_icmdp != NULL) || 986 (icmdp->cmd_un.scsi.abort_icmdp != NULL) || 987 (icmdp->cmd_un.scsi.r2t_more == B_TRUE)) { 988 cv_wait(&icmdp->cmd_completion, &icmdp->cmd_mutex); 989 } 990 icmdp->cmd_state = ISCSI_CMD_STATE_FREE; 991 mutex_exit(&icmdp->cmd_mutex); 992 } 993 994 return (TRAN_ACCEPT); 995 } 996 997 /* 998 * iscsi_tran_abort - Called when an upper level application 999 * or driver wants to kill a scsi_pkt that was already sent to 1000 * this driver. 1001 */ 1002 /* ARGSUSED */ 1003 static int 1004 iscsi_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt) 1005 { 1006 return (0); 1007 } 1008 1009 /* 1010 * iscsi_tran_reset - Reset target at either BUS, TARGET, or LUN 1011 * level. This will require the issuing of a task management 1012 * command down to the target/lun. 1013 */ 1014 static int 1015 iscsi_tran_reset(struct scsi_address *ap, int level) 1016 { 1017 int rval = ISCSI_STATUS_INTERNAL_ERROR; 1018 iscsi_sess_t *isp = NULL; 1019 iscsi_lun_t *ilp = NULL; 1020 1021 ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; 1022 ASSERT(ilp != NULL); 1023 isp = ilp->lun_sess; 1024 ASSERT(isp != NULL); 1025 1026 switch (level) { 1027 case RESET_LUN: 1028 /* reset attempt will block until attempt is complete */ 1029 rval = iscsi_handle_reset(isp, level, ilp); 1030 break; 1031 case RESET_BUS: 1032 /* 1033 * What are we going to realy reset the ethernet 1034 * network!? Just fall through to a target reset. 1035 */ 1036 case RESET_TARGET: 1037 /* reset attempt will block until attempt is complete */ 1038 rval = iscsi_handle_reset(isp, level, NULL); 1039 break; 1040 case RESET_ALL: 1041 default: 1042 break; 1043 } 1044 1045 return (ISCSI_SUCCESS(rval) ? 1 : 0); 1046 } 1047 1048 /* 1049 * iscsi_tran_getcap - Get target/lun capabilities. 1050 */ 1051 static int 1052 iscsi_tran_getcap(struct scsi_address *ap, char *cap, int whom) 1053 { 1054 return (iscsi_i_commoncap(ap, cap, 0, whom, 0)); 1055 } 1056 1057 1058 /* 1059 * iscsi_tran_setcap - Set target/lun capabilities. 1060 */ 1061 /* ARGSUSED */ 1062 static int 1063 iscsi_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom) 1064 { 1065 return (iscsi_i_commoncap(ap, cap, 0, whom, 1)); 1066 } 1067 1068 1069 /* 1070 * iscsi_tran_destroy_pkt - Clean up packet 1071 */ 1072 static void 1073 iscsi_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) 1074 { 1075 iscsi_cmd_t *icmdp; 1076 1077 icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; 1078 1079 ASSERT(icmdp != NULL); 1080 ASSERT(icmdp->cmd_sig == ISCSI_SIG_CMD); 1081 ASSERT(icmdp->cmd_state == ISCSI_CMD_STATE_FREE); 1082 1083 mutex_destroy(&icmdp->cmd_mutex); 1084 cv_destroy(&icmdp->cmd_completion); 1085 scsi_hba_pkt_free(ap, pkt); 1086 } 1087 1088 /* 1089 * iscsi_tran_dmafree - This is a software driver, NO DMA 1090 */ 1091 /* ARGSUSED */ 1092 static void 1093 iscsi_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) 1094 { 1095 /* 1096 * The iSCSI interface doesn't deal with DMA 1097 */ 1098 } 1099 1100 /* 1101 * iscsi_tran_sync_pkt - This is a software driver, NO DMA 1102 */ 1103 /* ARGSUSED */ 1104 static void 1105 iscsi_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) 1106 { 1107 /* 1108 * The iSCSI interface doesn't deal with DMA 1109 */ 1110 } 1111 1112 /* 1113 * iscsi_tran_reset_notify - We don't support BUS_RESET so there 1114 * is no point in support callback. 1115 */ 1116 /* ARGSUSED */ 1117 static int 1118 iscsi_tran_reset_notify(struct scsi_address *ap, int flag, 1119 void (*callback) (caddr_t), caddr_t arg) 1120 { 1121 1122 /* 1123 * We never do BUS_RESETS so allowing this call 1124 * back to register has no point? 1125 */ 1126 return (DDI_SUCCESS); 1127 } 1128 1129 1130 /* 1131 * iscsi_tran_bus_config - on demand device configuration 1132 * 1133 * iscsi_tran_bus_config is called by the NDI layer at the completion 1134 * of a dev_node creation. There are two primary cases defined in this 1135 * function. The first is BUS_CONFIG_ALL. In this case the NDI is trying 1136 * to identify that targets/luns are available configured at that point 1137 * in time. It is safe to just complete the process succcessfully. The 1138 * second case is a new case that was defined in S10 for devfs. BUS_CONFIG_ONE 1139 * this is to help driver the top down discovery instead of bottom up. If 1140 * we receive a BUS_CONFIG_ONE we should check to see if the <addr> exists 1141 * if so complete successfull processing. Otherwise we should call the 1142 * deamon and see if we can plumb the <addr>. If it is possible to plumb the 1143 * <addr> block until plumbing is complete. In both cases of being able to 1144 * plumb <addr> or not continue with successfull processing. 1145 */ 1146 static int 1147 iscsi_tran_bus_config(dev_info_t *parent, uint_t flags, 1148 ddi_bus_config_op_t op, void *arg, dev_info_t **childp) 1149 { 1150 int rval = NDI_SUCCESS; 1151 iscsi_hba_t *ihp = NULL; 1152 int iflags = flags; 1153 char *name = NULL; 1154 char *ptr = NULL; 1155 boolean_t config_root = B_FALSE; 1156 1157 /* get reference to soft state */ 1158 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, 1159 ddi_get_instance(parent)); 1160 if (ihp == NULL) { 1161 return (NDI_FAILURE); 1162 } 1163 1164 iscsi_check_miniroot(ihp); 1165 if ((modrootloaded == 0) && (iscsiboot_prop != NULL)) { 1166 config_root = B_TRUE; 1167 } 1168 1169 if (config_root == B_FALSE) { 1170 if (iscsi_client_request_service(ihp) == B_FALSE) { 1171 return (NDI_FAILURE); 1172 } 1173 } 1174 1175 /* lock so only one config operation occrs */ 1176 sema_p(&iscsid_config_semaphore); 1177 1178 switch (op) { 1179 case BUS_CONFIG_ONE: 1180 /* parse target name out of name given */ 1181 if ((ptr = strchr((char *)arg, '@')) == NULL) { 1182 rval = NDI_FAILURE; 1183 break; 1184 } 1185 ptr++; /* move past '@' */ 1186 name = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); 1187 (void) strncpy(name, ptr, MAX_GET_NAME_SIZE); 1188 /* We need to strip the LUN */ 1189 if ((ptr = strchr(name, ',')) == NULL) { 1190 rval = NDI_FAILURE; 1191 kmem_free(name, MAX_GET_NAME_SIZE); 1192 name = NULL; 1193 break; 1194 } 1195 /* We also need to strip the 4 bytes of hex TPGT */ 1196 ptr -= 4; 1197 if (ptr <= name) { 1198 rval = NDI_FAILURE; 1199 kmem_free(name, MAX_GET_NAME_SIZE); 1200 name = NULL; 1201 break; 1202 } 1203 *ptr = '\0'; /* NULL terminate */ 1204 1205 /* translate name back to original iSCSI name */ 1206 iscsi_get_name_to_iqn(name, MAX_GET_NAME_SIZE); 1207 1208 /* configure target, skip 4 byte ISID */ 1209 iscsid_config_one(ihp, (name+4), B_TRUE); 1210 1211 kmem_free(name, MAX_GET_NAME_SIZE); 1212 name = NULL; 1213 1214 /* 1215 * DDI group instructed us to use this flag. 1216 */ 1217 iflags |= NDI_MDI_FALLBACK; 1218 break; 1219 case BUS_CONFIG_DRIVER: 1220 /* FALLTHRU */ 1221 case BUS_CONFIG_ALL: 1222 iscsid_config_all(ihp, B_TRUE); 1223 break; 1224 default: 1225 rval = NDI_FAILURE; 1226 break; 1227 } 1228 1229 if (rval == NDI_SUCCESS) { 1230 rval = ndi_busop_bus_config(parent, iflags, 1231 op, arg, childp, 0); 1232 } 1233 sema_v(&iscsid_config_semaphore); 1234 1235 if (config_root == B_FALSE) { 1236 iscsi_client_release_service(ihp); 1237 } 1238 1239 return (rval); 1240 } 1241 1242 /* 1243 * iscsi_tran_bus_unconfig - on demand device unconfiguration 1244 * 1245 * Called by the os framework under low resource situations. 1246 * It will attempt to unload our minor nodes (logical units 1247 * ndi/mdi nodes). 1248 */ 1249 static int 1250 iscsi_tran_bus_unconfig(dev_info_t *parent, uint_t flag, 1251 ddi_bus_config_op_t op, void *arg) 1252 { 1253 int rval = NDI_SUCCESS; 1254 iscsi_hba_t *ihp = NULL; 1255 1256 /* get reference to soft state */ 1257 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, 1258 ddi_get_instance(parent)); 1259 if (ihp == NULL) { 1260 return (NDI_FAILURE); 1261 } 1262 1263 if (iscsi_client_request_service(ihp) == B_FALSE) { 1264 return (NDI_FAILURE); 1265 } 1266 1267 rval = ndi_busop_bus_unconfig(parent, flag, op, arg); 1268 1269 iscsi_client_release_service(ihp); 1270 1271 return (rval); 1272 } 1273 1274 1275 /* 1276 * iscsi_tran_get_name - create private /devices name for LUN 1277 * 1278 * This creates the <addr> in /devices/iscsi/<driver>@<addr> 1279 * path. For this <addr> we return the <session/target_name>,<lun num> 1280 * Where <target_name> is an <iqn/eui/...> as defined by the iSCSI 1281 * specification. We do modify the name slightly so that it still 1282 * complies with the IEEE <addr> naming scheme. This means that we 1283 * will substitute out the ':', '@', ... and other reserved characters 1284 * defined in the IEEE definition with '%<hex value of special char>' 1285 * This routine is indirectly called by iscsi_lun_create_xxx. These 1286 * calling routines must prevent the session and lun lists from changing 1287 * during this routine. 1288 */ 1289 static int 1290 iscsi_tran_get_name(struct scsi_device *sd, char *name, int len) 1291 { 1292 int target = 0; 1293 int lun = 0; 1294 iscsi_hba_t *ihp = NULL; 1295 iscsi_sess_t *isp = NULL; 1296 iscsi_lun_t *ilp = NULL; 1297 dev_info_t *lun_dip = NULL; 1298 1299 ASSERT(sd != NULL); 1300 ASSERT(name != NULL); 1301 lun_dip = sd->sd_dev; 1302 ASSERT(lun_dip != NULL); 1303 1304 /* get reference to soft state */ 1305 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, 1306 ddi_get_instance(ddi_get_parent(lun_dip))); 1307 if (ihp == NULL) { 1308 name[0] = '\0'; 1309 return (0); 1310 } 1311 1312 /* Get the target num */ 1313 target = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, 1314 DDI_PROP_DONTPASS, TARGET_PROP, 0); 1315 1316 /* Get the target num */ 1317 lun = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, 1318 DDI_PROP_DONTPASS, LUN_PROP, 0); 1319 1320 /* 1321 * Now we need to find our ilp by walking the lists 1322 * off the ihp and isp. 1323 */ 1324 /* See if we already created this session */ 1325 1326 /* Walk the HBA's session list */ 1327 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 1328 /* compare target name as the unique identifier */ 1329 if (target == isp->sess_oid) { 1330 /* found match */ 1331 break; 1332 } 1333 } 1334 1335 /* If we found matching session continue searching for tgt */ 1336 if (isp == NULL) { 1337 /* sess not found */ 1338 name[0] = '\0'; 1339 return (0); 1340 } 1341 1342 /* 1343 * Search for the matching iscsi lun structure. We don't 1344 * need to hold the READER for the lun list at this point. 1345 * because the tran_get_name is being called from the online 1346 * function which is already holding a reader on the lun 1347 * list. 1348 */ 1349 for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { 1350 if (lun == ilp->lun_num) { 1351 /* found match */ 1352 break; 1353 } 1354 } 1355 1356 if (ilp == NULL) { 1357 /* tgt not found */ 1358 name[0] = '\0'; 1359 return (0); 1360 } 1361 1362 /* Ensure enough space for lun_addr is available */ 1363 ASSERT(ilp->lun_addr != NULL); 1364 if ((strlen(ilp->lun_addr) + 1) > len) { 1365 return (0); 1366 } 1367 1368 /* copy lun_addr name */ 1369 (void) strcpy(name, ilp->lun_addr); 1370 1371 /* 1372 * Based on IEEE-1275 we can't have any ':', ' ', '@', or '/' 1373 * characters in our naming. So replace all those characters 1374 * with '-' 1375 */ 1376 iscsi_get_name_from_iqn(name, len); 1377 1378 return (1); 1379 } 1380 1381 /* 1382 * iscsi_tran_get_bus_addr - This returns a human readable string 1383 * for the bus address. Examining most other drivers fcp, etc. They 1384 * all just return the same string as tran_get_name. In our case 1385 * our tran get name is already some what usable so leave alone. 1386 */ 1387 static int 1388 iscsi_tran_get_bus_addr(struct scsi_device *sd, char *name, int len) 1389 { 1390 return (iscsi_tran_get_name(sd, name, len)); 1391 } 1392 1393 1394 /* 1395 * +--------------------------------------------------------------------+ 1396 * | End of scsi_tran routines | 1397 * +--------------------------------------------------------------------+ 1398 */ 1399 1400 /* 1401 * +--------------------------------------------------------------------+ 1402 * | Start of cb_ops routines | 1403 * +--------------------------------------------------------------------+ 1404 */ 1405 1406 /* 1407 * iscsi_open - Driver should be made IOCTL MT safe. Otherwise 1408 * this function needs updated. 1409 */ 1410 /* ARGSUSED */ 1411 static int 1412 iscsi_open(dev_t *devp, int flags, int otyp, cred_t *credp) 1413 { 1414 return (0); 1415 } 1416 1417 /* 1418 * iscsi_close - 1419 */ 1420 /* ARGSUSED */ 1421 static int 1422 iscsi_close(dev_t dev, int flags, int otyp, cred_t *credp) 1423 { 1424 return (0); 1425 } 1426 1427 /* 1428 * iscsi_ioctl - 1429 */ 1430 /* ARGSUSED */ 1431 static int 1432 iscsi_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 1433 cred_t *credp, int *rvalp) 1434 { 1435 int rtn = 0; 1436 int instance = 0; 1437 int list_space = 0; 1438 int lun_sz = 0; 1439 int did; 1440 int retry; 1441 iscsi_hba_t *ihp = NULL; 1442 iscsi_sess_t *isp = NULL; 1443 iscsi_conn_t *icp = NULL; 1444 iscsi_login_params_t *params = NULL; 1445 iscsi_login_params_t *tmpParams = NULL; 1446 uchar_t *name = NULL; 1447 dev_info_t *lun_dip = NULL; 1448 1449 entry_t e; 1450 iscsi_oid_t oid; 1451 iscsi_property_t *ipp; 1452 iscsi_static_property_t *ispp; 1453 iscsi_param_get_t *ilg; 1454 iscsi_param_set_t *ils; 1455 iscsi_target_list_t idl, *idlp = NULL; 1456 iscsi_addr_list_t ial, *ialp = NULL; 1457 iscsi_chap_props_t *chap = NULL; 1458 iscsi_radius_props_t *radius = NULL; 1459 iscsi_auth_props_t *auth = NULL; 1460 iscsi_lun_list_t *ll, *llp = NULL; 1461 iscsi_lun_props_t *lun = NULL; 1462 iscsi_lun_t *ilp = NULL; 1463 iSCSIDiscoveryMethod_t method; 1464 iSCSIDiscoveryProperties_t discovery_props; 1465 iscsi_uscsi_t iu; 1466 iscsi_uscsi_t iu_caller; 1467 #ifdef _MULTI_DATAMODEL 1468 /* For use when a 32 bit app makes a call into a 64 bit ioctl */ 1469 iscsi_uscsi32_t iu32_caller; 1470 model_t model; 1471 #endif /* _MULTI_DATAMODEL */ 1472 void *void_p; 1473 iscsi_sendtgts_list_t *stl_hdr; 1474 iscsi_sendtgts_list_t *istl; 1475 int stl_sz; 1476 iscsi_target_entry_t *target; 1477 uint32_t old_oid; 1478 uint32_t target_oid; 1479 iscsi_targetparam_entry_t *curr_entry; 1480 char *initiator_node_name; 1481 char *initiator_node_alias; 1482 isns_portal_group_list_t *pg_list = NULL; 1483 isns_server_portal_group_list_t *server_pg_list_hdr = NULL; 1484 isns_server_portal_group_list_t *server_pg_list = NULL; 1485 int pg_list_sz, pg_sz_copy_out, server_pg_list_sz; 1486 iscsi_config_sess_t *ics; 1487 int size; 1488 boolean_t rval; 1489 char init_port_name[MAX_NAME_PROP_SIZE]; 1490 iscsi_sockaddr_t addr_dsc; 1491 iscsi_boot_property_t *bootProp; 1492 boolean_t discovered = B_TRUE; 1493 1494 instance = getminor(dev); 1495 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, instance); 1496 if (ihp == NULL) 1497 return (EFAULT); 1498 1499 iscsi_check_miniroot(ihp); 1500 if ((cmd != ISCSI_SMF_ONLINE) && (cmd != ISCSI_SMF_OFFLINE) && 1501 (cmd != ISCSI_SMF_GET)) { 1502 /* other cmd needs to acquire the service */ 1503 if (iscsi_client_request_service(ihp) == B_FALSE) { 1504 return (EFAULT); 1505 } 1506 } 1507 1508 switch (cmd) { 1509 /* 1510 * ISCSI_CREATE_OID - Create a Object IDentifier for a TargetName 1511 */ 1512 case ISCSI_CREATE_OID: 1513 if (ddi_copyin((caddr_t)arg, &oid, sizeof (oid), mode)) { 1514 rtn = EFAULT; 1515 break; 1516 } 1517 if (oid.o_vers != ISCSI_INTERFACE_VERSION) { 1518 rtn = EINVAL; 1519 break; 1520 } 1521 1522 /* Set the target that this session is associated with */ 1523 oid.o_oid = iscsi_targetparam_get_oid(oid.o_name); 1524 1525 if (ddi_copyout(&oid, (caddr_t)arg, sizeof (oid), mode)) { 1526 rtn = EFAULT; 1527 break; 1528 } 1529 break; 1530 /* 1531 * ISCSI_PARAM_GET - Get param for specified 1532 * connection/session. 1533 */ 1534 case ISCSI_PARAM_GET: 1535 /* copyin user args */ 1536 ilg = (iscsi_param_get_t *)kmem_alloc(sizeof (*ilg), KM_SLEEP); 1537 if (ddi_copyin((caddr_t)arg, ilg, sizeof (*ilg), mode)) { 1538 rtn = EFAULT; 1539 kmem_free(ilg, sizeof (*ilg)); 1540 break; 1541 } 1542 1543 if (ilg->g_vers != ISCSI_INTERFACE_VERSION) { 1544 rtn = EINVAL; 1545 kmem_free(ilg, sizeof (*ilg)); 1546 break; 1547 } 1548 1549 /* handle special case for Initiator name */ 1550 if (ilg->g_param == ISCSI_LOGIN_PARAM_INITIATOR_NAME) { 1551 (void) strlcpy((char *)ilg->g_value.v_name, 1552 (char *)ihp->hba_name, ISCSI_MAX_NAME_LEN); 1553 } else if (ilg->g_param == ISCSI_LOGIN_PARAM_INITIATOR_ALIAS) { 1554 if (ihp->hba_alias_length == 0) { 1555 rtn = EINVAL; 1556 } else { 1557 (void) strlcpy((char *)ilg->g_value.v_name, 1558 (char *)ihp->hba_alias, ISCSI_MAX_NAME_LEN); 1559 } 1560 } else { 1561 /* To describe the validity of the requested param */ 1562 boolean_t valid_flag = B_TRUE; 1563 1564 name = NULL; 1565 1566 /* 1567 * switch login based if looking for initiator 1568 * params 1569 */ 1570 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 1571 if (ilg->g_oid == ihp->hba_oid) { 1572 /* initiator */ 1573 params = &ihp->hba_params; 1574 name = ihp->hba_name; 1575 if (iscsi_get_persisted_param(name, 1576 ilg, params) != 0) { 1577 valid_flag = B_FALSE; 1578 } 1579 } else { 1580 /* 1581 * If the oid does represent a session check 1582 * to see if it is a target oid. If so, 1583 * return the target's associated session. 1584 */ 1585 rtn = iscsi_sess_get(ilg->g_oid, ihp, &isp); 1586 if (rtn != 0) { 1587 rtn = iscsi_sess_get_by_target( 1588 ilg->g_oid, ihp, &isp); 1589 } 1590 1591 /* 1592 * If rtn is zero then we have found an 1593 * existing session. Use the session name to 1594 * do param lookup. If rtn is non-zero then 1595 * create a targetparam object and use its name 1596 * for param lookup. 1597 */ 1598 if (rtn == 0) { 1599 name = isp->sess_name; 1600 params = &isp->sess_params; 1601 } else { 1602 name = 1603 iscsi_targetparam_get_name( 1604 ilg->g_oid); 1605 if (ilg->g_param_type == 1606 ISCSI_SESS_PARAM) { 1607 tmpParams = 1608 (iscsi_login_params_t *) 1609 kmem_alloc( 1610 sizeof (*tmpParams), 1611 KM_SLEEP); 1612 params = tmpParams; 1613 } 1614 rtn = 0; 1615 } 1616 1617 if (name == NULL) { 1618 rw_exit( 1619 &ihp->hba_sess_list_rwlock); 1620 rtn = EFAULT; 1621 kmem_free(ilg, sizeof (*ilg)); 1622 if (tmpParams != NULL) 1623 kmem_free(tmpParams, 1624 sizeof (*tmpParams)); 1625 1626 break; 1627 } 1628 1629 if (ilg->g_param_type == ISCSI_SESS_PARAM) { 1630 /* session */ 1631 /* 1632 * Update sess_params with the 1633 * latest params from the 1634 * persistent store. 1635 */ 1636 if (iscsi_get_persisted_param(name, 1637 ilg, params) != 0) { 1638 /* 1639 * If the parameter in 1640 * question is not 1641 * overriden, no effect 1642 * on existing session 1643 * parameters. However, 1644 * the parameter is 1645 * marked invalid 1646 * (from the standpoint 1647 * of whether it is 1648 * overriden). 1649 */ 1650 valid_flag = B_FALSE; 1651 } 1652 } else if (ilg->g_param_type == 1653 ISCSI_CONN_PARAM && isp != NULL) { 1654 /* connection */ 1655 rw_enter(&isp->sess_conn_list_rwlock, 1656 RW_READER); 1657 /* Assuming 1 conn per sess. */ 1658 /* 1659 * MC/S - Need to be modified to 1660 * take g_conn_cid into account when 1661 * we go multi-connection. 1662 */ 1663 if ((isp->sess_conn_act != NULL) && 1664 (isp->sess_conn_act->conn_state == 1665 ISCSI_CONN_STATE_LOGGED_IN)) { 1666 params = &(isp-> 1667 sess_conn_act-> 1668 conn_params); 1669 } else { 1670 valid_flag = B_FALSE; 1671 } 1672 rw_exit(&isp->sess_conn_list_rwlock); 1673 } 1674 } 1675 1676 /* make sure we have params to get info from */ 1677 if (params) { 1678 rtn = iscsi_get_param(params, valid_flag, ilg); 1679 1680 /* 1681 * for target parameters, check if any 1682 * parameters were overridden at the initiator 1683 * level. If so, then change the default value 1684 * to the initiator's overridden value 1685 */ 1686 if ((rtn == 0) && 1687 (ilg->g_oid != ihp->hba_oid)) { 1688 iscsi_override_target_default(ihp, 1689 ilg); 1690 } 1691 } 1692 rw_exit(&ihp->hba_sess_list_rwlock); 1693 } 1694 1695 if (rtn == 0) { 1696 rtn = ddi_copyout(ilg, (caddr_t)arg, 1697 sizeof (iscsi_param_get_t), mode); 1698 } 1699 kmem_free(ilg, sizeof (*ilg)); 1700 if (tmpParams != NULL) 1701 kmem_free(tmpParams, sizeof (*tmpParams)); 1702 break; 1703 1704 /* 1705 * ISCSI_INIT_NODE_NAME_SET - Change the initiator-node name for 1706 * the specified connection/session. 1707 */ 1708 case ISCSI_INIT_NODE_NAME_SET: 1709 /* copyin user args */ 1710 ils = (iscsi_param_set_t *)kmem_alloc(sizeof (*ils), KM_SLEEP); 1711 if (ddi_copyin((caddr_t)arg, ils, sizeof (*ils), mode)) { 1712 rtn = EFAULT; 1713 kmem_free(ils, sizeof (*ils)); 1714 break; 1715 } 1716 1717 if (ils->s_vers != ISCSI_INTERFACE_VERSION) { 1718 rtn = EINVAL; 1719 kmem_free(ils, sizeof (*ils)); 1720 break; 1721 } 1722 1723 /* saving off the old initiator-node name */ 1724 initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 1725 rval = persistent_initiator_name_get(initiator_node_name, 1726 ISCSI_MAX_NAME_LEN); 1727 1728 rtn = iscsi_set_params(ils, ihp, B_TRUE); 1729 kmem_free(ils, sizeof (*ils)); 1730 if (rtn != 0) { 1731 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 1732 break; 1733 } 1734 1735 (void) snprintf(init_port_name, MAX_NAME_PROP_SIZE, 1736 "%s,%02x%02x%02x%02x%02x%02x", 1737 (char *)ihp->hba_name, ihp->hba_isid[0], 1738 ihp->hba_isid[1], ihp->hba_isid[2], 1739 ihp->hba_isid[3], ihp->hba_isid[4], 1740 ihp->hba_isid[5]); 1741 1742 if (ddi_prop_update_string(DDI_DEV_T_NONE, 1743 ihp->hba_dip, "initiator-port", 1744 init_port_name) != DDI_PROP_SUCCESS) { 1745 cmn_err(CE_WARN, "iscsi_ioctl: Updating " 1746 "initiator-port property on iSCSI " 1747 "HBA(%s) with dip(%d) Failed", 1748 (char *)ihp->hba_name, 1749 ddi_get_instance(ihp->hba_dip)); 1750 } 1751 1752 /* 1753 * Deregister the old initiator-node name from the iSNS 1754 * server 1755 * Register the new initiator-node name with the iSNS server 1756 */ 1757 method = persistent_disc_meth_get(); 1758 if (method & iSCSIDiscoveryMethodISNS) { 1759 if (rval == B_TRUE) { 1760 if (strlen(initiator_node_name) > 0) { 1761 /* 1762 * we will attempt to offline the targets. 1763 * if logouts fail, we will still continue 1764 */ 1765 #define STRING_INNO "initiator-node name - Offline " 1766 #define STRING_FFOMD "failed for one or more devices" 1767 if ((iscsid_del( 1768 ihp, NULL, method, NULL)) 1769 != B_TRUE) { 1770 cmn_err(CE_NOTE, 1771 "Attempting to change " 1772 STRING_INNO 1773 STRING_FFOMD); 1774 } 1775 (void) isns_dereg(ihp->hba_isid, 1776 (uint8_t *)initiator_node_name); 1777 #undef STRING_INNO 1778 #undef STRING_FFOMD 1779 } 1780 } 1781 if (persistent_initiator_name_get(initiator_node_name, 1782 ISCSI_MAX_NAME_LEN) != B_TRUE) { 1783 kmem_free(initiator_node_name, 1784 ISCSI_MAX_NAME_LEN); 1785 initiator_node_name = NULL; 1786 rtn = EIO; 1787 break; 1788 } 1789 if (strlen(initiator_node_name) == 0) { 1790 kmem_free(initiator_node_name, 1791 ISCSI_MAX_NAME_LEN); 1792 initiator_node_name = NULL; 1793 rtn = EIO; 1794 break; 1795 } 1796 1797 initiator_node_alias = kmem_zalloc(ISCSI_MAX_NAME_LEN, 1798 KM_SLEEP); 1799 if (persistent_alias_name_get(initiator_node_alias, 1800 ISCSI_MAX_NAME_LEN) != B_TRUE) { 1801 initiator_node_alias[0] = '\0'; 1802 } 1803 1804 (void) isns_reg(ihp->hba_isid, 1805 (uint8_t *)initiator_node_name, 1806 ISCSI_MAX_NAME_LEN, 1807 (uint8_t *)initiator_node_alias, 1808 ISCSI_MAX_NAME_LEN, 1809 ISNS_INITIATOR_NODE_TYPE, 1810 isns_scn_callback); 1811 iscsid_do_isns_query(ihp); 1812 1813 /* Done using the name and alias - free them. */ 1814 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 1815 initiator_node_name = NULL; 1816 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 1817 initiator_node_alias = NULL; 1818 } 1819 break; 1820 1821 /* 1822 * ISCSI_PARAM_SET - Set param for specified connection/session. 1823 */ 1824 case ISCSI_PARAM_SET: 1825 /* copyin user args */ 1826 ils = (iscsi_param_set_t *)kmem_alloc(sizeof (*ils), KM_SLEEP); 1827 if (ddi_copyin((caddr_t)arg, ils, sizeof (*ils), mode)) { 1828 rtn = EFAULT; 1829 kmem_free(ils, sizeof (*ils)); 1830 break; 1831 } 1832 1833 if (ils->s_vers != ISCSI_INTERFACE_VERSION) { 1834 rtn = EINVAL; 1835 kmem_free(ils, sizeof (*ils)); 1836 break; 1837 } 1838 rtn = iscsi_set_params(ils, ihp, B_TRUE); 1839 if (iscsiboot_prop) { 1840 if (iscsi_cmp_boot_sess_oid(ihp, ils->s_oid)) { 1841 /* 1842 * found active session for this object 1843 * or this is initiator's object 1844 * with mpxio enabled 1845 */ 1846 if (!iscsi_reconfig_boot_sess(ihp)) { 1847 rtn = EINVAL; 1848 kmem_free(ils, sizeof (*ils)); 1849 break; 1850 } 1851 } 1852 } 1853 kmem_free(ils, sizeof (*ils)); 1854 break; 1855 1856 /* 1857 * ISCSI_TARGET_PARAM_CLEAR 1858 * - remove custom parameter settings for a target. 1859 */ 1860 case ISCSI_TARGET_PARAM_CLEAR: 1861 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 1862 rtn = EFAULT; 1863 break; 1864 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 1865 rtn = EINVAL; 1866 break; 1867 } 1868 1869 if ((e.e_oid != ihp->hba_oid) && 1870 (e.e_oid != ISCSI_OID_NOTSET)) { 1871 uchar_t *t_name; 1872 iscsi_sess_t *t_isp; 1873 1874 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 1875 /* 1876 * If the oid does represent a session check to see 1877 * if it is a target oid. If so, return the target's 1878 * associated session. 1879 */ 1880 rtn = iscsi_sess_get(e.e_oid, ihp, &isp); 1881 if (rtn != 0) { 1882 rtn = iscsi_sess_get_by_target(e.e_oid, ihp, 1883 &isp); 1884 } 1885 1886 /* 1887 * If rtn is zero then we have found an 1888 * existing session. Use the session name to 1889 * do param lookup. If rtn is non-zero then 1890 * create a targetparam object and use its name 1891 * for param lookup. 1892 */ 1893 if (rtn == 0) { 1894 t_name = isp->sess_name; 1895 } else { 1896 t_name = iscsi_targetparam_get_name(e.e_oid); 1897 rtn = 0; 1898 } 1899 1900 if (t_name == NULL) { 1901 rw_exit(&ihp->hba_sess_list_rwlock); 1902 rtn = EFAULT; 1903 break; 1904 } 1905 1906 name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 1907 (void) strncpy((char *)name, (char *)t_name, 1908 ISCSI_MAX_NAME_LEN); 1909 1910 if (persistent_param_clear((char *)name) == B_FALSE) { 1911 kmem_free(name, ISCSI_MAX_NAME_LEN); 1912 rw_exit(&ihp->hba_sess_list_rwlock); 1913 rtn = EIO; 1914 break; 1915 } 1916 1917 ics = kmem_zalloc(sizeof (*ics), KM_SLEEP); 1918 ics->ics_ver = ISCSI_INTERFACE_VERSION; 1919 ics->ics_oid = ISCSI_INITIATOR_OID; 1920 ics->ics_in = 1; 1921 1922 /* 1923 * We may have multiple sessions with different 1924 * tpgt values. So we need to loop through 1925 * the sessions and update all sessions. 1926 */ 1927 for (isp = ihp->hba_sess_list; isp; 1928 isp = t_isp) { 1929 t_isp = isp->sess_next; 1930 1931 if (strncmp((char *)isp->sess_name, 1932 (char *)name, ISCSI_MAX_NAME_LEN) == 0) { 1933 /* 1934 * When removing target-params we need 1935 * slightly different actions depending 1936 * on if the session should still exist. 1937 * Get the initiator-node value for 1938 * MS/T. If there is no initiator 1939 * value then assume the default value 1940 * of 1. If the initiator value is 1941 * less than this ISID then we need to 1942 * destroy the session. Otherwise 1943 * update the session information and 1944 * resync (N7 event). 1945 */ 1946 rtn = iscsi_ioctl_get_config_sess( 1947 ihp, ics); 1948 if (((rtn != 0) && 1949 (isp->sess_isid[5] > 0)) || 1950 ((rtn == 0) && 1951 (ics->ics_out <= 1952 isp->sess_isid[5]))) { 1953 1954 /* 1955 * This session should no 1956 * longer exist. Remove 1957 * session. 1958 */ 1959 if (!ISCSI_SUCCESS( 1960 iscsi_sess_destroy(isp))) { 1961 kmem_free(ics, 1962 sizeof (*ics)); 1963 kmem_free(name, 1964 ISCSI_MAX_NAME_LEN); 1965 rw_exit(&ihp-> 1966 hba_sess_list_rwlock); 1967 rtn = EBUSY; 1968 break; 1969 } 1970 isp = ihp->hba_sess_list; 1971 } else { 1972 /* 1973 * Reset the session 1974 * parameters. 1975 */ 1976 bcopy(&(isp->sess_hba-> 1977 hba_params), 1978 &(isp->sess_params), 1979 sizeof (isp->sess_params)); 1980 if (iscsiboot_prop && 1981 isp->sess_boot) { 1982 /* 1983 * reconfig boot 1984 * session later 1985 */ 1986 continue; 1987 } 1988 /* 1989 * Notify the session that the 1990 * login parameters have 1991 * changed. 1992 */ 1993 mutex_enter(&isp-> 1994 sess_state_mutex); 1995 iscsi_sess_state_machine(isp, 1996 ISCSI_SESS_EVENT_N7); 1997 mutex_exit(&isp-> 1998 sess_state_mutex); 1999 } 2000 } 2001 } 2002 kmem_free(ics, sizeof (*ics)); 2003 kmem_free(name, ISCSI_MAX_NAME_LEN); 2004 rw_exit(&ihp->hba_sess_list_rwlock); 2005 if (iscsiboot_prop) { 2006 if (iscsi_cmp_boot_sess_oid(ihp, e.e_oid)) { 2007 /* 2008 * found active session for this object 2009 * or this is initiator object 2010 * with mpxio enabled 2011 */ 2012 if (!iscsi_reconfig_boot_sess(ihp)) { 2013 rtn = EINVAL; 2014 break; 2015 } 2016 } 2017 } 2018 } 2019 break; 2020 2021 /* 2022 * ISCSI_TARGET_OID_LIST_GET - 2023 */ 2024 case ISCSI_TARGET_OID_LIST_GET: 2025 /* copyin user args */ 2026 if (ddi_copyin((caddr_t)arg, &idl, 2027 sizeof (idl), mode)) { 2028 rtn = EFAULT; 2029 break; 2030 } 2031 2032 if (idl.tl_vers != ISCSI_INTERFACE_VERSION) { 2033 rtn = EINVAL; 2034 break; 2035 } 2036 2037 list_space = sizeof (iscsi_target_list_t); 2038 if (idl.tl_in_cnt != 0) 2039 list_space += (sizeof (uint32_t) * 2040 (idl.tl_in_cnt - 1)); 2041 2042 idlp = kmem_zalloc(list_space, KM_SLEEP); 2043 bcopy(&idl, idlp, sizeof (idl)); 2044 idlp->tl_out_cnt = 0; 2045 2046 /* 2047 * If target list type is ISCSI_TGT_OID_LIST and discovery 2048 * has not been completed or in progress, poke the discovery 2049 * methods so target information is returned 2050 */ 2051 mutex_enter(&ihp->hba_discovery_events_mutex); 2052 method = ihp->hba_discovery_events; 2053 if ((idl.tl_tgt_list_type == ISCSI_TGT_OID_LIST) && 2054 (method != ISCSI_ALL_DISCOVERY_METHODS) && 2055 (ihp->hba_discovery_in_progress == B_FALSE)) { 2056 ihp->hba_discovery_in_progress = B_TRUE; 2057 mutex_exit(&ihp->hba_discovery_events_mutex); 2058 iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodUnknown); 2059 mutex_enter(&ihp->hba_discovery_events_mutex); 2060 ihp->hba_discovery_in_progress = B_FALSE; 2061 } 2062 mutex_exit(&ihp->hba_discovery_events_mutex); 2063 2064 /* 2065 * Return the correct list information based on the type 2066 */ 2067 switch (idl.tl_tgt_list_type) { 2068 /* ISCSI_TGT_PARAM_OID_LIST - iscsiadm list target-params */ 2069 case ISCSI_TGT_PARAM_OID_LIST: 2070 /* get params from persistent store */ 2071 iscsi_targetparam_lock_list(RW_READER); 2072 curr_entry = iscsi_targetparam_get_next_entry(NULL); 2073 while (curr_entry != NULL) { 2074 if (idlp->tl_out_cnt < idlp->tl_in_cnt) { 2075 idlp->tl_oid_list[idlp->tl_out_cnt] = 2076 curr_entry->target_oid; 2077 } 2078 idlp->tl_out_cnt++; 2079 curr_entry = iscsi_targetparam_get_next_entry( 2080 curr_entry); 2081 } 2082 iscsi_targetparam_unlock_list(); 2083 break; 2084 2085 /* ISCSI_STATIC_TGT_OID_LIST - iscsiadm list static-config */ 2086 case ISCSI_STATIC_TGT_OID_LIST: 2087 { 2088 char *target_name = NULL; 2089 void *v = NULL; 2090 2091 /* get static-config from persistent store */ 2092 target_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 2093 persistent_static_addr_lock(); 2094 while (persistent_static_addr_next(&v, 2095 (char *)target_name, &e) == B_TRUE) { 2096 2097 if (idlp->tl_out_cnt < idlp->tl_in_cnt) { 2098 idlp->tl_oid_list[idlp->tl_out_cnt] = 2099 e.e_oid; 2100 } 2101 idlp->tl_out_cnt++; 2102 2103 } 2104 2105 persistent_static_addr_unlock(); 2106 kmem_free(target_name, ISCSI_MAX_NAME_LEN); 2107 break; 2108 } 2109 2110 /* ISCSI_TGT_OID_LIST - iscsiadm list target */ 2111 case ISCSI_TGT_OID_LIST: 2112 2113 /* get sessions from hba's session list */ 2114 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2115 for (isp = ihp->hba_sess_list; isp; 2116 isp = isp->sess_next) { 2117 2118 if (((isp->sess_state != 2119 ISCSI_SESS_STATE_FREE) || 2120 (isp->sess_discovered_by != 2121 iSCSIDiscoveryMethodUnknown)) && 2122 (isp->sess_type == 2123 ISCSI_SESS_TYPE_NORMAL)) { 2124 if (idlp->tl_out_cnt < 2125 idlp->tl_in_cnt) { 2126 idlp->tl_oid_list[ 2127 idlp->tl_out_cnt] = 2128 isp->sess_oid; 2129 } 2130 idlp->tl_out_cnt++; 2131 } 2132 2133 } 2134 rw_exit(&ihp->hba_sess_list_rwlock); 2135 break; 2136 2137 default: 2138 ASSERT(FALSE); 2139 } 2140 2141 rtn = ddi_copyout(idlp, (caddr_t)arg, list_space, mode); 2142 kmem_free(idlp, list_space); 2143 break; 2144 2145 /* 2146 * ISCSI_TARGET_PROPS_GET - 2147 */ 2148 case ISCSI_TARGET_PROPS_GET: 2149 /* ---- fall through sense the code is almost the same ---- */ 2150 2151 /* 2152 * ISCSI_TARGET_PROPS_SET - 2153 */ 2154 case ISCSI_TARGET_PROPS_SET: 2155 /* copyin user args */ 2156 ipp = (iscsi_property_t *)kmem_alloc(sizeof (*ipp), 2157 KM_SLEEP); 2158 if (ddi_copyin((caddr_t)arg, ipp, sizeof (*ipp), mode)) { 2159 rtn = EFAULT; 2160 kmem_free(ipp, sizeof (*ipp)); 2161 break; 2162 } 2163 2164 if (ipp->p_vers != ISCSI_INTERFACE_VERSION) { 2165 rtn = EINVAL; 2166 kmem_free(ipp, sizeof (*ipp)); 2167 break; 2168 } 2169 2170 rtn = iscsi_target_prop_mod(ihp, ipp, cmd); 2171 if (rtn == 0) 2172 rtn = ddi_copyout(ipp, (caddr_t)arg, 2173 sizeof (*ipp), mode); 2174 kmem_free(ipp, sizeof (*ipp)); 2175 break; 2176 2177 /* 2178 * ISCSI_TARGET_ADDRESS_GET - 2179 */ 2180 case ISCSI_TARGET_ADDRESS_GET: 2181 if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { 2182 rtn = EFAULT; 2183 break; 2184 } 2185 2186 if (ial.al_vers != ISCSI_INTERFACE_VERSION) { 2187 rtn = EINVAL; 2188 break; 2189 } 2190 2191 /* 2192 * Find out how much space we need to malloc for the users 2193 * request. 2194 */ 2195 list_space = sizeof (iscsi_addr_list_t); 2196 if (ial.al_in_cnt != 0) { 2197 list_space += (sizeof (iscsi_addr_t) * 2198 (ial.al_in_cnt - 1)); 2199 } 2200 ialp = (iscsi_addr_list_t *)kmem_zalloc(list_space, KM_SLEEP); 2201 2202 /* Copy in the header portion */ 2203 bcopy(&ial, ialp, sizeof (ial)); 2204 2205 /* session */ 2206 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2207 rtn = iscsi_sess_get(ialp->al_oid, ihp, &isp); 2208 if (rtn != 0) { 2209 rw_exit(&ihp->hba_sess_list_rwlock); 2210 rtn = EFAULT; 2211 break; 2212 } 2213 2214 ialp->al_out_cnt = 0; 2215 ialp->al_tpgt = isp->sess_tpgt_conf; 2216 rw_enter(&isp->sess_conn_list_rwlock, RW_READER); 2217 for (icp = isp->sess_conn_list; icp; icp = icp->conn_next) { 2218 if (icp->conn_state != ISCSI_CONN_STATE_LOGGED_IN) { 2219 continue; 2220 } 2221 if (ialp->al_out_cnt < ialp->al_in_cnt) { 2222 iscsi_addr_t *ap; 2223 2224 ap = &ialp->al_addrs[ialp->al_out_cnt]; 2225 if (icp->conn_base_addr.sin.sa_family 2226 == AF_INET) { 2227 2228 struct sockaddr_in *addr_in = 2229 (struct sockaddr_in *)&icp-> 2230 conn_base_addr.sin4; 2231 ap->a_addr.i_insize = 2232 sizeof (struct in_addr); 2233 bcopy(&addr_in->sin_addr.s_addr, 2234 &ap->a_addr.i_addr.in4.s_addr, 2235 sizeof (struct in_addr)); 2236 ap->a_port = addr_in->sin_port; 2237 2238 } else { 2239 2240 struct sockaddr_in6 *addr_in6 = 2241 (struct sockaddr_in6 *)&icp-> 2242 conn_base_addr.sin6; 2243 ap->a_addr.i_insize = 2244 sizeof (struct in6_addr); 2245 bcopy(&addr_in6->sin6_addr.s6_addr, 2246 &ap->a_addr.i_addr.in6.s6_addr, 2247 sizeof (struct in6_addr)); 2248 ap->a_port = addr_in6->sin6_port; 2249 2250 } 2251 } 2252 ialp->al_out_cnt++; 2253 } 2254 rw_exit(&isp->sess_conn_list_rwlock); 2255 rw_exit(&ihp->hba_sess_list_rwlock); 2256 2257 rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); 2258 kmem_free(ialp, list_space); 2259 break; 2260 2261 /* 2262 * ISCSI_CHAP_SET - 2263 */ 2264 case ISCSI_CHAP_SET: 2265 chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), 2266 KM_SLEEP); 2267 if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { 2268 rtn = EFAULT; 2269 kmem_free(chap, sizeof (*chap)); 2270 break; 2271 } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { 2272 rtn = EINVAL; 2273 kmem_free(chap, sizeof (*chap)); 2274 break; 2275 } 2276 2277 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2278 if (chap->c_oid == ihp->hba_oid) 2279 name = ihp->hba_name; 2280 else { 2281 rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); 2282 if (rtn != 0) { 2283 rtn = iscsi_sess_get_by_target( 2284 chap->c_oid, ihp, &isp); 2285 } 2286 2287 /* 2288 * If rtn is zero then we have found an 2289 * existing session. Use the session name to 2290 * do param lookup. If rtn is non-zero then 2291 * create a targetparam object and use its name 2292 * for param lookup. 2293 */ 2294 if (rtn == 0) { 2295 name = isp->sess_name; 2296 } else { 2297 name = 2298 iscsi_targetparam_get_name(chap->c_oid); 2299 rtn = 0; 2300 } 2301 } 2302 2303 if (name == NULL) { 2304 rw_exit( 2305 &ihp->hba_sess_list_rwlock); 2306 rtn = EFAULT; 2307 kmem_free(chap, sizeof (*chap)); 2308 break; 2309 } 2310 2311 if (persistent_chap_set((char *)name, chap) == 2312 B_FALSE) { 2313 rtn = EIO; 2314 } 2315 rw_exit(&ihp->hba_sess_list_rwlock); 2316 kmem_free(chap, sizeof (*chap)); 2317 break; 2318 2319 /* 2320 * ISCSI_CHAP_GET - 2321 */ 2322 case ISCSI_CHAP_GET: 2323 chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), 2324 KM_SLEEP); 2325 if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { 2326 kmem_free(chap, sizeof (*chap)); 2327 rtn = EFAULT; 2328 break; 2329 } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { 2330 kmem_free(chap, sizeof (*chap)); 2331 rtn = EINVAL; 2332 break; 2333 } 2334 2335 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2336 if (chap->c_oid == ihp->hba_oid) 2337 name = ihp->hba_name; 2338 else { 2339 rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); 2340 if (rtn != 0) { 2341 rtn = iscsi_sess_get_by_target( 2342 chap->c_oid, ihp, &isp); 2343 } 2344 2345 /* 2346 * If rtn is zero then we have found an 2347 * existing session. Use the session name to 2348 * do param lookup. If rtn is non-zero then 2349 * create a targetparam object and use its name 2350 * for param lookup. 2351 */ 2352 if (rtn == 0) { 2353 name = isp->sess_name; 2354 } else { 2355 rtn = 0; 2356 name = 2357 iscsi_targetparam_get_name(chap->c_oid); 2358 } 2359 2360 if (name == NULL) { 2361 rw_exit(&ihp->hba_sess_list_rwlock); 2362 rtn = EFAULT; 2363 break; 2364 } 2365 /* 2366 * Initialize the target-side chap name to the 2367 * session name if no chap settings have been 2368 * saved for the current session. 2369 */ 2370 if (persistent_chap_get((char *)name, 2371 chap) == B_FALSE) { 2372 int name_len = strlen((char *)name); 2373 iscsi_chap_props_t *chap = NULL; 2374 chap = (iscsi_chap_props_t *)kmem_zalloc 2375 (sizeof (iscsi_chap_props_t), KM_SLEEP); 2376 bcopy((char *)name, chap->c_user, name_len); 2377 chap->c_user_len = name_len; 2378 (void) (persistent_chap_set((char *)name, 2379 chap)); 2380 kmem_free(chap, sizeof (*chap)); 2381 } 2382 } 2383 2384 if (name == NULL) { 2385 rw_exit( 2386 &ihp->hba_sess_list_rwlock); 2387 rtn = EFAULT; 2388 break; 2389 } 2390 2391 if (persistent_chap_get((char *)name, chap) == B_FALSE) { 2392 rw_exit(&ihp->hba_sess_list_rwlock); 2393 rtn = EIO; 2394 break; 2395 } 2396 rw_exit(&ihp->hba_sess_list_rwlock); 2397 2398 rtn = ddi_copyout(chap, (caddr_t)arg, sizeof (*chap), mode); 2399 kmem_free(chap, sizeof (*chap)); 2400 break; 2401 2402 /* 2403 * ISCSI_CHAP_CLEAR - 2404 */ 2405 case ISCSI_CHAP_CLEAR: 2406 chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), 2407 KM_SLEEP); 2408 if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { 2409 rtn = EFAULT; 2410 kmem_free(chap, sizeof (*chap)); 2411 break; 2412 } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { 2413 rtn = EINVAL; 2414 kmem_free(chap, sizeof (*chap)); 2415 break; 2416 } 2417 2418 if (chap->c_oid == ihp->hba_oid) { 2419 iscsi_sess_t *sessp; 2420 2421 name = ihp->hba_name; 2422 2423 if (persistent_chap_clear( 2424 (char *)name) == B_FALSE) { 2425 rtn = EIO; 2426 } 2427 2428 /* 2429 * Loop through all sessions and memset their 2430 * (initiator's) passwords 2431 */ 2432 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2433 for (sessp = ihp->hba_sess_list; sessp; 2434 sessp = sessp->sess_next) { 2435 (void) memset(sessp->sess_auth.password, 2436 0, iscsiAuthStringMaxLength); 2437 sessp->sess_auth.password_length = 0; 2438 } 2439 rw_exit(&ihp->hba_sess_list_rwlock); 2440 2441 } else { 2442 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2443 /* 2444 * If the oid does represent a session check to see 2445 * if it is a target oid. If so, return the target's 2446 * associated session. 2447 */ 2448 rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); 2449 if (rtn != 0) { 2450 rtn = iscsi_sess_get_by_target(chap->c_oid, 2451 ihp, &isp); 2452 } 2453 2454 rw_exit(&ihp->hba_sess_list_rwlock); 2455 2456 /* 2457 * If rtn is zero then we have found an 2458 * existing session. Use the session name to 2459 * do param lookup. If rtn is non-zero then 2460 * create a targetparam object and use its name 2461 * for param lookup. 2462 */ 2463 if (rtn == 0) { 2464 name = isp->sess_name; 2465 } else { 2466 name = 2467 iscsi_targetparam_get_name(chap->c_oid); 2468 rtn = 0; 2469 } 2470 2471 if (name == NULL) { 2472 rw_exit( 2473 &ihp->hba_sess_list_rwlock); 2474 rtn = EFAULT; 2475 break; 2476 } 2477 2478 if (persistent_chap_clear( 2479 (char *)name) == B_FALSE) { 2480 rtn = EIO; 2481 } 2482 2483 /* 2484 * Clear out session chap password if we found a 2485 * session above. 2486 */ 2487 if (isp != NULL) { 2488 (void) memset(isp->sess_auth.password_in, 2489 0, iscsiAuthStringMaxLength); 2490 isp->sess_auth.password_length_in = 0; 2491 } 2492 2493 } 2494 2495 kmem_free(chap, sizeof (*chap)); 2496 break; 2497 2498 /* 2499 * ISCSI_STATIC_GET - 2500 */ 2501 case ISCSI_STATIC_GET: 2502 ispp = (iscsi_static_property_t *)kmem_alloc( 2503 sizeof (*ispp), KM_SLEEP); 2504 2505 if (ddi_copyin((caddr_t)arg, ispp, sizeof (*ispp), mode)) { 2506 rtn = EFAULT; 2507 kmem_free(ispp, sizeof (*ispp)); 2508 break; 2509 } 2510 2511 if (ispp->p_vers != ISCSI_INTERFACE_VERSION) { 2512 rtn = EINVAL; 2513 kmem_free(ispp, sizeof (*ispp)); 2514 break; 2515 } 2516 2517 { 2518 void *v = NULL; 2519 boolean_t found = B_FALSE; 2520 2521 persistent_static_addr_lock(); 2522 while (persistent_static_addr_next(&v, 2523 (char *)ispp->p_name, &e) == B_TRUE) { 2524 2525 if (ispp->p_oid == e.e_oid) { 2526 /* 2527 * In case there are multiple 2528 * addresses associated with the 2529 * given target OID, pick the first 2530 * one. 2531 */ 2532 iscsi_addr_t *ap; 2533 2534 ap = &(ispp->p_addr_list.al_addrs[0]); 2535 ap->a_port = e.e_port; 2536 ap->a_addr.i_insize = e.e_insize; 2537 bcopy(e.e_u.u_in6.s6_addr, 2538 ap->a_addr.i_addr.in6.s6_addr, 2539 e.e_insize); 2540 ispp->p_name_len = 2541 strlen((char *)ispp->p_name); 2542 ispp->p_addr_list.al_tpgt = e.e_tpgt; 2543 ispp->p_addr_list.al_out_cnt = 1; 2544 2545 found = B_TRUE; 2546 break; 2547 } 2548 } 2549 persistent_static_addr_unlock(); 2550 2551 if (found == B_TRUE) { 2552 rtn = ddi_copyout(ispp, (caddr_t)arg, 2553 sizeof (*ispp), mode); 2554 } else { 2555 rtn = ENOENT; 2556 } 2557 } 2558 kmem_free(ispp, sizeof (*ispp)); 2559 2560 break; 2561 2562 /* 2563 * ISCSI_STATIC_SET - 2564 */ 2565 case ISCSI_STATIC_SET: 2566 target = iscsi_ioctl_copyin((caddr_t)arg, mode, 2567 sizeof (*target)); 2568 if (target == NULL) { 2569 rtn = EFAULT; 2570 break; 2571 } 2572 2573 if (target->te_entry.e_vers != ISCSI_INTERFACE_VERSION) { 2574 kmem_free(target, sizeof (*target)); 2575 rtn = EINVAL; 2576 break; 2577 } 2578 2579 /* Check if the target's already been added */ 2580 { 2581 boolean_t static_target_found = B_FALSE; 2582 void *v = NULL; 2583 2584 name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 2585 persistent_static_addr_lock(); 2586 while (persistent_static_addr_next(&v, (char *)name, 2587 &e) == B_TRUE) { 2588 /* 2589 * MC/S - Need to check IP address and port 2590 * number as well when we support MC/S. 2591 */ 2592 if ((strncmp((char *)name, 2593 (char *)target->te_name, 2594 ISCSI_MAX_NAME_LEN) == 0) && 2595 (target->te_entry.e_tpgt == e.e_tpgt) && 2596 (target->te_entry.e_insize == e.e_insize) && 2597 (bcmp(&target->te_entry.e_u, &e.e_u, 2598 e.e_insize) == 0)) { 2599 /* 2600 * We don't allow MC/S for now but 2601 * we do allow adding the same target 2602 * with different TPGTs (hence, 2603 * different sessions). 2604 */ 2605 static_target_found = B_TRUE; 2606 break; 2607 } 2608 } 2609 persistent_static_addr_unlock(); 2610 kmem_free(name, ISCSI_MAX_NAME_LEN); 2611 2612 if (static_target_found == B_TRUE) { 2613 /* Duplicate entry */ 2614 kmem_free(target, sizeof (*target)); 2615 rtn = EEXIST; 2616 break; 2617 } 2618 } 2619 2620 if (target->te_entry.e_oid == ISCSI_OID_NOTSET) { 2621 mutex_enter(&iscsi_oid_mutex); 2622 target->te_entry.e_oid = iscsi_oid++; 2623 mutex_exit(&iscsi_oid_mutex); 2624 } 2625 2626 persistent_static_addr_lock(); 2627 if (persistent_static_addr_set((char *)target->te_name, 2628 &target->te_entry) == B_FALSE) { 2629 persistent_static_addr_unlock(); 2630 kmem_free(target, sizeof (*target)); 2631 rtn = EIO; 2632 break; 2633 } 2634 persistent_static_addr_unlock(); 2635 2636 /* 2637 * If Static Targets discovery is enabled, then add 2638 * target to discovery queue. Otherwise, just create 2639 * the session for potential future use. 2640 */ 2641 method = persistent_disc_meth_get(); 2642 if (method & iSCSIDiscoveryMethodStatic) { 2643 iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodStatic); 2644 (void) iscsid_login_tgt(ihp, (char *)target->te_name, 2645 iSCSIDiscoveryMethodStatic, NULL); 2646 } 2647 2648 rtn = iscsi_ioctl_copyout(target, sizeof (*target), 2649 (caddr_t)arg, mode); 2650 break; 2651 2652 /* 2653 * ISCSI_STATIC_CLEAR - 2654 */ 2655 case ISCSI_STATIC_CLEAR: 2656 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2657 rtn = EFAULT; 2658 break; 2659 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2660 rtn = EINVAL; 2661 break; 2662 } 2663 2664 { 2665 boolean_t found = B_FALSE; 2666 void *v = NULL; 2667 entry_t tmp_e; 2668 char *name = NULL; 2669 2670 name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 2671 2672 /* Find name for matching static_tgt oid */ 2673 persistent_static_addr_lock(); 2674 while (persistent_static_addr_next(&v, 2675 (char *)name, &tmp_e) == B_TRUE) { 2676 if (e.e_oid == tmp_e.e_oid) { 2677 found = B_TRUE; 2678 break; 2679 } 2680 } 2681 2682 /* If static_tgt found logout and remove it */ 2683 if (found == B_TRUE) { 2684 2685 iscsid_addr_to_sockaddr(tmp_e.e_insize, 2686 &tmp_e.e_u, tmp_e.e_port, &addr_dsc.sin); 2687 2688 /* Attempt to logout of target */ 2689 if (iscsid_del(ihp, (char *)name, 2690 iSCSIDiscoveryMethodStatic, &addr_dsc.sin) 2691 == B_TRUE) { 2692 persistent_static_addr_unlock(); 2693 2694 /* remove from persistent store */ 2695 if (persistent_static_addr_clear( 2696 e.e_oid) == B_FALSE) { 2697 rtn = EIO; 2698 } 2699 2700 iscsid_poke_discovery(ihp, 2701 iSCSIDiscoveryMethodStatic); 2702 (void) iscsid_login_tgt(ihp, 2703 (char *)name, 2704 iSCSIDiscoveryMethodStatic, 2705 NULL); 2706 2707 } else { 2708 persistent_static_addr_unlock(); 2709 rtn = EBUSY; 2710 } 2711 } else { 2712 persistent_static_addr_unlock(); 2713 rtn = EIO; 2714 } 2715 kmem_free(name, ISCSI_MAX_NAME_LEN); 2716 } 2717 break; 2718 2719 /* 2720 * ISCSI_ISNS_SERVER_ADDR_SET: 2721 */ 2722 case ISCSI_ISNS_SERVER_ADDR_SET: 2723 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2724 rtn = EFAULT; 2725 break; 2726 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2727 rtn = EINVAL; 2728 break; 2729 } 2730 2731 if (persistent_isns_addr_set(&e) == B_FALSE) { 2732 rtn = EIO; 2733 break; 2734 } 2735 2736 /* 2737 * If iSNS server discovery is enabled, then kickoff 2738 * discovery of the targets advertised by the recently 2739 * added iSNS server address. 2740 */ 2741 method = persistent_disc_meth_get(); 2742 if (method & iSCSIDiscoveryMethodISNS) { 2743 initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, 2744 KM_SLEEP); 2745 if (persistent_initiator_name_get(initiator_node_name, 2746 ISCSI_MAX_NAME_LEN) != B_TRUE) { 2747 kmem_free(initiator_node_name, 2748 ISCSI_MAX_NAME_LEN); 2749 initiator_node_name = NULL; 2750 rtn = EIO; 2751 break; 2752 } 2753 if (strlen(initiator_node_name) == 0) { 2754 kmem_free(initiator_node_name, 2755 ISCSI_MAX_NAME_LEN); 2756 initiator_node_name = NULL; 2757 rtn = EIO; 2758 break; 2759 } 2760 2761 initiator_node_alias = kmem_zalloc(ISCSI_MAX_NAME_LEN, 2762 KM_SLEEP); 2763 if (persistent_alias_name_get(initiator_node_alias, 2764 ISCSI_MAX_NAME_LEN) != B_TRUE) { 2765 initiator_node_alias[0] = '\0'; 2766 } 2767 2768 /* 2769 * Register this initiator node against this iSNS 2770 * server. 2771 */ 2772 (void) isns_reg_one_server(&e, ihp->hba_isid, 2773 (uint8_t *)initiator_node_name, 2774 ISCSI_MAX_NAME_LEN, 2775 (uint8_t *)initiator_node_alias, 2776 ISCSI_MAX_NAME_LEN, 2777 ISNS_INITIATOR_NODE_TYPE, 2778 isns_scn_callback); 2779 2780 iscsid_do_isns_query_one_server(ihp, &e); 2781 2782 iscsid_addr_to_sockaddr(e.e_insize, 2783 &e.e_u, e.e_port, &addr_dsc.sin); 2784 2785 (void) iscsid_login_tgt(ihp, NULL, 2786 iSCSIDiscoveryMethodISNS, 2787 &addr_dsc.sin); 2788 2789 /* Done using the name and alias - free them. */ 2790 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 2791 initiator_node_name = NULL; 2792 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 2793 initiator_node_alias = NULL; 2794 } 2795 break; 2796 2797 /* 2798 * ISCSI_DISCOVERY_ADDR_SET: 2799 */ 2800 case ISCSI_DISCOVERY_ADDR_SET: 2801 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2802 rtn = EFAULT; 2803 break; 2804 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2805 rtn = EINVAL; 2806 break; 2807 } 2808 2809 if (e.e_oid == ISCSI_OID_NOTSET) { 2810 mutex_enter(&iscsi_oid_mutex); 2811 e.e_oid = iscsi_oid++; 2812 mutex_exit(&iscsi_oid_mutex); 2813 } 2814 2815 if (persistent_disc_addr_set(&e) == B_FALSE) { 2816 rtn = EIO; 2817 break; 2818 } 2819 2820 /* 2821 * If Send Targets discovery is enabled, then kickoff 2822 * discovery of the targets advertised by the recently 2823 * added discovery address. 2824 */ 2825 method = persistent_disc_meth_get(); 2826 if (method & iSCSIDiscoveryMethodSendTargets) { 2827 2828 iscsid_addr_to_sockaddr(e.e_insize, 2829 &e.e_u, e.e_port, &addr_dsc.sin); 2830 iscsid_do_sendtgts(&e); 2831 (void) iscsid_login_tgt(ihp, NULL, 2832 iSCSIDiscoveryMethodSendTargets, 2833 &addr_dsc.sin); 2834 2835 } 2836 break; 2837 2838 /* 2839 * ISCSI_DISCOVERY_ADDR_LIST_GET 2840 */ 2841 case ISCSI_DISCOVERY_ADDR_LIST_GET: 2842 /* copyin user args */ 2843 if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { 2844 rtn = EFAULT; 2845 break; 2846 } 2847 2848 if (ial.al_vers != ISCSI_INTERFACE_VERSION) { 2849 rtn = EINVAL; 2850 break; 2851 } 2852 2853 list_space = sizeof (iscsi_addr_list_t); 2854 if (ial.al_in_cnt != 0) { 2855 list_space += (sizeof (iscsi_addr_t) * 2856 (ial.al_in_cnt - 1)); 2857 } 2858 2859 ialp = kmem_zalloc(list_space, KM_SLEEP); 2860 bcopy(&ial, ialp, sizeof (iscsi_addr_list_t)); 2861 2862 void_p = NULL; 2863 ialp->al_out_cnt = 0; 2864 persistent_disc_addr_lock(); 2865 while (persistent_disc_addr_next(&void_p, &e) == B_TRUE) { 2866 if (ialp->al_out_cnt < ialp->al_in_cnt) { 2867 int i = ialp->al_out_cnt; 2868 iscsi_addr_t *addr = &ialp->al_addrs[i]; 2869 2870 addr->a_port = e.e_port; 2871 addr->a_addr.i_insize = e.e_insize; 2872 addr->a_oid = e.e_oid; 2873 2874 if (e.e_insize == sizeof (struct in_addr)) { 2875 /* IPv4 */ 2876 addr->a_addr.i_addr.in4.s_addr = 2877 e.e_u.u_in4.s_addr; 2878 } else if (e.e_insize == 2879 sizeof (struct in6_addr)) { 2880 /* IPv6 */ 2881 bcopy(e.e_u.u_in6.s6_addr, 2882 addr->a_addr.i_addr.in6.s6_addr, 2883 16); 2884 } 2885 } 2886 ialp->al_out_cnt++; 2887 } 2888 persistent_disc_addr_unlock(); 2889 2890 rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); 2891 kmem_free(ialp, list_space); 2892 break; 2893 2894 /* 2895 * ISCSI_ISNS_SERVER_ADDR_LIST_GET 2896 */ 2897 case ISCSI_ISNS_SERVER_ADDR_LIST_GET: 2898 /* copyin user args */ 2899 if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { 2900 rtn = EFAULT; 2901 break; 2902 } 2903 2904 if (ial.al_vers != ISCSI_INTERFACE_VERSION) { 2905 rtn = EINVAL; 2906 break; 2907 } 2908 2909 list_space = sizeof (iscsi_addr_list_t); 2910 if (ial.al_in_cnt != 0) { 2911 list_space += (sizeof (iscsi_addr_t) * 2912 (ial.al_in_cnt - 1)); 2913 } 2914 2915 ialp = kmem_zalloc(list_space, KM_SLEEP); 2916 bcopy(&ial, ialp, sizeof (iscsi_addr_list_t)); 2917 2918 void_p = NULL; 2919 ialp->al_out_cnt = 0; 2920 persistent_isns_addr_lock(); 2921 while (persistent_isns_addr_next(&void_p, &e) == B_TRUE) { 2922 if (ialp->al_out_cnt < ialp->al_in_cnt) { 2923 int i = ialp->al_out_cnt; 2924 iscsi_addr_t *addr = &ialp->al_addrs[i]; 2925 2926 addr->a_port = e.e_port; 2927 addr->a_addr.i_insize = e.e_insize; 2928 if (e.e_insize == sizeof (struct in_addr)) { 2929 /* IPv4 */ 2930 addr->a_addr.i_addr.in4.s_addr = 2931 e.e_u.u_in4.s_addr; 2932 } else if (e.e_insize == 2933 sizeof (struct in6_addr)) { 2934 /* IPv6 */ 2935 bcopy(e.e_u.u_in6.s6_addr, 2936 addr->a_addr.i_addr.in6.s6_addr, 2937 16); 2938 } 2939 } 2940 ialp->al_out_cnt++; 2941 } 2942 persistent_isns_addr_unlock(); 2943 2944 rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); 2945 kmem_free(ialp, list_space); 2946 break; 2947 2948 /* 2949 * ISCSI_DISCOVERY_ADDR_CLEAR: 2950 */ 2951 case ISCSI_DISCOVERY_ADDR_CLEAR: 2952 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2953 rtn = EFAULT; 2954 break; 2955 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2956 rtn = EINVAL; 2957 break; 2958 } 2959 2960 iscsid_addr_to_sockaddr(e.e_insize, 2961 &e.e_u, e.e_port, &addr_dsc.sin); 2962 2963 /* Attempt to logout of associated targets */ 2964 if (iscsid_del(ihp, NULL, 2965 iSCSIDiscoveryMethodSendTargets, &addr_dsc.sin) == 2966 B_TRUE) { 2967 /* Logout successful remove disc. addr. */ 2968 if (persistent_disc_addr_clear(&e) == B_FALSE) { 2969 rtn = EIO; 2970 } 2971 } else { 2972 rtn = EBUSY; 2973 } 2974 break; 2975 2976 /* 2977 * ISCSI_ISNS_SERVER_CLEAR: 2978 */ 2979 case ISCSI_ISNS_SERVER_ADDR_CLEAR: 2980 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2981 rtn = EFAULT; 2982 break; 2983 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2984 rtn = EINVAL; 2985 break; 2986 } 2987 2988 iscsid_addr_to_sockaddr(e.e_insize, 2989 &e.e_u, e.e_port, &addr_dsc.sin); 2990 2991 /* Attempt logout of associated targets */ 2992 if (iscsid_del(ihp, NULL, iSCSIDiscoveryMethodISNS, 2993 &addr_dsc.sin) == B_TRUE) { 2994 /* Logout successful */ 2995 2996 if (persistent_isns_addr_clear(&e) == B_FALSE) { 2997 rtn = EIO; 2998 break; 2999 } 3000 3001 method = persistent_disc_meth_get(); 3002 if (method & iSCSIDiscoveryMethodISNS) { 3003 boolean_t is_last_isns_server_b = 3004 B_FALSE; 3005 int isns_server_count = 0; 3006 void *void_p = NULL; 3007 3008 /* 3009 * Check if the last iSNS server's been 3010 * removed. 3011 */ 3012 { 3013 entry_t tmp_e; 3014 persistent_isns_addr_lock(); 3015 while (persistent_isns_addr_next( 3016 &void_p, &tmp_e) == B_TRUE) { 3017 isns_server_count++; 3018 } 3019 } 3020 persistent_isns_addr_unlock(); 3021 if (isns_server_count == 0) { 3022 is_last_isns_server_b = B_TRUE; 3023 } 3024 3025 /* 3026 * Deregister this node from this iSNS 3027 * server. 3028 */ 3029 initiator_node_name = kmem_zalloc( 3030 ISCSI_MAX_NAME_LEN, KM_SLEEP); 3031 if (persistent_initiator_name_get( 3032 initiator_node_name, 3033 ISCSI_MAX_NAME_LEN) == B_TRUE) { 3034 3035 if (strlen(initiator_node_name) > 0) { 3036 (void) isns_dereg_one_server( 3037 &e, (uint8_t *) 3038 initiator_node_name, 3039 is_last_isns_server_b); 3040 } 3041 } 3042 kmem_free(initiator_node_name, 3043 ISCSI_MAX_NAME_LEN); 3044 initiator_node_name = NULL; 3045 } 3046 } else { 3047 rtn = EBUSY; 3048 } 3049 break; 3050 3051 /* 3052 * ISCSI_DISCOVERY_SET - 3053 */ 3054 case ISCSI_DISCOVERY_SET: 3055 if (ddi_copyin((caddr_t)arg, &method, sizeof (method), mode)) { 3056 rtn = EFAULT; 3057 break; 3058 } 3059 3060 if (persistent_disc_meth_set(method) == B_FALSE) { 3061 rtn = EIO; 3062 } else { 3063 (void) iscsid_enable_discovery(ihp, method, B_FALSE); 3064 iscsid_poke_discovery(ihp, method); 3065 (void) iscsid_login_tgt(ihp, NULL, method, NULL); 3066 } 3067 break; 3068 3069 /* 3070 * ISCSI_DISCOVERY_GET - 3071 */ 3072 case ISCSI_DISCOVERY_GET: 3073 method = persistent_disc_meth_get(); 3074 rtn = ddi_copyout(&method, (caddr_t)arg, 3075 sizeof (method), mode); 3076 break; 3077 3078 /* 3079 * ISCSI_DISCOVERY_CLEAR - 3080 */ 3081 #define ISCSI_DISCOVERY_DELAY 2 /* seconds */ 3082 case ISCSI_DISCOVERY_CLEAR: 3083 if (ddi_copyin((caddr_t)arg, &method, sizeof (method), mode)) { 3084 rtn = EFAULT; 3085 break; 3086 } 3087 3088 /* If discovery in progress, try few times before return busy */ 3089 retry = 0; 3090 mutex_enter(&ihp->hba_discovery_events_mutex); 3091 while (ihp->hba_discovery_in_progress == B_TRUE) { 3092 if (++retry == 5) { 3093 rtn = EBUSY; 3094 break; 3095 } 3096 mutex_exit(&ihp->hba_discovery_events_mutex); 3097 delay(SEC_TO_TICK(ISCSI_DISCOVERY_DELAY)); 3098 mutex_enter(&ihp->hba_discovery_events_mutex); 3099 } 3100 #undef ISCSI_DISCOVERY_DELAY 3101 3102 /* 3103 * Clear discovery first, so that any bus config or 3104 * discovery requests will ignore this discovery method 3105 */ 3106 if (rtn == 0 && persistent_disc_meth_clear(method) == B_FALSE) { 3107 rtn = EIO; 3108 } 3109 mutex_exit(&ihp->hba_discovery_events_mutex); 3110 3111 if (rtn != 0) { 3112 break; 3113 } 3114 3115 /* Attempt to logout from all associated targets */ 3116 if (iscsid_disable_discovery(ihp, method) == B_FALSE) { 3117 /* Failure!, reset the discovery */ 3118 if (persistent_disc_meth_set(method) == B_FALSE) { 3119 cmn_err(CE_WARN, "Failed to reset discovery " 3120 "method after discovery disable failure."); 3121 } 3122 rtn = EBUSY; 3123 } 3124 break; 3125 3126 /* 3127 * ISCSI_DISCOVERY_PROPS - 3128 */ 3129 case ISCSI_DISCOVERY_PROPS: 3130 iscsid_props(&discovery_props); 3131 if (ddi_copyout(&discovery_props, (caddr_t)arg, 3132 sizeof (discovery_props), mode)) 3133 rtn = EFAULT; 3134 break; 3135 3136 /* 3137 * ISCSI_LUN_OID_LIST -- 3138 */ 3139 case ISCSI_LUN_OID_LIST_GET: 3140 ll = (iscsi_lun_list_t *)kmem_alloc(sizeof (*ll), KM_SLEEP); 3141 if (ddi_copyin((caddr_t)arg, ll, sizeof (*ll), mode)) { 3142 rtn = EFAULT; 3143 kmem_free(ll, sizeof (*ll)); 3144 break; 3145 } 3146 3147 if (ll->ll_vers != ISCSI_INTERFACE_VERSION) { 3148 rtn = EINVAL; 3149 kmem_free(ll, sizeof (*ll)); 3150 break; 3151 } 3152 3153 /* 3154 * Find out how much space the user has allocated in their 3155 * structure. Match the same space for our structure. 3156 */ 3157 lun_sz = sizeof (iscsi_lun_list_t); 3158 if (ll->ll_in_cnt > 0) { 3159 lun_sz += (ll->ll_in_cnt - 1) * sizeof (iscsi_if_lun_t); 3160 } 3161 3162 llp = kmem_zalloc(lun_sz, KM_SLEEP); 3163 bcopy(ll, llp, sizeof (*ll)); 3164 kmem_free(ll, sizeof (*ll)); 3165 3166 /* 3167 * Check to see if oid references a target-param oid. If so, 3168 * find the associated session oid before getting lu list. 3169 */ 3170 if (iscsi_targetparam_get_name(llp->ll_tgt_oid) != NULL) { 3171 for (isp = ihp->hba_sess_list; isp; 3172 isp = isp->sess_next) { 3173 if (isp->sess_target_oid == llp->ll_tgt_oid) { 3174 target_oid = isp->sess_oid; 3175 break; 3176 } 3177 } 3178 } else { 3179 target_oid = llp->ll_tgt_oid; 3180 } 3181 3182 3183 /* 3184 * Look at the LUNs attached to the specified target. If there 3185 * is space in the user structure save that information locally. 3186 * Always add up the count to the total. By always adding 3187 * the count this code can be used if ll_in_cnt == 0 and 3188 * the user just wishes to know the appropriate size to 3189 * allocate. 3190 */ 3191 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3192 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 3193 if ((llp->ll_all_tgts == B_FALSE) && 3194 (isp->sess_oid != target_oid)) { 3195 continue; 3196 } 3197 rw_enter(&isp->sess_lun_list_rwlock, RW_READER); 3198 for (ilp = isp->sess_lun_list; ilp; 3199 ilp = ilp->lun_next) { 3200 if ((ilp->lun_state & 3201 ISCSI_LUN_STATE_ONLINE) && 3202 !(ilp->lun_state & 3203 ISCSI_LUN_STATE_INVALID)) { 3204 if (llp->ll_out_cnt < 3205 llp->ll_in_cnt) { 3206 iscsi_if_lun_t *lp; 3207 lp = &llp->ll_luns[ 3208 llp->ll_out_cnt]; 3209 3210 lp->l_tgt_oid = 3211 isp->sess_oid; 3212 lp->l_oid = ilp->lun_oid; 3213 lp->l_num = ilp->lun_num; 3214 } 3215 llp->ll_out_cnt++; 3216 } 3217 } 3218 rw_exit(&isp->sess_lun_list_rwlock); 3219 } 3220 rw_exit(&ihp->hba_sess_list_rwlock); 3221 3222 if (ddi_copyout(llp, (caddr_t)arg, lun_sz, mode)) { 3223 rtn = EFAULT; 3224 } 3225 3226 kmem_free(llp, lun_sz); 3227 break; 3228 3229 /* 3230 * ISCSI_LUN_PROPS_GET -- 3231 */ 3232 case ISCSI_LUN_PROPS_GET: 3233 lun = (iscsi_lun_props_t *)kmem_zalloc(sizeof (*lun), KM_SLEEP); 3234 if (ddi_copyin((caddr_t)arg, lun, sizeof (*lun), mode)) { 3235 rtn = EFAULT; 3236 kmem_free(lun, sizeof (*lun)); 3237 break; 3238 } 3239 3240 if (lun->lp_vers != ISCSI_INTERFACE_VERSION) { 3241 rtn = EINVAL; 3242 kmem_free(lun, sizeof (*lun)); 3243 break; 3244 } 3245 3246 /* 3247 * For the target specified, find the LUN specified and 3248 * return its properties 3249 */ 3250 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3251 rtn = iscsi_sess_get(lun->lp_tgt_oid, ihp, &isp); 3252 if (rtn != 0) { 3253 rw_exit(&ihp->hba_sess_list_rwlock); 3254 rtn = EFAULT; 3255 kmem_free(lun, sizeof (*lun)); 3256 break; 3257 } 3258 rtn = EINVAL; /* Set bad rtn, correct only if found */ 3259 rw_enter(&isp->sess_lun_list_rwlock, RW_READER); 3260 for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { 3261 if (ilp->lun_oid == lun->lp_oid) { 3262 lun->lp_num = ilp->lun_num; 3263 lun->lp_status = LunValid; 3264 lun->lp_time_online = ilp->lun_time_online; 3265 3266 if (ilp->lun_pip != NULL) { 3267 lun_dip = mdi_pi_get_client( 3268 ilp->lun_pip); 3269 } else { 3270 lun_dip = ilp->lun_dip; 3271 } 3272 3273 if (lun_dip != NULL && 3274 ((i_ddi_devi_attached(lun_dip)) || 3275 (ddi_get_devstate(lun_dip) == 3276 DDI_DEVSTATE_UP))) { 3277 (void) ddi_pathname(lun_dip, 3278 lun->lp_pathname); 3279 } else { 3280 /* 3281 * The LUN is not exported to the 3282 * OS yet. It is in the process 3283 * of being added. 3284 */ 3285 lun->lp_status = LunDoesNotExist; 3286 } 3287 bcopy(ilp->lun_vid, lun->lp_vid, 3288 sizeof (lun->lp_vid)); 3289 bcopy(ilp->lun_pid, lun->lp_pid, 3290 sizeof (lun->lp_pid)); 3291 rtn = ddi_copyout(lun, (caddr_t)arg, 3292 sizeof (*lun), mode); 3293 if (rtn == -1) { 3294 rtn = EFAULT; 3295 } 3296 break; 3297 } 3298 } 3299 rw_exit(&isp->sess_lun_list_rwlock); 3300 rw_exit(&ihp->hba_sess_list_rwlock); 3301 3302 kmem_free(lun, sizeof (*lun)); 3303 break; 3304 3305 /* 3306 * ISCSI_CONN_OID_LIST_GET -- 3307 */ 3308 #define ISCSIIOCOLGC iscsi_ioctl_conn_oid_list_get_copyout 3309 case ISCSI_CONN_OID_LIST_GET: 3310 { 3311 iscsi_conn_list_t *cl; 3312 3313 /* Asuume the worst */ 3314 rtn = EFAULT; 3315 3316 /* Copy the input argument into kernel world. */ 3317 cl = iscsi_ioctl_conn_oid_list_get_copyin( 3318 (caddr_t)arg, 3319 mode); 3320 if (cl != NULL) { 3321 if (iscsi_ioctl_conn_oid_list_get(ihp, cl) == 3322 B_TRUE) { 3323 rtn = 3324 ISCSIIOCOLGC( 3325 cl, (caddr_t)arg, mode); 3326 } 3327 } 3328 break; 3329 } 3330 #undef ISCSIIOCOLGC 3331 /* 3332 * ISCSI_CONN_OID_LIST_GET -- 3333 */ 3334 case ISCSI_CONN_PROPS_GET: 3335 { 3336 iscsi_conn_props_t *cp; 3337 3338 /* Asuume the worst */ 3339 rtn = EFAULT; 3340 3341 /* Copy the input argument into kernel world. */ 3342 cp = iscsi_ioctl_copyin( 3343 (caddr_t)arg, 3344 mode, 3345 sizeof (iscsi_conn_props_t)); 3346 3347 if (cp != NULL) { 3348 /* Get the propereties. */ 3349 if (iscsi_ioctl_conn_props_get(ihp, cp) == 3350 B_TRUE) { 3351 rtn = 3352 iscsi_ioctl_copyout( 3353 cp, 3354 sizeof (*cp), 3355 (caddr_t)arg, 3356 mode); 3357 } else { 3358 kmem_free(cp, sizeof (*cp)); 3359 cp = NULL; 3360 } 3361 } 3362 break; 3363 } 3364 3365 /* 3366 * ISCSI_RADIUS_GET - 3367 */ 3368 case ISCSI_RADIUS_GET: 3369 { 3370 iscsi_nvfile_status_t status; 3371 3372 radius = (iscsi_radius_props_t *)kmem_zalloc(sizeof (*radius), 3373 KM_SLEEP); 3374 if (ddi_copyin((caddr_t)arg, radius, sizeof (*radius), mode)) { 3375 kmem_free(radius, sizeof (*radius)); 3376 rtn = EFAULT; 3377 break; 3378 } else if (radius->r_vers != ISCSI_INTERFACE_VERSION) { 3379 kmem_free(radius, sizeof (*radius)); 3380 rtn = EINVAL; 3381 break; 3382 } 3383 3384 old_oid = radius->r_oid; 3385 3386 if (radius->r_oid == ihp->hba_oid) { 3387 name = ihp->hba_name; 3388 } else { 3389 /* 3390 * RADIUS configuration should be done on a per 3391 * initiator basis. 3392 */ 3393 kmem_free(radius, sizeof (*radius)); 3394 rtn = EINVAL; 3395 break; 3396 } 3397 3398 status = persistent_radius_get(radius); 3399 if (status == ISCSI_NVFILE_SUCCESS) { 3400 /* 3401 * Restore the value for overridden (and bogus) oid. 3402 */ 3403 radius->r_oid = old_oid; 3404 rtn = ddi_copyout(radius, (caddr_t)arg, 3405 sizeof (*radius), mode); 3406 } else if (status == ISCSI_NVFILE_NAMEVAL_NOT_FOUND) { 3407 rtn = ENOENT; 3408 } else { 3409 rtn = EIO; 3410 } 3411 kmem_free(radius, sizeof (*radius)); 3412 break; 3413 } 3414 3415 /* 3416 * ISCSI_RADIUS_SET - 3417 */ 3418 case ISCSI_RADIUS_SET: 3419 radius = (iscsi_radius_props_t *)kmem_zalloc(sizeof (*radius), 3420 KM_SLEEP); 3421 if (ddi_copyin((caddr_t)arg, radius, sizeof (*radius), mode)) { 3422 rtn = EFAULT; 3423 kmem_free(radius, sizeof (*radius)); 3424 break; 3425 } else if (radius->r_vers != ISCSI_INTERFACE_VERSION) { 3426 rtn = EINVAL; 3427 kmem_free(radius, sizeof (*radius)); 3428 break; 3429 } 3430 3431 if (radius->r_oid == ihp->hba_oid) { 3432 name = ihp->hba_name; 3433 } else { 3434 /* 3435 * RADIUS configuration should be done on a per 3436 * initiator basis. 3437 */ 3438 kmem_free(radius, sizeof (*radius)); 3439 rtn = EINVAL; 3440 break; 3441 } 3442 3443 if (persistent_radius_set(radius) == B_FALSE) { 3444 rtn = EIO; 3445 } 3446 3447 kmem_free(radius, sizeof (*radius)); 3448 break; 3449 3450 /* 3451 * ISCSI_AUTH_GET - 3452 */ 3453 case ISCSI_AUTH_GET: 3454 auth = (iscsi_auth_props_t *)kmem_zalloc(sizeof (*auth), 3455 KM_SLEEP); 3456 if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { 3457 kmem_free(auth, sizeof (*auth)); 3458 rtn = EFAULT; 3459 break; 3460 } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { 3461 kmem_free(auth, sizeof (*auth)); 3462 rtn = EINVAL; 3463 break; 3464 } 3465 3466 old_oid = auth->a_oid; 3467 3468 if (auth->a_oid == ihp->hba_oid) { 3469 name = ihp->hba_name; 3470 } else { 3471 3472 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3473 /* 3474 * If the oid does represent a session check to see 3475 * if it is a target oid. If so, return the target's 3476 * associated session. 3477 */ 3478 rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); 3479 if (rtn != 0) { 3480 rtn = iscsi_sess_get_by_target(auth->a_oid, 3481 ihp, &isp); 3482 } 3483 rw_exit(&ihp->hba_sess_list_rwlock); 3484 3485 /* 3486 * If rtn is zero then we have found an 3487 * existing session. Use the session name to 3488 * do param lookup. If rtn is non-zero then 3489 * create a targetparam object and use its name 3490 * for param lookup. 3491 */ 3492 if (rtn == 0) { 3493 name = isp->sess_name; 3494 } else { 3495 name = 3496 iscsi_targetparam_get_name(auth->a_oid); 3497 } 3498 } 3499 3500 if (name == NULL) { 3501 rw_exit( 3502 &ihp->hba_sess_list_rwlock); 3503 rtn = EFAULT; 3504 break; 3505 } 3506 3507 if (persistent_auth_get((char *)name, auth) == B_TRUE) { 3508 /* 3509 * Restore the value for overridden (and bogus) oid. 3510 */ 3511 auth->a_oid = old_oid; 3512 rtn = ddi_copyout(auth, (caddr_t)arg, 3513 sizeof (*auth), mode); 3514 } else { 3515 rtn = EIO; 3516 } 3517 3518 kmem_free(auth, sizeof (*auth)); 3519 break; 3520 3521 /* 3522 * ISCSI_AUTH_SET - 3523 */ 3524 case ISCSI_AUTH_SET: 3525 auth = (iscsi_auth_props_t *)kmem_zalloc(sizeof (*auth), 3526 KM_SLEEP); 3527 if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { 3528 kmem_free(auth, sizeof (*auth)); 3529 rtn = EFAULT; 3530 break; 3531 } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { 3532 kmem_free(auth, sizeof (*auth)); 3533 rtn = EINVAL; 3534 break; 3535 } 3536 3537 if (auth->a_oid == ihp->hba_oid) { 3538 name = ihp->hba_name; 3539 } else { 3540 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3541 /* 3542 * If the oid does represent a session check to see 3543 * if it is a target oid. If so, return the target's 3544 * associated session. 3545 */ 3546 rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); 3547 if (rtn != 0) { 3548 rtn = iscsi_sess_get_by_target(auth->a_oid, 3549 ihp, &isp); 3550 } 3551 rw_exit(&ihp->hba_sess_list_rwlock); 3552 3553 /* 3554 * If rtn is zero then we have found an 3555 * existing session. Use the session name to 3556 * do param lookup. If rtn is non-zero then 3557 * create a targetparam object and use its name 3558 * for param lookup. 3559 */ 3560 if (rtn == 0) { 3561 name = isp->sess_name; 3562 } else { 3563 name = 3564 iscsi_targetparam_get_name(auth->a_oid); 3565 rtn = 0; 3566 } 3567 } 3568 3569 if (name == NULL) { 3570 rtn = EFAULT; 3571 } else if (persistent_auth_set((char *)name, auth) 3572 == B_FALSE) { 3573 rtn = EIO; 3574 } 3575 3576 kmem_free(auth, sizeof (*auth)); 3577 break; 3578 3579 /* 3580 * ISCSI_AUTH_CLEAR - 3581 */ 3582 case ISCSI_AUTH_CLEAR: 3583 auth = (iscsi_auth_props_t *)kmem_alloc(sizeof (*auth), 3584 KM_SLEEP); 3585 if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { 3586 kmem_free(auth, sizeof (*auth)); 3587 rtn = EFAULT; 3588 break; 3589 } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { 3590 kmem_free(auth, sizeof (*auth)); 3591 rtn = EINVAL; 3592 break; 3593 } 3594 3595 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3596 /* 3597 * If the oid does represent a session check to see 3598 * if it is a target oid. If so, return the target's 3599 * associated session. 3600 */ 3601 rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); 3602 if (rtn != 0) { 3603 rtn = iscsi_sess_get_by_target(auth->a_oid, ihp, &isp); 3604 } 3605 rw_exit(&ihp->hba_sess_list_rwlock); 3606 3607 /* 3608 * If rtn is zero then we have found an 3609 * existing session. Use the session name to 3610 * do param lookup. If rtn is non-zero then 3611 * create a targetparam object and use its name 3612 * for param lookup. 3613 */ 3614 if (rtn == 0) { 3615 name = isp->sess_name; 3616 } else { 3617 name = 3618 iscsi_targetparam_get_name(auth->a_oid); 3619 rtn = 0; 3620 discovered = B_FALSE; 3621 } 3622 3623 if (name == NULL) { 3624 rw_exit( 3625 &ihp->hba_sess_list_rwlock); 3626 rtn = EFAULT; 3627 break; 3628 } 3629 3630 if (persistent_auth_clear((char *)name) == B_FALSE) { 3631 rtn = EIO; 3632 } 3633 3634 /* 3635 * ISCSI_TARGET_PARAM_CLEAR, ISCSI_CHAP_CLEAR and 3636 * ISCSI_AUTH_CLEAR ioctl are called sequentially to remove 3637 * target parameters. Here, the target that is not discovered 3638 * by initiator should be removed from the iscsi_targets list 3639 * residing in the memory. 3640 */ 3641 if (discovered == B_FALSE) { 3642 (void) iscsi_targetparam_remove_target(auth->a_oid); 3643 } 3644 3645 kmem_free(auth, sizeof (*auth)); 3646 break; 3647 3648 /* 3649 * ISCSI_DB_DUMP - 3650 */ 3651 case ISCSI_DB_DUMP: 3652 persistent_dump_data(); 3653 break; 3654 3655 case ISCSI_USCSI: 3656 3657 #ifdef _MULTI_DATAMODEL 3658 model = ddi_model_convert_from(mode & FMODELS); 3659 switch (model) { 3660 case DDI_MODEL_ILP32: 3661 3662 if (ddi_copyin((caddr_t)arg, &iu32_caller, 3663 sizeof (iscsi_uscsi32_t), mode)) { 3664 rtn = EFAULT; 3665 break; 3666 } 3667 3668 /* perform conversion from 32 -> 64 */ 3669 iu_caller.iu_vers = iu32_caller.iu_vers; 3670 iu_caller.iu_oid = iu32_caller.iu_oid; 3671 iu_caller.iu_tpgt = iu32_caller.iu_tpgt; 3672 iu_caller.iu_len = iu32_caller.iu_len; 3673 iu_caller.iu_lun = iu32_caller.iu_lun; 3674 uscsi_cmd32touscsi_cmd((&iu32_caller.iu_ucmd), 3675 (&iu_caller.iu_ucmd)); 3676 3677 break; 3678 case DDI_MODEL_NONE: 3679 if (ddi_copyin((caddr_t)arg, &iu_caller, 3680 sizeof (iscsi_uscsi_t), mode)) { 3681 rtn = EFAULT; 3682 break; 3683 } 3684 break; 3685 default: 3686 ASSERT(FALSE); 3687 rtn = EINVAL; 3688 break; 3689 } 3690 #endif /* _MULTI_DATAMODEL */ 3691 3692 /* If failures earlier break */ 3693 if (rtn != 0) { 3694 break; 3695 } 3696 3697 /* copy from caller to internel cmd */ 3698 bcopy(&iu_caller, &iu, sizeof (iu)); 3699 3700 if (iu.iu_vers != ISCSI_INTERFACE_VERSION) { 3701 rtn = EINVAL; 3702 break; 3703 } 3704 /* 3705 * Check to see if oid references a target-param oid. If so, 3706 * find the associated session oid before getting lu list. 3707 */ 3708 if (iscsi_targetparam_get_name(iu.iu_oid) != NULL) { 3709 for (isp = ihp->hba_sess_list; isp; isp = 3710 isp->sess_next) { 3711 if (isp->sess_target_oid == iu.iu_oid) { 3712 target_oid = isp->sess_oid; 3713 break; 3714 } 3715 } 3716 } else { 3717 target_oid = iu.iu_oid; 3718 } 3719 3720 /* make sure we have a matching session for this command */ 3721 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3722 rtn = iscsi_sess_get(target_oid, ihp, &isp); 3723 if (rtn != 0) { 3724 rtn = iscsi_sess_get_by_target(target_oid, ihp, 3725 &isp); 3726 if (rtn != 0) { 3727 rw_exit(&ihp->hba_sess_list_rwlock); 3728 rtn = EFAULT; 3729 break; 3730 } 3731 } 3732 /* 3733 * If a caller buffer is present allocate duplicate 3734 * kernel space and copyin caller memory. 3735 */ 3736 if (iu.iu_ucmd.uscsi_buflen > 0) { 3737 iu.iu_ucmd.uscsi_bufaddr = (caddr_t)kmem_alloc( 3738 iu.iu_ucmd.uscsi_buflen, KM_SLEEP); 3739 if (ddi_copyin(iu_caller.iu_ucmd.uscsi_bufaddr, 3740 iu.iu_ucmd.uscsi_bufaddr, 3741 iu.iu_ucmd.uscsi_buflen, mode)) { 3742 rw_exit(&ihp->hba_sess_list_rwlock); 3743 rtn = EFAULT; 3744 break; 3745 } 3746 } 3747 3748 /* 3749 * If a caller cdb is present allocate duplicate 3750 * kernel space and copyin caller memory. 3751 */ 3752 if (iu.iu_ucmd.uscsi_cdblen > 0) { 3753 iu.iu_ucmd.uscsi_cdb = (caddr_t)kmem_alloc( 3754 iu_caller.iu_ucmd.uscsi_cdblen, KM_SLEEP); 3755 if (ddi_copyin(iu_caller.iu_ucmd.uscsi_cdb, 3756 iu.iu_ucmd.uscsi_cdb, 3757 iu.iu_ucmd.uscsi_cdblen, mode)) { 3758 if (iu.iu_ucmd.uscsi_buflen > 0) { 3759 kmem_free(iu.iu_ucmd.uscsi_bufaddr, 3760 iu_caller.iu_ucmd.uscsi_buflen); 3761 } 3762 rw_exit(&ihp->hba_sess_list_rwlock); 3763 rtn = EFAULT; 3764 break; 3765 } 3766 } 3767 3768 /* 3769 * If a caller request sense is present allocate 3770 * duplicate kernel space. No need to copyin. 3771 */ 3772 if (iu.iu_ucmd.uscsi_rqlen > 0) { 3773 iu.iu_ucmd.uscsi_rqbuf = (caddr_t)kmem_alloc( 3774 iu.iu_ucmd.uscsi_rqlen, KM_SLEEP); 3775 } 3776 3777 /* issue passthru to io path handler */ 3778 rtn = iscsi_handle_passthru(isp, iu.iu_lun, &iu.iu_ucmd); 3779 if (rtn != 0) { 3780 rtn = EFAULT; 3781 } 3782 3783 /* 3784 * If the caller had a buf we need to do a copyout 3785 * and free the kernel memory 3786 */ 3787 if (iu.iu_ucmd.uscsi_buflen > 0) { 3788 if (ddi_copyout(iu.iu_ucmd.uscsi_bufaddr, 3789 iu_caller.iu_ucmd.uscsi_bufaddr, 3790 iu.iu_ucmd.uscsi_buflen, mode) != 0) { 3791 rtn = EFAULT; 3792 } 3793 kmem_free(iu.iu_ucmd.uscsi_bufaddr, 3794 iu.iu_ucmd.uscsi_buflen); 3795 } 3796 3797 /* We need to free kernel cdb, no need to copyout */ 3798 if (iu.iu_ucmd.uscsi_cdblen > 0) { 3799 kmem_free(iu.iu_ucmd.uscsi_cdb, 3800 iu.iu_ucmd.uscsi_cdblen); 3801 } 3802 3803 /* 3804 * If the caller had a request sense we need to 3805 * do a copyout and free the kernel memory 3806 */ 3807 if (iu.iu_ucmd.uscsi_rqlen > 0) { 3808 if (ddi_copyout(iu.iu_ucmd.uscsi_rqbuf, 3809 iu_caller.iu_ucmd.uscsi_rqbuf, 3810 iu.iu_ucmd.uscsi_rqlen, mode) != 0) { 3811 rtn = EFAULT; 3812 } 3813 kmem_free(iu.iu_ucmd.uscsi_rqbuf, 3814 iu.iu_ucmd.uscsi_rqlen); 3815 } 3816 3817 #ifdef _MULTI_DATAMODEL 3818 if (iu.iu_ucmd.uscsi_status != 0) { 3819 switch (model = ddi_model_convert_from( 3820 mode & FMODELS)) { 3821 case DDI_MODEL_ILP32: 3822 iu32_caller.iu_ucmd.uscsi_status = 3823 iu.iu_ucmd.uscsi_status; 3824 if (ddi_copyout((void *)&iu32_caller, 3825 (caddr_t)arg, sizeof (iscsi_uscsi32_t), 3826 mode) != 0) { 3827 rtn = EFAULT; 3828 } 3829 break; 3830 case DDI_MODEL_NONE: 3831 iu_caller.iu_ucmd.uscsi_status = 3832 iu.iu_ucmd.uscsi_status; 3833 if (ddi_copyout((void *)&iu_caller, 3834 (caddr_t)arg, sizeof (iscsi_uscsi_t), 3835 mode) != 0) { 3836 rtn = EFAULT; 3837 } 3838 break; 3839 default: 3840 ASSERT(FALSE); 3841 } 3842 } 3843 #endif /* _MULTI_DATAMODEL */ 3844 rw_exit(&ihp->hba_sess_list_rwlock); 3845 break; 3846 3847 case ISCSI_SMF_ONLINE: 3848 if (ddi_copyin((caddr_t)arg, &did, sizeof (int), mode) != 0) { 3849 rtn = EFAULT; 3850 break; 3851 } 3852 /* just a theoretical case */ 3853 if (ihp->hba_persistent_loaded == B_FALSE) { 3854 rtn = EFAULT; 3855 break; 3856 } 3857 3858 if (iscsi_enter_service_zone(ihp, ISCSI_SERVICE_ENABLED) == 3859 B_FALSE) { 3860 break; 3861 } 3862 3863 rval = iscsi_door_bind(did); 3864 if (rval == B_TRUE) { 3865 rval = iscsid_start(ihp); 3866 if (rval == B_FALSE) { 3867 iscsi_door_unbind(); 3868 } 3869 } 3870 3871 if (rval == B_TRUE) { 3872 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_ENABLED); 3873 } else { 3874 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_DISABLED); 3875 rtn = EFAULT; 3876 } 3877 3878 break; 3879 3880 case ISCSI_SMF_OFFLINE: 3881 if (iscsi_enter_service_zone(ihp, ISCSI_SERVICE_DISABLED) 3882 == B_FALSE) { 3883 break; 3884 } 3885 3886 rval = iscsid_stop(ihp); 3887 3888 if (rval == B_TRUE) { 3889 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_DISABLED); 3890 iscsi_door_unbind(); 3891 } else { 3892 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_ENABLED); 3893 rtn = EFAULT; 3894 } 3895 break; 3896 3897 case ISCSI_SMF_GET: 3898 mutex_enter(&ihp->hba_service_lock); 3899 while (ihp->hba_service_status == 3900 ISCSI_SERVICE_TRANSITION) { 3901 cv_wait(&ihp->hba_service_cv, 3902 &ihp->hba_service_lock); 3903 } 3904 if (ddi_copyout((void *)&ihp->hba_service_status, 3905 (caddr_t)arg, sizeof (boolean_t), mode) != 0) { 3906 rtn = EFAULT; 3907 } 3908 mutex_exit(&ihp->hba_service_lock); 3909 break; 3910 3911 case ISCSI_DISCOVERY_EVENTS: 3912 /* 3913 * If discovery has not been completed and not in progress, 3914 * poke the discovery methods 3915 */ 3916 mutex_enter(&ihp->hba_discovery_events_mutex); 3917 method = ihp->hba_discovery_events; 3918 if ((method != ISCSI_ALL_DISCOVERY_METHODS) && 3919 (ihp->hba_discovery_in_progress == B_FALSE)) { 3920 ihp->hba_discovery_in_progress = B_TRUE; 3921 mutex_exit(&ihp->hba_discovery_events_mutex); 3922 iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodUnknown); 3923 mutex_enter(&ihp->hba_discovery_events_mutex); 3924 ihp->hba_discovery_in_progress = B_FALSE; 3925 method = ihp->hba_discovery_events; 3926 } 3927 mutex_exit(&ihp->hba_discovery_events_mutex); 3928 3929 if (ddi_copyout((void *)&method, (caddr_t)arg, 3930 sizeof (method), mode) != 0) 3931 rtn = EFAULT; 3932 break; 3933 3934 /* 3935 * ISCSI_SENDTGTS_GET -- 3936 */ 3937 case ISCSI_SENDTGTS_GET: 3938 stl_hdr = iscsi_ioctl_copyin((caddr_t)arg, mode, 3939 sizeof (*stl_hdr)); 3940 if (stl_hdr == NULL) { 3941 rtn = EFAULT; 3942 break; 3943 } 3944 3945 if (stl_hdr->stl_entry.e_vers != ISCSI_INTERFACE_VERSION) { 3946 rtn = EINVAL; 3947 kmem_free(stl_hdr, sizeof (*stl_hdr)); 3948 break; 3949 } 3950 3951 /* calculate how much memory user allocated for SendTgts */ 3952 stl_sz = sizeof (*stl_hdr); 3953 if (stl_hdr->stl_in_cnt > 0) { 3954 stl_sz += ((stl_hdr->stl_in_cnt - 1) * 3955 sizeof (iscsi_sendtgts_entry_t)); 3956 } 3957 3958 /* allocate local SendTgts list of the same size */ 3959 istl = kmem_zalloc(stl_sz, KM_SLEEP); 3960 bcopy(stl_hdr, istl, sizeof (*stl_hdr)); 3961 kmem_free(stl_hdr, sizeof (*stl_hdr)); 3962 3963 /* lock interface so only one SendTargets operation occurs */ 3964 sema_p(&ihp->hba_sendtgts_semaphore); 3965 3966 rtn = iscsi_ioctl_sendtgts_get(ihp, istl); 3967 3968 if (rtn == 0) { 3969 rtn = iscsi_ioctl_copyout(istl, stl_sz, 3970 (caddr_t)arg, mode); 3971 } 3972 3973 /* release lock to allow another SendTargets discovery */ 3974 sema_v(&ihp->hba_sendtgts_semaphore); 3975 3976 break; 3977 3978 /* 3979 * ISCSI_ISNS_SERVER_GET -- 3980 */ 3981 case ISCSI_ISNS_SERVER_GET: 3982 server_pg_list_hdr = iscsi_ioctl_copyin((caddr_t)arg, mode, 3983 sizeof (*server_pg_list_hdr)); 3984 if (server_pg_list_hdr == NULL) { 3985 rtn = EFAULT; 3986 break; 3987 } 3988 3989 /* If iSNS discovery mode is not set, return with zero entry */ 3990 method = persistent_disc_meth_get(); 3991 if ((method & iSCSIDiscoveryMethodISNS) == 0) { 3992 kmem_free(server_pg_list_hdr, 3993 sizeof (*server_pg_list_hdr)); 3994 server_pg_list_hdr = NULL; 3995 rtn = EACCES; 3996 break; 3997 } 3998 3999 initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 4000 if (persistent_initiator_name_get(initiator_node_name, 4001 ISCSI_MAX_NAME_LEN) != B_TRUE) { 4002 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4003 initiator_node_name = NULL; 4004 kmem_free(server_pg_list_hdr, 4005 sizeof (*server_pg_list_hdr)); 4006 server_pg_list_hdr = NULL; 4007 rtn = EIO; 4008 break; 4009 } 4010 if (strlen(initiator_node_name) == 0) { 4011 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4012 initiator_node_name = NULL; 4013 kmem_free(server_pg_list_hdr, 4014 sizeof (*server_pg_list_hdr)); 4015 server_pg_list_hdr = NULL; 4016 rtn = EIO; 4017 break; 4018 } 4019 4020 initiator_node_alias = kmem_zalloc( 4021 ISCSI_MAX_NAME_LEN, KM_SLEEP); 4022 if (persistent_alias_name_get(initiator_node_alias, 4023 ISCSI_MAX_NAME_LEN) != B_TRUE) { 4024 initiator_node_alias[0] = '\0'; 4025 } 4026 rtn = isns_query_one_server(&(server_pg_list_hdr->addr), 4027 ihp->hba_isid, 4028 (uint8_t *)initiator_node_name, 4029 (uint8_t *)initiator_node_alias, 4030 ISNS_INITIATOR_NODE_TYPE, 4031 &pg_list); 4032 if (rtn != isns_ok || pg_list == NULL) { 4033 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4034 initiator_node_name = NULL; 4035 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 4036 initiator_node_alias = NULL; 4037 kmem_free(server_pg_list_hdr, 4038 sizeof (*server_pg_list_hdr)); 4039 server_pg_list_hdr = NULL; 4040 rtn = EIO; 4041 break; 4042 } 4043 4044 /* 4045 * pg_list_sz is the size of the pg_list returned from the 4046 * isns_query_all 4047 * 4048 * pg_sz_copy_out is the size of the pg_list we are going to 4049 * return back to the caller 4050 * 4051 * server_pg_list_sz is total amount of data we are returning 4052 * back to the caller 4053 */ 4054 pg_list->pg_in_cnt = 4055 server_pg_list_hdr->addr_port_list.pg_in_cnt; 4056 pg_list_sz = sizeof (isns_portal_group_list_t); 4057 if (pg_list->pg_out_cnt > 0) { 4058 pg_list_sz += (pg_list->pg_out_cnt - 1) * 4059 sizeof (isns_portal_group_t); 4060 } 4061 /* 4062 * check if caller passed in a buffer with enough space 4063 * if there isn't enough space, fill the caller's buffer with 4064 * as much information as possible. 4065 * 4066 * if pg_out_cnt > pg_in_cnt, pg_out_cnt will be returned with 4067 * the total number of targets found 4068 * 4069 * if pg_out_cnt < pg_in_cnt, pg_out_cnt will be the number 4070 * of targets returned 4071 */ 4072 if (pg_list->pg_in_cnt < pg_list->pg_out_cnt) { 4073 pg_sz_copy_out = sizeof (isns_portal_group_list_t); 4074 if (pg_list->pg_in_cnt > 0) { 4075 pg_sz_copy_out += (pg_list->pg_in_cnt - 1) * 4076 sizeof (isns_portal_group_t); 4077 } 4078 server_pg_list_sz = 4079 sizeof (isns_server_portal_group_list_t); 4080 if (pg_list->pg_in_cnt > 0) { 4081 server_pg_list_sz += (pg_list->pg_in_cnt - 1) * 4082 sizeof (isns_portal_group_t); 4083 } 4084 } else { 4085 pg_sz_copy_out = pg_list_sz; 4086 server_pg_list_sz = 4087 sizeof (isns_server_portal_group_list_t); 4088 if (pg_list->pg_out_cnt > 0) { 4089 server_pg_list_sz += (pg_list->pg_out_cnt - 1) * 4090 sizeof (isns_portal_group_t); 4091 } 4092 } 4093 4094 server_pg_list = (isns_server_portal_group_list_t *)kmem_zalloc( 4095 server_pg_list_sz, KM_SLEEP); 4096 4097 bcopy(&(server_pg_list_hdr->addr), &(server_pg_list->addr), 4098 sizeof (server_pg_list->addr)); 4099 bcopy(pg_list, &server_pg_list->addr_port_list, pg_sz_copy_out); 4100 4101 if (ddi_copyout(server_pg_list, (caddr_t)arg, server_pg_list_sz, 4102 mode) != 0) { 4103 rtn = EFAULT; 4104 } 4105 DTRACE_PROBE1(iscsi_ioctl_iscsi_isns_server_get_pg_sz, 4106 int, pg_list_sz); 4107 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4108 initiator_node_name = NULL; 4109 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 4110 initiator_node_alias = NULL; 4111 kmem_free(pg_list, pg_list_sz); 4112 pg_list = NULL; 4113 kmem_free(server_pg_list, server_pg_list_sz); 4114 server_pg_list = NULL; 4115 kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); 4116 server_pg_list_hdr = NULL; 4117 break; 4118 4119 /* 4120 * ISCSI_GET_CONFIG_SESSIONS -- 4121 */ 4122 case ISCSI_GET_CONFIG_SESSIONS: 4123 /* FALLTHRU */ 4124 4125 case ISCSI_SET_CONFIG_SESSIONS: 4126 size = sizeof (*ics); 4127 ics = iscsi_ioctl_copyin((caddr_t)arg, mode, size); 4128 if (ics == NULL) { 4129 rtn = EFAULT; 4130 break; 4131 } 4132 4133 /* verify version infomration */ 4134 if (ics->ics_ver != ISCSI_INTERFACE_VERSION) { 4135 rtn = EINVAL; 4136 kmem_free(ics, size); 4137 ics = NULL; 4138 break; 4139 } 4140 4141 /* Check to see if we need to copy in more memory */ 4142 if (ics->ics_in > 1) { 4143 /* record correct size */ 4144 size = ISCSI_SESSION_CONFIG_SIZE(ics->ics_in); 4145 /* free old buffer */ 4146 kmem_free(ics, sizeof (*ics)); 4147 4148 /* copy in complete buffer size */ 4149 ics = iscsi_ioctl_copyin((caddr_t)arg, mode, size); 4150 if (ics == NULL) { 4151 rtn = EFAULT; 4152 break; 4153 } 4154 } 4155 4156 /* switch action based on get or set */ 4157 if (cmd == ISCSI_GET_CONFIG_SESSIONS) { 4158 /* get */ 4159 rtn = iscsi_ioctl_get_config_sess(ihp, ics); 4160 if (rtn == 0) { 4161 /* copyout data for gets */ 4162 rtn = iscsi_ioctl_copyout(ics, size, 4163 (caddr_t)arg, mode); 4164 } else { 4165 kmem_free(ics, size); 4166 ics = NULL; 4167 } 4168 } else { 4169 /* set */ 4170 rtn = iscsi_ioctl_set_config_sess(ihp, ics); 4171 if (iscsiboot_prop) { 4172 if (iscsi_cmp_boot_sess_oid(ihp, 4173 ics->ics_oid)) { 4174 /* 4175 * found active session for this object 4176 * or this is initiator object 4177 * with mpxio enabled 4178 */ 4179 if (!iscsi_reconfig_boot_sess(ihp)) { 4180 kmem_free(ics, size); 4181 ics = NULL; 4182 rtn = EINVAL; 4183 break; 4184 } 4185 } 4186 } 4187 kmem_free(ics, size); 4188 ics = NULL; 4189 } 4190 break; 4191 4192 case ISCSI_IS_ACTIVE: 4193 /* 4194 * dhcpagent calls here to check if there are 4195 * active iSCSI sessions 4196 */ 4197 instance = 0; 4198 if (iscsiboot_prop) { 4199 instance = 1; 4200 } 4201 if (!instance) { 4202 rw_enter(&ihp->hba_sess_list_rwlock, 4203 RW_READER); 4204 for (isp = ihp->hba_sess_list; isp; 4205 isp = isp->sess_next) { 4206 if ((isp->sess_state == 4207 ISCSI_SESS_STATE_LOGGED_IN) && 4208 (isp->sess_lun_list != 4209 NULL)) { 4210 instance = 1; 4211 break; 4212 } 4213 } 4214 rw_exit(&ihp->hba_sess_list_rwlock); 4215 } 4216 size = sizeof (instance); 4217 if (ddi_copyout(&instance, (caddr_t)arg, size, 4218 mode) != 0) { 4219 rtn = EFAULT; 4220 } 4221 break; 4222 4223 case ISCSI_BOOTPROP_GET: 4224 size = sizeof (*bootProp); 4225 bootProp = iscsi_ioctl_copyin((caddr_t)arg, mode, size); 4226 if (bootProp == NULL) { 4227 rtn = EFAULT; 4228 break; 4229 } 4230 bootProp->hba_mpxio_enabled = 4231 iscsi_chk_bootlun_mpxio(ihp); 4232 if (iscsiboot_prop == NULL) { 4233 bootProp->iscsiboot = 0; 4234 rtn = iscsi_ioctl_copyout(bootProp, size, 4235 (caddr_t)arg, mode); 4236 break; 4237 } else { 4238 bootProp->iscsiboot = 1; 4239 } 4240 4241 if (iscsiboot_prop->boot_init.ini_name != NULL) { 4242 (void) strncpy((char *)bootProp->ini_name.n_name, 4243 (char *)iscsiboot_prop->boot_init.ini_name, 4244 ISCSI_MAX_NAME_LEN); 4245 } 4246 if (iscsiboot_prop->boot_init.ini_chap_name != NULL) { 4247 bootProp->auth.a_auth_method = authMethodCHAP; 4248 (void) strncpy((char *)bootProp->ini_chap.c_user, 4249 (char *)iscsiboot_prop->boot_init.ini_chap_name, 4250 ISCSI_MAX_NAME_LEN); 4251 (void) strncpy((char *)bootProp->ini_chap.c_secret, 4252 (char *)iscsiboot_prop->boot_init.ini_chap_sec, 4253 ISCSI_CHAP_SECRET_LEN); 4254 if (iscsiboot_prop->boot_tgt.tgt_chap_name != 4255 NULL) { 4256 bootProp->auth.a_bi_auth = B_TRUE; 4257 } else { 4258 bootProp->auth.a_bi_auth = B_FALSE; 4259 } 4260 } 4261 if (iscsiboot_prop->boot_tgt.tgt_name != NULL) { 4262 (void) strncpy((char *)bootProp->tgt_name.n_name, 4263 (char *)iscsiboot_prop->boot_tgt.tgt_name, 4264 ISCSI_MAX_NAME_LEN); 4265 } 4266 if (iscsiboot_prop->boot_tgt.tgt_chap_name != NULL) { 4267 (void) strncpy((char *)bootProp->tgt_chap.c_user, 4268 (char *)iscsiboot_prop->boot_tgt.tgt_chap_name, 4269 ISCSI_MAX_NAME_LEN); 4270 (void) strncpy((char *)bootProp->tgt_chap.c_secret, 4271 (char *)iscsiboot_prop->boot_tgt.tgt_chap_sec, 4272 ISCSI_CHAP_SECRET_LEN); 4273 } 4274 4275 rtn = iscsi_ioctl_copyout(bootProp, size, (caddr_t)arg, mode); 4276 break; 4277 4278 default: 4279 rtn = ENOTTY; 4280 cmn_err(CE_NOTE, "unrecognized ioctl 0x%x", cmd); 4281 } /* end of ioctl type switch/cases */ 4282 4283 if ((cmd != ISCSI_SMF_ONLINE) && (cmd != ISCSI_SMF_OFFLINE) && 4284 (cmd != ISCSI_SMF_GET)) { 4285 /* other cmds need to release the service */ 4286 iscsi_client_release_service(ihp); 4287 } 4288 4289 return (rtn); 4290 } 4291 4292 /* 4293 * +--------------------------------------------------------------------+ 4294 * | End of cb_ops routines | 4295 * +--------------------------------------------------------------------+ 4296 */ 4297 4298 4299 /* 4300 * +--------------------------------------------------------------------+ 4301 * | Common scsi_tran support routines | 4302 * +--------------------------------------------------------------------+ 4303 */ 4304 4305 /* 4306 * iscsi_i_commoncap -- SCSA host adapter get/set capability routines. 4307 * 4308 * Need to determine if any of these can be determined through the iSCSI 4309 * protocol. For now just return error on most. 4310 */ 4311 /* ARGSUSED */ 4312 static int 4313 iscsi_i_commoncap(struct scsi_address *ap, char *cap, int val, 4314 int tgtonly, int doset) 4315 { 4316 int rtn; 4317 int cidx; 4318 iscsi_lun_t *ilp; 4319 4320 ASSERT((ap)->a_hba_tran->tran_hba_private != NULL); 4321 ilp = (iscsi_lun_t *)((ap)->a_hba_tran->tran_tgt_private); 4322 ASSERT(ilp != NULL); 4323 4324 if (cap == (char *)0) { 4325 return (FALSE); 4326 } 4327 4328 cidx = scsi_hba_lookup_capstr(cap); 4329 if (cidx == -1) { 4330 return (cidx); 4331 } 4332 4333 /* 4334 * Process setcap request. 4335 */ 4336 if (doset) { 4337 /* 4338 * At present, we can only set binary (0/1) values 4339 */ 4340 switch (cidx) { 4341 case SCSI_CAP_LUN_RESET: 4342 if (val) { 4343 ilp->lun_cap |= ISCSI_LUN_CAP_RESET; 4344 } else { 4345 ilp->lun_cap &= ~ISCSI_LUN_CAP_RESET; 4346 } 4347 rtn = TRUE; 4348 break; 4349 default: 4350 /* 4351 * None of these are settable via 4352 * the capability interface. 4353 */ 4354 rtn = FALSE; 4355 break; 4356 } 4357 4358 /* 4359 * Process getcap request. 4360 */ 4361 } else { 4362 switch (cidx) { 4363 case SCSI_CAP_DMA_MAX: 4364 /* no DMA, Psuedo value */ 4365 rtn = INT32_MAX; 4366 break; 4367 case SCSI_CAP_INITIATOR_ID: 4368 rtn = 7; 4369 break; 4370 case SCSI_CAP_ARQ: 4371 case SCSI_CAP_RESET_NOTIFICATION: 4372 case SCSI_CAP_TAGGED_QING: 4373 rtn = TRUE; 4374 break; 4375 case SCSI_CAP_SCSI_VERSION: 4376 rtn = SCSI_VERSION_3; 4377 break; 4378 case SCSI_CAP_INTERCONNECT_TYPE: 4379 rtn = INTERCONNECT_FABRIC; 4380 break; 4381 case SCSI_CAP_LUN_RESET: 4382 rtn = ((ilp->lun_cap & ISCSI_LUN_CAP_RESET) != 0) ? 4383 TRUE : FALSE; 4384 break; 4385 case SCSI_CAP_CDB_LEN: 4386 /* 4387 * iSCSI RFC 3720 defines a default 16 byte 4388 * CDB as part of the Basic Header Segment 4389 * (BHS) (10.2.1) and allows for an Additional 4390 * Header Segment (AHS) Length of 255 * 4 4391 * (10.2.1.5). The AHS length can be used 4392 * for different purposes two of which are 4393 * Extended CDB ADS (10.2.2.3) and Bidirectional 4394 * Expected Read-Data Length AHS (10.2.2.4). 4395 * The largest header of these consumes is 4396 * 32 bytes. So the total Max CDB Length is 4397 * 16 + ((255 * 4 ) - 32) = 1004. 4398 */ 4399 rtn = 1004; 4400 break; 4401 default: 4402 rtn = UNDEFINED; 4403 break; 4404 } 4405 } 4406 return (rtn); 4407 } 4408 4409 /* 4410 * iscsi_virt_lun_init - attempts to complete a mdi/scsi_vhci binding 4411 * 4412 * This routine is used to associate the tran_tgt_private to our ilp 4413 * structure. This function is indirectly called from our 4414 * iscsi_lun_create_xxx routines. These routines must prevent 4415 * the session and lun lists from changing during this call. 4416 */ 4417 /* ARGSUSED */ 4418 static int 4419 iscsi_virt_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 4420 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 4421 { 4422 iscsi_lun_t *ilp = NULL; 4423 iscsi_lun_t *ilp_check = NULL; 4424 iscsi_sess_t *isp = NULL; 4425 char *lun_guid = NULL; 4426 mdi_pathinfo_t *pip = NULL; 4427 iscsi_hba_t *ihp = (iscsi_hba_t *)hba_tran->tran_hba_private; 4428 char target_port_name[MAX_NAME_PROP_SIZE]; 4429 4430 /* 4431 * Here's a nice little piece of undocumented stuff. 4432 */ 4433 if ((pip = (mdi_pathinfo_t *)sd->sd_private) == NULL) { 4434 /* 4435 * Very bad news if this occurs. Somehow SCSI_vhci has 4436 * lost the pathinfo node for this target. 4437 */ 4438 return (DDI_NOT_WELL_FORMED); 4439 } 4440 4441 ilp = (iscsi_lun_t *)mdi_pi_get_phci_private(pip); 4442 4443 /* 4444 * +----------------------------------------------------+ 4445 * | Looking to find the target device via the property | 4446 * | is not required since the driver can easily get | 4447 * | this information from the mdi_phci_get_private() | 4448 * | call above. This is just a consistency check | 4449 * | which can be removed. | 4450 */ 4451 if (mdi_prop_lookup_string(pip, MDI_GUID, &lun_guid) != 4452 DDI_PROP_SUCCESS) { 4453 return (DDI_NOT_WELL_FORMED); 4454 } 4455 4456 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 4457 4458 /* If this isn't the matching session continue */ 4459 if (ilp->lun_sess != isp) { 4460 continue; 4461 } 4462 4463 /* 4464 * We are already holding the lun list rwlock 4465 * for this thread on the callers side of mdi_pi_online 4466 * or ndi_devi_online. Which lead to this functions 4467 * call. 4468 */ 4469 for (ilp_check = isp->sess_lun_list; ilp_check; 4470 ilp_check = ilp_check->lun_next) { 4471 4472 /* 4473 * If this is the matching LUN and contains 4474 * the same LUN GUID then break we found our 4475 * match. 4476 */ 4477 if ((ilp == ilp_check) && 4478 (strcmp(lun_guid, ilp_check->lun_guid) == 0)) { 4479 break; 4480 } 4481 } 4482 if (ilp_check != NULL) { 4483 break; 4484 } 4485 } 4486 4487 /* 4488 * Free resource that's no longer required. 4489 */ 4490 if (lun_guid != NULL) 4491 (void) mdi_prop_free(lun_guid); 4492 4493 if (ilp_check == NULL) { 4494 /* 4495 * Failed to find iSCSI LUN in HBA chain based 4496 * on the GUID that was stored as a property on 4497 * the pathinfo node. 4498 */ 4499 return (DDI_NOT_WELL_FORMED); 4500 } 4501 4502 if (ilp != ilp_check) { 4503 /* 4504 * The iSCSI target that we found on the HBA link is 4505 * different than the iSCSI target that was stored as 4506 * private data on the pathinfo node. 4507 */ 4508 return (DDI_NOT_WELL_FORMED); 4509 } 4510 /* 4511 * | End of consistency check | 4512 * +----------------------------------------------------+ 4513 */ 4514 4515 hba_tran->tran_tgt_private = ilp; 4516 4517 target_port_name[0] = '\0'; 4518 if (ilp->lun_sess->sess_tpgt_conf == ISCSI_DEFAULT_TPGT) { 4519 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4520 "%02x%02x%02x%02x%02x%02x,%s", 4521 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4522 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4523 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4524 ilp->lun_sess->sess_name); 4525 } else { 4526 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4527 "%02x%02x%02x%02x%02x%02x,%s,%d", 4528 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4529 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4530 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4531 ilp->lun_sess->sess_name, ilp->lun_sess->sess_tpgt_conf); 4532 } 4533 4534 if (mdi_prop_update_string(pip, "target-port", 4535 target_port_name) != DDI_PROP_SUCCESS) { 4536 cmn_err(CE_WARN, "iscsi_virt_lun_init: Creating 'target-port' " 4537 "property on Path(%p) for Target(%s), Lun(%d) Failed", 4538 (void *)pip, ilp->lun_sess->sess_name, ilp->lun_num); 4539 } 4540 4541 return (DDI_SUCCESS); 4542 } 4543 4544 /* 4545 * iscsi_phys_lun_init - attempts to complete a ndi binding 4546 * 4547 * This routine is used to associate the tran_tgt_private to our 4548 * ilp structure. This function is indirectly called from our 4549 * iscsi_lun_create_xxx routines. These routines must prevent 4550 * the session and lun lists from changing during this call. 4551 */ 4552 static int 4553 iscsi_phys_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 4554 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 4555 { 4556 int rtn = DDI_SUCCESS; 4557 iscsi_hba_t *ihp = NULL; 4558 iscsi_sess_t *isp = NULL; 4559 iscsi_lun_t *ilp = NULL; 4560 char target_port_name[MAX_NAME_PROP_SIZE]; 4561 int *words = NULL; 4562 uint_t nwords = 0; 4563 4564 ASSERT(hba_dip); 4565 ASSERT(lun_dip); 4566 ASSERT(hba_tran); 4567 ASSERT(sd); 4568 ihp = (iscsi_hba_t *)hba_tran->tran_hba_private; 4569 ASSERT(ihp); 4570 4571 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, lun_dip, 4572 DDI_PROP_DONTPASS, LUN_PROP, &words, &nwords) != DDI_PROP_SUCCESS) { 4573 cmn_err(CE_WARN, "iscsi_phys_lun_init: Returning DDI_FAILURE:" 4574 "lun for %s (instance %d)", ddi_get_name(lun_dip), 4575 ddi_get_instance(lun_dip)); 4576 return (DDI_FAILURE); 4577 } 4578 4579 if (nwords == 0) { 4580 ddi_prop_free(words); 4581 return (DDI_FAILURE); 4582 } 4583 4584 ASSERT(words != NULL); 4585 4586 /* See if we already created this session */ 4587 4588 /* Walk the HBA's session list */ 4589 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 4590 /* compare target name as the unique identifier */ 4591 if (sd->sd_address.a_target == isp->sess_oid) { 4592 /* found match */ 4593 break; 4594 } 4595 } 4596 4597 /* If we found matching session continue searching for tgt */ 4598 if (isp != NULL) { 4599 /* 4600 * Search for the matching iscsi lun structure. We don't 4601 * need to hold the READER for the lun list at this point. 4602 * because the tran_get_name is being called from the online 4603 * function which is already holding a reader on the lun 4604 * list. 4605 */ 4606 for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { 4607 if (*words == ilp->lun_num) { 4608 /* found match */ 4609 break; 4610 } 4611 } 4612 4613 if (ilp != NULL) { 4614 /* 4615 * tgt found path it to the tran_lun_private 4616 * this is used later for fast access on 4617 * init_pkt and start 4618 */ 4619 hba_tran->tran_tgt_private = ilp; 4620 } else { 4621 /* tgt not found */ 4622 ddi_prop_free(words); 4623 return (DDI_FAILURE); 4624 } 4625 } else { 4626 /* sess not found */ 4627 ddi_prop_free(words); 4628 return (DDI_FAILURE); 4629 } 4630 ddi_prop_free(words); 4631 4632 target_port_name[0] = '\0'; 4633 if (ilp->lun_sess->sess_tpgt_conf == ISCSI_DEFAULT_TPGT) { 4634 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4635 "%02x%02x%02x%02x%02x%02x,%s", 4636 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4637 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4638 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4639 ilp->lun_sess->sess_name); 4640 } else { 4641 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4642 "%02x%02x%02x%02x%02x%02x,%s,%d", 4643 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4644 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4645 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4646 ilp->lun_sess->sess_name, ilp->lun_sess->sess_tpgt_conf); 4647 } 4648 4649 if (ddi_prop_update_string(DDI_DEV_T_NONE, lun_dip, 4650 "target-port", target_port_name) != DDI_PROP_SUCCESS) { 4651 cmn_err(CE_WARN, "iscsi_phys_lun_init: Creating 'target-port' " 4652 "property on Target(%s), Lun(%d) Failed", 4653 ilp->lun_sess->sess_name, ilp->lun_num); 4654 } 4655 4656 return (rtn); 4657 } 4658 4659 /* 4660 * +--------------------------------------------------------------------+ 4661 * | End of scsi_tran support routines | 4662 * +--------------------------------------------------------------------+ 4663 */ 4664 4665 /* 4666 * +--------------------------------------------------------------------+ 4667 * | Begin of struct utility routines | 4668 * +--------------------------------------------------------------------+ 4669 */ 4670 4671 4672 /* 4673 * iscsi_set_default_login_params - This function sets the 4674 * driver default login params. This is using during the 4675 * creation of our iSCSI HBA structure initialization by 4676 * could be used at other times to reset back to the defaults. 4677 */ 4678 void 4679 iscsi_set_default_login_params(iscsi_login_params_t *params) 4680 { 4681 params->immediate_data = ISCSI_DEFAULT_IMMEDIATE_DATA; 4682 params->initial_r2t = ISCSI_DEFAULT_INITIALR2T; 4683 params->first_burst_length = ISCSI_DEFAULT_FIRST_BURST_LENGTH; 4684 params->max_burst_length = ISCSI_DEFAULT_MAX_BURST_LENGTH; 4685 params->data_pdu_in_order = ISCSI_DEFAULT_DATA_PDU_IN_ORDER; 4686 params->data_sequence_in_order = ISCSI_DEFAULT_DATA_SEQUENCE_IN_ORDER; 4687 params->default_time_to_wait = ISCSI_DEFAULT_TIME_TO_WAIT; 4688 params->default_time_to_retain = ISCSI_DEFAULT_TIME_TO_RETAIN; 4689 params->header_digest = ISCSI_DEFAULT_HEADER_DIGEST; 4690 params->data_digest = ISCSI_DEFAULT_DATA_DIGEST; 4691 params->max_recv_data_seg_len = ISCSI_DEFAULT_MAX_RECV_SEG_LEN; 4692 params->max_xmit_data_seg_len = ISCSI_DEFAULT_MAX_XMIT_SEG_LEN; 4693 params->max_connections = ISCSI_DEFAULT_MAX_CONNECTIONS; 4694 params->max_outstanding_r2t = ISCSI_DEFAULT_MAX_OUT_R2T; 4695 params->error_recovery_level = ISCSI_DEFAULT_ERROR_RECOVERY_LEVEL; 4696 params->ifmarker = ISCSI_DEFAULT_IFMARKER; 4697 params->ofmarker = ISCSI_DEFAULT_OFMARKER; 4698 } 4699 4700 4701 /* 4702 * +--------------------------------------------------------------------+ 4703 * | End of struct utility routines | 4704 * +--------------------------------------------------------------------+ 4705 */ 4706 4707 /* 4708 * +--------------------------------------------------------------------+ 4709 * | Begin of ioctl utility routines | 4710 * +--------------------------------------------------------------------+ 4711 */ 4712 4713 /* 4714 * iscsi_get_param - This function is a helper to ISCSI_GET_PARAM 4715 * IOCTL 4716 */ 4717 int 4718 iscsi_get_param(iscsi_login_params_t *params, boolean_t valid_flag, 4719 iscsi_param_get_t *ipgp) { 4720 int rtn = 0; 4721 4722 /* ---- Default to settable, possibly changed later ---- */ 4723 ipgp->g_value.v_valid = valid_flag; 4724 ipgp->g_value.v_settable = B_TRUE; 4725 4726 switch (ipgp->g_param) { 4727 /* 4728 * Boolean parameters 4729 */ 4730 case ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER: 4731 ipgp->g_value.v_bool.b_current = 4732 params->data_sequence_in_order; 4733 ipgp->g_value.v_bool.b_default = 4734 ISCSI_DEFAULT_DATA_SEQUENCE_IN_ORDER; 4735 break; 4736 case ISCSI_LOGIN_PARAM_IMMEDIATE_DATA: 4737 ipgp->g_value.v_bool.b_current = 4738 params->immediate_data; 4739 ipgp->g_value.v_bool.b_default = 4740 ISCSI_DEFAULT_IMMEDIATE_DATA; 4741 break; 4742 case ISCSI_LOGIN_PARAM_INITIAL_R2T: 4743 ipgp->g_value.v_bool.b_current = 4744 params->initial_r2t; 4745 ipgp->g_value.v_bool.b_default = 4746 ISCSI_DEFAULT_IMMEDIATE_DATA; 4747 break; 4748 case ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER: 4749 ipgp->g_value.v_bool.b_current = 4750 params->data_pdu_in_order; 4751 ipgp->g_value.v_bool.b_default = 4752 ISCSI_DEFAULT_DATA_PDU_IN_ORDER; 4753 break; 4754 4755 /* 4756 * Integer parameters 4757 */ 4758 case ISCSI_LOGIN_PARAM_HEADER_DIGEST: 4759 ipgp->g_value.v_integer.i_current = params->header_digest; 4760 ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_HEADER_DIGEST; 4761 ipgp->g_value.v_integer.i_min = 0; 4762 ipgp->g_value.v_integer.i_max = ISCSI_MAX_HEADER_DIGEST; 4763 ipgp->g_value.v_integer.i_incr = 1; 4764 break; 4765 case ISCSI_LOGIN_PARAM_DATA_DIGEST: 4766 ipgp->g_value.v_integer.i_current = params->data_digest; 4767 ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_DATA_DIGEST; 4768 ipgp->g_value.v_integer.i_min = 0; 4769 ipgp->g_value.v_integer.i_max = ISCSI_MAX_DATA_DIGEST; 4770 ipgp->g_value.v_integer.i_incr = 1; 4771 break; 4772 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN: 4773 ipgp->g_value.v_integer.i_current = 4774 params->default_time_to_retain; 4775 ipgp->g_value.v_integer.i_default = 4776 ISCSI_DEFAULT_TIME_TO_RETAIN; 4777 ipgp->g_value.v_integer.i_min = 0; 4778 ipgp->g_value.v_integer.i_max = ISCSI_MAX_TIME2RETAIN; 4779 ipgp->g_value.v_integer.i_incr = 1; 4780 break; 4781 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT: 4782 ipgp->g_value.v_integer.i_current = 4783 params->default_time_to_wait; 4784 ipgp->g_value.v_integer.i_default = 4785 ISCSI_DEFAULT_TIME_TO_WAIT; 4786 ipgp->g_value.v_integer.i_min = 0; 4787 ipgp->g_value.v_integer.i_max = ISCSI_MAX_TIME2WAIT; 4788 ipgp->g_value.v_integer.i_incr = 1; 4789 break; 4790 case ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL: 4791 ipgp->g_value.v_integer.i_current = 4792 params->error_recovery_level; 4793 ipgp->g_value.v_integer.i_default = 4794 ISCSI_DEFAULT_ERROR_RECOVERY_LEVEL; 4795 ipgp->g_value.v_integer.i_min = 0; 4796 ipgp->g_value.v_integer.i_max = ISCSI_MAX_ERROR_RECOVERY_LEVEL; 4797 ipgp->g_value.v_integer.i_incr = 1; 4798 ipgp->g_value.v_settable = B_FALSE; 4799 break; 4800 case ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH: 4801 ipgp->g_value.v_integer.i_current = 4802 params->first_burst_length; 4803 ipgp->g_value.v_integer.i_default = 4804 ISCSI_DEFAULT_FIRST_BURST_LENGTH; 4805 ipgp->g_value.v_integer.i_min = 512; 4806 ipgp->g_value.v_integer.i_max = ISCSI_MAX_FIRST_BURST_LENGTH; 4807 ipgp->g_value.v_integer.i_incr = 1; 4808 break; 4809 case ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH: 4810 ipgp->g_value.v_integer.i_current = 4811 params->max_burst_length; 4812 ipgp->g_value.v_integer.i_default = 4813 ISCSI_DEFAULT_MAX_BURST_LENGTH; 4814 ipgp->g_value.v_integer.i_min = 512; 4815 ipgp->g_value.v_integer.i_max = ISCSI_MAX_BURST_LENGTH; 4816 ipgp->g_value.v_integer.i_incr = 1; 4817 break; 4818 case ISCSI_LOGIN_PARAM_MAX_CONNECTIONS: 4819 ipgp->g_value.v_integer.i_current = 4820 params->max_connections; 4821 ipgp->g_value.v_settable = B_FALSE; 4822 ipgp->g_value.v_integer.i_default = 4823 ISCSI_DEFAULT_MAX_CONNECTIONS; 4824 ipgp->g_value.v_integer.i_min = 1; 4825 ipgp->g_value.v_integer.i_max = ISCSI_MAX_CONNECTIONS; 4826 ipgp->g_value.v_integer.i_incr = 1; 4827 break; 4828 case ISCSI_LOGIN_PARAM_OUTSTANDING_R2T: 4829 ipgp->g_value.v_integer.i_current = 4830 params->max_outstanding_r2t; 4831 ipgp->g_value.v_settable = B_FALSE; 4832 ipgp->g_value.v_integer.i_default = 4833 ISCSI_DEFAULT_MAX_OUT_R2T; 4834 ipgp->g_value.v_integer.i_min = 1; 4835 ipgp->g_value.v_integer.i_max = ISCSI_MAX_OUTSTANDING_R2T; 4836 ipgp->g_value.v_integer.i_incr = 1; 4837 break; 4838 case ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH: 4839 ipgp->g_value.v_integer.i_current = 4840 params->max_recv_data_seg_len; 4841 ipgp->g_value.v_integer.i_default = 4842 ISCSI_DEFAULT_MAX_RECV_SEG_LEN; 4843 ipgp->g_value.v_integer.i_min = 512; 4844 ipgp->g_value.v_integer.i_max = 4845 ISCSI_MAX_RECV_DATA_SEGMENT_LENGTH; 4846 ipgp->g_value.v_integer.i_incr = 1; 4847 break; 4848 default: 4849 rtn = EINVAL; 4850 } 4851 4852 return (rtn); 4853 } 4854 4855 /* 4856 * +--------------------------------------------------------------------+ 4857 * | End of ioctl utility routines | 4858 * +--------------------------------------------------------------------+ 4859 */ 4860 4861 /* 4862 * iscsi_get_name_from_iqn - Translates a normal iqn/eui into a 4863 * IEEE safe address. IEEE addresses have a number of characters 4864 * set aside as reserved. 4865 */ 4866 static void 4867 iscsi_get_name_from_iqn(char *name, int name_max_len) 4868 { 4869 char *tmp = NULL; 4870 char *oldch = NULL; 4871 char *newch = NULL; 4872 4873 tmp = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); 4874 4875 for (oldch = &name[0], newch = &tmp[0]; *oldch != '\0'; 4876 oldch++, newch++) { 4877 switch (*oldch) { 4878 case ':': 4879 *newch++ = '%'; 4880 *newch++ = '3'; 4881 *newch = 'A'; 4882 break; 4883 case ' ': 4884 *newch++ = '%'; 4885 *newch++ = '2'; 4886 *newch = '0'; 4887 break; 4888 case '@': 4889 *newch++ = '%'; 4890 *newch++ = '4'; 4891 *newch = '0'; 4892 break; 4893 case '/': 4894 *newch++ = '%'; 4895 *newch++ = '2'; 4896 *newch = 'F'; 4897 break; 4898 default: 4899 *newch = *oldch; 4900 } 4901 } 4902 (void) strncpy(name, tmp, name_max_len); 4903 kmem_free(tmp, MAX_GET_NAME_SIZE); 4904 } 4905 4906 /* 4907 * iscsi_get_name_to_iqn - Converts IEEE safe address back 4908 * into a iscsi iqn/eui. 4909 */ 4910 static void 4911 iscsi_get_name_to_iqn(char *name, int name_max_len) 4912 { 4913 char *tmp = NULL; 4914 char *oldch = NULL; 4915 char *newch = NULL; 4916 4917 tmp = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); 4918 4919 for (oldch = &name[0], newch = &tmp[0]; *oldch != '\0'; 4920 oldch++, newch++) { 4921 if (*oldch == '%') { 4922 switch (*(oldch+1)) { 4923 case '2': 4924 if (*(oldch+2) == '0') { 4925 *newch = ' '; 4926 oldch += 2; 4927 } else if (*(oldch+2) == 'F') { 4928 *newch = '/'; 4929 oldch += 2; 4930 } else { 4931 *newch = *oldch; 4932 } 4933 break; 4934 case '3': 4935 if (*(oldch+2) == 'A') { 4936 *newch = ':'; 4937 oldch += 2; 4938 } else { 4939 *newch = *oldch; 4940 } 4941 break; 4942 case '4': 4943 if (*(oldch+2) == '0') { 4944 *newch = '@'; 4945 oldch += 2; 4946 } else { 4947 *newch = *oldch; 4948 } 4949 break; 4950 default: 4951 *newch = *oldch; 4952 } 4953 } else { 4954 *newch = *oldch; 4955 } 4956 } 4957 (void) strncpy(name, tmp, name_max_len); 4958 kmem_free(tmp, MAX_GET_NAME_SIZE); 4959 } 4960 4961 /* 4962 * iscsi_get_persisted_param * - a helper to ISCSI_GET_PARAM ioctl 4963 * 4964 * On return 0 means persisted parameter found 4965 */ 4966 int 4967 iscsi_get_persisted_param(uchar_t *name, iscsi_param_get_t *ipgp, 4968 iscsi_login_params_t *params) 4969 { 4970 int rtn = 1; 4971 persistent_param_t *pparam; 4972 4973 if (name == NULL || strlen((char *)name) == 0) { 4974 return (rtn); 4975 } 4976 4977 pparam = (persistent_param_t *)kmem_zalloc(sizeof (*pparam), KM_SLEEP); 4978 4979 if (persistent_param_get((char *)name, pparam) == B_TRUE) { 4980 if (pparam->p_bitmap & (1 << ipgp->g_param)) { 4981 /* Found configured parameter. */ 4982 bcopy(&pparam->p_params, params, sizeof (*params)); 4983 rtn = 0; 4984 } 4985 } 4986 4987 kmem_free(pparam, sizeof (*pparam)); 4988 4989 return (rtn); 4990 } 4991 4992 /* 4993 * iscsi_override_target_default - helper function set the target's default 4994 * login parameter if there is a configured initiator parameter. 4995 * 4996 */ 4997 static void 4998 iscsi_override_target_default(iscsi_hba_t *ihp, iscsi_param_get_t *ipg) 4999 { 5000 persistent_param_t *pp; 5001 iscsi_login_params_t *params; 5002 5003 pp = (persistent_param_t *)kmem_zalloc(sizeof (*pp), KM_SLEEP); 5004 if (persistent_param_get((char *)ihp->hba_name, pp) == B_TRUE) { 5005 if (pp->p_bitmap & (1 << ipg->g_param)) { 5006 params = &pp->p_params; 5007 switch (ipg->g_param) { 5008 case ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER: 5009 ipg->g_value.v_bool.b_default = 5010 params->data_sequence_in_order; 5011 break; 5012 case ISCSI_LOGIN_PARAM_IMMEDIATE_DATA: 5013 ipg->g_value.v_bool.b_default = 5014 params->immediate_data; 5015 break; 5016 case ISCSI_LOGIN_PARAM_INITIAL_R2T: 5017 ipg->g_value.v_bool.b_default = 5018 params->initial_r2t; 5019 break; 5020 case ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER: 5021 ipg->g_value.v_bool.b_default = 5022 params->data_pdu_in_order; 5023 break; 5024 case ISCSI_LOGIN_PARAM_HEADER_DIGEST: 5025 ipg->g_value.v_integer.i_default = 5026 params->header_digest; 5027 break; 5028 case ISCSI_LOGIN_PARAM_DATA_DIGEST: 5029 ipg->g_value.v_integer.i_default = 5030 params->data_digest; 5031 break; 5032 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN: 5033 ipg->g_value.v_integer.i_default = 5034 params->default_time_to_retain; 5035 break; 5036 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT: 5037 ipg->g_value.v_integer.i_default = 5038 params->default_time_to_wait; 5039 break; 5040 case ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL: 5041 ipg->g_value.v_integer.i_default = 5042 params->error_recovery_level; 5043 break; 5044 case ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH: 5045 ipg->g_value.v_integer.i_default = 5046 params->first_burst_length; 5047 break; 5048 case ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH: 5049 ipg->g_value.v_integer.i_default = 5050 params->max_burst_length; 5051 break; 5052 case ISCSI_LOGIN_PARAM_MAX_CONNECTIONS: 5053 ipg->g_value.v_integer.i_default = 5054 params->max_connections; 5055 break; 5056 case ISCSI_LOGIN_PARAM_OUTSTANDING_R2T: 5057 ipg->g_value.v_integer.i_default = 5058 params->max_outstanding_r2t; 5059 break; 5060 case ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH: 5061 ipg->g_value.v_integer.i_default = 5062 params->max_xmit_data_seg_len; 5063 break; 5064 default: 5065 break; 5066 } 5067 } 5068 } 5069 kmem_free(pp, sizeof (*pp)); 5070 } 5071 5072 static boolean_t 5073 iscsi_cmp_boot_sess_oid(iscsi_hba_t *ihp, uint32_t oid) 5074 { 5075 iscsi_sess_t *isp = NULL; 5076 5077 if (iscsi_chk_bootlun_mpxio(ihp)) { 5078 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 5079 if ((isp->sess_oid == oid) && isp->sess_boot) { 5080 /* oid is session object */ 5081 break; 5082 } 5083 if ((isp->sess_target_oid == oid) && isp->sess_boot) { 5084 /* 5085 * oid is target object while 5086 * this session is boot session 5087 */ 5088 break; 5089 } 5090 } 5091 if (oid == ihp->hba_oid) { 5092 /* oid is initiator object id */ 5093 return (B_TRUE); 5094 } else if ((isp != NULL) && (isp->sess_boot)) { 5095 /* oid is boot session object id */ 5096 return (B_TRUE); 5097 } 5098 } 5099 return (B_FALSE); 5100 } 5101 5102 /* 5103 * iscsi_client_request_service - request the iSCSI service 5104 * returns true if the service is enabled and increases the count 5105 * returns false if the service is disabled 5106 * blocks until the service status is either enabled or disabled 5107 */ 5108 boolean_t 5109 iscsi_client_request_service(iscsi_hba_t *ihp) { 5110 boolean_t rval = B_TRUE; 5111 5112 mutex_enter(&ihp->hba_service_lock); 5113 while ((ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) || 5114 (ihp->hba_service_client_count == UINT_MAX)) { 5115 cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); 5116 } 5117 if (ihp->hba_service_status == ISCSI_SERVICE_ENABLED) { 5118 ihp->hba_service_client_count++; 5119 } else { 5120 rval = B_FALSE; 5121 } 5122 mutex_exit(&ihp->hba_service_lock); 5123 5124 return (rval); 5125 } 5126 5127 /* 5128 * iscsi_client_release_service - decrease the count and wake up 5129 * blocking threads if the count reaches zero 5130 */ 5131 void 5132 iscsi_client_release_service(iscsi_hba_t *ihp) { 5133 mutex_enter(&ihp->hba_service_lock); 5134 ASSERT(ihp->hba_service_client_count > 0); 5135 ihp->hba_service_client_count--; 5136 if (ihp->hba_service_client_count == 0) { 5137 cv_broadcast(&ihp->hba_service_cv); 5138 } 5139 mutex_exit(&ihp->hba_service_lock); 5140 } 5141 5142 /* 5143 * iscsi_enter_service_zone - enter the service zone, should be called 5144 * before doing any modifications to the service status 5145 * return TRUE if the zone is entered 5146 * FALSE if no need to enter the zone 5147 */ 5148 static boolean_t 5149 iscsi_enter_service_zone(iscsi_hba_t *ihp, uint32_t status) { 5150 if ((status != ISCSI_SERVICE_ENABLED) && 5151 (status != ISCSI_SERVICE_DISABLED)) { 5152 return (B_FALSE); 5153 } 5154 5155 mutex_enter(&ihp->hba_service_lock); 5156 while (ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) { 5157 cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); 5158 } 5159 if (ihp->hba_service_status == status) { 5160 mutex_exit(&ihp->hba_service_lock); 5161 return (B_FALSE); 5162 } 5163 ihp->hba_service_status = ISCSI_SERVICE_TRANSITION; 5164 while (ihp->hba_service_client_count > 0) { 5165 cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); 5166 } 5167 mutex_exit(&ihp->hba_service_lock); 5168 return (B_TRUE); 5169 } 5170 5171 /* 5172 * iscsi_exit_service_zone - exits the service zone and wakes up waiters 5173 */ 5174 static void 5175 iscsi_exit_service_zone(iscsi_hba_t *ihp, uint32_t status) { 5176 if ((status != ISCSI_SERVICE_ENABLED) && 5177 (status != ISCSI_SERVICE_DISABLED)) { 5178 return; 5179 } 5180 5181 mutex_enter(&ihp->hba_service_lock); 5182 ASSERT(ihp->hba_service_status == ISCSI_SERVICE_TRANSITION); 5183 ihp->hba_service_status = status; 5184 cv_broadcast(&ihp->hba_service_cv); 5185 mutex_exit(&ihp->hba_service_lock); 5186 } 5187 5188 static void 5189 iscsi_check_miniroot(iscsi_hba_t *ihp) { 5190 if (strncmp(rootfs.bo_name, "/ramdisk", 8) == 0) { 5191 /* 5192 * in miniroot we don't have the persistent store 5193 * so just to need to ensure an enabled status 5194 */ 5195 ihp->hba_service_status = ISCSI_SERVICE_ENABLED; 5196 } 5197 } 5198