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 #define ISCSI_DISC_DELAY 2 /* seconds */ 53 54 /* 55 * +--------------------------------------------------------------------+ 56 * | iscsi globals | 57 * +--------------------------------------------------------------------+ 58 */ 59 void *iscsi_state; 60 kmutex_t iscsi_oid_mutex; 61 uint32_t iscsi_oid; 62 int iscsi_nop_delay = ISCSI_DEFAULT_NOP_DELAY; 63 int iscsi_rx_window = ISCSI_DEFAULT_RX_WINDOW; 64 int iscsi_rx_max_window = ISCSI_DEFAULT_RX_MAX_WINDOW; 65 boolean_t iscsi_logging = B_FALSE; 66 67 extern ib_boot_prop_t *iscsiboot_prop; 68 extern int modrootloaded; 69 extern struct bootobj rootfs; 70 71 /* 72 * +--------------------------------------------------------------------+ 73 * | iscsi.c prototypes | 74 * +--------------------------------------------------------------------+ 75 */ 76 static int iscsi_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, 77 void *arg, void **result); 78 static int iscsi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd); 79 static int iscsi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd); 80 81 /* scsi_tran prototypes */ 82 static int iscsi_tran_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 83 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 84 static int iscsi_tran_lun_probe(struct scsi_device *sd, int (*callback) ()); 85 static struct scsi_pkt *iscsi_tran_init_pkt(struct scsi_address *ap, 86 struct scsi_pkt *pkt, struct buf *bp, int cmdlen, int statuslen, 87 int tgtlen, int flags, int (*callback) (), caddr_t arg); 88 static void iscsi_tran_lun_free(dev_info_t *hba_dip, dev_info_t *lun_dip, 89 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 90 static int iscsi_tran_start(struct scsi_address *ap, struct scsi_pkt *pkt); 91 static int iscsi_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt); 92 static int iscsi_tran_reset(struct scsi_address *ap, int level); 93 static int iscsi_tran_getcap(struct scsi_address *ap, char *cap, int whom); 94 static int iscsi_tran_setcap(struct scsi_address *ap, char *cap, 95 int value, int whom); 96 static void iscsi_tran_destroy_pkt(struct scsi_address *ap, 97 struct scsi_pkt *pkt); 98 static void iscsi_tran_dmafree(struct scsi_address *ap, 99 struct scsi_pkt *pkt); 100 static void iscsi_tran_sync_pkt(struct scsi_address *ap, 101 struct scsi_pkt *pkt); 102 static void iscsi_tran_sync_pkt(struct scsi_address *ap, 103 struct scsi_pkt *pkt); 104 static int iscsi_tran_reset_notify(struct scsi_address *ap, int flag, 105 void (*callback) (caddr_t), caddr_t arg); 106 static int iscsi_tran_bus_config(dev_info_t *parent, uint_t flags, 107 ddi_bus_config_op_t op, void *arg, dev_info_t **childp); 108 static int iscsi_tran_bus_unconfig(dev_info_t *parent, uint_t flags, 109 ddi_bus_config_op_t op, void *arg); 110 static int iscsi_tran_get_name(struct scsi_device *sd, char *name, int len); 111 static int iscsi_tran_get_bus_addr(struct scsi_device *sd, char *name, int len); 112 113 /* bus_ops prototypes */ 114 /* LINTED E_STATIC_UNUSED */ 115 static ddi_intrspec_t iscsi_get_intrspec(dev_info_t *dip, dev_info_t *rdip, 116 uint_t inumber); 117 /* LINTED E_STATIC_UNUSED */ 118 static int iscsi_add_intrspec(dev_info_t *dip, dev_info_t *rdip, 119 ddi_intrspec_t intrspec, ddi_iblock_cookie_t *iblock_cookiep, 120 ddi_idevice_cookie_t *idevice_cookiep, uint_t (*int_handler)(caddr_t 121 int_handler_arg), caddr_t int_handler_arg, int kind); 122 /* LINTED E_STATIC_UNUSED */ 123 static void iscsi_remove_intrspec(dev_info_t *dip, dev_info_t *rdip, 124 ddi_intrspec_t intrspec, ddi_iblock_cookie_t iblock_cookie); 125 /* LINTED E_STATIC_UNUSED */ 126 static int iscsi_ctl(dev_info_t *dip, dev_info_t *rdip, ddi_ctl_enum_t ctlop, 127 void *arg, void *result); 128 129 /* cb_ops prototypes */ 130 static int iscsi_open(dev_t *devp, int flags, int otyp, cred_t *credp); 131 static int iscsi_close(dev_t dev, int flag, int otyp, cred_t *credp); 132 static int iscsi_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 133 cred_t *credp, int *rvalp); 134 135 int iscsi_get_persisted_param(uchar_t *name, 136 iscsi_param_get_t *ipgp, 137 iscsi_login_params_t *params); 138 static void iscsi_override_target_default(iscsi_hba_t *ihp, 139 iscsi_param_get_t *ipg); 140 141 /* scsi_tran helpers */ 142 static int iscsi_virt_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 143 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 144 static int iscsi_phys_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 145 scsi_hba_tran_t *hba_tran, struct scsi_device *sd); 146 static int iscsi_i_commoncap(struct scsi_address *ap, char *cap, 147 int val, int lunonly, int doset); 148 static void iscsi_get_name_to_iqn(char *name, int name_max_len); 149 static void iscsi_get_name_from_iqn(char *name, int name_max_len); 150 static boolean_t iscsi_cmp_boot_sess_oid(iscsi_hba_t *ihp, uint32_t oid); 151 152 /* iscsi initiator service helpers */ 153 static boolean_t iscsi_enter_service_zone(iscsi_hba_t *ihp, uint32_t status); 154 static void iscsi_exit_service_zone(iscsi_hba_t *ihp, uint32_t status); 155 static void iscsi_check_miniroot(iscsi_hba_t *ihp); 156 static void iscsi_get_tunable_default(iscsi_tunable_object_t *param); 157 static int iscsi_get_persisted_tunable_param(uchar_t *name, 158 iscsi_tunable_object_t *tpsg); 159 static void iscsi_set_default_tunable_params(iscsi_tunable_params_t *params); 160 161 /* struct helpers prototypes */ 162 163 /* 164 * At this point this driver doesn't need this structure because nothing 165 * is done during the open, close or ioctl. Code put in place because 166 * some admin related work might be done in the ioctl routine. 167 */ 168 static struct cb_ops iscsi_cb_ops = { 169 iscsi_open, /* open */ 170 iscsi_close, /* close */ 171 nodev, /* strategy */ 172 nodev, /* print */ 173 nodev, /* dump */ 174 nodev, /* read */ 175 nodev, /* write */ 176 iscsi_ioctl, /* ioctl */ 177 nodev, /* devmap */ 178 nodev, /* mmap */ 179 nodev, /* segmap */ 180 nochpoll, /* poll */ 181 ddi_prop_op, /* prop_op */ 182 NULL, /* streamtab */ 183 D_NEW | D_MP | D_HOTPLUG, /* flags */ 184 CB_REV, /* cb_rev */ 185 nodev, /* aread */ 186 nodev, /* awrite */ 187 }; 188 189 static struct dev_ops iscsi_dev_ops = { 190 DEVO_REV, /* devo_rev */ 191 0, /* refcnt */ 192 iscsi_getinfo, /* getinfo */ 193 nulldev, /* identify */ 194 nulldev, /* probe */ 195 iscsi_attach, /* attach */ 196 iscsi_detach, /* detach */ 197 nodev, /* reset */ 198 &iscsi_cb_ops, /* driver operations */ 199 NULL, /* bus ops */ 200 NULL, /* power management */ 201 ddi_quiesce_not_needed, /* quiesce */ 202 }; 203 204 static struct modldrv modldrv = { 205 &mod_driverops, /* drv_modops */ 206 ISCSI_NAME_VERSION, /* drv_linkinfo */ 207 &iscsi_dev_ops /* drv_dev_ops */ 208 }; 209 210 static struct modlinkage modlinkage = { 211 MODREV_1, /* ml_rev */ 212 &modldrv, /* ml_linkage[] */ 213 NULL /* NULL termination */ 214 }; 215 216 /* 217 * This structure is bogus. scsi_hba_attach_setup() requires, as in the kernel 218 * will panic if you don't pass this in to the routine, this information. 219 * Need to determine what the actual impact to the system is by providing 220 * this information if any. Since dma allocation is done in pkt_init it may 221 * not have any impact. These values are straight from the Writing Device 222 * Driver manual. 223 */ 224 static ddi_dma_attr_t iscsi_dma_attr = { 225 DMA_ATTR_V0, /* ddi_dma_attr version */ 226 0, /* low address */ 227 0xffffffff, /* high address */ 228 0x00ffffff, /* counter upper bound */ 229 1, /* alignment requirements */ 230 0x3f, /* burst sizes */ 231 1, /* minimum DMA access */ 232 0xffffffff, /* maximum DMA access */ 233 (1 << 24) - 1, /* segment boundary restrictions */ 234 1, /* scater/gather list length */ 235 512, /* device granularity */ 236 0 /* DMA flags */ 237 }; 238 239 /* 240 * _init - General driver init entry 241 */ 242 int 243 _init(void) 244 { 245 int rval = 0; 246 247 iscsi_net_init(); 248 249 mutex_init(&iscsi_oid_mutex, NULL, MUTEX_DRIVER, NULL); 250 iscsi_oid = ISCSI_INITIATOR_OID; 251 252 /* 253 * Set up the soft state structures. If this driver is actually 254 * being attached to the system then we'll have at least one 255 * HBA/NIC used. 256 */ 257 rval = ddi_soft_state_init(&iscsi_state, 258 sizeof (iscsi_hba_t), 1); 259 if (rval != 0) { 260 iscsi_net_fini(); 261 goto init_done; 262 } 263 264 rval = scsi_hba_init(&modlinkage); 265 if (rval != 0) { 266 ddi_soft_state_fini(&iscsi_state); 267 iscsi_net_fini(); 268 goto init_done; 269 } 270 271 rval = mod_install(&modlinkage); 272 if (rval != 0) { 273 ddi_soft_state_fini(&iscsi_state); 274 scsi_hba_fini(&modlinkage); 275 iscsi_net_fini(); 276 goto init_done; 277 } 278 (void) iscsi_door_ini(); 279 280 init_done: 281 return (rval); 282 } 283 284 /* 285 * _fini - General driver destructor entry 286 */ 287 int 288 _fini(void) 289 { 290 int rval = 0; 291 292 rval = mod_remove(&modlinkage); 293 if (rval == 0) { 294 scsi_hba_fini(&modlinkage); 295 ddi_soft_state_fini(&iscsi_state); 296 mutex_destroy(&iscsi_oid_mutex); 297 (void) iscsi_door_term(); 298 iscsi_net_fini(); 299 } 300 return (rval); 301 } 302 303 /* 304 * _info - General driver info entry 305 */ 306 int 307 _info(struct modinfo *mp) 308 { 309 int rval = 0; 310 311 rval = mod_info(&modlinkage, mp); 312 313 return (rval); 314 } 315 316 317 /* 318 * +--------------------------------------------------------------------+ 319 * | Start of dev_ops routines | 320 * +--------------------------------------------------------------------+ 321 */ 322 323 /* 324 * iscsi_getinfo - returns general driver information 325 */ 326 /* ARGSUSED */ 327 static int 328 iscsi_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, 329 void *arg, void **result) 330 { 331 int rval = DDI_SUCCESS; 332 int instance = getminor((dev_t)arg); 333 iscsi_hba_t *ip; 334 335 switch (infocmd) { 336 case DDI_INFO_DEVT2DEVINFO: 337 if ((ip = ddi_get_soft_state(iscsi_state, instance)) == NULL) { 338 return (DDI_FAILURE); 339 } 340 *result = ip->hba_dip; 341 if (ip->hba_dip == NULL) 342 rval = DDI_FAILURE; 343 else 344 rval = DDI_SUCCESS; 345 break; 346 347 case DDI_INFO_DEVT2INSTANCE: 348 *result = (void *)(uintptr_t)instance; 349 rval = DDI_SUCCESS; 350 break; 351 352 default: 353 rval = DDI_FAILURE; 354 break; 355 } 356 return (rval); 357 } 358 359 360 /* 361 * iscsi_attach -- Attach instance of an iSCSI HBA. We 362 * will attempt to create our HBA and register it with 363 * scsi_vhci. If it's not possible to create the HBA 364 * or register with vhci we will fail the attach. 365 */ 366 static int 367 iscsi_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 368 { 369 int rval = DDI_SUCCESS; 370 int instance = ddi_get_instance(dip); 371 iscsi_hba_t *ihp = NULL; 372 scsi_hba_tran_t *tran = NULL; 373 char init_port_name[MAX_NAME_PROP_SIZE]; 374 375 switch (cmd) { 376 case DDI_ATTACH: 377 /* create iSCSH HBA devctl device node */ 378 if (ddi_create_minor_node(dip, ISCSI_DEVCTL, S_IFCHR, 0, 379 DDI_PSEUDO, 0) == DDI_SUCCESS) { 380 381 /* allocate HBA soft state */ 382 if (ddi_soft_state_zalloc(iscsi_state, instance) != 383 DDI_SUCCESS) { 384 ddi_remove_minor_node(dip, NULL); 385 rval = DDI_FAILURE; 386 break; 387 } 388 389 /* get reference to soft state */ 390 if ((ihp = (iscsi_hba_t *)ddi_get_soft_state( 391 iscsi_state, instance)) == NULL) { 392 ddi_remove_minor_node(dip, NULL); 393 ddi_soft_state_free(iscsi_state, instance); 394 rval = DDI_FAILURE; 395 break; 396 } 397 398 /* init HBA mutex used to protect discovery events */ 399 mutex_init(&ihp->hba_discovery_events_mutex, NULL, 400 MUTEX_DRIVER, NULL); 401 402 /* Get LDI ident */ 403 rval = ldi_ident_from_dip(dip, &ihp->hba_li); 404 ASSERT(rval == 0); /* Failure indicates invalid arg */ 405 406 /* init HBA mutex used to protect service status */ 407 mutex_init(&ihp->hba_service_lock, NULL, 408 MUTEX_DRIVER, NULL); 409 cv_init(&ihp->hba_service_cv, NULL, CV_DRIVER, NULL); 410 411 /* 412 * init SendTargets semaphore that is used to allow 413 * only one operation at a time 414 */ 415 sema_init(&ihp->hba_sendtgts_semaphore, 1, NULL, 416 SEMA_DRIVER, NULL); 417 418 ihp->hba_sess_list = NULL; 419 rw_init(&ihp->hba_sess_list_rwlock, NULL, 420 RW_DRIVER, NULL); 421 422 /* allocate scsi_hba_tran */ 423 if ((tran = scsi_hba_tran_alloc(dip, SCSI_HBA_CANSLEEP)) 424 == NULL) { 425 ddi_remove_minor_node(dip, NULL); 426 goto iscsi_attach_failed2; 427 } 428 429 /* soft state setup */ 430 ihp->hba_sig = ISCSI_SIG_HBA; 431 ihp->hba_tran = tran; 432 ihp->hba_dip = dip; 433 if (iscsiboot_prop == NULL) { 434 ihp->hba_service_status = 435 ISCSI_SERVICE_DISABLED; 436 ihp->hba_service_status_overwrite = B_FALSE; 437 } else { 438 ihp->hba_service_status = 439 ISCSI_SERVICE_ENABLED; 440 ihp->hba_service_status_overwrite = B_TRUE; 441 } 442 ihp->hba_service_client_count = 0; 443 444 mutex_enter(&iscsi_oid_mutex); 445 ihp->hba_oid = iscsi_oid++; 446 mutex_exit(&iscsi_oid_mutex); 447 448 ihp->hba_name[0] = '\0'; 449 ihp->hba_name_length = 0; 450 ihp->hba_alias_length = 0; 451 ihp->hba_alias[0] = '\0'; 452 453 iscsi_net->tweaks.rcvbuf = ddi_prop_get_int( 454 DDI_DEV_T_ANY, ihp->hba_dip, 0, "so-rcvbuf", 455 ISCSI_SOCKET_RCVBUF_SIZE); 456 457 iscsi_net->tweaks.sndbuf = ddi_prop_get_int( 458 DDI_DEV_T_ANY, ihp->hba_dip, 0, "so-sndbuf", 459 ISCSI_SOCKET_SNDBUF_SIZE); 460 461 iscsi_net->tweaks.nodelay = ddi_prop_get_int( 462 DDI_DEV_T_ANY, ihp->hba_dip, 0, "tcp-nodelay", 463 ISCSI_TCP_NODELAY_DEFAULT); 464 465 iscsi_net->tweaks.conn_notify_threshold = 466 ddi_prop_get_int(DDI_DEV_T_ANY, 467 ihp->hba_dip, 0, "tcp-conn-notify-threshold", 468 ISCSI_TCP_CNOTIFY_THRESHOLD_DEFAULT); 469 470 iscsi_net->tweaks.conn_abort_threshold = 471 ddi_prop_get_int(DDI_DEV_T_ANY, ihp->hba_dip, 472 0, "tcp-conn-abort-threshold", 473 ISCSI_TCP_CABORT_THRESHOLD_DEFAULT); 474 475 iscsi_net->tweaks.abort_threshold = ddi_prop_get_int( 476 DDI_DEV_T_ANY, ihp->hba_dip, 0, 477 "tcp-abort-threshold", 478 ISCSI_TCP_ABORT_THRESHOLD_DEFAULT); 479 480 ihp->hba_config_storm_delay = ddi_prop_get_int( 481 DDI_DEV_T_ANY, ihp->hba_dip, 0, 482 "config-storm-delay", 483 ISCSI_CONFIG_STORM_DELAY_DEFAULT); 484 485 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 486 "so-rcvbuf", iscsi_net->tweaks.rcvbuf); 487 488 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 489 "so-sndbuf", iscsi_net->tweaks.sndbuf); 490 491 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 492 "tcp-nodelay", iscsi_net->tweaks.nodelay); 493 494 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 495 "tcp-conn-notify-threshold", 496 iscsi_net->tweaks.conn_notify_threshold); 497 498 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 499 "tcp-conn-abort-threshold", 500 iscsi_net->tweaks.conn_abort_threshold); 501 502 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 503 "tcp-abort-threshold", 504 iscsi_net->tweaks.abort_threshold); 505 506 (void) ddi_prop_update_int(DDI_DEV_T_NONE, ihp->hba_dip, 507 "config-storm-delay", 508 ihp->hba_config_storm_delay); 509 510 /* setup hba defaults */ 511 iscsi_set_default_login_params(&ihp->hba_params); 512 iscsi_set_default_tunable_params( 513 &ihp->hba_tunable_params); 514 515 /* setup minimal initiator params */ 516 iscsid_set_default_initiator_node_settings(ihp, B_TRUE); 517 518 /* hba set up */ 519 tran->tran_hba_private = ihp; 520 tran->tran_tgt_private = NULL; 521 tran->tran_tgt_init = iscsi_tran_lun_init; 522 tran->tran_tgt_probe = iscsi_tran_lun_probe; 523 tran->tran_tgt_free = iscsi_tran_lun_free; 524 tran->tran_start = iscsi_tran_start; 525 tran->tran_abort = iscsi_tran_abort; 526 tran->tran_reset = iscsi_tran_reset; 527 tran->tran_getcap = iscsi_tran_getcap; 528 tran->tran_setcap = iscsi_tran_setcap; 529 tran->tran_init_pkt = iscsi_tran_init_pkt; 530 tran->tran_destroy_pkt = iscsi_tran_destroy_pkt; 531 tran->tran_dmafree = iscsi_tran_dmafree; 532 tran->tran_sync_pkt = iscsi_tran_sync_pkt; 533 tran->tran_reset_notify = iscsi_tran_reset_notify; 534 tran->tran_bus_config = iscsi_tran_bus_config; 535 tran->tran_bus_unconfig = iscsi_tran_bus_unconfig; 536 537 tran->tran_get_name = iscsi_tran_get_name; 538 tran->tran_get_bus_addr = iscsi_tran_get_bus_addr; 539 tran->tran_interconnect_type = INTERCONNECT_ISCSI; 540 541 /* register scsi hba with scsa */ 542 if (scsi_hba_attach_setup(dip, &iscsi_dma_attr, 543 tran, SCSI_HBA_TRAN_CLONE) != DDI_SUCCESS) { 544 goto iscsi_attach_failed1; 545 } 546 547 /* register scsi hba with mdi (MPxIO/vhci) */ 548 if (mdi_phci_register(MDI_HCI_CLASS_SCSI, dip, 0) != 549 MDI_SUCCESS) { 550 ihp->hba_mpxio_enabled = B_FALSE; 551 } else { 552 ihp->hba_mpxio_enabled = B_TRUE; 553 } 554 555 (void) iscsi_hba_kstat_init(ihp); 556 557 /* Initialize targetparam list */ 558 iscsi_targetparam_init(); 559 560 /* Initialize ISID */ 561 ihp->hba_isid[0] = ISCSI_SUN_ISID_0; 562 ihp->hba_isid[1] = ISCSI_SUN_ISID_1; 563 ihp->hba_isid[2] = ISCSI_SUN_ISID_2; 564 ihp->hba_isid[3] = ISCSI_SUN_ISID_3; 565 ihp->hba_isid[4] = ISCSI_SUN_ISID_4; 566 ihp->hba_isid[5] = ISCSI_SUN_ISID_5; 567 568 /* Setup iSNS transport services and client */ 569 isns_client_init(); 570 571 /* 572 * initialize persistent store, 573 * or boot target info in case of iscsi boot 574 */ 575 ihp->hba_persistent_loaded = B_FALSE; 576 if (iscsid_init(ihp) == B_FALSE) { 577 goto iscsi_attach_failed0; 578 } 579 580 /* Setup init_port_name for MPAPI */ 581 (void) snprintf(init_port_name, MAX_NAME_PROP_SIZE, 582 "%s,%02x%02x%02x%02x%02x%02x", 583 (char *)ihp->hba_name, ihp->hba_isid[0], 584 ihp->hba_isid[1], ihp->hba_isid[2], 585 ihp->hba_isid[3], ihp->hba_isid[4], 586 ihp->hba_isid[5]); 587 588 if (ddi_prop_update_string(DDI_DEV_T_NONE, dip, 589 SCSI_ADDR_PROP_INITIATOR_PORT, init_port_name) != 590 DDI_PROP_SUCCESS) { 591 cmn_err(CE_WARN, "iscsi_attach: Creating " 592 SCSI_ADDR_PROP_INITIATOR_PORT 593 " property on iSCSI " 594 "HBA(%s) with dip(%d) Failed", 595 (char *)ihp->hba_name, 596 ddi_get_instance(dip)); 597 } 598 599 ddi_report_dev(dip); 600 } else { 601 rval = DDI_FAILURE; 602 } 603 break; 604 605 iscsi_attach_failed0: 606 isns_client_cleanup(); 607 if (ihp->stats.ks) { 608 (void) iscsi_hba_kstat_term(ihp); 609 } 610 if (ihp->hba_mpxio_enabled == B_TRUE) { 611 (void) mdi_phci_unregister(dip, 0); 612 } 613 (void) scsi_hba_detach(ihp->hba_dip); 614 iscsi_attach_failed1: 615 ddi_remove_minor_node(dip, NULL); 616 ddi_prop_remove_all(ihp->hba_dip); 617 scsi_hba_tran_free(tran); 618 iscsi_attach_failed2: 619 cv_destroy(&ihp->hba_service_cv); 620 mutex_destroy(&ihp->hba_service_lock); 621 mutex_destroy(&ihp->hba_discovery_events_mutex); 622 sema_destroy(&ihp->hba_sendtgts_semaphore); 623 rw_destroy(&ihp->hba_sess_list_rwlock); 624 ddi_soft_state_free(iscsi_state, instance); 625 rval = DDI_FAILURE; 626 break; 627 628 case DDI_RESUME: 629 break; 630 631 default: 632 rval = DDI_FAILURE; 633 } 634 635 if (rval != DDI_SUCCESS) { 636 cmn_err(CE_WARN, "iscsi driver unable to attach " 637 "hba instance %d", instance); 638 } 639 640 return (rval); 641 } 642 643 /* 644 * iscsi_detach - called on unload of hba instance 645 */ 646 static int 647 iscsi_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 648 { 649 int rval = DDI_SUCCESS; 650 scsi_hba_tran_t *tran = NULL; 651 iscsi_hba_t *ihp = NULL; 652 iscsi_hba_t *ihp_check = NULL; 653 int instance; 654 char *init_node_name; 655 656 instance = ddi_get_instance(dip); 657 658 switch (cmd) { 659 case DDI_DETACH: 660 if (!(tran = (scsi_hba_tran_t *)ddi_get_driver_private(dip))) { 661 rval = DDI_SUCCESS; 662 break; 663 } 664 665 if ((ihp = (iscsi_hba_t *)tran->tran_hba_private) == NULL) { 666 rval = DDI_FAILURE; 667 break; 668 } 669 670 /* 671 * Validate that what is stored by the DDI framework is still 672 * the same state structure referenced by the SCSI framework 673 */ 674 ihp_check = ddi_get_soft_state(iscsi_state, instance); 675 if (ihp_check != ihp) { 676 rval = DDI_FAILURE; 677 break; 678 } 679 680 /* If a session exists we can't safely detach */ 681 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 682 if (ihp->hba_sess_list != NULL) { 683 rw_exit(&ihp->hba_sess_list_rwlock); 684 rval = DDI_FAILURE; 685 break; 686 } 687 rw_exit(&ihp->hba_sess_list_rwlock); 688 689 /* Disable all discovery services */ 690 if (iscsid_disable_discovery(ihp, 691 ISCSI_ALL_DISCOVERY_METHODS) == B_FALSE) { 692 /* Disable failed. Fail detach */ 693 rval = DDI_FAILURE; 694 break; 695 } 696 697 /* Deregister from iSNS server(s). */ 698 init_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 699 if (persistent_initiator_name_get(init_node_name, 700 ISCSI_MAX_NAME_LEN) == B_TRUE) { 701 if (strlen(init_node_name) > 0) { 702 (void) isns_dereg(ihp->hba_isid, 703 (uint8_t *)init_node_name); 704 } 705 } 706 kmem_free(init_node_name, ISCSI_MAX_NAME_LEN); 707 init_node_name = NULL; 708 709 /* Cleanup iSNS Client */ 710 isns_client_cleanup(); 711 712 iscsi_targetparam_cleanup(); 713 714 /* Cleanup iscsid resources */ 715 iscsid_fini(); 716 717 if (rval != DDI_SUCCESS) { 718 break; 719 } 720 /* kstat hba. destroy */ 721 KSTAT_DEC_HBA_CNTR_SESS(ihp); 722 723 if (ihp->hba_mpxio_enabled == B_TRUE) { 724 (void) mdi_phci_unregister(dip, 0); 725 } 726 ddi_remove_minor_node(dip, NULL); 727 728 ddi_prop_remove_all(ihp->hba_dip); 729 730 ldi_ident_release(ihp->hba_li); 731 732 cv_destroy(&ihp->hba_service_cv); 733 mutex_destroy(&ihp->hba_service_lock); 734 mutex_destroy(&ihp->hba_discovery_events_mutex); 735 rw_destroy(&ihp->hba_sess_list_rwlock); 736 (void) iscsi_hba_kstat_term(ihp); 737 738 (void) scsi_hba_detach(dip); 739 if (tran != NULL) { 740 scsi_hba_tran_free(tran); 741 } 742 ddi_soft_state_free(iscsi_state, instance); 743 break; 744 default: 745 break; 746 } 747 748 if (rval != DDI_SUCCESS) { 749 cmn_err(CE_WARN, "iscsi driver unable to " 750 "detach hba instance %d", instance); 751 } 752 753 return (rval); 754 } 755 756 /* 757 * +--------------------------------------------------------------------+ 758 * | End of dev_ops routines | 759 * +--------------------------------------------------------------------+ 760 */ 761 762 /* 763 * +--------------------------------------------------------------------+ 764 * | scsi_tran(9E) routines | 765 * +--------------------------------------------------------------------+ 766 */ 767 768 /* 769 * iscsi_tran_lun_init - Find target device based on SCSI device 770 * Based on the information given (SCSI device, target dev_info) find 771 * the target iSCSI device and put a pointer to that information in 772 * the scsi_hba_tran_t structure. 773 */ 774 static int 775 iscsi_tran_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 776 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 777 { 778 int rval = 0; 779 int type = 0; 780 781 ASSERT(hba_tran->tran_hba_private != NULL); 782 783 /* 784 * Child node is getting initialized. Look at the mpxio component 785 * type on the child device to see if this device is mpxio managed 786 * or not. 787 */ 788 type = mdi_get_component_type(lun_dip); 789 if (type != MDI_COMPONENT_CLIENT) { 790 rval = iscsi_phys_lun_init(hba_dip, lun_dip, hba_tran, sd); 791 } else { 792 rval = iscsi_virt_lun_init(hba_dip, lun_dip, hba_tran, sd); 793 } 794 795 return (rval); 796 } 797 798 /* 799 * iscsi_tran_lun_probe - This function didn't need to be implemented. 800 * We could have left NULL in the tran table. Since this isn't a 801 * performance path this seems safe. We are just wrappering the 802 * function so we can see the call go through if we have debugging 803 * enabled. 804 */ 805 static int 806 iscsi_tran_lun_probe(struct scsi_device *sd, int (*callback) ()) 807 { 808 int rval = 0; 809 810 rval = scsi_hba_probe(sd, callback); 811 812 return (rval); 813 } 814 815 /* 816 * iscsi_init_pkt - Allocate SCSI packet and fill in required info. 817 */ 818 /* ARGSUSED */ 819 static struct scsi_pkt * 820 iscsi_tran_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt, 821 struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags, 822 int (*callback) (), caddr_t arg) 823 { 824 iscsi_lun_t *ilp; 825 iscsi_cmd_t *icmdp; 826 827 ASSERT(ap != NULL); 828 ASSERT(callback == NULL_FUNC || callback == SLEEP_FUNC); 829 830 /* 831 * The software stack doesn't have DMA which means the iSCSI 832 * protocol layer will be doing a bcopy from bp to outgoing 833 * streams buffers. Make sure that the buffer is mapped in 834 * so that the copy won't panic the system. 835 */ 836 if (bp && (bp->b_bcount != 0) && 837 bp_mapin_common(bp, (callback == NULL_FUNC) ? 838 VM_NOSLEEP : VM_SLEEP) == NULL) { 839 return (NULL); 840 } 841 842 ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; 843 ASSERT(ilp != NULL); 844 845 if (pkt == NULL) { 846 pkt = scsi_hba_pkt_alloc(ilp->lun_sess->sess_hba->hba_dip, 847 ap, cmdlen, statuslen, tgtlen, sizeof (iscsi_cmd_t), 848 callback, arg); 849 if (pkt == NULL) { 850 return (NULL); 851 } 852 icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; 853 icmdp->cmd_sig = ISCSI_SIG_CMD; 854 icmdp->cmd_state = ISCSI_CMD_STATE_FREE; 855 icmdp->cmd_lun = ilp; 856 icmdp->cmd_type = ISCSI_CMD_TYPE_SCSI; 857 /* add the report lun addressing type on to the lun */ 858 icmdp->cmd_un.scsi.lun = ilp->lun_addr_type << 14; 859 icmdp->cmd_un.scsi.lun = icmdp->cmd_un.scsi.lun | 860 ilp->lun_num; 861 icmdp->cmd_un.scsi.pkt = pkt; 862 icmdp->cmd_un.scsi.bp = bp; 863 icmdp->cmd_un.scsi.cmdlen = cmdlen; 864 icmdp->cmd_un.scsi.statuslen = statuslen; 865 icmdp->cmd_crc_error_seen = B_FALSE; 866 icmdp->cmd_misc_flags = 0; 867 if (flags & PKT_XARQ) { 868 icmdp->cmd_misc_flags |= ISCSI_CMD_MISCFLAG_XARQ; 869 } 870 871 872 idm_sm_audit_init(&icmdp->cmd_state_audit); 873 874 mutex_init(&icmdp->cmd_mutex, NULL, MUTEX_DRIVER, NULL); 875 cv_init(&icmdp->cmd_completion, NULL, CV_DRIVER, NULL); 876 877 pkt->pkt_address = *ap; 878 pkt->pkt_comp = (void (*)())NULL; 879 pkt->pkt_flags = 0; 880 pkt->pkt_time = 0; 881 pkt->pkt_resid = 0; 882 pkt->pkt_statistics = 0; 883 pkt->pkt_reason = 0; 884 } 885 return (pkt); 886 } 887 888 /* 889 * iscsi_tran_lun_free - Free a SCSI LUN 890 */ 891 static void 892 iscsi_tran_lun_free(dev_info_t *hba_dip, dev_info_t *lun_dip, 893 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 894 { 895 iscsi_lun_t *ilp = NULL; 896 897 ASSERT(hba_dip != NULL); 898 ASSERT(lun_dip != NULL); 899 ASSERT(hba_tran != NULL); 900 ASSERT(sd != NULL); 901 ilp = (iscsi_lun_t *)hba_tran->tran_tgt_private; 902 ASSERT(ilp != NULL); 903 904 (void) mdi_prop_remove(ilp->lun_pip, NULL); 905 } 906 907 /* 908 * iscsi_start -- Start a SCSI transaction based on the packet 909 * This will attempt to add the icmdp to the pending queue 910 * for the connection and kick the queue. If the enqueue 911 * fails that means the queue is full. 912 */ 913 static int 914 iscsi_tran_start(struct scsi_address *ap, struct scsi_pkt *pkt) 915 { 916 iscsi_lun_t *ilp = NULL; 917 iscsi_sess_t *isp = NULL; 918 iscsi_cmd_t *icmdp = NULL; 919 uint_t flags; 920 921 ASSERT(ap != NULL); 922 ASSERT(pkt != NULL); 923 ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; 924 isp = (iscsi_sess_t *)ilp->lun_sess; 925 icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; 926 flags = pkt->pkt_flags; 927 ASSERT(ilp != NULL); 928 ASSERT(isp != NULL); 929 ASSERT(icmdp != NULL); 930 931 /* 932 * If the session is in the FREE state then 933 * all connections are down and retries have 934 * been exhausted. Fail command with fatal error. 935 */ 936 mutex_enter(&isp->sess_state_mutex); 937 if (isp->sess_state == ISCSI_SESS_STATE_FREE) { 938 mutex_exit(&isp->sess_state_mutex); 939 return (TRAN_FATAL_ERROR); 940 } 941 942 /* 943 * If the session is not in LOGGED_IN then we have 944 * no connections LOGGED_IN, but we haven't exhuasted 945 * our retries. Fail the command with busy so the 946 * caller might try again later. Once retries are 947 * exhausted the state machine will move us to FREE. 948 */ 949 if (isp->sess_state != ISCSI_SESS_STATE_LOGGED_IN) { 950 mutex_exit(&isp->sess_state_mutex); 951 return (TRAN_BUSY); 952 } 953 954 /* 955 * If we haven't received data from the target in the 956 * max specified period something is wrong with the 957 * transport. Fail IO with FATAL_ERROR. 958 */ 959 if (isp->sess_rx_lbolt + SEC_TO_TICK(iscsi_rx_max_window) < 960 ddi_get_lbolt()) { 961 mutex_exit(&isp->sess_state_mutex); 962 return (TRAN_FATAL_ERROR); 963 } 964 965 /* 966 * If we haven't received data from the target in the 967 * specified period something is probably wrong with 968 * the transport. Just return back BUSY until either 969 * the problem is resolved of the transport fails. 970 */ 971 if (isp->sess_rx_lbolt + SEC_TO_TICK(iscsi_rx_window) < 972 ddi_get_lbolt()) { 973 mutex_exit(&isp->sess_state_mutex); 974 return (TRAN_BUSY); 975 } 976 977 978 /* reset cmd values in case upper level driver is retrying cmd */ 979 icmdp->cmd_prev = icmdp->cmd_next = NULL; 980 icmdp->cmd_crc_error_seen = B_FALSE; 981 icmdp->cmd_lbolt_pending = icmdp->cmd_lbolt_active = 982 icmdp->cmd_lbolt_aborting = icmdp->cmd_lbolt_timeout = 983 (clock_t)NULL; 984 icmdp->cmd_itt = icmdp->cmd_ttt = 0; 985 icmdp->cmd_un.scsi.abort_icmdp = NULL; 986 987 mutex_enter(&isp->sess_queue_pending.mutex); 988 iscsi_cmd_state_machine(icmdp, ISCSI_CMD_EVENT_E1, isp); 989 mutex_exit(&isp->sess_queue_pending.mutex); 990 mutex_exit(&isp->sess_state_mutex); 991 992 /* 993 * If this packet doesn't have FLAG_NOINTR set, it could have 994 * already run to completion (and the memory freed) at this 995 * point, so check our local copy of pkt_flags. Otherwise we 996 * have to wait for completion before returning to the caller. 997 */ 998 if (flags & FLAG_NOINTR) { 999 mutex_enter(&icmdp->cmd_mutex); 1000 while ((icmdp->cmd_state != ISCSI_CMD_STATE_COMPLETED) || 1001 (icmdp->cmd_un.scsi.r2t_icmdp != NULL) || 1002 (icmdp->cmd_un.scsi.abort_icmdp != NULL) || 1003 (icmdp->cmd_un.scsi.r2t_more == B_TRUE)) { 1004 cv_wait(&icmdp->cmd_completion, &icmdp->cmd_mutex); 1005 } 1006 icmdp->cmd_state = ISCSI_CMD_STATE_FREE; 1007 mutex_exit(&icmdp->cmd_mutex); 1008 } 1009 1010 return (TRAN_ACCEPT); 1011 } 1012 1013 /* 1014 * iscsi_tran_abort - Called when an upper level application 1015 * or driver wants to kill a scsi_pkt that was already sent to 1016 * this driver. 1017 */ 1018 /* ARGSUSED */ 1019 static int 1020 iscsi_tran_abort(struct scsi_address *ap, struct scsi_pkt *pkt) 1021 { 1022 return (0); 1023 } 1024 1025 /* 1026 * iscsi_tran_reset - Reset target at either BUS, TARGET, or LUN 1027 * level. This will require the issuing of a task management 1028 * command down to the target/lun. 1029 */ 1030 static int 1031 iscsi_tran_reset(struct scsi_address *ap, int level) 1032 { 1033 int rval = ISCSI_STATUS_INTERNAL_ERROR; 1034 iscsi_sess_t *isp = NULL; 1035 iscsi_lun_t *ilp = NULL; 1036 1037 ilp = (iscsi_lun_t *)ap->a_hba_tran->tran_tgt_private; 1038 ASSERT(ilp != NULL); 1039 isp = ilp->lun_sess; 1040 ASSERT(isp != NULL); 1041 1042 switch (level) { 1043 case RESET_LUN: 1044 /* reset attempt will block until attempt is complete */ 1045 rval = iscsi_handle_reset(isp, level, ilp); 1046 break; 1047 case RESET_BUS: 1048 /* 1049 * What are we going to realy reset the ethernet 1050 * network!? Just fall through to a target reset. 1051 */ 1052 case RESET_TARGET: 1053 /* reset attempt will block until attempt is complete */ 1054 rval = iscsi_handle_reset(isp, level, NULL); 1055 break; 1056 case RESET_ALL: 1057 default: 1058 break; 1059 } 1060 1061 return (ISCSI_SUCCESS(rval) ? 1 : 0); 1062 } 1063 1064 /* 1065 * iscsi_tran_getcap - Get target/lun capabilities. 1066 */ 1067 static int 1068 iscsi_tran_getcap(struct scsi_address *ap, char *cap, int whom) 1069 { 1070 return (iscsi_i_commoncap(ap, cap, 0, whom, 0)); 1071 } 1072 1073 1074 /* 1075 * iscsi_tran_setcap - Set target/lun capabilities. 1076 */ 1077 /* ARGSUSED */ 1078 static int 1079 iscsi_tran_setcap(struct scsi_address *ap, char *cap, int value, int whom) 1080 { 1081 return (iscsi_i_commoncap(ap, cap, value, whom, 1)); 1082 } 1083 1084 1085 /* 1086 * iscsi_tran_destroy_pkt - Clean up packet 1087 */ 1088 static void 1089 iscsi_tran_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) 1090 { 1091 iscsi_cmd_t *icmdp; 1092 1093 icmdp = (iscsi_cmd_t *)pkt->pkt_ha_private; 1094 1095 ASSERT(icmdp != NULL); 1096 ASSERT(icmdp->cmd_sig == ISCSI_SIG_CMD); 1097 ASSERT(icmdp->cmd_state == ISCSI_CMD_STATE_FREE); 1098 1099 mutex_destroy(&icmdp->cmd_mutex); 1100 cv_destroy(&icmdp->cmd_completion); 1101 scsi_hba_pkt_free(ap, pkt); 1102 } 1103 1104 /* 1105 * iscsi_tran_dmafree - This is a software driver, NO DMA 1106 */ 1107 /* ARGSUSED */ 1108 static void 1109 iscsi_tran_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt) 1110 { 1111 /* 1112 * The iSCSI interface doesn't deal with DMA 1113 */ 1114 } 1115 1116 /* 1117 * iscsi_tran_sync_pkt - This is a software driver, NO DMA 1118 */ 1119 /* ARGSUSED */ 1120 static void 1121 iscsi_tran_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt) 1122 { 1123 /* 1124 * The iSCSI interface doesn't deal with DMA 1125 */ 1126 } 1127 1128 /* 1129 * iscsi_tran_reset_notify - We don't support BUS_RESET so there 1130 * is no point in support callback. 1131 */ 1132 /* ARGSUSED */ 1133 static int 1134 iscsi_tran_reset_notify(struct scsi_address *ap, int flag, 1135 void (*callback) (caddr_t), caddr_t arg) 1136 { 1137 1138 /* 1139 * We never do BUS_RESETS so allowing this call 1140 * back to register has no point? 1141 */ 1142 return (DDI_SUCCESS); 1143 } 1144 1145 1146 /* 1147 * iscsi_tran_bus_config - on demand device configuration 1148 * 1149 * iscsi_tran_bus_config is called by the NDI layer at the completion 1150 * of a dev_node creation. There are two primary cases defined in this 1151 * function. The first is BUS_CONFIG_ALL. In this case the NDI is trying 1152 * to identify that targets/luns are available configured at that point 1153 * in time. It is safe to just complete the process succcessfully. The 1154 * second case is a new case that was defined in S10 for devfs. BUS_CONFIG_ONE 1155 * this is to help driver the top down discovery instead of bottom up. If 1156 * we receive a BUS_CONFIG_ONE we should check to see if the <addr> exists 1157 * if so complete successfull processing. Otherwise we should call the 1158 * deamon and see if we can plumb the <addr>. If it is possible to plumb the 1159 * <addr> block until plumbing is complete. In both cases of being able to 1160 * plumb <addr> or not continue with successfull processing. 1161 */ 1162 static int 1163 iscsi_tran_bus_config(dev_info_t *parent, uint_t flags, 1164 ddi_bus_config_op_t op, void *arg, dev_info_t **childp) 1165 { 1166 int rval = NDI_SUCCESS; 1167 iscsi_hba_t *ihp = NULL; 1168 int iflags = flags; 1169 char *name = NULL; 1170 char *ptr = NULL; 1171 boolean_t config_root = B_FALSE; 1172 1173 /* get reference to soft state */ 1174 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, 1175 ddi_get_instance(parent)); 1176 if (ihp == NULL) { 1177 return (NDI_FAILURE); 1178 } 1179 1180 iscsi_check_miniroot(ihp); 1181 if ((modrootloaded == 0) && (iscsiboot_prop != NULL)) { 1182 config_root = B_TRUE; 1183 } 1184 1185 if (config_root == B_FALSE) { 1186 if (iscsi_client_request_service(ihp) == B_FALSE) { 1187 return (NDI_FAILURE); 1188 } 1189 } 1190 1191 /* lock so only one config operation occrs */ 1192 sema_p(&iscsid_config_semaphore); 1193 1194 switch (op) { 1195 case BUS_CONFIG_ONE: 1196 /* parse target name out of name given */ 1197 if ((ptr = strchr((char *)arg, '@')) == NULL) { 1198 rval = NDI_FAILURE; 1199 break; 1200 } 1201 ptr++; /* move past '@' */ 1202 name = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); 1203 (void) strncpy(name, ptr, MAX_GET_NAME_SIZE); 1204 /* We need to strip the LUN */ 1205 if ((ptr = strchr(name, ',')) == NULL) { 1206 rval = NDI_FAILURE; 1207 kmem_free(name, MAX_GET_NAME_SIZE); 1208 name = NULL; 1209 break; 1210 } 1211 /* We also need to strip the 4 bytes of hex TPGT */ 1212 ptr -= 4; 1213 if (ptr <= name) { 1214 rval = NDI_FAILURE; 1215 kmem_free(name, MAX_GET_NAME_SIZE); 1216 name = NULL; 1217 break; 1218 } 1219 *ptr = '\0'; /* NULL terminate */ 1220 1221 /* translate name back to original iSCSI name */ 1222 iscsi_get_name_to_iqn(name, MAX_GET_NAME_SIZE); 1223 1224 /* configure target, skip 4 byte ISID */ 1225 iscsid_config_one(ihp, (name+4), B_TRUE); 1226 1227 kmem_free(name, MAX_GET_NAME_SIZE); 1228 name = NULL; 1229 1230 /* 1231 * DDI group instructed us to use this flag. 1232 */ 1233 iflags |= NDI_MDI_FALLBACK; 1234 break; 1235 case BUS_CONFIG_DRIVER: 1236 /* FALLTHRU */ 1237 case BUS_CONFIG_ALL: 1238 iscsid_config_all(ihp, B_TRUE); 1239 break; 1240 default: 1241 rval = NDI_FAILURE; 1242 break; 1243 } 1244 1245 if (rval == NDI_SUCCESS) { 1246 rval = ndi_busop_bus_config(parent, iflags, 1247 op, arg, childp, 0); 1248 } 1249 sema_v(&iscsid_config_semaphore); 1250 1251 if (config_root == B_FALSE) { 1252 iscsi_client_release_service(ihp); 1253 } 1254 1255 return (rval); 1256 } 1257 1258 /* 1259 * iscsi_tran_bus_unconfig - on demand device unconfiguration 1260 * 1261 * Called by the os framework under low resource situations. 1262 * It will attempt to unload our minor nodes (logical units 1263 * ndi/mdi nodes). 1264 */ 1265 static int 1266 iscsi_tran_bus_unconfig(dev_info_t *parent, uint_t flag, 1267 ddi_bus_config_op_t op, void *arg) 1268 { 1269 int rval = NDI_SUCCESS; 1270 iscsi_hba_t *ihp = NULL; 1271 1272 /* get reference to soft state */ 1273 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, 1274 ddi_get_instance(parent)); 1275 if (ihp == NULL) { 1276 return (NDI_FAILURE); 1277 } 1278 1279 if (iscsi_client_request_service(ihp) == B_FALSE) { 1280 return (NDI_FAILURE); 1281 } 1282 1283 rval = ndi_busop_bus_unconfig(parent, flag, op, arg); 1284 1285 iscsi_client_release_service(ihp); 1286 1287 return (rval); 1288 } 1289 1290 1291 /* 1292 * iscsi_tran_get_name - create private /devices name for LUN 1293 * 1294 * This creates the <addr> in /devices/iscsi/<driver>@<addr> 1295 * path. For this <addr> we return the <session/target_name>,<lun num> 1296 * Where <target_name> is an <iqn/eui/...> as defined by the iSCSI 1297 * specification. We do modify the name slightly so that it still 1298 * complies with the IEEE <addr> naming scheme. This means that we 1299 * will substitute out the ':', '@', ... and other reserved characters 1300 * defined in the IEEE definition with '%<hex value of special char>' 1301 * This routine is indirectly called by iscsi_lun_create_xxx. These 1302 * calling routines must prevent the session and lun lists from changing 1303 * during this routine. 1304 */ 1305 static int 1306 iscsi_tran_get_name(struct scsi_device *sd, char *name, int len) 1307 { 1308 int target = 0; 1309 int lun = 0; 1310 iscsi_hba_t *ihp = NULL; 1311 iscsi_sess_t *isp = NULL; 1312 iscsi_lun_t *ilp = NULL; 1313 dev_info_t *lun_dip = NULL; 1314 1315 ASSERT(sd != NULL); 1316 ASSERT(name != NULL); 1317 lun_dip = sd->sd_dev; 1318 ASSERT(lun_dip != NULL); 1319 1320 /* get reference to soft state */ 1321 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, 1322 ddi_get_instance(ddi_get_parent(lun_dip))); 1323 if (ihp == NULL) { 1324 name[0] = '\0'; 1325 return (0); 1326 } 1327 1328 /* Get the target num */ 1329 target = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, 1330 DDI_PROP_DONTPASS, TARGET_PROP, 0); 1331 1332 /* Get the target num */ 1333 lun = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, 1334 DDI_PROP_DONTPASS, LUN_PROP, 0); 1335 1336 /* 1337 * Now we need to find our ilp by walking the lists 1338 * off the ihp and isp. 1339 */ 1340 /* See if we already created this session */ 1341 1342 /* Walk the HBA's session list */ 1343 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 1344 /* compare target name as the unique identifier */ 1345 if (target == isp->sess_oid) { 1346 /* found match */ 1347 break; 1348 } 1349 } 1350 1351 /* If we found matching session continue searching for tgt */ 1352 if (isp == NULL) { 1353 /* sess not found */ 1354 name[0] = '\0'; 1355 return (0); 1356 } 1357 1358 /* 1359 * Search for the matching iscsi lun structure. We don't 1360 * need to hold the READER for the lun list at this point. 1361 * because the tran_get_name is being called from the online 1362 * function which is already holding a reader on the lun 1363 * list. 1364 */ 1365 for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { 1366 if (lun == ilp->lun_num) { 1367 /* found match */ 1368 break; 1369 } 1370 } 1371 1372 if (ilp == NULL) { 1373 /* tgt not found */ 1374 name[0] = '\0'; 1375 return (0); 1376 } 1377 1378 /* Ensure enough space for lun_addr is available */ 1379 ASSERT(ilp->lun_addr != NULL); 1380 if ((strlen(ilp->lun_addr) + 1) > len) { 1381 return (0); 1382 } 1383 1384 /* copy lun_addr name */ 1385 (void) strcpy(name, ilp->lun_addr); 1386 1387 /* 1388 * Based on IEEE-1275 we can't have any ':', ' ', '@', or '/' 1389 * characters in our naming. So replace all those characters 1390 * with '-' 1391 */ 1392 iscsi_get_name_from_iqn(name, len); 1393 1394 return (1); 1395 } 1396 1397 /* 1398 * iscsi_tran_get_bus_addr - This returns a human readable string 1399 * for the bus address. Examining most other drivers fcp, etc. They 1400 * all just return the same string as tran_get_name. In our case 1401 * our tran get name is already some what usable so leave alone. 1402 */ 1403 static int 1404 iscsi_tran_get_bus_addr(struct scsi_device *sd, char *name, int len) 1405 { 1406 return (iscsi_tran_get_name(sd, name, len)); 1407 } 1408 1409 1410 /* 1411 * +--------------------------------------------------------------------+ 1412 * | End of scsi_tran routines | 1413 * +--------------------------------------------------------------------+ 1414 */ 1415 1416 /* 1417 * +--------------------------------------------------------------------+ 1418 * | Start of cb_ops routines | 1419 * +--------------------------------------------------------------------+ 1420 */ 1421 1422 /* 1423 * iscsi_open - Driver should be made IOCTL MT safe. Otherwise 1424 * this function needs updated. 1425 */ 1426 /* ARGSUSED */ 1427 static int 1428 iscsi_open(dev_t *devp, int flags, int otyp, cred_t *credp) 1429 { 1430 return (0); 1431 } 1432 1433 /* 1434 * iscsi_close - 1435 */ 1436 /* ARGSUSED */ 1437 static int 1438 iscsi_close(dev_t dev, int flags, int otyp, cred_t *credp) 1439 { 1440 return (0); 1441 } 1442 1443 /* 1444 * iscsi_ioctl - 1445 */ 1446 /* ARGSUSED */ 1447 static int 1448 iscsi_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 1449 cred_t *credp, int *rvalp) 1450 { 1451 int rtn = 0; 1452 int instance = 0; 1453 int list_space = 0; 1454 int lun_sz = 0; 1455 int did; 1456 int retry; 1457 iscsi_hba_t *ihp = NULL; 1458 iscsi_sess_t *isp = NULL; 1459 iscsi_conn_t *icp = NULL; 1460 iscsi_login_params_t *params = NULL; 1461 iscsi_login_params_t *tmpParams = NULL; 1462 uchar_t *name = NULL; 1463 dev_info_t *lun_dip = NULL; 1464 1465 entry_t e; 1466 iscsi_oid_t oid; 1467 iscsi_property_t *ipp; 1468 iscsi_static_property_t *ispp; 1469 iscsi_param_get_t *ilg; 1470 iscsi_param_set_t *ils; 1471 iscsi_target_list_t idl, *idlp = NULL; 1472 iscsi_addr_list_t ial, *ialp = NULL; 1473 iscsi_chap_props_t *chap = NULL; 1474 iscsi_radius_props_t *radius = NULL; 1475 iscsi_auth_props_t *auth = NULL; 1476 iscsi_lun_list_t *ll, *llp = NULL; 1477 iscsi_lun_props_t *lun = NULL; 1478 iscsi_lun_t *ilp = NULL; 1479 iSCSIDiscoveryMethod_t method; 1480 iSCSIDiscoveryProperties_t discovery_props; 1481 iscsi_uscsi_t iu; 1482 iscsi_uscsi_t iu_caller; 1483 #ifdef _MULTI_DATAMODEL 1484 /* For use when a 32 bit app makes a call into a 64 bit ioctl */ 1485 iscsi_uscsi32_t iu32_caller; 1486 model_t model; 1487 #endif /* _MULTI_DATAMODEL */ 1488 void *void_p; 1489 iscsi_sendtgts_list_t *stl_hdr; 1490 iscsi_sendtgts_list_t *istl; 1491 int stl_sz; 1492 iscsi_target_entry_t *target; 1493 uint32_t old_oid; 1494 uint32_t target_oid; 1495 iscsi_targetparam_entry_t *curr_entry; 1496 char *initiator_node_name; 1497 char *initiator_node_alias; 1498 isns_portal_group_list_t *pg_list = NULL; 1499 isns_server_portal_group_list_t *server_pg_list_hdr = NULL; 1500 isns_server_portal_group_list_t *server_pg_list = NULL; 1501 int pg_list_sz, pg_sz_copy_out, server_pg_list_sz; 1502 iscsi_config_sess_t *ics; 1503 int size; 1504 boolean_t rval; 1505 char init_port_name[MAX_NAME_PROP_SIZE]; 1506 iscsi_sockaddr_t addr_dsc; 1507 iscsi_boot_property_t *bootProp; 1508 boolean_t discovered = B_TRUE; 1509 iscsi_tunable_object_t *tpsg; 1510 iscsi_tunable_object_t *tpss; 1511 1512 instance = getminor(dev); 1513 ihp = (iscsi_hba_t *)ddi_get_soft_state(iscsi_state, instance); 1514 if (ihp == NULL) 1515 return (EFAULT); 1516 1517 iscsi_check_miniroot(ihp); 1518 if ((cmd != ISCSI_SMF_ONLINE) && (cmd != ISCSI_SMF_OFFLINE) && 1519 (cmd != ISCSI_SMF_GET)) { 1520 /* other cmd needs to acquire the service */ 1521 if (iscsi_client_request_service(ihp) == B_FALSE) { 1522 return (EFAULT); 1523 } 1524 } 1525 1526 switch (cmd) { 1527 /* 1528 * ISCSI_CREATE_OID - Create a Object IDentifier for a TargetName 1529 */ 1530 case ISCSI_CREATE_OID: 1531 if (ddi_copyin((caddr_t)arg, &oid, sizeof (oid), mode)) { 1532 rtn = EFAULT; 1533 break; 1534 } 1535 if (oid.o_vers != ISCSI_INTERFACE_VERSION) { 1536 rtn = EINVAL; 1537 break; 1538 } 1539 1540 /* Set the target that this session is associated with */ 1541 oid.o_oid = iscsi_targetparam_get_oid(oid.o_name); 1542 1543 if (ddi_copyout(&oid, (caddr_t)arg, sizeof (oid), mode)) { 1544 rtn = EFAULT; 1545 break; 1546 } 1547 break; 1548 /* 1549 * ISCSI_PARAM_GET - Get param for specified 1550 * connection/session. 1551 */ 1552 case ISCSI_PARAM_GET: 1553 /* copyin user args */ 1554 ilg = (iscsi_param_get_t *)kmem_alloc(sizeof (*ilg), KM_SLEEP); 1555 if (ddi_copyin((caddr_t)arg, ilg, sizeof (*ilg), mode)) { 1556 rtn = EFAULT; 1557 kmem_free(ilg, sizeof (*ilg)); 1558 break; 1559 } 1560 1561 if (ilg->g_vers != ISCSI_INTERFACE_VERSION) { 1562 rtn = EINVAL; 1563 kmem_free(ilg, sizeof (*ilg)); 1564 break; 1565 } 1566 1567 /* handle special case for Initiator name */ 1568 if (ilg->g_param == ISCSI_LOGIN_PARAM_INITIATOR_NAME) { 1569 (void) strlcpy((char *)ilg->g_value.v_name, 1570 (char *)ihp->hba_name, ISCSI_MAX_NAME_LEN); 1571 } else if (ilg->g_param == ISCSI_LOGIN_PARAM_INITIATOR_ALIAS) { 1572 if (ihp->hba_alias_length == 0) { 1573 rtn = EINVAL; 1574 } else { 1575 (void) strlcpy((char *)ilg->g_value.v_name, 1576 (char *)ihp->hba_alias, ISCSI_MAX_NAME_LEN); 1577 } 1578 } else { 1579 /* To describe the validity of the requested param */ 1580 boolean_t valid_flag = B_TRUE; 1581 1582 name = NULL; 1583 1584 /* 1585 * switch login based if looking for initiator 1586 * params 1587 */ 1588 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 1589 if (ilg->g_oid == ihp->hba_oid) { 1590 /* initiator */ 1591 params = &ihp->hba_params; 1592 name = ihp->hba_name; 1593 if (iscsi_get_persisted_param(name, 1594 ilg, params) != 0) { 1595 valid_flag = B_FALSE; 1596 } 1597 } else { 1598 /* 1599 * If the oid does represent a session check 1600 * to see if it is a target oid. If so, 1601 * return the target's associated session. 1602 */ 1603 rtn = iscsi_sess_get(ilg->g_oid, ihp, &isp); 1604 if (rtn != 0) { 1605 rtn = iscsi_sess_get_by_target( 1606 ilg->g_oid, ihp, &isp); 1607 } 1608 1609 /* 1610 * If rtn is zero then we have found an 1611 * existing session. Use the session name to 1612 * do param lookup. If rtn is non-zero then 1613 * create a targetparam object and use its name 1614 * for param lookup. 1615 */ 1616 if (rtn == 0) { 1617 name = isp->sess_name; 1618 params = &isp->sess_params; 1619 } else { 1620 name = 1621 iscsi_targetparam_get_name( 1622 ilg->g_oid); 1623 if (ilg->g_param_type == 1624 ISCSI_SESS_PARAM) { 1625 tmpParams = 1626 (iscsi_login_params_t *) 1627 kmem_alloc( 1628 sizeof (*tmpParams), 1629 KM_SLEEP); 1630 params = tmpParams; 1631 } 1632 rtn = 0; 1633 } 1634 1635 if (name == NULL) { 1636 rw_exit( 1637 &ihp->hba_sess_list_rwlock); 1638 rtn = EFAULT; 1639 kmem_free(ilg, sizeof (*ilg)); 1640 if (tmpParams != NULL) 1641 kmem_free(tmpParams, 1642 sizeof (*tmpParams)); 1643 1644 break; 1645 } 1646 1647 if (ilg->g_param_type == ISCSI_SESS_PARAM) { 1648 /* session */ 1649 /* 1650 * Update sess_params with the 1651 * latest params from the 1652 * persistent store. 1653 */ 1654 if (iscsi_get_persisted_param(name, 1655 ilg, params) != 0) { 1656 /* 1657 * If the parameter in 1658 * question is not 1659 * overriden, no effect 1660 * on existing session 1661 * parameters. However, 1662 * the parameter is 1663 * marked invalid 1664 * (from the standpoint 1665 * of whether it is 1666 * overriden). 1667 */ 1668 valid_flag = B_FALSE; 1669 } 1670 } else if (ilg->g_param_type == 1671 ISCSI_CONN_PARAM && isp != NULL) { 1672 /* connection */ 1673 rw_enter(&isp->sess_conn_list_rwlock, 1674 RW_READER); 1675 /* Assuming 1 conn per sess. */ 1676 /* 1677 * MC/S - Need to be modified to 1678 * take g_conn_cid into account when 1679 * we go multi-connection. 1680 */ 1681 if ((isp->sess_conn_act != NULL) && 1682 (isp->sess_conn_act->conn_state == 1683 ISCSI_CONN_STATE_LOGGED_IN)) { 1684 params = &(isp-> 1685 sess_conn_act-> 1686 conn_params); 1687 } else { 1688 valid_flag = B_FALSE; 1689 } 1690 rw_exit(&isp->sess_conn_list_rwlock); 1691 } 1692 } 1693 1694 /* make sure we have params to get info from */ 1695 if (params) { 1696 rtn = iscsi_get_param(params, valid_flag, ilg); 1697 1698 /* 1699 * for target parameters, check if any 1700 * parameters were overridden at the initiator 1701 * level. If so, then change the default value 1702 * to the initiator's overridden value 1703 */ 1704 if ((rtn == 0) && 1705 (ilg->g_oid != ihp->hba_oid)) { 1706 iscsi_override_target_default(ihp, 1707 ilg); 1708 } 1709 } 1710 rw_exit(&ihp->hba_sess_list_rwlock); 1711 } 1712 1713 if (rtn == 0) { 1714 rtn = ddi_copyout(ilg, (caddr_t)arg, 1715 sizeof (iscsi_param_get_t), mode); 1716 } 1717 kmem_free(ilg, sizeof (*ilg)); 1718 if (tmpParams != NULL) 1719 kmem_free(tmpParams, sizeof (*tmpParams)); 1720 break; 1721 1722 /* 1723 * ISCSI_INIT_NODE_NAME_SET - Change the initiator-node name for 1724 * the specified connection/session. 1725 */ 1726 case ISCSI_INIT_NODE_NAME_SET: 1727 /* copyin user args */ 1728 ils = (iscsi_param_set_t *)kmem_alloc(sizeof (*ils), KM_SLEEP); 1729 if (ddi_copyin((caddr_t)arg, ils, sizeof (*ils), mode)) { 1730 rtn = EFAULT; 1731 kmem_free(ils, sizeof (*ils)); 1732 break; 1733 } 1734 1735 if (ils->s_vers != ISCSI_INTERFACE_VERSION) { 1736 rtn = EINVAL; 1737 kmem_free(ils, sizeof (*ils)); 1738 break; 1739 } 1740 1741 /* saving off the old initiator-node name */ 1742 initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 1743 rval = persistent_initiator_name_get(initiator_node_name, 1744 ISCSI_MAX_NAME_LEN); 1745 1746 rtn = iscsi_set_params(ils, ihp, B_TRUE); 1747 kmem_free(ils, sizeof (*ils)); 1748 if (rtn != 0) { 1749 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 1750 initiator_node_name = NULL; 1751 break; 1752 } 1753 1754 (void) snprintf(init_port_name, MAX_NAME_PROP_SIZE, 1755 "%s,%02x%02x%02x%02x%02x%02x", 1756 (char *)ihp->hba_name, ihp->hba_isid[0], 1757 ihp->hba_isid[1], ihp->hba_isid[2], 1758 ihp->hba_isid[3], ihp->hba_isid[4], 1759 ihp->hba_isid[5]); 1760 1761 if (ddi_prop_update_string(DDI_DEV_T_NONE, 1762 ihp->hba_dip, SCSI_ADDR_PROP_INITIATOR_PORT, 1763 init_port_name) != DDI_PROP_SUCCESS) { 1764 cmn_err(CE_WARN, "iscsi_ioctl: Updating " 1765 SCSI_ADDR_PROP_INITIATOR_PORT " property on iSCSI " 1766 "HBA(%s) with dip(%d) Failed", 1767 (char *)ihp->hba_name, 1768 ddi_get_instance(ihp->hba_dip)); 1769 } 1770 1771 /* 1772 * Deregister the old initiator-node name from the iSNS 1773 * server 1774 * Register the new initiator-node name with the iSNS server 1775 */ 1776 method = persistent_disc_meth_get(); 1777 if (method & iSCSIDiscoveryMethodISNS) { 1778 if (rval == B_TRUE) { 1779 if (strlen(initiator_node_name) > 0) { 1780 /* 1781 * we will attempt to offline the targets. 1782 * if logouts fail, we will still continue 1783 */ 1784 #define STRING_INNO "initiator-node name - Offline " 1785 #define STRING_FFOMD "failed for one or more devices" 1786 if ((iscsid_del( 1787 ihp, NULL, method, NULL)) 1788 != B_TRUE) { 1789 cmn_err(CE_NOTE, 1790 "Attempting to change " 1791 STRING_INNO 1792 STRING_FFOMD); 1793 } 1794 (void) isns_dereg(ihp->hba_isid, 1795 (uint8_t *)initiator_node_name); 1796 #undef STRING_INNO 1797 #undef STRING_FFOMD 1798 } 1799 } 1800 if (persistent_initiator_name_get(initiator_node_name, 1801 ISCSI_MAX_NAME_LEN) != B_TRUE) { 1802 kmem_free(initiator_node_name, 1803 ISCSI_MAX_NAME_LEN); 1804 initiator_node_name = NULL; 1805 rtn = EIO; 1806 break; 1807 } 1808 if (strlen(initiator_node_name) == 0) { 1809 kmem_free(initiator_node_name, 1810 ISCSI_MAX_NAME_LEN); 1811 initiator_node_name = NULL; 1812 rtn = EIO; 1813 break; 1814 } 1815 1816 initiator_node_alias = kmem_zalloc(ISCSI_MAX_NAME_LEN, 1817 KM_SLEEP); 1818 if (persistent_alias_name_get(initiator_node_alias, 1819 ISCSI_MAX_NAME_LEN) != B_TRUE) { 1820 initiator_node_alias[0] = '\0'; 1821 } 1822 1823 (void) isns_reg(ihp->hba_isid, 1824 (uint8_t *)initiator_node_name, 1825 ISCSI_MAX_NAME_LEN, 1826 (uint8_t *)initiator_node_alias, 1827 ISCSI_MAX_NAME_LEN, 1828 ISNS_INITIATOR_NODE_TYPE, 1829 isns_scn_callback); 1830 iscsid_do_isns_query(ihp); 1831 1832 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 1833 initiator_node_alias = NULL; 1834 } 1835 1836 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 1837 initiator_node_name = NULL; 1838 break; 1839 1840 /* 1841 * ISCSI_PARAM_SET - Set param for specified connection/session. 1842 */ 1843 case ISCSI_PARAM_SET: 1844 /* copyin user args */ 1845 ils = (iscsi_param_set_t *)kmem_alloc(sizeof (*ils), KM_SLEEP); 1846 if (ddi_copyin((caddr_t)arg, ils, sizeof (*ils), mode)) { 1847 rtn = EFAULT; 1848 kmem_free(ils, sizeof (*ils)); 1849 break; 1850 } 1851 1852 if (ils->s_vers != ISCSI_INTERFACE_VERSION) { 1853 rtn = EINVAL; 1854 kmem_free(ils, sizeof (*ils)); 1855 break; 1856 } 1857 rtn = iscsi_set_params(ils, ihp, B_TRUE); 1858 if (iscsiboot_prop) { 1859 if (iscsi_cmp_boot_sess_oid(ihp, ils->s_oid)) { 1860 /* 1861 * found active session for this object 1862 * or this is initiator's object 1863 * with mpxio enabled 1864 */ 1865 if (!iscsi_reconfig_boot_sess(ihp)) { 1866 rtn = EINVAL; 1867 kmem_free(ils, sizeof (*ils)); 1868 break; 1869 } 1870 } 1871 } 1872 kmem_free(ils, sizeof (*ils)); 1873 break; 1874 1875 /* 1876 * ISCSI_TARGET_PARAM_CLEAR 1877 * - remove custom parameter settings for a target. 1878 */ 1879 case ISCSI_TARGET_PARAM_CLEAR: 1880 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 1881 rtn = EFAULT; 1882 break; 1883 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 1884 rtn = EINVAL; 1885 break; 1886 } 1887 1888 if ((e.e_oid != ihp->hba_oid) && 1889 (e.e_oid != ISCSI_OID_NOTSET)) { 1890 uchar_t *t_name; 1891 iscsi_sess_t *t_isp; 1892 1893 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 1894 /* 1895 * If the oid does represent a session check to see 1896 * if it is a target oid. If so, return the target's 1897 * associated session. 1898 */ 1899 rtn = iscsi_sess_get(e.e_oid, ihp, &isp); 1900 if (rtn != 0) { 1901 rtn = iscsi_sess_get_by_target(e.e_oid, ihp, 1902 &isp); 1903 } 1904 1905 /* 1906 * If rtn is zero then we have found an 1907 * existing session. Use the session name to 1908 * do param lookup. If rtn is non-zero then 1909 * create a targetparam object and use its name 1910 * for param lookup. 1911 */ 1912 if (rtn == 0) { 1913 t_name = isp->sess_name; 1914 } else { 1915 t_name = iscsi_targetparam_get_name(e.e_oid); 1916 rtn = 0; 1917 } 1918 1919 if (t_name == NULL) { 1920 rw_exit(&ihp->hba_sess_list_rwlock); 1921 rtn = EFAULT; 1922 break; 1923 } 1924 1925 name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 1926 (void) strncpy((char *)name, (char *)t_name, 1927 ISCSI_MAX_NAME_LEN); 1928 1929 if (persistent_param_clear((char *)name) == B_FALSE) { 1930 kmem_free(name, ISCSI_MAX_NAME_LEN); 1931 rw_exit(&ihp->hba_sess_list_rwlock); 1932 rtn = EIO; 1933 break; 1934 } 1935 1936 ics = kmem_zalloc(sizeof (*ics), KM_SLEEP); 1937 ics->ics_ver = ISCSI_INTERFACE_VERSION; 1938 ics->ics_oid = ISCSI_INITIATOR_OID; 1939 ics->ics_in = 1; 1940 1941 /* 1942 * We may have multiple sessions with different 1943 * tpgt values. So we need to loop through 1944 * the sessions and update all sessions. 1945 */ 1946 for (isp = ihp->hba_sess_list; isp; 1947 isp = t_isp) { 1948 t_isp = isp->sess_next; 1949 1950 if (strncmp((char *)isp->sess_name, 1951 (char *)name, ISCSI_MAX_NAME_LEN) == 0) { 1952 /* 1953 * When removing target-params we need 1954 * slightly different actions depending 1955 * on if the session should still exist. 1956 * Get the initiator-node value for 1957 * MS/T. If there is no initiator 1958 * value then assume the default value 1959 * of 1. If the initiator value is 1960 * less than this ISID then we need to 1961 * destroy the session. Otherwise 1962 * update the session information and 1963 * resync (N7 event). 1964 */ 1965 rtn = iscsi_ioctl_get_config_sess( 1966 ihp, ics); 1967 if (((rtn != 0) && 1968 (isp->sess_isid[5] > 0)) || 1969 ((rtn == 0) && 1970 (ics->ics_out <= 1971 isp->sess_isid[5]))) { 1972 1973 /* 1974 * This session should no 1975 * longer exist. Remove 1976 * session. 1977 */ 1978 if (!ISCSI_SUCCESS( 1979 iscsi_sess_destroy(isp))) { 1980 kmem_free(ics, 1981 sizeof (*ics)); 1982 kmem_free(name, 1983 ISCSI_MAX_NAME_LEN); 1984 rw_exit(&ihp-> 1985 hba_sess_list_rwlock); 1986 rtn = EBUSY; 1987 break; 1988 } 1989 isp = ihp->hba_sess_list; 1990 } else { 1991 /* 1992 * Reset the session 1993 * parameters. 1994 */ 1995 bcopy(&(isp->sess_hba-> 1996 hba_params), 1997 &(isp->sess_params), 1998 sizeof (isp->sess_params)); 1999 if (iscsiboot_prop && 2000 isp->sess_boot) { 2001 /* 2002 * reconfig boot 2003 * session later 2004 */ 2005 continue; 2006 } 2007 /* 2008 * Notify the session that the 2009 * login parameters have 2010 * changed. 2011 */ 2012 mutex_enter(&isp-> 2013 sess_state_mutex); 2014 iscsi_sess_state_machine(isp, 2015 ISCSI_SESS_EVENT_N7); 2016 mutex_exit(&isp-> 2017 sess_state_mutex); 2018 } 2019 } 2020 } 2021 kmem_free(ics, sizeof (*ics)); 2022 kmem_free(name, ISCSI_MAX_NAME_LEN); 2023 rw_exit(&ihp->hba_sess_list_rwlock); 2024 if (iscsiboot_prop) { 2025 if (iscsi_cmp_boot_sess_oid(ihp, e.e_oid)) { 2026 /* 2027 * found active session for this object 2028 * or this is initiator object 2029 * with mpxio enabled 2030 */ 2031 if (!iscsi_reconfig_boot_sess(ihp)) { 2032 rtn = EINVAL; 2033 break; 2034 } 2035 } 2036 } 2037 } 2038 break; 2039 2040 /* 2041 * ISCSI_TARGET_OID_LIST_GET - 2042 */ 2043 case ISCSI_TARGET_OID_LIST_GET: 2044 /* copyin user args */ 2045 if (ddi_copyin((caddr_t)arg, &idl, 2046 sizeof (idl), mode)) { 2047 rtn = EFAULT; 2048 break; 2049 } 2050 2051 if (idl.tl_vers != ISCSI_INTERFACE_VERSION) { 2052 rtn = EINVAL; 2053 break; 2054 } 2055 2056 list_space = sizeof (iscsi_target_list_t); 2057 if (idl.tl_in_cnt != 0) 2058 list_space += (sizeof (uint32_t) * 2059 (idl.tl_in_cnt - 1)); 2060 2061 idlp = kmem_zalloc(list_space, KM_SLEEP); 2062 bcopy(&idl, idlp, sizeof (idl)); 2063 idlp->tl_out_cnt = 0; 2064 2065 /* 2066 * If target list type is ISCSI_TGT_OID_LIST and discovery 2067 * has not been completed or in progress, poke the discovery 2068 * methods so target information is returned 2069 */ 2070 mutex_enter(&ihp->hba_discovery_events_mutex); 2071 method = ihp->hba_discovery_events; 2072 if ((idl.tl_tgt_list_type == ISCSI_TGT_OID_LIST) && 2073 (method != ISCSI_ALL_DISCOVERY_METHODS) && 2074 (ihp->hba_discovery_in_progress == B_FALSE)) { 2075 ihp->hba_discovery_in_progress = B_TRUE; 2076 mutex_exit(&ihp->hba_discovery_events_mutex); 2077 iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodUnknown); 2078 mutex_enter(&ihp->hba_discovery_events_mutex); 2079 ihp->hba_discovery_in_progress = B_FALSE; 2080 } 2081 mutex_exit(&ihp->hba_discovery_events_mutex); 2082 2083 /* 2084 * Return the correct list information based on the type 2085 */ 2086 switch (idl.tl_tgt_list_type) { 2087 /* ISCSI_TGT_PARAM_OID_LIST - iscsiadm list target-params */ 2088 case ISCSI_TGT_PARAM_OID_LIST: 2089 /* get params from persistent store */ 2090 iscsi_targetparam_lock_list(RW_READER); 2091 curr_entry = iscsi_targetparam_get_next_entry(NULL); 2092 while (curr_entry != NULL) { 2093 if (idlp->tl_out_cnt < idlp->tl_in_cnt) { 2094 idlp->tl_oid_list[idlp->tl_out_cnt] = 2095 curr_entry->target_oid; 2096 } 2097 idlp->tl_out_cnt++; 2098 curr_entry = iscsi_targetparam_get_next_entry( 2099 curr_entry); 2100 } 2101 iscsi_targetparam_unlock_list(); 2102 break; 2103 2104 /* ISCSI_STATIC_TGT_OID_LIST - iscsiadm list static-config */ 2105 case ISCSI_STATIC_TGT_OID_LIST: 2106 { 2107 char *target_name = NULL; 2108 void *v = NULL; 2109 2110 /* get static-config from persistent store */ 2111 target_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 2112 persistent_static_addr_lock(); 2113 while (persistent_static_addr_next(&v, 2114 (char *)target_name, &e) == B_TRUE) { 2115 2116 if (idlp->tl_out_cnt < idlp->tl_in_cnt) { 2117 idlp->tl_oid_list[idlp->tl_out_cnt] = 2118 e.e_oid; 2119 } 2120 idlp->tl_out_cnt++; 2121 2122 } 2123 2124 persistent_static_addr_unlock(); 2125 kmem_free(target_name, ISCSI_MAX_NAME_LEN); 2126 break; 2127 } 2128 2129 /* ISCSI_TGT_OID_LIST - iscsiadm list target */ 2130 case ISCSI_TGT_OID_LIST: 2131 2132 /* get sessions from hba's session list */ 2133 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2134 for (isp = ihp->hba_sess_list; isp; 2135 isp = isp->sess_next) { 2136 2137 if (((isp->sess_state != 2138 ISCSI_SESS_STATE_FREE) || 2139 (isp->sess_discovered_by != 2140 iSCSIDiscoveryMethodUnknown)) && 2141 (isp->sess_type == 2142 ISCSI_SESS_TYPE_NORMAL)) { 2143 if (idlp->tl_out_cnt < 2144 idlp->tl_in_cnt) { 2145 idlp->tl_oid_list[ 2146 idlp->tl_out_cnt] = 2147 isp->sess_oid; 2148 } 2149 idlp->tl_out_cnt++; 2150 } 2151 2152 } 2153 rw_exit(&ihp->hba_sess_list_rwlock); 2154 break; 2155 2156 default: 2157 ASSERT(FALSE); 2158 } 2159 2160 rtn = ddi_copyout(idlp, (caddr_t)arg, list_space, mode); 2161 kmem_free(idlp, list_space); 2162 break; 2163 2164 /* 2165 * ISCSI_TARGET_PROPS_GET - 2166 */ 2167 case ISCSI_TARGET_PROPS_GET: 2168 /* ---- fall through sense the code is almost the same ---- */ 2169 2170 /* 2171 * ISCSI_TARGET_PROPS_SET - 2172 */ 2173 case ISCSI_TARGET_PROPS_SET: 2174 /* copyin user args */ 2175 ipp = (iscsi_property_t *)kmem_alloc(sizeof (*ipp), 2176 KM_SLEEP); 2177 if (ddi_copyin((caddr_t)arg, ipp, sizeof (*ipp), mode)) { 2178 rtn = EFAULT; 2179 kmem_free(ipp, sizeof (*ipp)); 2180 break; 2181 } 2182 2183 if (ipp->p_vers != ISCSI_INTERFACE_VERSION) { 2184 rtn = EINVAL; 2185 kmem_free(ipp, sizeof (*ipp)); 2186 break; 2187 } 2188 2189 rtn = iscsi_target_prop_mod(ihp, ipp, cmd); 2190 if (rtn == 0) 2191 rtn = ddi_copyout(ipp, (caddr_t)arg, 2192 sizeof (*ipp), mode); 2193 kmem_free(ipp, sizeof (*ipp)); 2194 break; 2195 2196 /* 2197 * ISCSI_TARGET_ADDRESS_GET - 2198 */ 2199 case ISCSI_TARGET_ADDRESS_GET: 2200 if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { 2201 rtn = EFAULT; 2202 break; 2203 } 2204 2205 if (ial.al_vers != ISCSI_INTERFACE_VERSION) { 2206 rtn = EINVAL; 2207 break; 2208 } 2209 2210 /* 2211 * Find out how much space we need to malloc for the users 2212 * request. 2213 */ 2214 list_space = sizeof (iscsi_addr_list_t); 2215 if (ial.al_in_cnt != 0) { 2216 list_space += (sizeof (iscsi_addr_t) * 2217 (ial.al_in_cnt - 1)); 2218 } 2219 ialp = (iscsi_addr_list_t *)kmem_zalloc(list_space, KM_SLEEP); 2220 2221 /* Copy in the header portion */ 2222 bcopy(&ial, ialp, sizeof (ial)); 2223 2224 /* session */ 2225 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2226 rtn = iscsi_sess_get(ialp->al_oid, ihp, &isp); 2227 if (rtn != 0) { 2228 rw_exit(&ihp->hba_sess_list_rwlock); 2229 rtn = EFAULT; 2230 break; 2231 } 2232 2233 ialp->al_out_cnt = 0; 2234 ialp->al_tpgt = isp->sess_tpgt_conf; 2235 rw_enter(&isp->sess_conn_list_rwlock, RW_READER); 2236 for (icp = isp->sess_conn_list; icp; icp = icp->conn_next) { 2237 if (icp->conn_state != ISCSI_CONN_STATE_LOGGED_IN) { 2238 continue; 2239 } 2240 if (ialp->al_out_cnt < ialp->al_in_cnt) { 2241 iscsi_addr_t *ap; 2242 2243 ap = &ialp->al_addrs[ialp->al_out_cnt]; 2244 if (icp->conn_base_addr.sin.sa_family 2245 == AF_INET) { 2246 2247 struct sockaddr_in *addr_in = 2248 (struct sockaddr_in *)&icp-> 2249 conn_base_addr.sin4; 2250 ap->a_addr.i_insize = 2251 sizeof (struct in_addr); 2252 bcopy(&addr_in->sin_addr.s_addr, 2253 &ap->a_addr.i_addr.in4.s_addr, 2254 sizeof (struct in_addr)); 2255 ap->a_port = addr_in->sin_port; 2256 2257 } else { 2258 2259 struct sockaddr_in6 *addr_in6 = 2260 (struct sockaddr_in6 *)&icp-> 2261 conn_base_addr.sin6; 2262 ap->a_addr.i_insize = 2263 sizeof (struct in6_addr); 2264 bcopy(&addr_in6->sin6_addr.s6_addr, 2265 &ap->a_addr.i_addr.in6.s6_addr, 2266 sizeof (struct in6_addr)); 2267 ap->a_port = addr_in6->sin6_port; 2268 2269 } 2270 } 2271 ialp->al_out_cnt++; 2272 } 2273 rw_exit(&isp->sess_conn_list_rwlock); 2274 rw_exit(&ihp->hba_sess_list_rwlock); 2275 2276 rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); 2277 kmem_free(ialp, list_space); 2278 break; 2279 2280 /* 2281 * ISCSI_CHAP_SET - 2282 */ 2283 case ISCSI_CHAP_SET: 2284 chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), 2285 KM_SLEEP); 2286 if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { 2287 rtn = EFAULT; 2288 kmem_free(chap, sizeof (*chap)); 2289 break; 2290 } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { 2291 rtn = EINVAL; 2292 kmem_free(chap, sizeof (*chap)); 2293 break; 2294 } 2295 2296 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2297 if (chap->c_oid == ihp->hba_oid) 2298 name = ihp->hba_name; 2299 else { 2300 rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); 2301 if (rtn != 0) { 2302 rtn = iscsi_sess_get_by_target( 2303 chap->c_oid, ihp, &isp); 2304 } 2305 2306 /* 2307 * If rtn is zero then we have found an 2308 * existing session. Use the session name to 2309 * do param lookup. If rtn is non-zero then 2310 * create a targetparam object and use its name 2311 * for param lookup. 2312 */ 2313 if (rtn == 0) { 2314 name = isp->sess_name; 2315 } else { 2316 name = 2317 iscsi_targetparam_get_name(chap->c_oid); 2318 rtn = 0; 2319 } 2320 } 2321 2322 if (name == NULL) { 2323 rw_exit( 2324 &ihp->hba_sess_list_rwlock); 2325 rtn = EFAULT; 2326 kmem_free(chap, sizeof (*chap)); 2327 break; 2328 } 2329 2330 if (persistent_chap_set((char *)name, chap) == 2331 B_FALSE) { 2332 rtn = EIO; 2333 } 2334 rw_exit(&ihp->hba_sess_list_rwlock); 2335 kmem_free(chap, sizeof (*chap)); 2336 break; 2337 2338 /* 2339 * ISCSI_CHAP_GET - 2340 */ 2341 case ISCSI_CHAP_GET: 2342 chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), 2343 KM_SLEEP); 2344 if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { 2345 kmem_free(chap, sizeof (*chap)); 2346 rtn = EFAULT; 2347 break; 2348 } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { 2349 kmem_free(chap, sizeof (*chap)); 2350 rtn = EINVAL; 2351 break; 2352 } 2353 2354 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2355 if (chap->c_oid == ihp->hba_oid) 2356 name = ihp->hba_name; 2357 else { 2358 rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); 2359 if (rtn != 0) { 2360 rtn = iscsi_sess_get_by_target( 2361 chap->c_oid, ihp, &isp); 2362 } 2363 2364 /* 2365 * If rtn is zero then we have found an 2366 * existing session. Use the session name to 2367 * do param lookup. If rtn is non-zero then 2368 * create a targetparam object and use its name 2369 * for param lookup. 2370 */ 2371 if (rtn == 0) { 2372 name = isp->sess_name; 2373 } else { 2374 rtn = 0; 2375 name = 2376 iscsi_targetparam_get_name(chap->c_oid); 2377 } 2378 2379 if (name == NULL) { 2380 rw_exit(&ihp->hba_sess_list_rwlock); 2381 rtn = EFAULT; 2382 break; 2383 } 2384 /* 2385 * Initialize the target-side chap name to the 2386 * session name if no chap settings have been 2387 * saved for the current session. 2388 */ 2389 if (persistent_chap_get((char *)name, 2390 chap) == B_FALSE) { 2391 int name_len = strlen((char *)name); 2392 iscsi_chap_props_t *chap = NULL; 2393 chap = (iscsi_chap_props_t *)kmem_zalloc 2394 (sizeof (iscsi_chap_props_t), KM_SLEEP); 2395 bcopy((char *)name, chap->c_user, name_len); 2396 chap->c_user_len = name_len; 2397 (void) (persistent_chap_set((char *)name, 2398 chap)); 2399 kmem_free(chap, sizeof (*chap)); 2400 } 2401 } 2402 2403 if (name == NULL) { 2404 rw_exit( 2405 &ihp->hba_sess_list_rwlock); 2406 rtn = EFAULT; 2407 break; 2408 } 2409 2410 if (persistent_chap_get((char *)name, chap) == B_FALSE) { 2411 rw_exit(&ihp->hba_sess_list_rwlock); 2412 rtn = EIO; 2413 break; 2414 } 2415 rw_exit(&ihp->hba_sess_list_rwlock); 2416 2417 rtn = ddi_copyout(chap, (caddr_t)arg, sizeof (*chap), mode); 2418 kmem_free(chap, sizeof (*chap)); 2419 break; 2420 2421 /* 2422 * ISCSI_CHAP_CLEAR - 2423 */ 2424 case ISCSI_CHAP_CLEAR: 2425 chap = (iscsi_chap_props_t *)kmem_zalloc(sizeof (*chap), 2426 KM_SLEEP); 2427 if (ddi_copyin((caddr_t)arg, chap, sizeof (*chap), mode)) { 2428 rtn = EFAULT; 2429 kmem_free(chap, sizeof (*chap)); 2430 break; 2431 } else if (chap->c_vers != ISCSI_INTERFACE_VERSION) { 2432 rtn = EINVAL; 2433 kmem_free(chap, sizeof (*chap)); 2434 break; 2435 } 2436 2437 if (chap->c_oid == ihp->hba_oid) { 2438 iscsi_sess_t *sessp; 2439 2440 name = ihp->hba_name; 2441 2442 if (persistent_chap_clear( 2443 (char *)name) == B_FALSE) { 2444 rtn = EIO; 2445 } 2446 2447 /* 2448 * Loop through all sessions and memset their 2449 * (initiator's) passwords 2450 */ 2451 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2452 for (sessp = ihp->hba_sess_list; sessp; 2453 sessp = sessp->sess_next) { 2454 (void) memset(sessp->sess_auth.password, 2455 0, iscsiAuthStringMaxLength); 2456 sessp->sess_auth.password_length = 0; 2457 } 2458 rw_exit(&ihp->hba_sess_list_rwlock); 2459 2460 } else { 2461 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 2462 /* 2463 * If the oid does represent a session check to see 2464 * if it is a target oid. If so, return the target's 2465 * associated session. 2466 */ 2467 rtn = iscsi_sess_get(chap->c_oid, ihp, &isp); 2468 if (rtn != 0) { 2469 rtn = iscsi_sess_get_by_target(chap->c_oid, 2470 ihp, &isp); 2471 } 2472 2473 rw_exit(&ihp->hba_sess_list_rwlock); 2474 2475 /* 2476 * If rtn is zero then we have found an 2477 * existing session. Use the session name to 2478 * do param lookup. If rtn is non-zero then 2479 * create a targetparam object and use its name 2480 * for param lookup. 2481 */ 2482 if (rtn == 0) { 2483 name = isp->sess_name; 2484 } else { 2485 name = 2486 iscsi_targetparam_get_name(chap->c_oid); 2487 rtn = 0; 2488 } 2489 2490 if (name == NULL) { 2491 rw_exit( 2492 &ihp->hba_sess_list_rwlock); 2493 rtn = EFAULT; 2494 break; 2495 } 2496 2497 if (persistent_chap_clear( 2498 (char *)name) == B_FALSE) { 2499 rtn = EIO; 2500 } 2501 2502 /* 2503 * Clear out session chap password if we found a 2504 * session above. 2505 */ 2506 if (isp != NULL) { 2507 (void) memset(isp->sess_auth.password_in, 2508 0, iscsiAuthStringMaxLength); 2509 isp->sess_auth.password_length_in = 0; 2510 } 2511 2512 } 2513 2514 kmem_free(chap, sizeof (*chap)); 2515 break; 2516 2517 /* 2518 * ISCSI_STATIC_GET - 2519 */ 2520 case ISCSI_STATIC_GET: 2521 ispp = (iscsi_static_property_t *)kmem_alloc( 2522 sizeof (*ispp), KM_SLEEP); 2523 2524 if (ddi_copyin((caddr_t)arg, ispp, sizeof (*ispp), mode)) { 2525 rtn = EFAULT; 2526 kmem_free(ispp, sizeof (*ispp)); 2527 break; 2528 } 2529 2530 if (ispp->p_vers != ISCSI_INTERFACE_VERSION) { 2531 rtn = EINVAL; 2532 kmem_free(ispp, sizeof (*ispp)); 2533 break; 2534 } 2535 2536 { 2537 void *v = NULL; 2538 boolean_t found = B_FALSE; 2539 2540 persistent_static_addr_lock(); 2541 while (persistent_static_addr_next(&v, 2542 (char *)ispp->p_name, &e) == B_TRUE) { 2543 2544 if (ispp->p_oid == e.e_oid) { 2545 /* 2546 * In case there are multiple 2547 * addresses associated with the 2548 * given target OID, pick the first 2549 * one. 2550 */ 2551 iscsi_addr_t *ap; 2552 2553 ap = &(ispp->p_addr_list.al_addrs[0]); 2554 ap->a_port = e.e_port; 2555 ap->a_addr.i_insize = e.e_insize; 2556 bcopy(e.e_u.u_in6.s6_addr, 2557 ap->a_addr.i_addr.in6.s6_addr, 2558 e.e_insize); 2559 ispp->p_name_len = 2560 strlen((char *)ispp->p_name); 2561 ispp->p_addr_list.al_tpgt = e.e_tpgt; 2562 ispp->p_addr_list.al_out_cnt = 1; 2563 2564 found = B_TRUE; 2565 break; 2566 } 2567 } 2568 persistent_static_addr_unlock(); 2569 2570 if (found == B_TRUE) { 2571 rtn = ddi_copyout(ispp, (caddr_t)arg, 2572 sizeof (*ispp), mode); 2573 } else { 2574 rtn = ENOENT; 2575 } 2576 } 2577 kmem_free(ispp, sizeof (*ispp)); 2578 2579 break; 2580 2581 /* 2582 * ISCSI_STATIC_SET - 2583 */ 2584 case ISCSI_STATIC_SET: 2585 target = iscsi_ioctl_copyin((caddr_t)arg, mode, 2586 sizeof (*target)); 2587 if (target == NULL) { 2588 rtn = EFAULT; 2589 break; 2590 } 2591 2592 if ((target->te_entry.e_vers != ISCSI_INTERFACE_VERSION) || 2593 (target->te_entry.e_insize == 0)) { 2594 kmem_free(target, sizeof (*target)); 2595 rtn = EINVAL; 2596 break; 2597 } 2598 2599 /* Check if the target's already been added */ 2600 { 2601 boolean_t static_target_found = B_FALSE; 2602 void *v = NULL; 2603 2604 name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 2605 persistent_static_addr_lock(); 2606 while (persistent_static_addr_next(&v, (char *)name, 2607 &e) == B_TRUE) { 2608 /* 2609 * MC/S - Need to check IP address and port 2610 * number as well when we support MC/S. 2611 */ 2612 if ((strncmp((char *)name, 2613 (char *)target->te_name, 2614 ISCSI_MAX_NAME_LEN) == 0) && 2615 (target->te_entry.e_tpgt == e.e_tpgt) && 2616 (target->te_entry.e_insize == e.e_insize) && 2617 (bcmp(&target->te_entry.e_u, &e.e_u, 2618 e.e_insize) == 0)) { 2619 /* 2620 * We don't allow MC/S for now but 2621 * we do allow adding the same target 2622 * with different TPGTs (hence, 2623 * different sessions). 2624 */ 2625 static_target_found = B_TRUE; 2626 break; 2627 } 2628 } 2629 persistent_static_addr_unlock(); 2630 kmem_free(name, ISCSI_MAX_NAME_LEN); 2631 2632 if (static_target_found == B_TRUE) { 2633 /* Duplicate entry */ 2634 kmem_free(target, sizeof (*target)); 2635 rtn = EEXIST; 2636 break; 2637 } 2638 } 2639 2640 if (target->te_entry.e_oid == ISCSI_OID_NOTSET) { 2641 mutex_enter(&iscsi_oid_mutex); 2642 target->te_entry.e_oid = iscsi_oid++; 2643 mutex_exit(&iscsi_oid_mutex); 2644 } 2645 2646 persistent_static_addr_lock(); 2647 if (persistent_static_addr_set((char *)target->te_name, 2648 &target->te_entry) == B_FALSE) { 2649 persistent_static_addr_unlock(); 2650 kmem_free(target, sizeof (*target)); 2651 rtn = EIO; 2652 break; 2653 } 2654 persistent_static_addr_unlock(); 2655 2656 /* 2657 * If Static Targets discovery is enabled, then add 2658 * target to discovery queue. Otherwise, just create 2659 * the session for potential future use. 2660 */ 2661 method = persistent_disc_meth_get(); 2662 if (method & iSCSIDiscoveryMethodStatic) { 2663 iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodStatic); 2664 (void) iscsid_login_tgt(ihp, (char *)target->te_name, 2665 iSCSIDiscoveryMethodStatic, NULL); 2666 } 2667 2668 rtn = iscsi_ioctl_copyout(target, sizeof (*target), 2669 (caddr_t)arg, mode); 2670 break; 2671 2672 /* 2673 * ISCSI_STATIC_CLEAR - 2674 */ 2675 case ISCSI_STATIC_CLEAR: 2676 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2677 rtn = EFAULT; 2678 break; 2679 } else if ((e.e_vers != ISCSI_INTERFACE_VERSION) || 2680 (e.e_insize == 0)) { 2681 rtn = EINVAL; 2682 break; 2683 } 2684 2685 { 2686 boolean_t found = B_FALSE; 2687 void *v = NULL; 2688 entry_t tmp_e; 2689 char *name = NULL; 2690 2691 name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 2692 2693 /* Find name for matching static_tgt oid */ 2694 persistent_static_addr_lock(); 2695 while (persistent_static_addr_next(&v, 2696 (char *)name, &tmp_e) == B_TRUE) { 2697 if (e.e_oid == tmp_e.e_oid) { 2698 found = B_TRUE; 2699 break; 2700 } 2701 } 2702 2703 /* If static_tgt found logout and remove it */ 2704 if (found == B_TRUE) { 2705 2706 iscsid_addr_to_sockaddr(tmp_e.e_insize, 2707 &tmp_e.e_u, tmp_e.e_port, &addr_dsc.sin); 2708 2709 persistent_static_addr_unlock(); 2710 2711 /* 2712 * If discovery in progress, try few times 2713 * before return busy 2714 */ 2715 retry = 0; 2716 mutex_enter(&ihp->hba_discovery_events_mutex); 2717 while (ihp->hba_discovery_in_progress == 2718 B_TRUE) { 2719 if (++retry == 5) { 2720 rtn = EBUSY; 2721 break; 2722 } 2723 mutex_exit( 2724 &ihp->hba_discovery_events_mutex); 2725 delay(SEC_TO_TICK( 2726 ISCSI_DISC_DELAY)); 2727 mutex_enter( 2728 &ihp->hba_discovery_events_mutex); 2729 } 2730 /* remove from persistent store */ 2731 if (rtn == 0 && persistent_static_addr_clear( 2732 e.e_oid) == B_FALSE) { 2733 rtn = EIO; 2734 } 2735 mutex_exit(&ihp->hba_discovery_events_mutex); 2736 2737 if (rtn != 0) { 2738 kmem_free(name, ISCSI_MAX_NAME_LEN); 2739 break; 2740 } 2741 2742 /* Attempt to logout of target */ 2743 if (iscsid_del(ihp, (char *)name, 2744 iSCSIDiscoveryMethodStatic, &addr_dsc.sin) 2745 == B_FALSE) { 2746 persistent_static_addr_lock(); 2747 2748 /* 2749 * Restore static_tgt to 2750 * persistent store 2751 */ 2752 if (persistent_static_addr_set( 2753 (char *)name, 2754 &e) == B_FALSE) { 2755 cmn_err(CE_WARN, "Failed to " 2756 "restore static target " 2757 "address after logout " 2758 "target failure."); 2759 } 2760 persistent_static_addr_unlock(); 2761 rtn = EBUSY; 2762 } else { 2763 iscsid_poke_discovery(ihp, 2764 iSCSIDiscoveryMethodStatic); 2765 (void) iscsid_login_tgt(ihp, 2766 (char *)name, 2767 iSCSIDiscoveryMethodStatic, 2768 NULL); 2769 2770 } 2771 } else { 2772 persistent_static_addr_unlock(); 2773 rtn = EIO; 2774 } 2775 kmem_free(name, ISCSI_MAX_NAME_LEN); 2776 } 2777 break; 2778 2779 /* 2780 * ISCSI_ISNS_SERVER_ADDR_SET: 2781 */ 2782 case ISCSI_ISNS_SERVER_ADDR_SET: 2783 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2784 rtn = EFAULT; 2785 break; 2786 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2787 rtn = EINVAL; 2788 break; 2789 } 2790 2791 if (persistent_isns_addr_set(&e) == B_FALSE) { 2792 rtn = EIO; 2793 break; 2794 } 2795 2796 /* 2797 * If iSNS server discovery is enabled, then kickoff 2798 * discovery of the targets advertised by the recently 2799 * added iSNS server address. 2800 */ 2801 method = persistent_disc_meth_get(); 2802 if (method & iSCSIDiscoveryMethodISNS) { 2803 initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, 2804 KM_SLEEP); 2805 if (persistent_initiator_name_get(initiator_node_name, 2806 ISCSI_MAX_NAME_LEN) != B_TRUE) { 2807 kmem_free(initiator_node_name, 2808 ISCSI_MAX_NAME_LEN); 2809 initiator_node_name = NULL; 2810 rtn = EIO; 2811 break; 2812 } 2813 if (strlen(initiator_node_name) == 0) { 2814 kmem_free(initiator_node_name, 2815 ISCSI_MAX_NAME_LEN); 2816 initiator_node_name = NULL; 2817 rtn = EIO; 2818 break; 2819 } 2820 2821 initiator_node_alias = kmem_zalloc(ISCSI_MAX_NAME_LEN, 2822 KM_SLEEP); 2823 if (persistent_alias_name_get(initiator_node_alias, 2824 ISCSI_MAX_NAME_LEN) != B_TRUE) { 2825 initiator_node_alias[0] = '\0'; 2826 } 2827 2828 /* 2829 * Register this initiator node against this iSNS 2830 * server. 2831 */ 2832 (void) isns_reg_one_server(&e, ihp->hba_isid, 2833 (uint8_t *)initiator_node_name, 2834 ISCSI_MAX_NAME_LEN, 2835 (uint8_t *)initiator_node_alias, 2836 ISCSI_MAX_NAME_LEN, 2837 ISNS_INITIATOR_NODE_TYPE, 2838 isns_scn_callback); 2839 2840 iscsid_do_isns_query_one_server(ihp, &e); 2841 2842 iscsid_addr_to_sockaddr(e.e_insize, 2843 &e.e_u, e.e_port, &addr_dsc.sin); 2844 2845 (void) iscsid_login_tgt(ihp, NULL, 2846 iSCSIDiscoveryMethodISNS, 2847 &addr_dsc.sin); 2848 2849 /* Done using the name and alias - free them. */ 2850 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 2851 initiator_node_name = NULL; 2852 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 2853 initiator_node_alias = NULL; 2854 } 2855 break; 2856 2857 /* 2858 * ISCSI_DISCOVERY_ADDR_SET: 2859 */ 2860 case ISCSI_DISCOVERY_ADDR_SET: 2861 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 2862 rtn = EFAULT; 2863 break; 2864 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 2865 rtn = EINVAL; 2866 break; 2867 } 2868 2869 if (e.e_oid == ISCSI_OID_NOTSET) { 2870 mutex_enter(&iscsi_oid_mutex); 2871 e.e_oid = iscsi_oid++; 2872 mutex_exit(&iscsi_oid_mutex); 2873 } 2874 2875 if (persistent_disc_addr_set(&e) == B_FALSE) { 2876 rtn = EIO; 2877 break; 2878 } 2879 2880 /* 2881 * If Send Targets discovery is enabled, then kickoff 2882 * discovery of the targets advertised by the recently 2883 * added discovery address. 2884 */ 2885 method = persistent_disc_meth_get(); 2886 if (method & iSCSIDiscoveryMethodSendTargets) { 2887 2888 iscsid_addr_to_sockaddr(e.e_insize, 2889 &e.e_u, e.e_port, &addr_dsc.sin); 2890 iscsid_do_sendtgts(&e); 2891 (void) iscsid_login_tgt(ihp, NULL, 2892 iSCSIDiscoveryMethodSendTargets, 2893 &addr_dsc.sin); 2894 2895 } 2896 break; 2897 2898 /* 2899 * ISCSI_DISCOVERY_ADDR_LIST_GET 2900 */ 2901 case ISCSI_DISCOVERY_ADDR_LIST_GET: 2902 /* copyin user args */ 2903 if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { 2904 rtn = EFAULT; 2905 break; 2906 } 2907 2908 if (ial.al_vers != ISCSI_INTERFACE_VERSION) { 2909 rtn = EINVAL; 2910 break; 2911 } 2912 2913 list_space = sizeof (iscsi_addr_list_t); 2914 if (ial.al_in_cnt != 0) { 2915 list_space += (sizeof (iscsi_addr_t) * 2916 (ial.al_in_cnt - 1)); 2917 } 2918 2919 ialp = kmem_zalloc(list_space, KM_SLEEP); 2920 bcopy(&ial, ialp, sizeof (iscsi_addr_list_t)); 2921 2922 void_p = NULL; 2923 ialp->al_out_cnt = 0; 2924 persistent_disc_addr_lock(); 2925 while (persistent_disc_addr_next(&void_p, &e) == B_TRUE) { 2926 if (ialp->al_out_cnt < ialp->al_in_cnt) { 2927 int i = ialp->al_out_cnt; 2928 iscsi_addr_t *addr = &ialp->al_addrs[i]; 2929 2930 addr->a_port = e.e_port; 2931 addr->a_addr.i_insize = e.e_insize; 2932 addr->a_oid = e.e_oid; 2933 2934 if (e.e_insize == sizeof (struct in_addr)) { 2935 /* IPv4 */ 2936 addr->a_addr.i_addr.in4.s_addr = 2937 e.e_u.u_in4.s_addr; 2938 } else if (e.e_insize == 2939 sizeof (struct in6_addr)) { 2940 /* IPv6 */ 2941 bcopy(e.e_u.u_in6.s6_addr, 2942 addr->a_addr.i_addr.in6.s6_addr, 2943 16); 2944 } 2945 } 2946 ialp->al_out_cnt++; 2947 } 2948 persistent_disc_addr_unlock(); 2949 2950 rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); 2951 kmem_free(ialp, list_space); 2952 break; 2953 2954 /* 2955 * ISCSI_ISNS_SERVER_ADDR_LIST_GET 2956 */ 2957 case ISCSI_ISNS_SERVER_ADDR_LIST_GET: 2958 /* copyin user args */ 2959 if (ddi_copyin((caddr_t)arg, &ial, sizeof (ial), mode)) { 2960 rtn = EFAULT; 2961 break; 2962 } 2963 2964 if (ial.al_vers != ISCSI_INTERFACE_VERSION) { 2965 rtn = EINVAL; 2966 break; 2967 } 2968 2969 list_space = sizeof (iscsi_addr_list_t); 2970 if (ial.al_in_cnt != 0) { 2971 list_space += (sizeof (iscsi_addr_t) * 2972 (ial.al_in_cnt - 1)); 2973 } 2974 2975 ialp = kmem_zalloc(list_space, KM_SLEEP); 2976 bcopy(&ial, ialp, sizeof (iscsi_addr_list_t)); 2977 2978 void_p = NULL; 2979 ialp->al_out_cnt = 0; 2980 persistent_isns_addr_lock(); 2981 while (persistent_isns_addr_next(&void_p, &e) == B_TRUE) { 2982 if (ialp->al_out_cnt < ialp->al_in_cnt) { 2983 int i = ialp->al_out_cnt; 2984 iscsi_addr_t *addr = &ialp->al_addrs[i]; 2985 2986 addr->a_port = e.e_port; 2987 addr->a_addr.i_insize = e.e_insize; 2988 if (e.e_insize == sizeof (struct in_addr)) { 2989 /* IPv4 */ 2990 addr->a_addr.i_addr.in4.s_addr = 2991 e.e_u.u_in4.s_addr; 2992 } else if (e.e_insize == 2993 sizeof (struct in6_addr)) { 2994 /* IPv6 */ 2995 bcopy(e.e_u.u_in6.s6_addr, 2996 addr->a_addr.i_addr.in6.s6_addr, 2997 16); 2998 } 2999 } 3000 ialp->al_out_cnt++; 3001 } 3002 persistent_isns_addr_unlock(); 3003 3004 rtn = ddi_copyout(ialp, (caddr_t)arg, list_space, mode); 3005 kmem_free(ialp, list_space); 3006 break; 3007 3008 /* 3009 * ISCSI_DISCOVERY_ADDR_CLEAR: 3010 */ 3011 case ISCSI_DISCOVERY_ADDR_CLEAR: 3012 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 3013 rtn = EFAULT; 3014 break; 3015 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 3016 rtn = EINVAL; 3017 break; 3018 } 3019 3020 iscsid_addr_to_sockaddr(e.e_insize, 3021 &e.e_u, e.e_port, &addr_dsc.sin); 3022 3023 /* If discovery in progress, try few times before return busy */ 3024 retry = 0; 3025 mutex_enter(&ihp->hba_discovery_events_mutex); 3026 while (ihp->hba_discovery_in_progress == B_TRUE) { 3027 if (++retry == 5) { 3028 rtn = EBUSY; 3029 break; 3030 } 3031 mutex_exit(&ihp->hba_discovery_events_mutex); 3032 delay(SEC_TO_TICK(ISCSI_DISC_DELAY)); 3033 mutex_enter(&ihp->hba_discovery_events_mutex); 3034 } 3035 3036 /* 3037 * Clear discovery address first, so that any bus config 3038 * will ignore this discovery address 3039 */ 3040 if (rtn == 0 && persistent_disc_addr_clear(&e) == B_FALSE) { 3041 rtn = EIO; 3042 } 3043 mutex_exit(&ihp->hba_discovery_events_mutex); 3044 3045 if (rtn != 0) { 3046 break; 3047 } 3048 /* Attempt to logout of associated targets */ 3049 if (iscsid_del(ihp, NULL, 3050 iSCSIDiscoveryMethodSendTargets, &addr_dsc.sin) == 3051 B_FALSE) { 3052 /* Failure!, restore the discovery addr. */ 3053 if (persistent_disc_addr_set(&e) == B_FALSE) { 3054 cmn_err(CE_WARN, "Failed to restore sendtgt " 3055 "discovery address after logout associated " 3056 "targets failures."); 3057 } 3058 rtn = EBUSY; 3059 } 3060 break; 3061 3062 /* 3063 * ISCSI_ISNS_SERVER_CLEAR: 3064 */ 3065 case ISCSI_ISNS_SERVER_ADDR_CLEAR: 3066 if (ddi_copyin((caddr_t)arg, &e, sizeof (e), mode)) { 3067 rtn = EFAULT; 3068 break; 3069 } else if (e.e_vers != ISCSI_INTERFACE_VERSION) { 3070 rtn = EINVAL; 3071 break; 3072 } 3073 3074 iscsid_addr_to_sockaddr(e.e_insize, 3075 &e.e_u, e.e_port, &addr_dsc.sin); 3076 3077 /* If discovery in progress, try few times before return busy */ 3078 retry = 0; 3079 mutex_enter(&ihp->hba_discovery_events_mutex); 3080 while (ihp->hba_discovery_in_progress == B_TRUE) { 3081 if (++retry == 5) { 3082 rtn = EBUSY; 3083 break; 3084 } 3085 mutex_exit(&ihp->hba_discovery_events_mutex); 3086 delay(SEC_TO_TICK(ISCSI_DISC_DELAY)); 3087 mutex_enter(&ihp->hba_discovery_events_mutex); 3088 } 3089 3090 /* 3091 * Clear isns server address first, so that any bus config 3092 * will ignore any target registerd on this isns server 3093 */ 3094 if (rtn == 0 && persistent_isns_addr_clear(&e) == B_FALSE) { 3095 rtn = EIO; 3096 } 3097 mutex_exit(&ihp->hba_discovery_events_mutex); 3098 3099 if (rtn != 0) { 3100 break; 3101 } 3102 3103 /* Attempt logout of associated targets */ 3104 if (iscsid_del(ihp, NULL, iSCSIDiscoveryMethodISNS, 3105 &addr_dsc.sin) == B_FALSE) { 3106 /* Failure!, restore the isns server addr. */ 3107 3108 if (persistent_isns_addr_set(&e) == B_FALSE) { 3109 cmn_err(CE_WARN, "Failed to restore isns server" 3110 " address after logout associated targets" 3111 " failures."); 3112 } 3113 rtn = EBUSY; 3114 } else { 3115 method = persistent_disc_meth_get(); 3116 if (method & iSCSIDiscoveryMethodISNS) { 3117 boolean_t is_last_isns_server_b = 3118 B_FALSE; 3119 int isns_server_count = 0; 3120 void *void_p = NULL; 3121 3122 /* 3123 * Check if the last iSNS server's been 3124 * removed. 3125 */ 3126 { 3127 entry_t tmp_e; 3128 persistent_isns_addr_lock(); 3129 while (persistent_isns_addr_next( 3130 &void_p, &tmp_e) == B_TRUE) { 3131 isns_server_count++; 3132 } 3133 } 3134 persistent_isns_addr_unlock(); 3135 if (isns_server_count == 0) { 3136 is_last_isns_server_b = B_TRUE; 3137 } 3138 3139 /* 3140 * Deregister this node from this iSNS 3141 * server. 3142 */ 3143 initiator_node_name = kmem_zalloc( 3144 ISCSI_MAX_NAME_LEN, KM_SLEEP); 3145 if (persistent_initiator_name_get( 3146 initiator_node_name, 3147 ISCSI_MAX_NAME_LEN) == B_TRUE) { 3148 3149 if (strlen(initiator_node_name) > 0) { 3150 (void) isns_dereg_one_server( 3151 &e, (uint8_t *) 3152 initiator_node_name, 3153 is_last_isns_server_b); 3154 } 3155 } 3156 kmem_free(initiator_node_name, 3157 ISCSI_MAX_NAME_LEN); 3158 initiator_node_name = NULL; 3159 } 3160 } 3161 break; 3162 3163 /* 3164 * ISCSI_DISCOVERY_SET - 3165 */ 3166 case ISCSI_DISCOVERY_SET: 3167 if (ddi_copyin((caddr_t)arg, &method, sizeof (method), mode)) { 3168 rtn = EFAULT; 3169 break; 3170 } 3171 3172 if (persistent_disc_meth_set(method) == B_FALSE) { 3173 rtn = EIO; 3174 } else { 3175 (void) iscsid_enable_discovery(ihp, method, B_FALSE); 3176 iscsid_poke_discovery(ihp, method); 3177 (void) iscsid_login_tgt(ihp, NULL, method, NULL); 3178 } 3179 break; 3180 3181 /* 3182 * ISCSI_DISCOVERY_GET - 3183 */ 3184 case ISCSI_DISCOVERY_GET: 3185 method = persistent_disc_meth_get(); 3186 rtn = ddi_copyout(&method, (caddr_t)arg, 3187 sizeof (method), mode); 3188 break; 3189 3190 /* 3191 * ISCSI_DISCOVERY_CLEAR - 3192 */ 3193 case ISCSI_DISCOVERY_CLEAR: 3194 if (ddi_copyin((caddr_t)arg, &method, sizeof (method), mode)) { 3195 rtn = EFAULT; 3196 break; 3197 } 3198 3199 /* If discovery in progress, try few times before return busy */ 3200 retry = 0; 3201 mutex_enter(&ihp->hba_discovery_events_mutex); 3202 while (ihp->hba_discovery_in_progress == B_TRUE) { 3203 if (++retry == 5) { 3204 rtn = EBUSY; 3205 break; 3206 } 3207 mutex_exit(&ihp->hba_discovery_events_mutex); 3208 delay(SEC_TO_TICK(ISCSI_DISC_DELAY)); 3209 mutex_enter(&ihp->hba_discovery_events_mutex); 3210 } 3211 3212 /* 3213 * Clear discovery first, so that any bus config or 3214 * discovery requests will ignore this discovery method 3215 */ 3216 if (rtn == 0 && persistent_disc_meth_clear(method) == B_FALSE) { 3217 rtn = EIO; 3218 } 3219 mutex_exit(&ihp->hba_discovery_events_mutex); 3220 3221 if (rtn != 0) { 3222 break; 3223 } 3224 3225 /* Attempt to logout from all associated targets */ 3226 if (iscsid_disable_discovery(ihp, method) == B_FALSE) { 3227 /* Failure!, reset the discovery */ 3228 if (persistent_disc_meth_set(method) == B_FALSE) { 3229 cmn_err(CE_WARN, "Failed to reset discovery " 3230 "method after discovery disable failure."); 3231 } 3232 rtn = EBUSY; 3233 } 3234 break; 3235 3236 /* 3237 * ISCSI_DISCOVERY_PROPS - 3238 */ 3239 case ISCSI_DISCOVERY_PROPS: 3240 iscsid_props(&discovery_props); 3241 if (ddi_copyout(&discovery_props, (caddr_t)arg, 3242 sizeof (discovery_props), mode)) 3243 rtn = EFAULT; 3244 break; 3245 3246 /* 3247 * ISCSI_LUN_OID_LIST -- 3248 */ 3249 case ISCSI_LUN_OID_LIST_GET: 3250 ll = (iscsi_lun_list_t *)kmem_alloc(sizeof (*ll), KM_SLEEP); 3251 if (ddi_copyin((caddr_t)arg, ll, sizeof (*ll), mode)) { 3252 rtn = EFAULT; 3253 kmem_free(ll, sizeof (*ll)); 3254 break; 3255 } 3256 3257 if (ll->ll_vers != ISCSI_INTERFACE_VERSION) { 3258 rtn = EINVAL; 3259 kmem_free(ll, sizeof (*ll)); 3260 break; 3261 } 3262 3263 /* 3264 * Find out how much space the user has allocated in their 3265 * structure. Match the same space for our structure. 3266 */ 3267 lun_sz = sizeof (iscsi_lun_list_t); 3268 if (ll->ll_in_cnt > 0) { 3269 lun_sz += (ll->ll_in_cnt - 1) * sizeof (iscsi_if_lun_t); 3270 } 3271 3272 llp = kmem_zalloc(lun_sz, KM_SLEEP); 3273 bcopy(ll, llp, sizeof (*ll)); 3274 kmem_free(ll, sizeof (*ll)); 3275 3276 /* 3277 * Check to see if oid references a target-param oid. If so, 3278 * find the associated session oid before getting lu list. 3279 */ 3280 if (iscsi_targetparam_get_name(llp->ll_tgt_oid) != NULL) { 3281 for (isp = ihp->hba_sess_list; isp; 3282 isp = isp->sess_next) { 3283 if (isp->sess_target_oid == llp->ll_tgt_oid) { 3284 target_oid = isp->sess_oid; 3285 break; 3286 } 3287 } 3288 } else { 3289 target_oid = llp->ll_tgt_oid; 3290 } 3291 3292 3293 /* 3294 * Look at the LUNs attached to the specified target. If there 3295 * is space in the user structure save that information locally. 3296 * Always add up the count to the total. By always adding 3297 * the count this code can be used if ll_in_cnt == 0 and 3298 * the user just wishes to know the appropriate size to 3299 * allocate. 3300 */ 3301 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3302 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 3303 if ((llp->ll_all_tgts == B_FALSE) && 3304 (isp->sess_oid != target_oid)) { 3305 continue; 3306 } 3307 rw_enter(&isp->sess_lun_list_rwlock, RW_READER); 3308 for (ilp = isp->sess_lun_list; ilp; 3309 ilp = ilp->lun_next) { 3310 if ((ilp->lun_state & 3311 ISCSI_LUN_STATE_ONLINE) && 3312 !(ilp->lun_state & 3313 ISCSI_LUN_STATE_INVALID)) { 3314 if (llp->ll_out_cnt < 3315 llp->ll_in_cnt) { 3316 iscsi_if_lun_t *lp; 3317 lp = &llp->ll_luns[ 3318 llp->ll_out_cnt]; 3319 3320 lp->l_tgt_oid = 3321 isp->sess_oid; 3322 lp->l_oid = ilp->lun_oid; 3323 lp->l_num = ilp->lun_num; 3324 } 3325 llp->ll_out_cnt++; 3326 } 3327 } 3328 rw_exit(&isp->sess_lun_list_rwlock); 3329 } 3330 rw_exit(&ihp->hba_sess_list_rwlock); 3331 3332 if (ddi_copyout(llp, (caddr_t)arg, lun_sz, mode)) { 3333 rtn = EFAULT; 3334 } 3335 3336 kmem_free(llp, lun_sz); 3337 break; 3338 3339 /* 3340 * ISCSI_LUN_PROPS_GET -- 3341 */ 3342 case ISCSI_LUN_PROPS_GET: 3343 lun = (iscsi_lun_props_t *)kmem_zalloc(sizeof (*lun), KM_SLEEP); 3344 if (ddi_copyin((caddr_t)arg, lun, sizeof (*lun), mode)) { 3345 rtn = EFAULT; 3346 kmem_free(lun, sizeof (*lun)); 3347 break; 3348 } 3349 3350 if (lun->lp_vers != ISCSI_INTERFACE_VERSION) { 3351 rtn = EINVAL; 3352 kmem_free(lun, sizeof (*lun)); 3353 break; 3354 } 3355 3356 /* 3357 * For the target specified, find the LUN specified and 3358 * return its properties 3359 */ 3360 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3361 rtn = iscsi_sess_get(lun->lp_tgt_oid, ihp, &isp); 3362 if (rtn != 0) { 3363 rw_exit(&ihp->hba_sess_list_rwlock); 3364 rtn = EFAULT; 3365 kmem_free(lun, sizeof (*lun)); 3366 break; 3367 } 3368 rtn = EINVAL; /* Set bad rtn, correct only if found */ 3369 rw_enter(&isp->sess_lun_list_rwlock, RW_READER); 3370 for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { 3371 if (ilp->lun_oid == lun->lp_oid) { 3372 lun->lp_num = ilp->lun_num; 3373 lun->lp_status = LunValid; 3374 lun->lp_time_online = ilp->lun_time_online; 3375 3376 if (ilp->lun_pip != NULL) { 3377 lun_dip = mdi_pi_get_client( 3378 ilp->lun_pip); 3379 } else { 3380 lun_dip = ilp->lun_dip; 3381 } 3382 3383 if (lun_dip != NULL && 3384 ((i_ddi_devi_attached(lun_dip)) || 3385 (ddi_get_devstate(lun_dip) == 3386 DDI_DEVSTATE_UP))) { 3387 (void) ddi_pathname(lun_dip, 3388 lun->lp_pathname); 3389 } else { 3390 /* 3391 * The LUN is not exported to the 3392 * OS yet. It is in the process 3393 * of being added. 3394 */ 3395 lun->lp_status = LunDoesNotExist; 3396 } 3397 bcopy(ilp->lun_vid, lun->lp_vid, 3398 sizeof (lun->lp_vid)); 3399 bcopy(ilp->lun_pid, lun->lp_pid, 3400 sizeof (lun->lp_pid)); 3401 rtn = ddi_copyout(lun, (caddr_t)arg, 3402 sizeof (*lun), mode); 3403 if (rtn == -1) { 3404 rtn = EFAULT; 3405 } 3406 break; 3407 } 3408 } 3409 rw_exit(&isp->sess_lun_list_rwlock); 3410 rw_exit(&ihp->hba_sess_list_rwlock); 3411 3412 kmem_free(lun, sizeof (*lun)); 3413 break; 3414 3415 /* 3416 * ISCSI_CONN_OID_LIST_GET -- 3417 */ 3418 #define ISCSIIOCOLGC iscsi_ioctl_conn_oid_list_get_copyout 3419 case ISCSI_CONN_OID_LIST_GET: 3420 { 3421 iscsi_conn_list_t *cl; 3422 3423 /* Asuume the worst */ 3424 rtn = EFAULT; 3425 3426 /* Copy the input argument into kernel world. */ 3427 cl = iscsi_ioctl_conn_oid_list_get_copyin( 3428 (caddr_t)arg, 3429 mode); 3430 if (cl != NULL) { 3431 if (iscsi_ioctl_conn_oid_list_get(ihp, cl) == 3432 B_TRUE) { 3433 rtn = 3434 ISCSIIOCOLGC( 3435 cl, (caddr_t)arg, mode); 3436 } 3437 } 3438 break; 3439 } 3440 #undef ISCSIIOCOLGC 3441 /* 3442 * ISCSI_CONN_OID_LIST_GET -- 3443 */ 3444 case ISCSI_CONN_PROPS_GET: 3445 { 3446 iscsi_conn_props_t *cp; 3447 3448 /* Asuume the worst */ 3449 rtn = EFAULT; 3450 3451 /* Copy the input argument into kernel world. */ 3452 cp = iscsi_ioctl_copyin( 3453 (caddr_t)arg, 3454 mode, 3455 sizeof (iscsi_conn_props_t)); 3456 3457 if (cp != NULL) { 3458 /* Get the propereties. */ 3459 if (iscsi_ioctl_conn_props_get(ihp, cp) == 3460 B_TRUE) { 3461 rtn = 3462 iscsi_ioctl_copyout( 3463 cp, 3464 sizeof (*cp), 3465 (caddr_t)arg, 3466 mode); 3467 } else { 3468 kmem_free(cp, sizeof (*cp)); 3469 cp = NULL; 3470 } 3471 } 3472 break; 3473 } 3474 3475 /* 3476 * ISCSI_RADIUS_GET - 3477 */ 3478 case ISCSI_RADIUS_GET: 3479 { 3480 iscsi_nvfile_status_t status; 3481 3482 radius = (iscsi_radius_props_t *)kmem_zalloc(sizeof (*radius), 3483 KM_SLEEP); 3484 if (ddi_copyin((caddr_t)arg, radius, sizeof (*radius), mode)) { 3485 kmem_free(radius, sizeof (*radius)); 3486 rtn = EFAULT; 3487 break; 3488 } else if (radius->r_vers != ISCSI_INTERFACE_VERSION) { 3489 kmem_free(radius, sizeof (*radius)); 3490 rtn = EINVAL; 3491 break; 3492 } 3493 3494 old_oid = radius->r_oid; 3495 3496 if (radius->r_oid == ihp->hba_oid) { 3497 name = ihp->hba_name; 3498 } else { 3499 /* 3500 * RADIUS configuration should be done on a per 3501 * initiator basis. 3502 */ 3503 kmem_free(radius, sizeof (*radius)); 3504 rtn = EINVAL; 3505 break; 3506 } 3507 3508 status = persistent_radius_get(radius); 3509 if (status == ISCSI_NVFILE_SUCCESS) { 3510 /* 3511 * Restore the value for overridden (and bogus) oid. 3512 */ 3513 radius->r_oid = old_oid; 3514 rtn = ddi_copyout(radius, (caddr_t)arg, 3515 sizeof (*radius), mode); 3516 } else if (status == ISCSI_NVFILE_NAMEVAL_NOT_FOUND) { 3517 rtn = ENOENT; 3518 } else { 3519 rtn = EIO; 3520 } 3521 kmem_free(radius, sizeof (*radius)); 3522 break; 3523 } 3524 3525 /* 3526 * ISCSI_RADIUS_SET - 3527 */ 3528 case ISCSI_RADIUS_SET: 3529 radius = (iscsi_radius_props_t *)kmem_zalloc(sizeof (*radius), 3530 KM_SLEEP); 3531 if (ddi_copyin((caddr_t)arg, radius, sizeof (*radius), mode)) { 3532 rtn = EFAULT; 3533 kmem_free(radius, sizeof (*radius)); 3534 break; 3535 } else if (radius->r_vers != ISCSI_INTERFACE_VERSION) { 3536 rtn = EINVAL; 3537 kmem_free(radius, sizeof (*radius)); 3538 break; 3539 } 3540 3541 if (radius->r_oid == ihp->hba_oid) { 3542 name = ihp->hba_name; 3543 } else { 3544 /* 3545 * RADIUS configuration should be done on a per 3546 * initiator basis. 3547 */ 3548 kmem_free(radius, sizeof (*radius)); 3549 rtn = EINVAL; 3550 break; 3551 } 3552 3553 if (persistent_radius_set(radius) == B_FALSE) { 3554 rtn = EIO; 3555 } 3556 3557 kmem_free(radius, sizeof (*radius)); 3558 break; 3559 3560 /* 3561 * ISCSI_AUTH_GET - 3562 */ 3563 case ISCSI_AUTH_GET: 3564 auth = (iscsi_auth_props_t *)kmem_zalloc(sizeof (*auth), 3565 KM_SLEEP); 3566 if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { 3567 kmem_free(auth, sizeof (*auth)); 3568 rtn = EFAULT; 3569 break; 3570 } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { 3571 kmem_free(auth, sizeof (*auth)); 3572 rtn = EINVAL; 3573 break; 3574 } 3575 3576 old_oid = auth->a_oid; 3577 3578 if (auth->a_oid == ihp->hba_oid) { 3579 name = ihp->hba_name; 3580 } else { 3581 3582 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3583 /* 3584 * If the oid does represent a session check to see 3585 * if it is a target oid. If so, return the target's 3586 * associated session. 3587 */ 3588 rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); 3589 if (rtn != 0) { 3590 rtn = iscsi_sess_get_by_target(auth->a_oid, 3591 ihp, &isp); 3592 } 3593 rw_exit(&ihp->hba_sess_list_rwlock); 3594 3595 /* 3596 * If rtn is zero then we have found an 3597 * existing session. Use the session name to 3598 * do param lookup. If rtn is non-zero then 3599 * create a targetparam object and use its name 3600 * for param lookup. 3601 */ 3602 if (rtn == 0) { 3603 name = isp->sess_name; 3604 } else { 3605 name = 3606 iscsi_targetparam_get_name(auth->a_oid); 3607 } 3608 } 3609 3610 if (name == NULL) { 3611 rtn = EFAULT; 3612 break; 3613 } 3614 3615 if (persistent_auth_get((char *)name, auth) == B_TRUE) { 3616 /* 3617 * Restore the value for overridden (and bogus) oid. 3618 */ 3619 auth->a_oid = old_oid; 3620 rtn = ddi_copyout(auth, (caddr_t)arg, 3621 sizeof (*auth), mode); 3622 } else { 3623 rtn = EIO; 3624 } 3625 3626 kmem_free(auth, sizeof (*auth)); 3627 break; 3628 3629 /* 3630 * ISCSI_AUTH_SET - 3631 */ 3632 case ISCSI_AUTH_SET: 3633 auth = (iscsi_auth_props_t *)kmem_zalloc(sizeof (*auth), 3634 KM_SLEEP); 3635 if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { 3636 kmem_free(auth, sizeof (*auth)); 3637 rtn = EFAULT; 3638 break; 3639 } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { 3640 kmem_free(auth, sizeof (*auth)); 3641 rtn = EINVAL; 3642 break; 3643 } 3644 3645 if (auth->a_oid == ihp->hba_oid) { 3646 name = ihp->hba_name; 3647 } else { 3648 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3649 /* 3650 * If the oid does represent a session check to see 3651 * if it is a target oid. If so, return the target's 3652 * associated session. 3653 */ 3654 rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); 3655 if (rtn != 0) { 3656 rtn = iscsi_sess_get_by_target(auth->a_oid, 3657 ihp, &isp); 3658 } 3659 rw_exit(&ihp->hba_sess_list_rwlock); 3660 3661 /* 3662 * If rtn is zero then we have found an 3663 * existing session. Use the session name to 3664 * do param lookup. If rtn is non-zero then 3665 * create a targetparam object and use its name 3666 * for param lookup. 3667 */ 3668 if (rtn == 0) { 3669 name = isp->sess_name; 3670 } else { 3671 name = 3672 iscsi_targetparam_get_name(auth->a_oid); 3673 rtn = 0; 3674 } 3675 } 3676 3677 if (name == NULL) { 3678 rtn = EFAULT; 3679 } else if (persistent_auth_set((char *)name, auth) 3680 == B_FALSE) { 3681 rtn = EIO; 3682 } 3683 3684 kmem_free(auth, sizeof (*auth)); 3685 break; 3686 3687 /* 3688 * ISCSI_AUTH_CLEAR - 3689 */ 3690 case ISCSI_AUTH_CLEAR: 3691 auth = (iscsi_auth_props_t *)kmem_alloc(sizeof (*auth), 3692 KM_SLEEP); 3693 if (ddi_copyin((caddr_t)arg, auth, sizeof (*auth), mode)) { 3694 kmem_free(auth, sizeof (*auth)); 3695 rtn = EFAULT; 3696 break; 3697 } else if (auth->a_vers != ISCSI_INTERFACE_VERSION) { 3698 kmem_free(auth, sizeof (*auth)); 3699 rtn = EINVAL; 3700 break; 3701 } 3702 3703 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3704 /* 3705 * If the oid does represent a session check to see 3706 * if it is a target oid. If so, return the target's 3707 * associated session. 3708 */ 3709 rtn = iscsi_sess_get(auth->a_oid, ihp, &isp); 3710 if (rtn != 0) { 3711 rtn = iscsi_sess_get_by_target(auth->a_oid, ihp, &isp); 3712 } 3713 rw_exit(&ihp->hba_sess_list_rwlock); 3714 3715 /* 3716 * If rtn is zero then we have found an 3717 * existing session. Use the session name to 3718 * do param lookup. If rtn is non-zero then 3719 * create a targetparam object and use its name 3720 * for param lookup. 3721 */ 3722 if (rtn == 0) { 3723 name = isp->sess_name; 3724 } else { 3725 name = 3726 iscsi_targetparam_get_name(auth->a_oid); 3727 rtn = 0; 3728 discovered = B_FALSE; 3729 } 3730 3731 if (name == NULL) { 3732 rw_exit( 3733 &ihp->hba_sess_list_rwlock); 3734 rtn = EFAULT; 3735 break; 3736 } 3737 3738 if (persistent_auth_clear((char *)name) == B_FALSE) { 3739 rtn = EIO; 3740 } 3741 3742 /* 3743 * ISCSI_TARGET_PARAM_CLEAR, ISCSI_CHAP_CLEAR and 3744 * ISCSI_AUTH_CLEAR ioctl are called sequentially to remove 3745 * target parameters. Here, the target that is not discovered 3746 * by initiator should be removed from the iscsi_targets list 3747 * residing in the memory. 3748 */ 3749 if (discovered == B_FALSE) { 3750 (void) iscsi_targetparam_remove_target(auth->a_oid); 3751 } 3752 3753 kmem_free(auth, sizeof (*auth)); 3754 break; 3755 3756 /* 3757 * ISCSI_DB_DUMP - 3758 */ 3759 case ISCSI_DB_DUMP: 3760 persistent_dump_data(); 3761 break; 3762 3763 case ISCSI_USCSI: 3764 3765 #ifdef _MULTI_DATAMODEL 3766 model = ddi_model_convert_from(mode & FMODELS); 3767 switch (model) { 3768 case DDI_MODEL_ILP32: 3769 3770 if (ddi_copyin((caddr_t)arg, &iu32_caller, 3771 sizeof (iscsi_uscsi32_t), mode)) { 3772 rtn = EFAULT; 3773 break; 3774 } 3775 3776 /* perform conversion from 32 -> 64 */ 3777 iu_caller.iu_vers = iu32_caller.iu_vers; 3778 iu_caller.iu_oid = iu32_caller.iu_oid; 3779 iu_caller.iu_tpgt = iu32_caller.iu_tpgt; 3780 iu_caller.iu_len = iu32_caller.iu_len; 3781 iu_caller.iu_lun = iu32_caller.iu_lun; 3782 uscsi_cmd32touscsi_cmd((&iu32_caller.iu_ucmd), 3783 (&iu_caller.iu_ucmd)); 3784 3785 break; 3786 case DDI_MODEL_NONE: 3787 if (ddi_copyin((caddr_t)arg, &iu_caller, 3788 sizeof (iscsi_uscsi_t), mode)) { 3789 rtn = EFAULT; 3790 break; 3791 } 3792 break; 3793 default: 3794 ASSERT(FALSE); 3795 rtn = EINVAL; 3796 break; 3797 } 3798 #endif /* _MULTI_DATAMODEL */ 3799 3800 /* If failures earlier break */ 3801 if (rtn != 0) { 3802 break; 3803 } 3804 3805 /* copy from caller to internel cmd */ 3806 bcopy(&iu_caller, &iu, sizeof (iu)); 3807 3808 if (iu.iu_vers != ISCSI_INTERFACE_VERSION) { 3809 rtn = EINVAL; 3810 break; 3811 } 3812 /* 3813 * Check to see if oid references a target-param oid. If so, 3814 * find the associated session oid before getting lu list. 3815 */ 3816 if (iscsi_targetparam_get_name(iu.iu_oid) != NULL) { 3817 for (isp = ihp->hba_sess_list; isp; isp = 3818 isp->sess_next) { 3819 if (isp->sess_target_oid == iu.iu_oid) { 3820 target_oid = isp->sess_oid; 3821 break; 3822 } 3823 } 3824 } else { 3825 target_oid = iu.iu_oid; 3826 } 3827 3828 /* make sure we have a matching session for this command */ 3829 rw_enter(&ihp->hba_sess_list_rwlock, RW_READER); 3830 rtn = iscsi_sess_get(target_oid, ihp, &isp); 3831 if (rtn != 0) { 3832 rtn = iscsi_sess_get_by_target(target_oid, ihp, 3833 &isp); 3834 if (rtn != 0) { 3835 rw_exit(&ihp->hba_sess_list_rwlock); 3836 rtn = EFAULT; 3837 break; 3838 } 3839 } 3840 /* 3841 * If a caller buffer is present allocate duplicate 3842 * kernel space and copyin caller memory. 3843 */ 3844 if (iu.iu_ucmd.uscsi_buflen > 0) { 3845 iu.iu_ucmd.uscsi_bufaddr = (caddr_t)kmem_alloc( 3846 iu.iu_ucmd.uscsi_buflen, KM_SLEEP); 3847 if (ddi_copyin(iu_caller.iu_ucmd.uscsi_bufaddr, 3848 iu.iu_ucmd.uscsi_bufaddr, 3849 iu.iu_ucmd.uscsi_buflen, mode)) { 3850 rw_exit(&ihp->hba_sess_list_rwlock); 3851 rtn = EFAULT; 3852 break; 3853 } 3854 } 3855 3856 /* 3857 * If a caller cdb is present allocate duplicate 3858 * kernel space and copyin caller memory. 3859 */ 3860 if (iu.iu_ucmd.uscsi_cdblen > 0) { 3861 iu.iu_ucmd.uscsi_cdb = (caddr_t)kmem_alloc( 3862 iu_caller.iu_ucmd.uscsi_cdblen, KM_SLEEP); 3863 if (ddi_copyin(iu_caller.iu_ucmd.uscsi_cdb, 3864 iu.iu_ucmd.uscsi_cdb, 3865 iu.iu_ucmd.uscsi_cdblen, mode)) { 3866 if (iu.iu_ucmd.uscsi_buflen > 0) { 3867 kmem_free(iu.iu_ucmd.uscsi_bufaddr, 3868 iu_caller.iu_ucmd.uscsi_buflen); 3869 } 3870 rw_exit(&ihp->hba_sess_list_rwlock); 3871 rtn = EFAULT; 3872 break; 3873 } 3874 } 3875 3876 /* 3877 * If a caller request sense is present allocate 3878 * duplicate kernel space. No need to copyin. 3879 */ 3880 if (iu.iu_ucmd.uscsi_rqlen > 0) { 3881 iu.iu_ucmd.uscsi_rqbuf = (caddr_t)kmem_alloc( 3882 iu.iu_ucmd.uscsi_rqlen, KM_SLEEP); 3883 } 3884 3885 /* issue passthru to io path handler */ 3886 rtn = iscsi_handle_passthru(isp, iu.iu_lun, &iu.iu_ucmd); 3887 if (rtn != 0) { 3888 rtn = EFAULT; 3889 } 3890 3891 /* 3892 * If the caller had a buf we need to do a copyout 3893 * and free the kernel memory 3894 */ 3895 if (iu.iu_ucmd.uscsi_buflen > 0) { 3896 if (ddi_copyout(iu.iu_ucmd.uscsi_bufaddr, 3897 iu_caller.iu_ucmd.uscsi_bufaddr, 3898 iu.iu_ucmd.uscsi_buflen, mode) != 0) { 3899 rtn = EFAULT; 3900 } 3901 kmem_free(iu.iu_ucmd.uscsi_bufaddr, 3902 iu.iu_ucmd.uscsi_buflen); 3903 } 3904 3905 /* We need to free kernel cdb, no need to copyout */ 3906 if (iu.iu_ucmd.uscsi_cdblen > 0) { 3907 kmem_free(iu.iu_ucmd.uscsi_cdb, 3908 iu.iu_ucmd.uscsi_cdblen); 3909 } 3910 3911 /* 3912 * If the caller had a request sense we need to 3913 * do a copyout and free the kernel memory 3914 */ 3915 if (iu.iu_ucmd.uscsi_rqlen > 0) { 3916 if (ddi_copyout(iu.iu_ucmd.uscsi_rqbuf, 3917 iu_caller.iu_ucmd.uscsi_rqbuf, 3918 iu.iu_ucmd.uscsi_rqlen, mode) != 0) { 3919 rtn = EFAULT; 3920 } 3921 kmem_free(iu.iu_ucmd.uscsi_rqbuf, 3922 iu.iu_ucmd.uscsi_rqlen); 3923 } 3924 3925 #ifdef _MULTI_DATAMODEL 3926 if (iu.iu_ucmd.uscsi_status != 0) { 3927 switch (model = ddi_model_convert_from( 3928 mode & FMODELS)) { 3929 case DDI_MODEL_ILP32: 3930 iu32_caller.iu_ucmd.uscsi_status = 3931 iu.iu_ucmd.uscsi_status; 3932 if (ddi_copyout((void *)&iu32_caller, 3933 (caddr_t)arg, sizeof (iscsi_uscsi32_t), 3934 mode) != 0) { 3935 rtn = EFAULT; 3936 } 3937 break; 3938 case DDI_MODEL_NONE: 3939 iu_caller.iu_ucmd.uscsi_status = 3940 iu.iu_ucmd.uscsi_status; 3941 if (ddi_copyout((void *)&iu_caller, 3942 (caddr_t)arg, sizeof (iscsi_uscsi_t), 3943 mode) != 0) { 3944 rtn = EFAULT; 3945 } 3946 break; 3947 default: 3948 ASSERT(FALSE); 3949 } 3950 } 3951 #endif /* _MULTI_DATAMODEL */ 3952 rw_exit(&ihp->hba_sess_list_rwlock); 3953 break; 3954 3955 case ISCSI_SMF_ONLINE: 3956 if (ddi_copyin((caddr_t)arg, &did, sizeof (int), mode) != 0) { 3957 rtn = EFAULT; 3958 break; 3959 } 3960 /* just a theoretical case */ 3961 if (ihp->hba_persistent_loaded == B_FALSE) { 3962 rtn = EFAULT; 3963 break; 3964 } 3965 3966 /* doesn't need to overwrite the status anymore */ 3967 mutex_enter(&ihp->hba_service_lock); 3968 if (ihp->hba_service_status_overwrite == B_TRUE) { 3969 ihp->hba_service_status = ISCSI_SERVICE_DISABLED; 3970 ihp->hba_service_status_overwrite = B_FALSE; 3971 } 3972 mutex_exit(&ihp->hba_service_lock); 3973 3974 if (iscsi_enter_service_zone(ihp, ISCSI_SERVICE_ENABLED) == 3975 B_FALSE) { 3976 break; 3977 } 3978 3979 rval = iscsi_door_bind(did); 3980 if (rval == B_TRUE) { 3981 rval = iscsid_start(ihp); 3982 if (rval == B_FALSE) { 3983 iscsi_door_unbind(); 3984 } 3985 } 3986 3987 if (rval == B_TRUE) { 3988 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_ENABLED); 3989 } else { 3990 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_DISABLED); 3991 rtn = EFAULT; 3992 } 3993 3994 break; 3995 3996 case ISCSI_SMF_OFFLINE: 3997 if (iscsi_enter_service_zone(ihp, ISCSI_SERVICE_DISABLED) 3998 == B_FALSE) { 3999 break; 4000 } 4001 4002 rval = iscsid_stop(ihp); 4003 4004 if (rval == B_TRUE) { 4005 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_DISABLED); 4006 iscsi_door_unbind(); 4007 } else { 4008 iscsi_exit_service_zone(ihp, ISCSI_SERVICE_ENABLED); 4009 rtn = EFAULT; 4010 } 4011 break; 4012 4013 case ISCSI_SMF_GET: 4014 mutex_enter(&ihp->hba_service_lock); 4015 while (ihp->hba_service_status == 4016 ISCSI_SERVICE_TRANSITION) { 4017 cv_wait(&ihp->hba_service_cv, 4018 &ihp->hba_service_lock); 4019 } 4020 if (ddi_copyout((void *)&ihp->hba_service_status, 4021 (caddr_t)arg, sizeof (boolean_t), mode) != 0) { 4022 rtn = EFAULT; 4023 } 4024 mutex_exit(&ihp->hba_service_lock); 4025 break; 4026 4027 case ISCSI_DISCOVERY_EVENTS: 4028 /* 4029 * If discovery has not been completed and not in progress, 4030 * poke the discovery methods 4031 */ 4032 mutex_enter(&ihp->hba_discovery_events_mutex); 4033 method = ihp->hba_discovery_events; 4034 if ((method != ISCSI_ALL_DISCOVERY_METHODS) && 4035 (ihp->hba_discovery_in_progress == B_FALSE)) { 4036 ihp->hba_discovery_in_progress = B_TRUE; 4037 mutex_exit(&ihp->hba_discovery_events_mutex); 4038 iscsid_poke_discovery(ihp, iSCSIDiscoveryMethodUnknown); 4039 mutex_enter(&ihp->hba_discovery_events_mutex); 4040 ihp->hba_discovery_in_progress = B_FALSE; 4041 method = ihp->hba_discovery_events; 4042 } 4043 mutex_exit(&ihp->hba_discovery_events_mutex); 4044 4045 if (ddi_copyout((void *)&method, (caddr_t)arg, 4046 sizeof (method), mode) != 0) 4047 rtn = EFAULT; 4048 break; 4049 4050 /* 4051 * ISCSI_SENDTGTS_GET -- 4052 */ 4053 case ISCSI_SENDTGTS_GET: 4054 stl_hdr = iscsi_ioctl_copyin((caddr_t)arg, mode, 4055 sizeof (*stl_hdr)); 4056 if (stl_hdr == NULL) { 4057 rtn = EFAULT; 4058 break; 4059 } 4060 4061 if (stl_hdr->stl_entry.e_vers != ISCSI_INTERFACE_VERSION) { 4062 rtn = EINVAL; 4063 kmem_free(stl_hdr, sizeof (*stl_hdr)); 4064 break; 4065 } 4066 4067 /* calculate how much memory user allocated for SendTgts */ 4068 stl_sz = sizeof (*stl_hdr); 4069 if (stl_hdr->stl_in_cnt > 0) { 4070 stl_sz += ((stl_hdr->stl_in_cnt - 1) * 4071 sizeof (iscsi_sendtgts_entry_t)); 4072 } 4073 4074 /* allocate local SendTgts list of the same size */ 4075 istl = kmem_zalloc(stl_sz, KM_SLEEP); 4076 bcopy(stl_hdr, istl, sizeof (*stl_hdr)); 4077 kmem_free(stl_hdr, sizeof (*stl_hdr)); 4078 4079 /* lock interface so only one SendTargets operation occurs */ 4080 sema_p(&ihp->hba_sendtgts_semaphore); 4081 4082 rtn = iscsi_ioctl_sendtgts_get(ihp, istl); 4083 4084 if (rtn == 0) { 4085 rtn = iscsi_ioctl_copyout(istl, stl_sz, 4086 (caddr_t)arg, mode); 4087 } 4088 4089 /* release lock to allow another SendTargets discovery */ 4090 sema_v(&ihp->hba_sendtgts_semaphore); 4091 4092 break; 4093 4094 /* 4095 * ISCSI_ISNS_SERVER_GET -- 4096 */ 4097 case ISCSI_ISNS_SERVER_GET: 4098 server_pg_list_hdr = iscsi_ioctl_copyin((caddr_t)arg, mode, 4099 sizeof (*server_pg_list_hdr)); 4100 if (server_pg_list_hdr == NULL) { 4101 rtn = EFAULT; 4102 break; 4103 } 4104 4105 /* If iSNS discovery mode is not set, return with zero entry */ 4106 method = persistent_disc_meth_get(); 4107 if ((method & iSCSIDiscoveryMethodISNS) == 0) { 4108 kmem_free(server_pg_list_hdr, 4109 sizeof (*server_pg_list_hdr)); 4110 server_pg_list_hdr = NULL; 4111 rtn = EACCES; 4112 break; 4113 } 4114 4115 initiator_node_name = kmem_zalloc(ISCSI_MAX_NAME_LEN, KM_SLEEP); 4116 if (persistent_initiator_name_get(initiator_node_name, 4117 ISCSI_MAX_NAME_LEN) != B_TRUE) { 4118 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4119 initiator_node_name = NULL; 4120 kmem_free(server_pg_list_hdr, 4121 sizeof (*server_pg_list_hdr)); 4122 server_pg_list_hdr = NULL; 4123 rtn = EIO; 4124 break; 4125 } 4126 if (strlen(initiator_node_name) == 0) { 4127 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4128 initiator_node_name = NULL; 4129 kmem_free(server_pg_list_hdr, 4130 sizeof (*server_pg_list_hdr)); 4131 server_pg_list_hdr = NULL; 4132 rtn = EIO; 4133 break; 4134 } 4135 4136 initiator_node_alias = kmem_zalloc( 4137 ISCSI_MAX_NAME_LEN, KM_SLEEP); 4138 if (persistent_alias_name_get(initiator_node_alias, 4139 ISCSI_MAX_NAME_LEN) != B_TRUE) { 4140 initiator_node_alias[0] = '\0'; 4141 } 4142 rtn = isns_query_one_server(&(server_pg_list_hdr->addr), 4143 ihp->hba_isid, 4144 (uint8_t *)initiator_node_name, 4145 (uint8_t *)initiator_node_alias, 4146 ISNS_INITIATOR_NODE_TYPE, 4147 &pg_list); 4148 if (rtn != isns_ok || pg_list == NULL) { 4149 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4150 initiator_node_name = NULL; 4151 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 4152 initiator_node_alias = NULL; 4153 kmem_free(server_pg_list_hdr, 4154 sizeof (*server_pg_list_hdr)); 4155 server_pg_list_hdr = NULL; 4156 rtn = EIO; 4157 break; 4158 } 4159 4160 /* 4161 * pg_list_sz is the size of the pg_list returned from the 4162 * isns_query_all 4163 * 4164 * pg_sz_copy_out is the size of the pg_list we are going to 4165 * return back to the caller 4166 * 4167 * server_pg_list_sz is total amount of data we are returning 4168 * back to the caller 4169 */ 4170 pg_list->pg_in_cnt = 4171 server_pg_list_hdr->addr_port_list.pg_in_cnt; 4172 pg_list_sz = sizeof (isns_portal_group_list_t); 4173 if (pg_list->pg_out_cnt > 0) { 4174 pg_list_sz += (pg_list->pg_out_cnt - 1) * 4175 sizeof (isns_portal_group_t); 4176 } 4177 /* 4178 * check if caller passed in a buffer with enough space 4179 * if there isn't enough space, fill the caller's buffer with 4180 * as much information as possible. 4181 * 4182 * if pg_out_cnt > pg_in_cnt, pg_out_cnt will be returned with 4183 * the total number of targets found 4184 * 4185 * if pg_out_cnt < pg_in_cnt, pg_out_cnt will be the number 4186 * of targets returned 4187 */ 4188 if (pg_list->pg_in_cnt < pg_list->pg_out_cnt) { 4189 pg_sz_copy_out = sizeof (isns_portal_group_list_t); 4190 if (pg_list->pg_in_cnt > 0) { 4191 pg_sz_copy_out += (pg_list->pg_in_cnt - 1) * 4192 sizeof (isns_portal_group_t); 4193 } 4194 server_pg_list_sz = 4195 sizeof (isns_server_portal_group_list_t); 4196 if (pg_list->pg_in_cnt > 0) { 4197 server_pg_list_sz += (pg_list->pg_in_cnt - 1) * 4198 sizeof (isns_portal_group_t); 4199 } 4200 } else { 4201 pg_sz_copy_out = pg_list_sz; 4202 server_pg_list_sz = 4203 sizeof (isns_server_portal_group_list_t); 4204 if (pg_list->pg_out_cnt > 0) { 4205 server_pg_list_sz += (pg_list->pg_out_cnt - 1) * 4206 sizeof (isns_portal_group_t); 4207 } 4208 } 4209 4210 server_pg_list = (isns_server_portal_group_list_t *)kmem_zalloc( 4211 server_pg_list_sz, KM_SLEEP); 4212 4213 bcopy(&(server_pg_list_hdr->addr), &(server_pg_list->addr), 4214 sizeof (server_pg_list->addr)); 4215 bcopy(pg_list, &server_pg_list->addr_port_list, pg_sz_copy_out); 4216 4217 if (ddi_copyout(server_pg_list, (caddr_t)arg, server_pg_list_sz, 4218 mode) != 0) { 4219 rtn = EFAULT; 4220 } 4221 DTRACE_PROBE1(iscsi_ioctl_iscsi_isns_server_get_pg_sz, 4222 int, pg_list_sz); 4223 kmem_free(initiator_node_name, ISCSI_MAX_NAME_LEN); 4224 initiator_node_name = NULL; 4225 kmem_free(initiator_node_alias, ISCSI_MAX_NAME_LEN); 4226 initiator_node_alias = NULL; 4227 kmem_free(pg_list, pg_list_sz); 4228 pg_list = NULL; 4229 kmem_free(server_pg_list, server_pg_list_sz); 4230 server_pg_list = NULL; 4231 kmem_free(server_pg_list_hdr, sizeof (*server_pg_list_hdr)); 4232 server_pg_list_hdr = NULL; 4233 break; 4234 4235 /* 4236 * ISCSI_GET_CONFIG_SESSIONS -- 4237 */ 4238 case ISCSI_GET_CONFIG_SESSIONS: 4239 /* FALLTHRU */ 4240 4241 case ISCSI_SET_CONFIG_SESSIONS: 4242 size = sizeof (*ics); 4243 ics = iscsi_ioctl_copyin((caddr_t)arg, mode, size); 4244 if (ics == NULL) { 4245 rtn = EFAULT; 4246 break; 4247 } 4248 4249 /* verify version infomration */ 4250 if (ics->ics_ver != ISCSI_INTERFACE_VERSION) { 4251 rtn = EINVAL; 4252 kmem_free(ics, size); 4253 ics = NULL; 4254 break; 4255 } 4256 4257 /* Check to see if we need to copy in more memory */ 4258 if (ics->ics_in > 1) { 4259 /* record correct size */ 4260 size = ISCSI_SESSION_CONFIG_SIZE(ics->ics_in); 4261 /* free old buffer */ 4262 kmem_free(ics, sizeof (*ics)); 4263 4264 /* copy in complete buffer size */ 4265 ics = iscsi_ioctl_copyin((caddr_t)arg, mode, size); 4266 if (ics == NULL) { 4267 rtn = EFAULT; 4268 break; 4269 } 4270 } 4271 4272 /* switch action based on get or set */ 4273 if (cmd == ISCSI_GET_CONFIG_SESSIONS) { 4274 /* get */ 4275 rtn = iscsi_ioctl_get_config_sess(ihp, ics); 4276 if (rtn == 0) { 4277 /* copyout data for gets */ 4278 rtn = iscsi_ioctl_copyout(ics, size, 4279 (caddr_t)arg, mode); 4280 } else { 4281 kmem_free(ics, size); 4282 ics = NULL; 4283 } 4284 } else { 4285 /* set */ 4286 rtn = iscsi_ioctl_set_config_sess(ihp, ics); 4287 if (iscsiboot_prop) { 4288 if (iscsi_cmp_boot_sess_oid(ihp, 4289 ics->ics_oid)) { 4290 /* 4291 * found active session for this object 4292 * or this is initiator object 4293 * with mpxio enabled 4294 */ 4295 if (!iscsi_reconfig_boot_sess(ihp)) { 4296 kmem_free(ics, size); 4297 ics = NULL; 4298 rtn = EINVAL; 4299 break; 4300 } 4301 } 4302 } 4303 kmem_free(ics, size); 4304 ics = NULL; 4305 } 4306 break; 4307 4308 case ISCSI_IS_ACTIVE: 4309 /* 4310 * dhcpagent calls here to check if there are 4311 * active iSCSI sessions 4312 */ 4313 instance = 0; 4314 if (iscsiboot_prop) { 4315 instance = 1; 4316 } 4317 if (!instance) { 4318 rw_enter(&ihp->hba_sess_list_rwlock, 4319 RW_READER); 4320 for (isp = ihp->hba_sess_list; isp; 4321 isp = isp->sess_next) { 4322 if ((isp->sess_state == 4323 ISCSI_SESS_STATE_LOGGED_IN) && 4324 (isp->sess_lun_list != 4325 NULL)) { 4326 instance = 1; 4327 break; 4328 } 4329 } 4330 rw_exit(&ihp->hba_sess_list_rwlock); 4331 } 4332 size = sizeof (instance); 4333 if (ddi_copyout(&instance, (caddr_t)arg, size, 4334 mode) != 0) { 4335 rtn = EFAULT; 4336 } 4337 break; 4338 4339 case ISCSI_BOOTPROP_GET: 4340 size = sizeof (*bootProp); 4341 bootProp = iscsi_ioctl_copyin((caddr_t)arg, mode, size); 4342 if (bootProp == NULL) { 4343 rtn = EFAULT; 4344 break; 4345 } 4346 bootProp->hba_mpxio_enabled = 4347 iscsi_chk_bootlun_mpxio(ihp); 4348 if (iscsiboot_prop == NULL) { 4349 bootProp->iscsiboot = 0; 4350 rtn = iscsi_ioctl_copyout(bootProp, size, 4351 (caddr_t)arg, mode); 4352 break; 4353 } else { 4354 bootProp->iscsiboot = 1; 4355 } 4356 4357 if (iscsiboot_prop->boot_init.ini_name != NULL) { 4358 (void) strncpy((char *)bootProp->ini_name.n_name, 4359 (char *)iscsiboot_prop->boot_init.ini_name, 4360 ISCSI_MAX_NAME_LEN); 4361 } 4362 if (iscsiboot_prop->boot_init.ini_chap_name != NULL) { 4363 bootProp->auth.a_auth_method = authMethodCHAP; 4364 (void) strncpy((char *)bootProp->ini_chap.c_user, 4365 (char *)iscsiboot_prop->boot_init.ini_chap_name, 4366 ISCSI_MAX_NAME_LEN); 4367 (void) strncpy((char *)bootProp->ini_chap.c_secret, 4368 (char *)iscsiboot_prop->boot_init.ini_chap_sec, 4369 ISCSI_CHAP_SECRET_LEN); 4370 if (iscsiboot_prop->boot_tgt.tgt_chap_name != 4371 NULL) { 4372 bootProp->auth.a_bi_auth = B_TRUE; 4373 } else { 4374 bootProp->auth.a_bi_auth = B_FALSE; 4375 } 4376 } 4377 if (iscsiboot_prop->boot_tgt.tgt_name != NULL) { 4378 (void) strncpy((char *)bootProp->tgt_name.n_name, 4379 (char *)iscsiboot_prop->boot_tgt.tgt_name, 4380 ISCSI_MAX_NAME_LEN); 4381 } 4382 if (iscsiboot_prop->boot_tgt.tgt_chap_name != NULL) { 4383 (void) strncpy((char *)bootProp->tgt_chap.c_user, 4384 (char *)iscsiboot_prop->boot_tgt.tgt_chap_name, 4385 ISCSI_MAX_NAME_LEN); 4386 (void) strncpy((char *)bootProp->tgt_chap.c_secret, 4387 (char *)iscsiboot_prop->boot_tgt.tgt_chap_sec, 4388 ISCSI_CHAP_SECRET_LEN); 4389 } 4390 4391 rtn = iscsi_ioctl_copyout(bootProp, size, (caddr_t)arg, mode); 4392 break; 4393 4394 case ISCSI_TUNABLE_PARAM_SET: 4395 tpss = (iscsi_tunable_object_t *)kmem_alloc(sizeof (*tpss), 4396 KM_SLEEP); 4397 if (ddi_copyin((caddr_t)arg, tpss, sizeof (*tpss), mode)) { 4398 rtn = EFAULT; 4399 kmem_free(tpss, sizeof (*tpss)); 4400 break; 4401 } 4402 rtn = iscsi_ioctl_set_tunable_param(ihp, tpss); 4403 kmem_free(tpss, sizeof (*tpss)); 4404 break; 4405 4406 case ISCSI_TUNABLE_PARAM_GET: 4407 tpsg = (iscsi_tunable_object_t *)kmem_alloc(sizeof (*tpsg), 4408 KM_SLEEP); 4409 if (ddi_copyin((caddr_t)arg, tpsg, sizeof (*tpsg), mode)) { 4410 rtn = EFAULT; 4411 kmem_free(tpsg, sizeof (*tpsg)); 4412 break; 4413 } 4414 if (tpsg->t_oid == ihp->hba_oid) { 4415 /* initiator */ 4416 name = ihp->hba_name; 4417 if (iscsi_get_persisted_tunable_param((uchar_t *)name, 4418 tpsg) == 1) { 4419 /* 4420 * no persisted tunable parameters found 4421 * for iscsi initiator, use default tunable 4422 * params for initiator node. 4423 */ 4424 iscsi_get_tunable_default(tpsg); 4425 } 4426 } else { 4427 /* check whether it is a target oid */ 4428 name = iscsi_targetparam_get_name(tpsg->t_oid); 4429 if (name == NULL) { 4430 /* invalid node name */ 4431 rtn = EINVAL; 4432 kmem_free(tpsg, sizeof (*tpsg)); 4433 break; 4434 } 4435 if (iscsi_get_persisted_tunable_param((uchar_t *)name, 4436 tpsg) == 1) { 4437 /* 4438 * no persisted tunable parameters found for 4439 * iscsi target, use initiator's configure. 4440 */ 4441 if (iscsi_get_persisted_tunable_param( 4442 (uchar_t *)ihp->hba_name, tpsg) == -1) { 4443 /* 4444 * No initiator tunable parameters set 4445 * use default value for target 4446 */ 4447 iscsi_get_tunable_default(tpsg); 4448 } 4449 } 4450 } 4451 4452 if (ddi_copyout(tpsg, (caddr_t)arg, 4453 sizeof (iscsi_tunable_object_t), mode) != 0) { 4454 rtn = EFAULT; 4455 } 4456 kmem_free(tpsg, sizeof (*tpsg)); 4457 break; 4458 4459 default: 4460 rtn = ENOTTY; 4461 cmn_err(CE_NOTE, "unrecognized ioctl 0x%x", cmd); 4462 } /* end of ioctl type switch/cases */ 4463 4464 if ((cmd != ISCSI_SMF_ONLINE) && (cmd != ISCSI_SMF_OFFLINE) && 4465 (cmd != ISCSI_SMF_GET)) { 4466 /* other cmds need to release the service */ 4467 iscsi_client_release_service(ihp); 4468 } 4469 4470 return (rtn); 4471 } 4472 4473 /* 4474 * +--------------------------------------------------------------------+ 4475 * | End of cb_ops routines | 4476 * +--------------------------------------------------------------------+ 4477 */ 4478 4479 4480 /* 4481 * +--------------------------------------------------------------------+ 4482 * | Common scsi_tran support routines | 4483 * +--------------------------------------------------------------------+ 4484 */ 4485 4486 /* 4487 * iscsi_i_commoncap -- SCSA host adapter get/set capability routines. 4488 * 4489 * Need to determine if any of these can be determined through the iSCSI 4490 * protocol. For now just return error on most. 4491 */ 4492 /* ARGSUSED */ 4493 static int 4494 iscsi_i_commoncap(struct scsi_address *ap, char *cap, int val, 4495 int tgtonly, int doset) 4496 { 4497 int rtn; 4498 int cidx; 4499 iscsi_lun_t *ilp; 4500 4501 ASSERT((ap)->a_hba_tran->tran_hba_private != NULL); 4502 ilp = (iscsi_lun_t *)((ap)->a_hba_tran->tran_tgt_private); 4503 ASSERT(ilp != NULL); 4504 4505 if (cap == (char *)0) { 4506 return (FALSE); 4507 } 4508 4509 cidx = scsi_hba_lookup_capstr(cap); 4510 if (cidx == -1) { 4511 return (cidx); 4512 } 4513 4514 /* 4515 * Process setcap request. 4516 */ 4517 if (doset) { 4518 /* 4519 * At present, we can only set binary (0/1) values 4520 */ 4521 switch (cidx) { 4522 case SCSI_CAP_LUN_RESET: 4523 if (val) { 4524 ilp->lun_cap |= ISCSI_LUN_CAP_RESET; 4525 } else { 4526 ilp->lun_cap &= ~ISCSI_LUN_CAP_RESET; 4527 } 4528 rtn = TRUE; 4529 break; 4530 default: 4531 /* 4532 * None of these are settable via 4533 * the capability interface. 4534 */ 4535 rtn = FALSE; 4536 break; 4537 } 4538 4539 /* 4540 * Process getcap request. 4541 */ 4542 } else { 4543 switch (cidx) { 4544 case SCSI_CAP_DMA_MAX: 4545 /* no DMA, Psuedo value */ 4546 rtn = INT32_MAX; 4547 break; 4548 case SCSI_CAP_INITIATOR_ID: 4549 rtn = 7; 4550 break; 4551 case SCSI_CAP_ARQ: 4552 case SCSI_CAP_RESET_NOTIFICATION: 4553 case SCSI_CAP_TAGGED_QING: 4554 rtn = TRUE; 4555 break; 4556 case SCSI_CAP_SCSI_VERSION: 4557 rtn = SCSI_VERSION_3; 4558 break; 4559 case SCSI_CAP_INTERCONNECT_TYPE: 4560 rtn = INTERCONNECT_FABRIC; 4561 break; 4562 case SCSI_CAP_LUN_RESET: 4563 rtn = ((ilp->lun_cap & ISCSI_LUN_CAP_RESET) != 0) ? 4564 TRUE : FALSE; 4565 break; 4566 case SCSI_CAP_CDB_LEN: 4567 /* 4568 * iSCSI RFC 3720 defines a default 16 byte 4569 * CDB as part of the Basic Header Segment 4570 * (BHS) (10.2.1) and allows for an Additional 4571 * Header Segment (AHS) Length of 255 * 4 4572 * (10.2.1.5). The AHS length can be used 4573 * for different purposes two of which are 4574 * Extended CDB ADS (10.2.2.3) and Bidirectional 4575 * Expected Read-Data Length AHS (10.2.2.4). 4576 * The largest header of these consumes is 4577 * 32 bytes. So the total Max CDB Length is 4578 * 16 + ((255 * 4 ) - 32) = 1004. 4579 */ 4580 rtn = 1004; 4581 break; 4582 default: 4583 rtn = UNDEFINED; 4584 break; 4585 } 4586 } 4587 return (rtn); 4588 } 4589 4590 /* 4591 * iscsi_virt_lun_init - attempts to complete a mdi/scsi_vhci binding 4592 * 4593 * This routine is used to associate the tran_tgt_private to our ilp 4594 * structure. This function is indirectly called from our 4595 * iscsi_lun_create_xxx routines. These routines must prevent 4596 * the session and lun lists from changing during this call. 4597 */ 4598 /* ARGSUSED */ 4599 static int 4600 iscsi_virt_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 4601 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 4602 { 4603 iscsi_lun_t *ilp = NULL; 4604 iscsi_lun_t *ilp_check = NULL; 4605 iscsi_sess_t *isp = NULL; 4606 char *lun_guid = NULL; 4607 mdi_pathinfo_t *pip = NULL; 4608 iscsi_hba_t *ihp = (iscsi_hba_t *)hba_tran->tran_hba_private; 4609 char target_port_name[MAX_NAME_PROP_SIZE]; 4610 4611 /* 4612 * Here's a nice little piece of undocumented stuff. 4613 */ 4614 if ((pip = (mdi_pathinfo_t *)sd->sd_private) == NULL) { 4615 /* 4616 * Very bad news if this occurs. Somehow SCSI_vhci has 4617 * lost the pathinfo node for this target. 4618 */ 4619 return (DDI_NOT_WELL_FORMED); 4620 } 4621 4622 ilp = (iscsi_lun_t *)mdi_pi_get_phci_private(pip); 4623 4624 /* 4625 * +----------------------------------------------------+ 4626 * | Looking to find the target device via the property | 4627 * | is not required since the driver can easily get | 4628 * | this information from the mdi_phci_get_private() | 4629 * | call above. This is just a consistency check | 4630 * | which can be removed. | 4631 */ 4632 if (mdi_prop_lookup_string(pip, MDI_GUID, &lun_guid) != 4633 DDI_PROP_SUCCESS) { 4634 return (DDI_NOT_WELL_FORMED); 4635 } 4636 4637 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 4638 4639 /* If this isn't the matching session continue */ 4640 if (ilp->lun_sess != isp) { 4641 continue; 4642 } 4643 4644 /* 4645 * We are already holding the lun list rwlock 4646 * for this thread on the callers side of mdi_pi_online 4647 * or ndi_devi_online. Which lead to this functions 4648 * call. 4649 */ 4650 for (ilp_check = isp->sess_lun_list; ilp_check; 4651 ilp_check = ilp_check->lun_next) { 4652 4653 /* 4654 * If this is the matching LUN and contains 4655 * the same LUN GUID then break we found our 4656 * match. 4657 */ 4658 if ((ilp == ilp_check) && 4659 (strcmp(lun_guid, ilp_check->lun_guid) == 0)) { 4660 break; 4661 } 4662 } 4663 if (ilp_check != NULL) { 4664 break; 4665 } 4666 } 4667 4668 /* 4669 * Free resource that's no longer required. 4670 */ 4671 if (lun_guid != NULL) 4672 (void) mdi_prop_free(lun_guid); 4673 4674 if (ilp_check == NULL) { 4675 /* 4676 * Failed to find iSCSI LUN in HBA chain based 4677 * on the GUID that was stored as a property on 4678 * the pathinfo node. 4679 */ 4680 return (DDI_NOT_WELL_FORMED); 4681 } 4682 4683 if (ilp != ilp_check) { 4684 /* 4685 * The iSCSI target that we found on the HBA link is 4686 * different than the iSCSI target that was stored as 4687 * private data on the pathinfo node. 4688 */ 4689 return (DDI_NOT_WELL_FORMED); 4690 } 4691 /* 4692 * | End of consistency check | 4693 * +----------------------------------------------------+ 4694 */ 4695 4696 hba_tran->tran_tgt_private = ilp; 4697 4698 target_port_name[0] = '\0'; 4699 if (ilp->lun_sess->sess_tpgt_conf == ISCSI_DEFAULT_TPGT) { 4700 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4701 "%02x%02x%02x%02x%02x%02x,%s", 4702 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4703 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4704 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4705 ilp->lun_sess->sess_name); 4706 } else { 4707 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4708 "%02x%02x%02x%02x%02x%02x,%s,%d", 4709 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4710 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4711 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4712 ilp->lun_sess->sess_name, ilp->lun_sess->sess_tpgt_conf); 4713 } 4714 4715 if (mdi_prop_update_string(pip, 4716 SCSI_ADDR_PROP_TARGET_PORT, target_port_name) != DDI_PROP_SUCCESS) { 4717 cmn_err(CE_WARN, "iscsi_virt_lun_init: Creating '" 4718 SCSI_ADDR_PROP_TARGET_PORT "' property on Path(%p) " 4719 "for Target(%s), Lun(%d) Failed", 4720 (void *)pip, ilp->lun_sess->sess_name, ilp->lun_num); 4721 } 4722 4723 return (DDI_SUCCESS); 4724 } 4725 4726 /* 4727 * iscsi_phys_lun_init - attempts to complete a ndi binding 4728 * 4729 * This routine is used to associate the tran_tgt_private to our 4730 * ilp structure. This function is indirectly called from our 4731 * iscsi_lun_create_xxx routines. These routines must prevent 4732 * the session and lun lists from changing during this call. 4733 */ 4734 static int 4735 iscsi_phys_lun_init(dev_info_t *hba_dip, dev_info_t *lun_dip, 4736 scsi_hba_tran_t *hba_tran, struct scsi_device *sd) 4737 { 4738 int rtn = DDI_SUCCESS; 4739 iscsi_hba_t *ihp = NULL; 4740 iscsi_sess_t *isp = NULL; 4741 iscsi_lun_t *ilp = NULL; 4742 char target_port_name[MAX_NAME_PROP_SIZE]; 4743 int *words = NULL; 4744 uint_t nwords = 0; 4745 4746 ASSERT(hba_dip); 4747 ASSERT(lun_dip); 4748 ASSERT(hba_tran); 4749 ASSERT(sd); 4750 ihp = (iscsi_hba_t *)hba_tran->tran_hba_private; 4751 ASSERT(ihp); 4752 4753 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, lun_dip, 4754 DDI_PROP_DONTPASS, LUN_PROP, &words, &nwords) != DDI_PROP_SUCCESS) { 4755 cmn_err(CE_WARN, "iscsi_phys_lun_init: Returning DDI_FAILURE:" 4756 "lun for %s (instance %d)", ddi_get_name(lun_dip), 4757 ddi_get_instance(lun_dip)); 4758 return (DDI_FAILURE); 4759 } 4760 4761 if (nwords == 0) { 4762 ddi_prop_free(words); 4763 return (DDI_FAILURE); 4764 } 4765 4766 ASSERT(words != NULL); 4767 4768 /* See if we already created this session */ 4769 4770 /* Walk the HBA's session list */ 4771 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 4772 /* compare target name as the unique identifier */ 4773 if (sd->sd_address.a_target == isp->sess_oid) { 4774 /* found match */ 4775 break; 4776 } 4777 } 4778 4779 /* If we found matching session continue searching for tgt */ 4780 if (isp != NULL) { 4781 /* 4782 * Search for the matching iscsi lun structure. We don't 4783 * need to hold the READER for the lun list at this point. 4784 * because the tran_get_name is being called from the online 4785 * function which is already holding a reader on the lun 4786 * list. 4787 */ 4788 for (ilp = isp->sess_lun_list; ilp; ilp = ilp->lun_next) { 4789 if (*words == ilp->lun_num) { 4790 /* found match */ 4791 break; 4792 } 4793 } 4794 4795 if (ilp != NULL) { 4796 /* 4797 * tgt found path it to the tran_lun_private 4798 * this is used later for fast access on 4799 * init_pkt and start 4800 */ 4801 hba_tran->tran_tgt_private = ilp; 4802 } else { 4803 /* tgt not found */ 4804 ddi_prop_free(words); 4805 return (DDI_FAILURE); 4806 } 4807 } else { 4808 /* sess not found */ 4809 ddi_prop_free(words); 4810 return (DDI_FAILURE); 4811 } 4812 ddi_prop_free(words); 4813 4814 target_port_name[0] = '\0'; 4815 if (ilp->lun_sess->sess_tpgt_conf == ISCSI_DEFAULT_TPGT) { 4816 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4817 "%02x%02x%02x%02x%02x%02x,%s", 4818 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4819 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4820 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4821 ilp->lun_sess->sess_name); 4822 } else { 4823 (void) snprintf(target_port_name, MAX_NAME_PROP_SIZE, 4824 "%02x%02x%02x%02x%02x%02x,%s,%d", 4825 ilp->lun_sess->sess_isid[0], ilp->lun_sess->sess_isid[1], 4826 ilp->lun_sess->sess_isid[2], ilp->lun_sess->sess_isid[3], 4827 ilp->lun_sess->sess_isid[4], ilp->lun_sess->sess_isid[5], 4828 ilp->lun_sess->sess_name, ilp->lun_sess->sess_tpgt_conf); 4829 } 4830 4831 if (ddi_prop_update_string(DDI_DEV_T_NONE, lun_dip, 4832 SCSI_ADDR_PROP_TARGET_PORT, target_port_name) != DDI_PROP_SUCCESS) { 4833 cmn_err(CE_WARN, "iscsi_phys_lun_init: Creating '" 4834 SCSI_ADDR_PROP_TARGET_PORT "' property on Target(%s), " 4835 "Lun(%d) Failed", ilp->lun_sess->sess_name, ilp->lun_num); 4836 } 4837 4838 return (rtn); 4839 } 4840 4841 /* 4842 * +--------------------------------------------------------------------+ 4843 * | End of scsi_tran support routines | 4844 * +--------------------------------------------------------------------+ 4845 */ 4846 4847 /* 4848 * +--------------------------------------------------------------------+ 4849 * | Begin of struct utility routines | 4850 * +--------------------------------------------------------------------+ 4851 */ 4852 4853 4854 /* 4855 * iscsi_set_default_login_params - This function sets the 4856 * driver default login params. This is using during the 4857 * creation of our iSCSI HBA structure initialization by 4858 * could be used at other times to reset back to the defaults. 4859 */ 4860 void 4861 iscsi_set_default_login_params(iscsi_login_params_t *params) 4862 { 4863 params->immediate_data = ISCSI_DEFAULT_IMMEDIATE_DATA; 4864 params->initial_r2t = ISCSI_DEFAULT_INITIALR2T; 4865 params->first_burst_length = ISCSI_DEFAULT_FIRST_BURST_LENGTH; 4866 params->max_burst_length = ISCSI_DEFAULT_MAX_BURST_LENGTH; 4867 params->data_pdu_in_order = ISCSI_DEFAULT_DATA_PDU_IN_ORDER; 4868 params->data_sequence_in_order = ISCSI_DEFAULT_DATA_SEQUENCE_IN_ORDER; 4869 params->default_time_to_wait = ISCSI_DEFAULT_TIME_TO_WAIT; 4870 params->default_time_to_retain = ISCSI_DEFAULT_TIME_TO_RETAIN; 4871 params->header_digest = ISCSI_DEFAULT_HEADER_DIGEST; 4872 params->data_digest = ISCSI_DEFAULT_DATA_DIGEST; 4873 params->max_recv_data_seg_len = ISCSI_DEFAULT_MAX_RECV_SEG_LEN; 4874 params->max_xmit_data_seg_len = ISCSI_DEFAULT_MAX_XMIT_SEG_LEN; 4875 params->max_connections = ISCSI_DEFAULT_MAX_CONNECTIONS; 4876 params->max_outstanding_r2t = ISCSI_DEFAULT_MAX_OUT_R2T; 4877 params->error_recovery_level = ISCSI_DEFAULT_ERROR_RECOVERY_LEVEL; 4878 params->ifmarker = ISCSI_DEFAULT_IFMARKER; 4879 params->ofmarker = ISCSI_DEFAULT_OFMARKER; 4880 } 4881 4882 /* Helper function to sets the driver default tunable parameters */ 4883 static void 4884 iscsi_set_default_tunable_params(iscsi_tunable_params_t *params) 4885 { 4886 params->recv_login_rsp_timeout = ISCSI_DEFAULT_RX_TIMEOUT_VALUE; 4887 params->conn_login_max = ISCSI_DEFAULT_CONN_DEFAULT_LOGIN_MAX; 4888 params->polling_login_delay = ISCSI_DEFAULT_LOGIN_POLLING_DELAY; 4889 } 4890 4891 /* 4892 * +--------------------------------------------------------------------+ 4893 * | End of struct utility routines | 4894 * +--------------------------------------------------------------------+ 4895 */ 4896 4897 /* 4898 * +--------------------------------------------------------------------+ 4899 * | Begin of ioctl utility routines | 4900 * +--------------------------------------------------------------------+ 4901 */ 4902 4903 /* 4904 * iscsi_get_param - This function is a helper to ISCSI_GET_PARAM 4905 * IOCTL 4906 */ 4907 int 4908 iscsi_get_param(iscsi_login_params_t *params, boolean_t valid_flag, 4909 iscsi_param_get_t *ipgp) { 4910 int rtn = 0; 4911 4912 /* ---- Default to settable, possibly changed later ---- */ 4913 ipgp->g_value.v_valid = valid_flag; 4914 ipgp->g_value.v_settable = B_TRUE; 4915 4916 switch (ipgp->g_param) { 4917 /* 4918 * Boolean parameters 4919 */ 4920 case ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER: 4921 ipgp->g_value.v_bool.b_current = 4922 params->data_sequence_in_order; 4923 ipgp->g_value.v_bool.b_default = 4924 ISCSI_DEFAULT_DATA_SEQUENCE_IN_ORDER; 4925 break; 4926 case ISCSI_LOGIN_PARAM_IMMEDIATE_DATA: 4927 ipgp->g_value.v_bool.b_current = 4928 params->immediate_data; 4929 ipgp->g_value.v_bool.b_default = 4930 ISCSI_DEFAULT_IMMEDIATE_DATA; 4931 break; 4932 case ISCSI_LOGIN_PARAM_INITIAL_R2T: 4933 ipgp->g_value.v_bool.b_current = 4934 params->initial_r2t; 4935 ipgp->g_value.v_bool.b_default = 4936 ISCSI_DEFAULT_IMMEDIATE_DATA; 4937 break; 4938 case ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER: 4939 ipgp->g_value.v_bool.b_current = 4940 params->data_pdu_in_order; 4941 ipgp->g_value.v_bool.b_default = 4942 ISCSI_DEFAULT_DATA_PDU_IN_ORDER; 4943 break; 4944 4945 /* 4946 * Integer parameters 4947 */ 4948 case ISCSI_LOGIN_PARAM_HEADER_DIGEST: 4949 ipgp->g_value.v_integer.i_current = params->header_digest; 4950 ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_HEADER_DIGEST; 4951 ipgp->g_value.v_integer.i_min = 0; 4952 ipgp->g_value.v_integer.i_max = ISCSI_MAX_HEADER_DIGEST; 4953 ipgp->g_value.v_integer.i_incr = 1; 4954 break; 4955 case ISCSI_LOGIN_PARAM_DATA_DIGEST: 4956 ipgp->g_value.v_integer.i_current = params->data_digest; 4957 ipgp->g_value.v_integer.i_default = ISCSI_DEFAULT_DATA_DIGEST; 4958 ipgp->g_value.v_integer.i_min = 0; 4959 ipgp->g_value.v_integer.i_max = ISCSI_MAX_DATA_DIGEST; 4960 ipgp->g_value.v_integer.i_incr = 1; 4961 break; 4962 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN: 4963 ipgp->g_value.v_integer.i_current = 4964 params->default_time_to_retain; 4965 ipgp->g_value.v_integer.i_default = 4966 ISCSI_DEFAULT_TIME_TO_RETAIN; 4967 ipgp->g_value.v_integer.i_min = 0; 4968 ipgp->g_value.v_integer.i_max = ISCSI_MAX_TIME2RETAIN; 4969 ipgp->g_value.v_integer.i_incr = 1; 4970 break; 4971 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT: 4972 ipgp->g_value.v_integer.i_current = 4973 params->default_time_to_wait; 4974 ipgp->g_value.v_integer.i_default = 4975 ISCSI_DEFAULT_TIME_TO_WAIT; 4976 ipgp->g_value.v_integer.i_min = 0; 4977 ipgp->g_value.v_integer.i_max = ISCSI_MAX_TIME2WAIT; 4978 ipgp->g_value.v_integer.i_incr = 1; 4979 break; 4980 case ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL: 4981 ipgp->g_value.v_integer.i_current = 4982 params->error_recovery_level; 4983 ipgp->g_value.v_integer.i_default = 4984 ISCSI_DEFAULT_ERROR_RECOVERY_LEVEL; 4985 ipgp->g_value.v_integer.i_min = 0; 4986 ipgp->g_value.v_integer.i_max = ISCSI_MAX_ERROR_RECOVERY_LEVEL; 4987 ipgp->g_value.v_integer.i_incr = 1; 4988 ipgp->g_value.v_settable = B_FALSE; 4989 break; 4990 case ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH: 4991 ipgp->g_value.v_integer.i_current = 4992 params->first_burst_length; 4993 ipgp->g_value.v_integer.i_default = 4994 ISCSI_DEFAULT_FIRST_BURST_LENGTH; 4995 ipgp->g_value.v_integer.i_min = 512; 4996 ipgp->g_value.v_integer.i_max = ISCSI_MAX_FIRST_BURST_LENGTH; 4997 ipgp->g_value.v_integer.i_incr = 1; 4998 break; 4999 case ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH: 5000 ipgp->g_value.v_integer.i_current = 5001 params->max_burst_length; 5002 ipgp->g_value.v_integer.i_default = 5003 ISCSI_DEFAULT_MAX_BURST_LENGTH; 5004 ipgp->g_value.v_integer.i_min = 512; 5005 ipgp->g_value.v_integer.i_max = ISCSI_MAX_BURST_LENGTH; 5006 ipgp->g_value.v_integer.i_incr = 1; 5007 break; 5008 case ISCSI_LOGIN_PARAM_MAX_CONNECTIONS: 5009 ipgp->g_value.v_integer.i_current = 5010 params->max_connections; 5011 ipgp->g_value.v_settable = B_FALSE; 5012 ipgp->g_value.v_integer.i_default = 5013 ISCSI_DEFAULT_MAX_CONNECTIONS; 5014 ipgp->g_value.v_integer.i_min = 1; 5015 ipgp->g_value.v_integer.i_max = ISCSI_MAX_CONNECTIONS; 5016 ipgp->g_value.v_integer.i_incr = 1; 5017 break; 5018 case ISCSI_LOGIN_PARAM_OUTSTANDING_R2T: 5019 ipgp->g_value.v_integer.i_current = 5020 params->max_outstanding_r2t; 5021 ipgp->g_value.v_settable = B_FALSE; 5022 ipgp->g_value.v_integer.i_default = 5023 ISCSI_DEFAULT_MAX_OUT_R2T; 5024 ipgp->g_value.v_integer.i_min = 1; 5025 ipgp->g_value.v_integer.i_max = ISCSI_MAX_OUTSTANDING_R2T; 5026 ipgp->g_value.v_integer.i_incr = 1; 5027 break; 5028 case ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH: 5029 ipgp->g_value.v_integer.i_current = 5030 params->max_recv_data_seg_len; 5031 ipgp->g_value.v_integer.i_default = 5032 ISCSI_DEFAULT_MAX_RECV_SEG_LEN; 5033 ipgp->g_value.v_integer.i_min = 512; 5034 ipgp->g_value.v_integer.i_max = 5035 ISCSI_MAX_RECV_DATA_SEGMENT_LENGTH; 5036 ipgp->g_value.v_integer.i_incr = 1; 5037 break; 5038 default: 5039 rtn = EINVAL; 5040 } 5041 5042 return (rtn); 5043 } 5044 5045 /* 5046 * +--------------------------------------------------------------------+ 5047 * | End of ioctl utility routines | 5048 * +--------------------------------------------------------------------+ 5049 */ 5050 5051 /* 5052 * iscsi_get_name_from_iqn - Translates a normal iqn/eui into a 5053 * IEEE safe address. IEEE addresses have a number of characters 5054 * set aside as reserved. 5055 */ 5056 static void 5057 iscsi_get_name_from_iqn(char *name, int name_max_len) 5058 { 5059 char *tmp = NULL; 5060 char *oldch = NULL; 5061 char *newch = NULL; 5062 5063 tmp = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); 5064 5065 for (oldch = &name[0], newch = &tmp[0]; *oldch != '\0'; 5066 oldch++, newch++) { 5067 switch (*oldch) { 5068 case ':': 5069 *newch++ = '%'; 5070 *newch++ = '3'; 5071 *newch = 'A'; 5072 break; 5073 case ' ': 5074 *newch++ = '%'; 5075 *newch++ = '2'; 5076 *newch = '0'; 5077 break; 5078 case '@': 5079 *newch++ = '%'; 5080 *newch++ = '4'; 5081 *newch = '0'; 5082 break; 5083 case '/': 5084 *newch++ = '%'; 5085 *newch++ = '2'; 5086 *newch = 'F'; 5087 break; 5088 default: 5089 *newch = *oldch; 5090 } 5091 } 5092 (void) strncpy(name, tmp, name_max_len); 5093 kmem_free(tmp, MAX_GET_NAME_SIZE); 5094 } 5095 5096 /* 5097 * iscsi_get_name_to_iqn - Converts IEEE safe address back 5098 * into a iscsi iqn/eui. 5099 */ 5100 static void 5101 iscsi_get_name_to_iqn(char *name, int name_max_len) 5102 { 5103 char *tmp = NULL; 5104 char *oldch = NULL; 5105 char *newch = NULL; 5106 5107 tmp = kmem_zalloc(MAX_GET_NAME_SIZE, KM_SLEEP); 5108 5109 for (oldch = &name[0], newch = &tmp[0]; *oldch != '\0'; 5110 oldch++, newch++) { 5111 if (*oldch == '%') { 5112 switch (*(oldch+1)) { 5113 case '2': 5114 if (*(oldch+2) == '0') { 5115 *newch = ' '; 5116 oldch += 2; 5117 } else if (*(oldch+2) == 'F') { 5118 *newch = '/'; 5119 oldch += 2; 5120 } else { 5121 *newch = *oldch; 5122 } 5123 break; 5124 case '3': 5125 if (*(oldch+2) == 'A') { 5126 *newch = ':'; 5127 oldch += 2; 5128 } else { 5129 *newch = *oldch; 5130 } 5131 break; 5132 case '4': 5133 if (*(oldch+2) == '0') { 5134 *newch = '@'; 5135 oldch += 2; 5136 } else { 5137 *newch = *oldch; 5138 } 5139 break; 5140 default: 5141 *newch = *oldch; 5142 } 5143 } else { 5144 *newch = *oldch; 5145 } 5146 } 5147 (void) strncpy(name, tmp, name_max_len); 5148 kmem_free(tmp, MAX_GET_NAME_SIZE); 5149 } 5150 5151 /* 5152 * iscsi_get_persisted_param * - a helper to ISCSI_GET_PARAM ioctl 5153 * 5154 * On return 0 means persisted parameter found 5155 */ 5156 int 5157 iscsi_get_persisted_param(uchar_t *name, iscsi_param_get_t *ipgp, 5158 iscsi_login_params_t *params) 5159 { 5160 int rtn = 1; 5161 persistent_param_t *pparam; 5162 5163 if (name == NULL || strlen((char *)name) == 0) { 5164 return (rtn); 5165 } 5166 5167 pparam = (persistent_param_t *)kmem_zalloc(sizeof (*pparam), KM_SLEEP); 5168 5169 if (persistent_param_get((char *)name, pparam) == B_TRUE) { 5170 if (pparam->p_bitmap & (1 << ipgp->g_param)) { 5171 /* Found configured parameter. */ 5172 bcopy(&pparam->p_params, params, sizeof (*params)); 5173 rtn = 0; 5174 } 5175 } 5176 5177 kmem_free(pparam, sizeof (*pparam)); 5178 5179 return (rtn); 5180 } 5181 5182 /* 5183 * iscsi_override_target_default - helper function set the target's default 5184 * login parameter if there is a configured initiator parameter. 5185 * 5186 */ 5187 static void 5188 iscsi_override_target_default(iscsi_hba_t *ihp, iscsi_param_get_t *ipg) 5189 { 5190 persistent_param_t *pp; 5191 iscsi_login_params_t *params; 5192 5193 pp = (persistent_param_t *)kmem_zalloc(sizeof (*pp), KM_SLEEP); 5194 if (persistent_param_get((char *)ihp->hba_name, pp) == B_TRUE) { 5195 if (pp->p_bitmap & (1 << ipg->g_param)) { 5196 params = &pp->p_params; 5197 switch (ipg->g_param) { 5198 case ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER: 5199 ipg->g_value.v_bool.b_default = 5200 params->data_sequence_in_order; 5201 break; 5202 case ISCSI_LOGIN_PARAM_IMMEDIATE_DATA: 5203 ipg->g_value.v_bool.b_default = 5204 params->immediate_data; 5205 break; 5206 case ISCSI_LOGIN_PARAM_INITIAL_R2T: 5207 ipg->g_value.v_bool.b_default = 5208 params->initial_r2t; 5209 break; 5210 case ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER: 5211 ipg->g_value.v_bool.b_default = 5212 params->data_pdu_in_order; 5213 break; 5214 case ISCSI_LOGIN_PARAM_HEADER_DIGEST: 5215 ipg->g_value.v_integer.i_default = 5216 params->header_digest; 5217 break; 5218 case ISCSI_LOGIN_PARAM_DATA_DIGEST: 5219 ipg->g_value.v_integer.i_default = 5220 params->data_digest; 5221 break; 5222 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN: 5223 ipg->g_value.v_integer.i_default = 5224 params->default_time_to_retain; 5225 break; 5226 case ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT: 5227 ipg->g_value.v_integer.i_default = 5228 params->default_time_to_wait; 5229 break; 5230 case ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL: 5231 ipg->g_value.v_integer.i_default = 5232 params->error_recovery_level; 5233 break; 5234 case ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH: 5235 ipg->g_value.v_integer.i_default = 5236 params->first_burst_length; 5237 break; 5238 case ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH: 5239 ipg->g_value.v_integer.i_default = 5240 params->max_burst_length; 5241 break; 5242 case ISCSI_LOGIN_PARAM_MAX_CONNECTIONS: 5243 ipg->g_value.v_integer.i_default = 5244 params->max_connections; 5245 break; 5246 case ISCSI_LOGIN_PARAM_OUTSTANDING_R2T: 5247 ipg->g_value.v_integer.i_default = 5248 params->max_outstanding_r2t; 5249 break; 5250 case ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH: 5251 ipg->g_value.v_integer.i_default = 5252 params->max_xmit_data_seg_len; 5253 break; 5254 default: 5255 break; 5256 } 5257 } 5258 } 5259 kmem_free(pp, sizeof (*pp)); 5260 } 5261 5262 static boolean_t 5263 iscsi_cmp_boot_sess_oid(iscsi_hba_t *ihp, uint32_t oid) 5264 { 5265 iscsi_sess_t *isp = NULL; 5266 5267 if (iscsi_chk_bootlun_mpxio(ihp)) { 5268 for (isp = ihp->hba_sess_list; isp; isp = isp->sess_next) { 5269 if ((isp->sess_oid == oid) && isp->sess_boot) { 5270 /* oid is session object */ 5271 break; 5272 } 5273 if ((isp->sess_target_oid == oid) && isp->sess_boot) { 5274 /* 5275 * oid is target object while 5276 * this session is boot session 5277 */ 5278 break; 5279 } 5280 } 5281 if (oid == ihp->hba_oid) { 5282 /* oid is initiator object id */ 5283 return (B_TRUE); 5284 } else if ((isp != NULL) && (isp->sess_boot)) { 5285 /* oid is boot session object id */ 5286 return (B_TRUE); 5287 } 5288 } 5289 return (B_FALSE); 5290 } 5291 5292 /* 5293 * iscsi_client_request_service - request the iSCSI service 5294 * returns true if the service is enabled and increases the count 5295 * returns false if the service is disabled 5296 * blocks until the service status is either enabled or disabled 5297 */ 5298 boolean_t 5299 iscsi_client_request_service(iscsi_hba_t *ihp) { 5300 boolean_t rval = B_TRUE; 5301 5302 mutex_enter(&ihp->hba_service_lock); 5303 while ((ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) || 5304 (ihp->hba_service_client_count == UINT_MAX)) { 5305 cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); 5306 } 5307 if (ihp->hba_service_status == ISCSI_SERVICE_ENABLED) { 5308 ihp->hba_service_client_count++; 5309 } else { 5310 rval = B_FALSE; 5311 } 5312 mutex_exit(&ihp->hba_service_lock); 5313 5314 return (rval); 5315 } 5316 5317 /* 5318 * iscsi_client_release_service - decrease the count and wake up 5319 * blocking threads if the count reaches zero 5320 */ 5321 void 5322 iscsi_client_release_service(iscsi_hba_t *ihp) { 5323 mutex_enter(&ihp->hba_service_lock); 5324 ASSERT(ihp->hba_service_client_count > 0); 5325 ihp->hba_service_client_count--; 5326 if (ihp->hba_service_client_count == 0) { 5327 cv_broadcast(&ihp->hba_service_cv); 5328 } 5329 mutex_exit(&ihp->hba_service_lock); 5330 } 5331 5332 /* 5333 * iscsi_enter_service_zone - enter the service zone, should be called 5334 * before doing any modifications to the service status 5335 * return TRUE if the zone is entered 5336 * FALSE if no need to enter the zone 5337 */ 5338 static boolean_t 5339 iscsi_enter_service_zone(iscsi_hba_t *ihp, uint32_t status) { 5340 if ((status != ISCSI_SERVICE_ENABLED) && 5341 (status != ISCSI_SERVICE_DISABLED)) { 5342 return (B_FALSE); 5343 } 5344 5345 mutex_enter(&ihp->hba_service_lock); 5346 while (ihp->hba_service_status == ISCSI_SERVICE_TRANSITION) { 5347 cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); 5348 } 5349 if (ihp->hba_service_status == status) { 5350 mutex_exit(&ihp->hba_service_lock); 5351 return (B_FALSE); 5352 } 5353 ihp->hba_service_status = ISCSI_SERVICE_TRANSITION; 5354 while (ihp->hba_service_client_count > 0) { 5355 cv_wait(&ihp->hba_service_cv, &ihp->hba_service_lock); 5356 } 5357 mutex_exit(&ihp->hba_service_lock); 5358 return (B_TRUE); 5359 } 5360 5361 /* 5362 * iscsi_exit_service_zone - exits the service zone and wakes up waiters 5363 */ 5364 static void 5365 iscsi_exit_service_zone(iscsi_hba_t *ihp, uint32_t status) { 5366 if ((status != ISCSI_SERVICE_ENABLED) && 5367 (status != ISCSI_SERVICE_DISABLED)) { 5368 return; 5369 } 5370 5371 mutex_enter(&ihp->hba_service_lock); 5372 ASSERT(ihp->hba_service_status == ISCSI_SERVICE_TRANSITION); 5373 ihp->hba_service_status = status; 5374 cv_broadcast(&ihp->hba_service_cv); 5375 mutex_exit(&ihp->hba_service_lock); 5376 } 5377 5378 static void 5379 iscsi_check_miniroot(iscsi_hba_t *ihp) { 5380 if (strncmp(rootfs.bo_name, "/ramdisk", 8) == 0) { 5381 /* 5382 * in miniroot we don't have the persistent store 5383 * so just to need to ensure an enabled status 5384 */ 5385 ihp->hba_service_status = ISCSI_SERVICE_ENABLED; 5386 } 5387 } 5388 5389 static void 5390 iscsi_get_tunable_default(iscsi_tunable_object_t *param) { 5391 int param_id = 0; 5392 5393 param_id = 1 << (param->t_param - 1); 5394 param->t_set = B_FALSE; 5395 switch (param_id) { 5396 case ISCSI_TUNABLE_PARAM_RX_TIMEOUT_VALUE: 5397 param->t_value.v_integer = ISCSI_DEFAULT_RX_TIMEOUT_VALUE; 5398 break; 5399 case ISCSI_TUNABLE_PARAM_LOGIN_POLLING_DELAY: 5400 param->t_value.v_integer = ISCSI_DEFAULT_LOGIN_POLLING_DELAY; 5401 break; 5402 case ISCSI_TUNABLE_PARAM_CONN_LOGIN_MAX: 5403 param->t_value.v_integer = ISCSI_DEFAULT_CONN_DEFAULT_LOGIN_MAX; 5404 break; 5405 default: 5406 break; 5407 } 5408 } 5409 5410 /* 5411 * iscsi_get_persisted_tunable_param * - a helper to ISCSI_TUNABLE_PARAM_GET 5412 * ioctl 5413 * return: 5414 * 0 persisted tunable parameter found 5415 * 1 persisted tunable parameter not found 5416 */ 5417 static int 5418 iscsi_get_persisted_tunable_param(uchar_t *name, iscsi_tunable_object_t *tpsg) 5419 { 5420 int rtn = 1; 5421 int param_id = 0; 5422 persistent_tunable_param_t *pparam; 5423 5424 if ((name == NULL) || strlen((char *)name) == 0) { 5425 return (rtn); 5426 } 5427 5428 tpsg->t_set = B_FALSE; 5429 pparam = (persistent_tunable_param_t *)kmem_zalloc(sizeof (*pparam), 5430 KM_SLEEP); 5431 if (persistent_get_tunable_param((char *)name, pparam) == B_TRUE) { 5432 if (pparam->p_bitmap & (1 << (tpsg->t_param - 1))) { 5433 tpsg->t_set = B_TRUE; 5434 param_id = 1 << (tpsg->t_param - 1); 5435 switch (param_id) { 5436 case ISCSI_TUNABLE_PARAM_RX_TIMEOUT_VALUE: 5437 tpsg->t_value.v_integer = 5438 pparam->p_params.recv_login_rsp_timeout; 5439 break; 5440 case ISCSI_TUNABLE_PARAM_LOGIN_POLLING_DELAY: 5441 tpsg->t_value.v_integer = 5442 pparam->p_params.polling_login_delay; 5443 break; 5444 case ISCSI_TUNABLE_PARAM_CONN_LOGIN_MAX: 5445 tpsg->t_value.v_integer = 5446 pparam->p_params.conn_login_max; 5447 break; 5448 default: 5449 break; 5450 } 5451 rtn = 0; 5452 } 5453 } 5454 5455 kmem_free(pparam, sizeof (*pparam)); 5456 5457 return (rtn); 5458 } 5459