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 /* 23 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright 2014 Nexenta Systems, Inc. All rights reserved. 25 * Copyright (c) 2017, Joyent, Inc. All rights reserved. 26 */ 27 28 #ifndef _ISCSIT_H_ 29 #define _ISCSIT_H_ 30 31 #include <sys/iscsit/iscsi_if.h> 32 #include <sys/iscsit/iscsit_common.h> 33 34 #include "iscsit_authclient.h" 35 36 /* 37 * For some reason iscsi_protocol.h lists the max version as "0x02" and the 38 * min version as "0x00". RFC3720 clearly states that the current version 39 * number is 0x00 so that is what we will use. 40 */ 41 #define ISCSIT_MIN_VERSION 0x00 42 #define ISCSIT_MAX_VERSION 0x00 43 #define ISCSIT_MAX_CONNECTIONS 32 /* MC/S support */ 44 #define ISCSIT_MAX_RECV_DATA_SEGMENT_LENGTH (32*1024) 45 #define ISCSIT_MAX_BURST_LENGTH (1024*1024) 46 #define ISCSIT_MAX_FIRST_BURST_LENGTH ISCSI_DEFAULT_FIRST_BURST_LENGTH 47 #define ISCSIT_MAX_TIME2WAIT ISCSI_MAX_TIME2WAIT 48 #define ISCSIT_MAX_TIME2RETAIN ISCSI_DEFAULT_TIME_TO_RETAIN 49 #define ISCSIT_MAX_OUTSTANDING_R2T ISCSI_DEFAULT_MAX_OUT_R2T 50 #define ISCSIT_MAX_ERROR_RECOVERY_LEVEL 0 51 #define ISCSIT_MAX_OUTSTANDING_UNEXPECTED_PDUS 0 52 53 #define ISCSIT_DEFAULT_TPG "iscsit-default-tpg" 54 #define ISCSIT_DEFAULT_TPGT 1 55 56 #define ISCSI_MAX_TSIH 0xffff 57 #define ISCSI_UNSPEC_TSIH 0 58 59 /* Max targets per system */ 60 #define ISCSIT_MAX_TARGETS 1024 61 62 #define ISCSIT_MAX_WINDOW 1024 63 #define ISCSIT_RXPDU_QUEUE_LEN 2048 64 65 /* 66 * MC/S: A timeout is maintained to recover from lost CmdSN (holes in the 67 * CmdSN ordering). When the timeout is reached, the ExpCmdSN is advanced 68 * past the hole to continue processing the queued commands. This value is 69 * system-tunable (volatile rxpdu_queue_threshold) and should be in the 70 * range from 5 to 30 seconds. 71 */ 72 #define ISCSIT_RXPDU_QUEUE_THRESHOLD 5 /* 5 seconds */ 73 #define ISCSIT_RXPDU_QUEUE_MONITOR_INTERVAL 5 /* 5 seconds */ 74 75 /* Time in seconds to wait between calls to stmf_deregister_local_port */ 76 #define TGT_DEREG_RETRY_SECONDS 1 77 78 #define ISCSIT_GLOBAL_LOCK(rw) rw_enter(&iscsit_global.global_rwlock, (rw)) 79 #define ISCSIT_GLOBAL_UNLOCK() rw_exit(&iscsit_global.global_rwlock) 80 81 /* Circular buffer to hold the out-of-order PDUs in MC/S */ 82 typedef struct { 83 idm_pdu_t *cb_buffer[ISCSIT_RXPDU_QUEUE_LEN]; 84 int cb_num_elems; 85 } iscsit_cbuf_t; 86 87 /* 88 * Used for serial number arithmetic (RFC 1982) 89 */ 90 #define ISCSIT_SNA32_CHECK 0x80000000 91 92 typedef struct { 93 char tpg_name[MAX_TPG_NAMELEN]; 94 kmutex_t tpg_mutex; 95 idm_refcnt_t tpg_refcnt; 96 int tpg_online; 97 avl_tree_t tpg_portal_list; 98 avl_node_t tpg_global_ln; 99 list_node_t tpg_delete_ln; 100 } iscsit_tpg_t; 101 102 #define IS_DEFAULT_TPGT(TPGT) \ 103 (((TPGT) != NULL) && \ 104 ((TPGT)->tpgt_tpg == iscsit_global.global_default_tpg)) 105 106 typedef struct { 107 iscsit_tpg_t *tpgt_tpg; 108 idm_refcnt_t tpgt_refcnt; 109 avl_node_t tpgt_tgt_ln; 110 list_node_t tpgt_delete_ln; 111 uint16_t tpgt_tag; 112 boolean_t tpgt_needs_tpg_offline; 113 } iscsit_tpgt_t; 114 115 typedef struct { 116 struct sockaddr_storage portal_addr; 117 int portal_online; 118 idm_refcnt_t portal_refcnt; 119 avl_node_t portal_tpg_ln; 120 iscsit_tpg_t *portal_tpg; 121 idm_svc_t *portal_svc; 122 boolean_t portal_default; 123 void *portal_isns; 124 } iscsit_portal_t; 125 126 127 /* Target states and events, update iscsit_ts_name table whenever modified */ 128 typedef enum { 129 TS_UNDEFINED = 0, 130 TS_CREATED, 131 TS_ONLINING, 132 TS_ONLINE, 133 TS_STMF_ONLINE, 134 TS_DELETING_NEED_OFFLINE, 135 TS_OFFLINING, 136 TS_OFFLINE, 137 TS_STMF_OFFLINE, 138 TS_DELETING_STMF_DEREG, 139 TS_DELETING_STMF_DEREG_FAIL, 140 TS_DELETING, 141 TS_MAX_STATE 142 } iscsit_tgt_state_t; 143 144 #ifdef ISCSIT_TGT_SM_STRINGS 145 static const char *iscsit_ts_name[TS_MAX_STATE+1] = { 146 "TS_UNDEFINED", 147 "TS_CREATED", 148 "TS_ONLINING", 149 "TS_ONLINE", 150 "TS_STMF_ONLINE", 151 "TS_DELETING_NEED_OFFLINE", 152 "TS_OFFLINING", 153 "TS_OFFLINE", 154 "TS_STMF_OFFLINE", 155 "TS_DELETING_STMF_DEREG", 156 "TS_DELETING_STMF_DEREG_FAIL", 157 "TS_DELETING", 158 "TS_MAX_STATE" 159 }; 160 #endif 161 162 typedef enum { 163 TE_UNDEFINED = 0, 164 TE_STMF_ONLINE_REQ, 165 TE_ONLINE_SUCCESS, 166 TE_ONLINE_FAIL, 167 TE_STMF_ONLINE_COMPLETE_ACK, 168 TE_STMF_OFFLINE_REQ, 169 TE_OFFLINE_COMPLETE, 170 TE_STMF_OFFLINE_COMPLETE_ACK, 171 TE_DELETE, 172 TE_STMF_DEREG_SUCCESS, 173 TE_STMF_DEREG_FAIL, 174 TE_STMF_DEREG_RETRY, 175 TE_WAIT_REF_COMPLETE, 176 TE_MAX_EVENT 177 } iscsit_tgt_event_t; 178 179 #ifdef ISCSIT_TGT_SM_STRINGS 180 static const char *iscsit_te_name[TE_MAX_EVENT+1] = { 181 "TE_UNDEFINED", 182 "TE_STMF_ONLINE_REQ", 183 "TE_ONLINE_SUCCESS", 184 "TE_ONLINE_FAIL", 185 "TE_STMF_ONLINE_COMPLETE_ACK", 186 "TE_STMF_OFFLINE_REQ", 187 "TE_OFFLINE_COMPLETE", 188 "TE_STMF_OFFLINE_COMPLETE_ACK", 189 "TE_DELETE", 190 "TE_STMF_DEREG_SUCCESS", 191 "TE_STMF_DEREG_FAIL", 192 "TE_STMF_DEREG_RETRY", 193 "TE_WAIT_REF_COMPLETE", 194 "TE_MAX_EVENT" 195 }; 196 #endif 197 198 typedef struct { 199 char *target_name; 200 nvlist_t *target_props; 201 kmutex_t target_mutex; 202 idm_refcnt_t target_refcnt; 203 idm_refcnt_t target_sess_refcnt; 204 avl_tree_t target_tpgt_list; 205 avl_tree_t target_sess_list; 206 avl_node_t target_global_ln; 207 avl_node_t target_global_deleted_ln; 208 /* STMF lport == iSCSI target */ 209 scsi_devid_desc_t *target_devid; 210 stmf_local_port_t *target_stmf_lport; 211 uint8_t target_stmf_lport_registered; 212 213 /* Target state */ 214 boolean_t target_sm_busy; 215 boolean_t target_deleting; 216 iscsit_tgt_state_t target_state; 217 iscsit_tgt_state_t target_last_state; 218 sm_audit_buf_t target_state_audit; 219 list_t target_events; 220 uint64_t target_generation; 221 } iscsit_tgt_t; 222 223 typedef struct { 224 char ini_name[MAX_ISCSI_NODENAMELEN]; 225 nvlist_t *ini_props; 226 avl_node_t ini_global_ln; 227 } iscsit_ini_t; 228 229 /* 230 * iSCSI Auth Information 231 */ 232 typedef struct conn_auth { 233 char ca_tgt_chapuser[iscsitAuthStringMaxLength]; 234 uint8_t ca_tgt_chapsecret[iscsitAuthStringMaxLength]; 235 int ca_tgt_chapsecretlen; 236 237 char ca_ini_chapuser[iscsitAuthStringMaxLength]; 238 uint8_t ca_ini_chapsecret[iscsitAuthStringMaxLength]; 239 int ca_ini_chapsecretlen; 240 241 /* RADIUS authentication information */ 242 boolean_t ca_use_radius; 243 struct sockaddr_storage ca_radius_server; 244 uint8_t ca_radius_secret[iscsitAuthStringMaxLength]; 245 int ca_radius_secretlen; 246 247 /* authentication method list */ 248 iscsit_auth_method_t ca_method_valid_list[iscsitAuthMethodMaxCount]; 249 250 /* Target alias */ 251 char ca_tgt_alias[MAX_ISCSI_NODENAMELEN]; 252 } conn_auth_t; 253 254 /* 255 * We have three state machines (so far) between the IDM connection state 256 * machine, the session state machine, and the login state machine. All 257 * of these states have some concept of "full feature mode". It's going 258 * to be obnoxious if we use a mixture of these "ffp" representations 259 * since it will be difficult to ensure the three state machines 260 * transition at exactly the same time. We should drive decisions that 261 * depend on FFP from the IDM state machine which is actually snooping 262 * the iSCSI PDU's and will always transition at the correct time. 263 * 264 * A consequence of this approach is that there is a window just after 265 * login completes where we may get a SCSI request but the session 266 * or login state machine has not quite transitioned to "FFP". Whether 267 * this is a problem depends on how we use those state machines. This 268 * is what we should use them for: 269 * 270 * IDM Connection state machine - Decisions related to command processing 271 * including whether a connection is in FFP 272 * 273 * Session state machine - Summarize the state of all available connections 274 * for the purposes of ERL1, ERL2 and MC/S. A session in LOGGED_IN state 275 * should always have at least one FFP connection but there may be a brief 276 * window where a session in ACTIVE might have one or more FFP connections 277 * even though ACTIVE is not strictly an FFP state according to the RFC. 278 * 279 * Login state machine -- drive the login process, collect negotiated 280 * parameters. Another side effect of this approach is that we may get 281 * the "notify ffp" callback from the IDM connection state machine before 282 * the login state machine has actually transitioned to FFP state. 283 */ 284 285 struct iscsit_conn_s; 286 287 /* Update iscsit_ss_name table whenever session states are modified */ 288 typedef enum { 289 SS_UNDEFINED = 0, 290 SS_Q1_FREE, 291 SS_Q2_ACTIVE, 292 SS_Q3_LOGGED_IN, 293 SS_Q4_FAILED, 294 SS_Q5_CONTINUE, 295 SS_Q6_DONE, 296 SS_Q7_ERROR, 297 /* Add new session states above SS_MAX_STATE */ 298 SS_MAX_STATE 299 } iscsit_session_state_t; 300 301 #ifdef ISCSIT_SESS_SM_STRINGS 302 /* An array of state text values, for use in logging state transitions */ 303 static const char *iscsit_ss_name[SS_MAX_STATE+1] = { 304 "SS_UNDEFINED", 305 "SS_Q1_FREE", 306 "SS_Q2_ACTIVE", 307 "SS_Q3_LOGGED_IN", 308 "SS_Q4_FAILED", 309 "SS_Q5_CONTINUE", 310 "SS_Q6_DONE", 311 "SS_Q7_ERROR", 312 "SS_MAX_STATE" 313 }; 314 #endif 315 316 /* Update iscsit_se_name table whenever session events are modified */ 317 typedef enum { 318 SE_UNDEFINED = 0, 319 SE_CONN_IN_LOGIN, /* From login state machine */ 320 SE_CONN_LOGGED_IN, /* FFP enabled client notification */ 321 SE_CONN_FFP_FAIL, /* FFP disabled client notification */ 322 SE_CONN_FFP_DISABLE, /* FFP disabled client notification */ 323 SE_CONN_FAIL, /* Conn destroy client notification */ 324 SE_SESSION_CLOSE, /* FFP disabled client notification */ 325 SE_SESSION_REINSTATE, /* From login state machine */ 326 SE_SESSION_TIMEOUT, /* Internal */ 327 SE_SESSION_CONTINUE, /* From login state machine */ 328 SE_SESSION_CONTINUE_FAIL, /* From login state machine? */ 329 /* Add new events above SE_MAX_EVENT */ 330 SE_MAX_EVENT 331 } iscsit_session_event_t; 332 333 #ifdef ISCSIT_SESS_SM_STRINGS 334 /* An array of event text values, for use in logging events */ 335 static const char *iscsit_se_name[SE_MAX_EVENT+1] = { 336 "SE_UNDEFINED", 337 "SE_CONN_IN_LOGIN", 338 "SE_CONN_LOGGED_IN", 339 "SE_CONN_FFP_FAIL", 340 "SE_CONN_FFP_DISABLE", 341 "SE_CONN_FAIL", 342 "SE_SESSION_CLOSE", 343 "SE_SESSION_REINSTATE", 344 "SE_SESSION_TIMEOUT", 345 "SE_SESSION_CONTINUE", 346 "SE_SESSION_CONTINUE_FAIL", 347 "SE_MAX_EVENT" 348 }; 349 #endif 350 351 /* 352 * Set in ist_tgt after iscsit_tgt_unbind_sess to differentiate an unbound 353 * session from a discovery session. 354 */ 355 #define SESS_UNBOUND_FROM_TGT -1 356 357 typedef struct { 358 stmf_scsi_session_t *ist_stmf_sess; 359 stmf_local_port_t *ist_lport; 360 iscsit_tgt_t *ist_tgt; 361 idm_refcnt_t ist_refcnt; 362 kmem_cache_t *ist_task_cache; 363 kmutex_t ist_sn_mutex; 364 kmutex_t ist_mutex; 365 kcondvar_t ist_cv; 366 iscsit_session_state_t ist_state; 367 iscsit_session_state_t ist_last_state; 368 sm_audit_buf_t ist_state_audit; 369 boolean_t ist_sm_busy; 370 boolean_t ist_sm_complete; 371 boolean_t ist_admin_close; 372 list_t ist_events; 373 int ist_conn_count; 374 int ist_ffp_conn_count; 375 struct iscsit_conn_s *ist_failed_conn; 376 timeout_id_t ist_state_timeout; 377 list_t ist_conn_list; 378 avl_node_t ist_tgt_ln; 379 char *ist_initiator_name; 380 char *ist_initiator_alias; 381 char *ist_target_name; 382 char *ist_target_alias; 383 uint8_t ist_isid[ISCSI_ISID_LEN]; 384 uint16_t ist_tsih; 385 uint16_t ist_tpgt_tag; 386 uint32_t ist_expcmdsn; 387 uint32_t ist_maxcmdsn; 388 avl_tree_t ist_task_list; 389 iscsit_cbuf_t *ist_rxpdu_queue; 390 } iscsit_sess_t; 391 392 /* Update iscsit_ils_name table whenever login states are modified */ 393 typedef enum { 394 ILS_UNDEFINED = 0, 395 ILS_LOGIN_INIT, 396 ILS_LOGIN_WAITING, /* Waiting for more login PDU's */ 397 ILS_LOGIN_PROCESSING, /* Processing login request */ 398 ILS_LOGIN_RESPONDING, /* Sending login response */ 399 ILS_LOGIN_RESPONDED, /* Sent login response (no trans. to FFP) */ 400 ILS_LOGIN_FFP, /* Sending last login PDU for final response */ 401 ILS_LOGIN_DONE, /* Last login PDU sent (so we can free it) */ 402 ILS_LOGIN_ERROR, /* Login error, login failed */ 403 /* Add new login states above ILS_MAX_STATE */ 404 ILS_MAX_STATE 405 } iscsit_login_state_t; 406 407 #ifdef ISCSIT_LOGIN_SM_STRINGS 408 /* An array of login state text values, for use in logging login progress */ 409 static const char *iscsit_ils_name[ILS_MAX_STATE+1] = { 410 "ILS_UNDEFINED", 411 "ILS_LOGIN_INIT", 412 "ILS_LOGIN_WAITING", 413 "ILS_LOGIN_PROCESSING", 414 "ILS_LOGIN_RESPONDING", 415 "ILS_LOGIN_RESPONDED", 416 "ILS_LOGIN_FFP", 417 "ILS_LOGIN_DONE", 418 "ILS_LOGIN_ERROR", 419 "ILS_MAX_STATE" 420 }; 421 #endif 422 423 /* Update iscsit_ile_name table whenever login events are modified */ 424 typedef enum { 425 ILE_UNDEFINED = 0, 426 ILE_LOGIN_RCV, 427 ILE_LOGIN_RESP_READY, 428 ILE_LOGIN_FFP, 429 ILE_LOGIN_RESP_COMPLETE, 430 ILE_LOGIN_ERROR, 431 ILE_LOGIN_CONN_ERROR, 432 /* Add new login events above ILE_MAX_EVENT */ 433 ILE_MAX_EVENT 434 } iscsit_login_event_t; 435 436 #ifdef ISCSIT_LOGIN_SM_STRINGS 437 /* An array of login event text values, for use in logging login events */ 438 static const char *iscsit_ile_name[ILE_MAX_EVENT+1] = { 439 "ILE_UNDEFINED", 440 "ILE_LOGIN_RCV", 441 "ILE_LOGIN_RESP_READY", 442 "ILE_LOGIN_FFP", 443 "ILE_LOGIN_RESP_COMPLETE", 444 "ILE_LOGIN_ERROR", 445 "ILE_LOGIN_CONN_ERROR", 446 "ILE_MAX_EVENT" 447 }; 448 #endif 449 450 typedef struct { 451 uint32_t op_initial_params_set:1, 452 op_discovery_session:1, 453 op_initial_r2t:1, 454 op_immed_data:1, 455 op_data_pdu_in_order:1, 456 op_data_sequence_in_order:1, 457 op_declarative_params_set:1; 458 uint64_t op_max_connections; 459 uint64_t op_max_recv_data_segment_length; 460 uint64_t op_max_burst_length; 461 uint64_t op_first_burst_length; 462 uint64_t op_default_time_2_wait; 463 uint64_t op_default_time_2_retain; 464 uint64_t op_max_outstanding_r2t; 465 uint64_t op_error_recovery_level; 466 } iscsit_op_params_t; 467 468 typedef struct { 469 iscsit_login_state_t icl_login_state; 470 iscsit_login_state_t icl_login_last_state; 471 sm_audit_buf_t icl_state_audit; 472 boolean_t icl_busy; 473 boolean_t icl_login_complete; 474 kmutex_t icl_mutex; 475 uint32_t icl_login_itt; 476 uint8_t icl_login_csg; 477 uint8_t icl_login_nsg; 478 boolean_t icl_login_transit; 479 conn_auth_t icl_auth; 480 iscsit_auth_client_t icl_auth_client; 481 int icl_auth_pass; 482 list_t icl_login_events; 483 list_t icl_pdu_list; 484 uint16_t icl_tsih; 485 uint8_t icl_isid[ISCSI_ISID_LEN]; 486 uint32_t icl_cmdsn; 487 uint16_t icl_tpgt_tag; 488 char *icl_target_name; 489 char *icl_target_alias; 490 char *icl_initiator_name; 491 char *icl_login_resp_buf; 492 void *icl_login_resp_itb; /* mult-pdu idm buf */ 493 int icl_login_resp_len; /* For kmem_free */ 494 int icl_login_resp_valid_len; 495 uint8_t icl_login_resp_err_class; 496 uint8_t icl_login_resp_err_detail; 497 iscsi_login_rsp_hdr_t *icl_login_resp_tmpl; 498 nvlist_t *icl_request_nvlist; 499 nvlist_t *icl_response_nvlist; 500 nvlist_t *icl_negotiated_values; 501 } iscsit_conn_login_t; 502 503 #define SET_LOGIN_ERROR(SLE_ICT, SLE_CLASS, SLE_DETAIL) \ 504 (SLE_ICT)->ict_login_sm.icl_login_resp_err_class = (SLE_CLASS); \ 505 (SLE_ICT)->ict_login_sm.icl_login_resp_err_detail = (SLE_DETAIL); 506 507 typedef struct iscsit_conn_s { 508 idm_conn_t *ict_ic; 509 iscsit_sess_t *ict_sess; 510 kmutex_t ict_mutex; 511 idm_refcnt_t ict_refcnt; 512 idm_refcnt_t ict_dispatch_refcnt; 513 list_node_t ict_sess_ln; 514 iscsit_conn_login_t ict_login_sm; 515 iscsit_op_params_t ict_op; 516 uint16_t ict_cid; 517 uint32_t ict_statsn; 518 kmutex_t ict_statsn_mutex; 519 uint32_t ict_keepalive_ttt; 520 struct iscsit_conn_s *ict_reinstate_conn; 521 uint32_t ict_reinstating:1, 522 ict_lost:1, 523 ict_destroyed:1; 524 /* 525 * Parameters for processing text commands 526 */ 527 char *ict_text_rsp_buf; 528 uint32_t ict_text_rsp_len; 529 uint32_t ict_text_rsp_valid_len; 530 uint32_t ict_text_rsp_off; 531 uint32_t ict_text_req_itt; /* from initiator */ 532 uint32_t ict_text_rsp_ttt; 533 } iscsit_conn_t; 534 535 #define ICT_FLAGS_DISCOVERY 0x00000001 536 537 typedef struct { 538 idm_buf_t *ibuf_idm_buf; 539 stmf_data_buf_t *ibuf_stmf_buf; 540 idm_pdu_t *ibuf_immed_data_pdu; 541 boolean_t ibuf_is_immed; 542 } iscsit_buf_t; 543 544 typedef struct { 545 scsi_task_t *it_stmf_task; 546 idm_task_t *it_idm_task; 547 iscsit_buf_t *it_immed_data; 548 iscsit_conn_t *it_ict; 549 kmutex_t it_mutex; 550 idm_pdu_t *it_tm_pdu; 551 uint32_t it_stmf_abort:1, 552 it_aborted:1, 553 it_active:1, 554 it_tm_task:1, 555 it_tm_responded:1; 556 uint32_t it_cmdsn; 557 uint32_t it_itt; 558 uint32_t it_ttt; 559 avl_node_t it_sess_ln; 560 } iscsit_task_t; 561 562 typedef struct iscsit_isns_cfg { 563 kmutex_t isns_mutex; 564 boolean_t isns_state; 565 list_t isns_svrs; 566 } iscsit_isns_cfg_t; 567 568 /* 569 * State values for the iscsit service 570 */ 571 typedef enum { 572 ISE_UNDEFINED = 0, 573 ISE_DETACHED, 574 ISE_DISABLED, 575 ISE_ENABLING, 576 ISE_ENABLED, 577 ISE_BUSY, 578 ISE_DISABLING 579 } iscsit_service_enabled_t; 580 581 582 typedef struct { 583 iscsit_service_enabled_t global_svc_state; 584 dev_info_t *global_dip; 585 ldi_ident_t global_li; 586 nvlist_t *global_props; 587 stmf_port_provider_t *global_pp; 588 stmf_dbuf_store_t *global_dbuf_store; 589 taskq_t *global_dispatch_taskq; 590 idm_refcnt_t global_refcnt; 591 avl_tree_t global_discovery_sessions; 592 avl_tree_t global_target_list; 593 list_t global_deleted_target_list; 594 avl_tree_t global_tpg_list; 595 avl_tree_t global_ini_list; 596 iscsit_tpg_t *global_default_tpg; 597 vmem_t *global_tsih_pool; 598 iscsit_isns_cfg_t global_isns_cfg; 599 iscsi_radius_props_t global_radius_server; 600 krwlock_t global_rwlock; 601 kmutex_t global_state_mutex; 602 } iscsit_global_t; 603 604 extern iscsit_global_t iscsit_global; 605 606 void 607 iscsit_global_hold(); 608 609 void 610 iscsit_global_rele(); 611 612 void 613 iscsit_global_wait_ref(); 614 615 idm_status_t 616 iscsit_login_sm_init(iscsit_conn_t *ict); 617 618 void 619 iscsit_login_sm_fini(iscsit_conn_t *ict); 620 621 void 622 iscsit_login_sm_event(iscsit_conn_t *ic, iscsit_login_event_t event, 623 idm_pdu_t *pdu); 624 625 void 626 iscsit_login_sm_event_locked(iscsit_conn_t *ic, iscsit_login_event_t event, 627 idm_pdu_t *pdu); 628 629 int 630 iscsit_is_v4_mapped(struct sockaddr_storage *sa, struct sockaddr_storage *v4sa); 631 632 void 633 iscsit_send_async_event(iscsit_conn_t *ict, uint8_t async_event); 634 635 void 636 iscsit_pdu_tx(idm_pdu_t *pdu); 637 638 void 639 iscsit_send_reject(iscsit_conn_t *ict, idm_pdu_t *rejected_pdu, uint8_t reason); 640 641 void 642 iscsit_text_cmd_fini(iscsit_conn_t *ict); 643 644 /* 645 * IDM conn ops 646 */ 647 648 idm_rx_pdu_cb_t iscsit_op_scsi_cmd; 649 idm_rx_pdu_cb_t iscsit_rx_pdu; 650 idm_rx_pdu_error_cb_t iscsit_rx_pdu_error; 651 idm_rx_pdu_cb_t iscsit_rx_scsi_rsp; 652 idm_task_cb_t iscsit_task_aborted; 653 idm_client_notify_cb_t iscsit_client_notify; 654 idm_build_hdr_cb_t iscsit_build_hdr; 655 idm_update_statsn_cb_t iscsit_update_statsn; 656 idm_keepalive_cb_t iscsit_keepalive; 657 658 /* 659 * lport entry points 660 */ 661 stmf_status_t 662 iscsit_xfer_scsi_data(scsi_task_t *task, stmf_data_buf_t *dbuf, 663 uint32_t ioflags); 664 665 stmf_status_t 666 iscsit_send_scsi_status(scsi_task_t *task, uint32_t ioflags); 667 668 void 669 iscsit_lport_task_free(scsi_task_t *task); 670 671 stmf_status_t 672 iscsit_abort(stmf_local_port_t *lport, int abort_cmd, void *arg, 673 uint32_t flags); 674 675 void 676 iscsit_ctl(stmf_local_port_t *lport, int cmd, void *arg); 677 678 /* 679 * Connection functions 680 */ 681 idm_status_t 682 iscsit_conn_reinstate(iscsit_conn_t *existing_ict, iscsit_conn_t *ict); 683 684 void 685 iscsit_conn_destroy_done(iscsit_conn_t *ict); 686 687 void 688 iscsit_conn_set_auth(iscsit_conn_t *ict); 689 690 void 691 iscsit_conn_hold(iscsit_conn_t *ict); 692 693 void 694 iscsit_conn_rele(iscsit_conn_t *ict); 695 696 void 697 iscsit_conn_logout(iscsit_conn_t *ict); 698 699 /* 700 * Session functions 701 */ 702 int 703 iscsit_sess_avl_compare(const void *void_sess1, const void *void_sess2); 704 705 iscsit_sess_t * 706 iscsit_sess_create(iscsit_tgt_t *tgt, iscsit_conn_t *ict, 707 uint32_t cmdsn, uint8_t *isid, uint16_t tag, 708 char *initiator_name, char *target_name, 709 uint8_t *error_class, uint8_t *error_detail); 710 711 void 712 iscsit_sess_destroy(iscsit_sess_t *ist); 713 714 void 715 iscsit_sess_hold(iscsit_sess_t *ist); 716 717 idm_status_t 718 iscsit_sess_check_hold(iscsit_sess_t *ist); 719 720 void 721 iscsit_sess_rele(iscsit_sess_t *ist); 722 723 iscsit_conn_t * 724 iscsit_sess_lookup_conn(iscsit_sess_t *ist, uint16_t cid); 725 726 void 727 iscsit_sess_bind_conn(iscsit_sess_t *ist, iscsit_conn_t *ict); 728 729 void 730 iscsit_sess_unbind_conn(iscsit_sess_t *ist, iscsit_conn_t *ict); 731 732 void 733 iscsit_sess_close(iscsit_sess_t *ist); 734 735 iscsit_sess_t * 736 iscsit_sess_reinstate(iscsit_tgt_t *tgt, iscsit_sess_t *ist, iscsit_conn_t *ict, 737 uint8_t *error_class, uint8_t *error_detail); 738 739 void 740 iscsit_sess_sm_event(iscsit_sess_t *ist, iscsit_session_event_t event, 741 iscsit_conn_t *ict); 742 743 /* 744 * Target, TPGT, TPGT and portal functions 745 */ 746 747 void 748 iscsit_tgt_sm_event(iscsit_tgt_t *tgt, iscsit_tgt_event_t event); 749 750 void 751 tgt_sm_event_locked(iscsit_tgt_t *tgt, iscsit_tgt_event_t event); 752 753 it_cfg_status_t 754 iscsit_config_merge_tgt(it_config_t *cfg); 755 756 void 757 iscsit_config_destroy_tgts(list_t *tgt_del_list); 758 759 void 760 iscsit_config_destroy_tpgts(list_t *tpgt_del_list); 761 762 iscsit_tgt_t * 763 iscsit_tgt_lookup(char *target_name); 764 765 iscsit_tgt_t * 766 iscsit_tgt_lookup_locked(char *target_name); 767 768 int 769 iscsit_tgt_avl_compare(const void *void_tgt1, const void *void_tgt2); 770 771 int 772 iscsit_tpgt_avl_compare(const void *void_tpgt1, const void *void_tpgt2); 773 774 void 775 iscsit_tgt_hold(iscsit_tgt_t *tgt); 776 777 void 778 iscsit_tgt_rele(iscsit_tgt_t *tgt); 779 780 iscsit_tpgt_t * 781 iscsit_tgt_lookup_tpgt(iscsit_tgt_t *tgt, uint16_t tag); 782 783 void 784 iscsit_tpgt_hold(iscsit_tpgt_t *tpgt); 785 786 void 787 iscsit_tpgt_rele(iscsit_tpgt_t *tpgt); 788 789 iscsit_portal_t * 790 iscsit_tgt_lookup_portal(iscsit_tgt_t *tgt, struct sockaddr_storage *sa, 791 iscsit_tpgt_t **output_tpgt); 792 793 iscsit_sess_t * 794 iscsit_tgt_lookup_sess(iscsit_tgt_t *tgt, char *initiator_name, 795 uint8_t *isid, uint16_t tsih, uint16_t tag); 796 797 void 798 iscsit_tgt_bind_sess(iscsit_tgt_t *tgt, iscsit_sess_t *sess); 799 800 void 801 iscsit_tgt_unbind_sess(iscsit_tgt_t *tgt, iscsit_sess_t *sess); 802 803 it_cfg_status_t 804 iscsit_config_merge_tpg(it_config_t *cfg, list_t *tpg_del_list); 805 806 void 807 iscsit_config_destroy_tpgs(list_t *tpg_del_list); 808 809 iscsit_tpg_t * 810 iscsit_tpg_lookup(char *tpg_name); 811 812 int 813 iscsit_tpg_avl_compare(const void *void_tpg1, const void *void_tpg2); 814 815 void 816 iscsit_tpg_hold(iscsit_tpg_t *tpg); 817 818 void 819 iscsit_tpg_rele(iscsit_tpg_t *tpg); 820 821 iscsit_tpg_t * 822 iscsit_tpg_createdefault(); 823 824 void 825 iscsit_tpg_destroydefault(iscsit_tpg_t *tpg); 826 827 idm_status_t 828 iscsit_tpg_online(iscsit_tpg_t *tpg); 829 830 void 831 iscsit_tpg_offline(iscsit_tpg_t *tpg); 832 833 iscsit_portal_t * 834 iscsit_tpg_portal_lookup(iscsit_tpg_t *tpg, struct sockaddr_storage *sa); 835 836 void 837 iscsit_portal_hold(iscsit_portal_t *portal); 838 839 void 840 iscsit_portal_rele(iscsit_portal_t *portal); 841 842 it_cfg_status_t 843 iscsit_config_merge_ini(it_config_t *cfg); 844 845 int 846 iscsit_ini_avl_compare(const void *void_ini1, const void *void_ini2); 847 848 iscsit_ini_t * 849 iscsit_ini_lookup_locked(char *ini_name); 850 851 int 852 iscsit_portal_avl_compare(const void *void_portal1, const void *void_portal2); 853 854 int 855 iscsit_verify_chap_resp(iscsit_conn_login_t *lsm, 856 unsigned int chap_i, uchar_t *chap_c, unsigned int challenge_len, 857 uchar_t *chap_r, unsigned int resp_len); 858 859 void 860 iscsit_rxpdu_queue_monitor_start(void); 861 862 void 863 iscsit_rxpdu_queue_monitor_stop(void); 864 865 #endif /* _ISCSIT_H_ */ 866