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 2015 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 #define ISCSIT_MAX_WINDOW 1024
60 #define ISCSIT_RXPDU_QUEUE_LEN 2048
61
62 /*
63 * MC/S: A timeout is maintained to recover from lost CmdSN (holes in the
64 * CmdSN ordering). When the timeout is reached, the ExpCmdSN is advanced
65 * past the hole to continue processing the queued commands. This value is
66 * system-tunable (volatile rxpdu_queue_threshold) and should be in the
67 * range from 5 to 30 seconds.
68 */
69 #define ISCSIT_RXPDU_QUEUE_THRESHOLD 5 /* 5 seconds */
70 #define ISCSIT_RXPDU_QUEUE_MONITOR_INTERVAL 5 /* 5 seconds */
71
72 /* Time in seconds to wait between calls to stmf_deregister_local_port */
73 #define TGT_DEREG_RETRY_SECONDS 1
74
75 #define ISCSIT_GLOBAL_LOCK(rw) rw_enter(&iscsit_global.global_rwlock, (rw))
76 #define ISCSIT_GLOBAL_UNLOCK() rw_exit(&iscsit_global.global_rwlock)
77
78 /* Circular buffer to hold the out-of-order PDUs in MC/S */
79 typedef struct {
80 idm_pdu_t *cb_buffer[ISCSIT_RXPDU_QUEUE_LEN];
81 int cb_num_elems;
82 } iscsit_cbuf_t;
83
84 /*
85 * Used for serial number arithmetic (RFC 1982)
86 */
87 #define ISCSIT_SNA32_CHECK 0x80000000
88
89 typedef struct {
90 char tpg_name[MAX_TPG_NAMELEN];
91 kmutex_t tpg_mutex;
92 idm_refcnt_t tpg_refcnt;
93 int tpg_online;
94 avl_tree_t tpg_portal_list;
95 avl_node_t tpg_global_ln;
96 list_node_t tpg_delete_ln;
97 } iscsit_tpg_t;
98
99 #define IS_DEFAULT_TPGT(TPGT) \
100 (((TPGT) != NULL) && \
101 ((TPGT)->tpgt_tpg == iscsit_global.global_default_tpg))
102
103 typedef struct {
104 iscsit_tpg_t *tpgt_tpg;
105 idm_refcnt_t tpgt_refcnt;
106 avl_node_t tpgt_tgt_ln;
107 list_node_t tpgt_delete_ln;
108 uint16_t tpgt_tag;
109 boolean_t tpgt_needs_tpg_offline;
110 } iscsit_tpgt_t;
111
112 typedef struct {
113 struct sockaddr_storage portal_addr;
114 int portal_online;
115 idm_refcnt_t portal_refcnt;
116 avl_node_t portal_tpg_ln;
117 iscsit_tpg_t *portal_tpg;
118 idm_svc_t *portal_svc;
119 boolean_t portal_default;
120 void *portal_isns;
121 } iscsit_portal_t;
122
123
124 #define TGT_STATE_LIST() \
125 item(TS_UNDEFINED) \
126 item(TS_CREATED) \
127 item(TS_ONLINING) \
128 item(TS_ONLINE) \
129 item(TS_STMF_ONLINE) \
130 item(TS_DELETING_NEED_OFFLINE) \
131 item(TS_OFFLINING) \
132 item(TS_OFFLINE) \
133 item(TS_STMF_OFFLINE) \
134 item(TS_DELETING_STMF_DEREG) \
135 item(TS_DELETING_STMF_DEREG_FAIL) \
136 item(TS_DELETING) \
137 item(TS_MAX_STATE)
138
139 /* Target states and events, update iscsit_ts_name table whenever modified */
140 typedef enum {
141 #define item(a) a,
142 TGT_STATE_LIST()
143 #undef item
144 } iscsit_tgt_state_t;
145
146 #ifdef ISCSIT_TGT_SM_STRINGS
147 static const char *iscsit_ts_name[TS_MAX_STATE + 1] = {
148 #define item(a) #a,
149 TGT_STATE_LIST()
150 #undef item
151 };
152 #endif
153
154 #define TGT_EVENT_LIST() \
155 item(TE_UNDEFINED) \
156 item(TE_STMF_ONLINE_REQ) \
157 item(TE_ONLINE_SUCCESS) \
158 item(TE_ONLINE_FAIL) \
159 item(TE_STMF_ONLINE_COMPLETE_ACK) \
160 item(TE_STMF_OFFLINE_REQ) \
161 item(TE_OFFLINE_COMPLETE) \
162 item(TE_STMF_OFFLINE_COMPLETE_ACK) \
163 item(TE_DELETE) \
164 item(TE_STMF_DEREG_SUCCESS) \
165 item(TE_STMF_DEREG_FAIL) \
166 item(TE_STMF_DEREG_RETRY) \
167 item(TE_WAIT_REF_COMPLETE) \
168 item(TE_MAX_EVENT)
169
170 typedef enum {
171 #define item(a) a,
172 TGT_EVENT_LIST()
173 #undef item
174 } iscsit_tgt_event_t;
175
176 #ifdef ISCSIT_TGT_SM_STRINGS
177 static const char *iscsit_te_name[TE_MAX_EVENT + 1] = {
178 #define item(a) #a,
179 TGT_EVENT_LIST()
180 #undef item
181 };
182 #endif
183
184 typedef struct {
185 char *target_name;
186 nvlist_t *target_props;
187 kmutex_t target_mutex;
188 idm_refcnt_t target_refcnt;
189 idm_refcnt_t target_sess_refcnt;
190 avl_tree_t target_tpgt_list;
191 avl_tree_t target_sess_list;
192 avl_node_t target_global_ln;
193 avl_node_t target_global_deleted_ln;
194 /* STMF lport == iSCSI target */
195 scsi_devid_desc_t *target_devid;
196 stmf_local_port_t *target_stmf_lport;
197 uint8_t target_stmf_lport_registered;
198
199 /* Target state */
200 boolean_t target_sm_busy;
201 boolean_t target_deleting;
202 iscsit_tgt_state_t target_state;
203 iscsit_tgt_state_t target_last_state;
204 sm_audit_buf_t target_state_audit;
205 list_t target_events;
206 uint64_t target_generation;
207 } iscsit_tgt_t;
208
209 typedef struct {
210 char ini_name[MAX_ISCSI_NODENAMELEN];
211 nvlist_t *ini_props;
212 avl_node_t ini_global_ln;
213 } iscsit_ini_t;
214
215 /*
216 * iSCSI Auth Information
217 */
218 typedef struct conn_auth {
219 char ca_tgt_chapuser[iscsitAuthStringMaxLength];
220 uint8_t ca_tgt_chapsecret[iscsitAuthStringMaxLength];
221 int ca_tgt_chapsecretlen;
222
223 char ca_ini_chapuser[iscsitAuthStringMaxLength];
224 uint8_t ca_ini_chapsecret[iscsitAuthStringMaxLength];
225 int ca_ini_chapsecretlen;
226
227 /* RADIUS authentication information */
228 boolean_t ca_use_radius;
229 struct sockaddr_storage ca_radius_server;
230 uint8_t ca_radius_secret[iscsitAuthStringMaxLength];
231 int ca_radius_secretlen;
232
233 /* authentication method list */
234 iscsit_auth_method_t ca_method_valid_list[iscsitAuthMethodMaxCount];
235
236 /* Target alias */
237 char ca_tgt_alias[MAX_ISCSI_NODENAMELEN];
238 } conn_auth_t;
239
240 /*
241 * We have three state machines (so far) between the IDM connection state
242 * machine, the session state machine, and the login state machine. All
243 * of these states have some concept of "full feature mode". It's going
244 * to be obnoxious if we use a mixture of these "ffp" representations
245 * since it will be difficult to ensure the three state machines
246 * transition at exactly the same time. We should drive decisions that
247 * depend on FFP from the IDM state machine which is actually snooping
248 * the iSCSI PDU's and will always transition at the correct time.
249 *
250 * A consequence of this approach is that there is a window just after
251 * login completes where we may get a SCSI request but the session
252 * or login state machine has not quite transitioned to "FFP". Whether
253 * this is a problem depends on how we use those state machines. This
254 * is what we should use them for:
255 *
256 * IDM Connection state machine - Decisions related to command processing
257 * including whether a connection is in FFP
258 *
259 * Session state machine - Summarize the state of all available connections
260 * for the purposes of ERL1, ERL2 and MC/S. A session in LOGGED_IN state
261 * should always have at least one FFP connection but there may be a brief
262 * window where a session in ACTIVE might have one or more FFP connections
263 * even though ACTIVE is not strictly an FFP state according to the RFC.
264 *
265 * Login state machine -- drive the login process, collect negotiated
266 * parameters. Another side effect of this approach is that we may get
267 * the "notify ffp" callback from the IDM connection state machine before
268 * the login state machine has actually transitioned to FFP state.
269 */
270
271 struct iscsit_conn_s;
272
273 /* Add new session states above SS_MAX_STATE */
274 #define SESSION_STATE_LIST() \
275 item(SS_UNDEFINED) \
276 item(SS_Q1_FREE) \
277 item(SS_Q2_ACTIVE) \
278 item(SS_Q3_LOGGED_IN) \
279 item(SS_Q4_FAILED) \
280 item(SS_Q5_CONTINUE) \
281 item(SS_Q6_DONE) \
282 item(SS_Q7_ERROR) \
283 item(SS_MAX_STATE)
284
285 /* Update iscsit_ss_name table whenever session states are modified */
286 typedef enum {
287 #define item(a) a,
288 SESSION_STATE_LIST()
289 #undef item
290 } iscsit_session_state_t;
291
292 #ifdef ISCSIT_SESS_SM_STRINGS
293 /* An array of state text values, for use in logging state transitions */
294 static const char *iscsit_ss_name[SS_MAX_STATE + 1] = {
295 #define item(a) #a,
296 SESSION_STATE_LIST()
297 #undef item
298 };
299 #endif
300
301 /* Add new events above SE_MAX_EVENT */
302 #define SESSION_EVENT_LIST() \
303 item(SE_UNDEFINED) \
304 item(SE_CONN_IN_LOGIN) /* From login state machine */ \
305 item(SE_CONN_LOGGED_IN) /* FFP enabled client notification */ \
306 item(SE_CONN_FFP_FAIL) /* FFP disabled client notification */ \
307 item(SE_CONN_FFP_DISABLE) /* FFP disabled client notification */ \
308 item(SE_CONN_FAIL) /* Conn destroy client notification */ \
309 item(SE_SESSION_CLOSE) /* FFP disabled client notification */ \
310 item(SE_SESSION_REINSTATE) /* From login state machine */ \
311 item(SE_SESSION_TIMEOUT) /* Internal */ \
312 item(SE_SESSION_CONTINUE) /* From login state machine */ \
313 item(SE_SESSION_CONTINUE_FAIL) /* From login state machine? */ \
314 item(SE_MAX_EVENT)
315
316 /* Update iscsit_se_name table whenever session events are modified */
317 typedef enum {
318 #define item(a) a,
319 SESSION_EVENT_LIST()
320 #undef item
321 } iscsit_session_event_t;
322
323 #ifdef ISCSIT_SESS_SM_STRINGS
324 /* An array of event text values, for use in logging events */
325 static const char *iscsit_se_name[SE_MAX_EVENT + 1] = {
326 #define item(a) #a,
327 SESSION_EVENT_LIST()
328 #undef item
329 };
330 #endif
331
332 /*
333 * Set in ist_tgt after iscsit_tgt_unbind_sess to differentiate an unbound
334 * session from a discovery session.
335 */
336 #define SESS_UNBOUND_FROM_TGT -1
337
338 typedef struct {
339 stmf_scsi_session_t *ist_stmf_sess;
340 stmf_local_port_t *ist_lport;
341 iscsit_tgt_t *ist_tgt;
342 idm_refcnt_t ist_refcnt;
343 kmem_cache_t *ist_task_cache;
344 kmutex_t ist_sn_mutex;
345 kmutex_t ist_mutex;
346 kcondvar_t ist_cv;
347 iscsit_session_state_t ist_state;
348 iscsit_session_state_t ist_last_state;
349 sm_audit_buf_t ist_state_audit;
350 boolean_t ist_sm_busy;
351 boolean_t ist_sm_complete;
352 boolean_t ist_admin_close;
353 list_t ist_events;
354 int ist_conn_count;
355 int ist_ffp_conn_count;
356 struct iscsit_conn_s *ist_failed_conn;
357 timeout_id_t ist_state_timeout;
358 list_t ist_conn_list;
359 avl_node_t ist_tgt_ln;
360 char *ist_initiator_name;
361 char *ist_initiator_alias;
362 char *ist_target_name;
363 char *ist_target_alias;
364 uint8_t ist_isid[ISCSI_ISID_LEN];
365 uint16_t ist_tsih;
366 uint16_t ist_tpgt_tag;
367 uint32_t ist_expcmdsn;
368 uint32_t ist_maxcmdsn;
369 avl_tree_t ist_task_list;
370 iscsit_cbuf_t *ist_rxpdu_queue;
371 } iscsit_sess_t;
372
373 /* Add new login states above ILS_MAX_STATE */
374 #define LOGIN_STATE_LIST() \
375 item(ILS_UNDEFINED) \
376 item(ILS_LOGIN_INIT) \
377 item(ILS_LOGIN_WAITING) /* Waiting for more login PDU's */ \
378 item(ILS_LOGIN_PROCESSING) /* Processing login request */ \
379 item(ILS_LOGIN_RESPONDING) /* Sending login response */ \
380 item(ILS_LOGIN_RESPONDED) /* Sent login response (no trans. to FFP) */ \
381 item(ILS_LOGIN_FFP) /* Sending last login PDU for final response */ \
382 item(ILS_LOGIN_DONE) /* Last login PDU sent (so we can free it) */ \
383 item(ILS_LOGIN_ERROR) /* Login error, login failed */ \
384 item(ILS_MAX_STATE)
385
386 /* Update iscsit_ils_name table whenever login states are modified */
387 typedef enum {
388 #define item(a) a,
389 LOGIN_STATE_LIST()
390 #undef item
391 } iscsit_login_state_t;
392
393 #ifdef ISCSIT_LOGIN_SM_STRINGS
394 /* An array of login state text values, for use in logging login progess */
395 static const char *iscsit_ils_name[ILS_MAX_STATE + 1] = {
396 #define item(a) #a,
397 LOGIN_STATE_LIST()
398 #undef item
399 };
400 #endif
401
402 /* Add new login events above ILE_MAX_EVENT */
403 #define LOGIN_EVENT_LIST() \
404 item(ILE_UNDEFINED) \
405 item(ILE_LOGIN_RCV) \
406 item(ILE_LOGIN_RESP_READY) \
407 item(ILE_LOGIN_FFP) \
408 item(ILE_LOGIN_RESP_COMPLETE) \
409 item(ILE_LOGIN_ERROR) \
410 item(ILE_LOGIN_CONN_ERROR) \
411 item(ILE_MAX_EVENT)
412
413 /* Update iscsit_ile_name table whenever login events are modified */
414 typedef enum {
415 #define item(a) a,
416 LOGIN_EVENT_LIST()
417 #undef item
418 } iscsit_login_event_t;
419
420 #ifdef ISCSIT_LOGIN_SM_STRINGS
421 /* An array of login event text values, for use in loggin login events */
422 static const char *iscsit_ile_name[ILE_MAX_EVENT + 1] = {
423 #define item(a) #a,
424 LOGIN_EVENT_LIST()
425 #undef item
426 };
427 #endif
428
429 typedef struct {
430 uint32_t op_initial_params_set:1,
431 op_discovery_session:1,
432 op_initial_r2t:1,
433 op_immed_data:1,
434 op_data_pdu_in_order:1,
435 op_data_sequence_in_order:1,
436 op_declarative_params_set:1;
437 uint64_t op_max_connections;
438 uint64_t op_max_recv_data_segment_length;
439 uint64_t op_max_burst_length;
440 uint64_t op_first_burst_length;
441 uint64_t op_default_time_2_wait;
442 uint64_t op_default_time_2_retain;
443 uint64_t op_max_outstanding_r2t;
444 uint64_t op_error_recovery_level;
445 } iscsit_op_params_t;
446
447 typedef struct {
448 iscsit_login_state_t icl_login_state;
449 iscsit_login_state_t icl_login_last_state;
450 sm_audit_buf_t icl_state_audit;
451 boolean_t icl_busy;
452 boolean_t icl_login_complete;
453 kmutex_t icl_mutex;
454 uint32_t icl_login_itt;
455 uint8_t icl_login_csg;
456 uint8_t icl_login_nsg;
457 boolean_t icl_login_transit;
458 conn_auth_t icl_auth;
459 iscsit_auth_client_t icl_auth_client;
460 int icl_auth_pass;
461 list_t icl_login_events;
462 list_t icl_pdu_list;
463 uint16_t icl_tsih;
464 uint8_t icl_isid[ISCSI_ISID_LEN];
465 uint32_t icl_cmdsn;
466 uint16_t icl_tpgt_tag;
467 char *icl_target_name;
468 char *icl_target_alias;
469 char *icl_initiator_name;
470 char *icl_login_resp_buf;
471 void *icl_login_resp_itb; /* mult-pdu idm buf */
472 int icl_login_resp_len; /* For kmem_free */
473 int icl_login_resp_valid_len;
474 uint8_t icl_login_resp_err_class;
475 uint8_t icl_login_resp_err_detail;
476 iscsi_login_rsp_hdr_t *icl_login_resp_tmpl;
477 nvlist_t *icl_request_nvlist;
478 nvlist_t *icl_response_nvlist;
479 nvlist_t *icl_negotiated_values;
480 } iscsit_conn_login_t;
481
482 #define SET_LOGIN_ERROR(SLE_ICT, SLE_CLASS, SLE_DETAIL) \
483 (SLE_ICT)->ict_login_sm.icl_login_resp_err_class = (SLE_CLASS); \
484 (SLE_ICT)->ict_login_sm.icl_login_resp_err_detail = (SLE_DETAIL);
485
486 typedef struct iscsit_conn_s {
487 idm_conn_t *ict_ic;
488 iscsit_sess_t *ict_sess;
489 kmutex_t ict_mutex;
490 idm_refcnt_t ict_refcnt;
491 idm_refcnt_t ict_dispatch_refcnt;
492 list_node_t ict_sess_ln;
493 iscsit_conn_login_t ict_login_sm;
494 iscsit_op_params_t ict_op;
495 uint16_t ict_cid;
496 uint32_t ict_statsn;
497 kmutex_t ict_statsn_mutex;
498 uint32_t ict_keepalive_ttt;
499 struct iscsit_conn_s *ict_reinstate_conn;
500 uint32_t ict_reinstating:1,
501 ict_lost:1,
502 ict_destroyed:1;
503 /*
504 * Parameters for processing text commands
505 */
506 char *ict_text_rsp_buf;
507 uint32_t ict_text_rsp_len;
508 uint32_t ict_text_rsp_valid_len;
509 uint32_t ict_text_rsp_off;
510 uint32_t ict_text_req_itt; /* from initiator */
511 uint32_t ict_text_rsp_ttt;
512 } iscsit_conn_t;
513
514 #define ICT_FLAGS_DISCOVERY 0x00000001
515
516 typedef struct {
517 idm_buf_t *ibuf_idm_buf;
518 stmf_data_buf_t *ibuf_stmf_buf;
519 idm_pdu_t *ibuf_immed_data_pdu;
520 boolean_t ibuf_is_immed;
521 } iscsit_buf_t;
522
523 typedef struct {
524 scsi_task_t *it_stmf_task;
525 idm_task_t *it_idm_task;
526 iscsit_buf_t *it_immed_data;
527 iscsit_conn_t *it_ict;
528 kmutex_t it_mutex;
529 idm_pdu_t *it_tm_pdu;
530 uint32_t it_stmf_abort:1,
531 it_aborted:1,
532 it_active:1,
533 it_tm_task:1,
534 it_tm_responded:1;
535 uint32_t it_cmdsn;
536 uint32_t it_itt;
537 uint32_t it_ttt;
538 avl_node_t it_sess_ln;
539 } iscsit_task_t;
540
541 typedef struct iscsit_isns_cfg {
542 kmutex_t isns_mutex;
543 boolean_t isns_state;
544 list_t isns_svrs;
545 } iscsit_isns_cfg_t;
546
547 #define SERVICE_ENABLED_LIST() \
548 item(ISE_UNDEFINED) \
549 item(ISE_DETACHED) \
550 item(ISE_DISABLED) \
551 item(ISE_ENABLING) \
552 item(ISE_ENABLED) \
553 item(ISE_BUSY) \
554 item(ISE_DISABLING)
555
556 /*
557 * State values for the iscsit service
558 */
559 typedef enum {
560 #define item(a) a,
561 SERVICE_ENABLED_LIST()
562 #undef item
563 } iscsit_service_enabled_t;
564
565
566 typedef struct {
567 iscsit_service_enabled_t global_svc_state;
568 dev_info_t *global_dip;
569 ldi_ident_t global_li;
570 nvlist_t *global_props;
571 stmf_port_provider_t *global_pp;
572 stmf_dbuf_store_t *global_dbuf_store;
573 taskq_t *global_dispatch_taskq;
574 idm_refcnt_t global_refcnt;
575 avl_tree_t global_discovery_sessions;
576 avl_tree_t global_target_list;
577 list_t global_deleted_target_list;
578 avl_tree_t global_tpg_list;
579 avl_tree_t global_ini_list;
580 iscsit_tpg_t *global_default_tpg;
581 vmem_t *global_tsih_pool;
582 iscsit_isns_cfg_t global_isns_cfg;
583 iscsi_radius_props_t global_radius_server;
584 krwlock_t global_rwlock;
585 kmutex_t global_state_mutex;
586 } iscsit_global_t;
587
588 extern iscsit_global_t iscsit_global;
589
590 void
591 iscsit_global_hold();
592
593 void
594 iscsit_global_rele();
595
596 void
597 iscsit_global_wait_ref();
598
599 idm_status_t
600 iscsit_login_sm_init(iscsit_conn_t *ict);
601
602 void
603 iscsit_login_sm_fini(iscsit_conn_t *ict);
604
605 void
606 iscsit_login_sm_event(iscsit_conn_t *ic, iscsit_login_event_t event,
607 idm_pdu_t *pdu);
608
609 void
610 iscsit_login_sm_event_locked(iscsit_conn_t *ic, iscsit_login_event_t event,
611 idm_pdu_t *pdu);
612
613 int
614 iscsit_is_v4_mapped(struct sockaddr_storage *sa, struct sockaddr_storage *v4sa);
615
616 void
617 iscsit_send_async_event(iscsit_conn_t *ict, uint8_t async_event);
618
619 void
620 iscsit_pdu_tx(idm_pdu_t *pdu);
621
622 void
623 iscsit_send_reject(iscsit_conn_t *ict, idm_pdu_t *rejected_pdu, uint8_t reason);
624
625 void
626 iscsit_text_cmd_fini(iscsit_conn_t *ict);
627
628 /*
629 * IDM conn ops
630 */
631
632 idm_rx_pdu_cb_t iscsit_op_scsi_cmd;
633 idm_rx_pdu_cb_t iscsit_rx_pdu;
634 idm_rx_pdu_error_cb_t iscsit_rx_pdu_error;
635 idm_rx_pdu_cb_t iscsit_rx_scsi_rsp;
636 idm_task_cb_t iscsit_task_aborted;
637 idm_client_notify_cb_t iscsit_client_notify;
638 idm_build_hdr_cb_t iscsit_build_hdr;
639 idm_update_statsn_cb_t iscsit_update_statsn;
640 idm_keepalive_cb_t iscsit_keepalive;
641
642 /*
643 * lport entry points
644 */
645 stmf_status_t
646 iscsit_xfer_scsi_data(scsi_task_t *task, stmf_data_buf_t *dbuf,
647 uint32_t ioflags);
648
649 stmf_status_t
650 iscsit_send_scsi_status(scsi_task_t *task, uint32_t ioflags);
651
652 void
653 iscsit_lport_task_free(scsi_task_t *task);
654
655 stmf_status_t
656 iscsit_abort(stmf_local_port_t *lport, int abort_cmd, void *arg,
657 uint32_t flags);
658
659 void
660 iscsit_ctl(stmf_local_port_t *lport, int cmd, void *arg);
661
662 /*
663 * Connection functions
664 */
665 idm_status_t
666 iscsit_conn_reinstate(iscsit_conn_t *existing_ict, iscsit_conn_t *ict);
667
668 void
669 iscsit_conn_set_auth(iscsit_conn_t *ict);
670
671 void
672 iscsit_conn_hold(iscsit_conn_t *ict);
673
674 void
675 iscsit_conn_rele(iscsit_conn_t *ict);
676
677 void
678 iscsit_conn_logout(iscsit_conn_t *ict);
679
680 /*
681 * Session functions
682 */
683 int
684 iscsit_sess_avl_compare(const void *void_sess1, const void *void_sess2);
685
686 iscsit_sess_t *
687 iscsit_sess_create(iscsit_tgt_t *tgt, iscsit_conn_t *ict,
688 uint32_t cmdsn, uint8_t *isid, uint16_t tag,
689 char *initiator_name, char *target_name,
690 uint8_t *error_class, uint8_t *error_detail);
691
692 void
693 iscsit_sess_destroy(iscsit_sess_t *ist);
694
695 void
696 iscsit_sess_hold(iscsit_sess_t *ist);
697
698 idm_status_t
699 iscsit_sess_check_hold(iscsit_sess_t *ist);
700
701 void
702 iscsit_sess_rele(iscsit_sess_t *ist);
703
704 iscsit_conn_t *
705 iscsit_sess_lookup_conn(iscsit_sess_t *ist, uint16_t cid);
706
707 void
708 iscsit_sess_bind_conn(iscsit_sess_t *ist, iscsit_conn_t *ict);
709
710 void
711 iscsit_sess_unbind_conn(iscsit_sess_t *ist, iscsit_conn_t *ict);
712
713 void
714 iscsit_sess_close(iscsit_sess_t *ist);
715
716 iscsit_sess_t *
717 iscsit_sess_reinstate(iscsit_tgt_t *tgt, iscsit_sess_t *ist, iscsit_conn_t *ict,
718 uint8_t *error_class, uint8_t *error_detail);
719
720 void
721 iscsit_sess_sm_event(iscsit_sess_t *ist, iscsit_session_event_t event,
722 iscsit_conn_t *ict);
723
724 /*
725 * Target, TPGT, TPGT and portal functions
726 */
727
728 void
729 iscsit_tgt_sm_event(iscsit_tgt_t *tgt, iscsit_tgt_event_t event);
730
731 void
732 tgt_sm_event_locked(iscsit_tgt_t *tgt, iscsit_tgt_event_t event);
733
734 it_cfg_status_t
735 iscsit_config_merge_tgt(it_config_t *cfg);
736
737 void
738 iscsit_config_destroy_tgts(list_t *tgt_del_list);
739
740 void
741 iscsit_config_destroy_tpgts(list_t *tpgt_del_list);
742
743 iscsit_tgt_t *
744 iscsit_tgt_lookup(char *target_name);
745
746 iscsit_tgt_t *
747 iscsit_tgt_lookup_locked(char *target_name);
748
749 int
750 iscsit_tgt_avl_compare(const void *void_tgt1, const void *void_tgt2);
751
752 int
753 iscsit_tpgt_avl_compare(const void *void_tpgt1, const void *void_tpgt2);
754
755 void
756 iscsit_tgt_hold(iscsit_tgt_t *tgt);
757
758 void
759 iscsit_tgt_rele(iscsit_tgt_t *tgt);
760
761 iscsit_tpgt_t *
762 iscsit_tgt_lookup_tpgt(iscsit_tgt_t *tgt, uint16_t tag);
763
764 void
765 iscsit_tpgt_hold(iscsit_tpgt_t *tpgt);
766
767 void
768 iscsit_tpgt_rele(iscsit_tpgt_t *tpgt);
769
770 iscsit_portal_t *
771 iscsit_tgt_lookup_portal(iscsit_tgt_t *tgt, struct sockaddr_storage *sa,
772 iscsit_tpgt_t **output_tpgt);
773
774 iscsit_sess_t *
775 iscsit_tgt_lookup_sess(iscsit_tgt_t *tgt, char *initiator_name,
776 uint8_t *isid, uint16_t tsih, uint16_t tag);
777
778 void
779 iscsit_tgt_bind_sess(iscsit_tgt_t *tgt, iscsit_sess_t *sess);
780
781 void
782 iscsit_tgt_unbind_sess(iscsit_tgt_t *tgt, iscsit_sess_t *sess);
783
784 it_cfg_status_t
785 iscsit_config_merge_tpg(it_config_t *cfg, list_t *tpg_del_list);
786
787 void
788 iscsit_config_destroy_tpgs(list_t *tpg_del_list);
789
790 iscsit_tpg_t *
791 iscsit_tpg_lookup(char *tpg_name);
792
793 int
794 iscsit_tpg_avl_compare(const void *void_tpg1, const void *void_tpg2);
795
796 void
797 iscsit_tpg_hold(iscsit_tpg_t *tpg);
798
799 void
800 iscsit_tpg_rele(iscsit_tpg_t *tpg);
801
802 iscsit_tpg_t *
803 iscsit_tpg_createdefault();
804
805 void
806 iscsit_tpg_destroydefault(iscsit_tpg_t *tpg);
807
808 idm_status_t
809 iscsit_tpg_online(iscsit_tpg_t *tpg);
810
811 void
812 iscsit_tpg_offline(iscsit_tpg_t *tpg);
813
814 iscsit_portal_t *
815 iscsit_tpg_portal_lookup(iscsit_tpg_t *tpg, struct sockaddr_storage *sa);
816
817 void
818 iscsit_portal_hold(iscsit_portal_t *portal);
819
820 void
821 iscsit_portal_rele(iscsit_portal_t *portal);
822
823 it_cfg_status_t
824 iscsit_config_merge_ini(it_config_t *cfg);
825
826 int
827 iscsit_ini_avl_compare(const void *void_ini1, const void *void_ini2);
828
829 iscsit_ini_t *
830 iscsit_ini_lookup_locked(char *ini_name);
831
832 int
833 iscsit_portal_avl_compare(const void *void_portal1, const void *void_portal2);
834
835 int
836 iscsit_verify_chap_resp(iscsit_conn_login_t *lsm,
837 unsigned int chap_i, uchar_t *chap_c, unsigned int challenge_len,
838 uchar_t *chap_r, unsigned int resp_len);
839
840 void
841 iscsit_rxpdu_queue_monitor_start(void);
842
843 void
844 iscsit_rxpdu_queue_monitor_stop(void);
845
846 #endif /* _ISCSIT_H_ */