2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2012 The FreeBSD Foundation
7 * This software was developed by Edward Tomasz Napierala under sponsorship
8 * from the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/queue.h>
38 #ifdef ICL_KERNEL_PROXY
39 #include <sys/types.h>
41 #include <sys/socket.h>
45 #define DEFAULT_CONFIG_PATH "/etc/ctl.conf"
46 #define DEFAULT_PIDFILE "/var/run/ctld.pid"
47 #define DEFAULT_BLOCKSIZE 512
48 #define DEFAULT_CD_BLOCKSIZE 2048
51 #define MAX_NAME_LEN 223
52 #define MAX_DATA_SEGMENT_LENGTH (128 * 1024)
53 #define SOCKBUF_SIZE 1048576
56 TAILQ_ENTRY(auth) a_next;
57 struct auth_group *a_auth_group;
61 char *a_mutual_secret;
65 TAILQ_ENTRY(auth_name) an_next;
66 struct auth_group *an_auth_group;
67 char *an_initator_name;
71 TAILQ_ENTRY(auth_portal) ap_next;
72 struct auth_group *ap_auth_group;
73 char *ap_initator_portal;
74 struct sockaddr_storage ap_sa;
78 #define AG_TYPE_UNKNOWN 0
79 #define AG_TYPE_DENY 1
80 #define AG_TYPE_NO_AUTHENTICATION 2
81 #define AG_TYPE_CHAP 3
82 #define AG_TYPE_CHAP_MUTUAL 4
85 TAILQ_ENTRY(auth_group) ag_next;
88 struct target *ag_target;
90 TAILQ_HEAD(, auth) ag_auths;
91 TAILQ_HEAD(, auth_name) ag_names;
92 TAILQ_HEAD(, auth_portal) ag_portals;
96 TAILQ_ENTRY(portal) p_next;
97 struct portal_group *p_portal_group;
100 struct addrinfo *p_ai;
101 #ifdef ICL_KERNEL_PROXY
105 TAILQ_HEAD(, target) p_targets;
109 TAILQ_HEAD(options, option);
111 #define PG_FILTER_UNKNOWN 0
112 #define PG_FILTER_NONE 1
113 #define PG_FILTER_PORTAL 2
114 #define PG_FILTER_PORTAL_NAME 3
115 #define PG_FILTER_PORTAL_NAME_AUTH 4
117 struct portal_group {
118 TAILQ_ENTRY(portal_group) pg_next;
119 struct conf *pg_conf;
120 struct options pg_options;
122 struct auth_group *pg_discovery_auth_group;
123 int pg_discovery_filter;
126 TAILQ_HEAD(, portal) pg_portals;
127 TAILQ_HEAD(, port) pg_ports;
129 char *pg_redirection;
135 TAILQ_ENTRY(pport) pp_next;
136 TAILQ_HEAD(, port) pp_ports;
137 struct conf *pp_conf;
140 uint32_t pp_ctl_port;
144 TAILQ_ENTRY(port) p_next;
145 TAILQ_ENTRY(port) p_pgs;
146 TAILQ_ENTRY(port) p_pps;
147 TAILQ_ENTRY(port) p_ts;
150 struct auth_group *p_auth_group;
151 struct portal_group *p_portal_group;
152 struct pport *p_pport;
153 struct target *p_target;
162 TAILQ_ENTRY(option) o_next;
168 TAILQ_ENTRY(lun) l_next;
170 struct options l_options;
173 uint8_t l_device_type;
185 TAILQ_ENTRY(target) t_next;
187 struct lun *t_luns[MAX_LUNS];
188 struct auth_group *t_auth_group;
189 TAILQ_HEAD(, port) t_ports;
196 TAILQ_ENTRY(isns) i_next;
199 struct addrinfo *i_ai;
203 char *conf_pidfile_path;
204 TAILQ_HEAD(, lun) conf_luns;
205 TAILQ_HEAD(, target) conf_targets;
206 TAILQ_HEAD(, auth_group) conf_auth_groups;
207 TAILQ_HEAD(, port) conf_ports;
208 TAILQ_HEAD(, portal_group) conf_portal_groups;
209 TAILQ_HEAD(, pport) conf_pports;
210 TAILQ_HEAD(, isns) conf_isns;
211 int conf_isns_period;
212 int conf_isns_timeout;
217 #ifdef ICL_KERNEL_PROXY
220 struct pidfh *conf_pidfh;
222 bool conf_default_pg_defined;
223 bool conf_default_ag_defined;
224 bool conf_kernel_port_on;
227 #define CONN_SESSION_TYPE_NONE 0
228 #define CONN_SESSION_TYPE_DISCOVERY 1
229 #define CONN_SESSION_TYPE_NORMAL 2
231 #define CONN_DIGEST_NONE 0
232 #define CONN_DIGEST_CRC32C 1
235 struct portal *conn_portal;
236 struct port *conn_port;
237 struct target *conn_target;
239 int conn_session_type;
240 char *conn_initiator_name;
241 char *conn_initiator_addr;
242 char *conn_initiator_alias;
243 uint8_t conn_initiator_isid[6];
244 struct sockaddr_storage conn_initiator_sa;
246 uint32_t conn_statsn;
247 int conn_max_recv_data_segment_limit;
248 int conn_max_send_data_segment_limit;
249 int conn_max_burst_limit;
250 int conn_first_burst_limit;
251 int conn_max_recv_data_segment_length;
252 int conn_max_send_data_segment_length;
253 int conn_max_burst_length;
254 int conn_first_burst_length;
255 int conn_immediate_data;
256 int conn_header_digest;
257 int conn_data_digest;
258 const char *conn_user;
259 struct chap *conn_chap;
263 struct connection *pdu_connection;
264 struct iscsi_bhs *pdu_bhs;
269 #define KEYS_MAX 1024
272 char *keys_names[KEYS_MAX];
273 char *keys_values[KEYS_MAX];
275 size_t keys_data_len;
278 #define CHAP_CHALLENGE_LEN 1024
279 #define CHAP_DIGEST_LEN 16 /* Equal to MD5 digest size. */
282 unsigned char chap_id;
283 char chap_challenge[CHAP_CHALLENGE_LEN];
284 char chap_response[CHAP_DIGEST_LEN];
289 unsigned char rchap_id;
290 void *rchap_challenge;
291 size_t rchap_challenge_len;
294 struct chap *chap_new(void);
295 char *chap_get_id(const struct chap *chap);
296 char *chap_get_challenge(const struct chap *chap);
297 int chap_receive(struct chap *chap, const char *response);
298 int chap_authenticate(struct chap *chap,
300 void chap_delete(struct chap *chap);
302 struct rchap *rchap_new(const char *secret);
303 int rchap_receive(struct rchap *rchap,
304 const char *id, const char *challenge);
305 char *rchap_get_response(struct rchap *rchap);
306 void rchap_delete(struct rchap *rchap);
308 int parse_conf(struct conf *conf, const char *path);
309 int uclparse_conf(struct conf *conf, const char *path);
311 struct conf *conf_new(void);
312 struct conf *conf_new_from_kernel(void);
313 void conf_delete(struct conf *conf);
314 int conf_verify(struct conf *conf);
316 struct auth_group *auth_group_new(struct conf *conf, const char *name);
317 void auth_group_delete(struct auth_group *ag);
318 struct auth_group *auth_group_find(const struct conf *conf,
320 int auth_group_set_type(struct auth_group *ag,
323 const struct auth *auth_new_chap(struct auth_group *ag,
324 const char *user, const char *secret);
325 const struct auth *auth_new_chap_mutual(struct auth_group *ag,
326 const char *user, const char *secret,
327 const char *user2, const char *secret2);
328 const struct auth *auth_find(const struct auth_group *ag,
331 const struct auth_name *auth_name_new(struct auth_group *ag,
332 const char *initiator_name);
333 bool auth_name_defined(const struct auth_group *ag);
334 const struct auth_name *auth_name_find(const struct auth_group *ag,
335 const char *initiator_name);
336 int auth_name_check(const struct auth_group *ag,
337 const char *initiator_name);
339 const struct auth_portal *auth_portal_new(struct auth_group *ag,
340 const char *initiator_portal);
341 bool auth_portal_defined(const struct auth_group *ag);
342 const struct auth_portal *auth_portal_find(const struct auth_group *ag,
343 const struct sockaddr_storage *sa);
344 int auth_portal_check(const struct auth_group *ag,
345 const struct sockaddr_storage *sa);
347 struct portal_group *portal_group_new(struct conf *conf, const char *name);
348 void portal_group_delete(struct portal_group *pg);
349 struct portal_group *portal_group_find(const struct conf *conf,
351 int portal_group_add_listen(struct portal_group *pg,
352 const char *listen, bool iser);
353 int portal_group_set_filter(struct portal_group *pg,
355 int portal_group_set_offload(struct portal_group *pg,
356 const char *offload);
357 int portal_group_set_redirection(struct portal_group *pg,
360 int isns_new(struct conf *conf, const char *addr);
361 void isns_delete(struct isns *is);
362 void isns_register(struct isns *isns, struct isns *oldisns);
363 void isns_check(struct isns *isns);
364 void isns_deregister(struct isns *isns);
366 struct pport *pport_new(struct conf *conf, const char *name,
368 struct pport *pport_find(const struct conf *conf, const char *name);
369 struct pport *pport_copy(struct pport *pport, struct conf *conf);
370 void pport_delete(struct pport *pport);
372 struct port *port_new(struct conf *conf, struct target *target,
373 struct portal_group *pg);
374 struct port *port_new_ioctl(struct conf *conf, struct target *target,
376 struct port *port_new_pp(struct conf *conf, struct target *target,
378 struct port *port_find(const struct conf *conf, const char *name);
379 struct port *port_find_in_pg(const struct portal_group *pg,
381 void port_delete(struct port *port);
382 int port_is_dummy(struct port *port);
384 struct target *target_new(struct conf *conf, const char *name);
385 void target_delete(struct target *target);
386 struct target *target_find(struct conf *conf,
388 int target_set_redirection(struct target *target,
391 struct lun *lun_new(struct conf *conf, const char *name);
392 void lun_delete(struct lun *lun);
393 struct lun *lun_find(const struct conf *conf, const char *name);
394 void lun_set_backend(struct lun *lun, const char *value);
395 void lun_set_device_type(struct lun *lun, uint8_t value);
396 void lun_set_blocksize(struct lun *lun, size_t value);
397 void lun_set_device_id(struct lun *lun, const char *value);
398 void lun_set_path(struct lun *lun, const char *value);
399 void lun_set_scsiname(struct lun *lun, const char *value);
400 void lun_set_serial(struct lun *lun, const char *value);
401 void lun_set_size(struct lun *lun, size_t value);
402 void lun_set_ctl_lun(struct lun *lun, uint32_t value);
404 struct option *option_new(struct options *os,
405 const char *name, const char *value);
406 void option_delete(struct options *os, struct option *co);
407 struct option *option_find(const struct options *os, const char *name);
408 void option_set(struct option *o, const char *value);
410 void kernel_init(void);
411 int kernel_lun_add(struct lun *lun);
412 int kernel_lun_modify(struct lun *lun);
413 int kernel_lun_remove(struct lun *lun);
414 void kernel_handoff(struct connection *conn);
415 void kernel_limits(const char *offload,
416 int *max_recv_data_segment_length,
417 int *max_send_data_segment_length,
418 int *max_burst_length,
419 int *first_burst_length);
420 int kernel_port_add(struct port *port);
421 int kernel_port_update(struct port *port, struct port *old);
422 int kernel_port_remove(struct port *port);
423 void kernel_capsicate(void);
425 #ifdef ICL_KERNEL_PROXY
426 void kernel_listen(struct addrinfo *ai, bool iser,
428 void kernel_accept(int *connection_id, int *portal_id,
429 struct sockaddr *client_sa,
430 socklen_t *client_salen);
431 void kernel_send(struct pdu *pdu);
432 void kernel_receive(struct pdu *pdu);
435 struct keys *keys_new(void);
436 void keys_delete(struct keys *keys);
437 void keys_load(struct keys *keys, const struct pdu *pdu);
438 void keys_save(struct keys *keys, struct pdu *pdu);
439 const char *keys_find(struct keys *keys, const char *name);
440 void keys_add(struct keys *keys,
441 const char *name, const char *value);
442 void keys_add_int(struct keys *keys,
443 const char *name, int value);
445 struct pdu *pdu_new(struct connection *conn);
446 struct pdu *pdu_new_response(struct pdu *request);
447 void pdu_delete(struct pdu *pdu);
448 void pdu_receive(struct pdu *request);
449 void pdu_send(struct pdu *response);
451 void login(struct connection *conn);
453 void discovery(struct connection *conn);
455 void log_init(int level);
456 void log_set_peer_name(const char *name);
457 void log_set_peer_addr(const char *addr);
458 void log_err(int, const char *, ...)
459 __dead2 __printflike(2, 3);
460 void log_errx(int, const char *, ...)
461 __dead2 __printflike(2, 3);
462 void log_warn(const char *, ...) __printflike(1, 2);
463 void log_warnx(const char *, ...) __printflike(1, 2);
464 void log_debugx(const char *, ...) __printflike(1, 2);
466 char *checked_strdup(const char *);
467 bool valid_iscsi_name(const char *name);
468 void set_timeout(int timeout, int fatal);
469 bool timed_out(void);