2 * Copyright (c) 2012 The FreeBSD Foundation
5 * This software was developed by Edward Tomasz Napierala under sponsorship
6 * from the FreeBSD Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/queue.h>
36 #ifdef ICL_KERNEL_PROXY
37 #include <sys/types.h>
39 #include <sys/socket.h>
43 #define DEFAULT_CONFIG_PATH "/etc/ctl.conf"
44 #define DEFAULT_PIDFILE "/var/run/ctld.pid"
45 #define DEFAULT_BLOCKSIZE 512
46 #define DEFAULT_CD_BLOCKSIZE 2048
49 #define MAX_NAME_LEN 223
50 #define MAX_DATA_SEGMENT_LENGTH (128 * 1024)
51 #define MAX_BURST_LENGTH 16776192
52 #define SOCKBUF_SIZE 1048576
55 TAILQ_ENTRY(auth) a_next;
56 struct auth_group *a_auth_group;
60 char *a_mutual_secret;
64 TAILQ_ENTRY(auth_name) an_next;
65 struct auth_group *an_auth_group;
66 char *an_initator_name;
70 TAILQ_ENTRY(auth_portal) ap_next;
71 struct auth_group *ap_auth_group;
72 char *ap_initator_portal;
73 struct sockaddr_storage ap_sa;
77 #define AG_TYPE_UNKNOWN 0
78 #define AG_TYPE_DENY 1
79 #define AG_TYPE_NO_AUTHENTICATION 2
80 #define AG_TYPE_CHAP 3
81 #define AG_TYPE_CHAP_MUTUAL 4
84 TAILQ_ENTRY(auth_group) ag_next;
87 struct target *ag_target;
89 TAILQ_HEAD(, auth) ag_auths;
90 TAILQ_HEAD(, auth_name) ag_names;
91 TAILQ_HEAD(, auth_portal) ag_portals;
95 TAILQ_ENTRY(portal) p_next;
96 struct portal_group *p_portal_group;
99 struct addrinfo *p_ai;
100 #ifdef ICL_KERNEL_PROXY
104 TAILQ_HEAD(, target) p_targets;
108 TAILQ_HEAD(options, option);
110 #define PG_FILTER_UNKNOWN 0
111 #define PG_FILTER_NONE 1
112 #define PG_FILTER_PORTAL 2
113 #define PG_FILTER_PORTAL_NAME 3
114 #define PG_FILTER_PORTAL_NAME_AUTH 4
116 struct portal_group {
117 TAILQ_ENTRY(portal_group) pg_next;
118 struct conf *pg_conf;
119 struct options pg_options;
121 struct auth_group *pg_discovery_auth_group;
122 int pg_discovery_filter;
125 TAILQ_HEAD(, portal) pg_portals;
126 TAILQ_HEAD(, port) pg_ports;
128 char *pg_redirection;
134 TAILQ_ENTRY(pport) pp_next;
135 TAILQ_HEAD(, port) pp_ports;
136 struct conf *pp_conf;
139 uint32_t pp_ctl_port;
143 TAILQ_ENTRY(port) p_next;
144 TAILQ_ENTRY(port) p_pgs;
145 TAILQ_ENTRY(port) p_pps;
146 TAILQ_ENTRY(port) p_ts;
149 struct auth_group *p_auth_group;
150 struct portal_group *p_portal_group;
151 struct pport *p_pport;
152 struct target *p_target;
159 TAILQ_ENTRY(option) o_next;
165 TAILQ_ENTRY(lun) l_next;
167 struct options l_options;
170 uint8_t l_device_type;
182 TAILQ_ENTRY(target) t_next;
184 struct lun *t_luns[MAX_LUNS];
185 struct auth_group *t_auth_group;
186 TAILQ_HEAD(, port) t_ports;
193 TAILQ_ENTRY(isns) i_next;
196 struct addrinfo *i_ai;
200 char *conf_pidfile_path;
201 TAILQ_HEAD(, lun) conf_luns;
202 TAILQ_HEAD(, target) conf_targets;
203 TAILQ_HEAD(, auth_group) conf_auth_groups;
204 TAILQ_HEAD(, port) conf_ports;
205 TAILQ_HEAD(, portal_group) conf_portal_groups;
206 TAILQ_HEAD(, pport) conf_pports;
207 TAILQ_HEAD(, isns) conf_isns;
208 int conf_isns_period;
209 int conf_isns_timeout;
214 #ifdef ICL_KERNEL_PROXY
217 struct pidfh *conf_pidfh;
219 bool conf_default_pg_defined;
220 bool conf_default_ag_defined;
221 bool conf_kernel_port_on;
224 #define CONN_SESSION_TYPE_NONE 0
225 #define CONN_SESSION_TYPE_DISCOVERY 1
226 #define CONN_SESSION_TYPE_NORMAL 2
228 #define CONN_DIGEST_NONE 0
229 #define CONN_DIGEST_CRC32C 1
232 struct portal *conn_portal;
233 struct port *conn_port;
234 struct target *conn_target;
236 int conn_session_type;
237 char *conn_initiator_name;
238 char *conn_initiator_addr;
239 char *conn_initiator_alias;
240 uint8_t conn_initiator_isid[6];
241 struct sockaddr_storage conn_initiator_sa;
243 uint32_t conn_statsn;
244 size_t conn_data_segment_limit;
245 size_t conn_max_data_segment_length;
246 size_t conn_max_burst_length;
247 int conn_immediate_data;
248 int conn_header_digest;
249 int conn_data_digest;
250 const char *conn_user;
251 struct chap *conn_chap;
255 struct connection *pdu_connection;
256 struct iscsi_bhs *pdu_bhs;
261 #define KEYS_MAX 1024
264 char *keys_names[KEYS_MAX];
265 char *keys_values[KEYS_MAX];
267 size_t keys_data_len;
270 #define CHAP_CHALLENGE_LEN 1024
271 #define CHAP_DIGEST_LEN 16 /* Equal to MD5 digest size. */
274 unsigned char chap_id;
275 char chap_challenge[CHAP_CHALLENGE_LEN];
276 char chap_response[CHAP_DIGEST_LEN];
281 unsigned char rchap_id;
282 void *rchap_challenge;
283 size_t rchap_challenge_len;
286 struct chap *chap_new(void);
287 char *chap_get_id(const struct chap *chap);
288 char *chap_get_challenge(const struct chap *chap);
289 int chap_receive(struct chap *chap, const char *response);
290 int chap_authenticate(struct chap *chap,
292 void chap_delete(struct chap *chap);
294 struct rchap *rchap_new(const char *secret);
295 int rchap_receive(struct rchap *rchap,
296 const char *id, const char *challenge);
297 char *rchap_get_response(struct rchap *rchap);
298 void rchap_delete(struct rchap *rchap);
300 int parse_conf(struct conf *conf, const char *path);
301 int uclparse_conf(struct conf *conf, const char *path);
303 struct conf *conf_new(void);
304 struct conf *conf_new_from_kernel(void);
305 void conf_delete(struct conf *conf);
306 int conf_verify(struct conf *conf);
308 struct auth_group *auth_group_new(struct conf *conf, const char *name);
309 void auth_group_delete(struct auth_group *ag);
310 struct auth_group *auth_group_find(const struct conf *conf,
312 int auth_group_set_type(struct auth_group *ag,
315 const struct auth *auth_new_chap(struct auth_group *ag,
316 const char *user, const char *secret);
317 const struct auth *auth_new_chap_mutual(struct auth_group *ag,
318 const char *user, const char *secret,
319 const char *user2, const char *secret2);
320 const struct auth *auth_find(const struct auth_group *ag,
323 const struct auth_name *auth_name_new(struct auth_group *ag,
324 const char *initiator_name);
325 bool auth_name_defined(const struct auth_group *ag);
326 const struct auth_name *auth_name_find(const struct auth_group *ag,
327 const char *initiator_name);
328 int auth_name_check(const struct auth_group *ag,
329 const char *initiator_name);
331 const struct auth_portal *auth_portal_new(struct auth_group *ag,
332 const char *initiator_portal);
333 bool auth_portal_defined(const struct auth_group *ag);
334 const struct auth_portal *auth_portal_find(const struct auth_group *ag,
335 const struct sockaddr_storage *sa);
336 int auth_portal_check(const struct auth_group *ag,
337 const struct sockaddr_storage *sa);
339 struct portal_group *portal_group_new(struct conf *conf, const char *name);
340 void portal_group_delete(struct portal_group *pg);
341 struct portal_group *portal_group_find(const struct conf *conf,
343 int portal_group_add_listen(struct portal_group *pg,
344 const char *listen, bool iser);
345 int portal_group_set_filter(struct portal_group *pg,
347 int portal_group_set_offload(struct portal_group *pg,
348 const char *offload);
349 int portal_group_set_redirection(struct portal_group *pg,
352 int isns_new(struct conf *conf, const char *addr);
353 void isns_delete(struct isns *is);
354 void isns_register(struct isns *isns, struct isns *oldisns);
355 void isns_check(struct isns *isns);
356 void isns_deregister(struct isns *isns);
358 struct pport *pport_new(struct conf *conf, const char *name,
360 struct pport *pport_find(const struct conf *conf, const char *name);
361 struct pport *pport_copy(struct pport *pport, struct conf *conf);
362 void pport_delete(struct pport *pport);
364 struct port *port_new(struct conf *conf, struct target *target,
365 struct portal_group *pg);
366 struct port *port_new_pp(struct conf *conf, struct target *target,
368 struct port *port_find(const struct conf *conf, const char *name);
369 struct port *port_find_in_pg(const struct portal_group *pg,
371 void port_delete(struct port *port);
373 struct target *target_new(struct conf *conf, const char *name);
374 void target_delete(struct target *target);
375 struct target *target_find(struct conf *conf,
377 int target_set_redirection(struct target *target,
380 struct lun *lun_new(struct conf *conf, const char *name);
381 void lun_delete(struct lun *lun);
382 struct lun *lun_find(const struct conf *conf, const char *name);
383 void lun_set_backend(struct lun *lun, const char *value);
384 void lun_set_device_type(struct lun *lun, uint8_t value);
385 void lun_set_blocksize(struct lun *lun, size_t value);
386 void lun_set_device_id(struct lun *lun, const char *value);
387 void lun_set_path(struct lun *lun, const char *value);
388 void lun_set_scsiname(struct lun *lun, const char *value);
389 void lun_set_serial(struct lun *lun, const char *value);
390 void lun_set_size(struct lun *lun, size_t value);
391 void lun_set_ctl_lun(struct lun *lun, uint32_t value);
393 struct option *option_new(struct options *os,
394 const char *name, const char *value);
395 void option_delete(struct options *os, struct option *co);
396 struct option *option_find(const struct options *os, const char *name);
397 void option_set(struct option *o, const char *value);
399 void kernel_init(void);
400 int kernel_lun_add(struct lun *lun);
401 int kernel_lun_modify(struct lun *lun);
402 int kernel_lun_remove(struct lun *lun);
403 void kernel_handoff(struct connection *conn);
404 void kernel_limits(const char *offload,
405 size_t *max_data_segment_length);
406 int kernel_port_add(struct port *port);
407 int kernel_port_update(struct port *port, struct port *old);
408 int kernel_port_remove(struct port *port);
409 void kernel_capsicate(void);
411 #ifdef ICL_KERNEL_PROXY
412 void kernel_listen(struct addrinfo *ai, bool iser,
414 void kernel_accept(int *connection_id, int *portal_id,
415 struct sockaddr *client_sa,
416 socklen_t *client_salen);
417 void kernel_send(struct pdu *pdu);
418 void kernel_receive(struct pdu *pdu);
421 struct keys *keys_new(void);
422 void keys_delete(struct keys *keys);
423 void keys_load(struct keys *keys, const struct pdu *pdu);
424 void keys_save(struct keys *keys, struct pdu *pdu);
425 const char *keys_find(struct keys *keys, const char *name);
426 void keys_add(struct keys *keys,
427 const char *name, const char *value);
428 void keys_add_int(struct keys *keys,
429 const char *name, int value);
431 struct pdu *pdu_new(struct connection *conn);
432 struct pdu *pdu_new_response(struct pdu *request);
433 void pdu_delete(struct pdu *pdu);
434 void pdu_receive(struct pdu *request);
435 void pdu_send(struct pdu *response);
437 void login(struct connection *conn);
439 void discovery(struct connection *conn);
441 void log_init(int level);
442 void log_set_peer_name(const char *name);
443 void log_set_peer_addr(const char *addr);
444 void log_err(int, const char *, ...)
445 __dead2 __printflike(2, 3);
446 void log_errx(int, const char *, ...)
447 __dead2 __printflike(2, 3);
448 void log_warn(const char *, ...) __printflike(1, 2);
449 void log_warnx(const char *, ...) __printflike(1, 2);
450 void log_debugx(const char *, ...) __printflike(1, 2);
452 char *checked_strdup(const char *);
453 bool valid_iscsi_name(const char *name);
454 void set_timeout(int timeout, int fatal);
455 bool timed_out(void);