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>
38 #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
47 #define MAX_NAME_LEN 223
48 #define MAX_DATA_SEGMENT_LENGTH (128 * 1024)
49 #define MAX_BURST_LENGTH 16776192
52 TAILQ_ENTRY(auth) a_next;
53 struct auth_group *a_auth_group;
57 char *a_mutual_secret;
61 TAILQ_ENTRY(auth_name) an_next;
62 struct auth_group *an_auth_group;
63 char *an_initator_name;
67 TAILQ_ENTRY(auth_portal) ap_next;
68 struct auth_group *ap_auth_group;
69 char *ap_initator_portal;
72 #define AG_TYPE_UNKNOWN 0
73 #define AG_TYPE_DENY 1
74 #define AG_TYPE_NO_AUTHENTICATION 2
75 #define AG_TYPE_CHAP 3
76 #define AG_TYPE_CHAP_MUTUAL 4
79 TAILQ_ENTRY(auth_group) ag_next;
82 struct target *ag_target;
84 TAILQ_HEAD(, auth) ag_auths;
85 TAILQ_HEAD(, auth_name) ag_names;
86 TAILQ_HEAD(, auth_portal) ag_portals;
90 TAILQ_ENTRY(portal) p_next;
91 struct portal_group *p_portal_group;
94 struct addrinfo *p_ai;
95 #ifdef ICL_KERNEL_PROXY
99 TAILQ_HEAD(, target) p_targets;
103 struct portal_group {
104 TAILQ_ENTRY(portal_group) pg_next;
105 struct conf *pg_conf;
107 struct auth_group *pg_discovery_auth_group;
109 TAILQ_HEAD(, portal) pg_portals;
115 TAILQ_ENTRY(lun_option) lo_next;
122 TAILQ_ENTRY(lun) l_next;
123 TAILQ_HEAD(, lun_option) l_options;
124 struct target *l_target;
137 TAILQ_ENTRY(target) t_next;
138 TAILQ_HEAD(, lun) t_luns;
140 struct auth_group *t_auth_group;
141 struct portal_group *t_portal_group;
147 char *conf_pidfile_path;
148 TAILQ_HEAD(, target) conf_targets;
149 TAILQ_HEAD(, auth_group) conf_auth_groups;
150 TAILQ_HEAD(, portal_group) conf_portal_groups;
155 uint16_t conf_last_portal_group_tag;
156 #ifdef ICL_KERNEL_PROXY
159 struct pidfh *conf_pidfh;
161 bool conf_default_pg_defined;
162 bool conf_default_ag_defined;
163 bool conf_kernel_port_on;
166 #define CONN_SESSION_TYPE_NONE 0
167 #define CONN_SESSION_TYPE_DISCOVERY 1
168 #define CONN_SESSION_TYPE_NORMAL 2
170 #define CONN_DIGEST_NONE 0
171 #define CONN_DIGEST_CRC32C 1
174 struct portal *conn_portal;
175 struct target *conn_target;
177 int conn_session_type;
178 char *conn_initiator_name;
179 char *conn_initiator_addr;
180 char *conn_initiator_alias;
182 uint32_t conn_statsn;
183 size_t conn_max_data_segment_length;
184 size_t conn_max_burst_length;
185 int conn_immediate_data;
186 int conn_header_digest;
187 int conn_data_digest;
191 struct connection *pdu_connection;
192 struct iscsi_bhs *pdu_bhs;
197 #define KEYS_MAX 1024
200 char *keys_names[KEYS_MAX];
201 char *keys_values[KEYS_MAX];
203 size_t keys_data_len;
206 struct conf *conf_new(void);
207 struct conf *conf_new_from_file(const char *path);
208 struct conf *conf_new_from_kernel(void);
209 void conf_delete(struct conf *conf);
210 int conf_verify(struct conf *conf);
212 struct auth_group *auth_group_new(struct conf *conf, const char *name);
213 void auth_group_delete(struct auth_group *ag);
214 struct auth_group *auth_group_find(const struct conf *conf,
216 int auth_group_set_type_str(struct auth_group *ag,
219 const struct auth *auth_new_chap(struct auth_group *ag,
220 const char *user, const char *secret);
221 const struct auth *auth_new_chap_mutual(struct auth_group *ag,
222 const char *user, const char *secret,
223 const char *user2, const char *secret2);
224 const struct auth *auth_find(const struct auth_group *ag,
227 const struct auth_name *auth_name_new(struct auth_group *ag,
228 const char *initiator_name);
229 bool auth_name_defined(const struct auth_group *ag);
230 const struct auth_name *auth_name_find(const struct auth_group *ag,
231 const char *initiator_name);
233 const struct auth_portal *auth_portal_new(struct auth_group *ag,
234 const char *initiator_portal);
235 bool auth_portal_defined(const struct auth_group *ag);
236 const struct auth_portal *auth_portal_find(const struct auth_group *ag,
237 const char *initiator_portal);
239 struct portal_group *portal_group_new(struct conf *conf, const char *name);
240 void portal_group_delete(struct portal_group *pg);
241 struct portal_group *portal_group_find(const struct conf *conf,
243 int portal_group_add_listen(struct portal_group *pg,
244 const char *listen, bool iser);
246 struct target *target_new(struct conf *conf, const char *name);
247 void target_delete(struct target *target);
248 struct target *target_find(struct conf *conf,
251 struct lun *lun_new(struct target *target, int lun_id);
252 void lun_delete(struct lun *lun);
253 struct lun *lun_find(const struct target *target, int lun_id);
254 void lun_set_backend(struct lun *lun, const char *value);
255 void lun_set_blocksize(struct lun *lun, size_t value);
256 void lun_set_device_id(struct lun *lun, const char *value);
257 void lun_set_path(struct lun *lun, const char *value);
258 void lun_set_serial(struct lun *lun, const char *value);
259 void lun_set_size(struct lun *lun, size_t value);
260 void lun_set_ctl_lun(struct lun *lun, uint32_t value);
262 struct lun_option *lun_option_new(struct lun *lun,
263 const char *name, const char *value);
264 void lun_option_delete(struct lun_option *clo);
265 struct lun_option *lun_option_find(const struct lun *lun,
267 void lun_option_set(struct lun_option *clo,
270 void kernel_init(void);
271 int kernel_lun_add(struct lun *lun);
272 int kernel_lun_resize(struct lun *lun);
273 int kernel_lun_remove(struct lun *lun);
274 void kernel_handoff(struct connection *conn);
275 int kernel_port_on(void);
276 int kernel_port_off(void);
277 void kernel_capsicate(void);
279 #ifdef ICL_KERNEL_PROXY
280 void kernel_listen(struct addrinfo *ai, bool iser,
282 void kernel_accept(int *connection_id, int *portal_id,
283 struct sockaddr *client_sa,
284 socklen_t *client_salen);
285 void kernel_send(struct pdu *pdu);
286 void kernel_receive(struct pdu *pdu);
289 struct keys *keys_new(void);
290 void keys_delete(struct keys *keys);
291 void keys_load(struct keys *keys, const struct pdu *pdu);
292 void keys_save(struct keys *keys, struct pdu *pdu);
293 const char *keys_find(struct keys *keys, const char *name);
294 int keys_find_int(struct keys *keys, const char *name);
295 void keys_add(struct keys *keys,
296 const char *name, const char *value);
297 void keys_add_int(struct keys *keys,
298 const char *name, int value);
300 struct pdu *pdu_new(struct connection *conn);
301 struct pdu *pdu_new_response(struct pdu *request);
302 void pdu_delete(struct pdu *pdu);
303 void pdu_receive(struct pdu *request);
304 void pdu_send(struct pdu *response);
306 void login(struct connection *conn);
308 void discovery(struct connection *conn);
310 void log_init(int level);
311 void log_set_peer_name(const char *name);
312 void log_set_peer_addr(const char *addr);
313 void log_err(int, const char *, ...)
314 __dead2 __printflike(2, 3);
315 void log_errx(int, const char *, ...)
316 __dead2 __printflike(2, 3);
317 void log_warn(const char *, ...) __printflike(1, 2);
318 void log_warnx(const char *, ...) __printflike(1, 2);
319 void log_debugx(const char *, ...) __printflike(1, 2);
321 char *checked_strdup(const char *);
322 bool valid_iscsi_name(const char *name);
323 bool timed_out(void);