1/*-
2 * Copyright (c) 2012 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Edward Tomasz Napierala under sponsorship
6 * from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
16 *
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
27 * SUCH DAMAGE.
28 *
| 1/*-
2 * Copyright (c) 2012 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Edward Tomasz Napierala under sponsorship
6 * from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
16 *
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
27 * SUCH DAMAGE.
28 *
|
29 * $FreeBSD: stable/10/usr.sbin/ctld/ctld.c 263721 2014-03-25 12:06:42Z trasz $
| 29 * $FreeBSD: stable/10/usr.sbin/ctld/ctld.c 263723 2014-03-25 12:10:30Z trasz $
|
30 */
31
32#include <sys/types.h>
33#include <sys/time.h>
34#include <sys/socket.h>
35#include <sys/wait.h>
36#include <netinet/in.h>
37#include <assert.h>
38#include <ctype.h>
39#include <errno.h>
40#include <netdb.h>
41#include <signal.h>
42#include <stdbool.h>
43#include <stdio.h>
44#include <stdint.h>
45#include <stdlib.h>
46#include <string.h>
47#include <unistd.h>
48
49#include "ctld.h"
50
51static volatile bool sighup_received = false;
52static volatile bool sigterm_received = false;
53static volatile bool sigalrm_received = false;
54
55static int nchildren = 0;
56
57static void
58usage(void)
59{
60
61 fprintf(stderr, "usage: ctld [-d][-f config-file]\n");
62 exit(1);
63}
64
65char *
66checked_strdup(const char *s)
67{
68 char *c;
69
70 c = strdup(s);
71 if (c == NULL)
72 log_err(1, "strdup");
73 return (c);
74}
75
76struct conf *
77conf_new(void)
78{
79 struct conf *conf;
80
81 conf = calloc(1, sizeof(*conf));
82 if (conf == NULL)
83 log_err(1, "calloc");
84 TAILQ_INIT(&conf->conf_targets);
85 TAILQ_INIT(&conf->conf_auth_groups);
86 TAILQ_INIT(&conf->conf_portal_groups);
87
88 conf->conf_debug = 0;
89 conf->conf_timeout = 60;
90 conf->conf_maxproc = 30;
91
92 return (conf);
93}
94
95void
96conf_delete(struct conf *conf)
97{
98 struct target *targ, *tmp;
99 struct auth_group *ag, *cagtmp;
100 struct portal_group *pg, *cpgtmp;
101
102 assert(conf->conf_pidfh == NULL);
103
104 TAILQ_FOREACH_SAFE(targ, &conf->conf_targets, t_next, tmp)
105 target_delete(targ);
106 TAILQ_FOREACH_SAFE(ag, &conf->conf_auth_groups, ag_next, cagtmp)
107 auth_group_delete(ag);
108 TAILQ_FOREACH_SAFE(pg, &conf->conf_portal_groups, pg_next, cpgtmp)
109 portal_group_delete(pg);
110 free(conf->conf_pidfile_path);
111 free(conf);
112}
113
114static struct auth *
115auth_new(struct auth_group *ag)
116{
117 struct auth *auth;
118
119 auth = calloc(1, sizeof(*auth));
120 if (auth == NULL)
121 log_err(1, "calloc");
122 auth->a_auth_group = ag;
123 TAILQ_INSERT_TAIL(&ag->ag_auths, auth, a_next);
124 return (auth);
125}
126
127static void
128auth_delete(struct auth *auth)
129{
130 TAILQ_REMOVE(&auth->a_auth_group->ag_auths, auth, a_next);
131
132 free(auth->a_user);
133 free(auth->a_secret);
134 free(auth->a_mutual_user);
135 free(auth->a_mutual_secret);
136 free(auth);
137}
138
139const struct auth *
140auth_find(struct auth_group *ag, const char *user)
141{
142 const struct auth *auth;
143
144 TAILQ_FOREACH(auth, &ag->ag_auths, a_next) {
145 if (strcmp(auth->a_user, user) == 0)
146 return (auth);
147 }
148
149 return (NULL);
150}
151
152static void
153auth_check_secret_length(struct auth *auth)
154{
155 size_t len;
156
157 len = strlen(auth->a_secret);
158 if (len > 16) {
159 if (auth->a_auth_group->ag_name != NULL)
160 log_warnx("secret for user \"%s\", auth-group \"%s\", "
161 "is too long; it should be at most 16 characters "
162 "long", auth->a_user, auth->a_auth_group->ag_name);
163 else
164 log_warnx("secret for user \"%s\", target \"%s\", "
165 "is too long; it should be at most 16 characters "
166 "long", auth->a_user,
| 30 */
31
32#include <sys/types.h>
33#include <sys/time.h>
34#include <sys/socket.h>
35#include <sys/wait.h>
36#include <netinet/in.h>
37#include <assert.h>
38#include <ctype.h>
39#include <errno.h>
40#include <netdb.h>
41#include <signal.h>
42#include <stdbool.h>
43#include <stdio.h>
44#include <stdint.h>
45#include <stdlib.h>
46#include <string.h>
47#include <unistd.h>
48
49#include "ctld.h"
50
51static volatile bool sighup_received = false;
52static volatile bool sigterm_received = false;
53static volatile bool sigalrm_received = false;
54
55static int nchildren = 0;
56
57static void
58usage(void)
59{
60
61 fprintf(stderr, "usage: ctld [-d][-f config-file]\n");
62 exit(1);
63}
64
65char *
66checked_strdup(const char *s)
67{
68 char *c;
69
70 c = strdup(s);
71 if (c == NULL)
72 log_err(1, "strdup");
73 return (c);
74}
75
76struct conf *
77conf_new(void)
78{
79 struct conf *conf;
80
81 conf = calloc(1, sizeof(*conf));
82 if (conf == NULL)
83 log_err(1, "calloc");
84 TAILQ_INIT(&conf->conf_targets);
85 TAILQ_INIT(&conf->conf_auth_groups);
86 TAILQ_INIT(&conf->conf_portal_groups);
87
88 conf->conf_debug = 0;
89 conf->conf_timeout = 60;
90 conf->conf_maxproc = 30;
91
92 return (conf);
93}
94
95void
96conf_delete(struct conf *conf)
97{
98 struct target *targ, *tmp;
99 struct auth_group *ag, *cagtmp;
100 struct portal_group *pg, *cpgtmp;
101
102 assert(conf->conf_pidfh == NULL);
103
104 TAILQ_FOREACH_SAFE(targ, &conf->conf_targets, t_next, tmp)
105 target_delete(targ);
106 TAILQ_FOREACH_SAFE(ag, &conf->conf_auth_groups, ag_next, cagtmp)
107 auth_group_delete(ag);
108 TAILQ_FOREACH_SAFE(pg, &conf->conf_portal_groups, pg_next, cpgtmp)
109 portal_group_delete(pg);
110 free(conf->conf_pidfile_path);
111 free(conf);
112}
113
114static struct auth *
115auth_new(struct auth_group *ag)
116{
117 struct auth *auth;
118
119 auth = calloc(1, sizeof(*auth));
120 if (auth == NULL)
121 log_err(1, "calloc");
122 auth->a_auth_group = ag;
123 TAILQ_INSERT_TAIL(&ag->ag_auths, auth, a_next);
124 return (auth);
125}
126
127static void
128auth_delete(struct auth *auth)
129{
130 TAILQ_REMOVE(&auth->a_auth_group->ag_auths, auth, a_next);
131
132 free(auth->a_user);
133 free(auth->a_secret);
134 free(auth->a_mutual_user);
135 free(auth->a_mutual_secret);
136 free(auth);
137}
138
139const struct auth *
140auth_find(struct auth_group *ag, const char *user)
141{
142 const struct auth *auth;
143
144 TAILQ_FOREACH(auth, &ag->ag_auths, a_next) {
145 if (strcmp(auth->a_user, user) == 0)
146 return (auth);
147 }
148
149 return (NULL);
150}
151
152static void
153auth_check_secret_length(struct auth *auth)
154{
155 size_t len;
156
157 len = strlen(auth->a_secret);
158 if (len > 16) {
159 if (auth->a_auth_group->ag_name != NULL)
160 log_warnx("secret for user \"%s\", auth-group \"%s\", "
161 "is too long; it should be at most 16 characters "
162 "long", auth->a_user, auth->a_auth_group->ag_name);
163 else
164 log_warnx("secret for user \"%s\", target \"%s\", "
165 "is too long; it should be at most 16 characters "
166 "long", auth->a_user,
|
167 auth->a_auth_group->ag_target->t_iqn);
| 167 auth->a_auth_group->ag_target->t_name);
|
168 }
169 if (len < 12) {
170 if (auth->a_auth_group->ag_name != NULL)
171 log_warnx("secret for user \"%s\", auth-group \"%s\", "
172 "is too short; it should be at least 12 characters "
173 "long", auth->a_user,
174 auth->a_auth_group->ag_name);
175 else
176 log_warnx("secret for user \"%s\", target \"%s\", "
177 "is too short; it should be at least 16 characters "
178 "long", auth->a_user,
| 168 }
169 if (len < 12) {
170 if (auth->a_auth_group->ag_name != NULL)
171 log_warnx("secret for user \"%s\", auth-group \"%s\", "
172 "is too short; it should be at least 12 characters "
173 "long", auth->a_user,
174 auth->a_auth_group->ag_name);
175 else
176 log_warnx("secret for user \"%s\", target \"%s\", "
177 "is too short; it should be at least 16 characters "
178 "long", auth->a_user,
|
179 auth->a_auth_group->ag_target->t_iqn);
| 179 auth->a_auth_group->ag_target->t_name);
|
180 }
181
182 if (auth->a_mutual_secret != NULL) {
183 len = strlen(auth->a_secret);
184 if (len > 16) {
185 if (auth->a_auth_group->ag_name != NULL)
186 log_warnx("mutual secret for user \"%s\", "
187 "auth-group \"%s\", is too long; it should "
188 "be at most 16 characters long",
189 auth->a_user, auth->a_auth_group->ag_name);
190 else
191 log_warnx("mutual secret for user \"%s\", "
192 "target \"%s\", is too long; it should "
193 "be at most 16 characters long",
194 auth->a_user,
| 180 }
181
182 if (auth->a_mutual_secret != NULL) {
183 len = strlen(auth->a_secret);
184 if (len > 16) {
185 if (auth->a_auth_group->ag_name != NULL)
186 log_warnx("mutual secret for user \"%s\", "
187 "auth-group \"%s\", is too long; it should "
188 "be at most 16 characters long",
189 auth->a_user, auth->a_auth_group->ag_name);
190 else
191 log_warnx("mutual secret for user \"%s\", "
192 "target \"%s\", is too long; it should "
193 "be at most 16 characters long",
194 auth->a_user,
|
195 auth->a_auth_group->ag_target->t_iqn);
| 195 auth->a_auth_group->ag_target->t_name);
|
196 }
197 if (len < 12) {
198 if (auth->a_auth_group->ag_name != NULL)
199 log_warnx("mutual secret for user \"%s\", "
200 "auth-group \"%s\", is too short; it "
201 "should be at least 12 characters long",
202 auth->a_user, auth->a_auth_group->ag_name);
203 else
204 log_warnx("mutual secret for user \"%s\", "
205 "target \"%s\", is too short; it should be "
206 "at least 16 characters long",
207 auth->a_user,
| 196 }
197 if (len < 12) {
198 if (auth->a_auth_group->ag_name != NULL)
199 log_warnx("mutual secret for user \"%s\", "
200 "auth-group \"%s\", is too short; it "
201 "should be at least 12 characters long",
202 auth->a_user, auth->a_auth_group->ag_name);
203 else
204 log_warnx("mutual secret for user \"%s\", "
205 "target \"%s\", is too short; it should be "
206 "at least 16 characters long",
207 auth->a_user,
|
208 auth->a_auth_group->ag_target->t_iqn);
| 208 auth->a_auth_group->ag_target->t_name);
|
209 }
210 }
211}
212
213const struct auth *
214auth_new_chap(struct auth_group *ag, const char *user,
215 const char *secret)
216{
217 struct auth *auth;
218
219 if (ag->ag_type == AG_TYPE_UNKNOWN)
220 ag->ag_type = AG_TYPE_CHAP;
221 if (ag->ag_type != AG_TYPE_CHAP) {
222 if (ag->ag_name != NULL)
223 log_warnx("cannot mix \"chap\" authentication with "
224 "other types for auth-group \"%s\"", ag->ag_name);
225 else
226 log_warnx("cannot mix \"chap\" authentication with "
227 "other types for target \"%s\"",
| 209 }
210 }
211}
212
213const struct auth *
214auth_new_chap(struct auth_group *ag, const char *user,
215 const char *secret)
216{
217 struct auth *auth;
218
219 if (ag->ag_type == AG_TYPE_UNKNOWN)
220 ag->ag_type = AG_TYPE_CHAP;
221 if (ag->ag_type != AG_TYPE_CHAP) {
222 if (ag->ag_name != NULL)
223 log_warnx("cannot mix \"chap\" authentication with "
224 "other types for auth-group \"%s\"", ag->ag_name);
225 else
226 log_warnx("cannot mix \"chap\" authentication with "
227 "other types for target \"%s\"",
|
228 ag->ag_target->t_iqn);
| 228 ag->ag_target->t_name);
|
229 return (NULL);
230 }
231
232 auth = auth_new(ag);
233 auth->a_user = checked_strdup(user);
234 auth->a_secret = checked_strdup(secret);
235
236 auth_check_secret_length(auth);
237
238 return (auth);
239}
240
241const struct auth *
242auth_new_chap_mutual(struct auth_group *ag, const char *user,
243 const char *secret, const char *user2, const char *secret2)
244{
245 struct auth *auth;
246
247 if (ag->ag_type == AG_TYPE_UNKNOWN)
248 ag->ag_type = AG_TYPE_CHAP_MUTUAL;
249 if (ag->ag_type != AG_TYPE_CHAP_MUTUAL) {
250 if (ag->ag_name != NULL)
251 log_warnx("cannot mix \"chap-mutual\" authentication "
252 "with other types for auth-group \"%s\"",
253 ag->ag_name);
254 else
255 log_warnx("cannot mix \"chap-mutual\" authentication "
256 "with other types for target \"%s\"",
| 229 return (NULL);
230 }
231
232 auth = auth_new(ag);
233 auth->a_user = checked_strdup(user);
234 auth->a_secret = checked_strdup(secret);
235
236 auth_check_secret_length(auth);
237
238 return (auth);
239}
240
241const struct auth *
242auth_new_chap_mutual(struct auth_group *ag, const char *user,
243 const char *secret, const char *user2, const char *secret2)
244{
245 struct auth *auth;
246
247 if (ag->ag_type == AG_TYPE_UNKNOWN)
248 ag->ag_type = AG_TYPE_CHAP_MUTUAL;
249 if (ag->ag_type != AG_TYPE_CHAP_MUTUAL) {
250 if (ag->ag_name != NULL)
251 log_warnx("cannot mix \"chap-mutual\" authentication "
252 "with other types for auth-group \"%s\"",
253 ag->ag_name);
254 else
255 log_warnx("cannot mix \"chap-mutual\" authentication "
256 "with other types for target \"%s\"",
|
257 ag->ag_target->t_iqn);
| 257 ag->ag_target->t_name);
|
258 return (NULL);
259 }
260
261 auth = auth_new(ag);
262 auth->a_user = checked_strdup(user);
263 auth->a_secret = checked_strdup(secret);
264 auth->a_mutual_user = checked_strdup(user2);
265 auth->a_mutual_secret = checked_strdup(secret2);
266
267 auth_check_secret_length(auth);
268
269 return (auth);
270}
271
272const struct auth_name *
273auth_name_new(struct auth_group *ag, const char *name)
274{
275 struct auth_name *an;
276
277 an = calloc(1, sizeof(*an));
278 if (an == NULL)
279 log_err(1, "calloc");
280 an->an_auth_group = ag;
281 an->an_initator_name = checked_strdup(name);
282 TAILQ_INSERT_TAIL(&ag->ag_names, an, an_next);
283 return (an);
284}
285
286static void
287auth_name_delete(struct auth_name *an)
288{
289 TAILQ_REMOVE(&an->an_auth_group->ag_names, an, an_next);
290
291 free(an->an_initator_name);
292 free(an);
293}
294
295bool
296auth_name_defined(const struct auth_group *ag)
297{
298 if (TAILQ_EMPTY(&ag->ag_names))
299 return (false);
300 return (true);
301}
302
303const struct auth_name *
304auth_name_find(const struct auth_group *ag, const char *name)
305{
306 const struct auth_name *auth_name;
307
308 TAILQ_FOREACH(auth_name, &ag->ag_names, an_next) {
309 if (strcmp(auth_name->an_initator_name, name) == 0)
310 return (auth_name);
311 }
312
313 return (NULL);
314}
315
316const struct auth_portal *
317auth_portal_new(struct auth_group *ag, const char *portal)
318{
319 struct auth_portal *ap;
320
321 ap = calloc(1, sizeof(*ap));
322 if (ap == NULL)
323 log_err(1, "calloc");
324 ap->ap_auth_group = ag;
325 ap->ap_initator_portal = checked_strdup(portal);
326 TAILQ_INSERT_TAIL(&ag->ag_portals, ap, ap_next);
327 return (ap);
328}
329
330static void
331auth_portal_delete(struct auth_portal *ap)
332{
333 TAILQ_REMOVE(&ap->ap_auth_group->ag_portals, ap, ap_next);
334
335 free(ap->ap_initator_portal);
336 free(ap);
337}
338
339bool
340auth_portal_defined(const struct auth_group *ag)
341{
342 if (TAILQ_EMPTY(&ag->ag_portals))
343 return (false);
344 return (true);
345}
346
347const struct auth_portal *
348auth_portal_find(const struct auth_group *ag, const char *portal)
349{
350 const struct auth_portal *auth_portal;
351
352 TAILQ_FOREACH(auth_portal, &ag->ag_portals, ap_next) {
353 if (strcmp(auth_portal->ap_initator_portal, portal) == 0)
354 return (auth_portal);
355 }
356
357 return (NULL);
358}
359
360struct auth_group *
361auth_group_new(struct conf *conf, const char *name)
362{
363 struct auth_group *ag;
364
365 if (name != NULL) {
366 ag = auth_group_find(conf, name);
367 if (ag != NULL) {
368 log_warnx("duplicated auth-group \"%s\"", name);
369 return (NULL);
370 }
371 }
372
373 ag = calloc(1, sizeof(*ag));
374 if (ag == NULL)
375 log_err(1, "calloc");
376 if (name != NULL)
377 ag->ag_name = checked_strdup(name);
378 TAILQ_INIT(&ag->ag_auths);
379 TAILQ_INIT(&ag->ag_names);
380 TAILQ_INIT(&ag->ag_portals);
381 ag->ag_conf = conf;
382 TAILQ_INSERT_TAIL(&conf->conf_auth_groups, ag, ag_next);
383
384 return (ag);
385}
386
387void
388auth_group_delete(struct auth_group *ag)
389{
390 struct auth *auth, *auth_tmp;
391 struct auth_name *auth_name, *auth_name_tmp;
392 struct auth_portal *auth_portal, *auth_portal_tmp;
393
394 TAILQ_REMOVE(&ag->ag_conf->conf_auth_groups, ag, ag_next);
395
396 TAILQ_FOREACH_SAFE(auth, &ag->ag_auths, a_next, auth_tmp)
397 auth_delete(auth);
398 TAILQ_FOREACH_SAFE(auth_name, &ag->ag_names, an_next, auth_name_tmp)
399 auth_name_delete(auth_name);
400 TAILQ_FOREACH_SAFE(auth_portal, &ag->ag_portals, ap_next,
401 auth_portal_tmp)
402 auth_portal_delete(auth_portal);
403 free(ag->ag_name);
404 free(ag);
405}
406
407struct auth_group *
408auth_group_find(struct conf *conf, const char *name)
409{
410 struct auth_group *ag;
411
412 TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
413 if (ag->ag_name != NULL && strcmp(ag->ag_name, name) == 0)
414 return (ag);
415 }
416
417 return (NULL);
418}
419
420static struct portal *
421portal_new(struct portal_group *pg)
422{
423 struct portal *portal;
424
425 portal = calloc(1, sizeof(*portal));
426 if (portal == NULL)
427 log_err(1, "calloc");
428 TAILQ_INIT(&portal->p_targets);
429 portal->p_portal_group = pg;
430 TAILQ_INSERT_TAIL(&pg->pg_portals, portal, p_next);
431 return (portal);
432}
433
434static void
435portal_delete(struct portal *portal)
436{
437 TAILQ_REMOVE(&portal->p_portal_group->pg_portals, portal, p_next);
438 freeaddrinfo(portal->p_ai);
439 free(portal->p_listen);
440 free(portal);
441}
442
443struct portal_group *
444portal_group_new(struct conf *conf, const char *name)
445{
446 struct portal_group *pg;
447
448 pg = portal_group_find(conf, name);
449 if (pg != NULL) {
450 log_warnx("duplicated portal-group \"%s\"", name);
451 return (NULL);
452 }
453
454 pg = calloc(1, sizeof(*pg));
455 if (pg == NULL)
456 log_err(1, "calloc");
457 pg->pg_name = checked_strdup(name);
458 TAILQ_INIT(&pg->pg_portals);
459 pg->pg_conf = conf;
460 conf->conf_last_portal_group_tag++;
461 pg->pg_tag = conf->conf_last_portal_group_tag;
462 TAILQ_INSERT_TAIL(&conf->conf_portal_groups, pg, pg_next);
463
464 return (pg);
465}
466
467void
468portal_group_delete(struct portal_group *pg)
469{
470 struct portal *portal, *tmp;
471
472 TAILQ_REMOVE(&pg->pg_conf->conf_portal_groups, pg, pg_next);
473
474 TAILQ_FOREACH_SAFE(portal, &pg->pg_portals, p_next, tmp)
475 portal_delete(portal);
476 free(pg->pg_name);
477 free(pg);
478}
479
480struct portal_group *
481portal_group_find(struct conf *conf, const char *name)
482{
483 struct portal_group *pg;
484
485 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
486 if (strcmp(pg->pg_name, name) == 0)
487 return (pg);
488 }
489
490 return (NULL);
491}
492
493int
494portal_group_add_listen(struct portal_group *pg, const char *value, bool iser)
495{
496 struct addrinfo hints;
497 struct portal *portal;
498 char *addr, *ch, *arg;
499 const char *port;
500 int error, colons = 0;
501
502#ifndef ICL_KERNEL_PROXY
503 if (iser) {
504 log_warnx("ctld(8) compiled without ICL_KERNEL_PROXY "
505 "does not support iSER protocol");
506 return (-1);
507 }
508#endif
509
510 portal = portal_new(pg);
511 portal->p_listen = checked_strdup(value);
512 portal->p_iser = iser;
513
514 arg = portal->p_listen;
515 if (arg[0] == '\0') {
516 log_warnx("empty listen address");
517 free(portal->p_listen);
518 free(portal);
519 return (1);
520 }
521 if (arg[0] == '[') {
522 /*
523 * IPv6 address in square brackets, perhaps with port.
524 */
525 arg++;
526 addr = strsep(&arg, "]");
527 if (arg == NULL) {
528 log_warnx("invalid listen address %s",
529 portal->p_listen);
530 free(portal->p_listen);
531 free(portal);
532 return (1);
533 }
534 if (arg[0] == '\0') {
535 port = "3260";
536 } else if (arg[0] == ':') {
537 port = arg + 1;
538 } else {
539 log_warnx("invalid listen address %s",
540 portal->p_listen);
541 free(portal->p_listen);
542 free(portal);
543 return (1);
544 }
545 } else {
546 /*
547 * Either IPv6 address without brackets - and without
548 * a port - or IPv4 address. Just count the colons.
549 */
550 for (ch = arg; *ch != '\0'; ch++) {
551 if (*ch == ':')
552 colons++;
553 }
554 if (colons > 1) {
555 addr = arg;
556 port = "3260";
557 } else {
558 addr = strsep(&arg, ":");
559 if (arg == NULL)
560 port = "3260";
561 else
562 port = arg;
563 }
564 }
565
566 memset(&hints, 0, sizeof(hints));
567 hints.ai_family = PF_UNSPEC;
568 hints.ai_socktype = SOCK_STREAM;
569 hints.ai_flags = AI_PASSIVE;
570
571 error = getaddrinfo(addr, port, &hints, &portal->p_ai);
572 if (error != 0) {
573 log_warnx("getaddrinfo for %s failed: %s",
574 portal->p_listen, gai_strerror(error));
575 free(portal->p_listen);
576 free(portal);
577 return (1);
578 }
579
580 /*
581 * XXX: getaddrinfo(3) may return multiple addresses; we should turn
582 * those into multiple portals.
583 */
584
585 return (0);
586}
587
588static bool
589valid_hex(const char ch)
590{
591 switch (ch) {
592 case '0':
593 case '1':
594 case '2':
595 case '3':
596 case '4':
597 case '5':
598 case '6':
599 case '7':
600 case '8':
601 case '9':
602 case 'a':
603 case 'A':
604 case 'b':
605 case 'B':
606 case 'c':
607 case 'C':
608 case 'd':
609 case 'D':
610 case 'e':
611 case 'E':
612 case 'f':
613 case 'F':
614 return (true);
615 default:
616 return (false);
617 }
618}
619
620bool
621valid_iscsi_name(const char *name)
622{
623 int i;
624
625 if (strlen(name) >= MAX_NAME_LEN) {
626 log_warnx("overlong name for target \"%s\"; max length allowed "
627 "by iSCSI specification is %d characters",
628 name, MAX_NAME_LEN);
629 return (false);
630 }
631
632 /*
633 * In the cases below, we don't return an error, just in case the admin
634 * was right, and we're wrong.
635 */
636 if (strncasecmp(name, "iqn.", strlen("iqn.")) == 0) {
637 for (i = strlen("iqn."); name[i] != '\0'; i++) {
638 /*
639 * XXX: We should verify UTF-8 normalisation, as defined
640 * by 3.2.6.2: iSCSI Name Encoding.
641 */
642 if (isalnum(name[i]))
643 continue;
644 if (name[i] == '-' || name[i] == '.' || name[i] == ':')
645 continue;
646 log_warnx("invalid character \"%c\" in target name "
647 "\"%s\"; allowed characters are letters, digits, "
648 "'-', '.', and ':'", name[i], name);
649 break;
650 }
651 /*
652 * XXX: Check more stuff: valid date and a valid reversed domain.
653 */
654 } else if (strncasecmp(name, "eui.", strlen("eui.")) == 0) {
655 if (strlen(name) != strlen("eui.") + 16)
656 log_warnx("invalid target name \"%s\"; the \"eui.\" "
657 "should be followed by exactly 16 hexadecimal "
658 "digits", name);
659 for (i = strlen("eui."); name[i] != '\0'; i++) {
660 if (!valid_hex(name[i])) {
661 log_warnx("invalid character \"%c\" in target "
662 "name \"%s\"; allowed characters are 1-9 "
663 "and A-F", name[i], name);
664 break;
665 }
666 }
667 } else if (strncasecmp(name, "naa.", strlen("naa.")) == 0) {
668 if (strlen(name) > strlen("naa.") + 32)
669 log_warnx("invalid target name \"%s\"; the \"naa.\" "
670 "should be followed by at most 32 hexadecimal "
671 "digits", name);
672 for (i = strlen("naa."); name[i] != '\0'; i++) {
673 if (!valid_hex(name[i])) {
674 log_warnx("invalid character \"%c\" in target "
675 "name \"%s\"; allowed characters are 1-9 "
676 "and A-F", name[i], name);
677 break;
678 }
679 }
680 } else {
681 log_warnx("invalid target name \"%s\"; should start with "
682 "either \".iqn\", \"eui.\", or \"naa.\"",
683 name);
684 }
685 return (true);
686}
687
688struct target *
| 258 return (NULL);
259 }
260
261 auth = auth_new(ag);
262 auth->a_user = checked_strdup(user);
263 auth->a_secret = checked_strdup(secret);
264 auth->a_mutual_user = checked_strdup(user2);
265 auth->a_mutual_secret = checked_strdup(secret2);
266
267 auth_check_secret_length(auth);
268
269 return (auth);
270}
271
272const struct auth_name *
273auth_name_new(struct auth_group *ag, const char *name)
274{
275 struct auth_name *an;
276
277 an = calloc(1, sizeof(*an));
278 if (an == NULL)
279 log_err(1, "calloc");
280 an->an_auth_group = ag;
281 an->an_initator_name = checked_strdup(name);
282 TAILQ_INSERT_TAIL(&ag->ag_names, an, an_next);
283 return (an);
284}
285
286static void
287auth_name_delete(struct auth_name *an)
288{
289 TAILQ_REMOVE(&an->an_auth_group->ag_names, an, an_next);
290
291 free(an->an_initator_name);
292 free(an);
293}
294
295bool
296auth_name_defined(const struct auth_group *ag)
297{
298 if (TAILQ_EMPTY(&ag->ag_names))
299 return (false);
300 return (true);
301}
302
303const struct auth_name *
304auth_name_find(const struct auth_group *ag, const char *name)
305{
306 const struct auth_name *auth_name;
307
308 TAILQ_FOREACH(auth_name, &ag->ag_names, an_next) {
309 if (strcmp(auth_name->an_initator_name, name) == 0)
310 return (auth_name);
311 }
312
313 return (NULL);
314}
315
316const struct auth_portal *
317auth_portal_new(struct auth_group *ag, const char *portal)
318{
319 struct auth_portal *ap;
320
321 ap = calloc(1, sizeof(*ap));
322 if (ap == NULL)
323 log_err(1, "calloc");
324 ap->ap_auth_group = ag;
325 ap->ap_initator_portal = checked_strdup(portal);
326 TAILQ_INSERT_TAIL(&ag->ag_portals, ap, ap_next);
327 return (ap);
328}
329
330static void
331auth_portal_delete(struct auth_portal *ap)
332{
333 TAILQ_REMOVE(&ap->ap_auth_group->ag_portals, ap, ap_next);
334
335 free(ap->ap_initator_portal);
336 free(ap);
337}
338
339bool
340auth_portal_defined(const struct auth_group *ag)
341{
342 if (TAILQ_EMPTY(&ag->ag_portals))
343 return (false);
344 return (true);
345}
346
347const struct auth_portal *
348auth_portal_find(const struct auth_group *ag, const char *portal)
349{
350 const struct auth_portal *auth_portal;
351
352 TAILQ_FOREACH(auth_portal, &ag->ag_portals, ap_next) {
353 if (strcmp(auth_portal->ap_initator_portal, portal) == 0)
354 return (auth_portal);
355 }
356
357 return (NULL);
358}
359
360struct auth_group *
361auth_group_new(struct conf *conf, const char *name)
362{
363 struct auth_group *ag;
364
365 if (name != NULL) {
366 ag = auth_group_find(conf, name);
367 if (ag != NULL) {
368 log_warnx("duplicated auth-group \"%s\"", name);
369 return (NULL);
370 }
371 }
372
373 ag = calloc(1, sizeof(*ag));
374 if (ag == NULL)
375 log_err(1, "calloc");
376 if (name != NULL)
377 ag->ag_name = checked_strdup(name);
378 TAILQ_INIT(&ag->ag_auths);
379 TAILQ_INIT(&ag->ag_names);
380 TAILQ_INIT(&ag->ag_portals);
381 ag->ag_conf = conf;
382 TAILQ_INSERT_TAIL(&conf->conf_auth_groups, ag, ag_next);
383
384 return (ag);
385}
386
387void
388auth_group_delete(struct auth_group *ag)
389{
390 struct auth *auth, *auth_tmp;
391 struct auth_name *auth_name, *auth_name_tmp;
392 struct auth_portal *auth_portal, *auth_portal_tmp;
393
394 TAILQ_REMOVE(&ag->ag_conf->conf_auth_groups, ag, ag_next);
395
396 TAILQ_FOREACH_SAFE(auth, &ag->ag_auths, a_next, auth_tmp)
397 auth_delete(auth);
398 TAILQ_FOREACH_SAFE(auth_name, &ag->ag_names, an_next, auth_name_tmp)
399 auth_name_delete(auth_name);
400 TAILQ_FOREACH_SAFE(auth_portal, &ag->ag_portals, ap_next,
401 auth_portal_tmp)
402 auth_portal_delete(auth_portal);
403 free(ag->ag_name);
404 free(ag);
405}
406
407struct auth_group *
408auth_group_find(struct conf *conf, const char *name)
409{
410 struct auth_group *ag;
411
412 TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
413 if (ag->ag_name != NULL && strcmp(ag->ag_name, name) == 0)
414 return (ag);
415 }
416
417 return (NULL);
418}
419
420static struct portal *
421portal_new(struct portal_group *pg)
422{
423 struct portal *portal;
424
425 portal = calloc(1, sizeof(*portal));
426 if (portal == NULL)
427 log_err(1, "calloc");
428 TAILQ_INIT(&portal->p_targets);
429 portal->p_portal_group = pg;
430 TAILQ_INSERT_TAIL(&pg->pg_portals, portal, p_next);
431 return (portal);
432}
433
434static void
435portal_delete(struct portal *portal)
436{
437 TAILQ_REMOVE(&portal->p_portal_group->pg_portals, portal, p_next);
438 freeaddrinfo(portal->p_ai);
439 free(portal->p_listen);
440 free(portal);
441}
442
443struct portal_group *
444portal_group_new(struct conf *conf, const char *name)
445{
446 struct portal_group *pg;
447
448 pg = portal_group_find(conf, name);
449 if (pg != NULL) {
450 log_warnx("duplicated portal-group \"%s\"", name);
451 return (NULL);
452 }
453
454 pg = calloc(1, sizeof(*pg));
455 if (pg == NULL)
456 log_err(1, "calloc");
457 pg->pg_name = checked_strdup(name);
458 TAILQ_INIT(&pg->pg_portals);
459 pg->pg_conf = conf;
460 conf->conf_last_portal_group_tag++;
461 pg->pg_tag = conf->conf_last_portal_group_tag;
462 TAILQ_INSERT_TAIL(&conf->conf_portal_groups, pg, pg_next);
463
464 return (pg);
465}
466
467void
468portal_group_delete(struct portal_group *pg)
469{
470 struct portal *portal, *tmp;
471
472 TAILQ_REMOVE(&pg->pg_conf->conf_portal_groups, pg, pg_next);
473
474 TAILQ_FOREACH_SAFE(portal, &pg->pg_portals, p_next, tmp)
475 portal_delete(portal);
476 free(pg->pg_name);
477 free(pg);
478}
479
480struct portal_group *
481portal_group_find(struct conf *conf, const char *name)
482{
483 struct portal_group *pg;
484
485 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
486 if (strcmp(pg->pg_name, name) == 0)
487 return (pg);
488 }
489
490 return (NULL);
491}
492
493int
494portal_group_add_listen(struct portal_group *pg, const char *value, bool iser)
495{
496 struct addrinfo hints;
497 struct portal *portal;
498 char *addr, *ch, *arg;
499 const char *port;
500 int error, colons = 0;
501
502#ifndef ICL_KERNEL_PROXY
503 if (iser) {
504 log_warnx("ctld(8) compiled without ICL_KERNEL_PROXY "
505 "does not support iSER protocol");
506 return (-1);
507 }
508#endif
509
510 portal = portal_new(pg);
511 portal->p_listen = checked_strdup(value);
512 portal->p_iser = iser;
513
514 arg = portal->p_listen;
515 if (arg[0] == '\0') {
516 log_warnx("empty listen address");
517 free(portal->p_listen);
518 free(portal);
519 return (1);
520 }
521 if (arg[0] == '[') {
522 /*
523 * IPv6 address in square brackets, perhaps with port.
524 */
525 arg++;
526 addr = strsep(&arg, "]");
527 if (arg == NULL) {
528 log_warnx("invalid listen address %s",
529 portal->p_listen);
530 free(portal->p_listen);
531 free(portal);
532 return (1);
533 }
534 if (arg[0] == '\0') {
535 port = "3260";
536 } else if (arg[0] == ':') {
537 port = arg + 1;
538 } else {
539 log_warnx("invalid listen address %s",
540 portal->p_listen);
541 free(portal->p_listen);
542 free(portal);
543 return (1);
544 }
545 } else {
546 /*
547 * Either IPv6 address without brackets - and without
548 * a port - or IPv4 address. Just count the colons.
549 */
550 for (ch = arg; *ch != '\0'; ch++) {
551 if (*ch == ':')
552 colons++;
553 }
554 if (colons > 1) {
555 addr = arg;
556 port = "3260";
557 } else {
558 addr = strsep(&arg, ":");
559 if (arg == NULL)
560 port = "3260";
561 else
562 port = arg;
563 }
564 }
565
566 memset(&hints, 0, sizeof(hints));
567 hints.ai_family = PF_UNSPEC;
568 hints.ai_socktype = SOCK_STREAM;
569 hints.ai_flags = AI_PASSIVE;
570
571 error = getaddrinfo(addr, port, &hints, &portal->p_ai);
572 if (error != 0) {
573 log_warnx("getaddrinfo for %s failed: %s",
574 portal->p_listen, gai_strerror(error));
575 free(portal->p_listen);
576 free(portal);
577 return (1);
578 }
579
580 /*
581 * XXX: getaddrinfo(3) may return multiple addresses; we should turn
582 * those into multiple portals.
583 */
584
585 return (0);
586}
587
588static bool
589valid_hex(const char ch)
590{
591 switch (ch) {
592 case '0':
593 case '1':
594 case '2':
595 case '3':
596 case '4':
597 case '5':
598 case '6':
599 case '7':
600 case '8':
601 case '9':
602 case 'a':
603 case 'A':
604 case 'b':
605 case 'B':
606 case 'c':
607 case 'C':
608 case 'd':
609 case 'D':
610 case 'e':
611 case 'E':
612 case 'f':
613 case 'F':
614 return (true);
615 default:
616 return (false);
617 }
618}
619
620bool
621valid_iscsi_name(const char *name)
622{
623 int i;
624
625 if (strlen(name) >= MAX_NAME_LEN) {
626 log_warnx("overlong name for target \"%s\"; max length allowed "
627 "by iSCSI specification is %d characters",
628 name, MAX_NAME_LEN);
629 return (false);
630 }
631
632 /*
633 * In the cases below, we don't return an error, just in case the admin
634 * was right, and we're wrong.
635 */
636 if (strncasecmp(name, "iqn.", strlen("iqn.")) == 0) {
637 for (i = strlen("iqn."); name[i] != '\0'; i++) {
638 /*
639 * XXX: We should verify UTF-8 normalisation, as defined
640 * by 3.2.6.2: iSCSI Name Encoding.
641 */
642 if (isalnum(name[i]))
643 continue;
644 if (name[i] == '-' || name[i] == '.' || name[i] == ':')
645 continue;
646 log_warnx("invalid character \"%c\" in target name "
647 "\"%s\"; allowed characters are letters, digits, "
648 "'-', '.', and ':'", name[i], name);
649 break;
650 }
651 /*
652 * XXX: Check more stuff: valid date and a valid reversed domain.
653 */
654 } else if (strncasecmp(name, "eui.", strlen("eui.")) == 0) {
655 if (strlen(name) != strlen("eui.") + 16)
656 log_warnx("invalid target name \"%s\"; the \"eui.\" "
657 "should be followed by exactly 16 hexadecimal "
658 "digits", name);
659 for (i = strlen("eui."); name[i] != '\0'; i++) {
660 if (!valid_hex(name[i])) {
661 log_warnx("invalid character \"%c\" in target "
662 "name \"%s\"; allowed characters are 1-9 "
663 "and A-F", name[i], name);
664 break;
665 }
666 }
667 } else if (strncasecmp(name, "naa.", strlen("naa.")) == 0) {
668 if (strlen(name) > strlen("naa.") + 32)
669 log_warnx("invalid target name \"%s\"; the \"naa.\" "
670 "should be followed by at most 32 hexadecimal "
671 "digits", name);
672 for (i = strlen("naa."); name[i] != '\0'; i++) {
673 if (!valid_hex(name[i])) {
674 log_warnx("invalid character \"%c\" in target "
675 "name \"%s\"; allowed characters are 1-9 "
676 "and A-F", name[i], name);
677 break;
678 }
679 }
680 } else {
681 log_warnx("invalid target name \"%s\"; should start with "
682 "either \".iqn\", \"eui.\", or \"naa.\"",
683 name);
684 }
685 return (true);
686}
687
688struct target *
|
689target_new(struct conf *conf, const char *iqn)
| 689target_new(struct conf *conf, const char *name)
|
690{
691 struct target *targ;
692 int i, len;
693
| 690{
691 struct target *targ;
692 int i, len;
693
|
694 targ = target_find(conf, iqn);
| 694 targ = target_find(conf, name);
|
695 if (targ != NULL) {
| 695 if (targ != NULL) {
|
696 log_warnx("duplicated target \"%s\"", iqn);
| 696 log_warnx("duplicated target \"%s\"", name);
|
697 return (NULL);
698 }
| 697 return (NULL);
698 }
|
699 if (valid_iscsi_name(iqn) == false) {
700 log_warnx("target name \"%s\" is invalid", iqn);
| 699 if (valid_iscsi_name(name) == false) {
700 log_warnx("target name \"%s\" is invalid", name);
|
701 return (NULL);
702 }
703 targ = calloc(1, sizeof(*targ));
704 if (targ == NULL)
705 log_err(1, "calloc");
| 701 return (NULL);
702 }
703 targ = calloc(1, sizeof(*targ));
704 if (targ == NULL)
705 log_err(1, "calloc");
|
706 targ->t_iqn = checked_strdup(iqn);
| 706 targ->t_name = checked_strdup(name);
|
707
708 /*
709 * RFC 3722 requires us to normalize the name to lowercase.
710 */
| 707
708 /*
709 * RFC 3722 requires us to normalize the name to lowercase.
710 */
|
711 len = strlen(iqn);
| 711 len = strlen(name);
|
712 for (i = 0; i < len; i++)
| 712 for (i = 0; i < len; i++)
|
713 targ->t_iqn[i] = tolower(targ->t_iqn[i]);
| 713 targ->t_name[i] = tolower(targ->t_name[i]);
|
714
715 TAILQ_INIT(&targ->t_luns);
716 targ->t_conf = conf;
717 TAILQ_INSERT_TAIL(&conf->conf_targets, targ, t_next);
718
719 return (targ);
720}
721
722void
723target_delete(struct target *targ)
724{
725 struct lun *lun, *tmp;
726
727 TAILQ_REMOVE(&targ->t_conf->conf_targets, targ, t_next);
728
729 TAILQ_FOREACH_SAFE(lun, &targ->t_luns, l_next, tmp)
730 lun_delete(lun);
| 714
715 TAILQ_INIT(&targ->t_luns);
716 targ->t_conf = conf;
717 TAILQ_INSERT_TAIL(&conf->conf_targets, targ, t_next);
718
719 return (targ);
720}
721
722void
723target_delete(struct target *targ)
724{
725 struct lun *lun, *tmp;
726
727 TAILQ_REMOVE(&targ->t_conf->conf_targets, targ, t_next);
728
729 TAILQ_FOREACH_SAFE(lun, &targ->t_luns, l_next, tmp)
730 lun_delete(lun);
|
731 free(targ->t_iqn);
| 731 free(targ->t_name);
|
732 free(targ);
733}
734
735struct target *
| 732 free(targ);
733}
734
735struct target *
|
736target_find(struct conf *conf, const char *iqn)
| 736target_find(struct conf *conf, const char *name)
|
737{
738 struct target *targ;
739
740 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
| 737{
738 struct target *targ;
739
740 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
741 if (strcasecmp(targ->t_iqn, iqn) == 0)
| 741 if (strcasecmp(targ->t_name, name) == 0)
|
742 return (targ);
743 }
744
745 return (NULL);
746}
747
748struct lun *
749lun_new(struct target *targ, int lun_id)
750{
751 struct lun *lun;
752
753 lun = lun_find(targ, lun_id);
754 if (lun != NULL) {
755 log_warnx("duplicated lun %d for target \"%s\"",
| 742 return (targ);
743 }
744
745 return (NULL);
746}
747
748struct lun *
749lun_new(struct target *targ, int lun_id)
750{
751 struct lun *lun;
752
753 lun = lun_find(targ, lun_id);
754 if (lun != NULL) {
755 log_warnx("duplicated lun %d for target \"%s\"",
|
756 lun_id, targ->t_iqn);
| 756 lun_id, targ->t_name);
|
757 return (NULL);
758 }
759
760 lun = calloc(1, sizeof(*lun));
761 if (lun == NULL)
762 log_err(1, "calloc");
763 lun->l_lun = lun_id;
764 TAILQ_INIT(&lun->l_options);
765 lun->l_target = targ;
766 TAILQ_INSERT_TAIL(&targ->t_luns, lun, l_next);
767
768 return (lun);
769}
770
771void
772lun_delete(struct lun *lun)
773{
774 struct lun_option *lo, *tmp;
775
776 TAILQ_REMOVE(&lun->l_target->t_luns, lun, l_next);
777
778 TAILQ_FOREACH_SAFE(lo, &lun->l_options, lo_next, tmp)
779 lun_option_delete(lo);
780 free(lun->l_backend);
781 free(lun->l_device_id);
782 free(lun->l_path);
783 free(lun->l_serial);
784 free(lun);
785}
786
787struct lun *
788lun_find(struct target *targ, int lun_id)
789{
790 struct lun *lun;
791
792 TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
793 if (lun->l_lun == lun_id)
794 return (lun);
795 }
796
797 return (NULL);
798}
799
800void
801lun_set_backend(struct lun *lun, const char *value)
802{
803 free(lun->l_backend);
804 lun->l_backend = checked_strdup(value);
805}
806
807void
808lun_set_blocksize(struct lun *lun, size_t value)
809{
810
811 lun->l_blocksize = value;
812}
813
814void
815lun_set_device_id(struct lun *lun, const char *value)
816{
817 free(lun->l_device_id);
818 lun->l_device_id = checked_strdup(value);
819}
820
821void
822lun_set_path(struct lun *lun, const char *value)
823{
824 free(lun->l_path);
825 lun->l_path = checked_strdup(value);
826}
827
828void
829lun_set_serial(struct lun *lun, const char *value)
830{
831 free(lun->l_serial);
832 lun->l_serial = checked_strdup(value);
833}
834
835void
836lun_set_size(struct lun *lun, size_t value)
837{
838
839 lun->l_size = value;
840}
841
842void
843lun_set_ctl_lun(struct lun *lun, uint32_t value)
844{
845
846 lun->l_ctl_lun = value;
847}
848
849struct lun_option *
850lun_option_new(struct lun *lun, const char *name, const char *value)
851{
852 struct lun_option *lo;
853
854 lo = lun_option_find(lun, name);
855 if (lo != NULL) {
856 log_warnx("duplicated lun option %s for lun %d, target \"%s\"",
| 757 return (NULL);
758 }
759
760 lun = calloc(1, sizeof(*lun));
761 if (lun == NULL)
762 log_err(1, "calloc");
763 lun->l_lun = lun_id;
764 TAILQ_INIT(&lun->l_options);
765 lun->l_target = targ;
766 TAILQ_INSERT_TAIL(&targ->t_luns, lun, l_next);
767
768 return (lun);
769}
770
771void
772lun_delete(struct lun *lun)
773{
774 struct lun_option *lo, *tmp;
775
776 TAILQ_REMOVE(&lun->l_target->t_luns, lun, l_next);
777
778 TAILQ_FOREACH_SAFE(lo, &lun->l_options, lo_next, tmp)
779 lun_option_delete(lo);
780 free(lun->l_backend);
781 free(lun->l_device_id);
782 free(lun->l_path);
783 free(lun->l_serial);
784 free(lun);
785}
786
787struct lun *
788lun_find(struct target *targ, int lun_id)
789{
790 struct lun *lun;
791
792 TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
793 if (lun->l_lun == lun_id)
794 return (lun);
795 }
796
797 return (NULL);
798}
799
800void
801lun_set_backend(struct lun *lun, const char *value)
802{
803 free(lun->l_backend);
804 lun->l_backend = checked_strdup(value);
805}
806
807void
808lun_set_blocksize(struct lun *lun, size_t value)
809{
810
811 lun->l_blocksize = value;
812}
813
814void
815lun_set_device_id(struct lun *lun, const char *value)
816{
817 free(lun->l_device_id);
818 lun->l_device_id = checked_strdup(value);
819}
820
821void
822lun_set_path(struct lun *lun, const char *value)
823{
824 free(lun->l_path);
825 lun->l_path = checked_strdup(value);
826}
827
828void
829lun_set_serial(struct lun *lun, const char *value)
830{
831 free(lun->l_serial);
832 lun->l_serial = checked_strdup(value);
833}
834
835void
836lun_set_size(struct lun *lun, size_t value)
837{
838
839 lun->l_size = value;
840}
841
842void
843lun_set_ctl_lun(struct lun *lun, uint32_t value)
844{
845
846 lun->l_ctl_lun = value;
847}
848
849struct lun_option *
850lun_option_new(struct lun *lun, const char *name, const char *value)
851{
852 struct lun_option *lo;
853
854 lo = lun_option_find(lun, name);
855 if (lo != NULL) {
856 log_warnx("duplicated lun option %s for lun %d, target \"%s\"",
|
857 name, lun->l_lun, lun->l_target->t_iqn);
| 857 name, lun->l_lun, lun->l_target->t_name);
|
858 return (NULL);
859 }
860
861 lo = calloc(1, sizeof(*lo));
862 if (lo == NULL)
863 log_err(1, "calloc");
864 lo->lo_name = checked_strdup(name);
865 lo->lo_value = checked_strdup(value);
866 lo->lo_lun = lun;
867 TAILQ_INSERT_TAIL(&lun->l_options, lo, lo_next);
868
869 return (lo);
870}
871
872void
873lun_option_delete(struct lun_option *lo)
874{
875
876 TAILQ_REMOVE(&lo->lo_lun->l_options, lo, lo_next);
877
878 free(lo->lo_name);
879 free(lo->lo_value);
880 free(lo);
881}
882
883struct lun_option *
884lun_option_find(struct lun *lun, const char *name)
885{
886 struct lun_option *lo;
887
888 TAILQ_FOREACH(lo, &lun->l_options, lo_next) {
889 if (strcmp(lo->lo_name, name) == 0)
890 return (lo);
891 }
892
893 return (NULL);
894}
895
896void
897lun_option_set(struct lun_option *lo, const char *value)
898{
899
900 free(lo->lo_value);
901 lo->lo_value = checked_strdup(value);
902}
903
904static struct connection *
905connection_new(struct portal *portal, int fd, const char *host)
906{
907 struct connection *conn;
908
909 conn = calloc(1, sizeof(*conn));
910 if (conn == NULL)
911 log_err(1, "calloc");
912 conn->conn_portal = portal;
913 conn->conn_socket = fd;
914 conn->conn_initiator_addr = checked_strdup(host);
915
916 /*
917 * Default values, from RFC 3720, section 12.
918 */
919 conn->conn_max_data_segment_length = 8192;
920 conn->conn_max_burst_length = 262144;
921 conn->conn_immediate_data = true;
922
923 return (conn);
924}
925
926#if 0
927static void
928conf_print(struct conf *conf)
929{
930 struct auth_group *ag;
931 struct auth *auth;
932 struct auth_name *auth_name;
933 struct auth_portal *auth_portal;
934 struct portal_group *pg;
935 struct portal *portal;
936 struct target *targ;
937 struct lun *lun;
938 struct lun_option *lo;
939
940 TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
941 fprintf(stderr, "auth-group %s {\n", ag->ag_name);
942 TAILQ_FOREACH(auth, &ag->ag_auths, a_next)
943 fprintf(stderr, "\t chap-mutual %s %s %s %s\n",
944 auth->a_user, auth->a_secret,
945 auth->a_mutual_user, auth->a_mutual_secret);
946 TAILQ_FOREACH(auth_name, &ag->ag_names, an_next)
947 fprintf(stderr, "\t initiator-name %s\n",
948 auth_name->an_initator_name);
949 TAILQ_FOREACH(auth_portal, &ag->ag_portals, an_next)
950 fprintf(stderr, "\t initiator-portal %s\n",
951 auth_portal->an_initator_portal);
952 fprintf(stderr, "}\n");
953 }
954 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
955 fprintf(stderr, "portal-group %s {\n", pg->pg_name);
956 TAILQ_FOREACH(portal, &pg->pg_portals, p_next)
957 fprintf(stderr, "\t listen %s\n", portal->p_listen);
958 fprintf(stderr, "}\n");
959 }
960 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
| 858 return (NULL);
859 }
860
861 lo = calloc(1, sizeof(*lo));
862 if (lo == NULL)
863 log_err(1, "calloc");
864 lo->lo_name = checked_strdup(name);
865 lo->lo_value = checked_strdup(value);
866 lo->lo_lun = lun;
867 TAILQ_INSERT_TAIL(&lun->l_options, lo, lo_next);
868
869 return (lo);
870}
871
872void
873lun_option_delete(struct lun_option *lo)
874{
875
876 TAILQ_REMOVE(&lo->lo_lun->l_options, lo, lo_next);
877
878 free(lo->lo_name);
879 free(lo->lo_value);
880 free(lo);
881}
882
883struct lun_option *
884lun_option_find(struct lun *lun, const char *name)
885{
886 struct lun_option *lo;
887
888 TAILQ_FOREACH(lo, &lun->l_options, lo_next) {
889 if (strcmp(lo->lo_name, name) == 0)
890 return (lo);
891 }
892
893 return (NULL);
894}
895
896void
897lun_option_set(struct lun_option *lo, const char *value)
898{
899
900 free(lo->lo_value);
901 lo->lo_value = checked_strdup(value);
902}
903
904static struct connection *
905connection_new(struct portal *portal, int fd, const char *host)
906{
907 struct connection *conn;
908
909 conn = calloc(1, sizeof(*conn));
910 if (conn == NULL)
911 log_err(1, "calloc");
912 conn->conn_portal = portal;
913 conn->conn_socket = fd;
914 conn->conn_initiator_addr = checked_strdup(host);
915
916 /*
917 * Default values, from RFC 3720, section 12.
918 */
919 conn->conn_max_data_segment_length = 8192;
920 conn->conn_max_burst_length = 262144;
921 conn->conn_immediate_data = true;
922
923 return (conn);
924}
925
926#if 0
927static void
928conf_print(struct conf *conf)
929{
930 struct auth_group *ag;
931 struct auth *auth;
932 struct auth_name *auth_name;
933 struct auth_portal *auth_portal;
934 struct portal_group *pg;
935 struct portal *portal;
936 struct target *targ;
937 struct lun *lun;
938 struct lun_option *lo;
939
940 TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
941 fprintf(stderr, "auth-group %s {\n", ag->ag_name);
942 TAILQ_FOREACH(auth, &ag->ag_auths, a_next)
943 fprintf(stderr, "\t chap-mutual %s %s %s %s\n",
944 auth->a_user, auth->a_secret,
945 auth->a_mutual_user, auth->a_mutual_secret);
946 TAILQ_FOREACH(auth_name, &ag->ag_names, an_next)
947 fprintf(stderr, "\t initiator-name %s\n",
948 auth_name->an_initator_name);
949 TAILQ_FOREACH(auth_portal, &ag->ag_portals, an_next)
950 fprintf(stderr, "\t initiator-portal %s\n",
951 auth_portal->an_initator_portal);
952 fprintf(stderr, "}\n");
953 }
954 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
955 fprintf(stderr, "portal-group %s {\n", pg->pg_name);
956 TAILQ_FOREACH(portal, &pg->pg_portals, p_next)
957 fprintf(stderr, "\t listen %s\n", portal->p_listen);
958 fprintf(stderr, "}\n");
959 }
960 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
961 fprintf(stderr, "target %s {\n", targ->t_iqn);
| 961 fprintf(stderr, "target %s {\n", targ->t_name);
|
962 if (targ->t_alias != NULL)
963 fprintf(stderr, "\t alias %s\n", targ->t_alias);
964 TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
965 fprintf(stderr, "\tlun %d {\n", lun->l_lun);
966 fprintf(stderr, "\t\tpath %s\n", lun->l_path);
967 TAILQ_FOREACH(lo, &lun->l_options, lo_next)
968 fprintf(stderr, "\t\toption %s %s\n",
969 lo->lo_name, lo->lo_value);
970 fprintf(stderr, "\t}\n");
971 }
972 fprintf(stderr, "}\n");
973 }
974}
975#endif
976
977static int
978conf_verify_lun(struct lun *lun)
979{
980 const struct lun *lun2;
981 const struct target *targ2;
982
983 if (lun->l_backend == NULL)
984 lun_set_backend(lun, "block");
985 if (strcmp(lun->l_backend, "block") == 0) {
986 if (lun->l_path == NULL) {
987 log_warnx("missing path for lun %d, target \"%s\"",
| 962 if (targ->t_alias != NULL)
963 fprintf(stderr, "\t alias %s\n", targ->t_alias);
964 TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
965 fprintf(stderr, "\tlun %d {\n", lun->l_lun);
966 fprintf(stderr, "\t\tpath %s\n", lun->l_path);
967 TAILQ_FOREACH(lo, &lun->l_options, lo_next)
968 fprintf(stderr, "\t\toption %s %s\n",
969 lo->lo_name, lo->lo_value);
970 fprintf(stderr, "\t}\n");
971 }
972 fprintf(stderr, "}\n");
973 }
974}
975#endif
976
977static int
978conf_verify_lun(struct lun *lun)
979{
980 const struct lun *lun2;
981 const struct target *targ2;
982
983 if (lun->l_backend == NULL)
984 lun_set_backend(lun, "block");
985 if (strcmp(lun->l_backend, "block") == 0) {
986 if (lun->l_path == NULL) {
987 log_warnx("missing path for lun %d, target \"%s\"",
|
988 lun->l_lun, lun->l_target->t_iqn);
| 988 lun->l_lun, lun->l_target->t_name);
|
989 return (1);
990 }
991 } else if (strcmp(lun->l_backend, "ramdisk") == 0) {
992 if (lun->l_size == 0) {
993 log_warnx("missing size for ramdisk-backed lun %d, "
| 989 return (1);
990 }
991 } else if (strcmp(lun->l_backend, "ramdisk") == 0) {
992 if (lun->l_size == 0) {
993 log_warnx("missing size for ramdisk-backed lun %d, "
|
994 "target \"%s\"", lun->l_lun, lun->l_target->t_iqn);
| 994 "target \"%s\"", lun->l_lun, lun->l_target->t_name);
|
995 return (1);
996 }
997 if (lun->l_path != NULL) {
998 log_warnx("path must not be specified "
999 "for ramdisk-backed lun %d, target \"%s\"",
| 995 return (1);
996 }
997 if (lun->l_path != NULL) {
998 log_warnx("path must not be specified "
999 "for ramdisk-backed lun %d, target \"%s\"",
|
1000 lun->l_lun, lun->l_target->t_iqn);
| 1000 lun->l_lun, lun->l_target->t_name);
|
1001 return (1);
1002 }
1003 }
1004 if (lun->l_lun < 0 || lun->l_lun > 255) {
1005 log_warnx("invalid lun number for lun %d, target \"%s\"; "
1006 "must be between 0 and 255", lun->l_lun,
| 1001 return (1);
1002 }
1003 }
1004 if (lun->l_lun < 0 || lun->l_lun > 255) {
1005 log_warnx("invalid lun number for lun %d, target \"%s\"; "
1006 "must be between 0 and 255", lun->l_lun,
|
1007 lun->l_target->t_iqn);
| 1007 lun->l_target->t_name);
|
1008 return (1);
1009 }
1010 if (lun->l_blocksize == 0) {
1011 lun_set_blocksize(lun, DEFAULT_BLOCKSIZE);
1012 } else if (lun->l_blocksize < 0) {
1013 log_warnx("invalid blocksize for lun %d, target \"%s\"; "
| 1008 return (1);
1009 }
1010 if (lun->l_blocksize == 0) {
1011 lun_set_blocksize(lun, DEFAULT_BLOCKSIZE);
1012 } else if (lun->l_blocksize < 0) {
1013 log_warnx("invalid blocksize for lun %d, target \"%s\"; "
|
1014 "must be larger than 0", lun->l_lun, lun->l_target->t_iqn);
| 1014 "must be larger than 0", lun->l_lun, lun->l_target->t_name);
|
1015 return (1);
1016 }
1017 if (lun->l_size != 0 && lun->l_size % lun->l_blocksize != 0) {
1018 log_warnx("invalid size for lun %d, target \"%s\"; "
1019 "must be multiple of blocksize", lun->l_lun,
| 1015 return (1);
1016 }
1017 if (lun->l_size != 0 && lun->l_size % lun->l_blocksize != 0) {
1018 log_warnx("invalid size for lun %d, target \"%s\"; "
1019 "must be multiple of blocksize", lun->l_lun,
|
1020 lun->l_target->t_iqn);
| 1020 lun->l_target->t_name);
|
1021 return (1);
1022 }
1023 TAILQ_FOREACH(targ2, &lun->l_target->t_conf->conf_targets, t_next) {
1024 TAILQ_FOREACH(lun2, &targ2->t_luns, l_next) {
1025 if (lun == lun2)
1026 continue;
1027 if (lun->l_path != NULL && lun2->l_path != NULL &&
1028 strcmp(lun->l_path, lun2->l_path) == 0) {
1029 log_debugx("WARNING: path \"%s\" duplicated "
1030 "between lun %d, target \"%s\", and "
1031 "lun %d, target \"%s\"", lun->l_path,
| 1021 return (1);
1022 }
1023 TAILQ_FOREACH(targ2, &lun->l_target->t_conf->conf_targets, t_next) {
1024 TAILQ_FOREACH(lun2, &targ2->t_luns, l_next) {
1025 if (lun == lun2)
1026 continue;
1027 if (lun->l_path != NULL && lun2->l_path != NULL &&
1028 strcmp(lun->l_path, lun2->l_path) == 0) {
1029 log_debugx("WARNING: path \"%s\" duplicated "
1030 "between lun %d, target \"%s\", and "
1031 "lun %d, target \"%s\"", lun->l_path,
|
1032 lun->l_lun, lun->l_target->t_iqn,
1033 lun2->l_lun, lun2->l_target->t_iqn);
| 1032 lun->l_lun, lun->l_target->t_name,
1033 lun2->l_lun, lun2->l_target->t_name);
|
1034 }
1035 }
1036 }
1037
1038 return (0);
1039}
1040
1041int
1042conf_verify(struct conf *conf)
1043{
1044 struct auth_group *ag;
1045 struct portal_group *pg;
1046 struct target *targ;
1047 struct lun *lun;
1048 bool found_lun0;
1049 int error;
1050
1051 if (conf->conf_pidfile_path == NULL)
1052 conf->conf_pidfile_path = checked_strdup(DEFAULT_PIDFILE);
1053
1054 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
1055 if (targ->t_auth_group == NULL) {
1056 log_warnx("missing authentication for target \"%s\"; "
1057 "must specify either \"auth-group\", \"chap\", "
| 1034 }
1035 }
1036 }
1037
1038 return (0);
1039}
1040
1041int
1042conf_verify(struct conf *conf)
1043{
1044 struct auth_group *ag;
1045 struct portal_group *pg;
1046 struct target *targ;
1047 struct lun *lun;
1048 bool found_lun0;
1049 int error;
1050
1051 if (conf->conf_pidfile_path == NULL)
1052 conf->conf_pidfile_path = checked_strdup(DEFAULT_PIDFILE);
1053
1054 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
1055 if (targ->t_auth_group == NULL) {
1056 log_warnx("missing authentication for target \"%s\"; "
1057 "must specify either \"auth-group\", \"chap\", "
|
1058 "or \"chap-mutual\"", targ->t_iqn);
| 1058 "or \"chap-mutual\"", targ->t_name);
|
1059 return (1);
1060 }
1061 if (targ->t_portal_group == NULL) {
1062 targ->t_portal_group = portal_group_find(conf,
1063 "default");
1064 assert(targ->t_portal_group != NULL);
1065 }
1066 found_lun0 = false;
1067 TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
1068 error = conf_verify_lun(lun);
1069 if (error != 0)
1070 return (error);
1071 if (lun->l_lun == 0)
1072 found_lun0 = true;
1073 }
1074 if (!found_lun0) {
1075 log_warnx("mandatory LUN 0 not configured "
| 1059 return (1);
1060 }
1061 if (targ->t_portal_group == NULL) {
1062 targ->t_portal_group = portal_group_find(conf,
1063 "default");
1064 assert(targ->t_portal_group != NULL);
1065 }
1066 found_lun0 = false;
1067 TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
1068 error = conf_verify_lun(lun);
1069 if (error != 0)
1070 return (error);
1071 if (lun->l_lun == 0)
1072 found_lun0 = true;
1073 }
1074 if (!found_lun0) {
1075 log_warnx("mandatory LUN 0 not configured "
|
1076 "for target \"%s\"", targ->t_iqn);
| 1076 "for target \"%s\"", targ->t_name);
|
1077 return (1);
1078 }
1079 }
1080 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
1081 assert(pg->pg_name != NULL);
1082 if (pg->pg_discovery_auth_group == NULL) {
1083 pg->pg_discovery_auth_group =
1084 auth_group_find(conf, "no-access");
1085 assert(pg->pg_discovery_auth_group != NULL);
1086 }
1087
1088 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
1089 if (targ->t_portal_group == pg)
1090 break;
1091 }
1092 if (targ == NULL) {
1093 if (strcmp(pg->pg_name, "default") != 0)
1094 log_warnx("portal-group \"%s\" not assigned "
1095 "to any target", pg->pg_name);
1096 pg->pg_unassigned = true;
1097 } else
1098 pg->pg_unassigned = false;
1099 }
1100 TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
1101 if (ag->ag_name == NULL)
1102 assert(ag->ag_target != NULL);
1103 else
1104 assert(ag->ag_target == NULL);
1105
1106 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
1107 if (targ->t_auth_group == ag)
1108 break;
1109 }
1110 if (targ == NULL && ag->ag_name != NULL &&
1111 strcmp(ag->ag_name, "no-authentication") != 0 &&
1112 strcmp(ag->ag_name, "no-access") != 0) {
1113 log_warnx("auth-group \"%s\" not assigned "
1114 "to any target", ag->ag_name);
1115 }
1116 }
1117
1118 return (0);
1119}
1120
1121static int
1122conf_apply(struct conf *oldconf, struct conf *newconf)
1123{
1124 struct target *oldtarg, *newtarg, *tmptarg;
1125 struct lun *oldlun, *newlun, *tmplun;
1126 struct portal_group *oldpg, *newpg;
1127 struct portal *oldp, *newp;
1128 pid_t otherpid;
1129 int changed, cumulated_error = 0, error;
1130#ifndef ICL_KERNEL_PROXY
1131 int one = 1;
1132#endif
1133
1134 if (oldconf->conf_debug != newconf->conf_debug) {
1135 log_debugx("changing debug level to %d", newconf->conf_debug);
1136 log_init(newconf->conf_debug);
1137 }
1138
1139 if (oldconf->conf_pidfh != NULL) {
1140 assert(oldconf->conf_pidfile_path != NULL);
1141 if (newconf->conf_pidfile_path != NULL &&
1142 strcmp(oldconf->conf_pidfile_path,
1143 newconf->conf_pidfile_path) == 0) {
1144 newconf->conf_pidfh = oldconf->conf_pidfh;
1145 oldconf->conf_pidfh = NULL;
1146 } else {
1147 log_debugx("removing pidfile %s",
1148 oldconf->conf_pidfile_path);
1149 pidfile_remove(oldconf->conf_pidfh);
1150 oldconf->conf_pidfh = NULL;
1151 }
1152 }
1153
1154 if (newconf->conf_pidfh == NULL && newconf->conf_pidfile_path != NULL) {
1155 log_debugx("opening pidfile %s", newconf->conf_pidfile_path);
1156 newconf->conf_pidfh =
1157 pidfile_open(newconf->conf_pidfile_path, 0600, &otherpid);
1158 if (newconf->conf_pidfh == NULL) {
1159 if (errno == EEXIST)
1160 log_errx(1, "daemon already running, pid: %jd.",
1161 (intmax_t)otherpid);
1162 log_err(1, "cannot open or create pidfile \"%s\"",
1163 newconf->conf_pidfile_path);
1164 }
1165 }
1166
1167 TAILQ_FOREACH_SAFE(oldtarg, &oldconf->conf_targets, t_next, tmptarg) {
1168 /*
1169 * First, remove any targets present in the old configuration
1170 * and missing in the new one.
1171 */
| 1077 return (1);
1078 }
1079 }
1080 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
1081 assert(pg->pg_name != NULL);
1082 if (pg->pg_discovery_auth_group == NULL) {
1083 pg->pg_discovery_auth_group =
1084 auth_group_find(conf, "no-access");
1085 assert(pg->pg_discovery_auth_group != NULL);
1086 }
1087
1088 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
1089 if (targ->t_portal_group == pg)
1090 break;
1091 }
1092 if (targ == NULL) {
1093 if (strcmp(pg->pg_name, "default") != 0)
1094 log_warnx("portal-group \"%s\" not assigned "
1095 "to any target", pg->pg_name);
1096 pg->pg_unassigned = true;
1097 } else
1098 pg->pg_unassigned = false;
1099 }
1100 TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
1101 if (ag->ag_name == NULL)
1102 assert(ag->ag_target != NULL);
1103 else
1104 assert(ag->ag_target == NULL);
1105
1106 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
1107 if (targ->t_auth_group == ag)
1108 break;
1109 }
1110 if (targ == NULL && ag->ag_name != NULL &&
1111 strcmp(ag->ag_name, "no-authentication") != 0 &&
1112 strcmp(ag->ag_name, "no-access") != 0) {
1113 log_warnx("auth-group \"%s\" not assigned "
1114 "to any target", ag->ag_name);
1115 }
1116 }
1117
1118 return (0);
1119}
1120
1121static int
1122conf_apply(struct conf *oldconf, struct conf *newconf)
1123{
1124 struct target *oldtarg, *newtarg, *tmptarg;
1125 struct lun *oldlun, *newlun, *tmplun;
1126 struct portal_group *oldpg, *newpg;
1127 struct portal *oldp, *newp;
1128 pid_t otherpid;
1129 int changed, cumulated_error = 0, error;
1130#ifndef ICL_KERNEL_PROXY
1131 int one = 1;
1132#endif
1133
1134 if (oldconf->conf_debug != newconf->conf_debug) {
1135 log_debugx("changing debug level to %d", newconf->conf_debug);
1136 log_init(newconf->conf_debug);
1137 }
1138
1139 if (oldconf->conf_pidfh != NULL) {
1140 assert(oldconf->conf_pidfile_path != NULL);
1141 if (newconf->conf_pidfile_path != NULL &&
1142 strcmp(oldconf->conf_pidfile_path,
1143 newconf->conf_pidfile_path) == 0) {
1144 newconf->conf_pidfh = oldconf->conf_pidfh;
1145 oldconf->conf_pidfh = NULL;
1146 } else {
1147 log_debugx("removing pidfile %s",
1148 oldconf->conf_pidfile_path);
1149 pidfile_remove(oldconf->conf_pidfh);
1150 oldconf->conf_pidfh = NULL;
1151 }
1152 }
1153
1154 if (newconf->conf_pidfh == NULL && newconf->conf_pidfile_path != NULL) {
1155 log_debugx("opening pidfile %s", newconf->conf_pidfile_path);
1156 newconf->conf_pidfh =
1157 pidfile_open(newconf->conf_pidfile_path, 0600, &otherpid);
1158 if (newconf->conf_pidfh == NULL) {
1159 if (errno == EEXIST)
1160 log_errx(1, "daemon already running, pid: %jd.",
1161 (intmax_t)otherpid);
1162 log_err(1, "cannot open or create pidfile \"%s\"",
1163 newconf->conf_pidfile_path);
1164 }
1165 }
1166
1167 TAILQ_FOREACH_SAFE(oldtarg, &oldconf->conf_targets, t_next, tmptarg) {
1168 /*
1169 * First, remove any targets present in the old configuration
1170 * and missing in the new one.
1171 */
|
1172 newtarg = target_find(newconf, oldtarg->t_iqn);
| 1172 newtarg = target_find(newconf, oldtarg->t_name);
|
1173 if (newtarg == NULL) {
1174 TAILQ_FOREACH_SAFE(oldlun, &oldtarg->t_luns, l_next,
1175 tmplun) {
1176 log_debugx("target %s not found in new "
1177 "configuration; removing its lun %d, "
1178 "backed by CTL lun %d",
| 1173 if (newtarg == NULL) {
1174 TAILQ_FOREACH_SAFE(oldlun, &oldtarg->t_luns, l_next,
1175 tmplun) {
1176 log_debugx("target %s not found in new "
1177 "configuration; removing its lun %d, "
1178 "backed by CTL lun %d",
|
1179 oldtarg->t_iqn, oldlun->l_lun,
| 1179 oldtarg->t_name, oldlun->l_lun,
|
1180 oldlun->l_ctl_lun);
1181 error = kernel_lun_remove(oldlun);
1182 if (error != 0) {
1183 log_warnx("failed to remove lun %d, "
1184 "target %s, CTL lun %d",
| 1180 oldlun->l_ctl_lun);
1181 error = kernel_lun_remove(oldlun);
1182 if (error != 0) {
1183 log_warnx("failed to remove lun %d, "
1184 "target %s, CTL lun %d",
|
1185 oldlun->l_lun, oldtarg->t_iqn,
| 1185 oldlun->l_lun, oldtarg->t_name,
|
1186 oldlun->l_ctl_lun);
1187 cumulated_error++;
1188 }
1189 lun_delete(oldlun);
1190 }
1191 target_delete(oldtarg);
1192 continue;
1193 }
1194
1195 /*
1196 * Second, remove any LUNs present in the old target
1197 * and missing in the new one.
1198 */
1199 TAILQ_FOREACH_SAFE(oldlun, &oldtarg->t_luns, l_next, tmplun) {
1200 newlun = lun_find(newtarg, oldlun->l_lun);
1201 if (newlun == NULL) {
1202 log_debugx("lun %d, target %s, CTL lun %d "
1203 "not found in new configuration; "
| 1186 oldlun->l_ctl_lun);
1187 cumulated_error++;
1188 }
1189 lun_delete(oldlun);
1190 }
1191 target_delete(oldtarg);
1192 continue;
1193 }
1194
1195 /*
1196 * Second, remove any LUNs present in the old target
1197 * and missing in the new one.
1198 */
1199 TAILQ_FOREACH_SAFE(oldlun, &oldtarg->t_luns, l_next, tmplun) {
1200 newlun = lun_find(newtarg, oldlun->l_lun);
1201 if (newlun == NULL) {
1202 log_debugx("lun %d, target %s, CTL lun %d "
1203 "not found in new configuration; "
|
1204 "removing", oldlun->l_lun, oldtarg->t_iqn,
| 1204 "removing", oldlun->l_lun, oldtarg->t_name,
|
1205 oldlun->l_ctl_lun);
1206 error = kernel_lun_remove(oldlun);
1207 if (error != 0) {
1208 log_warnx("failed to remove lun %d, "
1209 "target %s, CTL lun %d",
| 1205 oldlun->l_ctl_lun);
1206 error = kernel_lun_remove(oldlun);
1207 if (error != 0) {
1208 log_warnx("failed to remove lun %d, "
1209 "target %s, CTL lun %d",
|
1210 oldlun->l_lun, oldtarg->t_iqn,
| 1210 oldlun->l_lun, oldtarg->t_name,
|
1211 oldlun->l_ctl_lun);
1212 cumulated_error++;
1213 }
1214 lun_delete(oldlun);
1215 continue;
1216 }
1217
1218 /*
1219 * Also remove the LUNs changed by more than size.
1220 */
1221 changed = 0;
1222 assert(oldlun->l_backend != NULL);
1223 assert(newlun->l_backend != NULL);
1224 if (strcmp(newlun->l_backend, oldlun->l_backend) != 0) {
1225 log_debugx("backend for lun %d, target %s, "
1226 "CTL lun %d changed; removing",
| 1211 oldlun->l_ctl_lun);
1212 cumulated_error++;
1213 }
1214 lun_delete(oldlun);
1215 continue;
1216 }
1217
1218 /*
1219 * Also remove the LUNs changed by more than size.
1220 */
1221 changed = 0;
1222 assert(oldlun->l_backend != NULL);
1223 assert(newlun->l_backend != NULL);
1224 if (strcmp(newlun->l_backend, oldlun->l_backend) != 0) {
1225 log_debugx("backend for lun %d, target %s, "
1226 "CTL lun %d changed; removing",
|
1227 oldlun->l_lun, oldtarg->t_iqn,
| 1227 oldlun->l_lun, oldtarg->t_name,
|
1228 oldlun->l_ctl_lun);
1229 changed = 1;
1230 }
1231 if (oldlun->l_blocksize != newlun->l_blocksize) {
1232 log_debugx("blocksize for lun %d, target %s, "
1233 "CTL lun %d changed; removing",
| 1228 oldlun->l_ctl_lun);
1229 changed = 1;
1230 }
1231 if (oldlun->l_blocksize != newlun->l_blocksize) {
1232 log_debugx("blocksize for lun %d, target %s, "
1233 "CTL lun %d changed; removing",
|
1234 oldlun->l_lun, oldtarg->t_iqn,
| 1234 oldlun->l_lun, oldtarg->t_name,
|
1235 oldlun->l_ctl_lun);
1236 changed = 1;
1237 }
1238 if (newlun->l_device_id != NULL &&
1239 (oldlun->l_device_id == NULL ||
1240 strcmp(oldlun->l_device_id, newlun->l_device_id) !=
1241 0)) {
1242 log_debugx("device-id for lun %d, target %s, "
1243 "CTL lun %d changed; removing",
| 1235 oldlun->l_ctl_lun);
1236 changed = 1;
1237 }
1238 if (newlun->l_device_id != NULL &&
1239 (oldlun->l_device_id == NULL ||
1240 strcmp(oldlun->l_device_id, newlun->l_device_id) !=
1241 0)) {
1242 log_debugx("device-id for lun %d, target %s, "
1243 "CTL lun %d changed; removing",
|
1244 oldlun->l_lun, oldtarg->t_iqn,
| 1244 oldlun->l_lun, oldtarg->t_name,
|
1245 oldlun->l_ctl_lun);
1246 changed = 1;
1247 }
1248 if (newlun->l_path != NULL &&
1249 (oldlun->l_path == NULL ||
1250 strcmp(oldlun->l_path, newlun->l_path) != 0)) {
1251 log_debugx("path for lun %d, target %s, "
1252 "CTL lun %d, changed; removing",
| 1245 oldlun->l_ctl_lun);
1246 changed = 1;
1247 }
1248 if (newlun->l_path != NULL &&
1249 (oldlun->l_path == NULL ||
1250 strcmp(oldlun->l_path, newlun->l_path) != 0)) {
1251 log_debugx("path for lun %d, target %s, "
1252 "CTL lun %d, changed; removing",
|
1253 oldlun->l_lun, oldtarg->t_iqn,
| 1253 oldlun->l_lun, oldtarg->t_name,
|
1254 oldlun->l_ctl_lun);
1255 changed = 1;
1256 }
1257 if (newlun->l_serial != NULL &&
1258 (oldlun->l_serial == NULL ||
1259 strcmp(oldlun->l_serial, newlun->l_serial) != 0)) {
1260 log_debugx("serial for lun %d, target %s, "
1261 "CTL lun %d changed; removing",
| 1254 oldlun->l_ctl_lun);
1255 changed = 1;
1256 }
1257 if (newlun->l_serial != NULL &&
1258 (oldlun->l_serial == NULL ||
1259 strcmp(oldlun->l_serial, newlun->l_serial) != 0)) {
1260 log_debugx("serial for lun %d, target %s, "
1261 "CTL lun %d changed; removing",
|
1262 oldlun->l_lun, oldtarg->t_iqn,
| 1262 oldlun->l_lun, oldtarg->t_name,
|
1263 oldlun->l_ctl_lun);
1264 changed = 1;
1265 }
1266 if (changed) {
1267 error = kernel_lun_remove(oldlun);
1268 if (error != 0) {
1269 log_warnx("failed to remove lun %d, "
1270 "target %s, CTL lun %d",
| 1263 oldlun->l_ctl_lun);
1264 changed = 1;
1265 }
1266 if (changed) {
1267 error = kernel_lun_remove(oldlun);
1268 if (error != 0) {
1269 log_warnx("failed to remove lun %d, "
1270 "target %s, CTL lun %d",
|
1271 oldlun->l_lun, oldtarg->t_iqn,
| 1271 oldlun->l_lun, oldtarg->t_name,
|
1272 oldlun->l_ctl_lun);
1273 cumulated_error++;
1274 }
1275 lun_delete(oldlun);
1276 continue;
1277 }
1278
1279 lun_set_ctl_lun(newlun, oldlun->l_ctl_lun);
1280 }
1281 }
1282
1283 /*
1284 * Now add new targets or modify existing ones.
1285 */
1286 TAILQ_FOREACH(newtarg, &newconf->conf_targets, t_next) {
| 1272 oldlun->l_ctl_lun);
1273 cumulated_error++;
1274 }
1275 lun_delete(oldlun);
1276 continue;
1277 }
1278
1279 lun_set_ctl_lun(newlun, oldlun->l_ctl_lun);
1280 }
1281 }
1282
1283 /*
1284 * Now add new targets or modify existing ones.
1285 */
1286 TAILQ_FOREACH(newtarg, &newconf->conf_targets, t_next) {
|
1287 oldtarg = target_find(oldconf, newtarg->t_iqn);
| 1287 oldtarg = target_find(oldconf, newtarg->t_name);
|
1288
1289 TAILQ_FOREACH(newlun, &newtarg->t_luns, l_next) {
1290 if (oldtarg != NULL) {
1291 oldlun = lun_find(oldtarg, newlun->l_lun);
1292 if (oldlun != NULL) {
1293 if (newlun->l_size != oldlun->l_size) {
1294 log_debugx("resizing lun %d, "
1295 "target %s, CTL lun %d",
1296 newlun->l_lun,
| 1288
1289 TAILQ_FOREACH(newlun, &newtarg->t_luns, l_next) {
1290 if (oldtarg != NULL) {
1291 oldlun = lun_find(oldtarg, newlun->l_lun);
1292 if (oldlun != NULL) {
1293 if (newlun->l_size != oldlun->l_size) {
1294 log_debugx("resizing lun %d, "
1295 "target %s, CTL lun %d",
1296 newlun->l_lun,
|
1297 newtarg->t_iqn,
| 1297 newtarg->t_name,
|
1298 newlun->l_ctl_lun);
1299 error =
1300 kernel_lun_resize(newlun);
1301 if (error != 0) {
1302 log_warnx("failed to "
1303 "resize lun %d, "
1304 "target %s, "
1305 "CTL lun %d",
1306 newlun->l_lun,
| 1298 newlun->l_ctl_lun);
1299 error =
1300 kernel_lun_resize(newlun);
1301 if (error != 0) {
1302 log_warnx("failed to "
1303 "resize lun %d, "
1304 "target %s, "
1305 "CTL lun %d",
1306 newlun->l_lun,
|
1307 newtarg->t_iqn,
| 1307 newtarg->t_name,
|
1308 newlun->l_lun);
1309 cumulated_error++;
1310 }
1311 }
1312 continue;
1313 }
1314 }
1315 log_debugx("adding lun %d, target %s",
| 1308 newlun->l_lun);
1309 cumulated_error++;
1310 }
1311 }
1312 continue;
1313 }
1314 }
1315 log_debugx("adding lun %d, target %s",
|
1316 newlun->l_lun, newtarg->t_iqn);
| 1316 newlun->l_lun, newtarg->t_name);
|
1317 error = kernel_lun_add(newlun);
1318 if (error != 0) {
1319 log_warnx("failed to add lun %d, target %s",
| 1317 error = kernel_lun_add(newlun);
1318 if (error != 0) {
1319 log_warnx("failed to add lun %d, target %s",
|
1320 newlun->l_lun, newtarg->t_iqn);
| 1320 newlun->l_lun, newtarg->t_name);
|
1321 cumulated_error++;
1322 }
1323 }
1324 }
1325
1326 /*
1327 * Go through the new portals, opening the sockets as neccessary.
1328 */
1329 TAILQ_FOREACH(newpg, &newconf->conf_portal_groups, pg_next) {
1330 if (newpg->pg_unassigned) {
1331 log_debugx("not listening on portal-group \"%s\", "
1332 "not assigned to any target",
1333 newpg->pg_name);
1334 continue;
1335 }
1336 TAILQ_FOREACH(newp, &newpg->pg_portals, p_next) {
1337 /*
1338 * Try to find already open portal and reuse
1339 * the listening socket. We don't care about
1340 * what portal or portal group that was, what
1341 * matters is the listening address.
1342 */
1343 TAILQ_FOREACH(oldpg, &oldconf->conf_portal_groups,
1344 pg_next) {
1345 TAILQ_FOREACH(oldp, &oldpg->pg_portals,
1346 p_next) {
1347 if (strcmp(newp->p_listen,
1348 oldp->p_listen) == 0 &&
1349 oldp->p_socket > 0) {
1350 newp->p_socket =
1351 oldp->p_socket;
1352 oldp->p_socket = 0;
1353 break;
1354 }
1355 }
1356 }
1357 if (newp->p_socket > 0) {
1358 /*
1359 * We're done with this portal.
1360 */
1361 continue;
1362 }
1363
1364#ifdef ICL_KERNEL_PROXY
1365 log_debugx("listening on %s, portal-group \"%s\" using ICL proxy",
1366 newp->p_listen, newpg->pg_name);
1367 kernel_listen(newp->p_ai, newp->p_iser);
1368#else
1369 assert(newp->p_iser == false);
1370
1371 log_debugx("listening on %s, portal-group \"%s\"",
1372 newp->p_listen, newpg->pg_name);
1373 newp->p_socket = socket(newp->p_ai->ai_family,
1374 newp->p_ai->ai_socktype,
1375 newp->p_ai->ai_protocol);
1376 if (newp->p_socket < 0) {
1377 log_warn("socket(2) failed for %s",
1378 newp->p_listen);
1379 cumulated_error++;
1380 continue;
1381 }
1382 error = setsockopt(newp->p_socket, SOL_SOCKET,
1383 SO_REUSEADDR, &one, sizeof(one));
1384 if (error != 0) {
1385 log_warn("setsockopt(SO_REUSEADDR) failed "
1386 "for %s", newp->p_listen);
1387 close(newp->p_socket);
1388 newp->p_socket = 0;
1389 cumulated_error++;
1390 continue;
1391 }
1392 error = bind(newp->p_socket, newp->p_ai->ai_addr,
1393 newp->p_ai->ai_addrlen);
1394 if (error != 0) {
1395 log_warn("bind(2) failed for %s",
1396 newp->p_listen);
1397 close(newp->p_socket);
1398 newp->p_socket = 0;
1399 cumulated_error++;
1400 continue;
1401 }
1402 error = listen(newp->p_socket, -1);
1403 if (error != 0) {
1404 log_warn("listen(2) failed for %s",
1405 newp->p_listen);
1406 close(newp->p_socket);
1407 newp->p_socket = 0;
1408 cumulated_error++;
1409 continue;
1410 }
1411#endif /* !ICL_KERNEL_PROXY */
1412 }
1413 }
1414
1415 /*
1416 * Go through the no longer used sockets, closing them.
1417 */
1418 TAILQ_FOREACH(oldpg, &oldconf->conf_portal_groups, pg_next) {
1419 TAILQ_FOREACH(oldp, &oldpg->pg_portals, p_next) {
1420 if (oldp->p_socket <= 0)
1421 continue;
1422 log_debugx("closing socket for %s, portal-group \"%s\"",
1423 oldp->p_listen, oldpg->pg_name);
1424 close(oldp->p_socket);
1425 oldp->p_socket = 0;
1426 }
1427 }
1428
1429 return (cumulated_error);
1430}
1431
1432bool
1433timed_out(void)
1434{
1435
1436 return (sigalrm_received);
1437}
1438
1439static void
1440sigalrm_handler(int dummy __unused)
1441{
1442 /*
1443 * It would be easiest to just log an error and exit. We can't
1444 * do this, though, because log_errx() is not signal safe, since
1445 * it calls syslog(3). Instead, set a flag checked by pdu_send()
1446 * and pdu_receive(), to call log_errx() there. Should they fail
1447 * to notice, we'll exit here one second later.
1448 */
1449 if (sigalrm_received) {
1450 /*
1451 * Oh well. Just give up and quit.
1452 */
1453 _exit(2);
1454 }
1455
1456 sigalrm_received = true;
1457}
1458
1459static void
1460set_timeout(const struct conf *conf)
1461{
1462 struct sigaction sa;
1463 struct itimerval itv;
1464 int error;
1465
1466 if (conf->conf_timeout <= 0) {
1467 log_debugx("session timeout disabled");
1468 return;
1469 }
1470
1471 bzero(&sa, sizeof(sa));
1472 sa.sa_handler = sigalrm_handler;
1473 sigfillset(&sa.sa_mask);
1474 error = sigaction(SIGALRM, &sa, NULL);
1475 if (error != 0)
1476 log_err(1, "sigaction");
1477
1478 /*
1479 * First SIGALRM will arive after conf_timeout seconds.
1480 * If we do nothing, another one will arrive a second later.
1481 */
1482 bzero(&itv, sizeof(itv));
1483 itv.it_interval.tv_sec = 1;
1484 itv.it_value.tv_sec = conf->conf_timeout;
1485
1486 log_debugx("setting session timeout to %d seconds",
1487 conf->conf_timeout);
1488 error = setitimer(ITIMER_REAL, &itv, NULL);
1489 if (error != 0)
1490 log_err(1, "setitimer");
1491}
1492
1493static int
1494wait_for_children(bool block)
1495{
1496 pid_t pid;
1497 int status;
1498 int num = 0;
1499
1500 for (;;) {
1501 /*
1502 * If "block" is true, wait for at least one process.
1503 */
1504 if (block && num == 0)
1505 pid = wait4(-1, &status, 0, NULL);
1506 else
1507 pid = wait4(-1, &status, WNOHANG, NULL);
1508 if (pid <= 0)
1509 break;
1510 if (WIFSIGNALED(status)) {
1511 log_warnx("child process %d terminated with signal %d",
1512 pid, WTERMSIG(status));
1513 } else if (WEXITSTATUS(status) != 0) {
1514 log_warnx("child process %d terminated with exit status %d",
1515 pid, WEXITSTATUS(status));
1516 } else {
1517 log_debugx("child process %d terminated gracefully", pid);
1518 }
1519 num++;
1520 }
1521
1522 return (num);
1523}
1524
1525static void
1526handle_connection(struct portal *portal, int fd, bool dont_fork)
1527{
1528 struct connection *conn;
1529#ifndef ICL_KERNEL_PROXY
1530 struct sockaddr_storage ss;
1531 socklen_t sslen = sizeof(ss);
1532 int error;
1533#endif
1534 pid_t pid;
1535 char host[NI_MAXHOST + 1];
1536 struct conf *conf;
1537
1538 conf = portal->p_portal_group->pg_conf;
1539
1540 if (dont_fork) {
1541 log_debugx("incoming connection; not forking due to -d flag");
1542 } else {
1543 nchildren -= wait_for_children(false);
1544 assert(nchildren >= 0);
1545
1546 while (conf->conf_maxproc > 0 && nchildren >= conf->conf_maxproc) {
1547 log_debugx("maxproc limit of %d child processes hit; "
1548 "waiting for child process to exit", conf->conf_maxproc);
1549 nchildren -= wait_for_children(true);
1550 assert(nchildren >= 0);
1551 }
1552 log_debugx("incoming connection; forking child process #%d",
1553 nchildren);
1554 nchildren++;
1555 pid = fork();
1556 if (pid < 0)
1557 log_err(1, "fork");
1558 if (pid > 0) {
1559 close(fd);
1560 return;
1561 }
1562 }
1563 pidfile_close(conf->conf_pidfh);
1564
1565#ifdef ICL_KERNEL_PROXY
1566 /*
1567 * XXX
1568 */
1569 log_set_peer_addr("XXX");
1570#else
1571 error = getpeername(fd, (struct sockaddr *)&ss, &sslen);
1572 if (error != 0)
1573 log_err(1, "getpeername");
1574 error = getnameinfo((struct sockaddr *)&ss, sslen,
1575 host, sizeof(host), NULL, 0, NI_NUMERICHOST);
1576 if (error != 0)
1577 log_errx(1, "getaddrinfo: %s", gai_strerror(error));
1578
1579 log_debugx("accepted connection from %s; portal group \"%s\"",
1580 host, portal->p_portal_group->pg_name);
1581 log_set_peer_addr(host);
1582 setproctitle("%s", host);
1583#endif
1584
1585 conn = connection_new(portal, fd, host);
1586 set_timeout(conf);
1587 kernel_capsicate();
1588 login(conn);
1589 if (conn->conn_session_type == CONN_SESSION_TYPE_NORMAL) {
1590 kernel_handoff(conn);
1591 log_debugx("connection handed off to the kernel");
1592 } else {
1593 assert(conn->conn_session_type == CONN_SESSION_TYPE_DISCOVERY);
1594 discovery(conn);
1595 }
1596 log_debugx("nothing more to do; exiting");
1597 exit(0);
1598}
1599
1600#ifndef ICL_KERNEL_PROXY
1601static int
1602fd_add(int fd, fd_set *fdset, int nfds)
1603{
1604
1605 /*
1606 * Skip sockets which we failed to bind.
1607 */
1608 if (fd <= 0)
1609 return (nfds);
1610
1611 FD_SET(fd, fdset);
1612 if (fd > nfds)
1613 nfds = fd;
1614 return (nfds);
1615}
1616#endif
1617
1618static void
1619main_loop(struct conf *conf, bool dont_fork)
1620{
1621 struct portal_group *pg;
1622 struct portal *portal;
1623#ifdef ICL_KERNEL_PROXY
1624 int connection_id;
1625#else
1626 fd_set fdset;
1627 int error, nfds, client_fd;
1628#endif
1629
1630 pidfile_write(conf->conf_pidfh);
1631
1632 for (;;) {
1633 if (sighup_received || sigterm_received)
1634 return;
1635
1636#ifdef ICL_KERNEL_PROXY
1637 connection_id = kernel_accept();
1638 if (connection_id == 0)
1639 continue;
1640
1641 /*
1642 * XXX: This is obviously temporary.
1643 */
1644 pg = TAILQ_FIRST(&conf->conf_portal_groups);
1645 portal = TAILQ_FIRST(&pg->pg_portals);
1646
1647 handle_connection(portal, connection_id, dont_fork);
1648#else
1649 FD_ZERO(&fdset);
1650 nfds = 0;
1651 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
1652 TAILQ_FOREACH(portal, &pg->pg_portals, p_next)
1653 nfds = fd_add(portal->p_socket, &fdset, nfds);
1654 }
1655 error = select(nfds + 1, &fdset, NULL, NULL, NULL);
1656 if (error <= 0) {
1657 if (errno == EINTR)
1658 return;
1659 log_err(1, "select");
1660 }
1661 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
1662 TAILQ_FOREACH(portal, &pg->pg_portals, p_next) {
1663 if (!FD_ISSET(portal->p_socket, &fdset))
1664 continue;
1665 client_fd = accept(portal->p_socket, NULL, 0);
1666 if (client_fd < 0)
1667 log_err(1, "accept");
1668 handle_connection(portal, client_fd, dont_fork);
1669 break;
1670 }
1671 }
1672#endif /* !ICL_KERNEL_PROXY */
1673 }
1674}
1675
1676static void
1677sighup_handler(int dummy __unused)
1678{
1679
1680 sighup_received = true;
1681}
1682
1683static void
1684sigterm_handler(int dummy __unused)
1685{
1686
1687 sigterm_received = true;
1688}
1689
1690static void
1691register_signals(void)
1692{
1693 struct sigaction sa;
1694 int error;
1695
1696 bzero(&sa, sizeof(sa));
1697 sa.sa_handler = sighup_handler;
1698 sigfillset(&sa.sa_mask);
1699 error = sigaction(SIGHUP, &sa, NULL);
1700 if (error != 0)
1701 log_err(1, "sigaction");
1702
1703 sa.sa_handler = sigterm_handler;
1704 error = sigaction(SIGTERM, &sa, NULL);
1705 if (error != 0)
1706 log_err(1, "sigaction");
1707
1708 sa.sa_handler = sigterm_handler;
1709 error = sigaction(SIGINT, &sa, NULL);
1710 if (error != 0)
1711 log_err(1, "sigaction");
1712}
1713
1714int
1715main(int argc, char **argv)
1716{
1717 struct conf *oldconf, *newconf, *tmpconf;
1718 const char *config_path = DEFAULT_CONFIG_PATH;
1719 int debug = 0, ch, error;
1720 bool dont_daemonize = false;
1721
1722 while ((ch = getopt(argc, argv, "df:")) != -1) {
1723 switch (ch) {
1724 case 'd':
1725 dont_daemonize = true;
1726 debug++;
1727 break;
1728 case 'f':
1729 config_path = optarg;
1730 break;
1731 case '?':
1732 default:
1733 usage();
1734 }
1735 }
1736 argc -= optind;
1737 if (argc != 0)
1738 usage();
1739
1740 log_init(debug);
1741 kernel_init();
1742
1743 oldconf = conf_new_from_kernel();
1744 newconf = conf_new_from_file(config_path);
1745 if (newconf == NULL)
1746 log_errx(1, "configuration error, exiting");
1747 if (debug > 0) {
1748 oldconf->conf_debug = debug;
1749 newconf->conf_debug = debug;
1750 }
1751
1752#ifdef ICL_KERNEL_PROXY
1753 log_debugx("enabling CTL iSCSI port");
1754 error = kernel_port_on();
1755 if (error != 0)
1756 log_errx(1, "failed to enable CTL iSCSI port, exiting");
1757#endif
1758
1759 error = conf_apply(oldconf, newconf);
1760 if (error != 0)
1761 log_errx(1, "failed to apply configuration, exiting");
1762 conf_delete(oldconf);
1763 oldconf = NULL;
1764
1765 register_signals();
1766
1767#ifndef ICL_KERNEL_PROXY
1768 log_debugx("enabling CTL iSCSI port");
1769 error = kernel_port_on();
1770 if (error != 0)
1771 log_errx(1, "failed to enable CTL iSCSI port, exiting");
1772#endif
1773
1774 if (dont_daemonize == false) {
1775 log_debugx("daemonizing");
1776 if (daemon(0, 0) == -1) {
1777 log_warn("cannot daemonize");
1778 pidfile_remove(newconf->conf_pidfh);
1779 exit(1);
1780 }
1781 }
1782
1783 for (;;) {
1784 main_loop(newconf, dont_daemonize);
1785 if (sighup_received) {
1786 sighup_received = false;
1787 log_debugx("received SIGHUP, reloading configuration");
1788 tmpconf = conf_new_from_file(config_path);
1789 if (tmpconf == NULL) {
1790 log_warnx("configuration error, "
1791 "continuing with old configuration");
1792 } else {
1793 if (debug > 0)
1794 tmpconf->conf_debug = debug;
1795 oldconf = newconf;
1796 newconf = tmpconf;
1797 error = conf_apply(oldconf, newconf);
1798 if (error != 0)
1799 log_warnx("failed to reload "
1800 "configuration");
1801 conf_delete(oldconf);
1802 oldconf = NULL;
1803 }
1804 } else if (sigterm_received) {
1805 log_debugx("exiting on signal; "
1806 "reloading empty configuration");
1807
1808 log_debugx("disabling CTL iSCSI port "
1809 "and terminating all connections");
1810 error = kernel_port_off();
1811 if (error != 0)
1812 log_warnx("failed to disable CTL iSCSI port");
1813
1814 oldconf = newconf;
1815 newconf = conf_new();
1816 if (debug > 0)
1817 newconf->conf_debug = debug;
1818 error = conf_apply(oldconf, newconf);
1819 if (error != 0)
1820 log_warnx("failed to apply configuration");
1821
1822 log_warnx("exiting on signal");
1823 exit(0);
1824 } else {
1825 nchildren -= wait_for_children(false);
1826 assert(nchildren >= 0);
1827 }
1828 }
1829 /* NOTREACHED */
1830}
| 1321 cumulated_error++;
1322 }
1323 }
1324 }
1325
1326 /*
1327 * Go through the new portals, opening the sockets as neccessary.
1328 */
1329 TAILQ_FOREACH(newpg, &newconf->conf_portal_groups, pg_next) {
1330 if (newpg->pg_unassigned) {
1331 log_debugx("not listening on portal-group \"%s\", "
1332 "not assigned to any target",
1333 newpg->pg_name);
1334 continue;
1335 }
1336 TAILQ_FOREACH(newp, &newpg->pg_portals, p_next) {
1337 /*
1338 * Try to find already open portal and reuse
1339 * the listening socket. We don't care about
1340 * what portal or portal group that was, what
1341 * matters is the listening address.
1342 */
1343 TAILQ_FOREACH(oldpg, &oldconf->conf_portal_groups,
1344 pg_next) {
1345 TAILQ_FOREACH(oldp, &oldpg->pg_portals,
1346 p_next) {
1347 if (strcmp(newp->p_listen,
1348 oldp->p_listen) == 0 &&
1349 oldp->p_socket > 0) {
1350 newp->p_socket =
1351 oldp->p_socket;
1352 oldp->p_socket = 0;
1353 break;
1354 }
1355 }
1356 }
1357 if (newp->p_socket > 0) {
1358 /*
1359 * We're done with this portal.
1360 */
1361 continue;
1362 }
1363
1364#ifdef ICL_KERNEL_PROXY
1365 log_debugx("listening on %s, portal-group \"%s\" using ICL proxy",
1366 newp->p_listen, newpg->pg_name);
1367 kernel_listen(newp->p_ai, newp->p_iser);
1368#else
1369 assert(newp->p_iser == false);
1370
1371 log_debugx("listening on %s, portal-group \"%s\"",
1372 newp->p_listen, newpg->pg_name);
1373 newp->p_socket = socket(newp->p_ai->ai_family,
1374 newp->p_ai->ai_socktype,
1375 newp->p_ai->ai_protocol);
1376 if (newp->p_socket < 0) {
1377 log_warn("socket(2) failed for %s",
1378 newp->p_listen);
1379 cumulated_error++;
1380 continue;
1381 }
1382 error = setsockopt(newp->p_socket, SOL_SOCKET,
1383 SO_REUSEADDR, &one, sizeof(one));
1384 if (error != 0) {
1385 log_warn("setsockopt(SO_REUSEADDR) failed "
1386 "for %s", newp->p_listen);
1387 close(newp->p_socket);
1388 newp->p_socket = 0;
1389 cumulated_error++;
1390 continue;
1391 }
1392 error = bind(newp->p_socket, newp->p_ai->ai_addr,
1393 newp->p_ai->ai_addrlen);
1394 if (error != 0) {
1395 log_warn("bind(2) failed for %s",
1396 newp->p_listen);
1397 close(newp->p_socket);
1398 newp->p_socket = 0;
1399 cumulated_error++;
1400 continue;
1401 }
1402 error = listen(newp->p_socket, -1);
1403 if (error != 0) {
1404 log_warn("listen(2) failed for %s",
1405 newp->p_listen);
1406 close(newp->p_socket);
1407 newp->p_socket = 0;
1408 cumulated_error++;
1409 continue;
1410 }
1411#endif /* !ICL_KERNEL_PROXY */
1412 }
1413 }
1414
1415 /*
1416 * Go through the no longer used sockets, closing them.
1417 */
1418 TAILQ_FOREACH(oldpg, &oldconf->conf_portal_groups, pg_next) {
1419 TAILQ_FOREACH(oldp, &oldpg->pg_portals, p_next) {
1420 if (oldp->p_socket <= 0)
1421 continue;
1422 log_debugx("closing socket for %s, portal-group \"%s\"",
1423 oldp->p_listen, oldpg->pg_name);
1424 close(oldp->p_socket);
1425 oldp->p_socket = 0;
1426 }
1427 }
1428
1429 return (cumulated_error);
1430}
1431
1432bool
1433timed_out(void)
1434{
1435
1436 return (sigalrm_received);
1437}
1438
1439static void
1440sigalrm_handler(int dummy __unused)
1441{
1442 /*
1443 * It would be easiest to just log an error and exit. We can't
1444 * do this, though, because log_errx() is not signal safe, since
1445 * it calls syslog(3). Instead, set a flag checked by pdu_send()
1446 * and pdu_receive(), to call log_errx() there. Should they fail
1447 * to notice, we'll exit here one second later.
1448 */
1449 if (sigalrm_received) {
1450 /*
1451 * Oh well. Just give up and quit.
1452 */
1453 _exit(2);
1454 }
1455
1456 sigalrm_received = true;
1457}
1458
1459static void
1460set_timeout(const struct conf *conf)
1461{
1462 struct sigaction sa;
1463 struct itimerval itv;
1464 int error;
1465
1466 if (conf->conf_timeout <= 0) {
1467 log_debugx("session timeout disabled");
1468 return;
1469 }
1470
1471 bzero(&sa, sizeof(sa));
1472 sa.sa_handler = sigalrm_handler;
1473 sigfillset(&sa.sa_mask);
1474 error = sigaction(SIGALRM, &sa, NULL);
1475 if (error != 0)
1476 log_err(1, "sigaction");
1477
1478 /*
1479 * First SIGALRM will arive after conf_timeout seconds.
1480 * If we do nothing, another one will arrive a second later.
1481 */
1482 bzero(&itv, sizeof(itv));
1483 itv.it_interval.tv_sec = 1;
1484 itv.it_value.tv_sec = conf->conf_timeout;
1485
1486 log_debugx("setting session timeout to %d seconds",
1487 conf->conf_timeout);
1488 error = setitimer(ITIMER_REAL, &itv, NULL);
1489 if (error != 0)
1490 log_err(1, "setitimer");
1491}
1492
1493static int
1494wait_for_children(bool block)
1495{
1496 pid_t pid;
1497 int status;
1498 int num = 0;
1499
1500 for (;;) {
1501 /*
1502 * If "block" is true, wait for at least one process.
1503 */
1504 if (block && num == 0)
1505 pid = wait4(-1, &status, 0, NULL);
1506 else
1507 pid = wait4(-1, &status, WNOHANG, NULL);
1508 if (pid <= 0)
1509 break;
1510 if (WIFSIGNALED(status)) {
1511 log_warnx("child process %d terminated with signal %d",
1512 pid, WTERMSIG(status));
1513 } else if (WEXITSTATUS(status) != 0) {
1514 log_warnx("child process %d terminated with exit status %d",
1515 pid, WEXITSTATUS(status));
1516 } else {
1517 log_debugx("child process %d terminated gracefully", pid);
1518 }
1519 num++;
1520 }
1521
1522 return (num);
1523}
1524
1525static void
1526handle_connection(struct portal *portal, int fd, bool dont_fork)
1527{
1528 struct connection *conn;
1529#ifndef ICL_KERNEL_PROXY
1530 struct sockaddr_storage ss;
1531 socklen_t sslen = sizeof(ss);
1532 int error;
1533#endif
1534 pid_t pid;
1535 char host[NI_MAXHOST + 1];
1536 struct conf *conf;
1537
1538 conf = portal->p_portal_group->pg_conf;
1539
1540 if (dont_fork) {
1541 log_debugx("incoming connection; not forking due to -d flag");
1542 } else {
1543 nchildren -= wait_for_children(false);
1544 assert(nchildren >= 0);
1545
1546 while (conf->conf_maxproc > 0 && nchildren >= conf->conf_maxproc) {
1547 log_debugx("maxproc limit of %d child processes hit; "
1548 "waiting for child process to exit", conf->conf_maxproc);
1549 nchildren -= wait_for_children(true);
1550 assert(nchildren >= 0);
1551 }
1552 log_debugx("incoming connection; forking child process #%d",
1553 nchildren);
1554 nchildren++;
1555 pid = fork();
1556 if (pid < 0)
1557 log_err(1, "fork");
1558 if (pid > 0) {
1559 close(fd);
1560 return;
1561 }
1562 }
1563 pidfile_close(conf->conf_pidfh);
1564
1565#ifdef ICL_KERNEL_PROXY
1566 /*
1567 * XXX
1568 */
1569 log_set_peer_addr("XXX");
1570#else
1571 error = getpeername(fd, (struct sockaddr *)&ss, &sslen);
1572 if (error != 0)
1573 log_err(1, "getpeername");
1574 error = getnameinfo((struct sockaddr *)&ss, sslen,
1575 host, sizeof(host), NULL, 0, NI_NUMERICHOST);
1576 if (error != 0)
1577 log_errx(1, "getaddrinfo: %s", gai_strerror(error));
1578
1579 log_debugx("accepted connection from %s; portal group \"%s\"",
1580 host, portal->p_portal_group->pg_name);
1581 log_set_peer_addr(host);
1582 setproctitle("%s", host);
1583#endif
1584
1585 conn = connection_new(portal, fd, host);
1586 set_timeout(conf);
1587 kernel_capsicate();
1588 login(conn);
1589 if (conn->conn_session_type == CONN_SESSION_TYPE_NORMAL) {
1590 kernel_handoff(conn);
1591 log_debugx("connection handed off to the kernel");
1592 } else {
1593 assert(conn->conn_session_type == CONN_SESSION_TYPE_DISCOVERY);
1594 discovery(conn);
1595 }
1596 log_debugx("nothing more to do; exiting");
1597 exit(0);
1598}
1599
1600#ifndef ICL_KERNEL_PROXY
1601static int
1602fd_add(int fd, fd_set *fdset, int nfds)
1603{
1604
1605 /*
1606 * Skip sockets which we failed to bind.
1607 */
1608 if (fd <= 0)
1609 return (nfds);
1610
1611 FD_SET(fd, fdset);
1612 if (fd > nfds)
1613 nfds = fd;
1614 return (nfds);
1615}
1616#endif
1617
1618static void
1619main_loop(struct conf *conf, bool dont_fork)
1620{
1621 struct portal_group *pg;
1622 struct portal *portal;
1623#ifdef ICL_KERNEL_PROXY
1624 int connection_id;
1625#else
1626 fd_set fdset;
1627 int error, nfds, client_fd;
1628#endif
1629
1630 pidfile_write(conf->conf_pidfh);
1631
1632 for (;;) {
1633 if (sighup_received || sigterm_received)
1634 return;
1635
1636#ifdef ICL_KERNEL_PROXY
1637 connection_id = kernel_accept();
1638 if (connection_id == 0)
1639 continue;
1640
1641 /*
1642 * XXX: This is obviously temporary.
1643 */
1644 pg = TAILQ_FIRST(&conf->conf_portal_groups);
1645 portal = TAILQ_FIRST(&pg->pg_portals);
1646
1647 handle_connection(portal, connection_id, dont_fork);
1648#else
1649 FD_ZERO(&fdset);
1650 nfds = 0;
1651 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
1652 TAILQ_FOREACH(portal, &pg->pg_portals, p_next)
1653 nfds = fd_add(portal->p_socket, &fdset, nfds);
1654 }
1655 error = select(nfds + 1, &fdset, NULL, NULL, NULL);
1656 if (error <= 0) {
1657 if (errno == EINTR)
1658 return;
1659 log_err(1, "select");
1660 }
1661 TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
1662 TAILQ_FOREACH(portal, &pg->pg_portals, p_next) {
1663 if (!FD_ISSET(portal->p_socket, &fdset))
1664 continue;
1665 client_fd = accept(portal->p_socket, NULL, 0);
1666 if (client_fd < 0)
1667 log_err(1, "accept");
1668 handle_connection(portal, client_fd, dont_fork);
1669 break;
1670 }
1671 }
1672#endif /* !ICL_KERNEL_PROXY */
1673 }
1674}
1675
1676static void
1677sighup_handler(int dummy __unused)
1678{
1679
1680 sighup_received = true;
1681}
1682
1683static void
1684sigterm_handler(int dummy __unused)
1685{
1686
1687 sigterm_received = true;
1688}
1689
1690static void
1691register_signals(void)
1692{
1693 struct sigaction sa;
1694 int error;
1695
1696 bzero(&sa, sizeof(sa));
1697 sa.sa_handler = sighup_handler;
1698 sigfillset(&sa.sa_mask);
1699 error = sigaction(SIGHUP, &sa, NULL);
1700 if (error != 0)
1701 log_err(1, "sigaction");
1702
1703 sa.sa_handler = sigterm_handler;
1704 error = sigaction(SIGTERM, &sa, NULL);
1705 if (error != 0)
1706 log_err(1, "sigaction");
1707
1708 sa.sa_handler = sigterm_handler;
1709 error = sigaction(SIGINT, &sa, NULL);
1710 if (error != 0)
1711 log_err(1, "sigaction");
1712}
1713
1714int
1715main(int argc, char **argv)
1716{
1717 struct conf *oldconf, *newconf, *tmpconf;
1718 const char *config_path = DEFAULT_CONFIG_PATH;
1719 int debug = 0, ch, error;
1720 bool dont_daemonize = false;
1721
1722 while ((ch = getopt(argc, argv, "df:")) != -1) {
1723 switch (ch) {
1724 case 'd':
1725 dont_daemonize = true;
1726 debug++;
1727 break;
1728 case 'f':
1729 config_path = optarg;
1730 break;
1731 case '?':
1732 default:
1733 usage();
1734 }
1735 }
1736 argc -= optind;
1737 if (argc != 0)
1738 usage();
1739
1740 log_init(debug);
1741 kernel_init();
1742
1743 oldconf = conf_new_from_kernel();
1744 newconf = conf_new_from_file(config_path);
1745 if (newconf == NULL)
1746 log_errx(1, "configuration error, exiting");
1747 if (debug > 0) {
1748 oldconf->conf_debug = debug;
1749 newconf->conf_debug = debug;
1750 }
1751
1752#ifdef ICL_KERNEL_PROXY
1753 log_debugx("enabling CTL iSCSI port");
1754 error = kernel_port_on();
1755 if (error != 0)
1756 log_errx(1, "failed to enable CTL iSCSI port, exiting");
1757#endif
1758
1759 error = conf_apply(oldconf, newconf);
1760 if (error != 0)
1761 log_errx(1, "failed to apply configuration, exiting");
1762 conf_delete(oldconf);
1763 oldconf = NULL;
1764
1765 register_signals();
1766
1767#ifndef ICL_KERNEL_PROXY
1768 log_debugx("enabling CTL iSCSI port");
1769 error = kernel_port_on();
1770 if (error != 0)
1771 log_errx(1, "failed to enable CTL iSCSI port, exiting");
1772#endif
1773
1774 if (dont_daemonize == false) {
1775 log_debugx("daemonizing");
1776 if (daemon(0, 0) == -1) {
1777 log_warn("cannot daemonize");
1778 pidfile_remove(newconf->conf_pidfh);
1779 exit(1);
1780 }
1781 }
1782
1783 for (;;) {
1784 main_loop(newconf, dont_daemonize);
1785 if (sighup_received) {
1786 sighup_received = false;
1787 log_debugx("received SIGHUP, reloading configuration");
1788 tmpconf = conf_new_from_file(config_path);
1789 if (tmpconf == NULL) {
1790 log_warnx("configuration error, "
1791 "continuing with old configuration");
1792 } else {
1793 if (debug > 0)
1794 tmpconf->conf_debug = debug;
1795 oldconf = newconf;
1796 newconf = tmpconf;
1797 error = conf_apply(oldconf, newconf);
1798 if (error != 0)
1799 log_warnx("failed to reload "
1800 "configuration");
1801 conf_delete(oldconf);
1802 oldconf = NULL;
1803 }
1804 } else if (sigterm_received) {
1805 log_debugx("exiting on signal; "
1806 "reloading empty configuration");
1807
1808 log_debugx("disabling CTL iSCSI port "
1809 "and terminating all connections");
1810 error = kernel_port_off();
1811 if (error != 0)
1812 log_warnx("failed to disable CTL iSCSI port");
1813
1814 oldconf = newconf;
1815 newconf = conf_new();
1816 if (debug > 0)
1817 newconf->conf_debug = debug;
1818 error = conf_apply(oldconf, newconf);
1819 if (error != 0)
1820 log_warnx("failed to apply configuration");
1821
1822 log_warnx("exiting on signal");
1823 exit(0);
1824 } else {
1825 nchildren -= wait_for_children(false);
1826 assert(nchildren >= 0);
1827 }
1828 }
1829 /* NOTREACHED */
1830}
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