support of reqid field in SQL database
[strongswan.git] / src / libcharon / plugins / sql / sql_config.c
1 /*
2 * Copyright (C) 2006-2008 Martin Willi
3 * Copyright (C) 2010 Andreas Steffen
4 * Hochschule fuer Technik Rapperswil
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * for more details.
15 */
16
17 #include <string.h>
18
19 #include "sql_config.h"
20
21 #include <daemon.h>
22
23 typedef struct private_sql_config_t private_sql_config_t;
24
25 /**
26 * Private data of an sql_config_t object
27 */
28 struct private_sql_config_t {
29
30 /**
31 * Public part
32 */
33 sql_config_t public;
34
35 /**
36 * database connection
37 */
38 database_t *db;
39 };
40
41 /**
42 * Forward declaration
43 */
44 static peer_cfg_t *build_peer_cfg(private_sql_config_t *this, enumerator_t *e,
45 identification_t *me, identification_t *other);
46
47 /**
48 * Build a traffic selector from an SQL query
49 */
50 static traffic_selector_t *build_traffic_selector(private_sql_config_t *this,
51 enumerator_t *e, bool *local)
52 {
53 int type, protocol, start_port, end_port;
54 chunk_t start_addr, end_addr;
55 traffic_selector_t *ts;
56 enum {
57 TS_LOCAL = 0,
58 TS_REMOTE = 1,
59 TS_LOCAL_DYNAMIC = 2,
60 TS_REMOTE_DYNAMIC = 3,
61 } kind;
62
63 while (e->enumerate(e, &kind, &type, &protocol,
64 &start_addr, &end_addr, &start_port, &end_port))
65 {
66 *local = FALSE;
67 switch (kind)
68 {
69 case TS_LOCAL:
70 *local = TRUE;
71 /* FALL */
72 case TS_REMOTE:
73 ts = traffic_selector_create_from_bytes(protocol, type,
74 start_addr, start_port, end_addr, end_port);
75 break;
76 case TS_LOCAL_DYNAMIC:
77 *local = TRUE;
78 /* FALL */
79 case TS_REMOTE_DYNAMIC:
80 ts = traffic_selector_create_dynamic(protocol,
81 start_port, end_port);
82 break;
83 default:
84 continue;
85 }
86 if (ts)
87 {
88 return ts;
89 }
90 }
91 return NULL;
92 }
93
94 /**
95 * Add traffic selectors to a child config
96 */
97 static void add_traffic_selectors(private_sql_config_t *this,
98 child_cfg_t *child, int id)
99 {
100 enumerator_t *e;
101 traffic_selector_t *ts;
102 bool local;
103
104 e = this->db->query(this->db,
105 "SELECT kind, type, protocol, "
106 "start_addr, end_addr, start_port, end_port "
107 "FROM traffic_selectors JOIN child_config_traffic_selector "
108 "ON id = traffic_selector WHERE child_cfg = ?",
109 DB_INT, id,
110 DB_INT, DB_INT, DB_INT,
111 DB_BLOB, DB_BLOB, DB_INT, DB_INT);
112 if (e)
113 {
114 while ((ts = build_traffic_selector(this, e, &local)))
115 {
116 child->add_traffic_selector(child, local, ts);
117 }
118 e->destroy(e);
119 }
120 }
121
122 /**
123 * Add ESP proposals to a child config
124 */
125 static void add_esp_proposals(private_sql_config_t *this,
126 child_cfg_t *child, int id)
127 {
128 enumerator_t *e;
129 proposal_t *proposal;
130 char *prop;
131 bool use_default = TRUE;
132
133 e = this->db->query(this->db,
134 "SELECT proposal "
135 "FROM proposals JOIN child_config_proposal ON id = prop "
136 "WHERE child_cfg = ? ORDER BY prio",
137 DB_INT, id, DB_TEXT);
138 if (e)
139 {
140 while (e->enumerate(e, &prop))
141 {
142 proposal = proposal_create_from_string(PROTO_ESP, prop);
143 if (!proposal)
144 {
145 DBG1(DBG_CFG, "could not create ESP proposal from '%s'", prop);
146 break;
147 }
148 child->add_proposal(child, proposal);
149 use_default = FALSE;
150 }
151 e->destroy(e);
152 }
153 if (use_default)
154 {
155 child->add_proposal(child, proposal_create_default(PROTO_ESP));
156 }
157 }
158
159 /**
160 * Build a child config from an SQL query
161 */
162 static child_cfg_t *build_child_cfg(private_sql_config_t *this, enumerator_t *e)
163 {
164 int id, lifetime, rekeytime, jitter, hostaccess, mode, ipcomp, reqid;
165 int start, dpd, close;
166 char *name, *updown;
167 child_cfg_t *child_cfg;
168
169 if (e->enumerate(e, &id, &name, &lifetime, &rekeytime, &jitter, &updown,
170 &hostaccess, &mode, &start, &dpd, &close, &ipcomp, %reqid))
171 {
172 lifetime_cfg_t lft = {
173 .time = { .life = lifetime, .rekey = rekeytime, .jitter = jitter }
174 };
175 child_cfg = child_cfg_create(name, &lft, updown, hostaccess, mode,
176 start, dpd, close, ipcomp, 0, reqid,
177 NULL, NULL);
178 add_esp_proposals(this, child_cfg, id);
179 add_traffic_selectors(this, child_cfg, id);
180 return child_cfg;
181 }
182 return NULL;
183 }
184
185 /**
186 * Add child configs to peer config
187 */
188 static void add_child_cfgs(private_sql_config_t *this, peer_cfg_t *peer, int id)
189 {
190 enumerator_t *e;
191 child_cfg_t *child_cfg;
192
193 e = this->db->query(this->db,
194 "SELECT id, name, lifetime, rekeytime, jitter, updown, hostaccess, "
195 "mode, start_action, dpd_action, close_action, ipcomp, reqid "
196 "FROM child_configs JOIN peer_config_child_config ON id = child_cfg "
197 "WHERE peer_cfg = ?",
198 DB_INT, id,
199 DB_INT, DB_TEXT, DB_INT, DB_INT, DB_INT, DB_TEXT, DB_INT,
200 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT, DB_INT);
201 if (e)
202 {
203 while ((child_cfg = build_child_cfg(this, e)))
204 {
205 peer->add_child_cfg(peer, child_cfg);
206 }
207 e->destroy(e);
208 }
209 }
210
211 /**
212 * Add IKE proposals to an IKE config
213 */
214 static void add_ike_proposals(private_sql_config_t *this,
215 ike_cfg_t *ike_cfg, int id)
216 {
217 enumerator_t *e;
218 proposal_t *proposal;
219 char *prop;
220 bool use_default = TRUE;
221
222 e = this->db->query(this->db,
223 "SELECT proposal "
224 "FROM proposals JOIN ike_config_proposal ON id = prop "
225 "WHERE ike_cfg = ? ORDER BY prio",
226 DB_INT, id, DB_TEXT);
227 if (e)
228 {
229 while (e->enumerate(e, &prop))
230 {
231 proposal = proposal_create_from_string(PROTO_IKE, prop);
232 if (!proposal)
233 {
234 DBG1(DBG_CFG, "could not create IKE proposal from '%s'", prop);
235 break;
236 }
237 ike_cfg->add_proposal(ike_cfg, proposal);
238 use_default = FALSE;
239 }
240 e->destroy(e);
241 }
242 if (use_default)
243 {
244 ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
245 }
246 }
247
248 /**
249 * Build an IKE config from an SQL query
250 */
251 static ike_cfg_t *build_ike_cfg(private_sql_config_t *this, enumerator_t *e,
252 host_t *my_host, host_t *other_host)
253 {
254 int id, certreq, force_encap;
255 char *local, *remote;
256
257 while (e->enumerate(e, &id, &certreq, &force_encap, &local, &remote))
258 {
259 ike_cfg_t *ike_cfg;
260
261 ike_cfg = ike_cfg_create(certreq, force_encap,
262 local, IKEV2_UDP_PORT, remote, IKEV2_UDP_PORT);
263 add_ike_proposals(this, ike_cfg, id);
264 return ike_cfg;
265 }
266 return NULL;
267 }
268
269 /**
270 * Query an IKE config by its id
271 */
272 static ike_cfg_t* get_ike_cfg_by_id(private_sql_config_t *this, int id)
273 {
274 enumerator_t *e;
275 ike_cfg_t *ike_cfg = NULL;
276
277 e = this->db->query(this->db,
278 "SELECT id, certreq, force_encap, local, remote "
279 "FROM ike_configs WHERE id = ?",
280 DB_INT, id,
281 DB_INT, DB_INT, DB_INT, DB_TEXT, DB_TEXT);
282 if (e)
283 {
284 ike_cfg = build_ike_cfg(this, e, NULL, NULL);
285 e->destroy(e);
286 }
287 return ike_cfg;
288 }
289
290 /**
291 * Query a peer config by its id
292 */
293 static peer_cfg_t *get_peer_cfg_by_id(private_sql_config_t *this, int id)
294 {
295 enumerator_t *e;
296 peer_cfg_t *peer_cfg = NULL;
297
298 e = this->db->query(this->db,
299 "SELECT c.id, name, ike_cfg, l.type, l.data, r.type, r.data, "
300 "cert_policy, uniqueid, auth_method, eap_type, eap_vendor, "
301 "keyingtries, rekeytime, reauthtime, jitter, overtime, mobike, "
302 "dpd_delay, virtual, pool, "
303 "mediation, mediated_by, COALESCE(p.type, 0), p.data "
304 "FROM peer_configs AS c "
305 "JOIN identities AS l ON local_id = l.id "
306 "JOIN identities AS r ON remote_id = r.id "
307 "LEFT JOIN identities AS p ON peer_id = p.id "
308 "WHERE id = ?",
309 DB_INT, id,
310 DB_INT, DB_TEXT, DB_INT, DB_INT, DB_BLOB, DB_INT, DB_BLOB,
311 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT,
312 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT, DB_INT,
313 DB_INT, DB_TEXT, DB_TEXT,
314 DB_INT, DB_INT, DB_INT, DB_BLOB);
315 if (e)
316 {
317 peer_cfg = build_peer_cfg(this, e, NULL, NULL);
318 e->destroy(e);
319 }
320 return peer_cfg;
321 }
322
323 /**
324 * Build a peer config from an SQL query
325 */
326 static peer_cfg_t *build_peer_cfg(private_sql_config_t *this, enumerator_t *e,
327 identification_t *me, identification_t *other)
328 {
329 int id, ike_cfg, l_type, r_type,
330 cert_policy, uniqueid, auth_method, eap_type, eap_vendor, keyingtries,
331 rekeytime, reauthtime, jitter, overtime, mobike, dpd_delay,
332 mediation, mediated_by, p_type;
333 chunk_t l_data, r_data, p_data;
334 char *name, *virtual, *pool;
335
336 while (e->enumerate(e,
337 &id, &name, &ike_cfg, &l_type, &l_data, &r_type, &r_data,
338 &cert_policy, &uniqueid, &auth_method, &eap_type, &eap_vendor,
339 &keyingtries, &rekeytime, &reauthtime, &jitter, &overtime, &mobike,
340 &dpd_delay, &virtual, &pool,
341 &mediation, &mediated_by, &p_type, &p_data))
342 {
343 identification_t *local_id, *remote_id, *peer_id = NULL;
344 peer_cfg_t *peer_cfg, *mediated_cfg;
345 ike_cfg_t *ike;
346 host_t *vip = NULL;
347 auth_cfg_t *auth;
348
349 local_id = identification_create_from_encoding(l_type, l_data);
350 remote_id = identification_create_from_encoding(r_type, r_data);
351 if ((me && !me->matches(me, local_id)) ||
352 (other && !other->matches(other, remote_id)))
353 {
354 local_id->destroy(local_id);
355 remote_id->destroy(remote_id);
356 continue;
357 }
358 ike = get_ike_cfg_by_id(this, ike_cfg);
359 mediated_cfg = mediated_by ? get_peer_cfg_by_id(this, mediated_by) : NULL;
360 if (p_type)
361 {
362 peer_id = identification_create_from_encoding(p_type, p_data);
363 }
364 if (virtual)
365 {
366 vip = host_create_from_string(virtual, 0);
367 }
368 if (ike)
369 {
370 peer_cfg = peer_cfg_create(
371 name, 2, ike, cert_policy, uniqueid,
372 keyingtries, rekeytime, reauthtime, jitter, overtime,
373 mobike, dpd_delay, vip, pool,
374 mediation, mediated_cfg, peer_id);
375 auth = auth_cfg_create();
376 auth->add(auth, AUTH_RULE_AUTH_CLASS, auth_method);
377 auth->add(auth, AUTH_RULE_IDENTITY, local_id);
378 peer_cfg->add_auth_cfg(peer_cfg, auth, TRUE);
379 auth = auth_cfg_create();
380 auth->add(auth, AUTH_RULE_IDENTITY, remote_id);
381 if (eap_type)
382 {
383 auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_EAP);
384 auth->add(auth, AUTH_RULE_EAP_TYPE, eap_type);
385 if (eap_vendor)
386 {
387 auth->add(auth, AUTH_RULE_EAP_VENDOR, eap_vendor);
388 }
389 }
390 peer_cfg->add_auth_cfg(peer_cfg, auth, FALSE);
391 add_child_cfgs(this, peer_cfg, id);
392 return peer_cfg;
393 }
394 DESTROY_IF(ike);
395 DESTROY_IF(mediated_cfg);
396 DESTROY_IF(peer_id);
397 DESTROY_IF(local_id);
398 DESTROY_IF(remote_id);
399 }
400 return NULL;
401 }
402
403 METHOD(backend_t, get_peer_cfg_by_name, peer_cfg_t*,
404 private_sql_config_t *this, char *name)
405 {
406 enumerator_t *e;
407 peer_cfg_t *peer_cfg = NULL;
408
409 e = this->db->query(this->db,
410 "SELECT c.id, name, ike_cfg, l.type, l.data, r.type, r.data, "
411 "cert_policy, uniqueid, auth_method, eap_type, eap_vendor, "
412 "keyingtries, rekeytime, reauthtime, jitter, overtime, mobike, "
413 "dpd_delay, virtual, pool, "
414 "mediation, mediated_by, COALESCE(p.type, 0), p.data "
415 "FROM peer_configs AS c "
416 "JOIN identities AS l ON local_id = l.id "
417 "JOIN identities AS r ON remote_id = r.id "
418 "LEFT JOIN identities AS p ON peer_id = p.id "
419 "WHERE ike_version = ? AND name = ?",
420 DB_INT, 2, DB_TEXT, name,
421 DB_INT, DB_TEXT, DB_INT, DB_INT, DB_BLOB, DB_INT, DB_BLOB,
422 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT,
423 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT, DB_INT,
424 DB_INT, DB_TEXT, DB_TEXT,
425 DB_INT, DB_INT, DB_INT, DB_BLOB);
426 if (e)
427 {
428 peer_cfg = build_peer_cfg(this, e, NULL, NULL);
429 e->destroy(e);
430 }
431 return peer_cfg;
432 }
433
434 typedef struct {
435 /** implements enumerator */
436 enumerator_t public;
437 /** reference to context */
438 private_sql_config_t *this;
439 /** filtering own host */
440 host_t *me;
441 /** filtering remote host */
442 host_t *other;
443 /** inner SQL enumerator */
444 enumerator_t *inner;
445 /** currently enumerated peer config */
446 ike_cfg_t *current;
447 } ike_enumerator_t;
448
449 /**
450 * Implementation of ike_enumerator_t.public.enumerate
451 */
452 static bool ike_enumerator_enumerate(ike_enumerator_t *this, ike_cfg_t **cfg)
453 {
454 DESTROY_IF(this->current);
455 this->current = build_ike_cfg(this->this, this->inner, this->me, this->other);
456 if (this->current)
457 {
458 *cfg = this->current;
459 return TRUE;
460 }
461 return FALSE;
462 }
463
464 /**
465 * Implementation of ike_enumerator_t.public.destroy
466 */
467 static void ike_enumerator_destroy(ike_enumerator_t *this)
468 {
469 DESTROY_IF(this->current);
470 this->inner->destroy(this->inner);
471 free(this);
472 }
473
474 METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*,
475 private_sql_config_t *this, host_t *me, host_t *other)
476 {
477 ike_enumerator_t *e = malloc_thing(ike_enumerator_t);
478
479 e->this = this;
480 e->me = me;
481 e->other = other;
482 e->current = NULL;
483 e->public.enumerate = (void*)ike_enumerator_enumerate;
484 e->public.destroy = (void*)ike_enumerator_destroy;
485
486 e->inner = this->db->query(this->db,
487 "SELECT id, certreq, force_encap, local, remote "
488 "FROM ike_configs",
489 DB_INT, DB_INT, DB_INT, DB_TEXT, DB_TEXT);
490 if (!e->inner)
491 {
492 free(e);
493 return NULL;
494 }
495 return &e->public;
496 }
497
498
499 typedef struct {
500 /** implements enumerator */
501 enumerator_t public;
502 /** reference to context */
503 private_sql_config_t *this;
504 /** filtering own identity */
505 identification_t *me;
506 /** filtering remote identity */
507 identification_t *other;
508 /** inner SQL enumerator */
509 enumerator_t *inner;
510 /** currently enumerated peer config */
511 peer_cfg_t *current;
512 } peer_enumerator_t;
513
514 /**
515 * Implementation of peer_enumerator_t.public.enumerate
516 */
517 static bool peer_enumerator_enumerate(peer_enumerator_t *this, peer_cfg_t **cfg)
518 {
519 DESTROY_IF(this->current);
520 this->current = build_peer_cfg(this->this, this->inner, this->me, this->other);
521 if (this->current)
522 {
523 *cfg = this->current;
524 return TRUE;
525 }
526 return FALSE;
527 }
528
529 /**
530 * Implementation of peer_enumerator_t.public.destroy
531 */
532 static void peer_enumerator_destroy(peer_enumerator_t *this)
533 {
534 DESTROY_IF(this->current);
535 this->inner->destroy(this->inner);
536 free(this);
537 }
538
539 METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*,
540 private_sql_config_t *this, identification_t *me, identification_t *other)
541 {
542 peer_enumerator_t *e = malloc_thing(peer_enumerator_t);
543
544 e->this = this;
545 e->me = me;
546 e->other = other;
547 e->current = NULL;
548 e->public.enumerate = (void*)peer_enumerator_enumerate;
549 e->public.destroy = (void*)peer_enumerator_destroy;
550
551 /* TODO: only get configs whose IDs match exactly or contain wildcards */
552 e->inner = this->db->query(this->db,
553 "SELECT c.id, name, ike_cfg, l.type, l.data, r.type, r.data, "
554 "cert_policy, uniqueid, auth_method, eap_type, eap_vendor, "
555 "keyingtries, rekeytime, reauthtime, jitter, overtime, mobike, "
556 "dpd_delay, virtual, pool, "
557 "mediation, mediated_by, COALESCE(p.type, 0), p.data "
558 "FROM peer_configs AS c "
559 "JOIN identities AS l ON local_id = l.id "
560 "JOIN identities AS r ON remote_id = r.id "
561 "LEFT JOIN identities AS p ON peer_id = p.id "
562 "WHERE ike_version = ?",
563 DB_INT, 2,
564 DB_INT, DB_TEXT, DB_INT, DB_INT, DB_BLOB, DB_INT, DB_BLOB,
565 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT,
566 DB_INT, DB_INT, DB_INT, DB_INT, DB_INT, DB_INT,
567 DB_INT, DB_TEXT, DB_TEXT,
568 DB_INT, DB_INT, DB_INT, DB_BLOB);
569 if (!e->inner)
570 {
571 free(e);
572 return NULL;
573 }
574 return &e->public;
575 }
576
577 METHOD(sql_config_t, destroy, void,
578 private_sql_config_t *this)
579 {
580 free(this);
581 }
582
583 /**
584 * Described in header.
585 */
586 sql_config_t *sql_config_create(database_t *db)
587 {
588 private_sql_config_t *this;
589
590 INIT(this,
591 .public = {
592 .backend = {
593 .create_peer_cfg_enumerator = _create_peer_cfg_enumerator,
594 .create_ike_cfg_enumerator = _create_ike_cfg_enumerator,
595 .get_peer_cfg_by_name = _get_peer_cfg_by_name,
596 },
597 .destroy = _destroy,
598 },
599 .db = db
600 );
601
602 return &this->public;
603 }
604