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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	sbin/isakmpd/connection.c	Lines:	0	153	0.0 %
Date:	2016-12-06	Branches:	0	102	0.0 %


/* $OpenBSD: connection.c,v 1.37 2014/01/22 03:09:31 deraadt Exp $	 */
/* $EOM: connection.c,v 1.28 2000/11/23 12:21:18 niklas Exp $	 */

/*
 * Copyright (c) 1999, 2000, 2001 Niklas Hallqvist.  All rights reserved.
 * Copyright (c) 1999 Hakan Olsson.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This code was written under funding by Ericsson Radio Systems.
 */

#include <sys/queue.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <string.h>

#include "conf.h"
#include "connection.h"
#include "doi.h"
#include "ipsec.h"
#include "pf_key_v2.h"

/* XXX isakmp.h only required for compare_ids().  */
#include "isakmp.h"

#include "log.h"
#include "timer.h"
#include "ui.h"
#include "util.h"

/* How often should we check that connections we require to be up, are up?  */
#define CHECK_INTERVAL 60

static void     connection_passive_teardown(char *);

struct connection {
	TAILQ_ENTRY(connection) link;
	char           *name;
	struct event   *ev;
};

struct connection_passive {
	TAILQ_ENTRY(connection_passive) link;
	char           *name;
	u_int8_t       *local_id, *remote_id;
	size_t          local_sz, remote_sz;

#if 0
	/* XXX Potential additions to 'connection_passive'.  */
	char           *isakmp_peer;
	struct sa      *sa;	/* XXX "Soft" ref to active sa?  */
	struct timeval  sa_expiration;	/* XXX *sa may expire.  */
#endif
};

TAILQ_HEAD(connection_head, connection) connections;
TAILQ_HEAD(passive_head, connection_passive) connections_passive;

/*
 * This is where we setup all the connections we want there right from the
 * start.
 */
void
connection_init(void)
{
	struct conf_list *conns, *attrs;
	struct conf_list_node *conn, *attr = NULL;

	/*
	 * Passive connections normally include: all "active" connections that
	 * are not flagged "Active-Only", plus all connections listed in
	 * the 'Passive-Connections' list.
         */
	TAILQ_INIT(&connections);
	TAILQ_INIT(&connections_passive);

	conns = conf_get_list("Phase 2", "Connections");
	if (conns) {
		for (conn = TAILQ_FIRST(&conns->fields); conn;
		    conn = TAILQ_NEXT(conn, link)) {
			if (connection_setup(conn->field))
				log_print("connection_init: could not setup "
				    "\"%s\"", conn->field);

			/* XXX Break/abort here if connection_setup failed?  */

			/*
			 * XXX This code (i.e. the attribute lookup) seems
			 * like a likely candidate for factoring out into a
			 * function of its own.
			 */
			attrs = conf_get_list(conn->field, "Flags");
			if (attrs)
				for (attr = TAILQ_FIRST(&attrs->fields); attr;
				    attr = TAILQ_NEXT(attr, link))
					if (strcasecmp("active-only",
					    attr->field) == 0)
						break;
			if (!attrs || (attrs && !attr))
				if (connection_record_passive(conn->field))
					log_print("connection_init: could not "
					    "record connection \"%s\"",
					    conn->field);
			if (attrs)
				conf_free_list(attrs);

		}
		conf_free_list(conns);
	}
	conns = conf_get_list("Phase 2", "Passive-Connections");
	if (conns) {
		for (conn = TAILQ_FIRST(&conns->fields); conn;
		    conn = TAILQ_NEXT(conn, link))
			if (connection_record_passive(conn->field))
				log_print("connection_init: could not record "
				    "passive connection \"%s\"", conn->field);
		conf_free_list(conns);
	}
}

/* Check the connection in VCONN and schedule another check later.  */
static void
connection_checker(void *vconn)
{
	struct timeval  now;
	struct connection *conn = vconn;

	gettimeofday(&now, 0);
	now.tv_sec += conf_get_num("General", "check-interval",
	    CHECK_INTERVAL);
	conn->ev = timer_add_event("connection_checker",
	    connection_checker, conn, &now);
	if (!conn->ev)
		log_print("connection_checker: could not add timer event");
	if (!ui_daemon_passive)
		pf_key_v2_connection_check(conn->name);
}

/* Find the connection named NAME.  */
static struct connection *
connection_lookup(char *name)
{
	struct connection *conn;

	for (conn = TAILQ_FIRST(&connections); conn;
	    conn = TAILQ_NEXT(conn, link))
		if (strcasecmp(conn->name, name) == 0)
			return conn;
	return 0;
}

/* Does the connection named NAME exist?  */
int
connection_exist(char *name)
{
	return (connection_lookup(name) != 0);
}

/* Find the passive connection named NAME.  */
static struct connection_passive *
connection_passive_lookup_by_name(char *name)
{
	struct connection_passive *conn;

	for (conn = TAILQ_FIRST(&connections_passive); conn;
	    conn = TAILQ_NEXT(conn, link))
		if (strcasecmp(conn->name, name) == 0)
			return conn;
	return 0;
}

/*
 * IDs of different types cannot be the same.
 * XXX Rename to ipsec_compare_id, and move to ipsec.c ?
 */
static int
compare_ids(u_int8_t *id1, u_int8_t *id2, size_t idlen)
{
	int	id1_type, id2_type;

	id1_type = GET_ISAKMP_ID_TYPE(id1);
	id2_type = GET_ISAKMP_ID_TYPE(id2);

	return id1_type == id2_type ? memcmp(id1 + ISAKMP_ID_DATA_OFF,
	    id2 + ISAKMP_ID_DATA_OFF, idlen - ISAKMP_ID_DATA_OFF) : -1;
}

/* Find the connection named with matching IDs.  */
char *
connection_passive_lookup_by_ids(u_int8_t *id1, u_int8_t *id2)
{
	struct connection_passive *conn;

	for (conn = TAILQ_FIRST(&connections_passive); conn;
	    conn = TAILQ_NEXT(conn, link)) {
		if (!conn->remote_id)
			continue;

		/*
		 * If both IDs match what we have saved, return the name.
		 * Don't bother in which order they are.
		 */
		if ((compare_ids(id1, conn->local_id, conn->local_sz) == 0 &&
		    compare_ids(id2, conn->remote_id, conn->remote_sz) == 0) ||
		    (compare_ids(id1, conn->remote_id, conn->remote_sz) == 0 &&
		    compare_ids(id2, conn->local_id, conn->local_sz) == 0)) {
			LOG_DBG((LOG_MISC, 60,
			    "connection_passive_lookup_by_ids: "
			    "returned \"%s\"", conn->name));
			return conn->name;
		}
	}

	/*
	 * In the road warrior case, we do not know the remote ID. In that
	 * case we will just match against the local ID.
	 */
	for (conn = TAILQ_FIRST(&connections_passive); conn;
	    conn = TAILQ_NEXT(conn, link)) {
		if (!conn->remote_id)
			continue;

		if (compare_ids(id1, conn->local_id, conn->local_sz) == 0 ||
		    compare_ids(id2, conn->local_id, conn->local_sz) == 0) {
			LOG_DBG((LOG_MISC, 60,
			    "connection_passive_lookup_by_ids: returned \"%s\""
			    " only matched local id", conn->name));
			return conn->name;
		}
	}
	LOG_DBG((LOG_MISC, 60,
	    "connection_passive_lookup_by_ids: no match"));
	return 0;
}

/*
 * Setup NAME to be a connection that should be up "always", i.e. if it dies,
 * for whatever reason, it should be tried to be brought up, over and over
 * again.
 */
int
connection_setup(char *name)
{
	struct connection *conn = 0;
	struct timeval  now;

	/* Check for trials to add duplicate connections.  */
	if (connection_lookup(name)) {
		LOG_DBG((LOG_MISC, 10,
		    "connection_setup: cannot add \"%s\" twice", name));
		return 0;
	}
	conn = calloc(1, sizeof *conn);
	if (!conn) {
		log_error("connection_setup: calloc (1, %lu) failed",
		    (unsigned long)sizeof *conn);
		goto fail;
	}
	conn->name = strdup(name);
	if (!conn->name) {
		log_error("connection_setup: strdup (\"%s\") failed", name);
		goto fail;
	}
	gettimeofday(&now, 0);
	conn->ev = timer_add_event("connection_checker", connection_checker,
	    conn, &now);
	if (!conn->ev) {
		log_print("connection_setup: could not add timer event");
		goto fail;
	}
	TAILQ_INSERT_TAIL(&connections, conn, link);
	return 0;

fail:
	if (conn) {
		free(conn->name);
		free(conn);
	}
	return -1;
}

int
connection_record_passive(char *name)
{
	struct connection_passive *conn;
	char           *local_id, *remote_id;

	if (connection_passive_lookup_by_name(name)) {
		LOG_DBG((LOG_MISC, 10,
		    "connection_record_passive: cannot add \"%s\" twice",
		    name));
		return 0;
	}
	local_id = conf_get_str(name, "Local-ID");
	if (!local_id) {
		log_print("connection_record_passive: "
		    "\"Local-ID\" is missing from section [%s]", name);
		return -1;
	}
	/* If the remote id lookup fails we defer it to later */
	remote_id = conf_get_str(name, "Remote-ID");

	conn = calloc(1, sizeof *conn);
	if (!conn) {
		log_error("connection_record_passive: calloc (1, %lu) failed",
		    (unsigned long)sizeof *conn);
		return -1;
	}
	conn->name = strdup(name);
	if (!conn->name) {
		log_error("connection_record_passive: strdup (\"%s\") failed",
		    name);
		goto fail;
	}
	/* XXX IPsec DOI-specific.  */
	conn->local_id = ipsec_build_id(local_id, &conn->local_sz);
	if (!conn->local_id)
		goto fail;

	if (remote_id) {
		conn->remote_id = ipsec_build_id(remote_id, &conn->remote_sz);
		if (!conn->remote_id)
			goto fail;
	} else
		conn->remote_id = 0;

	TAILQ_INSERT_TAIL(&connections_passive, conn, link);

	LOG_DBG((LOG_MISC, 60,
	    "connection_record_passive: passive connection \"%s\" added",
	    conn->name));
	return 0;

fail:
	free(conn->local_id);
	free(conn->name);
	free(conn);
	return -1;
}

/* Remove the connection named NAME.  */
void
connection_teardown(char *name)
{
	struct connection *conn;

	conn = connection_lookup(name);
	if (!conn)
		return;

	TAILQ_REMOVE(&connections, conn, link);
	timer_remove_event(conn->ev);
	free(conn->name);
	free(conn);
}

/* Remove the passive connection named NAME.  */
static void
connection_passive_teardown(char *name)
{
	struct connection_passive *conn;

	conn = connection_passive_lookup_by_name(name);
	if (!conn)
		return;

	TAILQ_REMOVE(&connections_passive, conn, link);
	free(conn->name);
	free(conn->local_id);
	free(conn->remote_id);
	free(conn);
}

void
connection_report(void)
{
	struct connection *conn;
	struct timeval  now;
	struct connection_passive *pconn;
	struct doi     *doi = doi_lookup(ISAKMP_DOI_ISAKMP);

	gettimeofday(&now, 0);
	for (conn = TAILQ_FIRST(&connections); conn;
	    conn = TAILQ_NEXT(conn, link))
		LOG_DBG((LOG_REPORT, 0,
		    "connection_report: connection %s next check %lld seconds",
		    (conn->name ? conn->name : "<unnamed>"),
		    (long long)(conn->ev->expiration.tv_sec - now.tv_sec)));
	for (pconn = TAILQ_FIRST(&connections_passive); pconn;
	    pconn = TAILQ_NEXT(pconn, link))
		LOG_DBG((LOG_REPORT, 0,
		    "connection_report: passive connection %s %s", pconn->name,
		    doi->decode_ids("local_id: %s, remote_id: %s",
		    pconn->local_id, pconn->local_sz,
		    pconn->remote_id, pconn->remote_sz, 1)));
}

/* Reinitialize all connections (SIGHUP handling).  */
void
connection_reinit(void)
{
	struct connection *conn, *next;
	struct connection_passive *pconn, *pnext;

	LOG_DBG((LOG_MISC, 30,
	    "connection_reinit: reinitializing connection list"));

	/* Remove all present connections.  */
	for (conn = TAILQ_FIRST(&connections); conn; conn = next) {
		next = TAILQ_NEXT(conn, link);
		connection_teardown(conn->name);
	}

	for (pconn = TAILQ_FIRST(&connections_passive); pconn; pconn = pnext) {
		pnext = TAILQ_NEXT(pconn, link);
		connection_passive_teardown(pconn->name);
	}

	/* Setup new connections, as the (new) config directs.  */
	connection_init();
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: connection.c,v 1.37 2014/01/22 03:09:31 deraadt Exp $ */
2			/* $EOM: connection.c,v 1.28 2000/11/23 12:21:18 niklas Exp $ */
3
4			/*
5			* Copyright (c) 1999, 2000, 2001 Niklas Hallqvist. All rights reserved.
6			* Copyright (c) 1999 Hakan Olsson. All rights reserved.
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 ``AS IS'' AND ANY EXPRESS OR
18			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27			*/
28
29			/*
30			* This code was written under funding by Ericsson Radio Systems.
31			*/
32
33			#include <sys/queue.h>
34			#include <sys/time.h>
35			#include <sys/socket.h>
36			#include <stdlib.h>
37			#include <string.h>
38
39			#include "conf.h"
40			#include "connection.h"
41			#include "doi.h"
42			#include "ipsec.h"
43			#include "pf_key_v2.h"
44
45			/* XXX isakmp.h only required for compare_ids(). */
46			#include "isakmp.h"
47
48			#include "log.h"
49			#include "timer.h"
50			#include "ui.h"
51			#include "util.h"
52
53			/* How often should we check that connections we require to be up, are up? */
54			#define CHECK_INTERVAL 60
55
56			static void connection_passive_teardown(char *);
57
58			struct connection {
59			TAILQ_ENTRY(connection) link;
60			char *name;
61			struct event *ev;
62			};
63
64			struct connection_passive {
65			TAILQ_ENTRY(connection_passive) link;
66			char *name;
67			u_int8_t local_id, remote_id;
68			size_t local_sz, remote_sz;
69
70			#if 0
71			/* XXX Potential additions to 'connection_passive'. */
72			char *isakmp_peer;
73			struct sa sa; / XXX "Soft" ref to active sa? */
74			struct timeval sa_expiration; /* XXX sa may expire. /
75			#endif
76			};
77
78			TAILQ_HEAD(connection_head, connection) connections;
79			TAILQ_HEAD(passive_head, connection_passive) connections_passive;
80
81			/*
82			* This is where we setup all the connections we want there right from the
83			* start.
84			*/
85			void
86			connection_init(void)
87			{
88			struct conf_list conns, attrs;
89			struct conf_list_node conn, attr = NULL;
90
91			/*
92			* Passive connections normally include: all "active" connections that
93			* are not flagged "Active-Only", plus all connections listed in
94			* the 'Passive-Connections' list.
95			*/
96			TAILQ_INIT(&connections);
97			TAILQ_INIT(&connections_passive);
98
99			conns = conf_get_list("Phase 2", "Connections");
100			if (conns) {
101			for (conn = TAILQ_FIRST(&conns->fields); conn;
102			conn = TAILQ_NEXT(conn, link)) {
103			if (connection_setup(conn->field))
104			log_print("connection_init: could not setup "
105			"\"%s\"", conn->field);
106
107			/* XXX Break/abort here if connection_setup failed? */
108
109			/*
110			* XXX This code (i.e. the attribute lookup) seems
111			* like a likely candidate for factoring out into a
112			* function of its own.
113			*/
114			attrs = conf_get_list(conn->field, "Flags");
115			if (attrs)
116			for (attr = TAILQ_FIRST(&attrs->fields); attr;
117			attr = TAILQ_NEXT(attr, link))
118			if (strcasecmp("active-only",
119			attr->field) == 0)
120			break;
121			if (!attrs \|\| (attrs && !attr))
122			if (connection_record_passive(conn->field))
123			log_print("connection_init: could not "
124			"record connection \"%s\"",
125			conn->field);
126			if (attrs)
127			conf_free_list(attrs);
128
129			}
130			conf_free_list(conns);
131			}
132			conns = conf_get_list("Phase 2", "Passive-Connections");
133			if (conns) {
134			for (conn = TAILQ_FIRST(&conns->fields); conn;
135			conn = TAILQ_NEXT(conn, link))
136			if (connection_record_passive(conn->field))
137			log_print("connection_init: could not record "
138			"passive connection \"%s\"", conn->field);
139			conf_free_list(conns);
140			}
141			}
142
143			/* Check the connection in VCONN and schedule another check later. */
144			static void
145			connection_checker(void *vconn)
146			{
147			struct timeval now;
148			struct connection *conn = vconn;
149
150			gettimeofday(&now, 0);
151			now.tv_sec += conf_get_num("General", "check-interval",
152			CHECK_INTERVAL);
153			conn->ev = timer_add_event("connection_checker",
154			connection_checker, conn, &now);
155			if (!conn->ev)
156			log_print("connection_checker: could not add timer event");
157			if (!ui_daemon_passive)
158			pf_key_v2_connection_check(conn->name);
159			}
160
161			/* Find the connection named NAME. */
162			static struct connection *
163			connection_lookup(char *name)
164			{
165			struct connection *conn;
166
167			for (conn = TAILQ_FIRST(&connections); conn;
168			conn = TAILQ_NEXT(conn, link))
169			if (strcasecmp(conn->name, name) == 0)
170			return conn;
171			return 0;
172			}
173
174			/* Does the connection named NAME exist? */
175			int
176			connection_exist(char *name)
177			{
178			return (connection_lookup(name) != 0);
179			}
180
181			/* Find the passive connection named NAME. */
182			static struct connection_passive *
183			connection_passive_lookup_by_name(char *name)
184			{
185			struct connection_passive *conn;
186
187			for (conn = TAILQ_FIRST(&connections_passive); conn;
188			conn = TAILQ_NEXT(conn, link))
189			if (strcasecmp(conn->name, name) == 0)
190			return conn;
191			return 0;
192			}
193
194			/*
195			* IDs of different types cannot be the same.
196			* XXX Rename to ipsec_compare_id, and move to ipsec.c ?
197			*/
198			static int
199			compare_ids(u_int8_t id1, u_int8_t id2, size_t idlen)
200			{
201			int id1_type, id2_type;
202
203			id1_type = GET_ISAKMP_ID_TYPE(id1);
204			id2_type = GET_ISAKMP_ID_TYPE(id2);
205
206			return id1_type == id2_type ? memcmp(id1 + ISAKMP_ID_DATA_OFF,
207			id2 + ISAKMP_ID_DATA_OFF, idlen - ISAKMP_ID_DATA_OFF) : -1;
208			}
209
210			/* Find the connection named with matching IDs. */
211			char *
212			connection_passive_lookup_by_ids(u_int8_t id1, u_int8_t id2)
213			{
214			struct connection_passive *conn;
215
216			for (conn = TAILQ_FIRST(&connections_passive); conn;
217			conn = TAILQ_NEXT(conn, link)) {
218			if (!conn->remote_id)
219			continue;
220
221			/*
222			* If both IDs match what we have saved, return the name.
223			* Don't bother in which order they are.
224			*/
225			if ((compare_ids(id1, conn->local_id, conn->local_sz) == 0 &&
226			compare_ids(id2, conn->remote_id, conn->remote_sz) == 0) \|\|
227			(compare_ids(id1, conn->remote_id, conn->remote_sz) == 0 &&
228			compare_ids(id2, conn->local_id, conn->local_sz) == 0)) {
229			LOG_DBG((LOG_MISC, 60,
230			"connection_passive_lookup_by_ids: "
231			"returned \"%s\"", conn->name));
232			return conn->name;
233			}
234			}
235
236			/*
237			* In the road warrior case, we do not know the remote ID. In that
238			* case we will just match against the local ID.
239			*/
240			for (conn = TAILQ_FIRST(&connections_passive); conn;
241			conn = TAILQ_NEXT(conn, link)) {
242			if (!conn->remote_id)
243			continue;
244
245			if (compare_ids(id1, conn->local_id, conn->local_sz) == 0 \|\|
246			compare_ids(id2, conn->local_id, conn->local_sz) == 0) {
247			LOG_DBG((LOG_MISC, 60,
248			"connection_passive_lookup_by_ids: returned \"%s\""
249			" only matched local id", conn->name));
250			return conn->name;
251			}
252			}
253			LOG_DBG((LOG_MISC, 60,
254			"connection_passive_lookup_by_ids: no match"));
255			return 0;
256			}
257
258			/*
259			* Setup NAME to be a connection that should be up "always", i.e. if it dies,
260			* for whatever reason, it should be tried to be brought up, over and over
261			* again.
262			*/
263			int
264			connection_setup(char *name)
265			{
266			struct connection *conn = 0;
267			struct timeval now;
268
269			/* Check for trials to add duplicate connections. */
270			if (connection_lookup(name)) {
271			LOG_DBG((LOG_MISC, 10,
272			"connection_setup: cannot add \"%s\" twice", name));
273			return 0;
274			}
275			conn = calloc(1, sizeof *conn);
276			if (!conn) {
277			log_error("connection_setup: calloc (1, %lu) failed",
278			(unsigned long)sizeof *conn);
279			goto fail;
280			}
281			conn->name = strdup(name);
282			if (!conn->name) {
283			log_error("connection_setup: strdup (\"%s\") failed", name);
284			goto fail;
285			}
286			gettimeofday(&now, 0);
287			conn->ev = timer_add_event("connection_checker", connection_checker,
288			conn, &now);
289			if (!conn->ev) {
290			log_print("connection_setup: could not add timer event");
291			goto fail;
292			}
293			TAILQ_INSERT_TAIL(&connections, conn, link);
294			return 0;
295
296			fail:
297			if (conn) {
298			free(conn->name);
299			free(conn);
300			}
301			return -1;
302			}
303
304			int
305			connection_record_passive(char *name)
306			{
307			struct connection_passive *conn;
308			char local_id, remote_id;
309
310			if (connection_passive_lookup_by_name(name)) {
311			LOG_DBG((LOG_MISC, 10,
312			"connection_record_passive: cannot add \"%s\" twice",
313			name));
314			return 0;
315			}
316			local_id = conf_get_str(name, "Local-ID");
317			if (!local_id) {
318			log_print("connection_record_passive: "
319			"\"Local-ID\" is missing from section [%s]", name);
320			return -1;
321			}
322			/* If the remote id lookup fails we defer it to later */
323			remote_id = conf_get_str(name, "Remote-ID");
324
325			conn = calloc(1, sizeof *conn);
326			if (!conn) {
327			log_error("connection_record_passive: calloc (1, %lu) failed",
328			(unsigned long)sizeof *conn);
329			return -1;
330			}
331			conn->name = strdup(name);
332			if (!conn->name) {
333			log_error("connection_record_passive: strdup (\"%s\") failed",
334			name);
335			goto fail;
336			}
337			/* XXX IPsec DOI-specific. */
338			conn->local_id = ipsec_build_id(local_id, &conn->local_sz);
339			if (!conn->local_id)
340			goto fail;
341
342			if (remote_id) {
343			conn->remote_id = ipsec_build_id(remote_id, &conn->remote_sz);
344			if (!conn->remote_id)
345			goto fail;
346			} else
347			conn->remote_id = 0;
348
349			TAILQ_INSERT_TAIL(&connections_passive, conn, link);
350
351			LOG_DBG((LOG_MISC, 60,
352			"connection_record_passive: passive connection \"%s\" added",
353			conn->name));
354			return 0;
355
356			fail:
357			free(conn->local_id);
358			free(conn->name);
359			free(conn);
360			return -1;
361			}
362
363			/* Remove the connection named NAME. */
364			void
365			connection_teardown(char *name)
366			{
367			struct connection *conn;
368
369			conn = connection_lookup(name);
370			if (!conn)
371			return;
372
373			TAILQ_REMOVE(&connections, conn, link);
374			timer_remove_event(conn->ev);
375			free(conn->name);
376			free(conn);
377			}
378
379			/* Remove the passive connection named NAME. */
380			static void
381			connection_passive_teardown(char *name)
382			{
383			struct connection_passive *conn;
384
385			conn = connection_passive_lookup_by_name(name);
386			if (!conn)
387			return;
388
389			TAILQ_REMOVE(&connections_passive, conn, link);
390			free(conn->name);
391			free(conn->local_id);
392			free(conn->remote_id);
393			free(conn);
394			}
395
396			void
397			connection_report(void)
398			{
399			struct connection *conn;
400			struct timeval now;
401			struct connection_passive *pconn;
402			struct doi *doi = doi_lookup(ISAKMP_DOI_ISAKMP);
403
404			gettimeofday(&now, 0);
405			for (conn = TAILQ_FIRST(&connections); conn;
406			conn = TAILQ_NEXT(conn, link))
407			LOG_DBG((LOG_REPORT, 0,
408			"connection_report: connection %s next check %lld seconds",
409			(conn->name ? conn->name : "<unnamed>"),
410			(long long)(conn->ev->expiration.tv_sec - now.tv_sec)));
411			for (pconn = TAILQ_FIRST(&connections_passive); pconn;
412			pconn = TAILQ_NEXT(pconn, link))
413			LOG_DBG((LOG_REPORT, 0,
414			"connection_report: passive connection %s %s", pconn->name,
415			doi->decode_ids("local_id: %s, remote_id: %s",
416			pconn->local_id, pconn->local_sz,
417			pconn->remote_id, pconn->remote_sz, 1)));
418			}
419
420			/* Reinitialize all connections (SIGHUP handling). */
421			void
422			connection_reinit(void)
423			{
424			struct connection conn, next;
425			struct connection_passive pconn, pnext;
426
427			LOG_DBG((LOG_MISC, 30,
428			"connection_reinit: reinitializing connection list"));
429
430			/* Remove all present connections. */
431			for (conn = TAILQ_FIRST(&connections); conn; conn = next) {
432			next = TAILQ_NEXT(conn, link);
433			connection_teardown(conn->name);
434			}
435
436			for (pconn = TAILQ_FIRST(&connections_passive); pconn; pconn = pnext) {
437			pnext = TAILQ_NEXT(pconn, link);
438			connection_passive_teardown(pconn->name);
439			}
440
441			/* Setup new connections, as the (new) config directs. */
442			connection_init();
443			}