src/racoon/evt.c - platform/external/ipsec-tools - Git at Google

 /*	$NetBSD: evt.c,v 1.10 2010/10/21 06:15:28 tteras Exp $	*/

 /* Id: evt.c,v 1.5 2006/06/22 20:11:35 manubsd Exp */

 /*
  * Copyright (C) 2004 Emmanuel Dreyfus
  * Copyright (C) 2008 Timo Teras
  * 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.
  * 3. Neither the name of the project nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
  */

 #include "config.h"

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

 #include "vmbuf.h"
 #include "plog.h"
 #include "misc.h"
 #include "admin.h"
 #include "handler.h"
 #include "session.h"
 #include "gcmalloc.h"
 #include "evt.h"
 #include "var.h"

 #ifdef ENABLE_ADMINPORT

 static EVT_LISTENER_LIST(evt_listeners);

 struct evt_message {
 	struct admin_com adm;
 	struct evt_async evt;
 };

 struct evt {
 	struct evtdump *dump;
 	TAILQ_ENTRY(evt) next;
 };

 TAILQ_HEAD(evtlist, evt);

 #define EVTLIST_MAX	32

 static struct evtlist evtlist = TAILQ_HEAD_INITIALIZER(evtlist);
 static int evtlist_len = 0;
 static int evtlist_inuse = 0;

 static struct {
 	int newtype, oldtype;
 } evttype_map[] = {
 	{ EVT_RACOON_QUIT,		EVTT_RACOON_QUIT },
 	{ EVT_PHASE1_UP,		EVTT_PHASE1_UP },
 	{ EVT_PHASE1_DOWN,		EVTT_PHASE1_DOWN },
 	{ EVT_PHASE1_NO_RESPONSE,	EVTT_PEER_NO_RESPONSE },
 	{ EVT_PHASE1_NO_PROPOSAL,	EVTT_PEERPH1_NOPROP },
 	{ EVT_PHASE1_AUTH_FAILED,	EVTT_PEERPH1AUTH_FAILED },
 	{ EVT_PHASE1_DPD_TIMEOUT,	EVTT_DPD_TIMEOUT },
 	{ EVT_PHASE1_PEER_DELETED,	EVTT_PEER_DELETE },
 	{ EVT_PHASE1_MODE_CFG,		EVTT_ISAKMP_CFG_DONE },
 	{ EVT_PHASE1_XAUTH_SUCCESS,	EVTT_XAUTH_SUCCESS },
 	{ EVT_PHASE1_XAUTH_FAILED,	EVTT_XAUTH_FAILED },
 	{ EVT_PHASE2_NO_PHASE1,		-1 },
 	{ EVT_PHASE2_UP,		EVTT_PHASE2_UP },
 	{ EVT_PHASE2_DOWN,		EVTT_PHASE2_DOWN },
 	{ EVT_PHASE2_NO_RESPONSE,	EVTT_PEER_NO_RESPONSE },
 };

 static void
 evt_push(src, dst, type, optdata)
 	struct sockaddr *src;
 	struct sockaddr *dst;
 	int type;
 	vchar_t *optdata;
 {
 	struct evtdump *evtdump;
 	struct evt *evt;
 	size_t len;
 	int i;

 	/* If admin socket is disabled, silently discard anything */
 	if (adminsock_path == NULL || !evtlist_inuse)
 		return;

 	/* Map the event type to old */
 	for (i = 0; i < sizeof(evttype_map) / sizeof(evttype_map[0]); i++)
 		if (evttype_map[i].newtype == type)
 			break;
 	if (i >= sizeof(evttype_map) / sizeof(evttype_map[0]))
 		return;

 	type = evttype_map[i].oldtype;
 	if (type < 0)
 		return;

 	/* If we are above the limit, don't record anything */
 	if (evtlist_len > EVTLIST_MAX) {
 		plog(LLV_DEBUG, LOCATION, NULL,
 		    "Cannot record event: event queue overflowed\n");
 		return;
 	}

 	/* If we hit the limit, record an overflow event instead */
 	if (evtlist_len == EVTLIST_MAX) {
 		plog(LLV_ERROR, LOCATION, NULL,
 		    "Cannot record event: event queue overflow\n");
 		src = NULL;
 		dst = NULL;
 		type = EVTT_OVERFLOW;
 		optdata = NULL;
 	}

 	len = sizeof(*evtdump);
 	if (optdata)
 		len += optdata->l;

 	if ((evtdump = racoon_malloc(len)) == NULL) {
 		plog(LLV_ERROR, LOCATION, NULL, "Cannot record event: %s\n",
 		    strerror(errno));
 		return;
 	}

 	if ((evt = racoon_malloc(sizeof(*evt))) == NULL) {
 		plog(LLV_ERROR, LOCATION, NULL, "Cannot record event: %s\n",
 		    strerror(errno));
 		racoon_free(evtdump);
 		return;
 	}

 	if (src)
 		memcpy(&evtdump->src, src, sysdep_sa_len(src));
 	if (dst)
 		memcpy(&evtdump->dst, dst, sysdep_sa_len(dst));
 	evtdump->len = len;
 	evtdump->type = type;
 	time(&evtdump->timestamp);

 	if (optdata)
 		memcpy(evtdump + 1, optdata->v, optdata->l);

 	evt->dump = evtdump;
 	TAILQ_INSERT_TAIL(&evtlist, evt, next);

 	evtlist_len++;

 	return;
 }

 static struct evtdump *
 evt_pop(void) {
 	struct evtdump *evtdump;
 	struct evt *evt;

 	if ((evt = TAILQ_FIRST(&evtlist)) == NULL)
 		return NULL;

 	evtdump = evt->dump;
 	TAILQ_REMOVE(&evtlist, evt, next);
 	racoon_free(evt);
 	evtlist_len--;

 	return evtdump;
 }

 vchar_t *
 evt_dump(void) {
 	struct evtdump *evtdump;
 	vchar_t *buf = NULL;

 	if (!evtlist_inuse) {
 		evtlist_inuse = 1;
 		plog(LLV_ERROR, LOCATION, NULL,
 		     "evt_dump: deprecated event polling used\n");
 	}

 	if ((evtdump = evt_pop()) != NULL) {
 		if ((buf = vmalloc(evtdump->len)) == NULL) {
 			plog(LLV_ERROR, LOCATION, NULL,
 			    "evt_dump failed: %s\n", strerror(errno));
 			return NULL;
 		}
 		memcpy(buf->v, evtdump, evtdump->len);
 		racoon_free(evtdump);
 	}

 	return buf;
 }

 static struct evt_message *
 evtmsg_create(type, optdata)
 	int type;
 	vchar_t *optdata;
 {
 	struct evt_message *e;
 	size_t len;

 	len = sizeof(struct evt_message);
 	if (optdata != NULL)
 		len += optdata->l;

 	if ((e = racoon_malloc(len)) == NULL) {
 		plog(LLV_ERROR, LOCATION, NULL, "Cannot allocate event: %s\n",
 		     strerror(errno));
 		return NULL;
 	}

 	memset(e, 0, sizeof(struct evt_message));
 	e->adm.ac_len = len;
 	e->adm.ac_cmd = ADMIN_SHOW_EVT;
 	e->adm.ac_errno = 0;
 	e->adm.ac_proto = 0;
 	e->evt.ec_type = type;
 	time(&e->evt.ec_timestamp);
 	if (optdata != NULL)
 		memcpy(e + 1, optdata->v, optdata->l);

 	return e;
 }

 static void
 evt_unsubscribe(l)
 	struct evt_listener *l;
 {
 	plog(LLV_DEBUG, LOCATION, NULL,
 	     "[%d] admin connection released\n", l->fd);

 	LIST_REMOVE(l, ll_chain);
 	unmonitor_fd(l->fd);
 	close(l->fd);
 	racoon_free(l);
 }

 static int
 evt_unsubscribe_cb(ctx, fd)
 	void *ctx;
 	int fd;
 {
 	evt_unsubscribe((struct evt_listener *) ctx);
 	return 0;
 }

 static void
 evtmsg_broadcast(ll, e)
 	const struct evt_listener_list *ll;
 	struct evt_message *e;
 {
 	struct evt_listener *l, *nl;

 	for (l = LIST_FIRST(ll); l != NULL; l = nl) {
 		nl = LIST_NEXT(l, ll_chain);

 		if (send(l->fd, e, e->adm.ac_len, MSG_DONTWAIT) < 0) {
 			plog(LLV_DEBUG, LOCATION, NULL, "Cannot send event to fd: %s\n",
 				strerror(errno));
 			evt_unsubscribe(l);
 		}
 	}
 }

 void
 evt_generic(type, optdata)
 	int type;
 	vchar_t *optdata;
 {
 	struct evt_message *e;

 	if ((e = evtmsg_create(type, optdata)) == NULL)
 		return;

 	evtmsg_broadcast(&evt_listeners, e);
 	evt_push(&e->evt.ec_ph1src, &e->evt.ec_ph1dst, type, optdata);

 	racoon_free(e);
 }

 void
 evt_phase1(ph1, type, optdata)
 	const struct ph1handle *ph1;
 	int type;
 	vchar_t *optdata;
 {
 	struct evt_message *e;

 	if ((e = evtmsg_create(type, optdata)) == NULL)
 		return;

 	if (ph1->local)
 		memcpy(&e->evt.ec_ph1src, ph1->local, sysdep_sa_len(ph1->local));
 	if (ph1->remote)
 		memcpy(&e->evt.ec_ph1dst, ph1->remote, sysdep_sa_len(ph1->remote));

 	evtmsg_broadcast(&ph1->evt_listeners, e);
 	evtmsg_broadcast(&evt_listeners, e);
 	evt_push(&e->evt.ec_ph1src, &e->evt.ec_ph1dst, type, optdata);

 	racoon_free(e);
 }

 void
 evt_phase2(ph2, type, optdata)
 	const struct ph2handle *ph2;
 	int type;
 	vchar_t *optdata;
 {
 	struct evt_message *e;
 	struct ph1handle *ph1 = ph2->ph1;

 	if ((e = evtmsg_create(type, optdata)) == NULL)
 		return;

 	if (ph1) {
 		if (ph1->local)
 			memcpy(&e->evt.ec_ph1src, ph1->local, sysdep_sa_len(ph1->local));
 		if (ph1->remote)
 			memcpy(&e->evt.ec_ph1dst, ph1->remote, sysdep_sa_len(ph1->remote));
 	}
 	e->evt.ec_ph2msgid = ph2->msgid;

 	evtmsg_broadcast(&ph2->evt_listeners, e);
 	if (ph1)
 		evtmsg_broadcast(&ph1->evt_listeners, e);
 	evtmsg_broadcast(&evt_listeners, e);
 	evt_push(&e->evt.ec_ph1src, &e->evt.ec_ph1dst, type, optdata);

 	racoon_free(e);
 }

 int
 evt_subscribe(list, fd)
 	struct evt_listener_list *list;
 	int fd;
 {
 	struct evt_listener *l;

 	if ((l = racoon_malloc(sizeof(*l))) == NULL) {
 		plog(LLV_ERROR, LOCATION, NULL,
 		     "Cannot allocate event listener: %s\n",
 		     strerror(errno));
 		return errno;
 	}

 	if (list == NULL)
 		list = &evt_listeners;

 	LIST_INSERT_HEAD(list, l, ll_chain);
 	l->fd = fd;
 	monitor_fd(l->fd, evt_unsubscribe_cb, l, 0);

 	plog(LLV_DEBUG, LOCATION, NULL,
 	     "[%d] admin connection is polling events\n", fd);

 	return -2;
 }

 void
 evt_list_init(list)
 	struct evt_listener_list *list;
 {
 	LIST_INIT(list);
 }

 void
 evt_list_cleanup(list)
 	struct evt_listener_list *list;
 {
 	while (!LIST_EMPTY(list))
 		evt_unsubscribe(LIST_FIRST(list));
 }

 #endif /* ENABLE_ADMINPORT */
	/* $NetBSD: evt.c,v 1.10 2010/10/21 06:15:28 tteras Exp $ */

	/* Id: evt.c,v 1.5 2006/06/22 20:11:35 manubsd Exp */

	/*
	* Copyright (C) 2004 Emmanuel Dreyfus
	* Copyright (C) 2008 Timo Teras
	* 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.
	* 3. Neither the name of the project nor the names of its contributors
	* may be used to endorse or promote products derived from this software
	* without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
	*/

	#include "config.h"

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

	#include "vmbuf.h"
	#include "plog.h"
	#include "misc.h"
	#include "admin.h"
	#include "handler.h"
	#include "session.h"
	#include "gcmalloc.h"
	#include "evt.h"
	#include "var.h"

	#ifdef ENABLE_ADMINPORT

	static EVT_LISTENER_LIST(evt_listeners);

	struct evt_message {
	struct admin_com adm;
	struct evt_async evt;
	};

	struct evt {
	struct evtdump *dump;
	TAILQ_ENTRY(evt) next;
	};

	TAILQ_HEAD(evtlist, evt);

	#define EVTLIST_MAX 32

	static struct evtlist evtlist = TAILQ_HEAD_INITIALIZER(evtlist);
	static int evtlist_len = 0;
	static int evtlist_inuse = 0;

	static struct {
	int newtype, oldtype;
	} evttype_map[] = {
	{ EVT_RACOON_QUIT, EVTT_RACOON_QUIT },
	{ EVT_PHASE1_UP, EVTT_PHASE1_UP },
	{ EVT_PHASE1_DOWN, EVTT_PHASE1_DOWN },
	{ EVT_PHASE1_NO_RESPONSE, EVTT_PEER_NO_RESPONSE },
	{ EVT_PHASE1_NO_PROPOSAL, EVTT_PEERPH1_NOPROP },
	{ EVT_PHASE1_AUTH_FAILED, EVTT_PEERPH1AUTH_FAILED },
	{ EVT_PHASE1_DPD_TIMEOUT, EVTT_DPD_TIMEOUT },
	{ EVT_PHASE1_PEER_DELETED, EVTT_PEER_DELETE },
	{ EVT_PHASE1_MODE_CFG, EVTT_ISAKMP_CFG_DONE },
	{ EVT_PHASE1_XAUTH_SUCCESS, EVTT_XAUTH_SUCCESS },
	{ EVT_PHASE1_XAUTH_FAILED, EVTT_XAUTH_FAILED },
	{ EVT_PHASE2_NO_PHASE1, -1 },
	{ EVT_PHASE2_UP, EVTT_PHASE2_UP },
	{ EVT_PHASE2_DOWN, EVTT_PHASE2_DOWN },
	{ EVT_PHASE2_NO_RESPONSE, EVTT_PEER_NO_RESPONSE },
	};

	static void
	evt_push(src, dst, type, optdata)
	struct sockaddr *src;
	struct sockaddr *dst;
	int type;
	vchar_t *optdata;
	{
	struct evtdump *evtdump;
	struct evt *evt;
	size_t len;
	int i;

	/* If admin socket is disabled, silently discard anything */
	if (adminsock_path == NULL \|\| !evtlist_inuse)
	return;

	/* Map the event type to old */
	for (i = 0; i < sizeof(evttype_map) / sizeof(evttype_map[0]); i++)
	if (evttype_map[i].newtype == type)
	break;
	if (i >= sizeof(evttype_map) / sizeof(evttype_map[0]))
	return;

	type = evttype_map[i].oldtype;
	if (type < 0)
	return;

	/* If we are above the limit, don't record anything */
	if (evtlist_len > EVTLIST_MAX) {
	plog(LLV_DEBUG, LOCATION, NULL,
	"Cannot record event: event queue overflowed\n");
	return;
	}

	/* If we hit the limit, record an overflow event instead */
	if (evtlist_len == EVTLIST_MAX) {
	plog(LLV_ERROR, LOCATION, NULL,
	"Cannot record event: event queue overflow\n");
	src = NULL;
	dst = NULL;
	type = EVTT_OVERFLOW;
	optdata = NULL;
	}

	len = sizeof(*evtdump);
	if (optdata)
	len += optdata->l;

	if ((evtdump = racoon_malloc(len)) == NULL) {
	plog(LLV_ERROR, LOCATION, NULL, "Cannot record event: %s\n",
	strerror(errno));
	return;
	}

	if ((evt = racoon_malloc(sizeof(*evt))) == NULL) {
	plog(LLV_ERROR, LOCATION, NULL, "Cannot record event: %s\n",
	strerror(errno));
	racoon_free(evtdump);
	return;
	}

	if (src)
	memcpy(&evtdump->src, src, sysdep_sa_len(src));
	if (dst)
	memcpy(&evtdump->dst, dst, sysdep_sa_len(dst));
	evtdump->len = len;
	evtdump->type = type;
	time(&evtdump->timestamp);

	if (optdata)
	memcpy(evtdump + 1, optdata->v, optdata->l);

	evt->dump = evtdump;
	TAILQ_INSERT_TAIL(&evtlist, evt, next);

	evtlist_len++;

	return;
	}

	static struct evtdump *
	evt_pop(void) {
	struct evtdump *evtdump;
	struct evt *evt;

	if ((evt = TAILQ_FIRST(&evtlist)) == NULL)
	return NULL;

	evtdump = evt->dump;
	TAILQ_REMOVE(&evtlist, evt, next);
	racoon_free(evt);
	evtlist_len--;

	return evtdump;
	}

	vchar_t *
	evt_dump(void) {
	struct evtdump *evtdump;
	vchar_t *buf = NULL;

	if (!evtlist_inuse) {
	evtlist_inuse = 1;
	plog(LLV_ERROR, LOCATION, NULL,
	"evt_dump: deprecated event polling used\n");
	}

	if ((evtdump = evt_pop()) != NULL) {
	if ((buf = vmalloc(evtdump->len)) == NULL) {
	plog(LLV_ERROR, LOCATION, NULL,
	"evt_dump failed: %s\n", strerror(errno));
	return NULL;
	}
	memcpy(buf->v, evtdump, evtdump->len);
	racoon_free(evtdump);
	}

	return buf;
	}

	static struct evt_message *
	evtmsg_create(type, optdata)
	int type;
	vchar_t *optdata;
	{
	struct evt_message *e;
	size_t len;

	len = sizeof(struct evt_message);
	if (optdata != NULL)
	len += optdata->l;

	if ((e = racoon_malloc(len)) == NULL) {
	plog(LLV_ERROR, LOCATION, NULL, "Cannot allocate event: %s\n",
	strerror(errno));
	return NULL;
	}

	memset(e, 0, sizeof(struct evt_message));
	e->adm.ac_len = len;
	e->adm.ac_cmd = ADMIN_SHOW_EVT;
	e->adm.ac_errno = 0;
	e->adm.ac_proto = 0;
	e->evt.ec_type = type;
	time(&e->evt.ec_timestamp);
	if (optdata != NULL)
	memcpy(e + 1, optdata->v, optdata->l);

	return e;
	}

	static void
	evt_unsubscribe(l)
	struct evt_listener *l;
	{
	plog(LLV_DEBUG, LOCATION, NULL,
	"[%d] admin connection released\n", l->fd);

	LIST_REMOVE(l, ll_chain);
	unmonitor_fd(l->fd);
	close(l->fd);
	racoon_free(l);
	}

	static int
	evt_unsubscribe_cb(ctx, fd)
	void *ctx;
	int fd;
	{
	evt_unsubscribe((struct evt_listener *) ctx);
	return 0;
	}

	static void
	evtmsg_broadcast(ll, e)
	const struct evt_listener_list *ll;
	struct evt_message *e;
	{
	struct evt_listener l, nl;

	for (l = LIST_FIRST(ll); l != NULL; l = nl) {
	nl = LIST_NEXT(l, ll_chain);

	if (send(l->fd, e, e->adm.ac_len, MSG_DONTWAIT) < 0) {
	plog(LLV_DEBUG, LOCATION, NULL, "Cannot send event to fd: %s\n",
	strerror(errno));
	evt_unsubscribe(l);
	}
	}
	}

	void
	evt_generic(type, optdata)
	int type;
	vchar_t *optdata;
	{
	struct evt_message *e;

	if ((e = evtmsg_create(type, optdata)) == NULL)
	return;

	evtmsg_broadcast(&evt_listeners, e);
	evt_push(&e->evt.ec_ph1src, &e->evt.ec_ph1dst, type, optdata);

	racoon_free(e);
	}

	void
	evt_phase1(ph1, type, optdata)
	const struct ph1handle *ph1;
	int type;
	vchar_t *optdata;
	{
	struct evt_message *e;

	if ((e = evtmsg_create(type, optdata)) == NULL)
	return;

	if (ph1->local)
	memcpy(&e->evt.ec_ph1src, ph1->local, sysdep_sa_len(ph1->local));
	if (ph1->remote)
	memcpy(&e->evt.ec_ph1dst, ph1->remote, sysdep_sa_len(ph1->remote));

	evtmsg_broadcast(&ph1->evt_listeners, e);
	evtmsg_broadcast(&evt_listeners, e);
	evt_push(&e->evt.ec_ph1src, &e->evt.ec_ph1dst, type, optdata);

	racoon_free(e);
	}

	void
	evt_phase2(ph2, type, optdata)
	const struct ph2handle *ph2;
	int type;
	vchar_t *optdata;
	{
	struct evt_message *e;
	struct ph1handle *ph1 = ph2->ph1;

	if ((e = evtmsg_create(type, optdata)) == NULL)
	return;

	if (ph1) {
	if (ph1->local)
	memcpy(&e->evt.ec_ph1src, ph1->local, sysdep_sa_len(ph1->local));
	if (ph1->remote)
	memcpy(&e->evt.ec_ph1dst, ph1->remote, sysdep_sa_len(ph1->remote));
	}
	e->evt.ec_ph2msgid = ph2->msgid;

	evtmsg_broadcast(&ph2->evt_listeners, e);
	if (ph1)
	evtmsg_broadcast(&ph1->evt_listeners, e);
	evtmsg_broadcast(&evt_listeners, e);
	evt_push(&e->evt.ec_ph1src, &e->evt.ec_ph1dst, type, optdata);

	racoon_free(e);
	}

	int
	evt_subscribe(list, fd)
	struct evt_listener_list *list;
	int fd;
	{
	struct evt_listener *l;

	if ((l = racoon_malloc(sizeof(*l))) == NULL) {
	plog(LLV_ERROR, LOCATION, NULL,
	"Cannot allocate event listener: %s\n",
	strerror(errno));
	return errno;
	}

	if (list == NULL)
	list = &evt_listeners;

	LIST_INSERT_HEAD(list, l, ll_chain);
	l->fd = fd;
	monitor_fd(l->fd, evt_unsubscribe_cb, l, 0);

	plog(LLV_DEBUG, LOCATION, NULL,
	"[%d] admin connection is polling events\n", fd);

	return -2;
	}

	void
	evt_list_init(list)
	struct evt_listener_list *list;
	{
	LIST_INIT(list);
	}

	void
	evt_list_cleanup(list)
	struct evt_listener_list *list;
	{
	while (!LIST_EMPTY(list))
	evt_unsubscribe(LIST_FIRST(list));
	}

	#endif /* ENABLE_ADMINPORT */