[apple/ipsec.git] / ipsec-tools / racoon / evt.c

/*	$NetBSD: evt.c,v 1.5 2006/09/09 16:22:09 manu Exp $	*/

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

/*
 * Copyright (C) 2004 Emmanuel Dreyfus
 * 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 "gcmalloc.h"
#include "evt.h"

#ifdef ENABLE_ADMINPORT
struct evtlist evtlist = TAILQ_HEAD_INITIALIZER(evtlist);
int evtlist_len = 0;

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;

	/* If admin socket is disabled, silently discard anything */
	if (adminsock_path == NULL)
		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;
}

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 ((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;
}

#endif /* ENABLE_ADMINPORT */
Commit	Line	Data
d1e348cf A	1	/* $NetBSD: evt.c,v 1.5 2006/09/09 16:22:09 manu Exp $ */
	2
	3	/* Id: evt.c,v 1.5 2006/06/22 20:11:35 manubsd Exp */
52b7d2ce A	4
	5	/*
	6	* Copyright (C) 2004 Emmanuel Dreyfus
	7	* All rights reserved.
	8	*
	9	* Redistribution and use in source and binary forms, with or without
	10	* modification, are permitted provided that the following conditions
	11	* are met:
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	* 2. Redistributions in binary form must reproduce the above copyright
	15	* notice, this list of conditions and the following disclaimer in the
	16	* documentation and/or other materials provided with the distribution.
	17	* 3. Neither the name of the project nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
	34	#include "config.h"
	35
	36	#include <errno.h>
	37	#include <string.h>
	38	#include <stdio.h>
	39	#include <time.h>
	40	#include <unistd.h>
	41	#include <stdlib.h>
	42	#include <sys/queue.h>
	43	#include <sys/socket.h>
	44
	45	#include "vmbuf.h"
	46	#include "plog.h"
	47	#include "misc.h"
d1e348cf	48	#include "admin.h"
52b7d2ce A	49	#include "gcmalloc.h"
	50	#include "evt.h"
	51
d1e348cf	52	#ifdef ENABLE_ADMINPORT
52b7d2ce A	53	struct evtlist evtlist = TAILQ_HEAD_INITIALIZER(evtlist);
	54	int evtlist_len = 0;
	55
	56	void
	57	evt_push(src, dst, type, optdata)
	58	struct sockaddr *src;
	59	struct sockaddr *dst;
	60	int type;
	61	vchar_t *optdata;
	62	{
	63	struct evtdump *evtdump;
	64	struct evt *evt;
	65	size_t len;
	66
d1e348cf A	67	/* If admin socket is disabled, silently discard anything */
	68	if (adminsock_path == NULL)
	69	return;
	70
52b7d2ce A	71	/* If we are above the limit, don't record anything */
	72	if (evtlist_len > EVTLIST_MAX) {
	73	plog(LLV_DEBUG, LOCATION, NULL,
	74	"Cannot record event: event queue overflowed\n");
	75	return;
	76	}
	77
	78	/* If we hit the limit, record an overflow event instead */
	79	if (evtlist_len == EVTLIST_MAX) {
	80	plog(LLV_ERROR, LOCATION, NULL,
	81	"Cannot record event: event queue overflow\n");
	82	src = NULL;
	83	dst = NULL;
	84	type = EVTT_OVERFLOW;
	85	optdata = NULL;
	86	}
	87
	88	len = sizeof(*evtdump);
	89	if (optdata)
	90	len += optdata->l;
	91
	92	if ((evtdump = racoon_malloc(len)) == NULL) {
	93	plog(LLV_ERROR, LOCATION, NULL, "Cannot record event: %s\n",
	94	strerror(errno));
	95	return;
	96	}
	97
	98	if ((evt = racoon_malloc(sizeof(*evt))) == NULL) {
	99	plog(LLV_ERROR, LOCATION, NULL, "Cannot record event: %s\n",
	100	strerror(errno));
	101	racoon_free(evtdump);
	102	return;
	103	}
	104
	105	if (src)
	106	memcpy(&evtdump->src, src, sysdep_sa_len(src));
	107	if (dst)
	108	memcpy(&evtdump->dst, dst, sysdep_sa_len(dst));
	109	evtdump->len = len;
	110	evtdump->type = type;
	111	time(&evtdump->timestamp);
	112
	113	if (optdata)
	114	memcpy(evtdump + 1, optdata->v, optdata->l);
	115
	116	evt->dump = evtdump;
	117	TAILQ_INSERT_TAIL(&evtlist, evt, next);
	118
	119	evtlist_len++;
	120
	121	return;
	122	}
	123
	124	struct evtdump *
	125	evt_pop(void) {
	126	struct evtdump *evtdump;
	127	struct evt *evt;
	128
	129	if ((evt = TAILQ_FIRST(&evtlist)) == NULL)
	130	return NULL;
	131
	132	evtdump = evt->dump;
	133	TAILQ_REMOVE(&evtlist, evt, next);
	134	racoon_free(evt);
135	evtlist_len--;
136
137	return evtdump;
138	}
139
140	vchar_t *
141	evt_dump(void) {
142	struct evtdump *evtdump;
143	vchar_t *buf = NULL;
144
145	if ((evtdump = evt_pop()) != NULL) {
146	if ((buf = vmalloc(evtdump->len)) == NULL) {
147	plog(LLV_ERROR, LOCATION, NULL,
148	"evt_dump failed: %s\n", strerror(errno));
149	return NULL;
150	}
151	memcpy(buf->v, evtdump, evtdump->len);
152	racoon_free(evtdump);
153	}
154
155	return buf;
156	}
d1e348cf A	157
d1e348cf A	158	#endif /* ENABLE_ADMINPORT */