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

/* $Id: main.c,v 1.14.2.3 2005/11/06 17:18:26 monas Exp $ */

/*
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 * 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 <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/sysctl.h>

#include <netinet/in.h>

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <paths.h>
#include <err.h>
#include <launch.h>

/*
 * If we're using a debugging malloc library, this may define our
 * wrapper stubs.
 */
#define	RACOON_MAIN_PROGRAM
#include "gcmalloc.h"

#include "var.h"
#include "misc.h"
#include "vmbuf.h"
#include "plog.h"
#include "debug.h"

#include "cfparse_proto.h"
#include "isakmp_var.h"
#ifdef ENABLE_HYBRID
#include <resolv.h>
#include "isakmp.h"
#include "isakmp_xauth.h"
#include "isakmp_cfg.h"
#endif
#include "remoteconf.h"
#include "localconf.h"
#include "session.h"
#include "oakley.h"
#include "pfkey.h"
#include "policy.h"
#include "crypto_openssl.h"
#include "backupsa.h"
#include "vendorid.h"

#ifdef __APPLE__
#include <CoreFoundation/CoreFoundation.h>
#include <SystemConfiguration/SystemConfiguration.h>
#endif

//#include "package_version.h"

int f_local = 0;	/* local test mode.  behave like a wall. */
int vflag = 1;		/* for print-isakmp.c */
static int loading_sa = 0;	/* install sa when racoon boots up. */
static int dump_config = 0;	/* dump parsed config file. */
static int exec_done = 0;	/* we've already been exec'd */

#ifdef TOP_PACKAGE
static char version[] = "@(#)" TOP_PACKAGE_STRING " (" TOP_PACKAGE_URL ")";
#else /* TOP_PACKAGE */
static char version[] = "@(#) racoon / IPsec-tools";
#endif /* TOP_PACKAGE */

int main __P((int, char **));
static void usage __P((void));
static void parse __P((int, char **));
static void restore_params __P((void));
static void save_params __P((void));
static void saverestore_params __P((int));
static void cleanup_pidfile __P((void));
static int launchedbylaunchd(void);

pid_t racoon_pid = 0;
int print_pid = 1;	/* for racoon only */

void
usage()
{
	printf("usage: racoon [-BdFvs%s] %s[-f (file)] [-l (file)] [-p (port)]\n",
#ifdef INET6
		"46",
#else
		"",
#endif
#ifdef ENABLE_ADMINPORT
		"[-a (port)] "
#else
		""
#endif
		);
	printf("   -B: install SA to the kernel from the file "
		"specified by the configuration file.\n");
	printf("   -d: debug level, more -d will generate more debug message.\n");
	printf("   -C: dump parsed config file.\n");
	printf("   -L: include location in debug messages\n");
	printf("   -F: run in foreground, do not become daemon.\n");
	printf("   -v: be more verbose\n");
	printf("   -s: override enable auto exit\n");
#ifdef INET6
	printf("   -4: IPv4 mode.\n");
	printf("   -6: IPv6 mode.\n");
#endif
#ifdef ENABLE_ADMINPORT
	printf("   -a: port number for admin port.\n");
#endif
	printf("   -f: pathname for configuration file.\n");
	printf("   -l: pathname for log file.\n");
	printf("   -p: port number for isakmp (default: %d).\n", PORT_ISAKMP);
	printf("   -P: port number for NAT-T (default: %d).\n", PORT_ISAKMP_NATT);
	exit(1);
}

int
main(ac, av)
	int ac;
	char **av;
{
	int error;
	char				logFileStr[MAXPATHLEN+1];

	if (geteuid() != 0) {
		errx(1, "must be root to invoke this program.");
		/* NOTREACHED*/
	}

	/*
	 * Don't let anyone read files I write.  Although some files (such as
	 * the PID file) can be other readable, we dare to use the global mask,
	 * because racoon uses fopen(3), which can't specify the permission
	 * at the creation time.
	 */
	umask(077);
	if (umask(077) != 077) {
		errx(1, "could not set umask");
		/* NOTREACHED*/
	}

#ifdef DEBUG_RECORD_MALLOCATION
	DRM_init();
#endif

	logFileStr[0] = 0;

	eay_init();
	initlcconf();
	initrmconf();
	oakley_dhinit();
	compute_vendorids();

	parse(ac, av);
	
	#ifdef __APPLE__
	/*
	 * Check IPSec plist
	 */
	{
		SCPreferencesRef 	prefs = NULL;
		CFPropertyListRef	globals;
		CFStringRef			logFileRef;
		CFNumberRef			debugLevelRef;
		
		int					level = 0;
		
		logFileStr[0] = 0;
		   
	    if ((prefs = SCPreferencesCreate(0, CFSTR("racoon"), CFSTR("com.apple.ipsec.plist"))) == NULL)
			goto skip;
		globals = SCPreferencesGetValue(prefs, CFSTR("Global"));
		if (!globals || (CFGetTypeID(globals) != CFDictionaryGetTypeID()))
			goto skip;
		debugLevelRef = CFDictionaryGetValue(globals, CFSTR("DebugLevel"));
		if (!debugLevelRef || (CFGetTypeID(debugLevelRef) != CFNumberGetTypeID()))
			goto skip;
		CFNumberGetValue(debugLevelRef, kCFNumberSInt32Type, &level);
		switch (level)
		{
			case 0:
				loglevel = 5;
				goto skip;
				break;
			case 1:
				loglevel = 6;
				break;
			case 2:
				loglevel = 7;
				break;
			default:
				break; /* invalid - ignore */
		}
		
		logFileRef = CFDictionaryGetValue(globals, CFSTR("DebugLogfile"));
		if (!logFileRef	|| (CFGetTypeID(logFileRef) != CFStringGetTypeID())) {	
			goto skip;
		}
		CFStringGetCString(logFileRef, logFileStr, MAXPATHLEN, kCFStringEncodingMacRoman);
skip:
		if (prefs)
			CFRelease(prefs);
	}
	
	if (logFileStr[0])
			plogset(logFileStr);
	else	
#endif /* __APPLE__ */
		if (lcconf->logfile_param)
			plogset(lcconf->logfile_param);			

	ploginit();

	plog(LLV_INFO, LOCATION, NULL, "***** racoon started: pid=%d  started by: %d\n", getpid(), getppid());
	plog(LLV_INFO, LOCATION, NULL, "%s\n", version);
	plog(LLV_INFO, LOCATION, NULL, "@(#)"
	    "This product linked %s (http://www.openssl.org/)"
	    "\n", eay_version());
	plog(LLV_INFO, LOCATION, NULL, "Reading configuration from \"%s\"\n", 
	    lcconf->racoon_conf);

	if (pfkey_init() < 0) {
		errx(1, "something error happened "
			"while pfkey initializing.");
		/* NOTREACHED*/
	}

#ifdef ENABLE_HYBRID
	if (isakmp_cfg_init(ISAKMP_CFG_INIT_COLD))
		errx(1, "could not initialize ISAKMP mode config structures");
#endif

#ifdef HAVE_LIBLDAP
	if (xauth_ldap_init() != 0)
		errx(1, "could not initialize libldap");
#endif

	/*
	 * in order to prefer the parameters by command line,
	 * saving some parameters before parsing configuration file.
	 */
	save_params();
	error = cfparse();
	if (error != 0)
		errx(1, "failed to parse configuration file.");
	restore_params();
	
	if (lcconf->logfile_param == NULL && logFileStr[0] == 0)
		plogreset(lcconf->pathinfo[LC_PATHTYPE_LOGFILE]);
		
#ifdef ENABLE_NATT
	/* Tell the kernel which port to use for UDP encapsulation */
	{
		int udp_port = PORT_ISAKMP_NATT;
		if (sysctlbyname("net.inet.ipsec.esp_port", NULL, NULL, &udp_port, sizeof(udp_port)) != 0)
			errx(1, "couldn't set net.inet.ipsec.esp_port to %d. (%s)",
				udp_port, strerror(errno));
	}
#endif

#ifdef HAVE_LIBRADIUS
	if (xauth_radius_init() != 0) {
		errx(1, "could not initialize libradius");
		/* NOTREACHED*/
	}
#endif

	if (dump_config)
		dumprmconf ();

	/*
	 * install SAs from the specified file.  If the file is not specified
	 * by the configuration file, racoon will exit.
	 */
	if (loading_sa && !f_local) {
		if (backupsa_from_file() != 0)
			errx(1, "something error happened "
				"SA recovering.");
	}

	if (f_foreground)
		close(0);
	else {
		if ( !exec_done && launchedbylaunchd() ){
			plog(LLV_INFO, LOCATION, NULL,
				 "racoon launched by launchd.\n");
			exec_done = 1;
			if (atexit(cleanup_pidfile) < 0) {
				plog(LLV_ERROR, LOCATION, NULL,
					 "cannot register pidfile cleanup");
			}
		}else {
		
			if (exec_done) {
				if (atexit(cleanup_pidfile) < 0) {
					plog(LLV_ERROR, LOCATION, NULL,
						"cannot register pidfile cleanup");
				}
			} else {
				#define MAX_EXEC_ARGS 32
				
				char *args[MAX_EXEC_ARGS + 2]; /* 2 extra, for '-x' and NULL */
				char *env[1] = {0};	
				int	i;
				
				if (ac > MAX_EXEC_ARGS) {
					plog(LLV_ERROR, LOCATION, NULL,
						"too many arguments.\n");
					exit(1);
				}
				
				if (daemon(0, 0) < 0) {
					errx(1, "failed to be daemon. (%s)",
						strerror(errno));
				}
				
				/* Radar 5129006 - Prevent non-root user from killing racoon
				 * when launched by setuid process
				 */
				if (setuid(0)) {
					plog(LLV_ERROR, LOCATION, NULL,
						"cannot set uid.\n");
					exit(1);
				}
				if (setgid(0)) {
					plog(LLV_ERROR, LOCATION, NULL,
						"cannot set gid.\n");
					exit(1);
				}
				
				/* setup args to re-exec - for CoreFoundation issues */
				args[0] = PATHRACOON;	
				for (i = 1; i < ac; i++)
					args[i] = *(av + i);
				args[ac] = "-x";		/* tells racoon its been exec'd */
				args[ac+1] = 0;
				
				execve(PATHRACOON, args, env);
				plog(LLV_ERROR, LOCATION, NULL,
						"failed to exec racoon. (%s)", strerror(errno));
				exit(1);
			}
		}
	}

	session();
	
	exit(0);
}


static int
launchedbylaunchd(){
	int             launchdlaunched = 1;
	launch_data_t checkin_response = NULL;
	launch_data_t checkin_request = NULL;
	
	/* check in with launchd */
	if ((checkin_request = launch_data_new_string(LAUNCH_KEY_CHECKIN)) == NULL) {
		plog(LLV_ERROR, LOCATION, NULL,
			 "launch_data_new_string fails.\n");
		launchdlaunched = 0;
		goto done;
	}
	if ((checkin_response = launch_msg(checkin_request)) == NULL) {
		plog(LLV_ERROR, LOCATION, NULL,
			 "launch_msg fails.\n");
		launchdlaunched = 0;
		goto done;
	}
	if (LAUNCH_DATA_ERRNO == launch_data_get_type(checkin_response)) {
		plog(LLV_ERROR, LOCATION, NULL,
			 "launch_data_get_type fails errno %d.\n", launch_data_get_errno(checkin_response));
		launchdlaunched = 0;
		goto done;
	}
	
done:
	/* clean up before we leave */
	if ( checkin_request )
		launch_data_free(checkin_request);
	if ( checkin_response )
		launch_data_free(checkin_response);
	return launchdlaunched;
}

static void
cleanup_pidfile()
{
	char pid_file[MAXPATHLEN];
	pid_t p = getpid();

	/* if it's not child process, clean everything */
	if (racoon_pid == p) {
		if (lcconf->pathinfo[LC_PATHTYPE_PIDFILE] == NULL) 
			strlcpy(pid_file, _PATH_VARRUN "racoon.pid", sizeof(pid_file));
		else if (lcconf->pathinfo[LC_PATHTYPE_PIDFILE][0] == '/') 
			strlcpy(pid_file, lcconf->pathinfo[LC_PATHTYPE_PIDFILE], sizeof(pid_file));
		else {
			strlcat(pid_file, _PATH_VARRUN, sizeof(pid_file));
			strlcat(pid_file, lcconf->pathinfo[LC_PATHTYPE_PIDFILE], sizeof(pid_file));
		}
		(void) unlink(pid_file);
	}
}


static void
parse(ac, av)
	int ac;
	char **av;
{
	extern char *optarg;
	extern int optind;
	int c;
#ifdef YYDEBUG
	extern int yydebug;
#endif

	pname = strrchr(*av, '/');
	if (pname)
		pname++;
	else
		pname = *av;

#if 0	/* for debugging */
	loglevel += 2;
	plogset("/tmp/racoon.log");
#endif

	while ((c = getopt(ac, av, "dLFp:P:a:f:l:vsZBCx"
#ifdef YYDEBUG
			"y"
#endif
#ifdef INET6
			"46"
#endif
			)) != -1) {
		switch (c) {
		case 'd':
			loglevel++;
			break;
		case 'L':
			print_location = 1;
			break;
		case 'F':
			printf("Foreground mode.\n");
			f_foreground = 1;
			break;
		case 'p':
			lcconf->port_isakmp = atoi(optarg);
			break;
		case 'P':
			lcconf->port_isakmp_natt = atoi(optarg);
			break;
		case 'a':
#ifdef ENABLE_ADMINPORT
			lcconf->port_admin = atoi(optarg);
			break;
#else
			fprintf(stderr, "%s: the option is disabled "
			    "in the configuration\n", pname);
			exit(1);
#endif
		case 'f':
			lcconf->racoon_conf = optarg;
			break;
		case 'l':
			lcconf->logfile_param = optarg;
			break;
		case 'v':
			vflag++;
			break;
		case 's':
			lcconf->auto_exit_state &= ~LC_AUTOEXITSTATE_CLIENT;	/* override default auto exit state */
			break;
		case 'x':
			exec_done = 1;
			break;
		case 'Z':
			/*
			 * only local test.
			 * To specify -Z option and to choice a appropriate
			 * port number for ISAKMP, you can launch some racoons
			 * on the local host for debug.
			 * pk_sendadd() on initiator side is always failed
			 * even if this flag is used.  Because there is same
			 * spi in the SAD which is inserted by pk_sendgetspi()
			 * on responder side.
			 */
			printf("Local test mode.\n");
			f_local = 1;
			break;
#ifdef YYDEBUG
		case 'y':
			yydebug = 1;
			break;
#endif
#ifdef INET6
		case '4':
			lcconf->default_af = AF_INET;
			break;
		case '6':
			lcconf->default_af = AF_INET6;
			break;
#endif
		case 'B':
			loading_sa++;
			break;
		case 'C':
			dump_config++;
			break;
		default:
			usage();
			/* NOTREACHED */
		}
	}
	ac -= optind;
	av += optind;

	if (ac != 0) {
		usage();
		/* NOTREACHED */
	}

	return;
}

static void
restore_params()
{
	saverestore_params(1);
}

static void
save_params()
{
	saverestore_params(0);
}

static void
saverestore_params(f)
	int f;
{
	static u_int16_t s_port_isakmp;
#ifdef ENABLE_ADMINPORT
	static u_int16_t s_port_admin;
#endif

	/* 0: save, 1: restore */
	if (f) {
		lcconf->port_isakmp = s_port_isakmp;
#ifdef ENABLE_ADMINPORT
		lcconf->port_admin = s_port_admin;
#endif
	} else {
		s_port_isakmp = lcconf->port_isakmp;
#ifdef ENABLE_ADMINPORT
		s_port_admin = lcconf->port_admin;
#endif
	}
}
Commit	Line	Data
52b7d2ce A	1	/* $Id: main.c,v 1.14.2.3 2005/11/06 17:18:26 monas Exp $ */
	2
	3	/*
	4	* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. Neither the name of the project nor the names of its contributors
	16	* may be used to endorse or promote products derived from this software
	17	* without specific prior written permission.
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	29	* SUCH DAMAGE.
	30	*/
	31
	32	#include "config.h"
	33
	34	#include <sys/types.h>
	35	#include <sys/param.h>
	36	#include <sys/socket.h>
	37	#include <sys/stat.h>
	38	#include <sys/sysctl.h>
	39
	40	#include <netinet/in.h>
	41
	42	#include <stdlib.h>
	43	#include <stdio.h>
	44	#include <string.h>
	45	#include <errno.h>
	46	#include <limits.h>
	47	#ifdef HAVE_UNISTD_H
	48	#include <unistd.h>
	49	#endif
	50	#include <paths.h>
	51	#include <err.h>
d1e348cf	52	#include <launch.h>
52b7d2ce A	53
	54	/*
	55	* If we're using a debugging malloc library, this may define our
	56	* wrapper stubs.
	57	*/
	58	#define RACOON_MAIN_PROGRAM
	59	#include "gcmalloc.h"
	60
	61	#include "var.h"
	62	#include "misc.h"
	63	#include "vmbuf.h"
	64	#include "plog.h"
	65	#include "debug.h"
	66
	67	#include "cfparse_proto.h"
	68	#include "isakmp_var.h"
d1e348cf A	69	#ifdef ENABLE_HYBRID
d1e348cf A	70	#include <resolv.h>
52b7d2ce A	71	#include "isakmp.h"
52b7d2ce A	72	#include "isakmp_xauth.h"
d1e348cf	73	#include "isakmp_cfg.h"
52b7d2ce A	74	#endif
	75	#include "remoteconf.h"
	76	#include "localconf.h"
	77	#include "session.h"
	78	#include "oakley.h"
	79	#include "pfkey.h"
d1e348cf	80	#include "policy.h"
52b7d2ce A	81	#include "crypto_openssl.h"
	82	#include "backupsa.h"
	83	#include "vendorid.h"
	84
d1e348cf A	85	#ifdef __APPLE__
	86	#include <CoreFoundation/CoreFoundation.h>
	87	#include <SystemConfiguration/SystemConfiguration.h>
	88	#endif
	89
52b7d2ce A	90	//#include "package_version.h"
	91
	92	int f_local = 0; /* local test mode. behave like a wall. */
	93	int vflag = 1; /* for print-isakmp.c */
	94	static int loading_sa = 0; /* install sa when racoon boots up. */
	95	static int dump_config = 0; /* dump parsed config file. */
	96	static int exec_done = 0; /* we've already been exec'd */
	97
	98	#ifdef TOP_PACKAGE
	99	static char version[] = "@(#)" TOP_PACKAGE_STRING " (" TOP_PACKAGE_URL ")";
	100	#else /* TOP_PACKAGE */
	101	static char version[] = "@(#) racoon / IPsec-tools";
	102	#endif /* TOP_PACKAGE */
	103
	104	int main __P((int, char **));
	105	static void usage __P((void));
	106	static void parse __P((int, char **));
	107	static void restore_params __P((void));
	108	static void save_params __P((void));
	109	static void saverestore_params __P((int));
	110	static void cleanup_pidfile __P((void));
d1e348cf	111	static int launchedbylaunchd(void);
52b7d2ce A	112
	113	pid_t racoon_pid = 0;
	114	int print_pid = 1; /* for racoon only */
	115
	116	void
	117	usage()
	118	{
d1e348cf	119	printf("usage: racoon [-BdFvs%s] %s[-f (file)] [-l (file)] [-p (port)]\n",
52b7d2ce A	120	#ifdef INET6
	121	"46",
	122	#else
	123	"",
	124	#endif
	125	#ifdef ENABLE_ADMINPORT
	126	"[-a (port)] "
	127	#else
	128	""
	129	#endif
	130	);
	131	printf(" -B: install SA to the kernel from the file "
	132	"specified by the configuration file.\n");
	133	printf(" -d: debug level, more -d will generate more debug message.\n");
	134	printf(" -C: dump parsed config file.\n");
	135	printf(" -L: include location in debug messages\n");
	136	printf(" -F: run in foreground, do not become daemon.\n");
	137	printf(" -v: be more verbose\n");
d1e348cf	138	printf(" -s: override enable auto exit\n");
52b7d2ce A	139	#ifdef INET6
	140	printf(" -4: IPv4 mode.\n");
	141	printf(" -6: IPv6 mode.\n");
	142	#endif
	143	#ifdef ENABLE_ADMINPORT
	144	printf(" -a: port number for admin port.\n");
	145	#endif
	146	printf(" -f: pathname for configuration file.\n");
	147	printf(" -l: pathname for log file.\n");
	148	printf(" -p: port number for isakmp (default: %d).\n", PORT_ISAKMP);
	149	printf(" -P: port number for NAT-T (default: %d).\n", PORT_ISAKMP_NATT);
	150	exit(1);
	151	}
	152
	153	int
	154	main(ac, av)
	155	int ac;
	156	char **av;
	157	{
	158	int error;
d1e348cf	159	char logFileStr[MAXPATHLEN+1];
52b7d2ce A	160
	161	if (geteuid() != 0) {
	162	errx(1, "must be root to invoke this program.");
	163	/* NOTREACHED*/
	164	}
	165
	166	/*
	167	* Don't let anyone read files I write. Although some files (such as
	168	* the PID file) can be other readable, we dare to use the global mask,
	169	* because racoon uses fopen(3), which can't specify the permission
	170	* at the creation time.
	171	*/
	172	umask(077);
	173	if (umask(077) != 077) {
	174	errx(1, "could not set umask");
	175	/* NOTREACHED*/
	176	}
	177
	178	#ifdef DEBUG_RECORD_MALLOCATION
	179	DRM_init();
	180	#endif
	181
d1e348cf A	182	logFileStr[0] = 0;
d1e348cf A	183
52b7d2ce A	184	eay_init();
	185	initlcconf();
	186	initrmconf();
	187	oakley_dhinit();
	188	compute_vendorids();
	189
	190	parse(ac, av);
d1e348cf A	191
	192	#ifdef __APPLE__
	193	/*
	194	* Check IPSec plist
	195	*/
	196	{
	197	SCPreferencesRef prefs = NULL;
	198	CFPropertyListRef globals;
	199	CFStringRef logFileRef;
	200	CFNumberRef debugLevelRef;
	201
	202	int level = 0;
	203
	204	logFileStr[0] = 0;
	205
	206	if ((prefs = SCPreferencesCreate(0, CFSTR("racoon"), CFSTR("com.apple.ipsec.plist"))) == NULL)
	207	goto skip;
	208	globals = SCPreferencesGetValue(prefs, CFSTR("Global"));
	209	if (!globals \|\| (CFGetTypeID(globals) != CFDictionaryGetTypeID()))
	210	goto skip;
	211	debugLevelRef = CFDictionaryGetValue(globals, CFSTR("DebugLevel"));
	212	if (!debugLevelRef \|\| (CFGetTypeID(debugLevelRef) != CFNumberGetTypeID()))
	213	goto skip;
	214	CFNumberGetValue(debugLevelRef, kCFNumberSInt32Type, &level);
	215	switch (level)
	216	{
	217	case 0:
	218	loglevel = 5;
	219	goto skip;
	220	break;
	221	case 1:
	222	loglevel = 6;
	223	break;
	224	case 2:
	225	loglevel = 7;
	226	break;
	227	default:
	228	break; /* invalid - ignore */
	229	}
	230
	231	logFileRef = CFDictionaryGetValue(globals, CFSTR("DebugLogfile"));
	232	if (!logFileRef \|\| (CFGetTypeID(logFileRef) != CFStringGetTypeID())) {
	233	goto skip;
	234	}
	235	CFStringGetCString(logFileRef, logFileStr, MAXPATHLEN, kCFStringEncodingMacRoman);
	236	skip:
	237	if (prefs)
	238	CFRelease(prefs);
	239	}
	240
	241	if (logFileStr[0])
	242	plogset(logFileStr);
	243	else
	244	#endif /* __APPLE__ */
	245	if (lcconf->logfile_param)
	246	plogset(lcconf->logfile_param);
	247
52b7d2ce A	248	ploginit();
	249
	250	plog(LLV_INFO, LOCATION, NULL, "***** racoon started: pid=%d started by: %d\n", getpid(), getppid());
	251	plog(LLV_INFO, LOCATION, NULL, "%s\n", version);
	252	plog(LLV_INFO, LOCATION, NULL, "@(#)"
	253	"This product linked %s (http://www.openssl.org/)"
	254	"\n", eay_version());
d1e348cf A	255	plog(LLV_INFO, LOCATION, NULL, "Reading configuration from \"%s\"\n",
d1e348cf A	256	lcconf->racoon_conf);
52b7d2ce A	257
	258	if (pfkey_init() < 0) {
	259	errx(1, "something error happened "
	260	"while pfkey initializing.");
	261	/* NOTREACHED*/
	262	}
	263
d1e348cf A	264	#ifdef ENABLE_HYBRID
	265	if (isakmp_cfg_init(ISAKMP_CFG_INIT_COLD))
	266	errx(1, "could not initialize ISAKMP mode config structures");
	267	#endif
	268
	269	#ifdef HAVE_LIBLDAP
	270	if (xauth_ldap_init() != 0)
	271	errx(1, "could not initialize libldap");
	272	#endif
	273
52b7d2ce A	274	/*
	275	* in order to prefer the parameters by command line,
	276	* saving some parameters before parsing configuration file.
	277	*/
	278	save_params();
	279	error = cfparse();
	280	if (error != 0)
	281	errx(1, "failed to parse configuration file.");
	282	restore_params();
d1e348cf A	283
d1e348cf A	284	if (lcconf->logfile_param == NULL && logFileStr[0] == 0)
52b7d2ce A	285	plogreset(lcconf->pathinfo[LC_PATHTYPE_LOGFILE]);
	286
	287	#ifdef ENABLE_NATT
	288	/* Tell the kernel which port to use for UDP encapsulation */
	289	{
	290	int udp_port = PORT_ISAKMP_NATT;
	291	if (sysctlbyname("net.inet.ipsec.esp_port", NULL, NULL, &udp_port, sizeof(udp_port)) != 0)
	292	errx(1, "couldn't set net.inet.ipsec.esp_port to %d. (%s)",
	293	udp_port, strerror(errno));
	294	}
	295	#endif
	296
	297	#ifdef HAVE_LIBRADIUS
	298	if (xauth_radius_init() != 0) {
	299	errx(1, "could not initialize libradius");
	300	/* NOTREACHED*/
	301	}
	302	#endif
	303
	304	if (dump_config)
	305	dumprmconf ();
	306
	307	/*
	308	* install SAs from the specified file. If the file is not specified
	309	* by the configuration file, racoon will exit.
	310	*/
	311	if (loading_sa && !f_local) {
	312	if (backupsa_from_file() != 0)
	313	errx(1, "something error happened "
	314	"SA recovering.");
	315	}
	316
	317	if (f_foreground)
	318	close(0);
d1e348cf A	319	else {
	320	if ( !exec_done && launchedbylaunchd() ){
	321	plog(LLV_INFO, LOCATION, NULL,
	322	"racoon launched by launchd.\n");
	323	exec_done = 1;
	324	if (atexit(cleanup_pidfile) < 0) {
	325	plog(LLV_ERROR, LOCATION, NULL,
	326	"cannot register pidfile cleanup");
	327	}
	328	}else {
52b7d2ce	329
d1e348cf A	330	if (exec_done) {
	331	if (atexit(cleanup_pidfile) < 0) {
	332	plog(LLV_ERROR, LOCATION, NULL,
	333	"cannot register pidfile cleanup");
	334	}
	335	} else {
	336	#define MAX_EXEC_ARGS 32
	337
	338	char args[MAX_EXEC_ARGS + 2]; / 2 extra, for '-x' and NULL */
	339	char *env[1] = {0};
	340	int i;
	341
	342	if (ac > MAX_EXEC_ARGS) {
	343	plog(LLV_ERROR, LOCATION, NULL,
	344	"too many arguments.\n");
	345	exit(1);
	346	}
	347
	348	if (daemon(0, 0) < 0) {
	349	errx(1, "failed to be daemon. (%s)",
	350	strerror(errno));
	351	}
	352
	353	/* Radar 5129006 - Prevent non-root user from killing racoon
	354	* when launched by setuid process
	355	*/
	356	if (setuid(0)) {
	357	plog(LLV_ERROR, LOCATION, NULL,
	358	"cannot set uid.\n");
	359	exit(1);
	360	}
	361	if (setgid(0)) {
	362	plog(LLV_ERROR, LOCATION, NULL,
	363	"cannot set gid.\n");
	364	exit(1);
	365	}
	366
	367	/* setup args to re-exec - for CoreFoundation issues */
	368	args[0] = PATHRACOON;
	369	for (i = 1; i < ac; i++)
	370	args[i] = *(av + i);
	371	args[ac] = "-x"; /* tells racoon its been exec'd */
	372	args[ac+1] = 0;
	373
	374	execve(PATHRACOON, args, env);
	375	plog(LLV_ERROR, LOCATION, NULL,
	376	"failed to exec racoon. (%s)", strerror(errno));
	377	exit(1);
	378	}
52b7d2ce	379	}
52b7d2ce A	380	}
	381
	382	session();
	383
	384	exit(0);
	385	}
	386
	387
d1e348cf A	388	static int
	389	launchedbylaunchd(){
	390	int launchdlaunched = 1;
	391	launch_data_t checkin_response = NULL;
	392	launch_data_t checkin_request = NULL;
	393
	394	/* check in with launchd */
	395	if ((checkin_request = launch_data_new_string(LAUNCH_KEY_CHECKIN)) == NULL) {
	396	plog(LLV_ERROR, LOCATION, NULL,
	397	"launch_data_new_string fails.\n");
	398	launchdlaunched = 0;
	399	goto done;
	400	}
	401	if ((checkin_response = launch_msg(checkin_request)) == NULL) {
	402	plog(LLV_ERROR, LOCATION, NULL,
	403	"launch_msg fails.\n");
	404	launchdlaunched = 0;
	405	goto done;
	406	}
	407	if (LAUNCH_DATA_ERRNO == launch_data_get_type(checkin_response)) {
	408	plog(LLV_ERROR, LOCATION, NULL,
	409	"launch_data_get_type fails errno %d.\n", launch_data_get_errno(checkin_response));
	410	launchdlaunched = 0;
	411	goto done;
	412	}
	413
	414	done:
	415	/* clean up before we leave */
	416	if ( checkin_request )
	417	launch_data_free(checkin_request);
	418	if ( checkin_response )
	419	launch_data_free(checkin_response);
	420	return launchdlaunched;
	421	}
	422
52b7d2ce A	423	static void
	424	cleanup_pidfile()
	425	{
	426	char pid_file[MAXPATHLEN];
	427	pid_t p = getpid();
	428
	429	/* if it's not child process, clean everything */
	430	if (racoon_pid == p) {
	431	if (lcconf->pathinfo[LC_PATHTYPE_PIDFILE] == NULL)
d1e348cf	432	strlcpy(pid_file, _PATH_VARRUN "racoon.pid", sizeof(pid_file));
52b7d2ce	433	else if (lcconf->pathinfo[LC_PATHTYPE_PIDFILE][0] == '/')
d1e348cf	434	strlcpy(pid_file, lcconf->pathinfo[LC_PATHTYPE_PIDFILE], sizeof(pid_file));
52b7d2ce	435	else {
d1e348cf A	436	strlcat(pid_file, _PATH_VARRUN, sizeof(pid_file));
d1e348cf A	437	strlcat(pid_file, lcconf->pathinfo[LC_PATHTYPE_PIDFILE], sizeof(pid_file));
52b7d2ce A	438	}
	439	(void) unlink(pid_file);
	440	}
	441	}
	442
	443
	444	static void
	445	parse(ac, av)
	446	int ac;
	447	char **av;
	448	{
	449	extern char *optarg;
	450	extern int optind;
	451	int c;
	452	#ifdef YYDEBUG
	453	extern int yydebug;
	454	#endif
	455
	456	pname = strrchr(*av, '/');
	457	if (pname)
	458	pname++;
	459	else
	460	pname = *av;
	461
	462	#if 0 /* for debugging */
	463	loglevel += 2;
	464	plogset("/tmp/racoon.log");
	465	#endif
	466
d1e348cf	467	while ((c = getopt(ac, av, "dLFp:P:a:f:l:vsZBCx"
52b7d2ce A	468	#ifdef YYDEBUG
	469	"y"
	470	#endif
	471	#ifdef INET6
	472	"46"
	473	#endif
	474	)) != -1) {
	475	switch (c) {
	476	case 'd':
	477	loglevel++;
	478	break;
	479	case 'L':
	480	print_location = 1;
	481	break;
	482	case 'F':
	483	printf("Foreground mode.\n");
	484	f_foreground = 1;
	485	break;
	486	case 'p':
	487	lcconf->port_isakmp = atoi(optarg);
	488	break;
	489	case 'P':
	490	lcconf->port_isakmp_natt = atoi(optarg);
	491	break;
	492	case 'a':
	493	#ifdef ENABLE_ADMINPORT
	494	lcconf->port_admin = atoi(optarg);
	495	break;
	496	#else
	497	fprintf(stderr, "%s: the option is disabled "
	498	"in the configuration\n", pname);
	499	exit(1);
	500	#endif
	501	case 'f':
	502	lcconf->racoon_conf = optarg;
	503	break;
	504	case 'l':
	505	lcconf->logfile_param = optarg;
	506	break;
	507	case 'v':
	508	vflag++;
	509	break;
d1e348cf A	510	case 's':
d1e348cf A	511	lcconf->auto_exit_state &= ~LC_AUTOEXITSTATE_CLIENT; /* override default auto exit state */
52b7d2ce A	512	break;
	513	case 'x':
	514	exec_done = 1;
	515	break;
	516	case 'Z':
	517	/*
	518	* only local test.
	519	* To specify -Z option and to choice a appropriate
	520	* port number for ISAKMP, you can launch some racoons
	521	* on the local host for debug.
	522	* pk_sendadd() on initiator side is always failed
	523	* even if this flag is used. Because there is same
	524	* spi in the SAD which is inserted by pk_sendgetspi()
	525	* on responder side.
	526	*/
	527	printf("Local test mode.\n");
	528	f_local = 1;
	529	break;
	530	#ifdef YYDEBUG
	531	case 'y':
	532	yydebug = 1;
	533	break;
	534	#endif
	535	#ifdef INET6
	536	case '4':
	537	lcconf->default_af = AF_INET;
	538	break;
	539	case '6':
	540	lcconf->default_af = AF_INET6;
	541	break;
	542	#endif
	543	case 'B':
	544	loading_sa++;
	545	break;
	546	case 'C':
	547	dump_config++;
	548	break;
	549	default:
	550	usage();
	551	/* NOTREACHED */
	552	}
	553	}
	554	ac -= optind;
	555	av += optind;
	556
	557	if (ac != 0) {
	558	usage();
	559	/* NOTREACHED */
	560	}
	561
	562	return;
	563	}
	564
	565	static void
	566	restore_params()
	567	{
	568	saverestore_params(1);
	569	}
	570
	571	static void
	572	save_params()
	573	{
	574	saverestore_params(0);
	575	}
576
577	static void
578	saverestore_params(f)
579	int f;
580	{
581	static u_int16_t s_port_isakmp;
582	#ifdef ENABLE_ADMINPORT
583	static u_int16_t s_port_admin;
584	#endif
585
586	/* 0: save, 1: restore */
587	if (f) {
588	lcconf->port_isakmp = s_port_isakmp;
589	#ifdef ENABLE_ADMINPORT
590	lcconf->port_admin = s_port_admin;
591	#endif
592	} else {
593	s_port_isakmp = lcconf->port_isakmp;
594	#ifdef ENABLE_ADMINPORT
595	s_port_admin = lcconf->port_admin;
596	#endif
597	}
598	}