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

/*	$KAME: localconf.c,v 1.33 2001/08/09 07:32:19 sakane 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <err.h>

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

#include "localconf.h"
#include "algorithm.h"
#include "admin.h"
#include "privsep.h"
#include "isakmp_var.h"
#include "isakmp.h"
#include "ipsec_doi.h"
#include "grabmyaddr.h"
#include "vendorid.h"
#include "str2val.h"
#include "safefile.h"
#include "admin.h"
#include "gcmalloc.h"
#include "session.h"

#ifdef __APPLE__
#include <CoreFoundation/CoreFoundation.h>
#if HAVE_SECURITY_FRAMEWORK
#include <Security/Security.h>
#else
typedef void * SecKeychainRef;
#endif
#endif

struct localconf *lcconf;

static void setdefault __P((void));

void
initlcconf()
{
	lcconf = racoon_calloc(1, sizeof(*lcconf));
	if (lcconf == NULL)
		errx(1, "failed to allocate local conf.");

	setdefault();
	lcconf->sock_vpncontrol = -1;	/* not to be done during flush */
	lcconf->racoon_conf = LC_DEFAULT_CF;
	TAILQ_INIT(&lcconf->saved_msg_queue);
}

void
flushlcconf()
{
	int i;

	setdefault();
	clear_myaddr();
	for (i = 0; i < LC_PATHTYPE_MAX; i++) {
		if (lcconf->pathinfo[i]) {
			racoon_free(lcconf->pathinfo[i]);
			lcconf->pathinfo[i] = NULL;
		}
	}
	for (i = 0; i < LC_IDENTTYPE_MAX; i++) {
		if (lcconf->ident[i])
			vfree(lcconf->ident[i]);
		lcconf->ident[i] = NULL;
	}
	if (lcconf->ext_nat_id) {
		vfree(lcconf->ext_nat_id);
		lcconf->ext_nat_id = NULL;
	}
}

static void
setdefault()
{
	lcconf->uid = 0;
	lcconf->gid = 0;
	lcconf->chroot = NULL;
	lcconf->autograbaddr = 1;
	lcconf->port_isakmp = PORT_ISAKMP;
	lcconf->port_isakmp_natt = PORT_ISAKMP_NATT;
	lcconf->default_af = AF_INET;
	lcconf->pad_random = LC_DEFAULT_PAD_RANDOM;
	lcconf->pad_randomlen = LC_DEFAULT_PAD_RANDOMLEN;
	lcconf->pad_maxsize = LC_DEFAULT_PAD_MAXSIZE;
	lcconf->pad_strict = LC_DEFAULT_PAD_STRICT;
	lcconf->pad_excltail = LC_DEFAULT_PAD_EXCLTAIL;
	lcconf->retry_counter = LC_DEFAULT_RETRY_COUNTER;
	lcconf->retry_interval = LC_DEFAULT_RETRY_INTERVAL;
	lcconf->count_persend = LC_DEFAULT_COUNT_PERSEND;
	lcconf->secret_size = LC_DEFAULT_SECRETSIZE;
	lcconf->retry_checkph1 = LC_DEFAULT_RETRY_CHECKPH1;
	lcconf->wait_ph2complete = LC_DEFAULT_WAIT_PH2COMPLETE;
	lcconf->strict_address = FALSE;
	lcconf->complex_bundle = TRUE; /*XXX FALSE;*/
	lcconf->gss_id_enc = LC_GSSENC_UTF16LE; /* Windows compatibility */
	lcconf->natt_ka_interval = LC_DEFAULT_NATT_KA_INTERVAL;
	lcconf->auto_exit_delay = 0;
	lcconf->auto_exit_state &= ~LC_AUTOEXITSTATE_SET;
	lcconf->auto_exit_state |= LC_AUTOEXITSTATE_CLIENT;				/* always auto exit as default */
}

/*
 * get PSK by string.
 */
vchar_t *
getpskbyname(id0)
	vchar_t *id0;
{
	char *id;
	vchar_t *key = NULL;

	id = racoon_calloc(1, 1 + id0->l - sizeof(struct ipsecdoi_id_b));
	if (id == NULL) {
		plog(LLV_ERROR, LOCATION, NULL,
			"failed to get psk buffer.\n");
		goto end;
	}
	memcpy(id, id0->v + sizeof(struct ipsecdoi_id_b),
		id0->l - sizeof(struct ipsecdoi_id_b));
	id[id0->l - sizeof(struct ipsecdoi_id_b)] = '\0';

	key = privsep_getpsk(id, id0->l - sizeof(struct ipsecdoi_id_b));

end:
	if (id)
		racoon_free(id);
	return key;
}

#if defined(__APPLE__) && HAVE_KEYCHAIN
/*
 * get PSK from keyChain.
 */
vchar_t *
getpskfromkeychain(const char *name, u_int8_t etype, int secrettype, vchar_t *id_p)
{
	SecKeychainRef keychain = NULL;
	vchar_t *key = NULL;
	void *cur_password = NULL;
	UInt32 cur_password_len	= 0;
	OSStatus status;
	char serviceName[] = "com.apple.net.racoon";

	status = SecKeychainSetPreferenceDomain(kSecPreferencesDomainSystem);
	if (status != noErr) {
		plog(LLV_ERROR, LOCATION, NULL,
			"failed to set system keychain domain.\n");
		goto end;
	}

	status = SecKeychainCopyDomainDefault(kSecPreferencesDomainSystem,
					      &keychain);
	if (status != noErr) {
		plog(LLV_ERROR, LOCATION, NULL,
			"failed to get system keychain domain.\n");
		goto end;
	}

	if (secrettype == SECRETTYPE_KEYCHAIN_BY_ID && etype == ISAKMP_ETYPE_AGG) {
		/* try looking up based on peers id */
		
		char* peer_id;
		int idlen = id_p->l - sizeof(struct ipsecdoi_id_b);
		u_int8_t id_type = ((struct ipsecdoi_id_b *)(id_p->v))->type;

		switch (id_type) {
			case IPSECDOI_ID_IPV4_ADDR:
			case IPSECDOI_ID_IPV6_ADDR:
			case IPSECDOI_ID_IPV4_ADDR_SUBNET:
			case IPSECDOI_ID_IPV4_ADDR_RANGE:
			case IPSECDOI_ID_IPV6_ADDR_SUBNET:
			case IPSECDOI_ID_IPV6_ADDR_RANGE:
			case IPSECDOI_ID_DER_ASN1_DN:
			case IPSECDOI_ID_DER_ASN1_GN:
				goto no_id;
				break;
				
			case IPSECDOI_ID_FQDN:
			case IPSECDOI_ID_USER_FQDN:
			case IPSECDOI_ID_KEY_ID:
				peer_id = racoon_malloc(idlen);
				if (peer_id == NULL)
					goto end;
				memcpy(peer_id, id_p->v + sizeof(struct ipsecdoi_id_b), idlen);
				*(peer_id + idlen) = '\0';
				plog(LLV_ERROR, LOCATION, NULL,
					"getting shared secret from keychain using %s.\n", peer_id);

				break;
			default:
				goto end;
				break;
		}
						
		status = SecKeychainFindGenericPassword(keychain,
								strlen(serviceName),
								serviceName,
								idlen,
								peer_id,
								&cur_password_len,
								&cur_password,
								NULL);

		/* try find it using using only the peer id. */
		if (status == errSecItemNotFound) 
			status = SecKeychainFindGenericPassword(keychain,
								idlen,
								peer_id,
								0,
								0,
								&cur_password_len,
								&cur_password,
								NULL);
	
		if (status == noErr)
			goto end;
		/* otherwise fall through to use the default value */
	}
	
no_id:
	/*	use the value in remote config sharedsecret field
		this is either the value specified for lookup or the 
		default when lookup by id fails.
	*/
	status = SecKeychainFindGenericPassword(keychain,
							strlen(serviceName),
							serviceName,
							strlen(name),
							name,
							&cur_password_len,
							&cur_password,
							NULL);
								
	/* try find it using using only name. */
	if (status == errSecItemNotFound) 
		status = SecKeychainFindGenericPassword(keychain,
							strlen(name),
							name,
							0,
							0,
							&cur_password_len,
							&cur_password,
							NULL);

	switch (status) {

		case noErr :
			goto end;
			break;

		case errSecItemNotFound :
			break;

		default :
			plog(LLV_ERROR, LOCATION, NULL,
				"failed to get preshared key from system keychain (error %d).\n", status);
	}

end:

        if (cur_password) {
                key = vmalloc(cur_password_len + 1);
                if (key == NULL) {
                        plog(LLV_ERROR, LOCATION, NULL,
                                "failed to allocate key buffer.\n");
                } else {
					memcpy(key->v, cur_password, key->l);
					key->v[cur_password_len] = 0;
                }
			free(cur_password);
        }
        
        if (keychain)
            CFRelease(keychain);

	return key;
}
#endif

/*
 * get PSK by address.
 */
vchar_t *
getpskbyaddr(remote)
	struct sockaddr *remote;
{
	vchar_t *key = NULL;
	char addr[NI_MAXHOST], port[NI_MAXSERV];

	GETNAMEINFO(remote, addr, port);

	key = privsep_getpsk(addr, strlen(addr));

	return key;
}

vchar_t *
getpsk(str, len)
	const char *str;
	const int len;
{
	FILE *fp;
	char buf[1024];	/* XXX how is variable length ? */
	vchar_t *key = NULL;
	char *p, *q;
	size_t keylen;
	char *k = NULL;

	if (safefile(lcconf->pathinfo[LC_PATHTYPE_PSK], 1) == 0)
		fp = fopen(lcconf->pathinfo[LC_PATHTYPE_PSK], "r");
	else
		fp = NULL;
	if (fp == NULL) {
		plog(LLV_ERROR, LOCATION, NULL,
			"failed to open pre_share_key file %s\n",
			lcconf->pathinfo[LC_PATHTYPE_PSK]);
		return NULL;
	}

	while (fgets(buf, sizeof(buf), fp) != NULL) {
		/* comment line */
		if (buf[0] == '#')
			continue;

		/* search the end of 1st string. */
		for (p = buf; *p != '\0' && !isspace((int)*p); p++)
			;
		if (*p == '\0')
			continue;	/* no 2nd parameter */
		*p = '\0';
		/* search the 1st of 2nd string. */
		while (isspace((int)*++p))
			;
		if (*p == '\0')
			continue;	/* no 2nd parameter */
		p--;
		if (strncmp(buf, str, len) == 0 && buf[len] == '\0') {
			p++;
			keylen = 0;
			for (q = p; *q != '\0' && *q != '\n'; q++)
				keylen++;
			*q = '\0';

			/* fix key if hex string */
			if (strncmp(p, "0x", 2) == 0) {
				k = str2val(p + 2, 16, &keylen);
				if (k == NULL) {
					plog(LLV_ERROR, LOCATION, NULL,
						"failed to get psk buffer.\n");
					goto end;
				}
				p = k;
			}

			key = vmalloc(keylen);
			if (key == NULL) {
				plog(LLV_ERROR, LOCATION, NULL,
					"failed to allocate key buffer.\n");
				goto end;
			}
			memcpy(key->v, p, key->l);
			if (k)
				racoon_free(k);
			goto end;
		}
	}

end:
	fclose(fp);
	return key;
}

/*
 * get a file name of a type specified.
 */
void
getpathname(path, len, type, name)
	char *path;
	int len, type;
	const char *name;
{
	snprintf(path, len, "%s%s%s", 
		name[0] == '/' ? "" : lcconf->pathinfo[type],
		name[0] == '/' ? "" : "/",
		name);

	plog(LLV_DEBUG, LOCATION, NULL, "filename: %s\n", path);
}

#if 0 /* DELETEIT */
static int lc_doi2idtype[] = {
	-1,
	-1,
	LC_IDENTTYPE_FQDN,
	LC_IDENTTYPE_USERFQDN,
	-1,
	-1,
	-1,
	-1,
	-1,
	LC_IDENTTYPE_CERTNAME,
	-1,
	LC_IDENTTYPE_KEYID,
};

/*
 * convert DOI value to idtype
 * OUT	-1   : NG
 *	other: converted.
 */
int
doi2idtype(idtype)
	int idtype;
{
	if (ARRAYLEN(lc_doi2idtype) > idtype)
		return lc_doi2idtype[idtype];
	return -1;
}
#endif

static int lc_sittype2doi[] = {
	IPSECDOI_SIT_IDENTITY_ONLY,
	IPSECDOI_SIT_SECRECY,
	IPSECDOI_SIT_INTEGRITY,
};

/*
 * convert sittype to DOI value.
 * OUT	-1   : NG
 *	other: converted.
 */
int
sittype2doi(sittype)
	int sittype;
{
	if (ARRAYLEN(lc_sittype2doi) > sittype)
		return lc_sittype2doi[sittype];
	return -1;
}

static int lc_doitype2doi[] = {
	IPSEC_DOI,
};

/*
 * convert doitype to DOI value.
 * OUT	-1   : NG
 *	other: converted.
 */
int
doitype2doi(doitype)
	int doitype;
{
	if (ARRAYLEN(lc_doitype2doi) > doitype)
		return lc_doitype2doi[doitype];
	return -1;
}
Commit	Line	Data
52b7d2ce A	1	/* $KAME: localconf.c,v 1.33 2001/08/09 07:32:19 sakane 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
	37	#include <stdlib.h>
	38	#include <stdio.h>
	39	#include <string.h>
	40	#include <errno.h>
	41	#include <ctype.h>
	42	#include <err.h>
	43
	44	#include "var.h"
	45	#include "misc.h"
	46	#include "vmbuf.h"
	47	#include "plog.h"
	48	#include "debug.h"
	49
	50	#include "localconf.h"
	51	#include "algorithm.h"
	52	#include "admin.h"
	53	#include "privsep.h"
	54	#include "isakmp_var.h"
	55	#include "isakmp.h"
	56	#include "ipsec_doi.h"
	57	#include "grabmyaddr.h"
	58	#include "vendorid.h"
	59	#include "str2val.h"
	60	#include "safefile.h"
	61	#include "admin.h"
	62	#include "gcmalloc.h"
	63	#include "session.h"
	64
65	#ifdef __APPLE__
66	#include <CoreFoundation/CoreFoundation.h>
d1e348cf	67	#if HAVE_SECURITY_FRAMEWORK
52b7d2ce	68	#include <Security/Security.h>
d1e348cf A	69	#else
	70	typedef void * SecKeychainRef;
	71	#endif
52b7d2ce A	72	#endif
	73
	74	struct localconf *lcconf;
	75
	76	static void setdefault __P((void));
	77
	78	void
	79	initlcconf()
	80	{
	81	lcconf = racoon_calloc(1, sizeof(*lcconf));
	82	if (lcconf == NULL)
	83	errx(1, "failed to allocate local conf.");
	84
	85	setdefault();
	86	lcconf->sock_vpncontrol = -1; /* not to be done during flush */
	87	lcconf->racoon_conf = LC_DEFAULT_CF;
fd507379	88	TAILQ_INIT(&lcconf->saved_msg_queue);
52b7d2ce A	89	}
	90
	91	void
	92	flushlcconf()
	93	{
	94	int i;
	95
	96	setdefault();
	97	clear_myaddr();
	98	for (i = 0; i < LC_PATHTYPE_MAX; i++) {
	99	if (lcconf->pathinfo[i]) {
	100	racoon_free(lcconf->pathinfo[i]);
	101	lcconf->pathinfo[i] = NULL;
	102	}
	103	}
	104	for (i = 0; i < LC_IDENTTYPE_MAX; i++) {
	105	if (lcconf->ident[i])
	106	vfree(lcconf->ident[i]);
	107	lcconf->ident[i] = NULL;
	108	}
05434fec A	109	if (lcconf->ext_nat_id) {
	110	vfree(lcconf->ext_nat_id);
	111	lcconf->ext_nat_id = NULL;
	112	}
52b7d2ce A	113	}
	114
	115	static void
	116	setdefault()
	117	{
	118	lcconf->uid = 0;
	119	lcconf->gid = 0;
	120	lcconf->chroot = NULL;
	121	lcconf->autograbaddr = 1;
	122	lcconf->port_isakmp = PORT_ISAKMP;
	123	lcconf->port_isakmp_natt = PORT_ISAKMP_NATT;
	124	lcconf->default_af = AF_INET;
	125	lcconf->pad_random = LC_DEFAULT_PAD_RANDOM;
	126	lcconf->pad_randomlen = LC_DEFAULT_PAD_RANDOMLEN;
	127	lcconf->pad_maxsize = LC_DEFAULT_PAD_MAXSIZE;
	128	lcconf->pad_strict = LC_DEFAULT_PAD_STRICT;
	129	lcconf->pad_excltail = LC_DEFAULT_PAD_EXCLTAIL;
	130	lcconf->retry_counter = LC_DEFAULT_RETRY_COUNTER;
	131	lcconf->retry_interval = LC_DEFAULT_RETRY_INTERVAL;
	132	lcconf->count_persend = LC_DEFAULT_COUNT_PERSEND;
	133	lcconf->secret_size = LC_DEFAULT_SECRETSIZE;
	134	lcconf->retry_checkph1 = LC_DEFAULT_RETRY_CHECKPH1;
	135	lcconf->wait_ph2complete = LC_DEFAULT_WAIT_PH2COMPLETE;
	136	lcconf->strict_address = FALSE;
	137	lcconf->complex_bundle = TRUE; /XXX FALSE;/
	138	lcconf->gss_id_enc = LC_GSSENC_UTF16LE; /* Windows compatibility */
	139	lcconf->natt_ka_interval = LC_DEFAULT_NATT_KA_INTERVAL;
	140	lcconf->auto_exit_delay = 0;
	141	lcconf->auto_exit_state &= ~LC_AUTOEXITSTATE_SET;
d1e348cf	142	lcconf->auto_exit_state \|= LC_AUTOEXITSTATE_CLIENT; /* always auto exit as default */
52b7d2ce A	143	}
	144
	145	/*
	146	* get PSK by string.
	147	*/
	148	vchar_t *
	149	getpskbyname(id0)
	150	vchar_t *id0;
	151	{
	152	char *id;
	153	vchar_t *key = NULL;
	154
	155	id = racoon_calloc(1, 1 + id0->l - sizeof(struct ipsecdoi_id_b));
	156	if (id == NULL) {
	157	plog(LLV_ERROR, LOCATION, NULL,
	158	"failed to get psk buffer.\n");
	159	goto end;
	160	}
	161	memcpy(id, id0->v + sizeof(struct ipsecdoi_id_b),
	162	id0->l - sizeof(struct ipsecdoi_id_b));
	163	id[id0->l - sizeof(struct ipsecdoi_id_b)] = '\0';
	164
	165	key = privsep_getpsk(id, id0->l - sizeof(struct ipsecdoi_id_b));
	166
	167	end:
	168	if (id)
	169	racoon_free(id);
	170	return key;
	171	}
	172
d1e348cf	173	#if defined(__APPLE__) && HAVE_KEYCHAIN
52b7d2ce A	174	/*
	175	* get PSK from keyChain.
	176	*/
	177	vchar_t *
	178	getpskfromkeychain(const char name, u_int8_t etype, int secrettype, vchar_t id_p)
	179	{
	180	SecKeychainRef keychain = NULL;
	181	vchar_t *key = NULL;
	182	void *cur_password = NULL;
	183	UInt32 cur_password_len = 0;
	184	OSStatus status;
	185	char serviceName[] = "com.apple.net.racoon";
	186
	187	status = SecKeychainSetPreferenceDomain(kSecPreferencesDomainSystem);
	188	if (status != noErr) {
	189	plog(LLV_ERROR, LOCATION, NULL,
	190	"failed to set system keychain domain.\n");
	191	goto end;
	192	}
	193
	194	status = SecKeychainCopyDomainDefault(kSecPreferencesDomainSystem,
	195	&keychain);
	196	if (status != noErr) {
	197	plog(LLV_ERROR, LOCATION, NULL,
	198	"failed to get system keychain domain.\n");
	199	goto end;
	200	}
	201
	202	if (secrettype == SECRETTYPE_KEYCHAIN_BY_ID && etype == ISAKMP_ETYPE_AGG) {
	203	/* try looking up based on peers id */
	204
	205	char* peer_id;
	206	int idlen = id_p->l - sizeof(struct ipsecdoi_id_b);
	207	u_int8_t id_type = ((struct ipsecdoi_id_b *)(id_p->v))->type;
	208
	209	switch (id_type) {
	210	case IPSECDOI_ID_IPV4_ADDR:
	211	case IPSECDOI_ID_IPV6_ADDR:
	212	case IPSECDOI_ID_IPV4_ADDR_SUBNET:
	213	case IPSECDOI_ID_IPV4_ADDR_RANGE:
	214	case IPSECDOI_ID_IPV6_ADDR_SUBNET:
	215	case IPSECDOI_ID_IPV6_ADDR_RANGE:
	216	case IPSECDOI_ID_DER_ASN1_DN:
	217	case IPSECDOI_ID_DER_ASN1_GN:
d1e348cf	218	goto no_id;
52b7d2ce A	219	break;
	220
	221	case IPSECDOI_ID_FQDN:
	222	case IPSECDOI_ID_USER_FQDN:
	223	case IPSECDOI_ID_KEY_ID:
	224	peer_id = racoon_malloc(idlen);
	225	if (peer_id == NULL)
	226	goto end;
	227	memcpy(peer_id, id_p->v + sizeof(struct ipsecdoi_id_b), idlen);
	228	*(peer_id + idlen) = '\0';
	229	plog(LLV_ERROR, LOCATION, NULL,
	230	"getting shared secret from keychain using %s.\n", peer_id);
	231
	232	break;
	233	default:
	234	goto end;
	235	break;
	236	}
	237
	238	status = SecKeychainFindGenericPassword(keychain,
	239	strlen(serviceName),
	240	serviceName,
	241	idlen,
	242	peer_id,
	243	&cur_password_len,
	244	&cur_password,
	245	NULL);
	246
d1e348cf A	247	/* try find it using using only the peer id. */
	248	if (status == errSecItemNotFound)
	249	status = SecKeychainFindGenericPassword(keychain,
	250	idlen,
	251	peer_id,
	252	0,
	253	0,
	254	&cur_password_len,
	255	&cur_password,
	256	NULL);
	257
52b7d2ce A	258	if (status == noErr)
	259	goto end;
	260	/* otherwise fall through to use the default value */
	261	}
	262
d1e348cf	263	no_id:
52b7d2ce A	264	/* use the value in remote config sharedsecret field
	265	this is either the value specified for lookup or the
	266	default when lookup by id fails.
	267	*/
	268	status = SecKeychainFindGenericPassword(keychain,
	269	strlen(serviceName),
	270	serviceName,
	271	strlen(name),
	272	name,
	273	&cur_password_len,
	274	&cur_password,
	275	NULL);
	276
	277	/* try find it using using only name. */
	278	if (status == errSecItemNotFound)
	279	status = SecKeychainFindGenericPassword(keychain,
	280	strlen(name),
	281	name,
	282	0,
	283	0,
	284	&cur_password_len,
	285	&cur_password,
	286	NULL);
	287
	288	switch (status) {
	289
	290	case noErr :
	291	goto end;
	292	break;
	293
	294	case errSecItemNotFound :
	295	break;
	296
	297	default :
	298	plog(LLV_ERROR, LOCATION, NULL,
	299	"failed to get preshared key from system keychain (error %d).\n", status);
	300	}
	301
	302	end:
	303
	304	if (cur_password) {
	305	key = vmalloc(cur_password_len + 1);
	306	if (key == NULL) {
	307	plog(LLV_ERROR, LOCATION, NULL,
	308	"failed to allocate key buffer.\n");
	309	} else {
	310	memcpy(key->v, cur_password, key->l);
	311	key->v[cur_password_len] = 0;
	312	}
	313	free(cur_password);
	314	}
	315
	316	if (keychain)
	317	CFRelease(keychain);
	318
	319	return key;
	320	}
	321	#endif
	322
	323	/*
	324	* get PSK by address.
	325	*/
	326	vchar_t *
	327	getpskbyaddr(remote)
328	struct sockaddr *remote;
329	{
330	vchar_t *key = NULL;
331	char addr[NI_MAXHOST], port[NI_MAXSERV];
332
333	GETNAMEINFO(remote, addr, port);
334
335	key = privsep_getpsk(addr, strlen(addr));
336
337	return key;
338	}
339
340	vchar_t *
341	getpsk(str, len)
342	const char *str;
343	const int len;
344	{
345	FILE *fp;
346	char buf[1024]; /* XXX how is variable length ? */
347	vchar_t *key = NULL;
348	char p, q;
349	size_t keylen;
350	char *k = NULL;
351
352	if (safefile(lcconf->pathinfo[LC_PATHTYPE_PSK], 1) == 0)
353	fp = fopen(lcconf->pathinfo[LC_PATHTYPE_PSK], "r");
354	else
355	fp = NULL;
356	if (fp == NULL) {
357	plog(LLV_ERROR, LOCATION, NULL,
358	"failed to open pre_share_key file %s\n",
359	lcconf->pathinfo[LC_PATHTYPE_PSK]);
360	return NULL;
361	}
362
363	while (fgets(buf, sizeof(buf), fp) != NULL) {
364	/* comment line */
365	if (buf[0] == '#')
366	continue;
367
368	/* search the end of 1st string. */
369	for (p = buf; p != '\0' && !isspace((int)p); p++)
370	;
371	if (*p == '\0')
372	continue; /* no 2nd parameter */
373	*p = '\0';
374	/* search the 1st of 2nd string. */
375	while (isspace((int)*++p))
376	;
377	if (*p == '\0')
378	continue; /* no 2nd parameter */
379	p--;
380	if (strncmp(buf, str, len) == 0 && buf[len] == '\0') {
381	p++;
382	keylen = 0;
383	for (q = p; q != '\0' && q != '\n'; q++)
384	keylen++;
385	*q = '\0';
386
387	/* fix key if hex string */
388	if (strncmp(p, "0x", 2) == 0) {
389	k = str2val(p + 2, 16, &keylen);
390	if (k == NULL) {
391	plog(LLV_ERROR, LOCATION, NULL,
392	"failed to get psk buffer.\n");
393	goto end;
394	}
395	p = k;
396	}
397
398	key = vmalloc(keylen);
399	if (key == NULL) {
400	plog(LLV_ERROR, LOCATION, NULL,
401	"failed to allocate key buffer.\n");
402	goto end;
403	}
404	memcpy(key->v, p, key->l);
405	if (k)
406	racoon_free(k);
407	goto end;
408	}
409	}
410
411	end:
412	fclose(fp);
413	return key;
414	}
415
416	/*
417	* get a file name of a type specified.
418	*/
419	void
420	getpathname(path, len, type, name)
421	char *path;
422	int len, type;
423	const char *name;
424	{
425	snprintf(path, len, "%s%s%s",
426	name[0] == '/' ? "" : lcconf->pathinfo[type],
427	name[0] == '/' ? "" : "/",
428	name);
429
430	plog(LLV_DEBUG, LOCATION, NULL, "filename: %s\n", path);
431	}
432
433	#if 0 /* DELETEIT */
434	static int lc_doi2idtype[] = {
435	-1,
436	-1,
437	LC_IDENTTYPE_FQDN,
438	LC_IDENTTYPE_USERFQDN,
439	-1,
440	-1,
441	-1,
442	-1,
443	-1,
444	LC_IDENTTYPE_CERTNAME,
445	-1,
446	LC_IDENTTYPE_KEYID,
447	};
448
449	/*
450	* convert DOI value to idtype
451	* OUT -1 : NG
452	* other: converted.
453	*/
454	int
455	doi2idtype(idtype)
456	int idtype;
457	{
458	if (ARRAYLEN(lc_doi2idtype) > idtype)
459	return lc_doi2idtype[idtype];
460	return -1;
461	}
462	#endif
463
464	static int lc_sittype2doi[] = {
465	IPSECDOI_SIT_IDENTITY_ONLY,
466	IPSECDOI_SIT_SECRECY,
467	IPSECDOI_SIT_INTEGRITY,
468	};
469
470	/*
471	* convert sittype to DOI value.
472	* OUT -1 : NG
473	* other: converted.
474	*/
475	int
476	sittype2doi(sittype)
477	int sittype;
478	{
479	if (ARRAYLEN(lc_sittype2doi) > sittype)
480	return lc_sittype2doi[sittype];
481	return -1;
482	}
483
484	static int lc_doitype2doi[] = {
485	IPSEC_DOI,
486	};
487
488	/*
489	* convert doitype to DOI value.
490	* OUT -1 : NG
491	* other: converted.
492	*/
493	int
494	doitype2doi(doitype)
495	int doitype;
496	{
497	if (ARRAYLEN(lc_doitype2doi) > doitype)
498	return lc_doitype2doi[doitype];
499	return -1;
500	}
501
d1e348cf A	502
d1e348cf A	503