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

 /*	$NetBSD: setkey.c,v 1.11.6.1 2007/08/01 11:52:23 vanhu Exp $	*/

 /*	$KAME: setkey.c,v 1.36 2003/09/24 23:52:51 itojun Exp $	*/

 /*
  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 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.
  */

 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif

 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/time.h>
 #include <sys/stat.h>
 #ifndef ANDROID_CHANGES
 #include <sys/sysctl.h>
 #endif
 #include <err.h>
 #include <netinet/in.h>
 #include <net/pfkeyv2.h>
 #include PATH_IPSEC_H

 #include <stdio.h>
 #include <stdlib.h>
 #include <limits.h>
 #include <string.h>
 #include <ctype.h>
 #include <unistd.h>
 #include <errno.h>
 #include <netdb.h>
 #include <fcntl.h>
 #include <dirent.h>
 #include <time.h>

 #ifdef HAVE_READLINE
 #include <readline/readline.h>
 #include <readline/history.h>
 #endif

 #include "config.h"
 #include "libpfkey.h"
 #include "package_version.h"
 #define extern /* so that variables in extern.h are not extern... */
 #include "extern.h"

 #define strlcpy(d,s,l) (strncpy(d,s,l), (d)[(l)-1] = '\0')

 void usage __P((int));
 int main __P((int, char **));
 int get_supported __P((void));
 void sendkeyshort __P((u_int));
 void promisc __P((void));
 int postproc __P((struct sadb_msg *, int));
 int verifypriority __P((struct sadb_msg *m));
 int fileproc __P((const char *));
 const char *numstr __P((int));
 void shortdump_hdr __P((void));
 void shortdump __P((struct sadb_msg *));
 static void printdate __P((void));
 static int32_t gmt2local __P((time_t));
 void stdin_loop __P((void));

 #ifdef ANDROID_CHANGES
 #include <stdarg.h>
 void err(int eval, const char *fmt, ...) {
 	va_list p;
 	va_start(p, fmt);
 	fprintf(stderr, fmt, p);
 	va_end(p);
 	exit(eval);
 }
 #define errx err
 void warnx(const char *fmt, ...) {
 	va_list p;
 	va_start(p, fmt);
 	fprintf(stderr, fmt, p);
 	va_end(p);
 }
 #endif

 #define MODE_SCRIPT	1
 #define MODE_CMDDUMP	2
 #define MODE_CMDFLUSH	3
 #define MODE_PROMISC	4
 #define MODE_STDIN	5

 int so;

 int f_forever = 0;
 int f_all = 0;
 int f_verbose = 0;
 int f_mode = 0;
 int f_cmddump = 0;
 int f_policy = 0;
 int f_hexdump = 0;
 int f_tflag = 0;
 int f_notreally = 0;
 int f_withports = 0;
 #ifdef HAVE_POLICY_FWD
 int f_rfcmode = 1;
 #define RK_OPTS "rk"
 #else
 int f_rkwarn = 0;
 #define RK_OPTS ""
 static void rkwarn(void);
 static void
 rkwarn(void)
 {
 	if (!f_rkwarn) {
 		f_rkwarn = 1;
 		printf("warning: -r and -k options are not supported in this environment\n");
 	}
 }

 #endif
 static time_t thiszone;

 void
 usage(int only_version)
 {
 	printf("setkey @(#) %s (%s)\n", TOP_PACKAGE_STRING, TOP_PACKAGE_URL);
 	if (! only_version) {
 		printf("usage: setkey [-v" RK_OPTS "] file ...\n");
 		printf("       setkey [-nv" RK_OPTS "] -c\n");
 		printf("       setkey [-nv" RK_OPTS "] -f filename\n");
 		printf("       setkey [-Palpv" RK_OPTS "] -D\n");
 		printf("       setkey [-Pv] -F\n");
 		printf("       setkey [-H] -x\n");
 		printf("       setkey [-V] [-h]\n");
 	}
 	exit(1);
 }

 int
 main(argc, argv)
 	int argc;
 	char **argv;
 {
 	FILE *fp = stdin;
 	int c;

 	if (argc == 1) {
 		usage(0);
 		/* NOTREACHED */
 	}

 	thiszone = gmt2local(0);

 	while ((c = getopt(argc, argv, "acdf:HlnvxDFPphVrk?")) != -1) {
 		switch (c) {
 		case 'c':
 			f_mode = MODE_STDIN;
 #ifdef HAVE_READLINE
 			/* disable filename completion */
 			rl_bind_key('\t', rl_insert);
 #endif
 			break;
 		case 'f':
 			f_mode = MODE_SCRIPT;
 			if ((fp = fopen(optarg, "r")) == NULL) {
 				err(1, "fopen");
 				/*NOTREACHED*/
 			}
 			break;
 		case 'D':
 			f_mode = MODE_CMDDUMP;
 			break;
 		case 'F':
 			f_mode = MODE_CMDFLUSH;
 			break;
 		case 'a':
 			f_all = 1;
 			break;
 		case 'l':
 			f_forever = 1;
 			break;
 		case 'n':
 			f_notreally = 1;
 			break;
 #ifdef __NetBSD__
 		case 'h':
 #endif
 		case 'H':
 			f_hexdump = 1;
 			break;
 		case 'x':
 			f_mode = MODE_PROMISC;
 			f_tflag++;
 			break;
 		case 'P':
 			f_policy = 1;
 			break;
 		case 'p':
 			f_withports = 1;
 			break;
 		case 'v':
 			f_verbose = 1;
 			break;
 		case 'r':
 #ifdef HAVE_POLICY_FWD
 			f_rfcmode = 1;
 #else
 			rkwarn();
 #endif
 			break;
 		case 'k':
 #ifdef HAVE_POLICY_FWD
 			f_rfcmode = 0;
 #else
 			rkwarn();
 #endif
 			break;
 		case 'V':
 			usage(1);
 			break;
 			/*NOTREACHED*/
 #ifndef __NetBSD__
 		case 'h':
 #endif
 		case '?':
 		default:
 			usage(0);
 			/*NOTREACHED*/
 		}
 	}

 	argc -= optind;
 	argv += optind;

 	if (argc > 0) {
 		while (argc--)
 			if (fileproc(*argv++) < 0) {
 				err(1, "%s", argv[-1]);
 				/*NOTREACHED*/
 			}
 		exit(0);
 	}

 	so = pfkey_open();
 	if (so < 0) {
 		perror("pfkey_open");
 		exit(1);
 	}

 	switch (f_mode) {
 	case MODE_CMDDUMP:
 		sendkeyshort(f_policy ? SADB_X_SPDDUMP : SADB_DUMP);
 		break;
 	case MODE_CMDFLUSH:
 		sendkeyshort(f_policy ? SADB_X_SPDFLUSH: SADB_FLUSH);
 		break;
 	case MODE_SCRIPT:
 		if (get_supported() < 0) {
 			errx(1, "%s", ipsec_strerror());
 			/*NOTREACHED*/
 		}
 		if (parse(&fp))
 			exit (1);
 		break;
 	case MODE_STDIN:
 		if (get_supported() < 0) {
 			errx(1, "%s", ipsec_strerror());
 			/*NOTREACHED*/
 		}
 		stdin_loop();
 		break;
 	case MODE_PROMISC:
 		promisc();
 		/*NOTREACHED*/
 	default:
 		usage(0);
 		/*NOTREACHED*/
 	}

 	exit(0);
 }

 int
 get_supported()
 {

 	if (pfkey_send_register(so, SADB_SATYPE_UNSPEC) < 0)
 		return -1;

 	if (pfkey_recv_register(so) < 0)
 		return -1;

 	return (0);
 }

 void
 stdin_loop()
 {
 	char line[1024], *semicolon, *comment;
 	size_t linelen = 0;

 	memset (line, 0, sizeof(line));

 	parse_init();
 	while (1) {
 #ifdef HAVE_READLINE
 		char *rbuf;
 		rbuf = readline ("");
 		if (! rbuf)
 			break;
 #else
 		char rbuf[1024];
 		rbuf[0] = '\0';
 		fgets (rbuf, sizeof(rbuf), stdin);
 		if (!rbuf[0])
 			break;
 		if (rbuf[strlen(rbuf)-1] == '\n')
 			rbuf[strlen(rbuf)-1] = '\0';
 #endif
 		comment = strchr(rbuf, '#');
 		if (comment)
 			*comment = '\0';

 		if (!rbuf[0])
 			continue;

 		linelen += snprintf (&line[linelen], sizeof(line) - linelen,
 				     "%s%s", linelen > 0 ? " " : "", rbuf);

 		semicolon = strchr(line, ';');
 		while (semicolon) {
 			char saved_char = *++semicolon;
 			*semicolon = '\0';
 #ifdef HAVE_READLINE
 			add_history (line);
 #endif

 #ifdef HAVE_PFKEY_POLICY_PRIORITY
 			last_msg_type = -1;  /* invalid message type */
 #endif

 			parse_string (line);
 			if (exit_now)
 				return;
 			if (saved_char) {
 				*semicolon = saved_char;
 				linelen = strlen (semicolon);
 				memmove (line, semicolon, linelen + 1);
 				semicolon = strchr(line, ';');
 			}
 			else {
 				semicolon = NULL;
 				linelen = 0;
 			}
 		}
 	}
 }

 void
 sendkeyshort(type)
         u_int type;
 {
 	struct sadb_msg msg;

 	msg.sadb_msg_version = PF_KEY_V2;
 	msg.sadb_msg_type = type;
 	msg.sadb_msg_errno = 0;
 	msg.sadb_msg_satype = SADB_SATYPE_UNSPEC;
 	msg.sadb_msg_len = PFKEY_UNIT64(sizeof(msg));
 	msg.sadb_msg_reserved = 0;
 	msg.sadb_msg_seq = 0;
 	msg.sadb_msg_pid = getpid();

 	sendkeymsg((char *)&msg, sizeof(msg));

 	return;
 }

 void
 promisc()
 {
 	struct sadb_msg msg;
 	u_char rbuf[1024 * 32];	/* XXX: Enough ? Should I do MSG_PEEK ? */
 	ssize_t l;

 	msg.sadb_msg_version = PF_KEY_V2;
 	msg.sadb_msg_type = SADB_X_PROMISC;
 	msg.sadb_msg_errno = 0;
 	msg.sadb_msg_satype = 1;
 	msg.sadb_msg_len = PFKEY_UNIT64(sizeof(msg));
 	msg.sadb_msg_reserved = 0;
 	msg.sadb_msg_seq = 0;
 	msg.sadb_msg_pid = getpid();

 	if ((l = send(so, &msg, sizeof(msg), 0)) < 0) {
 		err(1, "send");
 		/*NOTREACHED*/
 	}

 	while (1) {
 		struct sadb_msg *base;

 		if ((l = recv(so, rbuf, sizeof(*base), MSG_PEEK)) < 0) {
 			err(1, "recv");
 			/*NOTREACHED*/
 		}

 		if (l != sizeof(*base))
 			continue;

 		base = (struct sadb_msg *)rbuf;
 		if ((l = recv(so, rbuf, PFKEY_UNUNIT64(base->sadb_msg_len),
 				0)) < 0) {
 			err(1, "recv");
 			/*NOTREACHED*/
 		}
 		printdate();
 		if (f_hexdump) {
 			int i;
 			for (i = 0; i < l; i++) {
 				if (i % 16 == 0)
 					printf("%08x: ", i);
 				printf("%02x ", rbuf[i] & 0xff);
 				if (i % 16 == 15)
 					printf("\n");
 			}
 			if (l % 16)
 				printf("\n");
 		}
 		/* adjust base pointer for promisc mode */
 		if (base->sadb_msg_type == SADB_X_PROMISC) {
 			if ((ssize_t)sizeof(*base) < l)
 				base++;
 			else
 				base = NULL;
 		}
 		if (base) {
 			kdebug_sadb(base);
 			printf("\n");
 			fflush(stdout);
 		}
 	}
 }

 int
 sendkeymsg(buf, len)
 	char *buf;
 	size_t len;
 {
 	u_char rbuf[1024 * 32];	/* XXX: Enough ? Should I do MSG_PEEK ? */
 	ssize_t l;
 	struct sadb_msg *msg;

 	if (f_notreally) {
 		goto end;
 	}

     {
 	struct timeval tv;
 	tv.tv_sec = 1;
 	tv.tv_usec = 0;
 	if (setsockopt(so, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
 		perror("setsockopt");
 		goto end;
 	}
     }

 	if (f_forever)
 		shortdump_hdr();
 again:
 	if (f_verbose) {
 		kdebug_sadb((struct sadb_msg *)buf);
 		printf("\n");
 	}
 	if (f_hexdump) {
 		int i;
 		for (i = 0; i < len; i++) {
 			if (i % 16 == 0)
 				printf("%08x: ", i);
 			printf("%02x ", buf[i] & 0xff);
 			if (i % 16 == 15)
 				printf("\n");
 		}
 		if (len % 16)
 			printf("\n");
 	}

 	if ((l = send(so, buf, len, 0)) < 0) {
 		perror("send");
 		goto end;
 	}

 	msg = (struct sadb_msg *)rbuf;
 	do {
 		if ((l = recv(so, rbuf, sizeof(rbuf), 0)) < 0) {
 			perror("recv");
 			goto end;
 		}

 		if (PFKEY_UNUNIT64(msg->sadb_msg_len) != l) {
 			warnx("invalid keymsg length");
 			break;
 		}

 		if (f_verbose) {
 			kdebug_sadb((struct sadb_msg *)rbuf);
 			printf("\n");
 		}
 		if (postproc(msg, l) < 0)
 			break;
 	} while (msg->sadb_msg_errno || msg->sadb_msg_seq);

 	if (f_forever) {
 		fflush(stdout);
 		sleep(1);
 		goto again;
 	}

 end:
 	return (0);
 }

 int
 postproc(msg, len)
 	struct sadb_msg *msg;
 	int len;
 {
 #ifdef HAVE_PFKEY_POLICY_PRIORITY
 	static int priority_support_check = 0;
 #endif

 	if (msg->sadb_msg_errno != 0) {
 		char inf[80];
 		const char *errmsg = NULL;

 		if (f_mode == MODE_SCRIPT)
 			snprintf(inf, sizeof(inf), "The result of line %d: ", lineno);
 		else
 			inf[0] = '\0';

 		switch (msg->sadb_msg_errno) {
 		case ENOENT:
 			switch (msg->sadb_msg_type) {
 			case SADB_DELETE:
 			case SADB_GET:
 			case SADB_X_SPDDELETE:
 				errmsg = "No entry";
 				break;
 			case SADB_DUMP:
 				errmsg = "No SAD entries";
 				break;
 			case SADB_X_SPDDUMP:
 				errmsg = "No SPD entries";
 				break;
 			}
 			break;
 		default:
 			errmsg = strerror(msg->sadb_msg_errno);
 		}
 		printf("%s%s.\n", inf, errmsg);
 		return (-1);
 	}

 	switch (msg->sadb_msg_type) {
 	case SADB_GET:
 		if (f_withports)
 			pfkey_sadump_withports(msg);
 		else
 			pfkey_sadump(msg);
 		break;

 	case SADB_DUMP:
 		/* filter out DEAD SAs */
 		if (!f_all) {
 			caddr_t mhp[SADB_EXT_MAX + 1];
 			struct sadb_sa *sa;
 			pfkey_align(msg, mhp);
 			pfkey_check(mhp);
 			if ((sa = (struct sadb_sa *)mhp[SADB_EXT_SA]) != NULL) {
 				if (sa->sadb_sa_state == SADB_SASTATE_DEAD)
 					break;
 			}
 		}
 		if (f_forever) {
 			/* TODO: f_withports */
 			shortdump(msg);
 		} else {
 			if (f_withports)
 				pfkey_sadump_withports(msg);
 			else
 				pfkey_sadump(msg);
 		}
 		msg = (struct sadb_msg *)((caddr_t)msg +
 				     PFKEY_UNUNIT64(msg->sadb_msg_len));
 		if (f_verbose) {
 			kdebug_sadb((struct sadb_msg *)msg);
 			printf("\n");
 		}
 		break;

 	case SADB_X_SPDGET:
 		if (f_withports)
 			pfkey_spdump_withports(msg);
 		else
 			pfkey_spdump(msg);
 		break;

 	case SADB_X_SPDDUMP:
 		if (f_withports)
 			pfkey_spdump_withports(msg);
 		else
 			pfkey_spdump(msg);
 		if (msg->sadb_msg_seq == 0) break;
 		msg = (struct sadb_msg *)((caddr_t)msg +
 				     PFKEY_UNUNIT64(msg->sadb_msg_len));
 		if (f_verbose) {
 			kdebug_sadb((struct sadb_msg *)msg);
 			printf("\n");
 		}
 		break;
 #ifdef HAVE_PFKEY_POLICY_PRIORITY
 	case SADB_X_SPDADD:
 		if (last_msg_type == SADB_X_SPDADD && last_priority != 0 &&
 		    msg->sadb_msg_pid == getpid() && !priority_support_check) {
 			priority_support_check = 1;
 			if (!verifypriority(msg))
 				printf ("WARNING: Kernel does not support policy priorities\n");
 		}
 		break;
 #endif
 	}

 	return (0);
 }

 #ifdef HAVE_PFKEY_POLICY_PRIORITY
 int
 verifypriority(m)
 	struct sadb_msg *m;
 {
 	caddr_t mhp[SADB_EXT_MAX + 1];
 	struct sadb_x_policy *xpl;

 	/* check pfkey message. */
 	if (pfkey_align(m, mhp)) {
 		printf("(%s\n", ipsec_strerror());
 		return 0;
 	}
 	if (pfkey_check(mhp)) {
 		printf("%s\n", ipsec_strerror());
 		return 0;
 	}

 	xpl = (struct sadb_x_policy *) mhp[SADB_X_EXT_POLICY];

 	if (xpl == NULL) {
 		printf("no X_POLICY extension.\n");
 		return 0;
 	}

 	/* now make sure they match */
 	if (last_priority != xpl->sadb_x_policy_priority)
 		return 0;

 	return 1;
 }
 #endif

 int
 fileproc(filename)
 	const char *filename;
 {
 	int fd;
 	ssize_t len, l;
 	u_char *p, *ep;
 	struct sadb_msg *msg;
 	u_char rbuf[1024 * 32];	/* XXX: Enough ? Should I do MSG_PEEK ? */

 	fd = open(filename, O_RDONLY);
 	if (fd < 0)
 		return -1;

 	l = 0;
 	while (1) {
 		len = read(fd, rbuf + l, sizeof(rbuf) - l);
 		if (len < 0) {
 			close(fd);
 			return -1;
 		} else if (len == 0)
 			break;
 		l += len;
 	}

 	if (l < sizeof(struct sadb_msg)) {
 		close(fd);
 		errno = EINVAL;
 		return -1;
 	}
 	close(fd);

 	p = rbuf;
 	ep = rbuf + l;

 	while (p < ep) {
 		msg = (struct sadb_msg *)p;
 		len = PFKEY_UNUNIT64(msg->sadb_msg_len);
 		postproc(msg, len);
 		p += len;
 	}

 	return (0);
 }


 /*------------------------------------------------------------*/
 static const char *satype[] = {
 	NULL, NULL, "ah", "esp"
 };
 static const char *sastate[] = {
 	"L", "M", "D", "d"
 };
 static const char *ipproto[] = {
 /*0*/	"ip", "icmp", "igmp", "ggp", "ip4",
 	NULL, "tcp", NULL, "egp", NULL,
 /*10*/	NULL, NULL, NULL, NULL, NULL,
 	NULL, NULL, "udp", NULL, NULL,
 /*20*/	NULL, NULL, "idp", NULL, NULL,
 	NULL, NULL, NULL, NULL, "tp",
 /*30*/	NULL, NULL, NULL, NULL, NULL,
 	NULL, NULL, NULL, NULL, NULL,
 /*40*/	NULL, "ip6", NULL, "rt6", "frag6",
 	NULL, "rsvp", "gre", NULL, NULL,
 /*50*/	"esp", "ah", NULL, NULL, NULL,
 	NULL, NULL, NULL, "icmp6", "none",
 /*60*/	"dst6",
 };

 #define STR_OR_ID(x, tab) \
 	(((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)])	? tab[(x)] : numstr(x))

 const char *
 numstr(x)
 	int x;
 {
 	static char buf[20];
 	snprintf(buf, sizeof(buf), "#%d", x);
 	return buf;
 }

 void
 shortdump_hdr()
 {
 	printf("%-4s %-3s %-1s %-8s %-7s %s -> %s\n",
 		"time", "p", "s", "spi", "ltime", "src", "dst");
 }

 void
 shortdump(msg)
 	struct sadb_msg *msg;
 {
 	caddr_t mhp[SADB_EXT_MAX + 1];
 	char buf[NI_MAXHOST], pbuf[NI_MAXSERV];
 	struct sadb_sa *sa;
 	struct sadb_address *saddr;
 	struct sadb_lifetime *lts, *lth, *ltc;
 	struct sockaddr *s;
 	u_int t;
 	time_t cur = time(0);

 	pfkey_align(msg, mhp);
 	pfkey_check(mhp);

 	printf("%02lu%02lu", (u_long)(cur % 3600) / 60, (u_long)(cur % 60));

 	printf(" %-3s", STR_OR_ID(msg->sadb_msg_satype, satype));

 	if ((sa = (struct sadb_sa *)mhp[SADB_EXT_SA]) != NULL) {
 		printf(" %-1s", STR_OR_ID(sa->sadb_sa_state, sastate));
 		printf(" %08x", (u_int32_t)ntohl(sa->sadb_sa_spi));
 	} else
 		printf("%-1s %-8s", "?", "?");

 	lts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
 	lth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 	ltc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
 	if (lts && lth && ltc) {
 		if (ltc->sadb_lifetime_addtime == 0)
 			t = (u_long)0;
 		else
 			t = (u_long)(cur - ltc->sadb_lifetime_addtime);
 		if (t >= 1000)
 			strlcpy(buf, " big/", sizeof(buf));
 		else
 			snprintf(buf, sizeof(buf), " %3lu/", (u_long)t);
 		printf("%s", buf);

 		t = (u_long)lth->sadb_lifetime_addtime;
 		if (t >= 1000)
 			strlcpy(buf, "big", sizeof(buf));
 		else
 			snprintf(buf, sizeof(buf), "%-3lu", (u_long)t);
 		printf("%s", buf);
 	} else
 		printf(" ??\?/???");	/* backslash to avoid trigraph ??/ */

 	printf(" ");

 	if ((saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]) != NULL) {
 		if (saddr->sadb_address_proto)
 			printf("%s ", STR_OR_ID(saddr->sadb_address_proto, ipproto));
 		s = (struct sockaddr *)(saddr + 1);
 		getnameinfo(s, sysdep_sa_len(s), buf, sizeof(buf),
 			pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV);
 		if (strcmp(pbuf, "0") != 0)
 			printf("%s[%s]", buf, pbuf);
 		else
 			printf("%s", buf);
 	} else
 		printf("?");

 	printf(" -> ");

 	if ((saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]) != NULL) {
 		if (saddr->sadb_address_proto)
 			printf("%s ", STR_OR_ID(saddr->sadb_address_proto, ipproto));

 		s = (struct sockaddr *)(saddr + 1);
 		getnameinfo(s, sysdep_sa_len(s), buf, sizeof(buf),
 			pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV);
 		if (strcmp(pbuf, "0") != 0)
 			printf("%s[%s]", buf, pbuf);
 		else
 			printf("%s", buf);
 	} else
 		printf("?");

 	printf("\n");
 }

 /* From: tcpdump(1):gmt2local.c and util.c */
 /*
  * Print the timestamp
  */
 static void
 printdate()
 {
 	struct timeval tp;
 	int s;

 	if (gettimeofday(&tp, NULL) == -1) {
 		perror("gettimeofday");
 		return;
 	}

 	if (f_tflag == 1) {
 		/* Default */
 		s = (tp.tv_sec + thiszone ) % 86400;
 		(void)printf("%02d:%02d:%02d.%06u ",
 		    s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tp.tv_usec);
 	} else if (f_tflag > 1) {
 		/* Unix timeval style */
 		(void)printf("%u.%06u ",
 		    (u_int32_t)tp.tv_sec, (u_int32_t)tp.tv_usec);
 	}

 	printf("\n");
 }

 /*
  * Returns the difference between gmt and local time in seconds.
  * Use gmtime() and localtime() to keep things simple.
  */
 int32_t
 gmt2local(time_t t)
 {
 	register int dt, dir;
 	register struct tm *gmt, *loc;
 	struct tm sgmt;

 	if (t == 0)
 		t = time(NULL);
 	gmt = &sgmt;
 	*gmt = *gmtime(&t);
 	loc = localtime(&t);
 	dt = (loc->tm_hour - gmt->tm_hour) * 60 * 60 +
 	    (loc->tm_min - gmt->tm_min) * 60;

 	/*
 	 * If the year or julian day is different, we span 00:00 GMT
 	 * and must add or subtract a day. Check the year first to
 	 * avoid problems when the julian day wraps.
 	 */
 	dir = loc->tm_year - gmt->tm_year;
 	if (dir == 0)
 		dir = loc->tm_yday - gmt->tm_yday;
 	dt += dir * 24 * 60 * 60;

 	return (dt);
 }
	/* $NetBSD: setkey.c,v 1.11.6.1 2007/08/01 11:52:23 vanhu Exp $ */

	/* $KAME: setkey.c,v 1.36 2003/09/24 23:52:51 itojun Exp $ */

	/*
	* Copyright (C) 1995, 1996, 1997, 1998, and 1999 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.
	*/

	#ifdef HAVE_CONFIG_H
	#include "config.h"
	#endif

	#include <sys/types.h>
	#include <sys/param.h>
	#include <sys/socket.h>
	#include <sys/time.h>
	#include <sys/stat.h>
	#ifndef ANDROID_CHANGES
	#include <sys/sysctl.h>
	#endif
	#include <err.h>
	#include <netinet/in.h>
	#include <net/pfkeyv2.h>
	#include PATH_IPSEC_H

	#include <stdio.h>
	#include <stdlib.h>
	#include <limits.h>
	#include <string.h>
	#include <ctype.h>
	#include <unistd.h>
	#include <errno.h>
	#include <netdb.h>
	#include <fcntl.h>
	#include <dirent.h>
	#include <time.h>

	#ifdef HAVE_READLINE
	#include <readline/readline.h>
	#include <readline/history.h>
	#endif

	#include "config.h"
	#include "libpfkey.h"
	#include "package_version.h"
	#define extern /* so that variables in extern.h are not extern... */
	#include "extern.h"

	#define strlcpy(d,s,l) (strncpy(d,s,l), (d)[(l)-1] = '\0')

	void usage __P((int));
	int main __P((int, char **));
	int get_supported __P((void));
	void sendkeyshort __P((u_int));
	void promisc __P((void));
	int postproc __P((struct sadb_msg *, int));
	int verifypriority __P((struct sadb_msg *m));
	int fileproc __P((const char *));
	const char *numstr __P((int));
	void shortdump_hdr __P((void));
	void shortdump __P((struct sadb_msg *));
	static void printdate __P((void));
	static int32_t gmt2local __P((time_t));
	void stdin_loop __P((void));

	#ifdef ANDROID_CHANGES
	#include <stdarg.h>
	void err(int eval, const char *fmt, ...) {
	va_list p;
	va_start(p, fmt);
	fprintf(stderr, fmt, p);
	va_end(p);
	exit(eval);
	}
	#define errx err
	void warnx(const char *fmt, ...) {
	va_list p;
	va_start(p, fmt);
	fprintf(stderr, fmt, p);
	va_end(p);
	}
	#endif

	#define MODE_SCRIPT 1
	#define MODE_CMDDUMP 2
	#define MODE_CMDFLUSH 3
	#define MODE_PROMISC 4
	#define MODE_STDIN 5

	int so;

	int f_forever = 0;
	int f_all = 0;
	int f_verbose = 0;
	int f_mode = 0;
	int f_cmddump = 0;
	int f_policy = 0;
	int f_hexdump = 0;
	int f_tflag = 0;
	int f_notreally = 0;
	int f_withports = 0;
	#ifdef HAVE_POLICY_FWD
	int f_rfcmode = 1;
	#define RK_OPTS "rk"
	#else
	int f_rkwarn = 0;
	#define RK_OPTS ""
	static void rkwarn(void);
	static void
	rkwarn(void)
	{
	if (!f_rkwarn) {
	f_rkwarn = 1;
	printf("warning: -r and -k options are not supported in this environment\n");
	}
	}

	#endif
	static time_t thiszone;

	void
	usage(int only_version)
	{
	printf("setkey @(#) %s (%s)\n", TOP_PACKAGE_STRING, TOP_PACKAGE_URL);
	if (! only_version) {
	printf("usage: setkey [-v" RK_OPTS "] file ...\n");
	printf(" setkey [-nv" RK_OPTS "] -c\n");
	printf(" setkey [-nv" RK_OPTS "] -f filename\n");
	printf(" setkey [-Palpv" RK_OPTS "] -D\n");
	printf(" setkey [-Pv] -F\n");
	printf(" setkey [-H] -x\n");
	printf(" setkey [-V] [-h]\n");
	}
	exit(1);
	}

	int
	main(argc, argv)
	int argc;
	char **argv;
	{
	FILE *fp = stdin;
	int c;

	if (argc == 1) {
	usage(0);
	/* NOTREACHED */
	}

	thiszone = gmt2local(0);

	while ((c = getopt(argc, argv, "acdf:HlnvxDFPphVrk?")) != -1) {
	switch (c) {
	case 'c':
	f_mode = MODE_STDIN;
	#ifdef HAVE_READLINE
	/* disable filename completion */
	rl_bind_key('\t', rl_insert);
	#endif
	break;
	case 'f':
	f_mode = MODE_SCRIPT;
	if ((fp = fopen(optarg, "r")) == NULL) {
	err(1, "fopen");
	/NOTREACHED/
	}
	break;
	case 'D':
	f_mode = MODE_CMDDUMP;
	break;
	case 'F':
	f_mode = MODE_CMDFLUSH;
	break;
	case 'a':
	f_all = 1;
	break;
	case 'l':
	f_forever = 1;
	break;
	case 'n':
	f_notreally = 1;
	break;
	#ifdef __NetBSD__
	case 'h':
	#endif
	case 'H':
	f_hexdump = 1;
	break;
	case 'x':
	f_mode = MODE_PROMISC;
	f_tflag++;
	break;
	case 'P':
	f_policy = 1;
	break;
	case 'p':
	f_withports = 1;
	break;
	case 'v':
	f_verbose = 1;
	break;
	case 'r':
	#ifdef HAVE_POLICY_FWD
	f_rfcmode = 1;
	#else
	rkwarn();
	#endif
	break;
	case 'k':
	#ifdef HAVE_POLICY_FWD
	f_rfcmode = 0;
	#else
	rkwarn();
	#endif
	break;
	case 'V':
	usage(1);
	break;
	/NOTREACHED/
	#ifndef __NetBSD__
	case 'h':
	#endif
	case '?':
	default:
	usage(0);
	/NOTREACHED/
	}
	}

	argc -= optind;
	argv += optind;

	if (argc > 0) {
	while (argc--)
	if (fileproc(*argv++) < 0) {
	err(1, "%s", argv[-1]);
	/NOTREACHED/
	}
	exit(0);
	}

	so = pfkey_open();
	if (so < 0) {
	perror("pfkey_open");
	exit(1);
	}

	switch (f_mode) {
	case MODE_CMDDUMP:
	sendkeyshort(f_policy ? SADB_X_SPDDUMP : SADB_DUMP);
	break;
	case MODE_CMDFLUSH:
	sendkeyshort(f_policy ? SADB_X_SPDFLUSH: SADB_FLUSH);
	break;
	case MODE_SCRIPT:
	if (get_supported() < 0) {
	errx(1, "%s", ipsec_strerror());
	/NOTREACHED/
	}
	if (parse(&fp))
	exit (1);
	break;
	case MODE_STDIN:
	if (get_supported() < 0) {
	errx(1, "%s", ipsec_strerror());
	/NOTREACHED/
	}
	stdin_loop();
	break;
	case MODE_PROMISC:
	promisc();
	/NOTREACHED/
	default:
	usage(0);
	/NOTREACHED/
	}

	exit(0);
	}

	int
	get_supported()
	{

	if (pfkey_send_register(so, SADB_SATYPE_UNSPEC) < 0)
	return -1;

	if (pfkey_recv_register(so) < 0)
	return -1;

	return (0);
	}

	void
	stdin_loop()
	{
	char line[1024], semicolon, comment;
	size_t linelen = 0;

	memset (line, 0, sizeof(line));

	parse_init();
	while (1) {
	#ifdef HAVE_READLINE
	char *rbuf;
	rbuf = readline ("");
	if (! rbuf)
	break;
	#else
	char rbuf[1024];
	rbuf[0] = '\0';
	fgets (rbuf, sizeof(rbuf), stdin);
	if (!rbuf[0])
	break;
	if (rbuf[strlen(rbuf)-1] == '\n')
	rbuf[strlen(rbuf)-1] = '\0';
	#endif
	comment = strchr(rbuf, '#');
	if (comment)
	*comment = '\0';

	if (!rbuf[0])
	continue;

	linelen += snprintf (&line[linelen], sizeof(line) - linelen,
	"%s%s", linelen > 0 ? " " : "", rbuf);

	semicolon = strchr(line, ';');
	while (semicolon) {
	char saved_char = *++semicolon;
	*semicolon = '\0';
	#ifdef HAVE_READLINE
	add_history (line);
	#endif

	#ifdef HAVE_PFKEY_POLICY_PRIORITY
	last_msg_type = -1; /* invalid message type */
	#endif

	parse_string (line);
	if (exit_now)
	return;
	if (saved_char) {
	*semicolon = saved_char;
	linelen = strlen (semicolon);
	memmove (line, semicolon, linelen + 1);
	semicolon = strchr(line, ';');
	}
	else {
	semicolon = NULL;
	linelen = 0;
	}
	}
	}
	}

	void
	sendkeyshort(type)
	u_int type;
	{
	struct sadb_msg msg;

	msg.sadb_msg_version = PF_KEY_V2;
	msg.sadb_msg_type = type;
	msg.sadb_msg_errno = 0;
	msg.sadb_msg_satype = SADB_SATYPE_UNSPEC;
	msg.sadb_msg_len = PFKEY_UNIT64(sizeof(msg));
	msg.sadb_msg_reserved = 0;
	msg.sadb_msg_seq = 0;
	msg.sadb_msg_pid = getpid();

	sendkeymsg((char *)&msg, sizeof(msg));

	return;
	}

	void
	promisc()
	{
	struct sadb_msg msg;
	u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */
	ssize_t l;

	msg.sadb_msg_version = PF_KEY_V2;
	msg.sadb_msg_type = SADB_X_PROMISC;
	msg.sadb_msg_errno = 0;
	msg.sadb_msg_satype = 1;
	msg.sadb_msg_len = PFKEY_UNIT64(sizeof(msg));
	msg.sadb_msg_reserved = 0;
	msg.sadb_msg_seq = 0;
	msg.sadb_msg_pid = getpid();

	if ((l = send(so, &msg, sizeof(msg), 0)) < 0) {
	err(1, "send");
	/NOTREACHED/
	}

	while (1) {
	struct sadb_msg *base;

	if ((l = recv(so, rbuf, sizeof(*base), MSG_PEEK)) < 0) {
	err(1, "recv");
	/NOTREACHED/
	}

	if (l != sizeof(*base))
	continue;

	base = (struct sadb_msg *)rbuf;
	if ((l = recv(so, rbuf, PFKEY_UNUNIT64(base->sadb_msg_len),
	0)) < 0) {
	err(1, "recv");
	/NOTREACHED/
	}
	printdate();
	if (f_hexdump) {
	int i;
	for (i = 0; i < l; i++) {
	if (i % 16 == 0)
	printf("%08x: ", i);
	printf("%02x ", rbuf[i] & 0xff);
	if (i % 16 == 15)
	printf("\n");
	}
	if (l % 16)
	printf("\n");
	}
	/* adjust base pointer for promisc mode */
	if (base->sadb_msg_type == SADB_X_PROMISC) {
	if ((ssize_t)sizeof(*base) < l)
	base++;
	else
	base = NULL;
	}
	if (base) {
	kdebug_sadb(base);
	printf("\n");
	fflush(stdout);
	}
	}
	}

	int
	sendkeymsg(buf, len)
	char *buf;
	size_t len;
	{
	u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */
	ssize_t l;
	struct sadb_msg *msg;

	if (f_notreally) {
	goto end;
	}

	{
	struct timeval tv;
	tv.tv_sec = 1;
	tv.tv_usec = 0;
	if (setsockopt(so, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
	perror("setsockopt");
	goto end;
	}
	}

	if (f_forever)
	shortdump_hdr();
	again:
	if (f_verbose) {
	kdebug_sadb((struct sadb_msg *)buf);
	printf("\n");
	}
	if (f_hexdump) {
	int i;
	for (i = 0; i < len; i++) {
	if (i % 16 == 0)
	printf("%08x: ", i);
	printf("%02x ", buf[i] & 0xff);
	if (i % 16 == 15)
	printf("\n");
	}
	if (len % 16)
	printf("\n");
	}

	if ((l = send(so, buf, len, 0)) < 0) {
	perror("send");
	goto end;
	}

	msg = (struct sadb_msg *)rbuf;
	do {
	if ((l = recv(so, rbuf, sizeof(rbuf), 0)) < 0) {
	perror("recv");
	goto end;
	}

	if (PFKEY_UNUNIT64(msg->sadb_msg_len) != l) {
	warnx("invalid keymsg length");
	break;
	}

	if (f_verbose) {
	kdebug_sadb((struct sadb_msg *)rbuf);
	printf("\n");
	}
	if (postproc(msg, l) < 0)
	break;
	} while (msg->sadb_msg_errno \|\| msg->sadb_msg_seq);

	if (f_forever) {
	fflush(stdout);
	sleep(1);
	goto again;
	}

	end:
	return (0);
	}

	int
	postproc(msg, len)
	struct sadb_msg *msg;
	int len;
	{
	#ifdef HAVE_PFKEY_POLICY_PRIORITY
	static int priority_support_check = 0;
	#endif

	if (msg->sadb_msg_errno != 0) {
	char inf[80];
	const char *errmsg = NULL;

	if (f_mode == MODE_SCRIPT)
	snprintf(inf, sizeof(inf), "The result of line %d: ", lineno);
	else
	inf[0] = '\0';

	switch (msg->sadb_msg_errno) {
	case ENOENT:
	switch (msg->sadb_msg_type) {
	case SADB_DELETE:
	case SADB_GET:
	case SADB_X_SPDDELETE:
	errmsg = "No entry";
	break;
	case SADB_DUMP:
	errmsg = "No SAD entries";
	break;
	case SADB_X_SPDDUMP:
	errmsg = "No SPD entries";
	break;
	}
	break;
	default:
	errmsg = strerror(msg->sadb_msg_errno);
	}
	printf("%s%s.\n", inf, errmsg);
	return (-1);
	}

	switch (msg->sadb_msg_type) {
	case SADB_GET:
	if (f_withports)
	pfkey_sadump_withports(msg);
	else
	pfkey_sadump(msg);
	break;

	case SADB_DUMP:
	/* filter out DEAD SAs */
	if (!f_all) {
	caddr_t mhp[SADB_EXT_MAX + 1];
	struct sadb_sa *sa;
	pfkey_align(msg, mhp);
	pfkey_check(mhp);
	if ((sa = (struct sadb_sa *)mhp[SADB_EXT_SA]) != NULL) {
	if (sa->sadb_sa_state == SADB_SASTATE_DEAD)
	break;
	}
	}
	if (f_forever) {
	/* TODO: f_withports */
	shortdump(msg);
	} else {
	if (f_withports)
	pfkey_sadump_withports(msg);
	else
	pfkey_sadump(msg);
	}
	msg = (struct sadb_msg *)((caddr_t)msg +
	PFKEY_UNUNIT64(msg->sadb_msg_len));
	if (f_verbose) {
	kdebug_sadb((struct sadb_msg *)msg);
	printf("\n");
	}
	break;

	case SADB_X_SPDGET:
	if (f_withports)
	pfkey_spdump_withports(msg);
	else
	pfkey_spdump(msg);
	break;

	case SADB_X_SPDDUMP:
	if (f_withports)
	pfkey_spdump_withports(msg);
	else
	pfkey_spdump(msg);
	if (msg->sadb_msg_seq == 0) break;
	msg = (struct sadb_msg *)((caddr_t)msg +
	PFKEY_UNUNIT64(msg->sadb_msg_len));
	if (f_verbose) {
	kdebug_sadb((struct sadb_msg *)msg);
	printf("\n");
	}
	break;
	#ifdef HAVE_PFKEY_POLICY_PRIORITY
	case SADB_X_SPDADD:
	if (last_msg_type == SADB_X_SPDADD && last_priority != 0 &&
	msg->sadb_msg_pid == getpid() && !priority_support_check) {
	priority_support_check = 1;
	if (!verifypriority(msg))
	printf ("WARNING: Kernel does not support policy priorities\n");
	}
	break;
	#endif
	}

	return (0);
	}

	#ifdef HAVE_PFKEY_POLICY_PRIORITY
	int
	verifypriority(m)
	struct sadb_msg *m;
	{
	caddr_t mhp[SADB_EXT_MAX + 1];
	struct sadb_x_policy *xpl;

	/* check pfkey message. */
	if (pfkey_align(m, mhp)) {
	printf("(%s\n", ipsec_strerror());
	return 0;
	}
	if (pfkey_check(mhp)) {
	printf("%s\n", ipsec_strerror());
	return 0;
	}

	xpl = (struct sadb_x_policy *) mhp[SADB_X_EXT_POLICY];

	if (xpl == NULL) {
	printf("no X_POLICY extension.\n");
	return 0;
	}

	/* now make sure they match */
	if (last_priority != xpl->sadb_x_policy_priority)
	return 0;

	return 1;
	}
	#endif

	int
	fileproc(filename)
	const char *filename;
	{
	int fd;
	ssize_t len, l;
	u_char p, ep;
	struct sadb_msg *msg;
	u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */

	fd = open(filename, O_RDONLY);
	if (fd < 0)
	return -1;

	l = 0;
	while (1) {
	len = read(fd, rbuf + l, sizeof(rbuf) - l);
	if (len < 0) {
	close(fd);
	return -1;
	} else if (len == 0)
	break;
	l += len;
	}

	if (l < sizeof(struct sadb_msg)) {
	close(fd);
	errno = EINVAL;
	return -1;
	}
	close(fd);

	p = rbuf;
	ep = rbuf + l;

	while (p < ep) {
	msg = (struct sadb_msg *)p;
	len = PFKEY_UNUNIT64(msg->sadb_msg_len);
	postproc(msg, len);
	p += len;
	}

	return (0);
	}


	/------------------------------------------------------------/
	static const char *satype[] = {
	NULL, NULL, "ah", "esp"
	};
	static const char *sastate[] = {
	"L", "M", "D", "d"
	};
	static const char *ipproto[] = {
	/0/ "ip", "icmp", "igmp", "ggp", "ip4",
	NULL, "tcp", NULL, "egp", NULL,
	/10/ NULL, NULL, NULL, NULL, NULL,
	NULL, NULL, "udp", NULL, NULL,
	/20/ NULL, NULL, "idp", NULL, NULL,
	NULL, NULL, NULL, NULL, "tp",
	/30/ NULL, NULL, NULL, NULL, NULL,
	NULL, NULL, NULL, NULL, NULL,
	/40/ NULL, "ip6", NULL, "rt6", "frag6",
	NULL, "rsvp", "gre", NULL, NULL,
	/50/ "esp", "ah", NULL, NULL, NULL,
	NULL, NULL, NULL, "icmp6", "none",
	/60/ "dst6",
	};

	#define STR_OR_ID(x, tab) \
	(((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)]) ? tab[(x)] : numstr(x))

	const char *
	numstr(x)
	int x;
	{
	static char buf[20];
	snprintf(buf, sizeof(buf), "#%d", x);
	return buf;
	}

	void
	shortdump_hdr()
	{
	printf("%-4s %-3s %-1s %-8s %-7s %s -> %s\n",
	"time", "p", "s", "spi", "ltime", "src", "dst");
	}

	void
	shortdump(msg)
	struct sadb_msg *msg;
	{
	caddr_t mhp[SADB_EXT_MAX + 1];
	char buf[NI_MAXHOST], pbuf[NI_MAXSERV];
	struct sadb_sa *sa;
	struct sadb_address *saddr;
	struct sadb_lifetime lts, lth, *ltc;
	struct sockaddr *s;
	u_int t;
	time_t cur = time(0);

	pfkey_align(msg, mhp);
	pfkey_check(mhp);

	printf("%02lu%02lu", (u_long)(cur % 3600) / 60, (u_long)(cur % 60));

	printf(" %-3s", STR_OR_ID(msg->sadb_msg_satype, satype));

	if ((sa = (struct sadb_sa *)mhp[SADB_EXT_SA]) != NULL) {
	printf(" %-1s", STR_OR_ID(sa->sadb_sa_state, sastate));
	printf(" %08x", (u_int32_t)ntohl(sa->sadb_sa_spi));
	} else
	printf("%-1s %-8s", "?", "?");

	lts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
	lth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
	ltc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
	if (lts && lth && ltc) {
	if (ltc->sadb_lifetime_addtime == 0)
	t = (u_long)0;
	else
	t = (u_long)(cur - ltc->sadb_lifetime_addtime);
	if (t >= 1000)
	strlcpy(buf, " big/", sizeof(buf));
	else
	snprintf(buf, sizeof(buf), " %3lu/", (u_long)t);
	printf("%s", buf);

	t = (u_long)lth->sadb_lifetime_addtime;
	if (t >= 1000)
	strlcpy(buf, "big", sizeof(buf));
	else
	snprintf(buf, sizeof(buf), "%-3lu", (u_long)t);
	printf("%s", buf);
	} else
	printf(" ??\?/???"); /* backslash to avoid trigraph ??/ */

	printf(" ");

	if ((saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]) != NULL) {
	if (saddr->sadb_address_proto)
	printf("%s ", STR_OR_ID(saddr->sadb_address_proto, ipproto));
	s = (struct sockaddr *)(saddr + 1);
	getnameinfo(s, sysdep_sa_len(s), buf, sizeof(buf),
	pbuf, sizeof(pbuf), NI_NUMERICHOST\|NI_NUMERICSERV);
	if (strcmp(pbuf, "0") != 0)
	printf("%s[%s]", buf, pbuf);
	else
	printf("%s", buf);
	} else
	printf("?");

	printf(" -> ");

	if ((saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]) != NULL) {
	if (saddr->sadb_address_proto)
	printf("%s ", STR_OR_ID(saddr->sadb_address_proto, ipproto));

	s = (struct sockaddr *)(saddr + 1);
	getnameinfo(s, sysdep_sa_len(s), buf, sizeof(buf),
	pbuf, sizeof(pbuf), NI_NUMERICHOST\|NI_NUMERICSERV);
	if (strcmp(pbuf, "0") != 0)
	printf("%s[%s]", buf, pbuf);
	else
	printf("%s", buf);
	} else
	printf("?");

	printf("\n");
	}

	/* From: tcpdump(1):gmt2local.c and util.c */
	/*
	* Print the timestamp
	*/
	static void
	printdate()
	{
	struct timeval tp;
	int s;

	if (gettimeofday(&tp, NULL) == -1) {
	perror("gettimeofday");
	return;
	}

	if (f_tflag == 1) {
	/* Default */
	s = (tp.tv_sec + thiszone ) % 86400;
	(void)printf("%02d:%02d:%02d.%06u ",
	s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tp.tv_usec);
	} else if (f_tflag > 1) {
	/* Unix timeval style */
	(void)printf("%u.%06u ",
	(u_int32_t)tp.tv_sec, (u_int32_t)tp.tv_usec);
	}

	printf("\n");
	}

	/*
	* Returns the difference between gmt and local time in seconds.
	* Use gmtime() and localtime() to keep things simple.
	*/
	int32_t
	gmt2local(time_t t)
	{
	register int dt, dir;
	register struct tm gmt, loc;
	struct tm sgmt;

	if (t == 0)
	t = time(NULL);
	gmt = &sgmt;
	gmt = gmtime(&t);
	loc = localtime(&t);
	dt = (loc->tm_hour - gmt->tm_hour) * 60 * 60 +
	(loc->tm_min - gmt->tm_min) * 60;

	/*
	* If the year or julian day is different, we span 00:00 GMT
	* and must add or subtract a day. Check the year first to
	* avoid problems when the julian day wraps.
	*/
	dir = loc->tm_year - gmt->tm_year;
	if (dir == 0)
	dir = loc->tm_yday - gmt->tm_yday;
	dt += dir * 24 * 60 * 60;

	return (dt);
	}