2 /* $KAME: setkey.c,v 1.28 2003/06/27 07:15:45 itojun Exp $ */
5 * SPDX-License-Identifier: BSD-3-Clause
7 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the project nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/types.h>
36 #include <sys/param.h>
37 #include <sys/linker.h>
38 #include <sys/module.h>
39 #include <sys/socket.h>
42 #include <net/route.h>
43 #include <netinet/in.h>
44 #include <net/pfkeyv2.h>
45 #include <netipsec/keydb.h>
46 #include <netipsec/key_debug.h>
47 #include <netipsec/ipsec.h>
61 int main(int, char **);
62 int get_supported(void);
63 void sendkeyshort(u_int, uint8_t);
65 int sendkeymsg(char *, size_t);
66 int postproc(struct sadb_msg *);
67 const char *numstr(int);
68 void shortdump_hdr(void);
69 void shortdump(struct sadb_msg *);
70 static void printdate(void);
71 static int32_t gmt2local(time_t);
72 static int modload(const char *name);
75 #define MODE_CMDDUMP 2
76 #define MODE_CMDFLUSH 3
77 #define MODE_PROMISC 4
81 static int f_forever = 0;
83 static int f_verbose = 0;
84 static int f_mode = 0;
85 static int f_cmddump = 0;
86 static int f_policy = 0;
87 static int f_hexdump = 0;
88 static int f_tflag = 0;
89 static int f_scope = 0;
90 static time_t thiszone;
94 extern int parse(FILE **);
100 printf("usage: setkey [-v] -c\n");
101 printf(" setkey [-v] -f filename\n");
102 printf(" setkey [-v] -e \"<script>\"\n");
103 printf(" setkey [-Pagltv] -D\n");
104 printf(" setkey [-Pv] -F\n");
105 printf(" setkey [-h] -x\n");
110 modload(const char *name)
112 if (modfind(name) < 0)
113 if (kldload(name) < 0 || modfind(name) < 0) {
114 warn("%s: module not found", name);
121 main(int ac, char **av)
131 thiszone = gmt2local(0);
133 while ((c = getopt(ac, av, "acde:f:ghltvxDFP")) != -1) {
136 f_mode = MODE_SCRIPT;
141 err(-1, "only one -f/-e option is accepted");
143 f_mode = MODE_SCRIPT;
144 fp = fmemopen(optarg, strlen(optarg), "r");
152 err(-1, "only one -f/-e option is accepted");
154 f_mode = MODE_SCRIPT;
155 if ((fp = fopen(optarg, "r")) == NULL) {
161 f_mode = MODE_CMDDUMP;
164 f_mode = MODE_CMDFLUSH;
176 f_mode = MODE_PROMISC;
182 case 'g': /* global */
183 f_scope |= IPSEC_POLICYSCOPE_GLOBAL;
185 case 't': /* tunnel */
186 f_scope |= IPSEC_POLICYSCOPE_IFNET;
200 perror("pfkey_open");
206 sendkeyshort(f_policy ? SADB_X_SPDDUMP: SADB_DUMP,
207 f_policy ? f_scope: SADB_SATYPE_UNSPEC);
210 sendkeyshort(f_policy ? SADB_X_SPDFLUSH: SADB_FLUSH,
214 if (get_supported() < 0) {
215 errx(-1, "%s", ipsec_strerror());
236 if (pfkey_send_register(so, SADB_SATYPE_UNSPEC) < 0)
239 if (pfkey_recv_register(so) < 0)
246 sendkeyshort(u_int type, uint8_t satype)
250 msg.sadb_msg_version = PF_KEY_V2;
251 msg.sadb_msg_type = type;
252 msg.sadb_msg_errno = 0;
253 msg.sadb_msg_satype = satype;
254 msg.sadb_msg_len = PFKEY_UNIT64(sizeof(msg));
255 msg.sadb_msg_reserved = 0;
256 msg.sadb_msg_seq = 0;
257 msg.sadb_msg_pid = getpid();
259 sendkeymsg((char *)&msg, sizeof(msg));
268 u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */
271 msg.sadb_msg_version = PF_KEY_V2;
272 msg.sadb_msg_type = SADB_X_PROMISC;
273 msg.sadb_msg_errno = 0;
274 msg.sadb_msg_satype = 1;
275 msg.sadb_msg_len = PFKEY_UNIT64(sizeof(msg));
276 msg.sadb_msg_reserved = 0;
277 msg.sadb_msg_seq = 0;
278 msg.sadb_msg_pid = getpid();
280 if ((l = send(so, &msg, sizeof(msg), 0)) < 0) {
286 struct sadb_msg *base;
288 if ((l = recv(so, rbuf, sizeof(*base), MSG_PEEK)) < 0) {
293 if (l != sizeof(*base))
296 base = (struct sadb_msg *)rbuf;
297 if ((l = recv(so, rbuf, PFKEY_UNUNIT64(base->sadb_msg_len),
305 for (i = 0; i < l; i++) {
308 printf("%02x ", rbuf[i] & 0xff);
315 /* adjust base pointer for promisc mode */
316 if (base->sadb_msg_type == SADB_X_PROMISC) {
317 if ((ssize_t)sizeof(*base) < l)
331 sendkeymsg(char *buf, size_t len)
333 u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */
335 struct sadb_msg *msg;
341 if (setsockopt(so, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
342 perror("setsockopt");
351 kdebug_sadb((struct sadb_msg *)buf);
356 for (i = 0; i < len; i++) {
358 printf("%08x: ", (u_int)i);
359 printf("%02x ", buf[i] & 0xff);
367 if ((l = send(so, buf, len, 0)) < 0) {
372 msg = (struct sadb_msg *)rbuf;
374 if ((l = recv(so, rbuf, sizeof(rbuf), 0)) < 0) {
379 if (PFKEY_UNUNIT64(msg->sadb_msg_len) != l) {
380 warnx("invalid keymsg length");
385 kdebug_sadb((struct sadb_msg *)rbuf);
388 if (postproc(msg) < 0)
390 } while (msg->sadb_msg_errno || msg->sadb_msg_seq);
403 postproc(struct sadb_msg *msg)
406 if (msg->sadb_msg_errno != 0) {
408 const char *errmsg = NULL;
410 if (f_mode == MODE_SCRIPT)
411 snprintf(inf, sizeof(inf), "The result of line %d: ", lineno);
415 switch (msg->sadb_msg_errno) {
417 switch (msg->sadb_msg_type) {
420 case SADB_X_SPDDELETE:
424 errmsg = "No SAD entries";
427 errmsg = "No SPD entries";
432 errmsg = strerror(msg->sadb_msg_errno);
434 printf("%s%s.\n", inf, errmsg);
438 switch (msg->sadb_msg_type) {
444 /* filter out DEAD SAs */
446 caddr_t mhp[SADB_EXT_MAX + 1];
448 pfkey_align(msg, mhp);
450 if ((sa = (struct sadb_sa *)mhp[SADB_EXT_SA]) != NULL) {
451 if (sa->sadb_sa_state == SADB_SASTATE_DEAD)
459 msg = (struct sadb_msg *)((caddr_t)msg +
460 PFKEY_UNUNIT64(msg->sadb_msg_len));
462 kdebug_sadb((struct sadb_msg *)msg);
469 if (msg->sadb_msg_seq == 0) break;
470 msg = (struct sadb_msg *)((caddr_t)msg +
471 PFKEY_UNUNIT64(msg->sadb_msg_len));
473 kdebug_sadb((struct sadb_msg *)msg);
482 /*------------------------------------------------------------*/
483 static const char *satype[] = {
484 NULL, NULL, "ah", "esp"
486 static const char *sastate[] = {
489 static const char *ipproto[] = {
490 /*0*/ "ip", "icmp", "igmp", "ggp", "ip4",
491 NULL, "tcp", NULL, "egp", NULL,
492 /*10*/ NULL, NULL, NULL, NULL, NULL,
493 NULL, NULL, "udp", NULL, NULL,
494 /*20*/ NULL, NULL, "idp", NULL, NULL,
495 NULL, NULL, NULL, NULL, "tp",
496 /*30*/ NULL, NULL, NULL, NULL, NULL,
497 NULL, NULL, NULL, NULL, NULL,
498 /*40*/ NULL, "ip6", NULL, "rt6", "frag6",
499 NULL, "rsvp", "gre", NULL, NULL,
500 /*50*/ "esp", "ah", NULL, NULL, NULL,
501 NULL, NULL, NULL, "icmp6", "none",
505 #define STR_OR_ID(x, tab) \
506 (((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)]) ? tab[(x)] : numstr(x))
512 snprintf(buf, sizeof(buf), "#%d", x);
519 printf("%-4s %-3s %-1s %-8s %-7s %s -> %s\n",
520 "time", "p", "s", "spi", "ltime", "src", "dst");
524 shortdump(struct sadb_msg *msg)
526 caddr_t mhp[SADB_EXT_MAX + 1];
527 char buf[NI_MAXHOST], pbuf[NI_MAXSERV];
529 struct sadb_address *saddr;
530 struct sadb_lifetime *lts, *lth, *ltc;
533 time_t cur = time(0);
535 pfkey_align(msg, mhp);
538 printf("%02lu%02lu", (u_long)(cur % 3600) / 60, (u_long)(cur % 60));
540 printf(" %-3s", STR_OR_ID(msg->sadb_msg_satype, satype));
542 if ((sa = (struct sadb_sa *)mhp[SADB_EXT_SA]) != NULL) {
543 printf(" %-1s", STR_OR_ID(sa->sadb_sa_state, sastate));
544 printf(" %08x", (u_int32_t)ntohl(sa->sadb_sa_spi));
546 printf("%-1s %-8s", "?", "?");
548 lts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
549 lth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
550 ltc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
551 if (lts && lth && ltc) {
552 if (ltc->sadb_lifetime_addtime == 0)
555 t = (u_long)(cur - ltc->sadb_lifetime_addtime);
557 strlcpy(buf, " big/", sizeof(buf));
559 snprintf(buf, sizeof(buf), " %3lu/", (u_long)t);
562 t = (u_long)lth->sadb_lifetime_addtime;
564 strlcpy(buf, "big", sizeof(buf));
566 snprintf(buf, sizeof(buf), "%-3lu", (u_long)t);
569 printf(" ??\?/???"); /* backslash to avoid trigraph ??/ */
573 if ((saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC]) != NULL) {
574 if (saddr->sadb_address_proto)
575 printf("%s ", STR_OR_ID(saddr->sadb_address_proto, ipproto));
576 s = (struct sockaddr *)(saddr + 1);
577 getnameinfo(s, s->sa_len, buf, sizeof(buf),
578 pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV);
579 if (strcmp(pbuf, "0") != 0)
580 printf("%s[%s]", buf, pbuf);
588 if ((saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST]) != NULL) {
589 if (saddr->sadb_address_proto)
590 printf("%s ", STR_OR_ID(saddr->sadb_address_proto, ipproto));
592 s = (struct sockaddr *)(saddr + 1);
593 getnameinfo(s, s->sa_len, buf, sizeof(buf),
594 pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV);
595 if (strcmp(pbuf, "0") != 0)
596 printf("%s[%s]", buf, pbuf);
605 /* From: tcpdump(1):gmt2local.c and util.c */
607 * Print the timestamp
615 if (gettimeofday(&tp, NULL) == -1) {
616 perror("gettimeofday");
622 s = (tp.tv_sec + thiszone ) % 86400;
623 (void)printf("%02d:%02d:%02d.%06u ",
624 s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tp.tv_usec);
625 } else if (f_tflag > 1) {
626 /* Unix timeval style */
627 (void)printf("%u.%06u ",
628 (u_int32_t)tp.tv_sec, (u_int32_t)tp.tv_usec);
635 * Returns the difference between gmt and local time in seconds.
636 * Use gmtime() and localtime() to keep things simple.
641 register int dt, dir;
642 register struct tm *gmt, *loc;
650 dt = (loc->tm_hour - gmt->tm_hour) * 60 * 60 +
651 (loc->tm_min - gmt->tm_min) * 60;
654 * If the year or julian day is different, we span 00:00 GMT
655 * and must add or subtract a day. Check the year first to
656 * avoid problems when the julian day wraps.
658 dir = loc->tm_year - gmt->tm_year;
660 dir = loc->tm_yday - gmt->tm_yday;
661 dt += dir * 24 * 60 * 60;