1 /* $KAME: ping6.c,v 1.169 2003/07/25 06:01:47 itojun Exp $ */
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
32 /* BSDI ping.c,v 2.3 1996/01/21 17:56:50 jch Exp */
35 * Copyright (c) 1989, 1993
36 * The Regents of the University of California. All rights reserved.
38 * This code is derived from software contributed to Berkeley by
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. All advertising materials mentioning features or use of this software
50 * must display the following acknowledgement:
51 * This product includes software developed by the University of
52 * California, Berkeley and its contributors.
53 * 4. Neither the name of the University nor the names of its contributors
54 * may be used to endorse or promote products derived from this software
55 * without specific prior written permission.
57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71 static const char copyright[] =
72 "@(#) Copyright (c) 1989, 1993\n\
73 The Regents of the University of California. All rights reserved.\n";
78 static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
80 static const char rcsid[] =
85 * Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
86 * measure round-trip-delays and packet loss across network paths.
90 * U. S. Army Ballistic Research Laboratory
94 * Public Domain. Distribution Unlimited.
96 * More statistics could always be gathered.
97 * This program has to run SUID to ROOT to access the ICMP socket.
101 * USE_SIN6_SCOPE_ID assumes that sin6_scope_id has the same semantics
102 * as IPV6_PKTINFO. Some people object it (sin6_scope_id specifies *link*
103 * while IPV6_PKTINFO specifies *interface*. Link is defined as collection of
104 * network attached to 1 or more interfaces)
107 #include <sys/param.h>
109 #include <sys/socket.h>
110 #include <sys/time.h>
113 #include <net/route.h>
115 #include <netinet/in.h>
116 #include <netinet/ip6.h>
117 #include <netinet/icmp6.h>
118 #include <arpa/inet.h>
119 #include <arpa/nameser.h>
137 #include <netipsec/ah.h>
138 #include <netipsec/ipsec.h>
148 #define MAXPACKETLEN 131072
150 #define ICMP6ECHOLEN 8 /* icmp echo header len excluding time */
151 #define ICMP6ECHOTMLEN sizeof(struct tv32)
152 #define ICMP6_NIQLEN (ICMP6ECHOLEN + 8)
153 # define CONTROLLEN 10240 /* ancillary data buffer size RFC3542 20.1 */
154 /* FQDN case, 64 bits of nonce + 32 bits ttl */
155 #define ICMP6_NIRLEN (ICMP6ECHOLEN + 12)
156 #define EXTRA 256 /* for AH and various other headers. weird. */
157 #define DEFDATALEN ICMP6ECHOTMLEN
158 #define MAXDATALEN MAXPACKETLEN - IP6LEN - ICMP6ECHOLEN
159 #define NROUTES 9 /* number of record route slots */
161 #define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
162 #define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
163 #define SET(bit) (A(bit) |= B(bit))
164 #define CLR(bit) (A(bit) &= (~B(bit)))
165 #define TST(bit) (A(bit) & B(bit))
167 #define F_FLOOD 0x0001
168 #define F_INTERVAL 0x0002
169 #define F_PINGFILLED 0x0008
170 #define F_QUIET 0x0010
171 #define F_RROUTE 0x0020
172 #define F_SO_DEBUG 0x0040
173 #define F_VERBOSE 0x0100
175 #ifdef IPSEC_POLICY_IPSEC
176 #define F_POLICY 0x0400
178 #define F_AUTHHDR 0x0200
179 #define F_ENCRYPT 0x0400
180 #endif /*IPSEC_POLICY_IPSEC*/
182 #define F_NODEADDR 0x0800
183 #define F_FQDN 0x1000
184 #define F_INTERFACE 0x2000
185 #define F_SRCADDR 0x4000
186 #define F_HOSTNAME 0x10000
187 #define F_FQDNOLD 0x20000
188 #define F_NIGROUP 0x40000
189 #define F_SUPTYPES 0x80000
190 #define F_NOMINMTU 0x100000
191 #define F_ONCE 0x200000
192 #define F_AUDIBLE 0x400000
193 #define F_MISSED 0x800000
194 #define F_DONTFRAG 0x1000000
195 #define F_NOUSERDATA (F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES)
198 #define IN6LEN sizeof(struct in6_addr)
199 #define SA6LEN sizeof(struct sockaddr_in6)
200 #define DUMMY_PORT 10101
202 #define SIN6(s) ((struct sockaddr_in6 *)(s))
205 * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
206 * number of received sequence numbers we can keep track of. Change 128
207 * to 8192 for complete accuracy...
209 #define MAX_DUP_CHK (8 * 8192)
210 int mx_dup_ck = MAX_DUP_CHK;
211 char rcvd_tbl[MAX_DUP_CHK / 8];
213 struct addrinfo *res;
214 struct sockaddr_in6 dst; /* who to ping6 */
215 struct sockaddr_in6 src; /* src addr of this packet */
217 int datalen = DEFDATALEN;
218 int s; /* socket file descriptor */
219 u_char outpack[MAXPACKETLEN];
220 char BSPACE = '\b'; /* characters written for flood */
221 char BBELL = '\a'; /* characters written for AUDIBLE */
224 int ident; /* process id to identify our packets */
225 u_int8_t nonce[8]; /* nonce field for node information */
226 int hoplimit = -1; /* hoplimit */
227 int pathmtu = 0; /* path MTU for the destination. 0 = unspec. */
230 long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
231 long npackets; /* max packets to transmit */
232 long nreceived; /* # of packets we got back */
233 long nrepeats; /* number of duplicates */
234 long ntransmitted; /* sequence # for outbound packets = #sent */
235 struct timeval interval = {1, 0}; /* interval between packets */
238 int timing; /* flag to do timing */
239 double tmin = 999999999.0; /* minimum round trip time */
240 double tmax = 0.0; /* maximum round trip time */
241 double tsum = 0.0; /* sum of all times, for doing average */
242 double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
244 /* for node addresses */
247 /* for ancillary data(advanced API) */
248 struct msghdr smsghdr;
249 struct iovec smsgiov;
252 volatile sig_atomic_t seenalrm;
253 volatile sig_atomic_t seenint;
255 volatile sig_atomic_t seeninfo;
258 int main(int, char *[]);
259 void fill(char *, char *);
260 int get_hoplim(struct msghdr *);
261 int get_pathmtu(struct msghdr *);
262 struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
264 void retransmit(void);
266 size_t pingerlen(void);
268 const char *pr_addr(struct sockaddr *, int);
269 void pr_icmph(struct icmp6_hdr *, u_char *);
270 void pr_iph(struct ip6_hdr *);
271 void pr_suptypes(struct icmp6_nodeinfo *, size_t);
272 void pr_nodeaddr(struct icmp6_nodeinfo *, int);
273 int myechoreply(const struct icmp6_hdr *);
274 int mynireply(const struct icmp6_nodeinfo *);
275 char *dnsdecode(const u_char **, const u_char *, const u_char *,
277 void pr_pack(u_char *, int, struct msghdr *);
278 void pr_exthdrs(struct msghdr *);
279 void pr_ip6opt(void *, size_t);
280 void pr_rthdr(void *, size_t);
281 int pr_bitrange(u_int32_t, int, int);
282 void pr_retip(struct ip6_hdr *, u_char *);
284 void tvsub(struct timeval *, struct timeval *);
285 int setpolicy(int, char *);
286 char *nigroup(char *);
294 struct itimerval itimer;
295 struct sockaddr_in6 from;
296 #ifndef HAVE_ARC4RANDOM
302 struct timeval timeout, *tv;
304 struct addrinfo hints;
306 struct pollfd fdmaskp[1];
312 int ch, hold, packlen, preload, optval, ret_ga;
313 u_char *datap, *packet;
314 char *e, *target, *ifname = NULL, *gateway = NULL;
316 struct cmsghdr *scmsgp = NULL;
318 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
323 struct in6_pktinfo *pktinfo = NULL;
324 #ifdef USE_RFC2292BIS
325 struct ip6_rthdr *rthdr = NULL;
327 #ifdef IPSEC_POLICY_IPSEC
328 char *policy_in = NULL;
329 char *policy_out = NULL;
333 #ifdef IPV6_USE_MIN_MTU
337 /* just to be sure */
338 memset(&smsghdr, 0, sizeof(smsghdr));
339 memset(&smsgiov, 0, sizeof(smsgiov));
342 datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
346 #ifdef IPSEC_POLICY_IPSEC
350 #endif /*IPSEC_POLICY_IPSEC*/
352 while ((ch = getopt(argc, argv,
353 "a:b:c:DdfHg:h:I:i:l:mnNop:qrRS:s:tvwW" ADDOPTS)) != -1) {
360 options &= ~F_NOUSERDATA;
361 options |= F_NODEADDR;
362 for (cp = optarg; *cp != '\0'; cp++) {
365 naflags |= NI_NODEADDR_FLAG_ALL;
369 naflags |= NI_NODEADDR_FLAG_COMPAT;
373 naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
377 naflags |= NI_NODEADDR_FLAG_SITELOCAL;
381 naflags |= NI_NODEADDR_FLAG_GLOBAL;
383 case 'A': /* experimental. not in the spec */
384 #ifdef NI_NODEADDR_FLAG_ANYCAST
385 naflags |= NI_NODEADDR_FLAG_ANYCAST;
389 "-a A is not supported on the platform");
400 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
403 lsockbufsize = strtoul(optarg, &e, 10);
404 sockbufsize = lsockbufsize;
405 if (errno || !*optarg || *e ||
406 sockbufsize != lsockbufsize)
407 errx(1, "invalid socket buffer size");
410 "-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
414 npackets = strtol(optarg, &e, 10);
415 if (npackets <= 0 || *optarg == '\0' || *e != '\0')
417 "illegal number of packets -- %s", optarg);
420 options |= F_DONTFRAG;
423 options |= F_SO_DEBUG;
428 errx(1, "Must be superuser to flood ping");
431 setbuf(stdout, (char *)NULL);
437 options |= F_HOSTNAME;
439 case 'h': /* hoplimit */
440 hoplimit = strtol(optarg, &e, 10);
441 if (*optarg == '\0' || *e != '\0')
442 errx(1, "illegal hoplimit %s", optarg);
443 if (255 < hoplimit || hoplimit < -1)
445 "illegal hoplimit -- %s", optarg);
449 options |= F_INTERFACE;
450 #ifndef USE_SIN6_SCOPE_ID
454 case 'i': /* wait between sending packets */
455 intval = strtod(optarg, &e);
456 if (*optarg == '\0' || *e != '\0')
457 errx(1, "illegal timing interval %s", optarg);
458 if (intval < 1 && getuid()) {
459 errx(1, "%s: only root may use interval < 1s",
462 interval.tv_sec = (long)intval;
464 (long)((intval - interval.tv_sec) * 1000000);
465 if (interval.tv_sec < 0)
466 errx(1, "illegal timing interval %s", optarg);
467 /* less than 1/hz does not make sense */
468 if (interval.tv_sec == 0 && interval.tv_usec < 1) {
469 warnx("too small interval, raised to .000001");
470 interval.tv_usec = 1;
472 options |= F_INTERVAL;
477 errx(1, "Must be superuser to preload");
479 preload = strtol(optarg, &e, 10);
480 if (preload < 0 || *optarg == '\0' || *e != '\0')
481 errx(1, "illegal preload value -- %s", optarg);
484 #ifdef IPV6_USE_MIN_MTU
488 errx(1, "-%c is not supported on this platform", ch);
492 options &= ~F_HOSTNAME;
495 options |= F_NIGROUP;
500 case 'p': /* fill buffer with user pattern */
501 options |= F_PINGFILLED;
502 fill((char *)datap, optarg);
508 options |= F_AUDIBLE;
514 memset(&hints, 0, sizeof(struct addrinfo));
515 hints.ai_flags = AI_NUMERICHOST; /* allow hostname? */
516 hints.ai_family = AF_INET6;
517 hints.ai_socktype = SOCK_RAW;
518 hints.ai_protocol = IPPROTO_ICMPV6;
520 ret_ga = getaddrinfo(optarg, NULL, &hints, &res);
522 errx(1, "invalid source address: %s",
523 gai_strerror(ret_ga));
526 * res->ai_family must be AF_INET6 and res->ai_addrlen
527 * must be sizeof(src).
529 memcpy(&src, res->ai_addr, res->ai_addrlen);
530 srclen = res->ai_addrlen;
532 options |= F_SRCADDR;
534 case 's': /* size of packet to send */
535 datalen = strtol(optarg, &e, 10);
536 if (datalen <= 0 || *optarg == '\0' || *e != '\0')
537 errx(1, "illegal datalen value -- %s", optarg);
538 if (datalen > MAXDATALEN) {
540 "datalen value too large, maximum is %d",
545 options &= ~F_NOUSERDATA;
546 options |= F_SUPTYPES;
549 options |= F_VERBOSE;
552 options &= ~F_NOUSERDATA;
556 options &= ~F_NOUSERDATA;
557 options |= F_FQDNOLD;
560 #ifdef IPSEC_POLICY_IPSEC
563 if (!strncmp("in", optarg, 2)) {
564 if ((policy_in = strdup(optarg)) == NULL)
566 } else if (!strncmp("out", optarg, 3)) {
567 if ((policy_out = strdup(optarg)) == NULL)
570 errx(1, "invalid security policy");
574 options |= F_AUTHHDR;
577 options |= F_ENCRYPT;
579 #endif /*IPSEC_POLICY_IPSEC*/
596 #ifdef IPV6_RECVRTHDR /* 2292bis */
597 rthlen = CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0,
600 rthlen = inet6_rthdr_space(IPV6_RTHDR_TYPE_0, argc - 1);
603 errx(1, "too many intermediate hops");
609 if (options & F_NIGROUP) {
610 target = nigroup(argv[argc - 1]);
611 if (target == NULL) {
616 target = argv[argc - 1];
619 memset(&hints, 0, sizeof(struct addrinfo));
620 hints.ai_flags = AI_CANONNAME;
621 hints.ai_family = AF_INET6;
622 hints.ai_socktype = SOCK_RAW;
623 hints.ai_protocol = IPPROTO_ICMPV6;
625 ret_ga = getaddrinfo(target, NULL, &hints, &res);
627 errx(1, "%s", gai_strerror(ret_ga));
628 if (res->ai_canonname)
629 hostname = res->ai_canonname;
634 errx(1, "getaddrinfo failed");
636 (void)memcpy(&dst, res->ai_addr, res->ai_addrlen);
638 if ((s = socket(res->ai_family, res->ai_socktype,
639 res->ai_protocol)) < 0)
642 /* set the source address if specified. */
643 if ((options & F_SRCADDR) &&
644 bind(s, (struct sockaddr *)&src, srclen) != 0) {
648 /* set the gateway (next hop) if specified */
650 struct addrinfo ghints, *gres;
653 memset(&ghints, 0, sizeof(ghints));
654 ghints.ai_family = AF_INET6;
655 ghints.ai_socktype = SOCK_RAW;
656 ghints.ai_protocol = IPPROTO_ICMPV6;
658 error = getaddrinfo(gateway, NULL, &hints, &gres);
660 errx(1, "getaddrinfo for the gateway %s: %s",
661 gateway, gai_strerror(error));
663 if (gres->ai_next && (options & F_VERBOSE))
664 warnx("gateway resolves to multiple addresses");
666 if (setsockopt(s, IPPROTO_IPV6, IPV6_NEXTHOP,
667 gres->ai_addr, gres->ai_addrlen)) {
668 err(1, "setsockopt(IPV6_NEXTHOP)");
675 * let the kerel pass extension headers of incoming packets,
676 * for privileged socket options
678 if ((options & F_VERBOSE) != 0) {
681 #ifdef IPV6_RECVHOPOPTS
682 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
684 err(1, "setsockopt(IPV6_RECVHOPOPTS)");
685 #else /* old adv. API */
686 if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPOPTS, &opton,
688 err(1, "setsockopt(IPV6_HOPOPTS)");
690 #ifdef IPV6_RECVDSTOPTS
691 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
693 err(1, "setsockopt(IPV6_RECVDSTOPTS)");
694 #else /* old adv. API */
695 if (setsockopt(s, IPPROTO_IPV6, IPV6_DSTOPTS, &opton,
697 err(1, "setsockopt(IPV6_DSTOPTS)");
699 #ifdef IPV6_RECVRTHDRDSTOPTS
700 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton,
702 err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)");
706 /* revoke root privilege */
710 if ((options & F_FLOOD) && (options & F_INTERVAL))
711 errx(1, "-f and -i incompatible options");
713 if ((options & F_NOUSERDATA) == 0) {
714 if (datalen >= sizeof(struct tv32)) {
715 /* we can time transfer */
719 /* in F_VERBOSE case, we may get non-echoreply packets*/
720 if (options & F_VERBOSE)
721 packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
723 packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
725 /* suppress timing for node information query */
728 packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
731 if (!(packet = (u_char *)malloc((u_int)packlen)))
732 err(1, "Unable to allocate packet");
733 if (!(options & F_PINGFILLED))
734 for (i = ICMP6ECHOLEN; i < packlen; ++i)
737 ident = getpid() & 0xFFFF;
738 #ifndef HAVE_ARC4RANDOM
739 gettimeofday(&seed, NULL);
740 srand((unsigned int)(seed.tv_sec ^ seed.tv_usec ^ (long)ident));
741 memset(nonce, 0, sizeof(nonce));
742 for (i = 0; i < sizeof(nonce); i += sizeof(int))
743 *((int *)&nonce[i]) = rand();
745 memset(nonce, 0, sizeof(nonce));
746 for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t))
747 *((u_int32_t *)&nonce[i]) = arc4random();
750 if (options & F_DONTFRAG)
751 if (setsockopt(s, IPPROTO_IPV6, IPV6_DONTFRAG,
752 &optval, sizeof(optval)) == -1)
753 err(1, "IPV6_DONTFRAG");
756 if (options & F_SO_DEBUG)
757 (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
759 optval = IPV6_DEFHLIM;
760 if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
761 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
762 &optval, sizeof(optval)) == -1)
763 err(1, "IPV6_MULTICAST_HOPS");
764 #ifdef IPV6_USE_MIN_MTU
766 optval = mflag > 1 ? 0 : 1;
768 if (setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
769 &optval, sizeof(optval)) == -1)
770 err(1, "setsockopt(IPV6_USE_MIN_MTU)");
772 #ifdef IPV6_RECVPATHMTU
775 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPATHMTU,
776 &optval, sizeof(optval)) == -1)
777 err(1, "setsockopt(IPV6_RECVPATHMTU)");
779 #endif /* IPV6_RECVPATHMTU */
780 #endif /* IPV6_USE_MIN_MTU */
783 #ifdef IPSEC_POLICY_IPSEC
784 if (options & F_POLICY) {
785 if (setpolicy(s, policy_in) < 0)
786 errx(1, "%s", ipsec_strerror());
787 if (setpolicy(s, policy_out) < 0)
788 errx(1, "%s", ipsec_strerror());
791 if (options & F_AUTHHDR) {
792 optval = IPSEC_LEVEL_REQUIRE;
793 #ifdef IPV6_AUTH_TRANS_LEVEL
794 if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
795 &optval, sizeof(optval)) == -1)
796 err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
798 if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
799 &optval, sizeof(optval)) == -1)
800 err(1, "setsockopt(IPV6_AUTH_LEVEL)");
803 if (options & F_ENCRYPT) {
804 optval = IPSEC_LEVEL_REQUIRE;
805 if (setsockopt(s, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
806 &optval, sizeof(optval)) == -1)
807 err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
809 #endif /*IPSEC_POLICY_IPSEC*/
814 struct icmp6_filter filt;
815 if (!(options & F_VERBOSE)) {
816 ICMP6_FILTER_SETBLOCKALL(&filt);
817 if ((options & F_FQDN) || (options & F_FQDNOLD) ||
818 (options & F_NODEADDR) || (options & F_SUPTYPES))
819 ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
821 ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
823 ICMP6_FILTER_SETPASSALL(&filt);
825 if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
827 err(1, "setsockopt(ICMP6_FILTER)");
829 #endif /*ICMP6_FILTER*/
831 /* let the kerel pass extension headers of incoming packets */
832 if ((options & F_VERBOSE) != 0) {
835 #ifdef IPV6_RECVRTHDR
836 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
838 err(1, "setsockopt(IPV6_RECVRTHDR)");
839 #else /* old adv. API */
840 if (setsockopt(s, IPPROTO_IPV6, IPV6_RTHDR, &opton,
842 err(1, "setsockopt(IPV6_RTHDR)");
848 if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
849 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
850 &optval, sizeof(optval)) == -1)
851 err(1, "IPV6_MULTICAST_LOOP");
854 /* Specify the outgoing interface and/or the source address */
856 ip6optlen += CMSG_SPACE(sizeof(struct in6_pktinfo));
859 ip6optlen += CMSG_SPACE(sizeof(int));
861 /* set IP6 packet options */
863 if ((scmsg = (char *)malloc(ip6optlen)) == 0)
864 errx(1, "can't allocate enough memory");
865 smsghdr.msg_control = (caddr_t)scmsg;
866 smsghdr.msg_controllen = ip6optlen;
867 scmsgp = (struct cmsghdr *)scmsg;
870 pktinfo = (struct in6_pktinfo *)(CMSG_DATA(scmsgp));
871 memset(pktinfo, 0, sizeof(*pktinfo));
872 scmsgp->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
873 scmsgp->cmsg_level = IPPROTO_IPV6;
874 scmsgp->cmsg_type = IPV6_PKTINFO;
875 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
878 /* set the outgoing interface */
880 #ifndef USE_SIN6_SCOPE_ID
881 /* pktinfo must have already been allocated */
882 if ((pktinfo->ipi6_ifindex = if_nametoindex(ifname)) == 0)
883 errx(1, "%s: invalid interface name", ifname);
885 if ((dst.sin6_scope_id = if_nametoindex(ifname)) == 0)
886 errx(1, "%s: invalid interface name", ifname);
889 if (hoplimit != -1) {
890 scmsgp->cmsg_len = CMSG_LEN(sizeof(int));
891 scmsgp->cmsg_level = IPPROTO_IPV6;
892 scmsgp->cmsg_type = IPV6_HOPLIMIT;
893 *(int *)(CMSG_DATA(scmsgp)) = hoplimit;
895 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
898 if (argc > 1) { /* some intermediate addrs are specified */
900 #ifdef USE_RFC2292BIS
904 #ifdef USE_RFC2292BIS
905 rthdrlen = inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1);
906 scmsgp->cmsg_len = CMSG_LEN(rthdrlen);
907 scmsgp->cmsg_level = IPPROTO_IPV6;
908 scmsgp->cmsg_type = IPV6_RTHDR;
909 rthdr = (struct ip6_rthdr *)CMSG_DATA(scmsgp);
910 rthdr = inet6_rth_init((void *)rthdr, rthdrlen,
911 IPV6_RTHDR_TYPE_0, argc - 1);
913 errx(1, "can't initialize rthdr");
914 #else /* old advanced API */
915 if ((scmsgp = (struct cmsghdr *)inet6_rthdr_init(scmsgp,
916 IPV6_RTHDR_TYPE_0)) == 0)
917 errx(1, "can't initialize rthdr");
918 #endif /* USE_RFC2292BIS */
920 for (hops = 0; hops < argc - 1; hops++) {
921 struct addrinfo *iaip;
923 if ((error = getaddrinfo(argv[hops], NULL, &hints,
925 errx(1, "%s", gai_strerror(error));
926 if (SIN6(iaip->ai_addr)->sin6_family != AF_INET6)
928 "bad addr family of an intermediate addr");
930 #ifdef USE_RFC2292BIS
931 if (inet6_rth_add(rthdr,
932 &(SIN6(iaip->ai_addr))->sin6_addr))
933 errx(1, "can't add an intermediate node");
934 #else /* old advanced API */
935 if (inet6_rthdr_add(scmsgp,
936 &(SIN6(iaip->ai_addr))->sin6_addr,
938 errx(1, "can't add an intermediate node");
939 #endif /* USE_RFC2292BIS */
943 #ifndef USE_RFC2292BIS
944 if (inet6_rthdr_lasthop(scmsgp, IPV6_RTHDR_LOOSE))
945 errx(1, "can't set the last flag");
948 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
951 if (!(options & F_SRCADDR)) {
953 * get the source address. XXX since we revoked the root
954 * privilege, we cannot use a raw socket for this.
957 socklen_t len = sizeof(src);
959 if ((dummy = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
960 err(1, "UDP socket");
962 src.sin6_family = AF_INET6;
963 src.sin6_addr = dst.sin6_addr;
964 src.sin6_port = ntohs(DUMMY_PORT);
965 src.sin6_scope_id = dst.sin6_scope_id;
967 #ifdef USE_RFC2292BIS
969 setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
970 (void *)pktinfo, sizeof(*pktinfo)))
971 err(1, "UDP setsockopt(IPV6_PKTINFO)");
973 if (hoplimit != -1 &&
974 setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
975 (void *)&hoplimit, sizeof(hoplimit)))
976 err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)");
978 if (hoplimit != -1 &&
979 setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
980 (void *)&hoplimit, sizeof(hoplimit)))
981 err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)");
984 setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
985 (void *)rthdr, (rthdr->ip6r_len + 1) << 3))
986 err(1, "UDP setsockopt(IPV6_RTHDR)");
987 #else /* old advanced API */
988 if (smsghdr.msg_control &&
989 setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTOPTIONS,
990 (void *)smsghdr.msg_control, smsghdr.msg_controllen))
991 err(1, "UDP setsockopt(IPV6_PKTOPTIONS)");
994 if (connect(dummy, (struct sockaddr *)&src, len) < 0)
995 err(1, "UDP connect");
997 if (getsockname(dummy, (struct sockaddr *)&src, &len) < 0)
998 err(1, "getsockname");
1003 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
1005 if (datalen > sockbufsize)
1006 warnx("you need -b to increase socket buffer size");
1007 if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
1008 sizeof(sockbufsize)) < 0)
1009 err(1, "setsockopt(SO_SNDBUF)");
1010 if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
1011 sizeof(sockbufsize)) < 0)
1012 err(1, "setsockopt(SO_RCVBUF)");
1015 if (datalen > 8 * 1024) /*XXX*/
1016 warnx("you need -b to increase socket buffer size");
1018 * When pinging the broadcast address, you can get a lot of
1019 * answers. Doing something so evil is useful if you are trying
1020 * to stress the ethernet, or just want to fill the arp cache
1021 * to get some stuff for /etc/ethers.
1024 setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
1030 #ifndef USE_SIN6_SCOPE_ID
1031 #ifdef IPV6_RECVPKTINFO
1032 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
1033 sizeof(optval)) < 0)
1034 warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
1035 #else /* old adv. API */
1036 if (setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &optval,
1037 sizeof(optval)) < 0)
1038 warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */
1040 #endif /* USE_SIN6_SCOPE_ID */
1041 #ifdef IPV6_RECVHOPLIMIT
1042 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
1043 sizeof(optval)) < 0)
1044 warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
1045 #else /* old adv. API */
1046 if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
1047 sizeof(optval)) < 0)
1048 warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
1051 printf("PING6(%lu=40+8+%lu bytes) ", (unsigned long)(40 + pingerlen()),
1052 (unsigned long)(pingerlen() - 8));
1053 printf("%s --> ", pr_addr((struct sockaddr *)&src, sizeof(src)));
1054 printf("%s\n", pr_addr((struct sockaddr *)&dst, sizeof(dst)));
1056 while (preload--) /* Fire off them quickies. */
1059 (void)signal(SIGINT, onsignal);
1061 (void)signal(SIGINFO, onsignal);
1064 if ((options & F_FLOOD) == 0) {
1065 (void)signal(SIGALRM, onsignal);
1066 itimer.it_interval = interval;
1067 itimer.it_value = interval;
1068 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1069 if (ntransmitted == 0)
1074 fdmasks = howmany(s + 1, NFDBITS) * sizeof(fd_mask);
1075 if ((fdmaskp = malloc(fdmasks)) == NULL)
1079 seenalrm = seenint = 0;
1084 /* For control (ancillary) data received from recvmsg() */
1085 cm = (struct cmsghdr *)malloc(CONTROLLEN);
1091 struct iovec iov[2];
1093 /* signal handling */
1095 /* last packet sent, timeout reached? */
1096 if (npackets && ntransmitted >= npackets) {
1097 struct timeval zerotime = {0, 0};
1098 itimer.it_value = zerotime;
1099 itimer.it_interval = zerotime;
1100 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1101 seenalrm = 0; /* clear flag */
1121 if (options & F_FLOOD) {
1127 timeout.tv_usec = 10000;
1139 fdmaskp[0].events = POLLIN;
1140 cc = poll(fdmaskp, 1, timeout);
1142 memset(fdmaskp, 0, fdmasks);
1144 cc = select(s + 1, fdmaskp, NULL, NULL, tv);
1147 if (errno != EINTR) {
1159 m.msg_name = (caddr_t)&from;
1160 m.msg_namelen = sizeof(from);
1161 memset(&iov, 0, sizeof(iov));
1162 iov[0].iov_base = (caddr_t)packet;
1163 iov[0].iov_len = packlen;
1166 memset(cm, 0, CONTROLLEN);
1167 m.msg_control = (void *)cm;
1168 m.msg_controllen = CONTROLLEN;
1170 cc = recvmsg(s, &m, 0);
1172 if (errno != EINTR) {
1177 } else if (cc == 0) {
1181 * receive control messages only. Process the
1182 * exceptions (currently the only possiblity is
1183 * a path MTU notification.)
1185 if ((mtu = get_pathmtu(&m)) > 0) {
1186 if ((options & F_VERBOSE) != 0) {
1187 printf("new path MTU (%d) is "
1194 * an ICMPv6 message (probably an echoreply) arrived.
1196 pr_pack(packet, cc, &m);
1198 if (((options & F_ONCE) != 0 && nreceived > 0) ||
1199 (npackets > 0 && nreceived >= npackets))
1201 if (ntransmitted - nreceived - 1 > nmissedmax) {
1202 nmissedmax = ntransmitted - nreceived - 1;
1203 if (options & F_MISSED)
1204 (void)write(STDOUT_FILENO, &BBELL, 1);
1208 exit(nreceived == 0 ? 2 : 0);
1233 * This routine transmits another ping6.
1238 struct itimerval itimer;
1244 * If we're not transmitting any more packets, change the timer
1245 * to wait two round-trip times if we've received any packets or
1246 * ten seconds if we haven't.
1250 itimer.it_value.tv_sec = 2 * tmax / 1000;
1251 if (itimer.it_value.tv_sec == 0)
1252 itimer.it_value.tv_sec = 1;
1254 itimer.it_value.tv_sec = MAXWAIT;
1255 itimer.it_interval.tv_sec = 0;
1256 itimer.it_interval.tv_usec = 0;
1257 itimer.it_value.tv_usec = 0;
1259 (void)signal(SIGALRM, onsignal);
1260 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1265 * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
1266 * will be added on by the kernel. The ID field is our UNIX process ID,
1267 * and the sequence number is an ascending integer. The first 8 bytes
1268 * of the data portion are used to hold a UNIX "timeval" struct in VAX
1269 * byte-order, to compute the round-trip time.
1276 if (options & F_FQDN)
1277 l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1278 else if (options & F_FQDNOLD)
1280 else if (options & F_NODEADDR)
1281 l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1282 else if (options & F_SUPTYPES)
1285 l = ICMP6ECHOLEN + datalen;
1293 struct icmp6_hdr *icp;
1294 struct iovec iov[2];
1296 struct icmp6_nodeinfo *nip;
1299 if (npackets && ntransmitted >= npackets)
1300 return(-1); /* no more transmission */
1302 icp = (struct icmp6_hdr *)outpack;
1303 nip = (struct icmp6_nodeinfo *)outpack;
1304 memset(icp, 0, sizeof(*icp));
1305 icp->icmp6_cksum = 0;
1306 seq = ntransmitted++;
1307 CLR(seq % mx_dup_ck);
1309 if (options & F_FQDN) {
1310 icp->icmp6_type = ICMP6_NI_QUERY;
1311 icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
1312 nip->ni_qtype = htons(NI_QTYPE_FQDN);
1313 nip->ni_flags = htons(0);
1315 memcpy(nip->icmp6_ni_nonce, nonce,
1316 sizeof(nip->icmp6_ni_nonce));
1317 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1319 memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
1320 sizeof(dst.sin6_addr));
1321 cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1323 } else if (options & F_FQDNOLD) {
1324 /* packet format in 03 draft - no Subject data on queries */
1325 icp->icmp6_type = ICMP6_NI_QUERY;
1326 icp->icmp6_code = 0; /* code field is always 0 */
1327 nip->ni_qtype = htons(NI_QTYPE_FQDN);
1328 nip->ni_flags = htons(0);
1330 memcpy(nip->icmp6_ni_nonce, nonce,
1331 sizeof(nip->icmp6_ni_nonce));
1332 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1336 } else if (options & F_NODEADDR) {
1337 icp->icmp6_type = ICMP6_NI_QUERY;
1338 icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
1339 nip->ni_qtype = htons(NI_QTYPE_NODEADDR);
1340 nip->ni_flags = naflags;
1342 memcpy(nip->icmp6_ni_nonce, nonce,
1343 sizeof(nip->icmp6_ni_nonce));
1344 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1346 memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
1347 sizeof(dst.sin6_addr));
1348 cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1350 } else if (options & F_SUPTYPES) {
1351 icp->icmp6_type = ICMP6_NI_QUERY;
1352 icp->icmp6_code = ICMP6_NI_SUBJ_FQDN; /*empty*/
1353 nip->ni_qtype = htons(NI_QTYPE_SUPTYPES);
1354 /* we support compressed bitmap */
1355 nip->ni_flags = NI_SUPTYPE_FLAG_COMPRESS;
1357 memcpy(nip->icmp6_ni_nonce, nonce,
1358 sizeof(nip->icmp6_ni_nonce));
1359 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1363 icp->icmp6_type = ICMP6_ECHO_REQUEST;
1364 icp->icmp6_code = 0;
1365 icp->icmp6_id = htons(ident);
1366 icp->icmp6_seq = ntohs(seq);
1370 (void)gettimeofday(&tv, NULL);
1371 tv32 = (struct tv32 *)&outpack[ICMP6ECHOLEN];
1372 tv32->tv32_sec = htonl(tv.tv_sec);
1373 tv32->tv32_usec = htonl(tv.tv_usec);
1375 cc = ICMP6ECHOLEN + datalen;
1379 if (pingerlen() != cc)
1380 errx(1, "internal error; length mismatch");
1383 smsghdr.msg_name = (caddr_t)&dst;
1384 smsghdr.msg_namelen = sizeof(dst);
1385 memset(&iov, 0, sizeof(iov));
1386 iov[0].iov_base = (caddr_t)outpack;
1387 iov[0].iov_len = cc;
1388 smsghdr.msg_iov = iov;
1389 smsghdr.msg_iovlen = 1;
1391 i = sendmsg(s, &smsghdr, 0);
1393 if (i < 0 || i != cc) {
1396 (void)printf("ping6: wrote %s %d chars, ret=%d\n",
1399 if (!(options & F_QUIET) && options & F_FLOOD)
1400 (void)write(STDOUT_FILENO, &DOT, 1);
1407 const struct icmp6_hdr *icp;
1409 if (ntohs(icp->icmp6_id) == ident)
1417 const struct icmp6_nodeinfo *nip;
1419 if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
1420 nonce + sizeof(u_int16_t),
1421 sizeof(nonce) - sizeof(u_int16_t)) == 0)
1428 dnsdecode(sp, ep, base, buf, bufsiz)
1431 const u_char *base; /*base for compressed name*/
1437 char cresult[MAXDNAME + 1];
1448 if (i == 0 || cp != *sp) {
1449 if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
1450 return NULL; /*result overrun*/
1456 if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
1457 /* DNS compression */
1461 comp = base + (i & 0x3f);
1462 if (dnsdecode(&comp, cp, base, cresult,
1463 sizeof(cresult)) == NULL)
1465 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1466 return NULL; /*result overrun*/
1468 } else if ((i & 0x3f) == i) {
1470 return NULL; /*source overrun*/
1471 while (i-- > 0 && cp < ep) {
1472 l = snprintf(cresult, sizeof(cresult),
1473 isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
1474 if (l >= sizeof(cresult) || l < 0)
1476 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1477 return NULL; /*result overrun*/
1481 return NULL; /*invalid label*/
1484 return NULL; /*not terminated*/
1492 * Print out the packet, if it came from us. This logic is necessary
1493 * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
1494 * which arrive ('tis only fair). This permits multiple copies of this
1495 * program to be run without having intermingled output (or statistics!).
1498 pr_pack(buf, cc, mhdr)
1501 struct msghdr *mhdr;
1503 #define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
1504 struct icmp6_hdr *icp;
1505 struct icmp6_nodeinfo *ni;
1508 struct sockaddr *from;
1510 u_char *cp = NULL, *dp, *end = buf + cc;
1511 struct in6_pktinfo *pktinfo = NULL;
1512 struct timeval tv, tp;
1514 double triptime = 0;
1519 char dnsname[MAXDNAME + 1];
1521 (void)gettimeofday(&tv, NULL);
1523 if (!mhdr || !mhdr->msg_name ||
1524 mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
1525 ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
1526 if (options & F_VERBOSE)
1527 warnx("invalid peername");
1530 from = (struct sockaddr *)mhdr->msg_name;
1531 fromlen = mhdr->msg_namelen;
1532 if (cc < sizeof(struct icmp6_hdr)) {
1533 if (options & F_VERBOSE)
1534 warnx("packet too short (%d bytes) from %s", cc,
1535 pr_addr(from, fromlen));
1538 if (((mhdr->msg_flags & MSG_CTRUNC) != 0) &&
1539 (options & F_VERBOSE) != 0)
1540 warnx("some control data discarded, insufficient buffer size");
1541 icp = (struct icmp6_hdr *)buf;
1542 ni = (struct icmp6_nodeinfo *)buf;
1545 if ((hoplim = get_hoplim(mhdr)) == -1) {
1546 warnx("failed to get receiving hop limit");
1549 if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
1550 warnx("failed to get receiving packet information");
1554 if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
1555 seq = ntohs(icp->icmp6_seq);
1558 tpp = (struct tv32 *)(icp + 1);
1559 tp.tv_sec = ntohl(tpp->tv32_sec);
1560 tp.tv_usec = ntohl(tpp->tv32_usec);
1562 triptime = ((double)tv.tv_sec) * 1000.0 +
1563 ((double)tv.tv_usec) / 1000.0;
1565 tsumsq += triptime * triptime;
1566 if (triptime < tmin)
1568 if (triptime > tmax)
1572 if (TST(seq % mx_dup_ck)) {
1577 SET(seq % mx_dup_ck);
1581 if (options & F_QUIET)
1584 if (options & F_FLOOD)
1585 (void)write(STDOUT_FILENO, &BSPACE, 1);
1587 if (options & F_AUDIBLE)
1588 (void)write(STDOUT_FILENO, &BBELL, 1);
1589 (void)printf("%d bytes from %s, icmp_seq=%u", cc,
1590 pr_addr(from, fromlen), seq);
1591 (void)printf(" hlim=%d", hoplim);
1592 if ((options & F_VERBOSE) != 0) {
1593 struct sockaddr_in6 dstsa;
1595 memset(&dstsa, 0, sizeof(dstsa));
1596 dstsa.sin6_family = AF_INET6;
1597 dstsa.sin6_len = sizeof(dstsa);
1598 dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
1599 dstsa.sin6_addr = pktinfo->ipi6_addr;
1600 (void)printf(" dst=%s",
1601 pr_addr((struct sockaddr *)&dstsa,
1605 (void)printf(" time=%.3f ms", triptime);
1607 (void)printf("(DUP!)");
1608 /* check the data */
1609 cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1610 dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1611 for (i = 8; cp < end; ++i, ++cp, ++dp) {
1613 (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
1618 } else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
1619 seq = ntohs(*(u_int16_t *)ni->icmp6_ni_nonce);
1621 if (TST(seq % mx_dup_ck)) {
1626 SET(seq % mx_dup_ck);
1630 if (options & F_QUIET)
1633 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1635 switch (ntohs(ni->ni_code)) {
1636 case ICMP6_NI_SUCCESS:
1638 case ICMP6_NI_REFUSED:
1639 printf("refused, type 0x%x", ntohs(ni->ni_type));
1641 case ICMP6_NI_UNKNOWN:
1642 printf("unknown, type 0x%x", ntohs(ni->ni_type));
1645 printf("unknown code 0x%x, type 0x%x",
1646 ntohs(ni->ni_code), ntohs(ni->ni_type));
1650 switch (ntohs(ni->ni_qtype)) {
1652 printf("NodeInfo NOOP");
1654 case NI_QTYPE_SUPTYPES:
1655 pr_suptypes(ni, end - (u_char *)ni);
1657 case NI_QTYPE_NODEADDR:
1658 pr_nodeaddr(ni, end - (u_char *)ni);
1661 default: /* XXX: for backward compatibility */
1662 cp = (u_char *)ni + ICMP6_NIRLEN;
1663 if (buf[off + ICMP6_NIRLEN] ==
1664 cc - off - ICMP6_NIRLEN - 1)
1669 cp++; /* skip length */
1671 safeputc(*cp & 0xff);
1677 if (dnsdecode((const u_char **)&cp, end,
1678 (const u_char *)(ni + 1), dnsname,
1679 sizeof(dnsname)) == NULL) {
1684 * name-lookup special handling for
1687 if (cp + 1 <= end && !*cp &&
1688 strlen(dnsname) > 0) {
1689 dnsname[strlen(dnsname) - 1] = '\0';
1692 printf("%s%s", i > 0 ? "," : "",
1696 if (options & F_VERBOSE) {
1700 (void)printf(" ("); /*)*/
1702 switch (ni->ni_code) {
1703 case ICMP6_NI_REFUSED:
1704 (void)printf("refused");
1707 case ICMP6_NI_UNKNOWN:
1708 (void)printf("unknown qtype");
1713 if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
1714 /* case of refusion, unknown */
1719 ttl = (int32_t)ntohl(*(u_long *)&buf[off+ICMP6ECHOLEN+8]);
1722 if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
1723 (void)printf("TTL=%d:meaningless",
1727 (void)printf("TTL=%d:invalid",
1730 (void)printf("TTL=%d", ttl);
1740 cp = (u_char *)ni + ICMP6_NIRLEN;
1749 if (buf[off + ICMP6_NIRLEN] !=
1750 cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
1753 (void)printf("invalid namelen:%d/%lu",
1754 buf[off + ICMP6_NIRLEN],
1755 (u_long)cc - off - ICMP6_NIRLEN - 1);
1765 /* We've got something other than an ECHOREPLY */
1766 if (!(options & F_VERBOSE))
1768 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1772 if (!(options & F_FLOOD)) {
1773 (void)putchar('\n');
1774 if (options & F_VERBOSE)
1776 (void)fflush(stdout);
1783 struct msghdr *mhdr;
1790 bufp = mhdr->msg_control;
1791 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
1792 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
1793 if (cm->cmsg_level != IPPROTO_IPV6)
1796 bufsize = CONTROLLEN - ((caddr_t)CMSG_DATA(cm) - (caddr_t)bufp);
1799 switch (cm->cmsg_type) {
1801 printf(" HbH Options: ");
1802 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1805 #ifdef IPV6_RTHDRDSTOPTS
1806 case IPV6_RTHDRDSTOPTS:
1808 printf(" Dst Options: ");
1809 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1812 printf(" Routing: ");
1813 pr_rthdr(CMSG_DATA(cm), (size_t)bufsize);
1819 #ifdef USE_RFC2292BIS
1821 pr_ip6opt(void *extbuf, size_t bufsize)
1823 struct ip6_hbh *ext;
1826 socklen_t extlen, len, origextlen;
1832 ext = (struct ip6_hbh *)extbuf;
1833 extlen = (ext->ip6h_len + 1) * 8;
1834 printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
1835 (unsigned int)ext->ip6h_len, (unsigned long)extlen);
1838 * Bounds checking on the ancillary data buffer:
1839 * subtract the size of a cmsg structure from the buffer size.
1841 if (bufsize < (extlen + CMSG_SPACE(0))) {
1842 origextlen = extlen;
1843 extlen = bufsize - CMSG_SPACE(0);
1844 warnx("options truncated, showing only %u (total=%u)",
1845 (unsigned int)(extlen / 8 - 1),
1846 (unsigned int)(ext->ip6h_len));
1851 currentlen = inet6_opt_next(extbuf, extlen, currentlen,
1852 &type, &len, &databuf);
1853 if (currentlen == -1)
1857 * Note that inet6_opt_next automatically skips any padding
1862 offset = inet6_opt_get_val(databuf, offset,
1863 &value4, sizeof(value4));
1864 printf(" Jumbo Payload Opt: Length %u\n",
1865 (u_int32_t)ntohl(value4));
1867 case IP6OPT_ROUTER_ALERT:
1869 offset = inet6_opt_get_val(databuf, offset,
1870 &value2, sizeof(value2));
1871 printf(" Router Alert Opt: Type %u\n",
1875 printf(" Received Opt %u len %lu\n",
1876 type, (unsigned long)len);
1882 #else /* !USE_RFC2292BIS */
1885 pr_ip6opt(void *extbuf, size_t bufsize __unused)
1890 #endif /* USE_RFC2292BIS */
1892 #ifdef USE_RFC2292BIS
1894 pr_rthdr(void *extbuf, size_t bufsize)
1896 struct in6_addr *in6;
1897 char ntopbuf[INET6_ADDRSTRLEN];
1898 struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
1899 int i, segments, origsegs, rthsize, size0, size1;
1901 /* print fixed part of the header */
1902 printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
1903 rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
1904 if ((segments = inet6_rth_segments(extbuf)) >= 0) {
1905 printf("%d segments, ", segments);
1906 printf("%d left\n", rh->ip6r_segleft);
1908 printf("segments unknown, ");
1909 printf("%d left\n", rh->ip6r_segleft);
1914 * Bounds checking on the ancillary data buffer. When calculating
1915 * the number of items to show keep in mind:
1916 * - The size of the cmsg structure
1917 * - The size of one segment (the size of a Type 0 routing header)
1918 * - When dividing add a fudge factor of one in case the
1919 * dividend is not evenly divisible by the divisor
1921 rthsize = (rh->ip6r_len + 1) * 8;
1922 if (bufsize < (rthsize + CMSG_SPACE(0))) {
1923 origsegs = segments;
1924 size0 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 0);
1925 size1 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 1);
1926 segments -= (rthsize - (bufsize - CMSG_SPACE(0))) /
1927 (size1 - size0) + 1;
1928 warnx("segments truncated, showing only %d (total=%d)",
1929 segments, origsegs);
1932 for (i = 0; i < segments; i++) {
1933 in6 = inet6_rth_getaddr(extbuf, i);
1935 printf(" [%d]<NULL>\n", i);
1937 if (!inet_ntop(AF_INET6, in6, ntopbuf,
1939 strlcpy(ntopbuf, "?", sizeof(ntopbuf));
1940 printf(" [%d]%s\n", i, ntopbuf);
1948 #else /* !USE_RFC2292BIS */
1951 pr_rthdr(void *extbuf, size_t bufsize __unused)
1956 #endif /* USE_RFC2292BIS */
1959 pr_bitrange(v, soff, ii)
1969 /* shift till we have 0x01 */
1970 if ((v & 0x01) == 0) {
1972 printf("-%u", soff + off - 1);
1983 case 0x04: case 0x0c:
1994 /* we have 0x01 with us */
1995 for (i = 0; i < 32 - off; i++) {
1996 if ((v & (0x01 << i)) == 0)
2000 printf(" %u", soff + off);
2008 pr_suptypes(ni, nilen)
2009 struct icmp6_nodeinfo *ni; /* ni->qtype must be SUPTYPES */
2014 const u_char *cp, *end;
2017 u_int16_t words; /*32bit count*/
2020 #define MAXQTYPES (1 << 16)
2024 cp = (u_char *)(ni + 1);
2025 end = ((u_char *)ni) + nilen;
2029 printf("NodeInfo Supported Qtypes");
2030 if (options & F_VERBOSE) {
2031 if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
2032 printf(", compressed bitmap");
2034 printf(", raw bitmap");
2038 clen = (size_t)(end - cp);
2039 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
2040 if (clen == 0 || clen > MAXQTYPES / 8 ||
2046 if (clen < sizeof(cbit) || clen % sizeof(v))
2048 memcpy(&cbit, cp, sizeof(cbit));
2049 if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
2053 clen = ntohs(cbit.words) * sizeof(v);
2054 if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
2059 for (off = 0; off < clen; off += sizeof(v)) {
2060 memcpy(&v, cp + off, sizeof(v));
2061 v = (u_int32_t)ntohl(v);
2062 b = pr_bitrange(v, (int)(cur + off * 8), b);
2064 /* flush the remaining bits */
2065 b = pr_bitrange(0, (int)(cur + off * 8), b);
2069 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
2070 cur += ntohs(cbit.skip) * 32;
2075 pr_nodeaddr(ni, nilen)
2076 struct icmp6_nodeinfo *ni; /* ni->qtype must be NODEADDR */
2079 u_char *cp = (u_char *)(ni + 1);
2080 char ntop_buf[INET6_ADDRSTRLEN];
2083 nilen -= sizeof(struct icmp6_nodeinfo);
2085 if (options & F_VERBOSE) {
2086 switch (ni->ni_code) {
2087 case ICMP6_NI_REFUSED:
2088 (void)printf("refused");
2090 case ICMP6_NI_UNKNOWN:
2091 (void)printf("unknown qtype");
2094 if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
2095 (void)printf(" truncated");
2099 printf(" no address\n");
2102 * In icmp-name-lookups 05 and later, TTL of each returned address
2103 * is contained in the resposne. We try to detect the version
2104 * by the length of the data, but note that the detection algorithm
2105 * is incomplete. We assume the latest draft by default.
2107 if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
2113 /* XXX: alignment? */
2114 ttl = (u_int32_t)ntohl(*(u_int32_t *)cp);
2115 cp += sizeof(u_int32_t);
2116 nilen -= sizeof(u_int32_t);
2119 if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
2121 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2122 printf(" %s", ntop_buf);
2124 if (ttl == 0xffffffff) {
2126 * XXX: can this convention be applied to all
2127 * type of TTL (i.e. non-ND TTL)?
2129 printf("(TTL=infty)");
2132 printf("(TTL=%u)", ttl);
2136 nilen -= sizeof(struct in6_addr);
2137 cp += sizeof(struct in6_addr);
2143 struct msghdr *mhdr;
2147 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2148 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2149 if (cm->cmsg_len == 0)
2152 if (cm->cmsg_level == IPPROTO_IPV6 &&
2153 cm->cmsg_type == IPV6_HOPLIMIT &&
2154 cm->cmsg_len == CMSG_LEN(sizeof(int)))
2155 return(*(int *)CMSG_DATA(cm));
2161 struct in6_pktinfo *
2162 get_rcvpktinfo(mhdr)
2163 struct msghdr *mhdr;
2167 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2168 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2169 if (cm->cmsg_len == 0)
2172 if (cm->cmsg_level == IPPROTO_IPV6 &&
2173 cm->cmsg_type == IPV6_PKTINFO &&
2174 cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo)))
2175 return((struct in6_pktinfo *)CMSG_DATA(cm));
2183 struct msghdr *mhdr;
2185 #ifdef IPV6_RECVPATHMTU
2187 struct ip6_mtuinfo *mtuctl = NULL;
2189 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2190 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2191 if (cm->cmsg_len == 0)
2194 if (cm->cmsg_level == IPPROTO_IPV6 &&
2195 cm->cmsg_type == IPV6_PATHMTU &&
2196 cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
2197 mtuctl = (struct ip6_mtuinfo *)CMSG_DATA(cm);
2200 * If the notified destination is different from
2201 * the one we are pinging, just ignore the info.
2202 * We check the scope ID only when both notified value
2203 * and our own value have non-0 values, because we may
2204 * have used the default scope zone ID for sending,
2205 * in which case the scope ID value is 0.
2207 if (!IN6_ARE_ADDR_EQUAL(&mtuctl->ip6m_addr.sin6_addr,
2209 (mtuctl->ip6m_addr.sin6_scope_id &&
2210 dst.sin6_scope_id &&
2211 mtuctl->ip6m_addr.sin6_scope_id !=
2212 dst.sin6_scope_id)) {
2213 if ((options & F_VERBOSE) != 0) {
2214 printf("path MTU for %s is notified. "
2216 pr_addr((struct sockaddr *)&mtuctl->ip6m_addr,
2217 sizeof(mtuctl->ip6m_addr)));
2223 * Ignore an invalid MTU. XXX: can we just believe
2226 if (mtuctl->ip6m_mtu < IPV6_MMTU)
2229 /* notification for our destination. return the MTU. */
2230 return((int)mtuctl->ip6m_mtu);
2239 * Subtract 2 timeval structs: out = out - in. Out is assumed to
2244 struct timeval *out, *in;
2246 if ((out->tv_usec -= in->tv_usec) < 0) {
2248 out->tv_usec += 1000000;
2250 out->tv_sec -= in->tv_sec;
2264 (void)signal(SIGINT, SIG_DFL);
2265 (void)kill(getpid(), SIGINT);
2273 * Print out statistics.
2279 (void)printf("\n--- %s ping6 statistics ---\n", hostname);
2280 (void)printf("%ld packets transmitted, ", ntransmitted);
2281 (void)printf("%ld packets received, ", nreceived);
2283 (void)printf("+%ld duplicates, ", nrepeats);
2285 if (nreceived > ntransmitted)
2286 (void)printf("-- somebody's duplicating packets!");
2288 (void)printf("%.1f%% packet loss",
2289 ((((double)ntransmitted - nreceived) * 100.0) /
2292 (void)putchar('\n');
2293 if (nreceived && timing) {
2294 /* Only display average to microseconds */
2295 double num = nreceived + nrepeats;
2296 double avg = tsum / num;
2297 double dev = sqrt(tsumsq / num - avg * avg);
2299 "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
2300 tmin, avg, tmax, dev);
2301 (void)fflush(stdout);
2303 (void)fflush(stdout);
2307 static const char *niqcode[] = {
2309 "DNS label", /*or empty*/
2314 static const char *nircode[] = {
2315 "Success", "Refused", "Unknown",
2321 * Print a descriptive string about an ICMP header.
2325 struct icmp6_hdr *icp;
2328 char ntop_buf[INET6_ADDRSTRLEN];
2329 struct nd_redirect *red;
2330 struct icmp6_nodeinfo *ni;
2331 char dnsname[MAXDNAME + 1];
2335 switch (icp->icmp6_type) {
2336 case ICMP6_DST_UNREACH:
2337 switch (icp->icmp6_code) {
2338 case ICMP6_DST_UNREACH_NOROUTE:
2339 (void)printf("No Route to Destination\n");
2341 case ICMP6_DST_UNREACH_ADMIN:
2342 (void)printf("Destination Administratively "
2345 case ICMP6_DST_UNREACH_BEYONDSCOPE:
2346 (void)printf("Destination Unreachable Beyond Scope\n");
2348 case ICMP6_DST_UNREACH_ADDR:
2349 (void)printf("Destination Host Unreachable\n");
2351 case ICMP6_DST_UNREACH_NOPORT:
2352 (void)printf("Destination Port Unreachable\n");
2355 (void)printf("Destination Unreachable, Bad Code: %d\n",
2359 /* Print returned IP header information */
2360 pr_retip((struct ip6_hdr *)(icp + 1), end);
2362 case ICMP6_PACKET_TOO_BIG:
2363 (void)printf("Packet too big mtu = %d\n",
2364 (int)ntohl(icp->icmp6_mtu));
2365 pr_retip((struct ip6_hdr *)(icp + 1), end);
2367 case ICMP6_TIME_EXCEEDED:
2368 switch (icp->icmp6_code) {
2369 case ICMP6_TIME_EXCEED_TRANSIT:
2370 (void)printf("Time to live exceeded\n");
2372 case ICMP6_TIME_EXCEED_REASSEMBLY:
2373 (void)printf("Frag reassembly time exceeded\n");
2376 (void)printf("Time exceeded, Bad Code: %d\n",
2380 pr_retip((struct ip6_hdr *)(icp + 1), end);
2382 case ICMP6_PARAM_PROB:
2383 (void)printf("Parameter problem: ");
2384 switch (icp->icmp6_code) {
2385 case ICMP6_PARAMPROB_HEADER:
2386 (void)printf("Erroneous Header ");
2388 case ICMP6_PARAMPROB_NEXTHEADER:
2389 (void)printf("Unknown Nextheader ");
2391 case ICMP6_PARAMPROB_OPTION:
2392 (void)printf("Unrecognized Option ");
2395 (void)printf("Bad code(%d) ", icp->icmp6_code);
2398 (void)printf("pointer = 0x%02x\n",
2399 (u_int32_t)ntohl(icp->icmp6_pptr));
2400 pr_retip((struct ip6_hdr *)(icp + 1), end);
2402 case ICMP6_ECHO_REQUEST:
2403 (void)printf("Echo Request");
2404 /* XXX ID + Seq + Data */
2406 case ICMP6_ECHO_REPLY:
2407 (void)printf("Echo Reply");
2408 /* XXX ID + Seq + Data */
2410 case ICMP6_MEMBERSHIP_QUERY:
2411 (void)printf("Listener Query");
2413 case ICMP6_MEMBERSHIP_REPORT:
2414 (void)printf("Listener Report");
2416 case ICMP6_MEMBERSHIP_REDUCTION:
2417 (void)printf("Listener Done");
2419 case ND_ROUTER_SOLICIT:
2420 (void)printf("Router Solicitation");
2422 case ND_ROUTER_ADVERT:
2423 (void)printf("Router Advertisement");
2425 case ND_NEIGHBOR_SOLICIT:
2426 (void)printf("Neighbor Solicitation");
2428 case ND_NEIGHBOR_ADVERT:
2429 (void)printf("Neighbor Advertisement");
2432 red = (struct nd_redirect *)icp;
2433 (void)printf("Redirect\n");
2434 if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
2436 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2437 (void)printf("Destination: %s", ntop_buf);
2438 if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
2440 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2441 (void)printf(" New Target: %s", ntop_buf);
2443 case ICMP6_NI_QUERY:
2444 (void)printf("Node Information Query");
2445 /* XXX ID + Seq + Data */
2446 ni = (struct icmp6_nodeinfo *)icp;
2447 l = end - (u_char *)(ni + 1);
2449 switch (ntohs(ni->ni_qtype)) {
2451 (void)printf("NOOP");
2453 case NI_QTYPE_SUPTYPES:
2454 (void)printf("Supported qtypes");
2457 (void)printf("DNS name");
2459 case NI_QTYPE_NODEADDR:
2460 (void)printf("nodeaddr");
2462 case NI_QTYPE_IPV4ADDR:
2463 (void)printf("IPv4 nodeaddr");
2466 (void)printf("unknown qtype");
2469 if (options & F_VERBOSE) {
2470 switch (ni->ni_code) {
2471 case ICMP6_NI_SUBJ_IPV6:
2472 if (l == sizeof(struct in6_addr) &&
2473 inet_ntop(AF_INET6, ni + 1, ntop_buf,
2474 sizeof(ntop_buf)) != NULL) {
2475 (void)printf(", subject=%s(%s)",
2476 niqcode[ni->ni_code], ntop_buf);
2479 /* backward compat to -W */
2480 (void)printf(", oldfqdn");
2482 (void)printf(", invalid");
2486 case ICMP6_NI_SUBJ_FQDN:
2487 if (end == (u_char *)(ni + 1)) {
2488 (void)printf(", no subject");
2491 printf(", subject=%s", niqcode[ni->ni_code]);
2492 cp = (const u_char *)(ni + 1);
2493 if (dnsdecode(&cp, end, NULL, dnsname,
2494 sizeof(dnsname)) != NULL)
2495 printf("(%s)", dnsname);
2497 printf("(invalid)");
2499 case ICMP6_NI_SUBJ_IPV4:
2500 if (l == sizeof(struct in_addr) &&
2501 inet_ntop(AF_INET, ni + 1, ntop_buf,
2502 sizeof(ntop_buf)) != NULL) {
2503 (void)printf(", subject=%s(%s)",
2504 niqcode[ni->ni_code], ntop_buf);
2506 (void)printf(", invalid");
2509 (void)printf(", invalid");
2514 case ICMP6_NI_REPLY:
2515 (void)printf("Node Information Reply");
2516 /* XXX ID + Seq + Data */
2517 ni = (struct icmp6_nodeinfo *)icp;
2519 switch (ntohs(ni->ni_qtype)) {
2521 (void)printf("NOOP");
2523 case NI_QTYPE_SUPTYPES:
2524 (void)printf("Supported qtypes");
2527 (void)printf("DNS name");
2529 case NI_QTYPE_NODEADDR:
2530 (void)printf("nodeaddr");
2532 case NI_QTYPE_IPV4ADDR:
2533 (void)printf("IPv4 nodeaddr");
2536 (void)printf("unknown qtype");
2539 if (options & F_VERBOSE) {
2540 if (ni->ni_code > sizeof(nircode) / sizeof(nircode[0]))
2541 printf(", invalid");
2543 printf(", %s", nircode[ni->ni_code]);
2547 (void)printf("Bad ICMP type: %d", icp->icmp6_type);
2553 * Print an IP6 header.
2557 struct ip6_hdr *ip6;
2559 u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
2561 char ntop_buf[INET6_ADDRSTRLEN];
2563 tc = *(&ip6->ip6_vfc + 1); /* XXX */
2564 tc = (tc >> 4) & 0x0f;
2565 tc |= (ip6->ip6_vfc << 4);
2567 printf("Vr TC Flow Plen Nxt Hlim\n");
2568 printf(" %1x %02x %05x %04x %02x %02x\n",
2569 (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
2570 ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
2571 if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
2572 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2573 printf("%s->", ntop_buf);
2574 if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
2575 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2576 printf("%s\n", ntop_buf);
2581 * Return an ascii host address as a dotted quad and optionally with
2585 pr_addr(addr, addrlen)
2586 struct sockaddr *addr;
2589 static char buf[NI_MAXHOST];
2592 if ((options & F_HOSTNAME) == 0)
2593 flag |= NI_NUMERICHOST;
2595 if (getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0, flag) == 0)
2603 * Dump some info on a returned (via ICMPv6) IPv6 packet.
2607 struct ip6_hdr *ip6;
2610 u_char *cp = (u_char *)ip6, nh;
2613 if (end - (u_char *)ip6 < sizeof(*ip6)) {
2618 hlen = sizeof(*ip6);
2622 while (end - cp >= 8) {
2624 case IPPROTO_HOPOPTS:
2626 hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
2627 nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
2629 case IPPROTO_DSTOPTS:
2631 hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
2632 nh = ((struct ip6_dest *)cp)->ip6d_nxt;
2634 case IPPROTO_FRAGMENT:
2636 hlen = sizeof(struct ip6_frag);
2637 nh = ((struct ip6_frag *)cp)->ip6f_nxt;
2639 case IPPROTO_ROUTING:
2641 hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
2642 nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
2647 hlen = (((struct ah *)cp)->ah_len+2) << 2;
2648 nh = ((struct ah *)cp)->ah_nxt;
2651 case IPPROTO_ICMPV6:
2652 printf("ICMP6: type = %d, code = %d\n",
2659 printf("TCP: from port %u, to port %u (decimal)\n",
2660 (*cp * 256 + *(cp + 1)),
2661 (*(cp + 2) * 256 + *(cp + 3)));
2664 printf("UDP: from port %u, to port %u (decimal)\n",
2665 (*cp * 256 + *(cp + 1)),
2666 (*(cp + 2) * 256 + *(cp + 3)));
2669 printf("Unknown Header(%d)\n", nh);
2673 if ((cp += hlen) >= end)
2695 for (cp = patp; *cp; cp++)
2697 errx(1, "patterns must be specified as hex digits");
2699 "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
2700 &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
2701 &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
2702 &pat[13], &pat[14], &pat[15]);
2707 kk <= MAXDATALEN - (8 + sizeof(struct tv32) + ii);
2709 for (jj = 0; jj < ii; ++jj)
2710 bp[jj + kk] = pat[jj];
2711 if (!(options & F_QUIET)) {
2712 (void)printf("PATTERN: 0x");
2713 for (jj = 0; jj < ii; ++jj)
2714 (void)printf("%02x", bp[jj] & 0xFF);
2720 #ifdef IPSEC_POLICY_IPSEC
2722 setpolicy(so, policy)
2729 return 0; /* ignore */
2731 buf = ipsec_set_policy(policy, strlen(policy));
2733 errx(1, "%s", ipsec_strerror());
2734 if (setsockopt(s, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
2735 ipsec_get_policylen(buf)) < 0)
2736 warnx("Unable to set IPsec policy");
2751 u_int8_t digest[16];
2754 char hbuf[NI_MAXHOST];
2755 struct in6_addr in6;
2757 p = strchr(name, '.');
2759 p = name + strlen(name);
2761 if (l > 63 || l > sizeof(hbuf) - 1)
2762 return NULL; /*label too long*/
2763 strncpy(hbuf, name, l);
2764 hbuf[(int)l] = '\0';
2766 for (q = name; *q; q++) {
2767 if (isupper(*(unsigned char *)q))
2768 *q = tolower(*(unsigned char *)q);
2771 /* generate 8 bytes of pseudo-random value. */
2772 memset(&ctxt, 0, sizeof(ctxt));
2775 MD5Update(&ctxt, &c, sizeof(c));
2776 MD5Update(&ctxt, (unsigned char *)name, l);
2777 MD5Final(digest, &ctxt);
2779 if (inet_pton(AF_INET6, "ff02::2:0000:0000", &in6) != 1)
2780 return NULL; /*XXX*/
2781 bcopy(digest, &in6.s6_addr[12], 4);
2783 if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
2786 return strdup(hbuf);
2792 (void)fprintf(stderr,
2793 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2798 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2802 #ifdef IPV6_USE_MIN_MTU
2806 "[-a addrtype] [-b bufsiz] [-c count] [-g gateway]\n"
2807 " [-h hoplimit] [-I interface] [-i wait] [-l preload]"
2808 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
2812 " [-p pattern] [-S sourceaddr] [-s packetsize] "
2813 "[hops ...] host\n");