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 * 4. Neither the name of the University nor the names of its contributors
50 * may be used to endorse or promote products derived from this software
51 * without specific prior written permission.
53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67 static const char copyright[] =
68 "@(#) Copyright (c) 1989, 1993\n\
69 The Regents of the University of California. All rights reserved.\n";
74 static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
78 #include <sys/cdefs.h>
79 __FBSDID("$FreeBSD$");
82 * Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
83 * measure round-trip-delays and packet loss across network paths.
87 * U. S. Army Ballistic Research Laboratory
91 * Public Domain. Distribution Unlimited.
93 * More statistics could always be gathered.
94 * This program has to run SUID to ROOT to access the ICMP socket.
98 * USE_SIN6_SCOPE_ID assumes that sin6_scope_id has the same semantics
99 * as IPV6_PKTINFO. Some people object it (sin6_scope_id specifies *link*
100 * while IPV6_PKTINFO specifies *interface*. Link is defined as collection of
101 * network attached to 1 or more interfaces)
104 #include <sys/param.h>
106 #include <sys/socket.h>
107 #include <sys/time.h>
110 #include <net/route.h>
112 #include <netinet/in.h>
113 #include <netinet/ip6.h>
114 #include <netinet/icmp6.h>
115 #include <arpa/inet.h>
116 #include <arpa/nameser.h>
134 #include <netipsec/ah.h>
135 #include <netipsec/ipsec.h>
145 #define MAXPACKETLEN 131072
147 #define ICMP6ECHOLEN 8 /* icmp echo header len excluding time */
148 #define ICMP6ECHOTMLEN sizeof(struct tv32)
149 #define ICMP6_NIQLEN (ICMP6ECHOLEN + 8)
150 # define CONTROLLEN 10240 /* ancillary data buffer size RFC3542 20.1 */
151 /* FQDN case, 64 bits of nonce + 32 bits ttl */
152 #define ICMP6_NIRLEN (ICMP6ECHOLEN + 12)
153 #define EXTRA 256 /* for AH and various other headers. weird. */
154 #define DEFDATALEN ICMP6ECHOTMLEN
155 #define MAXDATALEN MAXPACKETLEN - IP6LEN - ICMP6ECHOLEN
156 #define NROUTES 9 /* number of record route slots */
158 #define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
159 #define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
160 #define SET(bit) (A(bit) |= B(bit))
161 #define CLR(bit) (A(bit) &= (~B(bit)))
162 #define TST(bit) (A(bit) & B(bit))
164 #define F_FLOOD 0x0001
165 #define F_INTERVAL 0x0002
166 #define F_PINGFILLED 0x0008
167 #define F_QUIET 0x0010
168 #define F_RROUTE 0x0020
169 #define F_SO_DEBUG 0x0040
170 #define F_VERBOSE 0x0100
172 #ifdef IPSEC_POLICY_IPSEC
173 #define F_POLICY 0x0400
175 #define F_AUTHHDR 0x0200
176 #define F_ENCRYPT 0x0400
177 #endif /*IPSEC_POLICY_IPSEC*/
179 #define F_NODEADDR 0x0800
180 #define F_FQDN 0x1000
181 #define F_INTERFACE 0x2000
182 #define F_SRCADDR 0x4000
183 #define F_HOSTNAME 0x10000
184 #define F_FQDNOLD 0x20000
185 #define F_NIGROUP 0x40000
186 #define F_SUPTYPES 0x80000
187 #define F_NOMINMTU 0x100000
188 #define F_ONCE 0x200000
189 #define F_AUDIBLE 0x400000
190 #define F_MISSED 0x800000
191 #define F_DONTFRAG 0x1000000
192 #define F_NOUSERDATA (F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES)
195 #define IN6LEN sizeof(struct in6_addr)
196 #define SA6LEN sizeof(struct sockaddr_in6)
197 #define DUMMY_PORT 10101
199 #define SIN6(s) ((struct sockaddr_in6 *)(s))
202 * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
203 * number of received sequence numbers we can keep track of. Change 128
204 * to 8192 for complete accuracy...
206 #define MAX_DUP_CHK (8 * 8192)
207 int mx_dup_ck = MAX_DUP_CHK;
208 char rcvd_tbl[MAX_DUP_CHK / 8];
210 struct addrinfo *res = NULL;
211 struct sockaddr_in6 dst; /* who to ping6 */
212 struct sockaddr_in6 src; /* src addr of this packet */
214 int datalen = DEFDATALEN;
215 int s; /* socket file descriptor */
216 u_char outpack[MAXPACKETLEN];
217 char BSPACE = '\b'; /* characters written for flood */
218 char BBELL = '\a'; /* characters written for AUDIBLE */
221 int ident; /* process id to identify our packets */
222 u_int8_t nonce[8]; /* nonce field for node information */
223 int hoplimit = -1; /* hoplimit */
224 int pathmtu = 0; /* path MTU for the destination. 0 = unspec. */
225 u_char *packet = NULL;
227 struct pollfd fdmaskp[1];
229 fd_set *fdmaskp = NULL;
234 long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
235 long npackets; /* max packets to transmit */
236 long nreceived; /* # of packets we got back */
237 long nrepeats; /* number of duplicates */
238 long ntransmitted; /* sequence # for outbound packets = #sent */
239 struct timeval interval = {1, 0}; /* interval between packets */
242 int timing; /* flag to do timing */
243 double tmin = 999999999.0; /* minimum round trip time */
244 double tmax = 0.0; /* maximum round trip time */
245 double tsum = 0.0; /* sum of all times, for doing average */
246 double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
248 /* for node addresses */
251 /* for ancillary data(advanced API) */
252 struct msghdr smsghdr;
253 struct iovec smsgiov;
256 volatile sig_atomic_t seenalrm;
257 volatile sig_atomic_t seenint;
259 volatile sig_atomic_t seeninfo;
262 int main(int, char *[]);
263 void fill(char *, char *);
264 int get_hoplim(struct msghdr *);
265 int get_pathmtu(struct msghdr *);
266 struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
268 void retransmit(void);
270 size_t pingerlen(void);
272 const char *pr_addr(struct sockaddr *, int);
273 void pr_icmph(struct icmp6_hdr *, u_char *);
274 void pr_iph(struct ip6_hdr *);
275 void pr_suptypes(struct icmp6_nodeinfo *, size_t);
276 void pr_nodeaddr(struct icmp6_nodeinfo *, int);
277 int myechoreply(const struct icmp6_hdr *);
278 int mynireply(const struct icmp6_nodeinfo *);
279 char *dnsdecode(const u_char **, const u_char *, const u_char *,
281 void pr_pack(u_char *, int, struct msghdr *);
282 void pr_exthdrs(struct msghdr *);
283 void pr_ip6opt(void *, size_t);
284 void pr_rthdr(void *, size_t);
285 int pr_bitrange(u_int32_t, int, int);
286 void pr_retip(struct ip6_hdr *, u_char *);
288 void tvsub(struct timeval *, struct timeval *);
289 int setpolicy(int, char *);
290 char *nigroup(char *, int);
294 main(int argc, char *argv[])
296 struct itimerval itimer;
297 struct sockaddr_in6 from;
298 #ifndef HAVE_ARC4RANDOM
304 struct timeval timeout, *tv;
306 struct addrinfo hints;
308 int ch, hold, packlen, preload, optval, ret_ga;
309 int nig_oldmcprefix = -1;
311 char *e, *target, *ifname = NULL, *gateway = NULL;
313 struct cmsghdr *scmsgp = NULL;
314 /* For control (ancillary) data received from recvmsg() */
315 struct cmsghdr cm[CONTROLLEN];
316 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
321 struct in6_pktinfo *pktinfo = NULL;
322 #ifdef USE_RFC2292BIS
323 struct ip6_rthdr *rthdr = NULL;
325 #ifdef IPSEC_POLICY_IPSEC
326 char *policy_in = NULL;
327 char *policy_out = NULL;
331 #ifdef IPV6_USE_MIN_MTU
335 /* just to be sure */
336 memset(&smsghdr, 0, sizeof(smsghdr));
337 memset(&smsgiov, 0, sizeof(smsgiov));
340 datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
344 #ifdef IPSEC_POLICY_IPSEC
348 #endif /*IPSEC_POLICY_IPSEC*/
350 while ((ch = getopt(argc, argv,
351 "a:b:c:DdfHg:h:I:i:l:mnNop:qrRS:s:tvwW" ADDOPTS)) != -1) {
358 options &= ~F_NOUSERDATA;
359 options |= F_NODEADDR;
360 for (cp = optarg; *cp != '\0'; cp++) {
363 naflags |= NI_NODEADDR_FLAG_ALL;
367 naflags |= NI_NODEADDR_FLAG_COMPAT;
371 naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
375 naflags |= NI_NODEADDR_FLAG_SITELOCAL;
379 naflags |= NI_NODEADDR_FLAG_GLOBAL;
381 case 'A': /* experimental. not in the spec */
382 #ifdef NI_NODEADDR_FLAG_ANYCAST
383 naflags |= NI_NODEADDR_FLAG_ANYCAST;
387 "-a A is not supported on the platform");
398 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
401 lsockbufsize = strtoul(optarg, &e, 10);
402 sockbufsize = lsockbufsize;
403 if (errno || !*optarg || *e ||
404 sockbufsize != lsockbufsize)
405 errx(1, "invalid socket buffer size");
408 "-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
412 npackets = strtol(optarg, &e, 10);
413 if (npackets <= 0 || *optarg == '\0' || *e != '\0')
415 "illegal number of packets -- %s", optarg);
418 options |= F_DONTFRAG;
421 options |= F_SO_DEBUG;
426 errx(1, "Must be superuser to flood ping");
429 setbuf(stdout, (char *)NULL);
435 options |= F_HOSTNAME;
437 case 'h': /* hoplimit */
438 hoplimit = strtol(optarg, &e, 10);
439 if (*optarg == '\0' || *e != '\0')
440 errx(1, "illegal hoplimit %s", optarg);
441 if (255 < hoplimit || hoplimit < -1)
443 "illegal hoplimit -- %s", optarg);
447 options |= F_INTERFACE;
448 #ifndef USE_SIN6_SCOPE_ID
452 case 'i': /* wait between sending packets */
453 intval = strtod(optarg, &e);
454 if (*optarg == '\0' || *e != '\0')
455 errx(1, "illegal timing interval %s", optarg);
456 if (intval < 1 && getuid()) {
457 errx(1, "%s: only root may use interval < 1s",
460 interval.tv_sec = (long)intval;
462 (long)((intval - interval.tv_sec) * 1000000);
463 if (interval.tv_sec < 0)
464 errx(1, "illegal timing interval %s", optarg);
465 /* less than 1/hz does not make sense */
466 if (interval.tv_sec == 0 && interval.tv_usec < 1) {
467 warnx("too small interval, raised to .000001");
468 interval.tv_usec = 1;
470 options |= F_INTERVAL;
475 errx(1, "Must be superuser to preload");
477 preload = strtol(optarg, &e, 10);
478 if (preload < 0 || *optarg == '\0' || *e != '\0')
479 errx(1, "illegal preload value -- %s", optarg);
482 #ifdef IPV6_USE_MIN_MTU
486 errx(1, "-%c is not supported on this platform", ch);
490 options &= ~F_HOSTNAME;
493 options |= F_NIGROUP;
499 case 'p': /* fill buffer with user pattern */
500 options |= F_PINGFILLED;
501 fill((char *)datap, optarg);
507 options |= F_AUDIBLE;
513 memset(&hints, 0, sizeof(struct addrinfo));
514 hints.ai_flags = AI_NUMERICHOST; /* allow hostname? */
515 hints.ai_family = AF_INET6;
516 hints.ai_socktype = SOCK_RAW;
517 hints.ai_protocol = IPPROTO_ICMPV6;
519 ret_ga = getaddrinfo(optarg, NULL, &hints, &res);
521 errx(1, "invalid source address: %s",
522 gai_strerror(ret_ga));
525 * res->ai_family must be AF_INET6 and res->ai_addrlen
526 * must be sizeof(src).
528 memcpy(&src, res->ai_addr, res->ai_addrlen);
529 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], nig_oldmcprefix);
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;
1086 struct iovec iov[2];
1088 /* signal handling */
1090 /* last packet sent, timeout reached? */
1091 if (npackets && ntransmitted >= npackets)
1110 if (options & F_FLOOD) {
1116 timeout.tv_usec = 10000;
1128 fdmaskp[0].events = POLLIN;
1129 cc = poll(fdmaskp, 1, timeout);
1131 memset(fdmaskp, 0, fdmasks);
1133 cc = select(s + 1, fdmaskp, NULL, NULL, tv);
1136 if (errno != EINTR) {
1148 m.msg_name = (caddr_t)&from;
1149 m.msg_namelen = sizeof(from);
1150 memset(&iov, 0, sizeof(iov));
1151 iov[0].iov_base = (caddr_t)packet;
1152 iov[0].iov_len = packlen;
1155 memset(cm, 0, CONTROLLEN);
1156 m.msg_control = (void *)cm;
1157 m.msg_controllen = CONTROLLEN;
1159 cc = recvmsg(s, &m, 0);
1161 if (errno != EINTR) {
1166 } else if (cc == 0) {
1170 * receive control messages only. Process the
1171 * exceptions (currently the only possiblity is
1172 * a path MTU notification.)
1174 if ((mtu = get_pathmtu(&m)) > 0) {
1175 if ((options & F_VERBOSE) != 0) {
1176 printf("new path MTU (%d) is "
1183 * an ICMPv6 message (probably an echoreply) arrived.
1185 pr_pack(packet, cc, &m);
1187 if (((options & F_ONCE) != 0 && nreceived > 0) ||
1188 (npackets > 0 && nreceived >= npackets))
1190 if (ntransmitted - nreceived - 1 > nmissedmax) {
1191 nmissedmax = ntransmitted - nreceived - 1;
1192 if (options & F_MISSED)
1193 (void)write(STDOUT_FILENO, &BBELL, 1);
1209 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);
1406 myechoreply(const struct icmp6_hdr *icp)
1408 if (ntohs(icp->icmp6_id) == ident)
1415 mynireply(const struct icmp6_nodeinfo *nip)
1417 if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
1418 nonce + sizeof(u_int16_t),
1419 sizeof(nonce) - sizeof(u_int16_t)) == 0)
1426 dnsdecode(const u_char **sp, const u_char *ep, const u_char *base, char *buf,
1428 /*base for compressed name*/
1432 char cresult[MAXDNAME + 1];
1443 if (i == 0 || cp != *sp) {
1444 if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
1445 return NULL; /*result overrun*/
1451 if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
1452 /* DNS compression */
1456 comp = base + (i & 0x3f);
1457 if (dnsdecode(&comp, cp, base, cresult,
1458 sizeof(cresult)) == NULL)
1460 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1461 return NULL; /*result overrun*/
1463 } else if ((i & 0x3f) == i) {
1465 return NULL; /*source overrun*/
1466 while (i-- > 0 && cp < ep) {
1467 l = snprintf(cresult, sizeof(cresult),
1468 isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
1469 if (l >= sizeof(cresult) || l < 0)
1471 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1472 return NULL; /*result overrun*/
1476 return NULL; /*invalid label*/
1479 return NULL; /*not terminated*/
1487 * Print out the packet, if it came from us. This logic is necessary
1488 * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
1489 * which arrive ('tis only fair). This permits multiple copies of this
1490 * program to be run without having intermingled output (or statistics!).
1493 pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
1495 #define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
1496 struct icmp6_hdr *icp;
1497 struct icmp6_nodeinfo *ni;
1500 struct sockaddr *from;
1502 u_char *cp = NULL, *dp, *end = buf + cc;
1503 struct in6_pktinfo *pktinfo = NULL;
1504 struct timeval tv, tp;
1506 double triptime = 0;
1511 char dnsname[MAXDNAME + 1];
1513 (void)gettimeofday(&tv, NULL);
1515 if (!mhdr || !mhdr->msg_name ||
1516 mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
1517 ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
1518 if (options & F_VERBOSE)
1519 warnx("invalid peername");
1522 from = (struct sockaddr *)mhdr->msg_name;
1523 fromlen = mhdr->msg_namelen;
1524 if (cc < sizeof(struct icmp6_hdr)) {
1525 if (options & F_VERBOSE)
1526 warnx("packet too short (%d bytes) from %s", cc,
1527 pr_addr(from, fromlen));
1530 if (((mhdr->msg_flags & MSG_CTRUNC) != 0) &&
1531 (options & F_VERBOSE) != 0)
1532 warnx("some control data discarded, insufficient buffer size");
1533 icp = (struct icmp6_hdr *)buf;
1534 ni = (struct icmp6_nodeinfo *)buf;
1537 if ((hoplim = get_hoplim(mhdr)) == -1) {
1538 warnx("failed to get receiving hop limit");
1541 if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
1542 warnx("failed to get receiving packet information");
1546 if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
1547 seq = ntohs(icp->icmp6_seq);
1550 tpp = (struct tv32 *)(icp + 1);
1551 tp.tv_sec = ntohl(tpp->tv32_sec);
1552 tp.tv_usec = ntohl(tpp->tv32_usec);
1554 triptime = ((double)tv.tv_sec) * 1000.0 +
1555 ((double)tv.tv_usec) / 1000.0;
1557 tsumsq += triptime * triptime;
1558 if (triptime < tmin)
1560 if (triptime > tmax)
1564 if (TST(seq % mx_dup_ck)) {
1569 SET(seq % mx_dup_ck);
1573 if (options & F_QUIET)
1576 if (options & F_FLOOD)
1577 (void)write(STDOUT_FILENO, &BSPACE, 1);
1579 if (options & F_AUDIBLE)
1580 (void)write(STDOUT_FILENO, &BBELL, 1);
1581 (void)printf("%d bytes from %s, icmp_seq=%u", cc,
1582 pr_addr(from, fromlen), seq);
1583 (void)printf(" hlim=%d", hoplim);
1584 if ((options & F_VERBOSE) != 0) {
1585 struct sockaddr_in6 dstsa;
1587 memset(&dstsa, 0, sizeof(dstsa));
1588 dstsa.sin6_family = AF_INET6;
1589 dstsa.sin6_len = sizeof(dstsa);
1590 dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
1591 dstsa.sin6_addr = pktinfo->ipi6_addr;
1592 (void)printf(" dst=%s",
1593 pr_addr((struct sockaddr *)&dstsa,
1597 (void)printf(" time=%.3f ms", triptime);
1599 (void)printf("(DUP!)");
1600 /* check the data */
1601 cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1602 dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1603 for (i = 8; cp < end; ++i, ++cp, ++dp) {
1605 (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
1610 } else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
1611 seq = ntohs(*(u_int16_t *)ni->icmp6_ni_nonce);
1613 if (TST(seq % mx_dup_ck)) {
1618 SET(seq % mx_dup_ck);
1622 if (options & F_QUIET)
1625 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1627 switch (ntohs(ni->ni_code)) {
1628 case ICMP6_NI_SUCCESS:
1630 case ICMP6_NI_REFUSED:
1631 printf("refused, type 0x%x", ntohs(ni->ni_type));
1633 case ICMP6_NI_UNKNOWN:
1634 printf("unknown, type 0x%x", ntohs(ni->ni_type));
1637 printf("unknown code 0x%x, type 0x%x",
1638 ntohs(ni->ni_code), ntohs(ni->ni_type));
1642 switch (ntohs(ni->ni_qtype)) {
1644 printf("NodeInfo NOOP");
1646 case NI_QTYPE_SUPTYPES:
1647 pr_suptypes(ni, end - (u_char *)ni);
1649 case NI_QTYPE_NODEADDR:
1650 pr_nodeaddr(ni, end - (u_char *)ni);
1653 default: /* XXX: for backward compatibility */
1654 cp = (u_char *)ni + ICMP6_NIRLEN;
1655 if (buf[off + ICMP6_NIRLEN] ==
1656 cc - off - ICMP6_NIRLEN - 1)
1661 cp++; /* skip length */
1663 safeputc(*cp & 0xff);
1669 if (dnsdecode((const u_char **)&cp, end,
1670 (const u_char *)(ni + 1), dnsname,
1671 sizeof(dnsname)) == NULL) {
1676 * name-lookup special handling for
1679 if (cp + 1 <= end && !*cp &&
1680 strlen(dnsname) > 0) {
1681 dnsname[strlen(dnsname) - 1] = '\0';
1684 printf("%s%s", i > 0 ? "," : "",
1688 if (options & F_VERBOSE) {
1692 (void)printf(" ("); /*)*/
1694 switch (ni->ni_code) {
1695 case ICMP6_NI_REFUSED:
1696 (void)printf("refused");
1699 case ICMP6_NI_UNKNOWN:
1700 (void)printf("unknown qtype");
1705 if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
1706 /* case of refusion, unknown */
1711 ttl = (int32_t)ntohl(*(u_long *)&buf[off+ICMP6ECHOLEN+8]);
1714 if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
1715 (void)printf("TTL=%d:meaningless",
1719 (void)printf("TTL=%d:invalid",
1722 (void)printf("TTL=%d", ttl);
1732 cp = (u_char *)ni + ICMP6_NIRLEN;
1741 if (buf[off + ICMP6_NIRLEN] !=
1742 cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
1745 (void)printf("invalid namelen:%d/%lu",
1746 buf[off + ICMP6_NIRLEN],
1747 (u_long)cc - off - ICMP6_NIRLEN - 1);
1757 /* We've got something other than an ECHOREPLY */
1758 if (!(options & F_VERBOSE))
1760 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1764 if (!(options & F_FLOOD)) {
1765 (void)putchar('\n');
1766 if (options & F_VERBOSE)
1768 (void)fflush(stdout);
1774 pr_exthdrs(struct msghdr *mhdr)
1781 bufp = mhdr->msg_control;
1782 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
1783 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
1784 if (cm->cmsg_level != IPPROTO_IPV6)
1787 bufsize = CONTROLLEN - ((caddr_t)CMSG_DATA(cm) - (caddr_t)bufp);
1790 switch (cm->cmsg_type) {
1792 printf(" HbH Options: ");
1793 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1796 #ifdef IPV6_RTHDRDSTOPTS
1797 case IPV6_RTHDRDSTOPTS:
1799 printf(" Dst Options: ");
1800 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1803 printf(" Routing: ");
1804 pr_rthdr(CMSG_DATA(cm), (size_t)bufsize);
1810 #ifdef USE_RFC2292BIS
1812 pr_ip6opt(void *extbuf, size_t bufsize)
1814 struct ip6_hbh *ext;
1817 socklen_t extlen, len;
1823 ext = (struct ip6_hbh *)extbuf;
1824 extlen = (ext->ip6h_len + 1) * 8;
1825 printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
1826 (unsigned int)ext->ip6h_len, (unsigned long)extlen);
1829 * Bounds checking on the ancillary data buffer:
1830 * subtract the size of a cmsg structure from the buffer size.
1832 if (bufsize < (extlen + CMSG_SPACE(0))) {
1833 extlen = bufsize - CMSG_SPACE(0);
1834 warnx("options truncated, showing only %u (total=%u)",
1835 (unsigned int)(extlen / 8 - 1),
1836 (unsigned int)(ext->ip6h_len));
1841 currentlen = inet6_opt_next(extbuf, extlen, currentlen,
1842 &type, &len, &databuf);
1843 if (currentlen == -1)
1847 * Note that inet6_opt_next automatically skips any padding
1852 offset = inet6_opt_get_val(databuf, offset,
1853 &value4, sizeof(value4));
1854 printf(" Jumbo Payload Opt: Length %u\n",
1855 (u_int32_t)ntohl(value4));
1857 case IP6OPT_ROUTER_ALERT:
1859 offset = inet6_opt_get_val(databuf, offset,
1860 &value2, sizeof(value2));
1861 printf(" Router Alert Opt: Type %u\n",
1865 printf(" Received Opt %u len %lu\n",
1866 type, (unsigned long)len);
1872 #else /* !USE_RFC2292BIS */
1875 pr_ip6opt(void *extbuf, size_t bufsize __unused)
1880 #endif /* USE_RFC2292BIS */
1882 #ifdef USE_RFC2292BIS
1884 pr_rthdr(void *extbuf, size_t bufsize)
1886 struct in6_addr *in6;
1887 char ntopbuf[INET6_ADDRSTRLEN];
1888 struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
1889 int i, segments, origsegs, rthsize, size0, size1;
1891 /* print fixed part of the header */
1892 printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
1893 rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
1894 if ((segments = inet6_rth_segments(extbuf)) >= 0) {
1895 printf("%d segments, ", segments);
1896 printf("%d left\n", rh->ip6r_segleft);
1898 printf("segments unknown, ");
1899 printf("%d left\n", rh->ip6r_segleft);
1904 * Bounds checking on the ancillary data buffer. When calculating
1905 * the number of items to show keep in mind:
1906 * - The size of the cmsg structure
1907 * - The size of one segment (the size of a Type 0 routing header)
1908 * - When dividing add a fudge factor of one in case the
1909 * dividend is not evenly divisible by the divisor
1911 rthsize = (rh->ip6r_len + 1) * 8;
1912 if (bufsize < (rthsize + CMSG_SPACE(0))) {
1913 origsegs = segments;
1914 size0 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 0);
1915 size1 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 1);
1916 segments -= (rthsize - (bufsize - CMSG_SPACE(0))) /
1917 (size1 - size0) + 1;
1918 warnx("segments truncated, showing only %d (total=%d)",
1919 segments, origsegs);
1922 for (i = 0; i < segments; i++) {
1923 in6 = inet6_rth_getaddr(extbuf, i);
1925 printf(" [%d]<NULL>\n", i);
1927 if (!inet_ntop(AF_INET6, in6, ntopbuf,
1929 strlcpy(ntopbuf, "?", sizeof(ntopbuf));
1930 printf(" [%d]%s\n", i, ntopbuf);
1938 #else /* !USE_RFC2292BIS */
1941 pr_rthdr(void *extbuf, size_t bufsize __unused)
1946 #endif /* USE_RFC2292BIS */
1949 pr_bitrange(u_int32_t v, int soff, int ii)
1956 /* shift till we have 0x01 */
1957 if ((v & 0x01) == 0) {
1959 printf("-%u", soff + off - 1);
1970 case 0x04: case 0x0c:
1981 /* we have 0x01 with us */
1982 for (i = 0; i < 32 - off; i++) {
1983 if ((v & (0x01 << i)) == 0)
1987 printf(" %u", soff + off);
1995 pr_suptypes(struct icmp6_nodeinfo *ni, size_t nilen)
1996 /* ni->qtype must be SUPTYPES */
2000 const u_char *cp, *end;
2003 u_int16_t words; /*32bit count*/
2006 #define MAXQTYPES (1 << 16)
2010 cp = (u_char *)(ni + 1);
2011 end = ((u_char *)ni) + nilen;
2015 printf("NodeInfo Supported Qtypes");
2016 if (options & F_VERBOSE) {
2017 if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
2018 printf(", compressed bitmap");
2020 printf(", raw bitmap");
2024 clen = (size_t)(end - cp);
2025 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
2026 if (clen == 0 || clen > MAXQTYPES / 8 ||
2032 if (clen < sizeof(cbit) || clen % sizeof(v))
2034 memcpy(&cbit, cp, sizeof(cbit));
2035 if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
2039 clen = ntohs(cbit.words) * sizeof(v);
2040 if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
2045 for (off = 0; off < clen; off += sizeof(v)) {
2046 memcpy(&v, cp + off, sizeof(v));
2047 v = (u_int32_t)ntohl(v);
2048 b = pr_bitrange(v, (int)(cur + off * 8), b);
2050 /* flush the remaining bits */
2051 b = pr_bitrange(0, (int)(cur + off * 8), b);
2055 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
2056 cur += ntohs(cbit.skip) * 32;
2061 pr_nodeaddr(struct icmp6_nodeinfo *ni, int nilen)
2062 /* ni->qtype must be NODEADDR */
2064 u_char *cp = (u_char *)(ni + 1);
2065 char ntop_buf[INET6_ADDRSTRLEN];
2068 nilen -= sizeof(struct icmp6_nodeinfo);
2070 if (options & F_VERBOSE) {
2071 switch (ni->ni_code) {
2072 case ICMP6_NI_REFUSED:
2073 (void)printf("refused");
2075 case ICMP6_NI_UNKNOWN:
2076 (void)printf("unknown qtype");
2079 if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
2080 (void)printf(" truncated");
2084 printf(" no address\n");
2087 * In icmp-name-lookups 05 and later, TTL of each returned address
2088 * is contained in the resposne. We try to detect the version
2089 * by the length of the data, but note that the detection algorithm
2090 * is incomplete. We assume the latest draft by default.
2092 if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
2098 /* XXX: alignment? */
2099 ttl = (u_int32_t)ntohl(*(u_int32_t *)cp);
2100 cp += sizeof(u_int32_t);
2101 nilen -= sizeof(u_int32_t);
2104 if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
2106 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2107 printf(" %s", ntop_buf);
2109 if (ttl == 0xffffffff) {
2111 * XXX: can this convention be applied to all
2112 * type of TTL (i.e. non-ND TTL)?
2114 printf("(TTL=infty)");
2117 printf("(TTL=%u)", ttl);
2121 nilen -= sizeof(struct in6_addr);
2122 cp += sizeof(struct in6_addr);
2127 get_hoplim(struct msghdr *mhdr)
2131 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2132 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2133 if (cm->cmsg_len == 0)
2136 if (cm->cmsg_level == IPPROTO_IPV6 &&
2137 cm->cmsg_type == IPV6_HOPLIMIT &&
2138 cm->cmsg_len == CMSG_LEN(sizeof(int)))
2139 return(*(int *)CMSG_DATA(cm));
2145 struct in6_pktinfo *
2146 get_rcvpktinfo(struct msghdr *mhdr)
2150 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2151 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2152 if (cm->cmsg_len == 0)
2155 if (cm->cmsg_level == IPPROTO_IPV6 &&
2156 cm->cmsg_type == IPV6_PKTINFO &&
2157 cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo)))
2158 return((struct in6_pktinfo *)CMSG_DATA(cm));
2165 get_pathmtu(struct msghdr *mhdr)
2167 #ifdef IPV6_RECVPATHMTU
2169 struct ip6_mtuinfo *mtuctl = NULL;
2171 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2172 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2173 if (cm->cmsg_len == 0)
2176 if (cm->cmsg_level == IPPROTO_IPV6 &&
2177 cm->cmsg_type == IPV6_PATHMTU &&
2178 cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
2179 mtuctl = (struct ip6_mtuinfo *)CMSG_DATA(cm);
2182 * If the notified destination is different from
2183 * the one we are pinging, just ignore the info.
2184 * We check the scope ID only when both notified value
2185 * and our own value have non-0 values, because we may
2186 * have used the default scope zone ID for sending,
2187 * in which case the scope ID value is 0.
2189 if (!IN6_ARE_ADDR_EQUAL(&mtuctl->ip6m_addr.sin6_addr,
2191 (mtuctl->ip6m_addr.sin6_scope_id &&
2192 dst.sin6_scope_id &&
2193 mtuctl->ip6m_addr.sin6_scope_id !=
2194 dst.sin6_scope_id)) {
2195 if ((options & F_VERBOSE) != 0) {
2196 printf("path MTU for %s is notified. "
2198 pr_addr((struct sockaddr *)&mtuctl->ip6m_addr,
2199 sizeof(mtuctl->ip6m_addr)));
2205 * Ignore an invalid MTU. XXX: can we just believe
2208 if (mtuctl->ip6m_mtu < IPV6_MMTU)
2211 /* notification for our destination. return the MTU. */
2212 return((int)mtuctl->ip6m_mtu);
2221 * Subtract 2 timeval structs: out = out - in. Out is assumed to
2225 tvsub(struct timeval *out, struct timeval *in)
2227 if ((out->tv_usec -= in->tv_usec) < 0) {
2229 out->tv_usec += 1000000;
2231 out->tv_sec -= in->tv_sec;
2240 onint(int notused __unused)
2255 (void)signal(SIGINT, SIG_DFL);
2256 (void)kill(getpid(), SIGINT);
2264 * Print out statistics.
2270 (void)printf("\n--- %s ping6 statistics ---\n", hostname);
2271 (void)printf("%ld packets transmitted, ", ntransmitted);
2272 (void)printf("%ld packets received, ", nreceived);
2274 (void)printf("+%ld duplicates, ", nrepeats);
2276 if (nreceived > ntransmitted)
2277 (void)printf("-- somebody's duplicating packets!");
2279 (void)printf("%.1f%% packet loss",
2280 ((((double)ntransmitted - nreceived) * 100.0) /
2283 (void)putchar('\n');
2284 if (nreceived && timing) {
2285 /* Only display average to microseconds */
2286 double num = nreceived + nrepeats;
2287 double avg = tsum / num;
2288 double dev = sqrt(tsumsq / num - avg * avg);
2290 "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
2291 tmin, avg, tmax, dev);
2292 (void)fflush(stdout);
2294 (void)fflush(stdout);
2298 static const char *niqcode[] = {
2300 "DNS label", /*or empty*/
2305 static const char *nircode[] = {
2306 "Success", "Refused", "Unknown",
2312 * Print a descriptive string about an ICMP header.
2315 pr_icmph(struct icmp6_hdr *icp, u_char *end)
2317 char ntop_buf[INET6_ADDRSTRLEN];
2318 struct nd_redirect *red;
2319 struct icmp6_nodeinfo *ni;
2320 char dnsname[MAXDNAME + 1];
2324 switch (icp->icmp6_type) {
2325 case ICMP6_DST_UNREACH:
2326 switch (icp->icmp6_code) {
2327 case ICMP6_DST_UNREACH_NOROUTE:
2328 (void)printf("No Route to Destination\n");
2330 case ICMP6_DST_UNREACH_ADMIN:
2331 (void)printf("Destination Administratively "
2334 case ICMP6_DST_UNREACH_BEYONDSCOPE:
2335 (void)printf("Destination Unreachable Beyond Scope\n");
2337 case ICMP6_DST_UNREACH_ADDR:
2338 (void)printf("Destination Host Unreachable\n");
2340 case ICMP6_DST_UNREACH_NOPORT:
2341 (void)printf("Destination Port Unreachable\n");
2344 (void)printf("Destination Unreachable, Bad Code: %d\n",
2348 /* Print returned IP header information */
2349 pr_retip((struct ip6_hdr *)(icp + 1), end);
2351 case ICMP6_PACKET_TOO_BIG:
2352 (void)printf("Packet too big mtu = %d\n",
2353 (int)ntohl(icp->icmp6_mtu));
2354 pr_retip((struct ip6_hdr *)(icp + 1), end);
2356 case ICMP6_TIME_EXCEEDED:
2357 switch (icp->icmp6_code) {
2358 case ICMP6_TIME_EXCEED_TRANSIT:
2359 (void)printf("Time to live exceeded\n");
2361 case ICMP6_TIME_EXCEED_REASSEMBLY:
2362 (void)printf("Frag reassembly time exceeded\n");
2365 (void)printf("Time exceeded, Bad Code: %d\n",
2369 pr_retip((struct ip6_hdr *)(icp + 1), end);
2371 case ICMP6_PARAM_PROB:
2372 (void)printf("Parameter problem: ");
2373 switch (icp->icmp6_code) {
2374 case ICMP6_PARAMPROB_HEADER:
2375 (void)printf("Erroneous Header ");
2377 case ICMP6_PARAMPROB_NEXTHEADER:
2378 (void)printf("Unknown Nextheader ");
2380 case ICMP6_PARAMPROB_OPTION:
2381 (void)printf("Unrecognized Option ");
2384 (void)printf("Bad code(%d) ", icp->icmp6_code);
2387 (void)printf("pointer = 0x%02x\n",
2388 (u_int32_t)ntohl(icp->icmp6_pptr));
2389 pr_retip((struct ip6_hdr *)(icp + 1), end);
2391 case ICMP6_ECHO_REQUEST:
2392 (void)printf("Echo Request");
2393 /* XXX ID + Seq + Data */
2395 case ICMP6_ECHO_REPLY:
2396 (void)printf("Echo Reply");
2397 /* XXX ID + Seq + Data */
2399 case ICMP6_MEMBERSHIP_QUERY:
2400 (void)printf("Listener Query");
2402 case ICMP6_MEMBERSHIP_REPORT:
2403 (void)printf("Listener Report");
2405 case ICMP6_MEMBERSHIP_REDUCTION:
2406 (void)printf("Listener Done");
2408 case ND_ROUTER_SOLICIT:
2409 (void)printf("Router Solicitation");
2411 case ND_ROUTER_ADVERT:
2412 (void)printf("Router Advertisement");
2414 case ND_NEIGHBOR_SOLICIT:
2415 (void)printf("Neighbor Solicitation");
2417 case ND_NEIGHBOR_ADVERT:
2418 (void)printf("Neighbor Advertisement");
2421 red = (struct nd_redirect *)icp;
2422 (void)printf("Redirect\n");
2423 if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
2425 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2426 (void)printf("Destination: %s", ntop_buf);
2427 if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
2429 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2430 (void)printf(" New Target: %s", ntop_buf);
2432 case ICMP6_NI_QUERY:
2433 (void)printf("Node Information Query");
2434 /* XXX ID + Seq + Data */
2435 ni = (struct icmp6_nodeinfo *)icp;
2436 l = end - (u_char *)(ni + 1);
2438 switch (ntohs(ni->ni_qtype)) {
2440 (void)printf("NOOP");
2442 case NI_QTYPE_SUPTYPES:
2443 (void)printf("Supported qtypes");
2446 (void)printf("DNS name");
2448 case NI_QTYPE_NODEADDR:
2449 (void)printf("nodeaddr");
2451 case NI_QTYPE_IPV4ADDR:
2452 (void)printf("IPv4 nodeaddr");
2455 (void)printf("unknown qtype");
2458 if (options & F_VERBOSE) {
2459 switch (ni->ni_code) {
2460 case ICMP6_NI_SUBJ_IPV6:
2461 if (l == sizeof(struct in6_addr) &&
2462 inet_ntop(AF_INET6, ni + 1, ntop_buf,
2463 sizeof(ntop_buf)) != NULL) {
2464 (void)printf(", subject=%s(%s)",
2465 niqcode[ni->ni_code], ntop_buf);
2468 /* backward compat to -W */
2469 (void)printf(", oldfqdn");
2471 (void)printf(", invalid");
2475 case ICMP6_NI_SUBJ_FQDN:
2476 if (end == (u_char *)(ni + 1)) {
2477 (void)printf(", no subject");
2480 printf(", subject=%s", niqcode[ni->ni_code]);
2481 cp = (const u_char *)(ni + 1);
2482 if (dnsdecode(&cp, end, NULL, dnsname,
2483 sizeof(dnsname)) != NULL)
2484 printf("(%s)", dnsname);
2486 printf("(invalid)");
2488 case ICMP6_NI_SUBJ_IPV4:
2489 if (l == sizeof(struct in_addr) &&
2490 inet_ntop(AF_INET, ni + 1, ntop_buf,
2491 sizeof(ntop_buf)) != NULL) {
2492 (void)printf(", subject=%s(%s)",
2493 niqcode[ni->ni_code], ntop_buf);
2495 (void)printf(", invalid");
2498 (void)printf(", invalid");
2503 case ICMP6_NI_REPLY:
2504 (void)printf("Node Information Reply");
2505 /* XXX ID + Seq + Data */
2506 ni = (struct icmp6_nodeinfo *)icp;
2508 switch (ntohs(ni->ni_qtype)) {
2510 (void)printf("NOOP");
2512 case NI_QTYPE_SUPTYPES:
2513 (void)printf("Supported qtypes");
2516 (void)printf("DNS name");
2518 case NI_QTYPE_NODEADDR:
2519 (void)printf("nodeaddr");
2521 case NI_QTYPE_IPV4ADDR:
2522 (void)printf("IPv4 nodeaddr");
2525 (void)printf("unknown qtype");
2528 if (options & F_VERBOSE) {
2529 if (ni->ni_code > sizeof(nircode) / sizeof(nircode[0]))
2530 printf(", invalid");
2532 printf(", %s", nircode[ni->ni_code]);
2536 (void)printf("Bad ICMP type: %d", icp->icmp6_type);
2542 * Print an IP6 header.
2545 pr_iph(struct ip6_hdr *ip6)
2547 u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
2549 char ntop_buf[INET6_ADDRSTRLEN];
2551 tc = *(&ip6->ip6_vfc + 1); /* XXX */
2552 tc = (tc >> 4) & 0x0f;
2553 tc |= (ip6->ip6_vfc << 4);
2555 printf("Vr TC Flow Plen Nxt Hlim\n");
2556 printf(" %1x %02x %05x %04x %02x %02x\n",
2557 (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
2558 ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
2559 if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
2560 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2561 printf("%s->", ntop_buf);
2562 if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
2563 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2564 printf("%s\n", ntop_buf);
2569 * Return an ascii host address as a dotted quad and optionally with
2573 pr_addr(struct sockaddr *addr, int addrlen)
2575 static char buf[NI_MAXHOST];
2578 if ((options & F_HOSTNAME) == 0)
2579 flag |= NI_NUMERICHOST;
2581 if (getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0, flag) == 0)
2589 * Dump some info on a returned (via ICMPv6) IPv6 packet.
2592 pr_retip(struct ip6_hdr *ip6, u_char *end)
2594 u_char *cp = (u_char *)ip6, nh;
2597 if (end - (u_char *)ip6 < sizeof(*ip6)) {
2602 hlen = sizeof(*ip6);
2606 while (end - cp >= 8) {
2608 case IPPROTO_HOPOPTS:
2610 hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
2611 nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
2613 case IPPROTO_DSTOPTS:
2615 hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
2616 nh = ((struct ip6_dest *)cp)->ip6d_nxt;
2618 case IPPROTO_FRAGMENT:
2620 hlen = sizeof(struct ip6_frag);
2621 nh = ((struct ip6_frag *)cp)->ip6f_nxt;
2623 case IPPROTO_ROUTING:
2625 hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
2626 nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
2631 hlen = (((struct ah *)cp)->ah_len+2) << 2;
2632 nh = ((struct ah *)cp)->ah_nxt;
2635 case IPPROTO_ICMPV6:
2636 printf("ICMP6: type = %d, code = %d\n",
2643 printf("TCP: from port %u, to port %u (decimal)\n",
2644 (*cp * 256 + *(cp + 1)),
2645 (*(cp + 2) * 256 + *(cp + 3)));
2648 printf("UDP: from port %u, to port %u (decimal)\n",
2649 (*cp * 256 + *(cp + 1)),
2650 (*(cp + 2) * 256 + *(cp + 3)));
2653 printf("Unknown Header(%d)\n", nh);
2657 if ((cp += hlen) >= end)
2672 fill(char *bp, char *patp)
2678 for (cp = patp; *cp; cp++)
2680 errx(1, "patterns must be specified as hex digits");
2682 "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
2683 &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
2684 &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
2685 &pat[13], &pat[14], &pat[15]);
2690 kk <= MAXDATALEN - (8 + sizeof(struct tv32) + ii);
2692 for (jj = 0; jj < ii; ++jj)
2693 bp[jj + kk] = pat[jj];
2694 if (!(options & F_QUIET)) {
2695 (void)printf("PATTERN: 0x");
2696 for (jj = 0; jj < ii; ++jj)
2697 (void)printf("%02x", bp[jj] & 0xFF);
2703 #ifdef IPSEC_POLICY_IPSEC
2705 setpolicy(int so __unused, char *policy)
2710 return 0; /* ignore */
2712 buf = ipsec_set_policy(policy, strlen(policy));
2714 errx(1, "%s", ipsec_strerror());
2715 if (setsockopt(s, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
2716 ipsec_get_policylen(buf)) < 0)
2717 warnx("Unable to set IPsec policy");
2726 nigroup(char *name, int nig_oldmcprefix)
2731 u_int8_t digest[16];
2734 char hbuf[NI_MAXHOST];
2735 struct in6_addr in6;
2738 p = strchr(name, '.');
2740 p = name + strlen(name);
2742 if (l > 63 || l > sizeof(hbuf) - 1)
2743 return NULL; /*label too long*/
2744 strncpy(hbuf, name, l);
2745 hbuf[(int)l] = '\0';
2747 for (q = name; *q; q++) {
2748 if (isupper(*(unsigned char *)q))
2749 *q = tolower(*(unsigned char *)q);
2752 /* generate 16 bytes of pseudo-random value. */
2753 memset(&ctxt, 0, sizeof(ctxt));
2756 MD5Update(&ctxt, &c, sizeof(c));
2757 MD5Update(&ctxt, (unsigned char *)name, l);
2758 MD5Final(digest, &ctxt);
2760 if (nig_oldmcprefix) {
2761 /* draft-ietf-ipngwg-icmp-name-lookup */
2762 valid = inet_pton(AF_INET6, "ff02::2:0000:0000", &in6);
2765 valid = inet_pton(AF_INET6, "ff02::2:ff00:0000", &in6);
2768 return NULL; /*XXX*/
2770 if (nig_oldmcprefix) {
2771 /* draft-ietf-ipngwg-icmp-name-lookup */
2772 bcopy(digest, &in6.s6_addr[12], 4);
2775 bcopy(digest, &in6.s6_addr[13], 3);
2778 if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
2781 return strdup(hbuf);
2787 (void)fprintf(stderr,
2788 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2793 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2797 #ifdef IPV6_USE_MIN_MTU
2801 "[-a addrtype] [-b bufsiz] [-c count] [-g gateway]\n"
2802 " [-h hoplimit] [-I interface] [-i wait] [-l preload]"
2803 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
2807 " [-p pattern] [-S sourceaddr] [-s packetsize] "
2808 "[hops ...] host\n");