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 */
707 if (seteuid(getuid()) != 0)
708 err(1, "seteuid() failed");
709 if (setuid(getuid()) != 0)
710 err(1, "setuid() failed");
712 if ((options & F_FLOOD) && (options & F_INTERVAL))
713 errx(1, "-f and -i incompatible options");
715 if ((options & F_NOUSERDATA) == 0) {
716 if (datalen >= sizeof(struct tv32)) {
717 /* we can time transfer */
721 /* in F_VERBOSE case, we may get non-echoreply packets*/
722 if (options & F_VERBOSE)
723 packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
725 packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
727 /* suppress timing for node information query */
730 packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
733 if (!(packet = (u_char *)malloc((u_int)packlen)))
734 err(1, "Unable to allocate packet");
735 if (!(options & F_PINGFILLED))
736 for (i = ICMP6ECHOLEN; i < packlen; ++i)
739 ident = getpid() & 0xFFFF;
740 #ifndef HAVE_ARC4RANDOM
741 gettimeofday(&seed, NULL);
742 srand((unsigned int)(seed.tv_sec ^ seed.tv_usec ^ (long)ident));
743 memset(nonce, 0, sizeof(nonce));
744 for (i = 0; i < sizeof(nonce); i += sizeof(int))
745 *((int *)&nonce[i]) = rand();
747 memset(nonce, 0, sizeof(nonce));
748 for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t))
749 *((u_int32_t *)&nonce[i]) = arc4random();
752 if (options & F_DONTFRAG)
753 if (setsockopt(s, IPPROTO_IPV6, IPV6_DONTFRAG,
754 &optval, sizeof(optval)) == -1)
755 err(1, "IPV6_DONTFRAG");
758 if (options & F_SO_DEBUG)
759 (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
761 optval = IPV6_DEFHLIM;
762 if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
763 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
764 &optval, sizeof(optval)) == -1)
765 err(1, "IPV6_MULTICAST_HOPS");
766 #ifdef IPV6_USE_MIN_MTU
768 optval = mflag > 1 ? 0 : 1;
770 if (setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
771 &optval, sizeof(optval)) == -1)
772 err(1, "setsockopt(IPV6_USE_MIN_MTU)");
774 #ifdef IPV6_RECVPATHMTU
777 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPATHMTU,
778 &optval, sizeof(optval)) == -1)
779 err(1, "setsockopt(IPV6_RECVPATHMTU)");
781 #endif /* IPV6_RECVPATHMTU */
782 #endif /* IPV6_USE_MIN_MTU */
785 #ifdef IPSEC_POLICY_IPSEC
786 if (options & F_POLICY) {
787 if (setpolicy(s, policy_in) < 0)
788 errx(1, "%s", ipsec_strerror());
789 if (setpolicy(s, policy_out) < 0)
790 errx(1, "%s", ipsec_strerror());
793 if (options & F_AUTHHDR) {
794 optval = IPSEC_LEVEL_REQUIRE;
795 #ifdef IPV6_AUTH_TRANS_LEVEL
796 if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
797 &optval, sizeof(optval)) == -1)
798 err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
800 if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
801 &optval, sizeof(optval)) == -1)
802 err(1, "setsockopt(IPV6_AUTH_LEVEL)");
805 if (options & F_ENCRYPT) {
806 optval = IPSEC_LEVEL_REQUIRE;
807 if (setsockopt(s, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
808 &optval, sizeof(optval)) == -1)
809 err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
811 #endif /*IPSEC_POLICY_IPSEC*/
816 struct icmp6_filter filt;
817 if (!(options & F_VERBOSE)) {
818 ICMP6_FILTER_SETBLOCKALL(&filt);
819 if ((options & F_FQDN) || (options & F_FQDNOLD) ||
820 (options & F_NODEADDR) || (options & F_SUPTYPES))
821 ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
823 ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
825 ICMP6_FILTER_SETPASSALL(&filt);
827 if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
829 err(1, "setsockopt(ICMP6_FILTER)");
831 #endif /*ICMP6_FILTER*/
833 /* let the kerel pass extension headers of incoming packets */
834 if ((options & F_VERBOSE) != 0) {
837 #ifdef IPV6_RECVRTHDR
838 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
840 err(1, "setsockopt(IPV6_RECVRTHDR)");
841 #else /* old adv. API */
842 if (setsockopt(s, IPPROTO_IPV6, IPV6_RTHDR, &opton,
844 err(1, "setsockopt(IPV6_RTHDR)");
850 if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
851 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
852 &optval, sizeof(optval)) == -1)
853 err(1, "IPV6_MULTICAST_LOOP");
856 /* Specify the outgoing interface and/or the source address */
858 ip6optlen += CMSG_SPACE(sizeof(struct in6_pktinfo));
861 ip6optlen += CMSG_SPACE(sizeof(int));
863 /* set IP6 packet options */
865 if ((scmsg = (char *)malloc(ip6optlen)) == 0)
866 errx(1, "can't allocate enough memory");
867 smsghdr.msg_control = (caddr_t)scmsg;
868 smsghdr.msg_controllen = ip6optlen;
869 scmsgp = (struct cmsghdr *)scmsg;
872 pktinfo = (struct in6_pktinfo *)(CMSG_DATA(scmsgp));
873 memset(pktinfo, 0, sizeof(*pktinfo));
874 scmsgp->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
875 scmsgp->cmsg_level = IPPROTO_IPV6;
876 scmsgp->cmsg_type = IPV6_PKTINFO;
877 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
880 /* set the outgoing interface */
882 #ifndef USE_SIN6_SCOPE_ID
883 /* pktinfo must have already been allocated */
884 if ((pktinfo->ipi6_ifindex = if_nametoindex(ifname)) == 0)
885 errx(1, "%s: invalid interface name", ifname);
887 if ((dst.sin6_scope_id = if_nametoindex(ifname)) == 0)
888 errx(1, "%s: invalid interface name", ifname);
891 if (hoplimit != -1) {
892 scmsgp->cmsg_len = CMSG_LEN(sizeof(int));
893 scmsgp->cmsg_level = IPPROTO_IPV6;
894 scmsgp->cmsg_type = IPV6_HOPLIMIT;
895 *(int *)(CMSG_DATA(scmsgp)) = hoplimit;
897 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
900 if (argc > 1) { /* some intermediate addrs are specified */
902 #ifdef USE_RFC2292BIS
906 #ifdef USE_RFC2292BIS
907 rthdrlen = inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1);
908 scmsgp->cmsg_len = CMSG_LEN(rthdrlen);
909 scmsgp->cmsg_level = IPPROTO_IPV6;
910 scmsgp->cmsg_type = IPV6_RTHDR;
911 rthdr = (struct ip6_rthdr *)CMSG_DATA(scmsgp);
912 rthdr = inet6_rth_init((void *)rthdr, rthdrlen,
913 IPV6_RTHDR_TYPE_0, argc - 1);
915 errx(1, "can't initialize rthdr");
916 #else /* old advanced API */
917 if ((scmsgp = (struct cmsghdr *)inet6_rthdr_init(scmsgp,
918 IPV6_RTHDR_TYPE_0)) == 0)
919 errx(1, "can't initialize rthdr");
920 #endif /* USE_RFC2292BIS */
922 for (hops = 0; hops < argc - 1; hops++) {
923 struct addrinfo *iaip;
925 if ((error = getaddrinfo(argv[hops], NULL, &hints,
927 errx(1, "%s", gai_strerror(error));
928 if (SIN6(iaip->ai_addr)->sin6_family != AF_INET6)
930 "bad addr family of an intermediate addr");
932 #ifdef USE_RFC2292BIS
933 if (inet6_rth_add(rthdr,
934 &(SIN6(iaip->ai_addr))->sin6_addr))
935 errx(1, "can't add an intermediate node");
936 #else /* old advanced API */
937 if (inet6_rthdr_add(scmsgp,
938 &(SIN6(iaip->ai_addr))->sin6_addr,
940 errx(1, "can't add an intermediate node");
941 #endif /* USE_RFC2292BIS */
945 #ifndef USE_RFC2292BIS
946 if (inet6_rthdr_lasthop(scmsgp, IPV6_RTHDR_LOOSE))
947 errx(1, "can't set the last flag");
950 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
953 if (!(options & F_SRCADDR)) {
955 * get the source address. XXX since we revoked the root
956 * privilege, we cannot use a raw socket for this.
959 socklen_t len = sizeof(src);
961 if ((dummy = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
962 err(1, "UDP socket");
964 src.sin6_family = AF_INET6;
965 src.sin6_addr = dst.sin6_addr;
966 src.sin6_port = ntohs(DUMMY_PORT);
967 src.sin6_scope_id = dst.sin6_scope_id;
969 #ifdef USE_RFC2292BIS
971 setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
972 (void *)pktinfo, sizeof(*pktinfo)))
973 err(1, "UDP setsockopt(IPV6_PKTINFO)");
975 if (hoplimit != -1 &&
976 setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
977 (void *)&hoplimit, sizeof(hoplimit)))
978 err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)");
980 if (hoplimit != -1 &&
981 setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
982 (void *)&hoplimit, sizeof(hoplimit)))
983 err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)");
986 setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
987 (void *)rthdr, (rthdr->ip6r_len + 1) << 3))
988 err(1, "UDP setsockopt(IPV6_RTHDR)");
989 #else /* old advanced API */
990 if (smsghdr.msg_control &&
991 setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTOPTIONS,
992 (void *)smsghdr.msg_control, smsghdr.msg_controllen))
993 err(1, "UDP setsockopt(IPV6_PKTOPTIONS)");
996 if (connect(dummy, (struct sockaddr *)&src, len) < 0)
997 err(1, "UDP connect");
999 if (getsockname(dummy, (struct sockaddr *)&src, &len) < 0)
1000 err(1, "getsockname");
1005 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
1007 if (datalen > sockbufsize)
1008 warnx("you need -b to increase socket buffer size");
1009 if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
1010 sizeof(sockbufsize)) < 0)
1011 err(1, "setsockopt(SO_SNDBUF)");
1012 if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
1013 sizeof(sockbufsize)) < 0)
1014 err(1, "setsockopt(SO_RCVBUF)");
1017 if (datalen > 8 * 1024) /*XXX*/
1018 warnx("you need -b to increase socket buffer size");
1020 * When pinging the broadcast address, you can get a lot of
1021 * answers. Doing something so evil is useful if you are trying
1022 * to stress the ethernet, or just want to fill the arp cache
1023 * to get some stuff for /etc/ethers.
1026 setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
1032 #ifndef USE_SIN6_SCOPE_ID
1033 #ifdef IPV6_RECVPKTINFO
1034 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
1035 sizeof(optval)) < 0)
1036 warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
1037 #else /* old adv. API */
1038 if (setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &optval,
1039 sizeof(optval)) < 0)
1040 warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */
1042 #endif /* USE_SIN6_SCOPE_ID */
1043 #ifdef IPV6_RECVHOPLIMIT
1044 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
1045 sizeof(optval)) < 0)
1046 warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
1047 #else /* old adv. API */
1048 if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
1049 sizeof(optval)) < 0)
1050 warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
1053 printf("PING6(%lu=40+8+%lu bytes) ", (unsigned long)(40 + pingerlen()),
1054 (unsigned long)(pingerlen() - 8));
1055 printf("%s --> ", pr_addr((struct sockaddr *)&src, sizeof(src)));
1056 printf("%s\n", pr_addr((struct sockaddr *)&dst, sizeof(dst)));
1058 while (preload--) /* Fire off them quickies. */
1061 (void)signal(SIGINT, onsignal);
1063 (void)signal(SIGINFO, onsignal);
1066 if ((options & F_FLOOD) == 0) {
1067 (void)signal(SIGALRM, onsignal);
1068 itimer.it_interval = interval;
1069 itimer.it_value = interval;
1070 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1071 if (ntransmitted == 0)
1076 fdmasks = howmany(s + 1, NFDBITS) * sizeof(fd_mask);
1077 if ((fdmaskp = malloc(fdmasks)) == NULL)
1081 seenalrm = seenint = 0;
1088 struct iovec iov[2];
1090 /* signal handling */
1092 /* last packet sent, timeout reached? */
1093 if (npackets && ntransmitted >= npackets)
1112 if (options & F_FLOOD) {
1118 timeout.tv_usec = 10000;
1130 fdmaskp[0].events = POLLIN;
1131 cc = poll(fdmaskp, 1, timeout);
1133 memset(fdmaskp, 0, fdmasks);
1135 cc = select(s + 1, fdmaskp, NULL, NULL, tv);
1138 if (errno != EINTR) {
1150 m.msg_name = (caddr_t)&from;
1151 m.msg_namelen = sizeof(from);
1152 memset(&iov, 0, sizeof(iov));
1153 iov[0].iov_base = (caddr_t)packet;
1154 iov[0].iov_len = packlen;
1157 memset(cm, 0, CONTROLLEN);
1158 m.msg_control = (void *)cm;
1159 m.msg_controllen = CONTROLLEN;
1161 cc = recvmsg(s, &m, 0);
1163 if (errno != EINTR) {
1168 } else if (cc == 0) {
1172 * receive control messages only. Process the
1173 * exceptions (currently the only possibility is
1174 * a path MTU notification.)
1176 if ((mtu = get_pathmtu(&m)) > 0) {
1177 if ((options & F_VERBOSE) != 0) {
1178 printf("new path MTU (%d) is "
1185 * an ICMPv6 message (probably an echoreply) arrived.
1187 pr_pack(packet, cc, &m);
1189 if (((options & F_ONCE) != 0 && nreceived > 0) ||
1190 (npackets > 0 && nreceived >= npackets))
1192 if (ntransmitted - nreceived - 1 > nmissedmax) {
1193 nmissedmax = ntransmitted - nreceived - 1;
1194 if (options & F_MISSED)
1195 (void)write(STDOUT_FILENO, &BBELL, 1);
1211 exit(nreceived == 0 ? 2 : 0);
1235 * This routine transmits another ping6.
1240 struct itimerval itimer;
1246 * If we're not transmitting any more packets, change the timer
1247 * to wait two round-trip times if we've received any packets or
1248 * ten seconds if we haven't.
1252 itimer.it_value.tv_sec = 2 * tmax / 1000;
1253 if (itimer.it_value.tv_sec == 0)
1254 itimer.it_value.tv_sec = 1;
1256 itimer.it_value.tv_sec = MAXWAIT;
1257 itimer.it_interval.tv_sec = 0;
1258 itimer.it_interval.tv_usec = 0;
1259 itimer.it_value.tv_usec = 0;
1261 (void)signal(SIGALRM, onsignal);
1262 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1267 * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
1268 * will be added on by the kernel. The ID field is our UNIX process ID,
1269 * and the sequence number is an ascending integer. The first 8 bytes
1270 * of the data portion are used to hold a UNIX "timeval" struct in VAX
1271 * byte-order, to compute the round-trip time.
1278 if (options & F_FQDN)
1279 l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1280 else if (options & F_FQDNOLD)
1282 else if (options & F_NODEADDR)
1283 l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1284 else if (options & F_SUPTYPES)
1287 l = ICMP6ECHOLEN + datalen;
1295 struct icmp6_hdr *icp;
1296 struct iovec iov[2];
1298 struct icmp6_nodeinfo *nip;
1301 if (npackets && ntransmitted >= npackets)
1302 return(-1); /* no more transmission */
1304 icp = (struct icmp6_hdr *)outpack;
1305 nip = (struct icmp6_nodeinfo *)outpack;
1306 memset(icp, 0, sizeof(*icp));
1307 icp->icmp6_cksum = 0;
1308 seq = ntransmitted++;
1309 CLR(seq % mx_dup_ck);
1311 if (options & F_FQDN) {
1312 icp->icmp6_type = ICMP6_NI_QUERY;
1313 icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
1314 nip->ni_qtype = htons(NI_QTYPE_FQDN);
1315 nip->ni_flags = htons(0);
1317 memcpy(nip->icmp6_ni_nonce, nonce,
1318 sizeof(nip->icmp6_ni_nonce));
1319 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1321 memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
1322 sizeof(dst.sin6_addr));
1323 cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1325 } else if (options & F_FQDNOLD) {
1326 /* packet format in 03 draft - no Subject data on queries */
1327 icp->icmp6_type = ICMP6_NI_QUERY;
1328 icp->icmp6_code = 0; /* code field is always 0 */
1329 nip->ni_qtype = htons(NI_QTYPE_FQDN);
1330 nip->ni_flags = htons(0);
1332 memcpy(nip->icmp6_ni_nonce, nonce,
1333 sizeof(nip->icmp6_ni_nonce));
1334 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1338 } else if (options & F_NODEADDR) {
1339 icp->icmp6_type = ICMP6_NI_QUERY;
1340 icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
1341 nip->ni_qtype = htons(NI_QTYPE_NODEADDR);
1342 nip->ni_flags = naflags;
1344 memcpy(nip->icmp6_ni_nonce, nonce,
1345 sizeof(nip->icmp6_ni_nonce));
1346 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1348 memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
1349 sizeof(dst.sin6_addr));
1350 cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1352 } else if (options & F_SUPTYPES) {
1353 icp->icmp6_type = ICMP6_NI_QUERY;
1354 icp->icmp6_code = ICMP6_NI_SUBJ_FQDN; /*empty*/
1355 nip->ni_qtype = htons(NI_QTYPE_SUPTYPES);
1356 /* we support compressed bitmap */
1357 nip->ni_flags = NI_SUPTYPE_FLAG_COMPRESS;
1359 memcpy(nip->icmp6_ni_nonce, nonce,
1360 sizeof(nip->icmp6_ni_nonce));
1361 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1365 icp->icmp6_type = ICMP6_ECHO_REQUEST;
1366 icp->icmp6_code = 0;
1367 icp->icmp6_id = htons(ident);
1368 icp->icmp6_seq = ntohs(seq);
1372 (void)gettimeofday(&tv, NULL);
1373 tv32 = (struct tv32 *)&outpack[ICMP6ECHOLEN];
1374 tv32->tv32_sec = htonl(tv.tv_sec);
1375 tv32->tv32_usec = htonl(tv.tv_usec);
1377 cc = ICMP6ECHOLEN + datalen;
1381 if (pingerlen() != cc)
1382 errx(1, "internal error; length mismatch");
1385 smsghdr.msg_name = (caddr_t)&dst;
1386 smsghdr.msg_namelen = sizeof(dst);
1387 memset(&iov, 0, sizeof(iov));
1388 iov[0].iov_base = (caddr_t)outpack;
1389 iov[0].iov_len = cc;
1390 smsghdr.msg_iov = iov;
1391 smsghdr.msg_iovlen = 1;
1393 i = sendmsg(s, &smsghdr, 0);
1395 if (i < 0 || i != cc) {
1398 (void)printf("ping6: wrote %s %d chars, ret=%d\n",
1401 if (!(options & F_QUIET) && options & F_FLOOD)
1402 (void)write(STDOUT_FILENO, &DOT, 1);
1408 myechoreply(const struct icmp6_hdr *icp)
1410 if (ntohs(icp->icmp6_id) == ident)
1417 mynireply(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(const u_char **sp, const u_char *ep, const u_char *base, char *buf,
1430 /*base for compressed name*/
1434 char cresult[MAXDNAME + 1];
1445 if (i == 0 || cp != *sp) {
1446 if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
1447 return NULL; /*result overrun*/
1453 if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
1454 /* DNS compression */
1458 comp = base + (i & 0x3f);
1459 if (dnsdecode(&comp, cp, base, cresult,
1460 sizeof(cresult)) == NULL)
1462 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1463 return NULL; /*result overrun*/
1465 } else if ((i & 0x3f) == i) {
1467 return NULL; /*source overrun*/
1468 while (i-- > 0 && cp < ep) {
1469 l = snprintf(cresult, sizeof(cresult),
1470 isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
1471 if (l >= sizeof(cresult) || l < 0)
1473 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1474 return NULL; /*result overrun*/
1478 return NULL; /*invalid label*/
1481 return NULL; /*not terminated*/
1489 * Print out the packet, if it came from us. This logic is necessary
1490 * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
1491 * which arrive ('tis only fair). This permits multiple copies of this
1492 * program to be run without having intermingled output (or statistics!).
1495 pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
1497 #define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
1498 struct icmp6_hdr *icp;
1499 struct icmp6_nodeinfo *ni;
1502 struct sockaddr *from;
1504 u_char *cp = NULL, *dp, *end = buf + cc;
1505 struct in6_pktinfo *pktinfo = NULL;
1506 struct timeval tv, tp;
1508 double triptime = 0;
1513 char dnsname[MAXDNAME + 1];
1515 (void)gettimeofday(&tv, NULL);
1517 if (!mhdr || !mhdr->msg_name ||
1518 mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
1519 ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
1520 if (options & F_VERBOSE)
1521 warnx("invalid peername");
1524 from = (struct sockaddr *)mhdr->msg_name;
1525 fromlen = mhdr->msg_namelen;
1526 if (cc < sizeof(struct icmp6_hdr)) {
1527 if (options & F_VERBOSE)
1528 warnx("packet too short (%d bytes) from %s", cc,
1529 pr_addr(from, fromlen));
1532 if (((mhdr->msg_flags & MSG_CTRUNC) != 0) &&
1533 (options & F_VERBOSE) != 0)
1534 warnx("some control data discarded, insufficient buffer size");
1535 icp = (struct icmp6_hdr *)buf;
1536 ni = (struct icmp6_nodeinfo *)buf;
1539 if ((hoplim = get_hoplim(mhdr)) == -1) {
1540 warnx("failed to get receiving hop limit");
1543 if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
1544 warnx("failed to get receiving packet information");
1548 if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
1549 seq = ntohs(icp->icmp6_seq);
1552 tpp = (struct tv32 *)(icp + 1);
1553 tp.tv_sec = ntohl(tpp->tv32_sec);
1554 tp.tv_usec = ntohl(tpp->tv32_usec);
1556 triptime = ((double)tv.tv_sec) * 1000.0 +
1557 ((double)tv.tv_usec) / 1000.0;
1559 tsumsq += triptime * triptime;
1560 if (triptime < tmin)
1562 if (triptime > tmax)
1566 if (TST(seq % mx_dup_ck)) {
1571 SET(seq % mx_dup_ck);
1575 if (options & F_QUIET)
1578 if (options & F_FLOOD)
1579 (void)write(STDOUT_FILENO, &BSPACE, 1);
1581 if (options & F_AUDIBLE)
1582 (void)write(STDOUT_FILENO, &BBELL, 1);
1583 (void)printf("%d bytes from %s, icmp_seq=%u", cc,
1584 pr_addr(from, fromlen), seq);
1585 (void)printf(" hlim=%d", hoplim);
1586 if ((options & F_VERBOSE) != 0) {
1587 struct sockaddr_in6 dstsa;
1589 memset(&dstsa, 0, sizeof(dstsa));
1590 dstsa.sin6_family = AF_INET6;
1591 dstsa.sin6_len = sizeof(dstsa);
1592 dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
1593 dstsa.sin6_addr = pktinfo->ipi6_addr;
1594 (void)printf(" dst=%s",
1595 pr_addr((struct sockaddr *)&dstsa,
1599 (void)printf(" time=%.3f ms", triptime);
1601 (void)printf("(DUP!)");
1602 /* check the data */
1603 cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1604 dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1605 for (i = 8; cp < end; ++i, ++cp, ++dp) {
1607 (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
1612 } else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
1613 seq = ntohs(*(u_int16_t *)ni->icmp6_ni_nonce);
1615 if (TST(seq % mx_dup_ck)) {
1620 SET(seq % mx_dup_ck);
1624 if (options & F_QUIET)
1627 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1629 switch (ntohs(ni->ni_code)) {
1630 case ICMP6_NI_SUCCESS:
1632 case ICMP6_NI_REFUSED:
1633 printf("refused, type 0x%x", ntohs(ni->ni_type));
1635 case ICMP6_NI_UNKNOWN:
1636 printf("unknown, type 0x%x", ntohs(ni->ni_type));
1639 printf("unknown code 0x%x, type 0x%x",
1640 ntohs(ni->ni_code), ntohs(ni->ni_type));
1644 switch (ntohs(ni->ni_qtype)) {
1646 printf("NodeInfo NOOP");
1648 case NI_QTYPE_SUPTYPES:
1649 pr_suptypes(ni, end - (u_char *)ni);
1651 case NI_QTYPE_NODEADDR:
1652 pr_nodeaddr(ni, end - (u_char *)ni);
1655 default: /* XXX: for backward compatibility */
1656 cp = (u_char *)ni + ICMP6_NIRLEN;
1657 if (buf[off + ICMP6_NIRLEN] ==
1658 cc - off - ICMP6_NIRLEN - 1)
1663 cp++; /* skip length */
1665 safeputc(*cp & 0xff);
1671 if (dnsdecode((const u_char **)&cp, end,
1672 (const u_char *)(ni + 1), dnsname,
1673 sizeof(dnsname)) == NULL) {
1678 * name-lookup special handling for
1681 if (cp + 1 <= end && !*cp &&
1682 strlen(dnsname) > 0) {
1683 dnsname[strlen(dnsname) - 1] = '\0';
1686 printf("%s%s", i > 0 ? "," : "",
1690 if (options & F_VERBOSE) {
1694 (void)printf(" ("); /*)*/
1696 switch (ni->ni_code) {
1697 case ICMP6_NI_REFUSED:
1698 (void)printf("refused");
1701 case ICMP6_NI_UNKNOWN:
1702 (void)printf("unknown qtype");
1707 if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
1708 /* case of refusion, unknown */
1713 ttl = (int32_t)ntohl(*(u_long *)&buf[off+ICMP6ECHOLEN+8]);
1716 if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
1717 (void)printf("TTL=%d:meaningless",
1721 (void)printf("TTL=%d:invalid",
1724 (void)printf("TTL=%d", ttl);
1734 cp = (u_char *)ni + ICMP6_NIRLEN;
1743 if (buf[off + ICMP6_NIRLEN] !=
1744 cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
1747 (void)printf("invalid namelen:%d/%lu",
1748 buf[off + ICMP6_NIRLEN],
1749 (u_long)cc - off - ICMP6_NIRLEN - 1);
1759 /* We've got something other than an ECHOREPLY */
1760 if (!(options & F_VERBOSE))
1762 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1766 if (!(options & F_FLOOD)) {
1767 (void)putchar('\n');
1768 if (options & F_VERBOSE)
1770 (void)fflush(stdout);
1776 pr_exthdrs(struct msghdr *mhdr)
1783 bufp = mhdr->msg_control;
1784 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
1785 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
1786 if (cm->cmsg_level != IPPROTO_IPV6)
1789 bufsize = CONTROLLEN - ((caddr_t)CMSG_DATA(cm) - (caddr_t)bufp);
1792 switch (cm->cmsg_type) {
1794 printf(" HbH Options: ");
1795 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1798 #ifdef IPV6_RTHDRDSTOPTS
1799 case IPV6_RTHDRDSTOPTS:
1801 printf(" Dst Options: ");
1802 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1805 printf(" Routing: ");
1806 pr_rthdr(CMSG_DATA(cm), (size_t)bufsize);
1812 #ifdef USE_RFC2292BIS
1814 pr_ip6opt(void *extbuf, size_t bufsize)
1816 struct ip6_hbh *ext;
1819 socklen_t extlen, len;
1825 ext = (struct ip6_hbh *)extbuf;
1826 extlen = (ext->ip6h_len + 1) * 8;
1827 printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
1828 (unsigned int)ext->ip6h_len, (unsigned long)extlen);
1831 * Bounds checking on the ancillary data buffer:
1832 * subtract the size of a cmsg structure from the buffer size.
1834 if (bufsize < (extlen + CMSG_SPACE(0))) {
1835 extlen = bufsize - CMSG_SPACE(0);
1836 warnx("options truncated, showing only %u (total=%u)",
1837 (unsigned int)(extlen / 8 - 1),
1838 (unsigned int)(ext->ip6h_len));
1843 currentlen = inet6_opt_next(extbuf, extlen, currentlen,
1844 &type, &len, &databuf);
1845 if (currentlen == -1)
1849 * Note that inet6_opt_next automatically skips any padding
1854 offset = inet6_opt_get_val(databuf, offset,
1855 &value4, sizeof(value4));
1856 printf(" Jumbo Payload Opt: Length %u\n",
1857 (u_int32_t)ntohl(value4));
1859 case IP6OPT_ROUTER_ALERT:
1861 offset = inet6_opt_get_val(databuf, offset,
1862 &value2, sizeof(value2));
1863 printf(" Router Alert Opt: Type %u\n",
1867 printf(" Received Opt %u len %lu\n",
1868 type, (unsigned long)len);
1874 #else /* !USE_RFC2292BIS */
1877 pr_ip6opt(void *extbuf, size_t bufsize __unused)
1882 #endif /* USE_RFC2292BIS */
1884 #ifdef USE_RFC2292BIS
1886 pr_rthdr(void *extbuf, size_t bufsize)
1888 struct in6_addr *in6;
1889 char ntopbuf[INET6_ADDRSTRLEN];
1890 struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
1891 int i, segments, origsegs, rthsize, size0, size1;
1893 /* print fixed part of the header */
1894 printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
1895 rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
1896 if ((segments = inet6_rth_segments(extbuf)) >= 0) {
1897 printf("%d segments, ", segments);
1898 printf("%d left\n", rh->ip6r_segleft);
1900 printf("segments unknown, ");
1901 printf("%d left\n", rh->ip6r_segleft);
1906 * Bounds checking on the ancillary data buffer. When calculating
1907 * the number of items to show keep in mind:
1908 * - The size of the cmsg structure
1909 * - The size of one segment (the size of a Type 0 routing header)
1910 * - When dividing add a fudge factor of one in case the
1911 * dividend is not evenly divisible by the divisor
1913 rthsize = (rh->ip6r_len + 1) * 8;
1914 if (bufsize < (rthsize + CMSG_SPACE(0))) {
1915 origsegs = segments;
1916 size0 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 0);
1917 size1 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 1);
1918 segments -= (rthsize - (bufsize - CMSG_SPACE(0))) /
1919 (size1 - size0) + 1;
1920 warnx("segments truncated, showing only %d (total=%d)",
1921 segments, origsegs);
1924 for (i = 0; i < segments; i++) {
1925 in6 = inet6_rth_getaddr(extbuf, i);
1927 printf(" [%d]<NULL>\n", i);
1929 if (!inet_ntop(AF_INET6, in6, ntopbuf,
1931 strlcpy(ntopbuf, "?", sizeof(ntopbuf));
1932 printf(" [%d]%s\n", i, ntopbuf);
1940 #else /* !USE_RFC2292BIS */
1943 pr_rthdr(void *extbuf, size_t bufsize __unused)
1948 #endif /* USE_RFC2292BIS */
1951 pr_bitrange(u_int32_t v, int soff, int ii)
1958 /* shift till we have 0x01 */
1959 if ((v & 0x01) == 0) {
1961 printf("-%u", soff + off - 1);
1972 case 0x04: case 0x0c:
1983 /* we have 0x01 with us */
1984 for (i = 0; i < 32 - off; i++) {
1985 if ((v & (0x01 << i)) == 0)
1989 printf(" %u", soff + off);
1997 pr_suptypes(struct icmp6_nodeinfo *ni, size_t nilen)
1998 /* ni->qtype must be SUPTYPES */
2002 const u_char *cp, *end;
2005 u_int16_t words; /*32bit count*/
2008 #define MAXQTYPES (1 << 16)
2012 cp = (u_char *)(ni + 1);
2013 end = ((u_char *)ni) + nilen;
2017 printf("NodeInfo Supported Qtypes");
2018 if (options & F_VERBOSE) {
2019 if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
2020 printf(", compressed bitmap");
2022 printf(", raw bitmap");
2026 clen = (size_t)(end - cp);
2027 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
2028 if (clen == 0 || clen > MAXQTYPES / 8 ||
2034 if (clen < sizeof(cbit) || clen % sizeof(v))
2036 memcpy(&cbit, cp, sizeof(cbit));
2037 if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
2041 clen = ntohs(cbit.words) * sizeof(v);
2042 if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
2047 for (off = 0; off < clen; off += sizeof(v)) {
2048 memcpy(&v, cp + off, sizeof(v));
2049 v = (u_int32_t)ntohl(v);
2050 b = pr_bitrange(v, (int)(cur + off * 8), b);
2052 /* flush the remaining bits */
2053 b = pr_bitrange(0, (int)(cur + off * 8), b);
2057 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
2058 cur += ntohs(cbit.skip) * 32;
2063 pr_nodeaddr(struct icmp6_nodeinfo *ni, int nilen)
2064 /* ni->qtype must be NODEADDR */
2066 u_char *cp = (u_char *)(ni + 1);
2067 char ntop_buf[INET6_ADDRSTRLEN];
2070 nilen -= sizeof(struct icmp6_nodeinfo);
2072 if (options & F_VERBOSE) {
2073 switch (ni->ni_code) {
2074 case ICMP6_NI_REFUSED:
2075 (void)printf("refused");
2077 case ICMP6_NI_UNKNOWN:
2078 (void)printf("unknown qtype");
2081 if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
2082 (void)printf(" truncated");
2086 printf(" no address\n");
2089 * In icmp-name-lookups 05 and later, TTL of each returned address
2090 * is contained in the resposne. We try to detect the version
2091 * by the length of the data, but note that the detection algorithm
2092 * is incomplete. We assume the latest draft by default.
2094 if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
2100 /* XXX: alignment? */
2101 ttl = (u_int32_t)ntohl(*(u_int32_t *)cp);
2102 cp += sizeof(u_int32_t);
2103 nilen -= sizeof(u_int32_t);
2106 if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
2108 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2109 printf(" %s", ntop_buf);
2111 if (ttl == 0xffffffff) {
2113 * XXX: can this convention be applied to all
2114 * type of TTL (i.e. non-ND TTL)?
2116 printf("(TTL=infty)");
2119 printf("(TTL=%u)", ttl);
2123 nilen -= sizeof(struct in6_addr);
2124 cp += sizeof(struct in6_addr);
2129 get_hoplim(struct msghdr *mhdr)
2133 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2134 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2135 if (cm->cmsg_len == 0)
2138 if (cm->cmsg_level == IPPROTO_IPV6 &&
2139 cm->cmsg_type == IPV6_HOPLIMIT &&
2140 cm->cmsg_len == CMSG_LEN(sizeof(int)))
2141 return(*(int *)CMSG_DATA(cm));
2147 struct in6_pktinfo *
2148 get_rcvpktinfo(struct msghdr *mhdr)
2152 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2153 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2154 if (cm->cmsg_len == 0)
2157 if (cm->cmsg_level == IPPROTO_IPV6 &&
2158 cm->cmsg_type == IPV6_PKTINFO &&
2159 cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo)))
2160 return((struct in6_pktinfo *)CMSG_DATA(cm));
2167 get_pathmtu(struct msghdr *mhdr)
2169 #ifdef IPV6_RECVPATHMTU
2171 struct ip6_mtuinfo *mtuctl = NULL;
2173 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2174 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2175 if (cm->cmsg_len == 0)
2178 if (cm->cmsg_level == IPPROTO_IPV6 &&
2179 cm->cmsg_type == IPV6_PATHMTU &&
2180 cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
2181 mtuctl = (struct ip6_mtuinfo *)CMSG_DATA(cm);
2184 * If the notified destination is different from
2185 * the one we are pinging, just ignore the info.
2186 * We check the scope ID only when both notified value
2187 * and our own value have non-0 values, because we may
2188 * have used the default scope zone ID for sending,
2189 * in which case the scope ID value is 0.
2191 if (!IN6_ARE_ADDR_EQUAL(&mtuctl->ip6m_addr.sin6_addr,
2193 (mtuctl->ip6m_addr.sin6_scope_id &&
2194 dst.sin6_scope_id &&
2195 mtuctl->ip6m_addr.sin6_scope_id !=
2196 dst.sin6_scope_id)) {
2197 if ((options & F_VERBOSE) != 0) {
2198 printf("path MTU for %s is notified. "
2200 pr_addr((struct sockaddr *)&mtuctl->ip6m_addr,
2201 sizeof(mtuctl->ip6m_addr)));
2207 * Ignore an invalid MTU. XXX: can we just believe
2210 if (mtuctl->ip6m_mtu < IPV6_MMTU)
2213 /* notification for our destination. return the MTU. */
2214 return((int)mtuctl->ip6m_mtu);
2223 * Subtract 2 timeval structs: out = out - in. Out is assumed to
2227 tvsub(struct timeval *out, struct timeval *in)
2229 if ((out->tv_usec -= in->tv_usec) < 0) {
2231 out->tv_usec += 1000000;
2233 out->tv_sec -= in->tv_sec;
2242 onint(int notused __unused)
2257 (void)signal(SIGINT, SIG_DFL);
2258 (void)kill(getpid(), SIGINT);
2266 * Print out statistics.
2272 (void)printf("\n--- %s ping6 statistics ---\n", hostname);
2273 (void)printf("%ld packets transmitted, ", ntransmitted);
2274 (void)printf("%ld packets received, ", nreceived);
2276 (void)printf("+%ld duplicates, ", nrepeats);
2278 if (nreceived > ntransmitted)
2279 (void)printf("-- somebody's duplicating packets!");
2281 (void)printf("%.1f%% packet loss",
2282 ((((double)ntransmitted - nreceived) * 100.0) /
2285 (void)putchar('\n');
2286 if (nreceived && timing) {
2287 /* Only display average to microseconds */
2288 double num = nreceived + nrepeats;
2289 double avg = tsum / num;
2290 double dev = sqrt(tsumsq / num - avg * avg);
2292 "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
2293 tmin, avg, tmax, dev);
2294 (void)fflush(stdout);
2296 (void)fflush(stdout);
2300 static const char *niqcode[] = {
2302 "DNS label", /*or empty*/
2307 static const char *nircode[] = {
2308 "Success", "Refused", "Unknown",
2314 * Print a descriptive string about an ICMP header.
2317 pr_icmph(struct icmp6_hdr *icp, u_char *end)
2319 char ntop_buf[INET6_ADDRSTRLEN];
2320 struct nd_redirect *red;
2321 struct icmp6_nodeinfo *ni;
2322 char dnsname[MAXDNAME + 1];
2326 switch (icp->icmp6_type) {
2327 case ICMP6_DST_UNREACH:
2328 switch (icp->icmp6_code) {
2329 case ICMP6_DST_UNREACH_NOROUTE:
2330 (void)printf("No Route to Destination\n");
2332 case ICMP6_DST_UNREACH_ADMIN:
2333 (void)printf("Destination Administratively "
2336 case ICMP6_DST_UNREACH_BEYONDSCOPE:
2337 (void)printf("Destination Unreachable Beyond Scope\n");
2339 case ICMP6_DST_UNREACH_ADDR:
2340 (void)printf("Destination Host Unreachable\n");
2342 case ICMP6_DST_UNREACH_NOPORT:
2343 (void)printf("Destination Port Unreachable\n");
2346 (void)printf("Destination Unreachable, Bad Code: %d\n",
2350 /* Print returned IP header information */
2351 pr_retip((struct ip6_hdr *)(icp + 1), end);
2353 case ICMP6_PACKET_TOO_BIG:
2354 (void)printf("Packet too big mtu = %d\n",
2355 (int)ntohl(icp->icmp6_mtu));
2356 pr_retip((struct ip6_hdr *)(icp + 1), end);
2358 case ICMP6_TIME_EXCEEDED:
2359 switch (icp->icmp6_code) {
2360 case ICMP6_TIME_EXCEED_TRANSIT:
2361 (void)printf("Time to live exceeded\n");
2363 case ICMP6_TIME_EXCEED_REASSEMBLY:
2364 (void)printf("Frag reassembly time exceeded\n");
2367 (void)printf("Time exceeded, Bad Code: %d\n",
2371 pr_retip((struct ip6_hdr *)(icp + 1), end);
2373 case ICMP6_PARAM_PROB:
2374 (void)printf("Parameter problem: ");
2375 switch (icp->icmp6_code) {
2376 case ICMP6_PARAMPROB_HEADER:
2377 (void)printf("Erroneous Header ");
2379 case ICMP6_PARAMPROB_NEXTHEADER:
2380 (void)printf("Unknown Nextheader ");
2382 case ICMP6_PARAMPROB_OPTION:
2383 (void)printf("Unrecognized Option ");
2386 (void)printf("Bad code(%d) ", icp->icmp6_code);
2389 (void)printf("pointer = 0x%02x\n",
2390 (u_int32_t)ntohl(icp->icmp6_pptr));
2391 pr_retip((struct ip6_hdr *)(icp + 1), end);
2393 case ICMP6_ECHO_REQUEST:
2394 (void)printf("Echo Request");
2395 /* XXX ID + Seq + Data */
2397 case ICMP6_ECHO_REPLY:
2398 (void)printf("Echo Reply");
2399 /* XXX ID + Seq + Data */
2401 case ICMP6_MEMBERSHIP_QUERY:
2402 (void)printf("Listener Query");
2404 case ICMP6_MEMBERSHIP_REPORT:
2405 (void)printf("Listener Report");
2407 case ICMP6_MEMBERSHIP_REDUCTION:
2408 (void)printf("Listener Done");
2410 case ND_ROUTER_SOLICIT:
2411 (void)printf("Router Solicitation");
2413 case ND_ROUTER_ADVERT:
2414 (void)printf("Router Advertisement");
2416 case ND_NEIGHBOR_SOLICIT:
2417 (void)printf("Neighbor Solicitation");
2419 case ND_NEIGHBOR_ADVERT:
2420 (void)printf("Neighbor Advertisement");
2423 red = (struct nd_redirect *)icp;
2424 (void)printf("Redirect\n");
2425 if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
2427 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2428 (void)printf("Destination: %s", ntop_buf);
2429 if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
2431 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2432 (void)printf(" New Target: %s", ntop_buf);
2434 case ICMP6_NI_QUERY:
2435 (void)printf("Node Information Query");
2436 /* XXX ID + Seq + Data */
2437 ni = (struct icmp6_nodeinfo *)icp;
2438 l = end - (u_char *)(ni + 1);
2440 switch (ntohs(ni->ni_qtype)) {
2442 (void)printf("NOOP");
2444 case NI_QTYPE_SUPTYPES:
2445 (void)printf("Supported qtypes");
2448 (void)printf("DNS name");
2450 case NI_QTYPE_NODEADDR:
2451 (void)printf("nodeaddr");
2453 case NI_QTYPE_IPV4ADDR:
2454 (void)printf("IPv4 nodeaddr");
2457 (void)printf("unknown qtype");
2460 if (options & F_VERBOSE) {
2461 switch (ni->ni_code) {
2462 case ICMP6_NI_SUBJ_IPV6:
2463 if (l == sizeof(struct in6_addr) &&
2464 inet_ntop(AF_INET6, ni + 1, ntop_buf,
2465 sizeof(ntop_buf)) != NULL) {
2466 (void)printf(", subject=%s(%s)",
2467 niqcode[ni->ni_code], ntop_buf);
2470 /* backward compat to -W */
2471 (void)printf(", oldfqdn");
2473 (void)printf(", invalid");
2477 case ICMP6_NI_SUBJ_FQDN:
2478 if (end == (u_char *)(ni + 1)) {
2479 (void)printf(", no subject");
2482 printf(", subject=%s", niqcode[ni->ni_code]);
2483 cp = (const u_char *)(ni + 1);
2484 if (dnsdecode(&cp, end, NULL, dnsname,
2485 sizeof(dnsname)) != NULL)
2486 printf("(%s)", dnsname);
2488 printf("(invalid)");
2490 case ICMP6_NI_SUBJ_IPV4:
2491 if (l == sizeof(struct in_addr) &&
2492 inet_ntop(AF_INET, ni + 1, ntop_buf,
2493 sizeof(ntop_buf)) != NULL) {
2494 (void)printf(", subject=%s(%s)",
2495 niqcode[ni->ni_code], ntop_buf);
2497 (void)printf(", invalid");
2500 (void)printf(", invalid");
2505 case ICMP6_NI_REPLY:
2506 (void)printf("Node Information Reply");
2507 /* XXX ID + Seq + Data */
2508 ni = (struct icmp6_nodeinfo *)icp;
2510 switch (ntohs(ni->ni_qtype)) {
2512 (void)printf("NOOP");
2514 case NI_QTYPE_SUPTYPES:
2515 (void)printf("Supported qtypes");
2518 (void)printf("DNS name");
2520 case NI_QTYPE_NODEADDR:
2521 (void)printf("nodeaddr");
2523 case NI_QTYPE_IPV4ADDR:
2524 (void)printf("IPv4 nodeaddr");
2527 (void)printf("unknown qtype");
2530 if (options & F_VERBOSE) {
2531 if (ni->ni_code > sizeof(nircode) / sizeof(nircode[0]))
2532 printf(", invalid");
2534 printf(", %s", nircode[ni->ni_code]);
2538 (void)printf("Bad ICMP type: %d", icp->icmp6_type);
2544 * Print an IP6 header.
2547 pr_iph(struct ip6_hdr *ip6)
2549 u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
2551 char ntop_buf[INET6_ADDRSTRLEN];
2553 tc = *(&ip6->ip6_vfc + 1); /* XXX */
2554 tc = (tc >> 4) & 0x0f;
2555 tc |= (ip6->ip6_vfc << 4);
2557 printf("Vr TC Flow Plen Nxt Hlim\n");
2558 printf(" %1x %02x %05x %04x %02x %02x\n",
2559 (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
2560 ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
2561 if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
2562 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2563 printf("%s->", ntop_buf);
2564 if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
2565 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2566 printf("%s\n", ntop_buf);
2571 * Return an ascii host address as a dotted quad and optionally with
2575 pr_addr(struct sockaddr *addr, int addrlen)
2577 static char buf[NI_MAXHOST];
2580 if ((options & F_HOSTNAME) == 0)
2581 flag |= NI_NUMERICHOST;
2583 if (getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0, flag) == 0)
2591 * Dump some info on a returned (via ICMPv6) IPv6 packet.
2594 pr_retip(struct ip6_hdr *ip6, u_char *end)
2596 u_char *cp = (u_char *)ip6, nh;
2599 if (end - (u_char *)ip6 < sizeof(*ip6)) {
2604 hlen = sizeof(*ip6);
2608 while (end - cp >= 8) {
2610 case IPPROTO_HOPOPTS:
2612 hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
2613 nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
2615 case IPPROTO_DSTOPTS:
2617 hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
2618 nh = ((struct ip6_dest *)cp)->ip6d_nxt;
2620 case IPPROTO_FRAGMENT:
2622 hlen = sizeof(struct ip6_frag);
2623 nh = ((struct ip6_frag *)cp)->ip6f_nxt;
2625 case IPPROTO_ROUTING:
2627 hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
2628 nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
2633 hlen = (((struct ah *)cp)->ah_len+2) << 2;
2634 nh = ((struct ah *)cp)->ah_nxt;
2637 case IPPROTO_ICMPV6:
2638 printf("ICMP6: type = %d, code = %d\n",
2645 printf("TCP: from port %u, to port %u (decimal)\n",
2646 (*cp * 256 + *(cp + 1)),
2647 (*(cp + 2) * 256 + *(cp + 3)));
2650 printf("UDP: from port %u, to port %u (decimal)\n",
2651 (*cp * 256 + *(cp + 1)),
2652 (*(cp + 2) * 256 + *(cp + 3)));
2655 printf("Unknown Header(%d)\n", nh);
2659 if ((cp += hlen) >= end)
2674 fill(char *bp, char *patp)
2680 for (cp = patp; *cp; cp++)
2682 errx(1, "patterns must be specified as hex digits");
2684 "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
2685 &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
2686 &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
2687 &pat[13], &pat[14], &pat[15]);
2692 kk <= MAXDATALEN - (8 + sizeof(struct tv32) + ii);
2694 for (jj = 0; jj < ii; ++jj)
2695 bp[jj + kk] = pat[jj];
2696 if (!(options & F_QUIET)) {
2697 (void)printf("PATTERN: 0x");
2698 for (jj = 0; jj < ii; ++jj)
2699 (void)printf("%02x", bp[jj] & 0xFF);
2705 #ifdef IPSEC_POLICY_IPSEC
2707 setpolicy(int so __unused, char *policy)
2712 return 0; /* ignore */
2714 buf = ipsec_set_policy(policy, strlen(policy));
2716 errx(1, "%s", ipsec_strerror());
2717 if (setsockopt(s, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
2718 ipsec_get_policylen(buf)) < 0)
2719 warnx("Unable to set IPsec policy");
2728 nigroup(char *name, int nig_oldmcprefix)
2733 u_int8_t digest[16];
2736 char hbuf[NI_MAXHOST];
2737 struct in6_addr in6;
2740 p = strchr(name, '.');
2742 p = name + strlen(name);
2744 if (l > 63 || l > sizeof(hbuf) - 1)
2745 return NULL; /*label too long*/
2746 strncpy(hbuf, name, l);
2747 hbuf[(int)l] = '\0';
2749 for (q = name; *q; q++) {
2750 if (isupper(*(unsigned char *)q))
2751 *q = tolower(*(unsigned char *)q);
2754 /* generate 16 bytes of pseudo-random value. */
2755 memset(&ctxt, 0, sizeof(ctxt));
2758 MD5Update(&ctxt, &c, sizeof(c));
2759 MD5Update(&ctxt, (unsigned char *)name, l);
2760 MD5Final(digest, &ctxt);
2762 if (nig_oldmcprefix) {
2763 /* draft-ietf-ipngwg-icmp-name-lookup */
2764 valid = inet_pton(AF_INET6, "ff02::2:0000:0000", &in6);
2767 valid = inet_pton(AF_INET6, "ff02::2:ff00:0000", &in6);
2770 return NULL; /*XXX*/
2772 if (nig_oldmcprefix) {
2773 /* draft-ietf-ipngwg-icmp-name-lookup */
2774 bcopy(digest, &in6.s6_addr[12], 4);
2777 bcopy(digest, &in6.s6_addr[13], 3);
2780 if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
2783 return strdup(hbuf);
2789 (void)fprintf(stderr,
2790 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2795 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2799 #ifdef IPV6_USE_MIN_MTU
2803 "[-a addrtype] [-b bufsiz] [-c count] [-g gateway]\n"
2804 " [-h hoplimit] [-I interface] [-i wait] [-l preload]"
2805 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
2809 " [-p pattern] [-S sourceaddr] [-s packetsize] "
2810 "[hops ...] host\n");