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 *);
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;
310 char *e, *target, *ifname = NULL, *gateway = NULL;
312 struct cmsghdr *scmsgp = NULL;
313 /* For control (ancillary) data received from recvmsg() */
314 struct cmsghdr cm[CONTROLLEN];
315 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
320 struct in6_pktinfo *pktinfo = NULL;
321 #ifdef USE_RFC2292BIS
322 struct ip6_rthdr *rthdr = NULL;
324 #ifdef IPSEC_POLICY_IPSEC
325 char *policy_in = NULL;
326 char *policy_out = NULL;
330 #ifdef IPV6_USE_MIN_MTU
334 /* just to be sure */
335 memset(&smsghdr, 0, sizeof(smsghdr));
336 memset(&smsgiov, 0, sizeof(smsgiov));
339 datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
343 #ifdef IPSEC_POLICY_IPSEC
347 #endif /*IPSEC_POLICY_IPSEC*/
349 while ((ch = getopt(argc, argv,
350 "a:b:c:DdfHg:h:I:i:l:mnNop:qrRS:s:tvwW" ADDOPTS)) != -1) {
357 options &= ~F_NOUSERDATA;
358 options |= F_NODEADDR;
359 for (cp = optarg; *cp != '\0'; cp++) {
362 naflags |= NI_NODEADDR_FLAG_ALL;
366 naflags |= NI_NODEADDR_FLAG_COMPAT;
370 naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
374 naflags |= NI_NODEADDR_FLAG_SITELOCAL;
378 naflags |= NI_NODEADDR_FLAG_GLOBAL;
380 case 'A': /* experimental. not in the spec */
381 #ifdef NI_NODEADDR_FLAG_ANYCAST
382 naflags |= NI_NODEADDR_FLAG_ANYCAST;
386 "-a A is not supported on the platform");
397 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
400 lsockbufsize = strtoul(optarg, &e, 10);
401 sockbufsize = lsockbufsize;
402 if (errno || !*optarg || *e ||
403 sockbufsize != lsockbufsize)
404 errx(1, "invalid socket buffer size");
407 "-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
411 npackets = strtol(optarg, &e, 10);
412 if (npackets <= 0 || *optarg == '\0' || *e != '\0')
414 "illegal number of packets -- %s", optarg);
417 options |= F_DONTFRAG;
420 options |= F_SO_DEBUG;
425 errx(1, "Must be superuser to flood ping");
428 setbuf(stdout, (char *)NULL);
434 options |= F_HOSTNAME;
436 case 'h': /* hoplimit */
437 hoplimit = strtol(optarg, &e, 10);
438 if (*optarg == '\0' || *e != '\0')
439 errx(1, "illegal hoplimit %s", optarg);
440 if (255 < hoplimit || hoplimit < -1)
442 "illegal hoplimit -- %s", optarg);
446 options |= F_INTERFACE;
447 #ifndef USE_SIN6_SCOPE_ID
451 case 'i': /* wait between sending packets */
452 intval = strtod(optarg, &e);
453 if (*optarg == '\0' || *e != '\0')
454 errx(1, "illegal timing interval %s", optarg);
455 if (intval < 1 && getuid()) {
456 errx(1, "%s: only root may use interval < 1s",
459 interval.tv_sec = (long)intval;
461 (long)((intval - interval.tv_sec) * 1000000);
462 if (interval.tv_sec < 0)
463 errx(1, "illegal timing interval %s", optarg);
464 /* less than 1/hz does not make sense */
465 if (interval.tv_sec == 0 && interval.tv_usec < 1) {
466 warnx("too small interval, raised to .000001");
467 interval.tv_usec = 1;
469 options |= F_INTERVAL;
474 errx(1, "Must be superuser to preload");
476 preload = strtol(optarg, &e, 10);
477 if (preload < 0 || *optarg == '\0' || *e != '\0')
478 errx(1, "illegal preload value -- %s", optarg);
481 #ifdef IPV6_USE_MIN_MTU
485 errx(1, "-%c is not supported on this platform", ch);
489 options &= ~F_HOSTNAME;
492 options |= F_NIGROUP;
497 case 'p': /* fill buffer with user pattern */
498 options |= F_PINGFILLED;
499 fill((char *)datap, optarg);
505 options |= F_AUDIBLE;
511 memset(&hints, 0, sizeof(struct addrinfo));
512 hints.ai_flags = AI_NUMERICHOST; /* allow hostname? */
513 hints.ai_family = AF_INET6;
514 hints.ai_socktype = SOCK_RAW;
515 hints.ai_protocol = IPPROTO_ICMPV6;
517 ret_ga = getaddrinfo(optarg, NULL, &hints, &res);
519 errx(1, "invalid source address: %s",
520 gai_strerror(ret_ga));
523 * res->ai_family must be AF_INET6 and res->ai_addrlen
524 * must be sizeof(src).
526 memcpy(&src, res->ai_addr, res->ai_addrlen);
527 srclen = res->ai_addrlen;
530 options |= F_SRCADDR;
532 case 's': /* size of packet to send */
533 datalen = strtol(optarg, &e, 10);
534 if (datalen <= 0 || *optarg == '\0' || *e != '\0')
535 errx(1, "illegal datalen value -- %s", optarg);
536 if (datalen > MAXDATALEN) {
538 "datalen value too large, maximum is %d",
543 options &= ~F_NOUSERDATA;
544 options |= F_SUPTYPES;
547 options |= F_VERBOSE;
550 options &= ~F_NOUSERDATA;
554 options &= ~F_NOUSERDATA;
555 options |= F_FQDNOLD;
558 #ifdef IPSEC_POLICY_IPSEC
561 if (!strncmp("in", optarg, 2)) {
562 if ((policy_in = strdup(optarg)) == NULL)
564 } else if (!strncmp("out", optarg, 3)) {
565 if ((policy_out = strdup(optarg)) == NULL)
568 errx(1, "invalid security policy");
572 options |= F_AUTHHDR;
575 options |= F_ENCRYPT;
577 #endif /*IPSEC_POLICY_IPSEC*/
594 #ifdef IPV6_RECVRTHDR /* 2292bis */
595 rthlen = CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0,
598 rthlen = inet6_rthdr_space(IPV6_RTHDR_TYPE_0, argc - 1);
601 errx(1, "too many intermediate hops");
607 if (options & F_NIGROUP) {
608 target = nigroup(argv[argc - 1]);
609 if (target == NULL) {
614 target = argv[argc - 1];
617 memset(&hints, 0, sizeof(struct addrinfo));
618 hints.ai_flags = AI_CANONNAME;
619 hints.ai_family = AF_INET6;
620 hints.ai_socktype = SOCK_RAW;
621 hints.ai_protocol = IPPROTO_ICMPV6;
623 ret_ga = getaddrinfo(target, NULL, &hints, &res);
625 errx(1, "%s", gai_strerror(ret_ga));
626 if (res->ai_canonname)
627 hostname = res->ai_canonname;
632 errx(1, "getaddrinfo failed");
634 (void)memcpy(&dst, res->ai_addr, res->ai_addrlen);
636 if ((s = socket(res->ai_family, res->ai_socktype,
637 res->ai_protocol)) < 0)
640 /* set the source address if specified. */
641 if ((options & F_SRCADDR) &&
642 bind(s, (struct sockaddr *)&src, srclen) != 0) {
646 /* set the gateway (next hop) if specified */
648 struct addrinfo ghints, *gres;
651 memset(&ghints, 0, sizeof(ghints));
652 ghints.ai_family = AF_INET6;
653 ghints.ai_socktype = SOCK_RAW;
654 ghints.ai_protocol = IPPROTO_ICMPV6;
656 error = getaddrinfo(gateway, NULL, &hints, &gres);
658 errx(1, "getaddrinfo for the gateway %s: %s",
659 gateway, gai_strerror(error));
661 if (gres->ai_next && (options & F_VERBOSE))
662 warnx("gateway resolves to multiple addresses");
664 if (setsockopt(s, IPPROTO_IPV6, IPV6_NEXTHOP,
665 gres->ai_addr, gres->ai_addrlen)) {
666 err(1, "setsockopt(IPV6_NEXTHOP)");
673 * let the kerel pass extension headers of incoming packets,
674 * for privileged socket options
676 if ((options & F_VERBOSE) != 0) {
679 #ifdef IPV6_RECVHOPOPTS
680 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
682 err(1, "setsockopt(IPV6_RECVHOPOPTS)");
683 #else /* old adv. API */
684 if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPOPTS, &opton,
686 err(1, "setsockopt(IPV6_HOPOPTS)");
688 #ifdef IPV6_RECVDSTOPTS
689 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
691 err(1, "setsockopt(IPV6_RECVDSTOPTS)");
692 #else /* old adv. API */
693 if (setsockopt(s, IPPROTO_IPV6, IPV6_DSTOPTS, &opton,
695 err(1, "setsockopt(IPV6_DSTOPTS)");
697 #ifdef IPV6_RECVRTHDRDSTOPTS
698 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton,
700 err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)");
704 /* revoke root privilege */
708 if ((options & F_FLOOD) && (options & F_INTERVAL))
709 errx(1, "-f and -i incompatible options");
711 if ((options & F_NOUSERDATA) == 0) {
712 if (datalen >= sizeof(struct tv32)) {
713 /* we can time transfer */
717 /* in F_VERBOSE case, we may get non-echoreply packets*/
718 if (options & F_VERBOSE)
719 packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
721 packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
723 /* suppress timing for node information query */
726 packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
729 if (!(packet = (u_char *)malloc((u_int)packlen)))
730 err(1, "Unable to allocate packet");
731 if (!(options & F_PINGFILLED))
732 for (i = ICMP6ECHOLEN; i < packlen; ++i)
735 ident = getpid() & 0xFFFF;
736 #ifndef HAVE_ARC4RANDOM
737 gettimeofday(&seed, NULL);
738 srand((unsigned int)(seed.tv_sec ^ seed.tv_usec ^ (long)ident));
739 memset(nonce, 0, sizeof(nonce));
740 for (i = 0; i < sizeof(nonce); i += sizeof(int))
741 *((int *)&nonce[i]) = rand();
743 memset(nonce, 0, sizeof(nonce));
744 for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t))
745 *((u_int32_t *)&nonce[i]) = arc4random();
748 if (options & F_DONTFRAG)
749 if (setsockopt(s, IPPROTO_IPV6, IPV6_DONTFRAG,
750 &optval, sizeof(optval)) == -1)
751 err(1, "IPV6_DONTFRAG");
754 if (options & F_SO_DEBUG)
755 (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
757 optval = IPV6_DEFHLIM;
758 if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
759 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
760 &optval, sizeof(optval)) == -1)
761 err(1, "IPV6_MULTICAST_HOPS");
762 #ifdef IPV6_USE_MIN_MTU
764 optval = mflag > 1 ? 0 : 1;
766 if (setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
767 &optval, sizeof(optval)) == -1)
768 err(1, "setsockopt(IPV6_USE_MIN_MTU)");
770 #ifdef IPV6_RECVPATHMTU
773 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPATHMTU,
774 &optval, sizeof(optval)) == -1)
775 err(1, "setsockopt(IPV6_RECVPATHMTU)");
777 #endif /* IPV6_RECVPATHMTU */
778 #endif /* IPV6_USE_MIN_MTU */
781 #ifdef IPSEC_POLICY_IPSEC
782 if (options & F_POLICY) {
783 if (setpolicy(s, policy_in) < 0)
784 errx(1, "%s", ipsec_strerror());
785 if (setpolicy(s, policy_out) < 0)
786 errx(1, "%s", ipsec_strerror());
789 if (options & F_AUTHHDR) {
790 optval = IPSEC_LEVEL_REQUIRE;
791 #ifdef IPV6_AUTH_TRANS_LEVEL
792 if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
793 &optval, sizeof(optval)) == -1)
794 err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
796 if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
797 &optval, sizeof(optval)) == -1)
798 err(1, "setsockopt(IPV6_AUTH_LEVEL)");
801 if (options & F_ENCRYPT) {
802 optval = IPSEC_LEVEL_REQUIRE;
803 if (setsockopt(s, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
804 &optval, sizeof(optval)) == -1)
805 err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
807 #endif /*IPSEC_POLICY_IPSEC*/
812 struct icmp6_filter filt;
813 if (!(options & F_VERBOSE)) {
814 ICMP6_FILTER_SETBLOCKALL(&filt);
815 if ((options & F_FQDN) || (options & F_FQDNOLD) ||
816 (options & F_NODEADDR) || (options & F_SUPTYPES))
817 ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
819 ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
821 ICMP6_FILTER_SETPASSALL(&filt);
823 if (setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
825 err(1, "setsockopt(ICMP6_FILTER)");
827 #endif /*ICMP6_FILTER*/
829 /* let the kerel pass extension headers of incoming packets */
830 if ((options & F_VERBOSE) != 0) {
833 #ifdef IPV6_RECVRTHDR
834 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
836 err(1, "setsockopt(IPV6_RECVRTHDR)");
837 #else /* old adv. API */
838 if (setsockopt(s, IPPROTO_IPV6, IPV6_RTHDR, &opton,
840 err(1, "setsockopt(IPV6_RTHDR)");
846 if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
847 if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
848 &optval, sizeof(optval)) == -1)
849 err(1, "IPV6_MULTICAST_LOOP");
852 /* Specify the outgoing interface and/or the source address */
854 ip6optlen += CMSG_SPACE(sizeof(struct in6_pktinfo));
857 ip6optlen += CMSG_SPACE(sizeof(int));
859 /* set IP6 packet options */
861 if ((scmsg = (char *)malloc(ip6optlen)) == 0)
862 errx(1, "can't allocate enough memory");
863 smsghdr.msg_control = (caddr_t)scmsg;
864 smsghdr.msg_controllen = ip6optlen;
865 scmsgp = (struct cmsghdr *)scmsg;
868 pktinfo = (struct in6_pktinfo *)(CMSG_DATA(scmsgp));
869 memset(pktinfo, 0, sizeof(*pktinfo));
870 scmsgp->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
871 scmsgp->cmsg_level = IPPROTO_IPV6;
872 scmsgp->cmsg_type = IPV6_PKTINFO;
873 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
876 /* set the outgoing interface */
878 #ifndef USE_SIN6_SCOPE_ID
879 /* pktinfo must have already been allocated */
880 if ((pktinfo->ipi6_ifindex = if_nametoindex(ifname)) == 0)
881 errx(1, "%s: invalid interface name", ifname);
883 if ((dst.sin6_scope_id = if_nametoindex(ifname)) == 0)
884 errx(1, "%s: invalid interface name", ifname);
887 if (hoplimit != -1) {
888 scmsgp->cmsg_len = CMSG_LEN(sizeof(int));
889 scmsgp->cmsg_level = IPPROTO_IPV6;
890 scmsgp->cmsg_type = IPV6_HOPLIMIT;
891 *(int *)(CMSG_DATA(scmsgp)) = hoplimit;
893 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
896 if (argc > 1) { /* some intermediate addrs are specified */
898 #ifdef USE_RFC2292BIS
902 #ifdef USE_RFC2292BIS
903 rthdrlen = inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1);
904 scmsgp->cmsg_len = CMSG_LEN(rthdrlen);
905 scmsgp->cmsg_level = IPPROTO_IPV6;
906 scmsgp->cmsg_type = IPV6_RTHDR;
907 rthdr = (struct ip6_rthdr *)CMSG_DATA(scmsgp);
908 rthdr = inet6_rth_init((void *)rthdr, rthdrlen,
909 IPV6_RTHDR_TYPE_0, argc - 1);
911 errx(1, "can't initialize rthdr");
912 #else /* old advanced API */
913 if ((scmsgp = (struct cmsghdr *)inet6_rthdr_init(scmsgp,
914 IPV6_RTHDR_TYPE_0)) == 0)
915 errx(1, "can't initialize rthdr");
916 #endif /* USE_RFC2292BIS */
918 for (hops = 0; hops < argc - 1; hops++) {
919 struct addrinfo *iaip;
921 if ((error = getaddrinfo(argv[hops], NULL, &hints,
923 errx(1, "%s", gai_strerror(error));
924 if (SIN6(iaip->ai_addr)->sin6_family != AF_INET6)
926 "bad addr family of an intermediate addr");
928 #ifdef USE_RFC2292BIS
929 if (inet6_rth_add(rthdr,
930 &(SIN6(iaip->ai_addr))->sin6_addr))
931 errx(1, "can't add an intermediate node");
932 #else /* old advanced API */
933 if (inet6_rthdr_add(scmsgp,
934 &(SIN6(iaip->ai_addr))->sin6_addr,
936 errx(1, "can't add an intermediate node");
937 #endif /* USE_RFC2292BIS */
941 #ifndef USE_RFC2292BIS
942 if (inet6_rthdr_lasthop(scmsgp, IPV6_RTHDR_LOOSE))
943 errx(1, "can't set the last flag");
946 scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
949 if (!(options & F_SRCADDR)) {
951 * get the source address. XXX since we revoked the root
952 * privilege, we cannot use a raw socket for this.
955 socklen_t len = sizeof(src);
957 if ((dummy = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
958 err(1, "UDP socket");
960 src.sin6_family = AF_INET6;
961 src.sin6_addr = dst.sin6_addr;
962 src.sin6_port = ntohs(DUMMY_PORT);
963 src.sin6_scope_id = dst.sin6_scope_id;
965 #ifdef USE_RFC2292BIS
967 setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
968 (void *)pktinfo, sizeof(*pktinfo)))
969 err(1, "UDP setsockopt(IPV6_PKTINFO)");
971 if (hoplimit != -1 &&
972 setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
973 (void *)&hoplimit, sizeof(hoplimit)))
974 err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)");
976 if (hoplimit != -1 &&
977 setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
978 (void *)&hoplimit, sizeof(hoplimit)))
979 err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)");
982 setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
983 (void *)rthdr, (rthdr->ip6r_len + 1) << 3))
984 err(1, "UDP setsockopt(IPV6_RTHDR)");
985 #else /* old advanced API */
986 if (smsghdr.msg_control &&
987 setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTOPTIONS,
988 (void *)smsghdr.msg_control, smsghdr.msg_controllen))
989 err(1, "UDP setsockopt(IPV6_PKTOPTIONS)");
992 if (connect(dummy, (struct sockaddr *)&src, len) < 0)
993 err(1, "UDP connect");
995 if (getsockname(dummy, (struct sockaddr *)&src, &len) < 0)
996 err(1, "getsockname");
1001 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
1003 if (datalen > sockbufsize)
1004 warnx("you need -b to increase socket buffer size");
1005 if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
1006 sizeof(sockbufsize)) < 0)
1007 err(1, "setsockopt(SO_SNDBUF)");
1008 if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
1009 sizeof(sockbufsize)) < 0)
1010 err(1, "setsockopt(SO_RCVBUF)");
1013 if (datalen > 8 * 1024) /*XXX*/
1014 warnx("you need -b to increase socket buffer size");
1016 * When pinging the broadcast address, you can get a lot of
1017 * answers. Doing something so evil is useful if you are trying
1018 * to stress the ethernet, or just want to fill the arp cache
1019 * to get some stuff for /etc/ethers.
1022 setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
1028 #ifndef USE_SIN6_SCOPE_ID
1029 #ifdef IPV6_RECVPKTINFO
1030 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
1031 sizeof(optval)) < 0)
1032 warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
1033 #else /* old adv. API */
1034 if (setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &optval,
1035 sizeof(optval)) < 0)
1036 warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */
1038 #endif /* USE_SIN6_SCOPE_ID */
1039 #ifdef IPV6_RECVHOPLIMIT
1040 if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
1041 sizeof(optval)) < 0)
1042 warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
1043 #else /* old adv. API */
1044 if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
1045 sizeof(optval)) < 0)
1046 warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
1049 printf("PING6(%lu=40+8+%lu bytes) ", (unsigned long)(40 + pingerlen()),
1050 (unsigned long)(pingerlen() - 8));
1051 printf("%s --> ", pr_addr((struct sockaddr *)&src, sizeof(src)));
1052 printf("%s\n", pr_addr((struct sockaddr *)&dst, sizeof(dst)));
1054 while (preload--) /* Fire off them quickies. */
1057 (void)signal(SIGINT, onsignal);
1059 (void)signal(SIGINFO, onsignal);
1062 if ((options & F_FLOOD) == 0) {
1063 (void)signal(SIGALRM, onsignal);
1064 itimer.it_interval = interval;
1065 itimer.it_value = interval;
1066 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1067 if (ntransmitted == 0)
1072 fdmasks = howmany(s + 1, NFDBITS) * sizeof(fd_mask);
1073 if ((fdmaskp = malloc(fdmasks)) == NULL)
1077 seenalrm = seenint = 0;
1084 struct iovec iov[2];
1086 /* signal handling */
1088 /* last packet sent, timeout reached? */
1089 if (npackets && ntransmitted >= npackets)
1108 if (options & F_FLOOD) {
1114 timeout.tv_usec = 10000;
1126 fdmaskp[0].events = POLLIN;
1127 cc = poll(fdmaskp, 1, timeout);
1129 memset(fdmaskp, 0, fdmasks);
1131 cc = select(s + 1, fdmaskp, NULL, NULL, tv);
1134 if (errno != EINTR) {
1146 m.msg_name = (caddr_t)&from;
1147 m.msg_namelen = sizeof(from);
1148 memset(&iov, 0, sizeof(iov));
1149 iov[0].iov_base = (caddr_t)packet;
1150 iov[0].iov_len = packlen;
1153 memset(cm, 0, CONTROLLEN);
1154 m.msg_control = (void *)cm;
1155 m.msg_controllen = CONTROLLEN;
1157 cc = recvmsg(s, &m, 0);
1159 if (errno != EINTR) {
1164 } else if (cc == 0) {
1168 * receive control messages only. Process the
1169 * exceptions (currently the only possiblity is
1170 * a path MTU notification.)
1172 if ((mtu = get_pathmtu(&m)) > 0) {
1173 if ((options & F_VERBOSE) != 0) {
1174 printf("new path MTU (%d) is "
1181 * an ICMPv6 message (probably an echoreply) arrived.
1183 pr_pack(packet, cc, &m);
1185 if (((options & F_ONCE) != 0 && nreceived > 0) ||
1186 (npackets > 0 && nreceived >= npackets))
1188 if (ntransmitted - nreceived - 1 > nmissedmax) {
1189 nmissedmax = ntransmitted - nreceived - 1;
1190 if (options & F_MISSED)
1191 (void)write(STDOUT_FILENO, &BBELL, 1);
1207 exit(nreceived == 0 ? 2 : 0);
1231 * This routine transmits another ping6.
1236 struct itimerval itimer;
1242 * If we're not transmitting any more packets, change the timer
1243 * to wait two round-trip times if we've received any packets or
1244 * ten seconds if we haven't.
1248 itimer.it_value.tv_sec = 2 * tmax / 1000;
1249 if (itimer.it_value.tv_sec == 0)
1250 itimer.it_value.tv_sec = 1;
1252 itimer.it_value.tv_sec = MAXWAIT;
1253 itimer.it_interval.tv_sec = 0;
1254 itimer.it_interval.tv_usec = 0;
1255 itimer.it_value.tv_usec = 0;
1257 (void)signal(SIGALRM, onsignal);
1258 (void)setitimer(ITIMER_REAL, &itimer, NULL);
1263 * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
1264 * will be added on by the kernel. The ID field is our UNIX process ID,
1265 * and the sequence number is an ascending integer. The first 8 bytes
1266 * of the data portion are used to hold a UNIX "timeval" struct in VAX
1267 * byte-order, to compute the round-trip time.
1274 if (options & F_FQDN)
1275 l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1276 else if (options & F_FQDNOLD)
1278 else if (options & F_NODEADDR)
1279 l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1280 else if (options & F_SUPTYPES)
1283 l = ICMP6ECHOLEN + datalen;
1291 struct icmp6_hdr *icp;
1292 struct iovec iov[2];
1294 struct icmp6_nodeinfo *nip;
1297 if (npackets && ntransmitted >= npackets)
1298 return(-1); /* no more transmission */
1300 icp = (struct icmp6_hdr *)outpack;
1301 nip = (struct icmp6_nodeinfo *)outpack;
1302 memset(icp, 0, sizeof(*icp));
1303 icp->icmp6_cksum = 0;
1304 seq = ntransmitted++;
1305 CLR(seq % mx_dup_ck);
1307 if (options & F_FQDN) {
1308 icp->icmp6_type = ICMP6_NI_QUERY;
1309 icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
1310 nip->ni_qtype = htons(NI_QTYPE_FQDN);
1311 nip->ni_flags = htons(0);
1313 memcpy(nip->icmp6_ni_nonce, nonce,
1314 sizeof(nip->icmp6_ni_nonce));
1315 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1317 memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
1318 sizeof(dst.sin6_addr));
1319 cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1321 } else if (options & F_FQDNOLD) {
1322 /* packet format in 03 draft - no Subject data on queries */
1323 icp->icmp6_type = ICMP6_NI_QUERY;
1324 icp->icmp6_code = 0; /* code field is always 0 */
1325 nip->ni_qtype = htons(NI_QTYPE_FQDN);
1326 nip->ni_flags = htons(0);
1328 memcpy(nip->icmp6_ni_nonce, nonce,
1329 sizeof(nip->icmp6_ni_nonce));
1330 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1334 } else if (options & F_NODEADDR) {
1335 icp->icmp6_type = ICMP6_NI_QUERY;
1336 icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
1337 nip->ni_qtype = htons(NI_QTYPE_NODEADDR);
1338 nip->ni_flags = naflags;
1340 memcpy(nip->icmp6_ni_nonce, nonce,
1341 sizeof(nip->icmp6_ni_nonce));
1342 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1344 memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
1345 sizeof(dst.sin6_addr));
1346 cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
1348 } else if (options & F_SUPTYPES) {
1349 icp->icmp6_type = ICMP6_NI_QUERY;
1350 icp->icmp6_code = ICMP6_NI_SUBJ_FQDN; /*empty*/
1351 nip->ni_qtype = htons(NI_QTYPE_SUPTYPES);
1352 /* we support compressed bitmap */
1353 nip->ni_flags = NI_SUPTYPE_FLAG_COMPRESS;
1355 memcpy(nip->icmp6_ni_nonce, nonce,
1356 sizeof(nip->icmp6_ni_nonce));
1357 *(u_int16_t *)nip->icmp6_ni_nonce = ntohs(seq);
1361 icp->icmp6_type = ICMP6_ECHO_REQUEST;
1362 icp->icmp6_code = 0;
1363 icp->icmp6_id = htons(ident);
1364 icp->icmp6_seq = ntohs(seq);
1368 (void)gettimeofday(&tv, NULL);
1369 tv32 = (struct tv32 *)&outpack[ICMP6ECHOLEN];
1370 tv32->tv32_sec = htonl(tv.tv_sec);
1371 tv32->tv32_usec = htonl(tv.tv_usec);
1373 cc = ICMP6ECHOLEN + datalen;
1377 if (pingerlen() != cc)
1378 errx(1, "internal error; length mismatch");
1381 smsghdr.msg_name = (caddr_t)&dst;
1382 smsghdr.msg_namelen = sizeof(dst);
1383 memset(&iov, 0, sizeof(iov));
1384 iov[0].iov_base = (caddr_t)outpack;
1385 iov[0].iov_len = cc;
1386 smsghdr.msg_iov = iov;
1387 smsghdr.msg_iovlen = 1;
1389 i = sendmsg(s, &smsghdr, 0);
1391 if (i < 0 || i != cc) {
1394 (void)printf("ping6: wrote %s %d chars, ret=%d\n",
1397 if (!(options & F_QUIET) && options & F_FLOOD)
1398 (void)write(STDOUT_FILENO, &DOT, 1);
1404 myechoreply(const struct icmp6_hdr *icp)
1406 if (ntohs(icp->icmp6_id) == ident)
1413 mynireply(const struct icmp6_nodeinfo *nip)
1415 if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
1416 nonce + sizeof(u_int16_t),
1417 sizeof(nonce) - sizeof(u_int16_t)) == 0)
1424 dnsdecode(const u_char **sp, const u_char *ep, const u_char *base, char *buf,
1426 /*base for compressed name*/
1430 char cresult[MAXDNAME + 1];
1441 if (i == 0 || cp != *sp) {
1442 if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
1443 return NULL; /*result overrun*/
1449 if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
1450 /* DNS compression */
1454 comp = base + (i & 0x3f);
1455 if (dnsdecode(&comp, cp, base, cresult,
1456 sizeof(cresult)) == NULL)
1458 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1459 return NULL; /*result overrun*/
1461 } else if ((i & 0x3f) == i) {
1463 return NULL; /*source overrun*/
1464 while (i-- > 0 && cp < ep) {
1465 l = snprintf(cresult, sizeof(cresult),
1466 isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
1467 if (l >= sizeof(cresult) || l < 0)
1469 if (strlcat(buf, cresult, bufsiz) >= bufsiz)
1470 return NULL; /*result overrun*/
1474 return NULL; /*invalid label*/
1477 return NULL; /*not terminated*/
1485 * Print out the packet, if it came from us. This logic is necessary
1486 * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
1487 * which arrive ('tis only fair). This permits multiple copies of this
1488 * program to be run without having intermingled output (or statistics!).
1491 pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
1493 #define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
1494 struct icmp6_hdr *icp;
1495 struct icmp6_nodeinfo *ni;
1498 struct sockaddr *from;
1500 u_char *cp = NULL, *dp, *end = buf + cc;
1501 struct in6_pktinfo *pktinfo = NULL;
1502 struct timeval tv, tp;
1504 double triptime = 0;
1509 char dnsname[MAXDNAME + 1];
1511 (void)gettimeofday(&tv, NULL);
1513 if (!mhdr || !mhdr->msg_name ||
1514 mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
1515 ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
1516 if (options & F_VERBOSE)
1517 warnx("invalid peername");
1520 from = (struct sockaddr *)mhdr->msg_name;
1521 fromlen = mhdr->msg_namelen;
1522 if (cc < sizeof(struct icmp6_hdr)) {
1523 if (options & F_VERBOSE)
1524 warnx("packet too short (%d bytes) from %s", cc,
1525 pr_addr(from, fromlen));
1528 if (((mhdr->msg_flags & MSG_CTRUNC) != 0) &&
1529 (options & F_VERBOSE) != 0)
1530 warnx("some control data discarded, insufficient buffer size");
1531 icp = (struct icmp6_hdr *)buf;
1532 ni = (struct icmp6_nodeinfo *)buf;
1535 if ((hoplim = get_hoplim(mhdr)) == -1) {
1536 warnx("failed to get receiving hop limit");
1539 if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
1540 warnx("failed to get receiving packet information");
1544 if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
1545 seq = ntohs(icp->icmp6_seq);
1548 tpp = (struct tv32 *)(icp + 1);
1549 tp.tv_sec = ntohl(tpp->tv32_sec);
1550 tp.tv_usec = ntohl(tpp->tv32_usec);
1552 triptime = ((double)tv.tv_sec) * 1000.0 +
1553 ((double)tv.tv_usec) / 1000.0;
1555 tsumsq += triptime * triptime;
1556 if (triptime < tmin)
1558 if (triptime > tmax)
1562 if (TST(seq % mx_dup_ck)) {
1567 SET(seq % mx_dup_ck);
1571 if (options & F_QUIET)
1574 if (options & F_FLOOD)
1575 (void)write(STDOUT_FILENO, &BSPACE, 1);
1577 if (options & F_AUDIBLE)
1578 (void)write(STDOUT_FILENO, &BBELL, 1);
1579 (void)printf("%d bytes from %s, icmp_seq=%u", cc,
1580 pr_addr(from, fromlen), seq);
1581 (void)printf(" hlim=%d", hoplim);
1582 if ((options & F_VERBOSE) != 0) {
1583 struct sockaddr_in6 dstsa;
1585 memset(&dstsa, 0, sizeof(dstsa));
1586 dstsa.sin6_family = AF_INET6;
1587 dstsa.sin6_len = sizeof(dstsa);
1588 dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
1589 dstsa.sin6_addr = pktinfo->ipi6_addr;
1590 (void)printf(" dst=%s",
1591 pr_addr((struct sockaddr *)&dstsa,
1595 (void)printf(" time=%.3f ms", triptime);
1597 (void)printf("(DUP!)");
1598 /* check the data */
1599 cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1600 dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
1601 for (i = 8; cp < end; ++i, ++cp, ++dp) {
1603 (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
1608 } else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
1609 seq = ntohs(*(u_int16_t *)ni->icmp6_ni_nonce);
1611 if (TST(seq % mx_dup_ck)) {
1616 SET(seq % mx_dup_ck);
1620 if (options & F_QUIET)
1623 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1625 switch (ntohs(ni->ni_code)) {
1626 case ICMP6_NI_SUCCESS:
1628 case ICMP6_NI_REFUSED:
1629 printf("refused, type 0x%x", ntohs(ni->ni_type));
1631 case ICMP6_NI_UNKNOWN:
1632 printf("unknown, type 0x%x", ntohs(ni->ni_type));
1635 printf("unknown code 0x%x, type 0x%x",
1636 ntohs(ni->ni_code), ntohs(ni->ni_type));
1640 switch (ntohs(ni->ni_qtype)) {
1642 printf("NodeInfo NOOP");
1644 case NI_QTYPE_SUPTYPES:
1645 pr_suptypes(ni, end - (u_char *)ni);
1647 case NI_QTYPE_NODEADDR:
1648 pr_nodeaddr(ni, end - (u_char *)ni);
1651 default: /* XXX: for backward compatibility */
1652 cp = (u_char *)ni + ICMP6_NIRLEN;
1653 if (buf[off + ICMP6_NIRLEN] ==
1654 cc - off - ICMP6_NIRLEN - 1)
1659 cp++; /* skip length */
1661 safeputc(*cp & 0xff);
1667 if (dnsdecode((const u_char **)&cp, end,
1668 (const u_char *)(ni + 1), dnsname,
1669 sizeof(dnsname)) == NULL) {
1674 * name-lookup special handling for
1677 if (cp + 1 <= end && !*cp &&
1678 strlen(dnsname) > 0) {
1679 dnsname[strlen(dnsname) - 1] = '\0';
1682 printf("%s%s", i > 0 ? "," : "",
1686 if (options & F_VERBOSE) {
1690 (void)printf(" ("); /*)*/
1692 switch (ni->ni_code) {
1693 case ICMP6_NI_REFUSED:
1694 (void)printf("refused");
1697 case ICMP6_NI_UNKNOWN:
1698 (void)printf("unknown qtype");
1703 if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
1704 /* case of refusion, unknown */
1709 ttl = (int32_t)ntohl(*(u_long *)&buf[off+ICMP6ECHOLEN+8]);
1712 if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
1713 (void)printf("TTL=%d:meaningless",
1717 (void)printf("TTL=%d:invalid",
1720 (void)printf("TTL=%d", ttl);
1730 cp = (u_char *)ni + ICMP6_NIRLEN;
1739 if (buf[off + ICMP6_NIRLEN] !=
1740 cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
1743 (void)printf("invalid namelen:%d/%lu",
1744 buf[off + ICMP6_NIRLEN],
1745 (u_long)cc - off - ICMP6_NIRLEN - 1);
1755 /* We've got something other than an ECHOREPLY */
1756 if (!(options & F_VERBOSE))
1758 (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
1762 if (!(options & F_FLOOD)) {
1763 (void)putchar('\n');
1764 if (options & F_VERBOSE)
1766 (void)fflush(stdout);
1772 pr_exthdrs(struct msghdr *mhdr)
1779 bufp = mhdr->msg_control;
1780 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
1781 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
1782 if (cm->cmsg_level != IPPROTO_IPV6)
1785 bufsize = CONTROLLEN - ((caddr_t)CMSG_DATA(cm) - (caddr_t)bufp);
1788 switch (cm->cmsg_type) {
1790 printf(" HbH Options: ");
1791 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1794 #ifdef IPV6_RTHDRDSTOPTS
1795 case IPV6_RTHDRDSTOPTS:
1797 printf(" Dst Options: ");
1798 pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
1801 printf(" Routing: ");
1802 pr_rthdr(CMSG_DATA(cm), (size_t)bufsize);
1808 #ifdef USE_RFC2292BIS
1810 pr_ip6opt(void *extbuf, size_t bufsize)
1812 struct ip6_hbh *ext;
1815 socklen_t extlen, len, origextlen;
1821 ext = (struct ip6_hbh *)extbuf;
1822 extlen = (ext->ip6h_len + 1) * 8;
1823 printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
1824 (unsigned int)ext->ip6h_len, (unsigned long)extlen);
1827 * Bounds checking on the ancillary data buffer:
1828 * subtract the size of a cmsg structure from the buffer size.
1830 if (bufsize < (extlen + CMSG_SPACE(0))) {
1831 origextlen = extlen;
1832 extlen = bufsize - CMSG_SPACE(0);
1833 warnx("options truncated, showing only %u (total=%u)",
1834 (unsigned int)(extlen / 8 - 1),
1835 (unsigned int)(ext->ip6h_len));
1840 currentlen = inet6_opt_next(extbuf, extlen, currentlen,
1841 &type, &len, &databuf);
1842 if (currentlen == -1)
1846 * Note that inet6_opt_next automatically skips any padding
1851 offset = inet6_opt_get_val(databuf, offset,
1852 &value4, sizeof(value4));
1853 printf(" Jumbo Payload Opt: Length %u\n",
1854 (u_int32_t)ntohl(value4));
1856 case IP6OPT_ROUTER_ALERT:
1858 offset = inet6_opt_get_val(databuf, offset,
1859 &value2, sizeof(value2));
1860 printf(" Router Alert Opt: Type %u\n",
1864 printf(" Received Opt %u len %lu\n",
1865 type, (unsigned long)len);
1871 #else /* !USE_RFC2292BIS */
1874 pr_ip6opt(void *extbuf, size_t bufsize __unused)
1879 #endif /* USE_RFC2292BIS */
1881 #ifdef USE_RFC2292BIS
1883 pr_rthdr(void *extbuf, size_t bufsize)
1885 struct in6_addr *in6;
1886 char ntopbuf[INET6_ADDRSTRLEN];
1887 struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
1888 int i, segments, origsegs, rthsize, size0, size1;
1890 /* print fixed part of the header */
1891 printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
1892 rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
1893 if ((segments = inet6_rth_segments(extbuf)) >= 0) {
1894 printf("%d segments, ", segments);
1895 printf("%d left\n", rh->ip6r_segleft);
1897 printf("segments unknown, ");
1898 printf("%d left\n", rh->ip6r_segleft);
1903 * Bounds checking on the ancillary data buffer. When calculating
1904 * the number of items to show keep in mind:
1905 * - The size of the cmsg structure
1906 * - The size of one segment (the size of a Type 0 routing header)
1907 * - When dividing add a fudge factor of one in case the
1908 * dividend is not evenly divisible by the divisor
1910 rthsize = (rh->ip6r_len + 1) * 8;
1911 if (bufsize < (rthsize + CMSG_SPACE(0))) {
1912 origsegs = segments;
1913 size0 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 0);
1914 size1 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 1);
1915 segments -= (rthsize - (bufsize - CMSG_SPACE(0))) /
1916 (size1 - size0) + 1;
1917 warnx("segments truncated, showing only %d (total=%d)",
1918 segments, origsegs);
1921 for (i = 0; i < segments; i++) {
1922 in6 = inet6_rth_getaddr(extbuf, i);
1924 printf(" [%d]<NULL>\n", i);
1926 if (!inet_ntop(AF_INET6, in6, ntopbuf,
1928 strlcpy(ntopbuf, "?", sizeof(ntopbuf));
1929 printf(" [%d]%s\n", i, ntopbuf);
1937 #else /* !USE_RFC2292BIS */
1940 pr_rthdr(void *extbuf, size_t bufsize __unused)
1945 #endif /* USE_RFC2292BIS */
1948 pr_bitrange(u_int32_t v, int soff, int ii)
1955 /* shift till we have 0x01 */
1956 if ((v & 0x01) == 0) {
1958 printf("-%u", soff + off - 1);
1969 case 0x04: case 0x0c:
1980 /* we have 0x01 with us */
1981 for (i = 0; i < 32 - off; i++) {
1982 if ((v & (0x01 << i)) == 0)
1986 printf(" %u", soff + off);
1994 pr_suptypes(struct icmp6_nodeinfo *ni, size_t nilen)
1995 /* ni->qtype must be SUPTYPES */
1999 const u_char *cp, *end;
2002 u_int16_t words; /*32bit count*/
2005 #define MAXQTYPES (1 << 16)
2009 cp = (u_char *)(ni + 1);
2010 end = ((u_char *)ni) + nilen;
2014 printf("NodeInfo Supported Qtypes");
2015 if (options & F_VERBOSE) {
2016 if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
2017 printf(", compressed bitmap");
2019 printf(", raw bitmap");
2023 clen = (size_t)(end - cp);
2024 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
2025 if (clen == 0 || clen > MAXQTYPES / 8 ||
2031 if (clen < sizeof(cbit) || clen % sizeof(v))
2033 memcpy(&cbit, cp, sizeof(cbit));
2034 if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
2038 clen = ntohs(cbit.words) * sizeof(v);
2039 if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
2044 for (off = 0; off < clen; off += sizeof(v)) {
2045 memcpy(&v, cp + off, sizeof(v));
2046 v = (u_int32_t)ntohl(v);
2047 b = pr_bitrange(v, (int)(cur + off * 8), b);
2049 /* flush the remaining bits */
2050 b = pr_bitrange(0, (int)(cur + off * 8), b);
2054 if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
2055 cur += ntohs(cbit.skip) * 32;
2060 pr_nodeaddr(struct icmp6_nodeinfo *ni, int nilen)
2061 /* ni->qtype must be NODEADDR */
2063 u_char *cp = (u_char *)(ni + 1);
2064 char ntop_buf[INET6_ADDRSTRLEN];
2067 nilen -= sizeof(struct icmp6_nodeinfo);
2069 if (options & F_VERBOSE) {
2070 switch (ni->ni_code) {
2071 case ICMP6_NI_REFUSED:
2072 (void)printf("refused");
2074 case ICMP6_NI_UNKNOWN:
2075 (void)printf("unknown qtype");
2078 if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
2079 (void)printf(" truncated");
2083 printf(" no address\n");
2086 * In icmp-name-lookups 05 and later, TTL of each returned address
2087 * is contained in the resposne. We try to detect the version
2088 * by the length of the data, but note that the detection algorithm
2089 * is incomplete. We assume the latest draft by default.
2091 if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
2097 /* XXX: alignment? */
2098 ttl = (u_int32_t)ntohl(*(u_int32_t *)cp);
2099 cp += sizeof(u_int32_t);
2100 nilen -= sizeof(u_int32_t);
2103 if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
2105 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2106 printf(" %s", ntop_buf);
2108 if (ttl == 0xffffffff) {
2110 * XXX: can this convention be applied to all
2111 * type of TTL (i.e. non-ND TTL)?
2113 printf("(TTL=infty)");
2116 printf("(TTL=%u)", ttl);
2120 nilen -= sizeof(struct in6_addr);
2121 cp += sizeof(struct in6_addr);
2126 get_hoplim(struct msghdr *mhdr)
2130 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2131 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2132 if (cm->cmsg_len == 0)
2135 if (cm->cmsg_level == IPPROTO_IPV6 &&
2136 cm->cmsg_type == IPV6_HOPLIMIT &&
2137 cm->cmsg_len == CMSG_LEN(sizeof(int)))
2138 return(*(int *)CMSG_DATA(cm));
2144 struct in6_pktinfo *
2145 get_rcvpktinfo(struct msghdr *mhdr)
2149 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2150 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2151 if (cm->cmsg_len == 0)
2154 if (cm->cmsg_level == IPPROTO_IPV6 &&
2155 cm->cmsg_type == IPV6_PKTINFO &&
2156 cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo)))
2157 return((struct in6_pktinfo *)CMSG_DATA(cm));
2164 get_pathmtu(struct msghdr *mhdr)
2166 #ifdef IPV6_RECVPATHMTU
2168 struct ip6_mtuinfo *mtuctl = NULL;
2170 for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
2171 cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
2172 if (cm->cmsg_len == 0)
2175 if (cm->cmsg_level == IPPROTO_IPV6 &&
2176 cm->cmsg_type == IPV6_PATHMTU &&
2177 cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
2178 mtuctl = (struct ip6_mtuinfo *)CMSG_DATA(cm);
2181 * If the notified destination is different from
2182 * the one we are pinging, just ignore the info.
2183 * We check the scope ID only when both notified value
2184 * and our own value have non-0 values, because we may
2185 * have used the default scope zone ID for sending,
2186 * in which case the scope ID value is 0.
2188 if (!IN6_ARE_ADDR_EQUAL(&mtuctl->ip6m_addr.sin6_addr,
2190 (mtuctl->ip6m_addr.sin6_scope_id &&
2191 dst.sin6_scope_id &&
2192 mtuctl->ip6m_addr.sin6_scope_id !=
2193 dst.sin6_scope_id)) {
2194 if ((options & F_VERBOSE) != 0) {
2195 printf("path MTU for %s is notified. "
2197 pr_addr((struct sockaddr *)&mtuctl->ip6m_addr,
2198 sizeof(mtuctl->ip6m_addr)));
2204 * Ignore an invalid MTU. XXX: can we just believe
2207 if (mtuctl->ip6m_mtu < IPV6_MMTU)
2210 /* notification for our destination. return the MTU. */
2211 return((int)mtuctl->ip6m_mtu);
2220 * Subtract 2 timeval structs: out = out - in. Out is assumed to
2224 tvsub(struct timeval *out, struct timeval *in)
2226 if ((out->tv_usec -= in->tv_usec) < 0) {
2228 out->tv_usec += 1000000;
2230 out->tv_sec -= in->tv_sec;
2239 onint(int notused __unused)
2254 (void)signal(SIGINT, SIG_DFL);
2255 (void)kill(getpid(), SIGINT);
2263 * Print out statistics.
2269 (void)printf("\n--- %s ping6 statistics ---\n", hostname);
2270 (void)printf("%ld packets transmitted, ", ntransmitted);
2271 (void)printf("%ld packets received, ", nreceived);
2273 (void)printf("+%ld duplicates, ", nrepeats);
2275 if (nreceived > ntransmitted)
2276 (void)printf("-- somebody's duplicating packets!");
2278 (void)printf("%.1f%% packet loss",
2279 ((((double)ntransmitted - nreceived) * 100.0) /
2282 (void)putchar('\n');
2283 if (nreceived && timing) {
2284 /* Only display average to microseconds */
2285 double num = nreceived + nrepeats;
2286 double avg = tsum / num;
2287 double dev = sqrt(tsumsq / num - avg * avg);
2289 "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
2290 tmin, avg, tmax, dev);
2291 (void)fflush(stdout);
2293 (void)fflush(stdout);
2297 static const char *niqcode[] = {
2299 "DNS label", /*or empty*/
2304 static const char *nircode[] = {
2305 "Success", "Refused", "Unknown",
2311 * Print a descriptive string about an ICMP header.
2314 pr_icmph(struct icmp6_hdr *icp, u_char *end)
2316 char ntop_buf[INET6_ADDRSTRLEN];
2317 struct nd_redirect *red;
2318 struct icmp6_nodeinfo *ni;
2319 char dnsname[MAXDNAME + 1];
2323 switch (icp->icmp6_type) {
2324 case ICMP6_DST_UNREACH:
2325 switch (icp->icmp6_code) {
2326 case ICMP6_DST_UNREACH_NOROUTE:
2327 (void)printf("No Route to Destination\n");
2329 case ICMP6_DST_UNREACH_ADMIN:
2330 (void)printf("Destination Administratively "
2333 case ICMP6_DST_UNREACH_BEYONDSCOPE:
2334 (void)printf("Destination Unreachable Beyond Scope\n");
2336 case ICMP6_DST_UNREACH_ADDR:
2337 (void)printf("Destination Host Unreachable\n");
2339 case ICMP6_DST_UNREACH_NOPORT:
2340 (void)printf("Destination Port Unreachable\n");
2343 (void)printf("Destination Unreachable, Bad Code: %d\n",
2347 /* Print returned IP header information */
2348 pr_retip((struct ip6_hdr *)(icp + 1), end);
2350 case ICMP6_PACKET_TOO_BIG:
2351 (void)printf("Packet too big mtu = %d\n",
2352 (int)ntohl(icp->icmp6_mtu));
2353 pr_retip((struct ip6_hdr *)(icp + 1), end);
2355 case ICMP6_TIME_EXCEEDED:
2356 switch (icp->icmp6_code) {
2357 case ICMP6_TIME_EXCEED_TRANSIT:
2358 (void)printf("Time to live exceeded\n");
2360 case ICMP6_TIME_EXCEED_REASSEMBLY:
2361 (void)printf("Frag reassembly time exceeded\n");
2364 (void)printf("Time exceeded, Bad Code: %d\n",
2368 pr_retip((struct ip6_hdr *)(icp + 1), end);
2370 case ICMP6_PARAM_PROB:
2371 (void)printf("Parameter problem: ");
2372 switch (icp->icmp6_code) {
2373 case ICMP6_PARAMPROB_HEADER:
2374 (void)printf("Erroneous Header ");
2376 case ICMP6_PARAMPROB_NEXTHEADER:
2377 (void)printf("Unknown Nextheader ");
2379 case ICMP6_PARAMPROB_OPTION:
2380 (void)printf("Unrecognized Option ");
2383 (void)printf("Bad code(%d) ", icp->icmp6_code);
2386 (void)printf("pointer = 0x%02x\n",
2387 (u_int32_t)ntohl(icp->icmp6_pptr));
2388 pr_retip((struct ip6_hdr *)(icp + 1), end);
2390 case ICMP6_ECHO_REQUEST:
2391 (void)printf("Echo Request");
2392 /* XXX ID + Seq + Data */
2394 case ICMP6_ECHO_REPLY:
2395 (void)printf("Echo Reply");
2396 /* XXX ID + Seq + Data */
2398 case ICMP6_MEMBERSHIP_QUERY:
2399 (void)printf("Listener Query");
2401 case ICMP6_MEMBERSHIP_REPORT:
2402 (void)printf("Listener Report");
2404 case ICMP6_MEMBERSHIP_REDUCTION:
2405 (void)printf("Listener Done");
2407 case ND_ROUTER_SOLICIT:
2408 (void)printf("Router Solicitation");
2410 case ND_ROUTER_ADVERT:
2411 (void)printf("Router Advertisement");
2413 case ND_NEIGHBOR_SOLICIT:
2414 (void)printf("Neighbor Solicitation");
2416 case ND_NEIGHBOR_ADVERT:
2417 (void)printf("Neighbor Advertisement");
2420 red = (struct nd_redirect *)icp;
2421 (void)printf("Redirect\n");
2422 if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
2424 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2425 (void)printf("Destination: %s", ntop_buf);
2426 if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
2428 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2429 (void)printf(" New Target: %s", ntop_buf);
2431 case ICMP6_NI_QUERY:
2432 (void)printf("Node Information Query");
2433 /* XXX ID + Seq + Data */
2434 ni = (struct icmp6_nodeinfo *)icp;
2435 l = end - (u_char *)(ni + 1);
2437 switch (ntohs(ni->ni_qtype)) {
2439 (void)printf("NOOP");
2441 case NI_QTYPE_SUPTYPES:
2442 (void)printf("Supported qtypes");
2445 (void)printf("DNS name");
2447 case NI_QTYPE_NODEADDR:
2448 (void)printf("nodeaddr");
2450 case NI_QTYPE_IPV4ADDR:
2451 (void)printf("IPv4 nodeaddr");
2454 (void)printf("unknown qtype");
2457 if (options & F_VERBOSE) {
2458 switch (ni->ni_code) {
2459 case ICMP6_NI_SUBJ_IPV6:
2460 if (l == sizeof(struct in6_addr) &&
2461 inet_ntop(AF_INET6, ni + 1, ntop_buf,
2462 sizeof(ntop_buf)) != NULL) {
2463 (void)printf(", subject=%s(%s)",
2464 niqcode[ni->ni_code], ntop_buf);
2467 /* backward compat to -W */
2468 (void)printf(", oldfqdn");
2470 (void)printf(", invalid");
2474 case ICMP6_NI_SUBJ_FQDN:
2475 if (end == (u_char *)(ni + 1)) {
2476 (void)printf(", no subject");
2479 printf(", subject=%s", niqcode[ni->ni_code]);
2480 cp = (const u_char *)(ni + 1);
2481 if (dnsdecode(&cp, end, NULL, dnsname,
2482 sizeof(dnsname)) != NULL)
2483 printf("(%s)", dnsname);
2485 printf("(invalid)");
2487 case ICMP6_NI_SUBJ_IPV4:
2488 if (l == sizeof(struct in_addr) &&
2489 inet_ntop(AF_INET, ni + 1, ntop_buf,
2490 sizeof(ntop_buf)) != NULL) {
2491 (void)printf(", subject=%s(%s)",
2492 niqcode[ni->ni_code], ntop_buf);
2494 (void)printf(", invalid");
2497 (void)printf(", invalid");
2502 case ICMP6_NI_REPLY:
2503 (void)printf("Node Information Reply");
2504 /* XXX ID + Seq + Data */
2505 ni = (struct icmp6_nodeinfo *)icp;
2507 switch (ntohs(ni->ni_qtype)) {
2509 (void)printf("NOOP");
2511 case NI_QTYPE_SUPTYPES:
2512 (void)printf("Supported qtypes");
2515 (void)printf("DNS name");
2517 case NI_QTYPE_NODEADDR:
2518 (void)printf("nodeaddr");
2520 case NI_QTYPE_IPV4ADDR:
2521 (void)printf("IPv4 nodeaddr");
2524 (void)printf("unknown qtype");
2527 if (options & F_VERBOSE) {
2528 if (ni->ni_code > sizeof(nircode) / sizeof(nircode[0]))
2529 printf(", invalid");
2531 printf(", %s", nircode[ni->ni_code]);
2535 (void)printf("Bad ICMP type: %d", icp->icmp6_type);
2541 * Print an IP6 header.
2544 pr_iph(struct ip6_hdr *ip6)
2546 u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
2548 char ntop_buf[INET6_ADDRSTRLEN];
2550 tc = *(&ip6->ip6_vfc + 1); /* XXX */
2551 tc = (tc >> 4) & 0x0f;
2552 tc |= (ip6->ip6_vfc << 4);
2554 printf("Vr TC Flow Plen Nxt Hlim\n");
2555 printf(" %1x %02x %05x %04x %02x %02x\n",
2556 (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
2557 ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
2558 if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
2559 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2560 printf("%s->", ntop_buf);
2561 if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
2562 strlcpy(ntop_buf, "?", sizeof(ntop_buf));
2563 printf("%s\n", ntop_buf);
2568 * Return an ascii host address as a dotted quad and optionally with
2572 pr_addr(struct sockaddr *addr, int addrlen)
2574 static char buf[NI_MAXHOST];
2577 if ((options & F_HOSTNAME) == 0)
2578 flag |= NI_NUMERICHOST;
2580 if (getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0, flag) == 0)
2588 * Dump some info on a returned (via ICMPv6) IPv6 packet.
2591 pr_retip(struct ip6_hdr *ip6, u_char *end)
2593 u_char *cp = (u_char *)ip6, nh;
2596 if (end - (u_char *)ip6 < sizeof(*ip6)) {
2601 hlen = sizeof(*ip6);
2605 while (end - cp >= 8) {
2607 case IPPROTO_HOPOPTS:
2609 hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
2610 nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
2612 case IPPROTO_DSTOPTS:
2614 hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
2615 nh = ((struct ip6_dest *)cp)->ip6d_nxt;
2617 case IPPROTO_FRAGMENT:
2619 hlen = sizeof(struct ip6_frag);
2620 nh = ((struct ip6_frag *)cp)->ip6f_nxt;
2622 case IPPROTO_ROUTING:
2624 hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
2625 nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
2630 hlen = (((struct ah *)cp)->ah_len+2) << 2;
2631 nh = ((struct ah *)cp)->ah_nxt;
2634 case IPPROTO_ICMPV6:
2635 printf("ICMP6: type = %d, code = %d\n",
2642 printf("TCP: from port %u, to port %u (decimal)\n",
2643 (*cp * 256 + *(cp + 1)),
2644 (*(cp + 2) * 256 + *(cp + 3)));
2647 printf("UDP: from port %u, to port %u (decimal)\n",
2648 (*cp * 256 + *(cp + 1)),
2649 (*(cp + 2) * 256 + *(cp + 3)));
2652 printf("Unknown Header(%d)\n", nh);
2656 if ((cp += hlen) >= end)
2671 fill(char *bp, char *patp)
2677 for (cp = patp; *cp; cp++)
2679 errx(1, "patterns must be specified as hex digits");
2681 "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
2682 &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
2683 &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
2684 &pat[13], &pat[14], &pat[15]);
2689 kk <= MAXDATALEN - (8 + sizeof(struct tv32) + ii);
2691 for (jj = 0; jj < ii; ++jj)
2692 bp[jj + kk] = pat[jj];
2693 if (!(options & F_QUIET)) {
2694 (void)printf("PATTERN: 0x");
2695 for (jj = 0; jj < ii; ++jj)
2696 (void)printf("%02x", bp[jj] & 0xFF);
2702 #ifdef IPSEC_POLICY_IPSEC
2704 setpolicy(int so __unused, char *policy)
2709 return 0; /* ignore */
2711 buf = ipsec_set_policy(policy, strlen(policy));
2713 errx(1, "%s", ipsec_strerror());
2714 if (setsockopt(s, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
2715 ipsec_get_policylen(buf)) < 0)
2716 warnx("Unable to set IPsec policy");
2730 u_int8_t digest[16];
2733 char hbuf[NI_MAXHOST];
2734 struct in6_addr in6;
2736 p = strchr(name, '.');
2738 p = name + strlen(name);
2740 if (l > 63 || l > sizeof(hbuf) - 1)
2741 return NULL; /*label too long*/
2742 strncpy(hbuf, name, l);
2743 hbuf[(int)l] = '\0';
2745 for (q = name; *q; q++) {
2746 if (isupper(*(unsigned char *)q))
2747 *q = tolower(*(unsigned char *)q);
2750 /* generate 8 bytes of pseudo-random value. */
2751 memset(&ctxt, 0, sizeof(ctxt));
2754 MD5Update(&ctxt, &c, sizeof(c));
2755 MD5Update(&ctxt, (unsigned char *)name, l);
2756 MD5Final(digest, &ctxt);
2758 if (inet_pton(AF_INET6, "ff02::2:0000:0000", &in6) != 1)
2759 return NULL; /*XXX*/
2760 bcopy(digest, &in6.s6_addr[12], 4);
2762 if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
2765 return strdup(hbuf);
2771 (void)fprintf(stderr,
2772 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2777 #if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
2781 #ifdef IPV6_USE_MIN_MTU
2785 "[-a addrtype] [-b bufsiz] [-c count] [-g gateway]\n"
2786 " [-h hoplimit] [-I interface] [-i wait] [-l preload]"
2787 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
2791 " [-p pattern] [-S sourceaddr] [-s packetsize] "
2792 "[hops ...] host\n");