133841545SHajimu UMEMOTO /* $KAME: rip6query.c,v 1.11 2001/05/08 04:36:37 itojun Exp $ */ 233841545SHajimu UMEMOTO 37d56d374SYoshinobu Inoue /* 47d56d374SYoshinobu Inoue * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 57d56d374SYoshinobu Inoue * All rights reserved. 67d56d374SYoshinobu Inoue * 77d56d374SYoshinobu Inoue * Redistribution and use in source and binary forms, with or without 87d56d374SYoshinobu Inoue * modification, are permitted provided that the following conditions 97d56d374SYoshinobu Inoue * are met: 107d56d374SYoshinobu Inoue * 1. Redistributions of source code must retain the above copyright 117d56d374SYoshinobu Inoue * notice, this list of conditions and the following disclaimer. 127d56d374SYoshinobu Inoue * 2. Redistributions in binary form must reproduce the above copyright 137d56d374SYoshinobu Inoue * notice, this list of conditions and the following disclaimer in the 147d56d374SYoshinobu Inoue * documentation and/or other materials provided with the distribution. 157d56d374SYoshinobu Inoue * 3. Neither the name of the project nor the names of its contributors 167d56d374SYoshinobu Inoue * may be used to endorse or promote products derived from this software 177d56d374SYoshinobu Inoue * without specific prior written permission. 187d56d374SYoshinobu Inoue * 197d56d374SYoshinobu Inoue * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 207d56d374SYoshinobu Inoue * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 217d56d374SYoshinobu Inoue * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 227d56d374SYoshinobu Inoue * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 237d56d374SYoshinobu Inoue * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 247d56d374SYoshinobu Inoue * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 257d56d374SYoshinobu Inoue * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 267d56d374SYoshinobu Inoue * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 277d56d374SYoshinobu Inoue * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 287d56d374SYoshinobu Inoue * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 297d56d374SYoshinobu Inoue * SUCH DAMAGE. 307d56d374SYoshinobu Inoue * 317d56d374SYoshinobu Inoue * $FreeBSD$ 327d56d374SYoshinobu Inoue */ 337d56d374SYoshinobu Inoue 347d56d374SYoshinobu Inoue #include <stdio.h> 357d56d374SYoshinobu Inoue 367d56d374SYoshinobu Inoue #include <unistd.h> 377d56d374SYoshinobu Inoue #include <stdlib.h> 387d56d374SYoshinobu Inoue #include <string.h> 397d56d374SYoshinobu Inoue #include <ctype.h> 407d56d374SYoshinobu Inoue #include <signal.h> 412b39a7c8SKris Kennaway #include <errno.h> 427d56d374SYoshinobu Inoue #include <err.h> 437d56d374SYoshinobu Inoue 447d56d374SYoshinobu Inoue #include <sys/types.h> 457d56d374SYoshinobu Inoue #include <sys/socket.h> 4633841545SHajimu UMEMOTO #include <sys/queue.h> 4733841545SHajimu UMEMOTO 487d56d374SYoshinobu Inoue #include <net/if.h> 492b39a7c8SKris Kennaway #if defined(__FreeBSD__) && __FreeBSD__ >= 3 507d56d374SYoshinobu Inoue #include <net/if_var.h> 512b39a7c8SKris Kennaway #endif /* __FreeBSD__ >= 3 */ 527d56d374SYoshinobu Inoue #include <netinet/in.h> 537d56d374SYoshinobu Inoue #include <netinet/in_var.h> 547d56d374SYoshinobu Inoue #include <arpa/inet.h> 557d56d374SYoshinobu Inoue #include <netdb.h> 567d56d374SYoshinobu Inoue 577d56d374SYoshinobu Inoue #include "route6d.h" 587d56d374SYoshinobu Inoue 597d56d374SYoshinobu Inoue int s; 607d56d374SYoshinobu Inoue struct sockaddr_in6 sin6; 617d56d374SYoshinobu Inoue struct rip6 *ripbuf; 627d56d374SYoshinobu Inoue 637d56d374SYoshinobu Inoue #define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6)) 647d56d374SYoshinobu Inoue 65784bddbcSKevin Lo int main(int, char **); 66784bddbcSKevin Lo static void usage(void); 67784bddbcSKevin Lo static const char *sa_n2a(struct sockaddr *); 68784bddbcSKevin Lo static const char *inet6_n2a(struct in6_addr *); 697d56d374SYoshinobu Inoue 707d56d374SYoshinobu Inoue int 719a958de5SEd Schouten main(int argc, char *argv[]) 727d56d374SYoshinobu Inoue { 737d56d374SYoshinobu Inoue struct netinfo6 *np; 747d56d374SYoshinobu Inoue struct sockaddr_in6 fsock; 7553d588beSAlexander Kabaev int i, n, len; 767d56d374SYoshinobu Inoue int c; 777d56d374SYoshinobu Inoue int ifidx = -1; 787d56d374SYoshinobu Inoue int error; 7953d588beSAlexander Kabaev socklen_t flen; 807d56d374SYoshinobu Inoue char pbuf[10]; 817d56d374SYoshinobu Inoue struct addrinfo hints, *res; 827d56d374SYoshinobu Inoue 8333841545SHajimu UMEMOTO while ((c = getopt(argc, argv, "I:")) != -1) { 847d56d374SYoshinobu Inoue switch (c) { 857d56d374SYoshinobu Inoue case 'I': 867d56d374SYoshinobu Inoue ifidx = if_nametoindex(optarg); 877d56d374SYoshinobu Inoue if (ifidx == 0) { 887d56d374SYoshinobu Inoue errx(1, "invalid interface %s", optarg); 897d56d374SYoshinobu Inoue /*NOTREACHED*/ 907d56d374SYoshinobu Inoue } 917d56d374SYoshinobu Inoue break; 927d56d374SYoshinobu Inoue default: 937d56d374SYoshinobu Inoue usage(); 947d56d374SYoshinobu Inoue exit(1); 957d56d374SYoshinobu Inoue /*NOTREACHED*/ 967d56d374SYoshinobu Inoue } 977d56d374SYoshinobu Inoue } 987d56d374SYoshinobu Inoue argv += optind; 997d56d374SYoshinobu Inoue argc -= optind; 1007d56d374SYoshinobu Inoue 1017d56d374SYoshinobu Inoue if (argc != 1) { 1027d56d374SYoshinobu Inoue usage(); 10333841545SHajimu UMEMOTO exit(1); 1047d56d374SYoshinobu Inoue } 1057d56d374SYoshinobu Inoue 1067d56d374SYoshinobu Inoue if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1077d56d374SYoshinobu Inoue err(1, "socket"); 1087d56d374SYoshinobu Inoue /*NOTREACHED*/ 1097d56d374SYoshinobu Inoue } 1107d56d374SYoshinobu Inoue 1117d56d374SYoshinobu Inoue /* getaddrinfo is preferred for addr@ifname syntax */ 1127d56d374SYoshinobu Inoue snprintf(pbuf, sizeof(pbuf), "%d", RIP6_PORT); 1137d56d374SYoshinobu Inoue memset(&hints, 0, sizeof(hints)); 1147d56d374SYoshinobu Inoue hints.ai_family = AF_INET6; 1152b39a7c8SKris Kennaway hints.ai_socktype = SOCK_DGRAM; 1167d56d374SYoshinobu Inoue error = getaddrinfo(argv[0], pbuf, &hints, &res); 1177d56d374SYoshinobu Inoue if (error) { 1182b39a7c8SKris Kennaway errx(1, "%s: %s", argv[0], gai_strerror(error)); 1197d56d374SYoshinobu Inoue /*NOTREACHED*/ 1207d56d374SYoshinobu Inoue } 1217d56d374SYoshinobu Inoue if (res->ai_next) { 1227d56d374SYoshinobu Inoue errx(1, "%s: %s", argv[0], "resolved to multiple addrs"); 1237d56d374SYoshinobu Inoue /*NOTREACHED*/ 1247d56d374SYoshinobu Inoue } 1257d56d374SYoshinobu Inoue if (sizeof(sin6) != res->ai_addrlen) { 1267d56d374SYoshinobu Inoue errx(1, "%s: %s", argv[0], "invalid addrlen"); 1277d56d374SYoshinobu Inoue /*NOTREACHED*/ 1287d56d374SYoshinobu Inoue } 1297d56d374SYoshinobu Inoue memcpy(&sin6, res->ai_addr, res->ai_addrlen); 1307d56d374SYoshinobu Inoue if (ifidx >= 0) 1317d56d374SYoshinobu Inoue sin6.sin6_scope_id = ifidx; 1327d56d374SYoshinobu Inoue 1337d56d374SYoshinobu Inoue if ((ripbuf = (struct rip6 *)malloc(BUFSIZ)) == NULL) { 1347d56d374SYoshinobu Inoue err(1, "malloc"); 1357d56d374SYoshinobu Inoue /*NOTREACHED*/ 1367d56d374SYoshinobu Inoue } 1377d56d374SYoshinobu Inoue ripbuf->rip6_cmd = RIP6_REQUEST; 1387d56d374SYoshinobu Inoue ripbuf->rip6_vers = RIP6_VERSION; 1397d56d374SYoshinobu Inoue ripbuf->rip6_res1[0] = 0; 1407d56d374SYoshinobu Inoue ripbuf->rip6_res1[1] = 0; 1417d56d374SYoshinobu Inoue np = ripbuf->rip6_nets; 1427d56d374SYoshinobu Inoue bzero(&np->rip6_dest, sizeof(struct in6_addr)); 1437d56d374SYoshinobu Inoue np->rip6_tag = 0; 1447d56d374SYoshinobu Inoue np->rip6_plen = 0; 1457d56d374SYoshinobu Inoue np->rip6_metric = HOPCNT_INFINITY6; 1467d56d374SYoshinobu Inoue if (sendto(s, ripbuf, RIPSIZE(1), 0, (struct sockaddr *)&sin6, 1477d56d374SYoshinobu Inoue sizeof(struct sockaddr_in6)) < 0) { 1487d56d374SYoshinobu Inoue err(1, "send"); 1497d56d374SYoshinobu Inoue /*NOTREACHED*/ 1507d56d374SYoshinobu Inoue } 1517d56d374SYoshinobu Inoue do { 1527d56d374SYoshinobu Inoue flen = sizeof(fsock); 1537d56d374SYoshinobu Inoue if ((len = recvfrom(s, ripbuf, BUFSIZ, 0, 1547d56d374SYoshinobu Inoue (struct sockaddr *)&fsock, &flen)) < 0) { 1557d56d374SYoshinobu Inoue err(1, "recvfrom"); 1567d56d374SYoshinobu Inoue /*NOTREACHED*/ 1577d56d374SYoshinobu Inoue } 1587d56d374SYoshinobu Inoue printf("Response from %s len %d\n", 1597d56d374SYoshinobu Inoue sa_n2a((struct sockaddr *)&fsock), len); 1607d56d374SYoshinobu Inoue n = (len - sizeof(struct rip6) + sizeof(struct netinfo6)) / 1617d56d374SYoshinobu Inoue sizeof(struct netinfo6); 1627d56d374SYoshinobu Inoue np = ripbuf->rip6_nets; 1637d56d374SYoshinobu Inoue for (i = 0; i < n; i++, np++) { 1647d56d374SYoshinobu Inoue printf("\t%s/%d [%d]", inet6_n2a(&np->rip6_dest), 1657d56d374SYoshinobu Inoue np->rip6_plen, np->rip6_metric); 1667d56d374SYoshinobu Inoue if (np->rip6_tag) 1677d56d374SYoshinobu Inoue printf(" tag=0x%x", ntohs(np->rip6_tag)); 1687d56d374SYoshinobu Inoue printf("\n"); 1697d56d374SYoshinobu Inoue } 1707d56d374SYoshinobu Inoue } while (len == RIPSIZE(24)); 1717d56d374SYoshinobu Inoue 1727d56d374SYoshinobu Inoue exit(0); 1737d56d374SYoshinobu Inoue } 1747d56d374SYoshinobu Inoue 1757d56d374SYoshinobu Inoue static void 1769a958de5SEd Schouten usage(void) 1777d56d374SYoshinobu Inoue { 178d3974088SDag-Erling Smørgrav fprintf(stderr, "usage: rip6query [-I iface] address\n"); 1797d56d374SYoshinobu Inoue } 1807d56d374SYoshinobu Inoue 1817d56d374SYoshinobu Inoue /* getnameinfo() is preferred as we may be able to show ifindex as ifname */ 1827d56d374SYoshinobu Inoue static const char * 1839a958de5SEd Schouten sa_n2a(struct sockaddr *sa) 1847d56d374SYoshinobu Inoue { 1852b39a7c8SKris Kennaway static char buf[NI_MAXHOST]; 1867d56d374SYoshinobu Inoue 1877d56d374SYoshinobu Inoue if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), 1884f101318SHajimu UMEMOTO NULL, 0, NI_NUMERICHOST) != 0) { 1897d56d374SYoshinobu Inoue snprintf(buf, sizeof(buf), "%s", "(invalid)"); 1907d56d374SYoshinobu Inoue } 1917d56d374SYoshinobu Inoue return buf; 1927d56d374SYoshinobu Inoue } 1937d56d374SYoshinobu Inoue 1947d56d374SYoshinobu Inoue static const char * 1959a958de5SEd Schouten inet6_n2a(struct in6_addr *addr) 1967d56d374SYoshinobu Inoue { 1972b39a7c8SKris Kennaway static char buf[NI_MAXHOST]; 1987d56d374SYoshinobu Inoue 1997d56d374SYoshinobu Inoue return inet_ntop(AF_INET6, addr, buf, sizeof(buf)); 2007d56d374SYoshinobu Inoue } 201