1 /* $OpenBSD: traceroute.h,v 1.1 2016/09/03 22:00:06 benno Exp $ */ 2 /* $NetBSD: traceroute.c,v 1.10 1995/05/21 15:50:45 mycroft Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /*- 34 * Copyright (c) 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * Van Jacobson. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 */ 64 65 66 #include <netinet/ip_var.h> 67 #include <netmpls/mpls.h> 68 #include <sys/cdefs.h> 69 #include <sys/types.h> 70 71 #define DUMMY_PORT 10010 72 73 #define MAX_LSRR ((MAX_IPOPTLEN - 4) / 4) 74 75 #define MPLS_LABEL(m) ((m & MPLS_LABEL_MASK) >> MPLS_LABEL_OFFSET) 76 #define MPLS_EXP(m) ((m & MPLS_EXP_MASK) >> MPLS_EXP_OFFSET) 77 78 /* 79 * Format of the data in a (udp) probe packet. 80 */ 81 struct packetdata { 82 u_char seq; /* sequence number of this packet */ 83 u_int8_t ttl; /* ttl packet left with */ 84 u_char pad[2]; 85 u_int32_t sec; /* time packet left */ 86 u_int32_t usec; 87 } __packed; 88 89 extern struct in_addr gateway[MAX_LSRR + 1]; 90 extern int lsrrlen; 91 extern int32_t sec_perturb; 92 extern int32_t usec_perturb; 93 94 extern u_char packet[512]; 95 extern u_char *outpacket; /* last inbound (icmp) packet */ 96 97 int wait_for_reply(int, struct msghdr *); 98 void dump_packet(void); 99 void build_probe4(int, u_int8_t, int); 100 void build_probe6(int, u_int8_t, int, struct sockaddr *); 101 void send_probe(int, u_int8_t, int, struct sockaddr *); 102 struct udphdr *get_udphdr(struct ip6_hdr *, u_char *); 103 int packet_ok(int, struct msghdr *, int, int, int); 104 int packet_ok4(struct msghdr *, int, int, int); 105 int packet_ok6(struct msghdr *, int, int, int); 106 void icmp_code(int, int, int *, int *); 107 void icmp4_code(int, int *, int *); 108 void icmp6_code(int, int *, int *); 109 void dump_packet(void); 110 void print_exthdr(u_char *, int); 111 void check_tos(struct ip*); 112 void print(struct sockaddr *, int, const char *); 113 const char *inetname(struct sockaddr*); 114 void print_asn(struct sockaddr_storage *); 115 u_short in_cksum(u_short *, int); 116 char *pr_type(u_int8_t); 117 int map_tos(char *, int *); 118 double deltaT(struct timeval *, struct timeval *); 119 120 void gettime(struct timeval *); 121 122 extern int rcvsock; /* receive (icmp) socket file descriptor */ 123 extern int sndsock; /* send (udp) socket file descriptor */ 124 125 extern int rcvhlim; 126 extern struct in6_pktinfo *rcvpktinfo; 127 128 extern int datalen; /* How much data */ 129 130 extern char *hostname; 131 132 extern u_short ident; 133 extern u_int16_t srcport; 134 extern u_int16_t port; /* start udp dest port # for probe packets */ 135 extern u_char proto; 136 137 #define ICMP_CODE 0; 138 139 extern int verbose; 140 extern int waittime; /* time to wait for response (in seconds) */ 141 extern int nflag; /* print addresses numerically */ 142 extern int dump; 143 extern int Aflag; /* lookup ASN */ 144 extern int last_tos; 145 146 extern char *__progname; 147