2 * $Id: icmp_timexceed.c,v 1.1.1.1 2000/05/25 00:28:49 route Exp $
5 * icmp_timexceed.c - ICMP_TIMEXCEED Packet assembly tester
7 * Copyright (c) 1998, 1999, 2000 Mike D. Schiffman <mike@infonexus.com>
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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
34 #include "../../include/config.h"
36 #include "../libnet_test.h"
39 main(int argc, char **argv)
43 u_long src_ip, dst_ip;
45 printf("ICMP_TIMEXCEED packet building/writing test\n");
49 while((c = getopt(argc, argv, "d:s:")) != EOF)
54 if (!(dst_ip = libnet_name_resolve(optarg, 1)))
56 fprintf(stderr, "Bad destination IP address: %s\n", optarg);
61 if (!(src_ip = libnet_name_resolve(optarg, 1)))
63 fprintf(stderr, "Bad source IP address: %s\n", optarg);
69 if (!src_ip || !dst_ip)
76 * Get our block of memory for the packet. In this case, we only need
77 * memory for the packet headers.
79 buf = malloc(IP_MAXPACKET);
82 perror("No memory for packet header");
87 * Open our raw IP socket and set IP_HDRINCL.
89 sock = libnet_open_raw_sock(IPPROTO_RAW);
97 * Build the IP header (shown exploded for commenting).
99 libnet_build_ip(LIBNET_ICMP_TIMXCEED_H + LIBNET_IP_H, /* Size of the payload */
100 IPTOS_LOWDELAY | IPTOS_THROUGHPUT, /* IP tos */
104 IPPROTO_ICMP, /* Transport protocol */
105 src_ip, /* Source IP */
106 dst_ip, /* Destination IP */
107 NULL, /* Pointer to payload (none) */
109 buf); /* Packet header memory */
112 * Build the ICMP header.
114 libnet_build_icmp_timeexceed(ICMP_TIMXCEED, /* type */
115 ICMP_TIMXCEED_INTRANS, /* code */
117 IPTOS_LOWDELAY | IPTOS_THROUGHPUT, /* IP tos */
121 IPPROTO_ICMP, /* Transport protocol */
122 dst_ip, /* Source IP */
123 src_ip, /* Destination IP */
124 NULL, /* pointer to payload */
125 0, /* size of payload */
126 buf + LIBNET_IP_H); /* packet header memory */
128 libnet_do_checksum(buf, IPPROTO_ICMP, LIBNET_ICMP_TIMXCEED_H + LIBNET_IP_H);
131 * Write the packet to the network.
133 c = libnet_write_ip(sock, buf, LIBNET_ICMP_TIMXCEED_H + 2 * LIBNET_IP_H);
134 if (c < LIBNET_ICMP_TIMXCEED_H + 2 * LIBNET_IP_H)
136 fprintf(stderr, "libnet_write_ip\n");
138 printf("Completed, wrote %d bytes\n", c);
141 return (c == -1 ? EXIT_FAILURE : EXIT_SUCCESS);
148 fprintf(stderr, "usage: %s -s source_ip -d destination_ip\n ", name);