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Removed the useless redirect_traffic function

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This commit is contained in:
Dimitri Lozeve 2016-06-03 19:58:28 +02:00
parent a46a804df4
commit ca51ffacfa
3 changed files with 0 additions and 69 deletions
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39
arp.c
View file

@ -229,42 +229,3 @@ int listen_arp_frame(int sockfd, struct ether_arp *result)
return -1;
}
/* Redirects all ethernet traffic from one address to another.
args: struct args, which contains the hardware and protocol
addresses of the targets.
Never returns (killed when the main thread terminates).
*/
void *redirect_traffic(void *args)
{
struct args *addresses = (struct args *) args;
int sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
if (sockfd < 0) {
perror("[FAIL] socket()");
exit(EXIT_FAILURE);
}
char buffer[1024];
struct ether_header *eh = (struct ether_header *) buffer;
while (1) {
int len = recv(sockfd, buffer, sizeof(buffer), 0);
if (len <= 0) {
continue;
}
if (eh->ether_dhost == addresses->macaddr1) {
sendto(sockfd, buffer, sizeof(buffer), 0, (struct sockaddr *)&addresses->ip_addr1, sizeof(struct sockaddr));
}
else if (eh->ether_dhost == addresses->macaddr2) {
sendto(sockfd, buffer, sizeof(buffer), 0, (struct sockaddr *)&addresses->ip_addr2, sizeof(struct sockaddr));
}
}
return NULL;
}

16
arp.h
View file

@ -61,21 +61,5 @@ int send_arp_reply(int sockfd, int ifindex, struct sockaddr_in *sender_ip, unsig
int listen_arp_frame(int sockfd, struct ether_arp *result);
struct args {
unsigned char macaddr1[6];
unsigned char macaddr2[6];
struct sockaddr_in ip_addr1;
struct sockaddr_in ip_addr2;
};
/* Redirects all ethernet traffic from one address to another.
args: struct args, which contains the hardware and protocol
addresses of the targets.
Never returns (killed when the main thread terminates).
*/
void *redirect_traffic(void *args);
#endif /* ARP_H_ */

14
arp_mitm.c
View file

@ -161,20 +161,6 @@ int main(int argc, char **argv)
macaddr2[0],macaddr2[1],macaddr2[2],
macaddr2[3],macaddr2[4],macaddr2[5]);
struct args args;
memcpy(args.macaddr1, macaddr1, sizeof(*macaddr1));
memcpy(args.macaddr2, macaddr2, sizeof(*macaddr2));
memcpy(&args.ip_addr1, ipaddr1, sizeof(*ipaddr1));
memcpy(&args.ip_addr2, ipaddr2, sizeof(*ipaddr2));
pthread_t thread;
if (pthread_create(&thread, NULL, redirect_traffic, (void *)&args)) {
perror("[FAIL] pthread_create()");
exit(EXIT_FAILURE);
}
/* We send ARP requests and replies to both targets, impersonating
the other. We use both requests and replies because some devices
(linux > 2.4.x for example) don't update their ARP cache on