int main(int argc, const char *argv[])
{
int len, size, tcphdrlen;
u8 *pdata, *http;
u8 dstmac[ETH_ALEN] = {0};
char recvbuf[BUFSIZE];
struct sockaddr_ll sa;
struct ethhdr *ethhdr;
struct iphdr *iphdr;
struct tcphdr *tcphdr;
char *ifname = "wfm";
SOCK:
if ((sock_fd = open_socket(ifname)) < 0) {
perror("open_socket");
exit(EXIT_FAILURE);
}
if ((ifindex = interface_index(ifname)) < 0) {
perror("interface_index");
exit(EXIT_FAILURE);
}
if (interface_addr(ifname, dstmac) < 0) {
perror("interface_addr");
exit(EXIT_FAILURE);
}
memset(&sa, 0, sizeof(sa));
sa.sll_family = AF_PACKET;
sa.sll_protocol = htons(ETH_P_ALL);
sa.sll_ifindex = ifindex;
if (bind(sock_fd, (struct sockaddr *)&sa, sizeof(sa)) == -1)
exit(EXIT_FAILURE);
for ( ; ; ) {
len = recvfrom(sock_fd, recvbuf, BUFSIZE, 0, NULL, NULL);
if (len < 0) {
close(sock_fd);
sleep(3);
goto SOCK;
}
/* process packet ... */
print_packet(recvbuf, len);
/* process packet ... */
}
return 0;
}
InstanceKlass* next_interface() {
return interface_at(interface_index());
}
bool has_visited_all_interfaces() {
return interface_index() >= number_of_interfaces();
}
