static void net_loop(void)
{
unsigned i;
struct cap cap;
signed fds[IFACE_MAX];
signed fdmax = INT_MIN;
struct timeval tv;
tv.tv_sec = 1;
tv.tv_usec = 0;
memset(&cap, 0, sizeof cap);
for (i = 0; i < Iface_Cnt; i++) {
fds[i] = pcap_get_selectable_fd(Pcap[i]);
if (fds[i] > fdmax)
fdmax = fds[i];
}
while (!Shutdown) {
fd_set rd;
signed sel;
FD_ZERO(&rd);
if (Reload_Config) { /* reload config file if requested */
Reload_Config = 0;
printf("Clearing existing rules...\n");
rules_clear();
printf("Reloading config file...\n");
parse_config();
}
for (i = 0; i < Iface_Cnt; i++)
FD_SET(fds[i], &rd);
sel = select(fdmax + 1, &rd, NULL, NULL, NULL);
if (-1 == sel) {
perror("select");
continue;
} else if (0 == sel) {
continue;
}
for (i = 0; i < Iface_Cnt; i++) {
if (!FD_ISSET(fds[i], &rd))
continue;
if (1 != pcap_next_ex(Pcap[i], &cap.pkt[0].data.logic.header, (const unsigned char **)&cap.raw))
continue;
cap.len = (unsigned)cap.pkt[0].data.logic.header->len;
process_packet(i, &cap);
}
}
}
void destroy_config(void)
{
rules_clear(&rules);
}
