static void sandbox_if_up(Bridge *br) {
assert(br);
if (!br->configured)
return;
char *dev = br->devsandbox;
net_if_up(dev);
if (br->arg_ip_none == 1); // do nothing
else if (br->arg_ip_none == 0 && br->macvlan == 0) {
if (br->ipsandbox == br->ip) {
fprintf(stderr, "Error: %d.%d.%d.%d is interface %s address.\n", PRINT_IP(br->ipsandbox), br->dev);
exit(1);
}
// just assign the address
assert(br->ipsandbox);
if (arg_debug)
printf("Configuring %d.%d.%d.%d address on interface %s\n", PRINT_IP(br->ipsandbox), dev);
net_if_ip(dev, br->ipsandbox, br->mask, br->mtu);
net_if_up(dev);
}
else if (br->arg_ip_none == 0 && br->macvlan == 1) {
// reassign the macvlan address
if (br->ipsandbox == 0)
// ip address assigned by arp-scan for a macvlan device
br->ipsandbox = arp_assign(dev, br); //br->ip, br->mask);
else {
if (br->ipsandbox == br->ip) {
fprintf(stderr, "Error: %d.%d.%d.%d is interface %s address.\n", PRINT_IP(br->ipsandbox), br->dev);
exit(1);
}
uint32_t rv = arp_check(dev, br->ipsandbox, br->ip);
if (rv) {
fprintf(stderr, "Error: the address %d.%d.%d.%d is already in use.\n", PRINT_IP(br->ipsandbox));
exit(1);
}
}
if (arg_debug)
printf("Configuring %d.%d.%d.%d address on interface %s\n", PRINT_IP(br->ipsandbox), dev);
net_if_ip(dev, br->ipsandbox, br->mask, br->mtu);
net_if_up(dev);
}
if (br->ip6sandbox)
net_if_ip6(dev, br->ip6sandbox);
}
void net_configure_sandbox_ip(Bridge *br) {
assert(br);
if (br->configured == 0)
return;
if (br->arg_ip_none)
br->ipsandbox = 0;
else if (br->ipsandbox) {
// check network range
char *rv = in_netrange(br->ipsandbox, br->ip, br->mask);
if (rv) {
fprintf(stderr, "%s", rv);
exit(1);
}
// send an ARP request and check if there is anybody on this IP address
if (arp_check(br->dev, br->ipsandbox, br->ip)) {
fprintf(stderr, "Error: IP address %d.%d.%d.%d is already in use\n", PRINT_IP(br->ipsandbox));
exit(1);
}
}
else
br->ipsandbox = arp_assign(br->dev, br->ip, br->mask);
}