Reject discovery packets coming from outside the LAN.

Even if that means rejecting packets from ourselves if our IP is not a
"LAN" IP.

1 files changed, 0 insertions, 6 deletions

diff --git a/toxcore/LAN_discovery.c b/toxcore/LAN_discovery.c
index cb10b0aa..2f43ea11 100644
--- a/toxcore/LAN_discovery.c
+++ b/toxcore/LAN_discovery.c
@@ -351,16 +351,10 @@ static int handle_LANdiscovery(void *object, IP_Port source, const uint8_t *pack
     char ip_str[IP_NTOA_LEN] = { 0 };
     ip_ntoa(&source.ip, ip_str, sizeof(ip_str));
 
-    // TODO(iphydf): Add logging for this case.
-    // Why should we reject discovery packets from outside the LAN?
-#if 0
-
     if (ip_is_lan(source.ip) == -1) {
         return 1;
     }
 
-#endif
-
     if (length != CRYPTO_PUBLIC_KEY_SIZE + 1) {
         return 1;
     }