fix

xdp/loader.c

@@ -1,4 +1,6 @@
 #include <stdio.h>
+#include <net/if.h>
+#include <linux/if_link.h>
 #include <bpf/libbpf.h>
 #include "bridge_xdp.h"
 

xdp/xdp_ddos_filter.c

@@ -291,7 +291,6 @@ int xdp_ddos_filter(struct xdp_md *ctx) {
         return XDP_PASS;
 
     __u32 src_ip = ip->saddr;
-    __u32 dst_ip = ip->daddr;
 
     // Fast path: redes internas, whitelist e trusted hosts
     if (is_internal_network(src_ip) || is_whitelisted(src_ip)) return XDP_PASS;