Optimize XDP program when filter logging is disabled.

src/xdp/prog.c

@@ -338,19 +338,22 @@ int xdp_prog_main(struct xdp_md *ctx)
     rule.flow_bps = flow_bps;
     rule.ip_pps = ip_pps;
     rule.ip_bps = ip_bps;
-    rule.now = now;
     rule.pkt_len = pkt_len;
-    rule.src_port = src_port;
+
 #ifdef ENABLE_FILTER_LOGGING
+    rule.now = now;
+    rule.protocol = protocol;
+    rule.src_port = src_port;
     rule.dst_port = dst_port;
 #endif
-    rule.protocol = protocol;
-
+    
     rule.iph = iph;
-    rule.iph6 = iph6;
+    
     rule.tcph = tcph;
     rule.udph = udph;
     rule.icmph = icmph;
+
+    rule.iph6 = iph6;
     rule.icmph6 = icmp6h;
 
 #ifdef USE_NEW_LOOP

src/xdp/utils/rule.h

@@ -19,19 +19,21 @@ struct rule_ctx
     int action;
     u64 block_time;
 
+    int pkt_len;
+
     u64 ip_pps;
     u64 ip_bps;
 
     u64 flow_pps;
     u64 flow_bps;
 
-    u64 now;
-    int pkt_len;
-    u16 src_port;
 #ifdef ENABLE_FILTER_LOGGING
+    u64 now;
+
+    u8 protocol;
+    u16 src_port;
     u16 dst_port;
 #endif
-    u8 protocol;
 
     struct iphdr* iph;
     struct ipv6hdr* iph6;