ci: debug

CMakeLists.txt

@@ -142,7 +142,7 @@ set(BUILD_SHARED_LIBS OFF CACHE INTERNAL "")
 set(BUILD_STATIC_LIBS ON CACHE INTERNAL "")
 FetchContent_MakeAvailable(llhttp)
 
-target_link_libraries(ua2f mnl netfilter_queue pthread nfnetlink) # disable llhttp_static first
+target_link_libraries(ua2f mnl netfilter_queue pthread nfnetlink llhttp_static)
 
 install(TARGETS ua2f RUNTIME DESTINATION bin)
 

src/handler.c

@@ -242,6 +242,7 @@ void handle_packet(const struct nf_queue *queue, const struct nf_packet *pkt) {
         // will this happen?
         send_verdict(queue, pkt, get_next_mark(pkt, false), NULL);
         syslog(LOG_WARNING, "Received unknown ip packet %x. You may set wrong firewall rules.", pkt->hw_protocol);
+        goto end;
     }
 
     if (type == IPV4) {
@@ -255,6 +256,10 @@ void handle_packet(const struct nf_queue *queue, const struct nf_packet *pkt) {
     const __auto_type tcp_hdr = nfq_tcp_get_hdr(pkt_buff);
     if (tcp_hdr == NULL) {
         // This packet is not tcp, pass it
+        char buf[1000];
+        nfq_ip_snprintf(buf, sizeof(buf), nfq_ip_get_hdr(pkt_buff));
+        printf("Received non-tcp packet: %s\n", buf);
+
         send_verdict(queue, pkt, (struct mark_op){false, 0}, NULL);
         syslog(LOG_WARNING, "Received non-tcp packet. You may set wrong firewall rules.");
         goto end;