bgp: prevent sending NODEINFO to self + own NODEINFO early return

- route_bgp_process_nodeinfo: skip own node_id early, don't add to bgp->nodes
- broadcast loop: skip sending NODEINFO to connection where peer == node_id
- route_bgp_should_send_to: don't send node's NODEINFO to itself
- tests: lower debug level to ERROR, fix keepalive adaptive config

src/route_bgp.c

@@ -843,11 +843,13 @@ int route_bgp_process_nodeinfo(struct ROUTE_BGP* bgp, struct ETCP_CONN* from, co
         struct ROUTE_BGP_CONN_ITEM* item = (struct ROUTE_BGP_CONN_ITEM*)e->data;
         if (item->conn) {
             uint64_t id=item->conn->peer_node_id;
+            if (id != node_id) {
                 int found=0;
                 for (int i=0; i<hop_count; i++) if (hop_list[i]==id) found=1;
                 if (found==0) route_bgp_send_nodeinfo(nodeinfo1, item->conn);
                 else DEBUG_DEBUG(DEBUG_CATEGORY_BGP, "Skip send NODEINFO to node %016llx (loop prevention)",id);
             }
+        }
         e = e->next;
     }
 
@@ -954,6 +956,7 @@ static void route_bgp_add_to_senders(struct ROUTE_BGP* bgp, struct ETCP_CONN* co
 
 static bool route_bgp_should_send_to(const struct NODEINFO_Q* nq, uint64_t target_id) {
     if (!nq || !nq->paths) return false;
+    if (target_id == nq->node.node_id) return false;
     struct ll_entry* e = nq->paths->head;
     while (e) {
         struct NODEINFO_PATH* path = (struct NODEINFO_PATH*)e;

tests/test_bgp_route_exchange.c

@@ -291,8 +291,8 @@ static int cond_bgp_c_to_a_gone(void) {
 // -------------------- Main --------------------
 int main(void) {
     debug_config_init();
-    debug_set_level(DEBUG_LEVEL_INFO);
-    debug_set_categories(DEBUG_CATEGORY_BGP | DEBUG_CATEGORY_ETCP | DEBUG_CATEGORY_CONNECTION);
+    debug_set_level(DEBUG_LEVEL_ERROR);
+    debug_set_categories(DEBUG_CATEGORY_BGP);
     utun_instance_set_tun_init_enabled(0);
 
     if (create_temp_configs() != 0) return 1;

tests/test_bgp_triangle.c

@@ -254,8 +254,8 @@ static int cond_c_one_path(void) { return node_path_count(inst_a, NODE_ID_C) ==
 
 int main(void) {
     debug_config_init();
-    debug_set_level(DEBUG_LEVEL_INFO);
-    debug_set_categories(DEBUG_CATEGORY_BGP | DEBUG_CATEGORY_ETCP | DEBUG_CATEGORY_CONNECTION);
+    debug_set_level(DEBUG_LEVEL_ERROR);
+    debug_set_categories(DEBUG_CATEGORY_BGP);
     utun_instance_set_tun_init_enabled(0);
 
     /* ---------- Pre-generate 5 keypairs ---------- */