Диагностика коллизии линков + детектор дубликата node_id + reality-конфиг autogen

src/routing_layer/conn_mgr_core.c

@@ -102,10 +102,21 @@ uint8_t cm_sock_v6_classify(const struct ETCP_SOCKET* s) {
     return cm_classify_v6_addr(a6);
 }
 
+static void cm_warn_addr_busy(struct ETCP_CONN* conn, struct ETCP_SOCKET* s, struct sockaddr_storage* sa) {
+    struct ETCP_LINK* st = etcp_link_find_by_addr(s, sa, 0);
+    if (st && st->etcp != conn) {
+        DEBUG_WARN(DEBUG_CATEGORY_GENERAL, "conn_mgr: addr %s busy by [%s] state=%d init=%d up=%d (adding for [%s] state=%d)",
+                   sockaddr_storage_to_str(sa).str,
+                   st->etcp->log_name, st->etcp->state, st->etcp->initialized, st->etcp->links_up,
+                   conn->log_name, conn->state);
+    }
+}
+
 void cm_add_v4_link(struct ETCP_CONN* conn, const uint8_t* addr, uint16_t port, struct ETCP_SOCKET* s) {
     struct sockaddr_in sin; memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET;
     memcpy(&sin.sin_addr.s_addr, addr, 4); sin.sin_port = port;
     struct sockaddr_storage sa; memcpy(&sa, &sin, sizeof(sin));
+    cm_warn_addr_busy(conn, s, &sa);
     etcp_link_new(conn, s, &sa, 0);
 }
 
@@ -114,6 +125,7 @@ void cm_add_v6_link(struct ETCP_CONN* conn, const uint8_t addr[16], uint16_t por
     memcpy(&sin6.sin6_addr, addr, 16); sin6.sin6_port = htons(port);
     if (cm_classify_v6_addr(addr) == CM_V6_LL) sin6.sin6_scope_id = s->netif_index;
     struct sockaddr_storage sa; memcpy(&sa, &sin6, sizeof(sin6));
+    cm_warn_addr_busy(conn, s, &sa);
     etcp_link_new(conn, s, &sa, 0);
 }
 
@@ -555,6 +567,7 @@ static void cm_direct_add_links(struct ETCP_CONN* conn, struct CONN_MGR_ENTRY* e
                     if (m->id != a->socket_id) continue;
                     struct ETCP_SOCKET* s = entry->mgr->instance->etcp_sockets;
                     while (s) { if (cm_nat_compatible(s, m->config_type, m->nat_type) && s->local_addr.ss_family == AF_INET) {
+                        cm_warn_addr_busy(conn, s, &sa);
                         if (etcp_link_new(conn, s, &sa, 0)) { any = 1; v4_cnt++; } } s = s->next; }
                     break;
                 }