add so_mark

src/config_parser.c

@@ -361,6 +361,10 @@ static int parse_server(const char *key, const char *value, struct CFG_SERVER *s
         srv->so_mark = atoi(value);
         return 0;
     }
+    if (strcmp(key, "fib") == 0) {
+        srv->fib = atoi(value);
+        return 0;
+    }
     if (strcmp(key, "netif") == 0) {
         srv->netif_index = get_netif_index(value);
         return 0;
@@ -515,6 +519,7 @@ static struct utun_config* parse_config_internal(FILE *fp, const char *filename)
                     goto error;
                 }
                 strcpy(cur_server->name, name);
+                cur_server->fib = -1;
             } else if (cur_section == SECTION_CLIENT) {
                 cur_client = u_calloc(1, sizeof(struct CFG_CLIENT));
                 if (!cur_client) {

src/config_parser.h

@@ -33,6 +33,7 @@ struct CFG_SERVER {
     struct sockaddr_storage ip; // ip:port
     uint32_t netif_index;// if_nameindex, 0 - no interface specified
     int so_mark;
+    int fib;       // FreeBSD FIB (routing table), -1 = don't set
     uint8_t type;  // public/nat/private
     int mtu;
     int loss_rate;  // packet loss rate in percent (0-100), default 0

src/etcp_connections.c

@@ -427,9 +427,18 @@ int etcp_find_free_local_link_id(struct ETCP_CONN* etcp) {
 
 // ===============================
 
-struct ETCP_SOCKET* etcp_socket_add(struct UTUN_INSTANCE* instance, struct sockaddr_storage* ip, uint32_t netif_index, int so_mark, uint8_t type, int mtu, int loss_rate, char* name) {
+struct ETCP_SOCKET* etcp_socket_add(struct UTUN_INSTANCE* instance, struct CFG_SERVER* server) {
     DEBUG_TRACE(DEBUG_CATEGORY_CONNECTION, "");
-    if (!instance) return NULL;
+    if (!instance || !server) return NULL;
+
+    struct sockaddr_storage* ip = &server->ip;
+    uint32_t netif_index = server->netif_index;
+    int so_mark = server->so_mark;
+    int fib = server->fib;
+    uint8_t type = server->type;
+    int mtu = server->mtu ? server->mtu : instance->config->global.mtu;
+    int loss_rate = server->loss_rate;
+    char* name = server->name;
     
     struct ETCP_SOCKET* e_sock = u_calloc(1, sizeof(struct ETCP_SOCKET));
     if (!e_sock) {
@@ -478,6 +487,15 @@ struct ETCP_SOCKET* etcp_socket_add(struct UTUN_INSTANCE* instance, struct socka
         socket_set_mark(e_sock->fd, so_mark);
     }
 
+    // Set FIB for FreeBSD
+#ifdef __FreeBSD__
+    if (fib > 0) {
+        if (setsockopt(e_sock->fd, SOL_SOCKET, SO_SETFIB, &fib, sizeof(fib)) < 0) {
+            DEBUG_WARN(DEBUG_CATEGORY_CONNECTION, "Failed to set FIB %d: %s", fib, strerror(errno));
+        }
+    }
+#endif
+    
     // Bind to interface if specified (Linux only)
 #ifndef _WIN32
     if (netif_index > 0) {
@@ -1257,7 +1275,7 @@ int init_connections(struct UTUN_INSTANCE* instance) {
             }
         }
         
-        struct ETCP_SOCKET* e_sock = etcp_socket_add(instance, &server->ip, server->netif_index, server->so_mark, server->type, server->mtu ? server->mtu : instance->config->global.mtu, server->loss_rate, server->name);
+        struct ETCP_SOCKET* e_sock = etcp_socket_add(instance, server);
         if (e_sock && default_ip != 0) {
             struct in_addr addr;
             addr.s_addr = default_ip;

src/etcp_connections.h

@@ -164,7 +164,7 @@ int init_connections(struct UTUN_INSTANCE* instance);
 
 // SOCKET FUNCTIONS
 // добавляет новый версер (сокет для приёма и отправки кодограмм. обслуживает много подключений)
-struct ETCP_SOCKET* etcp_socket_add(struct UTUN_INSTANCE* instance, struct sockaddr_storage* ip, uint32_t netif_index, int so_mark, uint8_t type, int mtu, int loss_rate, char* name);
+struct ETCP_SOCKET* etcp_socket_add(struct UTUN_INSTANCE* instance, struct CFG_SERVER* server);
 // удаляет сокет и освобождает ресурсы (грохает все его подключения и сокет)
 void etcp_socket_remove(struct ETCP_SOCKET* conn);