Create/bind TCP and UDP listening sockets in pairs.

[tinc] / src / net_socket.c

diff --git a/src/net_socket.c b/src/net_socket.c
index 6cf69f2..39bbbaa 100644 (file)
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: net_socket.c,v 1.1.2.3 2002/02/20 22:37:38 guus Exp $
+    $Id: net_socket.c,v 1.1.2.6 2002/03/01 13:18:54 guus Exp $
 */
 
 #include "config.h"
@@ -70,8 +70,10 @@ int addressfamily = AF_INET;
 int maxtimeout = 900;
 int seconds_till_retry = 5;
 
-int tcp_socket = -1;
-int udp_socket = -1;
+int tcp_socket[MAXSOCKETS];
+int udp_socket[MAXSOCKETS];
+int listen_sockets = 0;
+
 /* Setup sockets */
 
 int setup_listen_socket(sockaddr_t *sa)
@@ -81,6 +83,7 @@ int setup_listen_socket(sockaddr_t *sa)
   int option;
 #ifdef HAVE_LINUX
   char *interface;
+  struct ifreq ifr;
 #endif
 cp
   if((nfd = socket(sa->sa.sa_family, SOCK_STREAM, IPPROTO_TCP)) < 0)
@@ -108,12 +111,16 @@ cp
   setsockopt(nfd, SOL_IP, IP_TOS, &option, sizeof(option));
 
   if(get_config_string(lookup_config(config_tree, "BindToInterface"), &interface))
-    if(setsockopt(nfd, SOL_SOCKET, SO_BINDTODEVICE, interface, strlen(interface)))
-      {
-        close(nfd);
-        syslog(LOG_ERR, _("Can't bind to interface %s: %s"), interface, strerror(errno));
-        return -1;
-      }
+    {
+      memset(&ifr, 0, sizeof(ifr));
+      strncpy(ifr.ifr_ifrn.ifrn_name, interface, IFNAMSIZ);
+      if(setsockopt(nfd, SOL_SOCKET, SO_BINDTODEVICE, &ifr, sizeof(ifr)))
+       {
+          close(nfd);
+          syslog(LOG_ERR, _("Can't bind to interface %s: %s"), interface, strerror(errno));
+          return -1;
+       }
+    }
 #endif
 
   if(bind(nfd, &sa->sa, SALEN(sa->sa)))
@@ -142,6 +149,7 @@ int setup_vpn_in_socket(sockaddr_t *sa)
   int option;
 #ifdef HAVE_LINUX
   char *interface;
+  struct ifreq ifr;
 #endif
 cp
   if((nfd = socket(sa->sa.sa_family, SOCK_DGRAM, IPPROTO_UDP)) < 0)
@@ -162,12 +170,16 @@ cp
   setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, &option, sizeof(option));
 #ifdef HAVE_LINUX
   if(get_config_string(lookup_config(config_tree, "BindToInterface"), &interface))
-    if(setsockopt(nfd, SOL_SOCKET, SO_BINDTODEVICE, interface, strlen(interface)))
-      {
-        close(nfd);
-        syslog(LOG_ERR, _("Can't bind to interface %s: %s"), interface, strerror(errno));
-        return -1;
-      }
+    {
+      memset(&ifr, 0, sizeof(ifr));
+      strncpy(ifr.ifr_ifrn.ifrn_name, interface, IFNAMSIZ);
+      if(setsockopt(nfd, SOL_SOCKET, SO_BINDTODEVICE, &ifr, sizeof(ifr)))
+       {
+          close(nfd);
+          syslog(LOG_ERR, _("Can't bind to interface %s: %s"), interface, strerror(errno));
+          return -1;
+       }
+    }
 #endif
 
   if(bind(nfd, &sa->sa, SALEN(sa->sa)))
@@ -406,13 +418,13 @@ cp
   accept a new tcp connect and create a
   new connection
 */
-int handle_new_meta_connection()
+int handle_new_meta_connection(int sock)
 {
   connection_t *c;
   sockaddr_t sa;
   int fd, len = sizeof(sa);
 cp
-  if((fd = accept(tcp_socket, &sa.sa, &len)) < 0)
+  if((fd = accept(sock, &sa.sa, &len)) < 0)
     {
       syslog(LOG_ERR, _("Accepting a new connection failed: %s"), strerror(errno));
       return -1;