Fill in next- and lastbutonehop for myself.

[tinc] / src / net.c

diff --git a/src/net.c b/src/net.c
index 7183991..e086d78 100644 (file)
--- a/src/net.c
+++ b/src/net.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.c,v 1.35.4.129 2001/09/01 12:36:06 guus Exp $
+    $Id: net.c,v 1.35.4.133 2001/09/25 13:39:11 guus Exp $
 */
 
 #include "config.h"
@@ -230,6 +230,7 @@ cp
 */
 void send_packet(connection_t *cl, vpn_packet_t *packet)
 {
+  connection_t *hop;
 cp
   if(debug_lvl >= DEBUG_TRAFFIC)
     syslog(LOG_ERR, _("Sending packet of %d bytes to %s (%s)"),
@@ -254,15 +255,28 @@ cp
       return;
     }
 
-  /* Check if it has to go via TCP or UDP... */
-cp
-  if((cl->options | myself->options) & OPTION_TCPONLY)
+  if(myself->options & OPTION_TCPONLY)
     {
-      if(send_tcppacket(cl, packet))
-        terminate_connection(cl, 1);
+      if(send_tcppacket(cl->nexthop, packet))
+        terminate_connection(cl->nexthop, 1);
     }
   else
-    send_udppacket(cl, packet);
+    {
+      if(myself->options & OPTION_INDIRECT)
+        send_udppacket(cl->nexthop, packet);
+      else
+        {
+          hop = cl;
+
+          while(hop->options & OPTION_INDIRECT)
+            if(hop->lastbutonehop == myself)
+              break;
+            else
+              hop = hop->lastbutonehop;
+
+          send_udppacket(hop, packet);
+        }
+    }
 }
 
 /* Broadcast a packet to all active direct connections */
@@ -369,18 +383,25 @@ cp
 cp
   if (!ioctl(tap_fd, TUNSETIFF, (void *) &ifr))
   {
-    syslog(LOG_INFO, _("%s is a tun/tap device"), tapfname);
+    syslog(LOG_INFO, _("%s is a Linux tun/tap device"), tapfname);
     taptype = TAP_TYPE_TUNTAP;
   }
   else
+    if (!ioctl(tap_fd, (('T'<< 8) | 202), (void *) &ifr))
+    {
+      syslog(LOG_INFO, _("%s is a Linux tun/tap device"), tapfname);
+      syslog(LOG_WARNING, _("Old ioctl() request used"));
+      taptype = TAP_TYPE_TUNTAP;
+    }
+    else
  #endif
-  {
-    syslog(LOG_INFO, _("%s is an ethertap device"), tapfname);
-    taptype = TAP_TYPE_ETHERTAP;
-  }
+    {
+      syslog(LOG_INFO, _("%s is a Linux ethertap device"), tapfname);
+      taptype = TAP_TYPE_ETHERTAP;
+    }
 #endif
 #ifdef HAVE_FREEBSD
- syslog(LOG_INFO, _("%s is a tun/tap device"), tapfname);
+ syslog(LOG_INFO, _("%s is a FreeBSD tap device"), tapfname);
  taptype = TAP_TYPE_TUNTAP;
 #endif
 #ifdef HAVE_SOLARIS
@@ -422,7 +443,7 @@ cp
      return -1;
   }
 
-  syslog(LOG_INFO, _("%s is a tun/tap device"), tapfname);
+  syslog(LOG_INFO, _("%s is a Solaris tun device"), tapfname);
 #endif
 
 cp
@@ -955,6 +976,8 @@ cp
 cp
   /* Done */
 
+  myself->nexthop = myself;
+  myself->lastbutonehop = myself;
   myself->status.active = 1;
   id_add(myself);
 
@@ -982,7 +1005,7 @@ cp
     {
       if(setup_outgoing_connection(cfg->data.ptr))   /* function returns 0 when there are no problems */
         retry = 1;
-      cfg = get_config_val(cfg, config_connectto); /* Or else we try the next ConnectTo line */
+      cfg = get_config_val(cfg->next, config_connectto); /* Or else we try the next ConnectTo line */
     }
 
   if(retry)