[GNUnet-SVN] r19091 - gnunet/src/vpn

[gnunet]

Author: grothoff
Date: 2012-01-11 18:00:52 +0100 (Wed, 11 Jan 2012)
New Revision: 19091

Modified:
   gnunet/src/vpn/gnunet-service-vpn.c
Log:
-generate messages in new mesh format

Modified: gnunet/src/vpn/gnunet-service-vpn.c
===================================================================
--- gnunet/src/vpn/gnunet-service-vpn.c 2012-01-11 15:53:59 UTC (rev 19090)
+++ gnunet/src/vpn/gnunet-service-vpn.c 2012-01-11 17:00:52 UTC (rev 19091)
@@ -704,12 +704,22 @@
       tnq = GNUNET_malloc (sizeof (struct TunnelMessageQueueEntry) + mlen);
       usm = (struct GNUNET_EXIT_UdpServiceMessage *) &tnq[1];
       usm->header.size = htons ((uint16_t) mlen);
+      usm->header.type = htons (GNUNET_MESSAGE_TYPE_VPN_UDP_TO_SERVICE);
+      /* if the source port is below 32000, we assume it has a special
+        meaning; if not, we pick a random port (this is a heuristic) */
+      usm->source_port = (ntohs (udp->spt) < 32000) ? udp->spt : 0;
+      usm->destination_port = udp->dpt;
       usm->service_descriptor = 
destination->details.service_destination.service_descriptor;
-      // FIXME: build message!
+      memcpy (&usm[1],
+             &udp[1],
+             payload_length - sizeof (struct udp_packet));
     }
     else
     {
       struct GNUNET_EXIT_UdpInternetMessage *uim;
+      struct in_addr *ip4dst;
+      struct in6_addr *ip6dst;
+      void *payload;
 
       mlen = sizeof (struct GNUNET_EXIT_UdpInternetMessage) + 
        alen + payload_length - sizeof (struct udp_packet);
@@ -722,9 +732,28 @@
                           mlen);
       uim = (struct GNUNET_EXIT_UdpInternetMessage *) &tnq[1];
       uim->header.size = htons ((uint16_t) mlen);
+      uim->header.type = htons (GNUNET_MESSAGE_TYPE_VPN_UDP_TO_INTERNET); 
       uim->af = htonl (destination->details.exit_destination.af);
-   
-      // FIXME: build message!
+      uim->source_port = (ntohs (udp->spt) < 32000) ? udp->spt : 0;
+      uim->destination_port = udp->dpt;
+      switch (destination->details.exit_destination.af)
+      {
+      case AF_INET:
+       ip4dst = (struct in_addr *) &uim[1];
+       *ip4dst = destination->details.exit_destination.ip.v4;
+       payload = &ip4dst[1];
+       break;
+      case AF_INET6:
+       ip6dst = (struct in6_addr *) &uim[1];
+       *ip6dst = destination->details.exit_destination.ip.v6;
+       payload = &ip6dst[1];
+       break;
+      default:
+       GNUNET_assert (0);
+      }
+      memcpy (payload,
+             &udp[1],
+             payload_length - sizeof (struct udp_packet));
     }
     break;
   case IPPROTO_TCP:
@@ -744,11 +773,20 @@
        tnq = GNUNET_malloc (sizeof (struct TunnelMessageQueueEntry) + mlen);
        tsm = (struct  GNUNET_EXIT_TcpServiceStartMessage *) &tnq[1];
        tsm->header.size = htons ((uint16_t) mlen);
-       // FIXME: build message!
+       tsm->header.type = htons (GNUNET_MESSAGE_TYPE_VPN_TCP_TO_SERVICE_START);
+       tsm->reserved = htonl (0);
+       tsm->service_descriptor = 
destination->details.service_destination.service_descriptor;
+       tsm->tcp_header = *tcp;
+       memcpy (&tsm[1],
+               &tcp[1],
+               payload_length - sizeof (struct tcp_packet));
       }
       else
       {
        struct GNUNET_EXIT_TcpInternetStartMessage *tim;
+       struct in_addr *ip4dst;
+       struct in6_addr *ip6dst;
+       void *payload;
 
        mlen = sizeof (struct GNUNET_EXIT_TcpInternetStartMessage) + 
          alen + payload_length - sizeof (struct tcp_packet);
@@ -760,7 +798,27 @@
        tnq = GNUNET_malloc (sizeof (struct TunnelMessageQueueEntry) + mlen);
        tim = (struct  GNUNET_EXIT_TcpInternetStartMessage *) &tnq[1];
        tim->header.size = htons ((uint16_t) mlen);
-       // FIXME: build message!
+       tim->header.type = htons 
(GNUNET_MESSAGE_TYPE_VPN_TCP_TO_INTERNET_START);
+       tim->af = htonl (destination->details.exit_destination.af);     
+       tim->tcp_header = *tcp;
+       switch (destination->details.exit_destination.af)
+       {
+       case AF_INET:
+         ip4dst = (struct in_addr *) &tim[1];
+         *ip4dst = destination->details.exit_destination.ip.v4;
+         payload = &ip4dst[1];
+         break;
+       case AF_INET6:
+         ip6dst = (struct in6_addr *) &tim[1];
+         *ip6dst = destination->details.exit_destination.ip.v6;
+         payload = &ip6dst[1];
+         break;
+       default:
+         GNUNET_assert (0);
+       }
+       memcpy (payload,
+               &tcp[1],
+               payload_length - sizeof (struct tcp_packet));
       }
     }
     else
@@ -777,7 +835,12 @@
       tnq = GNUNET_malloc (sizeof (struct TunnelMessageQueueEntry) + mlen);
       tdm = (struct  GNUNET_EXIT_TcpDataMessage *) &tnq[1];
       tdm->header.size = htons ((uint16_t) mlen);
-      // FIXME: build message!
+      tdm->header.type = htons (GNUNET_MESSAGE_TYPE_VPN_TCP_DATA);
+      tdm->reserved = htonl (0);
+      tdm->tcp_header = *tcp;
+      memcpy (&tdm[1],
+             &tcp[1],
+             payload_length - sizeof (struct tcp_packet));
      }
     break;
   default: