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[GNUnet-SVN] r19532 - in gnunet/src: dns exit include vpn


From: gnunet
Subject: [GNUnet-SVN] r19532 - in gnunet/src: dns exit include vpn
Date: Mon, 30 Jan 2012 13:44:32 +0100

Author: grothoff
Date: 2012-01-30 13:44:32 +0100 (Mon, 30 Jan 2012)
New Revision: 19532

Modified:
   gnunet/src/dns/gnunet-service-dns.c
   gnunet/src/exit/gnunet-daemon-exit.c
   gnunet/src/include/gnunet_tun_lib.h
   gnunet/src/vpn/gnunet-service-vpn.c
Log:
-renaming some fields, fixing byte order issues

Modified: gnunet/src/dns/gnunet-service-dns.c
===================================================================
--- gnunet/src/dns/gnunet-service-dns.c 2012-01-30 12:40:52 UTC (rev 19531)
+++ gnunet/src/dns/gnunet-service-dns.c 2012-01-30 12:44:32 UTC (rev 19532)
@@ -384,8 +384,8 @@
 {
   struct GNUNET_MessageHeader *hdr;
   size_t reply_len;
-  uint16_t spt;
-  uint16_t dpt;
+  uint16_t source_port;
+  uint16_t destination_port;
 
   GNUNET_array_grow (rr->client_wait_list,
                     rr->client_wait_list_length,
@@ -455,8 +455,8 @@
        struct sockaddr_in *src = (struct sockaddr_in *) &rr->src_addr;
        struct sockaddr_in *dst = (struct sockaddr_in *) &rr->dst_addr;
        
-       spt = dst->sin_port;
-       dpt = src->sin_port;
+       source_port = dst->sin_port;
+       destination_port = src->sin_port;
        GNUNET_TUN_initialize_ipv4_header (&ip4,
                                           IPPROTO_UDP,
                                           reply_len - off - sizeof (struct 
GNUNET_TUN_IPv4Header),
@@ -471,8 +471,8 @@
        struct sockaddr_in6 *src = (struct sockaddr_in6 *) &rr->src_addr;
        struct sockaddr_in6 *dst = (struct sockaddr_in6 *) &rr->dst_addr;
 
-       spt = dst->sin6_port;
-       dpt = src->sin6_port;
+       source_port = dst->sin6_port;
+       destination_port = src->sin6_port;
        GNUNET_TUN_initialize_ipv6_header (&ip6,
                                           IPPROTO_UDP,
                                           reply_len - sizeof (struct 
GNUNET_TUN_IPv6Header),
@@ -490,8 +490,8 @@
     {
       struct GNUNET_TUN_UdpHeader udp;
 
-      udp.spt = spt;
-      udp.dpt = dpt;
+      udp.source_port = source_port;
+      udp.destination_port = destination_port;
       udp.len = htons (reply_len - off);
       if (AF_INET == rr->src_addr.ss_family)
        GNUNET_TUN_calculate_udp4_checksum (&ip4,
@@ -1235,8 +1235,8 @@
       dsta4->sin_family = AF_INET;
       srca4->sin_addr = ip4->source_address;
       dsta4->sin_addr = ip4->destination_address;
-      srca4->sin_port = udp->spt;
-      dsta4->sin_port = udp->dpt;
+      srca4->sin_port = udp->source_port;
+      dsta4->sin_port = udp->destination_port;
 #if HAVE_SOCKADDR_IN_SIN_LEN
       srca4->sin_len = sizeof (struct sockaddr_in))
       dsta4->sin_len = sizeof (struct sockaddr_in);
@@ -1253,8 +1253,8 @@
       dsta6->sin6_family = AF_INET6;
       srca6->sin6_addr = ip6->source_address;
       dsta6->sin6_addr = ip6->destination_address;
-      srca6->sin6_port = udp->spt;
-      dsta6->sin6_port = udp->dpt;
+      srca6->sin6_port = udp->source_port;
+      dsta6->sin6_port = udp->destination_port;
 #if HAVE_SOCKADDR_IN_SIN_LEN
       srca6->sin6_len = sizeof (struct sockaddr_in6);
       dsta6->sin6_len = sizeof (struct sockaddr_in6);

Modified: gnunet/src/exit/gnunet-daemon-exit.c
===================================================================
--- gnunet/src/exit/gnunet-daemon-exit.c        2012-01-30 12:40:52 UTC (rev 
19531)
+++ gnunet/src/exit/gnunet-daemon-exit.c        2012-01-30 12:44:32 UTC (rev 
19532)
@@ -436,17 +436,17 @@
  *
  * @param service_map map of services (TCP or UDP)
  * @param desc service descriptor
- * @param dpt destination port
+ * @param destination_port destination port
  * @return NULL if we are not aware of such a service
  */
 static struct LocalService *
 find_service (struct GNUNET_CONTAINER_MultiHashMap *service_map,
              const GNUNET_HashCode *desc,
-             uint16_t dpt)
+             uint16_t destination_port)
 {
   char key[sizeof (GNUNET_HashCode) + sizeof (uint16_t)];
 
-  memcpy (&key[0], &dpt, sizeof (uint16_t));
+  memcpy (&key[0], &destination_port, sizeof (uint16_t));
   memcpy (&key[sizeof(uint16_t)], desc, sizeof (GNUNET_HashCode));
   return GNUNET_CONTAINER_multihashmap_get (service_map,
                                            (GNUNET_HashCode *) key);
@@ -480,13 +480,13 @@
  *
  * @param service_map map of services (TCP or UDP)
  * @param name name of the service 
- * @param dpt destination port
+ * @param destination_port destination port
  * @param service service information record to store (service->name will be 
set).
  */
 static void
 store_service (struct GNUNET_CONTAINER_MultiHashMap *service_map,
               const char *name,
-              uint16_t dpt,
+              uint16_t destination_port,
               struct LocalService *service)
 {
   char key[sizeof (GNUNET_HashCode) + sizeof (uint16_t)];
@@ -494,7 +494,7 @@
 
   GNUNET_CRYPTO_hash (name, strlen (name) + 1, &desc);
   service->name = GNUNET_strdup (name);
-  memcpy (&key[0], &dpt, sizeof (uint16_t));
+  memcpy (&key[0], &destination_port, sizeof (uint16_t));
   memcpy (&key[sizeof(uint16_t)], &desc, sizeof (GNUNET_HashCode));
   if (GNUNET_OK !=
       GNUNET_CONTAINER_multihashmap_put (service_map,
@@ -506,7 +506,7 @@
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                _("Got duplicate service records for `%s:%u'\n"),
                name,
-               (unsigned int) dpt);
+               (unsigned int) destination_port);
   }
 }
 
@@ -614,8 +614,8 @@
   const struct GNUNET_TUN_IPv6Header *ipv6;
   const struct GNUNET_TUN_UdpHeader *udp;
   size_t mlen;
-  uint16_t spt;
-  uint16_t dpt;
+  uint16_t source_port;
+  uint16_t destination_port;
   uint8_t protocol;
 
   {
@@ -640,8 +640,8 @@
   /* Find out if this is an ICMP packet in response to an existing
      TCP/UDP packet and if so, figure out ports / protocol of the
      existing session from the IP data in the ICMP payload */
-  spt = 0;
-  dpt = 0;
+  source_port = 0;
+  destination_port = 0;
   protocol = IPPROTO_ICMP;
   switch (af)
   {
@@ -667,8 +667,8 @@
        /* could be TCP or UDP, but both have the ports in the right
           place, so that doesn't matter here */
        udp = (const struct GNUNET_TUN_UdpHeader *) &ipv4[1];
-       spt = ntohs (udp->spt);
-       dpt = ntohs (udp->dpt);
+       source_port = ntohs (udp->source_port);
+       destination_port = ntohs (udp->destination_port);
        /* throw away ICMP payload, won't be useful for the other side anyway */
        pktlen = sizeof (struct GNUNET_TUN_IcmpHeader);
        break;
@@ -699,8 +699,8 @@
        /* could be TCP or UDP, but both have the ports in the right
           place, so that doesn't matter here */
        udp = (const struct GNUNET_TUN_UdpHeader *) &ipv6[1];
-       spt = ntohs (udp->spt);
-       dpt = ntohs (udp->dpt);
+       source_port = ntohs (udp->source_port);
+       destination_port = ntohs (udp->destination_port);
        /* throw away ICMP payload, won't be useful for the other side anyway */
        pktlen = sizeof (struct GNUNET_TUN_IcmpHeader);
        break;
@@ -728,17 +728,17 @@
   case IPPROTO_UDP:
     state = get_redirect_state (af, IPPROTO_UDP,
                                source_ip,
-                               spt,
+                               source_port,
                                destination_ip,
-                               dpt,
+                               destination_port,
                                NULL);
     break;
   case IPPROTO_TCP:
     state = get_redirect_state (af, IPPROTO_TCP,
                                source_ip,
-                               spt,
+                               source_port,
                                destination_ip,
-                               dpt,
+                               destination_port,
                                NULL);
     break;
   default:
@@ -800,11 +800,11 @@
                inet_ntop (af,
                           source_ip,
                           sbuf, sizeof (sbuf)),
-               (unsigned int) ntohs (udp->spt),
+               (unsigned int) ntohs (udp->source_port),
                inet_ntop (af,
                           destination_ip,
                           dbuf, sizeof (dbuf)),
-               (unsigned int) ntohs (udp->dpt));
+               (unsigned int) ntohs (udp->destination_port));
   }
   if (pktlen < sizeof (struct GNUNET_TUN_UdpHeader))
   {
@@ -820,9 +820,9 @@
   }
   state = get_redirect_state (af, IPPROTO_UDP,
                              source_ip,
-                             ntohs (udp->spt),
+                             ntohs (udp->source_port),
                              destination_ip,
-                             ntohs (udp->dpt),
+                             ntohs (udp->destination_port),
                              NULL);
   if (NULL == state)
   {
@@ -881,11 +881,11 @@
                inet_ntop (af,
                           source_ip,
                           sbuf, sizeof (sbuf)),
-               (unsigned int) ntohs (tcp->spt),
+               (unsigned int) ntohs (tcp->source_port),
                inet_ntop (af,
                           destination_ip,
                           dbuf, sizeof (dbuf)),
-               (unsigned int) ntohs (tcp->dpt));
+               (unsigned int) ntohs (tcp->destination_port));
   }
   if (pktlen < sizeof (struct GNUNET_TUN_TcpHeader))
   {
@@ -895,9 +895,9 @@
   }
   state = get_redirect_state (af, IPPROTO_TCP,
                              source_ip, 
-                             ntohs (tcp->spt),
+                             ntohs (tcp->source_port),
                              destination_ip,
-                             ntohs (tcp->dpt),
+                             ntohs (tcp->destination_port),
                              NULL);
   if (NULL == state)
   {
@@ -910,8 +910,8 @@
      sender will need to lookup the correct values anyway */
   memcpy (buf, tcp, pktlen);  
   mtcp = (struct GNUNET_TUN_TcpHeader *) buf;
-  mtcp->spt = 0;
-  mtcp->dpt = 0;
+  mtcp->source_port = 0;
+  mtcp->destination_port = 0;
   mtcp->crc = 0;
 
   mlen = sizeof (struct GNUNET_EXIT_TcpDataMessage) + (pktlen - sizeof (struct 
GNUNET_TUN_TcpHeader));
@@ -1316,8 +1316,8 @@
     {
       struct GNUNET_TUN_UdpHeader *pkt4_udp = (struct GNUNET_TUN_UdpHeader *) 
&pkt4[1];
 
-      pkt4_udp->spt = htons (src_address->port);
-      pkt4_udp->dpt = htons (dst_address->port);
+      pkt4_udp->source_port = htons (src_address->port);
+      pkt4_udp->destination_port = htons (dst_address->port);
       pkt4_udp->len = htons ((uint16_t) payload_length);
       GNUNET_TUN_calculate_udp4_checksum (pkt4,
                                          pkt4_udp,
@@ -1330,8 +1330,8 @@
       struct GNUNET_TUN_TcpHeader *pkt4_tcp = (struct GNUNET_TUN_TcpHeader *) 
&pkt4[1];
       
       *pkt4_tcp = *tcp_header;
-      pkt4_tcp->spt = htons (src_address->port);
-      pkt4_tcp->dpt = htons (dst_address->port);
+      pkt4_tcp->source_port = htons (src_address->port);
+      pkt4_tcp->destination_port = htons (dst_address->port);
       GNUNET_TUN_calculate_tcp4_checksum (pkt4,
                                          pkt4_tcp,
                                          payload,
@@ -1403,8 +1403,8 @@
     {
       struct GNUNET_TUN_UdpHeader *pkt6_udp = (struct GNUNET_TUN_UdpHeader *) 
&pkt6[1];
 
-      pkt6_udp->spt = htons (src_address->port);
-      pkt6_udp->dpt = htons (dst_address->port);
+      pkt6_udp->source_port = htons (src_address->port);
+      pkt6_udp->destination_port = htons (dst_address->port);
       pkt6_udp->len = htons ((uint16_t) payload_length);
       GNUNET_TUN_calculate_udp6_checksum (pkt6,
                                          pkt6_udp,
@@ -1419,8 +1419,8 @@
 
       /* memcpy first here as some TCP header fields are initialized this way! 
*/
       *pkt6_tcp = *tcp_header;
-      pkt6_tcp->spt = htons (src_address->port);
-      pkt6_tcp->dpt = htons (dst_address->port);
+      pkt6_tcp->source_port = htons (src_address->port);
+      pkt6_tcp->destination_port = htons (dst_address->port);
       GNUNET_TUN_calculate_tcp6_checksum (pkt6,
                                          pkt6_tcp,
                                          payload,
@@ -1584,14 +1584,14 @@
              "Received data from %s for forwarding to TCP service %s on port 
%u\n",
              GNUNET_i2s (sender),
              GNUNET_h2s (&start->service_descriptor),
-             (unsigned int) ntohs (start->tcp_header.dpt));  
+             (unsigned int) ntohs (start->tcp_header.destination_port));  
   if (NULL == (state->serv = find_service (tcp_services, 
&start->service_descriptor, 
-                                          ntohs (start->tcp_header.dpt))))
+                                          ntohs 
(start->tcp_header.destination_port))))
   {
     GNUNET_log (GNUNET_ERROR_TYPE_INFO, 
                _("No service found for %s on port %d!\n"),
                "TCP",
-               ntohs (start->tcp_header.dpt));
+               ntohs (start->tcp_header.destination_port));
     GNUNET_STATISTICS_update (stats,
                              gettext_noop ("# TCP requests dropped (no such 
service)"),
                              1, GNUNET_NO);
@@ -1707,10 +1707,10 @@
                inet_ntop (af, 
                           &state->ri.remote_address.address,
                           buf, sizeof (buf)),
-               (unsigned int) ntohs (start->tcp_header.dpt));  
+               (unsigned int) ntohs (start->tcp_header.destination_port));  
   }
   state->ri.remote_address.proto = IPPROTO_TCP;
-  state->ri.remote_address.port = ntohs (start->tcp_header.dpt);
+  state->ri.remote_address.port = ntohs (start->tcp_header.destination_port);
   setup_state_record (state);
   send_tcp_packet_via_tun (&state->ri.remote_address,
                           &state->ri.local_address,
@@ -1913,8 +1913,8 @@
                                     sizeof (struct GNUNET_TUN_TcpHeader),
                                     &state->ri.remote_address.address.ipv4,
                                     &state->ri.local_address.address.ipv4);
-  udp->spt = htons (state->ri.remote_address.port);
-  udp->dpt = htons (state->ri.local_address.port);
+  udp->source_port = htons (state->ri.remote_address.port);
+  udp->destination_port = htons (state->ri.local_address.port);
   udp->len = htons (0);
   udp->crc = htons (0);
 }
@@ -1939,8 +1939,8 @@
                                     sizeof (struct GNUNET_TUN_TcpHeader),
                                     &state->ri.remote_address.address.ipv6,
                                     &state->ri.local_address.address.ipv6);
-  udp->spt = htons (state->ri.remote_address.port);
-  udp->dpt = htons (state->ri.local_address.port);
+  udp->source_port = htons (state->ri.remote_address.port);
+  udp->destination_port = htons (state->ri.local_address.port);
   udp->len = htons (0);
   udp->crc = htons (0);
 }

Modified: gnunet/src/include/gnunet_tun_lib.h
===================================================================
--- gnunet/src/include/gnunet_tun_lib.h 2012-01-30 12:40:52 UTC (rev 19531)
+++ gnunet/src/include/gnunet_tun_lib.h 2012-01-30 12:44:32 UTC (rev 19532)
@@ -70,13 +70,13 @@
  */
 struct GNUNET_TUN_IPv4Header
 {
-  unsigned header_length:4 GNUNET_PACKED;
-  unsigned version:4 GNUNET_PACKED;
+  unsigned int header_length:4 GNUNET_PACKED;
+  unsigned int version:4 GNUNET_PACKED;
   uint8_t diff_serv;
   uint16_t total_length GNUNET_PACKED;
   uint16_t identification GNUNET_PACKED;
-  unsigned flags:3 GNUNET_PACKED;
-  unsigned fragmentation_offset:13 GNUNET_PACKED;
+  unsigned int flags:3 GNUNET_PACKED;
+  unsigned int fragmentation_offset:13 GNUNET_PACKED;
   uint8_t ttl;
   uint8_t protocol;
   uint16_t checksum GNUNET_PACKED;
@@ -90,10 +90,10 @@
  */
 struct GNUNET_TUN_IPv6Header
 {
-  unsigned traffic_class_h:4 GNUNET_PACKED;
-  unsigned version:4 GNUNET_PACKED;
-  unsigned traffic_class_l:4 GNUNET_PACKED;
-  unsigned flow_label:20 GNUNET_PACKED;
+  unsigned int traffic_class_h:4 GNUNET_PACKED;
+  unsigned int version:4 GNUNET_PACKED;
+  unsigned int traffic_class_l:4 GNUNET_PACKED;
+  unsigned int flow_label:20 GNUNET_PACKED;
   uint16_t payload_length GNUNET_PACKED;
   uint8_t next_header;
   uint8_t hop_limit;
@@ -107,28 +107,42 @@
  */
 struct GNUNET_TUN_TcpHeader
 {
-  unsigned spt:16 GNUNET_PACKED;
-  unsigned dpt:16 GNUNET_PACKED;
-  unsigned seq:32 GNUNET_PACKED;
-  unsigned ack:32 GNUNET_PACKED;
+  uint16_t source_port GNUNET_PACKED;
+  uint16_t destination_port GNUNET_PACKED;
+  uint32_t seq GNUNET_PACKED;
+  uint32_t ack GNUNET_PACKED;
+#if __BYTE_ORDER == __LITTLE_ENDIAN       
   /**
    * Reserved.
    */
-  unsigned rsv:4 GNUNET_PACKED;
+  unsigned int reserved : 4 GNUNET_PACKED;
   /**
    * Number of 32-bit words in TCP header.
    */
-  unsigned off:4 GNUNET_PACKED;
-  unsigned flg:8 GNUNET_PACKED;
+  unsigned int off : 4 GNUNET_PACKED;
+#elif __BYTE_ORDER == __BIG_ENDIAN
   /**
+   * Number of 32-bit words in TCP header.
+   */
+  unsigned int off : 4 GNUNET_PACKED;
+  /**
+   * Reserved.
+   */
+  unsigned int reserved : 4 GNUNET_PACKED;
+#endif        
+  uint8_t flags;
+
+  /**
    * Window size.
    */
-  unsigned wsz:16 GNUNET_PACKED;
-  unsigned crc:16 GNUNET_PACKED;
+  uint16_t window_size GNUNET_PACKED;
+
+  uint16_t crc GNUNET_PACKED;
+
   /**
    * Urgent pointer.
    */
-  unsigned urg:16 GNUNET_PACKED;
+  uint16_t urgent_pointer GNUNET_PACKED;
 };
 
 
@@ -137,8 +151,8 @@
  */
 struct GNUNET_TUN_UdpHeader
 {
-  uint16_t spt GNUNET_PACKED;
-  uint16_t dpt GNUNET_PACKED;
+  uint16_t source_port GNUNET_PACKED;
+  uint16_t destination_port GNUNET_PACKED;
   uint16_t len GNUNET_PACKED;
   uint16_t crc GNUNET_PACKED;
 };

Modified: gnunet/src/vpn/gnunet-service-vpn.c
===================================================================
--- gnunet/src/vpn/gnunet-service-vpn.c 2012-01-30 12:40:52 UTC (rev 19531)
+++ gnunet/src/vpn/gnunet-service-vpn.c 2012-01-30 12:44:32 UTC (rev 19532)
@@ -881,8 +881,8 @@
   const struct GNUNET_TUN_UdpHeader *udp;
   const struct GNUNET_TUN_TcpHeader *tcp;
   const struct GNUNET_TUN_IcmpHeader *icmp;
-  uint16_t spt;
-  uint16_t dpt;
+  uint16_t source_port;
+  uint16_t destination_port;
 
   switch (protocol)
   {
@@ -900,14 +900,14 @@
        GNUNET_break_op (0);
        return;
       }
-      spt = ntohs (udp->spt);
-      dpt = ntohs (udp->dpt);
+      source_port = ntohs (udp->source_port);
+      destination_port = ntohs (udp->destination_port);
       get_tunnel_key_from_ips (af,
                               IPPROTO_UDP,
                               source_ip,
-                              spt,
+                              source_port,
                               destination_ip,
-                              dpt,
+                              destination_port,
                               &key);
     }
     break;
@@ -925,14 +925,14 @@
        GNUNET_break_op (0);
        return;
       }
-      spt = ntohs (tcp->spt);
-      dpt = ntohs (tcp->dpt);
+      source_port = ntohs (tcp->source_port);
+      destination_port = ntohs (tcp->destination_port);
       get_tunnel_key_from_ips (af,
                               IPPROTO_TCP,
                               source_ip,
-                              spt,
+                              source_port,
                               destination_ip,
-                              dpt,
+                              destination_port,
                               &key);
     }
     break;
@@ -945,8 +945,8 @@
        return;
       }
       icmp = payload;
-      spt = 0;
-      dpt = 0;
+      source_port = 0;
+      destination_port = 0;
       get_tunnel_key_from_ips (af,
                               IPPROTO_ICMP,
                               source_ip,
@@ -986,13 +986,13 @@
                  "Routing %s packet from %s:%u -> %s:%u to destination 
%s:%u\n",
                  (protocol == IPPROTO_TCP) ? "TCP" : "UDP",
                  inet_ntop (af, source_ip, sbuf, sizeof (sbuf)),
-                 spt,
+                 source_port,
                  inet_ntop (af, destination_ip, dbuf, sizeof (dbuf)),
-                 dpt,
+                 destination_port,
                  inet_ntop (destination->details.exit_destination.af,
                             &destination->details.exit_destination.ip,
                             xbuf, sizeof (xbuf)),
-                 dpt);
+                 destination_port);
     }
   }
   else
@@ -1007,9 +1007,9 @@
                  "Routing %s packet from %s:%u -> %s:%u to service %s at peer 
%s\n",
                  (protocol == IPPROTO_TCP) ? "TCP" : "UDP",
                  inet_ntop (af, source_ip, sbuf, sizeof (sbuf)),
-                 spt,
+                 source_port,
                  inet_ntop (af, destination_ip, dbuf, sizeof (dbuf)),
-                 dpt,
+                 destination_port,
                  GNUNET_h2s 
(&destination->details.service_destination.service_descriptor),
                  GNUNET_i2s 
(&destination->details.service_destination.target));
     }
@@ -1045,8 +1045,8 @@
       ts->source_ip.v6 = * (const struct in6_addr *) source_ip;
       ts->destination_ip.v6 = * (const struct in6_addr *) destination_ip;
     }
-    ts->source_port = spt;
-    ts->destination_port = dpt;
+    ts->source_port = source_port;
+    ts->destination_port = destination_port;
     ts->heap_node = GNUNET_CONTAINER_heap_insert (tunnel_heap,
                                                  ts,
                                                  GNUNET_TIME_absolute_get 
().abs_value);
@@ -1093,8 +1093,8 @@
       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->source_port = (ntohs (udp->source_port) < 32000) ? udp->source_port 
: 0;
+      usm->destination_port = udp->destination_port;
       usm->service_descriptor = 
destination->details.service_destination.service_descriptor;
       memcpy (&usm[1],
              &udp[1],
@@ -1122,8 +1122,8 @@
       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);
-      uim->source_port = (ntohs (udp->spt) < 32000) ? udp->spt : 0;
-      uim->destination_port = udp->dpt;
+      uim->source_port = (ntohs (udp->source_port) < 32000) ? udp->source_port 
: 0;
+      uim->destination_port = udp->destination_port;
       switch (destination->details.exit_destination.af)
       {
       case AF_INET:
@@ -1630,8 +1630,8 @@
                                     sizeof (struct GNUNET_TUN_TcpHeader),
                                     &ts->source_ip.v4,
                                     &ts->destination_ip.v4);
-  udp->spt = htons (ts->source_port);
-  udp->dpt = htons (ts->destination_port);
+  udp->source_port = htons (ts->source_port);
+  udp->destination_port = htons (ts->destination_port);
   udp->len = htons (0);
   udp->crc = htons (0);
 }
@@ -1656,8 +1656,8 @@
                                     sizeof (struct GNUNET_TUN_TcpHeader),
                                     &ts->source_ip.v6,
                                     &ts->destination_ip.v6);
-  udp->spt = htons (ts->source_port);
-  udp->dpt = htons (ts->destination_port);
+  udp->source_port = htons (ts->source_port);
+  udp->destination_port = htons (ts->destination_port);
   udp->len = htons (0);
   udp->crc = htons (0);
 }
@@ -2085,13 +2085,13 @@
                                           &ts->destination_ip.v4,
                                           &ts->source_ip.v4);
        if (0 == ntohs (reply->source_port))
-         udp->spt = htons (ts->destination_port);
+         udp->source_port = htons (ts->destination_port);
        else
-         udp->spt = reply->source_port;
+         udp->source_port = reply->source_port;
        if (0 == ntohs (reply->destination_port))
-         udp->dpt = htons (ts->source_port);
+         udp->destination_port = htons (ts->source_port);
        else
-         udp->dpt = reply->destination_port;
+         udp->destination_port = reply->destination_port;
        udp->len = htons (mlen + sizeof (struct GNUNET_TUN_UdpHeader));
        GNUNET_TUN_calculate_udp4_checksum (ipv4,
                                            udp,
@@ -2130,13 +2130,13 @@
                                           &ts->destination_ip.v6,
                                           &ts->source_ip.v6);
        if (0 == ntohs (reply->source_port))
-         udp->spt = htons (ts->destination_port);
+         udp->source_port = htons (ts->destination_port);
        else
-         udp->spt = reply->source_port;
+         udp->source_port = reply->source_port;
        if (0 == ntohs (reply->destination_port))
-         udp->dpt = htons (ts->source_port);
+         udp->destination_port = htons (ts->source_port);
        else
-         udp->dpt = reply->destination_port;
+         udp->destination_port = reply->destination_port;
        udp->len = htons (mlen + sizeof (struct GNUNET_TUN_UdpHeader));
        GNUNET_TUN_calculate_udp6_checksum (ipv6,
                                            udp,
@@ -2243,8 +2243,8 @@
                                           &ts->destination_ip.v4,
                                           &ts->source_ip.v4);
        *tcp = data->tcp_header;
-       tcp->spt = htons (ts->destination_port);
-       tcp->dpt = htons (ts->source_port);
+       tcp->source_port = htons (ts->destination_port);
+       tcp->destination_port = htons (ts->source_port);
        GNUNET_TUN_calculate_tcp4_checksum (ipv4,
                                            tcp,
                                            &data[1],
@@ -2282,8 +2282,8 @@
                                           &ts->destination_ip.v6,
                                           &ts->source_ip.v6);
        *tcp = data->tcp_header;
-       tcp->spt = htons (ts->destination_port);
-       tcp->dpt = htons (ts->source_port);
+       tcp->source_port = htons (ts->destination_port);
+       tcp->destination_port = htons (ts->source_port);
        GNUNET_TUN_calculate_tcp6_checksum (ipv6,
                                            tcp,
                                            &data[1],




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