[gnunet] 01/06: TNG: - Added topology file for tcp icmp nat hole punching test case. - Added code to configure connection attempts to natted peers.

[gnunet]

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t3sserakt pushed a commit to branch master
in repository gnunet.

commit 6de2cb8f7a78d9bf1132100f51c19a6a1cb223c5
Author: t3sserakt <t3ss@posteo.de>
AuthorDate: Fri Jan 27 12:59:05 2023 +0100

    TNG: - Added topology file for tcp icmp nat hole punching test case.
         - Added code to configure connection attempts to natted peers.
---
 src/testing/testing.c                              | 22 +++++++++---------
 .../test_transport_nat_icmp_tcp_topo.conf          |  7 ++++++
 src/transport/transport_api_cmd_connecting_peers.c | 27 +++++++++++++++++++++-
 3 files changed, 44 insertions(+), 12 deletions(-)

diff --git a/src/testing/testing.c b/src/testing/testing.c
index a1161925b..2a9b0309f 100644
--- a/src/testing/testing.c
+++ b/src/testing/testing.c
@@ -63,6 +63,10 @@
 
 #define PREFIX_UDP "udp"
 
+#define PREFIX_TCP_NATTED "tcp_natted"
+
+#define PREFIX_UDP_NATTED "udp_natted"
+
 /**
  * Lowest port used for GNUnet testing.  Should be high enough to not
  * conflict with other applications running on the hosts but be low
@@ -1914,7 +1918,7 @@ get_value (const char *key, const char *line)
  * Every line in the topology configuration starts with a string indicating 
which 
  * kind of information will be configured with this line. Configuration values 
following
  * this string are seperated by special sequences of characters. A value might 
be 
- * a key value pair. A special key is the 'connect' which can appear more than 
once.
+ * a key value pair. A special key is the 'connect' key which can appear more 
than once.
  * The value is the information about a connection via some protocol to some 
other node.
  * This function returns the struct GNUNET_TESTING_NodeConnection which holds 
the information
  * of the connect value.
@@ -2419,7 +2423,8 @@ GNUNET_TESTING_get_address (struct 
GNUNET_TESTING_NodeConnection *connection,
   unsigned int node_n;
 
   LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "node_n: %u\n",
+       "get address prefix: %s node_n: %u\n",
+       prefix,
        connection->node_n);
 
   node = connection->node;
@@ -2443,15 +2448,10 @@ GNUNET_TESTING_get_address (struct 
GNUNET_TESTING_NodeConnection *connection,
     return NULL;
   }
 
-  if (0 == strcmp (PREFIX_TCP, prefix))
-  {
-
-    GNUNET_asprintf (&addr,
-                     template,
-                     prefix,
-                     node_n);
-  }
-  else if (0 == strcmp (PREFIX_UDP, prefix))
+  if (0 == strcmp (PREFIX_TCP, prefix) ||
+      0 == strcmp (PREFIX_UDP, prefix) ||
+      0 == strcmp (PREFIX_UDP_NATTED, prefix) ||
+      0 == strcmp (PREFIX_TCP_NATTED, prefix))
   {
     GNUNET_asprintf (&addr,
                      template,
diff --git a/src/transport/test_transport_nat_icmp_tcp_topo.conf 
b/src/transport/test_transport_nat_icmp_tcp_topo.conf
new file mode 100644
index 000000000..37738c80f
--- /dev/null
+++ b/src/transport/test_transport_nat_icmp_tcp_topo.conf
@@ -0,0 +1,7 @@
+M:1
+N:1
+X:1
+T:libgnunet_test_transport_plugin_cmd_nat_upnp
+K:1|{connect:{P:1:1:tcp_natted}}
+R:1|{tcp_port:0}|{udp_port:0}
+P:1:1
\ No newline at end of file
diff --git a/src/transport/transport_api_cmd_connecting_peers.c 
b/src/transport/transport_api_cmd_connecting_peers.c
index d399e9d0a..7feecbcc7 100644
--- a/src/transport/transport_api_cmd_connecting_peers.c
+++ b/src/transport/transport_api_cmd_connecting_peers.c
@@ -97,6 +97,13 @@ connect_peers_run (void *cls,
                                          pos_prefix->address_prefix);
       if (NULL != addr)
       {
+        char *natted_p = strstr (pos_prefix->address_prefix, "_");
+
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                    "0 validating peer number %s %s %s\n",
+                    natted_p,
+                    pos_prefix->address_prefix,
+                    addr);
         if (0 == GNUNET_memcmp (pos_prefix->address_prefix, "udp"))
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                       "validating memcmp\n");
@@ -108,10 +115,28 @@ connect_peers_run (void *cls,
           GNUNET_asprintf (&addr_and_port,
                            "%s:2086",
                            addr);
-        else
+        else if (NULL == natted_p)
           GNUNET_asprintf (&addr_and_port,
                            "%s:60002",
                            addr);
+        else if (NULL != natted_p)
+        {
+          char *prefix;
+          char *rest;
+          char *rest2;
+          char *address;
+
+          prefix = strtok(addr, "_");
+          rest = strtok(NULL, "_");
+          rest2 = strtok(rest, "-");
+          address = strtok(NULL, "-");
+
+          GNUNET_asprintf (&addr_and_port,
+                           "%s-%s:0",
+                           prefix,
+                           address);
+
+        }
         peer = GNUNET_TESTING_get_peer (num, tl_system);
         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                     "validating peer number %u with identity %s and address %s 
%u %s\n",

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