stuff
[oweals/gnunet.git] / src / transport / test_transport_api_reliability.c
index d5b29e17a6b3e4aecab2ecb3c92874268064f42d..32697e52c4537f9c48197ffdf6c199887b27162b 100644 (file)
@@ -34,7 +34,9 @@
 #include "gnunet_scheduler_lib.h"
 #include "gnunet_server_lib.h"
 #include "gnunet_transport_service.h"
+#include "gauger.h"
 #include "transport.h"
+#include "transport-testing.h"
 
 #define VERBOSE GNUNET_NO
 
@@ -47,7 +49,7 @@
  * 'MAX_PENDING' in 'gnunet-service-transport.c', otherwise
  * messages may be dropped even for a reliable transport.
  */
-#define TOTAL_MSGS (60000 * 2)
+#define TOTAL_MSGS (1024 * 2)
 
 /**
  * How long until we give up on transmitting the message?
 
 #define MTYPE 12345
 
-struct PeerContext
-{
-  struct GNUNET_CONFIGURATION_Handle *cfg;
-  struct GNUNET_TRANSPORT_Handle *th;
-  struct GNUNET_PeerIdentity id;
-#if START_ARM
-  pid_t arm_pid;
-#endif
-};
-
 static struct PeerContext p1;
 
 static struct PeerContext p2;
 
-static struct GNUNET_SCHEDULER_Handle *sched;
-
 static int ok;
 
 static int is_tcp;
@@ -84,24 +74,37 @@ static int is_https;
 
 static int is_udp;
 
+static int is_unix;
+
+static int is_wlan;
+
 static int connected;
 
+static int test_failed;
+
 static unsigned long long total_bytes;
 
 static struct GNUNET_TIME_Absolute start_time;
 
 static GNUNET_SCHEDULER_TaskIdentifier die_task;
 
+static GNUNET_SCHEDULER_TaskIdentifier tct;
+
+struct GNUNET_TRANSPORT_TransmitHandle * th_p2;
+
 static char * key_file_p1;
 static char * cert_file_p1;
 
 static char * key_file_p2;
 static char * cert_file_p2;
-
+static char *test_name;
 static int msg_scheduled;
 static int msg_sent;
+static int msg_recv_expected;
 static int msg_recv;
 
+static int p1_hello_canceled;
+static int p2_hello_canceled;
 
 #if VERBOSE
 #define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
@@ -114,22 +117,32 @@ static void
 end ()
 {
   unsigned long long delta;
+  char *value_name;
 
-  GNUNET_SCHEDULER_cancel (sched, die_task);
+  if (die_task != GNUNET_SCHEDULER_NO_TASK)
+    GNUNET_SCHEDULER_cancel (die_task);
   die_task = GNUNET_SCHEDULER_NO_TASK;
 #if VERBOSE
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Disconnecting from transports!\n");
 #endif
+
+  if (th_p2 != NULL)
+    GNUNET_TRANSPORT_notify_transmit_ready_cancel(th_p2);
+  th_p2 = NULL;
+
   GNUNET_TRANSPORT_disconnect (p1.th);
   GNUNET_TRANSPORT_disconnect (p2.th);
 #if VERBOSE
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Transports disconnected, returning success!\n");
 #endif
-  delta = GNUNET_TIME_absolute_get_duration (start_time).value;
+  delta = GNUNET_TIME_absolute_get_duration (start_time).rel_value;
   fprintf (stderr,
           "\nThroughput was %llu kb/s\n",
           total_bytes * 1000 / 1024 / delta);
+  GNUNET_asprintf(&value_name, "reliable_%s", test_name);
+  GAUGER ("TRANSPORT", value_name, (int)(total_bytes * 1000 / 1024 /delta), "kb/s");
+  GNUNET_free(value_name);
   ok = 0;
 
 }
@@ -140,9 +153,11 @@ static void
 stop_arm (struct PeerContext *p)
 {
 #if START_ARM
-  if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
+  if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
-  GNUNET_OS_process_wait (p->arm_pid);
+  GNUNET_OS_process_wait (p->arm_proc);
+  GNUNET_OS_process_close (p->arm_proc);
+  p->arm_proc = NULL;
 #endif
   GNUNET_CONFIGURATION_destroy (p->cfg);
 }
@@ -150,17 +165,35 @@ stop_arm (struct PeerContext *p)
 
 static void
 end_badly (void *cls,
-          const struct GNUNET_SCHEDULER_TaskContext *tc)
+           const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
-  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                 "Reliability failed: \nLast message scheduled %u of %u \nLast message sent %u \nLast message received %u \n ", msg_scheduled, TOTAL_MSGS, msg_sent, msg_recv);
+  if (test_failed == GNUNET_NO)
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Testcase timeout\n");
+    else
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+              "Reliability failed: Last message sent %u, Next message scheduled %u, Last message received %u, Message expected %u\n",
+              msg_sent,
+              msg_scheduled,
+              msg_recv,
+              msg_recv_expected);
+  if (th_p2 != NULL)
+    GNUNET_TRANSPORT_notify_transmit_ready_cancel(th_p2);
+  th_p2 = NULL;
+
   GNUNET_break (0);
   GNUNET_TRANSPORT_disconnect (p1.th);
   GNUNET_TRANSPORT_disconnect (p2.th);
+  if (GNUNET_SCHEDULER_NO_TASK != tct)
+    {
+      GNUNET_SCHEDULER_cancel (tct);
+      tct = GNUNET_SCHEDULER_NO_TASK;
+    }
   ok = 1;
 }
 
 
+
 struct TestMessage
 {
   struct GNUNET_MessageHeader header;
@@ -173,8 +206,6 @@ get_size (unsigned int iter)
 {
   unsigned int ret;
 
-  if (iter < 60000)
-    return iter + sizeof (struct TestMessage);
   ret = (iter * iter * iter);
   return sizeof (struct TestMessage) + (ret % 60000);
 }
@@ -184,8 +215,8 @@ static void
 notify_receive (void *cls,
                 const struct GNUNET_PeerIdentity *peer,
                 const struct GNUNET_MessageHeader *message,
-                struct GNUNET_TIME_Relative latency,
-               uint32_t distance)
+                const struct GNUNET_TRANSPORT_ATS_Information *ats,
+                uint32_t ats_count)
 {
   static int n;
   unsigned int s;
@@ -196,7 +227,8 @@ notify_receive (void *cls,
   s = get_size (n);
   if (MTYPE != ntohs (message->type))
     return;
-  msg_recv++;
+  msg_recv_expected = n;
+  msg_recv = ntohl(hdr->num);
   if (ntohs (message->size) != s)
     {
       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
@@ -204,8 +236,10 @@ notify_receive (void *cls,
                  n, s,
                  ntohs (message->size),
                  ntohl (hdr->num));
-      GNUNET_SCHEDULER_cancel (sched, die_task);
-      die_task = GNUNET_SCHEDULER_add_now (sched, &end_badly, NULL);
+      if (die_task != GNUNET_SCHEDULER_NO_TASK)
+        GNUNET_SCHEDULER_cancel (die_task);
+      test_failed = GNUNET_YES;
+      die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
       return;
     }
   if (ntohl (hdr->num) != n)
@@ -215,8 +249,10 @@ notify_receive (void *cls,
                  n, s,
                  ntohs (message->size),
                  ntohl (hdr->num));
-      GNUNET_SCHEDULER_cancel (sched, die_task);
-      die_task = GNUNET_SCHEDULER_add_now (sched, &end_badly, NULL);
+      if (die_task != GNUNET_SCHEDULER_NO_TASK)
+        GNUNET_SCHEDULER_cancel (die_task);
+      test_failed = GNUNET_YES;
+      die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
       return;
     }
   memset (cbuf, n, s - sizeof (struct TestMessage));
@@ -227,8 +263,10 @@ notify_receive (void *cls,
       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Expected message %u with bits %u, but body did not match\n",
                  n, (unsigned char) n);
-      GNUNET_SCHEDULER_cancel (sched, die_task);
-      die_task = GNUNET_SCHEDULER_add_now (sched, &end_badly, NULL);
+      if (die_task != GNUNET_SCHEDULER_NO_TASK)
+        GNUNET_SCHEDULER_cancel (die_task);
+      test_failed = GNUNET_YES;
+      die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
       return;
     }
 #if VERBOSE
@@ -244,9 +282,9 @@ notify_receive (void *cls,
   if (0 == (n % (TOTAL_MSGS/100)))
     {
       fprintf (stderr, ".");
-      GNUNET_SCHEDULER_cancel (sched, die_task);
-      die_task = GNUNET_SCHEDULER_add_delayed (sched,
-                                              TIMEOUT,
+      if (die_task != GNUNET_SCHEDULER_NO_TASK)
+        GNUNET_SCHEDULER_cancel (die_task);
+      die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
                                               &end_badly,
                                               NULL);
     }
@@ -270,6 +308,7 @@ notify_ready (void *cls, size_t size, void *buf)
       ok = 42;
       return 0;
     }
+  th_p2 = NULL;
   ret = 0;
   s = get_size (n);
   GNUNET_assert (size >= s);
@@ -302,7 +341,8 @@ notify_ready (void *cls, size_t size, void *buf)
   while (size - ret >= s);
   if (n < TOTAL_MSGS)
   {
-    GNUNET_TRANSPORT_notify_transmit_ready (p2.th,
+    if (th_p2 == NULL)
+      th_p2 = GNUNET_TRANSPORT_notify_transmit_ready (p2.th,
                                            &p1.id,
                                            s, 0, TIMEOUT,
                                            &notify_ready,
@@ -320,57 +360,112 @@ notify_ready (void *cls, size_t size, void *buf)
 }
 
 
+static void
+notify_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer)
+{
+  connected--;
+#if VERBOSE
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Peer `%4s' disconnected (%p)!\n",
+             GNUNET_i2s (peer), cls);
+#endif
+  if (th_p2 != NULL)
+    {
+      GNUNET_TRANSPORT_notify_transmit_ready_cancel(th_p2);
+      th_p2 = NULL;
+    }
+}
+
+
+static void
+exchange_hello_last (void *cls,
+                     const struct GNUNET_MessageHeader *message)
+{
+  struct PeerContext *me = cls;
+
+  GNUNET_assert (message != NULL);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Exchanging HELLO of size %d with peer (%s)!\n", 
+             (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
+             GNUNET_i2s (&me->id));
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
+                                      message, &me->id));
+  GNUNET_TRANSPORT_offer_hello (p1.th, message, NULL, NULL);
+}
+
+
+
+static void
+exchange_hello (void *cls,
+                const struct GNUNET_MessageHeader *message)
+{
+  struct PeerContext *me = cls;
+
+  GNUNET_assert (message != NULL);
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
+                                      message, &me->id));
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Exchanging HELLO of size %d from peer %s!\n", 
+             (int) GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message),
+             GNUNET_i2s (&me->id));
+  GNUNET_TRANSPORT_offer_hello (p2.th, message, NULL, NULL);
+}
+
+
 static void
 notify_connect (void *cls,
                 const struct GNUNET_PeerIdentity *peer,
-                struct GNUNET_TIME_Relative latency,
-               uint32_t distance)
+                const struct GNUNET_TRANSPORT_ATS_Information *ats,
+                uint32_t ats_count)
 {
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Peer `%4s' connected to us (%p)!\n", 
+             GNUNET_i2s (peer), 
+             cls);
+  connected++;
   if (cls == &p1)
     {
       GNUNET_TRANSPORT_set_quota (p1.th,
                                  &p2.id,
                                  GNUNET_BANDWIDTH_value_init (1024 * 1024 * 1024),
-                                 GNUNET_BANDWIDTH_value_init (1024 * 1024 * 1024),
-                                 GNUNET_TIME_UNIT_FOREVER_REL,
-                                 NULL, NULL);
+                                 GNUNET_BANDWIDTH_value_init (1024 * 1024 * 1024));
       start_time = GNUNET_TIME_absolute_get ();
-      connected++;
     }
   else
     {
       GNUNET_TRANSPORT_set_quota (p2.th,
                                  &p1.id,
                                  GNUNET_BANDWIDTH_value_init (1024 * 1024 * 1024),
-                                 GNUNET_BANDWIDTH_value_init (1024 * 1024 * 1024),
-                                 GNUNET_TIME_UNIT_FOREVER_REL,
-                                 NULL, NULL);
-      connected++;
+                                 GNUNET_BANDWIDTH_value_init (1024 * 1024 * 1024));
     }
-
-  if (connected == 2)
+  if (2 == connected)
     {
-      GNUNET_TRANSPORT_notify_transmit_ready (p2.th,
+      if (die_task != GNUNET_SCHEDULER_NO_TASK)
+        GNUNET_SCHEDULER_cancel (die_task);
+      if (tct != GNUNET_SCHEDULER_NO_TASK)
+        GNUNET_SCHEDULER_cancel (tct);
+      tct = GNUNET_SCHEDULER_NO_TASK;
+      if (p2_hello_canceled == GNUNET_NO)
+      {
+        GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_last, &p2);
+        p2_hello_canceled = GNUNET_YES;
+      }
+      if (p1_hello_canceled == GNUNET_NO)
+      {
+        GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, &p1);
+        p1_hello_canceled = GNUNET_YES;
+      }
+      die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
+                                              &end_badly, NULL);
+      th_p2 = GNUNET_TRANSPORT_notify_transmit_ready (p2.th,
                                               &p1.id,
                                               get_size (0), 0, TIMEOUT,
                                               &notify_ready,
                                               NULL);
+      
     }
-#if VERBOSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Peer `%4s' connected to us (%p)!\n", GNUNET_i2s (peer), cls);
-#endif
-}
-
-
-static void
-notify_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer)
-{
-#if VERBOSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Peer `%4s' disconnected (%p)!\n",
-             GNUNET_i2s (peer), cls);
-#endif
 }
 
 
@@ -378,8 +473,18 @@ static void
 setup_peer (struct PeerContext *p, const char *cfgname)
 {
   p->cfg = GNUNET_CONFIGURATION_create ();
+  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
+  if (GNUNET_CONFIGURATION_have_value (p->cfg,"PATHS", "SERVICEHOME"))
+    {
+      GNUNET_assert (GNUNET_OK ==
+                    GNUNET_CONFIGURATION_get_value_string (p->cfg, 
+                                                           "PATHS", "SERVICEHOME",
+                                                           &p->servicehome));
+      GNUNET_DISK_directory_remove (p->servicehome);
+    }
+
 #if START_ARM
-  p->arm_pid = GNUNET_OS_start_process (NULL, NULL,
+  p->arm_proc = GNUNET_OS_start_process (NULL, NULL,
                                        "gnunet-service-arm",
                                         "gnunet-service-arm",
 #if VERBOSE_ARM
@@ -387,66 +492,80 @@ setup_peer (struct PeerContext *p, const char *cfgname)
 #endif
                                         "-c", cfgname, NULL);
 #endif
-  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 
   if (is_https)
-  {
-         struct stat sbuf;
-         if (p==&p1)
-         {
-                 if (GNUNET_CONFIGURATION_have_value (p->cfg,
-                                                                                          "transport-https", "KEY_FILE"))
-                               GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "KEY_FILE", &key_file_p1);
-                 if (key_file_p1 == NULL)
-                         GNUNET_asprintf(&key_file_p1,"https_p1.key");
-                 if (0 == stat (key_file_p1, &sbuf ))
-                 {
-                         if (0 == remove(key_file_p1))
-                             GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Successfully removed existing private key file `%s'\n",key_file_p1);
-                         else
-                                 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to remove private key file `%s'\n",key_file_p1);
-                 }
-                 if (GNUNET_CONFIGURATION_have_value (p->cfg,"transport-https", "CERT_FILE"))
-                         GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "CERT_FILE", &cert_file_p1);
-                 if (cert_file_p1 == NULL)
-                         GNUNET_asprintf(&cert_file_p1,"https_p1.cert");
-                 if (0 == stat (cert_file_p1, &sbuf ))
-                 {
-                         if (0 == remove(cert_file_p1))
-                             GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Successfully removed existing certificate file `%s'\n",cert_file_p1);
-                         else
-                                 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to remove existing certificate file `%s'\n",cert_file_p1);
-                 }
-         }
-         else if (p==&p2)
-         {
-                 if (GNUNET_CONFIGURATION_have_value (p->cfg,
-                                                                                          "transport-https", "KEY_FILE"))
-                               GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "KEY_FILE", &key_file_p2);
-                 if (key_file_p2 == NULL)
-                         GNUNET_asprintf(&key_file_p2,"https_p2.key");
-                 if (0 == stat (key_file_p2, &sbuf ))
-                 {
-                         if (0 == remove(key_file_p2))
-                             GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Successfully removed existing private key file `%s'\n",key_file_p2);
-                         else
-                                 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to remove private key file `%s'\n",key_file_p2);
-                 }
-                 if (GNUNET_CONFIGURATION_have_value (p->cfg,"transport-https", "CERT_FILE"))
-                         GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "CERT_FILE", &cert_file_p2);
-                 if (cert_file_p2 == NULL)
-                         GNUNET_asprintf(&cert_file_p2,"https_p2.cert");
-                 if (0 == stat (cert_file_p2, &sbuf ))
-                 {
-                         if (0 == remove(cert_file_p2))
-                             GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Successfully removed existing certificate file `%s'\n",cert_file_p2);
-                         else
-                                 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to remove existing certificate file `%s'\n",cert_file_p2);
-                 }
-         }
-  }
-
-  p->th = GNUNET_TRANSPORT_connect (sched, p->cfg, NULL,
+    {
+      struct stat sbuf;
+      if (p==&p1)
+       {
+         if (GNUNET_CONFIGURATION_have_value (p->cfg,
+                                              "transport-https", "KEY_FILE"))
+           GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "KEY_FILE", &key_file_p1);
+         if (key_file_p1 == NULL)
+           GNUNET_asprintf(&key_file_p1,"https_p1.key");
+         if (0 == stat (key_file_p1, &sbuf ))
+           {
+             if (0 == remove(key_file_p1))
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Successfully removed existing private key file `%s'\n",
+                           key_file_p1);
+             else
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Failed to remove private key file `%s'\n",
+                           key_file_p1);
+           }
+         if (GNUNET_CONFIGURATION_have_value (p->cfg,"transport-https", "CERT_FILE"))
+           GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "CERT_FILE", &cert_file_p1);
+         if (cert_file_p1 == NULL)
+           GNUNET_asprintf(&cert_file_p1,"https_p1.cert");
+         if (0 == stat (cert_file_p1, &sbuf ))
+           {
+             if (0 == remove(cert_file_p1))
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Successfully removed existing certificate file `%s'\n",
+                           cert_file_p1);
+             else
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Failed to remove existing certificate file `%s'\n",
+                           cert_file_p1);
+           }
+       }
+      else if (p==&p2)
+       {
+         if (GNUNET_CONFIGURATION_have_value (p->cfg,
+                                              "transport-https", "KEY_FILE"))
+           GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "KEY_FILE", &key_file_p2);
+         if (key_file_p2 == NULL)
+           GNUNET_asprintf(&key_file_p2,"https_p2.key");
+         if (0 == stat (key_file_p2, &sbuf ))
+           {
+             if (0 == remove(key_file_p2))
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Successfully removed existing private key file `%s'\n",
+                           key_file_p2);
+             else
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Failed to remove private key file `%s'\n",
+                           key_file_p2);
+           }
+         if (GNUNET_CONFIGURATION_have_value (p->cfg,"transport-https", "CERT_FILE"))
+           GNUNET_CONFIGURATION_get_value_string (p->cfg, "transport-https", "CERT_FILE", &cert_file_p2);
+         if (cert_file_p2 == NULL)
+           GNUNET_asprintf(&cert_file_p2,"https_p2.cert");
+         if (0 == stat (cert_file_p2, &sbuf ))
+           {
+             if (0 == remove(cert_file_p2))
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Successfully removed existing certificate file `%s'\n",
+                           cert_file_p2);
+             else
+               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                           "Failed to remove existing certificate file `%s'\n",
+                           cert_file_p2);
+           }
+       }
+    }
+  p->th = GNUNET_TRANSPORT_connect (p->cfg, NULL,
                                     p,
                                     &notify_receive,
                                     &notify_connect,
@@ -455,68 +574,142 @@ setup_peer (struct PeerContext *p, const char *cfgname)
 }
 
 
-static void
-exchange_hello_last (void *cls,
-                     const struct GNUNET_MessageHeader *message)
+/**
+ * Return the actual path to a file found in the current
+ * PATH environment variable.
+ *
+ * @param binary the name of the file to find
+ */
+static char *
+get_path_from_PATH (char *binary)
 {
-  struct PeerContext *me = cls;
+  char *path;
+  char *pos;
+  char *end;
+  char *buf;
+  const char *p;
+
+  p = getenv ("PATH");
+  if (p == NULL)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  _("PATH environment variable is unset.\n"));
+      return NULL;
+    }
+  path = GNUNET_strdup (p);     /* because we write on it */
+  buf = GNUNET_malloc (strlen (path) + 20);
+  pos = path;
 
-  GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_last, me);
-#if VERBOSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Exchanging HELLO with peer (%p)!\n", cls);
-#endif
-  GNUNET_assert (ok >= 3);
-  OKPP;
-  GNUNET_assert (message != NULL);
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
-                                      message, &me->id));
-  /* both HELLOs exchanged, get ready to test transmission! */
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Finished exchanging HELLOs, now waiting for transmission!\n");
+  while (NULL != (end = strchr (pos, PATH_SEPARATOR)))
+    {
+      *end = '\0';
+      sprintf (buf, "%s/%s", pos, binary);
+      if (GNUNET_DISK_file_test (buf) == GNUNET_YES)
+        {
+          GNUNET_free (path);
+          return buf;
+        }
+      pos = end + 1;
+    }
+  sprintf (buf, "%s/%s", pos, binary);
+  if (GNUNET_DISK_file_test (buf) == GNUNET_YES)
+    {
+      GNUNET_free (path);
+      return buf;
+    }
+  GNUNET_free (buf);
+  GNUNET_free (path);
+  return NULL;
 }
 
-
-static void
-exchange_hello (void *cls,
-                const struct GNUNET_MessageHeader *message)
+/**
+ * Check whether the suid bit is set on a file.
+ * Attempts to find the file using the current
+ * PATH environment variable as a search path.
+ *
+ * @param binary the name of the file to check
+ *
+ * @return GNUNET_YES if the binary is found and
+ *         can be run properly, GNUNET_NO otherwise
+ */
+static int
+check_gnunet_nat_binary(char *binary)
 {
-  struct PeerContext *me = cls;
+  struct stat statbuf;
+  char *p;
+#ifdef MINGW
+  SOCKET rawsock;
+#endif
 
-  GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, me);
-#if VERBOSE
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Exchanging HELLO with peer (%p)!\n", cls);
+#ifdef MINGW
+  char *binaryexe;
+  GNUNET_asprintf (&binaryexe, "%s.exe", binary);
+  p = get_path_from_PATH (binaryexe);
+  free (binaryexe);
+#else
+  p = get_path_from_PATH (binary);
 #endif
-  GNUNET_assert (ok >= 2);
-  OKPP;
-  GNUNET_assert (message != NULL);
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *)
-                                      message, &me->id));
+  if (p == NULL)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  _("Could not find binary `%s' in PATH!\n"),
+                  binary);
+      return GNUNET_NO;
+    }
+  if (0 != STAT (p, &statbuf))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  _("stat (%s) failed: %s\n"),
+                  p,
+                  STRERROR (errno));
+      GNUNET_free (p);
+      return GNUNET_SYSERR;
+    }
+  GNUNET_free (p);
+#ifndef MINGW
+  if ( (0 != (statbuf.st_mode & S_ISUID)) &&
+       (statbuf.st_uid == 0) )
+    return GNUNET_YES;
+  return GNUNET_NO;
+#else
+  rawsock = socket (AF_INET, SOCK_RAW, IPPROTO_ICMP);
+  if (INVALID_SOCKET == rawsock)
+    {
+      DWORD err = GetLastError ();
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "socket (AF_INET, SOCK_RAW, IPPROTO_ICMP) have failed! GLE = %d\n", err);
+      return GNUNET_NO; /* not running as administrator */
+    }
+  closesocket (rawsock);
+  return GNUNET_YES;
+#endif
+}
 
-#if VERBOSE
+
+static void
+try_connect (void *cls,
+            const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Received HELLO size %d\n",
-             GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message));
-#endif
-  GNUNET_TRANSPORT_offer_hello (p2.th, message);
-  GNUNET_TRANSPORT_get_hello (p2.th, &exchange_hello_last, &p2);
+             "Asking peers to connect...\n");
+  GNUNET_TRANSPORT_try_connect (p2.th,
+                               &p1.id);
+  GNUNET_TRANSPORT_try_connect (p1.th,
+                               &p2.id);
+  tct = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
+                                     &try_connect,
+                                     NULL);
 }
 
 
 static void
 run (void *cls,
-     struct GNUNET_SCHEDULER_Handle *s,
      char *const *args,
      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
   GNUNET_assert (ok == 1);
   OKPP;
-  sched = s;
-  die_task = GNUNET_SCHEDULER_add_delayed (sched,
-                                          TIMEOUT,
+  die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
                                           &end_badly,
                                           NULL);
   if (is_tcp)
@@ -539,16 +732,30 @@ run (void *cls,
       setup_peer (&p1, "test_transport_api_udp_peer1.conf");
       setup_peer (&p2, "test_transport_api_udp_peer2.conf");
     }
+  else if (is_unix)
+    {
+      setup_peer (&p1, "test_transport_api_unix_peer1.conf");
+      setup_peer (&p2, "test_transport_api_unix_peer2.conf");
+    }
   else if (is_tcp_nat)
     {
       setup_peer (&p1, "test_transport_api_tcp_nat_peer1.conf");
       setup_peer (&p2, "test_transport_api_tcp_nat_peer2.conf");
     }
+  else if (is_wlan)
+    {
+      setup_peer (&p1, "test_transport_api_wlan_peer1.conf");
+      setup_peer (&p2, "test_transport_api_wlan_peer2.conf");
+    }
   else
     GNUNET_assert (0);
   GNUNET_assert(p1.th != NULL);
   GNUNET_assert(p2.th != NULL);
   GNUNET_TRANSPORT_get_hello (p1.th, &exchange_hello, &p1);
+  p1_hello_canceled = GNUNET_NO;
+  GNUNET_TRANSPORT_get_hello (p2.th, &exchange_hello_last, &p2);
+  p2_hello_canceled = GNUNET_NO;
+  tct = GNUNET_SCHEDULER_add_now (&try_connect, NULL);
 }
 
 
@@ -571,6 +778,14 @@ check ()
   setTransportOptions("test_transport_api_data.conf");
 #endif
   ok = 1;
+
+  if ((GNUNET_YES == is_tcp_nat) && (check_gnunet_nat_binary("gnunet-nat-server") != GNUNET_YES))
+    {
+      GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
+                "Not running NAT test case, binaries not properly installed.\n");
+      return 0;
+    }
+
   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
                       argv, "test-transport-api-reliability", "nohelp",
                       options, &run, &ok);
@@ -579,42 +794,56 @@ check ()
 
   if (is_https)
   {
-         struct stat sbuf;
-         if (0 == stat (cert_file_p1, &sbuf ))
-         {
-                 if (0 == remove(cert_file_p1))
-                         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully removed existing certificate file `%s'\n",cert_file_p1);
-                 else
-                         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to remove certfile `%s'\n",cert_file_p1);
-         }
+    struct stat sbuf;
+    if (0 == stat (cert_file_p1, &sbuf ))
+    {
+      if (0 == remove(cert_file_p1))
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+                   "Successfully removed existing certificate file `%s'\n",
+                   cert_file_p1);
+      else
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 
+                   "Failed to remove certfile `%s'\n",
+                   cert_file_p1);
+    }
 
-         if (0 == stat (key_file_p1, &sbuf ))
-         {
-                 if (0 == remove(key_file_p1))
-                         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully removed private key file `%s'\n",key_file_p1);
-                 else
-                         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to private key file `%s'\n",key_file_p1);
-         }
+    if (0 == stat (key_file_p1, &sbuf ))
+    {
+      if (0 == remove(key_file_p1))
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+                   "Successfully removed private key file `%s'\n",
+                   key_file_p1);
+      else
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 
+                   "Failed to private key file `%s'\n",key_file_p1);
+    }
 
-         if (0 == stat (cert_file_p2, &sbuf ))
-         {
-                 if (0 == remove(cert_file_p2))
-                         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully removed existing certificate file `%s'\n",cert_file_p2);
-                 else
-                         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to remove certfile `%s'\n",cert_file_p2);
-         }
+    if (0 == stat (cert_file_p2, &sbuf ))
+    {
+      if (0 == remove(cert_file_p2))
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+                   "Successfully removed existing certificate file `%s'\n",
+                   cert_file_p2);
+      else
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 
+                   "Failed to remove certfile `%s'\n",cert_file_p2);
+    }
 
-         if (0 == stat (key_file_p2, &sbuf ))
-         {
-                 if (0 == remove(key_file_p2))
-                         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Successfully removed private key file `%s'\n",key_file_p2);
-                 else
-                         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to private key file `%s'\n",key_file_p2);
-         }
-         GNUNET_free(key_file_p1);
-         GNUNET_free(key_file_p2);
-         GNUNET_free(cert_file_p1);
-         GNUNET_free(cert_file_p2);
+    if (0 == stat (key_file_p2, &sbuf ))
+    {
+      if (0 == remove(key_file_p2))
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+                   "Successfully removed private key file `%s'\n",
+                   key_file_p2);
+      else
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 
+                   "Failed to private key file `%s'\n",
+                   key_file_p2);
+    }
+    GNUNET_free(key_file_p1);
+    GNUNET_free(key_file_p2);
+    GNUNET_free(cert_file_p1);
+    GNUNET_free(cert_file_p2);
   }
 
   return ok;
@@ -625,28 +854,42 @@ int
 main (int argc, char *argv[])
 {
   int ret;
-#ifdef MINGW
-  return GNUNET_SYSERR;
-#endif
+
+  test_failed = GNUNET_NO;
+
   if (strstr(argv[0], "tcp_nat") != NULL)
     {
       is_tcp_nat = GNUNET_YES;
+      GNUNET_asprintf(&test_name, "tcp_nat");
     }
   else if (strstr(argv[0], "tcp") != NULL)
     {
       is_tcp = GNUNET_YES;
+      GNUNET_asprintf(&test_name, "tcp");
     }
   else if (strstr(argv[0], "https") != NULL)
     {
       is_https = GNUNET_YES;
+      GNUNET_asprintf(&test_name, "https");
     }
   else if (strstr(argv[0], "http") != NULL)
     {
       is_http = GNUNET_YES;
+      GNUNET_asprintf(&test_name, "http");
     }
   else if (strstr(argv[0], "udp") != NULL)
     {
       is_udp = GNUNET_YES;
+      GNUNET_asprintf(&test_name, "udp");
+    }
+  else if (strstr(argv[0], "unix") != NULL)
+    {
+      is_unix = GNUNET_YES;
+      GNUNET_asprintf(&test_name, "unix");
+    }
+  else if (strstr(argv[0], "wlan") != NULL)
+    {
+       is_wlan = GNUNET_YES;
     }
   GNUNET_log_setup ("test-transport-api-reliability",
 #if VERBOSE
@@ -656,8 +899,16 @@ main (int argc, char *argv[])
 #endif
                     NULL);
   ret = check ();
-  GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-transport-peer-1");
-  GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-transport-peer-2");
+  if (p1.servicehome != NULL)
+    {
+      GNUNET_DISK_directory_remove (p1.servicehome);
+      GNUNET_free (p1.servicehome);
+    }
+  if (p2.servicehome != NULL)
+    {   
+      GNUNET_DISK_directory_remove (p2.servicehome);
+      GNUNET_free (p2.servicehome);
+    }
   return ret;
 }