--- /dev/null
+/*
+ This file is part of GNUnet.
+ (C) 2009 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file transport/test_transport_api_dv.c
+ * @brief base test case for dv transport (separated from other transport
+ * testcases for two reasons. 1) dv-service relies on core and other
+ * transport plugins, dv plugin relies on dv-service, so dv-plugin needs
+ * to live here, and 2) a dv plugin testcase is different from other
+ * tranport plugin testcases because we need at least three peer to test
+ * it.
+ *
+ * This test case tests DV functionality. Specifically it starts three
+ * peers connected in a line (1 <-> 2 <-> 3). Then a message is transmitted
+ * from peer 1 to peer 3. Assuming that DV is working, peer 2 should have
+ * gossiped about peer 3 to 1, and should then forward a message from one
+ * to 3.
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_hello_lib.h"
+#include "gnunet_getopt_lib.h"
+#include "gnunet_os_lib.h"
+#include "gnunet_program_lib.h"
+#include "gnunet_scheduler_lib.h"
+#include "gnunet_transport_service.h"
+#include "../transport/transport.h"
+
+#define VERBOSE GNUNET_YES
+
+#define VERBOSE_ARM GNUNET_YES
+
+#define START_ARM GNUNET_YES
+
+/**
+ * How long until we give up on transmitting the message?
+ */
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 50)
+
+#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 PeerContext p3;
+
+static struct GNUNET_SCHEDULER_Handle *sched;
+
+static int ok;
+
+GNUNET_SCHEDULER_TaskIdentifier die_task;
+
+#if VERBOSE
+#define OKPP do { ok++; fprintf (stderr, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
+#else
+#define OKPP do { ok++; } while (0)
+#endif
+
+
+static void
+end ()
+{
+ /* do work here */
+ GNUNET_assert (ok == 6);
+ GNUNET_SCHEDULER_cancel (sched, die_task);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Disconnecting from transports!\n");
+ GNUNET_TRANSPORT_disconnect (p1.th);
+ GNUNET_TRANSPORT_disconnect (p2.th);
+ GNUNET_TRANSPORT_disconnect (p3.th);
+
+ die_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Transports disconnected, returning success!\n");
+ ok = 0;
+}
+
+static void
+stop_arm (struct PeerContext *p)
+{
+#if START_ARM
+ if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+ GNUNET_OS_process_wait (p->arm_pid);
+#endif
+ GNUNET_CONFIGURATION_destroy (p->cfg);
+}
+
+
+static void
+end_badly ()
+{
+ /* do work here */
+#if VERBOSE
+ fprintf(stderr, "Ending on an unhappy note.\n");
+#endif
+
+ GNUNET_TRANSPORT_disconnect (p1.th);
+ GNUNET_TRANSPORT_disconnect (p2.th);
+ GNUNET_TRANSPORT_disconnect (p3.th);
+
+ ok = 1;
+ return;
+}
+
+static void
+notify_receive (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ struct GNUNET_TIME_Relative latency,
+ uint32_t distance)
+{
+
+ if (ntohs(message->type) != MTYPE)
+ return;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received message of type %d from peer (%p)!\n",
+ ntohs(message->type), cls);
+
+ GNUNET_assert (ok == 5);
+ OKPP;
+
+ GNUNET_assert (MTYPE == ntohs (message->type));
+ GNUNET_assert (sizeof (struct GNUNET_MessageHeader) ==
+ ntohs (message->size));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received message from peer (%p)!\n",
+ cls);
+ end ();
+}
+
+
+static size_t
+notify_ready (void *cls, size_t size, void *buf)
+{
+ struct GNUNET_MessageHeader *hdr;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting message to peer (%p) - %u!\n", cls, size);
+ GNUNET_assert (size >= 256);
+ GNUNET_assert (ok == 4);
+ OKPP;
+ if (buf != NULL)
+ {
+ hdr = buf;
+ hdr->size = htons (sizeof (struct GNUNET_MessageHeader));
+ hdr->type = htons (MTYPE);
+ }
+
+ return sizeof (struct GNUNET_MessageHeader);
+}
+
+
+static void
+notify_connect (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ struct GNUNET_TIME_Relative latency,
+ uint32_t distance)
+{
+ if ((cls == &p1) && (memcmp(peer, &p3.id, sizeof(struct GNUNET_PeerIdentity)) == 0))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Peer 1 notified about connection to peer 3!\n", GNUNET_i2s (peer), cls);
+ GNUNET_TRANSPORT_notify_transmit_ready (p1.th,
+ &p3.id,
+ 256, 0, TIMEOUT, ¬ify_ready,
+ &p1);
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Peer `%4s' connected to us (%p)!\n", GNUNET_i2s (peer), cls);
+}
+
+
+static void
+notify_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer)
+{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Peer `%4s' disconnected (%p)!\n",
+ GNUNET_i2s (peer), cls);
+}
+
+
+static void
+setup_peer (struct PeerContext *p, const char *cfgname)
+{
+ p->cfg = GNUNET_CONFIGURATION_create ();
+#if START_ARM
+ p->arm_pid = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
+ "gnunet-service-arm",
+#if VERBOSE_ARM
+ "-L", "DEBUG",
+#endif
+ "-c", cfgname, NULL);
+#endif
+ GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
+
+ p->th = GNUNET_TRANSPORT_connect (sched, p->cfg,
+ p,
+ ¬ify_receive,
+ ¬ify_connect, ¬ify_disconnect);
+ GNUNET_assert (p->th != NULL);
+}
+
+
+static void
+exchange_hello_next (void *cls,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct PeerContext *me = cls;
+
+ GNUNET_TRANSPORT_get_hello_cancel (p2.th, &exchange_hello_next, me);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Exchanging HELLO with peer (%p)!\n", cls);
+ 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));
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received HELLO size %d\n", GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message));
+
+ GNUNET_TRANSPORT_offer_hello (p3.th, message);
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Finished exchanging HELLOs, now waiting for transmission!\n");
+
+}
+
+
+static void
+exchange_hello (void *cls,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct PeerContext *me = cls;
+
+ GNUNET_TRANSPORT_get_hello_cancel (p1.th, &exchange_hello, me);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Exchanging HELLO with peer (%p)!\n", cls);
+ 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));
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received HELLO size %d\n", GNUNET_HELLO_size((const struct GNUNET_HELLO_Message *)message));
+
+ GNUNET_TRANSPORT_offer_hello (p2.th, message);
+ GNUNET_TRANSPORT_get_hello (p2.th, &exchange_hello_next, &p2);
+}
+
+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,
+ GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 1), &end_badly, NULL);
+
+ setup_peer (&p1, "test_transport_api_dv_peer1.conf");
+ setup_peer (&p2, "test_transport_api_dv_peer2.conf");
+ setup_peer (&p3, "test_transport_api_dv_peer3.conf");
+
+ GNUNET_assert(p1.th != NULL);
+ GNUNET_assert(p2.th != NULL);
+ GNUNET_assert(p3.th != NULL);
+
+ GNUNET_TRANSPORT_get_hello (p1.th, &exchange_hello, &p1);
+}
+
+static int
+check ()
+{
+
+ char *const argv[] = { "test-transport-api",
+ "-c",
+ "test_transport_api_data.conf",
+#if VERBOSE
+ "-L", "DEBUG",
+#endif
+ NULL
+ };
+
+ struct GNUNET_GETOPT_CommandLineOption options[] = {
+ GNUNET_GETOPT_OPTION_END
+ };
+
+ ok = 1;
+ GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
+ argv, "test-transport-api", "nohelp",
+ options, &run, &ok);
+ stop_arm (&p1);
+ stop_arm (&p2);
+ stop_arm (&p3);
+ return ok;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+ int ret;
+#ifdef MINGW
+ return GNUNET_SYSERR;
+#endif
+
+ GNUNET_log_setup ("test-transport-api-dv",
+#if VERBOSE
+ "DEBUG",
+#else
+ "WARNING",
+#endif
+ NULL);
+ ret = check ();
+ GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-transport-peer-1");
+ GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-transport-peer-2");
+ GNUNET_DISK_directory_remove ("/tmp/test-gnunetd-transport-peer-3");
+ return ret;
+}
+
+/* end of test_transport_api_dv.c */
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