1 files changed, 533 insertions, 0 deletions
diff --git a/src/core/test_core_api_reliability.c b/src/core/test_core_api_reliability.c
new file mode 100644
index 0000000..645b27e
--- /dev/null
+++ b/src/core/test_core_api_reliability.c
@@ -0,0 +1,533 @@
+/*
+     This file is part of GNUnet.
+     (C) 2009, 2010 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 3, 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 core/test_core_api_reliability.c
+ * @brief testcase for core_api.c focusing on reliable transmission (with TCP)
+ */
+#include "platform.h"
+#include "gnunet_common.h"
+#include "gnunet_constants.h"
+#include "gnunet_arm_service.h"
+#include "gnunet_core_service.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 <gauger.h>
+
+#define VERBOSE GNUNET_NO
+
+#define START_ARM GNUNET_YES
+
+/**
+ * Note that this value must not significantly exceed
+ * 'MAX_PENDING' in 'gnunet-service-transport.c', otherwise
+ * messages may be dropped even for a reliable transport.
+ */
+#define TOTAL_MSGS (600 * 10)
+
+/**
+ * How long until we give up on transmitting the message?
+ */
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 6000)
+
+/**
+ * What delay do we request from the core service for transmission?
+ */
+#define FAST_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
+
+#define MTYPE 12345
+
+
+static unsigned long long total_bytes;
+
+static struct GNUNET_TIME_Absolute start_time;
+
+static GNUNET_SCHEDULER_TaskIdentifier err_task;
+
+static GNUNET_SCHEDULER_TaskIdentifier connect_task;
+
+
+struct PeerContext
+{
+  struct GNUNET_CONFIGURATION_Handle *cfg;
+  struct GNUNET_CORE_Handle *ch;
+  struct GNUNET_PeerIdentity id;
+  struct GNUNET_TRANSPORT_Handle *th;
+  struct GNUNET_MessageHeader *hello;
+  struct GNUNET_TRANSPORT_GetHelloHandle *ghh;
+  int connect_status;
+#if START_ARM
+  struct GNUNET_OS_Process *arm_proc;
+#endif
+};
+
+static struct PeerContext p1;
+
+static struct PeerContext p2;
+
+static int ok;
+
+static int32_t tr_n;
+
+
+#if VERBOSE
+#define OKPP do { ok++; GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Now at stage %u at %s:%u\n", ok, __FILE__, __LINE__); } while (0)
+#else
+#define OKPP do { ok++; } while (0)
+#endif
+
+struct TestMessage
+{
+  struct GNUNET_MessageHeader header;
+  uint32_t num;
+};
+
+
+static unsigned int
+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);
+}
+
+static void
+process_hello (void *cls, const struct GNUNET_MessageHeader *message);
+
+static void
+terminate_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  unsigned long long delta;
+
+  GNUNET_TRANSPORT_get_hello_cancel (p1.ghh);
+  GNUNET_TRANSPORT_get_hello_cancel (p2.ghh);
+  GNUNET_CORE_disconnect (p1.ch);
+  p1.ch = NULL;
+  GNUNET_CORE_disconnect (p2.ch);
+  p2.ch = NULL;
+  if (connect_task != GNUNET_SCHEDULER_NO_TASK)
+    GNUNET_SCHEDULER_cancel (connect_task);
+  GNUNET_TRANSPORT_disconnect (p1.th);
+  p1.th = NULL;
+  GNUNET_TRANSPORT_disconnect (p2.th);
+  p2.th = NULL;
+  delta = GNUNET_TIME_absolute_get_duration (start_time).rel_value;
+  FPRINTF (stderr, "\nThroughput was %llu kb/s\n",
+           total_bytes * 1000 / 1024 / delta);
+  GAUGER ("CORE", "Core throughput/s", total_bytes * 1000 / 1024 / delta,
+          "kb/s");
+  ok = 0;
+}
+
+
+static void
+terminate_task_error (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  GNUNET_break (0);
+  if (p1.ch != NULL)
+  {
+    GNUNET_CORE_disconnect (p1.ch);
+    p1.ch = NULL;
+  }
+  if (p2.ch != NULL)
+  {
+    GNUNET_CORE_disconnect (p2.ch);
+    p2.ch = NULL;
+  }
+  if (connect_task != GNUNET_SCHEDULER_NO_TASK)
+    GNUNET_SCHEDULER_cancel (connect_task);
+  if (p1.th != NULL)
+  {
+    GNUNET_TRANSPORT_get_hello_cancel (p1.ghh);
+    GNUNET_TRANSPORT_disconnect (p1.th);
+    p1.th = NULL;
+  }
+  if (p2.th != NULL)
+  {
+    GNUNET_TRANSPORT_get_hello_cancel (p2.ghh);
+    GNUNET_TRANSPORT_disconnect (p2.th);
+    p2.th = NULL;
+  }
+  ok = 42;
+}
+
+
+static void
+try_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  connect_task =
+      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &try_connect,
+                                    NULL);
+  GNUNET_TRANSPORT_try_connect (p1.th, &p2.id);
+}
+
+static size_t
+transmit_ready (void *cls, size_t size, void *buf)
+{
+  char *cbuf = buf;
+  struct TestMessage hdr;
+  unsigned int s;
+  unsigned int ret;
+
+  GNUNET_assert (size <= GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE);
+  if (buf == NULL)
+  {
+    if (p1.ch != NULL)
+      GNUNET_break (NULL !=
+                    GNUNET_CORE_notify_transmit_ready (p1.ch, GNUNET_NO, 0,
+                                                       FAST_TIMEOUT, &p2.id,
+                                                       get_size (tr_n),
+                                                       &transmit_ready, &p1));
+    return 0;
+  }
+  GNUNET_assert (tr_n < TOTAL_MSGS);
+  ret = 0;
+  s = get_size (tr_n);
+  GNUNET_assert (size >= s);
+  GNUNET_assert (buf != NULL);
+  cbuf = buf;
+  do
+  {
+#if VERBOSE
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Sending message %u of size %u at offset %u\n", tr_n, s, ret);
+#endif
+    hdr.header.size = htons (s);
+    hdr.header.type = htons (MTYPE);
+    hdr.num = htonl (tr_n);
+    memcpy (&cbuf[ret], &hdr, sizeof (struct TestMessage));
+    ret += sizeof (struct TestMessage);
+    memset (&cbuf[ret], tr_n, s - sizeof (struct TestMessage));
+    ret += s - sizeof (struct TestMessage);
+    tr_n++;
+    s = get_size (tr_n);
+    if (0 == GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16))
+      break;                    /* sometimes pack buffer full, sometimes not */
+  }
+  while (size - ret >= s);
+  GNUNET_SCHEDULER_cancel (err_task);
+  err_task =
+      GNUNET_SCHEDULER_add_delayed (TIMEOUT, &terminate_task_error, NULL);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Returning total message block of size %u\n", ret);
+  total_bytes += ret;
+  return ret;
+}
+
+
+
+static void
+connect_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
+                const struct GNUNET_ATS_Information *atsi,
+                unsigned int atsi_count)
+{
+  struct PeerContext *pc = cls;
+
+  if (0 == memcmp (&pc->id, peer, sizeof (struct GNUNET_PeerIdentity)))
+    return;
+  GNUNET_assert (pc->connect_status == 0);
+  pc->connect_status = 1;
+  if (pc == &p1)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Encrypted connection established to peer `%4s'\n",
+                GNUNET_i2s (peer));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Asking core (1) for transmission to peer `%4s'\n",
+                GNUNET_i2s (&p2.id));
+    GNUNET_SCHEDULER_cancel (err_task);
+    err_task =
+        GNUNET_SCHEDULER_add_delayed (TIMEOUT, &terminate_task_error, NULL);
+    start_time = GNUNET_TIME_absolute_get ();
+    GNUNET_break (NULL !=
+                  GNUNET_CORE_notify_transmit_ready (p1.ch, GNUNET_NO, 0,
+                                                     TIMEOUT, &p2.id,
+                                                     get_size (0),
+                                                     &transmit_ready, &p1));
+  }
+}
+
+
+static void
+disconnect_notify (void *cls, const struct GNUNET_PeerIdentity *peer)
+{
+  struct PeerContext *pc = cls;
+
+  if (0 == memcmp (&pc->id, peer, sizeof (struct GNUNET_PeerIdentity)))
+    return;
+  pc->connect_status = 0;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Encrypted connection to `%4s' cut\n",
+              GNUNET_i2s (peer));
+}
+
+
+static int
+inbound_notify (void *cls, const struct GNUNET_PeerIdentity *other,
+                const struct GNUNET_MessageHeader *message,
+                const struct GNUNET_ATS_Information *atsi,
+                unsigned int atsi_count)
+{
+#if VERBOSE
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Core provides inbound data from `%4s'.\n", GNUNET_i2s (other));
+#endif
+  return GNUNET_OK;
+}
+
+
+static int
+outbound_notify (void *cls, const struct GNUNET_PeerIdentity *other,
+                 const struct GNUNET_MessageHeader *message,
+                 const struct GNUNET_ATS_Information *atsi,
+                 unsigned int atsi_count)
+{
+#if VERBOSE
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Core notifies about outbound data for `%4s'.\n",
+              GNUNET_i2s (other));
+#endif
+  return GNUNET_OK;
+}
+
+
+static size_t
+transmit_ready (void *cls, size_t size, void *buf);
+
+static int
+process_mtype (void *cls, const struct GNUNET_PeerIdentity *peer,
+               const struct GNUNET_MessageHeader *message,
+               const struct GNUNET_ATS_Information *atsi,
+               unsigned int atsi_count)
+{
+  static int n;
+  unsigned int s;
+  const struct TestMessage *hdr;
+
+  hdr = (const struct TestMessage *) message;
+  s = get_size (n);
+  if (MTYPE != ntohs (message->type))
+    return GNUNET_SYSERR;
+  if (ntohs (message->size) != s)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Expected message %u of size %u, got %u bytes of message %u\n",
+                n, s, ntohs (message->size), ntohl (hdr->num));
+    GNUNET_SCHEDULER_cancel (err_task);
+    err_task = GNUNET_SCHEDULER_add_now (&terminate_task_error, NULL);
+    return GNUNET_SYSERR;
+  }
+  if (ntohl (hdr->num) != n)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Expected message %u of size %u, got %u bytes of message %u\n",
+                n, s, ntohs (message->size), ntohl (hdr->num));
+    GNUNET_SCHEDULER_cancel (err_task);
+    err_task = GNUNET_SCHEDULER_add_now (&terminate_task_error, NULL);
+    return GNUNET_SYSERR;
+  }
+#if VERBOSE
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got message %u of size %u\n",
+              ntohl (hdr->num), ntohs (message->size));
+#endif
+  n++;
+  if (0 == (n % (TOTAL_MSGS / 100)))
+    FPRINTF (stderr, "%s",  ".");
+  if (n == TOTAL_MSGS)
+  {
+    GNUNET_SCHEDULER_cancel (err_task);
+    GNUNET_SCHEDULER_add_now (&terminate_task, NULL);
+  }
+  else
+  {
+    if (n == tr_n)
+      GNUNET_break (NULL !=
+                    GNUNET_CORE_notify_transmit_ready (p1.ch, GNUNET_NO, 0,
+                                                       FAST_TIMEOUT, &p2.id,
+                                                       get_size (tr_n),
+                                                       &transmit_ready, &p1));
+  }
+  return GNUNET_OK;
+}
+
+
+static struct GNUNET_CORE_MessageHandler handlers[] = {
+  {&process_mtype, MTYPE, 0},
+  {NULL, 0, 0}
+};
+
+
+
+static void
+init_notify (void *cls, struct GNUNET_CORE_Handle *server,
+             const struct GNUNET_PeerIdentity *my_identity)
+{
+  struct PeerContext *p = cls;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Connection to CORE service of `%4s' established\n",
+              GNUNET_i2s (my_identity));
+  GNUNET_assert (server != NULL);
+  p->id = *my_identity;
+  p->ch = server;
+  if (cls == &p1)
+  {
+    GNUNET_assert (ok == 2);
+    OKPP;
+    /* connect p2 */
+    GNUNET_CORE_connect (p2.cfg, 1, &p2, &init_notify, &connect_notify,
+                         &disconnect_notify, &inbound_notify, GNUNET_YES,
+                         &outbound_notify, GNUNET_YES, handlers);
+  }
+  else
+  {
+    GNUNET_assert (ok == 3);
+    OKPP;
+    GNUNET_assert (cls == &p2);
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Asking transport (1) to connect to peer `%4s'\n",
+                GNUNET_i2s (&p2.id));
+    connect_task = GNUNET_SCHEDULER_add_now (&try_connect, NULL);
+  }
+}
+
+
+static void
+process_hello (void *cls, const struct GNUNET_MessageHeader *message)
+{
+  struct PeerContext *p = cls;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Received (my) `%s' from transport service\n", "HELLO");
+  GNUNET_assert (message != NULL);
+  p->hello = GNUNET_malloc (ntohs (message->size));
+  memcpy (p->hello, message, ntohs (message->size));
+  if ((p == &p1) && (p2.th != NULL))
+    GNUNET_TRANSPORT_offer_hello (p2.th, message, NULL, NULL);
+  if ((p == &p2) && (p1.th != NULL))
+    GNUNET_TRANSPORT_offer_hello (p1.th, message, NULL, NULL);
+
+  if ((p == &p1) && (p2.hello != NULL))
+    GNUNET_TRANSPORT_offer_hello (p1.th, p2.hello, NULL, NULL);
+  if ((p == &p2) && (p1.hello != NULL))
+    GNUNET_TRANSPORT_offer_hello (p2.th, p1.hello, NULL, NULL);
+}
+
+
+
+static void
+setup_peer (struct PeerContext *p, const char *cfgname)
+{
+  p->cfg = GNUNET_CONFIGURATION_create ();
+#if START_ARM
+  p->arm_proc =
+    GNUNET_OS_start_process (GNUNET_YES, NULL, NULL, "gnunet-service-arm",
+                               "gnunet-service-arm",
+#if VERBOSE
+                               "-L", "DEBUG",
+#endif
+                               "-c", cfgname, NULL);
+#endif
+  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
+  p->th = GNUNET_TRANSPORT_connect (p->cfg, NULL, p, NULL, NULL, NULL);
+  GNUNET_assert (p->th != NULL);
+  p->ghh = GNUNET_TRANSPORT_get_hello (p->th, &process_hello, p);
+}
+
+
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  GNUNET_assert (ok == 1);
+  OKPP;
+  setup_peer (&p1, "test_core_api_peer1.conf");
+  setup_peer (&p2, "test_core_api_peer2.conf");
+  err_task =
+      GNUNET_SCHEDULER_add_delayed (TIMEOUT, &terminate_task_error, NULL);
+  GNUNET_CORE_connect (p1.cfg, 1, &p1, &init_notify, &connect_notify,
+                       &disconnect_notify, &inbound_notify, GNUNET_YES,
+                       &outbound_notify, GNUNET_YES, handlers);
+}
+
+
+static void
+stop_arm (struct PeerContext *p)
+{
+#if START_ARM
+  if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+  if (GNUNET_OS_process_wait (p->arm_proc) != GNUNET_OK)
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ARM process %u stopped\n",
+              GNUNET_OS_process_get_pid (p->arm_proc));
+  GNUNET_OS_process_close (p->arm_proc);
+  p->arm_proc = NULL;
+#endif
+  GNUNET_CONFIGURATION_destroy (p->cfg);
+}
+
+static int
+check ()
+{
+  char *const argv[] = { "test-core-api-reliability",
+    "-c",
+    "test_core_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-core-api-reliability", "nohelp", options, &run,
+                      &ok);
+  stop_arm (&p1);
+  stop_arm (&p2);
+  return ok;
+}
+
+int
+main (int argc, char *argv[])
+{
+  int ret;
+
+  GNUNET_log_setup ("test-core-api",
+#if VERBOSE
+                    "DEBUG",
+#else
+                    "WARNING",
+#endif
+                    NULL);
+  ret = check ();
+  GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-1");
+  GNUNET_DISK_directory_remove ("/tmp/test-gnunet-core-peer-2");
+
+  return ret;
+}
+
+/* end of test_core_api_reliability.c */