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
+ 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
#include "gnunet_dht_service.h"
/* DEFINES */
-#define VERBOSE GNUNET_YES
+#define VERBOSE GNUNET_EXTRA_LOGGING
+
+#define MAX_GET_ATTEMPTS 10
#define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
#define DEFAULT_NUM_PEERS 2
/* Structs */
-/* ... */
+
+struct PeerGetContext
+{
+ struct GNUNET_PeerIdentity *peer;
+
+ struct GNUNET_DHT_Handle *dht_handle;
+
+ struct GNUNET_DHT_GetHandle *get_handle;
+
+ unsigned int get_attempts;
+
+ GNUNET_SCHEDULER_TaskIdentifier retry_task;
+};
/* Globals */
static char *test_directory;
+static struct PeerGetContext curr_get_ctx;
+
static unsigned int expected_connections;
static unsigned long long peers_left;
static struct GNUNET_TESTING_PeerGroup *pg;
-static struct GNUNET_SCHEDULER_Handle *sched;
-
static unsigned long long num_peers;
+static unsigned int total_gets;
+
+static unsigned int gets_succeeded;
+
static unsigned int total_connections;
static unsigned int failed_connections;
-GNUNET_SCHEDULER_TaskIdentifier die_task;
+static GNUNET_SCHEDULER_TaskIdentifier die_task;
static int ok;
+static struct GNUNET_PeerIdentity peer1id;
+
+static struct GNUNET_PeerIdentity peer2id;
+
+static struct GNUNET_DHT_Handle *peer1dht;
+
+static struct GNUNET_DHT_Handle *peer2dht;
+
/**
* Check whether peers successfully shut down.
*/
-void shutdown_callback (void *cls,
- const char *emsg)
+static void
+shutdown_callback (void *cls, const char *emsg)
{
if (emsg != NULL)
- {
- if (ok == 0)
- ok = 2;
- }
+ {
+ if (ok == 0)
+ ok = 2;
+ }
}
static void
-finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
GNUNET_assert (pg != NULL);
+ GNUNET_assert (peer1dht != NULL);
+ GNUNET_assert (peer2dht != NULL);
+ GNUNET_DHT_disconnect (peer1dht);
+ GNUNET_DHT_disconnect (peer2dht);
GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
+ pg = NULL;
ok = 0;
}
static void
-end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
+ if (peer1dht != NULL)
+ GNUNET_DHT_disconnect (peer1dht);
+
+ if (peer2dht != NULL)
+ GNUNET_DHT_disconnect (peer2dht);
+
if (pg != NULL)
+ {
GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
+ pg = NULL;
+ }
+
+ if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
+ curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+}
+
+
+static void
+end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ const char *emsg = cls;
+
+ fprintf (stderr,
+ "Error: %s\n",
+ emsg);
+ if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
+ curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (curr_get_ctx.get_handle != NULL)
+ {
+ GNUNET_DHT_get_stop (curr_get_ctx.get_handle);
+ }
+
+ GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
ok = 1;
}
-void
-topology_callback (void *cls,
- const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second,
- uint32_t distance,
+
+/* Forward declaration */
+static void
+do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+/**
+ * Iterator called on each result obtained for a DHT
+ * operation that expects a reply
+ *
+ * @param cls closure
+ * @param exp when will this value expire
+ * @param key key of the result
+ * @param type type of the result
+ * @param size number of bytes in data
+ * @param data pointer to the result data
+ */
+static void
+get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
+ const GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length,
+ enum GNUNET_BLOCK_Type type, size_t size, const void *data)
+{
+ struct PeerGetContext *get_context = cls;
+
+ if (0 !=
+ memcmp (&get_context->peer->hashPubKey, key, sizeof (GNUNET_HashCode)))
+ {
+ fprintf (stderr, "??\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Key returned is not the same key as was searched for!\n");
+ GNUNET_SCHEDULER_cancel (die_task);
+ die_task =
+ GNUNET_SCHEDULER_add_now (&end_badly,
+ "key mismatch in get response!\n");
+ return;
+ }
+ fprintf (stderr, "!\n");
+ if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (get_context->retry_task);
+ get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+
+ if (get_context->peer == &peer2id)
+ {
+ get_context->peer = &peer1id;
+ get_context->dht_handle = peer2dht;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received first correct GET request response!\n");
+ GNUNET_DHT_get_stop (get_context->get_handle);
+ GNUNET_SCHEDULER_add_now (&do_get, get_context);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received second correct GET request response!\n");
+ GNUNET_SCHEDULER_cancel (die_task);
+ GNUNET_DHT_get_stop (get_context->get_handle);
+ die_task = GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
+ }
+
+}
+
+static void
+stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+static void
+get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PeerGetContext *get_context = cls;
+
+ if (get_context->get_attempts < MAX_GET_ATTEMPTS)
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Get attempt %u failed, retrying request!\n",
+ get_context->get_attempts);
+ else
+ {
+ fprintf (stderr, "?\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Too many attempts failed, ending test!\n",
+ get_context->get_attempts);
+ GNUNET_SCHEDULER_cancel (die_task);
+ die_task =
+ GNUNET_SCHEDULER_add_now (&end_badly,
+ "GET attempt failed, ending test!\n");
+ return;
+ }
+ fprintf (stderr, ".");
+ get_context->get_attempts++;
+ get_context->retry_task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 10),
+ &stop_retry_get, get_context);
+ get_context->get_handle =
+ GNUNET_DHT_get_start (get_context->dht_handle,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5),
+ GNUNET_BLOCK_TYPE_DHT_HELLO,
+ &get_context->peer->hashPubKey,
+ 1, GNUNET_DHT_RO_NONE, NULL,
+ 0, &get_result_iterator, get_context);
+}
+
+
+static void
+stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PeerGetContext *get_context = cls;
+
+ get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Get attempt %u failed, canceling request!\n",
+ get_context->get_attempts);
+ GNUNET_DHT_get_stop (get_context->get_handle);
+ get_context->get_handle = NULL;
+ GNUNET_SCHEDULER_add_now (&get_stop_finished, get_context);
+}
+
+
+static void
+do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PeerGetContext *get_context = cls;
+
+ get_context->retry_task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 10),
+ &stop_retry_get, get_context);
+ get_context->get_handle =
+ GNUNET_DHT_get_start (get_context->dht_handle,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5),
+ GNUNET_BLOCK_TYPE_DHT_HELLO,
+ &get_context->peer->hashPubKey,
+ 1, GNUNET_DHT_RO_FIND_PEER, NULL,
+ 0, &get_result_iterator, get_context);
+}
+
+
+static void
+topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
+ const struct GNUNET_PeerIdentity *second, uint32_t distance,
const struct GNUNET_CONFIGURATION_Handle *first_cfg,
const struct GNUNET_CONFIGURATION_Handle *second_cfg,
struct GNUNET_TESTING_Daemon *first_daemon,
const char *emsg)
{
if (emsg == NULL)
- {
- total_connections++;
+ {
+ total_connections++;
#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
- first_daemon->shortname,
- second_daemon->shortname,
- distance);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "connected peer %s to peer %s, distance %u\n",
+ first_daemon->shortname, second_daemon->shortname, distance);
#endif
- }
+ }
#if VERBOSE
else
- {
- failed_connections++;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
- first_daemon->shortname,
- second_daemon->shortname, emsg);
- }
+ {
+ failed_connections++;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to connect peer %s to peer %s with error :\n%s\n",
+ first_daemon->shortname, second_daemon->shortname, emsg);
+ }
#endif
if (total_connections == expected_connections)
- {
+ {
#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Created %d total connections, which is our target number! Starting next phase of testing.\n",
- total_connections);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Created %d total connections, which is our target number! Starting next phase of testing.\n",
+ total_connections);
#endif
- GNUNET_SCHEDULER_cancel (sched, die_task);
- die_task = GNUNET_SCHEDULER_NO_TASK;
- //GNUNET_SCHEDULER_add_now (sched, &next_phase, NULL);
- GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
- }
+ GNUNET_SCHEDULER_cancel (die_task);
+ die_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT,
+ &end_badly, "Timeout trying to GET");
+
+ curr_get_ctx.dht_handle = peer1dht;
+ curr_get_ctx.peer = &peer2id;
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 2), &do_get,
+ &curr_get_ctx);
+ }
else if (total_connections + failed_connections == expected_connections)
- {
- GNUNET_SCHEDULER_cancel (sched, die_task);
- die_task = GNUNET_SCHEDULER_add_now (sched,
- &end_badly, "from topology_callback (too many failed connections)");
- }
- else
- {
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Have %d total connections, %d failed connections, Want %d\n",
- total_connections, failed_connections, expected_connections);
-#endif
- }
+ {
+ GNUNET_SCHEDULER_cancel (die_task);
+ die_task =
+ GNUNET_SCHEDULER_add_now (&end_badly,
+ "from topology_callback (too many failed connections)");
+ }
}
+
static void
-connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
expected_connections = -1;
if ((pg != NULL) && (peers_left == 0))
- {
- expected_connections = GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE, GNUNET_TESTING_TOPOLOGY_OPTION_ALL, 0.0);
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Have %d expected connections\n", expected_connections);
-#endif
- }
+ expected_connections =
+ GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
+ GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
+ 0.0, TIMEOUT, 12, NULL, NULL);
- GNUNET_SCHEDULER_cancel (sched, die_task);
+ GNUNET_SCHEDULER_cancel (die_task);
if (expected_connections == GNUNET_SYSERR)
- {
- die_task = GNUNET_SCHEDULER_add_now (sched,
- &end_badly, "from connect topology (bad return)");
- }
-
- die_task = GNUNET_SCHEDULER_add_delayed (sched,
- TIMEOUT,
- &end_badly, "from connect topology (timeout)");
+ die_task =
+ GNUNET_SCHEDULER_add_now (&end_badly,
+ "from connect topology (bad return)");
+ else
+ die_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
+ "from connect topology (timeout)");
}
+
static void
-peers_started_callback (void *cls,
- const struct GNUNET_PeerIdentity *id,
- const struct GNUNET_CONFIGURATION_Handle *cfg,
- struct GNUNET_TESTING_Daemon *d, const char *emsg)
+peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
+ const struct GNUNET_CONFIGURATION_Handle *cfg,
+ struct GNUNET_TESTING_Daemon *d, const char *emsg)
{
if (emsg != NULL)
+ {
+ fprintf (stderr,
+ "Failed to start daemon: `%s'\n",
+ emsg);
+ return;
+ }
+ GNUNET_assert (id != NULL);
+ if (peers_left == num_peers)
+ {
+ memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity));
+ peer1dht = GNUNET_DHT_connect (cfg, 100);
+ if (peer1dht == NULL)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
- emsg);
- return;
+ GNUNET_SCHEDULER_cancel (die_task);
+ die_task =
+ GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
}
- GNUNET_assert (id != NULL);
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
- (num_peers - peers_left) + 1, num_peers);
-#endif
+ }
+ else
+ {
+ memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity));
+ peer2dht = GNUNET_DHT_connect (cfg, 100);
+ if (peer2dht == NULL)
+ {
+ GNUNET_SCHEDULER_cancel (die_task);
+ die_task =
+ GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
+ }
+ }
+
- //GNUNET_DHT_connect();
peers_left--;
if (peers_left == 0)
- {
+ {
#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "All %d daemons started, now creating topology!\n",
- num_peers);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "All %d daemons started, now connecting peers!\n", num_peers);
#endif
- GNUNET_SCHEDULER_cancel (sched, die_task);
- /* Set up task in case topology creation doesn't finish
- * within a reasonable amount of time */
- die_task = GNUNET_SCHEDULER_add_delayed (sched,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MINUTES, 5),
- &end_badly, "from peers_started_callback");
-
- GNUNET_SCHEDULER_add_now(sched, &connect_topology, NULL);
- ok = 0;
- }
+ GNUNET_SCHEDULER_cancel (die_task);
+ /* Set up task in case topology creation doesn't finish
+ * within a reasonable amount of time */
+ die_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
+ "from peers_started_callback");
+
+ GNUNET_SCHEDULER_add_now (&connect_topology, NULL);
+ ok = 0;
+ }
}
+
static void
-run (void *cls,
- struct GNUNET_SCHEDULER_Handle *s,
- char *const *args,
- const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
+run (void *cls, char *const *args, const char *cfgfile,
+ const struct GNUNET_CONFIGURATION_Handle *cfg)
{
- sched = s;
- ok = 1;
- if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
- {
- ok = 404;
- return;
- }
+ if (GNUNET_YES !=
+ GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
+ &test_directory))
+ {
+ ok = 404;
+ return;
+ }
if (GNUNET_SYSERR ==
GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
num_peers = DEFAULT_NUM_PEERS;
peers_left = num_peers;
-
+ total_gets = num_peers;
+ gets_succeeded = 0;
/* Set up a task to end testing if peer start fails */
- die_task = GNUNET_SCHEDULER_add_delayed (sched,
- TIMEOUT,
- &end_badly, "didn't start all daemons in reasonable amount of time!!!");
+ die_task =
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
+ "didn't start all daemons in reasonable amount of time!!!");
- pg = GNUNET_TESTING_daemons_start (sched, cfg,
- num_peers, TIMEOUT, NULL, NULL, &peers_started_callback, NULL,
+ pg = GNUNET_TESTING_daemons_start (cfg, num_peers, 10, num_peers, TIMEOUT,
+ NULL, NULL, &peers_started_callback, NULL,
&topology_callback, NULL, NULL);
}
check ()
{
int ret;
- char *const argv[] = {"test-dht-twopeer",
+
+ char *const argv[] = { "test-dht-twopeer",
"-c",
"test_dht_twopeer_data.conf",
#if VERBOSE
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_OPTION_END
};
- ret = GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
- argv, "test-dht-twopeer", "nohelp",
- options, &run, &ok);
+ ret =
+ GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
+ "test-dht-twopeer", "nohelp", options, &run, &ok);
if (ret != GNUNET_OK)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`test-dht-twopeer': Failed with error code %d\n", ret);
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "`test-dht-twopeer': Failed with error code %d\n", ret);
+ }
return ok;
}
* of by the testing framework.
*/
if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Failed to remove testing directory %s\n", test_directory);
+ }
return ret;
}