* gnunet-service-testbed. This binary also receives configuration
* from the remove controller which is put in a temporary location
* with ports and paths fixed so that gnunet-service-testbed runs
- * without any hurdels. This binary also kills the testbed service
+ * without any hurdles. This binary also kills the testbed service
* should the connection from the remote controller is dropped
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
+
+
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_testing_lib-new.h"
+#include "gnunet_testbed_service.h"
#include "testbed_helper.h"
+#include "testbed_api.h"
+#include <zlib.h>
+/**
+ * Generic logging shortcut
+ */
+#define LOG(kind, ...) \
+ GNUNET_log (kind, __VA_ARGS__)
/**
- * Generic debug logging shortcut
+ * Debug logging shorthand
*/
-#define LOG_DEBUG(...) \
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
+#define LOG_DEBUG(...) \
+ LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
+
+
+/**
+ * Context for a single write on a chunk of memory
+ */
+struct WriteContext
+{
+ /**
+ * The data to write
+ */
+ void *data;
+
+ /**
+ * The length of the data
+ */
+ size_t length;
+
+ /**
+ * The current position from where the write operation should begin
+ */
+ size_t pos;
+};
/**
*/
static struct GNUNET_DISK_FileHandle *stdin_fd;
+/**
+ * Disk handle for stdout
+ */
+static struct GNUNET_DISK_FileHandle *stdout_fd;
+
+/**
+ * The process handle to the testbed service
+ */
+static struct GNUNET_OS_Process *testbed;
+
/**
* Task identifier for the read task
*/
static GNUNET_SCHEDULER_TaskIdentifier read_task_id;
+/**
+ * Task identifier for the write task
+ */
+static GNUNET_SCHEDULER_TaskIdentifier write_task_id;
+
/**
* Are we done reading messages from stdin?
*/
static int done_reading;
+/**
+ * Result to return in case we fail
+ */
+static int status;
+
+
+/**
+ * Are we shutting down
+ */
+static int in_shutdown;
+
/**
* Task to shutting down nicely
*
* @param cls NULL
- * @return tc the task context
+ * @param tc the task context
*/
static void
shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
+ LOG_DEBUG ("Shutting down\n");
+ in_shutdown = GNUNET_YES;
if (GNUNET_SCHEDULER_NO_TASK != read_task_id)
{
GNUNET_SCHEDULER_cancel (read_task_id);
read_task_id = GNUNET_SCHEDULER_NO_TASK;
}
- (void) GNUNET_DISK_file_close (stdin_fd);
+ if (GNUNET_SCHEDULER_NO_TASK != write_task_id)
+ {
+ GNUNET_SCHEDULER_cancel (write_task_id);
+ write_task_id = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (NULL != stdin_fd)
+ (void) GNUNET_DISK_file_close (stdin_fd);
+ if (NULL != stdout_fd)
+ (void) GNUNET_DISK_file_close (stdout_fd);
GNUNET_SERVER_mst_destroy (tokenizer);
tokenizer = NULL;
+ if (NULL != testbed)
+ {
+ LOG_DEBUG ("Killing testbed\n");
+ GNUNET_break (0 == GNUNET_OS_process_kill (testbed, SIGTERM));
+ GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (testbed));
+ GNUNET_OS_process_destroy (testbed);
+ testbed = NULL;
+ }
if (NULL != test_system)
{
GNUNET_TESTING_system_destroy (test_system, GNUNET_YES);
}
+/**
+ * Task to write to the standard out
+ *
+ * @param cls the WriteContext
+ * @param tc the TaskContext
+ */
+static void
+write_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct WriteContext *wc = cls;
+ ssize_t bytes_wrote;
+
+ GNUNET_assert (NULL != wc);
+ write_task_id = GNUNET_SCHEDULER_NO_TASK;
+ if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason))
+ {
+ GNUNET_free (wc->data);
+ GNUNET_free (wc);
+ return;
+ }
+ bytes_wrote = GNUNET_DISK_file_write (stdout_fd, wc->data + wc->pos,
+ wc->length - wc->pos);
+ GNUNET_assert (GNUNET_SYSERR != bytes_wrote);
+ wc->pos += bytes_wrote;
+ if (wc->pos == wc->length)
+ {
+ GNUNET_free (wc->data);
+ GNUNET_free (wc);
+ return;
+ }
+ write_task_id = GNUNET_SCHEDULER_add_write_file
+ (GNUNET_TIME_UNIT_FOREVER_REL, stdout_fd, &write_task, wc);
+}
+
+
/**
* Functions with this signature are called whenever a
* complete message is received by the tokenizer.
tokenizer_cb (void *cls, void *client,
const struct GNUNET_MessageHeader *message)
{
- GNUNET_break (0);
- // FIXME: write config & start gnunet-service-testbed
+ const struct GNUNET_TESTBED_HelperInit *msg;
+ struct GNUNET_TESTBED_HelperReply *reply;
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ struct WriteContext *wc;
+ char *controller;
+ char *config;
+ char *xconfig;
+ size_t config_size;
+ uLongf ul_config_size;
+ size_t xconfig_size;
+ uint16_t cname_size;
+
+ if ((sizeof (struct GNUNET_TESTBED_HelperInit) >= ntohs (message->size)) ||
+ (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_INIT != ntohs (message->type)))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Received unexpected message -- exiting\n");
+ goto error;
+ }
+ msg = (const struct GNUNET_TESTBED_HelperInit *) message;
+ cname_size = ntohs (msg->cname_size);
+ controller = (char *) &msg[1];
+ if ('\0' != controller[cname_size])
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Controller name cannot be empty -- exiting\n");
+ goto error;
+ }
+ ul_config_size = (uLongf) ntohs (msg->config_size);
+ config = GNUNET_malloc (ul_config_size);
+ xconfig_size = ntohs (message->size) -
+ (cname_size + 1 + sizeof (struct GNUNET_TESTBED_HelperInit));
+ if (Z_OK != uncompress ((Bytef *) config, &ul_config_size,
+ (const Bytef *) (controller + cname_size + 1),
+ (uLongf) xconfig_size))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Error while uncompressing config -- exiting\n");
+ GNUNET_free (config);
+ goto error;
+ }
+ cfg = GNUNET_CONFIGURATION_create ();
+ if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config,
+ ul_config_size, GNUNET_NO))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Unable to deserialize config -- exiting\n");
+ GNUNET_free (config);
+ goto error;
+ }
+ GNUNET_free (config);
+ test_system = GNUNET_TESTING_system_create ("testbed-helper", controller);
+ GNUNET_assert (NULL != test_system);
+ GNUNET_assert (GNUNET_OK == GNUNET_TESTING_configuration_create
+ (test_system, cfg));
+ GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string
+ (cfg, "PATHS", "DEFAULTCONFIG", &config));
+ if (GNUNET_OK != GNUNET_CONFIGURATION_write (cfg, config))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Unable to write config file: %s -- exiting\n", config);
+ GNUNET_CONFIGURATION_destroy (cfg);
+ GNUNET_free (config);
+ goto error;
+ }
+ LOG_DEBUG ("Staring testbed with config: %s\n", config);
+ testbed = GNUNET_OS_start_process
+ (GNUNET_YES, GNUNET_OS_INHERIT_STD_ERR /*verbose? */, NULL, NULL,
+ "gnunet-service-testbed", "gnunet-service-testbed", "-c", config, NULL);
+ GNUNET_free (config);
+ if (NULL == testbed)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Error staring gnunet-service-testbed -- exiting\n");
+ GNUNET_CONFIGURATION_destroy (cfg);
+ goto error;
+ }
done_reading = GNUNET_YES;
+ config = GNUNET_CONFIGURATION_serialize (cfg, &config_size);
+ GNUNET_CONFIGURATION_destroy (cfg);
+ cfg = NULL;
+ xconfig_size = GNUNET_TESTBED_compress_config_ (config, config_size,
+ &xconfig);
+ GNUNET_free (config);
+ wc = GNUNET_malloc (sizeof (struct WriteContext));
+ wc->length = xconfig_size + sizeof (struct GNUNET_TESTBED_HelperReply);
+ reply = GNUNET_realloc (xconfig, wc->length);
+ memmove (&reply[1], reply, xconfig_size);
+ reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_REPLY);
+ reply->header.size = htons ((uint16_t) wc->length);
+ reply->config_size = htons ((uint16_t) config_size);
+ wc->data = reply;
+ write_task_id = GNUNET_SCHEDULER_add_write_file
+ (GNUNET_TIME_UNIT_FOREVER_REL, stdout_fd, &write_task, wc);
return GNUNET_OK;
+
+ error:
+ status = GNUNET_SYSERR;
+ GNUNET_SCHEDULER_shutdown ();
+ return GNUNET_SYSERR;
}
* Task to read from stdin
*
* @param cls NULL
- * @return tc the task context
+ * @param tc the task context
*/
static void
read_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason))
return;
sread = GNUNET_DISK_file_read (stdin_fd, buf, sizeof (buf));
- if (GNUNET_SYSERR == sread)
+ if ((GNUNET_SYSERR == sread) || (0 == sread))
{
- GNUNET_break (0); /* FIXME: stdin closed - kill child */
GNUNET_SCHEDULER_shutdown ();
return;
}
if (GNUNET_YES == done_reading)
{
/* didn't expect any more data! */
- GNUNET_break (0);
GNUNET_SCHEDULER_shutdown ();
return;
}
LOG_DEBUG ("Starting testbed helper...\n");
tokenizer = GNUNET_SERVER_mst_create (&tokenizer_cb, NULL);
stdin_fd = GNUNET_DISK_get_handle_from_native (stdin);
+ stdout_fd = GNUNET_DISK_get_handle_from_native (stdout);
read_task_id =
GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
stdin_fd, &read_task, NULL);
}
+/**
+ * Signal handler called for SIGCHLD.
+ */
+static void
+sighandler_child_death ()
+{
+ if ((NULL != testbed) && (GNUNET_NO == in_shutdown))
+ {
+ LOG_DEBUG ("Child died\n");
+ GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (testbed));
+ GNUNET_OS_process_destroy (testbed);
+ testbed = NULL;
+ GNUNET_SCHEDULER_shutdown (); /* We are done too! */
+ }
+}
+
+
/**
* Main function
*
*/
int main (int argc, char **argv)
{
+ struct GNUNET_SIGNAL_Context *shc_chld;
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_OPTION_END
};
- if (GNUNET_OK !=
- GNUNET_PROGRAM_run (argc, argv, "gnunet-testbed-helper",
- "Helper for starting gnunet-service-testbed",
- options, &run, NULL))
+ int ret;
+
+ status = GNUNET_OK;
+ in_shutdown = GNUNET_NO;
+ //sleep (60);
+ shc_chld =
+ GNUNET_SIGNAL_handler_install (GNUNET_SIGCHLD, &sighandler_child_death);
+ ret = GNUNET_PROGRAM_run (argc, argv, "gnunet-testbed-helper",
+ "Helper for starting gnunet-service-testbed",
+ options, &run, NULL);
+ GNUNET_SIGNAL_handler_uninstall (shc_chld);
+ shc_chld = NULL;
+ if (GNUNET_OK != ret)
return 1;
- return 0;
+ return (GNUNET_OK == status) ? 0 : 1;
}
/* end of gnunet-testbed-helper.c */
projects / oweals / gnunet.git / blobdiff