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/*
* SPDX license identifier: MPL-2.0
*
* Copyright (C) 2011-2015, BMW AG
*
* This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
*
* This Source Code Form is subject to the terms of the
* Mozilla Public License (MPL), v. 2.0.
* If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For further information see http://www.genivi.org/.
*/
/*!
* \author Alexander Wenzel <alexander.aw.wenzel@bmw.de>
*
* \copyright Copyright © 2011-2015 BMW AG. \n
* License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
*
* \file dlt-dbus.c
*/
#include "dlt-dbus.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dbus/dbus.h>
#include <sys/time.h>
#include <dlt.h>
#include <time.h>
DLT_DECLARE_CONTEXT(dbusLog)
DLT_DECLARE_CONTEXT(dbusContext)
static char dbus_message_buffer[DBUS_MAXIMUM_MESSAGE_LENGTH];
static DBusHandlerResult
filter_func (DBusConnection *con,
DBusMessage *message,
void *data)
{
char **buf;
int len_p;
UNUSED(con);
UNUSED(data);
buf = (char **)&dbus_message_buffer;
if (!dbus_message_marshal(message,
buf,
&len_p)) {
fprintf (stderr, "Failed to serialize DBus message!\n");
return DBUS_HANDLER_RESULT_HANDLED;
}
DLT_TRACE_NETWORK_SEGMENTED(dbusContext, DLT_NW_TRACE_IPC, 0, 0, len_p, (void *)*buf);
free(*buf);
*buf = NULL;
if (dbus_message_is_signal (message,
DBUS_INTERFACE_LOCAL,
"Disconnected")) {
DLT_UNREGISTER_CONTEXT (dbusContext);
DLT_UNREGISTER_APP ();
exit (0);
}
/* Conceptually we want this to be
* DBUS_HANDLER_RESULT_NOT_YET_HANDLED, but this raises
* some problems. See bug 1719.
*/
return DBUS_HANDLER_RESULT_HANDLED;
}
int main (int argc, char *argv[])
{
DltDBusCliOptions options;
DltDBusConfiguration config;
DBusConnection *connection;
DBusError error;
DBusBusType type;
int num;
if (read_command_line(&options, argc, argv) < 0) {
fprintf(stderr, "Failed to read command line!\n");
return -1;
}
if (read_configuration_file(&config, options.ConfigurationFileName) < 0) {
fprintf(stderr, "Failed to read configuration file!\n");
return -1;
}
/* register application */
if (options.ApplicationId)
DLT_REGISTER_APP (options.ApplicationId, "DBus Logging");
else
DLT_REGISTER_APP (config.ApplicationId, "DBus Logging");
/* register context */
DLT_REGISTER_CONTEXT_LL_TS(dbusContext,
config.DBus.ContextId,
"DBus Context for Logging",
DLT_LOG_INFO,
DLT_TRACE_STATUS_ON);
DLT_REGISTER_CONTEXT(dbusLog, "Log", "DBus Context for Logging Generic information");
/* initialise error handler */
dbus_error_init (&error);
/* set DBus bus type */
if (options.BusType)
type = (DBusBusType)atoi(options.BusType);
else
type = (DBusBusType)atoi(config.DBus.BusType);
/* get connection */
connection = dbus_bus_get (type, &error);
if (type == 0)
DLT_LOG(dbusLog, DLT_LOG_INFO, DLT_STRING("BusType"), DLT_STRING("Session Bus"));
else if (type == 1)
DLT_LOG(dbusLog, DLT_LOG_INFO, DLT_STRING("BusType"), DLT_STRING("System Bus"));
else
DLT_LOG(dbusLog, DLT_LOG_INFO, DLT_STRING("BusType"), DLT_INT(type));
if (NULL == connection) {
fprintf (stderr, "Failed to open connection to %d: %s\n",
DBUS_BUS_SYSTEM,
error.message);
dbus_error_free (&error);
exit (1);
}
for (num = 0; num < config.DBus.FilterCount; num++) {
dbus_bus_add_match (connection,
config.DBus.FilterMatch[num],
&error);
printf("Added FilterMatch: %s\n", config.DBus.FilterMatch[num]);
DLT_LOG(dbusLog, DLT_LOG_INFO, DLT_STRING("FilterMatch"), DLT_UINT(num + 1),
DLT_STRING(config.DBus.FilterMatch[num]));
if (dbus_error_is_set (&error))
goto fail;
}
if (!dbus_connection_add_filter (connection, filter_func, NULL, NULL)) {
fprintf (stderr, "Couldn't add filter!\n");
exit (1);
}
while (dbus_connection_read_write_dispatch(connection, -1))
;
DLT_UNREGISTER_CONTEXT (dbusContext);
DLT_UNREGISTER_CONTEXT (dbusLog);
DLT_UNREGISTER_APP ();
exit(1);
fail:
/* fail */
fprintf (stderr, "Error: %s\n", error.message);
DLT_UNREGISTER_CONTEXT (dbusContext);
DLT_UNREGISTER_CONTEXT (dbusLog);
DLT_UNREGISTER_APP ();
exit(1);
}
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