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/*
Copyright (C) 2009 RedHat inc.
This program 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "dbus.h"
#include "dbus_common.h"
DBusConnection* s_dbus_conn;
/*
* DBus member calls
*/
/* helpers */
static DBusMessage* new_call_msg(const char* method)
{
DBusMessage* msg = dbus_message_new_method_call(ABRTD_DBUS_NAME, ABRTD_DBUS_PATH, ABRTD_DBUS_IFACE, method);
if (!msg)
die_out_of_memory();
return msg;
}
static DBusMessage* send_get_reply_and_unref(DBusMessage* msg)
{
dbus_uint32_t serial;
if (TRUE != dbus_connection_send(s_dbus_conn, msg, &serial))
error_msg_and_die("Error sending DBus message");
dbus_message_unref(msg);
while (true)
{
DBusMessage *received = dbus_connection_pop_message(s_dbus_conn);
if (!received)
{
if (FALSE == dbus_connection_read_write(s_dbus_conn, -1))
error_msg_and_die("dbus connection closed");
continue;
}
int tp = dbus_message_get_type(received);
const char *error_str = dbus_message_get_error_name(received);
#if 0
/* Debugging */
printf("type:%u (CALL:%u, RETURN:%u, ERROR:%u, SIGNAL:%u)\n", tp,
DBUS_MESSAGE_TYPE_METHOD_CALL,
DBUS_MESSAGE_TYPE_METHOD_RETURN,
DBUS_MESSAGE_TYPE_ERROR,
DBUS_MESSAGE_TYPE_SIGNAL
);
const char *sender = dbus_message_get_sender(received);
if (sender)
printf("sender: %s\n", sender);
const char *path = dbus_message_get_path(received);
if (path)
printf("path: %s\n", path);
const char *member = dbus_message_get_member(received);
if (member)
printf("member: %s\n", member);
const char *interface = dbus_message_get_interface(received);
if (interface)
printf("interface: %s\n", interface);
const char *destination = dbus_message_get_destination(received);
if (destination)
printf("destination: %s\n", destination);
if (error_str)
printf("error: '%s'\n", error_str);
#endif
DBusError err;
dbus_error_init(&err);
if (dbus_message_is_signal(received, ABRTD_DBUS_IFACE, "Update"))
{
const char *update_msg;
if (!dbus_message_get_args(received, &err,
DBUS_TYPE_STRING, &update_msg,
DBUS_TYPE_INVALID))
{
error_msg_and_die("dbus Update message: arguments mismatch");
}
printf(">> %s\n", update_msg);
}
else if (dbus_message_is_signal(received, ABRTD_DBUS_IFACE, "Warning"))
{
const char *warning_msg;
if (!dbus_message_get_args(received, &err,
DBUS_TYPE_STRING, &warning_msg,
DBUS_TYPE_INVALID))
{
error_msg_and_die("dbus Warning message: arguments mismatch");
}
log(">! %s\n", warning_msg);
}
else
if (tp == DBUS_MESSAGE_TYPE_METHOD_RETURN
&& dbus_message_get_reply_serial(received) == serial
) {
return received;
}
else
if (tp == DBUS_MESSAGE_TYPE_ERROR
&& dbus_message_get_reply_serial(received) == serial
) {
error_msg_and_die("dbus call returned error: '%s'", error_str);
}
dbus_message_unref(received);
}
}
void handle_dbus_err(bool error_flag, DBusError *err)
{
if (dbus_error_is_set(err))
{
error_msg("dbus error: %s", err->message);
/* dbus_error_free(&err); */
error_flag = true;
}
if (!error_flag)
return;
error_msg_and_die(
"error requesting DBus name %s, possible reasons: "
"abrt run by non-root; dbus config is incorrect; "
"or dbus daemon needs to be restarted to reload dbus config",
ABRTD_DBUS_NAME);
}
int32_t call_DeleteDebugDump(const char* crash_id)
{
DBusMessage* msg = new_call_msg(__func__ + 5);
dbus_message_append_args(msg,
DBUS_TYPE_STRING, &crash_id,
DBUS_TYPE_INVALID);
DBusMessage *reply = send_get_reply_and_unref(msg);
DBusMessageIter in_iter;
dbus_message_iter_init(reply, &in_iter);
int32_t result;
int r = load_val(&in_iter, result);
if (r != ABRT_DBUS_LAST_FIELD) /* more values present, or bad type */
error_msg_and_die("dbus call %s: return type mismatch", __func__ + 5);
dbus_message_unref(reply);
return result;
}
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