/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-dbus-aux.h"
/*****************************************************************************/
static void
_nm_dbus_connection_call_get_name_owner_cb(GObject *source, GAsyncResult *res, gpointer user_data)
{
gs_unref_variant GVariant *ret = NULL;
gs_free_error GError * error = NULL;
const char * owner = NULL;
gpointer orig_user_data;
NMDBusConnectionCallGetNameOwnerCb callback;
nm_utils_user_data_unpack(user_data, &orig_user_data, &callback);
ret = g_dbus_connection_call_finish(G_DBUS_CONNECTION(source), res, &error);
if (ret)
g_variant_get(ret, "(&s)", &owner);
callback(owner, error, orig_user_data);
}
void
nm_dbus_connection_call_get_name_owner(GDBusConnection * dbus_connection,
const char * service_name,
int timeout_msec,
GCancellable * cancellable,
NMDBusConnectionCallGetNameOwnerCb callback,
gpointer user_data)
{
nm_assert(callback);
g_dbus_connection_call(dbus_connection,
DBUS_SERVICE_DBUS,
DBUS_PATH_DBUS,
DBUS_INTERFACE_DBUS,
"GetNameOwner",
g_variant_new("(s)", service_name),
G_VARIANT_TYPE("(s)"),
G_DBUS_CALL_FLAGS_NONE,
timeout_msec,
cancellable,
_nm_dbus_connection_call_get_name_owner_cb,
nm_utils_user_data_pack(user_data, callback));
}
/*****************************************************************************/
static void
_nm_dbus_connection_call_default_cb(GObject *source, GAsyncResult *res, gpointer user_data)
{
gs_unref_variant GVariant *ret = NULL;
gs_free_error GError * error = NULL;
gpointer orig_user_data;
NMDBusConnectionCallDefaultCb callback;
nm_utils_user_data_unpack(user_data, &orig_user_data, &callback);
ret = g_dbus_connection_call_finish(G_DBUS_CONNECTION(source), res, &error);
nm_assert((!!ret) != (!!error));
callback(ret, error, orig_user_data);
}
void
nm_dbus_connection_call_get_all(GDBusConnection * dbus_connection,
const char * bus_name,
const char * object_path,
const char * interface_name,
int timeout_msec,
GCancellable * cancellable,
NMDBusConnectionCallDefaultCb callback,
gpointer user_data)
{
nm_assert(callback);
g_dbus_connection_call(dbus_connection,
bus_name,
object_path,
DBUS_INTERFACE_PROPERTIES,
"GetAll",
g_variant_new("(s)", interface_name),
G_VARIANT_TYPE("(a{sv})"),
G_DBUS_CALL_FLAGS_NONE,
timeout_msec,
cancellable,
_nm_dbus_connection_call_default_cb,
nm_utils_user_data_pack(user_data, callback));
}
void
nm_dbus_connection_call_set(GDBusConnection * dbus_connection,
const char * bus_name,
const char * object_path,
const char * interface_name,
const char * property_name,
GVariant * value,
int timeout_msec,
GCancellable * cancellable,
NMDBusConnectionCallDefaultCb callback,
gpointer user_data)
{
g_dbus_connection_call(dbus_connection,
bus_name,
object_path,
DBUS_INTERFACE_PROPERTIES,
"Set",
g_variant_new("(ssv)", interface_name, property_name, value),
G_VARIANT_TYPE("()"),
G_DBUS_CALL_FLAGS_NONE,
timeout_msec,
cancellable,
callback ? _nm_dbus_connection_call_default_cb : NULL,
callback ? nm_utils_user_data_pack(user_data, callback) : NULL);
}
/*****************************************************************************/
static void
_nm_dbus_connection_call_get_managed_objects_cb(GObject * source,
GAsyncResult *res,
gpointer user_data)
{
gs_unref_variant GVariant *ret = NULL;
gs_unref_variant GVariant *arg = NULL;
gs_free_error GError * error = NULL;
gpointer orig_user_data;
NMDBusConnectionCallDefaultCb callback;
nm_utils_user_data_unpack(user_data, &orig_user_data, &callback);
ret = g_dbus_connection_call_finish(G_DBUS_CONNECTION(source), res, &error);
nm_assert((!!ret) != (!!error));
if (ret) {
nm_assert(g_variant_is_of_type(ret, G_VARIANT_TYPE("(a{oa{sa{sv}}})")));
arg = g_variant_get_child_value(ret, 0);
}
callback(arg, error, orig_user_data);
}
void
nm_dbus_connection_call_get_managed_objects(GDBusConnection * dbus_connection,
const char * bus_name,
const char * object_path,
GDBusCallFlags flags,
int timeout_msec,
GCancellable * cancellable,
NMDBusConnectionCallDefaultCb callback,
gpointer user_data)
{
nm_assert(callback);
g_dbus_connection_call(dbus_connection,
bus_name,
object_path,
DBUS_INTERFACE_OBJECT_MANAGER,
"GetManagedObjects",
NULL,
G_VARIANT_TYPE("(a{oa{sa{sv}}})"),
flags,
timeout_msec,
cancellable,
_nm_dbus_connection_call_get_managed_objects_cb,
nm_utils_user_data_pack(user_data, callback));
}
/*****************************************************************************/
static void
_call_finish_cb(GObject * source,
GAsyncResult *result,
gpointer user_data,
gboolean return_void,
gboolean strip_dbus_error)
{
gs_unref_object GTask *task = user_data;
gs_unref_variant GVariant *ret = NULL;
GError * error = NULL;
nm_assert(G_IS_DBUS_CONNECTION(source));
nm_assert(G_IS_TASK(user_data));
ret = g_dbus_connection_call_finish(G_DBUS_CONNECTION(source), result, &error);
if (!ret) {
if (strip_dbus_error)
g_dbus_error_strip_remote_error(error);
g_task_return_error(task, error);
return;
}
if (!return_void)
g_task_return_pointer(task, g_steal_pointer(&ret), (GDestroyNotify) g_variant_unref);
else {
nm_assert(g_variant_is_of_type(ret, G_VARIANT_TYPE("()")));
g_task_return_boolean(task, TRUE);
}
}
/**
* nm_dbus_connection_call_finish_void_cb:
*
* A default callback to pass as callback to g_dbus_connection_call().
*
* - user_data must be a GTask, whose reference will be consumed by the
* callback.
* - the return GVariant must be a empty tuple "()".
* - the GTask is returned either with error or TRUE boolean.
*/
void
nm_dbus_connection_call_finish_void_cb(GObject *source, GAsyncResult *result, gpointer user_data)
{
_call_finish_cb(source, result, user_data, TRUE, FALSE);
}
/**
* nm_dbus_connection_call_finish_void_strip_dbus_error_cb:
*
* Like nm_dbus_connection_call_finish_void_cb(). The difference
* is that on error this will first call g_dbus_error_strip_remote_error() on the error.
*/
void
nm_dbus_connection_call_finish_void_strip_dbus_error_cb(GObject * source,
GAsyncResult *result,
gpointer user_data)
{
_call_finish_cb(source, result, user_data, TRUE, TRUE);
}
/**
* nm_dbus_connection_call_finish_variant_cb:
*
* A default callback to pass as callback to g_dbus_connection_call().
*
* - user_data must be a GTask, whose reference will be consumed by the
* callback.
* - the GTask is returned either with error or with a pointer containing the GVariant.
*/
void
nm_dbus_connection_call_finish_variant_cb(GObject *source, GAsyncResult *result, gpointer user_data)
{
_call_finish_cb(source, result, user_data, FALSE, FALSE);
}
/**
* nm_dbus_connection_call_finish_variant_strip_dbus_error_cb:
*
* Like nm_dbus_connection_call_finish_variant_strip_dbus_error_cb(). The difference
* is that on error this will first call g_dbus_error_strip_remote_error() on the error.
*/
void
nm_dbus_connection_call_finish_variant_strip_dbus_error_cb(GObject * source,
GAsyncResult *result,
gpointer user_data)
{
_call_finish_cb(source, result, user_data, FALSE, TRUE);
}
/*****************************************************************************/
gboolean
_nm_dbus_error_is(GError *error, ...)
{
gs_free char *dbus_error = NULL;
const char * name;
va_list ap;
dbus_error = g_dbus_error_get_remote_error(error);
if (!dbus_error)
return FALSE;
va_start(ap, error);
while ((name = va_arg(ap, const char *))) {
if (nm_streq(dbus_error, name)) {
va_end(ap);
return TRUE;
}
}
va_end(ap);
return FALSE;
}