int weston_dbus_open(struct wl_event_loop *loop, DBusBusType bus,
DBusConnection **out, struct wl_event_source **ctx_out)
{
DBusConnection *c;
int r;
/* Ihhh, global state.. stupid dbus. */
dbus_connection_set_change_sigpipe(FALSE);
/* This is actually synchronous. It blocks for some authentication and
* setup. We just trust the dbus-server here and accept this blocking
* call. There is no real reason to complicate things further and make
* this asynchronous/non-blocking. A context should be created during
* thead/process/app setup, so blocking calls should be fine. */
c = dbus_bus_get_private(bus, NULL);
if (!c)
return -EIO;
dbus_connection_set_exit_on_disconnect(c, FALSE);
r = weston_dbus_bind(loop, c, ctx_out);
if (r < 0)
goto error;
*out = c;
return r;
error:
dbus_connection_close(c);
dbus_connection_unref(c);
return r;
}
static DBusConnection *virDBusBusInit(DBusBusType type, DBusError *dbuserr)
{
DBusConnection *bus;
/* Allocate and initialize a new HAL context */
dbus_connection_set_change_sigpipe(FALSE);
dbus_threads_init_default();
dbus_error_init(dbuserr);
bus = sharedBus ?
dbus_bus_get(type, dbuserr) :
dbus_bus_get_private(type, dbuserr);
if (!bus)
return NULL;
dbus_connection_set_exit_on_disconnect(bus, FALSE);
/* Register dbus watch callbacks */
if (!dbus_connection_set_watch_functions(bus,
virDBusAddWatch,
virDBusRemoveWatch,
virDBusToggleWatch,
bus, NULL)) {
return NULL;
}
return bus;
}
/**
* Description:
* WSM Debus initialize function
*
* Parameter:
* NULL
*
* Return:
* 0: Successed; -1: failed
*
*/
int wsm_dbus_init(void)
{
DBusError err;
DBusObjectPathVTable wsm_vtbl = {NULL, &wsm_dbus_msg_handler, NULL, NULL, NULL, NULL};
unsigned char dbus_name[WSM_PATH_MAX] = {0};
unsigned char obj_path[WSM_PATH_MAX] = {0};
sprintf(dbus_name, "%s%d_%d", WSM_DBUS_BUSNAME,local, vrrid);
sprintf(obj_path, "%s%d_%d", WSM_DBUS_OBJPATH,local, vrrid);
WSMLog(L_INFO, "%s: dbus name : %s\n", __func__, dbus_name);
WSMLog(L_INFO, "%s: obj name : %s\n", __func__, obj_path);
dbus_threads_init_default();
dbus_connection_set_change_sigpipe (1);
dbus_error_init (&err);
wsm_dbus_conn = dbus_bus_get_private (DBUS_BUS_SYSTEM, &err);
if (!wsm_dbus_conn)
{
WSMLog(L_CRIT, "%s: wsm_dbus_conn = NULL.\n", __func__);
return -1;
}
if (!dbus_connection_register_fallback (wsm_dbus_conn, obj_path, &wsm_vtbl, NULL))
{
WSMLog(L_CRIT, "%s: register fallback failed.\n", __func__);
return -1;
}
dbus_bus_request_name (wsm_dbus_conn, dbus_name, 0, &err);
if (dbus_error_is_set (&err))
{
WSMLog(L_CRIT, "%s: dbus_bus_request_name() ERR:%s\n", __func__,
err.message);
return -1;
}
dbus_connection_add_filter (wsm_dbus_conn, wsm_dbus_filter_function, NULL, NULL);
dbus_bus_add_match (wsm_dbus_conn,
"type='signal'"
",interface='"DBUS_INTERFACE_DBUS"'"
",sender='"DBUS_SERVICE_DBUS"'"
",member='NameOwnerChanged'",
NULL);
return 0;
}
int wbmd_dbus_reinit(void)
{
int i = 0;
DBusError dbus_error;
dbus_threads_init_default();
DBusObjectPathVTable wbmd_vtable = {NULL, &wbmd_dbus_message_handler, NULL, NULL, NULL, NULL};
dbus_connection_set_change_sigpipe (TRUE);
dbus_error_init (&dbus_error);
wbmd_dbus_connection = dbus_bus_get_private (DBUS_BUS_SYSTEM, &dbus_error);
if (wbmd_dbus_connection == NULL) {
wbmd_syslog_err("dbus_bus_get(): %s\n", dbus_error.message);
return FALSE;
}
// Use npd to handle subsection of NPD_DBUS_OBJPATH including slots
if (!dbus_connection_register_fallback (wbmd_dbus_connection, WBMD_DBUS_OBJPATH, &wbmd_vtable, NULL)) {
wbmd_syslog_err("can't register D-BUS handlers (fallback NPD). cannot continue.\n");
return FALSE;
}
i = dbus_bus_request_name (wbmd_dbus_connection, WBMD_DBUS_BUSNAME,
0, &dbus_error);
wbmd_syslog_debug_debug(WBMD_DBUS,"dbus_bus_request_name:%d",i);
if (dbus_error_is_set (&dbus_error)) {
wbmd_syslog_debug_debug(WBMD_DBUS,"dbus_bus_request_name(): %s",
dbus_error.message);
return FALSE;
}
dbus_connection_add_filter (wbmd_dbus_connection, wbmd_dbus_filter_function, NULL, NULL);
dbus_bus_add_match (wbmd_dbus_connection,
"type='signal'"
",interface='"DBUS_INTERFACE_DBUS"'"
",sender='"DBUS_SERVICE_DBUS"'"
",member='NameOwnerChanged'",
NULL);
return TRUE;
}
int bsd_dbus_init(void)
{
int i = 0;
DBusError dbus_error;
dbus_threads_init_default();
DBusObjectPathVTable bsd_vtable = {NULL, &bsd_dbus_message_handler, NULL, NULL, NULL, NULL};
dbus_connection_set_change_sigpipe (TRUE);
dbus_error_init (&dbus_error);
bsd_dbus_connection = dbus_bus_get_private (DBUS_BUS_SYSTEM, &dbus_error);
bsd_dbus_connection2 = dbus_bus_get_private (DBUS_BUS_SYSTEM, &dbus_error);
if (bsd_dbus_connection == NULL) {
bsd_syslog_err("dbus_bus_get(): %s\n", dbus_error.message);
return FALSE;
}
if (!dbus_connection_register_fallback (bsd_dbus_connection, BSD_DBUS_OBJPATH, &bsd_vtable, NULL)) {
bsd_syslog_err("can't register D-BUS handlers (fallback NPD). cannot continue.\n");
return FALSE;
}
i = dbus_bus_request_name (bsd_dbus_connection, BSD_DBUS_BUSNAME,
0, &dbus_error);
dbus_bus_request_name (bsd_dbus_connection2, "aw.bsd2",
0, &dbus_error);
if (dbus_error_is_set (&dbus_error)) {
bsd_syslog_debug_debug(BSD_DBUS,"dbus_bus_request_name(): %s",
dbus_error.message);
return FALSE;
}
dbus_connection_add_filter (bsd_dbus_connection, bsd_dbus_filter_function, NULL, NULL);
dbus_bus_add_match (bsd_dbus_connection,
"type='signal'"
",interface='"DBUS_INTERFACE_DBUS"'"
",sender='"DBUS_SERVICE_DBUS"'"
",member='NameOwnerChanged'",
NULL);
// printf("init finished\n");
return TRUE;
}
static gboolean
nm_dbus_manager_init_bus (NMDBusManager *self)
{
NMDBusManagerPrivate *priv = NM_DBUS_MANAGER_GET_PRIVATE (self);
GError *err = NULL;
if (priv->connection) {
nm_log_warn (LOGD_CORE, "DBus Manager already has a valid connection.");
return FALSE;
}
dbus_connection_set_change_sigpipe (TRUE);
priv->g_connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &err);
if (!priv->g_connection) {
nm_log_err (LOGD_CORE, "Could not get the system bus. Make sure "
"the message bus daemon is running! Message: %s",
err->message);
g_error_free (err);
return FALSE;
}
priv->connection = dbus_g_connection_get_connection (priv->g_connection);
dbus_connection_set_exit_on_disconnect (priv->connection, FALSE);
priv->proxy = dbus_g_proxy_new_for_name (priv->g_connection,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus");
priv->proxy_destroy_id = g_signal_connect (priv->proxy, "destroy",
G_CALLBACK (destroy_cb), self);
dbus_g_proxy_add_signal (priv->proxy, "NameOwnerChanged",
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_proxy_connect_signal (priv->proxy,
"NameOwnerChanged",
G_CALLBACK (proxy_name_owner_changed),
self, NULL);
return TRUE;
}
static NMCEService *
bm_ce_service_new (DBusGConnection *bus, DBusGProxy *proxy, BMConnectionList *list)
{
GObject *object;
DBusConnection *connection;
GError *err = NULL;
guint32 result;
g_return_val_if_fail (bus != NULL, NULL);
g_return_val_if_fail (proxy != NULL, NULL);
object = g_object_new (BM_TYPE_CE_SERVICE, NULL);
if (!object)
return NULL;
BM_CE_SERVICE (object)->list = list;
dbus_connection_set_change_sigpipe (TRUE);
connection = dbus_g_connection_get_connection (bus);
dbus_connection_set_exit_on_disconnect (connection, FALSE);
/* Register our single-instance service. Don't care if it fails. */
if (!dbus_g_proxy_call (proxy, "RequestName", &err,
G_TYPE_STRING, BM_CE_DBUS_SERVICE_NAME,
G_TYPE_UINT, DBUS_NAME_FLAG_DO_NOT_QUEUE,
G_TYPE_INVALID,
G_TYPE_UINT, &result,
G_TYPE_INVALID)) {
g_warning ("Could not acquire the connection editor service.\n"
" Message: '%s'", err->message);
g_error_free (err);
} else {
if (result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER)
g_warning ("Could not acquire the connection editor service as it is already taken.");
else {
/* success */
dbus_g_connection_register_g_object (bus, "/", object);
}
}
return (NMCEService *) object;
}
/*******************************************************************************
* igmp_snp_dbus_init
*
* DESCRIPTION:
* init the dbus ,include bus get and connection etc.
*
* INPUTS:
* null
*
* OUTPUTS:
* null
*
* RETURNS:
* IGMPSNP_RETURN_CODE_OK - init ok or can't register D-BUS handlers
* IGMPSNP_RETURN_CODE_DBUS_CONNECTION_E - bus get or request name or error set fail
*
* COMMENTS:
*
**
********************************************************************************/
int igmp_snp_dbus_init(void)
{
DBusError dbus_error;
int ret = IGMPSNP_RETURN_CODE_OK;
DBusObjectPathVTable igmp_snp_vtable = {NULL, &igmp_snp_dbus_message_handler, NULL, NULL, NULL, NULL};
igmp_snp_syslog_dbg ("IGMP>>DBUS init...\n");
dbus_connection_set_change_sigpipe (TRUE);
dbus_error_init (&dbus_error);
igmp_snp_dbus_connection = dbus_bus_get (DBUS_BUS_SYSTEM, &dbus_error);
if (igmp_snp_dbus_connection == NULL) {
igmp_snp_syslog_err ("IGMP>>dbus_bus_get(): %s", dbus_error.message);
return IGMPSNP_RETURN_CODE_DBUS_CONNECTION_E;
}
igmp_snp_syslog_dbg("IGMP>>igmp_snp_dbus_connection %p\n",igmp_snp_dbus_connection);
// Use npd to handle subsection of IGMP_DBUS_OBJPATH including slots
if (!dbus_connection_register_fallback (igmp_snp_dbus_connection, IGMP_DBUS_OBJPATH, &igmp_snp_vtable, NULL)) {
igmp_snp_syslog_err("IGMP>>can't register D-BUS handlers (fallback NPD). cannot continue.");
return IGMPSNP_RETURN_CODE_OK;
}
ret = dbus_bus_request_name (igmp_snp_dbus_connection, IGMP_DBUS_BUSNAME,0, &dbus_error);
if(-1 == ret)
{
igmp_snp_syslog_err("IGMP>>dbus request name err %d\n",ret);
ret = IGMPSNP_RETURN_CODE_DBUS_CONNECTION_E;
}
else
igmp_snp_syslog_dbg("IGMP>>dbus request name ok\n");
if (dbus_error_is_set (&dbus_error)) {
igmp_snp_syslog_err ("IGMP>>dbus_bus_request_name(): %s", dbus_error.message);
return IGMPSNP_RETURN_CODE_DBUS_CONNECTION_E;
}
return IGMPSNP_RETURN_CODE_OK;
}
/** Establish connection to the D-BUS daemon.
*
* @returns TRUE if connection could be established or if connection is already,
* established. FALSE if connection failed.
*/
gboolean ial_dbus_connect()
{
DBusError dbus_error;
if (dbus_connection == NULL) {
dbus_connection_set_change_sigpipe(TRUE);
dbus_error_init(&dbus_error);
dbus_connection = dbus_bus_get(DBUS_BUS_SYSTEM, &dbus_error);
if (dbus_connection == NULL) {
ERROR(("dbus_bus_get(): Error. (%s)", dbus_error.message));
return FALSE;
}
else {
INFO(("dbus_bus_get(): Success."));
return TRUE;
}
}
else {
INFO(("Already connected to D-Bus."));
return TRUE;
}
}
static NML2tpPppService *
nm_l2tp_ppp_service_new (NMConnection *connection,
GError **error)
{
NML2tpPppService *self = NULL;
DBusGConnection *bus;
DBusGProxy *proxy;
gboolean success = FALSE;
guint result;
bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, error);
if (!bus)
return NULL;
dbus_connection_set_change_sigpipe (TRUE);
proxy = dbus_g_proxy_new_for_name (bus,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus");
g_assert(proxy);
if (dbus_g_proxy_call (proxy, "RequestName", error,
G_TYPE_STRING, NM_DBUS_SERVICE_L2TP_PPP,
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &result,
G_TYPE_INVALID)) {
self = (NML2tpPppService *) g_object_new (NM_TYPE_L2TP_PPP_SERVICE, NULL);
g_assert(self);
dbus_g_connection_register_g_object (bus, NM_DBUS_PATH_L2TP_PPP, G_OBJECT (self));
success = TRUE;
} else {
g_warning (_("Could not register D-Bus service name. Message: %s"), (*error)->message);
}
g_object_unref (proxy);
dbus_g_connection_unref (bus);
return self;
}
static gboolean
request_dbus_name (DBusGConnection *bus)
{
DBusGProxy *proxy;
GError *error = NULL;
int request_name_result;
dbus_connection_set_change_sigpipe (TRUE);
dbus_connection_set_exit_on_disconnect (dbus_g_connection_get_connection (bus), FALSE);
proxy = dbus_g_proxy_new_for_name (bus,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus");
if (!dbus_g_proxy_call (proxy, "RequestName", &error,
G_TYPE_STRING, NM_DBUS_SERVICE_USER_SETTINGS,
G_TYPE_UINT, DBUS_NAME_FLAG_DO_NOT_QUEUE,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID)) {
g_warning ("Could not acquire the NetworkManagerUserSettings service.\n"
" Message: '%s'", error->message);
g_error_free (error);
return FALSE;
}
if (request_name_result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
g_warning ("Could not acquire the NetworkManagerUserSettings service "
"as it is already taken. Return: %d",
request_name_result);
return FALSE;
}
return TRUE;
}
//DbusHandler
DBusHandler::DBusHandler(Compositor& comp)
: compositor_(&comp)
{
DBusError err;
dbus_error_init(&err);
dbus_connection_set_change_sigpipe(false);
//todo: error checking everywhere
if(!(dbusConnection_ = dbus_bus_get_private(DBUS_BUS_SYSTEM, &err)))
{
std::string errStr;
checkError(err, errStr);
throw std::runtime_error("DBus::DBus: cant connect to dbus. " + errStr);
return;
}
dbus_connection_set_exit_on_disconnect(dbusConnection_, false);
//use dummy event fd
int fd;
if((fd = eventfd(0, EFD_CLOEXEC)) < 0)
{
throw std::runtime_error("DBus::DBus: cant create eventfd");
return;
}
//event source
dbusEventSource_ = wl_event_loop_add_fd(&comp.wlEventLoop(), fd, 0, Callbacks::dispatchDBus,
this);
close(fd);
wl_event_source_check(dbusEventSource_);
//watch
if(!dbus_connection_set_watch_functions(dbusConnection_, Callbacks::addWatch,
Callbacks::removeWatch, Callbacks::toggleWatch, this, nullptr))
{
throw std::runtime_error("dbus_connection_set_watch_functions failed");
return;
}
//timeout
if(!dbus_connection_set_timeout_functions(dbusConnection_, Callbacks::addTimeout,
Callbacks::removeTimeout, Callbacks::toggleTimeout, this, nullptr))
{
throw std::runtime_error("dbus_connection_set_timeout_functions failed");
return;
}
//filter
if(!dbus_connection_add_filter(dbusConnection_, Callbacks::dbusFilter, this, nullptr))
{
throw std::runtime_error("dbus add filter failed");
return;
}
//disconnected callback
signalCallbacks_.emplace_back(MsgCallback{DBUS_INTERFACE_LOCAL, "Diconnected",
nytl::memberCallback(&DBusHandler::disconnected, this)});
ny::sendLog("dbus handler succesfully set up");
}
