/**
* dbus_server_setup_with_g_main:
* @server: the server
* @context: the #GMainContext or #NULL for default
*
* Sets the watch and timeout functions of a #DBusServer
* to integrate the server with the GLib main loop.
* In most cases the context argument should be #NULL.
*
* If called twice for the same context, does nothing the second
* time. If called once with context A and once with context B,
* context B replaces context A as the context monitoring the
* connection.
*/
void
dbus_server_setup (DBusServer *server,
GMainContext *context)
{
ConnectionSetup *old_setup;
ConnectionSetup *cs;
do {
/* FIXME we never free the slot, so its refcount just keeps growing,
* which is kind of broken.
*/
dbus_server_allocate_data_slot (&server_slot);
if (server_slot < 0)
break;
if (context == NULL)
context = g_main_context_default ();
cs = NULL;
old_setup = dbus_server_get_data (server, server_slot);
if (old_setup != NULL) {
if (old_setup->context == context)
return; /* nothing to do */
cs = connection_setup_new_from_old (context, old_setup);
/* Nuke the old setup */
dbus_server_set_data (server, server_slot, NULL, NULL);
old_setup = NULL;
}
if (cs == NULL)
cs = connection_setup_new (context, NULL);
if (!dbus_server_set_data (server, server_slot, cs,
(DBusFreeFunction)connection_setup_free))
break;
if (!dbus_server_set_watch_functions (server,
add_watch,
remove_watch,
watch_toggled,
cs, NULL))
break;
if (!dbus_server_set_timeout_functions (server,
add_timeout,
remove_timeout,
timeout_toggled,
cs, NULL))
break;
return;
} while (0);
g_error ("Not enough memory to set up DBusServer for use with GLib");
}
static dbus_bool_t
setup_server (BusContext *context,
DBusServer *server,
char **auth_mechanisms,
DBusError *error)
{
BusServerData *bd;
bd = dbus_new0 (BusServerData, 1);
if (bd == NULL || !dbus_server_set_data (server,
server_data_slot,
bd, free_server_data))
{
dbus_free (bd);
BUS_SET_OOM (error);
return FALSE;
}
bd->context = context;
if (!dbus_server_set_auth_mechanisms (server, (const char**) auth_mechanisms))
{
BUS_SET_OOM (error);
return FALSE;
}
dbus_server_set_new_connection_function (server,
new_connection_callback,
context, NULL);
if (!dbus_server_set_watch_functions (server,
add_server_watch,
remove_server_watch,
toggle_server_watch,
server,
NULL))
{
BUS_SET_OOM (error);
return FALSE;
}
if (!dbus_server_set_timeout_functions (server,
add_server_timeout,
remove_server_timeout,
NULL,
server, NULL))
{
BUS_SET_OOM (error);
return FALSE;
}
return TRUE;
}
void
test_server_shutdown (DBusLoop *loop,
DBusServer *server)
{
dbus_server_disconnect (server);
if (!dbus_server_set_watch_functions (server,
NULL, NULL, NULL,
NULL,
NULL))
_dbus_assert_not_reached ("setting watch functions to NULL failed");
if (!dbus_server_set_timeout_functions (server,
NULL, NULL, NULL,
NULL,
NULL))
_dbus_assert_not_reached ("setting timeout functions to NULL failed");
}
dbus_bool_t
test_server_setup (DBusLoop *loop,
DBusServer *server)
{
ServerData *sd;
sd = serverdata_new (loop, server);
if (sd == NULL)
goto nomem;
if (!dbus_server_set_watch_functions (server,
add_server_watch,
remove_server_watch,
toggle_server_watch,
sd,
serverdata_free))
{
goto nomem;
}
sd = serverdata_new (loop, server);
if (sd == NULL)
goto nomem;
if (!dbus_server_set_timeout_functions (server,
add_server_timeout,
remove_server_timeout,
NULL,
sd, serverdata_free))
{
goto nomem;
}
return TRUE;
nomem:
if (sd)
serverdata_free (sd);
test_server_shutdown (loop, server);
return FALSE;
}
Integrator::Integrator( DBusServer *server, QObject *parent )
: QObject( parent ), m_server( server )
{
m_connection = reinterpret_cast<DBusConnection*>( m_server );
m_timeouts.setAutoDelete( true );
dbus_server_set_watch_functions( m_server,
dbusAddWatch,
dbusRemoveWatch,
dbusToggleWatch,
this, 0 );
dbus_server_set_timeout_functions( m_server,
dbusAddTimeout,
dbusRemoveTimeout,
dbusToggleTimeout,
this, 0 );
dbus_server_set_new_connection_function( m_server,
dbusNewConnection,
this, 0 );
}
/*
* dbus_new_server
* Set up a D-BUS server, integrate with the event loop
* for handling file descriptor and timed events
*/
int sbus_new_server(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const char *address,
uid_t uid, gid_t gid,
bool use_symlink,
struct sbus_connection **_server,
sbus_server_conn_init_fn init_fn,
void *init_pvt_data)
{
struct sbus_connection *server;
DBusServer *dbus_server;
DBusError dbus_error;
dbus_bool_t dbret;
char *tmp;
int ret, tmp_ret;
char *filename;
char *symlink_filename = NULL;
const char *socket_address;
struct stat stat_buf;
TALLOC_CTX *tmp_ctx;
*_server = NULL;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) return ENOMEM;
socket_address = get_socket_address(tmp_ctx, address, use_symlink);
if (!socket_address) {
ret = ENOMEM;
goto done;
}
/* Set up D-BUS server */
dbus_error_init(&dbus_error);
dbus_server = dbus_server_listen(socket_address, &dbus_error);
if (!dbus_server) {
DEBUG(SSSDBG_CRIT_FAILURE,
"dbus_server_listen failed! (name=%s, message=%s)\n",
dbus_error.name, dbus_error.message);
if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
ret = EIO;
goto done;
}
filename = strchr(socket_address, '/');
if (filename == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Unexpected dbus address [%s].\n", socket_address);
ret = EIO;
goto done;
}
if (use_symlink) {
symlink_filename = strchr(address, '/');
if (symlink_filename == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Unexpected dbus address [%s].\n", address);
ret = EIO;
goto done;
}
ret = create_socket_symlink(filename, symlink_filename);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Could not create symlink [%d]: %s\n",
ret, strerror(ret));
ret = EIO;
goto done;
}
}
/* Both check_file and chmod can handle both the symlink and
* the socket */
ret = check_file(filename,
getuid(), getgid(), S_IFSOCK, S_IFMT, &stat_buf, true);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "check_file failed for [%s].\n", filename);
ret = EIO;
goto done;
}
if ((stat_buf.st_mode & ~S_IFMT) != (S_IRUSR|S_IWUSR)) {
ret = chmod(filename, (S_IRUSR|S_IWUSR));
if (ret != EOK) {
ret = errno;
DEBUG(SSSDBG_CRIT_FAILURE,
"chmod failed for [%s]: [%d][%s].\n", filename, ret,
sss_strerror(ret));
ret = EIO;
goto done;
}
}
if (stat_buf.st_uid != uid || stat_buf.st_gid != gid) {
ret = chown(filename, uid, gid);
if (ret != EOK) {
ret = errno;
DEBUG(SSSDBG_CRIT_FAILURE,
"chown failed for [%s]: [%d][%s].\n", filename, ret,
sss_strerror(ret));
ret = EIO;
goto done;
}
}
tmp = dbus_server_get_address(dbus_server);
DEBUG(SSSDBG_TRACE_FUNC, "D-BUS Server listening on %s\n", tmp);
free(tmp);
server = talloc_zero(tmp_ctx, struct sbus_connection);
if (!server) {
ret = ENOMEM;
goto done;
}
server->ev = ev;
server->type = SBUS_SERVER;
server->dbus.server = dbus_server;
server->srv_init_fn = init_fn;
server->srv_init_data = init_pvt_data;
talloc_set_destructor((TALLOC_CTX *)server, sbus_server_destructor);
if (use_symlink) {
server->symlink = talloc_strdup(server, symlink_filename);
if (!server->symlink) {
ret = ENOMEM;
goto done;
}
}
/* Set up D-BUS new connection handler */
dbus_server_set_new_connection_function(server->dbus.server,
sbus_server_init_new_connection,
server, NULL);
/* Set up DBusWatch functions */
dbret = dbus_server_set_watch_functions(server->dbus.server,
sbus_add_watch,
sbus_remove_watch,
sbus_toggle_watch,
server, NULL);
if (!dbret) {
DEBUG(SSSDBG_CONF_SETTINGS,
"Error setting up D-BUS server watch functions\n");
ret = EIO;
goto done;
}
/* Set up DBusTimeout functions */
dbret = dbus_server_set_timeout_functions(server->dbus.server,
sbus_add_timeout,
sbus_remove_timeout,
sbus_toggle_timeout,
server, NULL);
if (!dbret) {
DEBUG(SSSDBG_CONF_SETTINGS,
"Error setting up D-BUS server timeout functions\n");
dbus_server_set_watch_functions(server->dbus.server,
NULL, NULL, NULL, NULL, NULL);
ret = EIO;
goto done;
}
*_server = talloc_steal(mem_ctx, server);
ret = EOK;
done:
if (ret != EOK && symlink_filename) {
tmp_ret = unlink(symlink_filename);
/* non-fatal failure */
if (tmp_ret != EOK) {
tmp_ret = errno;
DEBUG(SSSDBG_MINOR_FAILURE,
"Failed to remove symbolic link '%s': %d [%s]!\n",
symlink_filename, tmp_ret, sss_strerror(tmp_ret));
}
}
talloc_free(tmp_ctx);
return ret;
}
