static void
socket_disconnect (DBusServer *server)
{
DBusServerSocket *socket_server = (DBusServerSocket*) server;
int i;
HAVE_LOCK_CHECK (server);
for (i = 0 ; i < socket_server->n_fds ; i++)
{
if (socket_server->watch[i])
{
_dbus_server_remove_watch (server,
socket_server->watch[i]);
_dbus_watch_unref (socket_server->watch[i]);
socket_server->watch[i] = NULL;
}
_dbus_close_socket (socket_server->fds[i], NULL);
socket_server->fds[i] = -1;
}
if (socket_server->socket_name != NULL)
{
DBusString tmp;
_dbus_string_init_const (&tmp, socket_server->socket_name);
_dbus_delete_file (&tmp, NULL);
}
if (server->published_address)
_dbus_daemon_unpublish_session_bus_address();
HAVE_LOCK_CHECK (server);
}
/**
* deletes the noncefile and frees the DBusNonceFile object.
*
* @param noncefile the nonce file to delete. Contents will be freed.
* @param error error details if the nonce file could not be deleted
* @return TRUE
*/
dbus_bool_t
_dbus_noncefile_delete (DBusNonceFile *noncefile,
DBusError *error)
{
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
_dbus_delete_file (&noncefile->path, error);
_dbus_string_free (&noncefile->dir);
_dbus_string_free (&noncefile->path);
return TRUE;
}
static void
_dbus_keyring_unlock (DBusKeyring *keyring)
{
DBusError error;
dbus_error_init (&error);
if (!_dbus_delete_file (&keyring->filename_lock, &error))
{
_dbus_warn ("Failed to delete lock file: %s\n",
error.message);
dbus_error_free (&error);
}
}
static dbus_bool_t
_dbus_keyring_lock (DBusKeyring *keyring)
{
int n_timeouts;
n_timeouts = 0;
while (n_timeouts < MAX_LOCK_TIMEOUTS)
{
DBusError error;
dbus_error_init (&error);
if (_dbus_create_file_exclusively (&keyring->filename_lock,
&error))
break;
_dbus_verbose ("Did not get lock file, sleeping %d milliseconds (%s)\n",
LOCK_TIMEOUT_MILLISECONDS, error.message);
dbus_error_free (&error);
_dbus_sleep_milliseconds (LOCK_TIMEOUT_MILLISECONDS);
++n_timeouts;
}
if (n_timeouts == MAX_LOCK_TIMEOUTS)
{
DBusError error;
_dbus_verbose ("Lock file timed out %d times, assuming stale\n",
n_timeouts);
dbus_error_init (&error);
if (!_dbus_delete_file (&keyring->filename_lock, &error))
{
_dbus_verbose ("Couldn't delete old lock file: %s\n",
error.message);
dbus_error_free (&error);
return FALSE;
}
if (!_dbus_create_file_exclusively (&keyring->filename_lock,
&error))
{
_dbus_verbose ("Couldn't create lock file after deleting stale one: %s\n",
error.message);
dbus_error_free (&error);
return FALSE;
}
}
return TRUE;
}
/**
* deletes the noncefile and frees the DBusNonceFile object.
*
* If noncefile_location points to #NULL, nothing is freed or deleted,
* similar to dbus_error_free().
*
* @param noncefile_location the nonce file to delete. Contents will be freed and cleared to #NULL.
* @param error error details if the nonce file could not be deleted
* @return TRUE
*/
dbus_bool_t
_dbus_noncefile_delete (DBusNonceFile **noncefile_location,
DBusError *error)
{
DBusNonceFile *noncefile;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
_dbus_assert (noncefile_location != NULL);
noncefile = *noncefile_location;
*noncefile_location = NULL;
if (noncefile == NULL)
{
/* Nothing to do */
return TRUE;
}
_dbus_delete_file (&noncefile->path, error);
_dbus_string_free (&noncefile->dir);
_dbus_string_free (&noncefile->path);
dbus_free (noncefile);
return TRUE;
}
/* This code only gets executed the first time the
* config files are parsed. It is not executed
* when config files are reloaded.
*/
static dbus_bool_t
process_config_first_time_only (BusContext *context,
BusConfigParser *parser,
const DBusString *address,
BusContextFlags flags,
DBusError *error)
{
DBusString log_prefix;
DBusList *link;
DBusList **addresses;
const char *user, *pidfile;
char **auth_mechanisms;
DBusList **auth_mechanisms_list;
int len;
dbus_bool_t retval;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
retval = FALSE;
auth_mechanisms = NULL;
pidfile = NULL;
_dbus_init_system_log (TRUE);
if (flags & BUS_CONTEXT_FLAG_SYSTEMD_ACTIVATION)
context->systemd_activation = TRUE;
else
context->systemd_activation = FALSE;
/* Check for an existing pid file. Of course this is a race;
* we'd have to use fcntl() locks on the pid file to
* avoid that. But we want to check for the pid file
* before overwriting any existing sockets, etc.
*/
if (flags & BUS_CONTEXT_FLAG_WRITE_PID_FILE)
pidfile = bus_config_parser_get_pidfile (parser);
if (pidfile != NULL)
{
DBusString u;
DBusStat stbuf;
_dbus_string_init_const (&u, pidfile);
if (_dbus_stat (&u, &stbuf, NULL))
{
#ifdef DBUS_CYGWIN
DBusString p;
long /* int */ pid;
_dbus_string_init (&p);
_dbus_file_get_contents(&p, &u, NULL);
_dbus_string_parse_int(&p, 0, &pid, NULL);
_dbus_string_free(&p);
if ((kill((int)pid, 0))) {
dbus_set_error(NULL, DBUS_ERROR_FILE_EXISTS,
"pid %ld not running, removing stale pid file\n",
pid);
_dbus_delete_file(&u, NULL);
} else {
#endif
dbus_set_error (error, DBUS_ERROR_FAILED,
"The pid file \"%s\" exists, if the message bus is not running, remove this file",
pidfile);
goto failed;
#ifdef DBUS_CYGWIN
}
#endif
}
}
/* keep around the pid filename so we can delete it later */
context->pidfile = _dbus_strdup (pidfile);
/* note that type may be NULL */
context->type = _dbus_strdup (bus_config_parser_get_type (parser));
if (bus_config_parser_get_type (parser) != NULL && context->type == NULL)
goto oom;
user = bus_config_parser_get_user (parser);
if (user != NULL)
{
context->user = _dbus_strdup (user);
if (context->user == NULL)
goto oom;
}
/* Set up the prefix for syslog messages */
if (!_dbus_string_init (&log_prefix))
goto oom;
if (context->type && !strcmp (context->type, "system"))
{
if (!_dbus_string_append (&log_prefix, "[system] "))
goto oom;
}
else if (context->type && !strcmp (context->type, "session"))
{
DBusCredentials *credentials;
credentials = _dbus_credentials_new_from_current_process ();
if (!credentials)
goto oom;
if (!_dbus_string_append (&log_prefix, "[session "))
{
_dbus_credentials_unref (credentials);
goto oom;
}
if (!_dbus_credentials_to_string_append (credentials, &log_prefix))
{
_dbus_credentials_unref (credentials);
goto oom;
}
if (!_dbus_string_append (&log_prefix, "] "))
{
_dbus_credentials_unref (credentials);
goto oom;
}
_dbus_credentials_unref (credentials);
}
if (!_dbus_string_steal_data (&log_prefix, &context->log_prefix))
goto oom;
_dbus_string_free (&log_prefix);
/* Build an array of auth mechanisms */
auth_mechanisms_list = bus_config_parser_get_mechanisms (parser);
len = _dbus_list_get_length (auth_mechanisms_list);
if (len > 0)
{
int i;
auth_mechanisms = dbus_new0 (char*, len + 1);
if (auth_mechanisms == NULL)
goto oom;
i = 0;
link = _dbus_list_get_first_link (auth_mechanisms_list);
while (link != NULL)
{
auth_mechanisms[i] = _dbus_strdup (link->data);
if (auth_mechanisms[i] == NULL)
goto oom;
link = _dbus_list_get_next_link (auth_mechanisms_list, link);
i += 1;
}
}