18c2aff776a775d34a4c9893a4c72e0434d68e36artem/***************************************************************************
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * CVSID: $Id$
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * hal-storage-unmount.c : Unmount wrapper
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * Copyright (C) 2006 David Zeuthen, <david@fubar.dk>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * This program is free software; you can redistribute it and/or modify
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * it under the terms of the GNU General Public License as published by
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * the Free Software Foundation; either version 2 of the License, or
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * (at your option) any later version.
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * This program is distributed in the hope that it will be useful,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * but WITHOUT ANY WARRANTY; without even the implied warranty of
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * GNU General Public License for more details.
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * You should have received a copy of the GNU General Public License
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * along with this program; if not, write to the Free Software
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem **************************************************************************/
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_CONFIG_H
18c2aff776a775d34a4c9893a4c72e0434d68e36artem# include <config.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <stdio.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <stdlib.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <string.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <glib.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <glib/gstdio.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef __FreeBSD__
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <fstab.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <sys/param.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <sys/ucred.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <sys/mount.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <limits.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <pwd.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#elif sun
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <fcntl.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <sys/mnttab.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <sys/vfstab.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#else
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <mntent.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <sys/types.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <unistd.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <libhal.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <libhal-storage.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include <libpolkit.h>
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#include "hal-storage-shared.h"
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic void
18c2aff776a775d34a4c9893a4c72e0434d68e36artemusage (void)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "This program should only be started by hald.\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem exit (1);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic void
18c2aff776a775d34a4c9893a4c72e0434d68e36arteminvalid_unmount_option (const char *option, const char *uid)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "org.freedesktop.Hal.Device.Volume.InvalidUnmountOption\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "The option '%s' is not allowed for uid=%s\n", option, uid);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem exit (1);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemint
18c2aff776a775d34a4c9893a4c72e0434d68e36artemmain (int argc, char *argv[])
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *udi;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *device;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalVolume *volume;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem DBusError error;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalContext *hal_ctx = NULL;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem DBusConnection *system_bus = NULL;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibPolKitContext *pol_ctx = NULL;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *invoked_by_uid;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *invoked_by_syscon_name;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int i;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char unmount_options[1024];
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char **given_options;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem gboolean use_lazy;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem gboolean use_force;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem const char *end;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!lock_hal_mtab ()) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_error ("Cannot obtain lock on /media/.hal-mtab");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem device = getenv ("HAL_PROP_BLOCK_DEVICE");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (device == NULL)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem udi = getenv ("HAL_PROP_INFO_UDI");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (udi == NULL)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_uid = getenv ("HAL_METHOD_INVOKED_BY_UID");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_syscon_name = getenv ("HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem dbus_error_init (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if ((hal_ctx = libhal_ctx_init_direct (&error)) == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("Cannot connect to hald\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LIBHAL_FREE_DBUS_ERROR (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem dbus_error_init (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem system_bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (system_bus == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("Cannot connect to the system bus\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LIBHAL_FREE_DBUS_ERROR (&error);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem pol_ctx = libpolkit_new_context (system_bus);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (pol_ctx == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("Cannot get libpolkit context\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_error ("Cannot get libpolkit context");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* read from stdin */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (strlen (fgets (unmount_options, sizeof (unmount_options), stdin)) > 0)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unmount_options [strlen (unmount_options) - 1] = '\0';
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* validate that input from stdin is UTF-8 */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!g_utf8_validate (unmount_options, -1, &end))
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_error ("Error validating unmount_options as UTF-8");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef DEBUG
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("unmount_options = '%s'\n", unmount_options);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* delete any trailing whitespace options from splitting the string */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem given_options = g_strsplit (unmount_options, "\t", 0);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem for (i = g_strv_length (given_options) - 1; i >= 0; --i) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (strlen (given_options[i]) > 0)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem break;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem given_options[i] = NULL;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem use_lazy = FALSE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem use_force = FALSE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* check unmount options */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem for (i = 0; given_options[i] != NULL; i++) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *given = given_options[i];
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (strcmp (given, "lazy") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem use_lazy = TRUE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else if (strcmp (given, "force") == 0) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem use_force = TRUE;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invalid_unmount_option (given, invoked_by_uid);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_strfreev (given_options);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem volume = libhal_volume_from_udi (hal_ctx, udi);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (volume == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalDrive *drive;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem drive = libhal_drive_from_udi (hal_ctx, udi);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (drive == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem usage ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem handle_unmount (hal_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem pol_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem udi, NULL, drive, device, invoked_by_uid,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_syscon_name, use_lazy, use_force,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem system_bus);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem const char *drive_udi;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalDrive *drive;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem drive_udi = libhal_volume_get_storage_device_udi (volume);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (drive_udi == NULL)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_error ("Cannot get drive_udi from volume");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem drive = libhal_drive_from_udi (hal_ctx, drive_udi);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (drive == NULL)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_error ("Cannot get drive from hal");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem handle_unmount (hal_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem pol_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem udi, volume, drive, device, invoked_by_uid,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_syscon_name, use_lazy, use_force,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem system_bus);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unlock_hal_mtab ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 0;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}