18c2aff776a775d34a4c9893a4c72e0434d68e36artem/***************************************************************************
18c2aff776a775d34a4c9893a4c72e0434d68e36artem *
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * hal-storage-eject.c : Eject method handler
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#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/* possible values: "Volume", "Storage" */
18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic char *devtype = "Volume";
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic void
18c2aff776a775d34a4c9893a4c72e0434d68e36artemusage (void)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "This program should only be started by hald.\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem exit (1);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemvoid static
18c2aff776a775d34a4c9893a4c72e0434d68e36artemunknown_eject_error (const char *detail)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "org.freedesktop.Hal.Device.%s.UnknownFailure\n", devtype);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "%s\n", detail);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem exit (1);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemstatic void
18c2aff776a775d34a4c9893a4c72e0434d68e36arteminvalid_eject_option (const char *option, const char *uid)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "org.freedesktop.Hal.Device.Volume.InvalidEjectOption\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem fprintf (stderr, "The option '%s' is not allowed for uid=%s\n", option, uid);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem exit (1);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artemint
18c2aff776a775d34a4c9893a4c72e0434d68e36artemmain (int argc, char *argv[])
18c2aff776a775d34a4c9893a4c72e0434d68e36artem{
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *udi;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *device;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem const char *drive_udi;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalDrive *drive;
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 char **volume_udis;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int num_volumes;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem int i;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char eject_options[1024];
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char **given_options;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem const char *end;
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_eject_error ("Cannot get libpolkit context");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* read from stdin */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (strlen (fgets (eject_options, sizeof (eject_options), stdin)) > 0)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem eject_options [strlen (eject_options) - 1] = '\0';
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* validate that input from stdin is UTF-8 */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!g_utf8_validate (eject_options, -1, &end))
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_eject_error ("Error validating eject_options as UTF-8");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef DEBUG
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("eject_options = '%s'\n", eject_options);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* delete any trailing whitespace options from splitting the string */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem given_options = g_strsplit (eject_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 /* check eject options */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem for (i = 0; given_options[i] != NULL; i++) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *given = given_options[i];
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* none supported right now */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invalid_eject_option (given, invoked_by_uid);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem g_strfreev (given_options);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* should be either volume or storage */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if ((volume = libhal_volume_from_udi (hal_ctx, udi)) != NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem drive_udi = libhal_volume_get_storage_device_udi (volume);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem drive_udi = g_strdup (udi);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem devtype = "Storage";
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (drive_udi == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_eject_error ("Cannot get drive udi");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if ((drive = libhal_drive_from_udi (hal_ctx, drive_udi)) == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_eject_error ("Cannot get drive from udi");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* first, unmount all volumes */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem volume_udis = libhal_drive_find_all_volumes (hal_ctx, drive, &num_volumes);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (volume_udis == NULL)
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_eject_error ("Cannot get all enclosed volumes");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem for (i = 0; i < num_volumes; i++) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem char *volume_udi;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem LibHalVolume *volume_to_unmount;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem volume_udi = volume_udis[i];
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef DEBUG
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf ("processing drive's volume %s (%d of %d)\n", volume_udi, i + 1, num_volumes);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem volume_to_unmount = libhal_volume_from_udi (hal_ctx, volume_udi);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (volume_to_unmount == NULL) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_eject_error ("Cannot get volume object");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (libhal_volume_is_mounted (volume_to_unmount)) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef DEBUG
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf (" unmounting\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* only lock around unmount call because hald's /proc/mounts handler
18c2aff776a775d34a4c9893a4c72e0434d68e36artem * will also want to lock the /media/.hal-mtab-lock file for peeking
18c2aff776a775d34a4c9893a4c72e0434d68e36artem */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem if (!lock_hal_mtab ()) {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unknown_eject_error ("Cannot obtain lock on /media/.hal-mtab");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem handle_unmount (hal_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem pol_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem volume_udi, volume_to_unmount, drive,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem libhal_volume_get_device_file (volume_to_unmount),
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_uid, invoked_by_syscon_name,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem FALSE, FALSE, system_bus); /* use neither lazy nor force */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem unlock_hal_mtab ();
18c2aff776a775d34a4c9893a4c72e0434d68e36artem } else {
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef DEBUG
18c2aff776a775d34a4c9893a4c72e0434d68e36artem printf (" not mounted\n");
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem libhal_volume_free (volume_to_unmount);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem }
18c2aff776a775d34a4c9893a4c72e0434d68e36artem libhal_free_string_array (volume_udis);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem /* now attempt the eject */
18c2aff776a775d34a4c9893a4c72e0434d68e36artem handle_eject (hal_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#ifdef HAVE_POLKIT
18c2aff776a775d34a4c9893a4c72e0434d68e36artem pol_ctx,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem#endif
18c2aff776a775d34a4c9893a4c72e0434d68e36artem libhal_drive_get_udi (drive),
18c2aff776a775d34a4c9893a4c72e0434d68e36artem drive,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem libhal_drive_get_device_file (drive),
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_uid,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem invoked_by_syscon_name,
18c2aff776a775d34a4c9893a4c72e0434d68e36artem FALSE, system_bus);
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem return 0;
18c2aff776a775d34a4c9893a4c72e0434d68e36artem}
18c2aff776a775d34a4c9893a4c72e0434d68e36artem
18c2aff776a775d34a4c9893a4c72e0434d68e36artem