/**
* udisks_daemon_util_on_user_seat:
* @daemon: A #UDisksDaemon.
* @object: The #GDBusObject that the call is on or %NULL.
* @user: The user to check for.
*
* Checks whether the device represented by @object (if any) is plugged into
* a seat where the caller represented by @user is logged in and active.
*
* This works if @object is a drive or a block object.
*
* Returns: %TRUE if @object is on the same seat as one of @user's
* active sessions, %FALSE otherwise.
*/
gboolean
udisks_daemon_util_on_user_seat (UDisksDaemon *daemon,
UDisksObject *object,
uid_t user)
{
#if !defined(HAVE_LIBSYSTEMD_LOGIN)
/* if we don't have systemd, assume it's always the same seat */
return TRUE;
#else
gboolean ret = FALSE;
char *session = NULL;
char *seat = NULL;
const gchar *drive_seat;
UDisksObject *drive_object = NULL;
UDisksDrive *drive = NULL;
/* if we don't have logind, assume it's always the same seat */
if (!LOGIND_AVAILABLE())
return TRUE;
if (UDISKS_IS_LINUX_BLOCK_OBJECT (object))
{
UDisksLinuxBlockObject *linux_block_object;
UDisksBlock *block;
linux_block_object = UDISKS_LINUX_BLOCK_OBJECT (object);
block = udisks_object_get_block (UDISKS_OBJECT (linux_block_object));
if (block != NULL)
{
drive_object = udisks_daemon_find_object (daemon, udisks_block_get_drive (block));
g_object_unref (block);
}
}
else if (UDISKS_IS_LINUX_DRIVE_OBJECT (object))
{
drive_object = g_object_ref (object);
}
if (drive_object == NULL)
goto out;
drive = udisks_object_get_drive (UDISKS_OBJECT (drive_object));
if (drive == NULL)
goto out;
drive_seat = udisks_drive_get_seat (drive);
if (drive_seat != NULL && sd_uid_is_on_seat (user, TRUE, drive_seat) > 0)
{
ret = TRUE;
goto out;
}
out:
free (seat);
free (session);
g_clear_object (&drive_object);
g_clear_object (&drive);
return ret;
#endif /* HAVE_LIBSYSTEMD_LOGIN */
}
/**
* udisks_linux_drive_object_get_devices:
* @object: A #UDisksLinuxDriveObject.
*
* Gets the current #UDisksLinuxDevice objects associated with @object.
*
* Returns: A list of #UDisksLinuxDevice objects. Free each element with
* g_object_unref(), then free the list with g_list_free().
*/
GList *
udisks_linux_drive_object_get_devices (UDisksLinuxDriveObject *object)
{
GList *ret;
g_return_val_if_fail (UDISKS_IS_LINUX_DRIVE_OBJECT (object), NULL);
ret = g_list_copy (object->devices);
g_list_foreach (ret, (GFunc) g_object_ref, NULL);
return ret;
}
/**
* udisks_linux_drive_object_uevent:
* @object: A #UDisksLinuxDriveObject.
* @action: Uevent action or %NULL
* @device: A #UDisksLinuxDevice device object or %NULL if the device hasn't changed.
*
* Updates all information on interfaces on @drive.
*/
void
udisks_linux_drive_object_uevent (UDisksLinuxDriveObject *object,
const gchar *action,
UDisksLinuxDevice *device)
{
GList *link;
gboolean conf_changed;
g_return_if_fail (UDISKS_IS_LINUX_DRIVE_OBJECT (object));
g_return_if_fail (device == NULL || UDISKS_IS_LINUX_DEVICE (device));
link = NULL;
if (device != NULL)
link = find_link_for_sysfs_path (object, g_udev_device_get_sysfs_path (device->udev_device));
if (g_strcmp0 (action, "remove") == 0)
{
if (link != NULL)
{
g_object_unref (UDISKS_LINUX_DEVICE (link->data));
object->devices = g_list_delete_link (object->devices, link);
}
else
{
udisks_warning ("Drive doesn't have device with sysfs path %s on remove event",
g_udev_device_get_sysfs_path (device->udev_device));
}
}
else
{
if (link != NULL)
{
g_object_unref (UDISKS_LINUX_DEVICE (link->data));
link->data = g_object_ref (device);
}
else
{
if (device != NULL)
object->devices = g_list_append (object->devices, g_object_ref (device));
}
}
conf_changed = FALSE;
conf_changed |= update_iface (object, action, drive_check, drive_connect, drive_update,
UDISKS_TYPE_LINUX_DRIVE, &object->iface_drive);
conf_changed |= update_iface (object, action, drive_ata_check, drive_ata_connect, drive_ata_update,
UDISKS_TYPE_LINUX_DRIVE_ATA, &object->iface_drive_ata);
if (conf_changed)
apply_configuration (object);
}
/**
* udisks_linux_drive_object_get_siblings:
* @object: A #UDisksLinuxDriveObject.
*
* Gets the siblings for @object, if any.
*
* Returns: (transfer full) (element-type UDisksLinuxDriveObject): A list of #UDisksLinuxDriveObject
* instances. The returned list should be freed with g_list_free() after each element has been
* freed with g_object_unref().
*/
GList *
udisks_linux_drive_object_get_siblings (UDisksLinuxDriveObject *object)
{
GDBusObjectManagerServer *object_manager;
GList *ret = NULL;
GList *objects = NULL;
GList *l;
gchar *sibling_id = NULL;
if (object->iface_drive == NULL)
goto out;
sibling_id = udisks_drive_dup_sibling_id (object->iface_drive);
if (sibling_id == NULL || strlen (sibling_id) == 0)
goto out;
object_manager = udisks_daemon_get_object_manager (object->daemon);
objects = g_dbus_object_manager_get_objects (G_DBUS_OBJECT_MANAGER (object_manager));
for (l = objects; l != NULL; l = l->next)
{
GDBusObjectSkeleton *iter_object = G_DBUS_OBJECT_SKELETON (l->data);
UDisksLinuxDriveObject *iter_linux_drive_object;
if (!UDISKS_IS_LINUX_DRIVE_OBJECT (iter_object))
continue;
iter_linux_drive_object = UDISKS_LINUX_DRIVE_OBJECT (iter_object);
if (iter_linux_drive_object->iface_drive != NULL &&
g_strcmp0 (udisks_drive_get_sibling_id (iter_linux_drive_object->iface_drive), sibling_id) == 0)
{
ret = g_list_prepend (ret, g_object_ref (iter_object));
}
}
out:
ret = g_list_reverse (ret);
g_list_foreach (objects, (GFunc) g_object_unref, NULL);
g_list_free (objects);
g_free (sibling_id);
return ret;
}
/**
* udisks_linux_drive_object_is_not_in_use:
* @object: A #UDisksLinuxDriveObject.
* @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: A #GError or %NULL.
*
* Checks if the drive represented by @object is in use and sets
* @error if so.
*
* Returns: %TRUE if @object is not is use, %FALSE if @error is set.
*/
gboolean
udisks_linux_drive_object_is_not_in_use (UDisksLinuxDriveObject *object,
GCancellable *cancellable,
GError **error)
{
GDBusObjectManagerServer *object_manager;
const gchar *drive_object_path;
gboolean ret = TRUE;
GList *objects = NULL;
GList *l;
g_return_val_if_fail (UDISKS_IS_LINUX_DRIVE_OBJECT (object), FALSE);
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
drive_object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (object));
object_manager = udisks_daemon_get_object_manager (object->daemon);
objects = g_dbus_object_manager_get_objects (G_DBUS_OBJECT_MANAGER (object_manager));
/* Visit all block devices related to the drive... */
for (l = objects; l != NULL; l = l->next)
{
GDBusObjectSkeleton *iter_object = G_DBUS_OBJECT_SKELETON (l->data);
UDisksBlock *block;
UDisksFilesystem *filesystem;
if (!UDISKS_IS_LINUX_BLOCK_OBJECT (iter_object))
continue;
block = udisks_object_peek_block (UDISKS_OBJECT (iter_object));
filesystem = udisks_object_peek_filesystem (UDISKS_OBJECT (iter_object));
if (g_strcmp0 (udisks_block_get_drive (block), drive_object_path) != 0)
continue;
/* bail if block device is mounted */
if (filesystem != NULL)
{
if (g_strv_length ((gchar **) udisks_filesystem_get_mount_points (filesystem)) > 0)
{
g_set_error (error,
UDISKS_ERROR,
UDISKS_ERROR_DEVICE_BUSY,
"Device %s is mounted",
udisks_block_get_preferred_device (block));
ret = FALSE;
goto out;
}
}
/* bail if block device is unlocked (LUKS) */
if (is_block_unlocked (objects, g_dbus_object_get_object_path (G_DBUS_OBJECT (iter_object))))
{
g_set_error (error,
UDISKS_ERROR,
UDISKS_ERROR_DEVICE_BUSY,
"Encrypted device %s is unlocked",
udisks_block_get_preferred_device (block));
ret = FALSE;
goto out;
}
}
out:
g_list_free_full (objects, g_object_unref);
return ret;
}
/**
* udisks_linux_drive_object_get_daemon:
* @object: A #UDisksLinuxDriveObject.
*
* Gets the daemon used by @object.
*
* Returns: A #UDisksDaemon. Do not free, the object is owned by @object.
*/
UDisksDaemon *
udisks_linux_drive_object_get_daemon (UDisksLinuxDriveObject *object)
{
g_return_val_if_fail (UDISKS_IS_LINUX_DRIVE_OBJECT (object), NULL);
return object->daemon;
}
/**
* udisks_daemon_util_on_same_seat:
* @daemon: A #UDisksDaemon.
* @object: The #GDBusObject that the call is on or %NULL.
* @process: The process to check for.
*
* Checks whether the device represented by @object (if any) is plugged into
* a seat where the caller represented by @process is logged in.
*
* This works if @object is a drive or a block object.
*
* Returns: %TRUE if @object and @process is on the same seat, %FALSE otherwise.
*/
gboolean
udisks_daemon_util_on_same_seat (UDisksDaemon *daemon,
UDisksObject *object,
pid_t process)
{
#if !defined(HAVE_LIBSYSTEMD_LOGIN)
/* if we don't have systemd, assume it's always the same seat */
return TRUE;
#else
gboolean ret = FALSE;
char *session = NULL;
char *seat = NULL;
const gchar *drive_seat;
UDisksObject *drive_object = NULL;
UDisksDrive *drive = NULL;
/* if we don't have logind, assume it's always the same seat */
if (!LOGIND_AVAILABLE())
return TRUE;
if (UDISKS_IS_LINUX_BLOCK_OBJECT (object))
{
UDisksLinuxBlockObject *linux_block_object;
UDisksBlock *block;
linux_block_object = UDISKS_LINUX_BLOCK_OBJECT (object);
block = udisks_object_get_block (UDISKS_OBJECT (linux_block_object));
if (block != NULL)
{
drive_object = udisks_daemon_find_object (daemon, udisks_block_get_drive (block));
g_object_unref (block);
}
}
else if (UDISKS_IS_LINUX_DRIVE_OBJECT (object))
{
drive_object = g_object_ref (object);
}
if (drive_object == NULL)
goto out;
drive = udisks_object_get_drive (UDISKS_OBJECT (drive_object));
if (drive == NULL)
goto out;
/* It's not unexpected to not find a session, nor a seat associated with @process */
if (sd_pid_get_session (process, &session) == 0)
sd_session_get_seat (session, &seat);
/* If we don't know the seat of the caller, we assume the device is always on another seat */
if (seat == NULL)
goto out;
drive_seat = udisks_drive_get_seat (drive);
if (g_strcmp0 (seat, drive_seat) == 0)
{
ret = TRUE;
goto out;
}
out:
free (seat);
free (session);
g_clear_object (&drive_object);
g_clear_object (&drive);
return ret;
#endif /* HAVE_LIBSYSTEMD_LOGIN */
}
