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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Alexander Larsson <alexl@redhat.com>
* David Zeuthen <davidz@redhat.com>
*/
#include "config.h"
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include <glib.h>
#include "gunixvolume.h"
#include "gunixmount.h"
#include "gunixmounts.h"
#include "gthemedicon.h"
#include "gvolume.h"
#include "gvolumemonitor.h"
#include "gtask.h"
#include "gioerror.h"
#include "glibintl.h"
/* for BUFSIZ */
#include <stdio.h>
struct _GUnixVolume {
GObject parent;
GVolumeMonitor *volume_monitor;
GUnixMount *mount; /* owned by volume monitor */
char *device_path;
char *mount_path;
gboolean can_eject;
char *identifier;
char *identifier_type;
char *name;
GIcon *icon;
GIcon *symbolic_icon;
};
static void g_unix_volume_volume_iface_init (GVolumeIface *iface);
#define g_unix_volume_get_type _g_unix_volume_get_type
G_DEFINE_TYPE_WITH_CODE (GUnixVolume, g_unix_volume, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_VOLUME,
g_unix_volume_volume_iface_init))
static void
g_unix_volume_finalize (GObject *object)
{
GUnixVolume *volume;
volume = G_UNIX_VOLUME (object);
if (volume->volume_monitor != NULL)
g_object_unref (volume->volume_monitor);
if (volume->mount)
_g_unix_mount_unset_volume (volume->mount, volume);
g_object_unref (volume->icon);
g_object_unref (volume->symbolic_icon);
g_free (volume->name);
g_free (volume->mount_path);
g_free (volume->device_path);
g_free (volume->identifier);
g_free (volume->identifier_type);
G_OBJECT_CLASS (g_unix_volume_parent_class)->finalize (object);
}
static void
g_unix_volume_class_init (GUnixVolumeClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = g_unix_volume_finalize;
}
static void
g_unix_volume_init (GUnixVolume *unix_volume)
{
}
GUnixVolume *
_g_unix_volume_new (GVolumeMonitor *volume_monitor,
GUnixMountPoint *mountpoint)
{
GUnixVolume *volume;
if (!(g_unix_mount_point_is_user_mountable (mountpoint) ||
g_str_has_prefix (g_unix_mount_point_get_device_path (mountpoint), "/vol/")) ||
g_unix_mount_point_is_loopback (mountpoint))
return NULL;
volume = g_object_new (G_TYPE_UNIX_VOLUME, NULL);
volume->volume_monitor = volume_monitor != NULL ? g_object_ref (volume_monitor) : NULL;
volume->mount_path = g_strdup (g_unix_mount_point_get_mount_path (mountpoint));
volume->device_path = g_strdup (g_unix_mount_point_get_device_path (mountpoint));
volume->can_eject = g_unix_mount_point_guess_can_eject (mountpoint);
volume->name = g_unix_mount_point_guess_name (mountpoint);
volume->icon = g_unix_mount_point_guess_icon (mountpoint);
volume->symbolic_icon = g_unix_mount_point_guess_symbolic_icon (mountpoint);
if (strcmp (g_unix_mount_point_get_fs_type (mountpoint), "nfs") == 0)
{
volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_NFS_MOUNT);
volume->identifier = g_strdup (volume->device_path);
}
else if (g_str_has_prefix (volume->device_path, "LABEL="))
{
volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_LABEL);
volume->identifier = g_strdup (volume->device_path + 6);
}
else if (g_str_has_prefix (volume->device_path, "UUID="))
{
volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_UUID);
volume->identifier = g_strdup (volume->device_path + 5);
}
else if (g_path_is_absolute (volume->device_path))
{
volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_UNIX_DEVICE);
volume->identifier = g_strdup (volume->device_path);
}
return volume;
}
void
_g_unix_volume_disconnected (GUnixVolume *volume)
{
if (volume->mount)
{
_g_unix_mount_unset_volume (volume->mount, volume);
volume->mount = NULL;
}
}
void
_g_unix_volume_set_mount (GUnixVolume *volume,
GUnixMount *mount)
{
if (volume->mount == mount)
return;
if (volume->mount)
_g_unix_mount_unset_volume (volume->mount, volume);
volume->mount = mount;
/* TODO: Emit changed in idle to avoid locking issues */
g_signal_emit_by_name (volume, "changed");
if (volume->volume_monitor != NULL)
g_signal_emit_by_name (volume->volume_monitor, "volume-changed", volume);
}
void
_g_unix_volume_unset_mount (GUnixVolume *volume,
GUnixMount *mount)
{
if (volume->mount == mount)
{
volume->mount = NULL;
/* TODO: Emit changed in idle to avoid locking issues */
g_signal_emit_by_name (volume, "changed");
if (volume->volume_monitor != NULL)
g_signal_emit_by_name (volume->volume_monitor, "volume-changed", volume);
}
}
static GIcon *
g_unix_volume_get_icon (GVolume *volume)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
return g_object_ref (unix_volume->icon);
}
static GIcon *
g_unix_volume_get_symbolic_icon (GVolume *volume)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
return g_object_ref (unix_volume->symbolic_icon);
}
static char *
g_unix_volume_get_name (GVolume *volume)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
return g_strdup (unix_volume->name);
}
static char *
g_unix_volume_get_uuid (GVolume *volume)
{
return NULL;
}
static gboolean
g_unix_volume_can_mount (GVolume *volume)
{
return TRUE;
}
static gboolean
g_unix_volume_can_eject (GVolume *volume)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
return unix_volume->can_eject;
}
static gboolean
g_unix_volume_should_automount (GVolume *volume)
{
/* We automount all local volumes because we don't even
* make the internal stuff visible
*/
return TRUE;
}
static GDrive *
g_unix_volume_get_drive (GVolume *volume)
{
return NULL;
}
static GMount *
g_unix_volume_get_mount (GVolume *volume)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
if (unix_volume->mount != NULL)
return g_object_ref (G_MOUNT (unix_volume->mount));
return NULL;
}
gboolean
_g_unix_volume_has_mount_path (GUnixVolume *volume,
const char *mount_path)
{
return strcmp (volume->mount_path, mount_path) == 0;
}
static void
eject_mount_done (GObject *source,
GAsyncResult *result,
gpointer user_data)
{
GSubprocess *subprocess = G_SUBPROCESS (source);
GTask *task = user_data;
GError *error = NULL;
gchar *stderr_str;
GUnixVolume *unix_volume;
if (!g_subprocess_communicate_utf8_finish (subprocess, result, NULL, &stderr_str, &error))
{
g_task_return_error (task, error);
g_error_free (error);
}
else /* successful communication */
{
if (!g_subprocess_get_successful (subprocess))
/* ...but bad exit code */
g_task_return_new_error_literal (task, G_IO_ERROR, G_IO_ERROR_FAILED, stderr_str);
else
{
/* ...and successful exit code */
unix_volume = G_UNIX_VOLUME (g_task_get_source_object (task));
_g_unix_volume_monitor_update (G_UNIX_VOLUME_MONITOR (unix_volume->volume_monitor));
g_task_return_boolean (task, TRUE);
}
g_free (stderr_str);
}
g_object_unref (task);
}
static void
eject_mount_do (GVolume *volume,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data,
const gchar * const *argv,
const gchar *task_name)
{
GSubprocess *subprocess;
GError *error = NULL;
GTask *task;
task = g_task_new (volume, cancellable, callback, user_data);
g_task_set_source_tag (task, eject_mount_do);
g_task_set_name (task, task_name);
if (g_task_return_error_if_cancelled (task))
{
g_object_unref (task);
return;
}
subprocess = g_subprocess_newv (argv, G_SUBPROCESS_FLAGS_STDOUT_SILENCE | G_SUBPROCESS_FLAGS_STDERR_PIPE, &error);
g_assert_no_error (error);
g_subprocess_communicate_utf8_async (subprocess, NULL,
g_task_get_cancellable (task),
eject_mount_done, task);
}
static void
g_unix_volume_mount (GVolume *volume,
GMountMountFlags flags,
GMountOperation *mount_operation,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
const gchar *argv[] = { "mount", NULL, NULL };
if (unix_volume->mount_path != NULL)
argv[1] = unix_volume->mount_path;
else
argv[1] = unix_volume->device_path;
eject_mount_do (volume, cancellable, callback, user_data, argv, "[gio] mount volume");
}
static gboolean
g_unix_volume_mount_finish (GVolume *volume,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (g_task_is_valid (result, volume), FALSE);
return g_task_propagate_boolean (G_TASK (result), error);
}
static void
g_unix_volume_eject (GVolume *volume,
GMountUnmountFlags flags,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
const gchar *argv[] = { "eject", NULL, NULL };
argv[1] = unix_volume->device_path;
eject_mount_do (volume, cancellable, callback, user_data, argv, "[gio] eject volume");
}
static gboolean
g_unix_volume_eject_finish (GVolume *volume,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (g_task_is_valid (result, volume), FALSE);
return g_task_propagate_boolean (G_TASK (result), error);
}
static gchar *
g_unix_volume_get_identifier (GVolume *volume,
const gchar *kind)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
if (unix_volume->identifier_type != NULL &&
strcmp (kind, unix_volume->identifier_type) == 0)
return g_strdup (unix_volume->identifier);
return NULL;
}
static gchar **
g_unix_volume_enumerate_identifiers (GVolume *volume)
{
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
gchar **res;
if (unix_volume->identifier_type)
{
res = g_new (gchar *, 2);
res[0] = g_strdup (unix_volume->identifier_type);
res[1] = NULL;
}
else
{
res = g_new (gchar *, 1);
res[0] = NULL;
}
return res;
}
static void
g_unix_volume_volume_iface_init (GVolumeIface *iface)
{
iface->get_name = g_unix_volume_get_name;
iface->get_icon = g_unix_volume_get_icon;
iface->get_symbolic_icon = g_unix_volume_get_symbolic_icon;
iface->get_uuid = g_unix_volume_get_uuid;
iface->get_drive = g_unix_volume_get_drive;
iface->get_mount = g_unix_volume_get_mount;
iface->can_mount = g_unix_volume_can_mount;
iface->can_eject = g_unix_volume_can_eject;
iface->should_automount = g_unix_volume_should_automount;
iface->mount_fn = g_unix_volume_mount;
iface->mount_finish = g_unix_volume_mount_finish;
iface->eject = g_unix_volume_eject;
iface->eject_finish = g_unix_volume_eject_finish;
iface->get_identifier = g_unix_volume_get_identifier;
iface->enumerate_identifiers = g_unix_volume_enumerate_identifiers;
}