mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-10 11:26:16 +01:00
b9c69790a8
2008-09-08 Christian Neumair <cneumair@gnome.org> * gunixmount.c (eject_unmount_read_error), (eject_unmount_do): * gunixvolume.c (eject_mount_read_error), (eject_mount_do): Use non-blocking pipe for mount helper I/O. Fixes #550647. svn path=/trunk/; revision=7444
534 lines
14 KiB
C
534 lines
14 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
|
|
|
/* GIO - GLib Input, Output and Streaming Library
|
|
*
|
|
* Copyright (C) 2006-2007 Red Hat, Inc.
|
|
*
|
|
* 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 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, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*
|
|
* 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 "gsimpleasyncresult.h"
|
|
#include "gioerror.h"
|
|
#include "glibintl.h"
|
|
/* for BUFSIZ */
|
|
#include <stdio.h>
|
|
|
|
#include "gioalias.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;
|
|
};
|
|
|
|
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_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)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* g_unix_volume_new:
|
|
* @volume_monitor: a #GVolumeMonitor.
|
|
* @mountpoint: a #GUnixMountPoint.
|
|
*
|
|
* Returns: a #GUnixVolume for the given #GUnixMountPoint.
|
|
**/
|
|
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);
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* g_unix_volume_disconnected:
|
|
* @volume:
|
|
*
|
|
**/
|
|
void
|
|
_g_unix_volume_disconnected (GUnixVolume *volume)
|
|
{
|
|
if (volume->mount)
|
|
{
|
|
_g_unix_mount_unset_volume (volume->mount, volume);
|
|
volume->mount = NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* g_unix_volume_set_mount:
|
|
* @volume:
|
|
* @mount:
|
|
*
|
|
**/
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* g_unix_volume_unset_mount:
|
|
* @volume:
|
|
* @mount:
|
|
*
|
|
**/
|
|
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 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 (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;
|
|
}
|
|
|
|
|
|
typedef struct {
|
|
GUnixVolume *unix_volume;
|
|
GAsyncReadyCallback callback;
|
|
gpointer user_data;
|
|
GCancellable *cancellable;
|
|
int error_fd;
|
|
GIOChannel *error_channel;
|
|
guint error_channel_source_id;
|
|
GString *error_string;
|
|
} EjectMountOp;
|
|
|
|
static void
|
|
eject_mount_cb (GPid pid, gint status, gpointer user_data)
|
|
{
|
|
EjectMountOp *data = user_data;
|
|
GSimpleAsyncResult *simple;
|
|
|
|
if (WEXITSTATUS (status) != 0)
|
|
{
|
|
GError *error;
|
|
error = g_error_new_literal (G_IO_ERROR,
|
|
G_IO_ERROR_FAILED,
|
|
data->error_string->str);
|
|
simple = g_simple_async_result_new_from_error (G_OBJECT (data->unix_volume),
|
|
data->callback,
|
|
data->user_data,
|
|
error);
|
|
g_error_free (error);
|
|
}
|
|
else
|
|
{
|
|
simple = g_simple_async_result_new (G_OBJECT (data->unix_volume),
|
|
data->callback,
|
|
data->user_data,
|
|
NULL);
|
|
}
|
|
|
|
g_simple_async_result_complete (simple);
|
|
g_object_unref (simple);
|
|
|
|
g_source_remove (data->error_channel_source_id);
|
|
g_io_channel_unref (data->error_channel);
|
|
g_string_free (data->error_string, TRUE);
|
|
close (data->error_fd);
|
|
g_spawn_close_pid (pid);
|
|
g_free (data);
|
|
}
|
|
|
|
static gboolean
|
|
eject_mount_read_error (GIOChannel *channel,
|
|
GIOCondition condition,
|
|
gpointer user_data)
|
|
{
|
|
EjectMountOp *data = user_data;
|
|
char buf[BUFSIZ];
|
|
gsize bytes_read;
|
|
GError *error;
|
|
GIOStatus status;
|
|
|
|
error = NULL;
|
|
read:
|
|
status = g_io_channel_read_chars (channel, buf, sizeof (buf), &bytes_read, &error);
|
|
if (status == G_IO_STATUS_NORMAL)
|
|
{
|
|
g_string_append_len (data->error_string, buf, bytes_read);
|
|
if (bytes_read == sizeof (buf))
|
|
goto read;
|
|
}
|
|
else if (status == G_IO_STATUS_EOF)
|
|
g_string_append_len (data->error_string, buf, bytes_read);
|
|
else if (status == G_IO_STATUS_ERROR)
|
|
{
|
|
if (data->error_string->len > 0)
|
|
g_string_append (data->error_string, "\n");
|
|
|
|
g_string_append (data->error_string, error->message);
|
|
g_error_free (error);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
eject_mount_do (GVolume *volume,
|
|
GCancellable *cancellable,
|
|
GAsyncReadyCallback callback,
|
|
gpointer user_data,
|
|
char **argv)
|
|
{
|
|
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
|
|
EjectMountOp *data;
|
|
GPid child_pid;
|
|
GError *error;
|
|
|
|
data = g_new0 (EjectMountOp, 1);
|
|
data->unix_volume = unix_volume;
|
|
data->callback = callback;
|
|
data->user_data = user_data;
|
|
data->cancellable = cancellable;
|
|
|
|
error = NULL;
|
|
if (!g_spawn_async_with_pipes (NULL, /* working dir */
|
|
argv,
|
|
NULL, /* envp */
|
|
G_SPAWN_DO_NOT_REAP_CHILD|G_SPAWN_SEARCH_PATH,
|
|
NULL, /* child_setup */
|
|
NULL, /* user_data for child_setup */
|
|
&child_pid,
|
|
NULL, /* standard_input */
|
|
NULL, /* standard_output */
|
|
&(data->error_fd),
|
|
&error)) {
|
|
g_assert (error != NULL);
|
|
goto handle_error;
|
|
}
|
|
|
|
data->error_string = g_string_new ("");
|
|
|
|
data->error_channel = g_io_channel_unix_new (data->error_fd);
|
|
g_io_channel_set_flags (data->error_channel, G_IO_FLAG_NONBLOCK, &error);
|
|
if (error != NULL)
|
|
goto handle_error;
|
|
|
|
data->error_channel_source_id = g_io_add_watch (data->error_channel, G_IO_IN, eject_mount_read_error, data);
|
|
g_child_watch_add (child_pid, eject_mount_cb, data);
|
|
|
|
handle_error:
|
|
if (error != NULL) {
|
|
GSimpleAsyncResult *simple;
|
|
simple = g_simple_async_result_new_from_error (G_OBJECT (data->unix_volume),
|
|
data->callback,
|
|
data->user_data,
|
|
error);
|
|
g_simple_async_result_complete (simple);
|
|
g_object_unref (simple);
|
|
|
|
if (data->error_string != NULL)
|
|
g_string_free (data->error_string, TRUE);
|
|
|
|
if (data->error_channel != NULL)
|
|
g_io_channel_unref (data->error_channel);
|
|
|
|
g_error_free (error);
|
|
g_free (data);
|
|
}
|
|
}
|
|
|
|
|
|
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);
|
|
char *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);
|
|
}
|
|
|
|
static gboolean
|
|
g_unix_volume_mount_finish (GVolume *volume,
|
|
GAsyncResult *result,
|
|
GError **error)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
g_unix_volume_eject (GVolume *volume,
|
|
GMountUnmountFlags flags,
|
|
GCancellable *cancellable,
|
|
GAsyncReadyCallback callback,
|
|
gpointer user_data)
|
|
{
|
|
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
|
|
char *argv[] = {"eject", NULL, NULL};
|
|
|
|
argv[1] = unix_volume->device_path;
|
|
|
|
eject_mount_do (volume, cancellable, callback, user_data, argv);
|
|
}
|
|
|
|
static gboolean
|
|
g_unix_volume_eject_finish (GVolume *volume,
|
|
GAsyncResult *result,
|
|
GError **error)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static char *
|
|
g_unix_volume_get_identifier (GVolume *volume,
|
|
const char *kind)
|
|
{
|
|
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
|
|
|
|
if (strcmp (kind, unix_volume->identifier_type) == 0)
|
|
return g_strdup (unix_volume->identifier);
|
|
return NULL;
|
|
}
|
|
|
|
static char **
|
|
g_unix_volume_enumerate_identifiers (GVolume *volume)
|
|
{
|
|
GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
|
|
char **res;
|
|
|
|
if (unix_volume->identifier_type)
|
|
{
|
|
res = g_new (char *, 2);
|
|
res[0] = g_strdup (unix_volume->identifier_type);
|
|
res[1] = NULL;
|
|
}
|
|
else
|
|
{
|
|
res = g_new (char *, 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_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;
|
|
}
|