| /* -*- 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) |
| { |
| } |
| |
| 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; |
| } |
| |
| 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 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; |
| GSource *error_channel_source; |
| 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); |
| |
| if (data->error_channel_source) |
| { |
| g_source_destroy (data->error_channel_source); |
| g_source_unref (data->error_channel_source); |
| } |
| 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); |
| |
| if (data->error_channel_source) |
| { |
| g_source_unref (data->error_channel_source); |
| data->error_channel_source = NULL; |
| } |
| 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; |
| GSource *child_watch; |
| 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 = g_io_create_watch (data->error_channel, G_IO_IN); |
| g_source_set_callback (data->error_channel_source, |
| (GSourceFunc) eject_mount_read_error, data, NULL); |
| g_source_attach (data->error_channel_source, g_main_context_get_thread_default ()); |
| |
| child_watch = g_child_watch_source_new (child_pid); |
| g_source_set_callback (child_watch, (GSourceFunc) eject_mount_cb, data, NULL); |
| g_source_attach (child_watch, g_main_context_get_thread_default ()); |
| g_source_unref (child_watch); |
| |
| 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 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_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; |
| } |
