1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2
3/* GIO - GLib Input, Output and Streaming Library
4 *
5 * Copyright (C) 2006-2007 Red Hat, Inc.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General
18 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 *
20 * Author: Alexander Larsson <alexl@redhat.com>
21 * David Zeuthen <davidz@redhat.com>
22 */
23
24#include "config.h"
25
26#include <string.h>
27#include <sys/wait.h>
28#include <unistd.h>
29
30#include <glib.h>
31#include "gunixvolume.h"
32#include "gunixmount.h"
33#include "gunixmounts.h"
34#include "gthemedicon.h"
35#include "gvolume.h"
36#include "gvolumemonitor.h"
37#include "gtask.h"
38#include "gioerror.h"
39#include "glibintl.h"
40/* for BUFSIZ */
41#include <stdio.h>
42
43
44struct _GUnixVolume {
45 GObject parent;
46
47 GVolumeMonitor *volume_monitor;
48 GUnixMount *mount; /* owned by volume monitor */
49
50 char *device_path;
51 char *mount_path;
52 gboolean can_eject;
53
54 char *identifier;
55 char *identifier_type;
56
57 char *name;
58 GIcon *icon;
59 GIcon *symbolic_icon;
60};
61
62static void g_unix_volume_volume_iface_init (GVolumeIface *iface);
63
64#define g_unix_volume_get_type _g_unix_volume_get_type
65G_DEFINE_TYPE_WITH_CODE (GUnixVolume, g_unix_volume, G_TYPE_OBJECT,
66 G_IMPLEMENT_INTERFACE (G_TYPE_VOLUME,
67 g_unix_volume_volume_iface_init))
68
69static void
70g_unix_volume_finalize (GObject *object)
71{
72 GUnixVolume *volume;
73
74 volume = G_UNIX_VOLUME (object);
75
76 if (volume->volume_monitor != NULL)
77 g_object_unref (object: volume->volume_monitor);
78
79 if (volume->mount)
80 _g_unix_mount_unset_volume (mount: volume->mount, volume);
81
82 g_object_unref (object: volume->icon);
83 g_object_unref (object: volume->symbolic_icon);
84 g_free (mem: volume->name);
85 g_free (mem: volume->mount_path);
86 g_free (mem: volume->device_path);
87 g_free (mem: volume->identifier);
88 g_free (mem: volume->identifier_type);
89
90 G_OBJECT_CLASS (g_unix_volume_parent_class)->finalize (object);
91}
92
93static void
94g_unix_volume_class_init (GUnixVolumeClass *klass)
95{
96 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
97
98 gobject_class->finalize = g_unix_volume_finalize;
99}
100
101static void
102g_unix_volume_init (GUnixVolume *unix_volume)
103{
104}
105
106GUnixVolume *
107_g_unix_volume_new (GVolumeMonitor *volume_monitor,
108 GUnixMountPoint *mountpoint)
109{
110 GUnixVolume *volume;
111
112 if (!(g_unix_mount_point_is_user_mountable (mount_point: mountpoint) ||
113 g_str_has_prefix (str: g_unix_mount_point_get_device_path (mount_point: mountpoint), prefix: "/vol/")) ||
114 g_unix_mount_point_is_loopback (mount_point: mountpoint))
115 return NULL;
116
117 volume = g_object_new (G_TYPE_UNIX_VOLUME, NULL);
118 volume->volume_monitor = volume_monitor != NULL ? g_object_ref (volume_monitor) : NULL;
119 volume->mount_path = g_strdup (str: g_unix_mount_point_get_mount_path (mount_point: mountpoint));
120 volume->device_path = g_strdup (str: g_unix_mount_point_get_device_path (mount_point: mountpoint));
121 volume->can_eject = g_unix_mount_point_guess_can_eject (mount_point: mountpoint);
122
123 volume->name = g_unix_mount_point_guess_name (mount_point: mountpoint);
124 volume->icon = g_unix_mount_point_guess_icon (mount_point: mountpoint);
125 volume->symbolic_icon = g_unix_mount_point_guess_symbolic_icon (mount_point: mountpoint);
126
127
128 if (strcmp (s1: g_unix_mount_point_get_fs_type (mount_point: mountpoint), s2: "nfs") == 0)
129 {
130 volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_NFS_MOUNT);
131 volume->identifier = g_strdup (str: volume->device_path);
132 }
133 else if (g_str_has_prefix (str: volume->device_path, prefix: "LABEL="))
134 {
135 volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_LABEL);
136 volume->identifier = g_strdup (str: volume->device_path + 6);
137 }
138 else if (g_str_has_prefix (str: volume->device_path, prefix: "UUID="))
139 {
140 volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_UUID);
141 volume->identifier = g_strdup (str: volume->device_path + 5);
142 }
143 else if (g_path_is_absolute (file_name: volume->device_path))
144 {
145 volume->identifier_type = g_strdup (G_VOLUME_IDENTIFIER_KIND_UNIX_DEVICE);
146 volume->identifier = g_strdup (str: volume->device_path);
147 }
148
149 return volume;
150}
151
152void
153_g_unix_volume_disconnected (GUnixVolume *volume)
154{
155 if (volume->mount)
156 {
157 _g_unix_mount_unset_volume (mount: volume->mount, volume);
158 volume->mount = NULL;
159 }
160}
161
162void
163_g_unix_volume_set_mount (GUnixVolume *volume,
164 GUnixMount *mount)
165{
166 if (volume->mount == mount)
167 return;
168
169 if (volume->mount)
170 _g_unix_mount_unset_volume (mount: volume->mount, volume);
171
172 volume->mount = mount;
173
174 /* TODO: Emit changed in idle to avoid locking issues */
175 g_signal_emit_by_name (instance: volume, detailed_signal: "changed");
176 if (volume->volume_monitor != NULL)
177 g_signal_emit_by_name (instance: volume->volume_monitor, detailed_signal: "volume-changed", volume);
178}
179
180void
181_g_unix_volume_unset_mount (GUnixVolume *volume,
182 GUnixMount *mount)
183{
184 if (volume->mount == mount)
185 {
186 volume->mount = NULL;
187 /* TODO: Emit changed in idle to avoid locking issues */
188 g_signal_emit_by_name (instance: volume, detailed_signal: "changed");
189 if (volume->volume_monitor != NULL)
190 g_signal_emit_by_name (instance: volume->volume_monitor, detailed_signal: "volume-changed", volume);
191 }
192}
193
194static GIcon *
195g_unix_volume_get_icon (GVolume *volume)
196{
197 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
198 return g_object_ref (unix_volume->icon);
199}
200
201static GIcon *
202g_unix_volume_get_symbolic_icon (GVolume *volume)
203{
204 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
205 return g_object_ref (unix_volume->symbolic_icon);
206}
207
208static char *
209g_unix_volume_get_name (GVolume *volume)
210{
211 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
212 return g_strdup (str: unix_volume->name);
213}
214
215static char *
216g_unix_volume_get_uuid (GVolume *volume)
217{
218 return NULL;
219}
220
221static gboolean
222g_unix_volume_can_mount (GVolume *volume)
223{
224 return TRUE;
225}
226
227static gboolean
228g_unix_volume_can_eject (GVolume *volume)
229{
230 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
231 return unix_volume->can_eject;
232}
233
234static gboolean
235g_unix_volume_should_automount (GVolume *volume)
236{
237 /* We automount all local volumes because we don't even
238 * make the internal stuff visible
239 */
240 return TRUE;
241}
242
243static GDrive *
244g_unix_volume_get_drive (GVolume *volume)
245{
246 return NULL;
247}
248
249static GMount *
250g_unix_volume_get_mount (GVolume *volume)
251{
252 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
253
254 if (unix_volume->mount != NULL)
255 return g_object_ref (G_MOUNT (unix_volume->mount));
256
257 return NULL;
258}
259
260
261gboolean
262_g_unix_volume_has_mount_path (GUnixVolume *volume,
263 const char *mount_path)
264{
265 return strcmp (s1: volume->mount_path, s2: mount_path) == 0;
266}
267
268static void
269eject_mount_done (GObject *source,
270 GAsyncResult *result,
271 gpointer user_data)
272{
273 GSubprocess *subprocess = G_SUBPROCESS (source);
274 GTask *task = user_data;
275 GError *error = NULL;
276 gchar *stderr_str;
277 GUnixVolume *unix_volume;
278
279 if (!g_subprocess_communicate_utf8_finish (subprocess, result, NULL, stderr_buf: &stderr_str, error: &error))
280 {
281 g_task_return_error (task, error);
282 g_error_free (error);
283 }
284 else /* successful communication */
285 {
286 if (!g_subprocess_get_successful (subprocess))
287 /* ...but bad exit code */
288 g_task_return_new_error (task, G_IO_ERROR, code: G_IO_ERROR_FAILED, format: "%s", stderr_str);
289 else
290 {
291 /* ...and successful exit code */
292 unix_volume = G_UNIX_VOLUME (g_task_get_source_object (task));
293 _g_unix_volume_monitor_update (G_UNIX_VOLUME_MONITOR (unix_volume->volume_monitor));
294 g_task_return_boolean (task, TRUE);
295 }
296
297 g_free (mem: stderr_str);
298 }
299
300 g_object_unref (object: task);
301}
302
303static void
304eject_mount_do (GVolume *volume,
305 GCancellable *cancellable,
306 GAsyncReadyCallback callback,
307 gpointer user_data,
308 const gchar * const *argv,
309 const gchar *task_name)
310{
311 GSubprocess *subprocess;
312 GError *error = NULL;
313 GTask *task;
314
315 task = g_task_new (source_object: volume, cancellable, callback, callback_data: user_data);
316 g_task_set_source_tag (task, eject_mount_do);
317 g_task_set_name (task, name: task_name);
318
319 if (g_task_return_error_if_cancelled (task))
320 {
321 g_object_unref (object: task);
322 return;
323 }
324
325 subprocess = g_subprocess_newv (argv, flags: G_SUBPROCESS_FLAGS_STDOUT_SILENCE | G_SUBPROCESS_FLAGS_STDERR_PIPE, error: &error);
326 g_assert_no_error (error);
327
328 g_subprocess_communicate_utf8_async (subprocess, NULL,
329 cancellable: g_task_get_cancellable (task),
330 callback: eject_mount_done, user_data: task);
331}
332
333static void
334g_unix_volume_mount (GVolume *volume,
335 GMountMountFlags flags,
336 GMountOperation *mount_operation,
337 GCancellable *cancellable,
338 GAsyncReadyCallback callback,
339 gpointer user_data)
340{
341 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
342 const gchar *argv[] = { "mount", NULL, NULL };
343
344 if (unix_volume->mount_path != NULL)
345 argv[1] = unix_volume->mount_path;
346 else
347 argv[1] = unix_volume->device_path;
348
349 eject_mount_do (volume, cancellable, callback, user_data, argv, task_name: "[gio] mount volume");
350}
351
352static gboolean
353g_unix_volume_mount_finish (GVolume *volume,
354 GAsyncResult *result,
355 GError **error)
356{
357 g_return_val_if_fail (g_task_is_valid (result, volume), FALSE);
358
359 return g_task_propagate_boolean (G_TASK (result), error);
360}
361
362static void
363g_unix_volume_eject (GVolume *volume,
364 GMountUnmountFlags flags,
365 GCancellable *cancellable,
366 GAsyncReadyCallback callback,
367 gpointer user_data)
368{
369 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
370 const gchar *argv[] = { "eject", NULL, NULL };
371
372 argv[1] = unix_volume->device_path;
373
374 eject_mount_do (volume, cancellable, callback, user_data, argv, task_name: "[gio] eject volume");
375}
376
377static gboolean
378g_unix_volume_eject_finish (GVolume *volume,
379 GAsyncResult *result,
380 GError **error)
381{
382 g_return_val_if_fail (g_task_is_valid (result, volume), FALSE);
383
384 return g_task_propagate_boolean (G_TASK (result), error);
385}
386
387static gchar *
388g_unix_volume_get_identifier (GVolume *volume,
389 const gchar *kind)
390{
391 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
392
393 if (unix_volume->identifier_type != NULL &&
394 strcmp (s1: kind, s2: unix_volume->identifier_type) == 0)
395 return g_strdup (str: unix_volume->identifier);
396
397 return NULL;
398}
399
400static gchar **
401g_unix_volume_enumerate_identifiers (GVolume *volume)
402{
403 GUnixVolume *unix_volume = G_UNIX_VOLUME (volume);
404 gchar **res;
405
406 if (unix_volume->identifier_type)
407 {
408 res = g_new (gchar *, 2);
409 res[0] = g_strdup (str: unix_volume->identifier_type);
410 res[1] = NULL;
411 }
412 else
413 {
414 res = g_new (gchar *, 1);
415 res[0] = NULL;
416 }
417
418 return res;
419}
420
421static void
422g_unix_volume_volume_iface_init (GVolumeIface *iface)
423{
424 iface->get_name = g_unix_volume_get_name;
425 iface->get_icon = g_unix_volume_get_icon;
426 iface->get_symbolic_icon = g_unix_volume_get_symbolic_icon;
427 iface->get_uuid = g_unix_volume_get_uuid;
428 iface->get_drive = g_unix_volume_get_drive;
429 iface->get_mount = g_unix_volume_get_mount;
430 iface->can_mount = g_unix_volume_can_mount;
431 iface->can_eject = g_unix_volume_can_eject;
432 iface->should_automount = g_unix_volume_should_automount;
433 iface->mount_fn = g_unix_volume_mount;
434 iface->mount_finish = g_unix_volume_mount_finish;
435 iface->eject = g_unix_volume_eject;
436 iface->eject_finish = g_unix_volume_eject_finish;
437 iface->get_identifier = g_unix_volume_get_identifier;
438 iface->enumerate_identifiers = g_unix_volume_enumerate_identifiers;
439}
440

source code of gtk/subprojects/glib/gio/gunixvolume.c