1
/* device.c - device manager */
3
* GRUB -- GRand Unified Bootloader
4
* Copyright (C) 2002,2005 Free Software Foundation, Inc.
6
* GRUB is free software; you can redistribute it and/or modify
7
* it under the terms of the GNU General Public License as published by
8
* the Free Software Foundation; either version 2 of the License, or
9
* (at your option) any later version.
11
* This program is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with GRUB; if not, write to the Free Software
18
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
#include <grub/device.h>
22
#include <grub/disk.h>
26
#include <grub/misc.h>
28
#include <grub/partition.h>
31
grub_device_open (const char *name)
34
grub_device_t dev = 0;
38
name = grub_env_get ("root");
41
grub_error (GRUB_ERR_BAD_DEVICE, "no device is set");
46
dev = grub_malloc (sizeof (*dev));
50
/* Try to open a disk. */
51
disk = grub_disk_open (name);
54
grub_error (GRUB_ERR_BAD_DEVICE, "unknown device");
59
dev->net = 0; /* FIXME */
65
grub_disk_close (disk);
73
grub_device_close (grub_device_t device)
76
grub_disk_close (device->disk);
84
grub_device_iterate (int (*hook) (const char *name))
86
auto int iterate_disk (const char *disk_name);
87
auto int iterate_partition (grub_disk_t disk,
88
const grub_partition_t partition);
90
int iterate_disk (const char *disk_name)
97
dev = grub_device_open (disk_name);
101
if (dev->disk && dev->disk->has_partitions)
102
if (grub_partition_iterate (dev->disk, iterate_partition))
104
grub_device_close (dev);
108
grub_device_close (dev);
112
int iterate_partition (grub_disk_t disk, const grub_partition_t partition)
114
char *partition_name;
118
partition_name = grub_partition_get_name (partition);
119
if (! partition_name)
122
device_name = grub_malloc (grub_strlen (disk->name) + 1
123
+ grub_strlen (partition_name) + 1);
126
grub_free (partition_name);
130
grub_sprintf (device_name, "%s,%s", disk->name, partition_name);
131
grub_free (partition_name);
133
ret = hook (device_name);
134
grub_free (device_name);
138
/* Only disk devices are supported at the moment. */
139
return grub_disk_dev_iterate (iterate_disk);