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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2006,2007,2008,2009,2010,2011,2012,2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config-util.h>
#include <config.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <assert.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <dirent.h>
#include <errno.h>
#include <error.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#include <grub/types.h>
#include <grub/util/misc.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/emu/misc.h>
#include <grub/emu/hostdisk.h>
#include <grub/emu/getroot.h>
#include <sys/wait.h>
# include <sys/ioctl.h>
# include <sys/disklabel.h> /* struct disklabel */
# include <sys/disk.h> /* struct dkwedge_info */
# ifdef HAVE_GETRAWPARTITION
# include <util.h> /* getrawpartition */
# endif /* HAVE_GETRAWPARTITION */
#if defined(__NetBSD__)
# include <sys/fdio.h>
#endif
#if defined(__OpenBSD__)
# include <sys/dkio.h>
#endif
char *
grub_util_part_to_disk (const char *os_dev, struct stat *st,
int *is_part)
{
int rawpart = -1;
if (! S_ISCHR (st->st_mode))
{
*is_part = 0;
return xstrdup (os_dev);
}
# ifdef HAVE_GETRAWPARTITION
rawpart = getrawpartition();
# endif /* HAVE_GETRAWPARTITION */
if (rawpart < 0)
return xstrdup (os_dev);
#if defined(__NetBSD__)
/* NetBSD disk wedges are of the form "/dev/rdk.*". */
if (strncmp ("/dev/rdk", os_dev, sizeof("/dev/rdk") - 1) == 0)
{
struct dkwedge_info dkw;
int fd;
fd = open (os_dev, O_RDONLY);
if (fd == -1)
{
grub_error (GRUB_ERR_BAD_DEVICE,
N_("cannot open `%s': %s"), os_dev,
strerror (errno));
return xstrdup (os_dev);
}
if (ioctl (fd, DIOCGWEDGEINFO, &dkw) == -1)
{
grub_error (GRUB_ERR_BAD_DEVICE,
"cannot get disk wedge info of `%s'", os_dev);
close (fd);
return xstrdup (os_dev);
}
*is_part = (dkw.dkw_offset != 0);
close (fd);
return xasprintf ("/dev/r%s%c", dkw.dkw_parent, 'a' + rawpart);
}
#endif
/* NetBSD (disk label) partitions are of the form "/dev/r[a-z]+[0-9][a-z]". */
if (strncmp ("/dev/r", os_dev, sizeof("/dev/r") - 1) == 0 &&
(os_dev[sizeof("/dev/r") - 1] >= 'a' && os_dev[sizeof("/dev/r") - 1] <= 'z') &&
strncmp ("fd", os_dev + sizeof("/dev/r") - 1, sizeof("fd") - 1) != 0) /* not a floppy device name */
{
char *path = xstrdup (os_dev);
char *p;
for (p = path + sizeof("/dev/r"); *p >= 'a' && *p <= 'z'; p++);
if (grub_isdigit(*p))
{
p++;
if ((*p >= 'a' && *p <= 'z') && (*(p+1) == '\0'))
{
if (*p != 'a' + rawpart)
*is_part = 1;
/* path matches the required regular expression and
p points to its last character. */
*p = 'a' + rawpart;
}
}
return path;
}
return xstrdup (os_dev);
}
enum grub_dev_abstraction_types
grub_util_get_dev_abstraction_os (const char *os_dev __attribute__((unused)))
{
return GRUB_DEV_ABSTRACTION_NONE;
}
int
grub_util_pull_device_os (const char *os_dev __attribute__ ((unused)),
enum grub_dev_abstraction_types ab __attribute__ ((unused)))
{
return 0;
}
char *
grub_util_get_grub_dev_os (const char *os_dev __attribute__ ((unused)))
{
return NULL;
}
grub_disk_addr_t
grub_util_find_partition_start_os (const char *dev)
{
int fd;
# if defined(__NetBSD__)
struct dkwedge_info dkw;
# endif /* defined(__NetBSD__) */
struct disklabel label;
int p_index;
fd = grub_util_fd_open (dev, O_RDONLY);
if (fd == -1)
{
grub_error (GRUB_ERR_BAD_DEVICE, N_("cannot open `%s': %s"),
dev, strerror (errno));
return 0;
}
# if defined(__NetBSD__)
/* First handle the case of disk wedges. */
if (ioctl (fd, DIOCGWEDGEINFO, &dkw) == 0)
{
close (fd);
return (grub_disk_addr_t) dkw.dkw_offset;
}
# endif /* defined(__NetBSD__) */
if (ioctl (fd, DIOCGDINFO, &label) == -1)
{
grub_error (GRUB_ERR_BAD_DEVICE,
"cannot get disk label of `%s'", dev);
close (fd);
return 0;
}
close (fd);
if (dev[0])
p_index = dev[strlen(dev) - 1] - 'a';
else
p_index = -1;
if (p_index >= label.d_npartitions || p_index < 0)
{
grub_error (GRUB_ERR_BAD_DEVICE,
"no disk label entry for `%s'", dev);
return 0;
}
return (grub_disk_addr_t) label.d_partitions[p_index].p_offset;
}
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