108538d8ff
* grub-core/kern/emu/getroot.c [__MINGW32__] (find_root_device): Rename to ... [__MINGW32__] (grub_find_device): ... this. [! __MINGW32__ && ! __CYGWIN__] (find_root_device): Rename to ... [! __MINGW32__ && ! __CYGWIN__] (grub_find_device): ... this. Use a reasonable default if dir is NULL. [! __MINGW32__ && __CYGWIN__] (find_cygwin_root_device): Rename to ... [! __MINGW32__ && __CYGWIN__] (grub_find_device): ... this. (grub_guess_root_device): Update callers. * include/grub/emu/getroot.h (grub_find_device): Add prototype. * util/raid.c (grub_util_getdiskname): Remove. (grub_util_raid_getmembers): Use grub_find_device rather than grub_util_getdiskname.
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/* raid.c - RAID support for GRUB utils. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2008 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* We only support RAID on Linux. */
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#ifdef __linux__
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#include <grub/emu/misc.h>
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#include <grub/util/misc.h>
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#include <grub/util/raid.h>
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#include <grub/emu/getroot.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <linux/types.h>
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#include <linux/major.h>
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#include <linux/raid/md_p.h>
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#include <linux/raid/md_u.h>
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char **
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grub_util_raid_getmembers (char *name)
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{
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int fd, ret, i, j;
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char *devname;
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char **devicelist;
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mdu_version_t version;
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mdu_array_info_t info;
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mdu_disk_info_t disk;
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devname = xmalloc (strlen (name) + 6);
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strcpy (devname, "/dev/");
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strcpy (devname+5, name);
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fd = open (devname, O_RDONLY);
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if (fd == -1)
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grub_util_error ("can't open %s: %s", devname, strerror (errno));
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free (devname);
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ret = ioctl (fd, RAID_VERSION, &version);
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if (ret != 0)
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grub_util_error ("ioctl RAID_VERSION error: %s", strerror (errno));
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if (version.major != 0 || version.minor != 90)
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grub_util_error ("unsupported RAID version: %d.%d",
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version.major, version.minor);
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ret = ioctl (fd, GET_ARRAY_INFO, &info);
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if (ret != 0)
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grub_util_error ("ioctl GET_ARRAY_INFO error: %s", strerror (errno));
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devicelist = xmalloc ((info.nr_disks + 1) * sizeof (char *));
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for (i = 0, j = 0; i <info.nr_disks; i++)
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{
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disk.number = i;
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ret = ioctl (fd, GET_DISK_INFO, &disk);
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if (ret != 0)
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grub_util_error ("ioctl GET_DISK_INFO error: %s", strerror (errno));
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if (disk.state & (1 << MD_DISK_ACTIVE))
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{
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devicelist[j] = grub_find_device (NULL,
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makedev (disk.major, disk.minor));
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j++;
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}
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}
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devicelist[j] = NULL;
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return devicelist;
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}
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#endif /* ! __linux__ */
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