69203a9992
* kern/disk.c (grub_disk_open): Print debug messages when opening a disk. (grub_disk_close): Print debug messages when closing a disk. (grub_disk_read): Print debug messages when disk read fails. * kern/fs.c (grub_fs_probe): Print debug messages when detecting filesystem type. * kern/partition.c: Include misc.h. (grub_partition_iterate): Print debug messages when detecting partition type.
136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2004 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/misc.h>
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#include <grub/partition.h>
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#include <grub/disk.h>
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static grub_partition_map_t grub_partition_map_list;
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void
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grub_partition_map_register (grub_partition_map_t partmap)
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{
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partmap->next = grub_partition_map_list;
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grub_partition_map_list = partmap;
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}
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void
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grub_partition_map_unregister (grub_partition_map_t partmap)
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{
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grub_partition_map_t *p, q;
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for (p = &grub_partition_map_list, q = *p; q; p = &(q->next), q = q->next)
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if (q == partmap)
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{
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*p = q->next;
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break;
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}
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}
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int
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grub_partition_map_iterate (int (*hook) (const grub_partition_map_t partmap))
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{
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grub_partition_map_t p;
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for (p = grub_partition_map_list; p; p = p->next)
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if (hook (p))
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return 1;
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return 0;
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}
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grub_partition_t
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grub_partition_probe (struct grub_disk *disk, const char *str)
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{
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grub_partition_t part = 0;
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auto int part_map_probe (const grub_partition_map_t partmap);
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int part_map_probe (const grub_partition_map_t partmap)
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{
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part = partmap->probe (disk, str);
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if (part)
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return 1;
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if (grub_errno == GRUB_ERR_BAD_PART_TABLE)
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{
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/* Continue to next partition map type. */
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grub_errno = GRUB_ERR_NONE;
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return 0;
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}
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return 1;
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}
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/* Use the first partition map type found. */
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grub_partition_map_iterate (part_map_probe);
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return part;
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}
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int
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grub_partition_iterate (struct grub_disk *disk,
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int (*hook) (grub_disk_t disk,
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const grub_partition_t partition))
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{
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grub_partition_map_t partmap = 0;
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int ret = 0;
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auto int part_map_iterate (const grub_partition_map_t p);
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auto int part_map_iterate_hook (grub_disk_t d,
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const grub_partition_t partition);
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int part_map_iterate_hook (grub_disk_t d __attribute__ ((unused)),
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const grub_partition_t partition __attribute__ ((unused)))
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{
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return 1;
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}
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int part_map_iterate (const grub_partition_map_t p)
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{
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grub_err_t err;
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grub_dprintf ("partition", "Detecting %s...\n", p->name);
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err = p->iterate (disk, part_map_iterate_hook);
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if (err != GRUB_ERR_NONE)
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{
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/* Continue to next partition map type. */
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grub_dprintf ("partition", "%s detection failed.\n", p->name);
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grub_errno = GRUB_ERR_NONE;
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return 0;
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}
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grub_dprintf ("partition", "%s detection succeeded.\n", p->name);
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partmap = p;
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return 1;
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}
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grub_partition_map_iterate (part_map_iterate);
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if (partmap)
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ret = partmap->iterate (disk, hook);
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return ret;
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}
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char *
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grub_partition_get_name (const grub_partition_t partition)
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{
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return partition->partmap->get_name (partition);
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}
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