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https://gitlab.com/sortix/sortix.git
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86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2015.
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This file is part of Sortix libmount.
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Sortix libmount is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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Sortix libmount is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with Sortix libmount. If not, see <http://www.gnu.org/licenses/>.
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extended.c
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MBR extended partition.
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*******************************************************************************/
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#include <stdbool.h>
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#include <stddef.h>
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#include <string.h>
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#include <mount/blockdevice.h>
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#include <mount/extended.h>
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#include <mount/filesystem.h>
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#include <mount/partition.h>
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#include <mount/uuid.h>
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#include "util.h"
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static size_t extended_probe_amount(struct blockdevice* bdev)
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{
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(void) bdev;
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return 0;
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}
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static bool extended_probe(struct blockdevice* bdev,
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const unsigned char* leading,
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size_t amount)
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{
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(void) leading;
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(void) amount;
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struct partition* p = bdev->p;
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if ( !p )
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return false;
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return p->table_type == PARTITION_TABLE_TYPE_MBR &&
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(p->mbr_system_id == 0x05 ||
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p->mbr_system_id == 0x0F);
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}
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static void extended_release(struct filesystem* fs)
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{
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if ( !fs )
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return;
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free(fs);
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}
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static enum filesystem_error extended_inspect(struct filesystem** fs_ptr,
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struct blockdevice* bdev)
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{
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*fs_ptr = NULL;
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struct filesystem* fs = CALLOC_TYPE(struct filesystem);
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if ( !fs )
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return FILESYSTEM_ERROR_ERRNO;
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fs->bdev = bdev;
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fs->handler = &extended_handler;
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fs->handler_private = NULL;
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fs->fstype_name = "extended";
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return *fs_ptr = fs, FILESYSTEM_ERROR_NONE;
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}
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const struct filesystem_handler extended_handler =
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{
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.handler_name = "extended",
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.probe_amount = extended_probe_amount,
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.probe = extended_probe,
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.inspect = extended_inspect,
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.release = extended_release,
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};
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