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/*
affs.c -- parted support for affs file systems
Copyright (C) 1998-2000, 2007, 2009-2014, 2019-2023 Free Software
Foundation, Inc.
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <parted/parted.h>
#include <parted/debug.h>
#include <parted/endian.h>
#include "amiga.h"
#include "affs.h"
#if ENABLE_NLS
# include <libintl.h>
# define _(String) dgettext (PACKAGE, String)
#else
# define _(String) (String)
#endif /* ENABLE_NLS */
static int
_affs_probe_root (uint32_t *block, int blocksize) {
int i;
uint32_t sum;
if (PED_BE32_TO_CPU (block[0]) != 2) return 0;
if (PED_BE32_TO_CPU (block[128*blocksize-1]) != 1) return 0;
for (i = 0, sum = 0; i < 128*blocksize; i++)
sum += PED_BE32_TO_CPU (block[i]);
if (sum) return 0;
return 1;
}
static PedGeometry*
_generic_affs_probe (PedGeometry* geom, uint32_t kind)
{
uint32_t *block;
PedSector root, len, pos;
struct PartitionBlock * part;
int blocksize = 1, reserved = 2;
PED_ASSERT (geom != NULL);
PED_ASSERT (geom->dev != NULL);
if (geom->dev->sector_size != 512)
return NULL;
/* Finds the blocksize and reserved values of the partition block */
if (!(part = ped_malloc (PED_SECTOR_SIZE_DEFAULT*blocksize))) {
ped_exception_throw(PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("%s : Failed to allocate partition block\n"), __func__);
goto error_part;
}
if (amiga_find_part(geom, part) != NULL) {
reserved = PED_BE32_TO_CPU (part->de_Reserved);
reserved = reserved == 0 ? 1 : reserved;
blocksize = PED_BE32_TO_CPU (part->de_SizeBlock)
* PED_BE32_TO_CPU (part->de_SectorPerBlock) / 128;
}
free (part);
/* Test boot block */
if (!(block = ped_malloc (PED_SECTOR_SIZE_DEFAULT*blocksize))) {
ped_exception_throw(PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("%s : Failed to allocate block\n"), __func__);
goto error_block;
}
if (!ped_device_read (geom->dev, block, geom->start, blocksize)) {
ped_exception_throw(PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("%s : Couldn't read boot block %llu\n"), __func__, geom->start);
goto error;
}
if (PED_BE32_TO_CPU (block[0]) != kind) {
goto error;
}
/* Find and test the root block */
len = geom->length / blocksize - reserved;
pos = (len - 1) / 2;
root = geom->start + (pos + reserved) * blocksize;
if (!ped_device_read (geom->dev, block, root, blocksize)) {
ped_exception_throw(PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("%s : Couldn't read root block %llu\n"), __func__, root);
goto error;
}
if (_affs_probe_root(block, blocksize) == 1) {
free (block);
return ped_geometry_duplicate (geom);
}
error:
free (block);
error_block:
error_part:
return NULL;
}
static PedGeometry*
_affs0_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5300);
}
static PedGeometry*
_affs1_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5301);
}
static PedGeometry*
_affs2_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5302);
}
static PedGeometry*
_affs3_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5303);
}
static PedGeometry*
_affs4_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5304);
}
static PedGeometry*
_affs5_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5305);
}
static PedGeometry*
_affs6_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5306);
}
static PedGeometry*
_affs7_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x444f5307);
}
static PedGeometry*
_amufs_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754653);
}
static PedGeometry*
_amufs0_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754600);
}
static PedGeometry*
_amufs1_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754601);
}
static PedGeometry*
_amufs2_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754602);
}
static PedGeometry*
_amufs3_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754603);
}
static PedGeometry*
_amufs4_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754604);
}
static PedGeometry*
_amufs5_probe (PedGeometry* geom) {
return _generic_affs_probe (geom, 0x6d754605);
}
static PedFileSystemOps _affs0_ops = {
probe: _affs0_probe,
};
static PedFileSystemOps _affs1_ops = {
probe: _affs1_probe,
};
static PedFileSystemOps _affs2_ops = {
probe: _affs2_probe,
};
static PedFileSystemOps _affs3_ops = {
probe: _affs3_probe,
};
static PedFileSystemOps _affs4_ops = {
probe: _affs4_probe,
};
static PedFileSystemOps _affs5_ops = {
probe: _affs5_probe,
};
static PedFileSystemOps _affs6_ops = {
probe: _affs6_probe,
};
static PedFileSystemOps _affs7_ops = {
probe: _affs7_probe,
};
static PedFileSystemOps _amufs_ops = {
probe: _amufs_probe,
};
static PedFileSystemOps _amufs0_ops = {
probe: _amufs0_probe,
};
static PedFileSystemOps _amufs1_ops = {
probe: _amufs1_probe,
};
static PedFileSystemOps _amufs2_ops = {
probe: _amufs2_probe,
};
static PedFileSystemOps _amufs3_ops = {
probe: _amufs3_probe,
};
static PedFileSystemOps _amufs4_ops = {
probe: _amufs4_probe,
};
static PedFileSystemOps _amufs5_ops = {
probe: _amufs5_probe,
};
PedFileSystemType _affs0_type = {
next: NULL,
ops: &_affs0_ops,
name: "affs0",
};
PedFileSystemType _affs1_type = {
next: NULL,
ops: &_affs1_ops,
name: "affs1",
};
PedFileSystemType _affs2_type = {
next: NULL,
ops: &_affs2_ops,
name: "affs2",
};
PedFileSystemType _affs3_type = {
next: NULL,
ops: &_affs3_ops,
name: "affs3",
};
PedFileSystemType _affs4_type = {
next: NULL,
ops: &_affs4_ops,
name: "affs4",
};
PedFileSystemType _affs5_type = {
next: NULL,
ops: &_affs5_ops,
name: "affs5",
};
PedFileSystemType _affs6_type = {
next: NULL,
ops: &_affs6_ops,
name: "affs6",
};
PedFileSystemType _affs7_type = {
next: NULL,
ops: &_affs7_ops,
name: "affs7",
};
PedFileSystemType _amufs_type = {
next: NULL,
ops: &_amufs_ops,
name: "amufs",
};
PedFileSystemType _amufs0_type = {
next: NULL,
ops: &_amufs0_ops,
name: "amufs0",
};
PedFileSystemType _amufs1_type = {
next: NULL,
ops: &_amufs1_ops,
name: "amufs1",
};
PedFileSystemType _amufs2_type = {
next: NULL,
ops: &_amufs2_ops,
name: "amufs2",
};
PedFileSystemType _amufs3_type = {
next: NULL,
ops: &_amufs3_ops,
name: "amufs3",
};
PedFileSystemType _amufs4_type = {
next: NULL,
ops: &_amufs4_ops,
name: "amufs4",
};
PedFileSystemType _amufs5_type = {
next: NULL,
ops: &_amufs5_ops,
name: "amufs5",
};
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