pmt: initial 3.0.2 update

jni/parted/libparted/fs/amiga/asfs.c

@@ -0,0 +1,130 @@
+/*
+    asfs.c -- parted asfs filesystem support
+    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 "asfs.h"
+
+#if ENABLE_NLS
+#  include <libintl.h>
+#  define _(String) dgettext (PACKAGE, String)
+#else
+#  define _(String) (String)
+#endif /* ENABLE_NLS */
+
+static int
+_asfs_probe_root (PedGeometry *geom, uint32_t *block, int blocksize, PedSector root) {
+	int i, sum;
+	PedSector start, end;
+
+	if (PED_BE32_TO_CPU (block[0]) != 0x53465300) return 0;
+	for (i = 0, sum = 1; i < 128*blocksize; i++) sum += PED_BE32_TO_CPU (block[i]);
+	if (sum != 0) return 0;
+	if (PED_BE32_TO_CPU (block[2]) * blocksize + geom->start != root) {
+		return 0;
+	}
+	start = ((((PedSector) PED_BE32_TO_CPU (block[8])) << 32)
+		+ (PedSector) PED_BE32_TO_CPU (block[9])) / 512;
+	end = (((((PedSector) PED_BE32_TO_CPU (block[10])) << 32)
+		+ (PedSector) PED_BE32_TO_CPU (block[11])) / 512) - 1;
+	if (start != geom->start || end != geom->end) return 0;
+	return 1;
+}
+
+static PedGeometry*
+_asfs_probe (PedGeometry* geom)
+{
+	uint32_t *block;
+	struct PartitionBlock * part;
+	int blocksize = 1;
+        PedSector root;
+        int found = 0;
+
+	PED_ASSERT (geom != NULL);
+	PED_ASSERT (geom->dev != NULL);
+	if (geom->dev->sector_size != 512)
+		return NULL;
+
+	/* Finds the blocksize 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) {
+		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;
+	}
+	root = geom->start;
+	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 (PED_BE32_TO_CPU (block[0]) != 0x53465300) {
+		goto error;
+	}
+
+	/* Find and test the root blocks */
+	if (_asfs_probe_root(geom, block, blocksize, root)) {
+		found++;
+	}
+	root = geom->end - blocksize - (geom->length % blocksize) + 1;
+	if (!ped_device_read (geom->dev, block, root, 1)) {
+		ped_exception_throw(PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
+			_("%s : Couldn't read root block %llu\n"), __func__, root);
+		goto error;
+	}
+	if (_asfs_probe_root(geom, block, blocksize, root)) {
+		found++;
+	}
+	if (found != 0) {
+		free (block);
+		return ped_geometry_duplicate (geom);
+	}
+
+error:
+	free (block);
+error_block:
+error_part:
+	return NULL;
+}
+
+static PedFileSystemOps _asfs_ops = {
+	probe:		_asfs_probe,
+};
+
+PedFileSystemType _asfs_type = {
+       next:		 NULL,
+       ops:		 &_asfs_ops,
+       name:		 "asfs",
+};