New upstream version 1.4.0

[sven/fuse-exfat.git] / mkfs / vbr.c

diff --git a/mkfs/vbr.c b/mkfs/vbr.c
deleted file mode 100644 (file)
index e40081f..0000000
--- a/mkfs/vbr.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
-       vbr.c (09.11.10)
-       Volume Boot Record creation code.
-
-       Free exFAT implementation.
-       Copyright (C) 2011-2018  Andrew Nayenko
-
-       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 2 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, write to the Free Software Foundation, Inc.,
-       51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "vbr.h"
-#include "fat.h"
-#include "cbm.h"
-#include "uct.h"
-#include "rootdir.h"
-#include <string.h>
-
-static off_t vbr_alignment(void)
-{
-       return get_sector_size();
-}
-
-static off_t vbr_size(void)
-{
-       return 12 * get_sector_size();
-}
-
-static void init_sb(struct exfat_super_block* sb)
-{
-       uint32_t clusters_max;
-       uint32_t fat_sectors;
-
-       clusters_max = get_volume_size() / get_cluster_size();
-       fat_sectors = DIV_ROUND_UP((off_t) clusters_max * sizeof(cluster_t),
-                       get_sector_size());
-
-       memset(sb, 0, sizeof(struct exfat_super_block));
-       sb->jump[0] = 0xeb;
-       sb->jump[1] = 0x76;
-       sb->jump[2] = 0x90;
-       memcpy(sb->oem_name, "EXFAT   ", sizeof(sb->oem_name));
-       sb->sector_start = cpu_to_le64(get_first_sector());
-       sb->sector_count = cpu_to_le64(get_volume_size() / get_sector_size());
-       sb->fat_sector_start = cpu_to_le32(
-                       fat.get_alignment() / get_sector_size());
-       sb->fat_sector_count = cpu_to_le32(ROUND_UP(
-                       le32_to_cpu(sb->fat_sector_start) + fat_sectors,
-                               1 << get_spc_bits()) -
-                       le32_to_cpu(sb->fat_sector_start));
-       sb->cluster_sector_start = cpu_to_le32(
-                       get_position(&cbm) / get_sector_size());
-       sb->cluster_count = cpu_to_le32(clusters_max -
-                       ((le32_to_cpu(sb->fat_sector_start) +
-                         le32_to_cpu(sb->fat_sector_count)) >> get_spc_bits()));
-       sb->rootdir_cluster = cpu_to_le32(
-                       (get_position(&rootdir) - get_position(&cbm)) / get_cluster_size()
-                       + EXFAT_FIRST_DATA_CLUSTER);
-       sb->volume_serial = cpu_to_le32(get_volume_serial());
-       sb->version.major = 1;
-       sb->version.minor = 0;
-       sb->volume_state = cpu_to_le16(0);
-       sb->sector_bits = get_sector_bits();
-       sb->spc_bits = get_spc_bits();
-       sb->fat_count = 1;
-       sb->drive_no = 0x80;
-       sb->allocated_percent = 0;
-       sb->boot_signature = cpu_to_le16(0xaa55);
-}
-
-static int vbr_write(struct exfat_dev* dev)
-{
-       struct exfat_super_block sb;
-       uint32_t checksum;
-       le32_t* sector = malloc(get_sector_size());
-       size_t i;
-
-       if (sector == NULL)
-       {
-               exfat_error("failed to allocate sector-sized block of memory");
-               return 1;
-       }
-
-       init_sb(&sb);
-       if (exfat_write(dev, &sb, sizeof(struct exfat_super_block)) < 0)
-       {
-               free(sector);
-               exfat_error("failed to write super block sector");
-               return 1;
-       }
-       checksum = exfat_vbr_start_checksum(&sb, sizeof(struct exfat_super_block));
-
-       memset(sector, 0, get_sector_size());
-       sector[get_sector_size() / sizeof(sector[0]) - 1] =
-                       cpu_to_le32(0xaa550000);
-       for (i = 0; i < 8; i++)
-       {
-               if (exfat_write(dev, sector, get_sector_size()) < 0)
-               {
-                       free(sector);
-                       exfat_error("failed to write a sector with boot signature");
-                       return 1;
-               }
-               checksum = exfat_vbr_add_checksum(sector, get_sector_size(), checksum);
-       }
-
-       memset(sector, 0, get_sector_size());
-       for (i = 0; i < 2; i++)
-       {
-               if (exfat_write(dev, sector, get_sector_size()) < 0)
-               {
-                       free(sector);
-                       exfat_error("failed to write an empty sector");
-                       return 1;
-               }
-               checksum = exfat_vbr_add_checksum(sector, get_sector_size(), checksum);
-       }
-
-       for (i = 0; i < get_sector_size() / sizeof(sector[0]); i++)
-               sector[i] = cpu_to_le32(checksum);
-       if (exfat_write(dev, sector, get_sector_size()) < 0)
-       {
-               free(sector);
-               exfat_error("failed to write checksum sector");
-               return 1;
-       }
-
-       free(sector);
-       return 0;
-}
-
-const struct fs_object vbr =
-{
-       .get_alignment = vbr_alignment,
-       .get_size = vbr_size,
-       .write = vbr_write,
-};