mirror of
https://github.com/grub4dos/ntloader.git
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80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
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* ntloader -- Microsoft Windows NT6+ loader
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* Copyright (C) 2023 A1ive.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <fsuuid.h>
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#include <cmdline.h>
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#include <ntboot.h>
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int
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check_fsuuid (void *disk, uint64_t lba,
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int (*disk_read) (void *disk, uint64_t sector, size_t len, void *buf))
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{
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union volume_boot_record vbr;
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char uuid[17] = " ";
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const char *fs = "-";
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if (!disk_read (disk, lba, sizeof (vbr), &vbr))
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{
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DBG ("invalid partition\n");
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return 0;
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}
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if (memcmp (vbr.exfat.oem_name, "EXFAT", 5) == 0)
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{
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snprintf (uuid, 17, "%04x-%04x",
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(uint16_t) (vbr.exfat.num_serial >> 16),
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(uint16_t) vbr.exfat.num_serial);
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fs = "exFAT";
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}
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else if (memcmp (vbr.ntfs.oem_name, "NTFS", 4) == 0)
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{
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snprintf (uuid, 17, "%016llx", (unsigned long long) vbr.ntfs.num_serial);
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fs = "NTFS ";
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}
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else if (memcmp (vbr.fat.version.fat12_or_fat16.fstype, "FAT12", 5) == 0)
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{
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snprintf (uuid, 17, "%04x-%04x",
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(uint16_t) (vbr.fat.version.fat12_or_fat16.num_serial >> 16),
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(uint16_t) vbr.fat.version.fat12_or_fat16.num_serial);
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fs = "FAT12";
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}
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else if (memcmp (vbr.fat.version.fat12_or_fat16.fstype, "FAT16", 5) == 0)
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{
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snprintf (uuid, 17, "%04x-%04x",
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(uint16_t) (vbr.fat.version.fat12_or_fat16.num_serial >> 16),
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(uint16_t) vbr.fat.version.fat12_or_fat16.num_serial);
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fs = "FAT16";
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}
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else if (memcmp (vbr.fat.version.fat32.fstype, "FAT32", 5) == 0)
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{
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snprintf (uuid, 17, "%04x-%04x",
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(uint16_t) (vbr.fat.version.fat32.num_serial >> 16),
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(uint16_t) vbr.fat.version.fat32.num_serial);
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fs = "FAT32";
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}
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DBG ("%s %s\n", fs, uuid);
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if (strcasecmp (uuid, nt_cmdline->uuid) == 0)
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return 1;
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return 0;
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}
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