mirror of
https://github.com/grub4dos/ntloader.git
synced 2025-05-09 04:01:08 +08:00
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*
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* ntloader -- Microsoft Windows NT6+ loader
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* Copyright (C) 2025 A1ive.
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*
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* ntloader is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation, either version 3 of the License,
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* or (at your option) any later version.
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*
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* ntloader is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 ntloader. If not, see <http://www.gnu.org/licenses/>.
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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 "ntloader.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 __unused = "-";
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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->fsuuid) == 0)
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return 1;
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return 0;
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}
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