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/*
Derived from source code of TrueCrypt 7.1a, which is
Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
by the TrueCrypt License 3.0.
Modifications and additions to the original source code (contained in this file)
and all other portions of this file are Copyright (c) 2013-2017 IDRIX
and are governed by the Apache License 2.0 the full text of which is
contained in the file License.txt included in VeraCrypt binary and source
code distribution packages.
*/
#ifndef TC_HEADER_Boot_BootCommon
#define TC_HEADER_Boot_BootCommon
#include "Common/Password.h"
#include "BootDefs.h"
// The user will be advised to upgrade the rescue disk if upgrading from the following or any previous version
#define TC_RESCUE_DISK_UPGRADE_NOTICE_MAX_VERSION 0x0122
#define TC_BOOT_LOADER_AREA_SIZE (TC_BOOT_LOADER_AREA_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS)
#define TC_BOOT_VOLUME_HEADER_SECTOR (TC_BOOT_LOADER_AREA_SECTOR_COUNT - 1)
#define TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET (TC_BOOT_VOLUME_HEADER_SECTOR * TC_SECTOR_SIZE_BIOS)
#define TC_CD_BOOTSECTOR_OFFSET 0xd000
#define TC_CD_BOOT_LOADER_SECTOR 26
#define TC_ORIG_BOOT_LOADER_BACKUP_SECTOR TC_BOOT_LOADER_AREA_SECTOR_COUNT
#define TC_ORIG_BOOT_LOADER_BACKUP_SECTOR_OFFSET (TC_ORIG_BOOT_LOADER_BACKUP_SECTOR * TC_SECTOR_SIZE_BIOS)
#define TC_BOOT_LOADER_BACKUP_RESCUE_DISK_SECTOR (TC_ORIG_BOOT_LOADER_BACKUP_SECTOR + TC_BOOT_LOADER_AREA_SECTOR_COUNT)
#define TC_BOOT_LOADER_BACKUP_RESCUE_DISK_SECTOR_OFFSET (TC_BOOT_LOADER_BACKUP_RESCUE_DISK_SECTOR * TC_SECTOR_SIZE_BIOS)
#define TC_MBR_SECTOR 0
#define TC_MAX_MBR_BOOT_CODE_SIZE 440
#define TC_MAX_EXTRA_BOOT_PARTITION_SIZE (512UL * 1024UL * 1024UL)
#pragma pack (1)
typedef struct
{
byte Flags;
} BootSectorConfiguration;
// Modifying this value can introduce incompatibility with previous versions
#define TC_BOOT_LOADER_ARGS_OFFSET 0x10
typedef struct
{
// Modifying this structure can introduce incompatibility with previous versions
char Signature[8];
uint16 BootLoaderVersion;
uint16 CryptoInfoOffset;
uint16 CryptoInfoLength;
uint32 HeaderSaltCrc32;
Password BootPassword;
uint64 HiddenSystemPartitionStart;
uint64 DecoySystemPartitionStart;
uint32 Flags;
uint32 BootDriveSignature;
uint32 BootArgumentsCrc32;
} BootArguments;
// Modifying these values can introduce incompatibility with previous versions
#define TC_BOOT_ARGS_FLAG_EXTRA_BOOT_PARTITION 0x1
#pragma pack ()
// Boot arguments signature should not be defined as a static string
// Modifying these values can introduce incompatibility with previous versions
#define TC_SET_BOOT_ARGUMENTS_SIGNATURE(SG) do { SG[0] = 'T'; SG[1] = 'R'; SG[2] = 'U'; SG[3] = 'E'; SG[4] = 0x11; SG[5] = 0x23; SG[6] = 0x45; SG[7] = 0x66; } while (FALSE)
#define TC_IS_BOOT_ARGUMENTS_SIGNATURE(SG) (SG[0] == 'T' && SG[1] == 'R' && SG[2] == 'U' && SG[3] == 'E' && SG[4] == 0x11 && SG[5] == 0x23 && SG[6] == 0x45 && SG[7] == 0x66)
#if defined(_MSC_VER) && !defined(TC_WINDOWS_BOOT)
#define DCS_DISK_ENTRY_LIST_HEADER_SIGN SIGNATURE_64 ('D','C','S','D','E','L','S','T')
#ifndef CSTATIC_ASSERT
#define CSTATIC_ASSERT(b, name) typedef int StaticAssertFailed##name[b ? 1 : -1];
#endif
#define DE_IDX_CRYPTOHEADER 0
#define DE_IDX_LIST 1
#define DE_IDX_DISKID 2
#define DE_IDX_MAINGPTHDR 3
#define DE_IDX_MAINGPTENTRYS 4
#define DE_IDX_ALTGPTHDR 5
#define DE_IDX_ALTGPTENTRYS 6
#define DE_IDX_EXEC 7
#define DE_IDX_PWDCACHE 8
#define DE_IDX_RND 9
#define DE_IDX_TOTAL 10
CSTATIC_ASSERT(DE_IDX_TOTAL <= 15, DE_IDX_TOTAL_too_big);
enum DcsDiskEntryTypes {
DE_Unused = 0,
DE_Sectors,
DE_List,
DE_DISKID,
DE_ExecParams,
DE_PwdCache,
DE_Rnd
};
#pragma pack(1)
typedef struct _SECREGION_BOOT_PARAMS {
uint64 Ptr;
uint32 Size;
uint32 Crc;
} SECREGION_BOOT_PARAMS;
typedef struct {
uint32 Data1;
uint16 Data2;
uint16 Data3;
byte Data4[8];
} DCS_GUID;
// DE types
typedef struct _DCS_DISK_ENTRY_SECTORS {
uint32 Type;
uint32 Offset; // Offset in memory
uint64 Reserved;
uint64 Start; // Start on disk (byte)
uint64 Length; // length on disk (byte)
} DCS_DISK_ENTRY_SECTORS;
CSTATIC_ASSERT(sizeof(DCS_DISK_ENTRY_SECTORS) == 32, Wrong_size_DCS_DISK_ENTRY_SECTORS);
typedef struct _DCS_DISK_ENTRY_PARAMS {
uint32 Type;
uint32 Offset;
uint64 Reserved[2];
uint64 Length; // size of data
} DCS_DISK_ENTRY_PARAMS;
CSTATIC_ASSERT(sizeof(DCS_DISK_ENTRY_PARAMS) == 32, Wrong_size_DCS_DISK_ENTRY_PARAMS);
typedef struct _DCS_DISK_ENTRY_DISKID {
uint32 Type;
uint32 MbrID;
uint64 ReservedDiskId;
DCS_GUID GptID;
} DCS_DISK_ENTRY_DISKID;
CSTATIC_ASSERT(sizeof(DCS_DISK_ENTRY_DISKID) == 32, Wrong_size_DCS_DISK_ENTRY_DISKID);
#pragma warning(disable:4201)
typedef struct _DCS_DISK_ENTRY {
union {
struct {
uint32 Type;
uint32 Offset;
byte reserved[16];
uint64 Length; // size of structure at Offset
};
DCS_DISK_ENTRY_SECTORS Sectors;
DCS_DISK_ENTRY_DISKID DiskId;
DCS_DISK_ENTRY_PARAMS Prm;
};
} DCS_DISK_ENTRY;
#pragma warning(default:4201)
CSTATIC_ASSERT(sizeof(DCS_DISK_ENTRY) == 32, Wrong_size_DCS_DISK_ENTRY);
// Static compile time checks field offsets
#ifndef FIELD_OFFSET
#define FIELD_OFFSET(t, f) ((UINTN)(&((t*)0)->f))
#endif
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Type) == FIELD_OFFSET(DCS_DISK_ENTRY_SECTORS, Type), Wrong_Type_offset);
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Type) == FIELD_OFFSET(DCS_DISK_ENTRY_DISKID, Type), Wrong_Type_offset);
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Type) == FIELD_OFFSET(DCS_DISK_ENTRY_PARAMS, Type), Wrong_Type_offset);
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Length) == FIELD_OFFSET(DCS_DISK_ENTRY_SECTORS, Length), Wrong_Length_offset);
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Length) == FIELD_OFFSET(DCS_DISK_ENTRY_PARAMS, Length), Wrong_Length_offset);
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Offset) == FIELD_OFFSET(DCS_DISK_ENTRY_SECTORS, Offset), Wrong_Offset_offset);
CSTATIC_ASSERT(FIELD_OFFSET(DCS_DISK_ENTRY, Offset) == FIELD_OFFSET(DCS_DISK_ENTRY_PARAMS, Offset), Wrong_Offset_offset);
// DE type specific data
// DE List
typedef struct _DCS_DISK_ENTRY_LIST {
// EFI_TABLE_HEADER
uint64 Signature;
uint32 Revision;
uint32 HeaderSize; //< The size, in bytes, of the entire table including the EFI_TABLE_HEADER.
uint32 CRC32; //< The 32-bit CRC for the entire table. This value is computed by setting this field to 0, and computing the 32-bit CRC for HeaderSize bytes.
uint32 Reserved; //< Reserved field that must be set to 0.
//
uint32 Count;
uint32 DataSize;
//
DCS_DISK_ENTRY DE[15];
} DCS_DISK_ENTRY_LIST;
CSTATIC_ASSERT(sizeof(DCS_DISK_ENTRY_LIST) == 512, Wrong_size_DCS_DISK_ENTRY_LIST);
typedef struct _DCS_DEP_EXEC {
DCS_GUID ExecPartGuid;
uint16 ExecCmd[248];
} DCS_DEP_EXEC;
CSTATIC_ASSERT(sizeof(DCS_DEP_EXEC) == 512, Wrong_size_DCS_DEP_EXEC);
#define DCS_DEP_PWD_CACHE_SIGN SIGNATURE_64 ('P','W','D','C','A','C','H','E')
typedef struct _DCS_DEP_PWD_CACHE {
uint64 Sign;
uint32 CRC;
uint32 Count;
Password Pwd[4];
int32 Pim[4];
byte pad[512 - 8 - 4 - 4 - (sizeof(Password) + 4) * 4];
} DCS_DEP_PWD_CACHE;
CSTATIC_ASSERT(sizeof(DCS_DEP_PWD_CACHE) == 512, Wrong_size_DCS_DEP_PWD_CACHE);
#pragma pack()
#endif // #if !defined(TC_WINDOWS_BOOT)
#endif // TC_HEADER_Boot_BootCommon
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