Files
ImHex-Patterns/patterns/fs/refs.hexpat

287 lines
8.7 KiB
Rust

#pragma author 5h4rrK // https://www.github.com/5h4rrK
#pragma organization temabi0s // (https://bi0s.in)
#pragma description ReFS-File-System
#pragma array_limit 10000
import type.types.win32;
import type.guid;
import std.mem;
enum FILESYSTEM : u64 {
ReFS = 0x53466552
};
struct ReFS_Version {
u8 Major;
u8 Minor;
};
struct CheckPoint_REFS_Version {
u16 Major;
u16 Minor;
};
enum BLOCK : u32 {
SuperBlock = 0x42505553,
CheckPoint = 0x504b4843,
MSBPlus = 0x2b42534d
};
struct SELF_DESCRIPTOR{
u32 start = $;
u64 LCN1[[name("FirstLCN")]];
u64 LCN2[[name("SecondLCN")]];
u64 LCN3[[name("ThirdLCN")]];
u64 LCN4[[name("FourthLCN")]];
$ = $+2;
u8 checksumtype[[name("ChecksumType")]];
u8 checksumoffset[[name("ChecksumOffset")]];
u16 checksumlen[[name("CheckSumLength")]];
$ = $+2;
if(checksumtype == 2){
u64 chksum[[comment("Crc64"),name("CRC64-CheckSum") ]];}
else if(checksumtype == 1){
u32 chksum[[comment("Crc32"),name("CRC32-CheckSum") ]];
}
u32 rem = this.parent.lenselfdescriptor - ($ - start);
BYTE buff[rem];
};
struct META_HEADERS {
BLOCK Signature[[comment("Block Signature"), name("BlockSignature")]];
u32 unk[[comment("Fixed Value 0x02"), name("Unknown")]];
u32 zero[[name("AlwaysZero")]];
u32 volsig[[name("VolumeSignature")]];
u128 blockNo[[comment("Most Recent Block"), name("PageRecency")]];
u64 LCN1[[comment("MetaPage 1st LogicalClusterNumber"), name("FirstLCN")]];
u64 LCN2[[comment("MetaPage 2nd LogicalClusterNumber"), name("SecondLCN")]];
u64 LCN3[[comment("MetaPage 3rd LogicalClusterNumber"), name("ThirdLCN")]];
u64 LCN4[[comment("MetaPage 4th LogicalClusterNumber"), name("FourthLCN")]];
u64 tableidlo[[name("TableIdentifierHigh")]];
u64 tableidhi[[name("TableIdentifierLow")]];
};
struct OFFSET_ENTRIES{
u16 offset[[name("Offset")]];
u16 unk[[name("Ignore")]];
};
struct ATTRIBUTE {
u64 LCN1[[name("FirstLCN")]];
u64 LCN2[[name("SecondLCN")]];
u64 LCN3[[name("ThirdLCN")]];
u64 LCN4[[name("FourthLCN")]];
u32 Unk1[[comment("UnknownField"), name("Unknown1")]];
u32 Unk2[[comment("UnknownField"), name("Unknown2")]];
u64 checksum[[name("CheckSum")]];
BYTE ZeroPadding[56][[name("Padding")]];
};
enum NodeType : BYTE {
InnerNode = 0x01,
RootNode = 0x02,
StreamNode = 0x03,
};
struct INDEX_HEADER {
u32 size[[name("DataStartOffset")]];
u32 dataendoff[[name("DataAreaEndOffset")]];
u32 freebuff[[name("FreeBuff")]];
BYTE height[[name("Height")]];
NodeType ntype[[name("NodeType")]];
u16 unused1[[name("UnUsed")]];
u32 keyindxoff[[name("KeyIndexOffset")]];
u32 keycount[[name("KeysCount")]];
u64 unused2[[name("UnUsed")]];
u32 end[[name("KeyIndexEnd")]];
u32 align[[name("Alignment")]];
$ = this.parent.start_pos + 0x50 + this.parent.rootsize + keyindxoff;
OFFSET_ENTRIES entries[keycount][[name("KeyEntries")]];
};
enum Flags : u16 {
RightMost = 0x02,
DeletedEntry = 0x04,
StreamIndexEntry = 0x40,
};
struct INDEX_ENTRY_STRUCTURE {
u32 start_pos = $;
u32 indxentlen[[name("IndxEntryLen")]];
u16 keyoff[[name("KeyOffset")]];
u16 keylen[[name("KeyLen")]];
Flags flag[[name("Flags")]];
u16 valoff[[name("ValOffset")]];
u16 vallen[[name("ValLen")]];
$ = start_pos + keyoff;
char key[keylen][[name("Key")]];
$ = start_pos + valoff;
char value[vallen][[name("Value")]];
$ = start_pos + indxentlen;
};
struct ROOT_NODE{
u32 start_pos = $;
META_HEADERS pagehdr[[name("PageHeader")]];
u32 rootsize[[name("RootSize")]];
u16 fixed[[name("Fixed(0x28)")]];
u16 unk1[[name("Unknown")]];
u16 unk2[[name("Unknown")]];
u16 unk3[[name("Unknown")]];
u16 schema[[name("TableSchema")]];
u16 unk4[[name("Unknown")]];
u16 schemadup[[name("TableSchema")]];
u16 unk5[[name("Unknown")]];
u16 unk6[[name("Unknown")]];
u16 unk7[[name("Unknown")]];
u64 noofextends[[name("ExtendCount")]];
u64 noofrows[[name("RowsCount")]];
char comps[rootsize - ($ - start_pos) + 0x50][[name("Components")]];
$ = (start_pos + 0x50 + rootsize);
INDEX_HEADER indxhdr[[name("IndexHeader")]];
// $ = start_pos + 0x50 + rootsize + indxhdr.keyindxoff;
$ = (start_pos + 0x50 + rootsize + indxhdr.size);
INDEX_ENTRY_STRUCTURE indxentrystruct[indxhdr.keycount][[name("IndexEntry")]];
};
u32 keeptrack = 0;
struct GLOBALROOTNODE {
u32 GlobalElemEntryOff;
u32 prev = $;
$ = (0x1000 * ($ / 0x1000));
$ = $ + GlobalElemEntryOff;
keeptrack += 1;
if (keeptrack == 1) {
ATTRIBUTE ObjectIDTable;
}
else if (keeptrack == 2) {
ATTRIBUTE MediumAllocatorTable;
}
else if (keeptrack == 3) {
ATTRIBUTE ContainerAllocatorTable;
}
else if (keeptrack == 4) {
ATTRIBUTE SchemaTable;
}
else if (keeptrack == 5) {
ATTRIBUTE ParentChildTable[[comment("Parent Child Table")]];
}
else if (keeptrack == 6) {
ATTRIBUTE ObjectIDDup;
}
else if (keeptrack == 7) {
ATTRIBUTE BlockCountTable;
}
else if (keeptrack == 8) {
ATTRIBUTE ContainerTable;
u32 prev_pos = $;
ROOT_NODE node1 @ (ContainerTable.LCN1 * clustersz)[[name("ContainerNode")]];
$ = prev_pos;
}
else if (keeptrack == 9) {
ATTRIBUTE ContainerTableDup;
u32 prev_pos = $;
ROOT_NODE node1 @ (ContainerTableDup.LCN1 * clustersz)[[name("ContainerDupNode")]];
$ = prev_pos;
}
else if (keeptrack == 10) {
ATTRIBUTE SchemaTableDup;
}
else if (keeptrack == 11) {
ATTRIBUTE ContainerIndexTable;
}
else if (keeptrack == 12) {
ATTRIBUTE IntegrityStateTable;
}
else if (keeptrack == 13) {
ATTRIBUTE SmallAllocatorTable;
u32 prev_pos = $;
ROOT_NODE node1 @ (SmallAllocatorTable.LCN1 * clustersz)[[name("SmallAllocatorNode")]];
$ = prev_pos;
}
$ = prev;
};
struct CHECKPOINT {
META_HEADERS CheckPointMetaHeader[[name("FSPageMetaHeader")]];
$ += (0x04);
CheckPoint_REFS_Version ReFSVersion;
u32 offsetselfdescriptor[[comment("Self Descriptor Offset")]];
u32 lenselfdescriptor[[comment("Self Descriptor Size"),name("SelfDescriptorSz")]];
u64 blockno[[comment("Most Recent CheckPoint") , name("BlockNumber")]];
u32 prev_pos = $;
$ = ($ / clustersz) *clustersz + offsetselfdescriptor;
SELF_DESCRIPTOR selfdes[[name("SelfDescriptor")]];
$ = prev_pos;
$ += (0x28);
u32 NumOfEntries;
GLOBALROOTNODE GlobalRootNodes[NumOfEntries];
$ += (0x08);
};
struct SUPERBLOCK {
META_HEADERS SuperBlockMetaHeader[[name("FSPageMetaHeader")]];
type::GUID GUID;
$ = $ + (0x10 * 0x01);
u32 checkpointOffset[[name("CheckPointOffset")]];
u32 noofcheckpoint[[name("NoOfCheckPointEntry")]];
u32 offsetselfdescriptor[[name("SelfDescriptorOffset")]];
u32 lenselfdescriptor[[name("SelfDescriptorLength")]];
$ = $ + (0x10 * 0x04);
u64 primarychekpoint[[name("PrimaryCheckPoint")]];
u64 secondaychekpoint[[name("SecondaryCheckPoint")]];
SELF_DESCRIPTOR selfdes[[name("SelfDescriptor")]];
};
struct VOLUME_BOOT_RECORD {
BYTE jmpInstruction[3] [[comment("Jump Instruction"), name("JumpInstruction")]];
FILESYSTEM FileSystem[[comment("FileSystemName"), name("FileSystem")]];
BYTE UnKnown[5];
char Identifier[4][[comment("File System Recognition Structure, allows OS to recognise the structure"), name("FSRSIdentifier")]];
u16 Length[[comment("Size of VBR"), name("Length") ]];
u16 Checksum[[comment("Computed FileSystem Information Checksum"), name("CheckSum")]];
u64 TotalNoOfSectors;
u32 BytesPerSec[[comment("Bytes Per Sector"), name("BytesPerSector")]];
u32 SectorPerCluster[[comment("Sector Per Cluster"), name("SectorPerCluster")]];
ReFS_Version ReFSVersion;
BYTE UnknownBuff[0x0e][[name("Unknown")]];
u64 SerialNo[[name("SerialNumber")]];
u64 BytesPerContainer[[name("BytesPerContainer")]];
};
struct REFS_FILE_SYSTEM {
u64 checkVal = std::mem::read_unsigned($+3, 8);
$ = 0;
if(checkVal == FILESYSTEM::ReFS){
VOLUME_BOOT_RECORD vbr @ 0x00[[name("VolumeBootRecord")]];
SUPERBLOCK SuperBlock1 @ (0x1e * 0x1000)[[name("SuperBlock1")]];
u32 cluster_size = vbr.BytesPerSec * vbr.SectorPerCluster;
CHECKPOINT PrimaryCheckPoint @(SuperBlock1.primarychekpoint * cluster_size)[[name("PrimaryCheckPoint1")]];
keeptrack = 0;
CHECKPOINT SecondaryCheckPoint @(SuperBlock1.secondaychekpoint * cluster_size)[[name("SecondaryCheckPoint1")]];
SUPERBLOCK SuperBlock2 @(((vbr.TotalNoOfSectors / vbr.SectorPerCluster) - 3) * cluster_size)[[name("SuperBlock2")]];
keeptrack = 0;
CHECKPOINT PrimaryCheckPoint2 @(SuperBlock2.primarychekpoint * cluster_size)[[name("PrimaryCheckPoint2")]];
keeptrack = 0;
CHECKPOINT SecondaryCheckPoint2 @(SuperBlock2.secondaychekpoint * cluster_size)[[name("SecondaryCheckPoint2")]];
SUPERBLOCK SuperBlock3 @(((vbr.TotalNoOfSectors / vbr.SectorPerCluster) - 2) * cluster_size)[[name("SuperBlock3")]];
keeptrack = 0;
CHECKPOINT PrimaryCheckPoint3 @(SuperBlock3.primarychekpoint * cluster_size)[[name("PrimaryCheckPoint3")]];
keeptrack = 0;
CHECKPOINT SecondaryCheckPoint3 @(SuperBlock3.secondaychekpoint * cluster_size)[[name("SecondaryCheckPoint3")]];
}
else{
exit(0);
}
};
u32 clustersz = std::mem::read_unsigned($ + 0x20, $+4) * std::mem::read_unsigned($ + 0x24, $+4);
REFS_FILE_SYSTEM ReFSFileSystem @0x00;