mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
Natalia Portillo
9883423155
git-svn-id: svn://claunia.com/FileSystemIDandChk@6 17725271-3d32-4980-a8cb-9ff532f270ba
412 lines
19 KiB
C#
412 lines
19 KiB
C#
using System;
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using System.IO;
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using System.Text;
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using FileSystemIDandChk;
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// Information from Inside Macintosh
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namespace FileSystemIDandChk.Plugins
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{
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class AppleHFS : Plugin
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{
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private DateTime HFSDateDelta = new DateTime(1904, 01, 01, 00, 00, 00);
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public AppleHFS(PluginBase Core)
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{
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base.Name = "Apple Hierarchical File System";
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base.PluginUUID = new Guid("36405F8D-0D26-6ECC-0BBB-1D5225FF404F");
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}
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public override bool Identify(FileStream stream, long offset)
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{
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byte[] signature = new byte[2];
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ushort drSigWord;
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stream.Seek(0x400 + offset, SeekOrigin.Begin);
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stream.Read(signature, 0, 2);
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signature = Swapping.SwapTwoBytes(signature);
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drSigWord = BitConverter.ToUInt16(signature, 0);
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if(drSigWord == 0x4244)
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{
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stream.Seek(0x47C + offset, SeekOrigin.Begin); // Seek to embedded HFS+ signature
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stream.Read(signature, 0, 2);
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signature = Swapping.SwapTwoBytes(signature);
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drSigWord = BitConverter.ToUInt16(signature, 0);
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if(drSigWord == 0x482B) // "H+"
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return false;
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else
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return true;
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}
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else
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return false;
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}
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public override void GetInformation (FileStream stream, long offset, out string information)
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{
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information = "";
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StringBuilder sb = new StringBuilder();
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HFS_MasterDirectoryBlock MDB = new HFS_MasterDirectoryBlock();
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HFS_BootBlock BB = new HFS_BootBlock();
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byte[] sixteen_bit = new byte[2];
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byte[] thirtytwo_bit = new byte[4];
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byte[] fifthteen_bytes = new byte[15];
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stream.Seek(0x400 + offset, SeekOrigin.Begin);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drSigWord = BitConverter.ToUInt16(sixteen_bit, 0);
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if(MDB.drSigWord != 0x4244)
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return;
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drCrDate = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drLsMod = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drAtrb = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drNmFls = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drVBMSt = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drAllocPtr = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drNmAlBlks = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drAlBlkSiz = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drClpSiz = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drAlBlSt = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drNxtCNID = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drFreeBks = BitConverter.ToUInt16(sixteen_bit, 0);
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MDB.drVN = new byte[28];
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stream.Read(MDB.drVN, 0, 28);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drVolBkUp = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drVSeqNum = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drWrCnt = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drXTClpSiz = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drCTClpSiz = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drNmRtDirs = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFilCnt = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drDirCnt = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo0 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo1 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo2 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo3 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo4 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo5 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo6 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drFndrInfo7 = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.drEmbedSigWord = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.xdrStABNt = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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MDB.xdrNumABlks = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drXTFlSize = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Seek(12, SeekOrigin.Current);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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MDB.drCTFlSize = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Seek(12, SeekOrigin.Current);
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stream.Seek(0 + offset, SeekOrigin.Begin);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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BB.signature = BitConverter.ToUInt16(sixteen_bit, 0);
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if(BB.signature == 0x4C4B)
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{
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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BB.branch = BitConverter.ToUInt32(thirtytwo_bit, 0);
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BB.boot_flags = (byte)stream.ReadByte();
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BB.boot_version = (byte)stream.ReadByte();
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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BB.sec_sv_pages = BitConverter.ToInt16(sixteen_bit, 0);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.system_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.finder_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.debug_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.disasm_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.stupscr_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.bootup_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Seek(1, SeekOrigin.Current);
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stream.Read(fifthteen_bytes, 0, 15);
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BB.clipbrd_name = Encoding.ASCII.GetString(fifthteen_bytes);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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BB.max_files = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(sixteen_bit, 0, 2);
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sixteen_bit = Swapping.SwapTwoBytes(sixteen_bit);
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BB.queue_size = BitConverter.ToUInt16(sixteen_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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BB.heap_128k = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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BB.heap_256k = BitConverter.ToUInt32(thirtytwo_bit, 0);
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stream.Read(thirtytwo_bit, 0, 4);
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thirtytwo_bit = Swapping.SwapFourBytes(thirtytwo_bit);
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BB.heap_512k = BitConverter.ToUInt32(thirtytwo_bit, 0);
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}
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else
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BB.signature = 0x0000;
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sb.AppendLine("Apple Hierarchical File System");
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sb.AppendLine();
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sb.AppendLine("Master Directory Block:");
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sb.AppendFormat("Creation date: {0}", HFSDateDelta.AddTicks((long)(MDB.drCrDate*10000000))).AppendLine();
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sb.AppendFormat("Last modification date: {0}", HFSDateDelta.AddTicks((long)(MDB.drLsMod*10000000))).AppendLine();
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sb.AppendFormat("Last backup date: {0}", HFSDateDelta.AddTicks((long)(MDB.drVolBkUp*10000000))).AppendLine();
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sb.AppendFormat("Backup sequence number: {0}", MDB.drVSeqNum).AppendLine();
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if((MDB.drAtrb & 0x80) == 0x80)
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sb.AppendLine("Volume is locked by hardware.");
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if((MDB.drAtrb & 0x100) == 0x100)
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sb.AppendLine("Volume was unmonted.");
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else
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sb.AppendLine("Volume is mounted.");
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if((MDB.drAtrb & 0x200) == 0x200)
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sb.AppendLine("Volume has spared bad blocks.");
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if((MDB.drAtrb & 0x400) == 0x400)
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sb.AppendLine("Volume does not need cache.");
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if((MDB.drAtrb & 0x800) == 0x800)
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sb.AppendLine("Boot volume is inconsistent.");
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if((MDB.drAtrb & 0x1000) == 0x1000)
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sb.AppendLine("There are reused CNIDs.");
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if((MDB.drAtrb & 0x2000) == 0x2000)
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sb.AppendLine("Volume is journaled.");
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if((MDB.drAtrb & 0x4000) == 0x4000)
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sb.AppendLine("Volume is seriously inconsistent.");
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if((MDB.drAtrb & 0x8000) == 0x8000)
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sb.AppendLine("Volume is locked by software.");
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sb.AppendFormat("{0} files on root directory", MDB.drNmFls).AppendLine();
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sb.AppendFormat("{0} directories on root directory", MDB.drNmRtDirs).AppendLine();
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sb.AppendFormat("{0} files on volume", MDB.drFilCnt).AppendLine();
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sb.AppendFormat("{0} directories on volume", MDB.drDirCnt).AppendLine();
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sb.AppendFormat("Volume write count: {0}", MDB.drWrCnt).AppendLine();
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sb.AppendFormat("Volume bitmap starting sector (in 512-bytes): {0}", MDB.drVBMSt).AppendLine();
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sb.AppendFormat("Next allocation block: {0}.", MDB.drAllocPtr).AppendLine();
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sb.AppendFormat("{0} volume allocation blocks.", MDB.drNmAlBlks).AppendLine();
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sb.AppendFormat("{0} bytes per allocation block.", MDB.drAlBlkSiz).AppendLine();
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sb.AppendFormat("{0} bytes to allocate when extending a file.", MDB.drClpSiz).AppendLine();
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sb.AppendFormat("{0} bytes to allocate when extending a Extents B-Tree.", MDB.drXTClpSiz).AppendLine();
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sb.AppendFormat("{0} bytes to allocate when extending a Catalog B-Tree.", MDB.drCTClpSiz).AppendLine();
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sb.AppendFormat("Sector of first allocation block: {0}", MDB.drAlBlSt).AppendLine();
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sb.AppendFormat("Next unused CNID: {0}", MDB.drNxtCNID).AppendLine();
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sb.AppendFormat("{0} unused allocation blocks.", MDB.drFreeBks).AppendLine();
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sb.AppendFormat("{0} bytes in the Extents B-Tree", MDB.drXTFlSize).AppendLine();
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sb.AppendFormat("{0} bytes in the Catalog B-Tree", MDB.drCTFlSize).AppendLine();
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StringBuilder volumeName = new StringBuilder();
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for(int i = 1; i < 28; i++)
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{
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if(MDB.drVN[i] == 0)
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break;
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volumeName.Append(Encoding.ASCII.GetString(MDB.drVN, i, 1));
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}
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sb.AppendFormat("Volume name: {0}", volumeName.ToString()).AppendLine();
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sb.AppendLine("Finder info:");
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sb.AppendFormat("CNID of bootable system's directory: {0}", MDB.drFndrInfo0).AppendLine();
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sb.AppendFormat("CNID of first-run application's directory: {0}", MDB.drFndrInfo1).AppendLine();
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sb.AppendFormat("CNID of previously opened directory: {0}", MDB.drFndrInfo2).AppendLine();
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sb.AppendFormat("CNID of bootable Mac OS 8 or 9 directory: {0}", MDB.drFndrInfo3).AppendLine();
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sb.AppendFormat("CNID of bootable Mac OS X directory: {0}", MDB.drFndrInfo5).AppendLine();
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sb.AppendFormat("Mac OS X Volume ID: {0:X8}{1:X8}", MDB.drFndrInfo6, MDB.drFndrInfo7).AppendLine();
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if(MDB.drEmbedSigWord == 0x482B)
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{
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sb.AppendLine("Volume wraps a HFS+ volume.");
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sb.AppendFormat("Starting block of the HFS+ volume: {0}", MDB.xdrStABNt).AppendLine();
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sb.AppendFormat("Allocations blocks of the HFS+ volume: {0}", MDB.xdrNumABlks).AppendLine();
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}
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if(BB.signature == 0x4C4B)
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{
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sb.AppendLine("Volume is bootable.");
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sb.AppendLine();
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sb.AppendLine("Boot Block:");
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if((BB.boot_flags & 0x40) == 0x40)
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sb.AppendLine("Boot block should be executed.");
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if((BB.boot_flags & 0x80) == 0x80)
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{
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sb.AppendLine("Boot block is in new unknown format.");
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}
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else
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{
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if(BB.sec_sv_pages > 0)
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sb.AppendLine("Allocate secondary sound buffer at boot.");
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else if(BB.sec_sv_pages < 0)
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sb.AppendLine("Allocate secondary sound and video buffers at boot.");
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sb.AppendFormat("System filename: {0}", BB.system_name).AppendLine();
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sb.AppendFormat("Finder filename: {0}", BB.finder_name).AppendLine();
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sb.AppendFormat("Debugger filename: {0}", BB.debug_name).AppendLine();
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sb.AppendFormat("Disassembler filename: {0}", BB.disasm_name).AppendLine();
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sb.AppendFormat("Startup screen filename: {0}", BB.stupscr_name).AppendLine();
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sb.AppendFormat("First program to execute at boot: {0}", BB.bootup_name).AppendLine();
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sb.AppendFormat("Clipboard filename: {0}", BB.clipbrd_name).AppendLine();
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sb.AppendFormat("Maximum opened files: {0}", BB.max_files*4).AppendLine();
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sb.AppendFormat("Event queue size: {0}", BB.queue_size).AppendLine();
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sb.AppendFormat("Heap size with 128KiB of RAM: {0} bytes", BB.heap_128k).AppendLine();
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sb.AppendFormat("Heap size with 256KiB of RAM: {0} bytes", BB.heap_256k).AppendLine();
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sb.AppendFormat("Heap size with 512KiB of RAM or more: {0} bytes", BB.heap_512k).AppendLine();
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}
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}
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else
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sb.AppendLine("Volume is not bootable.");
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information = sb.ToString();
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return;
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}
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private struct HFS_MasterDirectoryBlock // Should be offset 0x0400 bytes in volume
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{
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public UInt16 drSigWord; // Signature, 0x4244
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public ulong drCrDate; // Volume creation date
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public ulong drLsMod; // Volume last modification date
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public UInt16 drAtrb; // Volume attributes
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public UInt16 drNmFls; // Files in root directory
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public UInt16 drVBMSt; // Start 512-byte sector of volume bitmap
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public UInt16 drAllocPtr; // Allocation block to begin next allocation
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public UInt16 drNmAlBlks; // Allocation blocks
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public UInt32 drAlBlkSiz; // Bytes per allocation block
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public UInt32 drClpSiz; // Bytes to allocate when extending a file
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public UInt16 drAlBlSt; // Start 512-byte sector of first allocation block
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public UInt32 drNxtCNID; // CNID for next file
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public UInt16 drFreeBks; // Free allocation blocks
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public byte[] drVN; // Volume name (28 bytes)
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public ulong drVolBkUp; // Volume last backup time
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public UInt16 drVSeqNum; // Volume backup sequence number
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public UInt32 drWrCnt; // Filesystem write count
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public UInt32 drXTClpSiz; // Bytes to allocate when extending the extents B-Tree
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public UInt32 drCTClpSiz; // Bytes to allocate when extending the catalog B-Tree
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public UInt16 drNmRtDirs; // Number of directories in root directory
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public UInt32 drFilCnt; // Number of files in the volume
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|
public UInt32 drDirCnt; // Number of directories in the volume
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public UInt32 drFndrInfo0; // finderInfo[0], CNID for bootable system's directory
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public UInt32 drFndrInfo1; // finderInfo[1], CNID of the directory containing the boot application
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public UInt32 drFndrInfo2; // finderInfo[2], CNID of the directory that should be opened on boot
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|
public UInt32 drFndrInfo3; // finderInfo[3], CNID for Mac OS 8 or 9 directory
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|
public UInt32 drFndrInfo4; // finderInfo[4], Reserved
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|
public UInt32 drFndrInfo5; // finderInfo[5], CNID for Mac OS X directory
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|
public UInt32 drFndrInfo6; // finderInfo[6], first part of Mac OS X volume ID
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|
public UInt32 drFndrInfo7; // finderInfo[7], second part of Mac OS X volume ID
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|
public UInt16 drEmbedSigWord; // Embedded volume signature, "H+" if HFS+ is embedded ignore following two fields if not
|
|
public UInt16 xdrStABNt; // Starting block number of embedded HFS+ volume
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|
public UInt16 xdrNumABlks; // Allocation blocks used by embedded volume
|
|
public UInt32 drXTFlSize; // Bytes in the extents B-Tree
|
|
// 3 HFS extents following, 32 bits each
|
|
public UInt32 drCTFlSize; // Bytes in the catalog B-Tree
|
|
// 3 HFS extents following, 32 bits each
|
|
}
|
|
|
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private struct HFS_BootBlock // Should be offset 0x0000 bytes in volume
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|
{
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public UInt16 signature; // Signature, 0x4C4B if bootable
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public UInt32 branch; // Branch
|
|
public byte boot_flags; // Boot block flags
|
|
public byte boot_version; // Boot block version
|
|
public Int16 sec_sv_pages; // Allocate secondary buffers
|
|
public string system_name; // System file name (10 bytes)
|
|
public string finder_name; // Finder file name (10 bytes)
|
|
public string debug_name; // Debugger file name (10 bytes)
|
|
public string disasm_name; // Disassembler file name (10 bytes)
|
|
public string stupscr_name; // Startup screen file name (10 bytes)
|
|
public string bootup_name; // First program to execute on boot (10 bytes)
|
|
public string clipbrd_name; // Clipboard file name (10 bytes)
|
|
public UInt16 max_files; // 1/4 of maximum opened at a time files
|
|
public UInt16 queue_size; // Event queue size
|
|
public UInt32 heap_128k; // Heap size on a Mac with 128KiB of RAM
|
|
public UInt32 heap_256k; // Heap size on a Mac with 256KiB of RAM
|
|
public UInt32 heap_512k; // Heap size on a Mac with 512KiB of RAM or more
|
|
} // Follows boot code
|
|
}
|
|
}
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|
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