The-Homebrew-Cloud/nfs2iso2nfs
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nfs2iso2nfs/Program.cs

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initial commit
2017-01-04 22:54:56 +01:00
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace nfs2iso2nfs
{
class Program
{
public const int SECTOR_SIZE = 0x8000;
public const int HEADER_SIZE = 0x200;
public static byte[] WII_COMMON_KEY = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
public const int NFS_SIZE = 0xFA00000;
public static bool dec = false;
public static bool enc = false;
public static bool keepFiles = false;
public static string keyFile = "..\\code\\htk.bin";
public static string isoFile = "game.iso";
public static string wiiKeyFile = "wii_common_key.bin";
public static string nfsDir = "";
static void Main(string[] args)
{
Console.WriteLine();
if (checkArgs(args) == -1)
return;
byte[] key = checkKeyFiles();
if (key == null)
return;
if (dec)
{
byte[] header = getHeader(nfsDir + "\\hif_000000.nfs");
combineNFSFiles("hif.nfs");
EnDecryptNFS("hif.nfs", "hif_dec.nfs", key, buildZero(key.Length), false, header);
if (!keepFiles)
File.Delete("hif.nfs");
unpackNFS("hif_dec.nfs","hif_unpack.nfs", header);
if (!keepFiles)
File.Delete("hif_dec.nfs");
manipulateISO("hif_unpack.nfs", "game.iso", true);
if (!keepFiles)
File.Delete("hif_unpack.nfs");
}
else if (enc)
{
long[] size = manipulateISO(isoFile, "hif_unpack.nfs", false);
byte[] header = packNFS("hif_unpack.nfs", "hif_dec.nfs", size);
if (!keepFiles)
File.Delete("hif_unpack.nfs");
EnDecryptNFS("hif_dec.nfs", "hif.nfs", key, buildZero(key.Length), true, header);
if (!keepFiles)
File.Delete("hif_dec.nfs");
splitNFSFile("hif.nfs");
if (!keepFiles)
File.Delete("hif.nfs");
}
}
public static int checkArgs(string[] args)
{
for (int i = 0; i < args.Length; i++)
switch (args[i])
{
case "-dec":
dec=true;
break;
case "-enc":
enc = true;
break;
case "-keep":
keepFiles = true;
break;
case "-key":
if (i == args.Length)
return -1;
keyFile = args[i+1];
i++;
break;
case "-wiikey":
if (i == args.Length)
return -1;
wiiKeyFile = args[i+1];
i++;
break;
case "-iso":
if (i == args.Length)
return -1;
isoFile = args[i + 1];
i++;
break;
case "-nfs":
if (i == args.Length)
return -1;
nfsDir = args[i + 1];
i++;
break;
case "-h":
Console.WriteLine("+++++ NFS2ISO2NFS +++++");
Console.WriteLine();
Console.WriteLine("-dec Decrypt .nfs files to an .iso file.");
Console.WriteLine("-enc Encrypt an .íso file to -nfs file.s");
Console.WriteLine("-key <file> Location of AES key file. Default: code\\htk.bin.");
Console.WriteLine("-wiikey <file> Location of Wii Common key file. Default: wii_common_key.bin.");
Console.WriteLine("-iso <file> Location of .iso file. Default: game.iso.");
Console.WriteLine("-nfs <file> Location of .nfs files. Default: current Directory.");
Console.WriteLine("-keep Don't delete the files produced in intermediate steps.");
Console.WriteLine("-help Print this text.");
return -1;
default:
break;
}
string dir = Directory.GetCurrentDirectory();
if (!Path.IsPathRooted(keyFile))
keyFile = dir + "\\" + keyFile;
if (!Path.IsPathRooted(isoFile))
isoFile = dir + "\\" + isoFile;
if (!Path.IsPathRooted(wiiKeyFile))
wiiKeyFile = dir + "\\" + wiiKeyFile;
if (!Path.IsPathRooted(nfsDir))
nfsDir = dir + "\\" + nfsDir;
if (dec || ((!dec && !enc) && File.Exists(nfsDir + "\\hif_000000.nfs")))
{
Console.WriteLine("+++++ NFS2ISO +++++");
Console.WriteLine();
if (dec && !enc && !File.Exists(nfsDir + "\\hif_000000.nfs"))
{
Console.WriteLine(".nfs files not found! Exiting...");
return -1;
}
else if ((!dec && !enc) && File.Exists(nfsDir + "\\hif_000000.nfs"))
{
Console.WriteLine("You haven't specified if you want to use nfs2iso or iso2nfs");
Console.WriteLine("Found .nfs files! Assuming you want to use nfs2iso...");
dec = true;
enc = false;
}
}
else if (enc || (((!dec && !enc) || (!dec && !enc)) && File.Exists(isoFile)))
{
Console.WriteLine("+++++ ISO2NFS +++++");
Console.WriteLine();
if (!dec && enc && !File.Exists(isoFile))
{
Console.WriteLine(".iso file not found! Exiting...");
return -1;
}
else if (((dec && enc) || (!dec && !enc)) && File.Exists(isoFile))
{
Console.WriteLine("You haven't specified if you want to use nfs2iso or iso2nfs");
Console.WriteLine("Found .iso file! Assuming you want to use iso2nfs...");
dec = false;
enc = true;
}
}
else
{
Console.WriteLine("You haven't specified if you want to use nfs2iso or iso2nfs");
Console.WriteLine("Found neither .iso nor .nfs files! Check -help for usage of this program.");
return -1;
}
return 0;
}
public static byte[] checkKeyFiles()
{
Console.WriteLine("Searching for AES key file...");
if (!File.Exists(keyFile))
{
Console.WriteLine("Could not find AES key file! Exiting...");
return null;
}
byte[] key = getKey(keyFile);
if (key == null)
{
Console.WriteLine("AES key file has wrong file size! Exiting...");
return null;
}
Console.WriteLine("AES key file found!");
if (WII_COMMON_KEY[0] != 0xeb)
{
Console.WriteLine("Wii common key not found in source code. Looking for file...");
if (!File.Exists(wiiKeyFile))
{
Console.WriteLine("Could not find Wii common key file! Exiting...");
return null;
}
WII_COMMON_KEY = getKey(wiiKeyFile);
if (key == null)
{
Console.WriteLine("Wii common key file has wrong file size! Exiting...");
return null;
}
Console.WriteLine("Wii Common Key file found!");
}
else Console.WriteLine("Wii common key found in source code!");
return key;
}
public static byte[] getKey(string keyDir)
{
using (var keyFile = new BinaryReader(File.OpenRead(keyDir)))
{
long keySize = keyFile.BaseStream.Length;
if (keySize != 16)
return null;
return keyFile.ReadBytes(0x10);
}
}
public static byte[] buildZero(int size)
{
byte[] iv = new byte[size];
for (int i = 0; i < size; i++)
iv[i] = 0;
return iv;
}
public static void combineNFSFiles(string outFile)
{
using (var nfs = new BinaryWriter(File.OpenWrite(outFile)))
{
Console.WriteLine("Looking for .nfs files...");
int nfsNo = -1;
while (File.Exists(nfsDir + "\\hif_" + String.Format("{0:D6}", nfsNo + 1) + ".nfs"))
nfsNo++;
Console.WriteLine((nfsNo + 1) + " .nfs files found!");
Console.WriteLine("Joining .nfs files...");
Console.WriteLine();
for (int i = 0; i <= nfsNo; i++)
{
Console.WriteLine("Processing hif_" + String.Format("{0:D6}", i) + ".nfs...");
var nfsTemp = new BinaryReader(File.OpenRead(nfsDir + "\\hif_" + String.Format("{0:D6}", i) + ".nfs"));
if (i == 0)
{
nfsTemp.ReadBytes(HEADER_SIZE);
nfs.Write(nfsTemp.ReadBytes((int)nfsTemp.BaseStream.Length - HEADER_SIZE));
}
else nfs.Write(nfsTemp.ReadBytes((int)nfsTemp.BaseStream.Length));
}
}
}
public static void splitNFSFile(string inFile)
{
using (var nfs = new BinaryReader(File.OpenRead(inFile)))
{
Console.WriteLine();
long size = nfs.BaseStream.Length;
int i=0;
do
{
Console.WriteLine("Building hif_" + String.Format("{0:D6}", i) + ".nfs...");
var nfsTemp = new BinaryWriter(File.OpenWrite(Directory.GetCurrentDirectory() + "\\hif_" + String.Format("{0:D6}", i) + ".nfs"));
nfsTemp.Write(nfs.ReadBytes(size > NFS_SIZE ? NFS_SIZE : (int)size));
size -= NFS_SIZE;
i++;
} while (size > 0);
}
}
public static byte[] getHeader(string inFile)
{
using (var file = new BinaryReader(File.OpenRead(inFile)))
{
return file.ReadBytes(0x200);
}
}
public static long[] manipulateISO(string InFile, string OutFile, bool enc)
{
using (var er = new BinaryReader(File.OpenRead(InFile)))
using (var ew = new BinaryWriter(File.OpenWrite(OutFile)))
{
long[] sizeInfo = new long[2];
Console.WriteLine();
Console.WriteLine("Read partition table...");
Console.WriteLine();
ew.Write(er.ReadBytes(0x40000));
byte[] partitionTable = er.ReadBytes(0x20);
ew.Write(partitionTable);
int[,] partitionInfo = new int[2,4]; //first coorfinate number of partitions, second offset of partition table
for (byte i = 0; i < 4; i++)
{
partitionInfo[0,i] = partitionTable[0x0 + 0x8*i] * 0x1000000 + partitionTable[0x1 + 0x8*i] * 0x10000 + partitionTable[0x2 + 0x8*i] * 0x100 + partitionTable[0x3 + 0x8*i];
Console.WriteLine("Number of " + (i+1) + ". partitions: " + partitionInfo[0,i]);
if (partitionInfo[0, i] == 0)
partitionInfo[1, i] = 0;
else partitionInfo[1,i] = (partitionTable[0x4 + 0x8*i] * 0x1000000 + partitionTable[0x5 + 0x8*i] * 0x10000 + partitionTable[0x6 + 0x8*i] * 0x100 + partitionTable[0x7 + 0x8*i]) * 0x4;
Console.WriteLine("Partition info table offset: 0x" + Convert.ToString(partitionInfo[1,i], 16));
}
Console.WriteLine();
partitionInfo = sort(partitionInfo, 4);
byte[][] partitionInfoTable = new byte[4][];
List<int> partitionOffsetList = new List<int>();
long curPos = 0x40020;
int k = 0;
for (int i = 0; i < 4; i++)
{
if (partitionInfo[0, i] != 0)
{
ew.Write(er.ReadBytes((int)(partitionInfo[1, i] - curPos)));
curPos += (partitionInfo[1, i] - curPos);
partitionInfoTable[i] = er.ReadBytes(0x8 * partitionInfo[0, i]);
curPos += (0x8 * partitionInfo[0, i]);
for (int j = 0; j < partitionInfo[0, i]; j++)
if (partitionInfoTable[i][0x7 + 0x8 * j] == 0) //check if game partition
{
partitionOffsetList.Add((partitionInfoTable[i][0x0 + 0x8 * j] * 0x1000000 + partitionInfoTable[i][0x1 + 0x8 * j] * 0x10000 + partitionInfoTable[i][0x2 + 0x8 * j] * 0x100 + partitionInfoTable[i][0x3 + 0x8 * j]) * 0x4);
Console.WriteLine("Data partition at offset: 0x" + Convert.ToString(partitionOffsetList[k], 16));
k++;
}
ew.Write(partitionInfoTable[i]);
}
}
Console.WriteLine();
int[] partitionOffsets = partitionOffsetList.ToArray();
partitionOffsets = sort(partitionOffsets, partitionOffsets.Length);
sizeInfo[0] = partitionOffsets[0];
byte[] IV = new byte[0x10];
int timer = 0;
int l = 0;
for (int i = 0; i < partitionOffsets.Length; i++)
{
ew.Write(er.ReadBytes((int)(partitionOffsets[i] - curPos)));
curPos += (partitionOffsets[i] - curPos);
ew.Write(er.ReadBytes(0x1BF)); //Write start of partiton
byte[] enc_titlekey = er.ReadBytes(0x10); //read encrypted titlekey
ew.Write(enc_titlekey); //Write encrypted titlekey
ew.Write(er.ReadBytes(0xD)); //Write bytes till titleID
byte[] titleID = er.ReadBytes(0x8); //read titleID
ew.Write(titleID);
for (int j = 0; j < 0x10; j++) //build IV
if (j < 8)
IV[j] = titleID[j];
else IV[j] = 0x0;
ew.Write(er.ReadBytes(0xC0)); //Write bytes till end of ticket
byte[] partitionHeader = er.ReadBytes(0x1FD5C);
long partitionSize = (long)0x4 * (partitionHeader[0x18] * 0x1000000 + partitionHeader[0x19] * 0x10000 + partitionHeader[0x1A] * 0x100 + partitionHeader[0x1B]);
Console.WriteLine("Partition size: 0x" + Convert.ToString(partitionSize, 16));
ew.Write(partitionHeader); //Write bytes till start of partition data
curPos += 0x20000;
curPos += partitionSize;
byte[] titlekey = aes_128_cbc(WII_COMMON_KEY, IV, enc_titlekey, false);
Console.WriteLine("Write game partition " + i + "...");
byte[] Sector = new byte[SECTOR_SIZE];
while (partitionSize >= SECTOR_SIZE)
{
if (timer == 8000)
{
timer = 0;
l++;
Console.WriteLine((l * 256) + " MB processed...");
}
timer++;
ew.Write(er.ReadBytes(0x3D0));
IV = er.ReadBytes(0x10);
ew.Write(IV);
ew.Write(er.ReadBytes(0x20));
Sector = er.ReadBytes(SECTOR_SIZE - 0x400);
Sector = aes_128_cbc(titlekey, IV, Sector, enc);
ew.Write(Sector);
partitionSize -= SECTOR_SIZE;
}
sizeInfo[1] = curPos - sizeInfo[0];
if (partitionSize != 0)
Console.WriteLine("Last cluster was not complete. This may be a problem.");
}
if (enc)
{
Console.WriteLine();
Console.WriteLine("Writing zeros...");
long rest;
if (curPos > 0x118240000)
rest = 0x1FB4E0000 - curPos;
else rest = 0x118240000 - curPos;
l = 0;
timer = 0;
while (rest > 0)
{
if (timer == 8000)
{
timer = 0;
l++;
Console.WriteLine((l * 256) + " MB processed...");
}
timer++;
ew.Write(buildZero(rest > SECTOR_SIZE ? SECTOR_SIZE : (int)rest));
rest -= SECTOR_SIZE;
}
return null;
}
else return sizeInfo;
}
}
public static void unpackNFS(string InFile, string OutFile, byte[] header)
{
using (var er = new BinaryReader(File.OpenRead(InFile)))
using (var ew = new BinaryWriter(File.OpenWrite(OutFile)))
{
Console.WriteLine();
Console.WriteLine("Unpacking nfs...");
Console.WriteLine();
int numberOfParts = 0x1000000 * header[0x10] + 0x10000 * header[0x11] + 0x100 * header[0x12] + header[0x13];
Console.WriteLine(numberOfParts + " parts found...");
int start, length;
int pos = 0x0;
int j = 0;
for (int i = 0; i < numberOfParts; i++)
{
start = SECTOR_SIZE * (0x1000000 * header[0x14 + i * 0x8] + 0x10000 * header[0x15 + i * 0x8] + 0x100 * header[0x16 + i * 0x8] + header[0x17 + i * 0x8]);
length = SECTOR_SIZE * (0x1000000 * header[0x18 + i * 0x8] + 0x10000 * header[0x19 + i * 0x8] + 0x100 * header[0x1A + i * 0x8] + header[0x1B + i * 0x8]);
j = start - pos;
Console.WriteLine("Writing zero segment " + i + " of size 0x" + Convert.ToString(j, 16));
while (j > 0)
{
ew.Write(buildZero(SECTOR_SIZE));
j -= SECTOR_SIZE;
}
Console.WriteLine("Writing data segment " + i + " of size 0x" + Convert.ToString(length, 16));
j = length;
while (j > 0)
{
ew.Write(er.ReadBytes(SECTOR_SIZE));
j -= SECTOR_SIZE;
}
pos = start + length;
}
}
}
public static byte[] packNFS(string InFile, string OutFile, long[] sizeInfo)
{
using (var er = new BinaryReader(File.OpenRead(InFile)))
using (var ew = new BinaryWriter(File.OpenWrite(OutFile)))
{
Console.WriteLine();
Console.WriteLine("Generating EGGS header...");
byte[] header = new byte[0x200];
for (int i = 0; i < 0x200; i++)
header[i] = 0xff;
header[0x0]=0x45;
header[0x1]=0x47;
header[0x2]=0x47;
header[0x3]=0x53;
header[0x4]=0x00;
header[0x5]=0x01;
header[0x6]=0x10;
header[0x7]=0x11;
header[0x8]=0x00;
header[0x9]=0x00;
header[0xA]=0x00;
header[0xB]=0x00;
header[0xC]=0x00;
header[0xD]=0x00;
header[0xE]=0x00;
header[0xF]=0x00;
header[0x10]=0x00;
header[0x11]=0x00;
header[0x12]=0x00;
header[0x13]=0x03;
header[0x14]=0x00;
header[0x15]=0x00;
header[0x16]=0x00;
header[0x17]=0x00;
header[0x18]=0x00;
header[0x19]=0x00;
header[0x1A]=0x00;
header[0x1B]=0x01;
header[0x1C]=0x00;
header[0x1D]=0x00;
header[0x1E]=0x00;
header[0x1F]=0x08;
header[0x20] = 0x00;
header[0x21] = 0x00;
header[0x22] = 0x00;
header[0x23] = 0x02;
header[0x24] = (byte)((sizeInfo[0] / 0x8000) / 0x1000000);
header[0x25] = (byte)(((sizeInfo[0] / 0x8000) / 0x10000) % 0x100);
header[0x26] = (byte)(((sizeInfo[0] / 0x8000) / 0x100) % 0x10000);
header[0x27] = (byte)((sizeInfo[0] / 0x8000) % 0x1000000);
header[0x28] = (byte)((sizeInfo[1] / 0x8000) / 0x1000000);
header[0x29] = (byte)(((sizeInfo[1] / 0x8000) / 0x10000) % 0x100);
header[0x2A] = (byte)(((sizeInfo[1] / 0x8000) / 0x100) % 0x10000);
header[0x2B] = (byte)((sizeInfo[1] / 0x8000) % 0x1000000);
header[0x1FC] = 0x53;
header[0x1FD] = 0x47;
header[0x1FE] = 0x47;
header[0x1FF] = 0x45;
Console.WriteLine("Packing nfs...");
int numberOfParts = 0x1000000 * header[0x10] + 0x10000 * header[0x11] + 0x100 * header[0x12] + header[0x13];
Console.WriteLine("Packing " + numberOfParts + " parts...");
int start, length;
int pos = 0x0;
int j = 0;
for (int i = 0; i < numberOfParts; i++)
{
start = SECTOR_SIZE * (0x1000000 * header[0x14 + i * 0x8] + 0x10000 * header[0x15 + i * 0x8] + 0x100 * header[0x16 + i * 0x8] + header[0x17 + i * 0x8]);
length = SECTOR_SIZE * (0x1000000 * header[0x18 + i * 0x8] + 0x10000 * header[0x19 + i * 0x8] + 0x100 * header[0x1A + i * 0x8] + header[0x1B + i * 0x8]);
j = start - pos;
Console.WriteLine("Delete zero segment " + i + " of size 0x" + Convert.ToString(j, 16));
while (j > 0)
{
er.ReadBytes(SECTOR_SIZE);
j -= SECTOR_SIZE;
}
Console.WriteLine("Writing data segment " + i + " of size 0x" + Convert.ToString(length, 16));
j = length;
while (j > 0)
{
ew.Write(er.ReadBytes(SECTOR_SIZE));
j -= SECTOR_SIZE;
}
pos = start + length;
}
return header;
}
}
public static void EnDecryptNFS(string InFile, string OutFile, byte[] key, byte[] iv, bool enc, byte[] header)
{
using (var er = new BinaryReader(File.OpenRead(InFile)))
using (var ew = new BinaryWriter(File.OpenWrite(OutFile)))
{
Console.WriteLine();
if (enc)
{
Console.WriteLine("Writing EGGS header...");
ew.Write(header);
Console.WriteLine("Encrypting hif.nfs...");
}
else
Console.WriteLine("Decrypting hif.nfs...");
Console.WriteLine();
byte[] Sector = new byte[SECTOR_SIZE];
int timer = 0;
int i = 0;
//init size
long leftSize = er.BaseStream.Length;
do
{
if (timer == 8000)
{
timer = 0;
i++;
Console.WriteLine((i * 256) + " MB processed...");
}
timer++;
Sector = er.ReadBytes(leftSize > SECTOR_SIZE ? SECTOR_SIZE : (int)leftSize);
if (enc)
Sector = aes_128_cbc(key, iv, Sector, true);
else
Sector = aes_128_cbc(key, iv, Sector, false);
//write it to outfile
ew.Write(Sector);
//decrease remaining size
leftSize -= SECTOR_SIZE;
//loop till end of file
} while (leftSize > 0);
}
}
public static byte[] aes_128_cbc(byte[] key, byte[] iv, byte[] data, bool enc)
{
byte[] result = new byte[data.Length];
try
{
System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged();
rm.Mode = System.Security.Cryptography.CipherMode.CBC;
rm.Padding = System.Security.Cryptography.PaddingMode.None;
rm.KeySize = 128;
rm.BlockSize = 128;
rm.Key = key;
rm.IV = iv;
if (enc)
using (System.Security.Cryptography.ICryptoTransform itc = rm.CreateEncryptor())
{
result = itc.TransformFinalBlock(data, 0, data.Length);
}
else
using (System.Security.Cryptography.ICryptoTransform itc = rm.CreateDecryptor())
{
result = itc.TransformFinalBlock(data, 0, data.Length);
}
rm.Clear();
return result;
}
catch (System.Security.Cryptography.CryptographicException e)
{
Console.WriteLine("A Cryptographic error occurred: {0}", e.Message);
return null;
}
}
public static int[,] sort(int[,] list, int size)
{
int max = 0;
int maxIndex = 0;
int temp;
for (int j = 0; j < size; j++)
{
for (int i = 0; i < size-j; i++)
if (list[1,i] > max)
{
max = list[1,i];
maxIndex = i;
}
temp = list[0, size - j - 1];
list[0, size - j - 1] = list[0, maxIndex];
list[0, maxIndex] = temp;
temp = list[1, size - j - 1];
list[1, size - j - 1] = list[1, maxIndex];
list[1, maxIndex] = temp;
}
return list;
}
public static int[] sort(int[] list, int size)
{
int max = 0;
int maxIndex = 0;
int temp;
for (int j = 0; j < size; j++)
{
for (int i = 0; i < size - j; i++)
if (list[i] > max)
{
max = list[i];
maxIndex = i;
}
temp = list[size - j - 1];
list[size - j - 1] = list[maxIndex];
list[maxIndex] = temp;
}
return list;
}
}
}
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