mirror of
https://github.com/WiiDatabase/nusdownloader.git
synced 2024-12-25 18:11:51 +01:00
314 lines
11 KiB
C#
314 lines
11 KiB
C#
/* This file is part of libWiiSharp
|
|
* Copyright (C) 2009 Leathl
|
|
*
|
|
* libWiiSharp is free software: you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as published
|
|
* by the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* libWiiSharp is distributed in the hope that it will be
|
|
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
//Patches based on Dop-Mii - Thanks to Arikado and Lunatik
|
|
|
|
using System;
|
|
using System.ComponentModel;
|
|
using System.Text;
|
|
|
|
namespace libWiiSharp
|
|
{
|
|
/// <summary>
|
|
/// An IOS patcher which can patch fakesigning, es_identify and nand permissions.
|
|
/// </summary>
|
|
public class IosPatcher
|
|
{
|
|
private WAD wadFile;
|
|
private int esIndex = -1;
|
|
|
|
#region Public Functions
|
|
/// <summary>
|
|
/// Loads an IOS wad to patch the es module.
|
|
/// </summary>
|
|
/// <param name="iosWad"></param>
|
|
public void LoadIOS(ref WAD iosWad)
|
|
{
|
|
if ((iosWad.TitleID >> 32) != 1 ||
|
|
(iosWad.TitleID & 0xFFFFFFFF) < 3 ||
|
|
(iosWad.TitleID & 0xFFFFFFFF) > 255)
|
|
throw new Exception("Only IOS WADs can be patched!");
|
|
|
|
wadFile = iosWad;
|
|
getEsIndex();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches fakesigning.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchFakeSigning()
|
|
{
|
|
if (esIndex < 0) return -1;
|
|
return patchFakeSigning(ref wadFile.Contents[esIndex]);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches es_identify.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchEsIdentify()
|
|
{
|
|
if (esIndex < 0) return -1;
|
|
return patchEsIdentify(ref wadFile.Contents[esIndex]);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches nand permissions.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchNandPermissions()
|
|
{
|
|
if (esIndex < 0) return -1;
|
|
return patchNandPermissions(ref wadFile.Contents[esIndex]);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches fakesigning, es_identify and nand permissions.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchAll()
|
|
{
|
|
if (esIndex < 0) return -1;
|
|
return patchAll(ref wadFile.Contents[esIndex]);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches fakesigning.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchFakeSigning(ref byte[] esModule)
|
|
{
|
|
return patchFakeSigning(ref esModule);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches es_identify.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchEsIdentify(ref byte[] esModule)
|
|
{
|
|
return patchEsIdentify(ref esModule);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches nand permissions.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchNandPermissions(ref byte[] esModule)
|
|
{
|
|
return patchNandPermissions(ref esModule);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Patches fakesigning, es_identify and nand permissions.
|
|
/// Returns the number of applied patches.
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
public int PatchAll(ref byte[] esModule)
|
|
{
|
|
return patchAll(ref esModule);
|
|
}
|
|
#endregion
|
|
|
|
#region Private Functions
|
|
private int patchFakeSigning(ref byte[] esModule)
|
|
{
|
|
fireDebug("Patching Fakesigning...");
|
|
int patchCount = 0;
|
|
|
|
byte[] oldHashCheck = { 0x20, 0x07, 0x23, 0xA2 };
|
|
byte[] newHashCheck = { 0x20, 0x07, 0x4B, 0x0B };
|
|
|
|
for (int i = 0; i < esModule.Length - 4; i++)
|
|
{
|
|
fireProgress((i + 1) * 100 / esModule.Length);
|
|
|
|
if (Shared.CompareByteArrays(esModule, i, oldHashCheck, 0, 4) ||
|
|
Shared.CompareByteArrays(esModule, i, newHashCheck, 0, 4))
|
|
{
|
|
fireDebug(" Patching at Offset: 0x{0}", i.ToString("x8").ToUpper());
|
|
esModule[i + 1] = 0x00;
|
|
i += 4;
|
|
patchCount++;
|
|
}
|
|
}
|
|
|
|
fireDebug("Patching Fakesigning Finished... (Patches applied: {0})", patchCount);
|
|
return patchCount;
|
|
}
|
|
|
|
private int patchEsIdentify(ref byte[] esModule)
|
|
{
|
|
fireDebug("Patching ES_Identify...");
|
|
int patchCount = 0;
|
|
|
|
byte[] identifyCheck = { 0x28, 0x03, 0xD1, 0x23 };
|
|
|
|
for (int i = 0; i < esModule.Length - 4; i++)
|
|
{
|
|
fireProgress((i + 1) * 100 / esModule.Length);
|
|
|
|
if (Shared.CompareByteArrays(esModule, i, identifyCheck, 0, 4))
|
|
{
|
|
fireDebug(" Patching at Offset: 0x{0}", i.ToString("x8").ToUpper());
|
|
esModule[i + 2] = 0x00;
|
|
esModule[i + 3] = 0x00;
|
|
i += 4;
|
|
patchCount++;
|
|
}
|
|
}
|
|
|
|
fireDebug("Patching ES_Identify Finished... (Patches applied: {0})", patchCount);
|
|
return patchCount;
|
|
}
|
|
|
|
private int patchNandPermissions(ref byte[] esModule)
|
|
{
|
|
fireDebug("Patching NAND Permissions...");
|
|
int patchCount = 0;
|
|
|
|
byte[] permissionTable = { 0x42, 0x8B, 0xD0, 0x01, 0x25, 0x66 };
|
|
|
|
for (int i = 0; i < esModule.Length - 6; i++)
|
|
{
|
|
fireProgress((i + 1) * 100 / esModule.Length);
|
|
|
|
if (Shared.CompareByteArrays(esModule, i, permissionTable, 0, 6))
|
|
{
|
|
fireDebug(" Patching at Offset: 0x{0}", i.ToString("x8").ToUpper());
|
|
esModule[i + 2] = 0xE0;
|
|
i += 6;
|
|
patchCount++;
|
|
}
|
|
}
|
|
|
|
fireDebug("Patching NAND Permissions Finished... (Patches applied: {0})", patchCount);
|
|
return patchCount;
|
|
}
|
|
|
|
private int patchAll(ref byte[] esModule)
|
|
{
|
|
fireDebug("Patching Fakesigning, ES_Identify and NAND Permissions...");
|
|
int patchCount = 0;
|
|
|
|
byte[] oldHashCheck = { 0x20, 0x07, 0x23, 0xA2 };
|
|
byte[] newHashCheck = { 0x20, 0x07, 0x4B, 0x0B };
|
|
byte[] identifyCheck = { 0x28, 0x03, 0xD1, 0x23 };
|
|
byte[] permissionTable = { 0x42, 0x8B, 0xD0, 0x01, 0x25, 0x66 };
|
|
|
|
for (int i = 0; i < esModule.Length - 6; i++)
|
|
{
|
|
fireProgress((i + 1) * 100 / esModule.Length);
|
|
|
|
if (Shared.CompareByteArrays(esModule, i, oldHashCheck, 0, 4) ||
|
|
Shared.CompareByteArrays(esModule, i, newHashCheck, 0, 4))
|
|
{
|
|
fireDebug(" Patching Fakesigning at Offset: 0x{0}", i.ToString("x8").ToUpper());
|
|
esModule[i + 1] = 0x00;
|
|
i += 4;
|
|
patchCount++;
|
|
}
|
|
else if (Shared.CompareByteArrays(esModule, i, identifyCheck, 0, 4))
|
|
{
|
|
fireDebug(" Patching ES_Identify at Offset: 0x{0}", i.ToString("x8").ToUpper());
|
|
esModule[i + 2] = 0x00;
|
|
esModule[i + 3] = 0x00;
|
|
i += 4;
|
|
patchCount++;
|
|
}
|
|
else if (Shared.CompareByteArrays(esModule, i, permissionTable, 0, 6))
|
|
{
|
|
fireDebug(" Patching NAND Permissions at Offset: 0x{0}", i.ToString("x8").ToUpper());
|
|
esModule[i + 2] = 0xE0;
|
|
i += 6;
|
|
patchCount++;
|
|
}
|
|
}
|
|
|
|
fireDebug("Patching Fakesigning, ES_Identify and NAND Permissions Finished... (Patches applied: {0})", patchCount);
|
|
return patchCount;
|
|
}
|
|
|
|
private void getEsIndex()
|
|
{
|
|
fireDebug("Scanning for ES Module...");
|
|
string iosTag = "$IOSVersion:";
|
|
|
|
for (int i = wadFile.NumOfContents - 1; i >= 0; i--)
|
|
{
|
|
fireDebug(" Scanning Content #{0} of {1}...", i + 1, wadFile.NumOfContents);
|
|
fireProgress((i + 1) * 100 / wadFile.NumOfContents);
|
|
|
|
for (int j = 0; j < wadFile.Contents[i].Length - 64; j++)
|
|
{
|
|
if (ASCIIEncoding.ASCII.GetString(wadFile.Contents[i], j, 12) == iosTag)
|
|
{
|
|
int curIndex = j + 12;
|
|
while (wadFile.Contents[i][curIndex] == ' ') { curIndex++; }
|
|
|
|
if (ASCIIEncoding.ASCII.GetString(wadFile.Contents[i], curIndex, 3) == "ES:")
|
|
{
|
|
fireDebug(" -> ES Module found!");
|
|
fireDebug("Scanning for ES Module Finished...");
|
|
esIndex = i;
|
|
fireProgress(100);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fireDebug(@"/!\/!\/!\ ES Module wasn't found! /!\/!\/!\");
|
|
throw new Exception("ES module wasn't found!");
|
|
}
|
|
#endregion
|
|
|
|
#region Events
|
|
/// <summary>
|
|
/// Fires the Progress of various operations
|
|
/// </summary>
|
|
public event EventHandler<ProgressChangedEventArgs> Progress;
|
|
/// <summary>
|
|
/// Fires debugging messages. You may write them into a log file or log textbox.
|
|
/// </summary>
|
|
public event EventHandler<MessageEventArgs> Debug;
|
|
|
|
private void fireDebug(string debugMessage, params object[] args)
|
|
{
|
|
EventHandler<MessageEventArgs> debug = Debug;
|
|
if (debug != null)
|
|
debug(new object(), new MessageEventArgs(string.Format(debugMessage, args)));
|
|
}
|
|
|
|
private void fireProgress(int progressPercentage)
|
|
{
|
|
EventHandler<ProgressChangedEventArgs> progress = Progress;
|
|
if (progress != null)
|
|
progress(new object(), new ProgressChangedEventArgs(progressPercentage, string.Empty));
|
|
}
|
|
#endregion
|
|
}
|
|
}
|