Union/UnionPatcher
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This commit is contained in:
Jake 2022-02-20 16:41:09 +00:00
commit 8e267a9cd2
3 changed files with 71 additions and 71 deletions
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24
UnionPatcher.Gui/MainForm.cs
View file

@ -71,20 +71,20 @@ namespace LBPUnion.UnionPatcher.Gui {
ElfFile eboot = new(this.filePicker.FilePath); ElfFile eboot = new(this.filePicker.FilePath);
if(eboot.IsValid == false) { if(eboot.IsValid == false) {
this.CreateOkDialog("Eboot Error", $"{eboot.Name} is not a valid ELF file (magic number mismatch)").ShowModal(); this.CreateOkDialog("Eboot Error", $"{eboot.Name} is not a valid ELF file (magic number mismatch)").ShowModal();
return; return;
} }
if(eboot.Is64Bit == null) { if(eboot.Is64Bit == null) {
this.CreateOkDialog("Eboot Error", $"{eboot.Name} does not target a valid system").ShowModal(); this.CreateOkDialog("Eboot Error", $"{eboot.Name} does not target a valid system").ShowModal();
return; return;
} }
if(string.IsNullOrWhiteSpace(eboot.Architecture)) { if(string.IsNullOrWhiteSpace(eboot.Architecture)) {
this.CreateOkDialog("Eboot Error", $"{eboot.Name} does not target a valid architecture (PowerPC or ARM)").ShowModal(); this.CreateOkDialog("Eboot Error", $"{eboot.Name} does not target a valid architecture (PowerPC or ARM)").ShowModal();
return; return;
} }
try { try {
Patcher.PatchFile(this.filePicker.FilePath, this.serverUrl.Text, this.outputFileName.FilePath); Patcher.PatchFile(this.filePicker.FilePath, this.serverUrl.Text, this.outputFileName.FilePath);

94
UnionPatcher/ElfFile.cs
View file

@ -9,66 +9,66 @@ Wikipedia entry on ELF: https://en.wikipedia.org/wiki/Executable_and_Linkable_Fo
*/ */
namespace LBPUnion.UnionPatcher { namespace LBPUnion.UnionPatcher {
public class ElfFile { public class ElfFile {
private enum WordSize : byte { private enum WordSize : byte {
ThirtyTwoBits = 0x01, ThirtyTwoBits = 0x01,
SixtyFourBits = 0x02 SixtyFourBits = 0x02
} }
private enum Endianness : byte { private enum Endianness : byte {
Little = 0x01, Little = 0x01,
Big = 0x02 Big = 0x02
} }
private enum InstructionSetArchitecture : UInt16 { private enum InstructionSetArchitecture : UInt16 {
PowerPC = 0x15, //64-bit PowerPC (PS3) PowerPC = 0x15, //64-bit PowerPC (PS3)
ARM = 0x28 //32-bit ARM (Vita) ARM = 0x28 //32-bit ARM (Vita)
} }
public string Name { get; } = "Binary Blob"; public string Name { get; } = "Binary Blob";
public bool IsValid { get; } public bool IsValid { get; }
public bool? Is64Bit { get; } = null; public bool? Is64Bit { get; } = null;
public bool? IsBigEndian { get; } = null; public bool? IsBigEndian { get; } = null;
public string Architecture { get; } = null; public string Architecture { get; } = null;
public byte[] Contents { get; } = null; public byte[] Contents { get; } = null;
public ElfFile(byte[] fileContents) { public ElfFile(byte[] fileContents) {
IsValid = fileContents[0x00..0x04].SequenceEqual(new byte[] {0x7F, (byte)'E', (byte)'L', (byte)'F'}); IsValid = fileContents[0x00..0x04].SequenceEqual(new byte[] {0x7F, (byte)'E', (byte)'L', (byte)'F'});
if(IsValid == false) return; if(IsValid == false) return;
byte identClassValue = fileContents[0x04]; byte identClassValue = fileContents[0x04];
byte identDataValue = fileContents[0x05]; byte identDataValue = fileContents[0x05];
if(identClassValue == (byte)WordSize.ThirtyTwoBits || identClassValue == (byte)WordSize.SixtyFourBits) if(identClassValue == (byte)WordSize.ThirtyTwoBits || identClassValue == (byte)WordSize.SixtyFourBits)
Is64Bit = identClassValue == (byte)WordSize.SixtyFourBits; Is64Bit = identClassValue == (byte)WordSize.SixtyFourBits;
if(identDataValue == (byte)Endianness.Little || identDataValue == (byte)Endianness.Big) if(identDataValue == (byte)Endianness.Little || identDataValue == (byte)Endianness.Big)
IsBigEndian = identDataValue == (byte)Endianness.Big; IsBigEndian = identDataValue == (byte)Endianness.Big;
Architecture = GetFileArchitecture(fileContents, IsBigEndian == true); Architecture = GetFileArchitecture(fileContents, IsBigEndian == true);
Contents = fileContents; Contents = fileContents;
} }
public ElfFile(FileInfo file) : this(File.ReadAllBytes(file.FullName)) { public ElfFile(FileInfo file) : this(File.ReadAllBytes(file.FullName)) {
Name = file.Name; Name = file.Name;
} }
public ElfFile(string fileName) : this(new FileInfo(fileName)) {} public ElfFile(string fileName) : this(new FileInfo(fileName)) {}
private string GetFileArchitecture(byte[] elfHeader, bool isBigEndian) { private string GetFileArchitecture(byte[] elfHeader, bool isBigEndian) {
byte[] architectureBytes = elfHeader[0x12..0x14]; byte[] architectureBytes = elfHeader[0x12..0x14];
UInt16 fileArch = (isBigEndian) ? UInt16 fileArch = (isBigEndian) ?
BinaryPrimitives.ReadUInt16BigEndian(architectureBytes) : BinaryPrimitives.ReadUInt16BigEndian(architectureBytes) :
BinaryPrimitives.ReadUInt16LittleEndian(architectureBytes); BinaryPrimitives.ReadUInt16LittleEndian(architectureBytes);
foreach(InstructionSetArchitecture arch in Enum.GetValues(typeof(InstructionSetArchitecture))) { foreach(InstructionSetArchitecture arch in Enum.GetValues(typeof(InstructionSetArchitecture))) {
if(fileArch == (UInt16)arch) if(fileArch == (UInt16)arch)
return arch.ToString(); return arch.ToString();
} }
return null; return null;
} }
} }
} }

24
UnionPatcher/Program.cs
View file

@ -25,21 +25,21 @@ namespace LBPUnion.UnionPatcher {
ElfFile eboot = new(new FileInfo(args[0])); ElfFile eboot = new(new FileInfo(args[0]));
if(eboot.IsValid == false) { if(eboot.IsValid == false) {
Console.WriteLine($"{eboot.Name} is not a valid ELF file (magic number mismatch)"); Console.WriteLine($"{eboot.Name} is not a valid ELF file (magic number mismatch)");
return; return;
} }
if(eboot.Is64Bit == null) { if(eboot.Is64Bit == null) {
Console.WriteLine($"{eboot.Name} does not target a valid system"); Console.WriteLine($"{eboot.Name} does not target a valid system");
return; return;
} }
if(string.IsNullOrWhiteSpace(eboot.Architecture)) { if(string.IsNullOrWhiteSpace(eboot.Architecture)) {
Console.WriteLine($"{eboot.Name} does not target a valid architecture (PowerPC or ARM)"); Console.WriteLine($"{eboot.Name} does not target a valid architecture (PowerPC or ARM)");
return; return;
} }
Console.WriteLine($"{eboot.Name} targets {eboot.Architecture}"); Console.WriteLine($"{eboot.Name} targets {eboot.Architecture}");
Patcher.PatchFile(args[0], args[1], args[2]); Patcher.PatchFile(args[0], args[1], args[2]);
Console.WriteLine($"Successfully patched Server URL to {args[1]}."); Console.WriteLine($"Successfully patched Server URL to {args[1]}.");