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First dotnet binding commit

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This commit is contained in:
Antonio Parata
2015-10-14 10:55:50 +02:00
parent 06f1908873
commit 7a105c495b
17 changed files with 3418 additions and 0 deletions
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bindings/dotnet/UnicornTests/Program.cs Normal file
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/*
.NET bindings for the UnicornEngine Emulator Engine
Copyright(c) 2015 Antonio Parata
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
This program 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
using System;
using System.Collections.Generic;
using System.Text;
using UnicornEngine;
using UnicornEngine.Const;
namespace UnicornTests
{
class Program
{
private const Int64 ADDRESS = 0x1000000;
private static Int32[] X86_CODE32_SELF =
{
-21, 28, 90, -119, -42, -117, 2, 102, 61, -54, 125, 117, 6, 102, 5, 3, 3, -119, 2, -2, -62, 61, 65, 65,
65, 65, 117, -23, -1, -26, -24, -33, -1, -1, -1, 49, -46, 106, 11, 88, -103, 82, 104, 47, 47, 115, 104,
104, 47, 98, 105, 110, -119, -29, 82, 83, -119, -31, -54, 125, 65, 65, 65, 65, 65, 65, 65, 65
};
private static UInt64 ToInt(Byte[] val)
{
UInt64 res = 0;
for (var i = 0; i < val.Length; i++)
{
var v = val[i] & 0xFF;
res += (UInt64)(v << (i * 8));
}
return res;
}
private static void CheckError(Int32 err)
{
if (err != Common.UC_ERR_OK)
{
throw new ApplicationException("Operation failed, error: " + UcError.toErrorDesc(err));
}
}
private static Byte[] Int64ToBytes(Int64 intVal)
{
var res = new Byte[8];
for (var i = 0; i < res.Length; i++)
{
res[i] = (Byte)(intVal & 0xff);
intVal = (Int64)((UInt64)intVal >> 8);
}
return res;
}
private static Byte[] ToBytes(IEnumerable<int> ints)
{
var bytes = new List<Byte>();
foreach (var i in ints)
{
var b = (Byte) i;
bytes.Add(b);
}
return bytes.ToArray();
}
private static void CodeHookCallback(Unicorn u, UInt64 addr, Int32 size, Object userData)
{
Console.Write("Tracing >>> 0x{0} ", addr.ToString("X"));
var eipBuffer = new Byte[4];
CheckError(u.RegRead(X86.UC_X86_REG_EIP, eipBuffer));
var effectiveSize = Math.Min(16, size);
var tmp = new Byte[effectiveSize];
CheckError(u.MemRead(addr, tmp));
foreach (var t in tmp)
{
Console.Write("{0} ", (0xFF & t).ToString("X"));
}
Console.WriteLine();
}
private static void InterruptHookCallback(Unicorn u, Int32 intNumber, Object userData)
{
// only handle Linux syscall
if (intNumber != 0x80)
{
return;
}
var eaxBuffer = new Byte[4];
var eipBuffer = new Byte[4];
CheckError(u.RegRead(X86.UC_X86_REG_EAX, eaxBuffer));
CheckError(u.RegRead(X86.UC_X86_REG_EIP, eipBuffer));
var eax = ToInt(eaxBuffer);
var eip = ToInt(eipBuffer);
switch (eax)
{
default:
Console.WriteLine("Interrupt >>> 0x{0} num {1}, EAX=0x{2}", eip.ToString("X"), intNumber.ToString("X"), eax.ToString("X"));
break;
case 1: // sys_exit
Console.WriteLine("Interrupt >>> 0x{0} num {1}, SYS_EXIT", eip.ToString("X"), intNumber.ToString("X"));
u.EmuStop();
break;
case 4: // sys_write
// ECX = buffer address
var ecxBuffer = new Byte[4];
// EDX = buffer size
var edxBuffer = new Byte[4];
CheckError(u.RegRead(X86.UC_X86_REG_ECX, ecxBuffer));
CheckError(u.RegRead(X86.UC_X86_REG_EDX, edxBuffer));
var ecx = ToInt(ecxBuffer);
var edx = ToInt(edxBuffer);
// read the buffer in
var size = Math.Min(256, edx);
var buffer = new Byte[size];
CheckError(u.MemRead(ecx, buffer));
var content = Encoding.Default.GetString(buffer);
Console.WriteLine(
"Interrupt >>> 0x{0}: num {1}, SYS_WRITE. buffer = 0x{2}, size = , content = '{3}'",
eip.ToString("X"),
ecx.ToString("X"),
edx.ToString("X"),
content);
break;
}
}
static unsafe void Main(String[] args)
{
var u = new Unicorn((UInt32)Common.UC_ARCH_X86, (UInt32)Common.UC_MODE_32);
Console.WriteLine("Unicorn version: {0}", u.Version());
// map 2MB of memory for this emulation
CheckError(u.MemMap(ADDRESS, new UIntPtr(2 * 1024 * 1024), Common.UC_PROT_ALL));
// write machine code to be emulated to memory
CheckError(u.MemWrite(ADDRESS, ToBytes(X86_CODE32_SELF)));
// initialize machine registers
CheckError(u.RegWrite(X86.UC_X86_REG_ESP, Int64ToBytes(ADDRESS + 0x200000)));
// tracing all instructions by having @begin > @end
CheckError(u.AddCodeHook(CodeHookCallback, null, 1, 0).Item1);
// handle interrupt ourself
CheckError(u.AddInterruptHook(InterruptHookCallback, null).Item1);
Console.WriteLine();
Console.WriteLine(">>> Start tracing linux code");
// emulate machine code in infinite time
u.EmuStart(ADDRESS, (UInt64)(ADDRESS + X86_CODE32_SELF.Length), 0u, new UIntPtr(0));
Console.WriteLine();
Console.WriteLine(">>> Emulation Done!");
}
}
}