Ejemplo n.º 1
0
        static ImageLoadConfigDirectory32()
        {
            int n = 0;

            s_fields     = new ImageFieldData[25];
            s_fields[0]  = new ImageFieldData(0, "Size", Type.INT32, 1);
            s_fields[1]  = new ImageFieldData(ShiftOffset(s_fields, n++), "TimeDateStamp", Type.UINT32, 1);
            s_fields[2]  = new ImageFieldData(ShiftOffset(s_fields, n++), "MajorVersion", Type.UINT16, 1);
            s_fields[3]  = new ImageFieldData(ShiftOffset(s_fields, n++), "MinorVersion", Type.UINT16, 1);
            s_fields[4]  = new ImageFieldData(ShiftOffset(s_fields, n++), "GlobalFlagsClear", Type.UINT32, 1);
            s_fields[5]  = new ImageFieldData(ShiftOffset(s_fields, n++), "GlobalFlagsSet", Type.UINT32, 1);
            s_fields[6]  = new ImageFieldData(ShiftOffset(s_fields, n++), "CriticalSectionDefaultTimeout", Type.UINT32, 1);
            s_fields[7]  = new ImageFieldData(ShiftOffset(s_fields, n++), "DeCommitFreeBlockThreshold", Type.UINT32, 1);
            s_fields[8]  = new ImageFieldData(ShiftOffset(s_fields, n++), "DeCommitTotalFreeThreshold", Type.UINT32, 1);
            s_fields[9]  = new ImageFieldData(ShiftOffset(s_fields, n++), "LockPrefixTable", Type.UINT32, 1);
            s_fields[10] = new ImageFieldData(ShiftOffset(s_fields, n++), "MaximumAllocationSize", Type.UINT32, 1);
            s_fields[11] = new ImageFieldData(ShiftOffset(s_fields, n++), "VirtualMemoryThreshold", Type.UINT32, 1);
            s_fields[12] = new ImageFieldData(ShiftOffset(s_fields, n++), "ProcessHeapFlags", Type.UINT32, 1);
            s_fields[13] = new ImageFieldData(ShiftOffset(s_fields, n++), "ProcessAffinityMask", Type.UINT32, 1);
            s_fields[14] = new ImageFieldData(ShiftOffset(s_fields, n++), "CSDVersion", Type.UINT16, 1);
            s_fields[15] = new ImageFieldData(ShiftOffset(s_fields, n++), "Reserved1", Type.UINT16, 1);
            s_fields[16] = new ImageFieldData(ShiftOffset(s_fields, n++), "EditList", Type.UINT32, 1);
            s_fields[17] = new ImageFieldData(ShiftOffset(s_fields, n++), "SecurityCookie", Type.UINT32, 1);
            s_fields[18] = new ImageFieldData(ShiftOffset(s_fields, n++), "SEHandlerTable", Type.UINT32, 1);
            s_fields[19] = new ImageFieldData(ShiftOffset(s_fields, n++), "SEHandlerCount", Type.UINT32, 1);
            s_fields[20] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardCFCheckFunctionPointer", Type.UINT32, 1);
            s_fields[21] = new ImageFieldData(ShiftOffset(s_fields, n++), "Reserved2", Type.UINT32, 1);
            s_fields[22] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardCFFunctionTable", Type.UINT32, 1);
            s_fields[23] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardCFFunctionCount", Type.UINT32, 1);
            s_fields[24] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardFlags", Type.UINT32, 1);
        }
Ejemplo n.º 2
0
        public static object SafePointerToType(this SafePointer sp, ImageFieldData fi)
        {
            object res = null;

            switch (fi.Type)
            {
                case Type.BYTE: res = (byte)sp; break;
                case Type.SBYTE: res = (sbyte)(byte)sp; break;
                case Type.UINT16: res = (UInt16)sp; break;
                case Type.INT16: res = (Int16)(UInt16)sp; break;
                case Type.UINT32: res = (UInt32)sp; break;
                case Type.UINT64: res = (UInt64)sp; break;
                case Type.INT32: res = (Int32)(UInt32)sp; break;
                case Type.INT64: res = (Int64)(UInt64)sp; break;
                case Type.POINTER: res = new SafePointer(sp._array, sp._stream, (Int32)(UInt32)sp); break;
                case Type.HEADER: res = fi.Header.Create(fi.ParentHeader, sp); break;
                case Type.NATIVEINT:
                    PEHeader ioh = fi.ParentHeader;
                    if ((ioh != null) && (ioh.Magic == PEMagic.PE32Plus))
                        res = (UInt64)sp;
                    else
                        res = (UInt32)sp;
                    break;
                default: throw new Exception("Unknown type");
            }
            return res;
        }
Ejemplo n.º 3
0
 static ImageLoadConfigDirectory32()
 {
     int n = 0;
     s_fields = new ImageFieldData[25];
     s_fields[0] = new ImageFieldData(0, "Size", Type.INT32, 1);
     s_fields[1] = new ImageFieldData(ShiftOffset(s_fields, n++), "TimeDateStamp", Type.UINT32, 1);
     s_fields[2] = new ImageFieldData(ShiftOffset(s_fields, n++), "MajorVersion", Type.UINT16, 1);
     s_fields[3] = new ImageFieldData(ShiftOffset(s_fields, n++), "MinorVersion", Type.UINT16, 1);
     s_fields[4] = new ImageFieldData(ShiftOffset(s_fields, n++), "GlobalFlagsClear", Type.UINT32, 1);
     s_fields[5] = new ImageFieldData(ShiftOffset(s_fields, n++), "GlobalFlagsSet", Type.UINT32, 1);
     s_fields[6] = new ImageFieldData(ShiftOffset(s_fields, n++), "CriticalSectionDefaultTimeout", Type.UINT32, 1);
     s_fields[7] = new ImageFieldData(ShiftOffset(s_fields, n++), "DeCommitFreeBlockThreshold", Type.UINT32, 1);
     s_fields[8] = new ImageFieldData(ShiftOffset(s_fields, n++), "DeCommitTotalFreeThreshold", Type.UINT32, 1);
     s_fields[9] = new ImageFieldData(ShiftOffset(s_fields, n++), "LockPrefixTable", Type.UINT32, 1);
     s_fields[10] = new ImageFieldData(ShiftOffset(s_fields, n++), "MaximumAllocationSize", Type.UINT32, 1);
     s_fields[11] = new ImageFieldData(ShiftOffset(s_fields, n++), "VirtualMemoryThreshold", Type.UINT32, 1);
     s_fields[12] = new ImageFieldData(ShiftOffset(s_fields, n++), "ProcessHeapFlags", Type.UINT32, 1);
     s_fields[13] = new ImageFieldData(ShiftOffset(s_fields, n++), "ProcessAffinityMask", Type.UINT32, 1);
     s_fields[14] = new ImageFieldData(ShiftOffset(s_fields, n++), "CSDVersion", Type.UINT16, 1);
     s_fields[15] = new ImageFieldData(ShiftOffset(s_fields, n++), "Reserved1", Type.UINT16, 1);
     s_fields[16] = new ImageFieldData(ShiftOffset(s_fields, n++), "EditList", Type.UINT32, 1);
     s_fields[17] = new ImageFieldData(ShiftOffset(s_fields, n++), "SecurityCookie", Type.UINT32, 1);
     s_fields[18] = new ImageFieldData(ShiftOffset(s_fields, n++), "SEHandlerTable", Type.UINT32, 1);
     s_fields[19] = new ImageFieldData(ShiftOffset(s_fields, n++), "SEHandlerCount", Type.UINT32, 1);
     s_fields[20] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardCFCheckFunctionPointer", Type.UINT32, 1);
     s_fields[21] = new ImageFieldData(ShiftOffset(s_fields, n++), "Reserved2", Type.UINT32, 1);
     s_fields[22] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardCFFunctionTable", Type.UINT32, 1);
     s_fields[23] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardCFFunctionCount", Type.UINT32, 1);
     s_fields[24] = new ImageFieldData(ShiftOffset(s_fields, n++), "GuardFlags", Type.UINT32, 1);
 }
Ejemplo n.º 4
0
        public int GetFieldOffset(int n)
        {
            ImageFieldData fi     = GetFieldInfo(n);
            int            offset = fi.Offset;

            if (offset >= 0)
            {
                return(offset);
            }

            return(GetFieldOffset(n + offset) + GetFieldSize(n + offset));
        }
Ejemplo n.º 5
0
        public object GetField(int n)
        {
            object         res;
            ImageFieldData fi     = GetFieldInfo(n);
            int            count  = fi.Count;
            int            offset = GetFieldOffset(n);;
            Object         o;
            int            len;

            SafePointer sp = m_pHeader + offset;

            if (fi.VarLen)
            {
                // this assumes we can not have varlen arrays of headers
                count = GetFieldSize(n) / fi.GetTypeLen();
            }

            if (count == 1)
            {
                return(sp.SafePointerToType(fi));
            }

            // if a negative count is provided we tread it as an offset of
            // the field where to find the real count
            if (count < 0)
            {
                count = Convert.ToInt32(GetField(n + count));
            }

            res = new object[count];
            for (int i = 0; i < count; i++)
            {
                o = sp.SafePointerToType(fi);
                ((object[])res)[i] = o;
                if (o is ImageHeader)
                {
                    len = ((ImageHeader)o).Size;
                }
                else
                {
                    len = fi.GetTypeLen();
                }
                sp = sp + len;
            }

            return(res);
        }
Ejemplo n.º 6
0
        public static int GetTypeLen(this ImageFieldData fi)
        {
            int      res    = 0;
            bool     b64bit = false;
            PEHeader ioh    = fi.ParentHeader;

            if (ioh != null)
            {
                b64bit = (ioh.Magic == PEMagic.PE32Plus);
            }

            if (b64bit && fi.Is32BitOnly)
            {
                return(0);
            }

            switch (fi.Type)
            {
            case Type.BYTE: res = 1; break;

            case Type.SBYTE: res = 1; break;

            case Type.UINT16: res = 2; break;

            case Type.INT16: res = 2; break;

            case Type.UINT32: res = 4; break;

            case Type.INT32: res = 4; break;

            case Type.UINT64: res = 8; break;

            case Type.INT64: res = 8; break;

            case Type.POINTER: res = 4; break;

            case Type.HEADER: res = fi.Header.Size; break;

            case Type.NATIVEINT: res = b64bit ? 8 : 4; break;

            default: throw new Exception("Unknown type");
            }

            return(res);
        }
Ejemplo n.º 7
0
        public static object SafePointerToType(this SafePointer sp, ImageFieldData fi)
        {
            object res = null;

            switch (fi.Type)
            {
            case Type.BYTE: res = (byte)sp; break;

            case Type.SBYTE: res = (sbyte)(byte)sp; break;

            case Type.UINT16: res = (UInt16)sp; break;

            case Type.INT16: res = (Int16)(UInt16)sp; break;

            case Type.UINT32: res = (UInt32)sp; break;

            case Type.UINT64: res = (UInt64)sp; break;

            case Type.INT32: res = (Int32)(UInt32)sp; break;

            case Type.INT64: res = (Int64)(UInt64)sp; break;

            case Type.POINTER: res = new SafePointer(sp._array, sp._stream, (Int32)(UInt32)sp); break;

            case Type.HEADER: res = fi.Header.Create(fi.ParentHeader, sp); break;

            case Type.NATIVEINT:
                PEHeader ioh = fi.ParentHeader;
                if ((ioh != null) && (ioh.Magic == PEMagic.PE32Plus))
                {
                    res = (UInt64)sp;
                }
                else
                {
                    res = (UInt32)sp;
                }
                break;

            default: throw new Exception("Unknown type");
            }
            return(res);
        }
Ejemplo n.º 8
0
        public static object SafePointerToType(this SafePointer sp, ImageFieldData fi)
        {
            object res;

            switch (fi.Type)
            {
            case Type.BYTE: res = (byte)sp; break;

            case Type.SBYTE: res = (sbyte)(byte)sp; break;

            case Type.UINT16: res = (ushort)sp; break;

            case Type.INT16: res = (short)(ushort)sp; break;

            case Type.UINT32: res = (uint)sp; break;

            case Type.UINT64: res = (ulong)sp; break;

            case Type.INT32: res = (int)(uint)sp; break;

            case Type.INT64: res = (long)(ulong)sp; break;

            case Type.POINTER: res = new SafePointer(sp.array, sp.stream, (int)(uint)sp); break;

            case Type.HEADER: res = fi.Header.Create(fi.ParentHeader, sp); break;

            case Type.NATIVEINT:
                PEHeader ioh = fi.ParentHeader;
                res = ((ioh != null) && (ioh.Magic == PEMagic.PE32Plus))
                        ? (ulong)sp
                        : (uint)sp;
                break;

            default: throw new InvalidOperationException("Unknown type");
            }
            return(res);
        }
Ejemplo n.º 9
0
 public static int ShiftOffset(ImageFieldData[] fields, int n)
 {
     if ((fields[n].Offset < 0) || (fields[n].Count < 0)) return -1;
     return fields[n].Offset + fields[n].Count * fields[n].GetTypeLen();
 }
Ejemplo n.º 10
0
        public int GetFieldSize(int n)
        {
            ImageFieldData fi      = GetFieldInfo(n);
            int            count   = fi.Count;
            int            padding = fi.PadTo;
            int            size;
            int            len;


            if (fi.VarLen)
            {
                SafePointer field_start = m_pHeader + GetFieldOffset(n);
                SafePointer field_end   = field_start;
                while ((byte)field_end != fi.TrailingByte)
                {
                    field_end++;
                }
                // if we have a VarLen and a PadTo specified we will make sure
                // we only skip up to PadTo trailing bytes
                if (padding != 0)
                {
                    padding = padding - (field_end.Address - m_pHeader.Address) % padding;
                }
                else
                {
                    padding = -1;
                }
                while (((byte)field_end == fi.TrailingByte) && (padding-- != 0))
                {
                    field_end++;
                }

                return(field_end - field_start);
            }

            if (fi.Type == Type.HEADER)
            {
                object o = GetField(n);
                if (o is Array)
                {
                    len = ((ImageHeader)((object[])o)[0]).Size;
                }
                else
                {
                    len = ((ImageHeader)o).Size;
                }
            }
            else
            {
                len = fi.GetTypeLen();
            }

            if (count == 1)
            {
                return(len);
            }

            // if a negative count is provided we tread it as an offset of
            // the field where to find the real count
            if (count < 0)
            {
                count = Convert.ToInt32(GetField(n + count));
            }

            size = len * count;

            // We don't pad is the size is already a multiple of padding
            if ((padding != 0) && (size % padding != 0))
            {
                size += padding - (size % padding);
            }

            return(size);
        }