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{ $Id: fpdpeimage.pas 54031 2017-01-29 21:04:32Z joost $ }
{
---------------------------------------------------------------------------
fpdpeimage.pas - FP standalone debugger - PE Image
---------------------------------------------------------------------------
This unit contains routines to access or dump the PE header of a executable
loaded in memory.
---------------------------------------------------------------------------
@created(Mon Apr 10th WET 2006)
@lastmod($Date: 2017-01-29 22:04:32 +0100 (So, 29 Jan 2017) $)
@author(Marc Weustink <marc@@dommelstein.nl>)
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
}
unit FPDPEImage;
{$mode objfpc}{$H+}
interface
uses
Windows, SysUtils, FPDGLobal, FpDbgInfo, FpDbgClasses, FpDbgPETypes, DbgIntfBaseTypes, FpDbgUtil;
procedure DumpPEImage(const AProcessHandle: THandle; const AAddress: TDbgPtr);
implementation
const
DIR_NAMES: array[0..IMAGE_NUMBEROF_DIRECTORY_ENTRIES-1] of string = (
'EXPORT',
'IMPORT',
'RESOURCE',
'EXCEPTION',
'SECURITY',
'BASERELOC',
'DEBUG',
'COPYRIGHT',
'GLOBALPTR',
'TLS',
'LOAD_CONFIG',
'BOUND_IMPORT',
'IAT',
'DELAY_IMPORT',
'COM_DECRIPTOR',
'Unknown(15)'
);
procedure DumpPEImage(const AProcessHandle: THandle; const AAddress: TDbgPtr);
var
DosHeader: TImageDosHeader;
NtHeaders: TImageNtHeaders64; // read it as 64 bit, so there is enough room. The fields will be decoded manually
SectionHeader: TImageSectionHeader;
OH: PImageOptionalHeader64;
BytesRead: PtrUInt;
R: Boolean;
n: Integer;
Is64: Boolean;
SectionName: array[0..255] of Char;
begin
if not ReadProcessMemory(AProcessHandle, Pointer(PtrUInt(AAddress)), @DosHeader, SizeOf(DosHeader), BytesRead)
then begin
WriteLN('Unable to retrieve DOS header');
Exit;
end;
if (DosHeader.e_magic <> IMAGE_DOS_SIGNATURE)
or (DosHeader.e_lfanew = 0)
then begin
WriteLN('Invalid DOS header');
Exit;
end;
if not ReadProcessMemory(AProcessHandle, Pointer(PtrUInt(AAddress + DosHeader.e_lfanew)), @NTHeaders, SizeOf(NTHeaders), BytesRead)
then begin
WriteLN('Unable to retrieve NT headers');
Exit;
end;
if NTHeaders.Signature <> IMAGE_NT_SIGNATURE
then begin
WriteLN('Invalid NT header: ', IntToHex(NTHeaders.Signature, 8));
Exit;
end;
WriteLN('FileHeader: ');
with NTHeaders.FileHeader do
begin
Write(' Machine: ', IntToHex(Machine, 4));
case Machine of
IMAGE_FILE_MACHINE_I386: WriteLN(' (Intel 386)');
IMAGE_FILE_MACHINE_R3000: WriteLN(' (MIPS little-endian, 0x160 big-endian)');
IMAGE_FILE_MACHINE_R4000: WriteLN(' (MIPS little-endian)');
IMAGE_FILE_MACHINE_R10000: WriteLN(' (MIPS little-endian)');
IMAGE_FILE_MACHINE_ALPHA: WriteLN(' (Alpha_AXP)');
IMAGE_FILE_MACHINE_POWERPC: WriteLN(' (IBM PowerPC Little-Endian)');
IMAGE_FILE_MACHINE_IA64: WriteLN(' (Intel IPF)');
IMAGE_FILE_MACHINE_AMD64: WriteLN(' (x64)');
else
WriteLN;
end;
WriteLN(' NumberOfSections: ', NumberOfSections);
WriteLN(' TimeDateStamp: ', TimeDateStamp);
WriteLN(' PointerToSymbolTable: ', PointerToSymbolTable);
WriteLN(' NumberOfSymbols: ', NumberOfSymbols);
WriteLN(' SizeOfOptionalHeader: ', SizeOfOptionalHeader);
Write(' Characteristics: ', IntToHex(Characteristics, 4), ' [');
if Characteristics and IMAGE_FILE_RELOCS_STRIPPED <> 0 then Write('RELOCS_STRIPPED ');
if Characteristics and IMAGE_FILE_EXECUTABLE_IMAGE <> 0 then Write('EXECUTABLE_IMAGE ');
if Characteristics and IMAGE_FILE_LINE_NUMS_STRIPPED <> 0 then Write('LINE_NUMS_STRIPPED ');
if Characteristics and IMAGE_FILE_LOCAL_SYMS_STRIPPED <> 0 then Write('LOCAL_SYMS_STRIPPED ');
if Characteristics and IMAGE_FILE_AGGRESIVE_WS_TRIM <> 0 then Write('AGGRESIVE_WS_TRIM ');
if Characteristics and IMAGE_FILE_LARGE_ADDRESS_AWARE <> 0 then Write('LARGE_ADDRESS_AWARE ');
if Characteristics and IMAGE_FILE_BYTES_REVERSED_LO <> 0 then Write('BYTES_REVERSED_LO ');
if Characteristics and IMAGE_FILE_32BIT_MACHINE <> 0 then Write('32BIT_MACHINE ');
if Characteristics and IMAGE_FILE_DEBUG_STRIPPED <> 0 then Write('DEBUG_STRIPPED ');
if Characteristics and IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP <> 0 then Write('REMOVABLE_RUN_FROM_SWAP ');
if Characteristics and IMAGE_FILE_NET_RUN_FROM_SWAP <> 0 then Write('NET_RUN_FROM_SWAP ');
if Characteristics and IMAGE_FILE_SYSTEM <> 0 then Write('SYSTEM ');
if Characteristics and IMAGE_FILE_DLL <> 0 then Write('DLL ');
if Characteristics and IMAGE_FILE_UP_SYSTEM_ONLY <> 0 then Write('UP_SYSTEM_ONLY ');
if Characteristics and IMAGE_FILE_BYTES_REVERSED_HI <> 0 then Write('BYTES_REVERSED_HI ');
WriteLN(']');
end;
WriteLN('OptionalHeader: ');
OH := @NTHeaders.OptionalHeader;
Is64 := OH^.Magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
Write(' Magic: ', IntToHex(OH^.Magic, 4));
case OH^.Magic of
IMAGE_NT_OPTIONAL_HDR32_MAGIC : WriteLN(' (HDR32)');
IMAGE_NT_OPTIONAL_HDR64_MAGIC : WriteLN(' (HDR64)');
IMAGE_ROM_OPTIONAL_HDR_MAGIC : WriteLN(' (ROM)');
else
WriteLN;
end;
WriteLN(' MajorLinkerVersion: ', OH^.MajorLinkerVersion);
WriteLN(' MinorLinkerVersion: ', OH^.MinorLinkerVersion);
WriteLN(' SizeOfCode: ', OH^.SizeOfCode);
WriteLN(' SizeOfInitializedData: ', OH^.SizeOfInitializedData);
WriteLN(' SizeOfUninitializedData: ', OH^.SizeOfUninitializedData);
WriteLN(' AddressOfEntryPoint: ', FormatAddress(OH^.AddressOfEntryPoint));
WriteLN(' BaseOfCode: ', FormatAddress(OH^.BaseOfCode));
if Is64
then begin
WriteLN(' ImageBase: $', IntToHex(OH^.ImageBase, 16));
end
else begin
WriteLN(' BaseOfData: $', IntToHex(Integer(OH^.ImageBase), 8));
WriteLN(' ImageBase: $', IntToHex(Integer(OH^.ImageBase shr 32), 8));
end;
WriteLN(' SectionAlignment: ', OH^.SectionAlignment);
WriteLN(' FileAlignment: ', OH^.FileAlignment);
WriteLN(' MajorOperatingSystemVersion: ', OH^.MajorOperatingSystemVersion);
WriteLN(' MinorOperatingSystemVersion: ', OH^.MinorOperatingSystemVersion);
WriteLN(' MajorImageVersion: ', OH^.MajorImageVersion);
WriteLN(' MinorImageVersion: ', OH^.MinorImageVersion);
WriteLN(' MajorSubsystemVersion: ', OH^.MajorSubsystemVersion);
WriteLN(' MinorSubsystemVersion: ', OH^.MinorSubsystemVersion);
WriteLN(' Win32VersionValue: ', OH^.Win32VersionValue);
WriteLN(' SizeOfImage: ', OH^.SizeOfImage);
WriteLN(' SizeOfHeaders: ', OH^.SizeOfHeaders);
WriteLN(' CheckSum: ', OH^.CheckSum);
Write(' Subsystem: ', OH^.Subsystem);
case OH^.Subsystem of
IMAGE_SUBSYSTEM_UNKNOWN: WriteLN(' (Unknown)');
IMAGE_SUBSYSTEM_NATIVE: WriteLN(' (Native)');
IMAGE_SUBSYSTEM_WINDOWS_CUI: WriteLN(' (Windows CUI)');
IMAGE_SUBSYSTEM_WINDOWS_GUI: WriteLN(' (Windows GUI)');
IMAGE_SUBSYSTEM_OS2_CUI: WriteLN(' (OS2_CUI)');
IMAGE_SUBSYSTEM_POSIX_CUI: WriteLN(' (POSIX CUI)');
IMAGE_SUBSYSTEM_WINDOWS_CE_GUI: WriteLN(' (Windows CE GUI)');
IMAGE_SUBSYSTEM_XBOX: WriteLN(' (XBOX)');
else
WriteLN;
end;
Write(' DllCharacteristics: ', IntToHex(OH^.DllCharacteristics, 4), ' [');
if OH^.DllCharacteristics and IMAGE_LIBRARY_PROCESS_INIT <> 0 then Write('PROCESS_INIT (reserved) ');
if OH^.DllCharacteristics and IMAGE_LIBRARY_PROCESS_TERM <> 0 then Write('PROCESS_TERM (reserved) ');
if OH^.DllCharacteristics and IMAGE_LIBRARY_THREAD_INIT <> 0 then Write('THREAD_INIT (reserved) ');
if OH^.DllCharacteristics and IMAGE_LIBRARY_THREAD_TERM <> 0 then Write('THREAD_TERM (reserved) ');
if OH^.DllCharacteristics and IMAGE_DLLCHARACTERISTICS_NO_ISOLATION <> 0 then Write('NO_ISOLATION ');
if OH^.DllCharacteristics and IMAGE_DLLCHARACTERISTICS_NO_SEH <> 0 then Write('NO_SEH ');
if OH^.DllCharacteristics and IMAGE_DLLCHARACTERISTICS_NO_BIND <> 0 then Write('NO_BIND ');
if OH^.DllCharacteristics and IMAGE_DLLCHARACTERISTICS_WDM_DRIVER <> 0 then Write('WDM_DRIVER ');
if OH^.DllCharacteristics and IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE <> 0 then Write('TERMINAL_SERVER_AWARE ');
WriteLN(']');
Write(' SizeOfStackReserve: $');
if Is64
then begin
WriteLN(IntToHex(OH^.SizeOfStackReserve, 16));
end
else begin
WriteLN(IntToHex(Integer(OH^.SizeOfStackReserve), 8));
Dec(PChar(OH), 4); // adjust with 4 bytes so the next record matches again
end;
Write(' SizeOfStackCommit: $');
if Is64
then begin
WriteLN(IntToHex(OH^.SizeOfStackCommit, 16));
end
else begin
WriteLN(IntToHex(Integer(OH^.SizeOfStackCommit), 8));
Dec(PChar(OH), 4); // adjust with 4 bytes so the next record matches again
end;
Write(' SizeOfHeapReserve: $');
if Is64
then begin
WriteLN(IntToHex(OH^.SizeOfHeapReserve, 16));
end
else begin
WriteLN(IntToHex(Integer(OH^.SizeOfHeapReserve), 8));
Dec(PChar(OH), 4); // adjust with 4 bytes so the next record matches again
end;
Write(' SizeOfHeapCommit: $');
if Is64
then begin
WriteLN(IntToHex(OH^.SizeOfHeapCommit, 16));
end
else begin
WriteLN(IntToHex(Integer(OH^.SizeOfHeapCommit), 8));
Dec(PChar(OH), 4); // adjust with 4 bytes so the next record matches again
end;
WriteLN(' LoaderFlags: ', OH^.LoaderFlags);
WriteLN(' NumberOfRvaAndSizes: ', OH^.NumberOfRvaAndSizes);
WriteLN(' DataDirectory:');
for n := 0 to IMAGE_NUMBEROF_DIRECTORY_ENTRIES-1 do
begin
WriteLN(' [', DIR_NAMES[n]+']':14, ' Address: $', IntToHex(OH^.DataDirectory[n].VirtualAddress, 8), ' Size: ', OH^.DataDirectory[n]. Size);
end;
WriteLN('Sections: ');
for n := 0 to NtHeaders.FileHeader.NumberOfSections - 1 do
begin
if not ReadProcessMemory(AProcessHandle, Pointer(PtrUInt(AAddress + DosHeader.e_lfanew + SizeOF(NTHeaders) - SizeOF(NTHeaders.OptionalHeader) + NTHeaders.FileHeader.SizeOfOptionalHeader + SizeOf(SectionHeader) * n)), @SectionHeader, SizeOf(SectionHeader), BytesRead)
then begin
WriteLN('Unable to retrieve section: ', n);
Continue;
end;
with SectionHeader do
begin
Write(' Name: ');
if (Name[0] = Ord('/')) and (Name[1] in [Ord('0')..Ord('9')])
then begin
// long name
if ReadProcessMemory(
AProcessHandle,
Pointer(PtrUInt(AAddress + NTHeaders.FileHeader.PointerToSymbolTable + NTHeaders.FileHeader.NumberOfSymbols * IMAGE_SIZEOF_SYMBOL + StrToIntDef(PChar(@Name[1]), 0))),
@SectionName,
SizeOf(SectionName),
BytesRead
)
then WriteLn(SectionName)
else WriteLn('Unable to retrieve sectionname @', PChar(@Name[1]));
end
else begin
// short name
Move(Name, SectionName, IMAGE_SIZEOF_SHORT_NAME);
SectionName[IMAGE_SIZEOF_SHORT_NAME] := #0; // make it #0 terminated
WriteLn(SectionName);
end;
WriteLN(' Misc.PhysicalAddress: ',FormatAddress(Misc.PhysicalAddress));
WriteLN(' Misc.VirtualSize: ',Misc.VirtualSize);
WriteLN(' VirtualAddress: ',FormatAddress(VirtualAddress));
WriteLN(' SizeOfRawData: ',SizeOfRawData);
WriteLN(' PointerToRawData: ',FormatAddress(PointerToRawData));
WriteLN(' PointerToRelocations: ',FormatAddress(PointerToRelocations));
WriteLN(' PointerToLinenumbers: ',FormatAddress(PointerToLinenumbers));
WriteLN(' NumberOfRelocations: ',NumberOfRelocations);
WriteLN(' NumberOfLinenumbers: ',NumberOfLinenumbers);
Write(' Characteristics: ', IntToHex(Characteristics, 8), ' [');
if Characteristics and IMAGE_SCN_TYPE_REG <> 0 then Write('IMAGE_SCN_TYPE_REG(r) ');
if Characteristics and IMAGE_SCN_TYPE_DSECT <> 0 then Write('IMAGE_SCN_TYPE_DSECT(r) ');
if Characteristics and IMAGE_SCN_TYPE_NOLOAD <> 0 then Write('IMAGE_SCN_TYPE_NOLOAD(r) ');
if Characteristics and IMAGE_SCN_TYPE_GROUP <> 0 then Write('IMAGE_SCN_TYPE_GROUP(r) ');
if Characteristics and IMAGE_SCN_TYPE_NO_PAD <> 0 then Write('IMAGE_SCN_TYPE_NO_PAD(r) ');
if Characteristics and IMAGE_SCN_TYPE_COPY <> 0 then Write('IMAGE_SCN_TYPE_COPY(r) ');
if Characteristics and IMAGE_SCN_CNT_CODE <> 0 then Write('IMAGE_SCN_CNT_CODE ');
if Characteristics and IMAGE_SCN_CNT_INITIALIZED_DATA <> 0 then Write('IMAGE_SCN_CNT_INITIALIZED_DATA ');
if Characteristics and IMAGE_SCN_CNT_UNINITIALIZED_DATA <> 0 then Write('IMAGE_SCN_CNT_UNINITIALIZED_DATA ');
if Characteristics and IMAGE_SCN_LNK_OTHER <> 0 then Write('IMAGE_SCN_LNK_OTHER(r) ');
if Characteristics and IMAGE_SCN_LNK_INFO <> 0 then Write('IMAGE_SCN_LNK_INFO(r) ');
if Characteristics and IMAGE_SCN_TYPE_OVER <> 0 then Write('IMAGE_SCN_TYPE_OVER(r) ');
if Characteristics and IMAGE_SCN_LNK_COMDAT <> 0 then Write('IMAGE_SCN_LNK_COMDAT ');
if Characteristics and IMAGE_SCN_MEM_PROTECTED <> 0 then Write('IMAGE_SCN_MEM_PROTECTED(o) ');
if Characteristics and IMAGE_SCN_MEM_FARDATA <> 0 then Write('IMAGE_SCN_MEM_FARDATA(r) ');
if Characteristics and IMAGE_SCN_MEM_SYSHEAP <> 0 then Write('IMAGE_SCN_MEM_SYSHEAP(o) ');
if Characteristics and IMAGE_SCN_MEM_PURGEABLE <> 0 then Write('IMAGE_SCN_MEM_PURGEABLE(r) ');
if Characteristics and IMAGE_SCN_MEM_16BIT <> 0 then Write('IMAGE_SCN_MEM_16BIT(r) ');
if Characteristics and IMAGE_SCN_MEM_LOCKED <> 0 then Write('IMAGE_SCN_MEM_LOCKED(r) ');
if Characteristics and IMAGE_SCN_MEM_PRELOAD <> 0 then Write('IMAGE_SCN_MEM_PRELOAD(r) ');
// Align
if Characteristics and $00F00000 <> 0
then Write('IMAGE_SCN_ALIGN_', 1 shl (((Characteristics and $00F00000) shr 20) - 1),'BYTES ');
if Characteristics and IMAGE_SCN_LNK_NRELOC_OVFL <> 0 then Write('IMAGE_SCN_LNK_NRELOC_OVFL ');
if Characteristics and IMAGE_SCN_MEM_DISCARDABLE <> 0 then Write('IMAGE_SCN_MEM_DISCARDABLE ');
if Characteristics and IMAGE_SCN_MEM_NOT_CACHED <> 0 then Write('IMAGE_SCN_MEM_NOT_CACHED ');
if Characteristics and IMAGE_SCN_MEM_NOT_PAGED <> 0 then Write('IMAGE_SCN_MEM_NOT_PAGED ');
if Characteristics and IMAGE_SCN_MEM_SHARED <> 0 then Write('IMAGE_SCN_MEM_SHARED ');
if Characteristics and IMAGE_SCN_MEM_EXECUTE <> 0 then Write('IMAGE_SCN_MEM_EXECUTE ');
if Characteristics and IMAGE_SCN_MEM_READ <> 0 then Write('IMAGE_SCN_MEM_READ ');
if Characteristics and IMAGE_SCN_MEM_WRITE <> 0 then Write('IMAGE_SCN_MEM_WRITE ');
WriteLN(']');
end;
end;
end;
end.
|
