include 'export.inc' align 4 proc load_PE stdcall, file_name:dword locals image dd ? entry dd ? base dd ? endl stdcall load_file, [file_name] test eax, eax jz .fail mov [image], eax mov edx, [eax+60] stdcall kernel_alloc, [eax+80+edx] test eax, eax jz .cleanup mov [base], eax stdcall map_PE, eax, [image] mov [entry], eax test eax, eax jnz .cleanup stdcall kernel_free, [base] .cleanup: stdcall kernel_free, [image] mov eax, [entry] ret .fail: xor eax, eax ret endp DWORD equ dword PTR equ align 4 map_PE: ;stdcall base:dword, image:dword cld push ebp push edi push esi push ebx sub esp, 60 mov ebx, DWORD PTR [esp+84] mov ebp, DWORD PTR [esp+80] mov edx, ebx mov esi, ebx add edx, DWORD PTR [ebx+60] mov edi, ebp mov DWORD PTR [esp+32], edx mov ecx, DWORD PTR [edx+84] shr ecx, 2 rep movsd movzx eax, WORD PTR [edx+6] mov DWORD PTR [esp+36], 0 mov DWORD PTR [esp+16], eax jmp L2 L3: mov eax, DWORD PTR [edx+264] test eax, eax je L4 mov esi, ebx mov edi, ebp add esi, DWORD PTR [edx+268] mov ecx, eax add edi, DWORD PTR [edx+260] shr ecx, 2 rep movsd L4: mov ecx, DWORD PTR [edx+256] add ecx, 4095 and ecx, -4096 cmp ecx, eax jbe L6 sub ecx, eax add eax, DWORD PTR [edx+260] lea edi, [eax+ebp] xor eax, eax rep stosb L6: inc DWORD PTR [esp+36] add edx, 40 L2: mov esi, DWORD PTR [esp+16] cmp DWORD PTR [esp+36], esi jne L3 mov edi, DWORD PTR [esp+32] cmp DWORD PTR [edi+164], 0 je L9 mov esi, ebp mov ecx, ebp sub esi, DWORD PTR [edi+52] add ecx, DWORD PTR [edi+160] mov eax, esi shr eax, 16 mov DWORD PTR [esp+12], eax jmp L11 L12: lea ebx, [eax-8] xor edi, edi shr ebx,1 jmp L13 L14: movzx eax, WORD PTR [ecx+8+edi*2] mov edx, eax shr eax, 12 and edx, 4095 add edx, DWORD PTR [ecx] cmp ax, 2 je L17 cmp ax, 3 je L18 dec ax jne L15 mov eax, DWORD PTR [esp+12] add WORD PTR [edx+ebp], ax L17: add WORD PTR [edx+ebp], si L18: add DWORD PTR [edx+ebp], esi L15: inc edi L13: cmp edi, ebx jne L14 add ecx, DWORD PTR [ecx+4] L11: mov eax, DWORD PTR [ecx+4] test eax, eax jne L12 L9: mov edx, DWORD PTR [esp+32] cmp DWORD PTR [edx+132], 0 je L20 mov eax, ebp add eax, DWORD PTR [edx+128] mov DWORD PTR [esp+40], 0 add eax, 20 mov DWORD PTR [esp+56], eax L22: mov ecx, DWORD PTR [esp+56] cmp DWORD PTR [ecx-16], 0 jne L23 cmp DWORD PTR [ecx-8], 0 je L25 L23: mov edi, DWORD PTR [__exports+32] mov esi, DWORD PTR [__exports+28] mov eax, DWORD PTR [esp+56] mov DWORD PTR [esp+20], edi sub edi, -2147483648 sub esi, -2147483648 mov DWORD PTR [esp+44], esi mov ecx, DWORD PTR [eax-4] mov DWORD PTR [esp+48], edi mov edx, DWORD PTR [eax-20] mov DWORD PTR [esp+52], 0 add ecx, ebp add edx, ebp mov DWORD PTR [esp+24], edx mov DWORD PTR [esp+28], ecx L26: mov esi, DWORD PTR [esp+52] mov edi, DWORD PTR [esp+24] mov eax, DWORD PTR [edi+esi*4] test eax, eax je L27 test eax, eax js L27 lea edi, [ebp+eax] mov eax, DWORD PTR [esp+28] mov DWORD PTR [eax+esi*4], 0 lea esi, [edi+2] push eax push 32 movzx eax, WORD PTR [edi] mov edx, DWORD PTR [esp+56] mov eax, DWORD PTR [edx+eax*4] sub eax, -2147483648 push eax push esi call strncmp pop ebx xor ebx, ebx test eax, eax jne L32 jmp L30 L33: push ecx push 32 mov ecx, DWORD PTR [esp+28] mov eax, DWORD PTR [ecx-2147483648+ebx*4] sub eax, -2147483648 push eax push esi call strncmp pop edx test eax, eax jne L34 mov esi, DWORD PTR [esp+44] mov edx, DWORD PTR [esp+52] mov ecx, DWORD PTR [esp+28] mov eax, DWORD PTR [esi+ebx*4] sub eax, -2147483648 mov DWORD PTR [ecx+edx*4], eax jmp L36 L34: inc ebx L32: cmp ebx, DWORD PTR [__exports+24] jb L33 L36: cmp ebx, DWORD PTR [__exports+24] jne L37 mov esi, msg_unresolved call sys_msg_board_str lea esi, [edi+2] call sys_msg_board_str mov esi, msg_CR call sys_msg_board_str mov DWORD PTR [esp+40], 1 jmp L37 L30: movzx eax, WORD PTR [edi] mov esi, DWORD PTR [esp+44] mov edi, DWORD PTR [esp+52] mov edx, DWORD PTR [esp+28] mov eax, DWORD PTR [esi+eax*4] sub eax, -2147483648 mov DWORD PTR [edx+edi*4], eax L37: inc DWORD PTR [esp+52] jmp L26 L27: add DWORD PTR [esp+56], 20 jmp L22 L25: xor eax, eax cmp DWORD PTR [esp+40], 0 jne L40 L20: mov ecx, DWORD PTR [esp+32] mov eax, ebp add eax, DWORD PTR [ecx+40] L40: add esp, 60 pop ebx pop esi pop edi pop ebp ret 8 align 16 __exports: export 'KERNEL', \ alloc_kernel_space, 'AllocKernelSpace', \ ; stdcall free_kernel_space, 'FreeKernelSpace', \ ; stdcall kernel_alloc, 'KernelAlloc', \ ; stdcall kernel_free, 'KernelFree', \ ; stdcall map_io_mem, 'MapIoMem', \ ; stdcall pci_api, 'PciApi', \ pci_read32, 'PciRead32', \ ; stdcall reg_service, 'RegService', \ user_alloc, 'UserAlloc', \ ; stdcall user_free, 'UserFree', \ ; stdcall sys_msg_board_str, 'SysMsgBoardStr'