| /* |
| * Copyright 1994 Eric Youndale & Erik Bos |
| * Copyright 1995 Martin von Löwis |
| * Copyright 1996-98 Marcus Meissner |
| * |
| * based on Eric Youndale's pe-test and: |
| * ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| /* Notes: |
| * Before you start changing something in this file be aware of the following: |
| * |
| * - There are several functions called recursively. In a very subtle and |
| * obscure way. DLLs can reference each other recursively etc. |
| * - If you want to enhance, speed up or clean up something in here, think |
| * twice WHY it is implemented in that strange way. There is usually a reason. |
| * Though sometimes it might just be lazyness ;) |
| * - In PE_MapImage, right before PE_fixup_imports() all external and internal |
| * state MUST be correct since this function can be called with the SAME image |
| * AGAIN. (Thats recursion for you.) That means MODREF.module and |
| * NE_MODULE.module32. |
| */ |
| |
| #include "config.h" |
| |
| #include <sys/types.h> |
| #ifdef HAVE_SYS_MMAN_H |
| #include <sys/mman.h> |
| #endif |
| #include <string.h> |
| #include "winbase.h" |
| #include "winerror.h" |
| #include "snoop.h" |
| #include "wine/server.h" |
| #include "wine/debug.h" |
| #include "ntdll_misc.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(win32); |
| WINE_DECLARE_DEBUG_CHANNEL(module); |
| WINE_DECLARE_DEBUG_CHANNEL(relay); |
| |
| |
| /* convert PE image VirtualAddress to Real Address */ |
| inline static void *get_rva( HMODULE module, DWORD va ) |
| { |
| return (void *)((char *)module + va); |
| } |
| |
| #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta)) |
| |
| void dump_exports( HMODULE hModule ) |
| { |
| char *Module; |
| int i, j; |
| WORD *ordinal; |
| DWORD *function,*functions; |
| DWORD *name; |
| IMAGE_EXPORT_DIRECTORY *pe_exports; |
| DWORD rva_start, size; |
| |
| pe_exports = RtlImageDirectoryEntryToData( hModule, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &size ); |
| rva_start = (char *)pe_exports - (char *)hModule; |
| |
| Module = get_rva(hModule, pe_exports->Name); |
| DPRINTF("*******EXPORT DATA*******\n"); |
| DPRINTF("Module name is %s, %ld functions, %ld names\n", |
| Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames); |
| |
| ordinal = get_rva(hModule, pe_exports->AddressOfNameOrdinals); |
| functions = function = get_rva(hModule, pe_exports->AddressOfFunctions); |
| name = get_rva(hModule, pe_exports->AddressOfNames); |
| |
| DPRINTF(" Ord RVA Addr Name\n" ); |
| for (i=0;i<pe_exports->NumberOfFunctions;i++, function++) |
| { |
| if (!*function) continue; /* No such function */ |
| DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, get_rva(hModule, *function) ); |
| /* Check if we have a name for it */ |
| for (j = 0; j < pe_exports->NumberOfNames; j++) |
| if (ordinal[j] == i) |
| { |
| DPRINTF( " %s", (char*)get_rva(hModule, name[j]) ); |
| break; |
| } |
| if ((*function >= rva_start) && (*function <= rva_start + size)) |
| DPRINTF(" (forwarded -> %s)", (char *)get_rva(hModule, *function)); |
| DPRINTF("\n"); |
| } |
| } |
| |
| /********************************************************************** |
| * PE_LoadImage |
| * Load one PE format DLL/EXE into memory |
| * |
| * Unluckily we can't just mmap the sections where we want them, for |
| * (at least) Linux does only support offsets which are page-aligned. |
| * |
| * BUT we have to map the whole image anyway, for Win32 programs sometimes |
| * want to access them. (HMODULE points to the start of it) |
| */ |
| HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags ) |
| { |
| IMAGE_NT_HEADERS *nt; |
| HMODULE hModule; |
| HANDLE mapping; |
| void *base = NULL; |
| OBJECT_ATTRIBUTES attr; |
| LARGE_INTEGER lg_int; |
| DWORD len = 0; |
| NTSTATUS nts; |
| |
| TRACE_(module)( "loading %s\n", filename ); |
| |
| attr.Length = sizeof(attr); |
| attr.RootDirectory = 0; |
| attr.ObjectName = NULL; |
| attr.Attributes = 0; |
| attr.SecurityDescriptor = NULL; |
| attr.SecurityQualityOfService = NULL; |
| |
| lg_int.QuadPart = 0; |
| |
| if (NtCreateSection( &mapping, |
| STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ, |
| &attr, &lg_int, 0, SEC_IMAGE, hFile ) != STATUS_SUCCESS) |
| return 0; |
| |
| nts = NtMapViewOfSection( mapping, GetCurrentProcess(), |
| &base, 0, 0, &lg_int, &len, ViewShare, 0, |
| PAGE_READONLY ); |
| |
| NtClose( mapping ); |
| if (nts != STATUS_SUCCESS) return 0; |
| |
| /* virus check */ |
| |
| hModule = (HMODULE)base; |
| nt = RtlImageNtHeader( hModule ); |
| |
| if (nt->OptionalHeader.AddressOfEntryPoint) |
| { |
| if (!RtlImageRvaToSection( nt, hModule, nt->OptionalHeader.AddressOfEntryPoint )) |
| MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) " |
| "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n", |
| nt->OptionalHeader.AddressOfEntryPoint ); |
| } |
| |
| return hModule; |
| } |
| |
| /********************************************************************** |
| * PE_CreateModule |
| * |
| * Create WINE_MODREF structure for loaded HMODULE, link it into |
| * process modref_list, and fixup all imports. |
| * |
| * Note: hModule must point to a correctly allocated PE image, |
| * with base relocations applied; the 16-bit dummy module |
| * associated to hModule must already exist. |
| * |
| * Note: This routine must always be called in the context of the |
| * process that is to own the module to be created. |
| * |
| * Note: Assumes that the process critical section is held |
| */ |
| WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags, |
| HANDLE hFile, BOOL builtin ) |
| { |
| IMAGE_NT_HEADERS *nt; |
| IMAGE_DATA_DIRECTORY *dir; |
| IMAGE_EXPORT_DIRECTORY *pe_export = NULL; |
| WINE_MODREF *wm; |
| |
| /* Retrieve DataDirectory entries */ |
| |
| nt = RtlImageNtHeader(hModule); |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT; |
| if (dir->Size) pe_export = get_rva(hModule, dir->VirtualAddress); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION; |
| if (dir->Size) FIXME("Exception directory ignored\n" ); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY; |
| if (dir->Size) FIXME("Security directory ignored\n" ); |
| |
| /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */ |
| /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */ |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR; |
| if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" ); |
| |
| /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */ |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG; |
| if (dir->Size) FIXME("Load Configuration directory ignored\n" ); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT; |
| if (dir->Size) TRACE("Bound Import directory ignored\n" ); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT; |
| if (dir->Size) TRACE("Import Address Table directory ignored\n" ); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT; |
| if (dir->Size) |
| { |
| TRACE("Delayed import, stub calls LoadLibrary\n" ); |
| /* |
| * Nothing to do here. |
| */ |
| |
| #ifdef ImgDelayDescr |
| /* |
| * This code is useful to observe what the heck is going on. |
| */ |
| { |
| ImgDelayDescr *pe_delay = NULL; |
| pe_delay = get_rva(hModule, dir->VirtualAddress); |
| TRACE("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs); |
| TRACE("pe_delay->szName = %s\n", pe_delay->szName); |
| TRACE("pe_delay->phmod = %08x\n", pe_delay->phmod); |
| TRACE("pe_delay->pIAT = %08x\n", pe_delay->pIAT); |
| TRACE("pe_delay->pINT = %08x\n", pe_delay->pINT); |
| TRACE("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT); |
| TRACE("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT); |
| TRACE("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp); |
| } |
| #endif /* ImgDelayDescr */ |
| } |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR; |
| if (dir->Size) FIXME("Unknown directory 14 ignored\n" ); |
| |
| dir = nt->OptionalHeader.DataDirectory+15; |
| if (dir->Size) FIXME("Unknown directory 15 ignored\n" ); |
| |
| /* Allocate and fill WINE_MODREF */ |
| |
| if (!(wm = MODULE_AllocModRef( hModule, filename ))) return NULL; |
| |
| if ( builtin ) |
| wm->ldr.Flags |= LDR_WINE_INTERNAL; |
| else if ( flags & DONT_RESOLVE_DLL_REFERENCES ) |
| wm->ldr.Flags |= LDR_DONT_RESOLVE_REFS; |
| |
| /* Dump Exports */ |
| |
| if (pe_export && TRACE_ON(win32)) |
| dump_exports( hModule ); |
| |
| /* Fixup Imports */ |
| |
| if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) && |
| PE_fixup_imports( wm )) |
| { |
| /* remove entry from modref chain */ |
| |
| if ( !wm->prev ) |
| MODULE_modref_list = wm->next; |
| else |
| wm->prev->next = wm->next; |
| |
| if ( wm->next ) wm->next->prev = wm->prev; |
| wm->next = wm->prev = NULL; |
| |
| /* FIXME: there are several more dangling references |
| * left. Including dlls loaded by this dll before the |
| * failed one. Unrolling is rather difficult with the |
| * current structure and we can leave them lying |
| * around with no problems, so we don't care. |
| * As these might reference our wm, we don't free it. |
| */ |
| return NULL; |
| } |
| |
| if (!builtin && pe_export) |
| SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions ); |
| |
| /* Send DLL load event */ |
| /* we don't need to send a dll event for the main exe */ |
| |
| if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL) |
| { |
| if (hFile) |
| { |
| UINT drive_type = GetDriveTypeA( wm->short_filename ); |
| /* don't keep the file handle open on removable media */ |
| if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0; |
| } |
| SERVER_START_REQ( load_dll ) |
| { |
| req->handle = hFile; |
| req->base = (void *)hModule; |
| req->size = nt->OptionalHeader.SizeOfImage; |
| req->dbg_offset = nt->FileHeader.PointerToSymbolTable; |
| req->dbg_size = nt->FileHeader.NumberOfSymbols; |
| req->name = &wm->filename; |
| wine_server_add_data( req, wm->filename, strlen(wm->filename) ); |
| wine_server_call( req ); |
| } |
| SERVER_END_REQ; |
| } |
| |
| return wm; |
| } |
| |
| /****************************************************************************** |
| * The PE Library Loader frontend. |
| * FIXME: handle the flags. |
| */ |
| NTSTATUS PE_LoadLibraryExA (LPCSTR name, DWORD flags, WINE_MODREF** pwm) |
| { |
| HMODULE hModule32; |
| HANDLE hFile; |
| |
| hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ, |
| NULL, OPEN_EXISTING, 0, 0 ); |
| if ( hFile == INVALID_HANDLE_VALUE ) |
| { |
| /* keep it that way until we transform CreateFile into NtCreateFile */ |
| return (GetLastError() == ERROR_FILE_NOT_FOUND) ? |
| STATUS_NO_SUCH_FILE : STATUS_INTERNAL_ERROR; |
| } |
| |
| /* Load PE module */ |
| hModule32 = PE_LoadImage( hFile, name, flags ); |
| if (!hModule32) |
| { |
| CloseHandle( hFile ); |
| return STATUS_INTERNAL_ERROR; |
| } |
| |
| /* Create 32-bit MODREF */ |
| if ( !(*pwm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) ) |
| { |
| ERR( "can't load %s\n", name ); |
| CloseHandle( hFile ); |
| return STATUS_NO_MEMORY; /* FIXME */ |
| } |
| |
| CloseHandle( hFile ); |
| return STATUS_SUCCESS; |
| } |
