| /* |
| * 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:/pub/developer/MSDN/CD8/PEFILE.ZIP |
| * make that: |
| * ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP |
| */ |
| /* 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 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. |
| * - Sometimes, we can't use Linux mmap() to mmap() the images directly. |
| * |
| * The problem is, that there is not direct 1:1 mapping from a diskimage and |
| * a memoryimage. The headers at the start are mapped linear, but the sections |
| * are not. Older x86 pe binaries are 512 byte aligned in file and 4096 byte |
| * aligned in memory. Linux likes them 4096 byte aligned in memory (due to |
| * x86 pagesize, this cannot be fixed without a rather large kernel rewrite) |
| * and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM) |
| * and other byte blocksizes, we can't always do this. We *can* do this for |
| * newer pe binaries produced by MSVC 5 and later, since they are also aligned |
| * to 4096 byte boundaries on disk. |
| */ |
| |
| #include "config.h" |
| |
| #include <errno.h> |
| #include <assert.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #ifdef HAVE_SYS_MMAN_H |
| #include <sys/mman.h> |
| #endif |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wine/winbase16.h" |
| #include "winerror.h" |
| #include "callback.h" |
| #include "file.h" |
| #include "heap.h" |
| #include "neexe.h" |
| #include "process.h" |
| #include "thread.h" |
| #include "pe_image.h" |
| #include "module.h" |
| #include "global.h" |
| #include "task.h" |
| #include "snoop.h" |
| #include "server.h" |
| #include "debugtools.h" |
| |
| DEFAULT_DEBUG_CHANNEL(win32); |
| DECLARE_DEBUG_CHANNEL(delayhlp); |
| DECLARE_DEBUG_CHANNEL(fixup); |
| DECLARE_DEBUG_CHANNEL(module); |
| DECLARE_DEBUG_CHANNEL(relay); |
| DECLARE_DEBUG_CHANNEL(segment); |
| |
| |
| /* convert PE image VirtualAddress to Real Address */ |
| #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x))) |
| |
| #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta)) |
| |
| void dump_exports( HMODULE hModule ) |
| { |
| char *Module; |
| int i, j; |
| u_short *ordinal; |
| u_long *function,*functions; |
| u_char **name; |
| unsigned int load_addr = hModule; |
| |
| DWORD rva_start = PE_HEADER(hModule)->OptionalHeader |
| .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress; |
| DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader |
| .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size; |
| IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start); |
| |
| Module = (char*)RVA(pe_exports->Name); |
| TRACE("*******EXPORT DATA*******\n"); |
| TRACE("Module name is %s, %ld functions, %ld names\n", |
| Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames); |
| |
| ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals); |
| functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions); |
| name=(u_char**) RVA(pe_exports->AddressOfNames); |
| |
| TRACE(" Ord RVA Addr Name\n" ); |
| for (i=0;i<pe_exports->NumberOfFunctions;i++, function++) |
| { |
| if (!*function) continue; /* No such function */ |
| if (TRACE_ON(win32)) |
| { |
| DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) ); |
| /* Check if we have a name for it */ |
| for (j = 0; j < pe_exports->NumberOfNames; j++) |
| if (ordinal[j] == i) |
| { |
| DPRINTF( " %s", (char*)RVA(name[j]) ); |
| break; |
| } |
| if ((*function >= rva_start) && (*function <= rva_end)) |
| DPRINTF(" (forwarded -> %s)", (char *)RVA(*function)); |
| DPRINTF("\n"); |
| } |
| } |
| } |
| |
| /* Look up the specified function or ordinal in the exportlist: |
| * If it is a string: |
| * - look up the name in the Name list. |
| * - look up the ordinal with that index. |
| * - use the ordinal as offset into the functionlist |
| * If it is a ordinal: |
| * - use ordinal-pe_export->Base as offset into the functionlist |
| */ |
| FARPROC PE_FindExportedFunction( |
| WINE_MODREF *wm, /* [in] WINE modreference */ |
| LPCSTR funcName, /* [in] function name */ |
| BOOL snoop ) |
| { |
| u_short * ordinals; |
| u_long * function; |
| u_char ** name, *ename = NULL; |
| int i, ordinal; |
| PE_MODREF *pem = &(wm->binfmt.pe); |
| IMAGE_EXPORT_DIRECTORY *exports = pem->pe_export; |
| unsigned int load_addr = wm->module; |
| u_long rva_start, rva_end, addr; |
| char * forward; |
| |
| if (HIWORD(funcName)) |
| TRACE("(%s)\n",funcName); |
| else |
| TRACE("(%d)\n",(int)funcName); |
| if (!exports) { |
| /* Not a fatal problem, some apps do |
| * GetProcAddress(0,"RegisterPenApp") which triggers this |
| * case. |
| */ |
| WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,pem); |
| return NULL; |
| } |
| ordinals= (u_short*) RVA(exports->AddressOfNameOrdinals); |
| function= (u_long*) RVA(exports->AddressOfFunctions); |
| name = (u_char **) RVA(exports->AddressOfNames); |
| forward = NULL; |
| rva_start = PE_HEADER(wm->module)->OptionalHeader |
| .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress; |
| rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader |
| .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size; |
| |
| if (HIWORD(funcName)) |
| { |
| /* first try a binary search */ |
| int min = 0, max = exports->NumberOfNames - 1; |
| while (min <= max) |
| { |
| int res, pos = (min + max) / 2; |
| ename = RVA(name[pos]); |
| if (!(res = strcmp( ename, funcName ))) |
| { |
| ordinal = ordinals[pos]; |
| goto found; |
| } |
| if (res > 0) max = pos - 1; |
| else min = pos + 1; |
| } |
| /* now try a linear search in case the names aren't sorted properly */ |
| for (i = 0; i < exports->NumberOfNames; i++) |
| { |
| ename = RVA(name[i]); |
| if (!strcmp( ename, funcName )) |
| { |
| ERR( "%s.%s required a linear search\n", wm->modname, funcName ); |
| ordinal = ordinals[i]; |
| goto found; |
| } |
| } |
| return NULL; |
| } |
| else /* find by ordinal */ |
| { |
| ordinal = LOWORD(funcName) - exports->Base; |
| if (snoop && name) /* need to find a name for it */ |
| { |
| for (i = 0; i < exports->NumberOfNames; i++) |
| if (ordinals[i] == ordinal) |
| { |
| ename = RVA(name[i]); |
| break; |
| } |
| } |
| } |
| |
| found: |
| if (ordinal >= exports->NumberOfFunctions) |
| { |
| TRACE(" ordinal %ld out of range!\n", ordinal + exports->Base ); |
| return NULL; |
| } |
| addr = function[ordinal]; |
| if (!addr) return NULL; |
| if ((addr < rva_start) || (addr >= rva_end)) |
| { |
| FARPROC proc = RVA(addr); |
| if (snoop) |
| { |
| if (!ename) ename = "@"; |
| proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc); |
| } |
| return proc; |
| } |
| else /* forward entry point */ |
| { |
| WINE_MODREF *wm; |
| FARPROC proc; |
| char *forward = RVA(addr); |
| char module[256]; |
| char *end = strchr(forward, '.'); |
| |
| if (!end) return NULL; |
| if (end - forward >= sizeof(module)) return NULL; |
| memcpy( module, forward, end - forward ); |
| module[end-forward] = 0; |
| if (!(wm = MODULE_FindModule( module ))) |
| { |
| ERR("module not found for forward '%s'\n", forward ); |
| return NULL; |
| } |
| if (!(proc = MODULE_GetProcAddress( wm->module, end + 1, snoop ))) |
| ERR("function not found for forward '%s'\n", forward ); |
| return proc; |
| } |
| } |
| |
| DWORD fixup_imports( WINE_MODREF *wm ) |
| { |
| IMAGE_IMPORT_DESCRIPTOR *pe_imp; |
| PE_MODREF *pem; |
| unsigned int load_addr = wm->module; |
| int i,characteristics_detection=1; |
| char *modname; |
| |
| assert(wm->type==MODULE32_PE); |
| pem = &(wm->binfmt.pe); |
| if (pem->pe_export) |
| modname = (char*) RVA(pem->pe_export->Name); |
| else |
| modname = "<unknown>"; |
| |
| /* OK, now dump the import list */ |
| TRACE("Dumping imports list\n"); |
| |
| /* first, count the number of imported non-internal modules */ |
| pe_imp = pem->pe_import; |
| if (!pe_imp) return 0; |
| |
| /* We assume that we have at least one import with !0 characteristics and |
| * detect broken imports with all characteristics 0 (notably Borland) and |
| * switch the detection off for them. |
| */ |
| for (i = 0; pe_imp->Name ; pe_imp++) { |
| if (!i && !pe_imp->u.Characteristics) |
| characteristics_detection = 0; |
| if (characteristics_detection && !pe_imp->u.Characteristics) |
| break; |
| i++; |
| } |
| if (!i) return 0; /* no imports */ |
| |
| /* Allocate module dependency list */ |
| wm->nDeps = i; |
| wm->deps = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) ); |
| |
| /* load the imported modules. They are automatically |
| * added to the modref list of the process. |
| */ |
| |
| for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) { |
| WINE_MODREF *wmImp; |
| IMAGE_IMPORT_BY_NAME *pe_name; |
| PIMAGE_THUNK_DATA import_list,thunk_list; |
| char *name = (char *) RVA(pe_imp->Name); |
| |
| if (characteristics_detection && !pe_imp->u.Characteristics) |
| break; |
| |
| wmImp = MODULE_LoadLibraryExA( name, 0, 0 ); |
| if (!wmImp) { |
| ERR_(module)("Module (file) %s needed by %s not found\n", name, wm->filename); |
| return 1; |
| } |
| wm->deps[i++] = wmImp; |
| |
| /* FIXME: forwarder entries ... */ |
| |
| if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */ |
| TRACE("Microsoft style imports used\n"); |
| import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk); |
| thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk); |
| |
| while (import_list->u1.Ordinal) { |
| if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) { |
| int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal); |
| |
| TRACE("--- Ordinal %s,%d\n", name, ordinal); |
| thunk_list->u1.Function=MODULE_GetProcAddress( |
| wmImp->module, (LPCSTR)ordinal, TRUE |
| ); |
| if (!thunk_list->u1.Function) { |
| ERR("No implementation for %s.%d, setting to 0xdeadbeef\n", |
| name, ordinal); |
| thunk_list->u1.Function = (FARPROC)0xdeadbeef; |
| } |
| } else { /* import by name */ |
| pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData); |
| TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint); |
| thunk_list->u1.Function=MODULE_GetProcAddress( |
| wmImp->module, pe_name->Name, TRUE |
| ); |
| if (!thunk_list->u1.Function) { |
| ERR("No implementation for %s.%d(%s), setting to 0xdeadbeef\n", |
| name,pe_name->Hint,pe_name->Name); |
| thunk_list->u1.Function = (FARPROC)0xdeadbeef; |
| } |
| } |
| import_list++; |
| thunk_list++; |
| } |
| } else { /* Borland style */ |
| TRACE("Borland style imports used\n"); |
| thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk); |
| while (thunk_list->u1.Ordinal) { |
| if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) { |
| /* not sure about this branch, but it seems to work */ |
| int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal); |
| |
| TRACE("--- Ordinal %s.%d\n",name,ordinal); |
| thunk_list->u1.Function=MODULE_GetProcAddress( |
| wmImp->module, (LPCSTR) ordinal, TRUE |
| ); |
| if (!thunk_list->u1.Function) { |
| ERR("No implementation for %s.%d, setting to 0xdeadbeef\n", |
| name,ordinal); |
| thunk_list->u1.Function = (FARPROC)0xdeadbeef; |
| } |
| } else { |
| pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData); |
| TRACE("--- %s %s.%d\n", |
| pe_name->Name,name,pe_name->Hint); |
| thunk_list->u1.Function=MODULE_GetProcAddress( |
| wmImp->module, pe_name->Name, TRUE |
| ); |
| if (!thunk_list->u1.Function) { |
| ERR("No implementation for %s.%d, setting to 0xdeadbeef\n", |
| name, pe_name->Hint); |
| thunk_list->u1.Function = (FARPROC)0xdeadbeef; |
| } |
| } |
| thunk_list++; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static int calc_vma_size( HMODULE hModule ) |
| { |
| int i,vma_size = 0; |
| IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule); |
| |
| TRACE("Dump of segment table\n"); |
| TRACE(" Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Char\n"); |
| for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++) |
| { |
| TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lx\n", |
| pe_seg->Name, |
| pe_seg->Misc.VirtualSize, |
| pe_seg->VirtualAddress, |
| pe_seg->SizeOfRawData, |
| pe_seg->PointerToRawData, |
| pe_seg->PointerToRelocations, |
| pe_seg->PointerToLinenumbers, |
| pe_seg->NumberOfRelocations, |
| pe_seg->NumberOfLinenumbers, |
| pe_seg->Characteristics); |
| vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData); |
| vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize); |
| pe_seg++; |
| } |
| return vma_size; |
| } |
| |
| static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r ) |
| { |
| int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase; |
| int hdelta = (delta >> 16) & 0xFFFF; |
| int ldelta = delta & 0xFFFF; |
| |
| if(delta == 0) |
| /* Nothing to do */ |
| return; |
| while(r->VirtualAddress) |
| { |
| char *page = (char*) RVA(r->VirtualAddress); |
| int count = (r->SizeOfBlock - 8)/2; |
| int i; |
| TRACE_(fixup)("%x relocations for page %lx\n", |
| count, r->VirtualAddress); |
| /* patching in reverse order */ |
| for(i=0;i<count;i++) |
| { |
| int offset = r->TypeOffset[i] & 0xFFF; |
| int type = r->TypeOffset[i] >> 12; |
| TRACE_(fixup)("patching %x type %x\n", offset, type); |
| switch(type) |
| { |
| case IMAGE_REL_BASED_ABSOLUTE: break; |
| case IMAGE_REL_BASED_HIGH: |
| *(short*)(page+offset) += hdelta; |
| break; |
| case IMAGE_REL_BASED_LOW: |
| *(short*)(page+offset) += ldelta; |
| break; |
| case IMAGE_REL_BASED_HIGHLOW: |
| *(int*)(page+offset) += delta; |
| /* FIXME: if this is an exported address, fire up enhanced logic */ |
| break; |
| case IMAGE_REL_BASED_HIGHADJ: |
| FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJ\n"); |
| break; |
| case IMAGE_REL_BASED_MIPS_JMPADDR: |
| FIXME("Is this a MIPS machine ???\n"); |
| break; |
| default: |
| FIXME("Unknown fixup type %d.\n", type); |
| break; |
| } |
| } |
| r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock); |
| } |
| } |
| |
| |
| |
| |
| |
| /********************************************************************** |
| * 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. (HMODULE32 point to the start of it) |
| */ |
| HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename ) |
| { |
| HMODULE hModule; |
| HANDLE mapping; |
| |
| IMAGE_NT_HEADERS *nt; |
| IMAGE_SECTION_HEADER *pe_sec; |
| IMAGE_DATA_DIRECTORY *dir; |
| BY_HANDLE_FILE_INFORMATION bhfi; |
| int i, rawsize, lowest_va, vma_size, file_size = 0; |
| DWORD load_addr = 0, aoep, reloc = 0; |
| struct get_read_fd_request *req = get_req_buffer(); |
| int unix_handle = -1; |
| int page_size = VIRTUAL_GetPageSize(); |
| |
| /* Retrieve file size */ |
| if ( GetFileInformationByHandle( hFile, &bhfi ) ) |
| file_size = bhfi.nFileSizeLow; /* FIXME: 64 bit */ |
| |
| /* Map the PE file somewhere */ |
| mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT, |
| 0, 0, NULL ); |
| if (!mapping) |
| { |
| WARN("CreateFileMapping error %ld\n", GetLastError() ); |
| return 0; |
| } |
| hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 ); |
| CloseHandle( mapping ); |
| if (!hModule) |
| { |
| WARN("MapViewOfFile error %ld\n", GetLastError() ); |
| return 0; |
| } |
| if ( *(WORD*)hModule !=IMAGE_DOS_SIGNATURE) |
| { |
| WARN("%s image doesn't have DOS signature, but 0x%04x\n", filename,*(WORD*)hModule); |
| SetLastError( ERROR_BAD_EXE_FORMAT ); |
| goto error; |
| } |
| |
| nt = PE_HEADER( hModule ); |
| |
| /* Check signature */ |
| if ( nt->Signature != IMAGE_NT_SIGNATURE ) |
| { |
| WARN("%s image doesn't have PE signature, but 0x%08lx\n", filename, nt->Signature ); |
| SetLastError( ERROR_BAD_EXE_FORMAT ); |
| goto error; |
| } |
| |
| /* Check architecture */ |
| if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 ) |
| { |
| MESSAGE("Trying to load PE image for unsupported architecture ("); |
| switch (nt->FileHeader.Machine) |
| { |
| case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break; |
| case IMAGE_FILE_MACHINE_I860: MESSAGE("I860"); break; |
| case IMAGE_FILE_MACHINE_R3000: MESSAGE("R3000"); break; |
| case IMAGE_FILE_MACHINE_R4000: MESSAGE("R4000"); break; |
| case IMAGE_FILE_MACHINE_R10000: MESSAGE("R10000"); break; |
| case IMAGE_FILE_MACHINE_ALPHA: MESSAGE("Alpha"); break; |
| case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break; |
| default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break; |
| } |
| MESSAGE(")\n"); |
| SetLastError( ERROR_BAD_EXE_FORMAT ); |
| goto error; |
| } |
| |
| /* Find out how large this executeable should be */ |
| pe_sec = PE_SECTIONS( hModule ); |
| rawsize = 0; lowest_va = 0x10000; |
| for (i = 0; i < nt->FileHeader.NumberOfSections; i++) |
| { |
| if (lowest_va > pe_sec[i].VirtualAddress) |
| lowest_va = pe_sec[i].VirtualAddress; |
| if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA) |
| continue; |
| if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize) |
| rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData; |
| } |
| |
| /* Check file size */ |
| if ( file_size && file_size < rawsize ) |
| { |
| ERR("PE module is too small (header: %d, filesize: %d), " |
| "probably truncated download?\n", |
| rawsize, file_size ); |
| SetLastError( ERROR_BAD_EXE_FORMAT ); |
| goto error; |
| } |
| |
| /* Check entrypoint address */ |
| aoep = nt->OptionalHeader.AddressOfEntryPoint; |
| if (aoep && (aoep < lowest_va)) |
| MESSAGE("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) " |
| "below the first virtual address (0x%08x) " |
| "(possibly infected by Tchernobyl/SpaceFiller virus)!\n", |
| filename, aoep, lowest_va ); |
| |
| |
| #if 0 |
| /* FIXME: Hack! While we don't really support shared sections yet, |
| * this checks for those special cases where the whole DLL |
| * consists only of shared sections and is mapped into the |
| * shared address space > 2GB. In this case, we assume that |
| * the module got mapped at its base address. Thus we simply |
| * check whether the module has actually been mapped there |
| * and use it, if so. This is needed to get Win95 USER32.DLL |
| * to work (until we support shared sections properly). |
| */ |
| |
| if ( nt->OptionalHeader.ImageBase & 0x80000000 ) |
| { |
| HMODULE sharedMod = (HMODULE)nt->OptionalHeader.ImageBase; |
| IMAGE_NT_HEADERS *sharedNt = (PIMAGE_NT_HEADERS) |
| ( (LPBYTE)sharedMod + ((LPBYTE)nt - (LPBYTE)hModule) ); |
| |
| /* Well, this check is not really comprehensive, |
| but should be good enough for now ... */ |
| if ( !IsBadReadPtr( (LPBYTE)sharedMod, sizeof(IMAGE_DOS_HEADER) ) |
| && memcmp( (LPBYTE)sharedMod, (LPBYTE)hModule, sizeof(IMAGE_DOS_HEADER) ) == 0 |
| && !IsBadReadPtr( sharedNt, sizeof(IMAGE_NT_HEADERS) ) |
| && memcmp( sharedNt, nt, sizeof(IMAGE_NT_HEADERS) ) == 0 ) |
| { |
| UnmapViewOfFile( (LPVOID)hModule ); |
| return sharedMod; |
| } |
| } |
| #endif |
| |
| /* Allocate memory for module */ |
| load_addr = nt->OptionalHeader.ImageBase; |
| vma_size = calc_vma_size( hModule ); |
| |
| load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size, |
| MEM_RESERVE | MEM_COMMIT, |
| PAGE_EXECUTE_READWRITE ); |
| if (load_addr == 0) |
| { |
| /* We need to perform base relocations */ |
| WARN("We need to perform base relocations for %s\n", filename); |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC; |
| if (dir->Size) |
| reloc = dir->VirtualAddress; |
| else |
| { |
| FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n", |
| filename, |
| (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)? |
| "stripped during link" : "unknown reason" ); |
| SetLastError( ERROR_BAD_EXE_FORMAT ); |
| goto error; |
| } |
| |
| /* FIXME: If we need to relocate a system DLL (base > 2GB) we should |
| * really make sure that the *new* base address is also > 2GB. |
| * Some DLLs really check the MSB of the module handle :-/ |
| */ |
| if ( nt->OptionalHeader.ImageBase & 0x80000000 ) |
| ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" ); |
| |
| load_addr = (DWORD)VirtualAlloc( NULL, vma_size, |
| MEM_RESERVE | MEM_COMMIT, |
| PAGE_EXECUTE_READWRITE ); |
| if (!load_addr) { |
| FIXME_(win32)( |
| "FATAL: Couldn't load module %s (out of memory, %d needed)!\n", filename, vma_size); |
| goto error; |
| } |
| } |
| |
| TRACE("Load addr is %lx (base %lx), range %x\n", |
| load_addr, nt->OptionalHeader.ImageBase, vma_size ); |
| TRACE_(segment)("Loading %s at %lx, range %x\n", |
| filename, load_addr, vma_size ); |
| |
| #if 0 |
| /* Store the NT header at the load addr */ |
| *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule; |
| *PE_HEADER( load_addr ) = *nt; |
| memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule), |
| sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections ); |
| |
| /* Copies all stuff up to the first section. Including win32 viruses. */ |
| memcpy( load_addr, hModule, lowest_fa ); |
| #endif |
| |
| req->handle = hFile; |
| server_call_fd( REQ_GET_READ_FD, -1, &unix_handle ); |
| if (unix_handle == -1) goto error; |
| |
| /* Map the header */ |
| if (FILE_dommap( unix_handle, (void *)load_addr, 0, nt->OptionalHeader.SizeOfHeaders, |
| 0, 0, PROT_EXEC | PROT_WRITE | PROT_READ, |
| MAP_PRIVATE | MAP_FIXED ) != (void*)load_addr) |
| { |
| ERR_(win32)( "Critical Error: failed to map PE header to necessary address.\n"); |
| goto error; |
| } |
| |
| /* Copy sections into module image */ |
| pe_sec = PE_SECTIONS( hModule ); |
| for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++) |
| { |
| if (!pe_sec->SizeOfRawData || !pe_sec->PointerToRawData) continue; |
| TRACE("%s: mmaping section %s at %p off %lx size %lx/%lx\n", |
| filename, pe_sec->Name, (void*)RVA(pe_sec->VirtualAddress), |
| pe_sec->PointerToRawData, pe_sec->SizeOfRawData, pe_sec->Misc.VirtualSize ); |
| if (FILE_dommap( unix_handle, (void*)RVA(pe_sec->VirtualAddress), |
| 0, pe_sec->SizeOfRawData, 0, pe_sec->PointerToRawData, |
| PROT_EXEC | PROT_WRITE | PROT_READ, |
| MAP_PRIVATE | MAP_FIXED ) != (void*)RVA(pe_sec->VirtualAddress)) |
| { |
| /* We failed to map to the right place (huh?) */ |
| ERR_(win32)( "Critical Error: failed to map PE section to necessary address.\n"); |
| goto error; |
| } |
| if ((pe_sec->SizeOfRawData < pe_sec->Misc.VirtualSize) && |
| (pe_sec->SizeOfRawData & (page_size-1))) |
| { |
| DWORD end = (pe_sec->SizeOfRawData & ~(page_size-1)) + page_size; |
| if (end > pe_sec->Misc.VirtualSize) end = pe_sec->Misc.VirtualSize; |
| TRACE("clearing %p - %p\n", |
| RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData, |
| RVA(pe_sec->VirtualAddress) + end ); |
| memset( (char*)RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData, 0, |
| end - pe_sec->SizeOfRawData ); |
| } |
| } |
| |
| /* Perform base relocation, if necessary */ |
| if ( reloc ) |
| do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) ); |
| |
| /* We don't need the orignal mapping any more */ |
| UnmapViewOfFile( (LPVOID)hModule ); |
| return (HMODULE)load_addr; |
| |
| error: |
| if (unix_handle != -1) close( unix_handle ); |
| if (load_addr) VirtualFree( (LPVOID)load_addr, 0, MEM_RELEASE ); |
| UnmapViewOfFile( (LPVOID)hModule ); |
| return 0; |
| } |
| |
| /********************************************************************** |
| * PE_CreateModule |
| * |
| * Create WINE_MODREF structure for loaded HMODULE32, 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. |
| */ |
| WINE_MODREF *PE_CreateModule( HMODULE hModule, |
| LPCSTR filename, DWORD flags, BOOL builtin ) |
| { |
| DWORD load_addr = (DWORD)hModule; /* for RVA */ |
| IMAGE_NT_HEADERS *nt = PE_HEADER(hModule); |
| IMAGE_DATA_DIRECTORY *dir; |
| IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL; |
| IMAGE_EXPORT_DIRECTORY *pe_export = NULL; |
| IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL; |
| WINE_MODREF *wm; |
| int result; |
| |
| |
| /* Retrieve DataDirectory entries */ |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT; |
| if (dir->Size) |
| pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT; |
| if (dir->Size) |
| pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE; |
| if (dir->Size) |
| pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(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_DEBUG; |
| if (dir->Size) TRACE("Debug directory ignored\n" ); |
| |
| dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT; |
| if (dir->Size) FIXME("Copyright string ignored\n" ); |
| |
| 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 = (PImgDelayDescr)RVA(dir->VirtualAddress); |
| TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs); |
| TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName); |
| TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod); |
| TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT); |
| TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT); |
| TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT); |
| TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT); |
| TRACE_(delayhlp)("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 */ |
| |
| wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(), |
| HEAP_ZERO_MEMORY, sizeof(*wm) ); |
| wm->module = hModule; |
| |
| if ( builtin ) |
| wm->flags |= WINE_MODREF_INTERNAL; |
| if ( flags & DONT_RESOLVE_DLL_REFERENCES ) |
| wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS; |
| if ( flags & LOAD_LIBRARY_AS_DATAFILE ) |
| wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE; |
| |
| wm->type = MODULE32_PE; |
| wm->binfmt.pe.pe_export = pe_export; |
| wm->binfmt.pe.pe_import = pe_import; |
| wm->binfmt.pe.pe_resource = pe_resource; |
| wm->binfmt.pe.tlsindex = -1; |
| |
| wm->filename = HEAP_strdupA( GetProcessHeap(), 0, filename ); |
| wm->modname = strrchr( wm->filename, '\\' ); |
| if (!wm->modname) wm->modname = wm->filename; |
| else wm->modname++; |
| |
| result = GetShortPathNameA( wm->filename, NULL, 0 ); |
| wm->short_filename = (char *)HeapAlloc( GetProcessHeap(), 0, result+1 ); |
| GetShortPathNameA( wm->filename, wm->short_filename, result+1 ); |
| wm->short_modname = strrchr( wm->short_filename, '\\' ); |
| if (!wm->short_modname) wm->short_modname = wm->short_filename; |
| else wm->short_modname++; |
| |
| /* Link MODREF into process list */ |
| |
| EnterCriticalSection( &PROCESS_Current()->crit_section ); |
| |
| wm->next = PROCESS_Current()->modref_list; |
| PROCESS_Current()->modref_list = wm; |
| if ( wm->next ) wm->next->prev = wm; |
| |
| if ( !( nt->FileHeader.Characteristics & IMAGE_FILE_DLL ) |
| && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) ) |
| |
| { |
| if ( PROCESS_Current()->exe_modref ) |
| FIXME( "Trying to load second .EXE file: %s\n", filename ); |
| else |
| PROCESS_Current()->exe_modref = wm; |
| } |
| |
| LeaveCriticalSection( &PROCESS_Current()->crit_section ); |
| |
| |
| /* Dump Exports */ |
| |
| if ( pe_export ) |
| dump_exports( hModule ); |
| |
| /* Fixup Imports */ |
| |
| if ( pe_import |
| && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) |
| && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS ) |
| && fixup_imports( wm ) ) |
| { |
| /* remove entry from modref chain */ |
| EnterCriticalSection( &PROCESS_Current()->crit_section ); |
| |
| if ( !wm->prev ) |
| PROCESS_Current()->modref_list = wm->next; |
| else |
| wm->prev->next = wm->next; |
| |
| if ( wm->next ) wm->next->prev = wm->prev; |
| wm->next = wm->prev = NULL; |
| |
| LeaveCriticalSection( &PROCESS_Current()->crit_section ); |
| |
| /* 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 it them lying |
| * around with no problems, so we don't care. |
| * As these might reference our wm, we don't free it. |
| */ |
| return NULL; |
| } |
| |
| return wm; |
| } |
| |
| /****************************************************************************** |
| * The PE Library Loader frontend. |
| * FIXME: handle the flags. |
| */ |
| WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags) |
| { |
| struct load_dll_request *req = get_req_buffer(); |
| HMODULE hModule32; |
| HMODULE16 hModule16; |
| WINE_MODREF *wm; |
| char filename[256]; |
| HANDLE hFile; |
| |
| /* Search for and open PE file */ |
| if ( SearchPathA( NULL, name, ".DLL", |
| sizeof(filename), filename, NULL ) == 0 ) return NULL; |
| |
| hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ, |
| NULL, OPEN_EXISTING, 0, -1 ); |
| if ( hFile == INVALID_HANDLE_VALUE ) return NULL; |
| |
| /* Load PE module */ |
| hModule32 = PE_LoadImage( hFile, filename ); |
| if (!hModule32) |
| { |
| CloseHandle( hFile ); |
| return NULL; |
| } |
| |
| /* Create 16-bit dummy module */ |
| if ((hModule16 = MODULE_CreateDummyModule( filename, hModule32 )) < 32) |
| { |
| CloseHandle( hFile ); |
| SetLastError( (DWORD)hModule16 ); /* This should give the correct error */ |
| return NULL; |
| } |
| |
| /* Create 32-bit MODREF */ |
| if ( !(wm = PE_CreateModule( hModule32, filename, flags, FALSE )) ) |
| { |
| ERR( "can't load %s\n", filename ); |
| FreeLibrary16( hModule16 ); |
| CloseHandle( hFile ); |
| SetLastError( ERROR_OUTOFMEMORY ); |
| return NULL; |
| } |
| |
| if (wm->binfmt.pe.pe_export) |
| SNOOP_RegisterDLL(wm->module,wm->modname,wm->binfmt.pe.pe_export->NumberOfFunctions); |
| req->handle = hFile; |
| req->base = (void *)hModule32; |
| req->dbg_offset = PE_HEADER(hModule32)->FileHeader.PointerToSymbolTable; |
| req->dbg_size = PE_HEADER(hModule32)->FileHeader.NumberOfSymbols; |
| req->name = &wm->filename; |
| server_call_noerr( REQ_LOAD_DLL ); |
| CloseHandle( hFile ); |
| return wm; |
| } |
| |
| |
| /***************************************************************************** |
| * PE_UnloadLibrary |
| * |
| * Unload the library unmapping the image and freeing the modref structure. |
| */ |
| void PE_UnloadLibrary(WINE_MODREF *wm) |
| { |
| TRACE(" unloading %s\n", wm->filename); |
| /* VirtualFree( (LPVOID)wm->module, 0, MEM_RELEASE ); */ /* FIXME */ |
| HeapFree( GetProcessHeap(), 0, wm->filename ); |
| HeapFree( GetProcessHeap(), 0, wm->short_filename ); |
| HeapFree( GetProcessHeap(), 0, wm ); |
| } |
| |
| |
| /* Called if the library is loaded or freed. |
| * NOTE: if a thread attaches a DLL, the current thread will only do |
| * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH |
| * (SDK) |
| */ |
| BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved ) |
| { |
| BOOL retv = TRUE; |
| assert( wm->type == MODULE32_PE ); |
| |
| /* Is this a library? And has it got an entrypoint? */ |
| if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) && |
| (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint) |
| ) { |
| DLLENTRYPROC entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint ); |
| TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)\n", |
| entry, wm->module, type, lpReserved ); |
| |
| retv = entry( wm->module, type, lpReserved ); |
| } |
| |
| return retv; |
| } |
| |
| /************************************************************************ |
| * PE_InitTls (internal) |
| * |
| * If included, initialises the thread local storages of modules. |
| * Pointers in those structs are not RVAs but real pointers which have been |
| * relocated by do_relocations() already. |
| */ |
| static LPVOID |
| _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) { |
| if ( ((DWORD)addr>opt->ImageBase) && |
| ((DWORD)addr<opt->ImageBase+opt->SizeOfImage) |
| ) |
| /* the address has not been relocated! */ |
| return (LPVOID)(((DWORD)addr)+delta); |
| else |
| /* the address has been relocated already */ |
| return addr; |
| } |
| void PE_InitTls( void ) |
| { |
| WINE_MODREF *wm; |
| PE_MODREF *pem; |
| IMAGE_NT_HEADERS *peh; |
| DWORD size,datasize; |
| LPVOID mem; |
| PIMAGE_TLS_DIRECTORY pdir; |
| int delta; |
| |
| for (wm = PROCESS_Current()->modref_list;wm;wm=wm->next) { |
| if (wm->type!=MODULE32_PE) |
| continue; |
| pem = &(wm->binfmt.pe); |
| peh = PE_HEADER(wm->module); |
| delta = wm->module - peh->OptionalHeader.ImageBase; |
| if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress) |
| continue; |
| pdir = (LPVOID)(wm->module + peh->OptionalHeader. |
| DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress); |
| |
| |
| if ( pem->tlsindex == -1 ) { |
| LPDWORD xaddr; |
| pem->tlsindex = TlsAlloc(); |
| xaddr = _fixup_address(&(peh->OptionalHeader),delta, |
| pdir->AddressOfIndex |
| ); |
| *xaddr=pem->tlsindex; |
| } |
| datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData; |
| size = datasize + pdir->SizeOfZeroFill; |
| mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE); |
| memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize); |
| if (pdir->AddressOfCallBacks) { |
| PIMAGE_TLS_CALLBACK *cbs; |
| |
| cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks); |
| if (*cbs) |
| FIXME("TLS Callbacks aren't going to be called\n"); |
| } |
| |
| TlsSetValue( pem->tlsindex, mem ); |
| } |
| } |
| |
