loader/pe_image.c

   1 /*
   2  *  Copyright   1994    Eric Youndale & Erik Bos
   3  *  Copyright   1995    Martin von Löwis
   4  *  Copyright   1996-98 Marcus Meissner
   5  *
   6  *      based on Eric Youndale's pe-test and:
   7  *
   8  *      ftp.microsoft.com:/pub/developer/MSDN/CD8/PEFILE.ZIP
   9  * make that:
  10  *      ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
  11  */
  12 /* Notes:
  13  * Before you start changing something in this file be aware of the following:
  14  *
  15  * - There are several functions called recursively. In a very subtle and
  16  *   obscure way. DLLs can reference each other recursively etc.
  17  * - If you want to enhance, speed up or clean up something in here, think
  18  *   twice WHY it is implemented in that strange way. There is usually a reason.
  19  *   Though sometimes it might just be lazyness ;)
  20  * - In PE_MapImage, right before fixup_imports() all external and internal
  21  *   state MUST be correct since this function can be called with the SAME image
  22  *   AGAIN. (Thats recursion for you.) That means MODREF.module and
  23  *   NE_MODULE.module32.
  24  */
  25
  26 #include "config.h"
  27
  28 #include <sys/types.h>
  29 #ifdef HAVE_SYS_MMAN_H
  30 #include <sys/mman.h>
  31 #endif
  32 #include <string.h>
  33 #include "wine/winbase16.h"
  34 #include "winerror.h"
  35 #include "snoop.h"
  36 #include "wine/server.h"
  37 #include "debugtools.h"
  38
  39 DEFAULT_DEBUG_CHANNEL(win32);
  40 DECLARE_DEBUG_CHANNEL(delayhlp);
  41 DECLARE_DEBUG_CHANNEL(fixup);
  42 DECLARE_DEBUG_CHANNEL(module);
  43 DECLARE_DEBUG_CHANNEL(relay);
  44 DECLARE_DEBUG_CHANNEL(segment);
  45
  46
  47 static IMAGE_EXPORT_DIRECTORY *get_exports( HMODULE hmod )
  48 {
  49     IMAGE_EXPORT_DIRECTORY *ret = NULL;
  50     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  51                                 + IMAGE_DIRECTORY_ENTRY_EXPORT;
  52     if (dir->Size && dir->VirtualAddress)
  53         ret = (IMAGE_EXPORT_DIRECTORY *)((char *)hmod + dir->VirtualAddress);
  54     return ret;
  55 }
  56
  57 static IMAGE_IMPORT_DESCRIPTOR *get_imports( HMODULE hmod )
  58 {
  59     IMAGE_IMPORT_DESCRIPTOR *ret = NULL;
  60     IMAGE_DATA_DIRECTORY *dir = PE_HEADER(hmod)->OptionalHeader.DataDirectory
  61                                 + IMAGE_DIRECTORY_ENTRY_IMPORT;
  62     if (dir->Size && dir->VirtualAddress)
  63         ret = (IMAGE_IMPORT_DESCRIPTOR *)((char *)hmod + dir->VirtualAddress);
  64     return ret;
  65 }
  66
  67
  68 /* convert PE image VirtualAddress to Real Address */
  69 #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
  70
  71 #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
  72
  73 void dump_exports( HMODULE hModule )
  74 {
  75   char          *Module;
  76   int           i, j;
  77   WORD          *ordinal;
  78   DWORD         *function,*functions;
  79   BYTE          **name;
  80   unsigned int load_addr = hModule;
  81
  82   DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
  83                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
  84   DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
  85                    .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
  86   IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
  87
  88   Module = (char*)RVA(pe_exports->Name);
  89   TRACE("*******EXPORT DATA*******\n");
  90   TRACE("Module name is %s, %ld functions, %ld names\n",
  91         Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
  92
  93   ordinal = RVA(pe_exports->AddressOfNameOrdinals);
  94   functions = function = RVA(pe_exports->AddressOfFunctions);
  95   name = RVA(pe_exports->AddressOfNames);
  96
  97   TRACE(" Ord    RVA     Addr   Name\n" );
  98   for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
  99   {
 100       if (!*function) continue;  /* No such function */
 101       if (TRACE_ON(win32))
 102       {
 103         DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
 104         /* Check if we have a name for it */
 105         for (j = 0; j < pe_exports->NumberOfNames; j++)
 106           if (ordinal[j] == i)
 107           {
 108               DPRINTF( "  %s", (char*)RVA(name[j]) );
 109               break;
 110           }
 111         if ((*function >= rva_start) && (*function <= rva_end))
 112           DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
 113         DPRINTF("\n");
 114       }
 115   }
 116 }
 117
 118 /* Look up the specified function or ordinal in the export list:
 119  * If it is a string:
 120  *      - look up the name in the name list.
 121  *      - look up the ordinal with that index.
 122  *      - use the ordinal as offset into the functionlist
 123  * If it is an ordinal:
 124  *      - use ordinal-pe_export->Base as offset into the function list
 125  */
 126 static FARPROC PE_FindExportedFunction(
 127         WINE_MODREF *wm,        /* [in] WINE modreference */
 128         LPCSTR funcName,        /* [in] function name */
 129         BOOL snoop )
 130 {
 131         WORD                            * ordinals;
 132         DWORD                           * function;
 133         BYTE                            ** name, *ename = NULL;
 134         int                             i, ordinal;
 135         unsigned int                    load_addr = wm->module;
 136         DWORD                           rva_start, rva_end, addr;
 137         char                            * forward;
 138         IMAGE_EXPORT_DIRECTORY *exports = get_exports(wm->module);
 139
 140         if (HIWORD(funcName))
 141                 TRACE("(%s)\n",funcName);
 142         else
 143                 TRACE("(%d)\n",(int)funcName);
 144         if (!exports) {
 145                 /* Not a fatal problem, some apps do
 146                  * GetProcAddress(0,"RegisterPenApp") which triggers this
 147                  * case.
 148                  */
 149                 WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.\n",wm->module,wm->modname,wm);
 150                 return NULL;
 151         }
 152         ordinals= RVA(exports->AddressOfNameOrdinals);
 153         function= RVA(exports->AddressOfFunctions);
 154         name    = RVA(exports->AddressOfNames);
 155         forward = NULL;
 156         rva_start = PE_HEADER(wm->module)->OptionalHeader
 157                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
 158         rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
 159                 .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
 160
 161         if (HIWORD(funcName))
 162         {
 163             /* first try a binary search */
 164             int min = 0, max = exports->NumberOfNames - 1;
 165             while (min <= max)
 166             {
 167                 int res, pos = (min + max) / 2;
 168                 ename = RVA(name[pos]);
 169                 if (!(res = strcmp( ename, funcName )))
 170                 {
 171                     ordinal = ordinals[pos];
 172                     goto found;
 173                 }
 174                 if (res > 0) max = pos - 1;
 175                 else min = pos + 1;
 176             }
 177             /* now try a linear search in case the names aren't sorted properly */
 178             for (i = 0; i < exports->NumberOfNames; i++)
 179             {
 180                 ename = RVA(name[i]);
 181                 if (!strcmp( ename, funcName ))
 182                 {
 183                     ERR( "%s.%s required a linear search\n", wm->modname, funcName );
 184                     ordinal = ordinals[i];
 185                     goto found;
 186                 }
 187             }
 188             return NULL;
 189         }
 190         else  /* find by ordinal */
 191         {
 192             ordinal = LOWORD(funcName) - exports->Base;
 193             if (snoop && name)  /* need to find a name for it */
 194             {
 195                 for (i = 0; i < exports->NumberOfNames; i++)
 196                     if (ordinals[i] == ordinal)
 197                     {
 198                         ename = RVA(name[i]);
 199                         break;
 200                     }
 201             }
 202         }
 203
 204  found:
 205         if (ordinal >= exports->NumberOfFunctions)
 206         {
 207             TRACE("     ordinal %ld out of range!\n", ordinal + exports->Base );
 208             return NULL;
 209         }
 210         addr = function[ordinal];
 211         if (!addr) return NULL;
 212         if ((addr < rva_start) || (addr >= rva_end))
 213         {
 214             FARPROC proc = RVA(addr);
 215             if (snoop)
 216             {
 217                 if (!ename) ename = "@";
 218                 proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
 219             }
 220             return proc;
 221         }
 222         else  /* forward entry point */
 223         {
 224                 WINE_MODREF *wm_fw;
 225                 FARPROC proc;
 226                 char *forward = RVA(addr);
 227                 char module[256];
 228                 char *end = strchr(forward, '.');
 229
 230                 if (!end) return NULL;
 231                 if (end - forward >= sizeof(module)) return NULL;
 232                 memcpy( module, forward, end - forward );
 233                 module[end-forward] = 0;
 234                 if (!(wm_fw = MODULE_FindModule( module )))
 235                 {
 236                     ERR("module not found for forward '%s' used by '%s'\n", forward, wm->modname );
 237                     return NULL;
 238                 }
 239                 if (!(proc = MODULE_GetProcAddress( wm_fw->module, end + 1, snoop )))
 240                     ERR("function not found for forward '%s' used by '%s'. If you are using builtin '%s', try using the native one instead.\n", forward, wm->modname, wm->modname );
 241                 return proc;
 242         }
 243 }
 244
 245 DWORD fixup_imports( WINE_MODREF *wm )
 246 {
 247     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 248     unsigned int load_addr      = wm->module;
 249     int                         i,characteristics_detection=1;
 250     IMAGE_IMPORT_DESCRIPTOR *imports = get_imports(wm->module);
 251
 252     /* first, count the number of imported non-internal modules */
 253     pe_imp = imports;
 254     if (!pe_imp) return 0;
 255
 256     /* OK, now dump the import list */
 257     TRACE("Dumping imports list\n");
 258
 259     /* We assume that we have at least one import with !0 characteristics and
 260      * detect broken imports with all characteristics 0 (notably Borland) and
 261      * switch the detection off for them.
 262      */
 263     for (i = 0; pe_imp->Name ; pe_imp++) {
 264         if (!i && !pe_imp->u.Characteristics)
 265                 characteristics_detection = 0;
 266         if (characteristics_detection && !pe_imp->u.Characteristics)
 267                 break;
 268         i++;
 269     }
 270     if (!i) return 0;  /* no imports */
 271
 272     /* Allocate module dependency list */
 273     wm->nDeps = i;
 274     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 275
 276     /* load the imported modules. They are automatically
 277      * added to the modref list of the process.
 278      */
 279
 280     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 281         WINE_MODREF             *wmImp;
 282         IMAGE_IMPORT_BY_NAME    *pe_name;
 283         PIMAGE_THUNK_DATA       import_list,thunk_list;
 284         char                    *name = (char *) RVA(pe_imp->Name);
 285
 286         if (characteristics_detection && !pe_imp->u.Characteristics)
 287                 break;
 288
 289         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 290         if (!wmImp) {
 291             ERR_(module)("Module (file) %s needed by %s not found\n", name, wm->filename);
 292             return 1;
 293         }
 294         wm->deps[i++] = wmImp;
 295
 296         /* FIXME: forwarder entries ... */
 297
 298         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 299             TRACE("Microsoft style imports used\n");
 300             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 301             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 302
 303             while (import_list->u1.Ordinal) {
 304                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 305                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 306
 307                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 308                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 309                         wmImp->module, (LPCSTR)ordinal, TRUE
 310                     );
 311                     if (!thunk_list->u1.Function) {
 312                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 313                                 name, ordinal, wm->filename );
 314                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 315                     }
 316                 } else {                /* import by name */
 317                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 318                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 319                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 320                         wmImp->module, pe_name->Name, TRUE
 321                     );
 322                     if (!thunk_list->u1.Function) {
 323                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 324                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 325                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 326                     }
 327                 }
 328                 import_list++;
 329                 thunk_list++;
 330             }
 331         } else {        /* Borland style */
 332             TRACE("Borland style imports used\n");
 333             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 334             while (thunk_list->u1.Ordinal) {
 335                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 336                     /* not sure about this branch, but it seems to work */
 337                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 338
 339                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 340                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 341                         wmImp->module, (LPCSTR) ordinal, TRUE
 342                     );
 343                     if (!thunk_list->u1.Function) {
 344                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 345                                 name,ordinal, wm->filename);
 346                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 347                     }
 348                 } else {
 349                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 350                     TRACE("--- %s %s.%d\n",
 351                                   pe_name->Name,name,pe_name->Hint);
 352                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 353                         wmImp->module, pe_name->Name, TRUE
 354                     );
 355                     if (!thunk_list->u1.Function) {
 356                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 357                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 358                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 359                     }
 360                 }
 361                 thunk_list++;
 362             }
 363         }
 364     }
 365     return 0;
 366 }
 367
 368 /***********************************************************************
 369  *           do_relocations
 370  *
 371  * Apply the relocations to a mapped PE image
 372  */
 373 static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *filename )
 374 {
 375     const IMAGE_DATA_DIRECTORY *dir;
 376     const IMAGE_BASE_RELOCATION *rel;
 377     int delta = base - (char *)nt->OptionalHeader.ImageBase;
 378
 379     dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 380     rel = (IMAGE_BASE_RELOCATION *)(base + dir->VirtualAddress);
 381
 382     WARN("Info: base relocations needed for %s\n", filename);
 383     if (!dir->VirtualAddress || !dir->Size)
 384     {
 385         if (nt->OptionalHeader.ImageBase == 0x400000)
 386             ERR("Standard load address for a Win32 program (0x00400000) not available - patched kernel ?\n");
 387         ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 388              filename,
 389              (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 390              "stripped during link" : "unknown reason" );
 391         return 0;
 392     }
 393
 394     /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 395      *        really make sure that the *new* base address is also > 2GB.
 396      *        Some DLLs really check the MSB of the module handle :-/
 397      */
 398     if ((nt->OptionalHeader.ImageBase & 0x80000000) && !((DWORD)base & 0x80000000))
 399         ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 400
 401     for ( ; ((char *)rel < base + dir->VirtualAddress + dir->Size) && rel->VirtualAddress;
 402           rel = (IMAGE_BASE_RELOCATION*)((char*)rel + rel->SizeOfBlock))
 403     {
 404         char *page = base + rel->VirtualAddress;
 405         int i, count = (rel->SizeOfBlock - 8) / sizeof(rel->TypeOffset);
 406
 407         if (!count) continue;
 408
 409         /* sanity checks */
 410         if ((char *)rel + rel->SizeOfBlock > base + dir->VirtualAddress + dir->Size ||
 411             page > base + nt->OptionalHeader.SizeOfImage)
 412         {
 413             ERR_(module)("invalid relocation %p,%lx,%ld at %p,%lx,%lx\n",
 414                          rel, rel->VirtualAddress, rel->SizeOfBlock,
 415                          base, dir->VirtualAddress, dir->Size );
 416             return 0;
 417         }
 418
 419         TRACE_(module)("%ld relocations for page %lx\n", rel->SizeOfBlock, rel->VirtualAddress);
 420
 421         /* patching in reverse order */
 422         for (i = 0 ; i < count; i++)
 423         {
 424             int offset = rel->TypeOffset[i] & 0xFFF;
 425             int type = rel->TypeOffset[i] >> 12;
 426             switch(type)
 427             {
 428             case IMAGE_REL_BASED_ABSOLUTE:
 429                 break;
 430             case IMAGE_REL_BASED_HIGH:
 431                 *(short*)(page+offset) += HIWORD(delta);
 432                 break;
 433             case IMAGE_REL_BASED_LOW:
 434                 *(short*)(page+offset) += LOWORD(delta);
 435                 break;
 436             case IMAGE_REL_BASED_HIGHLOW:
 437                 *(int*)(page+offset) += delta;
 438                 /* FIXME: if this is an exported address, fire up enhanced logic */
 439                 break;
 440             default:
 441                 FIXME_(module)("Unknown/unsupported fixup type %d.\n", type);
 442                 break;
 443             }
 444         }
 445     }
 446     return 1;
 447 }
 448
 449
 450 /**********************************************************************
 451  *                      PE_LoadImage
 452  * Load one PE format DLL/EXE into memory
 453  *
 454  * Unluckily we can't just mmap the sections where we want them, for
 455  * (at least) Linux does only support offsets which are page-aligned.
 456  *
 457  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 458  * want to access them. (HMODULE points to the start of it)
 459  */
 460 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 461 {
 462     IMAGE_NT_HEADERS *nt;
 463     HMODULE hModule;
 464     HANDLE mapping;
 465     void *base;
 466
 467     TRACE_(module)( "loading %s\n", filename );
 468
 469     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 470     if (!mapping) return 0;
 471     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 472     CloseHandle( mapping );
 473     if (!base) return 0;
 474
 475     hModule = (HMODULE)base;
 476     if (flags & LOAD_LIBRARY_AS_DATAFILE) return hModule;  /* nothing else to do */
 477
 478     /* perform base relocation, if necessary */
 479
 480     nt = PE_HEADER( hModule );
 481     if (hModule != nt->OptionalHeader.ImageBase)
 482     {
 483         if (!do_relocations( base, nt, filename ))
 484         {
 485             UnmapViewOfFile( base );
 486             SetLastError( ERROR_BAD_EXE_FORMAT );
 487             return 0;
 488         }
 489     }
 490
 491     /* virus check */
 492
 493     if (nt->OptionalHeader.AddressOfEntryPoint)
 494     {
 495         int i;
 496         IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
 497                                                             nt->FileHeader.SizeOfOptionalHeader);
 498         for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
 499         {
 500             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress)
 501                 continue;
 502             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress+sec->SizeOfRawData)
 503                 break;
 504         }
 505         if (i == nt->FileHeader.NumberOfSections)
 506             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 507                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 508                     nt->OptionalHeader.AddressOfEntryPoint );
 509     }
 510
 511     return hModule;
 512 }
 513
 514 /**********************************************************************
 515  *                 PE_CreateModule
 516  *
 517  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 518  * process modref_list, and fixup all imports.
 519  *
 520  * Note: hModule must point to a correctly allocated PE image,
 521  *       with base relocations applied; the 16-bit dummy module
 522  *       associated to hModule must already exist.
 523  *
 524  * Note: This routine must always be called in the context of the
 525  *       process that is to own the module to be created.
 526  *
 527  * Note: Assumes that the process critical section is held
 528  */
 529 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 530                               HANDLE hFile, BOOL builtin )
 531 {
 532     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 533     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 534     IMAGE_DATA_DIRECTORY *dir;
 535     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 536     WINE_MODREF *wm;
 537     HMODULE16 hModule16;
 538
 539     /* Retrieve DataDirectory entries */
 540
 541     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 542     if (dir->Size)
 543         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 544
 545     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 546     if (dir->Size) FIXME("Exception directory ignored\n" );
 547
 548     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 549     if (dir->Size) FIXME("Security directory ignored\n" );
 550
 551     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 552     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 553
 554     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 555     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 556
 557     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 558
 559     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 560     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 561
 562     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 563     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 564
 565     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 566     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 567
 568     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 569     if (dir->Size)
 570     {
 571                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 572                 /*
 573                  * Nothing to do here.
 574                  */
 575
 576 #ifdef ImgDelayDescr
 577                 /*
 578                  * This code is useful to observe what the heck is going on.
 579                  */
 580                 {
 581                 ImgDelayDescr *pe_delay = NULL;
 582         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 583         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 584         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 585         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 586         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 587         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 588         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 589         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 590         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 591         }
 592 #endif /* ImgDelayDescr */
 593         }
 594
 595     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 596     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 597
 598     dir = nt->OptionalHeader.DataDirectory+15;
 599     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 600
 601     /* Create 16-bit dummy module */
 602
 603     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 604     {
 605         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 606         return NULL;
 607     }
 608
 609     /* Allocate and fill WINE_MODREF */
 610
 611     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 612     {
 613         FreeLibrary16( hModule16 );
 614         return NULL;
 615     }
 616     wm->hDummyMod = hModule16;
 617
 618     if ( builtin )
 619     {
 620         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 621         pModule->flags |= NE_FFLAGS_BUILTIN;
 622         wm->flags |= WINE_MODREF_INTERNAL;
 623     }
 624     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 625         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 626
 627     wm->find_export = PE_FindExportedFunction;
 628
 629     /* Dump Exports */
 630
 631     if ( pe_export )
 632         dump_exports( hModule );
 633
 634     /* Fixup Imports */
 635
 636     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) && fixup_imports( wm ))
 637     {
 638         /* remove entry from modref chain */
 639
 640         if ( !wm->prev )
 641             MODULE_modref_list = wm->next;
 642         else
 643             wm->prev->next = wm->next;
 644
 645         if ( wm->next ) wm->next->prev = wm->prev;
 646         wm->next = wm->prev = NULL;
 647
 648         /* FIXME: there are several more dangling references
 649          * left. Including dlls loaded by this dll before the
 650          * failed one. Unrolling is rather difficult with the
 651          * current structure and we can leave it them lying
 652          * around with no problems, so we don't care.
 653          * As these might reference our wm, we don't free it.
 654          */
 655          return NULL;
 656     }
 657
 658     if (!builtin && pe_export)
 659         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 660
 661     /* Send DLL load event */
 662     /* we don't need to send a dll event for the main exe */
 663
 664     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 665     {
 666         SERVER_START_REQ( load_dll )
 667         {
 668             req->handle     = hFile;
 669             req->base       = (void *)hModule;
 670             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 671             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 672             req->name       = &wm->filename;
 673             SERVER_CALL();
 674         }
 675         SERVER_END_REQ;
 676     }
 677
 678     return wm;
 679 }
 680
 681 /******************************************************************************
 682  * The PE Library Loader frontend.
 683  * FIXME: handle the flags.
 684  */
 685 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 686 {
 687         HMODULE         hModule32;
 688         WINE_MODREF     *wm;
 689         HANDLE          hFile;
 690
 691         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 692                              NULL, OPEN_EXISTING, 0, 0 );
 693         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 694
 695         /* Load PE module */
 696         hModule32 = PE_LoadImage( hFile, name, flags );
 697         if (!hModule32)
 698         {
 699                 CloseHandle( hFile );
 700                 return NULL;
 701         }
 702
 703         /* Create 32-bit MODREF */
 704         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 705         {
 706                 ERR( "can't load %s\n", name );
 707                 CloseHandle( hFile );
 708                 SetLastError( ERROR_OUTOFMEMORY );
 709                 return NULL;
 710         }
 711
 712         CloseHandle( hFile );
 713         return wm;
 714 }
 715
 716
 717 /* Called if the library is loaded or freed.
 718  * NOTE: if a thread attaches a DLL, the current thread will only do
 719  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 720  * (SDK)
 721  */
 722 typedef DWORD CALLBACK(*DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 723
 724 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 725 {
 726     BOOL retv = TRUE;
 727     IMAGE_NT_HEADERS *nt = PE_HEADER(module);
 728
 729     /* Is this a library? And has it got an entrypoint? */
 730     if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 731         (nt->OptionalHeader.AddressOfEntryPoint))
 732     {
 733         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 734         if (TRACE_ON(relay))
 735             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%08x,type=%ld,res=%p)\n",
 736                     GetCurrentThreadId(), entry, module, type, lpReserved );
 737         retv = entry( module, type, lpReserved );
 738         if (TRACE_ON(relay))
 739             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%08x,type=%ld,res=%p) retval=%x\n",
 740                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 741     }
 742
 743     return retv;
 744 }
 745
 746 /************************************************************************
 747  *      PE_InitTls                      (internal)
 748  *
 749  * If included, initialises the thread local storages of modules.
 750  * Pointers in those structs are not RVAs but real pointers which have been
 751  * relocated by do_relocations() already.
 752  */
 753 static LPVOID
 754 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 755         if (    ((DWORD)addr>opt->ImageBase) &&
 756                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 757         )
 758                 /* the address has not been relocated! */
 759                 return (LPVOID)(((DWORD)addr)+delta);
 760         else
 761                 /* the address has been relocated already */
 762                 return addr;
 763 }
 764 void PE_InitTls( void )
 765 {
 766         WINE_MODREF             *wm;
 767         IMAGE_NT_HEADERS        *peh;
 768         DWORD                   size,datasize;
 769         LPVOID                  mem;
 770         PIMAGE_TLS_DIRECTORY    pdir;
 771         int delta;
 772
 773         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 774                 peh = PE_HEADER(wm->module);
 775                 delta = wm->module - peh->OptionalHeader.ImageBase;
 776                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 777                         continue;
 778                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 779                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 780
 781
 782                 if ( wm->tlsindex == -1 ) {
 783                         LPDWORD xaddr;
 784                         wm->tlsindex = TlsAlloc();
 785                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 786                                         pdir->AddressOfIndex
 787                         );
 788                         *xaddr=wm->tlsindex;
 789                 }
 790                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 791                 size    = datasize + pdir->SizeOfZeroFill;
 792                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 793                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 794                 if (pdir->AddressOfCallBacks) {
 795                      PIMAGE_TLS_CALLBACK *cbs;
 796
 797                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 798                      if (*cbs)
 799                        FIXME("TLS Callbacks aren't going to be called\n");
 800                 }
 801
 802                 TlsSetValue( wm->tlsindex, mem );
 803         }
 804 }
 805