git.oblomov.eu Git - wine/blob - 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 PE_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 /****************************************************************
 246  *      PE_fixup_imports
 247  */
 248 DWORD PE_fixup_imports( WINE_MODREF *wm )
 249 {
 250     IMAGE_IMPORT_DESCRIPTOR     *pe_imp;
 251     unsigned int load_addr      = wm->module;
 252     int                         i,characteristics_detection=1;
 253     IMAGE_IMPORT_DESCRIPTOR *imports = get_imports(wm->module);
 254
 255     /* first, count the number of imported non-internal modules */
 256     pe_imp = imports;
 257     if (!pe_imp) return 0;
 258
 259     /* OK, now dump the import list */
 260     TRACE("Dumping imports list\n");
 261
 262     /* We assume that we have at least one import with !0 characteristics and
 263      * detect broken imports with all characteristics 0 (notably Borland) and
 264      * switch the detection off for them.
 265      */
 266     for (i = 0; pe_imp->Name ; pe_imp++) {
 267         if (!i && !pe_imp->u.Characteristics)
 268                 characteristics_detection = 0;
 269         if (characteristics_detection && !pe_imp->u.Characteristics)
 270                 break;
 271         i++;
 272     }
 273     if (!i) return 0;  /* no imports */
 274
 275     /* Allocate module dependency list */
 276     wm->nDeps = i;
 277     wm->deps  = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
 278
 279     /* load the imported modules. They are automatically
 280      * added to the modref list of the process.
 281      */
 282
 283     for (i = 0, pe_imp = imports; pe_imp->Name ; pe_imp++) {
 284         WINE_MODREF             *wmImp;
 285         IMAGE_IMPORT_BY_NAME    *pe_name;
 286         PIMAGE_THUNK_DATA       import_list,thunk_list;
 287         char                    *name = (char *) RVA(pe_imp->Name);
 288
 289         if (characteristics_detection && !pe_imp->u.Characteristics)
 290                 break;
 291
 292         wmImp = MODULE_LoadLibraryExA( name, 0, 0 );
 293         if (!wmImp) {
 294             ERR_(module)("Module (file) %s (which is needed by %s) not found\n", name, wm->filename);
 295             return 1;
 296         }
 297         wm->deps[i++] = wmImp;
 298
 299         /* FIXME: forwarder entries ... */
 300
 301         if (pe_imp->u.OriginalFirstThunk != 0) { /* original MS style */
 302             TRACE("Microsoft style imports used\n");
 303             import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
 304             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 305
 306             while (import_list->u1.Ordinal) {
 307                 if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
 308                     int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
 309
 310                     TRACE("--- Ordinal %s,%d\n", name, ordinal);
 311                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 312                         wmImp->module, (LPCSTR)ordinal, TRUE
 313                     );
 314                     if (!thunk_list->u1.Function) {
 315                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 316                                 name, ordinal, wm->filename );
 317                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 318                     }
 319                 } else {                /* import by name */
 320                     pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
 321                     TRACE("--- %s %s.%d\n", pe_name->Name, name, pe_name->Hint);
 322                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 323                         wmImp->module, pe_name->Name, TRUE
 324                     );
 325                     if (!thunk_list->u1.Function) {
 326                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 327                                 name,pe_name->Hint,pe_name->Name,wm->filename);
 328                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 329                     }
 330                 }
 331                 import_list++;
 332                 thunk_list++;
 333             }
 334         } else {        /* Borland style */
 335             TRACE("Borland style imports used\n");
 336             thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
 337             while (thunk_list->u1.Ordinal) {
 338                 if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
 339                     /* not sure about this branch, but it seems to work */
 340                     int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
 341
 342                     TRACE("--- Ordinal %s.%d\n",name,ordinal);
 343                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 344                         wmImp->module, (LPCSTR) ordinal, TRUE
 345                     );
 346                     if (!thunk_list->u1.Function) {
 347                         ERR("No implementation for %s.%d imported from %s, setting to 0xdeadbeef\n",
 348                                 name,ordinal, wm->filename);
 349                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 350                     }
 351                 } else {
 352                     pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
 353                     TRACE("--- %s %s.%d\n",
 354                                   pe_name->Name,name,pe_name->Hint);
 355                     thunk_list->u1.Function=(PDWORD)MODULE_GetProcAddress(
 356                         wmImp->module, pe_name->Name, TRUE
 357                     );
 358                     if (!thunk_list->u1.Function) {
 359                         ERR("No implementation for %s.%d(%s) imported from %s, setting to 0xdeadbeef\n",
 360                                 name, pe_name->Hint, pe_name->Name, wm->filename);
 361                         thunk_list->u1.Function = (PDWORD)0xdeadbeef;
 362                     }
 363                 }
 364                 thunk_list++;
 365             }
 366         }
 367     }
 368     return 0;
 369 }
 370
 371 /***********************************************************************
 372  *           do_relocations
 373  *
 374  * Apply the relocations to a mapped PE image
 375  */
 376 static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *filename )
 377 {
 378     const IMAGE_DATA_DIRECTORY *dir;
 379     const IMAGE_BASE_RELOCATION *rel;
 380     int delta = base - (char *)nt->OptionalHeader.ImageBase;
 381
 382     dir = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
 383     rel = (IMAGE_BASE_RELOCATION *)(base + dir->VirtualAddress);
 384
 385     WARN("Info: base relocations needed for %s\n", filename);
 386     if (!dir->VirtualAddress || !dir->Size)
 387     {
 388         if (nt->OptionalHeader.ImageBase == 0x400000)
 389             ERR("Standard load address for a Win32 program (0x00400000) not available - security-patched kernel ?\n");
 390         ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
 391              filename,
 392              (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
 393              "stripped during link" : "unknown reason" );
 394         return 0;
 395     }
 396
 397     /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
 398      *        really make sure that the *new* base address is also > 2GB.
 399      *        Some DLLs really check the MSB of the module handle :-/
 400      */
 401     if ((nt->OptionalHeader.ImageBase & 0x80000000) && !((DWORD)base & 0x80000000))
 402         ERR( "Forced to relocate system DLL (base > 2GB). This is not good.\n" );
 403
 404     for ( ; ((char *)rel < base + dir->VirtualAddress + dir->Size) && rel->VirtualAddress;
 405           rel = (IMAGE_BASE_RELOCATION*)((char*)rel + rel->SizeOfBlock))
 406     {
 407         char *page = base + rel->VirtualAddress;
 408         WORD *TypeOffset = (WORD *)(rel + 1);
 409         int i, count = (rel->SizeOfBlock - sizeof(*rel)) / sizeof(*TypeOffset);
 410
 411         if (!count) continue;
 412
 413         /* sanity checks */
 414         if ((char *)rel + rel->SizeOfBlock > base + dir->VirtualAddress + dir->Size ||
 415             page > base + nt->OptionalHeader.SizeOfImage)
 416         {
 417             ERR_(module)("invalid relocation %p,%lx,%ld at %p,%lx,%lx\n",
 418                          rel, rel->VirtualAddress, rel->SizeOfBlock,
 419                          base, dir->VirtualAddress, dir->Size );
 420             return 0;
 421         }
 422
 423         TRACE_(module)("%ld relocations for page %lx\n", rel->SizeOfBlock, rel->VirtualAddress);
 424
 425         /* patching in reverse order */
 426         for (i = 0 ; i < count; i++)
 427         {
 428             int offset = TypeOffset[i] & 0xFFF;
 429             int type = TypeOffset[i] >> 12;
 430             switch(type)
 431             {
 432             case IMAGE_REL_BASED_ABSOLUTE:
 433                 break;
 434             case IMAGE_REL_BASED_HIGH:
 435                 *(short*)(page+offset) += HIWORD(delta);
 436                 break;
 437             case IMAGE_REL_BASED_LOW:
 438                 *(short*)(page+offset) += LOWORD(delta);
 439                 break;
 440             case IMAGE_REL_BASED_HIGHLOW:
 441                 *(int*)(page+offset) += delta;
 442                 /* FIXME: if this is an exported address, fire up enhanced logic */
 443                 break;
 444             default:
 445                 FIXME_(module)("Unknown/unsupported fixup type %d.\n", type);
 446                 break;
 447             }
 448         }
 449     }
 450     return 1;
 451 }
 452
 453
 454 /**********************************************************************
 455  *                      PE_LoadImage
 456  * Load one PE format DLL/EXE into memory
 457  *
 458  * Unluckily we can't just mmap the sections where we want them, for
 459  * (at least) Linux does only support offsets which are page-aligned.
 460  *
 461  * BUT we have to map the whole image anyway, for Win32 programs sometimes
 462  * want to access them. (HMODULE points to the start of it)
 463  */
 464 HMODULE PE_LoadImage( HANDLE hFile, LPCSTR filename, DWORD flags )
 465 {
 466     IMAGE_NT_HEADERS *nt;
 467     HMODULE hModule;
 468     HANDLE mapping;
 469     void *base;
 470
 471     TRACE_(module)( "loading %s\n", filename );
 472
 473     mapping = CreateFileMappingA( hFile, NULL, SEC_IMAGE, 0, 0, NULL );
 474     if (!mapping) return 0;
 475     base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
 476     CloseHandle( mapping );
 477     if (!base) return 0;
 478
 479     hModule = (HMODULE)base;
 480     if (flags & LOAD_LIBRARY_AS_DATAFILE) return hModule;  /* nothing else to do */
 481
 482     /* perform base relocation, if necessary */
 483
 484     nt = PE_HEADER( hModule );
 485     if (hModule != nt->OptionalHeader.ImageBase)
 486     {
 487         if (!do_relocations( base, nt, filename ))
 488         {
 489             UnmapViewOfFile( base );
 490             SetLastError( ERROR_BAD_EXE_FORMAT );
 491             return 0;
 492         }
 493     }
 494
 495     /* virus check */
 496
 497     if (nt->OptionalHeader.AddressOfEntryPoint)
 498     {
 499         int i;
 500         IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader +
 501                                                             nt->FileHeader.SizeOfOptionalHeader);
 502         for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
 503         {
 504             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress)
 505                 continue;
 506             if (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress+sec->SizeOfRawData)
 507                 break;
 508         }
 509         if (i == nt->FileHeader.NumberOfSections)
 510             MESSAGE("VIRUS WARNING: PE module has an invalid entrypoint (0x%08lx) "
 511                     "outside all sections (possibly infected by Tchernobyl/SpaceFiller virus)!\n",
 512                     nt->OptionalHeader.AddressOfEntryPoint );
 513     }
 514
 515     return hModule;
 516 }
 517
 518 /**********************************************************************
 519  *                 PE_CreateModule
 520  *
 521  * Create WINE_MODREF structure for loaded HMODULE32, link it into
 522  * process modref_list, and fixup all imports.
 523  *
 524  * Note: hModule must point to a correctly allocated PE image,
 525  *       with base relocations applied; the 16-bit dummy module
 526  *       associated to hModule must already exist.
 527  *
 528  * Note: This routine must always be called in the context of the
 529  *       process that is to own the module to be created.
 530  *
 531  * Note: Assumes that the process critical section is held
 532  */
 533 WINE_MODREF *PE_CreateModule( HMODULE hModule, LPCSTR filename, DWORD flags,
 534                               HANDLE hFile, BOOL builtin )
 535 {
 536     DWORD load_addr = (DWORD)hModule;  /* for RVA */
 537     IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
 538     IMAGE_DATA_DIRECTORY *dir;
 539     IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
 540     WINE_MODREF *wm;
 541     HMODULE16 hModule16;
 542
 543     /* Retrieve DataDirectory entries */
 544
 545     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
 546     if (dir->Size)
 547         pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
 548
 549     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
 550     if (dir->Size) FIXME("Exception directory ignored\n" );
 551
 552     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
 553     if (dir->Size) FIXME("Security directory ignored\n" );
 554
 555     /* IMAGE_DIRECTORY_ENTRY_BASERELOC handled in PE_LoadImage */
 556     /* IMAGE_DIRECTORY_ENTRY_DEBUG handled by debugger */
 557
 558     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
 559     if (dir->Size) FIXME("Global Pointer (MIPS) ignored\n" );
 560
 561     /* IMAGE_DIRECTORY_ENTRY_TLS handled in PE_TlsInit */
 562
 563     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
 564     if (dir->Size) FIXME("Load Configuration directory ignored\n" );
 565
 566     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
 567     if (dir->Size) TRACE("Bound Import directory ignored\n" );
 568
 569     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
 570     if (dir->Size) TRACE("Import Address Table directory ignored\n" );
 571
 572     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
 573     if (dir->Size)
 574     {
 575                 TRACE("Delayed import, stub calls LoadLibrary\n" );
 576                 /*
 577                  * Nothing to do here.
 578                  */
 579
 580 #ifdef ImgDelayDescr
 581                 /*
 582                  * This code is useful to observe what the heck is going on.
 583                  */
 584                 {
 585                 ImgDelayDescr *pe_delay = NULL;
 586         pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
 587         TRACE_(delayhlp)("pe_delay->grAttrs = %08x\n", pe_delay->grAttrs);
 588         TRACE_(delayhlp)("pe_delay->szName = %s\n", pe_delay->szName);
 589         TRACE_(delayhlp)("pe_delay->phmod = %08x\n", pe_delay->phmod);
 590         TRACE_(delayhlp)("pe_delay->pIAT = %08x\n", pe_delay->pIAT);
 591         TRACE_(delayhlp)("pe_delay->pINT = %08x\n", pe_delay->pINT);
 592         TRACE_(delayhlp)("pe_delay->pBoundIAT = %08x\n", pe_delay->pBoundIAT);
 593         TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08x\n", pe_delay->pUnloadIAT);
 594         TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08x\n", pe_delay->dwTimeStamp);
 595         }
 596 #endif /* ImgDelayDescr */
 597         }
 598
 599     dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
 600     if (dir->Size) FIXME("Unknown directory 14 ignored\n" );
 601
 602     dir = nt->OptionalHeader.DataDirectory+15;
 603     if (dir->Size) FIXME("Unknown directory 15 ignored\n" );
 604
 605     /* Create 16-bit dummy module */
 606
 607     if ((hModule16 = MODULE_CreateDummyModule( filename, hModule )) < 32)
 608     {
 609         SetLastError( (DWORD)hModule16 );       /* This should give the correct error */
 610         return NULL;
 611     }
 612
 613     /* Allocate and fill WINE_MODREF */
 614
 615     if (!(wm = MODULE_AllocModRef( hModule, filename )))
 616     {
 617         FreeLibrary16( hModule16 );
 618         return NULL;
 619     }
 620     wm->hDummyMod = hModule16;
 621
 622     if ( builtin )
 623     {
 624         NE_MODULE *pModule = (NE_MODULE *)GlobalLock16( hModule16 );
 625         pModule->flags |= NE_FFLAGS_BUILTIN;
 626         wm->flags |= WINE_MODREF_INTERNAL;
 627     }
 628     else if ( flags & DONT_RESOLVE_DLL_REFERENCES )
 629         wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
 630
 631     wm->find_export = PE_FindExportedFunction;
 632
 633     /* Dump Exports */
 634
 635     if ( pe_export )
 636         dump_exports( hModule );
 637
 638     /* Fixup Imports */
 639
 640     if (!(wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
 641         PE_fixup_imports( wm ))
 642     {
 643         /* remove entry from modref chain */
 644
 645         if ( !wm->prev )
 646             MODULE_modref_list = wm->next;
 647         else
 648             wm->prev->next = wm->next;
 649
 650         if ( wm->next ) wm->next->prev = wm->prev;
 651         wm->next = wm->prev = NULL;
 652
 653         /* FIXME: there are several more dangling references
 654          * left. Including dlls loaded by this dll before the
 655          * failed one. Unrolling is rather difficult with the
 656          * current structure and we can leave it them lying
 657          * around with no problems, so we don't care.
 658          * As these might reference our wm, we don't free it.
 659          */
 660          return NULL;
 661     }
 662
 663     if (!builtin && pe_export)
 664         SNOOP_RegisterDLL( hModule, wm->modname, pe_export->Base, pe_export->NumberOfFunctions );
 665
 666     /* Send DLL load event */
 667     /* we don't need to send a dll event for the main exe */
 668
 669     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
 670     {
 671         if (hFile)
 672         {
 673             UINT drive_type = GetDriveTypeA( wm->short_filename );
 674             /* don't keep the file handle open on removable media */
 675             if (drive_type == DRIVE_REMOVABLE || drive_type == DRIVE_CDROM) hFile = 0;
 676         }
 677         SERVER_START_REQ( load_dll )
 678         {
 679             req->handle     = hFile;
 680             req->base       = (void *)hModule;
 681             req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
 682             req->dbg_size   = nt->FileHeader.NumberOfSymbols;
 683             req->name       = &wm->filename;
 684             wine_server_call( req );
 685         }
 686         SERVER_END_REQ;
 687     }
 688
 689     return wm;
 690 }
 691
 692 /******************************************************************************
 693  * The PE Library Loader frontend.
 694  * FIXME: handle the flags.
 695  */
 696 WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
 697 {
 698         HMODULE         hModule32;
 699         WINE_MODREF     *wm;
 700         HANDLE          hFile;
 701
 702         hFile = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
 703                              NULL, OPEN_EXISTING, 0, 0 );
 704         if ( hFile == INVALID_HANDLE_VALUE ) return NULL;
 705
 706         /* Load PE module */
 707         hModule32 = PE_LoadImage( hFile, name, flags );
 708         if (!hModule32)
 709         {
 710                 CloseHandle( hFile );
 711                 return NULL;
 712         }
 713
 714         /* Create 32-bit MODREF */
 715         if ( !(wm = PE_CreateModule( hModule32, name, flags, hFile, FALSE )) )
 716         {
 717                 ERR( "can't load %s\n", name );
 718                 CloseHandle( hFile );
 719                 SetLastError( ERROR_OUTOFMEMORY );
 720                 return NULL;
 721         }
 722
 723         CloseHandle( hFile );
 724         return wm;
 725 }
 726
 727
 728 /* Called if the library is loaded or freed.
 729  * NOTE: if a thread attaches a DLL, the current thread will only do
 730  * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
 731  * (SDK)
 732  */
 733 typedef DWORD CALLBACK(*DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
 734
 735 BOOL PE_InitDLL( HMODULE module, DWORD type, LPVOID lpReserved )
 736 {
 737     BOOL retv = TRUE;
 738     IMAGE_NT_HEADERS *nt = PE_HEADER(module);
 739
 740     /* Is this a library? And has it got an entrypoint? */
 741     if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
 742         (nt->OptionalHeader.AddressOfEntryPoint))
 743     {
 744         DLLENTRYPROC entry = (void*)((char*)module + nt->OptionalHeader.AddressOfEntryPoint);
 745         if (TRACE_ON(relay))
 746             DPRINTF("%08lx:Call PE DLL (proc=%p,module=%08x,type=%ld,res=%p)\n",
 747                     GetCurrentThreadId(), entry, module, type, lpReserved );
 748         retv = entry( module, type, lpReserved );
 749         if (TRACE_ON(relay))
 750             DPRINTF("%08lx:Ret  PE DLL (proc=%p,module=%08x,type=%ld,res=%p) retval=%x\n",
 751                     GetCurrentThreadId(), entry, module, type, lpReserved, retv );
 752     }
 753
 754     return retv;
 755 }
 756
 757 /************************************************************************
 758  *      PE_InitTls                      (internal)
 759  *
 760  * If included, initialises the thread local storages of modules.
 761  * Pointers in those structs are not RVAs but real pointers which have been
 762  * relocated by do_relocations() already.
 763  */
 764 static LPVOID
 765 _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
 766         if (    ((DWORD)addr>opt->ImageBase) &&
 767                 ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
 768         )
 769                 /* the address has not been relocated! */
 770                 return (LPVOID)(((DWORD)addr)+delta);
 771         else
 772                 /* the address has been relocated already */
 773                 return addr;
 774 }
 775 void PE_InitTls( void )
 776 {
 777         WINE_MODREF             *wm;
 778         IMAGE_NT_HEADERS        *peh;
 779         DWORD                   size,datasize;
 780         LPVOID                  mem;
 781         PIMAGE_TLS_DIRECTORY    pdir;
 782         int delta;
 783
 784         for (wm = MODULE_modref_list;wm;wm=wm->next) {
 785                 peh = PE_HEADER(wm->module);
 786                 delta = wm->module - peh->OptionalHeader.ImageBase;
 787                 if (!peh->OptionalHeader.DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress)
 788                         continue;
 789                 pdir = (LPVOID)(wm->module + peh->OptionalHeader.
 790                         DataDirectory[IMAGE_FILE_THREAD_LOCAL_STORAGE].VirtualAddress);
 791
 792
 793                 if ( wm->tlsindex == -1 ) {
 794                         LPDWORD xaddr;
 795                         wm->tlsindex = TlsAlloc();
 796                         xaddr = _fixup_address(&(peh->OptionalHeader),delta,
 797                                         pdir->AddressOfIndex
 798                         );
 799                         *xaddr=wm->tlsindex;
 800                 }
 801                 datasize= pdir->EndAddressOfRawData-pdir->StartAddressOfRawData;
 802                 size    = datasize + pdir->SizeOfZeroFill;
 803                 mem=VirtualAlloc(0,size,MEM_RESERVE|MEM_COMMIT,PAGE_READWRITE);
 804                 memcpy(mem,_fixup_address(&(peh->OptionalHeader),delta,(LPVOID)pdir->StartAddressOfRawData),datasize);
 805                 if (pdir->AddressOfCallBacks) {
 806                      PIMAGE_TLS_CALLBACK *cbs;
 807
 808                      cbs = _fixup_address(&(peh->OptionalHeader),delta,pdir->AddressOfCallBacks);
 809                      if (*cbs)
 810                        FIXME("TLS Callbacks aren't going to be called\n");
 811                 }
 812
 813                 TlsSetValue( wm->tlsindex, mem );
 814         }
 815 }
 816