relay32/builtin32.c

   1 /*
   2  * Win32 builtin functions
   3  *
   4  * Copyright 1997 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <string.h>
   9 #include "builtin32.h"
  10 #include "module.h"
  11 #include "heap.h"
  12 #include "task.h"
  13 #include "process.h"
  14 #include "debug.h"
  15
  16 typedef struct
  17 {
  18     BYTE  call;                    /* 0xe8 call callfrom32 (relative) */
  19     DWORD callfrom32 WINE_PACKED;  /* RELAY_CallFrom32 relative addr */
  20     BYTE  ret;                     /* 0xc2 ret $n  or  0xc3 ret */
  21     WORD  args;                    /* nb of args to remove from the stack */
  22 } DEBUG_ENTRY_POINT;
  23
  24 typedef struct
  25 {
  26     const BUILTIN32_DESCRIPTOR *descr;     /* DLL descriptor */
  27     BOOL32                      used;      /* Used by default */
  28 } BUILTIN32_DLL;
  29
  30
  31 extern const BUILTIN32_DESCRIPTOR ADVAPI32_Descriptor;
  32 extern const BUILTIN32_DESCRIPTOR COMCTL32_Descriptor;
  33 extern const BUILTIN32_DESCRIPTOR COMDLG32_Descriptor;
  34 extern const BUILTIN32_DESCRIPTOR CRTDLL_Descriptor;
  35 extern const BUILTIN32_DESCRIPTOR DCIMAN32_Descriptor;
  36 extern const BUILTIN32_DESCRIPTOR DDRAW_Descriptor;
  37 extern const BUILTIN32_DESCRIPTOR DINPUT_Descriptor;
  38 extern const BUILTIN32_DESCRIPTOR DPLAY_Descriptor;
  39 extern const BUILTIN32_DESCRIPTOR DPLAYX_Descriptor;
  40 extern const BUILTIN32_DESCRIPTOR DSOUND_Descriptor;
  41 extern const BUILTIN32_DESCRIPTOR GDI32_Descriptor;
  42 extern const BUILTIN32_DESCRIPTOR IMM32_Descriptor;
  43 extern const BUILTIN32_DESCRIPTOR KERNEL32_Descriptor;
  44 extern const BUILTIN32_DESCRIPTOR LZ32_Descriptor;
  45 extern const BUILTIN32_DESCRIPTOR MPR_Descriptor;
  46 extern const BUILTIN32_DESCRIPTOR MSNET32_Descriptor;
  47 extern const BUILTIN32_DESCRIPTOR MSVFW32_Descriptor;
  48 extern const BUILTIN32_DESCRIPTOR NTDLL_Descriptor;
  49 extern const BUILTIN32_DESCRIPTOR OLE32_Descriptor;
  50 extern const BUILTIN32_DESCRIPTOR OLEAUT32_Descriptor;
  51 extern const BUILTIN32_DESCRIPTOR OLECLI32_Descriptor;
  52 extern const BUILTIN32_DESCRIPTOR OLEDLG_Descriptor;
  53 extern const BUILTIN32_DESCRIPTOR OLESVR32_Descriptor;
  54 extern const BUILTIN32_DESCRIPTOR RASAPI32_Descriptor;
  55 extern const BUILTIN32_DESCRIPTOR SHELL32_Descriptor;
  56 extern const BUILTIN32_DESCRIPTOR TAPI32_Descriptor;
  57 extern const BUILTIN32_DESCRIPTOR USER32_Descriptor;
  58 extern const BUILTIN32_DESCRIPTOR VERSION_Descriptor;
  59 extern const BUILTIN32_DESCRIPTOR W32SKRNL_Descriptor;
  60 extern const BUILTIN32_DESCRIPTOR WINMM_Descriptor;
  61 extern const BUILTIN32_DESCRIPTOR WINSPOOL_Descriptor;
  62 extern const BUILTIN32_DESCRIPTOR WNASPI32_Descriptor;
  63 extern const BUILTIN32_DESCRIPTOR WOW32_Descriptor;
  64 extern const BUILTIN32_DESCRIPTOR WSOCK32_Descriptor;
  65
  66 static BUILTIN32_DLL BuiltinDLLs[] =
  67 {
  68     { &ADVAPI32_Descriptor, TRUE  },
  69     { &COMCTL32_Descriptor, FALSE },
  70     { &COMDLG32_Descriptor, TRUE  },
  71     { &CRTDLL_Descriptor,   TRUE  },
  72     { &DCIMAN32_Descriptor, FALSE },
  73     { &DDRAW_Descriptor,    TRUE  },
  74     { &DINPUT_Descriptor,   TRUE  },
  75     { &DPLAY_Descriptor,    TRUE  },
  76     { &DPLAYX_Descriptor,   TRUE  },
  77     { &DSOUND_Descriptor,   TRUE  },
  78     { &GDI32_Descriptor,    TRUE  },
  79     { &IMM32_Descriptor,    FALSE },
  80     { &KERNEL32_Descriptor, TRUE  },
  81     { &LZ32_Descriptor,     TRUE  },
  82     { &MPR_Descriptor,      TRUE  },
  83     { &MSNET32_Descriptor,  FALSE },
  84     { &MSVFW32_Descriptor,  FALSE },
  85     { &NTDLL_Descriptor,    TRUE  },
  86     { &OLE32_Descriptor,    FALSE },
  87     { &OLEAUT32_Descriptor, FALSE },
  88     { &OLECLI32_Descriptor, FALSE },
  89     { &OLEDLG_Descriptor,   FALSE },
  90     { &OLESVR32_Descriptor, FALSE },
  91     { &RASAPI32_Descriptor, FALSE },
  92     { &SHELL32_Descriptor,  TRUE  },
  93     { &TAPI32_Descriptor,   FALSE },
  94     { &USER32_Descriptor,   TRUE  },
  95     { &VERSION_Descriptor,  TRUE  },
  96     { &W32SKRNL_Descriptor, TRUE  },
  97     { &WINMM_Descriptor,    TRUE  },
  98     { &WINSPOOL_Descriptor, TRUE  },
  99     { &WNASPI32_Descriptor, TRUE  },
 100     { &WOW32_Descriptor,    TRUE  },
 101     { &WSOCK32_Descriptor,  TRUE  },
 102     /* Last entry */
 103     { NULL, FALSE }
 104 };
 105
 106
 107 /***********************************************************************
 108  *           BUILTIN32_DoLoadModule
 109  *
 110  * Load a built-in Win32 module. Helper function for BUILTIN32_LoadModule.
 111  */
 112 static HMODULE32 BUILTIN32_DoLoadModule( BUILTIN32_DLL *dll, PDB32 *pdb )
 113 {
 114     extern void RELAY_CallFrom32();
 115
 116     HMODULE16 hModule;
 117     NE_MODULE *pModule;
 118     OFSTRUCT ofs;
 119     IMAGE_DATA_DIRECTORY *dir;
 120     IMAGE_DOS_HEADER *dos;
 121     IMAGE_NT_HEADERS *nt;
 122     IMAGE_SECTION_HEADER *sec;
 123     IMAGE_EXPORT_DIRECTORY *exp;
 124     LPVOID *funcs;
 125     LPSTR *names;
 126     DEBUG_ENTRY_POINT *debug;
 127     WINE_MODREF *wm;
 128     PE_MODREF *pem;
 129     INT32 i, size;
 130     BYTE *addr;
 131
 132     /* Allocate the module */
 133
 134     size = (sizeof(IMAGE_DOS_HEADER)
 135             + sizeof(IMAGE_NT_HEADERS)
 136             + 2 * sizeof(IMAGE_SECTION_HEADER)
 137             + sizeof(IMAGE_EXPORT_DIRECTORY)
 138             + dll->descr->nb_funcs * sizeof(LPVOID)
 139             + dll->descr->nb_names * sizeof(LPSTR));
 140 #ifdef __i386__
 141     if (TRACE_ON(relay))
 142         size += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 143 #endif
 144     addr  = VirtualAlloc( NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE );
 145     if (!addr) return 0;
 146     dos   = (IMAGE_DOS_HEADER *)addr;
 147     nt    = (IMAGE_NT_HEADERS *)(dos + 1);
 148     sec   = (IMAGE_SECTION_HEADER *)(nt + 1);
 149     exp   = (IMAGE_EXPORT_DIRECTORY *)(sec + 2);
 150     funcs = (LPVOID *)(exp + 1);
 151     names = (LPSTR *)(funcs + dll->descr->nb_funcs);
 152     debug = (DEBUG_ENTRY_POINT *)(names + dll->descr->nb_names);
 153
 154     /* Build the DOS and NT headers */
 155
 156     dos->e_magic  = IMAGE_DOS_SIGNATURE;
 157     dos->e_lfanew = sizeof(*dos);
 158
 159     nt->Signature                       = IMAGE_NT_SIGNATURE;
 160     nt->FileHeader.Machine              = IMAGE_FILE_MACHINE_I386;
 161     nt->FileHeader.NumberOfSections     = 2;  /* exports + code */
 162     nt->FileHeader.SizeOfOptionalHeader = sizeof(nt->OptionalHeader);
 163     nt->FileHeader.Characteristics      = IMAGE_FILE_DLL;
 164
 165     nt->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
 166     nt->OptionalHeader.SizeOfCode                  = 0x1000;
 167     nt->OptionalHeader.SizeOfInitializedData       = 0;
 168     nt->OptionalHeader.SizeOfUninitializedData     = 0;
 169     nt->OptionalHeader.ImageBase                   = (DWORD)addr;
 170     nt->OptionalHeader.SectionAlignment            = 0x1000;
 171     nt->OptionalHeader.FileAlignment               = 0x1000;
 172     nt->OptionalHeader.MajorOperatingSystemVersion = 1;
 173     nt->OptionalHeader.MinorOperatingSystemVersion = 0;
 174     nt->OptionalHeader.MajorSubsystemVersion       = 4;
 175     nt->OptionalHeader.MinorSubsystemVersion       = 0;
 176     nt->OptionalHeader.SizeOfImage                 = size;
 177     nt->OptionalHeader.SizeOfHeaders               = (BYTE *)exp - addr;
 178     nt->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
 179     if (dll->descr->dllentrypoint)
 180         nt->OptionalHeader.AddressOfEntryPoint = (DWORD)dll->descr->dllentrypoint - (DWORD)addr;
 181
 182     /* Build the export directory */
 183
 184     dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 185     dir->VirtualAddress = (BYTE *)exp - addr;
 186     dir->Size = sizeof(*exp)
 187                 + dll->descr->nb_funcs * sizeof(LPVOID)
 188                 + dll->descr->nb_names * sizeof(LPSTR);
 189
 190     /* Build the exports section */
 191
 192     strcpy( sec->Name, ".edata" );
 193     sec->Misc.VirtualSize = dir->Size;
 194     sec->VirtualAddress   = (BYTE *)exp - addr;
 195     sec->SizeOfRawData    = dir->Size;
 196     sec->PointerToRawData = (BYTE *)exp - addr;
 197     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 198                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
 199                              IMAGE_SCN_MEM_WRITE);
 200
 201     /* Build the code section */
 202
 203     sec++;
 204     strcpy( sec->Name, ".code" );
 205     sec->SizeOfRawData = 0;
 206 #ifdef __i386__
 207     if (TRACE_ON(relay))
 208         sec->SizeOfRawData += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 209 #endif
 210     sec->Misc.VirtualSize = sec->SizeOfRawData;
 211     sec->VirtualAddress   = (BYTE *)debug - addr;
 212     sec->PointerToRawData = (BYTE *)debug - addr;
 213     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 214                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
 215
 216     /* Build the exports section data */
 217
 218     exp->Name                  = ((BYTE *)dll->descr->name) - addr;  /*??*/
 219     exp->Base                  = dll->descr->base;
 220     exp->NumberOfFunctions     = dll->descr->nb_funcs;
 221     exp->NumberOfNames         = dll->descr->nb_names;
 222     exp->AddressOfFunctions    = (LPDWORD *)((BYTE *)funcs - addr);
 223     exp->AddressOfNames        = (LPDWORD *)((BYTE *)names - addr);
 224     exp->AddressOfNameOrdinals = (LPWORD *)((BYTE *)dll->descr->ordinals - addr);
 225
 226     /* Build the funcs table */
 227
 228     for (i = 0; i < dll->descr->nb_funcs; i++, funcs++, debug++)
 229     {
 230         BYTE args = dll->descr->args[i];
 231         if (!dll->descr->functions[i]) continue;
 232         *funcs = (LPVOID)((BYTE *)dll->descr->functions[i] - addr);
 233 #ifdef __i386__
 234         if (!TRACE_ON(relay)) continue;
 235         switch(args)
 236         {
 237         case 0xfe:  /* register func */
 238             debug->call       = 0xe8;
 239             debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 240                                 (DWORD)&debug->ret;
 241             debug->ret        = 0x90;  /* nop */
 242             debug->args       = 0;
 243             *funcs = (LPVOID)((BYTE *)debug - addr);
 244             break;
 245         case 0xff:  /* stub or extern */
 246             break;
 247         default:  /* normal function (stdcall or cdecl) */
 248             debug->call       = 0xe8;
 249             debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 250                                 (DWORD)&debug->ret;
 251             debug->ret        = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
 252             debug->args       = (args & 0x7f) * sizeof(int);
 253             *funcs = (LPVOID)((BYTE *)debug - addr);
 254             break;
 255         }
 256 #endif  /* __i386__ */
 257     }
 258
 259     /* Build the names table */
 260
 261     for (i = 0; i < exp->NumberOfNames; i++, names++)
 262         if (dll->descr->names[i])
 263             *names = (LPSTR)((BYTE *)dll->descr->names[i] - addr);
 264
 265     /* Create a modref */
 266     wm = (WINE_MODREF *)HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(*wm) );
 267     wm->type = MODULE32_PE;
 268     pem = &(wm->binfmt.pe);
 269     wm->module          = (HMODULE32)addr;
 270     wm->next            = pdb->modref_list;
 271     pdb->modref_list    = wm;
 272     wm->modname         = HEAP_strdupA(pdb->heap,0,dll->descr->name);
 273     /* FIXME: hmm ... probably add windows directory? don't know ... -MM */
 274     wm->shortname       = HEAP_strdupA(pdb->heap,0,wm->modname);
 275     wm->longname        = HEAP_strdupA(pdb->heap,0,wm->modname);
 276
 277     pem->pe_export      = exp;
 278     pem->flags          = PE_MODREF_INTERNAL;
 279
 280     /* Create a Win16 dummy module */
 281
 282     sprintf( ofs.szPathName, "%s.DLL", dll->descr->name );
 283     hModule = MODULE_CreateDummyModule( &ofs );
 284     pModule = (NE_MODULE *)GlobalLock16( hModule );
 285     pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN |
 286                      NE_FFLAGS_LIBMODULE | NE_FFLAGS_WIN32;
 287     pModule->module32 = (HMODULE32)addr;
 288     return pModule->module32;
 289 }
 290
 291
 292 /***********************************************************************
 293  *           BUILTIN32_LoadModule
 294  *
 295  * Load a built-in module. If the 'force' parameter is FALSE, we only
 296  * load the module if it has not been disabled via the -dll option.
 297  */
 298 HMODULE32 BUILTIN32_LoadModule( LPCSTR name, BOOL32 force, PDB32 *process )
 299 {
 300     BUILTIN32_DLL *table;
 301     char dllname[16], *p;
 302
 303     /* Fix the name in case we have a full path and extension */
 304
 305     if ((p = strrchr( name, '\\' ))) name = p + 1;
 306     lstrcpyn32A( dllname, name, sizeof(dllname) );
 307     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 308
 309     for (table = BuiltinDLLs; table->descr; table++)
 310         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 311     if (!table->descr) return 0;
 312     if (!table->used)
 313     {
 314         if (!force) return 0;
 315         table->used = TRUE;  /* So next time we use it at once */
 316     }
 317     return BUILTIN32_DoLoadModule( table, process );
 318 }
 319
 320
 321 /***********************************************************************
 322  *           BUILTIN32_GetEntryPoint
 323  *
 324  * Return the name of the DLL entry point corresponding
 325  * to a relay entry point address. This is used only by relay debugging.
 326  *
 327  * This function _must_ return the real entry point to call
 328  * after the debug info is printed.
 329  */
 330 ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
 331                                       unsigned int *typemask )
 332 {
 333     BUILTIN32_DLL *dll;
 334     HMODULE32 hModule;
 335     int ordinal = 0, i;
 336
 337     /* First find the module */
 338
 339     for (dll = BuiltinDLLs; dll->descr; dll++)
 340         if (dll->used
 341             && ((hModule = GetModuleHandle32A(dll->descr->name)) != 0))
 342         {
 343             IMAGE_SECTION_HEADER *sec = PE_SECTIONS(hModule);
 344             DEBUG_ENTRY_POINT *debug =
 345                  (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 346             DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
 347
 348             if (debug <= func && func < debug + dll->descr->nb_funcs)
 349             {
 350                 ordinal = func - debug;
 351                 break;
 352             }
 353         }
 354
 355     if (!dll->descr)
 356         return (ENTRYPOINT32)NULL;
 357
 358     /* Now find the function */
 359
 360     for (i = 0; i < dll->descr->nb_names; i++)
 361         if (dll->descr->ordinals[i] == ordinal) break;
 362     assert( i < dll->descr->nb_names );
 363
 364     sprintf( buffer, "%s.%d: %s", dll->descr->name, ordinal + dll->descr->base,
 365              dll->descr->names[i] );
 366     *typemask = dll->descr->argtypes[ordinal];
 367     return dll->descr->functions[ordinal];
 368 }
 369
 370
 371 /***********************************************************************
 372  *           BUILTIN32_Unimplemented
 373  *
 374  * This function is called for unimplemented 32-bit entry points (declared
 375  * as 'stub' in the spec file).
 376  */
 377 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
 378 {
 379     const char *func_name = "???";
 380     int i;
 381
 382     __RESTORE_ES;  /* Just in case */
 383
 384     for (i = 0; i < descr->nb_names; i++)
 385         if (descr->ordinals[i] + descr->base == ordinal) break;
 386     if (i < descr->nb_names) func_name = descr->names[i];
 387
 388     MSG( "No handler for Win32 routine %s.%d: %s",
 389              descr->name, ordinal, func_name );
 390 #ifdef __GNUC__
 391     MSG( " (called from %p)", __builtin_return_address(1) );
 392 #endif
 393     MSG( "\n" );
 394     ExitProcess(1);
 395 }
 396
 397
 398 /***********************************************************************
 399  *           BUILTIN32_EnableDLL
 400  *
 401  * Enable or disable a built-in DLL.
 402  */
 403 int BUILTIN32_EnableDLL( const char *name, int len, int enable )
 404 {
 405     int i;
 406     BUILTIN32_DLL *dll;
 407
 408     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 409     {
 410         if (!lstrncmpi32A( name, dll->descr->name, len ))
 411         {
 412             dll->used = enable;
 413             return TRUE;
 414         }
 415     }
 416     return FALSE;
 417 }
 418
 419
 420 /***********************************************************************
 421  *           BUILTIN32_PrintDLLs
 422  *
 423  * Print the list of built-in DLLs that can be disabled.
 424  */
 425 void BUILTIN32_PrintDLLs(void)
 426 {
 427     int i;
 428     BUILTIN32_DLL *dll;
 429
 430     MSG("Available Win32 DLLs:\n");
 431     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 432         MSG("%-9s%c", dll->descr->name,
 433                  ((++i) % 8) ? ' ' : '\n' );
 434     MSG("\n");
 435 }