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 PSAPI_Descriptor;
  55 extern const BUILTIN32_DESCRIPTOR RASAPI32_Descriptor;
  56 extern const BUILTIN32_DESCRIPTOR SHELL32_Descriptor;
  57 extern const BUILTIN32_DESCRIPTOR TAPI32_Descriptor;
  58 extern const BUILTIN32_DESCRIPTOR USER32_Descriptor;
  59 extern const BUILTIN32_DESCRIPTOR VERSION_Descriptor;
  60 extern const BUILTIN32_DESCRIPTOR W32SKRNL_Descriptor;
  61 extern const BUILTIN32_DESCRIPTOR WINMM_Descriptor;
  62 extern const BUILTIN32_DESCRIPTOR WINSPOOL_Descriptor;
  63 extern const BUILTIN32_DESCRIPTOR WNASPI32_Descriptor;
  64 extern const BUILTIN32_DESCRIPTOR WOW32_Descriptor;
  65 extern const BUILTIN32_DESCRIPTOR WSOCK32_Descriptor;
  66
  67 static BUILTIN32_DLL BuiltinDLLs[] =
  68 {
  69     { &ADVAPI32_Descriptor, TRUE  },
  70     { &COMCTL32_Descriptor, FALSE },
  71     { &COMDLG32_Descriptor, TRUE  },
  72     { &CRTDLL_Descriptor,   TRUE  },
  73     { &DCIMAN32_Descriptor, FALSE },
  74     { &DDRAW_Descriptor,    TRUE  },
  75     { &DINPUT_Descriptor,   TRUE  },
  76     { &DPLAY_Descriptor,    TRUE  },
  77     { &DPLAYX_Descriptor,   TRUE  },
  78     { &DSOUND_Descriptor,   TRUE  },
  79     { &GDI32_Descriptor,    TRUE  },
  80     { &IMM32_Descriptor,    FALSE },
  81     { &KERNEL32_Descriptor, TRUE  },
  82     { &LZ32_Descriptor,     TRUE  },
  83     { &MPR_Descriptor,      TRUE  },
  84     { &MSNET32_Descriptor,  FALSE },
  85     { &MSVFW32_Descriptor,  FALSE },
  86     { &NTDLL_Descriptor,    TRUE  },
  87     { &OLE32_Descriptor,    FALSE },
  88     { &OLEAUT32_Descriptor, FALSE },
  89     { &OLECLI32_Descriptor, FALSE },
  90     { &OLEDLG_Descriptor,   FALSE },
  91     { &OLESVR32_Descriptor, FALSE },
  92     { &PSAPI_Descriptor,    FALSE },
  93     { &RASAPI32_Descriptor, FALSE },
  94     { &SHELL32_Descriptor,  TRUE  },
  95     { &TAPI32_Descriptor,   FALSE },
  96     { &USER32_Descriptor,   TRUE  },
  97     { &VERSION_Descriptor,  TRUE  },
  98     { &W32SKRNL_Descriptor, TRUE  },
  99     { &WINMM_Descriptor,    TRUE  },
 100     { &WINSPOOL_Descriptor, TRUE  },
 101     { &WNASPI32_Descriptor, TRUE  },
 102     { &WOW32_Descriptor,    TRUE  },
 103     { &WSOCK32_Descriptor,  TRUE  },
 104     /* Last entry */
 105     { NULL, FALSE }
 106 };
 107
 108
 109 /***********************************************************************
 110  *           BUILTIN32_DoLoadModule
 111  *
 112  * Load a built-in Win32 module. Helper function for BUILTIN32_LoadModule.
 113  */
 114 static HMODULE32 BUILTIN32_DoLoadModule( BUILTIN32_DLL *dll, PDB32 *pdb )
 115 {
 116     extern void RELAY_CallFrom32();
 117
 118     HMODULE16 hModule;
 119     NE_MODULE *pModule;
 120     OFSTRUCT ofs;
 121     IMAGE_DATA_DIRECTORY *dir;
 122     IMAGE_DOS_HEADER *dos;
 123     IMAGE_NT_HEADERS *nt;
 124     IMAGE_SECTION_HEADER *sec;
 125     IMAGE_EXPORT_DIRECTORY *exp;
 126     LPVOID *funcs;
 127     LPSTR *names;
 128     DEBUG_ENTRY_POINT *debug;
 129     WINE_MODREF *wm;
 130     PE_MODREF *pem;
 131     INT32 i, size;
 132     BYTE *addr;
 133
 134     /* Allocate the module */
 135
 136     size = (sizeof(IMAGE_DOS_HEADER)
 137             + sizeof(IMAGE_NT_HEADERS)
 138             + 2 * sizeof(IMAGE_SECTION_HEADER)
 139             + sizeof(IMAGE_EXPORT_DIRECTORY)
 140             + dll->descr->nb_funcs * sizeof(LPVOID)
 141             + dll->descr->nb_names * sizeof(LPSTR));
 142 #ifdef __i386__
 143     if (TRACE_ON(relay))
 144         size += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 145 #endif
 146     addr  = VirtualAlloc( NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE );
 147     if (!addr) return 0;
 148     dos   = (IMAGE_DOS_HEADER *)addr;
 149     nt    = (IMAGE_NT_HEADERS *)(dos + 1);
 150     sec   = (IMAGE_SECTION_HEADER *)(nt + 1);
 151     exp   = (IMAGE_EXPORT_DIRECTORY *)(sec + 2);
 152     funcs = (LPVOID *)(exp + 1);
 153     names = (LPSTR *)(funcs + dll->descr->nb_funcs);
 154     debug = (DEBUG_ENTRY_POINT *)(names + dll->descr->nb_names);
 155
 156     /* Build the DOS and NT headers */
 157
 158     dos->e_magic  = IMAGE_DOS_SIGNATURE;
 159     dos->e_lfanew = sizeof(*dos);
 160
 161     nt->Signature                       = IMAGE_NT_SIGNATURE;
 162     nt->FileHeader.Machine              = IMAGE_FILE_MACHINE_I386;
 163     nt->FileHeader.NumberOfSections     = 2;  /* exports + code */
 164     nt->FileHeader.SizeOfOptionalHeader = sizeof(nt->OptionalHeader);
 165     nt->FileHeader.Characteristics      = IMAGE_FILE_DLL;
 166
 167     nt->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
 168     nt->OptionalHeader.SizeOfCode                  = 0x1000;
 169     nt->OptionalHeader.SizeOfInitializedData       = 0;
 170     nt->OptionalHeader.SizeOfUninitializedData     = 0;
 171     nt->OptionalHeader.ImageBase                   = (DWORD)addr;
 172     nt->OptionalHeader.SectionAlignment            = 0x1000;
 173     nt->OptionalHeader.FileAlignment               = 0x1000;
 174     nt->OptionalHeader.MajorOperatingSystemVersion = 1;
 175     nt->OptionalHeader.MinorOperatingSystemVersion = 0;
 176     nt->OptionalHeader.MajorSubsystemVersion       = 4;
 177     nt->OptionalHeader.MinorSubsystemVersion       = 0;
 178     nt->OptionalHeader.SizeOfImage                 = size;
 179     nt->OptionalHeader.SizeOfHeaders               = (BYTE *)exp - addr;
 180     nt->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
 181     if (dll->descr->dllentrypoint)
 182         nt->OptionalHeader.AddressOfEntryPoint = (DWORD)dll->descr->dllentrypoint - (DWORD)addr;
 183
 184     /* Build the export directory */
 185
 186     dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 187     dir->VirtualAddress = (BYTE *)exp - addr;
 188     dir->Size = sizeof(*exp)
 189                 + dll->descr->nb_funcs * sizeof(LPVOID)
 190                 + dll->descr->nb_names * sizeof(LPSTR);
 191
 192     /* Build the exports section */
 193
 194     strcpy( sec->Name, ".edata" );
 195     sec->Misc.VirtualSize = dir->Size;
 196     sec->VirtualAddress   = (BYTE *)exp - addr;
 197     sec->SizeOfRawData    = dir->Size;
 198     sec->PointerToRawData = (BYTE *)exp - addr;
 199     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 200                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
 201                              IMAGE_SCN_MEM_WRITE);
 202
 203     /* Build the code section */
 204
 205     sec++;
 206     strcpy( sec->Name, ".code" );
 207     sec->SizeOfRawData = 0;
 208 #ifdef __i386__
 209     if (TRACE_ON(relay))
 210         sec->SizeOfRawData += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 211 #endif
 212     sec->Misc.VirtualSize = sec->SizeOfRawData;
 213     sec->VirtualAddress   = (BYTE *)debug - addr;
 214     sec->PointerToRawData = (BYTE *)debug - addr;
 215     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 216                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
 217
 218     /* Build the exports section data */
 219
 220     exp->Name                  = ((BYTE *)dll->descr->name) - addr;  /*??*/
 221     exp->Base                  = dll->descr->base;
 222     exp->NumberOfFunctions     = dll->descr->nb_funcs;
 223     exp->NumberOfNames         = dll->descr->nb_names;
 224     exp->AddressOfFunctions    = (LPDWORD *)((BYTE *)funcs - addr);
 225     exp->AddressOfNames        = (LPDWORD *)((BYTE *)names - addr);
 226     exp->AddressOfNameOrdinals = (LPWORD *)((BYTE *)dll->descr->ordinals - addr);
 227
 228     /* Build the funcs table */
 229
 230     for (i = 0; i < dll->descr->nb_funcs; i++, funcs++, debug++)
 231     {
 232         BYTE args = dll->descr->args[i];
 233         if (!dll->descr->functions[i]) continue;
 234         *funcs = (LPVOID)((BYTE *)dll->descr->functions[i] - addr);
 235 #ifdef __i386__
 236         if (!TRACE_ON(relay)) continue;
 237         switch(args)
 238         {
 239         case 0xfe:  /* register func */
 240             debug->call       = 0xe8;
 241             debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 242                                 (DWORD)&debug->ret;
 243             debug->ret        = 0x90;  /* nop */
 244             debug->args       = 0;
 245             *funcs = (LPVOID)((BYTE *)debug - addr);
 246             break;
 247         case 0xff:  /* stub or extern */
 248             break;
 249         default:  /* normal function (stdcall or cdecl) */
 250             debug->call       = 0xe8;
 251             debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 252                                 (DWORD)&debug->ret;
 253             debug->ret        = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
 254             debug->args       = (args & 0x7f) * sizeof(int);
 255             *funcs = (LPVOID)((BYTE *)debug - addr);
 256             break;
 257         }
 258 #endif  /* __i386__ */
 259     }
 260
 261     /* Build the names table */
 262
 263     for (i = 0; i < exp->NumberOfNames; i++, names++)
 264         if (dll->descr->names[i])
 265             *names = (LPSTR)((BYTE *)dll->descr->names[i] - addr);
 266
 267     /* Create a modref */
 268     wm = (WINE_MODREF *)HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(*wm) );
 269     wm->type = MODULE32_PE;
 270     pem = &(wm->binfmt.pe);
 271     wm->module          = (HMODULE32)addr;
 272     wm->next            = pdb->modref_list;
 273     pdb->modref_list    = wm;
 274     wm->modname         = HEAP_strdupA(pdb->heap,0,dll->descr->name);
 275     /* FIXME: hmm ... probably add windows directory? don't know ... -MM */
 276     wm->shortname       = HEAP_strdupA(pdb->heap,0,wm->modname);
 277     wm->longname        = HEAP_strdupA(pdb->heap,0,wm->modname);
 278
 279     pem->pe_export      = exp;
 280     pem->flags          = PE_MODREF_INTERNAL;
 281
 282     /* Create a Win16 dummy module */
 283
 284     sprintf( ofs.szPathName, "%s.DLL", dll->descr->name );
 285     hModule = MODULE_CreateDummyModule( &ofs );
 286     pModule = (NE_MODULE *)GlobalLock16( hModule );
 287     pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN |
 288                      NE_FFLAGS_LIBMODULE | NE_FFLAGS_WIN32;
 289     pModule->module32 = (HMODULE32)addr;
 290     return pModule->module32;
 291 }
 292
 293
 294 /***********************************************************************
 295  *           BUILTIN32_LoadModule
 296  *
 297  * Load a built-in module. If the 'force' parameter is FALSE, we only
 298  * load the module if it has not been disabled via the -dll option.
 299  */
 300 HMODULE32 BUILTIN32_LoadModule( LPCSTR name, BOOL32 force, PDB32 *process )
 301 {
 302     BUILTIN32_DLL *table;
 303     char dllname[16], *p;
 304
 305     /* Fix the name in case we have a full path and extension */
 306
 307     if ((p = strrchr( name, '\\' ))) name = p + 1;
 308     lstrcpyn32A( dllname, name, sizeof(dllname) );
 309     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 310
 311     for (table = BuiltinDLLs; table->descr; table++)
 312         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 313     if (!table->descr) return 0;
 314     if (!table->used)
 315     {
 316         if (!force) return 0;
 317         table->used = TRUE;  /* So next time we use it at once */
 318     }
 319     return BUILTIN32_DoLoadModule( table, process );
 320 }
 321
 322
 323 /***********************************************************************
 324  *           BUILTIN32_GetEntryPoint
 325  *
 326  * Return the name of the DLL entry point corresponding
 327  * to a relay entry point address. This is used only by relay debugging.
 328  *
 329  * This function _must_ return the real entry point to call
 330  * after the debug info is printed.
 331  */
 332 ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
 333                                       unsigned int *typemask )
 334 {
 335     BUILTIN32_DLL *dll;
 336     HMODULE32 hModule;
 337     int ordinal = 0, i;
 338
 339     /* First find the module */
 340
 341     for (dll = BuiltinDLLs; dll->descr; dll++)
 342         if (dll->used
 343             && ((hModule = GetModuleHandle32A(dll->descr->name)) != 0))
 344         {
 345             IMAGE_SECTION_HEADER *sec = PE_SECTIONS(hModule);
 346             DEBUG_ENTRY_POINT *debug =
 347                  (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 348             DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
 349
 350             if (debug <= func && func < debug + dll->descr->nb_funcs)
 351             {
 352                 ordinal = func - debug;
 353                 break;
 354             }
 355         }
 356
 357     if (!dll->descr)
 358         return (ENTRYPOINT32)NULL;
 359
 360     /* Now find the function */
 361
 362     for (i = 0; i < dll->descr->nb_names; i++)
 363         if (dll->descr->ordinals[i] == ordinal) break;
 364     assert( i < dll->descr->nb_names );
 365
 366     sprintf( buffer, "%s.%d: %s", dll->descr->name, ordinal + dll->descr->base,
 367              dll->descr->names[i] );
 368     *typemask = dll->descr->argtypes[ordinal];
 369     return dll->descr->functions[ordinal];
 370 }
 371
 372
 373 /***********************************************************************
 374  *           BUILTIN32_Unimplemented
 375  *
 376  * This function is called for unimplemented 32-bit entry points (declared
 377  * as 'stub' in the spec file).
 378  */
 379 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
 380 {
 381     const char *func_name = "???";
 382     int i;
 383
 384     __RESTORE_ES;  /* Just in case */
 385
 386     for (i = 0; i < descr->nb_names; i++)
 387         if (descr->ordinals[i] + descr->base == ordinal) break;
 388     if (i < descr->nb_names) func_name = descr->names[i];
 389
 390     MSG( "No handler for Win32 routine %s.%d: %s",
 391              descr->name, ordinal, func_name );
 392 #ifdef __GNUC__
 393     MSG( " (called from %p)", __builtin_return_address(1) );
 394 #endif
 395     MSG( "\n" );
 396     ExitProcess(1);
 397 }
 398
 399
 400 /***********************************************************************
 401  *           BUILTIN32_EnableDLL
 402  *
 403  * Enable or disable a built-in DLL.
 404  */
 405 int BUILTIN32_EnableDLL( const char *name, int len, int enable )
 406 {
 407     int i;
 408     BUILTIN32_DLL *dll;
 409
 410     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 411     {
 412         if (!lstrncmpi32A( name, dll->descr->name, len ))
 413         {
 414             dll->used = enable;
 415             return TRUE;
 416         }
 417     }
 418     return FALSE;
 419 }
 420
 421
 422 /***********************************************************************
 423  *           BUILTIN32_PrintDLLs
 424  *
 425  * Print the list of built-in DLLs that can be disabled.
 426  */
 427 void BUILTIN32_PrintDLLs(void)
 428 {
 429     int i;
 430     BUILTIN32_DLL *dll;
 431
 432     MSG("Available Win32 DLLs:\n");
 433     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 434         MSG("%-9s%c", dll->descr->name,
 435                  ((++i) % 8) ? ' ' : '\n' );
 436     MSG("\n");
 437 }