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 AVIFIL32_Descriptor;
  33 extern const BUILTIN32_DESCRIPTOR COMCTL32_Descriptor;
  34 extern const BUILTIN32_DESCRIPTOR COMDLG32_Descriptor;
  35 extern const BUILTIN32_DESCRIPTOR CRTDLL_Descriptor;
  36 extern const BUILTIN32_DESCRIPTOR DCIMAN32_Descriptor;
  37 extern const BUILTIN32_DESCRIPTOR DDRAW_Descriptor;
  38 extern const BUILTIN32_DESCRIPTOR DINPUT_Descriptor;
  39 extern const BUILTIN32_DESCRIPTOR DPLAY_Descriptor;
  40 extern const BUILTIN32_DESCRIPTOR DPLAYX_Descriptor;
  41 extern const BUILTIN32_DESCRIPTOR DSOUND_Descriptor;
  42 extern const BUILTIN32_DESCRIPTOR GDI32_Descriptor;
  43 extern const BUILTIN32_DESCRIPTOR IMAGEHLP_Descriptor;
  44 extern const BUILTIN32_DESCRIPTOR IMM32_Descriptor;
  45 extern const BUILTIN32_DESCRIPTOR KERNEL32_Descriptor;
  46 extern const BUILTIN32_DESCRIPTOR LZ32_Descriptor;
  47 extern const BUILTIN32_DESCRIPTOR MPR_Descriptor;
  48 extern const BUILTIN32_DESCRIPTOR MSACM32_Descriptor;
  49 extern const BUILTIN32_DESCRIPTOR MSNET32_Descriptor;
  50 extern const BUILTIN32_DESCRIPTOR MSVFW32_Descriptor;
  51 extern const BUILTIN32_DESCRIPTOR NTDLL_Descriptor;
  52 extern const BUILTIN32_DESCRIPTOR OLE32_Descriptor;
  53 extern const BUILTIN32_DESCRIPTOR OLEAUT32_Descriptor;
  54 extern const BUILTIN32_DESCRIPTOR OLECLI32_Descriptor;
  55 extern const BUILTIN32_DESCRIPTOR OLEDLG_Descriptor;
  56 extern const BUILTIN32_DESCRIPTOR OLESVR32_Descriptor;
  57 extern const BUILTIN32_DESCRIPTOR PSAPI_Descriptor;
  58 extern const BUILTIN32_DESCRIPTOR RASAPI32_Descriptor;
  59 extern const BUILTIN32_DESCRIPTOR SHELL32_Descriptor;
  60 extern const BUILTIN32_DESCRIPTOR TAPI32_Descriptor;
  61 extern const BUILTIN32_DESCRIPTOR USER32_Descriptor;
  62 extern const BUILTIN32_DESCRIPTOR VERSION_Descriptor;
  63 extern const BUILTIN32_DESCRIPTOR W32SKRNL_Descriptor;
  64 extern const BUILTIN32_DESCRIPTOR WINMM_Descriptor;
  65 extern const BUILTIN32_DESCRIPTOR WINSPOOL_Descriptor;
  66 extern const BUILTIN32_DESCRIPTOR WNASPI32_Descriptor;
  67 extern const BUILTIN32_DESCRIPTOR WOW32_Descriptor;
  68 extern const BUILTIN32_DESCRIPTOR WSOCK32_Descriptor;
  69
  70 static BUILTIN32_DLL BuiltinDLLs[] =
  71 {
  72     { &ADVAPI32_Descriptor, TRUE  },
  73     { &AVIFIL32_Descriptor, FALSE },
  74     { &COMCTL32_Descriptor, FALSE },
  75     { &COMDLG32_Descriptor, TRUE  },
  76     { &CRTDLL_Descriptor,   TRUE  },
  77     { &DCIMAN32_Descriptor, FALSE },
  78     { &DDRAW_Descriptor,    TRUE  },
  79     { &DINPUT_Descriptor,   TRUE  },
  80     { &DPLAY_Descriptor,    TRUE  },
  81     { &DPLAYX_Descriptor,   TRUE  },
  82     { &DSOUND_Descriptor,   TRUE  },
  83     { &GDI32_Descriptor,    TRUE  },
  84     { &IMAGEHLP_Descriptor, FALSE },
  85     { &IMM32_Descriptor,    FALSE },
  86     { &KERNEL32_Descriptor, TRUE  },
  87     { &LZ32_Descriptor,     TRUE  },
  88     { &MPR_Descriptor,      TRUE  },
  89     { &MSACM32_Descriptor,  FALSE },
  90     { &MSNET32_Descriptor,  FALSE },
  91     { &MSVFW32_Descriptor,  FALSE },
  92     { &NTDLL_Descriptor,    TRUE  },
  93     { &OLE32_Descriptor,    FALSE },
  94     { &OLEAUT32_Descriptor, FALSE },
  95     { &OLECLI32_Descriptor, FALSE },
  96     { &OLEDLG_Descriptor,   FALSE },
  97     { &OLESVR32_Descriptor, FALSE },
  98     { &PSAPI_Descriptor,    FALSE },
  99     { &RASAPI32_Descriptor, FALSE },
 100     { &SHELL32_Descriptor,  TRUE  },
 101     { &TAPI32_Descriptor,   FALSE },
 102     { &USER32_Descriptor,   TRUE  },
 103     { &VERSION_Descriptor,  TRUE  },
 104     { &W32SKRNL_Descriptor, TRUE  },
 105     { &WINMM_Descriptor,    TRUE  },
 106     { &WINSPOOL_Descriptor, TRUE  },
 107     { &WNASPI32_Descriptor, TRUE  },
 108     { &WOW32_Descriptor,    TRUE  },
 109     { &WSOCK32_Descriptor,  TRUE  },
 110     /* Last entry */
 111     { NULL, FALSE }
 112 };
 113
 114
 115 /***********************************************************************
 116  *           BUILTIN32_DoLoadModule
 117  *
 118  * Load a built-in Win32 module. Helper function for BUILTIN32_LoadModule.
 119  */
 120 static HMODULE32 BUILTIN32_DoLoadModule( BUILTIN32_DLL *dll, PDB32 *pdb )
 121 {
 122     extern void RELAY_CallFrom32();
 123
 124     HMODULE16 hModule;
 125     NE_MODULE *pModule;
 126     OFSTRUCT ofs;
 127     IMAGE_DATA_DIRECTORY *dir;
 128     IMAGE_DOS_HEADER *dos;
 129     IMAGE_NT_HEADERS *nt;
 130     IMAGE_SECTION_HEADER *sec;
 131     IMAGE_EXPORT_DIRECTORY *exp;
 132     LPVOID *funcs;
 133     LPSTR *names;
 134     DEBUG_ENTRY_POINT *debug;
 135     WINE_MODREF *wm;
 136     PE_MODREF *pem;
 137     INT32 i, size;
 138     BYTE *addr;
 139
 140     /* Allocate the module */
 141
 142     size = (sizeof(IMAGE_DOS_HEADER)
 143             + sizeof(IMAGE_NT_HEADERS)
 144             + 2 * sizeof(IMAGE_SECTION_HEADER)
 145             + sizeof(IMAGE_EXPORT_DIRECTORY)
 146             + dll->descr->nb_funcs * sizeof(LPVOID)
 147             + dll->descr->nb_names * sizeof(LPSTR));
 148 #ifdef __i386__
 149     if (TRACE_ON(relay))
 150         size += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 151 #endif
 152     addr  = VirtualAlloc( NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE );
 153     if (!addr) return 0;
 154     dos   = (IMAGE_DOS_HEADER *)addr;
 155     nt    = (IMAGE_NT_HEADERS *)(dos + 1);
 156     sec   = (IMAGE_SECTION_HEADER *)(nt + 1);
 157     exp   = (IMAGE_EXPORT_DIRECTORY *)(sec + 2);
 158     funcs = (LPVOID *)(exp + 1);
 159     names = (LPSTR *)(funcs + dll->descr->nb_funcs);
 160     debug = (DEBUG_ENTRY_POINT *)(names + dll->descr->nb_names);
 161
 162     /* Build the DOS and NT headers */
 163
 164     dos->e_magic  = IMAGE_DOS_SIGNATURE;
 165     dos->e_lfanew = sizeof(*dos);
 166
 167     nt->Signature                       = IMAGE_NT_SIGNATURE;
 168     nt->FileHeader.Machine              = IMAGE_FILE_MACHINE_I386;
 169     nt->FileHeader.NumberOfSections     = 2;  /* exports + code */
 170     nt->FileHeader.SizeOfOptionalHeader = sizeof(nt->OptionalHeader);
 171     nt->FileHeader.Characteristics      = IMAGE_FILE_DLL;
 172
 173     nt->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
 174     nt->OptionalHeader.SizeOfCode                  = 0x1000;
 175     nt->OptionalHeader.SizeOfInitializedData       = 0;
 176     nt->OptionalHeader.SizeOfUninitializedData     = 0;
 177     nt->OptionalHeader.ImageBase                   = (DWORD)addr;
 178     nt->OptionalHeader.SectionAlignment            = 0x1000;
 179     nt->OptionalHeader.FileAlignment               = 0x1000;
 180     nt->OptionalHeader.MajorOperatingSystemVersion = 1;
 181     nt->OptionalHeader.MinorOperatingSystemVersion = 0;
 182     nt->OptionalHeader.MajorSubsystemVersion       = 4;
 183     nt->OptionalHeader.MinorSubsystemVersion       = 0;
 184     nt->OptionalHeader.SizeOfImage                 = size;
 185     nt->OptionalHeader.SizeOfHeaders               = (BYTE *)exp - addr;
 186     nt->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
 187     if (dll->descr->dllentrypoint)
 188         nt->OptionalHeader.AddressOfEntryPoint = (DWORD)dll->descr->dllentrypoint - (DWORD)addr;
 189
 190     /* Build the export directory */
 191
 192     dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 193     dir->VirtualAddress = (BYTE *)exp - addr;
 194     dir->Size = sizeof(*exp)
 195                 + dll->descr->nb_funcs * sizeof(LPVOID)
 196                 + dll->descr->nb_names * sizeof(LPSTR);
 197
 198     /* Build the exports section */
 199
 200     strcpy( sec->Name, ".edata" );
 201     sec->Misc.VirtualSize = dir->Size;
 202     sec->VirtualAddress   = (BYTE *)exp - addr;
 203     sec->SizeOfRawData    = dir->Size;
 204     sec->PointerToRawData = (BYTE *)exp - addr;
 205     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 206                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
 207                              IMAGE_SCN_MEM_WRITE);
 208
 209     /* Build the code section */
 210
 211     sec++;
 212     strcpy( sec->Name, ".code" );
 213     sec->SizeOfRawData = 0;
 214 #ifdef __i386__
 215     if (TRACE_ON(relay))
 216         sec->SizeOfRawData += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 217 #endif
 218     sec->Misc.VirtualSize = sec->SizeOfRawData;
 219     sec->VirtualAddress   = (BYTE *)debug - addr;
 220     sec->PointerToRawData = (BYTE *)debug - addr;
 221     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 222                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
 223
 224     /* Build the exports section data */
 225
 226     exp->Name                  = ((BYTE *)dll->descr->name) - addr;  /*??*/
 227     exp->Base                  = dll->descr->base;
 228     exp->NumberOfFunctions     = dll->descr->nb_funcs;
 229     exp->NumberOfNames         = dll->descr->nb_names;
 230     exp->AddressOfFunctions    = (LPDWORD *)((BYTE *)funcs - addr);
 231     exp->AddressOfNames        = (LPDWORD *)((BYTE *)names - addr);
 232     exp->AddressOfNameOrdinals = (LPWORD *)((BYTE *)dll->descr->ordinals - addr);
 233
 234     /* Build the funcs table */
 235
 236     for (i = 0; i < dll->descr->nb_funcs; i++, funcs++, debug++)
 237     {
 238         BYTE args = dll->descr->args[i];
 239         if (!dll->descr->functions[i]) continue;
 240         *funcs = (LPVOID)((BYTE *)dll->descr->functions[i] - addr);
 241 #ifdef __i386__
 242         if (!TRACE_ON(relay)) continue;
 243         switch(args)
 244         {
 245         case 0xfe:  /* register func */
 246             debug->call       = 0xe8;
 247             debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 248                                 (DWORD)&debug->ret;
 249             debug->ret        = 0x90;  /* nop */
 250             debug->args       = 0;
 251             *funcs = (LPVOID)((BYTE *)debug - addr);
 252             break;
 253         case 0xff:  /* stub or extern */
 254             break;
 255         default:  /* normal function (stdcall or cdecl) */
 256             debug->call       = 0xe8;
 257             debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 258                                 (DWORD)&debug->ret;
 259             debug->ret        = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
 260             debug->args       = (args & 0x7f) * sizeof(int);
 261             *funcs = (LPVOID)((BYTE *)debug - addr);
 262             break;
 263         }
 264 #endif  /* __i386__ */
 265     }
 266
 267     /* Build the names table */
 268
 269     for (i = 0; i < exp->NumberOfNames; i++, names++)
 270         if (dll->descr->names[i])
 271             *names = (LPSTR)((BYTE *)dll->descr->names[i] - addr);
 272
 273     /* Create a modref */
 274     wm = (WINE_MODREF *)HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(*wm) );
 275     wm->type = MODULE32_PE;
 276     pem = &(wm->binfmt.pe);
 277     wm->module          = (HMODULE32)addr;
 278     wm->next            = pdb->modref_list;
 279     pdb->modref_list    = wm;
 280     wm->modname         = HEAP_strdupA(pdb->heap,0,dll->descr->name);
 281     /* FIXME: hmm ... probably add windows directory? don't know ... -MM */
 282     wm->shortname       = HEAP_strdupA(pdb->heap,0,wm->modname);
 283     wm->longname        = HEAP_strdupA(pdb->heap,0,wm->modname);
 284
 285     pem->pe_export      = exp;
 286     pem->flags          = PE_MODREF_INTERNAL;
 287
 288     /* Create a Win16 dummy module */
 289
 290     sprintf( ofs.szPathName, "%s.DLL", dll->descr->name );
 291     hModule = MODULE_CreateDummyModule( &ofs );
 292     pModule = (NE_MODULE *)GlobalLock16( hModule );
 293     pModule->flags = NE_FFLAGS_SINGLEDATA | NE_FFLAGS_BUILTIN |
 294                      NE_FFLAGS_LIBMODULE | NE_FFLAGS_WIN32;
 295     pModule->module32 = (HMODULE32)addr;
 296     return pModule->module32;
 297 }
 298
 299
 300 /***********************************************************************
 301  *           BUILTIN32_LoadModule
 302  *
 303  * Load a built-in module. If the 'force' parameter is FALSE, we only
 304  * load the module if it has not been disabled via the -dll option.
 305  */
 306 HMODULE32 BUILTIN32_LoadModule( LPCSTR name, BOOL32 force, PDB32 *process )
 307 {
 308     BUILTIN32_DLL *table;
 309     char dllname[16], *p;
 310
 311     /* Fix the name in case we have a full path and extension */
 312
 313     if ((p = strrchr( name, '\\' ))) name = p + 1;
 314     lstrcpyn32A( dllname, name, sizeof(dllname) );
 315     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 316
 317     for (table = BuiltinDLLs; table->descr; table++)
 318         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 319     if (!table->descr) return 0;
 320     if (!table->used)
 321     {
 322         if (!force) return 0;
 323         table->used = TRUE;  /* So next time we use it at once */
 324     }
 325     return BUILTIN32_DoLoadModule( table, process );
 326 }
 327
 328
 329 /***********************************************************************
 330  *           BUILTIN32_GetEntryPoint
 331  *
 332  * Return the name of the DLL entry point corresponding
 333  * to a relay entry point address. This is used only by relay debugging.
 334  *
 335  * This function _must_ return the real entry point to call
 336  * after the debug info is printed.
 337  */
 338 ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
 339                                       unsigned int *typemask )
 340 {
 341     BUILTIN32_DLL *dll;
 342     HMODULE32 hModule;
 343     int ordinal = 0, i;
 344
 345     /* First find the module */
 346
 347     for (dll = BuiltinDLLs; dll->descr; dll++)
 348         if (dll->used
 349             && ((hModule = GetModuleHandle32A(dll->descr->name)) != 0))
 350         {
 351             IMAGE_SECTION_HEADER *sec = PE_SECTIONS(hModule);
 352             DEBUG_ENTRY_POINT *debug =
 353                  (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 354             DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
 355
 356             if (debug <= func && func < debug + dll->descr->nb_funcs)
 357             {
 358                 ordinal = func - debug;
 359                 break;
 360             }
 361         }
 362
 363     if (!dll->descr)
 364         return (ENTRYPOINT32)NULL;
 365
 366     /* Now find the function */
 367
 368     for (i = 0; i < dll->descr->nb_names; i++)
 369         if (dll->descr->ordinals[i] == ordinal) break;
 370     assert( i < dll->descr->nb_names );
 371
 372     sprintf( buffer, "%s.%d: %s", dll->descr->name, ordinal + dll->descr->base,
 373              dll->descr->names[i] );
 374     *typemask = dll->descr->argtypes[ordinal];
 375     return dll->descr->functions[ordinal];
 376 }
 377
 378
 379 /***********************************************************************
 380  *           BUILTIN32_Unimplemented
 381  *
 382  * This function is called for unimplemented 32-bit entry points (declared
 383  * as 'stub' in the spec file).
 384  */
 385 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
 386 {
 387     const char *func_name = "???";
 388     int i;
 389
 390     __RESTORE_ES;  /* Just in case */
 391
 392     for (i = 0; i < descr->nb_names; i++)
 393         if (descr->ordinals[i] + descr->base == ordinal) break;
 394     if (i < descr->nb_names) func_name = descr->names[i];
 395
 396     MSG( "No handler for Win32 routine %s.%d: %s",
 397              descr->name, ordinal, func_name );
 398 #ifdef __GNUC__
 399     MSG( " (called from %p)", __builtin_return_address(1) );
 400 #endif
 401     MSG( "\n" );
 402     ExitProcess(1);
 403 }
 404
 405
 406 /***********************************************************************
 407  *           BUILTIN32_EnableDLL
 408  *
 409  * Enable or disable a built-in DLL.
 410  */
 411 int BUILTIN32_EnableDLL( const char *name, int len, int enable )
 412 {
 413     int i;
 414     BUILTIN32_DLL *dll;
 415
 416     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 417     {
 418         if (!lstrncmpi32A( name, dll->descr->name, len ))
 419         {
 420             dll->used = enable;
 421             return TRUE;
 422         }
 423     }
 424     return FALSE;
 425 }
 426
 427
 428 /***********************************************************************
 429  *           BUILTIN32_PrintDLLs
 430  *
 431  * Print the list of built-in DLLs that can be disabled.
 432  */
 433 void BUILTIN32_PrintDLLs(void)
 434 {
 435     int i;
 436     BUILTIN32_DLL *dll;
 437
 438     MSG("Available Win32 DLLs:\n");
 439     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 440         MSG("%-9s%c", dll->descr->name,
 441                  ((++i) % 8) ? ' ' : '\n' );
 442     MSG("\n");
 443 }