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 "peexe.h"
  11 #include "heap.h"
  12 #include "debug.h"
  13
  14 typedef struct
  15 {
  16     BYTE  call;                    /* 0xe8 call callfrom32 (relative) */
  17     DWORD callfrom32 WINE_PACKED;  /* RELAY_CallFrom32 relative addr */
  18     BYTE  ret;                     /* 0xc2 ret $n  or  0xc3 ret */
  19     WORD  args;                    /* nb of args to remove from the stack */
  20 } DEBUG_ENTRY_POINT;
  21
  22 typedef struct
  23 {
  24     const BUILTIN32_DESCRIPTOR *descr;     /* DLL descriptor */
  25     BOOL32                      used;      /* Used by default */
  26 } BUILTIN32_DLL;
  27
  28
  29 extern const BUILTIN32_DESCRIPTOR ADVAPI32_Descriptor;
  30 extern const BUILTIN32_DESCRIPTOR AVIFIL32_Descriptor;
  31 extern const BUILTIN32_DESCRIPTOR COMCTL32_Descriptor;
  32 extern const BUILTIN32_DESCRIPTOR COMDLG32_Descriptor;
  33 extern const BUILTIN32_DESCRIPTOR CRTDLL_Descriptor;
  34 extern const BUILTIN32_DESCRIPTOR DCIMAN32_Descriptor;
  35 extern const BUILTIN32_DESCRIPTOR DDRAW_Descriptor;
  36 extern const BUILTIN32_DESCRIPTOR DINPUT_Descriptor;
  37 extern const BUILTIN32_DESCRIPTOR DPLAY_Descriptor;
  38 extern const BUILTIN32_DESCRIPTOR DPLAYX_Descriptor;
  39 extern const BUILTIN32_DESCRIPTOR DSOUND_Descriptor;
  40 extern const BUILTIN32_DESCRIPTOR GDI32_Descriptor;
  41 extern const BUILTIN32_DESCRIPTOR IMAGEHLP_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 MSACM32_Descriptor;
  47 extern const BUILTIN32_DESCRIPTOR MSNET32_Descriptor;
  48 extern const BUILTIN32_DESCRIPTOR MSVFW32_Descriptor;
  49 extern const BUILTIN32_DESCRIPTOR NTDLL_Descriptor;
  50 extern const BUILTIN32_DESCRIPTOR OLE32_Descriptor;
  51 extern const BUILTIN32_DESCRIPTOR OLEAUT32_Descriptor;
  52 extern const BUILTIN32_DESCRIPTOR OLECLI32_Descriptor;
  53 extern const BUILTIN32_DESCRIPTOR OLEDLG_Descriptor;
  54 extern const BUILTIN32_DESCRIPTOR OLESVR32_Descriptor;
  55 extern const BUILTIN32_DESCRIPTOR PSAPI_Descriptor;
  56 extern const BUILTIN32_DESCRIPTOR RASAPI32_Descriptor;
  57 extern const BUILTIN32_DESCRIPTOR SHELL32_Descriptor;
  58 extern const BUILTIN32_DESCRIPTOR TAPI32_Descriptor;
  59 extern const BUILTIN32_DESCRIPTOR USER32_Descriptor;
  60 extern const BUILTIN32_DESCRIPTOR VERSION_Descriptor;
  61 extern const BUILTIN32_DESCRIPTOR W32SKRNL_Descriptor;
  62 extern const BUILTIN32_DESCRIPTOR WINMM_Descriptor;
  63 extern const BUILTIN32_DESCRIPTOR WINSPOOL_Descriptor;
  64 extern const BUILTIN32_DESCRIPTOR WNASPI32_Descriptor;
  65 extern const BUILTIN32_DESCRIPTOR WOW32_Descriptor;
  66 extern const BUILTIN32_DESCRIPTOR WSOCK32_Descriptor;
  67
  68 static BUILTIN32_DLL BuiltinDLLs[] =
  69 {
  70     { &ADVAPI32_Descriptor, TRUE  },
  71     { &AVIFIL32_Descriptor, FALSE },
  72     { &COMCTL32_Descriptor, FALSE },
  73     { &COMDLG32_Descriptor, TRUE  },
  74     { &CRTDLL_Descriptor,   TRUE  },
  75     { &DCIMAN32_Descriptor, FALSE },
  76     { &DDRAW_Descriptor,    TRUE  },
  77     { &DINPUT_Descriptor,   TRUE  },
  78     { &DPLAY_Descriptor,    TRUE  },
  79     { &DPLAYX_Descriptor,   TRUE  },
  80     { &DSOUND_Descriptor,   TRUE  },
  81     { &GDI32_Descriptor,    TRUE  },
  82     { &IMAGEHLP_Descriptor, FALSE },
  83     { &IMM32_Descriptor,    FALSE },
  84     { &KERNEL32_Descriptor, TRUE  },
  85     { &LZ32_Descriptor,     TRUE  },
  86     { &MPR_Descriptor,      TRUE  },
  87     { &MSACM32_Descriptor,  FALSE },
  88     { &MSNET32_Descriptor,  FALSE },
  89     { &MSVFW32_Descriptor,  FALSE },
  90     { &NTDLL_Descriptor,    TRUE  },
  91     { &OLE32_Descriptor,    FALSE },
  92     { &OLEAUT32_Descriptor, FALSE },
  93     { &OLECLI32_Descriptor, FALSE },
  94     { &OLEDLG_Descriptor,   FALSE },
  95     { &OLESVR32_Descriptor, FALSE },
  96     { &PSAPI_Descriptor,    FALSE },
  97     { &RASAPI32_Descriptor, FALSE },
  98     { &SHELL32_Descriptor,  TRUE  },
  99     { &TAPI32_Descriptor,   FALSE },
 100     { &USER32_Descriptor,   TRUE  },
 101     { &VERSION_Descriptor,  TRUE  },
 102     { &W32SKRNL_Descriptor, TRUE  },
 103     { &WINMM_Descriptor,    TRUE  },
 104     { &WINSPOOL_Descriptor, TRUE  },
 105     { &WNASPI32_Descriptor, TRUE  },
 106     { &WOW32_Descriptor,    TRUE  },
 107     { &WSOCK32_Descriptor,  TRUE  },
 108     /* Last entry */
 109     { NULL, FALSE }
 110 };
 111
 112
 113 /***********************************************************************
 114  *           BUILTIN32_DoLoadImage
 115  *
 116  * Load a built-in Win32 module. Helper function for BUILTIN32_LoadImage.
 117  */
 118 static HMODULE32 BUILTIN32_DoLoadImage( BUILTIN32_DLL *dll )
 119 {
 120     extern void RELAY_CallFrom32();
 121
 122     IMAGE_DATA_DIRECTORY *dir;
 123     IMAGE_DOS_HEADER *dos;
 124     IMAGE_NT_HEADERS *nt;
 125     IMAGE_SECTION_HEADER *sec;
 126     IMAGE_EXPORT_DIRECTORY *exp;
 127     LPVOID *funcs;
 128     LPSTR *names;
 129     DEBUG_ENTRY_POINT *debug;
 130     INT32 i, size;
 131     BYTE *addr;
 132
 133     /* Allocate the module */
 134
 135     size = (sizeof(IMAGE_DOS_HEADER)
 136             + sizeof(IMAGE_NT_HEADERS)
 137             + 2 * sizeof(IMAGE_SECTION_HEADER)
 138             + sizeof(IMAGE_EXPORT_DIRECTORY)
 139             + dll->descr->nb_funcs * sizeof(LPVOID)
 140             + dll->descr->nb_names * sizeof(LPSTR));
 141 #ifdef __i386__
 142     if (TRACE_ON(relay))
 143         size += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 144 #endif
 145     addr  = VirtualAlloc( NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE );
 146     if (!addr) return 0;
 147     dos   = (IMAGE_DOS_HEADER *)addr;
 148     nt    = (IMAGE_NT_HEADERS *)(dos + 1);
 149     sec   = (IMAGE_SECTION_HEADER *)(nt + 1);
 150     exp   = (IMAGE_EXPORT_DIRECTORY *)(sec + 2);
 151     funcs = (LPVOID *)(exp + 1);
 152     names = (LPSTR *)(funcs + dll->descr->nb_funcs);
 153     debug = (DEBUG_ENTRY_POINT *)(names + dll->descr->nb_names);
 154
 155     /* Build the DOS and NT headers */
 156
 157     dos->e_magic  = IMAGE_DOS_SIGNATURE;
 158     dos->e_lfanew = sizeof(*dos);
 159
 160     nt->Signature                       = IMAGE_NT_SIGNATURE;
 161     nt->FileHeader.Machine              = IMAGE_FILE_MACHINE_I386;
 162     nt->FileHeader.NumberOfSections     = 2;  /* exports + code */
 163     nt->FileHeader.SizeOfOptionalHeader = sizeof(nt->OptionalHeader);
 164     nt->FileHeader.Characteristics      = IMAGE_FILE_DLL;
 165
 166     nt->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR_MAGIC;
 167     nt->OptionalHeader.SizeOfCode                  = 0x1000;
 168     nt->OptionalHeader.SizeOfInitializedData       = 0;
 169     nt->OptionalHeader.SizeOfUninitializedData     = 0;
 170     nt->OptionalHeader.ImageBase                   = (DWORD)addr;
 171     nt->OptionalHeader.SectionAlignment            = 0x1000;
 172     nt->OptionalHeader.FileAlignment               = 0x1000;
 173     nt->OptionalHeader.MajorOperatingSystemVersion = 1;
 174     nt->OptionalHeader.MinorOperatingSystemVersion = 0;
 175     nt->OptionalHeader.MajorSubsystemVersion       = 4;
 176     nt->OptionalHeader.MinorSubsystemVersion       = 0;
 177     nt->OptionalHeader.SizeOfImage                 = size;
 178     nt->OptionalHeader.SizeOfHeaders               = (BYTE *)exp - addr;
 179     nt->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
 180     if (dll->descr->dllentrypoint)
 181         nt->OptionalHeader.AddressOfEntryPoint = (DWORD)dll->descr->dllentrypoint - (DWORD)addr;
 182
 183     /* Build the export directory */
 184
 185     dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
 186     dir->VirtualAddress = (BYTE *)exp - addr;
 187     dir->Size = sizeof(*exp)
 188                 + dll->descr->nb_funcs * sizeof(LPVOID)
 189                 + dll->descr->nb_names * sizeof(LPSTR);
 190
 191     /* Build the exports section */
 192
 193     strcpy( sec->Name, ".edata" );
 194     sec->Misc.VirtualSize = dir->Size;
 195     sec->VirtualAddress   = (BYTE *)exp - addr;
 196     sec->SizeOfRawData    = dir->Size;
 197     sec->PointerToRawData = (BYTE *)exp - addr;
 198     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 199                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ |
 200                              IMAGE_SCN_MEM_WRITE);
 201
 202     /* Build the code section */
 203
 204     sec++;
 205     strcpy( sec->Name, ".code" );
 206     sec->SizeOfRawData = 0;
 207 #ifdef __i386__
 208     if (TRACE_ON(relay))
 209         sec->SizeOfRawData += dll->descr->nb_funcs * sizeof(DEBUG_ENTRY_POINT);
 210 #endif
 211     sec->Misc.VirtualSize = sec->SizeOfRawData;
 212     sec->VirtualAddress   = (BYTE *)debug - addr;
 213     sec->PointerToRawData = (BYTE *)debug - addr;
 214     sec->Characteristics  = (IMAGE_SCN_CNT_INITIALIZED_DATA |
 215                              IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
 216
 217     /* Build the exports section data */
 218
 219     exp->Name                  = ((BYTE *)dll->descr->name) - addr;  /*??*/
 220     exp->Base                  = dll->descr->base;
 221     exp->NumberOfFunctions     = dll->descr->nb_funcs;
 222     exp->NumberOfNames         = dll->descr->nb_names;
 223     exp->AddressOfFunctions    = (LPDWORD *)((BYTE *)funcs - addr);
 224     exp->AddressOfNames        = (LPDWORD *)((BYTE *)names - addr);
 225     exp->AddressOfNameOrdinals = (LPWORD *)((BYTE *)dll->descr->ordinals - addr);
 226
 227     /* Build the funcs table */
 228
 229     for (i = 0; i < dll->descr->nb_funcs; i++, funcs++, debug++)
 230     {
 231         BYTE args = dll->descr->args[i];
 232         int j;
 233
 234         if (!dll->descr->functions[i]) continue;
 235         *funcs = (LPVOID)((BYTE *)dll->descr->functions[i] - addr);
 236 #ifdef __i386__
 237         if (!TRACE_ON(relay)) continue;
 238         for (j=0;j<dll->descr->nb_names;j++)
 239             if (dll->descr->ordinals[j] == i)
 240                 break;
 241         if (j<dll->descr->nb_names) {
 242             if (dll->descr->names[j]) {
 243                 char buffer[200];
 244                 sprintf(buffer,"%s.%d: %s",dll->descr->name,i,dll->descr->names[j]);
 245                 if (!RELAY_ShowDebugmsgRelay(buffer))
 246                     continue;
 247             }
 248         }
 249         switch(args)
 250         {
 251         case 0xfe:  /* register func */
 252             debug->call       = 0xe8;
 253             debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 254                                 (DWORD)&debug->ret;
 255             debug->ret        = 0x90;  /* nop */
 256             debug->args       = 0;
 257             *funcs = (LPVOID)((BYTE *)debug - addr);
 258             break;
 259         case 0xff:  /* stub or extern */
 260             break;
 261         default:  /* normal function (stdcall or cdecl) */
 262             debug->call       = 0xe8;
 263             debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 264                                 (DWORD)&debug->ret;
 265             debug->ret        = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
 266             debug->args       = (args & 0x7f) * sizeof(int);
 267             *funcs = (LPVOID)((BYTE *)debug - addr);
 268             break;
 269         }
 270 #endif  /* __i386__ */
 271     }
 272
 273     /* Build the names table */
 274
 275     for (i = 0; i < exp->NumberOfNames; i++, names++)
 276         if (dll->descr->names[i])
 277             *names = (LPSTR)((BYTE *)dll->descr->names[i] - addr);
 278
 279     return (HMODULE32)addr;
 280 }
 281
 282 /***********************************************************************
 283  *           BUILTIN32_LoadImage
 284  *
 285  * Load a built-in module. If the 'force' parameter is FALSE, we only
 286  * load the module if it has not been disabled via the -dll option.
 287  */
 288 HMODULE32 BUILTIN32_LoadImage( LPCSTR name, OFSTRUCT *ofs, BOOL32 force )
 289 {
 290     BUILTIN32_DLL *table;
 291     char dllname[16], *p;
 292
 293     /* Fix the name in case we have a full path and extension */
 294
 295     if ((p = strrchr( name, '\\' ))) name = p + 1;
 296     lstrcpyn32A( dllname, name, sizeof(dllname) );
 297     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 298
 299     for (table = BuiltinDLLs; table->descr; table++)
 300         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 301     if (!table->descr) return 0;
 302     if (!table->used)
 303     {
 304         if (!force) return 0;
 305         table->used = TRUE;  /* So next time we use it at once */
 306     }
 307
 308     sprintf( ofs->szPathName, "%s.DLL", table->descr->name );
 309     return BUILTIN32_DoLoadImage( table );
 310 }
 311
 312
 313 /***********************************************************************
 314  *           BUILTIN32_GetEntryPoint
 315  *
 316  * Return the name of the DLL entry point corresponding
 317  * to a relay entry point address. This is used only by relay debugging.
 318  *
 319  * This function _must_ return the real entry point to call
 320  * after the debug info is printed.
 321  */
 322 ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
 323                                       unsigned int *typemask )
 324 {
 325     BUILTIN32_DLL *dll;
 326     HMODULE32 hModule;
 327     int ordinal = 0, i;
 328
 329     /* First find the module */
 330
 331     for (dll = BuiltinDLLs; dll->descr; dll++)
 332         if (dll->used
 333             && ((hModule = GetModuleHandle32A(dll->descr->name)) != 0))
 334         {
 335             IMAGE_SECTION_HEADER *sec = PE_SECTIONS(hModule);
 336             DEBUG_ENTRY_POINT *debug =
 337                  (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 338             DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
 339
 340             if (debug <= func && func < debug + dll->descr->nb_funcs)
 341             {
 342                 ordinal = func - debug;
 343                 break;
 344             }
 345         }
 346
 347     if (!dll->descr)
 348         return (ENTRYPOINT32)NULL;
 349
 350     /* Now find the function */
 351
 352     for (i = 0; i < dll->descr->nb_names; i++)
 353         if (dll->descr->ordinals[i] == ordinal) break;
 354     assert( i < dll->descr->nb_names );
 355
 356     sprintf( buffer, "%s.%d: %s", dll->descr->name, ordinal + dll->descr->base,
 357              dll->descr->names[i] );
 358     *typemask = dll->descr->argtypes[ordinal];
 359     return dll->descr->functions[ordinal];
 360 }
 361
 362
 363 /***********************************************************************
 364  *           BUILTIN32_Unimplemented
 365  *
 366  * This function is called for unimplemented 32-bit entry points (declared
 367  * as 'stub' in the spec file).
 368  */
 369 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
 370 {
 371     const char *func_name = "???";
 372     int i;
 373
 374     __RESTORE_ES;  /* Just in case */
 375
 376     for (i = 0; i < descr->nb_names; i++)
 377         if (descr->ordinals[i] + descr->base == ordinal) break;
 378     if (i < descr->nb_names) func_name = descr->names[i];
 379
 380     MSG( "No handler for Win32 routine %s.%d: %s",
 381              descr->name, ordinal, func_name );
 382 #ifdef __GNUC__
 383     MSG( " (called from %p)", __builtin_return_address(1) );
 384 #endif
 385     MSG( "\n" );
 386     ExitProcess(1);
 387 }
 388
 389
 390 /***********************************************************************
 391  *           BUILTIN32_EnableDLL
 392  *
 393  * Enable or disable a built-in DLL.
 394  */
 395 int BUILTIN32_EnableDLL( const char *name, int len, int enable )
 396 {
 397     int i;
 398     BUILTIN32_DLL *dll;
 399
 400     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 401     {
 402         if (!lstrncmpi32A( name, dll->descr->name, len ))
 403         {
 404             dll->used = enable;
 405             return TRUE;
 406         }
 407     }
 408     return FALSE;
 409 }
 410
 411
 412 /***********************************************************************
 413  *           BUILTIN32_PrintDLLs
 414  *
 415  * Print the list of built-in DLLs that can be disabled.
 416  */
 417 void BUILTIN32_PrintDLLs(void)
 418 {
 419     int i;
 420     BUILTIN32_DLL *dll;
 421
 422     MSG("Available Win32 DLLs:\n");
 423     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 424         MSG("%-9s%c", dll->descr->name,
 425                  ((++i) % 8) ? ' ' : '\n' );
 426     MSG("\n");
 427 }