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 #include "main.h"
  14
  15 typedef struct
  16 {
  17     BYTE  call;                    /* 0xe8 call callfrom32 (relative) */
  18     DWORD callfrom32 WINE_PACKED;  /* RELAY_CallFrom32 relative addr */
  19     BYTE  ret;                     /* 0xc2 ret $n  or  0xc3 ret */
  20     WORD  args;                    /* nb of args to remove from the stack */
  21 } DEBUG_ENTRY_POINT;
  22
  23 typedef struct
  24 {
  25     const BUILTIN32_DESCRIPTOR *descr;     /* DLL descriptor */
  26     BOOL32                      used;      /* Used by default */
  27 } BUILTIN32_DLL;
  28
  29
  30 extern const BUILTIN32_DESCRIPTOR ADVAPI32_Descriptor;
  31 extern const BUILTIN32_DESCRIPTOR AVIFIL32_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 IMAGEHLP_Descriptor;
  43 extern const BUILTIN32_DESCRIPTOR IMM32_Descriptor;
  44 extern const BUILTIN32_DESCRIPTOR KERNEL32_Descriptor;
  45 extern const BUILTIN32_DESCRIPTOR LZ32_Descriptor;
  46 extern const BUILTIN32_DESCRIPTOR MPR_Descriptor;
  47 extern const BUILTIN32_DESCRIPTOR MSACM32_Descriptor;
  48 extern const BUILTIN32_DESCRIPTOR MSNET32_Descriptor;
  49 extern const BUILTIN32_DESCRIPTOR MSVFW32_Descriptor;
  50 extern const BUILTIN32_DESCRIPTOR NTDLL_Descriptor;
  51 extern const BUILTIN32_DESCRIPTOR OLE32_Descriptor;
  52 extern const BUILTIN32_DESCRIPTOR OLEAUT32_Descriptor;
  53 extern const BUILTIN32_DESCRIPTOR OLECLI32_Descriptor;
  54 extern const BUILTIN32_DESCRIPTOR OLEDLG_Descriptor;
  55 extern const BUILTIN32_DESCRIPTOR OLESVR32_Descriptor;
  56 extern const BUILTIN32_DESCRIPTOR PSAPI_Descriptor;
  57 extern const BUILTIN32_DESCRIPTOR RASAPI32_Descriptor;
  58 extern const BUILTIN32_DESCRIPTOR SHELL32_Descriptor;
  59 extern const BUILTIN32_DESCRIPTOR TAPI32_Descriptor;
  60 extern const BUILTIN32_DESCRIPTOR USER32_Descriptor;
  61 extern const BUILTIN32_DESCRIPTOR VERSION_Descriptor;
  62 extern const BUILTIN32_DESCRIPTOR W32SKRNL_Descriptor;
  63 extern const BUILTIN32_DESCRIPTOR WINMM_Descriptor;
  64 extern const BUILTIN32_DESCRIPTOR WINSPOOL_Descriptor;
  65 extern const BUILTIN32_DESCRIPTOR WNASPI32_Descriptor;
  66 extern const BUILTIN32_DESCRIPTOR WOW32_Descriptor;
  67 extern const BUILTIN32_DESCRIPTOR WSOCK32_Descriptor;
  68
  69 static BUILTIN32_DLL BuiltinDLLs[] =
  70 {
  71     { &ADVAPI32_Descriptor, TRUE  },
  72     { &AVIFIL32_Descriptor, FALSE },
  73     { &COMCTL32_Descriptor, FALSE },
  74     { &COMDLG32_Descriptor, TRUE  },
  75     { &CRTDLL_Descriptor,   TRUE  },
  76     { &DCIMAN32_Descriptor, FALSE },
  77     { &DDRAW_Descriptor,    TRUE  },
  78     { &DINPUT_Descriptor,   TRUE  },
  79     { &DPLAY_Descriptor,    TRUE  },
  80     { &DPLAYX_Descriptor,   TRUE  },
  81     { &DSOUND_Descriptor,   TRUE  },
  82     { &GDI32_Descriptor,    TRUE  },
  83     { &IMAGEHLP_Descriptor, FALSE },
  84     { &IMM32_Descriptor,    FALSE },
  85     { &KERNEL32_Descriptor, TRUE  },
  86     { &LZ32_Descriptor,     TRUE  },
  87     { &MPR_Descriptor,      TRUE  },
  88     { &MSACM32_Descriptor,  FALSE },
  89     { &MSNET32_Descriptor,  FALSE },
  90     { &MSVFW32_Descriptor,  FALSE },
  91     { &NTDLL_Descriptor,    TRUE  },
  92     { &OLE32_Descriptor,    FALSE },
  93     { &OLEAUT32_Descriptor, FALSE },
  94     { &OLECLI32_Descriptor, FALSE },
  95     { &OLEDLG_Descriptor,   FALSE },
  96     { &OLESVR32_Descriptor, FALSE },
  97     { &PSAPI_Descriptor,    FALSE },
  98     { &RASAPI32_Descriptor, FALSE },
  99     { &SHELL32_Descriptor,  TRUE  },
 100     { &TAPI32_Descriptor,   FALSE },
 101     { &USER32_Descriptor,   TRUE  },
 102     { &VERSION_Descriptor,  TRUE  },
 103     { &W32SKRNL_Descriptor, TRUE  },
 104     { &WINMM_Descriptor,    TRUE  },
 105     { &WINSPOOL_Descriptor, TRUE  },
 106     { &WNASPI32_Descriptor, TRUE  },
 107     { &WOW32_Descriptor,    TRUE  },
 108     { &WSOCK32_Descriptor,  TRUE  },
 109     /* Last entry */
 110     { NULL, FALSE }
 111 };
 112
 113
 114 /***********************************************************************
 115  *           BUILTIN32_DoLoadImage
 116  *
 117  * Load a built-in Win32 module. Helper function for BUILTIN32_LoadImage.
 118  */
 119 static HMODULE32 BUILTIN32_DoLoadImage( BUILTIN32_DLL *dll )
 120 {
 121     extern void RELAY_CallFrom32();
 122
 123     IMAGE_DATA_DIRECTORY *dir;
 124     IMAGE_DOS_HEADER *dos;
 125     IMAGE_NT_HEADERS *nt;
 126     IMAGE_SECTION_HEADER *sec;
 127     IMAGE_EXPORT_DIRECTORY *exp;
 128     LPVOID *funcs;
 129     LPSTR *names;
 130     DEBUG_ENTRY_POINT *debug;
 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         int j;
 234
 235         if (!dll->descr->functions[i]) continue;
 236         *funcs = (LPVOID)((BYTE *)dll->descr->functions[i] - addr);
 237 #ifdef __i386__
 238         if (!TRACE_ON(relay)) continue;
 239         for (j=0;j<dll->descr->nb_names;j++)
 240             if (dll->descr->ordinals[j] == i)
 241                 break;
 242         if (j<dll->descr->nb_names) {
 243             if (dll->descr->names[j]) {
 244                 char buffer[200];
 245                 sprintf(buffer,"%s.%d: %s",dll->descr->name,i,dll->descr->names[j]);
 246                 if (!RELAY_ShowDebugmsgRelay(buffer))
 247                     continue;
 248             }
 249         }
 250         switch(args)
 251         {
 252         case 0xfe:  /* register func */
 253             debug->call       = 0xe8;
 254             debug->callfrom32 = (DWORD)dll->descr->functions[i] -
 255                                 (DWORD)&debug->ret;
 256             debug->ret        = 0x90;  /* nop */
 257             debug->args       = 0;
 258             *funcs = (LPVOID)((BYTE *)debug - addr);
 259             break;
 260         case 0xff:  /* stub or extern */
 261             break;
 262         default:  /* normal function (stdcall or cdecl) */
 263             debug->call       = 0xe8;
 264             debug->callfrom32 = (DWORD)RELAY_CallFrom32 -
 265                                 (DWORD)&debug->ret;
 266             debug->ret        = (args & 0x80) ? 0xc3 : 0xc2; /*ret/ret $n*/
 267             debug->args       = (args & 0x7f) * sizeof(int);
 268             *funcs = (LPVOID)((BYTE *)debug - addr);
 269             break;
 270         }
 271 #endif  /* __i386__ */
 272     }
 273
 274     /* Build the names table */
 275
 276     for (i = 0; i < exp->NumberOfNames; i++, names++)
 277         if (dll->descr->names[i])
 278             *names = (LPSTR)((BYTE *)dll->descr->names[i] - addr);
 279
 280     return (HMODULE32)addr;
 281 }
 282
 283 /***********************************************************************
 284  *           BUILTIN32_LoadImage
 285  *
 286  * Load a built-in module. If the 'force' parameter is FALSE, we only
 287  * load the module if it has not been disabled via the -dll option.
 288  */
 289 HMODULE32 BUILTIN32_LoadImage( LPCSTR name, OFSTRUCT *ofs, BOOL32 force )
 290 {
 291     BUILTIN32_DLL *table;
 292     char dllname[16], *p;
 293
 294     /* Fix the name in case we have a full path and extension */
 295
 296     if ((p = strrchr( name, '\\' ))) name = p + 1;
 297     lstrcpyn32A( dllname, name, sizeof(dllname) );
 298     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 299
 300     for (table = BuiltinDLLs; table->descr; table++)
 301         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 302     if (!table->descr) return 0;
 303     if (!table->used)
 304     {
 305         if (!force) return 0;
 306         table->used = TRUE;  /* So next time we use it at once */
 307     }
 308
 309     sprintf( ofs->szPathName, "%s.DLL", table->descr->name );
 310     return BUILTIN32_DoLoadImage( table );
 311 }
 312
 313
 314 /***********************************************************************
 315  *           BUILTIN32_GetEntryPoint
 316  *
 317  * Return the name of the DLL entry point corresponding
 318  * to a relay entry point address. This is used only by relay debugging.
 319  *
 320  * This function _must_ return the real entry point to call
 321  * after the debug info is printed.
 322  */
 323 ENTRYPOINT32 BUILTIN32_GetEntryPoint( char *buffer, void *relay,
 324                                       unsigned int *typemask )
 325 {
 326     BUILTIN32_DLL *dll;
 327     HMODULE32 hModule;
 328     int ordinal = 0, i;
 329
 330     /* First find the module */
 331
 332     for (dll = BuiltinDLLs; dll->descr; dll++)
 333         if (dll->used
 334             && ((hModule = GetModuleHandle32A(dll->descr->name)) != 0))
 335         {
 336             IMAGE_SECTION_HEADER *sec = PE_SECTIONS(hModule);
 337             DEBUG_ENTRY_POINT *debug =
 338                  (DEBUG_ENTRY_POINT *)((DWORD)hModule + sec[1].VirtualAddress);
 339             DEBUG_ENTRY_POINT *func = (DEBUG_ENTRY_POINT *)relay;
 340
 341             if (debug <= func && func < debug + dll->descr->nb_funcs)
 342             {
 343                 ordinal = func - debug;
 344                 break;
 345             }
 346         }
 347
 348     if (!dll->descr)
 349         return (ENTRYPOINT32)NULL;
 350
 351     /* Now find the function */
 352
 353     for (i = 0; i < dll->descr->nb_names; i++)
 354         if (dll->descr->ordinals[i] == ordinal) break;
 355     assert( i < dll->descr->nb_names );
 356
 357     sprintf( buffer, "%s.%d: %s", dll->descr->name, ordinal + dll->descr->base,
 358              dll->descr->names[i] );
 359     *typemask = dll->descr->argtypes[ordinal];
 360     return dll->descr->functions[ordinal];
 361 }
 362
 363
 364 /***********************************************************************
 365  *           BUILTIN32_Unimplemented
 366  *
 367  * This function is called for unimplemented 32-bit entry points (declared
 368  * as 'stub' in the spec file).
 369  */
 370 void BUILTIN32_Unimplemented( const BUILTIN32_DESCRIPTOR *descr, int ordinal )
 371 {
 372     const char *func_name = "???";
 373     int i;
 374
 375     __RESTORE_ES;  /* Just in case */
 376
 377     for (i = 0; i < descr->nb_names; i++)
 378         if (descr->ordinals[i] + descr->base == ordinal) break;
 379     if (i < descr->nb_names) func_name = descr->names[i];
 380
 381     MSG( "No handler for Win32 routine %s.%d: %s",
 382              descr->name, ordinal, func_name );
 383 #ifdef __GNUC__
 384     MSG( " (called from %p)", __builtin_return_address(1) );
 385 #endif
 386     MSG( "\n" );
 387     ExitProcess(1);
 388 }
 389
 390
 391 /***********************************************************************
 392  *           BUILTIN32_EnableDLL
 393  *
 394  * Enable or disable a built-in DLL.
 395  */
 396 int BUILTIN32_EnableDLL( const char *name, int len, int enable )
 397 {
 398     int i;
 399     BUILTIN32_DLL *dll;
 400
 401     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 402     {
 403         if (!lstrncmpi32A( name, dll->descr->name, len ))
 404         {
 405             dll->used = enable;
 406             return TRUE;
 407         }
 408     }
 409     return FALSE;
 410 }
 411
 412
 413 /***********************************************************************
 414  *           BUILTIN32_PrintDLLs
 415  *
 416  * Print the list of built-in DLLs that can be disabled.
 417  */
 418 void BUILTIN32_PrintDLLs(void)
 419 {
 420     int i;
 421     BUILTIN32_DLL *dll;
 422
 423     MSG("Available Win32 DLLs:\n");
 424     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 425         MSG("%-9s%c", dll->descr->name,
 426                  ((++i) % 8) ? ' ' : '\n' );
 427     MSG("\n");
 428 }