if1632/builtin.c

   1 /*
   2  * Built-in modules
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include "windows.h"
  11 #include "builtin32.h"
  12 #include "gdi.h"
  13 #include "global.h"
  14 #include "heap.h"
  15 #include "module.h"
  16 #include "miscemu.h"
  17 #include "neexe.h"
  18 #include "stackframe.h"
  19 #include "user.h"
  20 #include "process.h"
  21 #include "snoop.h"
  22 #include "task.h"
  23 #include "debug.h"
  24
  25 /* Built-in modules descriptors */
  26 /* Don't change these structures! (see tools/build.c) */
  27
  28 typedef struct
  29 {
  30     const char *name;              /* DLL name */
  31     void       *module_start;      /* 32-bit address of the module data */
  32     int         module_size;       /* Size of the module data */
  33     const BYTE *code_start;        /* 32-bit address of DLL code */
  34     const BYTE *data_start;        /* 32-bit address of DLL data */
  35 } WIN16_DESCRIPTOR;
  36
  37 typedef struct
  38 {
  39     const WIN16_DESCRIPTOR *descr;     /* DLL descriptor */
  40     int                     flags;     /* flags (see below) */
  41 } BUILTIN16_DLL;
  42
  43 /* DLL flags */
  44 #define DLL_FLAG_NOT_USED    0x01  /* Use original Windows DLL if possible */
  45 #define DLL_FLAG_ALWAYS_USED 0x02  /* Always use built-in DLL */
  46
  47 /* 16-bit DLLs */
  48
  49 extern const WIN16_DESCRIPTOR AVIFILE_Descriptor;
  50 extern const WIN16_DESCRIPTOR COMM_Descriptor;
  51 extern const WIN16_DESCRIPTOR COMMDLG_Descriptor;
  52 extern const WIN16_DESCRIPTOR COMPOBJ_Descriptor;
  53 extern const WIN16_DESCRIPTOR DDEML_Descriptor;
  54 extern const WIN16_DESCRIPTOR DISPDIB_Descriptor;
  55 extern const WIN16_DESCRIPTOR DISPLAY_Descriptor;
  56 extern const WIN16_DESCRIPTOR GDI_Descriptor;
  57 extern const WIN16_DESCRIPTOR KERNEL_Descriptor;
  58 extern const WIN16_DESCRIPTOR KEYBOARD_Descriptor;
  59 extern const WIN16_DESCRIPTOR LZEXPAND_Descriptor;
  60 extern const WIN16_DESCRIPTOR MMSYSTEM_Descriptor;
  61 extern const WIN16_DESCRIPTOR MOUSE_Descriptor;
  62 extern const WIN16_DESCRIPTOR MSACM_Descriptor;
  63 extern const WIN16_DESCRIPTOR MSVIDEO_Descriptor;
  64 extern const WIN16_DESCRIPTOR OLE2CONV_Descriptor;
  65 extern const WIN16_DESCRIPTOR OLE2DISP_Descriptor;
  66 extern const WIN16_DESCRIPTOR OLE2NLS_Descriptor;
  67 extern const WIN16_DESCRIPTOR OLE2PROX_Descriptor;
  68 extern const WIN16_DESCRIPTOR OLE2THK_Descriptor;
  69 extern const WIN16_DESCRIPTOR OLE2_Descriptor;
  70 extern const WIN16_DESCRIPTOR OLECLI_Descriptor;
  71 extern const WIN16_DESCRIPTOR OLESVR_Descriptor;
  72 extern const WIN16_DESCRIPTOR RASAPI16_Descriptor;
  73 extern const WIN16_DESCRIPTOR SHELL_Descriptor;
  74 extern const WIN16_DESCRIPTOR SOUND_Descriptor;
  75 extern const WIN16_DESCRIPTOR STORAGE_Descriptor;
  76 extern const WIN16_DESCRIPTOR STRESS_Descriptor;
  77 extern const WIN16_DESCRIPTOR SYSTEM_Descriptor;
  78 extern const WIN16_DESCRIPTOR TOOLHELP_Descriptor;
  79 extern const WIN16_DESCRIPTOR TYPELIB_Descriptor;
  80 extern const WIN16_DESCRIPTOR USER_Descriptor;
  81 extern const WIN16_DESCRIPTOR VER_Descriptor;
  82 extern const WIN16_DESCRIPTOR W32SYS_Descriptor;
  83 extern const WIN16_DESCRIPTOR WIN32S16_Descriptor;
  84 extern const WIN16_DESCRIPTOR WIN87EM_Descriptor;
  85 extern const WIN16_DESCRIPTOR WINASPI_Descriptor;
  86 extern const WIN16_DESCRIPTOR WINDEBUG_Descriptor;
  87 extern const WIN16_DESCRIPTOR WINEPS_Descriptor;
  88 extern const WIN16_DESCRIPTOR WING_Descriptor;
  89 extern const WIN16_DESCRIPTOR WINSOCK_Descriptor;
  90 extern const WIN16_DESCRIPTOR WPROCS_Descriptor;
  91
  92 /* Table of all built-in DLLs */
  93
  94 static BUILTIN16_DLL BuiltinDLLs[] =
  95 {
  96     { &KERNEL_Descriptor,   DLL_FLAG_ALWAYS_USED },
  97     { &USER_Descriptor,     DLL_FLAG_ALWAYS_USED },
  98     { &GDI_Descriptor,      DLL_FLAG_ALWAYS_USED },
  99     { &SYSTEM_Descriptor,   DLL_FLAG_ALWAYS_USED },
 100     { &DISPLAY_Descriptor,  DLL_FLAG_ALWAYS_USED },
 101     { &WPROCS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 102     { &WINDEBUG_Descriptor, DLL_FLAG_NOT_USED },
 103     { &AVIFILE_Descriptor,  DLL_FLAG_NOT_USED },
 104     { &COMMDLG_Descriptor,  DLL_FLAG_NOT_USED },
 105     { &COMPOBJ_Descriptor,  DLL_FLAG_NOT_USED },
 106     { &DDEML_Descriptor,    DLL_FLAG_NOT_USED },
 107     { &DISPDIB_Descriptor,  0 },
 108     { &KEYBOARD_Descriptor, 0 },
 109     { &COMM_Descriptor,     0 },
 110     { &LZEXPAND_Descriptor, 0 },
 111     { &MMSYSTEM_Descriptor, 0 },
 112     { &MOUSE_Descriptor,    0 },
 113     { &MSACM_Descriptor,    0 },
 114     { &MSVIDEO_Descriptor,  0 },
 115     { &OLE2CONV_Descriptor, DLL_FLAG_NOT_USED },
 116     { &OLE2DISP_Descriptor, DLL_FLAG_NOT_USED },
 117     { &OLE2NLS_Descriptor,  DLL_FLAG_NOT_USED },
 118     { &OLE2PROX_Descriptor, DLL_FLAG_NOT_USED },
 119     { &OLE2THK_Descriptor,  DLL_FLAG_NOT_USED },
 120     { &OLE2_Descriptor,     DLL_FLAG_NOT_USED },
 121     { &OLECLI_Descriptor,   DLL_FLAG_NOT_USED },
 122     { &OLESVR_Descriptor,   DLL_FLAG_NOT_USED },
 123     { &RASAPI16_Descriptor, 0 },
 124     { &SHELL_Descriptor,    0 },
 125     { &SOUND_Descriptor,    0 },
 126     { &STORAGE_Descriptor,  DLL_FLAG_NOT_USED },
 127     { &STRESS_Descriptor,   0 },
 128     { &TOOLHELP_Descriptor, 0 },
 129     { &TYPELIB_Descriptor,  DLL_FLAG_NOT_USED },
 130     { &VER_Descriptor,      0 },
 131     { &W32SYS_Descriptor,   DLL_FLAG_NOT_USED },
 132     { &WIN32S16_Descriptor, DLL_FLAG_NOT_USED },
 133     { &WIN87EM_Descriptor,  DLL_FLAG_NOT_USED },
 134     { &WINASPI_Descriptor,  0 },
 135     { &WINEPS_Descriptor,   DLL_FLAG_ALWAYS_USED },
 136     { &WING_Descriptor,     0 },
 137     { &WINSOCK_Descriptor,  0 },
 138     /* Last entry */
 139     { NULL, 0 }
 140 };
 141
 142   /* Ordinal number for interrupt 0 handler in WPROCS.DLL */
 143 #define FIRST_INTERRUPT_ORDINAL 100
 144
 145
 146 /***********************************************************************
 147  *           BUILTIN_DoLoadModule16
 148  *
 149  * Load a built-in Win16 module. Helper function for BUILTIN_LoadModule
 150  * and BUILTIN_Init.
 151  */
 152 static HMODULE16 BUILTIN_DoLoadModule16( const WIN16_DESCRIPTOR *descr )
 153 {
 154     NE_MODULE *pModule;
 155     int minsize;
 156     SEGTABLEENTRY *pSegTable;
 157
 158     HMODULE16 hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, descr->module_start,
 159                                             descr->module_size, 0,
 160                                             FALSE, FALSE, FALSE, NULL );
 161     if (!hModule) return 0;
 162     FarSetOwner( hModule, hModule );
 163
 164     TRACE(module, "Built-in %s: hmodule=%04x\n",
 165                     descr->name, hModule );
 166     pModule = (NE_MODULE *)GlobalLock16( hModule );
 167     pModule->self = hModule;
 168
 169     /* Allocate the code segment */
 170
 171     pSegTable = NE_SEG_TABLE( pModule );
 172     pSegTable->hSeg = GLOBAL_CreateBlock( GMEM_FIXED, descr->code_start,
 173                                               pSegTable->minsize, hModule,
 174                                               TRUE, TRUE, FALSE, NULL );
 175     if (!pSegTable->hSeg) return 0;
 176     pSegTable++;
 177
 178     /* Allocate the data segment */
 179
 180     minsize = pSegTable->minsize ? pSegTable->minsize : 0x10000;
 181     minsize += pModule->heap_size;
 182     if (minsize > 0x10000) minsize = 0x10000;
 183     pSegTable->hSeg = GLOBAL_Alloc( GMEM_FIXED, minsize,
 184                                         hModule, FALSE, FALSE, FALSE );
 185     if (!pSegTable->hSeg) return 0;
 186     if (pSegTable->minsize) memcpy( GlobalLock16( pSegTable->hSeg ),
 187                                     descr->data_start, pSegTable->minsize);
 188     if (pModule->heap_size)
 189         LocalInit( GlobalHandleToSel(pSegTable->hSeg),
 190                 pSegTable->minsize, minsize );
 191
 192     NE_RegisterModule( pModule );
 193     return hModule;
 194 }
 195
 196
 197 /***********************************************************************
 198  *           BUILTIN_Init
 199  *
 200  * Load all built-in modules marked as 'always used'.
 201  */
 202 BOOL32 BUILTIN_Init(void)
 203 {
 204     BUILTIN16_DLL *dll;
 205     NE_MODULE *pModule;
 206     WORD vector;
 207     HMODULE16 hModule;
 208     WORD cs, ds;
 209
 210     fnBUILTIN_LoadModule = BUILTIN_LoadModule;
 211
 212     for (dll = BuiltinDLLs; dll->descr; dll++)
 213     {
 214         if (dll->flags & DLL_FLAG_ALWAYS_USED)
 215             if (!BUILTIN_DoLoadModule16( dll->descr )) return FALSE;
 216     }
 217
 218     /* Set the USER and GDI heap selectors */
 219
 220     pModule      = NE_GetPtr( GetModuleHandle16( "USER" ));
 221     USER_HeapSel = pModule ? GlobalHandleToSel((NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->hSeg) : 0;
 222     pModule      = NE_GetPtr( GetModuleHandle16( "GDI" ));
 223     GDI_HeapSel  = pModule ? GlobalHandleToSel((NE_SEG_TABLE( pModule ) + pModule->dgroup - 1)->hSeg) : 0;
 224
 225     /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
 226
 227     hModule = GetModuleHandle16( "KERNEL" );
 228     NE_SetEntryPoint( hModule, 178, GetWinFlags() );
 229
 230     /* Initialize KERNEL.454/455 (__FLATCS/__FLATDS) */
 231
 232     GET_CS(cs); GET_DS(ds);
 233     NE_SetEntryPoint( hModule, 454, cs );
 234     NE_SetEntryPoint( hModule, 455, ds );
 235
 236     /* Initialize KERNEL.THHOOK */
 237
 238     TASK_InstallTHHook((THHOOK *)PTR_SEG_TO_LIN(
 239                                   (SEGPTR)NE_GetEntryPoint( hModule, 332 )));
 240
 241     /* Initialize the real-mode selector entry points */
 242
 243 #define SET_ENTRY_POINT( num, addr ) \
 244     NE_SetEntryPoint( hModule, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
 245                       DOSMEM_MapDosToLinear(addr), 0x10000, hModule, \
 246                       FALSE, FALSE, FALSE, NULL ))
 247
 248     SET_ENTRY_POINT( 183, 0x00000 );  /* KERNEL.183: __0000H */
 249     SET_ENTRY_POINT( 174, 0xa0000 );  /* KERNEL.174: __A000H */
 250     SET_ENTRY_POINT( 181, 0xb0000 );  /* KERNEL.181: __B000H */
 251     SET_ENTRY_POINT( 182, 0xb8000 );  /* KERNEL.182: __B800H */
 252     SET_ENTRY_POINT( 195, 0xc0000 );  /* KERNEL.195: __C000H */
 253     SET_ENTRY_POINT( 179, 0xd0000 );  /* KERNEL.179: __D000H */
 254     SET_ENTRY_POINT( 190, 0xe0000 );  /* KERNEL.190: __E000H */
 255     SET_ENTRY_POINT( 173, 0xf0000 );  /* KERNEL.173: __ROMBIOS */
 256     SET_ENTRY_POINT( 194, 0xf0000 );  /* KERNEL.194: __F000H */
 257     NE_SetEntryPoint( hModule, 193, DOSMEM_BiosSeg ); /* KERNEL.193: __0040H */
 258 #undef SET_ENTRY_POINT
 259
 260     /* Set interrupt vectors from entry points in WPROCS.DLL */
 261
 262     hModule = GetModuleHandle16( "WPROCS" );
 263     for (vector = 0; vector < 256; vector++)
 264     {
 265         FARPROC16 proc = NE_GetEntryPoint( hModule,
 266                                            FIRST_INTERRUPT_ORDINAL + vector );
 267         assert(proc);
 268         INT_SetPMHandler( vector, proc );
 269     }
 270
 271     SNOOP16_Init();
 272
 273     return TRUE;
 274 }
 275
 276
 277 /***********************************************************************
 278  *           BUILTIN_LoadModule
 279  *
 280  * Load a built-in module. If the 'force' parameter is FALSE, we only
 281  * load the module if it has not been disabled via the -dll option.
 282  */
 283 HMODULE16 BUILTIN_LoadModule( LPCSTR name, BOOL32 force )
 284 {
 285     BUILTIN16_DLL *table;
 286     char dllname[16], *p;
 287
 288     /* Fix the name in case we have a full path and extension */
 289
 290     if ((p = strrchr( name, '\\' ))) name = p + 1;
 291     lstrcpyn32A( dllname, name, sizeof(dllname) );
 292     if ((p = strrchr( dllname, '.' ))) *p = '\0';
 293
 294     for (table = BuiltinDLLs; table->descr; table++)
 295         if (!lstrcmpi32A( table->descr->name, dllname )) break;
 296     if (!table->descr) return 0;
 297     if ((table->flags & DLL_FLAG_NOT_USED) && !force) return 0;
 298
 299     return BUILTIN_DoLoadModule16( table->descr );
 300 }
 301
 302
 303 /***********************************************************************
 304  *           BUILTIN_GetEntryPoint16
 305  *
 306  * Return the ordinal and name corresponding to a CS:IP address.
 307  * This is used only by relay debugging.
 308  */
 309 LPCSTR BUILTIN_GetEntryPoint16( WORD cs, WORD ip, WORD *pOrd )
 310 {
 311     static char buffer[80];
 312     WORD ordinal, i, max_offset;
 313     register BYTE *p;
 314     NE_MODULE *pModule;
 315
 316     if (!(pModule = NE_GetPtr( FarGetOwner( GlobalHandle16(cs) ))))
 317         return NULL;
 318
 319     /* Search for the ordinal */
 320
 321     p = (BYTE *)pModule + pModule->entry_table;
 322     max_offset = 0;
 323     ordinal = 1;
 324     *pOrd = 0;
 325     while (*p)
 326     {
 327         switch(p[1])
 328         {
 329         case 0:    /* unused */
 330             ordinal += *p;
 331             p += 2;
 332             break;
 333         case 1:    /* code segment */
 334             i = *p;
 335             p += 2;
 336             while (i-- > 0)
 337             {
 338                 p++;
 339                 if ((*(WORD *)p <= ip) && (*(WORD *)p >= max_offset))
 340                 {
 341                     max_offset = *(WORD *)p;
 342                     *pOrd = ordinal;
 343                 }
 344                 p += 2;
 345                 ordinal++;
 346             }
 347             break;
 348         case 0xff: /* moveable (should not happen in built-in modules) */
 349             TRACE( relay, "Built-in module has moveable entry\n" );
 350             ordinal += *p;
 351             p += 2 + *p * 6;
 352             break;
 353         default:   /* other segment */
 354             ordinal += *p;
 355             p += 2 + *p * 3;
 356             break;
 357         }
 358     }
 359
 360     /* Search for the name in the resident names table */
 361     /* (built-in modules have no non-resident table)   */
 362
 363     p = (BYTE *)pModule + pModule->name_table;
 364     while (*p)
 365     {
 366         p += *p + 1 + sizeof(WORD);
 367         if (*(WORD *)(p + *p + 1) == *pOrd) break;
 368     }
 369
 370     sprintf( buffer, "%.*s.%d: %.*s",
 371              *((BYTE *)pModule + pModule->name_table),
 372              (char *)pModule + pModule->name_table + 1,
 373              *pOrd, *p, (char *)(p + 1) );
 374     return buffer;
 375 }
 376
 377
 378 /**********************************************************************
 379  *          BUILTIN_DefaultIntHandler
 380  *
 381  * Default interrupt handler.
 382  */
 383 void BUILTIN_DefaultIntHandler( CONTEXT *context )
 384 {
 385     WORD ordinal;
 386     STACK16FRAME *frame = CURRENT_STACK16;
 387     BUILTIN_GetEntryPoint16( frame->entry_cs, frame->entry_ip, &ordinal );
 388     INT_BARF( context, ordinal - FIRST_INTERRUPT_ORDINAL );
 389 }
 390
 391
 392 /***********************************************************************
 393  *           BUILTIN_ParseDLLOptions
 394  *
 395  * Set runtime DLL usage flags
 396  */
 397 BOOL32 BUILTIN_ParseDLLOptions( const char *str )
 398 {
 399     BUILTIN16_DLL *dll;
 400     const char *p;
 401
 402     while (*str)
 403     {
 404         while (*str && isspace(*str)) str++;
 405         if (!*str) return TRUE;
 406         if ((*str != '+') && (*str != '-')) return FALSE;
 407         str++;
 408         if (!(p = strchr( str, ',' ))) p = str + strlen(str);
 409         while ((p > str) && isspace(p[-1])) p--;
 410         if (p == str) return FALSE;
 411         for (dll = BuiltinDLLs; dll->descr; dll++)
 412         {
 413             if (!lstrncmpi32A( str, dll->descr->name, (int)(p - str) ))
 414             {
 415                 if (dll->descr->name[(int)(p-str)])  /* only partial match */
 416                         continue;
 417                 if (str[-1] == '-')
 418                 {
 419                     if (dll->flags & DLL_FLAG_ALWAYS_USED) return FALSE;
 420                     dll->flags |= DLL_FLAG_NOT_USED;
 421                 }
 422                 else dll->flags &= ~DLL_FLAG_NOT_USED;
 423                 break;
 424             }
 425         }
 426         if (!dll->descr)
 427             if (!BUILTIN32_EnableDLL( str, (int)(p - str), (str[-1] == '+') ))
 428                 return FALSE;
 429         str = p;
 430         while (*str && (isspace(*str) || (*str == ','))) str++;
 431     }
 432     return TRUE;
 433 }
 434
 435
 436 /***********************************************************************
 437  *           BUILTIN_PrintDLLs
 438  *
 439  * Print the list of built-in DLLs that can be disabled.
 440  */
 441 void BUILTIN_PrintDLLs(void)
 442 {
 443     int i;
 444     BUILTIN16_DLL *dll;
 445
 446     MSG("Example: -dll -ole2    Do not use emulated OLE2.DLL\n");
 447     MSG("Available Win16 DLLs:\n");
 448     for (i = 0, dll = BuiltinDLLs; dll->descr; dll++)
 449     {
 450         if (!(dll->flags & DLL_FLAG_ALWAYS_USED))
 451             MSG("%-9s%c", dll->descr->name,
 452                      ((++i) % 8) ? ' ' : '\n' );
 453     }
 454     MSG("\n");
 455     BUILTIN32_PrintDLLs();
 456 }