dlls/wbemprox/class.c

   1 /*
   2  * Copyright 2012 Hans Leidekker for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #define COBJMACROS
  20
  21 #include "config.h"
  22 #include <stdarg.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "objbase.h"
  27 #include "wbemcli.h"
  28
  29 #include "wine/debug.h"
  30 #include "wbemprox_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
  33
  34 struct enum_class_object
  35 {
  36     IEnumWbemClassObject IEnumWbemClassObject_iface;
  37     LONG refs;
  38     struct query *query;
  39     UINT index;
  40 };
  41
  42 static inline struct enum_class_object *impl_from_IEnumWbemClassObject(
  43     IEnumWbemClassObject *iface )
  44 {
  45     return CONTAINING_RECORD(iface, struct enum_class_object, IEnumWbemClassObject_iface);
  46 }
  47
  48 static ULONG WINAPI enum_class_object_AddRef(
  49     IEnumWbemClassObject *iface )
  50 {
  51     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
  52     return InterlockedIncrement( &ec->refs );
  53 }
  54
  55 static ULONG WINAPI enum_class_object_Release(
  56     IEnumWbemClassObject *iface )
  57 {
  58     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
  59     LONG refs = InterlockedDecrement( &ec->refs );
  60     if (!refs)
  61     {
  62         TRACE("destroying %p\n", ec);
  63         release_query( ec->query );
  64         heap_free( ec );
  65     }
  66     return refs;
  67 }
  68
  69 static HRESULT WINAPI enum_class_object_QueryInterface(
  70     IEnumWbemClassObject *iface,
  71     REFIID riid,
  72     void **ppvObject )
  73 {
  74     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
  75
  76     TRACE("%p, %s, %p\n", ec, debugstr_guid( riid ), ppvObject );
  77
  78     if ( IsEqualGUID( riid, &IID_IEnumWbemClassObject ) ||
  79          IsEqualGUID( riid, &IID_IUnknown ) )
  80     {
  81         *ppvObject = ec;
  82     }
  83     else if ( IsEqualGUID( riid, &IID_IClientSecurity ) )
  84     {
  85         *ppvObject = &client_security;
  86         return S_OK;
  87     }
  88     else
  89     {
  90         FIXME("interface %s not implemented\n", debugstr_guid(riid));
  91         return E_NOINTERFACE;
  92     }
  93     IEnumWbemClassObject_AddRef( iface );
  94     return S_OK;
  95 }
  96
  97 static HRESULT WINAPI enum_class_object_Reset(
  98     IEnumWbemClassObject *iface )
  99 {
 100     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 101
 102     TRACE("%p\n", iface);
 103
 104     ec->index = 0;
 105     return WBEM_S_NO_ERROR;
 106 }
 107
 108 static HRESULT WINAPI enum_class_object_Next(
 109     IEnumWbemClassObject *iface,
 110     LONG lTimeout,
 111     ULONG uCount,
 112     IWbemClassObject **apObjects,
 113     ULONG *puReturned )
 114 {
 115     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 116     struct view *view = ec->query->view;
 117     HRESULT hr;
 118
 119     TRACE("%p, %d, %u, %p, %p\n", iface, lTimeout, uCount, apObjects, puReturned);
 120
 121     if (!uCount) return WBEM_S_FALSE;
 122     if (!apObjects || !puReturned) return WBEM_E_INVALID_PARAMETER;
 123     if (lTimeout != WBEM_INFINITE) FIXME("timeout not supported\n");
 124
 125     *puReturned = 0;
 126     if (ec->index >= view->count) return WBEM_S_FALSE;
 127
 128     hr = create_class_object( view->table->name, iface, ec->index, NULL, apObjects );
 129     if (hr != S_OK) return hr;
 130
 131     ec->index++;
 132     *puReturned = 1;
 133     if (ec->index == view->count && uCount > 1) return WBEM_S_FALSE;
 134     if (uCount > 1) return WBEM_S_TIMEDOUT;
 135     return WBEM_S_NO_ERROR;
 136 }
 137
 138 static HRESULT WINAPI enum_class_object_NextAsync(
 139     IEnumWbemClassObject *iface,
 140     ULONG uCount,
 141     IWbemObjectSink *pSink )
 142 {
 143     FIXME("%p, %u, %p\n", iface, uCount, pSink);
 144     return E_NOTIMPL;
 145 }
 146
 147 static HRESULT WINAPI enum_class_object_Clone(
 148     IEnumWbemClassObject *iface,
 149     IEnumWbemClassObject **ppEnum )
 150 {
 151     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 152
 153     TRACE("%p, %p\n", iface, ppEnum);
 154
 155     return EnumWbemClassObject_create( ec->query, (void **)ppEnum );
 156 }
 157
 158 static HRESULT WINAPI enum_class_object_Skip(
 159     IEnumWbemClassObject *iface,
 160     LONG lTimeout,
 161     ULONG nCount )
 162 {
 163     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 164     struct view *view = ec->query->view;
 165
 166     TRACE("%p, %d, %u\n", iface, lTimeout, nCount);
 167
 168     if (lTimeout != WBEM_INFINITE) FIXME("timeout not supported\n");
 169
 170     if (!view->count) return WBEM_S_FALSE;
 171
 172     if (nCount > view->count - ec->index)
 173     {
 174         ec->index = view->count - 1;
 175         return WBEM_S_FALSE;
 176     }
 177     ec->index += nCount;
 178     return WBEM_S_NO_ERROR;
 179 }
 180
 181 static const IEnumWbemClassObjectVtbl enum_class_object_vtbl =
 182 {
 183     enum_class_object_QueryInterface,
 184     enum_class_object_AddRef,
 185     enum_class_object_Release,
 186     enum_class_object_Reset,
 187     enum_class_object_Next,
 188     enum_class_object_NextAsync,
 189     enum_class_object_Clone,
 190     enum_class_object_Skip
 191 };
 192
 193 HRESULT EnumWbemClassObject_create( struct query *query, LPVOID *ppObj )
 194 {
 195     struct enum_class_object *ec;
 196
 197     TRACE("%p\n", ppObj);
 198
 199     ec = heap_alloc( sizeof(*ec) );
 200     if (!ec) return E_OUTOFMEMORY;
 201
 202     ec->IEnumWbemClassObject_iface.lpVtbl = &enum_class_object_vtbl;
 203     ec->refs  = 1;
 204     ec->query = addref_query( query );
 205     ec->index = 0;
 206
 207     *ppObj = &ec->IEnumWbemClassObject_iface;
 208
 209     TRACE("returning iface %p\n", *ppObj);
 210     return S_OK;
 211 }
 212
 213 static struct record *create_record( struct table *table )
 214 {
 215     UINT i;
 216     struct record *record;
 217
 218     if (!(record = heap_alloc( sizeof(struct record) ))) return NULL;
 219     if (!(record->fields = heap_alloc( table->num_cols * sizeof(struct field) )))
 220     {
 221         heap_free( record );
 222         return NULL;
 223     }
 224     for (i = 0; i < table->num_cols; i++)
 225     {
 226         record->fields[i].type    = table->columns[i].type;
 227         record->fields[i].vartype = table->columns[i].vartype;
 228         record->fields[i].u.ival  = 0;
 229     }
 230     record->count = table->num_cols;
 231     record->table = addref_table( table );
 232     return record;
 233 }
 234
 235 void destroy_array( struct array *array, CIMTYPE type )
 236 {
 237     UINT i, size;
 238
 239     if (!array) return;
 240     if (type == CIM_STRING || type == CIM_DATETIME)
 241     {
 242         size = get_type_size( type );
 243         for (i = 0; i < array->count; i++) heap_free( *(WCHAR **)((char *)array->ptr + i * size) );
 244     }
 245     heap_free( array->ptr );
 246     heap_free( array );
 247 }
 248
 249 static void destroy_record( struct record *record )
 250 {
 251     UINT i;
 252
 253     if (!record) return;
 254     release_table( record->table );
 255     for (i = 0; i < record->count; i++)
 256     {
 257         if (record->fields[i].type == CIM_STRING || record->fields[i].type == CIM_DATETIME)
 258             heap_free( record->fields[i].u.sval );
 259         else if (record->fields[i].type & CIM_FLAG_ARRAY)
 260             destroy_array( record->fields[i].u.aval, record->fields[i].type & CIM_TYPE_MASK );
 261     }
 262     heap_free( record->fields );
 263     heap_free( record );
 264 }
 265
 266 struct class_object
 267 {
 268     IWbemClassObject IWbemClassObject_iface;
 269     LONG refs;
 270     WCHAR *name;
 271     IEnumWbemClassObject *iter;
 272     UINT index;
 273     UINT index_method;
 274     UINT index_property;
 275     struct record *record; /* uncommitted instance */
 276 };
 277
 278 static inline struct class_object *impl_from_IWbemClassObject(
 279     IWbemClassObject *iface )
 280 {
 281     return CONTAINING_RECORD(iface, struct class_object, IWbemClassObject_iface);
 282 }
 283
 284 static ULONG WINAPI class_object_AddRef(
 285     IWbemClassObject *iface )
 286 {
 287     struct class_object *co = impl_from_IWbemClassObject( iface );
 288     return InterlockedIncrement( &co->refs );
 289 }
 290
 291 static ULONG WINAPI class_object_Release(
 292     IWbemClassObject *iface )
 293 {
 294     struct class_object *co = impl_from_IWbemClassObject( iface );
 295     LONG refs = InterlockedDecrement( &co->refs );
 296     if (!refs)
 297     {
 298         TRACE("destroying %p\n", co);
 299         if (co->iter) IEnumWbemClassObject_Release( co->iter );
 300         destroy_record( co->record );
 301         heap_free( co->name );
 302         heap_free( co );
 303     }
 304     return refs;
 305 }
 306
 307 static HRESULT WINAPI class_object_QueryInterface(
 308     IWbemClassObject *iface,
 309     REFIID riid,
 310     void **ppvObject )
 311 {
 312     struct class_object *co = impl_from_IWbemClassObject( iface );
 313
 314     TRACE("%p, %s, %p\n", co, debugstr_guid( riid ), ppvObject );
 315
 316     if ( IsEqualGUID( riid, &IID_IWbemClassObject ) ||
 317          IsEqualGUID( riid, &IID_IUnknown ) )
 318     {
 319         *ppvObject = co;
 320     }
 321     else if (IsEqualGUID( riid, &IID_IClientSecurity ))
 322     {
 323         *ppvObject = &client_security;
 324         return S_OK;
 325     }
 326     else
 327     {
 328         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 329         return E_NOINTERFACE;
 330     }
 331     IWbemClassObject_AddRef( iface );
 332     return S_OK;
 333 }
 334
 335 static HRESULT WINAPI class_object_GetQualifierSet(
 336     IWbemClassObject *iface,
 337     IWbemQualifierSet **ppQualSet )
 338 {
 339     FIXME("%p, %p\n", iface, ppQualSet);
 340     return E_NOTIMPL;
 341 }
 342
 343 static HRESULT record_get_value( const struct record *record, UINT index, VARIANT *var, CIMTYPE *type )
 344 {
 345     VARTYPE vartype = record->fields[index].vartype;
 346
 347     if (type) *type = record->fields[index].type;
 348
 349     if (record->fields[index].type & CIM_FLAG_ARRAY)
 350     {
 351         V_VT( var ) = vartype ? vartype : to_vartype( record->fields[index].type & CIM_TYPE_MASK ) | VT_ARRAY;
 352         V_ARRAY( var ) = to_safearray( record->fields[index].u.aval, record->fields[index].type & CIM_TYPE_MASK );
 353         return S_OK;
 354     }
 355     switch (record->fields[index].type)
 356     {
 357     case CIM_STRING:
 358     case CIM_DATETIME:
 359         if (!vartype) vartype = VT_BSTR;
 360         V_BSTR( var ) = SysAllocString( record->fields[index].u.sval );
 361         break;
 362     case CIM_SINT32:
 363         if (!vartype) vartype = VT_I4;
 364         V_I4( var ) = record->fields[index].u.ival;
 365         break;
 366     case CIM_UINT32:
 367         if (!vartype) vartype = VT_UI4;
 368         V_UI4( var ) = record->fields[index].u.ival;
 369         break;
 370     default:
 371         FIXME("unhandled type %u\n", record->fields[index].type);
 372         return WBEM_E_INVALID_PARAMETER;
 373     }
 374     V_VT( var ) = vartype;
 375     return S_OK;
 376 }
 377
 378 static HRESULT WINAPI class_object_Get(
 379     IWbemClassObject *iface,
 380     LPCWSTR wszName,
 381     LONG lFlags,
 382     VARIANT *pVal,
 383     CIMTYPE *pType,
 384     LONG *plFlavor )
 385 {
 386     struct class_object *co = impl_from_IWbemClassObject( iface );
 387     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 388
 389     TRACE("%p, %s, %08x, %p, %p, %p\n", iface, debugstr_w(wszName), lFlags, pVal, pType, plFlavor);
 390
 391     if (co->record)
 392     {
 393         UINT index;
 394         HRESULT hr;
 395
 396         if ((hr = get_column_index( co->record->table, wszName, &index )) != S_OK) return hr;
 397         return record_get_value( co->record, index, pVal, pType );
 398     }
 399     return get_propval( ec->query->view, co->index, wszName, pVal, pType, plFlavor );
 400 }
 401
 402 static HRESULT record_set_value( struct record *record, UINT index, VARIANT *var )
 403 {
 404     LONGLONG val;
 405     CIMTYPE type;
 406     HRESULT hr;
 407
 408     if ((hr = to_longlong( var, &val, &type )) != S_OK) return hr;
 409     if (type != record->fields[index].type) return WBEM_E_TYPE_MISMATCH;
 410
 411     if (type & CIM_FLAG_ARRAY)
 412     {
 413         record->fields[index].u.aval = (struct array *)(INT_PTR)val;
 414         return S_OK;
 415     }
 416     switch (type)
 417     {
 418     case CIM_STRING:
 419     case CIM_DATETIME:
 420         record->fields[index].u.sval = (WCHAR *)(INT_PTR)val;
 421         return S_OK;
 422     case CIM_SINT16:
 423     case CIM_UINT16:
 424     case CIM_SINT32:
 425     case CIM_UINT32:
 426         record->fields[index].u.ival = val;
 427         return S_OK;
 428     default:
 429         FIXME("unhandled type %u\n", type);
 430         break;
 431     }
 432     return WBEM_E_INVALID_PARAMETER;
 433 }
 434
 435 static HRESULT WINAPI class_object_Put(
 436     IWbemClassObject *iface,
 437     LPCWSTR wszName,
 438     LONG lFlags,
 439     VARIANT *pVal,
 440     CIMTYPE Type )
 441 {
 442     struct class_object *co = impl_from_IWbemClassObject( iface );
 443     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 444
 445     TRACE("%p, %s, %08x, %p, %u\n", iface, debugstr_w(wszName), lFlags, pVal, Type);
 446
 447     if (co->record)
 448     {
 449         UINT index;
 450         HRESULT hr;
 451
 452         if ((hr = get_column_index( co->record->table, wszName, &index )) != S_OK) return hr;
 453         return record_set_value( co->record, index, pVal );
 454     }
 455     return put_propval( ec->query->view, co->index, wszName, pVal, Type );
 456 }
 457
 458 static HRESULT WINAPI class_object_Delete(
 459     IWbemClassObject *iface,
 460     LPCWSTR wszName )
 461 {
 462     FIXME("%p, %s\n", iface, debugstr_w(wszName));
 463     return E_NOTIMPL;
 464 }
 465
 466 static HRESULT WINAPI class_object_GetNames(
 467     IWbemClassObject *iface,
 468     LPCWSTR wszQualifierName,
 469     LONG lFlags,
 470     VARIANT *pQualifierVal,
 471     SAFEARRAY **pNames )
 472 {
 473     struct class_object *co = impl_from_IWbemClassObject( iface );
 474     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 475
 476     TRACE("%p, %s, %08x, %s, %p\n", iface, debugstr_w(wszQualifierName), lFlags,
 477           debugstr_variant(pQualifierVal), pNames);
 478
 479     if (lFlags != WBEM_FLAG_ALWAYS &&
 480         lFlags != WBEM_FLAG_NONSYSTEM_ONLY &&
 481         lFlags != WBEM_FLAG_SYSTEM_ONLY)
 482     {
 483         FIXME("flags %08x not supported\n", lFlags);
 484         return E_NOTIMPL;
 485     }
 486     if (wszQualifierName || pQualifierVal)
 487         FIXME("qualifier not supported\n");
 488
 489     return get_properties( ec->query->view, lFlags, pNames );
 490 }
 491
 492 static HRESULT WINAPI class_object_BeginEnumeration(
 493     IWbemClassObject *iface,
 494     LONG lEnumFlags )
 495 {
 496     struct class_object *co = impl_from_IWbemClassObject( iface );
 497
 498     TRACE("%p, %08x\n", iface, lEnumFlags);
 499
 500     if (lEnumFlags) FIXME("flags 0x%08x not supported\n", lEnumFlags);
 501
 502     co->index_property = 0;
 503     return S_OK;
 504 }
 505
 506 static HRESULT WINAPI class_object_Next(
 507     IWbemClassObject *iface,
 508     LONG lFlags,
 509     BSTR *strName,
 510     VARIANT *pVal,
 511     CIMTYPE *pType,
 512     LONG *plFlavor )
 513 {
 514     struct class_object *co = impl_from_IWbemClassObject( iface );
 515     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 516     struct view *view = ec->query->view;
 517     BSTR property;
 518     HRESULT hr;
 519
 520     TRACE("%p, %08x, %p, %p, %p, %p\n", iface, lFlags, strName, pVal, pType, plFlavor);
 521
 522     if (!(property = get_property_name( co->name, co->index_property ))) return WBEM_S_NO_MORE_DATA;
 523     if ((hr = get_propval( view, co->index, property, pVal, pType, plFlavor ) != S_OK))
 524     {
 525         SysFreeString( property );
 526         return hr;
 527     }
 528     *strName = property;
 529     co->index_property++;
 530     return S_OK;
 531 }
 532
 533 static HRESULT WINAPI class_object_EndEnumeration(
 534     IWbemClassObject *iface )
 535 {
 536     struct class_object *co = impl_from_IWbemClassObject( iface );
 537
 538     TRACE("%p\n", iface);
 539
 540     co->index_property = 0;
 541     return S_OK;
 542 }
 543
 544 static HRESULT WINAPI class_object_GetPropertyQualifierSet(
 545     IWbemClassObject *iface,
 546     LPCWSTR wszProperty,
 547     IWbemQualifierSet **ppQualSet )
 548 {
 549     struct class_object *co = impl_from_IWbemClassObject( iface );
 550
 551     TRACE("%p, %s, %p\n", iface, debugstr_w(wszProperty), ppQualSet);
 552
 553     return WbemQualifierSet_create( co->name, wszProperty, (void **)ppQualSet );
 554 }
 555
 556 static HRESULT WINAPI class_object_Clone(
 557     IWbemClassObject *iface,
 558     IWbemClassObject **ppCopy )
 559 {
 560     FIXME("%p, %p\n", iface, ppCopy);
 561     return E_NOTIMPL;
 562 }
 563
 564 static BSTR get_body_text( const struct table *table, UINT row, UINT *len )
 565 {
 566     static const WCHAR fmtW[] = {'\n','\t','%','s',' ','=',' ','%','s',';',0};
 567     BSTR value, ret;
 568     WCHAR *p;
 569     UINT i;
 570
 571     *len = 0;
 572     for (i = 0; i < table->num_cols; i++)
 573     {
 574         if ((value = get_value_bstr( table, row, i )))
 575         {
 576             *len += sizeof(fmtW) / sizeof(fmtW[0]);
 577             *len += strlenW( table->columns[i].name );
 578             *len += SysStringLen( value );
 579             SysFreeString( value );
 580         }
 581     }
 582     if (!(ret = SysAllocStringLen( NULL, *len ))) return NULL;
 583     p = ret;
 584     for (i = 0; i < table->num_cols; i++)
 585     {
 586         if ((value = get_value_bstr( table, row, i )))
 587         {
 588             p += sprintfW( p, fmtW, table->columns[i].name, value );
 589             SysFreeString( value );
 590         }
 591     }
 592     return ret;
 593 }
 594
 595 static BSTR get_object_text( const struct view *view, UINT index )
 596 {
 597     static const WCHAR fmtW[] =
 598         {'\n','i','n','s','t','a','n','c','e',' ','o','f',' ','%','s','\n','{','%','s','\n','}',';',0};
 599     UINT len, len_body, row = view->result[index];
 600     BSTR ret, body;
 601
 602     len = sizeof(fmtW) / sizeof(fmtW[0]);
 603     len += strlenW( view->table->name );
 604     if (!(body = get_body_text( view->table, row, &len_body ))) return NULL;
 605     len += len_body;
 606
 607     if (!(ret = SysAllocStringLen( NULL, len ))) return NULL;
 608     sprintfW( ret, fmtW, view->table->name, body );
 609     SysFreeString( body );
 610     return ret;
 611 }
 612
 613 static HRESULT WINAPI class_object_GetObjectText(
 614     IWbemClassObject *iface,
 615     LONG lFlags,
 616     BSTR *pstrObjectText )
 617 {
 618     struct class_object *co = impl_from_IWbemClassObject( iface );
 619     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 620     struct view *view = ec->query->view;
 621     BSTR text;
 622
 623     TRACE("%p, %08x, %p\n", iface, lFlags, pstrObjectText);
 624
 625     if (lFlags) FIXME("flags %08x not implemented\n", lFlags);
 626
 627     if (!(text = get_object_text( view, co->index ))) return E_OUTOFMEMORY;
 628     *pstrObjectText = text;
 629     return S_OK;
 630 }
 631
 632 static HRESULT WINAPI class_object_SpawnDerivedClass(
 633     IWbemClassObject *iface,
 634     LONG lFlags,
 635     IWbemClassObject **ppNewClass )
 636 {
 637     FIXME("%p, %08x, %p\n", iface, lFlags, ppNewClass);
 638     return E_NOTIMPL;
 639 }
 640
 641 static HRESULT WINAPI class_object_SpawnInstance(
 642     IWbemClassObject *iface,
 643     LONG lFlags,
 644     IWbemClassObject **ppNewInstance )
 645 {
 646     struct class_object *co = impl_from_IWbemClassObject( iface );
 647     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 648     struct view *view = ec->query->view;
 649     struct record *record;
 650
 651     TRACE("%p, %08x, %p\n", iface, lFlags, ppNewInstance);
 652
 653     if (!(record = create_record( view->table ))) return E_OUTOFMEMORY;
 654
 655     return create_class_object( co->name, NULL, 0, record, ppNewInstance );
 656 }
 657
 658 static HRESULT WINAPI class_object_CompareTo(
 659     IWbemClassObject *iface,
 660     LONG lFlags,
 661     IWbemClassObject *pCompareTo )
 662 {
 663     FIXME("%p, %08x, %p\n", iface, lFlags, pCompareTo);
 664     return E_NOTIMPL;
 665 }
 666
 667 static HRESULT WINAPI class_object_GetPropertyOrigin(
 668     IWbemClassObject *iface,
 669     LPCWSTR wszName,
 670     BSTR *pstrClassName )
 671 {
 672     FIXME("%p, %s, %p\n", iface, debugstr_w(wszName), pstrClassName);
 673     return E_NOTIMPL;
 674 }
 675
 676 static HRESULT WINAPI class_object_InheritsFrom(
 677     IWbemClassObject *iface,
 678     LPCWSTR strAncestor )
 679 {
 680     FIXME("%p, %s\n", iface, debugstr_w(strAncestor));
 681     return E_NOTIMPL;
 682 }
 683
 684 static UINT count_instances( IEnumWbemClassObject *iter )
 685 {
 686     UINT count = 0;
 687     while (!IEnumWbemClassObject_Skip( iter, WBEM_INFINITE, 1 )) count++;
 688     IEnumWbemClassObject_Reset( iter );
 689     return count;
 690 }
 691
 692 static void set_default_value( CIMTYPE type, UINT val, BYTE *ptr )
 693 {
 694     switch (type)
 695     {
 696     case CIM_SINT16:
 697         *(INT16 *)ptr = val;
 698         break;
 699     case CIM_UINT16:
 700         *(UINT16 *)ptr = val;
 701         break;
 702     case CIM_SINT32:
 703         *(INT32 *)ptr = val;
 704         break;
 705     case CIM_UINT32:
 706         *(UINT32 *)ptr = val;
 707         break;
 708     default:
 709         FIXME("unhandled type %u\n", type);
 710         break;
 711     }
 712 }
 713
 714 static HRESULT create_signature_columns_and_data( IEnumWbemClassObject *iter, UINT *num_cols,
 715                                            struct column **cols, BYTE **data )
 716 {
 717     static const WCHAR parameterW[] = {'P','a','r','a','m','e','t','e','r',0};
 718     static const WCHAR typeW[] = {'T','y','p','e',0};
 719     static const WCHAR varianttypeW[] = {'V','a','r','i','a','n','t','T','y','p','e',0};
 720     static const WCHAR defaultvalueW[] = {'D','e','f','a','u','l','t','V','a','l','u','e',0};
 721     struct column *columns;
 722     BYTE *row;
 723     IWbemClassObject *param;
 724     VARIANT val;
 725     HRESULT hr = E_OUTOFMEMORY;
 726     UINT offset = 0;
 727     ULONG count;
 728     int i = 0;
 729
 730     count = count_instances( iter );
 731     if (!(columns = heap_alloc( count * sizeof(struct column) ))) return E_OUTOFMEMORY;
 732     if (!(row = heap_alloc_zero( count * sizeof(LONGLONG) ))) goto error;
 733
 734     for (;;)
 735     {
 736         IEnumWbemClassObject_Next( iter, WBEM_INFINITE, 1, &param, &count );
 737         if (!count) break;
 738
 739         hr = IWbemClassObject_Get( param, parameterW, 0, &val, NULL, NULL );
 740         if (hr != S_OK) goto error;
 741         columns[i].name = heap_strdupW( V_BSTR( &val ) );
 742         VariantClear( &val );
 743
 744         hr = IWbemClassObject_Get( param, typeW, 0, &val, NULL, NULL );
 745         if (hr != S_OK) goto error;
 746         columns[i].type = V_UI4( &val );
 747
 748         hr = IWbemClassObject_Get( param, varianttypeW, 0, &val, NULL, NULL );
 749         if (hr != S_OK) goto error;
 750         columns[i].vartype = V_UI4( &val );
 751
 752         hr = IWbemClassObject_Get( param, defaultvalueW, 0, &val, NULL, NULL );
 753         if (hr != S_OK) goto error;
 754         if (V_UI4( &val )) set_default_value( columns[i].type, V_UI4( &val ), row + offset );
 755         offset += get_type_size( columns[i].type );
 756
 757         IWbemClassObject_Release( param );
 758         i++;
 759     }
 760     *num_cols = i;
 761     *cols = columns;
 762     *data = row;
 763     return S_OK;
 764
 765 error:
 766     for (; i >= 0; i--) heap_free( (WCHAR *)columns[i].name );
 767     heap_free( columns );
 768     heap_free( row );
 769     return hr;
 770 }
 771
 772 static HRESULT create_signature_table( IEnumWbemClassObject *iter, WCHAR *name )
 773 {
 774     HRESULT hr;
 775     struct table *table;
 776     struct column *columns;
 777     UINT num_cols;
 778     BYTE *row;
 779
 780     hr = create_signature_columns_and_data( iter, &num_cols, &columns, &row );
 781     if (hr != S_OK) return hr;
 782
 783     if (!(table = create_table( name, num_cols, columns, 1, 1, row, NULL )))
 784     {
 785         free_columns( columns, num_cols );
 786         heap_free( row );
 787         return E_OUTOFMEMORY;
 788     }
 789     if (!add_table( table )) free_table( table ); /* already exists */
 790     return S_OK;
 791 }
 792
 793 static WCHAR *build_signature_table_name( const WCHAR *class, const WCHAR *method, enum param_direction dir )
 794 {
 795     static const WCHAR fmtW[] = {'_','_','%','s','_','%','s','_','%','s',0};
 796     static const WCHAR outW[] = {'O','U','T',0};
 797     static const WCHAR inW[] = {'I','N',0};
 798     UINT len = SIZEOF(fmtW) + SIZEOF(outW) + strlenW( class ) + strlenW( method );
 799     WCHAR *ret;
 800
 801     if (!(ret = heap_alloc( len * sizeof(WCHAR) ))) return NULL;
 802     sprintfW( ret, fmtW, class, method, dir == PARAM_IN ? inW : outW );
 803     return struprW( ret );
 804 }
 805
 806 HRESULT create_signature( const WCHAR *class, const WCHAR *method, enum param_direction dir,
 807                           IWbemClassObject **sig )
 808 {
 809     static const WCHAR selectW[] =
 810         {'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 811          '_','_','P','A','R','A','M','E','T','E','R','S',' ','W','H','E','R','E',' ',
 812          'C','l','a','s','s','=','\'','%','s','\'',' ','A','N','D',' ',
 813          'M','e','t','h','o','d','=','\'','%','s','\'',' ','A','N','D',' ',
 814          'D','i','r','e','c','t','i','o','n','%','s',0};
 815     static const WCHAR geW[] = {'>','=','0',0};
 816     static const WCHAR leW[] = {'<','=','0',0};
 817     UINT len = SIZEOF(selectW) + SIZEOF(geW);
 818     IEnumWbemClassObject *iter;
 819     WCHAR *query, *name;
 820     HRESULT hr;
 821
 822     len += strlenW( class ) + strlenW( method );
 823     if (!(query = heap_alloc( len * sizeof(WCHAR) ))) return E_OUTOFMEMORY;
 824     sprintfW( query, selectW, class, method, dir >= 0 ? geW : leW );
 825
 826     hr = exec_query( query, &iter );
 827     heap_free( query );
 828     if (hr != S_OK) return hr;
 829
 830     if (!(name = build_signature_table_name( class, method, dir )))
 831     {
 832         IEnumWbemClassObject_Release( iter );
 833         return E_OUTOFMEMORY;
 834     }
 835     hr = create_signature_table( iter, name );
 836     IEnumWbemClassObject_Release( iter );
 837     if (hr == S_OK)
 838         hr = get_object( name, sig );
 839
 840     heap_free( name );
 841     return hr;
 842 }
 843
 844 static HRESULT WINAPI class_object_GetMethod(
 845     IWbemClassObject *iface,
 846     LPCWSTR wszName,
 847     LONG lFlags,
 848     IWbemClassObject **ppInSignature,
 849     IWbemClassObject **ppOutSignature )
 850 {
 851     struct class_object *co = impl_from_IWbemClassObject( iface );
 852     IWbemClassObject *in, *out;
 853     HRESULT hr;
 854
 855     TRACE("%p, %s, %08x, %p, %p\n", iface, debugstr_w(wszName), lFlags, ppInSignature, ppOutSignature);
 856
 857     hr = create_signature( co->name, wszName, PARAM_IN, &in );
 858     if (hr != S_OK) return hr;
 859
 860     hr = create_signature( co->name, wszName, PARAM_OUT, &out );
 861     if (hr == S_OK)
 862     {
 863         if (ppInSignature) *ppInSignature = in;
 864         else IWbemClassObject_Release( in );
 865         if (ppOutSignature) *ppOutSignature = out;
 866         else IWbemClassObject_Release( out );
 867     }
 868     else IWbemClassObject_Release( in );
 869     return hr;
 870 }
 871
 872 static HRESULT WINAPI class_object_PutMethod(
 873     IWbemClassObject *iface,
 874     LPCWSTR wszName,
 875     LONG lFlags,
 876     IWbemClassObject *pInSignature,
 877     IWbemClassObject *pOutSignature )
 878 {
 879     FIXME("%p, %s, %08x, %p, %p\n", iface, debugstr_w(wszName), lFlags, pInSignature, pOutSignature);
 880     return E_NOTIMPL;
 881 }
 882
 883 static HRESULT WINAPI class_object_DeleteMethod(
 884     IWbemClassObject *iface,
 885     LPCWSTR wszName )
 886 {
 887     FIXME("%p, %s\n", iface, debugstr_w(wszName));
 888     return E_NOTIMPL;
 889 }
 890
 891 static HRESULT WINAPI class_object_BeginMethodEnumeration(
 892     IWbemClassObject *iface,
 893     LONG lEnumFlags)
 894 {
 895     struct class_object *co = impl_from_IWbemClassObject( iface );
 896
 897     TRACE("%p, %08x\n", iface, lEnumFlags);
 898
 899     if (lEnumFlags) FIXME("flags 0x%08x not supported\n", lEnumFlags);
 900
 901     if (co->iter)
 902     {
 903         WARN("not allowed on instance\n");
 904         return WBEM_E_ILLEGAL_OPERATION;
 905     }
 906     co->index_method = 0;
 907     return S_OK;
 908 }
 909
 910 static HRESULT WINAPI class_object_NextMethod(
 911     IWbemClassObject *iface,
 912     LONG lFlags,
 913     BSTR *pstrName,
 914     IWbemClassObject **ppInSignature,
 915     IWbemClassObject **ppOutSignature)
 916 {
 917     struct class_object *co = impl_from_IWbemClassObject( iface );
 918     BSTR method;
 919     HRESULT hr;
 920
 921     TRACE("%p, %08x, %p, %p, %p\n", iface, lFlags, pstrName, ppInSignature, ppOutSignature);
 922
 923     if (!(method = get_method_name( co->name, co->index_method ))) return WBEM_S_NO_MORE_DATA;
 924
 925     hr = create_signature( co->name, method, PARAM_IN, ppInSignature );
 926     if (hr != S_OK)
 927     {
 928         SysFreeString( method );
 929         return hr;
 930     }
 931     hr = create_signature( co->name, method, PARAM_OUT, ppOutSignature );
 932     if (hr != S_OK)
 933     {
 934         SysFreeString( method );
 935         IWbemClassObject_Release( *ppInSignature );
 936     }
 937     else
 938     {
 939         *pstrName = method;
 940         co->index_method++;
 941     }
 942     return hr;
 943 }
 944
 945 static HRESULT WINAPI class_object_EndMethodEnumeration(
 946     IWbemClassObject *iface )
 947 {
 948     struct class_object *co = impl_from_IWbemClassObject( iface );
 949
 950     TRACE("%p\n", iface);
 951
 952     co->index_method = 0;
 953     return S_OK;
 954 }
 955
 956 static HRESULT WINAPI class_object_GetMethodQualifierSet(
 957     IWbemClassObject *iface,
 958     LPCWSTR wszMethod,
 959     IWbemQualifierSet **ppQualSet)
 960 {
 961     FIXME("%p, %s, %p\n", iface, debugstr_w(wszMethod), ppQualSet);
 962     return E_NOTIMPL;
 963 }
 964
 965 static HRESULT WINAPI class_object_GetMethodOrigin(
 966     IWbemClassObject *iface,
 967     LPCWSTR wszMethodName,
 968     BSTR *pstrClassName)
 969 {
 970     FIXME("%p, %s, %p\n", iface, debugstr_w(wszMethodName), pstrClassName);
 971     return E_NOTIMPL;
 972 }
 973
 974 static const IWbemClassObjectVtbl class_object_vtbl =
 975 {
 976     class_object_QueryInterface,
 977     class_object_AddRef,
 978     class_object_Release,
 979     class_object_GetQualifierSet,
 980     class_object_Get,
 981     class_object_Put,
 982     class_object_Delete,
 983     class_object_GetNames,
 984     class_object_BeginEnumeration,
 985     class_object_Next,
 986     class_object_EndEnumeration,
 987     class_object_GetPropertyQualifierSet,
 988     class_object_Clone,
 989     class_object_GetObjectText,
 990     class_object_SpawnDerivedClass,
 991     class_object_SpawnInstance,
 992     class_object_CompareTo,
 993     class_object_GetPropertyOrigin,
 994     class_object_InheritsFrom,
 995     class_object_GetMethod,
 996     class_object_PutMethod,
 997     class_object_DeleteMethod,
 998     class_object_BeginMethodEnumeration,
 999     class_object_NextMethod,
1000     class_object_EndMethodEnumeration,
1001     class_object_GetMethodQualifierSet,
1002     class_object_GetMethodOrigin
1003 };
1004
1005 HRESULT create_class_object( const WCHAR *name, IEnumWbemClassObject *iter, UINT index,
1006                              struct record *record, IWbemClassObject **obj )
1007 {
1008     struct class_object *co;
1009
1010     TRACE("%s, %p\n", debugstr_w(name), obj);
1011
1012     co = heap_alloc( sizeof(*co) );
1013     if (!co) return E_OUTOFMEMORY;
1014
1015     co->IWbemClassObject_iface.lpVtbl = &class_object_vtbl;
1016     co->refs  = 1;
1017     if (!name) co->name = NULL;
1018     else if (!(co->name = heap_strdupW( name )))
1019     {
1020         heap_free( co );
1021         return E_OUTOFMEMORY;
1022     }
1023     co->iter           = iter;
1024     co->index          = index;
1025     co->index_method   = 0;
1026     co->index_property = 0;
1027     co->record         = record;
1028     if (iter) IEnumWbemClassObject_AddRef( iter );
1029
1030     *obj = &co->IWbemClassObject_iface;
1031
1032     TRACE("returning iface %p\n", *obj);
1033     return S_OK;
1034 }