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 <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "objbase.h"
  26 #include "wbemcli.h"
  27
  28 #include "wine/debug.h"
  29 #include "wbemprox_private.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
  32
  33 struct enum_class_object
  34 {
  35     IEnumWbemClassObject IEnumWbemClassObject_iface;
  36     LONG refs;
  37     struct query *query;
  38     UINT index;
  39 };
  40
  41 static inline struct enum_class_object *impl_from_IEnumWbemClassObject(
  42     IEnumWbemClassObject *iface )
  43 {
  44     return CONTAINING_RECORD(iface, struct enum_class_object, IEnumWbemClassObject_iface);
  45 }
  46
  47 static ULONG WINAPI enum_class_object_AddRef(
  48     IEnumWbemClassObject *iface )
  49 {
  50     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
  51     return InterlockedIncrement( &ec->refs );
  52 }
  53
  54 static ULONG WINAPI enum_class_object_Release(
  55     IEnumWbemClassObject *iface )
  56 {
  57     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
  58     LONG refs = InterlockedDecrement( &ec->refs );
  59     if (!refs)
  60     {
  61         TRACE("destroying %p\n", ec);
  62         release_query( ec->query );
  63         heap_free( ec );
  64     }
  65     return refs;
  66 }
  67
  68 static HRESULT WINAPI enum_class_object_QueryInterface(
  69     IEnumWbemClassObject *iface,
  70     REFIID riid,
  71     void **ppvObject )
  72 {
  73     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
  74
  75     TRACE("%p, %s, %p\n", ec, debugstr_guid( riid ), ppvObject );
  76
  77     if ( IsEqualGUID( riid, &IID_IEnumWbemClassObject ) ||
  78          IsEqualGUID( riid, &IID_IUnknown ) )
  79     {
  80         *ppvObject = ec;
  81     }
  82     else if ( IsEqualGUID( riid, &IID_IClientSecurity ) )
  83     {
  84         *ppvObject = &client_security;
  85         return S_OK;
  86     }
  87     else
  88     {
  89         FIXME("interface %s not implemented\n", debugstr_guid(riid));
  90         return E_NOINTERFACE;
  91     }
  92     IEnumWbemClassObject_AddRef( iface );
  93     return S_OK;
  94 }
  95
  96 static HRESULT WINAPI enum_class_object_Reset(
  97     IEnumWbemClassObject *iface )
  98 {
  99     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 100
 101     TRACE("%p\n", iface);
 102
 103     ec->index = 0;
 104     return WBEM_S_NO_ERROR;
 105 }
 106
 107 static HRESULT WINAPI enum_class_object_Next(
 108     IEnumWbemClassObject *iface,
 109     LONG lTimeout,
 110     ULONG uCount,
 111     IWbemClassObject **apObjects,
 112     ULONG *puReturned )
 113 {
 114     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 115     struct view *view = ec->query->view;
 116     struct table *table;
 117     static int once = 0;
 118     HRESULT hr;
 119     ULONG i, j;
 120
 121     TRACE("%p, %d, %u, %p, %p\n", iface, lTimeout, uCount, apObjects, puReturned);
 122
 123     if (!apObjects || !puReturned) return WBEM_E_INVALID_PARAMETER;
 124     if (lTimeout != WBEM_INFINITE && !once++) FIXME("timeout not supported\n");
 125
 126     *puReturned = 0;
 127
 128     for (i = 0; i < uCount; i++)
 129     {
 130         if (ec->index >= view->result_count) return WBEM_S_FALSE;
 131         table = get_view_table( view, ec->index );
 132         hr = create_class_object( table->name, iface, ec->index, NULL, &apObjects[i] );
 133         if (hr != S_OK)
 134         {
 135             for (j = 0; j < i; j++) IWbemClassObject_Release( apObjects[j] );
 136             return hr;
 137         }
 138         ec->index++;
 139         (*puReturned)++;
 140     }
 141
 142     return WBEM_S_NO_ERROR;
 143 }
 144
 145 static HRESULT WINAPI enum_class_object_NextAsync(
 146     IEnumWbemClassObject *iface,
 147     ULONG uCount,
 148     IWbemObjectSink *pSink )
 149 {
 150     FIXME("%p, %u, %p\n", iface, uCount, pSink);
 151     return E_NOTIMPL;
 152 }
 153
 154 static HRESULT WINAPI enum_class_object_Clone(
 155     IEnumWbemClassObject *iface,
 156     IEnumWbemClassObject **ppEnum )
 157 {
 158     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 159
 160     TRACE("%p, %p\n", iface, ppEnum);
 161
 162     return EnumWbemClassObject_create( ec->query, (void **)ppEnum );
 163 }
 164
 165 static HRESULT WINAPI enum_class_object_Skip(
 166     IEnumWbemClassObject *iface,
 167     LONG lTimeout,
 168     ULONG nCount )
 169 {
 170     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( iface );
 171     struct view *view = ec->query->view;
 172     static int once = 0;
 173
 174     TRACE("%p, %d, %u\n", iface, lTimeout, nCount);
 175
 176     if (lTimeout != WBEM_INFINITE && !once++) FIXME("timeout not supported\n");
 177
 178     if (!view->result_count) return WBEM_S_FALSE;
 179
 180     if (nCount > view->result_count - ec->index)
 181     {
 182         ec->index = view->result_count - 1;
 183         return WBEM_S_FALSE;
 184     }
 185     ec->index += nCount;
 186     return WBEM_S_NO_ERROR;
 187 }
 188
 189 static const IEnumWbemClassObjectVtbl enum_class_object_vtbl =
 190 {
 191     enum_class_object_QueryInterface,
 192     enum_class_object_AddRef,
 193     enum_class_object_Release,
 194     enum_class_object_Reset,
 195     enum_class_object_Next,
 196     enum_class_object_NextAsync,
 197     enum_class_object_Clone,
 198     enum_class_object_Skip
 199 };
 200
 201 HRESULT EnumWbemClassObject_create( struct query *query, LPVOID *ppObj )
 202 {
 203     struct enum_class_object *ec;
 204
 205     TRACE("%p\n", ppObj);
 206
 207     ec = heap_alloc( sizeof(*ec) );
 208     if (!ec) return E_OUTOFMEMORY;
 209
 210     ec->IEnumWbemClassObject_iface.lpVtbl = &enum_class_object_vtbl;
 211     ec->refs  = 1;
 212     ec->query = addref_query( query );
 213     ec->index = 0;
 214
 215     *ppObj = &ec->IEnumWbemClassObject_iface;
 216
 217     TRACE("returning iface %p\n", *ppObj);
 218     return S_OK;
 219 }
 220
 221 static struct record *create_record( struct table *table )
 222 {
 223     UINT i;
 224     struct record *record;
 225
 226     if (!(record = heap_alloc( sizeof(struct record) ))) return NULL;
 227     if (!(record->fields = heap_alloc( table->num_cols * sizeof(struct field) )))
 228     {
 229         heap_free( record );
 230         return NULL;
 231     }
 232     for (i = 0; i < table->num_cols; i++)
 233     {
 234         record->fields[i].type    = table->columns[i].type;
 235         record->fields[i].u.ival  = 0;
 236     }
 237     record->count = table->num_cols;
 238     record->table = addref_table( table );
 239     return record;
 240 }
 241
 242 void destroy_array( struct array *array, CIMTYPE type )
 243 {
 244     UINT i;
 245     if (!array) return;
 246     if (type == CIM_STRING || type == CIM_DATETIME || type == CIM_REFERENCE)
 247     {
 248         for (i = 0; i < array->count; i++) heap_free( *(WCHAR **)((char *)array->ptr + i * array->elem_size) );
 249     }
 250     heap_free( array->ptr );
 251     heap_free( array );
 252 }
 253
 254 static void destroy_record( struct record *record )
 255 {
 256     UINT i;
 257
 258     if (!record) return;
 259     release_table( record->table );
 260     for (i = 0; i < record->count; i++)
 261     {
 262         if (record->fields[i].type == CIM_STRING ||
 263             record->fields[i].type == CIM_DATETIME ||
 264             record->fields[i].type == CIM_REFERENCE) heap_free( record->fields[i].u.sval );
 265         else if (record->fields[i].type & CIM_FLAG_ARRAY)
 266             destroy_array( record->fields[i].u.aval, record->fields[i].type & CIM_TYPE_MASK );
 267     }
 268     heap_free( record->fields );
 269     heap_free( record );
 270 }
 271
 272 struct class_object
 273 {
 274     IWbemClassObject IWbemClassObject_iface;
 275     LONG refs;
 276     WCHAR *name;
 277     IEnumWbemClassObject *iter;
 278     UINT index;
 279     UINT index_method;
 280     UINT index_property;
 281     struct record *record; /* uncommitted instance */
 282 };
 283
 284 static inline struct class_object *impl_from_IWbemClassObject(
 285     IWbemClassObject *iface )
 286 {
 287     return CONTAINING_RECORD(iface, struct class_object, IWbemClassObject_iface);
 288 }
 289
 290 static ULONG WINAPI class_object_AddRef(
 291     IWbemClassObject *iface )
 292 {
 293     struct class_object *co = impl_from_IWbemClassObject( iface );
 294     return InterlockedIncrement( &co->refs );
 295 }
 296
 297 static ULONG WINAPI class_object_Release(
 298     IWbemClassObject *iface )
 299 {
 300     struct class_object *co = impl_from_IWbemClassObject( iface );
 301     LONG refs = InterlockedDecrement( &co->refs );
 302     if (!refs)
 303     {
 304         TRACE("destroying %p\n", co);
 305         if (co->iter) IEnumWbemClassObject_Release( co->iter );
 306         destroy_record( co->record );
 307         heap_free( co->name );
 308         heap_free( co );
 309     }
 310     return refs;
 311 }
 312
 313 static HRESULT WINAPI class_object_QueryInterface(
 314     IWbemClassObject *iface,
 315     REFIID riid,
 316     void **ppvObject )
 317 {
 318     struct class_object *co = impl_from_IWbemClassObject( iface );
 319
 320     TRACE("%p, %s, %p\n", co, debugstr_guid( riid ), ppvObject );
 321
 322     if ( IsEqualGUID( riid, &IID_IWbemClassObject ) ||
 323          IsEqualGUID( riid, &IID_IUnknown ) )
 324     {
 325         *ppvObject = co;
 326     }
 327     else if (IsEqualGUID( riid, &IID_IClientSecurity ))
 328     {
 329         *ppvObject = &client_security;
 330         return S_OK;
 331     }
 332     else
 333     {
 334         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 335         return E_NOINTERFACE;
 336     }
 337     IWbemClassObject_AddRef( iface );
 338     return S_OK;
 339 }
 340
 341 static HRESULT WINAPI class_object_GetQualifierSet(
 342     IWbemClassObject *iface,
 343     IWbemQualifierSet **ppQualSet )
 344 {
 345     struct class_object *co = impl_from_IWbemClassObject( iface );
 346
 347     TRACE("%p, %p\n", iface, ppQualSet);
 348
 349     return WbemQualifierSet_create( co->name, NULL, (void **)ppQualSet );
 350 }
 351
 352 static HRESULT record_get_value( const struct record *record, UINT index, VARIANT *var, CIMTYPE *type )
 353 {
 354     VARTYPE vartype = to_vartype( record->fields[index].type & CIM_TYPE_MASK );
 355
 356     if (type) *type = record->fields[index].type;
 357
 358     if (record->fields[index].type & CIM_FLAG_ARRAY)
 359     {
 360         V_VT( var ) = vartype | VT_ARRAY;
 361         V_ARRAY( var ) = to_safearray( record->fields[index].u.aval, record->fields[index].type & CIM_TYPE_MASK );
 362         return S_OK;
 363     }
 364     switch (record->fields[index].type)
 365     {
 366     case CIM_STRING:
 367     case CIM_DATETIME:
 368     case CIM_REFERENCE:
 369         V_BSTR( var ) = SysAllocString( record->fields[index].u.sval );
 370         break;
 371     case CIM_SINT32:
 372         V_I4( var ) = record->fields[index].u.ival;
 373         break;
 374     case CIM_UINT32:
 375         V_UI4( var ) = record->fields[index].u.ival;
 376         break;
 377     default:
 378         FIXME("unhandled type %u\n", record->fields[index].type);
 379         return WBEM_E_INVALID_PARAMETER;
 380     }
 381     V_VT( var ) = vartype;
 382     return S_OK;
 383 }
 384
 385 static HRESULT WINAPI class_object_Get(
 386     IWbemClassObject *iface,
 387     LPCWSTR wszName,
 388     LONG lFlags,
 389     VARIANT *pVal,
 390     CIMTYPE *pType,
 391     LONG *plFlavor )
 392 {
 393     struct class_object *co = impl_from_IWbemClassObject( iface );
 394     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 395
 396     TRACE("%p, %s, %08x, %p, %p, %p\n", iface, debugstr_w(wszName), lFlags, pVal, pType, plFlavor);
 397
 398     if (co->record)
 399     {
 400         UINT index;
 401         HRESULT hr;
 402
 403         if ((hr = get_column_index( co->record->table, wszName, &index )) != S_OK) return hr;
 404         return record_get_value( co->record, index, pVal, pType );
 405     }
 406     return get_propval( ec->query->view, co->index, wszName, pVal, pType, plFlavor );
 407 }
 408
 409 static HRESULT record_set_value( struct record *record, UINT index, VARIANT *var )
 410 {
 411     LONGLONG val;
 412     CIMTYPE type;
 413     HRESULT hr;
 414
 415     if ((hr = to_longlong( var, &val, &type )) != S_OK) return hr;
 416     if (type != record->fields[index].type) return WBEM_E_TYPE_MISMATCH;
 417
 418     if (type & CIM_FLAG_ARRAY)
 419     {
 420         record->fields[index].u.aval = (struct array *)(INT_PTR)val;
 421         return S_OK;
 422     }
 423     switch (type)
 424     {
 425     case CIM_STRING:
 426     case CIM_DATETIME:
 427     case CIM_REFERENCE:
 428         record->fields[index].u.sval = (WCHAR *)(INT_PTR)val;
 429         return S_OK;
 430     case CIM_SINT16:
 431     case CIM_UINT16:
 432     case CIM_SINT32:
 433     case CIM_UINT32:
 434         record->fields[index].u.ival = val;
 435         return S_OK;
 436     default:
 437         FIXME("unhandled type %u\n", type);
 438         break;
 439     }
 440     return WBEM_E_INVALID_PARAMETER;
 441 }
 442
 443 static HRESULT WINAPI class_object_Put(
 444     IWbemClassObject *iface,
 445     LPCWSTR wszName,
 446     LONG lFlags,
 447     VARIANT *pVal,
 448     CIMTYPE Type )
 449 {
 450     struct class_object *co = impl_from_IWbemClassObject( iface );
 451     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 452
 453     TRACE("%p, %s, %08x, %p, %u\n", iface, debugstr_w(wszName), lFlags, pVal, Type);
 454
 455     if (co->record)
 456     {
 457         UINT index;
 458         HRESULT hr;
 459
 460         if ((hr = get_column_index( co->record->table, wszName, &index )) != S_OK) return hr;
 461         return record_set_value( co->record, index, pVal );
 462     }
 463
 464     if (!ec) return S_OK;
 465
 466     return put_propval( ec->query->view, co->index, wszName, pVal, Type );
 467 }
 468
 469 static HRESULT WINAPI class_object_Delete(
 470     IWbemClassObject *iface,
 471     LPCWSTR wszName )
 472 {
 473     FIXME("%p, %s\n", iface, debugstr_w(wszName));
 474     return E_NOTIMPL;
 475 }
 476
 477 static HRESULT WINAPI class_object_GetNames(
 478     IWbemClassObject *iface,
 479     LPCWSTR wszQualifierName,
 480     LONG lFlags,
 481     VARIANT *pQualifierVal,
 482     SAFEARRAY **pNames )
 483 {
 484     struct class_object *co = impl_from_IWbemClassObject( iface );
 485     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 486
 487     TRACE("%p, %s, %08x, %s, %p\n", iface, debugstr_w(wszQualifierName), lFlags,
 488           debugstr_variant(pQualifierVal), pNames);
 489
 490     if (!pNames)
 491         return WBEM_E_INVALID_PARAMETER;
 492
 493     /* Combination used in a handful of broken apps */
 494     if (lFlags == (WBEM_FLAG_ALWAYS | WBEM_MASK_CONDITION_ORIGIN))
 495         lFlags = WBEM_FLAG_ALWAYS;
 496
 497     if (lFlags && (lFlags != WBEM_FLAG_ALWAYS &&
 498         lFlags != WBEM_FLAG_NONSYSTEM_ONLY &&
 499         lFlags != WBEM_FLAG_SYSTEM_ONLY))
 500     {
 501         FIXME("flags %08x not supported\n", lFlags);
 502         return E_NOTIMPL;
 503     }
 504
 505     if (wszQualifierName || pQualifierVal)
 506         FIXME("qualifier not supported\n");
 507
 508     return get_properties( ec->query->view, co->index, lFlags, pNames );
 509 }
 510
 511 static HRESULT WINAPI class_object_BeginEnumeration(
 512     IWbemClassObject *iface,
 513     LONG lEnumFlags )
 514 {
 515     struct class_object *co = impl_from_IWbemClassObject( iface );
 516
 517     TRACE("%p, %08x\n", iface, lEnumFlags);
 518
 519     if (lEnumFlags) FIXME("flags 0x%08x not supported\n", lEnumFlags);
 520
 521     co->index_property = 0;
 522     return S_OK;
 523 }
 524
 525 static HRESULT WINAPI class_object_Next(
 526     IWbemClassObject *iface,
 527     LONG lFlags,
 528     BSTR *strName,
 529     VARIANT *pVal,
 530     CIMTYPE *pType,
 531     LONG *plFlavor )
 532 {
 533     struct class_object *obj = impl_from_IWbemClassObject( iface );
 534     struct enum_class_object *iter = impl_from_IEnumWbemClassObject( obj->iter );
 535     struct view *view = iter->query->view;
 536     struct table *table = get_view_table( view, obj->index );
 537     BSTR prop;
 538     HRESULT hr;
 539     UINT i;
 540
 541     TRACE("%p, %08x, %p, %p, %p, %p\n", iface, lFlags, strName, pVal, pType, plFlavor);
 542
 543     for (i = obj->index_property; i < table->num_cols; i++)
 544     {
 545         if (is_method( table, i )) continue;
 546         if (!is_result_prop( view, table->columns[i].name )) continue;
 547         if (!(prop = SysAllocString( table->columns[i].name ))) return E_OUTOFMEMORY;
 548         if ((hr = get_propval( view, obj->index, prop, pVal, pType, plFlavor )) != S_OK)
 549         {
 550             SysFreeString( prop );
 551             return hr;
 552         }
 553
 554         obj->index_property = i + 1;
 555         if (strName) *strName = prop;
 556         else SysFreeString( prop );
 557
 558         return S_OK;
 559     }
 560     return WBEM_S_NO_MORE_DATA;
 561 }
 562
 563 static HRESULT WINAPI class_object_EndEnumeration(
 564     IWbemClassObject *iface )
 565 {
 566     struct class_object *co = impl_from_IWbemClassObject( iface );
 567
 568     TRACE("%p\n", iface);
 569
 570     co->index_property = 0;
 571     return S_OK;
 572 }
 573
 574 static HRESULT WINAPI class_object_GetPropertyQualifierSet(
 575     IWbemClassObject *iface,
 576     LPCWSTR wszProperty,
 577     IWbemQualifierSet **ppQualSet )
 578 {
 579     struct class_object *co = impl_from_IWbemClassObject( iface );
 580
 581     TRACE("%p, %s, %p\n", iface, debugstr_w(wszProperty), ppQualSet);
 582
 583     return WbemQualifierSet_create( co->name, wszProperty, (void **)ppQualSet );
 584 }
 585
 586 static HRESULT WINAPI class_object_Clone(
 587     IWbemClassObject *iface,
 588     IWbemClassObject **ppCopy )
 589 {
 590     FIXME("%p, %p\n", iface, ppCopy);
 591     return E_NOTIMPL;
 592 }
 593
 594 static BSTR get_body_text( const struct table *table, UINT row, UINT *len )
 595 {
 596     BSTR value, ret;
 597     WCHAR *p;
 598     UINT i;
 599
 600     *len = 0;
 601     for (i = 0; i < table->num_cols; i++)
 602     {
 603         if ((value = get_value_bstr( table, row, i )))
 604         {
 605             *len += ARRAY_SIZE( L"\n\t%s = %s;" );
 606             *len += lstrlenW( table->columns[i].name );
 607             *len += SysStringLen( value );
 608             SysFreeString( value );
 609         }
 610     }
 611     if (!(ret = SysAllocStringLen( NULL, *len ))) return NULL;
 612     p = ret;
 613     for (i = 0; i < table->num_cols; i++)
 614     {
 615         if ((value = get_value_bstr( table, row, i )))
 616         {
 617             p += swprintf( p, *len - (p - ret), L"\n\t%s = %s;", table->columns[i].name, value );
 618             SysFreeString( value );
 619         }
 620     }
 621     return ret;
 622 }
 623
 624 static BSTR get_object_text( const struct view *view, UINT index )
 625 {
 626     UINT len, len_body, row = view->result[index];
 627     struct table *table = get_view_table( view, index );
 628     BSTR ret, body;
 629
 630     len = ARRAY_SIZE( L"\ninstance of %s\n{%s\n};" );
 631     len += lstrlenW( table->name );
 632     if (!(body = get_body_text( table, row, &len_body ))) return NULL;
 633     len += len_body;
 634
 635     if (!(ret = SysAllocStringLen( NULL, len ))) return NULL;
 636     swprintf( ret, len, L"\ninstance of %s\n{%s\n};", table->name, body );
 637     SysFreeString( body );
 638     return ret;
 639 }
 640
 641 static HRESULT WINAPI class_object_GetObjectText(
 642     IWbemClassObject *iface,
 643     LONG lFlags,
 644     BSTR *pstrObjectText )
 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     BSTR text;
 650
 651     TRACE("%p, %08x, %p\n", iface, lFlags, pstrObjectText);
 652
 653     if (lFlags) FIXME("flags %08x not implemented\n", lFlags);
 654
 655     if (!(text = get_object_text( view, co->index ))) return E_OUTOFMEMORY;
 656     *pstrObjectText = text;
 657     return S_OK;
 658 }
 659
 660 static HRESULT WINAPI class_object_SpawnDerivedClass(
 661     IWbemClassObject *iface,
 662     LONG lFlags,
 663     IWbemClassObject **ppNewClass )
 664 {
 665     FIXME("%p, %08x, %p\n", iface, lFlags, ppNewClass);
 666     return E_NOTIMPL;
 667 }
 668
 669 static HRESULT WINAPI class_object_SpawnInstance(
 670     IWbemClassObject *iface,
 671     LONG lFlags,
 672     IWbemClassObject **ppNewInstance )
 673 {
 674     struct class_object *co = impl_from_IWbemClassObject( iface );
 675     struct enum_class_object *ec = impl_from_IEnumWbemClassObject( co->iter );
 676     struct table *table = get_view_table( ec->query->view, co->index );
 677     struct record *record;
 678
 679     TRACE("%p, %08x, %p\n", iface, lFlags, ppNewInstance);
 680
 681     if (!(record = create_record( table ))) return E_OUTOFMEMORY;
 682
 683     return create_class_object( co->name, NULL, 0, record, ppNewInstance );
 684 }
 685
 686 static HRESULT WINAPI class_object_CompareTo(
 687     IWbemClassObject *iface,
 688     LONG lFlags,
 689     IWbemClassObject *pCompareTo )
 690 {
 691     FIXME("%p, %08x, %p\n", iface, lFlags, pCompareTo);
 692     return E_NOTIMPL;
 693 }
 694
 695 static HRESULT WINAPI class_object_GetPropertyOrigin(
 696     IWbemClassObject *iface,
 697     LPCWSTR wszName,
 698     BSTR *pstrClassName )
 699 {
 700     FIXME("%p, %s, %p\n", iface, debugstr_w(wszName), pstrClassName);
 701     return E_NOTIMPL;
 702 }
 703
 704 static HRESULT WINAPI class_object_InheritsFrom(
 705     IWbemClassObject *iface,
 706     LPCWSTR strAncestor )
 707 {
 708     FIXME("%p, %s\n", iface, debugstr_w(strAncestor));
 709     return E_NOTIMPL;
 710 }
 711
 712 static UINT count_instances( IEnumWbemClassObject *iter )
 713 {
 714     UINT count = 0;
 715     while (!IEnumWbemClassObject_Skip( iter, WBEM_INFINITE, 1 )) count++;
 716     IEnumWbemClassObject_Reset( iter );
 717     return count;
 718 }
 719
 720 static void set_default_value( CIMTYPE type, UINT val, BYTE *ptr )
 721 {
 722     switch (type)
 723     {
 724     case CIM_SINT16:
 725         *(INT16 *)ptr = val;
 726         break;
 727     case CIM_UINT16:
 728         *(UINT16 *)ptr = val;
 729         break;
 730     case CIM_SINT32:
 731         *(INT32 *)ptr = val;
 732         break;
 733     case CIM_UINT32:
 734         *(UINT32 *)ptr = val;
 735         break;
 736     default:
 737         FIXME("unhandled type %u\n", type);
 738         break;
 739     }
 740 }
 741
 742 static HRESULT create_signature_columns_and_data( IEnumWbemClassObject *iter, UINT *num_cols,
 743                                            struct column **cols, BYTE **data )
 744 {
 745     struct column *columns;
 746     BYTE *row;
 747     IWbemClassObject *param;
 748     VARIANT val;
 749     HRESULT hr = E_OUTOFMEMORY;
 750     UINT offset = 0;
 751     ULONG count;
 752     int i = 0;
 753
 754     count = count_instances( iter );
 755     if (!(columns = heap_alloc( count * sizeof(struct column) ))) return E_OUTOFMEMORY;
 756     if (!(row = heap_alloc_zero( count * sizeof(LONGLONG) ))) goto error;
 757
 758     for (;;)
 759     {
 760         IEnumWbemClassObject_Next( iter, WBEM_INFINITE, 1, &param, &count );
 761         if (!count) break;
 762
 763         hr = IWbemClassObject_Get( param, L"Parameter", 0, &val, NULL, NULL );
 764         if (hr != S_OK) goto error;
 765         columns[i].name = heap_strdupW( V_BSTR( &val ) );
 766         VariantClear( &val );
 767
 768         hr = IWbemClassObject_Get( param, L"Type", 0, &val, NULL, NULL );
 769         if (hr != S_OK) goto error;
 770         columns[i].type = V_UI4( &val );
 771
 772         hr = IWbemClassObject_Get( param, L"DefaultValue", 0, &val, NULL, NULL );
 773         if (hr != S_OK) goto error;
 774         if (V_UI4( &val )) set_default_value( columns[i].type, V_UI4( &val ), row + offset );
 775         offset += get_type_size( columns[i].type );
 776
 777         IWbemClassObject_Release( param );
 778         i++;
 779     }
 780     *num_cols = i;
 781     *cols = columns;
 782     *data = row;
 783     return S_OK;
 784
 785 error:
 786     for (; i >= 0; i--) heap_free( (WCHAR *)columns[i].name );
 787     heap_free( columns );
 788     heap_free( row );
 789     return hr;
 790 }
 791
 792 static HRESULT create_signature_table( IEnumWbemClassObject *iter, WCHAR *name )
 793 {
 794     HRESULT hr;
 795     struct table *table;
 796     struct column *columns;
 797     UINT num_cols;
 798     BYTE *row;
 799
 800     hr = create_signature_columns_and_data( iter, &num_cols, &columns, &row );
 801     if (hr != S_OK) return hr;
 802
 803     if (!(table = create_table( name, num_cols, columns, 1, 1, row, NULL )))
 804     {
 805         free_columns( columns, num_cols );
 806         heap_free( row );
 807         return E_OUTOFMEMORY;
 808     }
 809     if (!add_table( table )) free_table( table ); /* already exists */
 810     return S_OK;
 811 }
 812
 813 static WCHAR *build_signature_table_name( const WCHAR *class, const WCHAR *method, enum param_direction dir )
 814 {
 815     UINT len = ARRAY_SIZE(L"__%s_%s_%s") + ARRAY_SIZE(L"OUT") + lstrlenW( class ) + lstrlenW( method );
 816     WCHAR *ret;
 817
 818     if (!(ret = heap_alloc( len * sizeof(WCHAR) ))) return NULL;
 819     swprintf( ret, len, L"__%s_%s_%s", class, method, dir == PARAM_IN ? L"IN" : L"OUT" );
 820     return wcsupr( ret );
 821 }
 822
 823 HRESULT create_signature( const WCHAR *class, const WCHAR *method, enum param_direction dir,
 824                           IWbemClassObject **sig )
 825 {
 826     static const WCHAR selectW[] = L"SELECT * FROM __PARAMETERS WHERE Class='%s' AND Method='%s' AND Direction%s";
 827     UINT len = ARRAY_SIZE(selectW) + ARRAY_SIZE(L">=0");
 828     IEnumWbemClassObject *iter;
 829     WCHAR *query, *name;
 830     HRESULT hr;
 831
 832     len += lstrlenW( class ) + lstrlenW( method );
 833     if (!(query = heap_alloc( len * sizeof(WCHAR) ))) return E_OUTOFMEMORY;
 834     swprintf( query, len, selectW, class, method, dir >= 0 ? L">=0" : L"<=0" );
 835
 836     hr = exec_query( query, &iter );
 837     heap_free( query );
 838     if (hr != S_OK) return hr;
 839
 840     if (!count_instances( iter ))
 841     {
 842         *sig = NULL;
 843         IEnumWbemClassObject_Release( iter );
 844         return S_OK;
 845     }
 846
 847     if (!(name = build_signature_table_name( class, method, dir )))
 848     {
 849         IEnumWbemClassObject_Release( iter );
 850         return E_OUTOFMEMORY;
 851     }
 852     hr = create_signature_table( iter, name );
 853     IEnumWbemClassObject_Release( iter );
 854     if (hr == S_OK)
 855         hr = get_object( name, sig );
 856
 857     heap_free( name );
 858     return hr;
 859 }
 860
 861 static HRESULT WINAPI class_object_GetMethod(
 862     IWbemClassObject *iface,
 863     LPCWSTR wszName,
 864     LONG lFlags,
 865     IWbemClassObject **ppInSignature,
 866     IWbemClassObject **ppOutSignature )
 867 {
 868     struct class_object *co = impl_from_IWbemClassObject( iface );
 869     IWbemClassObject *in, *out;
 870     HRESULT hr;
 871
 872     TRACE("%p, %s, %08x, %p, %p\n", iface, debugstr_w(wszName), lFlags, ppInSignature, ppOutSignature);
 873
 874     hr = create_signature( co->name, wszName, PARAM_IN, &in );
 875     if (hr != S_OK) return hr;
 876
 877     hr = create_signature( co->name, wszName, PARAM_OUT, &out );
 878     if (hr == S_OK)
 879     {
 880         if (ppInSignature) *ppInSignature = in;
 881         else if (in) IWbemClassObject_Release( in );
 882         if (ppOutSignature) *ppOutSignature = out;
 883         else if (out) IWbemClassObject_Release( out );
 884     }
 885     else IWbemClassObject_Release( in );
 886     return hr;
 887 }
 888
 889 static HRESULT WINAPI class_object_PutMethod(
 890     IWbemClassObject *iface,
 891     LPCWSTR wszName,
 892     LONG lFlags,
 893     IWbemClassObject *pInSignature,
 894     IWbemClassObject *pOutSignature )
 895 {
 896     FIXME("%p, %s, %08x, %p, %p\n", iface, debugstr_w(wszName), lFlags, pInSignature, pOutSignature);
 897     return E_NOTIMPL;
 898 }
 899
 900 static HRESULT WINAPI class_object_DeleteMethod(
 901     IWbemClassObject *iface,
 902     LPCWSTR wszName )
 903 {
 904     FIXME("%p, %s\n", iface, debugstr_w(wszName));
 905     return E_NOTIMPL;
 906 }
 907
 908 static HRESULT WINAPI class_object_BeginMethodEnumeration(
 909     IWbemClassObject *iface,
 910     LONG lEnumFlags)
 911 {
 912     struct class_object *co = impl_from_IWbemClassObject( iface );
 913
 914     TRACE("%p, %08x\n", iface, lEnumFlags);
 915
 916     if (lEnumFlags) FIXME("flags 0x%08x not supported\n", lEnumFlags);
 917
 918     co->index_method = 0;
 919     return S_OK;
 920 }
 921
 922 static HRESULT WINAPI class_object_NextMethod(
 923     IWbemClassObject *iface,
 924     LONG lFlags,
 925     BSTR *pstrName,
 926     IWbemClassObject **ppInSignature,
 927     IWbemClassObject **ppOutSignature)
 928 {
 929     struct class_object *co = impl_from_IWbemClassObject( iface );
 930     BSTR method;
 931     HRESULT hr;
 932
 933     TRACE("%p, %08x, %p, %p, %p\n", iface, lFlags, pstrName, ppInSignature, ppOutSignature);
 934
 935     if (!(method = get_method_name( co->name, co->index_method ))) return WBEM_S_NO_MORE_DATA;
 936
 937     hr = create_signature( co->name, method, PARAM_IN, ppInSignature );
 938     if (hr != S_OK)
 939     {
 940         SysFreeString( method );
 941         return hr;
 942     }
 943     hr = create_signature( co->name, method, PARAM_OUT, ppOutSignature );
 944     if (hr != S_OK)
 945     {
 946         SysFreeString( method );
 947         if (*ppInSignature)
 948             IWbemClassObject_Release( *ppInSignature );
 949     }
 950     else
 951     {
 952         *pstrName = method;
 953         co->index_method++;
 954     }
 955     return hr;
 956 }
 957
 958 static HRESULT WINAPI class_object_EndMethodEnumeration(
 959     IWbemClassObject *iface )
 960 {
 961     struct class_object *co = impl_from_IWbemClassObject( iface );
 962
 963     TRACE("%p\n", iface);
 964
 965     co->index_method = 0;
 966     return S_OK;
 967 }
 968
 969 static HRESULT WINAPI class_object_GetMethodQualifierSet(
 970     IWbemClassObject *iface,
 971     LPCWSTR wszMethod,
 972     IWbemQualifierSet **ppQualSet)
 973 {
 974     FIXME("%p, %s, %p\n", iface, debugstr_w(wszMethod), ppQualSet);
 975     return E_NOTIMPL;
 976 }
 977
 978 static HRESULT WINAPI class_object_GetMethodOrigin(
 979     IWbemClassObject *iface,
 980     LPCWSTR wszMethodName,
 981     BSTR *pstrClassName)
 982 {
 983     FIXME("%p, %s, %p\n", iface, debugstr_w(wszMethodName), pstrClassName);
 984     return E_NOTIMPL;
 985 }
 986
 987 static const IWbemClassObjectVtbl class_object_vtbl =
 988 {
 989     class_object_QueryInterface,
 990     class_object_AddRef,
 991     class_object_Release,
 992     class_object_GetQualifierSet,
 993     class_object_Get,
 994     class_object_Put,
 995     class_object_Delete,
 996     class_object_GetNames,
 997     class_object_BeginEnumeration,
 998     class_object_Next,
 999     class_object_EndEnumeration,
1000     class_object_GetPropertyQualifierSet,
1001     class_object_Clone,
1002     class_object_GetObjectText,
1003     class_object_SpawnDerivedClass,
1004     class_object_SpawnInstance,
1005     class_object_CompareTo,
1006     class_object_GetPropertyOrigin,
1007     class_object_InheritsFrom,
1008     class_object_GetMethod,
1009     class_object_PutMethod,
1010     class_object_DeleteMethod,
1011     class_object_BeginMethodEnumeration,
1012     class_object_NextMethod,
1013     class_object_EndMethodEnumeration,
1014     class_object_GetMethodQualifierSet,
1015     class_object_GetMethodOrigin
1016 };
1017
1018 HRESULT create_class_object( const WCHAR *name, IEnumWbemClassObject *iter, UINT index,
1019                              struct record *record, IWbemClassObject **obj )
1020 {
1021     struct class_object *co;
1022
1023     TRACE("%s, %p\n", debugstr_w(name), obj);
1024
1025     co = heap_alloc( sizeof(*co) );
1026     if (!co) return E_OUTOFMEMORY;
1027
1028     co->IWbemClassObject_iface.lpVtbl = &class_object_vtbl;
1029     co->refs  = 1;
1030     if (!name) co->name = NULL;
1031     else if (!(co->name = heap_strdupW( name )))
1032     {
1033         heap_free( co );
1034         return E_OUTOFMEMORY;
1035     }
1036     co->iter           = iter;
1037     co->index          = index;
1038     co->index_method   = 0;
1039     co->index_property = 0;
1040     co->record         = record;
1041     if (iter) IEnumWbemClassObject_AddRef( iter );
1042
1043     *obj = &co->IWbemClassObject_iface;
1044
1045     TRACE("returning iface %p\n", *obj);
1046     return S_OK;
1047 }