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Sweden-Number/dlls/wbemprox/query.c

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/*
* Copyright 2012 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wbemcli.h"
#include "wine/debug.h"
#include "wbemprox_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
static HRESULT append_table( struct view *view, struct table *table )
{
struct table **tmp;
if (!(tmp = heap_realloc( view->table, (view->table_count + 1) * sizeof(*tmp) ))) return E_OUTOFMEMORY;
view->table = tmp;
view->table[view->table_count++] = table;
return S_OK;
}
HRESULT create_view( enum view_type type, enum wbm_namespace ns, const WCHAR *path, const struct keyword *keywordlist,
const WCHAR *class, const struct property *proplist, const struct expr *cond, struct view **ret )
{
struct view *view = heap_alloc_zero( sizeof(*view) );
if (!view) return E_OUTOFMEMORY;
switch (type)
{
case VIEW_TYPE_ASSOCIATORS:
view->path = path;
view->keywordlist = keywordlist;
break;
case VIEW_TYPE_SELECT:
{
struct table *table = grab_table( ns, class );
HRESULT hr;
if (table && (hr = append_table( view, table )) != S_OK)
{
heap_free( view );
return hr;
}
else if (!table && ns == WBEMPROX_NAMESPACE_LAST) return WBEM_E_INVALID_CLASS;
view->proplist = proplist;
view->cond = cond;
break;
}
default:
ERR( "unhandled type %u\n", type );
heap_free( view );
return E_INVALIDARG;
}
view->type = type;
view->ns = ns;
*ret = view;
return S_OK;
}
void destroy_view( struct view *view )
{
ULONG i;
if (!view) return;
for (i = 0; i < view->table_count; i++) release_table( view->table[i] );
heap_free( view->table );
heap_free( view->result );
heap_free( view );
}
static BOOL eval_like( const WCHAR *lstr, const WCHAR *rstr )
{
const WCHAR *p = lstr, *q = rstr;
while (*p && *q)
{
if (q[0] == '\\' && q[1] == '\\') q++;
if (*q == '%')
{
while (*q == '%') q++;
if (!*q) return TRUE;
while (*p && *q && towupper( *p ) == towupper( *q )) { p++; q++; };
if (!*p && !*q) return TRUE;
}
if (*q != '%' && towupper( *p++ ) != towupper( *q++ )) return FALSE;
}
return TRUE;
}
static HRESULT eval_strcmp( UINT op, const WCHAR *lstr, const WCHAR *rstr, LONGLONG *val )
{
if (!lstr || !rstr)
{
*val = 0;
return S_OK;
}
switch (op)
{
case OP_EQ:
*val = !wcscmp( lstr, rstr );
break;
case OP_GT:
*val = wcscmp( lstr, rstr ) > 0;
break;
case OP_LT:
*val = wcscmp( lstr, rstr ) < 0;
break;
case OP_LE:
*val = wcscmp( lstr, rstr ) <= 0;
break;
case OP_GE:
*val = wcscmp( lstr, rstr ) >= 0;
break;
case OP_NE:
*val = wcscmp( lstr, rstr );
break;
case OP_LIKE:
*val = eval_like( lstr, rstr );
break;
default:
ERR("unhandled operator %u\n", op);
return WBEM_E_INVALID_QUERY;
}
return S_OK;
}
static BOOL is_int( CIMTYPE type )
{
switch (type)
{
case CIM_SINT8:
case CIM_SINT16:
case CIM_SINT32:
case CIM_SINT64:
case CIM_UINT8:
case CIM_UINT16:
case CIM_UINT32:
case CIM_UINT64:
return TRUE;
default:
return FALSE;
}
}
static inline BOOL is_strcmp( const struct complex_expr *expr, UINT ltype, UINT rtype )
{
if ((ltype == CIM_STRING || is_int( ltype )) && expr->left->type == EXPR_PROPVAL &&
expr->right->type == EXPR_SVAL) return TRUE;
else if ((rtype == CIM_STRING || is_int( rtype )) && expr->right->type == EXPR_PROPVAL &&
expr->left->type == EXPR_SVAL) return TRUE;
return FALSE;
}
static inline BOOL is_boolcmp( const struct complex_expr *expr, UINT ltype, UINT rtype )
{
if (ltype == CIM_BOOLEAN && expr->left->type == EXPR_PROPVAL &&
(expr->right->type == EXPR_SVAL || expr->right->type == EXPR_BVAL)) return TRUE;
else if (rtype == CIM_BOOLEAN && expr->right->type == EXPR_PROPVAL &&
(expr->left->type == EXPR_SVAL || expr->left->type == EXPR_BVAL)) return TRUE;
return FALSE;
}
static HRESULT eval_boolcmp( UINT op, LONGLONG lval, LONGLONG rval, UINT ltype, UINT rtype, LONGLONG *val )
{
if (ltype == CIM_STRING) lval = !wcsicmp( (const WCHAR *)(INT_PTR)lval, L"True" ) ? -1 : 0;
else if (rtype == CIM_STRING) rval = !wcsicmp( (const WCHAR *)(INT_PTR)rval, L"True" ) ? -1 : 0;
switch (op)
{
case OP_EQ:
*val = (lval == rval);
break;
case OP_NE:
*val = (lval != rval);
break;
default:
ERR("unhandled operator %u\n", op);
return WBEM_E_INVALID_QUERY;
}
return S_OK;
}
static inline BOOL is_refcmp( const struct complex_expr *expr, UINT ltype, UINT rtype )
{
if (ltype == CIM_REFERENCE && expr->left->type == EXPR_PROPVAL && expr->right->type == EXPR_SVAL) return TRUE;
else if (rtype == CIM_REFERENCE && expr->right->type == EXPR_PROPVAL && expr->left->type == EXPR_SVAL) return TRUE;
return FALSE;
}
static HRESULT eval_refcmp( UINT op, const WCHAR *lstr, const WCHAR *rstr, LONGLONG *val )
{
if (!lstr || !rstr)
{
*val = 0;
return S_OK;
}
switch (op)
{
case OP_EQ:
*val = !wcsicmp( lstr, rstr );
break;
case OP_NE:
*val = wcsicmp( lstr, rstr );
break;
default:
ERR("unhandled operator %u\n", op);
return WBEM_E_INVALID_QUERY;
}
return S_OK;
}
static UINT resolve_type( UINT left, UINT right )
{
switch (left)
{
case CIM_SINT8:
case CIM_SINT16:
case CIM_SINT32:
case CIM_SINT64:
case CIM_UINT8:
case CIM_UINT16:
case CIM_UINT32:
case CIM_UINT64:
switch (right)
{
case CIM_SINT8:
case CIM_SINT16:
case CIM_SINT32:
case CIM_SINT64:
case CIM_UINT8:
case CIM_UINT16:
case CIM_UINT32:
case CIM_UINT64:
return CIM_UINT64;
default: break;
}
break;
case CIM_STRING:
if (right == CIM_STRING) return CIM_STRING;
break;
case CIM_BOOLEAN:
if (right == CIM_BOOLEAN) return CIM_BOOLEAN;
break;
case CIM_REFERENCE:
if (right == CIM_REFERENCE) return CIM_REFERENCE;
break;
default:
break;
}
return CIM_ILLEGAL;
}
static const WCHAR *format_int( WCHAR *buf, UINT len, CIMTYPE type, LONGLONG val )
{
switch (type)
{
case CIM_SINT8:
case CIM_SINT16:
case CIM_SINT32:
swprintf( buf, len, L"%d", val );
return buf;
case CIM_UINT8:
case CIM_UINT16:
case CIM_UINT32:
swprintf( buf, len, L"%u", val );
return buf;
case CIM_SINT64:
wsprintfW( buf, L"%I64d", val );
return buf;
case CIM_UINT64:
wsprintfW( buf, L"%I64u", val );
return buf;
default:
ERR( "unhandled type %u\n", type );
return NULL;
}
}
static HRESULT eval_binary( const struct table *table, UINT row, const struct complex_expr *expr,
LONGLONG *val, UINT *type )
{
HRESULT lret, rret;
LONGLONG lval, rval;
UINT ltype, rtype;
lret = eval_cond( table, row, expr->left, &lval, &ltype );
rret = eval_cond( table, row, expr->right, &rval, &rtype );
if (lret != S_OK || rret != S_OK) return WBEM_E_INVALID_QUERY;
*type = resolve_type( ltype, rtype );
if (is_strcmp( expr, ltype, rtype ))
{
const WCHAR *lstr, *rstr;
WCHAR lbuf[21], rbuf[21];
if (is_int( ltype )) lstr = format_int( lbuf, ARRAY_SIZE( lbuf ), ltype, lval );
else lstr = (const WCHAR *)(INT_PTR)lval;
if (is_int( rtype )) rstr = format_int( rbuf, ARRAY_SIZE( rbuf ), rtype, rval );
else rstr = (const WCHAR *)(INT_PTR)rval;
return eval_strcmp( expr->op, lstr, rstr, val );
}
if (is_boolcmp( expr, ltype, rtype ))
{
return eval_boolcmp( expr->op, lval, rval, ltype, rtype, val );
}
if (is_refcmp( expr, ltype, rtype ))
{
return eval_refcmp( expr->op, (const WCHAR *)(INT_PTR)lval, (const WCHAR *)(INT_PTR)rval, val );
}
switch (expr->op)
{
case OP_EQ:
*val = (lval == rval);
break;
case OP_AND:
*val = (lval && rval);
break;
case OP_OR:
*val = (lval || rval);
break;
case OP_GT:
*val = (lval > rval);
break;
case OP_LT:
*val = (lval < rval);
break;
case OP_LE:
*val = (lval <= rval);
break;
case OP_GE:
*val = (lval >= rval);
break;
case OP_NE:
*val = (lval != rval);
break;
default:
ERR("unhandled operator %u\n", expr->op);
return WBEM_E_INVALID_QUERY;
}
return S_OK;
}
static HRESULT eval_unary( const struct table *table, UINT row, const struct complex_expr *expr,
LONGLONG *val, UINT *type )
{
HRESULT hr;
UINT column;
LONGLONG lval;
if (expr->op == OP_NOT)
{
hr = eval_cond( table, row, expr->left, &lval, type );
if (hr != S_OK)
return hr;
*val = !lval;
return S_OK;
}
hr = get_column_index( table, expr->left->u.propval->name, &column );
if (hr != S_OK)
return hr;
hr = get_value( table, row, column, &lval );
if (hr != S_OK)
return hr;
switch (expr->op)
{
case OP_ISNULL:
*val = !lval;
break;
case OP_NOTNULL:
*val = lval;
break;
default:
ERR("unknown operator %u\n", expr->op);
return WBEM_E_INVALID_QUERY;
}
*type = table->columns[column].type & CIM_TYPE_MASK;
return S_OK;
}
static HRESULT eval_propval( const struct table *table, UINT row, const struct property *propval,
LONGLONG *val, UINT *type )
{
HRESULT hr;
UINT column;
hr = get_column_index( table, propval->name, &column );
if (hr != S_OK)
return hr;
*type = table->columns[column].type & CIM_TYPE_MASK;
return get_value( table, row, column, val );
}
HRESULT eval_cond( const struct table *table, UINT row, const struct expr *cond, LONGLONG *val, UINT *type )
{
if (!cond)
{
*val = 1;
*type = CIM_UINT64;
return S_OK;
}
switch (cond->type)
{
case EXPR_COMPLEX:
return eval_binary( table, row, &cond->u.expr, val, type );
case EXPR_UNARY:
return eval_unary( table, row, &cond->u.expr, val, type );
case EXPR_PROPVAL:
return eval_propval( table, row, cond->u.propval, val, type );
case EXPR_SVAL:
*val = (INT_PTR)cond->u.sval;
*type = CIM_STRING;
return S_OK;
case EXPR_IVAL:
*val = cond->u.ival;
*type = CIM_UINT64;
return S_OK;
case EXPR_BVAL:
*val = cond->u.ival;
*type = CIM_BOOLEAN;
return S_OK;
default:
ERR("invalid expression type\n");
break;
}
return WBEM_E_INVALID_QUERY;
}
static WCHAR *build_assoc_query( const WCHAR *class, UINT class_len )
{
static const WCHAR fmtW[] = L"SELECT * FROM __ASSOCIATORS WHERE Class='%s'";
UINT len = class_len + ARRAY_SIZE(fmtW);
WCHAR *ret;
if (!(ret = heap_alloc( len * sizeof(WCHAR) ))) return NULL;
swprintf( ret, len, fmtW, class );
return ret;
}
static HRESULT create_assoc_enum( enum wbm_namespace ns, const WCHAR *class, UINT class_len,
IEnumWbemClassObject **iter )
{
WCHAR *query;
HRESULT hr;
if (!(query = build_assoc_query( class, class_len ))) return E_OUTOFMEMORY;
hr = exec_query( ns, query, iter );
heap_free( query );
return hr;
}
static WCHAR *build_antecedent_query( const WCHAR *assocclass, const WCHAR *dependent )
{
static const WCHAR fmtW[] = L"SELECT Antecedent FROM %s WHERE Dependent='%s'";
UINT len = lstrlenW(assocclass) + lstrlenW(dependent) + ARRAY_SIZE(fmtW);
WCHAR *ret;
if (!(ret = heap_alloc( len * sizeof(WCHAR) ))) return NULL;
swprintf( ret, len, fmtW, assocclass, dependent );
return ret;
}
static BSTR build_servername(void)
{
WCHAR server[MAX_COMPUTERNAME_LENGTH + 1], *p;
DWORD len = ARRAY_SIZE( server );
if (!(GetComputerNameW( server, &len ))) return NULL;
for (p = server; *p; p++) *p = towupper( *p );
return SysAllocString( server );
}
static BSTR build_namespace(void)
{
return SysAllocString( L"ROOT\\CIMV2" );
}
static WCHAR *build_canonical_path( const WCHAR *relpath )
{
BSTR server, namespace;
WCHAR *ret;
UINT len, i;
if (!(server = build_servername())) return NULL;
if (!(namespace = build_namespace()))
{
SysFreeString( server );
return NULL;
}
len = ARRAY_SIZE( L"\\\\%s\\%s:" ) + SysStringLen( server ) + SysStringLen( namespace ) + lstrlenW( relpath );
if ((ret = heap_alloc( len * sizeof(WCHAR ) )))
{
len = swprintf( ret, len, L"\\\\%s\\%s:", server, namespace );
for (i = 0; i < lstrlenW( relpath ); i ++)
{
if (relpath[i] == '\'') ret[len++] = '"';
else ret[len++] = relpath[i];
}
ret[len] = 0;
}
SysFreeString( server );
SysFreeString( namespace );
return ret;
}
static HRESULT get_antecedent( enum wbm_namespace ns, const WCHAR *assocclass, const WCHAR *dependent, BSTR *ret )
{
WCHAR *fullpath, *str;
IEnumWbemClassObject *iter = NULL;
IWbemClassObject *obj;
HRESULT hr = E_OUTOFMEMORY;
ULONG count;
VARIANT var;
if (!(fullpath = build_canonical_path( dependent ))) return E_OUTOFMEMORY;
if (!(str = build_antecedent_query( assocclass, fullpath ))) goto done;
if ((hr = exec_query( ns, str, &iter )) != S_OK) goto done;
IEnumWbemClassObject_Next( iter, WBEM_INFINITE, 1, &obj, &count );
if (!count)
{
*ret = NULL;
goto done;
}
hr = IWbemClassObject_Get( obj, L"Antecedent", 0, &var, NULL, NULL );
IWbemClassObject_Release( obj );
if (hr != S_OK) goto done;
*ret = V_BSTR( &var );
done:
if (iter) IEnumWbemClassObject_Release( iter );
heap_free( str );
heap_free( fullpath );
return hr;
}
static HRESULT do_query( enum wbm_namespace ns, const WCHAR *str, struct query **ret_query )
{
struct query *query;
HRESULT hr;
if (!(query = create_query( ns ))) return E_OUTOFMEMORY;
if ((hr = parse_query( ns, str, &query->view, &query->mem )) != S_OK || (hr = execute_view( query->view )) != S_OK)
{
release_query( query );
return hr;
}
*ret_query = query;
return S_OK;
}
static HRESULT get_antecedent_table( enum wbm_namespace ns, const WCHAR *assocclass, const WCHAR *dependent,
struct table **table )
{
BSTR antecedent = NULL;
struct path *path = NULL;
WCHAR *str = NULL;
struct query *query = NULL;
HRESULT hr;
if ((hr = get_antecedent( ns, assocclass, dependent, &antecedent )) != S_OK) return hr;
if (!antecedent)
{
*table = NULL;
return S_OK;
}
if ((hr = parse_path( antecedent, &path )) != S_OK) goto done;
if (!(str = query_from_path( path )))
{
hr = E_OUTOFMEMORY;
goto done;
}
if ((hr = do_query( ns, str, &query )) != S_OK) goto done;
if (query->view->table_count) *table = addref_table( query->view->table[0] );
else *table = NULL;
done:
if (query) release_query( query );
free_path( path );
SysFreeString( antecedent );
heap_free( str );
return hr;
}
static HRESULT exec_assoc_view( struct view *view )
{
IEnumWbemClassObject *iter = NULL;
struct path *path;
HRESULT hr;
if (view->keywordlist) FIXME( "ignoring keywords\n" );
if ((hr = parse_path( view->path, &path )) != S_OK) return hr;
if ((hr = create_assoc_enum( view->ns, path->class, path->class_len, &iter )) != S_OK) goto done;
for (;;)
{
ULONG count;
IWbemClassObject *obj;
struct table *table;
VARIANT var;
IEnumWbemClassObject_Next( iter, WBEM_INFINITE, 1, &obj, &count );
if (!count) break;
if ((hr = IWbemClassObject_Get( obj, L"AssocClass", 0, &var, NULL, NULL )) != S_OK)
{
IWbemClassObject_Release( obj );
goto done;
}
IWbemClassObject_Release( obj );
hr = get_antecedent_table( view->ns, V_BSTR(&var), view->path, &table );
VariantClear( &var );
if (hr != S_OK) goto done;
if (table && (hr = append_table( view, table )) != S_OK)
{
release_table( table );
goto done;
}
}
if (view->table_count)
{
if (!(view->result = heap_alloc_zero( view->table_count * sizeof(UINT) ))) hr = E_OUTOFMEMORY;
else view->result_count = view->table_count;
}
done:
if (iter) IEnumWbemClassObject_Release( iter );
free_path( path );
return hr;
}
static HRESULT exec_select_view( struct view *view )
{
UINT i, j = 0, len;
enum fill_status status = FILL_STATUS_UNFILTERED;
struct table *table;
if (!view->table_count) return S_OK;
table = view->table[0];
if (table->fill)
{
clear_table( table );
status = table->fill( table, view->cond );
}
if (status == FILL_STATUS_FAILED) return WBEM_E_FAILED;
if (!table->num_rows) return S_OK;
len = min( table->num_rows, 16 );
if (!(view->result = heap_alloc( len * sizeof(UINT) ))) return E_OUTOFMEMORY;
for (i = 0; i < table->num_rows; i++)
{
HRESULT hr;
LONGLONG val = 0;
UINT type;
if (j >= len)
{
UINT *tmp;
len *= 2;
if (!(tmp = heap_realloc( view->result, len * sizeof(UINT) ))) return E_OUTOFMEMORY;
view->result = tmp;
}
if (status == FILL_STATUS_FILTERED) val = 1;
else if ((hr = eval_cond( table, i, view->cond, &val, &type )) != S_OK) return hr;
if (val) view->result[j++] = i;
}
view->result_count = j;
return S_OK;
}
HRESULT execute_view( struct view *view )
{
switch (view->type)
{
case VIEW_TYPE_ASSOCIATORS:
return exec_assoc_view( view );
case VIEW_TYPE_SELECT:
return exec_select_view( view );
default:
ERR( "unhandled type %u\n", view->type );
return E_INVALIDARG;
}
}
struct query *create_query( enum wbm_namespace ns )
{
struct query *query;
if (!(query = heap_alloc( sizeof(*query) ))) return NULL;
list_init( &query->mem );
query->ns = ns;
query->refs = 1;
return query;
}
void free_query( struct query *query )
{
struct list *mem, *next;
if (!query) return;
destroy_view( query->view );
LIST_FOR_EACH_SAFE( mem, next, &query->mem ) { heap_free( mem ); }
heap_free( query );
}
struct query *addref_query( struct query *query )
{
InterlockedIncrement( &query->refs );
return query;
}
void release_query( struct query *query )
{
if (!InterlockedDecrement( &query->refs )) free_query( query );
}
HRESULT exec_query( enum wbm_namespace ns, const WCHAR *str, IEnumWbemClassObject **result )
{
HRESULT hr;
struct query *query;
*result = NULL;
if (!(query = create_query( ns ))) return E_OUTOFMEMORY;
hr = parse_query( ns, str, &query->view, &query->mem );
if (hr != S_OK) goto done;
hr = execute_view( query->view );
if (hr != S_OK) goto done;
hr = EnumWbemClassObject_create( query, (void **)result );
done:
release_query( query );
return hr;
}
BOOL is_result_prop( const struct view *view, const WCHAR *name )
{
const struct property *prop = view->proplist;
if (!prop) return TRUE;
while (prop)
{
if (!wcsicmp( prop->name, name )) return TRUE;
prop = prop->next;
}
return FALSE;
}
static BOOL is_system_prop( const WCHAR *name )
{
return (name[0] == '_' && name[1] == '_');
}
static BSTR build_proplist( const struct table *table, UINT row, UINT count, UINT *len )
{
UINT i, j, offset;
BSTR *values, ret = NULL;
if (!(values = heap_alloc( count * sizeof(BSTR) ))) return NULL;
*len = j = 0;
for (i = 0; i < table->num_cols; i++)
{
if (table->columns[i].type & COL_FLAG_KEY)
{
const WCHAR *name = table->columns[i].name;
values[j] = get_value_bstr( table, row, i );
*len += lstrlenW( L"%s=%s" ) + lstrlenW( name ) + lstrlenW( values[j] );
j++;
}
}
if ((ret = SysAllocStringLen( NULL, *len )))
{
offset = j = 0;
for (i = 0; i < table->num_cols; i++)
{
if (table->columns[i].type & COL_FLAG_KEY)
{
const WCHAR *name = table->columns[i].name;
offset += swprintf( ret + offset, *len - offset, L"%s=%s", name, values[j] );
if (j < count - 1) ret[offset++] = ',';
j++;
}
}
}
for (i = 0; i < count; i++) SysFreeString( values[i] );
heap_free( values );
return ret;
}
static UINT count_key_columns( const struct table *table )
{
UINT i, num_keys = 0;
for (i = 0; i < table->num_cols; i++)
{
if (table->columns[i].type & COL_FLAG_KEY) num_keys++;
}
return num_keys;
}
static BSTR build_relpath( const struct view *view, UINT table_index, UINT result_index, const WCHAR *name )
{
BSTR class, proplist, ret = NULL;
struct table *table = view->table[table_index];
UINT row = view->result[result_index];
UINT num_keys, len;
if (view->proplist) return NULL;
if (!(class = SysAllocString( view->table[table_index]->name ))) return NULL;
if (!(num_keys = count_key_columns( table ))) return class;
if (!(proplist = build_proplist( table, row, num_keys, &len ))) goto done;
len += lstrlenW( L"%s.%s" ) + SysStringLen( class );
if (!(ret = SysAllocStringLen( NULL, len ))) goto done;
swprintf( ret, len, L"%s.%s", class, proplist );
done:
SysFreeString( class );
SysFreeString( proplist );
return ret;
}
static BSTR build_path( const struct view *view, UINT table_index, UINT result_index, const WCHAR *name )
{
BSTR server, namespace = NULL, relpath = NULL, ret = NULL;
UINT len;
if (view->proplist) return NULL;
if (!(server = build_servername())) return NULL;
if (!(namespace = build_namespace())) goto done;
if (!(relpath = build_relpath( view, table_index, result_index, name ))) goto done;
len = lstrlenW( L"\\\\%s\\%s:%s" ) + SysStringLen( server ) + SysStringLen( namespace ) + SysStringLen( relpath );
if (!(ret = SysAllocStringLen( NULL, len ))) goto done;
swprintf( ret, len, L"\\\\%s\\%s:%s", server, namespace, relpath );
done:
SysFreeString( server );
SysFreeString( namespace );
SysFreeString( relpath );
return ret;
}
BOOL is_method( const struct table *table, UINT column )
{
return table->columns[column].type & COL_FLAG_METHOD;
}
static UINT count_properties( const struct table *table )
{
UINT i, num_props = 0;
for (i = 0; i < table->num_cols; i++)
{
if (!is_method( table, i )) num_props++;
}
return num_props;
}
static UINT count_result_properties( const struct view *view, UINT table_index )
{
const struct property *prop = view->proplist;
UINT count;
if (!prop) return count_properties( view->table[table_index] );
count = 1;
while ((prop = prop->next)) count++;
return count;
}
static HRESULT get_system_propval( const struct view *view, UINT table_index, UINT result_index, const WCHAR *name,
VARIANT *ret, CIMTYPE *type, LONG *flavor )
{
if (flavor) *flavor = WBEM_FLAVOR_ORIGIN_SYSTEM;
if (!wcsicmp( name, L"__CLASS" ))
{
if (ret)
{
V_VT( ret ) = VT_BSTR;
V_BSTR( ret ) = SysAllocString( view->table[table_index]->name );
}
if (type) *type = CIM_STRING;
return S_OK;
}
if (!wcsicmp( name, L"__GENUS" ))
{
if (ret)
{
V_VT( ret ) = VT_I4;
V_I4( ret ) = WBEM_GENUS_INSTANCE; /* FIXME */
}
if (type) *type = CIM_SINT32;
return S_OK;
}
if (!wcsicmp( name, L"__NAMESPACE" ))
{
if (ret)
{
V_VT( ret ) = VT_BSTR;
V_BSTR( ret ) = view->proplist ? NULL : build_namespace();
if (!V_BSTR( ret )) V_VT( ret ) = VT_NULL;
}
if (type) *type = CIM_STRING;
return S_OK;
}
if (!wcsicmp( name, L"__PATH" ))
{
if (ret)
{
V_VT( ret ) = VT_BSTR;
V_BSTR( ret ) = build_path( view, table_index, result_index, name );
if (!V_BSTR( ret )) V_VT( ret ) = VT_NULL;
}
if (type) *type = CIM_STRING;
return S_OK;
}
if (!wcsicmp( name, L"__PROPERTY_COUNT" ))
{
if (ret)
{
V_VT( ret ) = VT_I4;
V_I4( ret ) = count_result_properties( view, table_index );
}
if (type) *type = CIM_SINT32;
return S_OK;
}
if (!wcsicmp( name, L"__RELPATH" ))
{
if (ret)
{
V_VT( ret ) = VT_BSTR;
V_BSTR( ret ) = build_relpath( view, table_index, result_index, name );
if (!V_BSTR( ret )) V_VT( ret ) = VT_NULL;
}
if (type) *type = CIM_STRING;
return S_OK;
}
if (!wcsicmp( name, L"__SERVER" ))
{
if (ret)
{
V_VT( ret ) = VT_BSTR;
V_BSTR( ret ) = view->proplist ? NULL : build_servername();
if (!V_BSTR( ret )) V_VT( ret ) = VT_NULL;
}
if (type) *type = CIM_STRING;
return S_OK;
}
if (!wcsicmp( name, L"__DERIVATION" ))
{
if (ret)
{
SAFEARRAY *sa;
FIXME( "returning empty array for __DERIVATION\n" );
if (!(sa = SafeArrayCreateVector( VT_BSTR, 0, 0 ))) return E_OUTOFMEMORY;
V_VT( ret ) = VT_BSTR | VT_ARRAY;
V_ARRAY( ret ) = sa;
}
if (type) *type = CIM_STRING | CIM_FLAG_ARRAY;
return S_OK;
}
FIXME("system property %s not implemented\n", debugstr_w(name));
return WBEM_E_NOT_FOUND;
}
VARTYPE to_vartype( CIMTYPE type )
{
switch (type)
{
case CIM_BOOLEAN: return VT_BOOL;
case CIM_STRING:
case CIM_REFERENCE:
case CIM_DATETIME: return VT_BSTR;
case CIM_SINT8: return VT_I1;
case CIM_UINT8: return VT_UI1;
case CIM_SINT16: return VT_I2;
case CIM_UINT16:
case CIM_SINT32:
case CIM_UINT32: return VT_I4;
case CIM_SINT64: return VT_I8;
case CIM_UINT64: return VT_UI8;
case CIM_REAL32: return VT_R4;
default:
ERR("unhandled type %u\n", type);
break;
}
return 0;
}
SAFEARRAY *to_safearray( const struct array *array, CIMTYPE basetype )
{
SAFEARRAY *ret;
VARTYPE vartype = to_vartype( basetype );
LONG i;
if (!array || !(ret = SafeArrayCreateVector( vartype, 0, array->count ))) return NULL;
for (i = 0; i < array->count; i++)
{
void *ptr = (char *)array->ptr + i * array->elem_size;
if (vartype == VT_BSTR)
{
BSTR str = SysAllocString( *(const WCHAR **)ptr );
if (!str || SafeArrayPutElement( ret, &i, str ) != S_OK)
{
SysFreeString( str );
SafeArrayDestroy( ret );
return NULL;
}
SysFreeString( str );
}
else if (SafeArrayPutElement( ret, &i, ptr ) != S_OK)
{
SafeArrayDestroy( ret );
return NULL;
}
}
return ret;
}
void set_variant( VARTYPE type, LONGLONG val, void *val_ptr, VARIANT *ret )
{
if (type & VT_ARRAY)
{
V_VT( ret ) = type;
V_ARRAY( ret ) = val_ptr;
return;
}
switch (type)
{
case VT_BOOL:
V_BOOL( ret ) = val;
break;
case VT_BSTR:
V_BSTR( ret ) = val_ptr;
break;
case VT_I1:
V_I1( ret ) = val;
break;
case VT_UI1:
V_UI1( ret ) = val;
break;
case VT_I2:
V_I2( ret ) = val;
break;
case VT_UI2:
V_UI2( ret ) = val;
break;
case VT_I4:
V_I4( ret ) = val;
break;
case VT_UI4:
V_UI4( ret ) = val;
break;
case VT_NULL:
break;
case VT_R4:
V_R4( ret ) = *(FLOAT *)&val;
break;
default:
ERR("unhandled variant type %u\n", type);
return;
}
V_VT( ret ) = type;
}
static HRESULT map_view_index( const struct view *view, UINT index, UINT *table_index, UINT *result_index )
{
if (!view->table) return WBEM_E_NOT_FOUND;
switch (view->type)
{
case VIEW_TYPE_SELECT:
*table_index = 0;
*result_index = index;
break;
case VIEW_TYPE_ASSOCIATORS:
*table_index = *result_index = index;
break;
default:
ERR( "unhandled view type %u\n", view->type );
return WBEM_E_FAILED;
}
return S_OK;
}
struct table *get_view_table( const struct view *view, UINT index )
{
switch (view->type)
{
case VIEW_TYPE_SELECT:
return view->table[0];
case VIEW_TYPE_ASSOCIATORS:
return view->table[index];
default:
ERR( "unhandled view type %u\n", view->type );
return NULL;
}
}
HRESULT get_propval( const struct view *view, UINT index, const WCHAR *name, VARIANT *ret, CIMTYPE *type,
LONG *flavor )
{
HRESULT hr;
UINT column, row, table_index, result_index;
struct table *table;
VARTYPE vartype;
void *val_ptr = NULL;
LONGLONG val;
if ((hr = map_view_index( view, index, &table_index, &result_index )) != S_OK) return hr;
if (is_system_prop( name )) return get_system_propval( view, table_index, result_index, name, ret, type, flavor );
if (!view->result_count || !is_result_prop( view, name )) return WBEM_E_NOT_FOUND;
table = view->table[table_index];
hr = get_column_index( table, name, &column );
if (hr != S_OK || is_method( table, column )) return WBEM_E_NOT_FOUND;
row = view->result[result_index];
hr = get_value( table, row, column, &val );
if (hr != S_OK) return hr;
if (type) *type = table->columns[column].type & COL_TYPE_MASK;
if (flavor) *flavor = 0;
if (!ret) return S_OK;
vartype = to_vartype( table->columns[column].type & CIM_TYPE_MASK );
if (table->columns[column].type & CIM_FLAG_ARRAY)
{
CIMTYPE basetype = table->columns[column].type & CIM_TYPE_MASK;
val_ptr = to_safearray( (const struct array *)(INT_PTR)val, basetype );
if (!val_ptr) vartype = VT_NULL;
else vartype |= VT_ARRAY;
set_variant( vartype, val, val_ptr, ret );
return S_OK;
}
switch (table->columns[column].type & COL_TYPE_MASK)
{
case CIM_STRING:
case CIM_REFERENCE:
case CIM_DATETIME:
if (val)
{
vartype = VT_BSTR;
val_ptr = SysAllocString( (const WCHAR *)(INT_PTR)val );
}
else
vartype = VT_NULL;
break;
case CIM_SINT64:
vartype = VT_BSTR;
val_ptr = get_value_bstr( table, row, column );
break;
case CIM_UINT64:
vartype = VT_BSTR;
val_ptr = get_value_bstr( table, row, column );
break;
case CIM_BOOLEAN:
case CIM_SINT8:
case CIM_UINT8:
case CIM_SINT16:
case CIM_UINT16:
case CIM_SINT32:
case CIM_UINT32:
case CIM_REAL32:
break;
default:
ERR("unhandled column type %u\n", table->columns[column].type);
return WBEM_E_FAILED;
}
set_variant( vartype, val, val_ptr, ret );
return S_OK;
}
static CIMTYPE to_cimtype( VARTYPE type )
{
switch (type)
{
case VT_BOOL: return CIM_BOOLEAN;
case VT_BSTR: return CIM_STRING;
case VT_I1: return CIM_SINT8;
case VT_UI1: return CIM_UINT8;
case VT_I2: return CIM_SINT16;
case VT_UI2: return CIM_UINT16;
case VT_I4: return CIM_SINT32;
case VT_UI4: return CIM_UINT32;
case VT_I8: return CIM_SINT64;
case VT_UI8: return CIM_UINT64;
default:
ERR("unhandled type %u\n", type);
break;
}
return 0;
}
static struct array *to_array( VARIANT *var, CIMTYPE *type )
{
struct array *ret;
LONG bound, i;
VARTYPE vartype;
CIMTYPE basetype;
if (SafeArrayGetVartype( V_ARRAY( var ), &vartype ) != S_OK) return NULL;
if (!(basetype = to_cimtype( vartype ))) return NULL;
if (SafeArrayGetUBound( V_ARRAY( var ), 1, &bound ) != S_OK) return NULL;
if (!(ret = heap_alloc( sizeof(struct array) ))) return NULL;
ret->count = bound + 1;
ret->elem_size = get_type_size( basetype );
if (!(ret->ptr = heap_alloc_zero( ret->count * ret->elem_size )))
{
heap_free( ret );
return NULL;
}
for (i = 0; i < ret->count; i++)
{
void *ptr = (char *)ret->ptr + i * ret->elem_size;
if (vartype == VT_BSTR)
{
BSTR str;
if (SafeArrayGetElement( V_ARRAY( var ), &i, &str ) != S_OK)
{
destroy_array( ret, basetype );
return NULL;
}
*(WCHAR **)ptr = heap_strdupW( str );
SysFreeString( str );
if (!*(WCHAR **)ptr)
{
destroy_array( ret, basetype );
return NULL;
}
}
else if (SafeArrayGetElement( V_ARRAY( var ), &i, ptr ) != S_OK)
{
destroy_array( ret, basetype );
return NULL;
}
}
*type = basetype | CIM_FLAG_ARRAY;
return ret;
}
HRESULT to_longlong( VARIANT *var, LONGLONG *val, CIMTYPE *type )
{
if (!var)
{
*val = 0;
return S_OK;
}
if (V_VT( var ) & VT_ARRAY)
{
*val = (INT_PTR)to_array( var, type );
if (!*val) return E_OUTOFMEMORY;
return S_OK;
}
switch (V_VT( var ))
{
case VT_BOOL:
*val = V_BOOL( var );
*type = CIM_BOOLEAN;
break;
case VT_BSTR:
*val = (INT_PTR)heap_strdupW( V_BSTR( var ) );
if (!*val) return E_OUTOFMEMORY;
*type = CIM_STRING;
break;
case VT_I2:
*val = V_I2( var );
*type = CIM_SINT16;
break;
case VT_UI2:
*val = V_UI2( var );
*type = CIM_UINT16;
break;
case VT_I4:
*val = V_I4( var );
*type = CIM_SINT32;
break;
case VT_UI4:
*val = V_UI4( var );
*type = CIM_UINT32;
break;
case VT_NULL:
*val = 0;
break;
default:
ERR("unhandled type %u\n", V_VT( var ));
return WBEM_E_FAILED;
}
return S_OK;
}
HRESULT put_propval( const struct view *view, UINT index, const WCHAR *name, VARIANT *var, CIMTYPE type )
{
HRESULT hr;
UINT row, column, table_index, result_index;
struct table *table;
LONGLONG val;
if ((hr = map_view_index( view, index, &table_index, &result_index )) != S_OK) return hr;
table = view->table[table_index];
hr = get_column_index( table, name, &column );
if (hr != S_OK)
{
FIXME("no support for creating new properties\n");
return WBEM_E_FAILED;
}
if (is_method( table, column ) || !(table->columns[column].type & COL_FLAG_DYNAMIC))
return WBEM_E_FAILED;
hr = to_longlong( var, &val, &type );
if (hr != S_OK) return hr;
row = view->result[result_index];
return set_value( table, row, column, val, type );
}
HRESULT get_properties( const struct view *view, UINT index, LONG flags, SAFEARRAY **props )
{
static const WCHAR * const system_props[] =
{ L"__GENUS", L"__CLASS", L"__RELPATH", L"__PROPERTY_COUNT", L"__DERIVATION", L"__SERVER", L"__NAMESPACE",
L"__PATH" };
SAFEARRAY *sa;
BSTR str;
UINT i, table_index, result_index, count = 0;
struct table *table;
HRESULT hr;
LONG j = 0;
if ((hr = map_view_index( view, index, &table_index, &result_index )) != S_OK) return hr;
table = view->table[table_index];
if (!(flags & WBEM_FLAG_NONSYSTEM_ONLY)) count += ARRAY_SIZE(system_props);
if (!(flags & WBEM_FLAG_SYSTEM_ONLY))
{
for (i = 0; i < table->num_cols; i++)
{
if (!is_method( table, i ) && is_result_prop( view, table->columns[i].name )) count++;
}
}
if (!(sa = SafeArrayCreateVector( VT_BSTR, 0, count ))) return E_OUTOFMEMORY;
if (!(flags & WBEM_FLAG_NONSYSTEM_ONLY))
{
for (j = 0; j < ARRAY_SIZE(system_props); j++)
{
str = SysAllocString( system_props[j] );
if (!str || SafeArrayPutElement( sa, &j, str ) != S_OK)
{
SysFreeString( str );
SafeArrayDestroy( sa );
return E_OUTOFMEMORY;
}
SysFreeString( str );
}
}
if (!(flags & WBEM_FLAG_SYSTEM_ONLY))
{
for (i = 0; i < table->num_cols; i++)
{
if (is_method( table, i ) || !is_result_prop( view, table->columns[i].name )) continue;
str = SysAllocString( table->columns[i].name );
if (!str || SafeArrayPutElement( sa, &j, str ) != S_OK)
{
SysFreeString( str );
SafeArrayDestroy( sa );
return E_OUTOFMEMORY;
}
SysFreeString( str );
j++;
}
}
*props = sa;
return S_OK;
}
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