reactos/dll/win32/wbemprox/security.c

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/*
* __SystemSecurity implementation
*
* Copyright 2014 Vincent Povirk 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 "config.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wbemcli.h"
#include "iads.h"
#include "wine/debug.h"
#include "wbemprox_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
static HRESULT to_byte_array( void *data, DWORD size, VARIANT *var )
{
SAFEARRAY *sa;
void *sadata;
HRESULT hr;
if (!(sa = SafeArrayCreateVector( VT_UI1, 0, size ))) return E_OUTOFMEMORY;
hr = SafeArrayAccessData( sa, &sadata );
if (SUCCEEDED(hr))
{
memcpy( sadata, data, size );
SafeArrayUnaccessData( sa );
}
else
{
SafeArrayDestroy( sa );
return hr;
}
set_variant( VT_UI1|VT_ARRAY, 0, sa, var );
return S_OK;
}
static HRESULT get_sd( SECURITY_DESCRIPTOR **sd, DWORD *size )
{
BYTE sid_admin_buffer[SECURITY_MAX_SID_SIZE];
SID *sid_admin = (SID*)sid_admin_buffer;
BYTE sid_network_buffer[SECURITY_MAX_SID_SIZE];
SID *sid_network = (SID*)sid_network_buffer;
BYTE sid_local_buffer[SECURITY_MAX_SID_SIZE];
SID *sid_local = (SID*)sid_local_buffer;
BYTE sid_users_buffer[SECURITY_MAX_SID_SIZE];
SID *sid_users = (SID*)sid_users_buffer;
BYTE acl_buffer[sizeof(ACL) + 4 * (sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD) + SECURITY_MAX_SID_SIZE)];
ACL *acl = (ACL*)acl_buffer;
DWORD sid_size;
SECURITY_DESCRIPTOR absolute_sd;
HRESULT hr = S_OK;
sid_size = sizeof(sid_admin_buffer);
CreateWellKnownSid( WinBuiltinAdministratorsSid, NULL, sid_admin, &sid_size );
sid_size = sizeof(sid_network_buffer);
CreateWellKnownSid( WinNetworkServiceSid, NULL, sid_network, &sid_size );
sid_size = sizeof(sid_local_buffer);
CreateWellKnownSid( WinLocalServiceSid, NULL, sid_local, &sid_size );
sid_size = sizeof(sid_users_buffer);
CreateWellKnownSid( WinAuthenticatedUserSid, NULL, sid_users, &sid_size );
InitializeAcl( acl, sizeof(acl_buffer), ACL_REVISION );
AddAccessAllowedAceEx( acl, ACL_REVISION, CONTAINER_INHERIT_ACE|INHERITED_ACE,
ADS_RIGHT_DS_CREATE_CHILD|ADS_RIGHT_DS_DELETE_CHILD|ADS_RIGHT_ACTRL_DS_LIST|ADS_RIGHT_DS_SELF|
ADS_RIGHT_DS_READ_PROP|ADS_RIGHT_DS_WRITE_PROP|READ_CONTROL|WRITE_DAC,
sid_admin );
AddAccessAllowedAceEx( acl, ACL_REVISION, CONTAINER_INHERIT_ACE|INHERITED_ACE,
ADS_RIGHT_DS_CREATE_CHILD|ADS_RIGHT_DS_DELETE_CHILD|ADS_RIGHT_DS_READ_PROP,
sid_network );
AddAccessAllowedAceEx( acl, ACL_REVISION, CONTAINER_INHERIT_ACE|INHERITED_ACE,
ADS_RIGHT_DS_CREATE_CHILD|ADS_RIGHT_DS_DELETE_CHILD|ADS_RIGHT_DS_READ_PROP,
sid_local );
AddAccessAllowedAceEx( acl, ACL_REVISION, CONTAINER_INHERIT_ACE|INHERITED_ACE,
ADS_RIGHT_DS_CREATE_CHILD|ADS_RIGHT_DS_DELETE_CHILD|ADS_RIGHT_DS_READ_PROP,
sid_users );
InitializeSecurityDescriptor( &absolute_sd, SECURITY_DESCRIPTOR_REVISION );
SetSecurityDescriptorOwner( &absolute_sd, sid_admin, TRUE );
SetSecurityDescriptorGroup( &absolute_sd, sid_admin, TRUE );
SetSecurityDescriptorDacl( &absolute_sd, TRUE, acl, TRUE );
*size = GetSecurityDescriptorLength( &absolute_sd );
*sd = HeapAlloc( GetProcessHeap(), 0, *size );
if (!*sd)
hr = E_OUTOFMEMORY;
if (SUCCEEDED(hr))
{
if (!MakeSelfRelativeSD(&absolute_sd, *sd, size)) {
HeapFree( GetProcessHeap(), 0, *sd );
*sd = NULL;
hr = E_FAIL;
}
}
return hr;
}
HRESULT security_get_sd( IWbemClassObject *obj, IWbemClassObject *in, IWbemClassObject **out )
{
VARIANT var_sd, retval;
IWbemClassObject *sig, *out_params = NULL;
HRESULT hr, ret;
SECURITY_DESCRIPTOR *sd;
DWORD sd_size;
TRACE("%p, %p\n", in, out);
hr = create_signature( class_systemsecurityW, method_getsdW, PARAM_OUT, &sig );
if (SUCCEEDED(hr))
{
hr = IWbemClassObject_SpawnInstance( sig, 0, &out_params );
IWbemClassObject_Release( sig );
}
if (SUCCEEDED(hr))
{
ret = get_sd( &sd, &sd_size );
if (SUCCEEDED(ret))
{
VariantInit( &var_sd );
hr = to_byte_array( sd, sd_size, &var_sd );
if (SUCCEEDED(hr))
hr = IWbemClassObject_Put( out_params, param_sdW, 0, &var_sd, CIM_UINT8|CIM_FLAG_ARRAY );
HeapFree( GetProcessHeap(), 0, sd );
VariantClear( &var_sd );
}
if (SUCCEEDED(hr))
{
set_variant( VT_UI4, ret, NULL, &retval );
hr = IWbemClassObject_Put( out_params, param_returnvalueW, 0, &retval, CIM_UINT32 );
}
if (SUCCEEDED(hr) && out)
{
*out = out_params;
IWbemClassObject_AddRef( out_params );
}
IWbemClassObject_Release( out_params );
}
return hr;
}
HRESULT security_set_sd( IWbemClassObject *obj, IWbemClassObject *in, IWbemClassObject **out )
{
VARIANT retval;
IWbemClassObject *sig, *out_params = NULL;
HRESULT hr;
FIXME("stub\n");
hr = create_signature( class_systemsecurityW, method_setsdW, PARAM_OUT, &sig );
if (SUCCEEDED(hr))
{
hr = IWbemClassObject_SpawnInstance( sig, 0, &out_params );
IWbemClassObject_Release( sig );
}
if (SUCCEEDED(hr))
{
set_variant( VT_UI4, S_OK, NULL, &retval );
hr = IWbemClassObject_Put( out_params, param_returnvalueW, 0, &retval, CIM_UINT32 );
if (SUCCEEDED(hr) && out)
{
*out = out_params;
IWbemClassObject_AddRef( out_params );
}
IWbemClassObject_Release( out_params );
}
return hr;
}