security.c 6.31 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122
/*
 * __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))
    {
123 124 125
        if (!MakeSelfRelativeSD(&absolute_sd, *sd, size)) {
            HeapFree( GetProcessHeap(), 0, *sd );
	    *sd = NULL;
126
            hr = E_FAIL;
127
        }
128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185
    }

    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;
}
186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220


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;
}