dlls/wbemprox/wbemlocator.c

   1 /*
   2  * Copyright 2009 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 "wine/unicode.h"
  31 #include "wbemprox_private.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(wbemprox);
  34
  35 typedef struct
  36 {
  37     IWbemLocator IWbemLocator_iface;
  38     LONG refs;
  39 } wbem_locator;
  40
  41 static inline wbem_locator *impl_from_IWbemLocator( IWbemLocator *iface )
  42 {
  43     return CONTAINING_RECORD(iface, wbem_locator, IWbemLocator_iface);
  44 }
  45
  46 static ULONG WINAPI wbem_locator_AddRef(
  47     IWbemLocator *iface )
  48 {
  49     wbem_locator *wl = impl_from_IWbemLocator( iface );
  50     return InterlockedIncrement( &wl->refs );
  51 }
  52
  53 static ULONG WINAPI wbem_locator_Release(
  54     IWbemLocator *iface )
  55 {
  56     wbem_locator *wl = impl_from_IWbemLocator( iface );
  57     LONG refs = InterlockedDecrement( &wl->refs );
  58     if (!refs)
  59     {
  60         TRACE("destroying %p\n", wl);
  61         heap_free( wl );
  62     }
  63     return refs;
  64 }
  65
  66 static HRESULT WINAPI wbem_locator_QueryInterface(
  67     IWbemLocator *iface,
  68     REFIID riid,
  69     void **ppvObject )
  70 {
  71     wbem_locator *This = impl_from_IWbemLocator( iface );
  72
  73     TRACE("%p %s %p\n", This, debugstr_guid( riid ), ppvObject );
  74
  75     if ( IsEqualGUID( riid, &IID_IWbemLocator ) ||
  76          IsEqualGUID( riid, &IID_IUnknown ) )
  77     {
  78         *ppvObject = iface;
  79     }
  80     else
  81     {
  82         FIXME("interface %s not implemented\n", debugstr_guid(riid));
  83         return E_NOINTERFACE;
  84     }
  85     IWbemLocator_AddRef( iface );
  86     return S_OK;
  87 }
  88
  89 static BOOL is_local_machine( const WCHAR *server )
  90 {
  91     static const WCHAR dotW[] = {'.',0};
  92     WCHAR buffer[MAX_COMPUTERNAME_LENGTH + 1];
  93     DWORD len = sizeof(buffer) / sizeof(buffer[0]);
  94
  95     if (!server || !strcmpW( server, dotW )) return TRUE;
  96     if (GetComputerNameW( buffer, &len ) && !strcmpiW( server, buffer )) return TRUE;
  97     return FALSE;
  98 }
  99
 100 static HRESULT parse_resource( const WCHAR *resource, WCHAR **server, WCHAR **namespace )
 101 {
 102     static const WCHAR rootW[] = {'R','O','O','T'};
 103     static const WCHAR cimv2W[] = {'C','I','M','V','2'};
 104     static const WCHAR defaultW[] = {'D','E','F','A','U','L','T'};
 105     HRESULT hr = WBEM_E_INVALID_NAMESPACE;
 106     const WCHAR *p, *q;
 107     unsigned int len;
 108
 109     *server = NULL;
 110     *namespace = NULL;
 111     p = q = resource;
 112     if (*p == '\\' || *p == '/')
 113     {
 114         p++;
 115         if (*p == '\\' || *p == '/') p++;
 116         if (!*p) return WBEM_E_INVALID_NAMESPACE;
 117         if (*p == '\\' || *p == '/') return WBEM_E_INVALID_PARAMETER;
 118         q = p + 1;
 119         while (*q && *q != '\\' && *q != '/') q++;
 120         if (!*q) return WBEM_E_INVALID_NAMESPACE;
 121         len = q - p;
 122         if (!(*server = heap_alloc( (len + 1) * sizeof(WCHAR) )))
 123         {
 124             hr = E_OUTOFMEMORY;
 125             goto done;
 126         }
 127         memcpy( *server, p, len * sizeof(WCHAR) );
 128         (*server)[len] = 0;
 129         q++;
 130     }
 131     if (!*q) goto done;
 132     p = q;
 133     while (*q && *q != '\\' && *q != '/') q++;
 134     len = q - p;
 135     if (len >= sizeof(rootW) / sizeof(rootW[0]) && memicmpW( rootW, p, len )) goto done;
 136     if (!*q)
 137     {
 138         hr = S_OK;
 139         goto done;
 140     }
 141     q++;
 142     len = strlenW( q );
 143     if ((len != sizeof(cimv2W) / sizeof(cimv2W[0]) || memicmpW( q, cimv2W, len )) &&
 144         (len != sizeof(defaultW) / sizeof(defaultW[0]) || memicmpW( q, defaultW, len )))
 145         goto done;
 146     if (!(*namespace = heap_alloc( (len + 1) * sizeof(WCHAR) ))) hr = E_OUTOFMEMORY;
 147     else
 148     {
 149         memcpy( *namespace, p, len * sizeof(WCHAR) );
 150         (*namespace)[len] = 0;
 151         hr = S_OK;
 152     }
 153
 154 done:
 155     if (hr != S_OK)
 156     {
 157         heap_free( *server );
 158         heap_free( *namespace );
 159     }
 160     return hr;
 161 }
 162
 163 static HRESULT WINAPI wbem_locator_ConnectServer(
 164     IWbemLocator *iface,
 165     const BSTR NetworkResource,
 166     const BSTR User,
 167     const BSTR Password,
 168     const BSTR Locale,
 169     LONG SecurityFlags,
 170     const BSTR Authority,
 171     IWbemContext *pCtx,
 172     IWbemServices **ppNamespace)
 173 {
 174     HRESULT hr;
 175     WCHAR *server, *namespace;
 176
 177     TRACE("%p, %s, %s, %s, %s, 0x%08x, %s, %p, %p)\n", iface, debugstr_w(NetworkResource), debugstr_w(User),
 178           debugstr_w(Password), debugstr_w(Locale), SecurityFlags, debugstr_w(Authority), pCtx, ppNamespace);
 179
 180     hr = parse_resource( NetworkResource, &server, &namespace );
 181     if (hr != S_OK) return hr;
 182
 183     if (!is_local_machine( server ))
 184     {
 185         FIXME("remote computer not supported\n");
 186         heap_free( server );
 187         heap_free( namespace );
 188         return WBEM_E_TRANSPORT_FAILURE;
 189     }
 190     if (User || Password || Authority)
 191         FIXME("authentication not supported\n");
 192     if (Locale)
 193         FIXME("specific locale not supported\n");
 194     if (SecurityFlags)
 195         FIXME("unsupported flags\n");
 196
 197     hr = WbemServices_create( namespace, (void **)ppNamespace );
 198     heap_free( namespace );
 199     heap_free( server );
 200     if (SUCCEEDED( hr ))
 201         return WBEM_NO_ERROR;
 202
 203     return WBEM_E_FAILED;
 204 }
 205
 206 static const IWbemLocatorVtbl wbem_locator_vtbl =
 207 {
 208     wbem_locator_QueryInterface,
 209     wbem_locator_AddRef,
 210     wbem_locator_Release,
 211     wbem_locator_ConnectServer
 212 };
 213
 214 HRESULT WbemLocator_create( LPVOID *ppObj )
 215 {
 216     wbem_locator *wl;
 217
 218     TRACE("(%p)\n", ppObj);
 219
 220     wl = heap_alloc( sizeof(*wl) );
 221     if (!wl) return E_OUTOFMEMORY;
 222
 223     wl->IWbemLocator_iface.lpVtbl = &wbem_locator_vtbl;
 224     wl->refs = 1;
 225
 226     *ppObj = &wl->IWbemLocator_iface;
 227
 228     TRACE("returning iface %p\n", *ppObj);
 229     return S_OK;
 230 }