dll/win32/setupapi/rpc.c

   1 /*
   2  * RPC support routines
   3  *
   4  * Copyright 2005 Eric Kohl
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "setupapi_private.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
  24
  25 static RPC_BINDING_HANDLE LocalBindingHandle = NULL;
  26 static HSTRING_TABLE LocalStringTable = NULL;
  27
  28
  29 RPC_STATUS
  30 PnpBindRpc(LPCWSTR pszMachine,
  31            RPC_BINDING_HANDLE* BindingHandle)
  32 {
  33     PWSTR pszStringBinding = NULL;
  34     RPC_STATUS Status;
  35
  36     Status = RpcStringBindingComposeW(NULL,
  37                                       L"ncacn_np",
  38                                       (LPWSTR)pszMachine,
  39                                       L"\\pipe\\umpnpmgr",
  40                                       NULL,
  41                                       &pszStringBinding);
  42     if (Status != RPC_S_OK)
  43         return Status;
  44
  45     Status = RpcBindingFromStringBindingW(pszStringBinding,
  46                                           BindingHandle);
  47
  48     RpcStringFreeW(&pszStringBinding);
  49
  50     return Status;
  51 }
  52
  53
  54 RPC_STATUS
  55 PnpUnbindRpc(RPC_BINDING_HANDLE *BindingHandle)
  56 {
  57     if (BindingHandle != NULL)
  58     {
  59         RpcBindingFree(*BindingHandle);
  60         *BindingHandle = NULL;
  61     }
  62
  63     return RPC_S_OK;
  64 }
  65
  66
  67 BOOL
  68 PnpGetLocalHandles(RPC_BINDING_HANDLE *BindingHandle,
  69                    HSTRING_TABLE *StringTable)
  70 {
  71     if (LocalBindingHandle != NULL)
  72     {
  73         if (BindingHandle != NULL)
  74             *BindingHandle = LocalBindingHandle;
  75
  76         if (StringTable != NULL)
  77             *StringTable = LocalStringTable;
  78
  79         return TRUE;
  80     }
  81
  82     LocalStringTable = StringTableInitialize();
  83     if (LocalStringTable == NULL)
  84         return FALSE;
  85
  86     if (PnpBindRpc(NULL, &LocalBindingHandle) != RPC_S_OK)
  87     {
  88         StringTableDestroy(LocalStringTable);
  89         return FALSE;
  90     }
  91
  92     StringTableAddString(LocalStringTable, L"PLT", 1);
  93
  94     if (BindingHandle != NULL)
  95         *BindingHandle = LocalBindingHandle;
  96
  97     if (StringTable != NULL)
  98         *StringTable = LocalStringTable;
  99
 100     return TRUE;
 101 }
 102
 103
 104 RPC_STATUS
 105 PnpUnbindLocalBindingHandle(VOID)
 106 {
 107     StringTableDestroy(LocalStringTable);
 108     LocalStringTable = NULL;
 109     return PnpUnbindRpc(&LocalBindingHandle);
 110 }
 111
 112
 113 void __RPC_FAR * __RPC_USER
 114 midl_user_allocate(SIZE_T len)
 115 {
 116     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 117 }
 118
 119
 120 void __RPC_USER
 121 midl_user_free(void __RPC_FAR * ptr)
 122 {
 123     HeapFree(GetProcessHeap(), 0, ptr);
 124 }
 125
 126 /* EOF */