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1290 lines
33 KiB
1290 lines
33 KiB
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1997 - 2001.
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//
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// File: R A S C O N O B . C P P
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//
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// Contents: Implements the base class used to implement the Dialup,
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// Direct, and Vpn connection objects. Also includes
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// RAS-related utility functions used only within netman.exe.
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//
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// Notes:
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//
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// Author: shaunco 23 Sep 1997
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//
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//----------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#include "nmbase.h"
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#include "nccom.h"
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#include "ncperms.h"
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#include "ncras.h"
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#include "rasconob.h"
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#include <raserror.h>
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#include "gpnla.h"
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extern CGroupPolicyNetworkLocationAwareness* g_pGPNLA;
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//+---------------------------------------------------------------------------
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//
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// Function: HrRasConnectionNameFromGuid
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//
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// Purpose: Exported API used by iphlpapi et. al. to get the connection
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// of a RAS connection given its GUID.
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//
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// Arguments:
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// guid [in] The guid id representing the connection.
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// pszwName [out] Pointer to a buffer to store the name.
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// pcchMax [inout] On input, the length, in characters, of the buffer
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// including the null terminator. On output, the
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// length of the string including the null terminator
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// (if it was written) or the length of the buffer
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// required.
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//
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// Returns: HRESULT_FROM_WIN32(ERROR_NOT_FOUND) if the entry was not found.
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// HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER)
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// S_OK
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//
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// Author: shaunco 23 Sep 1998
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//
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// Notes:
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//
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EXTERN_C
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HRESULT
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WINAPI
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HrRasConnectionNameFromGuid (
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IN REFGUID guid,
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OUT PWSTR pszwName,
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IN OUT DWORD* pcchMax)
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{
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Assert (pszwName);
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Assert (pcchMax);
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// Initialize the output parameter.
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//
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*pszwName = NULL;
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// We now need to enumerate all entries in this phonebook and
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// find our details record with the matching guidId.
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//
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RASENUMENTRYDETAILS* aRasEntryDetails;
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DWORD cRasEntryDetails;
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HRESULT hr;
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hr = HrRasEnumAllEntriesWithDetails (
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NULL,
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&aRasEntryDetails,
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&cRasEntryDetails);
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if (SUCCEEDED(hr))
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{
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RASENUMENTRYDETAILS* pDetails;
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// Assume we don't find the entry.
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//
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hr = HRESULT_FROM_WIN32 (ERROR_NOT_FOUND);
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for (DWORD i = 0; i < cRasEntryDetails; i++)
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{
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pDetails = &aRasEntryDetails[i];
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if (pDetails->guidId == guid)
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{
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// Only copy the string if the caller has enough room in
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// the output buffer.
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//
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hr = HRESULT_FROM_WIN32 (ERROR_INSUFFICIENT_BUFFER);
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DWORD cchRequired = wcslen(pDetails->szEntryName) + 1;
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if (cchRequired <= *pcchMax)
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{
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wcscpy (pszwName, pDetails->szEntryName);
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hr = S_OK;
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}
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*pcchMax = cchRequired;
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break;
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}
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}
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MemFree (aRasEntryDetails);
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}
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else if (HRESULT_FROM_WIN32(ERROR_CANNOT_OPEN_PHONEBOOK) == hr)
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{
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hr = HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
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}
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TraceError ("HrRasConnectionNameFromGuid", hr);
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return hr;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CRasConnectionBase::CacheProperties
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//
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// Purpose:
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//
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// Arguments:
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//
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// Returns: nothing.
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//
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// Author: shaunco 2 Feb 1998
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//
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// Notes:
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//
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VOID
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CRasConnectionBase::CacheProperties (
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const RASENUMENTRYDETAILS* pDetails)
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{
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Assert (pDetails);
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AssertSz(pDetails->dwSize >= sizeof(RASENUMENTRYDETAILS), "RASENUMENTRYDETAILS too small");
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m_fEntryPropertiesCached = TRUE;
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m_lRasEntryModifiedVersionEra = g_lRasEntryModifiedVersionEra;
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m_guidId = pDetails->guidId;
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SetEntryName (pDetails->szEntryName);
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m_fForAllUsers = !!(pDetails->dwFlags & REN_AllUsers);
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m_fShowMonitorIconInTaskBar = pDetails->fShowMonitorIconInTaskBar;
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m_strDeviceName = pDetails->szDeviceName;
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m_dwFlagsPriv = pDetails->dwFlagsPriv;
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m_strPhoneNumber = pDetails->szPhoneNumber;
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TraceTag(ttidWanCon, "PhoneNumber: %S", m_strPhoneNumber);
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m_fBranded = (RASET_Internet == pDetails->dwType);
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TraceTag (ttidWanCon, "rdt:0x%08x, dwType:0x%08x",
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pDetails->rdt,
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pDetails->dwType);
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switch (LOWORD(pDetails->rdt))
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{
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case RDT_PPPoE:
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m_MediaType = NCM_PPPOE;
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break;
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case RDT_Modem:
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case RDT_X25:
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m_MediaType = NCM_PHONE;
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break;
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case RDT_Isdn:
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m_MediaType = NCM_ISDN;
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break;
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case RDT_Serial:
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case RDT_FrameRelay:
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case RDT_Atm:
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case RDT_Sonet:
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case RDT_Sw56:
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m_MediaType = NCM_PHONE;
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break;
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case RDT_Tunnel_Pptp:
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case RDT_Tunnel_L2tp:
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m_MediaType = NCM_TUNNEL;
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break;
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case RDT_Irda:
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case RDT_Parallel:
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m_MediaType = NCM_DIRECT;
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break;
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case RDT_Other:
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default:
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if (RASET_Vpn == pDetails->dwType)
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{
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m_MediaType = NCM_TUNNEL;
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}
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else if (RASET_Direct == pDetails->dwType)
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{
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m_MediaType = NCM_DIRECT;
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}
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else
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{
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m_MediaType = NCM_PHONE;
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}
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break;
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}
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if (pDetails->rdt & RDT_Tunnel)
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{
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m_MediaType = NCM_TUNNEL;
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}
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else if (pDetails->rdt & (RDT_Direct | RDT_Null_Modem))
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{
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m_MediaType = NCM_DIRECT;
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}
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CRasConnectionBase::FAllowRemoval
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//
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// Purpose: Returns TRUE if the connection is in a state where we
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// can validly remove it.
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//
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// Arguments:
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// phrReason [out] If FALSE is returned, this is the reason. It is
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// either E_ACCESSDENIED or E_UNEXPECTED.
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//
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// Returns: TRUE or FALSE.
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//
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// Author: shaunco 17 Jul 1998
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//
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// Notes:
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//
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BOOL
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CRasConnectionBase::FAllowRemoval (
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HRESULT* phrReason)
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{
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Assert (phrReason);
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Assert (m_fEntryPropertiesCached);
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// If this connection is for all users, the user must be
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// an administrator or power user.
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//
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if (m_fForAllUsers && !FIsUserAdmin())
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{
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*phrReason = E_ACCESSDENIED;
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return FALSE;
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}
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// $$NOTE (jeffspr) -- moved the test for connection state to the
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// delete function because we don't want it to affect our loading
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// of characteristics
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//
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// If we passed all tests above, we're okay to remove.
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//
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*phrReason = S_OK;
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return TRUE;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CRasConnectionBase::HrGetCharacteristics
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//
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// Purpose: Get the characteristics of the connection.
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//
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// Arguments:
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// pdwFlags [out]
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//
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// Returns: S_OK or an error code
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//
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// Author: shaunco 17 Jul 1998
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//
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// Notes:
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//
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HRESULT
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CRasConnectionBase::HrGetCharacteristics (
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DWORD* pdwFlags)
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{
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Assert (pdwFlags);
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DWORD dwFlags = NCCF_OUTGOING_ONLY;
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HRESULT hr = HrEnsureEntryPropertiesCached ();
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if (SUCCEEDED(hr))
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{
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if (FIsBranded ())
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{
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dwFlags |= NCCF_BRANDED;
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}
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else
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{
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dwFlags |= (NCCF_ALLOW_RENAME | NCCF_ALLOW_DUPLICATION);
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}
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if (m_fForAllUsers)
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{
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dwFlags |= NCCF_ALL_USERS;
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}
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if (m_dwFlagsPriv & REED_F_Default)
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{
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dwFlags |= NCCF_DEFAULT;
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}
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HRESULT hrReason;
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if (FAllowRemoval (&hrReason))
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{
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dwFlags |= NCCF_ALLOW_REMOVAL;
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}
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if (FShowIcon ())
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{
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dwFlags |= NCCF_SHOW_ICON;
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}
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if (S_OK == HrEnsureHNetPropertiesCached())
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{
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if (m_HNetProperties.fIcsPublic)
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{
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dwFlags |= NCCF_SHARED;
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}
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BOOL fIsFirewalled = FALSE;
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hr = HrIsConnectionFirewalled(&fIsFirewalled);
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if (fIsFirewalled)
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{
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dwFlags |= NCCF_FIREWALLED;
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}
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}
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}
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*pdwFlags = dwFlags;
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TraceError ("CRasConnectionBase::HrGetCharacteristics", hr);
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return hr;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CRasConnectionBase::HrGetStatus
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//
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// Purpose: Get the stauts of the connection.
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//
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// Arguments:
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// pStatus [out] NETCON_STATUS
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//
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// Returns: S_OK or an error code
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//
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// Author: shaunco 17 Jul 1998
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//
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// Notes:
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//
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HRESULT
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CRasConnectionBase::HrGetStatus (
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NETCON_STATUS* pStatus)
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{
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Assert (pStatus);
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// Initialize output parameters.
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//
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*pStatus = NCS_DISCONNECTED;
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// Find the active RAS connection corresponding to this object if
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// it exists.
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//
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HRASCONN hRasConn;
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HRESULT hr = HrFindRasConn (&hRasConn, NULL);
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if (S_OK == hr)
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{
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hr = HrRasGetNetconStatusFromRasConnectStatus (
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hRasConn, pStatus);
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// When the connection becomes disconnected between HrFindRas
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// and HrRasGet calls above, ERROR_INVALID_HANLDE is returned
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// this simply means that the connection has been disconnected.
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//
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if (HRESULT_FROM_WIN32(ERROR_INVALID_HANDLE) == hr)
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{
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Assert (NCS_DISCONNECTED == *pStatus);
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hr = S_OK;
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}
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}
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else if (S_FALSE == hr)
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{
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hr = S_OK;
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if (!PszwDeviceName())
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{
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*pStatus = NCS_HARDWARE_NOT_PRESENT;
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}
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// NCS_HARDWARE_DISABLED ?
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// NCS_HARDWARE_MALFUNCTION ?
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}
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TraceError ("CRasConnectionBase::HrGetStatus", hr);
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return hr;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CRasConnectionBase::HrEnsureEntryPropertiesCached
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//
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// Purpose: Ensures that the member's corresponding to entry properties
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// are cached by calling RasGetEntryProperties if needed.
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//
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// Arguments:
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// (none)
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//
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// Returns: S_OK or an error code.
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//
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// Author: shaunco 17 Dec 1997
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//
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// Notes:
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//
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HRESULT
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CRasConnectionBase::HrEnsureEntryPropertiesCached ()
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{
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HRESULT hr = S_OK;
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|
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// If we're not yet cached, or the cache is possibly out of date, we
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// need to update ourselves. g_lRasEntryModifiedVersionEra is the global
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// version indicator for RAS phonebook entry modifications. Our local
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// version indicator is set in CacheProperties.
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//
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if (!m_fEntryPropertiesCached ||
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(m_lRasEntryModifiedVersionEra != g_lRasEntryModifiedVersionEra))
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{
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// We now need to enumerate all entries in this phonebook and
|
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// find our details record with the matching guidId.
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//
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RASENUMENTRYDETAILS* aRasEntryDetails;
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DWORD cRasEntryDetails;
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// Impersonate the client.
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//
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HRESULT hrT = CoImpersonateClient ();
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TraceHr (ttidError, FAL, hrT, FALSE, "CoImpersonateClient");
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// We need to continue if we're called in-proc (ie. if RPC_E_CALL_COMPLETE is returned).
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if (SUCCEEDED(hrT) || (RPC_E_CALL_COMPLETE == hrT))
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{
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hr = HrRasEnumAllEntriesWithDetails (
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PszwPbkFile(),
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&aRasEntryDetails,
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&cRasEntryDetails);
|
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}
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|
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if (SUCCEEDED(hrT))
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{
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hrT = CoRevertToSelf ();
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TraceHr (ttidError, FAL, hrT, FALSE, "CoRevertToSelf");
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}
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|
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if (SUCCEEDED(hr))
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{
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BOOL fNoGuidYet = (m_guidId == GUID_NULL);
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|
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RASENUMENTRYDETAILS* pDetails;
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|
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// Assume we don't find the entry.
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//
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hr = HRESULT_FROM_WIN32 (ERROR_NOT_FOUND);
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|
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for (DWORD i = 0; i < cRasEntryDetails; i++)
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{
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pDetails = &aRasEntryDetails[i];
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|
|
|
if (pDetails->guidId == m_guidId)
|
|
{
|
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CacheProperties (pDetails);
|
|
hr = S_OK;
|
|
|
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TraceTag (ttidWanCon,
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"HrRasEnumAllEntriesWithDetails found entry "
|
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"via guid (%S)",
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PszwEntryName());
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break;
|
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}
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else if (fNoGuidYet &&
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!lstrcmpW (PszwEntryName(), pDetails->szEntryName))
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{
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CacheProperties (pDetails);
|
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hr = S_OK;
|
|
|
|
TraceTag (ttidWanCon,
|
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"HrRasEnumAllEntriesWithDetails found entry "
|
|
"via entryname (%S)",
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PszwEntryName());
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break;
|
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}
|
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}
|
|
|
|
MemFree (aRasEntryDetails);
|
|
}
|
|
else if (HRESULT_FROM_WIN32(ERROR_CANNOT_OPEN_PHONEBOOK) == hr)
|
|
{
|
|
hr = HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
|
|
}
|
|
}
|
|
TraceError ("CRasConnectionBase::HrEnsureEntryPropertiesCached", hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrFindRasConn
|
|
//
|
|
// Purpose: Searches for the active RAS connection that corresponds to
|
|
// this phone book and entry.
|
|
//
|
|
// Arguments:
|
|
// phRasConn [out] The returned handle to the RAS connection if it
|
|
// was found. NULL otherwise.
|
|
// pRasConn [out] Optional pointer to returned RASCONN structure
|
|
// if found.
|
|
//
|
|
// Returns: S_OK if found, S_FALSE if not, or an error code.
|
|
//
|
|
// Author: shaunco 29 Sep 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrFindRasConn (
|
|
OUT HRASCONN* phRasConn,
|
|
OUT RASCONN* pRasConn OPTIONAL)
|
|
{
|
|
Assert (phRasConn);
|
|
Assert (m_fInitialized);
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
// Initialize the output parameter.
|
|
//
|
|
*phRasConn = NULL;
|
|
|
|
// We need m_guidId to be valid. If it is GUID_NULL, it means
|
|
// we have an entry name with with to look it up.
|
|
//
|
|
if (GUID_NULL == m_guidId)
|
|
{
|
|
hr = HrEnsureEntryPropertiesCached ();
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = HrFindRasConnFromGuidId (&m_guidId, phRasConn, pRasConn);
|
|
|
|
}
|
|
|
|
TraceError ("CRasConnectionBase::HrFindRasConn",
|
|
(S_FALSE == hr) ? S_OK : hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrLockAndRenameEntry
|
|
//
|
|
// Purpose: Renames the phone book entry and updates our entry name
|
|
// member atomically.
|
|
//
|
|
// Arguments:
|
|
// pszwNewName [in] The new name.
|
|
// pObj [in] Used to Lock the operation.
|
|
//
|
|
// Returns: S_OK or an error code.
|
|
//
|
|
// Author: shaunco 23 Sep 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrLockAndRenameEntry (
|
|
PCWSTR pszwNewName,
|
|
CComObjectRootEx <CComMultiThreadModel>* pObj)
|
|
{
|
|
// Make sure the name is valid in the same phone book.
|
|
//
|
|
DWORD dwErr = RasValidateEntryName (PszwPbkFile (), pszwNewName);
|
|
|
|
HRESULT hr = HRESULT_FROM_WIN32 (dwErr);
|
|
TraceHr (ttidError, FAL, hr,
|
|
HRESULT_FROM_WIN32(ERROR_ALREADY_EXISTS) == hr,
|
|
"RasValidateEntryName", hr);
|
|
|
|
// We can ignore ERROR_ALREADY_EXISTS as it will happen when a user
|
|
// tries to change the case of the entry name.
|
|
//
|
|
if (SUCCEEDED(hr) || (HRESULT_FROM_WIN32(ERROR_ALREADY_EXISTS) == hr))
|
|
{
|
|
hr = HrEnsureEntryPropertiesCached ();
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
// Lock the object and rename it.
|
|
//
|
|
CExceptionSafeComObjectLock EsLock (pObj);
|
|
|
|
dwErr = RasRenameEntry (
|
|
PszwPbkFile (),
|
|
PszwEntryName (),
|
|
pszwNewName);
|
|
|
|
hr = HRESULT_FROM_WIN32 (dwErr);
|
|
TraceHr (ttidError, FAL, hr, FALSE, "RasRenameEntry");
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
SetEntryName (pszwNewName);
|
|
}
|
|
}
|
|
}
|
|
|
|
TraceHr (ttidError, FAL, hr, FALSE,
|
|
"CRasConnectionBase::HrLockAndRenameEntry");
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrGetRasConnectionInfo
|
|
//
|
|
// Purpose: Implementation of INetRasConnection::GetRasConnectionInfo
|
|
//
|
|
// Arguments:
|
|
// pRasConInfo [out] pointer to returned info
|
|
//
|
|
// Returns: S_OK or E_OUTOFMEMORY.
|
|
//
|
|
// Author: shaunco 20 Oct 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrGetRasConnectionInfo (
|
|
RASCON_INFO* pRasConInfo)
|
|
{
|
|
Assert (m_fInitialized);
|
|
|
|
HRESULT hr;
|
|
|
|
// Validate parameters.
|
|
//
|
|
if (!pRasConInfo)
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else
|
|
{
|
|
hr = HrEnsureEntryPropertiesCached ();
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
ZeroMemory (pRasConInfo, sizeof (*pRasConInfo));
|
|
|
|
hr = S_OK;
|
|
|
|
HRESULT hrT;
|
|
|
|
hrT = HrCoTaskMemAllocAndDupSz (PszwPbkFile(),
|
|
&pRasConInfo->pszwPbkFile);
|
|
if (FAILED(hrT))
|
|
{
|
|
hr = hrT;
|
|
}
|
|
|
|
hrT = HrCoTaskMemAllocAndDupSz (PszwEntryName(),
|
|
&pRasConInfo->pszwEntryName);
|
|
if (FAILED(hrT))
|
|
{
|
|
hr = hrT;
|
|
}
|
|
|
|
pRasConInfo->guidId = m_guidId;
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
RciFree (pRasConInfo);
|
|
|
|
AssertSz (!pRasConInfo->pszwPbkFile && !pRasConInfo->pszwEntryName,
|
|
"RciFree should be zeroing the structure!");
|
|
}
|
|
}
|
|
}
|
|
TraceError ("CRasConnectionBase::HrGetRasConnectionInfo", hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrSetRasConnectionInfo
|
|
//
|
|
// Purpose: Implementation of INetRasConnection::SetRasConnectionInfo
|
|
//
|
|
// Arguments:
|
|
// pRasConInfo [in] info to set
|
|
//
|
|
// Returns: S_OK
|
|
//
|
|
// Author: shaunco 20 Oct 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrSetRasConnectionInfo (
|
|
const RASCON_INFO* pRasConInfo)
|
|
{
|
|
Assert (!m_fInitialized);
|
|
|
|
HRESULT hr = S_OK;
|
|
|
|
// Validate parameters.
|
|
//
|
|
if (!pRasConInfo)
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else if (!pRasConInfo->pszwPbkFile ||
|
|
(0 == lstrlenW (pRasConInfo->pszwPbkFile)) ||
|
|
!pRasConInfo->pszwEntryName ||
|
|
(0 == lstrlenW (pRasConInfo->pszwEntryName)))
|
|
{
|
|
hr = E_INVALIDARG;
|
|
}
|
|
else
|
|
{
|
|
SetPbkFile (pRasConInfo->pszwPbkFile);
|
|
SetEntryName (pRasConInfo->pszwEntryName);
|
|
m_guidId = pRasConInfo->guidId;
|
|
|
|
// We are now a full-fledged object.
|
|
//
|
|
m_fInitialized = TRUE;
|
|
}
|
|
TraceError ("CRasConnectionBase::HrSetRasConnectionInfo", hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrGetRasConnectionHandle
|
|
//
|
|
// Purpose: Implementation of INetRasConnection::HrGetRasConnectionHandle
|
|
//
|
|
// Arguments:
|
|
// phRasConn [out] pointer to the returned RAS connection handle
|
|
//
|
|
// Returns: S_OK if connected, S_FALSE if not, error code otherwise.
|
|
//
|
|
// Author: CWill 09 Dec 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrGetRasConnectionHandle (
|
|
HRASCONN* phRasConn)
|
|
{
|
|
HRESULT hr;
|
|
|
|
// Validate parameters.
|
|
//
|
|
if (!phRasConn)
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else if (!m_fInitialized)
|
|
{
|
|
hr = E_UNEXPECTED;
|
|
}
|
|
else
|
|
{
|
|
// Initialize the output parameter.
|
|
//
|
|
*phRasConn = 0;
|
|
|
|
hr = HrFindRasConn (phRasConn, NULL);
|
|
}
|
|
|
|
TraceError ("CRasConnectionBase::HrGetRasConnectionHandle",
|
|
(S_FALSE == hr) ? S_OK : hr);
|
|
return hr;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
// IPersistNetConnection -
|
|
//
|
|
// For our persistent (across session) data, we choose to store only the
|
|
// the phonebook name and the guid Id of the RAS entry. We explicitly don't
|
|
// store the entry name because it can be changed externally. If it were
|
|
// we would have an orhpaned connection.
|
|
//
|
|
// When loading the connection from the persistent store, we need to
|
|
// enumerate all of the entries in the given phonebook looking for the one
|
|
// with the matching guid Id. Once found, the connection can successfully
|
|
// be loaded.
|
|
//
|
|
|
|
// Lead and trail characters for our persistent memory form.
|
|
//
|
|
static const WCHAR c_chwLead = 0x14;
|
|
static const WCHAR c_chwTrail = 0x05;
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrPersistGetSizeMax
|
|
//
|
|
// Purpose: Implementation of IPersistNetConnection::GetSizeMax
|
|
//
|
|
// Arguments:
|
|
// pcbSize []
|
|
//
|
|
// Returns: S_OK or an error code
|
|
//
|
|
// Author: shaunco 4 Nov 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrPersistGetSizeMax (
|
|
ULONG* pcbSize)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
// Validate parameters.
|
|
//
|
|
if (!pcbSize)
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else if (!m_fInitialized)
|
|
{
|
|
hr = E_UNEXPECTED;
|
|
}
|
|
else
|
|
{
|
|
// Size the buffer for the following form:
|
|
// +--------------------------------------------+
|
|
// |0x14<phonebook file>\0<guid Id>\0<users>0x05|
|
|
// +--------------------------------------------+
|
|
//
|
|
*pcbSize = sizeof (c_chwLead) +
|
|
CbOfSzAndTerm (PszwPbkFile()) +
|
|
sizeof (m_guidId) +
|
|
sizeof (m_fForAllUsers) +
|
|
sizeof (c_chwTrail);
|
|
}
|
|
TraceError ("CRasConnectionBase::HrPersistGetSizeMax", hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrPersistLoad
|
|
//
|
|
// Purpose: Implementation of IPersistNetConnection::Load
|
|
//
|
|
// Arguments:
|
|
// pbBuf []
|
|
// cbSize []
|
|
//
|
|
// Returns: S_OK or an error code
|
|
//
|
|
// Author: shaunco 4 Nov 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrPersistLoad (
|
|
const BYTE* pbBuf,
|
|
ULONG cbSize)
|
|
{
|
|
TraceFileFunc(ttidWanCon);
|
|
// The theoretical minimum size for the buffer is:
|
|
// (4 characters for a minimal path like 'c:\a')
|
|
//
|
|
const ULONG c_cbSizeMin = sizeof (c_chwLead) +
|
|
(4 + 1) * sizeof(WCHAR) +
|
|
sizeof (m_guidId) +
|
|
sizeof (m_fForAllUsers) +
|
|
sizeof (c_chwTrail);
|
|
|
|
HRESULT hr = E_INVALIDARG;
|
|
|
|
// Validate parameters.
|
|
//
|
|
if (!pbBuf)
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else if (cbSize < c_cbSizeMin)
|
|
{
|
|
hr = E_INVALIDARG;
|
|
}
|
|
// We can only accept one call on this method and only if we're not
|
|
// already initialized.
|
|
//
|
|
else if (m_fInitialized)
|
|
{
|
|
hr = E_UNEXPECTED;
|
|
}
|
|
else
|
|
{
|
|
// The buffer *should* look like this:
|
|
// +--------------------------------------------+
|
|
// |0x14<phonebook file>\0<guid Id>\0<users>0x05|
|
|
// +--------------------------------------------+
|
|
//
|
|
const WCHAR* pchw = reinterpret_cast<const WCHAR*>(pbBuf);
|
|
const WCHAR* pchwMax;
|
|
PCWSTR pszwPhonebook;
|
|
GUID guidId;
|
|
const GUID* pguidId;
|
|
BOOL fForAllUsers;
|
|
const BOOL* pfForAllUsers;
|
|
|
|
// The last valid pointer for the embedded strings.
|
|
//
|
|
pchwMax = reinterpret_cast<const WCHAR*>(pbBuf + cbSize
|
|
- (sizeof (m_guidId) +
|
|
sizeof (m_fForAllUsers) +
|
|
sizeof (c_chwTrail)));
|
|
|
|
if (c_chwLead != *pchw)
|
|
{
|
|
goto finished;
|
|
}
|
|
|
|
// Skip past our lead byte.
|
|
//
|
|
pchw++;
|
|
|
|
// Get m_strPbkFile. Search for the terminating null and make sure
|
|
// we find it before the end of the buffer. Using lstrlen to skip
|
|
// the string can result in an an AV in the event the string is
|
|
// not actually null-terminated.
|
|
//
|
|
for (pszwPhonebook = pchw; ; pchw++)
|
|
{
|
|
if (pchw >= pchwMax)
|
|
{
|
|
goto finished;
|
|
}
|
|
if (0 == *pchw)
|
|
{
|
|
pchw++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Get m_guidId
|
|
//
|
|
pguidId = reinterpret_cast<const GUID*>(pchw);
|
|
CopyMemory(&guidId, pguidId, sizeof(guidId));
|
|
pguidId++;
|
|
|
|
// Get m_fForAllUsers
|
|
//
|
|
pfForAllUsers = reinterpret_cast<const BOOL*>(pguidId);
|
|
CopyMemory(&fForAllUsers, pfForAllUsers, sizeof(fForAllUsers));
|
|
pfForAllUsers++;
|
|
|
|
// Check our trail byte.
|
|
//
|
|
pchw = reinterpret_cast<const WCHAR*>(pfForAllUsers);
|
|
if (c_chwTrail != *pchw)
|
|
{
|
|
goto finished;
|
|
}
|
|
|
|
TraceTag (ttidWanCon, "HrPersistLoad for %S", pszwPhonebook);
|
|
|
|
SetPbkFile (pszwPhonebook);
|
|
m_fForAllUsers = fForAllUsers;
|
|
m_guidId = guidId;
|
|
|
|
// We are now a full-fledged object.
|
|
//
|
|
m_fInitialized = TRUE;
|
|
hr = S_OK;
|
|
|
|
finished:
|
|
;
|
|
}
|
|
TraceError ("CRasConnectionBase::HrPersistLoad", hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrPersistSave
|
|
//
|
|
// Purpose: Implementation of IPersistNetConnection::Save
|
|
//
|
|
// Arguments:
|
|
// pbBuf []
|
|
// cbSize []
|
|
//
|
|
// Returns: S_OK or an error code
|
|
//
|
|
// Author: shaunco 4 Nov 1997
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrPersistSave (
|
|
BYTE* pbBuf,
|
|
ULONG cbSize)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
// Validate parameters.
|
|
//
|
|
if (!pbBuf)
|
|
{
|
|
hr = E_POINTER;
|
|
}
|
|
else if (!m_fInitialized)
|
|
{
|
|
hr = E_UNEXPECTED;
|
|
}
|
|
else
|
|
{
|
|
// Make sure the user's buffer is big enough.
|
|
//
|
|
ULONG cbSizeRequired;
|
|
SideAssert (SUCCEEDED(HrPersistGetSizeMax(&cbSizeRequired)));
|
|
|
|
if (cbSize < cbSizeRequired)
|
|
{
|
|
hr = E_INVALIDARG;
|
|
}
|
|
else
|
|
{
|
|
TraceTag (ttidWanCon, "HrPersistSave for %S (%S)",
|
|
PszwEntryName (),
|
|
PszwPbkFile ());
|
|
|
|
hr = HrEnsureEntryPropertiesCached ();
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
// Make the buffer look like this when we're done:
|
|
// +--------------------------------------------+
|
|
// |0x14<phonebook file>\0<guid Id>\0<users>0x05|
|
|
// +--------------------------------------------+
|
|
//
|
|
WCHAR* pchw = reinterpret_cast<WCHAR*>(pbBuf);
|
|
|
|
// Put our lead byte.
|
|
//
|
|
*pchw = c_chwLead;
|
|
pchw++;
|
|
|
|
// Put m_strPbkFile
|
|
//
|
|
ULONG cchw = lstrlenW (PszwPbkFile());
|
|
lstrcpyW (pchw, PszwPbkFile());
|
|
pchw += cchw + 1;
|
|
|
|
// Put m_guidId
|
|
//
|
|
GUID* pguidId = reinterpret_cast<GUID*>(pchw);
|
|
CopyMemory(pguidId, &GuidId(), sizeof(*pguidId));
|
|
pguidId++;
|
|
|
|
// Put m_fForAllUsers
|
|
//
|
|
BOOL* pfForAllUsers = reinterpret_cast<BOOL*>(pguidId);
|
|
CopyMemory(pfForAllUsers, &m_fForAllUsers, sizeof(*pfForAllUsers));
|
|
pfForAllUsers++;
|
|
|
|
// Put our trail byte.
|
|
//
|
|
pchw = reinterpret_cast<WCHAR*>(pfForAllUsers);
|
|
*pchw = c_chwTrail;
|
|
pchw++;
|
|
|
|
AssertSz (pbBuf + cbSizeRequired == (BYTE*)pchw,
|
|
"pch isn't pointing where it should be.");
|
|
}
|
|
}
|
|
}
|
|
TraceError ("CRasConnectionBase::HrPersistSave", hr);
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CRasConnectionBase::HrEnsureHNetPropertiesCached
|
|
//
|
|
// Purpose: Makes sure home networking properties are up-to-date
|
|
//
|
|
// Arguments:
|
|
// (none)
|
|
//
|
|
// Returns: S_OK if m_pHNetProperties is now valid (success)
|
|
// S_FALSE if it's not currently possible to update the properties
|
|
// (e.g., recursive attempt to update)
|
|
//
|
|
// Author: jonburs 16 August 2000
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT
|
|
CRasConnectionBase::HrEnsureHNetPropertiesCached ()
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
if (!m_fHNetPropertiesCached
|
|
|| m_lHNetModifiedEra != g_lHNetModifiedEra)
|
|
{
|
|
//
|
|
// Our cached properties are possibly out of date. Check
|
|
// to see that this is not a recursive entry
|
|
//
|
|
|
|
if (0 == InterlockedExchange(&m_lUpdatingHNetProperties, 1))
|
|
{
|
|
IHNetConnection *pHNetConn;
|
|
HNET_CONN_PROPERTIES *pProps;
|
|
|
|
hr = HrGetIHNetConnection(&pHNetConn);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = pHNetConn->GetProperties(&pProps);
|
|
ReleaseObj(pHNetConn);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
//
|
|
// Copy retrieved properties to member structure.
|
|
//
|
|
|
|
CopyMemory(
|
|
reinterpret_cast<PVOID>(&m_HNetProperties),
|
|
reinterpret_cast<PVOID>(pProps),
|
|
sizeof(m_HNetProperties)
|
|
);
|
|
|
|
CoTaskMemFree(pProps);
|
|
|
|
//
|
|
// Update our era, and note that we have valid properties
|
|
//
|
|
|
|
InterlockedExchange(&m_lHNetModifiedEra, g_lHNetModifiedEra);
|
|
m_fHNetPropertiesCached = TRUE;
|
|
|
|
hr = S_OK;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// If we don't yet have a record of this connection w/in the
|
|
// home networking store, HrGetIHNetConnection will fail (as
|
|
// we ask it not to create new entries). We therefore convert
|
|
// failure to S_FALSE, which means we can't retrieve this info
|
|
// right now.
|
|
//
|
|
|
|
hr = S_FALSE;
|
|
}
|
|
|
|
//
|
|
// We're no longer updating our properties
|
|
//
|
|
|
|
InterlockedExchange(&m_lUpdatingHNetProperties, 0);
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Update is alredy going on (possibly an earlier call on
|
|
// the same thread). Return S_FALSE.
|
|
//
|
|
|
|
hr = S_FALSE;
|
|
}
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: HrGetIHNetConnection
|
|
//
|
|
// Purpose: Retrieves the IHNetConnection for this connection
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: S_OK on success; error otherwise
|
|
//
|
|
// Author: jonburs 16 August 2000
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT CRasConnectionBase::HrGetIHNetConnection (
|
|
IHNetConnection **ppHNetConnection)
|
|
{
|
|
HRESULT hr;
|
|
IHNetCfgMgr *pCfgMgr;
|
|
GUID guid;
|
|
|
|
Assert(ppHNetConnection);
|
|
|
|
hr = HrGetHNetCfgMgr(&pCfgMgr);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
guid = GuidId();
|
|
|
|
hr = pCfgMgr->GetIHNetConnectionForGuid(
|
|
&guid,
|
|
FALSE,
|
|
FALSE,
|
|
ppHNetConnection
|
|
);
|
|
|
|
ReleaseObj(pCfgMgr);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: HrGetIHNetConnection
|
|
//
|
|
// Purpose: Retrieves the IHNetConnection for this connection
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: S_OK on success; error otherwise
|
|
//
|
|
// Author: jonburs 16 August 2000
|
|
//
|
|
// Notes:
|
|
//
|
|
HRESULT CRasConnectionBase::HrIsConnectionFirewalled(
|
|
BOOL* pfFirewalled)
|
|
{
|
|
*pfFirewalled = FALSE;
|
|
|
|
HRESULT hr = S_OK;
|
|
BOOL fHasPermission = FALSE;
|
|
|
|
hr = HrEnsureValidNlaPolicyEngine();
|
|
TraceError("CRasConnectionBase::HrIsConnectionFirewalled calling HrEnsureValidNlaPolicyEngine", hr);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
// A Connection is only firewalled if the firewall is currently running, so
|
|
// we return FALSE if the permission denies the firewall from running.
|
|
hr = m_pNetMachinePolicies->VerifyPermission(NCPERM_PersonalFirewallConfig, &fHasPermission);
|
|
if (SUCCEEDED(hr) && fHasPermission)
|
|
{
|
|
hr = HrEnsureHNetPropertiesCached();
|
|
|
|
if (S_OK == hr)
|
|
{
|
|
*pfFirewalled = m_HNetProperties.fFirewalled;
|
|
}
|
|
}
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CRasConnectionBase::HrEnsureValidNlaPolicyEngine()
|
|
{
|
|
HRESULT hr = S_FALSE; // Assume we already have the object
|
|
|
|
if (!m_pNetMachinePolicies)
|
|
{
|
|
hr = CoCreateInstance(CLSID_NetGroupPolicies, NULL, CLSCTX_INPROC, IID_INetMachinePolicies, reinterpret_cast<void**>(&m_pNetMachinePolicies));
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
|