Leaked source code of windows server 2003
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//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1997.
//
// File: N C D H C P S . C P P
//
// Contents: Installation support for DHCP Server
//
// Notes:
//
// Author: jeffspr 13 May 1997
//
//----------------------------------------------------------------------------
#include "pch.h"
#pragma hdrstop
#include "ncdhcps.h"
#include "ncreg.h"
#include "ncsvc.h"
#include "netoc.h"
#include "ncnetcfg.h"
#include "netcfgp.h"
#include "ncmisc.h"
#include "netcfgn.h"
extern const WCHAR c_szInfId_MS_DHCPServer[];
static const WCHAR c_szDHCPServerParamPath[] = L"System\\CurrentControlSet\\Services\\DHCPServer\\Parameters";
//$ REVIEW (jeffspr) 13 May 1997: These obviously need to be localized.
static const WCHAR c_szDisplayName[] = L"DHCP Server";
static const WCHAR c_szManufacturer[] = L"Microsoft";
static const WCHAR c_szProduct[] = L"DHCPServer";
//+---------------------------------------------------------------------------
//
// Function: HrInstallDHCPServerNotifyObject
//
// Purpose: Handles the installation of DHCP Server on behalf of the DHCP
// Server optional component. Calls into the INetCfg interface
// to do the install.
//
// Arguments:
// (none)
//
// Returns: S_OK if successful, Win32 error otherwise.
//
// Author: jeffspr 13 May 1997
//
// Notes:
//
HRESULT HrInstallDHCPServerNotifyObject(PNETOCDATA pnocd)
{
HRESULT hr = S_OK;
INetCfg * pnc = NULL;
INetCfgComponent* pncc = NULL;
INetCfgComponentSetup* pnccSetup = NULL;
hr = HrOcGetINetCfg(pnocd, TRUE, &pnc);
if (SUCCEEDED(hr))
{
NETWORK_INSTALL_PARAMS nip = {0};
nip.dwSetupFlags = FInSystemSetup() ? NSF_PRIMARYINSTALL :
NSF_POSTSYSINSTALL;
Assert(pnocd);
TraceTag(ttidNetOc, "Installing DHCP Server notify object");
hr = HrInstallComponentOboUser(
pnc,
&nip,
GUID_DEVCLASS_NETSERVICE,
c_szInfId_MS_DHCPServer,
&pncc);
if (SUCCEEDED(hr))
{
TraceTag(ttidNetOc, "QI'ing INetCfgComponentPrivate from DHCP pncc");
// Need to query for the private component interface which
// gives us access to the notify object.
//
INetCfgComponentPrivate* pnccPrivate = NULL;
hr = pncc->QueryInterface(
IID_INetCfgComponentPrivate,
reinterpret_cast<void**>(&pnccPrivate));
if (S_OK == hr)
{
TraceTag(ttidNetOc, "Getting notify object INetCfgComponentSetup from pnccSetup");
// Query the notify object for its setup interface.
// If it doesn't support it, that's okay, we can continue.
//
hr = pnccPrivate->QueryNotifyObject(
IID_INetCfgComponentSetup,
(void**) &pnccSetup);
if (S_OK == hr)
{
TraceTag(ttidNetOc, "Calling pnccSetup->ReadAnswerFile()");
(VOID) pnccSetup->ReadAnswerFile(g_ocmData.sic.SetupData.UnattendFile, pnocd->pszSection);
hr = pnc->Apply();
ReleaseObj(pnccSetup);
}
ReleaseObj(pnccPrivate);
}
ReleaseObj(pncc);
}
(VOID) HrUninitializeAndReleaseINetCfg(TRUE, pnc, TRUE);
}
TraceError("HrInstallDHCPServerNotifyObject", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrRemoveDHCPServerNotifyObject
//
// Purpose: Handles the removal of the DHCP Server on behalf of the DHCP
// Server optional component. Calls into the INetCfg interface
// to do the actual removal.
//
// Arguments:
// (none)
//
// Returns: S_OK if successful, Win32 error otherwise.
//
// Author: jeffspr 13 Jun 1997
//
// Notes:
//
HRESULT HrRemoveDHCPServerNotifyObject(PNETOCDATA pnocd)
{
HRESULT hr = S_OK;
INetCfg * pnc = NULL;
hr = HrOcGetINetCfg(pnocd, TRUE, &pnc);
if (SUCCEEDED(hr))
{
// Ignore the return from this. This is purely to remove the
// spurious user refcount from NT4 to NT5 upgrade. This will
// likely fail when removing a fresh install of DHCP Server.
//
hr = HrRemoveComponentOboUser(
pnc,
GUID_DEVCLASS_NETSERVICE,
c_szInfId_MS_DHCPServer);
if (SUCCEEDED(hr))
{
hr = pnc->Apply();
}
(VOID) HrUninitializeAndReleaseINetCfg(TRUE, pnc, TRUE);
}
TraceError("HrRemoveDHCPServerNotifyObject", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrSetDhcpServiceRecoveryOption
//
// Purpose: Sets the recovery options for the DHCPServer service
//
// Arguments:
// pnocd [in] Pointer to NETOC data.
//
// Returns: S_OK if successful, Win32 error otherwise.
//
// Author: danielwe 26 May 1999
//
// Notes:
//
HRESULT HrSetDhcpServiceRecoveryOption(PNETOCDATA pnocd)
{
CServiceManager sm;
CService service;
HRESULT hr = S_OK;
SC_ACTION sra [4] =
{
{ SC_ACTION_RESTART, 15*1000 }, // restart after 15 seconds
{ SC_ACTION_RESTART, 15*1000 }, // restart after 15 seconds
{ SC_ACTION_RESTART, 15*1000 }, // restart after 15 seconds
{ SC_ACTION_NONE, 30*1000 },
};
SERVICE_FAILURE_ACTIONS sfa =
{
60 * 60, // dwResetPeriod is 1 hr
L"", // no reboot message
L"", // no command to execute
4, // 3 attempts to restart the server and stop after that
sra
};
hr = sm.HrOpenService(&service, L"DHCPServer");
if (S_OK == hr)
{
hr = service.HrSetServiceRestartRecoveryOption(&sfa);
}
TraceError("HrSetDhcpServiceRecoveryOption", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrInstallDHCPServer
//
// Purpose: Called when DHCP Server is being installed. Handles all of the
// additional installation for DHCPS beyond that of the INF file.
//
// Arguments:
// pnocd [in] Pointer to NETOC data.
//
// Returns: S_OK if successful, Win32 error otherwise.
//
// Author: jeffspr 13 May 1997
//
// Notes:
//
HRESULT HrInstallDHCPServer(PNETOCDATA pnocd)
{
HRESULT hr = S_OK;
CServiceManager sm;
CService srv;
Assert(pnocd);
hr = HrHandleStaticIpDependency(pnocd);
if (SUCCEEDED(hr))
{
hr = HrInstallDHCPServerNotifyObject(pnocd);
if (SUCCEEDED(hr))
{
hr = HrSetDhcpServiceRecoveryOption(pnocd);
}
}
TraceError("HrInstallDHCPServer", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrRemoveDHCPServer
//
// Purpose: Handles additional removal requirements for DHCP Server
// component.
//
// hwnd [in] Parent window for displaying UI.
// poc [in] Pointer to optional component being installed.
//
// Returns: S_OK if successful, Win32 error otherwise.
//
// Author: jeffspr 13 May 1997
//
// Notes:
//
HRESULT HrRemoveDHCPServer(PNETOCDATA pnocd)
{
Assert(pnocd);
// Get the path to the database files from the regsitry.
// Important to do this before removing the component because
// the registry locations get removed when removing the component.
//
tstring strDatabasePath;
tstring strBackupDatabasePath;
HKEY hkeyParams;
HRESULT hr = HrRegOpenKeyEx(HKEY_LOCAL_MACHINE,
c_szDHCPServerParamPath,
KEY_READ,
&hkeyParams);
if (SUCCEEDED(hr))
{
(VOID) HrRegQueryExpandString (
hkeyParams,
L"DatabasePath",
&strDatabasePath);
(VOID) HrRegQueryExpandString (
hkeyParams,
L"BackupDatabasePath",
&strBackupDatabasePath);
RegCloseKey (hkeyParams);
}
// Remove DHCP server.
//
hr = HrRemoveDHCPServerNotifyObject(pnocd);
if (SUCCEEDED(hr) &&
!(strDatabasePath.empty() && strBackupDatabasePath.empty()))
{
(VOID) HrDeleteFileSpecification (
L"*.mdb",
strDatabasePath.c_str());
(VOID) HrDeleteFileSpecification (
L"*.log",
strDatabasePath.c_str());
(VOID) HrDeleteFileSpecification (
L"*.mdb",
strBackupDatabasePath.c_str());
(VOID) HrDeleteFileSpecification (
L"*.log",
strBackupDatabasePath.c_str());
}
TraceError("HrRemoveDHCPServer", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrOcExtDHCPServer
//
// Purpose: NetOC external message handler
//
// Arguments:
// pnocd []
// uMsg []
// wParam []
// lParam []
//
// Returns:
//
// Author: danielwe 17 Sep 1998
//
// Notes:
//
HRESULT HrOcExtDHCPServer(PNETOCDATA pnocd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
HRESULT hr = S_OK;
Assert(pnocd);
switch (uMsg)
{
case NETOCM_POST_INSTALL:
hr = HrOcDhcpOnInstall(pnocd);
break;
}
TraceError("HrOcExtDHCPServer", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Function: HrOcDhcpOnInstall
//
// Purpose: Called by optional components installer code to handle
// additional installation requirements for DHCP Server
//
// Arguments:
// pnocd [in] Pointer to NETOC data
//
// Returns: S_OK if successful, Win32 error otherwise.
//
// Author: jeffspr 13 May 1997
//
// Notes:
//
HRESULT HrOcDhcpOnInstall(PNETOCDATA pnocd)
{
HRESULT hr = S_OK;
switch(pnocd->eit)
{
// Install DHCP
case IT_INSTALL:
hr = HrInstallDHCPServer(pnocd);
break;
// Remove DHCP
case IT_REMOVE:
hr = HrRemoveDHCPServer(pnocd);
break;
case IT_UPGRADE:
hr = HrSetDhcpServiceRecoveryOption(pnocd);
break;
}
TraceError("HrOcDhcpOnInstall", hr);
return hr;
}