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windows-nt/Source/XPSP1/NT/net/rras/ip/nath323/main.cpp

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/*++
Copyright (c) 1998 - 2000 Microsoft Corporation
Module Name:
main.cpp
Abstract:
Contains:
1. Module startup routines
2. Component activation routines
3. Component deactivation routines
4. Module shutdown/cleanup routines
5. Auxiliary routines
Revision History:
1. 31-Jul-1998 -- File creation Ajay Chitturi (ajaych)
2. 15-Jul-1999 -- Arlie Davis (arlied)
3. 14-Feb-2000 -- Added support for multiple Ilya Kleyman (ilyak)
private interfaces
--*/
#include "stdafx.h"
///////////////////////////////////////////////////////////////////////////////
// //
// Global Variables //
// //
///////////////////////////////////////////////////////////////////////////////
HANDLE NatHandle = NULL;
///////////////////////////////////////////////////////////////////////////////
// //
// Static declarations //
// //
///////////////////////////////////////////////////////////////////////////////
static
void
QueryRegistry (
void
);
static
HRESULT
H323ProxyStartServiceInternal (
void
);
static
HRESULT
H323ProxyStart (
void
);
static
HRESULT
LdapProxyStart (
void
);
static
void
H323ProxyStop (
void
);
static
void
LdapProxyStop (
void
);
///////////////////////////////////////////////////////////////////////////////
// //
// Module startup routines //
// //
///////////////////////////////////////////////////////////////////////////////
EXTERN_C
BOOLEAN
H323ProxyInitializeModule (
void
)
/*++
Routine Description:
Initializes module.
Arguments:
None
Return Values:
TRUE - if initialization was successful
FALSE - if initialization failed
Notes:
Equivalent to DLL_PROCESS_ATTACH
--*/
{
Debug (_T("H323: DLL_PROCESS_ATTACH.\n"));
H323ASN1Initialize();
return TRUE;
} // H323ProxyInitializeModule
EXTERN_C
ULONG
H323ProxyStartService (
void
)
/*++
Routine Description:
Starts the service
Arguments:
None
Return Values:
Win32 error code
Notes:
Module entry point
--*/
{
HRESULT Result;
Debug (_T("H323: starting...\n"));
Result = H323ProxyStartServiceInternal();
if (Result == S_OK) {
DebugF (_T("H323: H.323/LDAP proxy has initialized successfully.\n"));
return ERROR_SUCCESS;
}
else {
DebugError (Result, _T("H323: H.323/LDAP proxy has FAILED to initialize.\n"));
return ERROR_CAN_NOT_COMPLETE;
}
} // H323ProxyStartService
///////////////////////////////////////////////////////////////////////////////
// //
// Component activation routines //
// //
///////////////////////////////////////////////////////////////////////////////
static
HRESULT
H323ProxyStartServiceInternal (
void
)
/*++
Routine Description:
Initializes all components.
Arguments:
None.
Return Values:
Returns S_OK in case of success or an error in case of failure.
Notes:
Internal version of DLL entry point
--*/
{
WSADATA WsaData;
HRESULT Result;
QueryRegistry ();
// Initialize WinSock
Result = WSAStartup (MAKEWORD (2, 0), &WsaData);
if (S_OK == Result) {
// Initialize allocator of call reference values
Result = InitCrvAllocator();
if (S_OK == Result) {
// initialize NAT
Result = NatInitializeTranslator (&NatHandle);
if (S_OK == Result) {
// Initialize Port Pool
Result = PortPoolStart ();
if (S_OK == Result) {
// Initialize H.323 Proxy
Result = H323ProxyStart ();
if (S_OK == Result) {
// Initialize LDAP Proxy
Result = LdapProxyStart ();
if (S_OK == Result) {
return S_OK;
}
H323ProxyStop ();
}
PortPoolStop ();
}
NatShutdownTranslator (NatHandle);
NatHandle = NULL;
}
CleanupCrvAllocator ();
}
WSACleanup ();
}
return Result;
} // H323ProxyStartServiceInternal
HRESULT H323ProxyStart (
void
)
/*++
Routine Description:
Initializes components of H.323 proxy
Arguments:
None
Return Values:
S_OK if successful, error code otherwise.
Notes:
--*/
{
HRESULT Result;
Result = Q931SyncCounter.Start ();
if (S_OK == Result) {
CallBridgeList.Start ();
Result = Q931CreateBindSocket ();
if (S_OK == Result) {
Result = Q931StartLoopbackRedirect ();
if (S_OK == Result) {
return S_OK;
}
Q931CloseSocket ();
CallBridgeList.Stop ();
}
Q931SyncCounter.Wait (INFINITE);
Q931SyncCounter.Stop ();
}
return Result;
} // H323ProxyStart
HRESULT LdapProxyStart (
void
)
/*++
Routine Description:
Initializes components of LDAP proxy
Arguments:
None
Return Values:
S_OK if successful, error code otherwise
Notes:
--*/
{
HRESULT Status;
Status = LdapSyncCounter.Start ();
if (S_OK == Status) {
Status = LdapCoder.Start();
if (S_OK == Status) {
Status = LdapTranslationTable.Start ();
if (S_OK == Status) {
LdapConnectionArray.Start ();
Status = LdapAccept.Start ();
if (S_OK == Status) {
return S_OK;
}
LdapConnectionArray.Stop ();
LdapTranslationTable.Stop ();
}
LdapCoder.Stop ();
}
LdapSyncCounter.Wait (INFINITE);
LdapSyncCounter.Stop ();
}
return Status;
} // LdapProxyStart
EXTERN_C ULONG
H323ProxyActivateInterface(
IN ULONG Index,
IN H323_INTERFACE_TYPE InterfaceType,
IN PIP_ADAPTER_BINDING_INFO BindingInfo
)
/*++
Routine Description:
Activates an interface for H.323/LDAP
Arguments:
Index - Interface index (for internal use)
BindingInfo - Interface binding information
Return Values:
Win32 error code
Notes:
Module entry point
--*/
{
ULONG Error;
DebugF (_T("H323: Request to activate interface with adapter index %d.\n"),
Index);
if (!BindingInfo->AddressCount ||
!BindingInfo->Address[0].Address ||
Index == INVALID_INTERFACE_INDEX) {
return ERROR_INVALID_PARAMETER;
}
Error = InterfaceArray.AddStartInterface (Index, InterfaceType, BindingInfo);
return Error;
} // H323ProxyActivateInterface
///////////////////////////////////////////////////////////////////////////////
// //
// Module shutdown routines //
// //
///////////////////////////////////////////////////////////////////////////////
EXTERN_C void H323ProxyCleanupModule (
void
)
/*++
Routine Description:
Shuts down module
Arguments:
None
Return Values:
None
Notes:
Equivalent to DLL_PROCESS_DETACH
--*/
{
Debug (_T("H323: DLL_PROCESS_DETACH\n"));
H323ASN1Shutdown ();
} // H323ProxyCleanupModule
EXTERN_C
void H323ProxyStopService (
void
)
/*++
Routine Description:
Stops the service
Arguments:
None
Return Values:
None
Notes:
Module entry point
--*/
{
LdapProxyStop ();
H323ProxyStop ();
InterfaceArray.AssertShutdownReady ();
InterfaceArray.Stop ();
PortPoolStop ();
if (NatHandle) {
NatShutdownTranslator (NatHandle);
NatHandle = NULL;
}
CleanupCrvAllocator ();
WSACleanup ();
Debug (_T("H323: service has stopped\n"));
} // H323ProxyStopService
void
H323ProxyStop (
void
)
/*++
Routine Description:
Stops H.323 proxy and waits until all call-bridges are deleted.
Arguments:
None
Return Values:
None
Notes:
--*/
{
Q931StopLoopbackRedirect ();
Q931CloseSocket ();
CallBridgeList.Stop ();
Q931SyncCounter.Wait (INFINITE);
Q931SyncCounter.Stop ();
} // H323ProxyStop
void
LdapProxyStop (
void)
/*++
Routine Description:
LdapProxyStop is responsible for undoing all of the work that LdapProxyStart performed.
It deletes the NAT redirect, deletes all LDAP connections (or, at least, it releases them
-- they may not delete themselves yet if they have pending I/O or timer callbacks),
and disables the creation of new LDAP connections.
Arguments:
None
Return Values:
None
Notes:
--*/
{
LdapAccept.Stop ();
LdapConnectionArray.Stop ();
LdapTranslationTable.Stop ();
LdapCoder.Stop();
LdapSyncCounter.Wait (INFINITE);
LdapSyncCounter.Stop ();
} // LdapProxyStop
///////////////////////////////////////////////////////////////////////////////
// //
// Component deactivation routines //
// //
///////////////////////////////////////////////////////////////////////////////
EXTERN_C
VOID
H323ProxyDeactivateInterface (
IN ULONG Index
)
/*++
Routine Description:
Deactivates interface for H.323/LDAP
Arguments:
Index -- Interface index, previously passed to the
interface activation routine
Return Values:
None
Notes:
Module entry point
--*/
{
DebugF (_T("H323: DeactivateInterface called, index %d\n"),
Index);
InterfaceArray.RemoveStopInterface (Index);
} // H323ProxyDeactivateInterface
///////////////////////////////////////////////////////////////////////////////
// //
// Auxiliary routines //
// //
///////////////////////////////////////////////////////////////////////////////
static
void
QueryRegistry (
void
)
/*++
Routine Description:
Queries Registry for the values needed in module operations
Arguments:
None
Return Values:
None
Notes:
static
--*/
{
HKEY Key;
HRESULT Result;
Result = RegOpenKeyEx (
HKEY_LOCAL_MACHINE, H323ICS_SERVICE_PARAMETERS_KEY_PATH,
0,
KEY_READ,
&Key
);
if (ERROR_SUCCESS == Result) {
Result = RegQueryValueDWORD (Key, H323ICS_REG_VAL_LOCAL_H323_ROUTING, &EnableLocalH323Routing);
if (ERROR_SUCCESS != Result) {
EnableLocalH323Routing = FALSE;
}
RegCloseKey (Key);
} else {
EnableLocalH323Routing = FALSE;
}
DebugF (_T("H323: Local H323 routing is %sabled.\n"),
EnableLocalH323Routing ? _T("en") : _T("dis"));
} // QueryRegistry
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