Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

460 lines
14 KiB

//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1997.
//
// File: T C P R S V P . C P P
//
// Contents: RSVP portion of TCP/IP
//
// Notes:
//
// Author: kumarp 19-March-98
//
//----------------------------------------------------------------------------
#include "pch.h"
#pragma hdrstop
#include "ncnetcfg.h"
#include <ws2spi.h>
#include "ncsvc.h"
const GUID c_guidRsvpNtName = { /* 9d60a9e0-337a-11d0-bd88-0000c082e69a */
0x9d60a9e0,
0x337a,
0x11d0,
{0xbd, 0x88, 0x00, 0x00, 0xc0, 0x82, 0xe6, 0x9a}
};
static const WCHAR* c_szChainNameUdp = L"RSVP UDP Service Provider";
static const WCHAR* c_szChainNameTcp = L"RSVP TCP Service Provider";
static const WCHAR* c_szRsvpFullPath = L"%SystemRoot%\\system32\\rsvpsp.dll";
// ----------------------------------------------------------------------
//
// Function: HrInstallRsvpProvider
//
// Purpose: This registers with winsock the RSVP TCP and UDP provider.
// This allows QoS for TCP and UDP
//
// Arguments: None
//
// Returns: S_OK on success, otherwise an error code
//
// Author: kumarp 19-March-98
//
// Notes: This function was written mainly by cwill.
//
HRESULT HrInstallRsvpProvider(VOID)
{
HRESULT hr = S_OK;
INT err = 0;
INT result = 0;
WSAPROTOCOL_INFO awpiRsvp[2];
// Note: CWill : 08/08/97 : This is a hack to get TCP/IP
// registered before RSVP. We have to get some way
// of ordering RSVP after TCP/IP
(VOID) HrRunWinsock2Migration();
//
// Setup the UDP provider
//
awpiRsvp[0].dwServiceFlags1 =
XP1_QOS_SUPPORTED
| XP1_CONNECTIONLESS
| XP1_MESSAGE_ORIENTED
| XP1_SUPPORT_BROADCAST
| XP1_SUPPORT_MULTIPOINT
| XP1_IFS_HANDLES;
awpiRsvp[0].dwServiceFlags2 = 0;
awpiRsvp[0].dwServiceFlags3 = 0;
awpiRsvp[0].dwServiceFlags4 = 0;
awpiRsvp[0].dwProviderFlags = PFL_MATCHES_PROTOCOL_ZERO;
// Copy the GUID
memcpy(&(awpiRsvp[0].ProviderId), &c_guidRsvpNtName,
sizeof(awpiRsvp[0].ProviderId));
awpiRsvp[0].dwCatalogEntryId = 0;
awpiRsvp[0].ProtocolChain.ChainLen = 1;
// Change history
// 2 in Win98 and in NT 5 during development
// 4 in Windows 2000, to be different from Win98 as the API changed slightly (RAID #299558)
// 6 In Whistler as RSVPSP calls default provider rather than MSAFD, to handle Proxy client
awpiRsvp[0].iVersion = 6;
awpiRsvp[0].iAddressFamily = AF_INET;
awpiRsvp[0].iMaxSockAddr = 16;
awpiRsvp[0].iMinSockAddr = 16;
awpiRsvp[0].iSocketType = SOCK_DGRAM;
awpiRsvp[0].iProtocol = IPPROTO_UDP;
awpiRsvp[0].iProtocolMaxOffset = 0;
awpiRsvp[0].iNetworkByteOrder = BIGENDIAN;
awpiRsvp[0].iSecurityScheme = SECURITY_PROTOCOL_NONE;
//$ REVIEW : CWill : 08/07/97 : This is what UDP returns...
awpiRsvp[0].dwMessageSize = 0x0000ffbb;
awpiRsvp[0].dwProviderReserved = 0;
// Copy over the name
lstrcpynW(awpiRsvp[0].szProtocol, c_szChainNameUdp,
(WSAPROTOCOL_LEN + 1));
//
// Setup the TCP provider
//
awpiRsvp[1].dwServiceFlags1 =
XP1_GUARANTEED_DELIVERY
| XP1_GUARANTEED_ORDER
| XP1_GRACEFUL_CLOSE
| XP1_EXPEDITED_DATA
| XP1_QOS_SUPPORTED
| XP1_IFS_HANDLES;
awpiRsvp[1].dwServiceFlags2 = 0;
awpiRsvp[1].dwServiceFlags3 = 0;
awpiRsvp[1].dwServiceFlags4 = 0;
awpiRsvp[1].dwProviderFlags = PFL_MATCHES_PROTOCOL_ZERO;
// Copy the GUID
memcpy(&(awpiRsvp[1].ProviderId), &c_guidRsvpNtName,
sizeof(awpiRsvp[1].ProviderId));
awpiRsvp[1].dwCatalogEntryId = 0;
awpiRsvp[1].ProtocolChain.ChainLen = 1;
// Change history
// 2 in Win98 and in NT 5 during development
// 4 in Windows 2000, to be different from Win98 as the API changed slightly (RAID #299558)
// 6 In Whistler, as RSVPSP calls default provider rather than MSAFD, to handle Proxy client
awpiRsvp[1].iVersion = 6;
awpiRsvp[1].iAddressFamily = AF_INET;
awpiRsvp[1].iMaxSockAddr = 16;
awpiRsvp[1].iMinSockAddr = 16;
awpiRsvp[1].iSocketType = SOCK_STREAM;
awpiRsvp[1].iProtocol = IPPROTO_TCP;
awpiRsvp[1].iProtocolMaxOffset = 0;
awpiRsvp[1].iNetworkByteOrder = BIGENDIAN;
awpiRsvp[1].iSecurityScheme = SECURITY_PROTOCOL_NONE;
awpiRsvp[1].dwMessageSize = 0;
awpiRsvp[1].dwProviderReserved = 0;
// Copy over the name
lstrcpynW(awpiRsvp[1].szProtocol, c_szChainNameTcp,
(WSAPROTOCOL_LEN + 1));
// Install the provider
#ifdef _WIN64
// On 64 bit machines modify both 64 and 32 bit catalogs.
result = ::WSCInstallProvider64_32(
#else
result = ::WSCInstallProvider(
#endif
(GUID*) &c_guidRsvpNtName,
c_szRsvpFullPath,
awpiRsvp,
celems(awpiRsvp),
&err);
if (SOCKET_ERROR == result)
{
hr = HRESULT_FROM_WIN32(err);
}
TraceError("HrInstallRsvpProvider", hr);
return hr;
}
//+---------------------------------------------------------------------------
//
// Member: RemoveRsvpProvider
//
// Purpose: Remove RSVP from the list of registered WinSock providers
//
// Arguments: None
//
// Returns: Nil
//
VOID RemoveRsvpProvider(VOID)
{
HRESULT hr = S_OK;
INT err = NO_ERROR;
ULONG result = NO_ERROR;
DWORD dwBuffSize = 0;
WSAPROTOCOL_INFO* pwpiProtoInfo = NULL;
WSAPROTOCOL_INFO* pwpiInfo = NULL;
// Find all the protocols that are installed
//
result = ::WSCEnumProtocols(
NULL,
NULL,
&dwBuffSize,
&err);
if ((SOCKET_ERROR == result) && (WSAENOBUFS != err))
{
// We have a real error
//
hr = HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
}
else
{
pwpiProtoInfo = reinterpret_cast<WSAPROTOCOL_INFO*>(new BYTE[dwBuffSize]);
if (pwpiProtoInfo)
{
// Find out all the protocols on the system
//
result = ::WSCEnumProtocols(
NULL,
pwpiProtoInfo,
&dwBuffSize,
&err);
pwpiInfo = pwpiProtoInfo;
if (SOCKET_ERROR != result)
{
DWORD cProt;
cProt = result;
hr = HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_FOUND);
// Look for the RSVP protocol
//
while (cProt--)
{
if (pwpiInfo->ProviderId == c_guidRsvpNtName)
{
AssertSz((XP1_QOS_SUPPORTED
& pwpiInfo->dwServiceFlags1),
"Why is QoS not supported?");
AssertSz(((IPPROTO_UDP == pwpiInfo->iProtocol)
|| (IPPROTO_TCP == pwpiInfo->iProtocol)),
"Unknown RSVP protocol");
// Remove the RSVP provider
//
result = ::WSCDeinstallProvider(
&(pwpiInfo->ProviderId), &err);
if (SOCKET_ERROR == result)
{
hr = HRESULT_FROM_WIN32(err);
TraceTag(ttidError,
"Failed to De-Install Protocol, error = %d, Proto = %X\n",
err,
pwpiInfo->iProtocol);
}
#ifdef _WIN64
//
// Deinstall 32 bit provider as well.
// We always install both versions, so should uninstall both
// as well (both providers have the same ID, so we do not
// need to enumerate 32 bit catalog).
result = ::WSCDeinstallProvider32(
&(pwpiInfo->ProviderId), &err);
if (SOCKET_ERROR == result)
{
hr = HRESULT_FROM_WIN32(err);
TraceTag(ttidError,
"Failed to De-Install Protocol (32 bit), error = %d, Proto = %X\n",
err,
pwpiInfo->iProtocol);
}
#endif
// We have found it
//
hr = S_OK;
break;
}
pwpiInfo++;
}
}
else
{
TraceTag(
ttidError,
"Failed to Enumerate protocols, error = %d\n",
err);
hr = HRESULT_FROM_WIN32(err);
}
// Free the allocation
//
delete pwpiProtoInfo;
}
}
TraceErrorOptional("RemoveRsvpProvider", hr,
(ERROR_SERVICE_NOT_FOUND == hr));
return;
}
/*
// ----------------------------------------------------------------------
//
// Function: HrFindRsvpProvider
//
// Purpose:
// This routine installs the service provider.
//
// Arguments:
// iProtocolId [in] protocol to find
// pwpiOutProtoInfo [in] pointer to returned proto info
//
// Returns: S_OK on success, otherwise an error code
//
// Author: kumarp 19-March-98
//
// Notes: This function was written mainly by cwill.
//
HRESULT HrFindRsvpProvider(INT iProtocolId, WSAPROTOCOL_INFO* pwpiOutProtoInfo)
{
HRESULT hr = S_OK;
INT err = NO_ERROR;
ULONG result = NO_ERROR;
DWORD dwBuffSize = 0;
WSAPROTOCOL_INFO* pwpiProtoInfo = NULL;
WSAPROTOCOL_INFO* pwpiInfo = NULL;
result = WSCEnumProtocols(
NULL,
NULL,
&dwBuffSize,
&err);
if ((SOCKET_ERROR == result) && (WSAENOBUFS != err))
{
// We have a real error
hr = HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
}
else
{
pwpiProtoInfo = reinterpret_cast<WSAPROTOCOL_INFO*>(new BYTE[dwBuffSize]);
if (pwpiProtoInfo)
{
// Find out all the protocols on the system
result = WSCEnumProtocols(
NULL,
pwpiProtoInfo,
&dwBuffSize,
&err);
pwpiInfo = pwpiProtoInfo;
if (SOCKET_ERROR != result)
{
DWORD cProt;
cProt = result;
hr = HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_FOUND);
// Look for a protocol that supports QoS
while (cProt--)
{
if ((pwpiInfo->iProtocol == iProtocolId)
&& (XP1_QOS_SUPPORTED & pwpiInfo->dwServiceFlags1))
{
*pwpiOutProtoInfo = *pwpiInfo;
hr = S_OK;
break;
}
pwpiInfo++;
}
}
else
{
TraceTag(
ttidError,
"Failed to Enumerate protocols, error = %d\n",
err);
hr = HRESULT_FROM_WIN32(err);
}
delete pwpiProtoInfo;
}
}
TraceErrorOptional("HrFindRsvpProvider", hr,
(ERROR_SERVICE_NOT_FOUND == hr));
return hr;
}
// ----------------------------------------------------------------------
//
// Function: RemoveRsvpProvider
//
// Purpose: Remove RSVP provider
//
// Arguments:
// iProtocolId [in] protocol id to remove
//
// Returns:
//
// Author: kumarp 19-March-98
//
// Notes: This function was written mainly by cwill.
//
VOID RemoveRsvpProvider(INT iProtocolId)
{
HRESULT hr = S_OK;
WSAPROTOCOL_INFO wpiProtoInfo;
// Find the provider and remove it
hr = HrFindRsvpProvider(iProtocolId, &wpiProtoInfo);
if (SUCCEEDED(hr))
{
INT err = NO_ERROR;
#ifdef DBG
INT result =
#endif // DBG
WSCDeinstallProvider(&wpiProtoInfo.ProviderId, &err);
#ifdef DBG
if (SOCKET_ERROR == result)
{
hr = HRESULT_FROM_WIN32(err);
TraceTag(ttidError,
"Failed to De-Install Protocol, error = %d, Proto = %X\n",
err,
iProtocolId);
}
#endif // DBG
}
TraceErrorOptional("HrFindRsvpProvider", hr,
(ERROR_SERVICE_NOT_FOUND == hr));
return;
}
// ----------------------------------------------------------------------
//
// Function: RemoveRsvpProviders
//
// Purpose: Remove RSVP providers
//
// Arguments: None
//
// Returns: None
//
// Author: kumarp 19-March-98
//
// Notes:
//
void RemoveRsvpProviders(VOID)
{
// Remove the providers if they are present
RemoveRsvpProvider(IPPROTO_UDP);
RemoveRsvpProvider(IPPROTO_TCP);
}
*/