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1027 lines
26 KiB
1027 lines
26 KiB
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/********************************************************************/
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/** Copyright(c) 1995 Microsoft Corporation. **/
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/********************************************************************/
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//***
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//
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// Filename: attrib.c
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//
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// Description: Contains code to manipulate RAS_AUTH_ATTRIBUTE structures
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//
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// History: Feb 11,1997 NarenG Created original version.
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//
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#define UNICODE
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <rtutils.h>
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#include <lmcons.h>
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#include <rasauth.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define INCL_RASAUTHATTRIBUTES
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#define INCL_HOSTWIRE
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#include "ppputil.h"
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//**
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//
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// Call: RasAuthAttributeCreate
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//
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// Returns: NO_ERROR - Success
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// Non-zero returns - Failure
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//
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// Description: Will create an array of attributes plus one for the terminator
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//
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RAS_AUTH_ATTRIBUTE *
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RasAuthAttributeCreate(
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IN DWORD dwNumAttributes
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)
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{
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RAS_AUTH_ATTRIBUTE * pAttributes;
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DWORD dwIndex;
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pAttributes = (RAS_AUTH_ATTRIBUTE * )
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LocalAlloc(LPTR,
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sizeof( RAS_AUTH_ATTRIBUTE )*(1+dwNumAttributes));
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if ( pAttributes == NULL )
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{
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return( NULL );
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}
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//
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// Initialize
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//
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for( dwIndex = 0; dwIndex < dwNumAttributes; dwIndex++ )
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{
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pAttributes[dwIndex].raaType = raatReserved;
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pAttributes[dwIndex].dwLength = 0;
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pAttributes[dwIndex].Value = NULL;
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}
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//
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// Terminate
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//
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pAttributes[dwNumAttributes].raaType = raatMinimum;
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pAttributes[dwNumAttributes].dwLength = 0;
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pAttributes[dwNumAttributes].Value = NULL;
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return( pAttributes );
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}
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//**
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//
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// Call: RasAuthAttributeDestroy
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//
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// Returns: NO_ERROR - Success
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// Non-zero returns - Failure
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//
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// Description: Will free up all allocated memory occupied by the attributes
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// structure
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//
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VOID
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RasAuthAttributeDestroy(
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IN RAS_AUTH_ATTRIBUTE * pAttributes
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)
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{
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DWORD dwIndex;
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if ( NULL == pAttributes )
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{
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return;
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}
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for( dwIndex = 0; pAttributes[dwIndex].raaType != raatMinimum; dwIndex++ )
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{
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switch( pAttributes[dwIndex].raaType )
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{
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case raatUserName:
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case raatUserPassword:
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case raatMD5CHAPPassword:
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case raatFilterId:
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case raatReplyMessage:
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case raatCallbackNumber:
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case raatCallbackId:
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case raatFramedRoute:
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case raatState:
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case raatClass:
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case raatVendorSpecific:
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case raatCalledStationId:
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case raatCallingStationId:
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case raatNASIdentifier:
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case raatProxyState:
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case raatLoginLATService:
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case raatLoginLATNode:
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case raatLoginLATGroup:
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case raatFramedAppleTalkZone:
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case raatAcctSessionId:
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case raatAcctMultiSessionId:
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case raatMD5CHAPChallenge:
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case raatLoginLATPort:
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case raatTunnelClientEndpoint:
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case raatTunnelServerEndpoint:
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case raatARAPPassword:
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case raatARAPFeatures:
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case raatARAPSecurityData:
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case raatConnectInfo:
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case raatConfigurationToken:
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case raatEAPMessage:
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case raatSignature:
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case raatARAPChallengeResponse:
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case raatCertificateOID:
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//
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// Allocated memory here so free it
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//
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if ( pAttributes[dwIndex].Value != NULL )
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{
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ZeroMemory( pAttributes[dwIndex].Value,
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pAttributes[dwIndex].dwLength);
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LocalFree( pAttributes[dwIndex].Value );
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}
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break;
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case raatReserved:
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//
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// Do nothing to uninitialized values
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//
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case raatPEAPFastRoamedSession:
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case raatPEAPEmbeddedEAPTypeId:
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//
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// Same as Default case here. fall thru'
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//
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default:
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//
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// DWORDs, USHORTs or BYTEs so do nothing
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//
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break;
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}
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}
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LocalFree( pAttributes );
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}
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//**
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//
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// Call: RasAuthAttributeGet
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//
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// Returns: NO_ERROR - Success
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// Non-zero returns - Failure
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//
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// Description:
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//
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RAS_AUTH_ATTRIBUTE *
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RasAuthAttributeGet(
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IN RAS_AUTH_ATTRIBUTE_TYPE raaType,
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IN RAS_AUTH_ATTRIBUTE * pAttributes
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)
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{
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DWORD dwIndex;
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if ( pAttributes == NULL )
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{
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return( NULL );
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}
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for( dwIndex = 0; pAttributes[dwIndex].raaType != raatMinimum; dwIndex++ )
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{
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if ( pAttributes[dwIndex].raaType == raaType )
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{
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return( &(pAttributes[dwIndex]) );
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}
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}
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return( NULL );
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}
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//**
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//
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// Call: RasAuthAttributeGetFirst
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//
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// Returns: NO_ERROR - Success
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// Non-zero returns - Failure
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//
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// Description:
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//
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RAS_AUTH_ATTRIBUTE *
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RasAuthAttributeGetFirst(
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IN RAS_AUTH_ATTRIBUTE_TYPE raaType,
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IN RAS_AUTH_ATTRIBUTE * pAttributes,
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OUT HANDLE * phAttribute
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)
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{
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DWORD dwIndex;
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RAS_AUTH_ATTRIBUTE * pRequiredAttribute;
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pRequiredAttribute = RasAuthAttributeGet( raaType, pAttributes );
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if ( pRequiredAttribute == NULL )
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{
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*phAttribute = NULL;
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return( NULL );
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}
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*phAttribute = pRequiredAttribute;
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return( pRequiredAttribute );
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}
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//**
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//
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// Call: RasAuthAttributeGetNext
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//
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// Returns: NO_ERROR - Success
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// Non-zero returns - Failure
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//
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// Description:
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//
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RAS_AUTH_ATTRIBUTE *
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RasAuthAttributeGetNext(
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IN OUT HANDLE * phAttribute,
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IN RAS_AUTH_ATTRIBUTE_TYPE raaType
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)
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{
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DWORD dwIndex;
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RAS_AUTH_ATTRIBUTE * pAttributes = (RAS_AUTH_ATTRIBUTE *)*phAttribute;
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if ( pAttributes == NULL )
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{
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return( NULL );
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}
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pAttributes++;
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while( pAttributes->raaType != raatMinimum )
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{
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if ( pAttributes->raaType == raaType )
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{
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*phAttribute = pAttributes;
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return( pAttributes );
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}
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pAttributes++;
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}
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*phAttribute = NULL;
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return( NULL );
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}
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//**
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//
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// Call: RasAuthAttributesPrint
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//
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// Returns: VOID
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//
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// Description: Will print all the attributes in pAttributes
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//
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VOID
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RasAuthAttributesPrint(
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IN DWORD dwTraceID,
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IN DWORD dwFlags,
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IN RAS_AUTH_ATTRIBUTE * pAttributes
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)
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{
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DWORD dwIndex;
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if ( NULL == pAttributes )
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{
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return;
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}
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for ( dwIndex = 0;
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pAttributes[dwIndex].raaType != raatMinimum;
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dwIndex++)
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{
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switch( pAttributes[dwIndex].raaType )
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{
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case raatUserName:
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case raatUserPassword:
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case raatMD5CHAPPassword:
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case raatFilterId:
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case raatReplyMessage:
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case raatCallbackNumber:
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case raatCallbackId:
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case raatFramedRoute:
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case raatState:
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case raatClass:
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case raatVendorSpecific:
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case raatCalledStationId:
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case raatCallingStationId:
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case raatNASIdentifier:
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case raatProxyState:
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case raatLoginLATService:
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case raatLoginLATNode:
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case raatLoginLATGroup:
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case raatFramedAppleTalkZone:
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case raatAcctSessionId:
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case raatAcctMultiSessionId:
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case raatMD5CHAPChallenge:
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case raatLoginLATPort:
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case raatTunnelClientEndpoint:
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case raatTunnelServerEndpoint:
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case raatARAPPassword:
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case raatARAPFeatures:
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case raatARAPSecurityData:
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case raatConnectInfo:
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case raatConfigurationToken:
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case raatEAPMessage:
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case raatSignature:
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case raatARAPChallengeResponse:
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case raatCertificateOID:
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TracePrintfExA(
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dwTraceID, dwFlags,
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"Type=%d, Length=%d, Value=",
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pAttributes[dwIndex].raaType,
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pAttributes[dwIndex].dwLength );
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if ( ( pAttributes[dwIndex].raaType == raatVendorSpecific )
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&& ( pAttributes[dwIndex].dwLength >= 5 )
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&& ( WireToHostFormat32( pAttributes[dwIndex].Value ) == 311 ) )
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{
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DWORD dwVendorType;
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dwVendorType = ((BYTE*)(pAttributes[dwIndex].Value))[4];
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//
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// Do not print MS-CHAP-MPPE-Keys, MS-MPPE-Send-Key and
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// MS-MPPE-Recv-Key
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//
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if ( ( dwVendorType == 12 )
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|| ( dwVendorType == 16 )
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|| ( dwVendorType == 17 ) )
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{
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TracePrintfExA(
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dwTraceID, dwFlags,
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"MS vendor specific %d", dwVendorType );
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break;
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}
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}
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//
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// Do not print the password
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//
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if(pAttributes[dwIndex].raaType == raatUserPassword)
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{
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TracePrintfExA(
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dwTraceID, dwFlags,
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"raatUserPassword");
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break;
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}
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TraceDumpExA(
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dwTraceID, dwFlags,
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pAttributes[dwIndex].Value,
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pAttributes[dwIndex].dwLength,
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1, FALSE, "" );
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break;
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case raatPEAPFastRoamedSession:
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case raatPEAPEmbeddedEAPTypeId:
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//
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// Same as Default case here. fall thru'
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//
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default:
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TracePrintfExA(
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dwTraceID, dwFlags,
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"Type=%d, Length=%d, Value=0x%x",
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pAttributes[dwIndex].raaType,
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pAttributes[dwIndex].dwLength,
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pAttributes[dwIndex].Value );
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break;
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}
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}
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}
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//**
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//
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// Call: RasAuthAttributeInsert
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//
|
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// Returns: NO_ERROR - Success
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// Non-zero returns - Failure
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//
|
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// Description:
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//
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DWORD
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RasAuthAttributeInsert(
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IN DWORD dwIndex,
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IN RAS_AUTH_ATTRIBUTE * pAttributes,
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IN RAS_AUTH_ATTRIBUTE_TYPE raaType,
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IN BOOL fConvertToMultiByte,
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IN DWORD dwLength,
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IN PVOID pValue
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)
|
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{
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DWORD dwErr;
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|
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if ( raatMinimum == pAttributes[dwIndex].raaType )
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{
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return( ERROR_NOT_ENOUGH_MEMORY );
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}
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|
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switch( raaType )
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{
|
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case raatUserName:
|
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case raatUserPassword:
|
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case raatMD5CHAPPassword:
|
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case raatFilterId:
|
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case raatReplyMessage:
|
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case raatCallbackNumber:
|
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case raatCallbackId:
|
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case raatFramedRoute:
|
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case raatState:
|
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case raatClass:
|
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case raatVendorSpecific:
|
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case raatCalledStationId:
|
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case raatCallingStationId:
|
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case raatNASIdentifier:
|
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case raatProxyState:
|
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case raatLoginLATService:
|
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case raatLoginLATNode:
|
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case raatLoginLATGroup:
|
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case raatFramedAppleTalkZone:
|
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case raatAcctSessionId:
|
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case raatAcctMultiSessionId:
|
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case raatMD5CHAPChallenge:
|
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case raatLoginLATPort:
|
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case raatTunnelClientEndpoint:
|
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case raatTunnelServerEndpoint:
|
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case raatARAPPassword:
|
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case raatARAPFeatures:
|
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case raatARAPSecurityData:
|
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case raatConnectInfo:
|
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case raatConfigurationToken:
|
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case raatEAPMessage:
|
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case raatSignature:
|
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case raatARAPChallengeResponse:
|
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case raatCertificateOID:
|
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// If you add a new attribute here, update RasAuthAttributesPrint also.
|
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|
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if ( pValue != NULL )
|
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{
|
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pAttributes[dwIndex].Value = LocalAlloc( LPTR, dwLength+1 );
|
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|
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if ( pAttributes[dwIndex].Value == NULL )
|
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{
|
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return( GetLastError() );
|
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}
|
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|
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if ( fConvertToMultiByte )
|
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{
|
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if (0 == WideCharToMultiByte(
|
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CP_ACP,
|
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0,
|
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(WCHAR*)pValue,
|
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dwLength + 1,
|
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pAttributes[dwIndex].Value,
|
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dwLength + 1,
|
|
NULL,
|
|
NULL ) )
|
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{
|
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dwErr = GetLastError();
|
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LocalFree( pAttributes[dwIndex].Value );
|
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return( dwErr );
|
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}
|
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}
|
|
else
|
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{
|
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CopyMemory( pAttributes[dwIndex].Value, pValue, dwLength );
|
|
}
|
|
}
|
|
else
|
|
{
|
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pAttributes[dwIndex].Value = NULL;
|
|
}
|
|
|
|
break;
|
|
|
|
case raatPEAPFastRoamedSession:
|
|
case raatPEAPEmbeddedEAPTypeId:
|
|
default:
|
|
|
|
pAttributes[dwIndex].Value = pValue;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
pAttributes[dwIndex].dwLength = dwLength;
|
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pAttributes[dwIndex].raaType = raaType;
|
|
|
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return( NO_ERROR );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeInsertVSA
|
|
//
|
|
// Returns: NO_ERROR - Success
|
|
// Non-zero returns - Failure
|
|
//
|
|
// Description:
|
|
//
|
|
DWORD
|
|
RasAuthAttributeInsertVSA(
|
|
IN DWORD dwIndex,
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes,
|
|
IN DWORD dwVendorId,
|
|
IN DWORD dwLength,
|
|
IN PVOID pValue
|
|
)
|
|
{
|
|
if ( pValue != NULL )
|
|
{
|
|
pAttributes[dwIndex].Value = LocalAlloc( LPTR, dwLength+1+4 );
|
|
|
|
if ( pAttributes[dwIndex].Value == NULL )
|
|
{
|
|
return( GetLastError() );
|
|
}
|
|
|
|
HostToWireFormat32( dwVendorId, (PBYTE)(pAttributes[dwIndex].Value) );
|
|
|
|
CopyMemory( ((PBYTE)pAttributes[dwIndex].Value)+4,
|
|
(PBYTE)pValue,
|
|
dwLength );
|
|
|
|
pAttributes[dwIndex].dwLength = dwLength+4;
|
|
}
|
|
else
|
|
{
|
|
pAttributes[dwIndex].Value = NULL;
|
|
pAttributes[dwIndex].dwLength = 0;
|
|
}
|
|
|
|
pAttributes[dwIndex].raaType = raatVendorSpecific;
|
|
|
|
return( NO_ERROR );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeCopy
|
|
//
|
|
// Returns: Pointer to copy of attributes - Success
|
|
// NULL - Failure
|
|
//
|
|
// Description:
|
|
//
|
|
RAS_AUTH_ATTRIBUTE *
|
|
RasAuthAttributeCopy(
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes
|
|
)
|
|
{
|
|
RAS_AUTH_ATTRIBUTE * pAttributesCopy;
|
|
DWORD dwAttributesCount = 0;
|
|
DWORD dwIndex;
|
|
DWORD dwRetCode;
|
|
|
|
//
|
|
// Find out how many attributes there are
|
|
//
|
|
|
|
if ( pAttributes == NULL )
|
|
{
|
|
return( NULL );
|
|
}
|
|
|
|
for( dwIndex = 0; pAttributes[dwIndex].raaType != raatMinimum; dwIndex++ );
|
|
|
|
if ( ( pAttributesCopy = RasAuthAttributeCreate( dwIndex ) ) == NULL )
|
|
{
|
|
return( NULL );
|
|
}
|
|
|
|
for( dwIndex = 0; pAttributes[dwIndex].raaType != raatMinimum; dwIndex++ )
|
|
{
|
|
dwRetCode = RasAuthAttributeInsert( dwIndex,
|
|
pAttributesCopy,
|
|
pAttributes[dwIndex].raaType,
|
|
FALSE,
|
|
pAttributes[dwIndex].dwLength,
|
|
pAttributes[dwIndex].Value );
|
|
|
|
if ( dwRetCode != NO_ERROR )
|
|
{
|
|
RasAuthAttributeDestroy( pAttributesCopy );
|
|
|
|
SetLastError( dwRetCode );
|
|
|
|
return( NULL );
|
|
}
|
|
}
|
|
|
|
return( pAttributesCopy );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeCopyWithAlloc
|
|
//
|
|
// Returns: Pointer to copy of attributes - Success
|
|
// NULL - Failure
|
|
//
|
|
// Description: Copies the attribute list and allocs dwNumExtraAttributes
|
|
// extra blank attributes in the beginning. pAttributes can
|
|
// be NULL.
|
|
//
|
|
RAS_AUTH_ATTRIBUTE *
|
|
RasAuthAttributeCopyWithAlloc(
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes,
|
|
IN DWORD dwNumExtraAttributes
|
|
)
|
|
{
|
|
RAS_AUTH_ATTRIBUTE * pAttributesCopy;
|
|
DWORD dwAttributesCount = 0;
|
|
DWORD dwIndex;
|
|
DWORD dwRetCode;
|
|
|
|
if ( pAttributes == NULL )
|
|
{
|
|
pAttributesCopy = RasAuthAttributeCreate( dwNumExtraAttributes );
|
|
|
|
if ( pAttributesCopy == NULL )
|
|
{
|
|
return( NULL );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Find out how many attributes there are
|
|
//
|
|
|
|
for( dwIndex = 0;
|
|
pAttributes[dwIndex].raaType != raatMinimum;
|
|
dwIndex++ );
|
|
|
|
dwIndex += dwNumExtraAttributes;
|
|
|
|
if ( ( pAttributesCopy = RasAuthAttributeCreate( dwIndex ) ) == NULL )
|
|
{
|
|
return( NULL );
|
|
}
|
|
|
|
for( dwIndex = 0;
|
|
pAttributes[dwIndex].raaType != raatMinimum;
|
|
dwIndex++ )
|
|
{
|
|
dwRetCode = RasAuthAttributeInsert( dwIndex + dwNumExtraAttributes,
|
|
pAttributesCopy,
|
|
pAttributes[dwIndex].raaType,
|
|
FALSE,
|
|
pAttributes[dwIndex].dwLength,
|
|
pAttributes[dwIndex].Value );
|
|
|
|
if ( dwRetCode != NO_ERROR )
|
|
{
|
|
RasAuthAttributeDestroy( pAttributesCopy );
|
|
|
|
SetLastError( dwRetCode );
|
|
|
|
return( NULL );
|
|
}
|
|
}
|
|
}
|
|
|
|
return( pAttributesCopy );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeGetVendorSpecific
|
|
//
|
|
// Returns: Pointer to attribute
|
|
// NULL if it couldn't find it
|
|
//
|
|
// Description:
|
|
//
|
|
RAS_AUTH_ATTRIBUTE *
|
|
RasAuthAttributeGetVendorSpecific(
|
|
IN DWORD dwVendorId,
|
|
IN DWORD dwVendorType,
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes
|
|
)
|
|
{
|
|
HANDLE hAttribute;
|
|
RAS_AUTH_ATTRIBUTE * pAttribute;
|
|
|
|
//
|
|
// First search for the vendor specific attribute
|
|
//
|
|
|
|
pAttribute = RasAuthAttributeGetFirst( raatVendorSpecific,
|
|
pAttributes,
|
|
&hAttribute );
|
|
|
|
while ( pAttribute != NULL )
|
|
{
|
|
//
|
|
// If this attribute is of at least size to hold vendor Id/Type
|
|
//
|
|
|
|
if ( pAttribute->dwLength >= 8 )
|
|
{
|
|
//
|
|
// Does this have the correct VendorId
|
|
//
|
|
|
|
if (WireToHostFormat32( (PBYTE)(pAttribute->Value) ) == dwVendorId)
|
|
{
|
|
//
|
|
// Does this have the correct Vendor Type
|
|
//
|
|
|
|
if ( *(((PBYTE)(pAttribute->Value))+4) == dwVendorType )
|
|
{
|
|
return( pAttribute );
|
|
}
|
|
}
|
|
}
|
|
|
|
pAttribute = RasAuthAttributeGetNext( &hAttribute,
|
|
raatVendorSpecific );
|
|
}
|
|
|
|
return( NULL );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeReAlloc
|
|
//
|
|
// Returns: NO_ERROR - Success
|
|
// Non-zero returns - Failure
|
|
//
|
|
// Description: Will create an array of attributes plus one for the terminator
|
|
//
|
|
RAS_AUTH_ATTRIBUTE *
|
|
RasAuthAttributeReAlloc(
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes,
|
|
IN DWORD dwNumAttributes
|
|
)
|
|
{
|
|
DWORD dwIndex;
|
|
RAS_AUTH_ATTRIBUTE * pOutAttributes;
|
|
|
|
pOutAttributes = (RAS_AUTH_ATTRIBUTE *)
|
|
LocalReAlloc(
|
|
pAttributes,
|
|
sizeof( RAS_AUTH_ATTRIBUTE )*(1+dwNumAttributes),
|
|
LMEM_ZEROINIT );
|
|
|
|
|
|
if ( pOutAttributes == NULL )
|
|
{
|
|
return( NULL );
|
|
}
|
|
|
|
//
|
|
// Initialize the rest of the array.
|
|
//
|
|
|
|
for( dwIndex = 0; dwIndex < dwNumAttributes; dwIndex++ )
|
|
{
|
|
if ( pOutAttributes[dwIndex].raaType == raatMinimum )
|
|
{
|
|
while( dwIndex < dwNumAttributes )
|
|
{
|
|
pOutAttributes[dwIndex].raaType = raatReserved;
|
|
pOutAttributes[dwIndex].dwLength = 0;
|
|
pOutAttributes[dwIndex].Value = NULL;
|
|
|
|
dwIndex++;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Terminate the new array.
|
|
//
|
|
|
|
pOutAttributes[dwNumAttributes].raaType = raatMinimum;
|
|
pOutAttributes[dwNumAttributes].dwLength = 0;
|
|
pOutAttributes[dwNumAttributes].Value = NULL;
|
|
|
|
return( pOutAttributes );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeGetConcatString
|
|
//
|
|
// Returns: pointer to a LocalAlloc'ed string
|
|
//
|
|
// Description: Looks for attributes of type raaType in pAttributes. Combines
|
|
// them all into one string and returns the string. The string
|
|
// must be LocalFree'd. *pdwStringLength will contain the number
|
|
// of characters in the string.
|
|
//
|
|
CHAR *
|
|
RasAuthAttributeGetConcatString(
|
|
IN RAS_AUTH_ATTRIBUTE_TYPE raaType,
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes,
|
|
IN OUT DWORD * pdwStringLength
|
|
)
|
|
{
|
|
#define MAX_STR_LENGTH 1500
|
|
HANDLE hAttribute;
|
|
CHAR * pszReplyMessage = NULL;
|
|
RAS_AUTH_ATTRIBUTE * pAttribute;
|
|
DWORD dwBytesRemaining;
|
|
DWORD dwBytesToCopy;
|
|
|
|
do
|
|
{
|
|
*pdwStringLength = 0;
|
|
|
|
pAttribute = RasAuthAttributeGetFirst( raaType, pAttributes,
|
|
&hAttribute );
|
|
|
|
if ( NULL == pAttribute )
|
|
{
|
|
break;
|
|
}
|
|
|
|
pszReplyMessage = LocalAlloc( LPTR, MAX_STR_LENGTH + 1 );
|
|
|
|
if ( NULL == pszReplyMessage )
|
|
{
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Bytes remaining, excluding terminating NULL
|
|
//
|
|
|
|
dwBytesRemaining = MAX_STR_LENGTH;
|
|
|
|
while ( ( dwBytesRemaining > 0 )
|
|
&& ( NULL != pAttribute ) )
|
|
{
|
|
//
|
|
// This does not include the terminating NULL
|
|
//
|
|
|
|
dwBytesToCopy = pAttribute->dwLength;
|
|
|
|
if ( dwBytesToCopy > dwBytesRemaining )
|
|
{
|
|
dwBytesToCopy = dwBytesRemaining;
|
|
}
|
|
|
|
CopyMemory( pszReplyMessage + MAX_STR_LENGTH - dwBytesRemaining,
|
|
pAttribute->Value,
|
|
dwBytesToCopy );
|
|
|
|
dwBytesRemaining -= dwBytesToCopy;
|
|
|
|
pAttribute = RasAuthAttributeGetNext( &hAttribute,
|
|
raaType );
|
|
|
|
}
|
|
|
|
*pdwStringLength = MAX_STR_LENGTH - dwBytesRemaining;
|
|
}
|
|
while ( FALSE );
|
|
|
|
return( pszReplyMessage );
|
|
}
|
|
|
|
//**
|
|
//
|
|
// Call: RasAuthAttributeGetConcatVendorSpecific
|
|
//
|
|
// Returns: Pointer to a chunk of bytes
|
|
// NULL if it couldn't find it
|
|
//
|
|
// Description: Looks for attributes of type dwVendorType in pAttributes.
|
|
// Combines them all into the return value. The Value must be
|
|
// LocalFree'd.
|
|
//
|
|
BYTE *
|
|
RasAuthAttributeGetConcatVendorSpecific(
|
|
IN DWORD dwVendorId,
|
|
IN DWORD dwVendorType,
|
|
IN RAS_AUTH_ATTRIBUTE * pAttributes
|
|
)
|
|
{
|
|
DWORD dwMAX_ATTR_LENGTH = 1024;
|
|
HANDLE hAttribute;
|
|
RAS_AUTH_ATTRIBUTE * pAttribute;
|
|
BYTE* pbValue = NULL;
|
|
DWORD dwIndex = 0;
|
|
DWORD dwLength;
|
|
BOOL fFound = FALSE;
|
|
|
|
pbValue = LocalAlloc( LPTR, dwMAX_ATTR_LENGTH );
|
|
|
|
if ( NULL == pbValue )
|
|
{
|
|
return( NULL );
|
|
}
|
|
|
|
//
|
|
// First search for the vendor specific attribute
|
|
//
|
|
|
|
pAttribute = RasAuthAttributeGetFirst( raatVendorSpecific,
|
|
pAttributes,
|
|
&hAttribute );
|
|
|
|
while ( pAttribute != NULL )
|
|
{
|
|
//
|
|
// If this attribute is of at least size to hold vendor Id/Type
|
|
//
|
|
|
|
if ( pAttribute->dwLength >= 8 )
|
|
{
|
|
//
|
|
// Does this have the correct VendorId
|
|
//
|
|
|
|
if (WireToHostFormat32( (PBYTE)(pAttribute->Value) ) == dwVendorId)
|
|
{
|
|
//
|
|
// Does this have the correct Vendor Type
|
|
//
|
|
|
|
if ( *(((PBYTE)(pAttribute->Value))+4) == dwVendorType )
|
|
{
|
|
//
|
|
// Exclude Vendor-Type and Vendor-Length from the length
|
|
//
|
|
|
|
dwLength = *(((PBYTE)(pAttribute->Value))+5) - 2;
|
|
|
|
// If we overrun the buffer, we should increase it
|
|
if ( dwMAX_ATTR_LENGTH - dwIndex < dwLength )
|
|
{
|
|
BYTE *pbNewValue;
|
|
dwMAX_ATTR_LENGTH += 1024;
|
|
|
|
pbNewValue = LocalReAlloc(pbValue, dwMAX_ATTR_LENGTH, LMEM_ZEROINIT|LMEM_MOVEABLE);
|
|
|
|
// Bail if we can't get more memory
|
|
if( pbNewValue == NULL )
|
|
{
|
|
LocalFree( pbValue );
|
|
return( NULL );
|
|
}
|
|
|
|
pbValue = pbNewValue;
|
|
}
|
|
|
|
CopyMemory(
|
|
pbValue + dwIndex,
|
|
((PBYTE)(pAttribute->Value))+6,
|
|
dwLength );
|
|
|
|
dwIndex += dwLength;
|
|
|
|
fFound = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
pAttribute = RasAuthAttributeGetNext( &hAttribute,
|
|
raatVendorSpecific );
|
|
}
|
|
|
|
if ( fFound )
|
|
{
|
|
return( pbValue );
|
|
}
|
|
else
|
|
{
|
|
LocalFree( pbValue );
|
|
return( NULL );
|
|
}
|
|
}
|