705 lines
16 KiB
C
705 lines
16 KiB
C
/*++
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Copyright (C) 1994-98 Microsft Corporation. All rights reserved.
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Module Name:
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diag.c
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Abstract:
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This file contains helper routines to get the callerid/calledid
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and connect response.
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Author:
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Rao salapaka (raos) 23-Feb-1998
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Revision History:
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--*/
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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 <tapi.h>
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#include <rasman.h>
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#include <raserror.h>
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#include <mprlog.h>
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#include <rtutils.h>
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#include <media.h>
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#include <device.h>
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#include <rasmxs.h>
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#include <isdn.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include <string.h>
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#include "rastapi.h"
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#include "reghelp.h"
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#include <unimodem.h>
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/*++
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Routine Description:
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Extract CallerID and CalledID information if
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available.
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Arguments:
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port - The tapi port on which the call was made
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/ on which the call came in
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pLineCallInfo - the LINECALLINFO associated with
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this call
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pdwRequiredSize - pointer to buffer to receive the
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size of buffer required to hold
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the callerid and called id info.
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pConnectInfo - pointer to the RASTAPI_CONNECT_INFO struct
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where the information about the
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callerid and called id will be filledin.
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If this is not NULL then it is assumed
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that the buffer is big enough to store
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the callerid and called id iformation.
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Return Value:
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ERROR_SUCCESS if successful
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--*/
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DWORD
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DwGetIDInformation(
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TapiPortControlBlock *port,
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LINECALLINFO *pLineCallInfo,
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DWORD *pdwRequiredSize,
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RASTAPI_CONNECT_INFO *pConnectInfo
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)
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{
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DWORD dwRequiredSize = 0;
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DWORD dwErr = ERROR_SUCCESS;
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RasTapiTrace("DwGetIDInformation");
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#if DBG
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RasTapiTrace ("RasTapiCallback: connected on %s",
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port->TPCB_Name );
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RasTapiTrace("RasTapiCallback: CallerIDFlags=0x%x",
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pLineCallInfo->dwCallerIDFlags);
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RasTapiTrace("RasTapiCallback: CalledIDFlags=0x%x",
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pLineCallInfo->dwCalledIDFlags);
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RasTapiTrace("RasTapiCallback: dwNeededSize=%d",
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pLineCallInfo->dwNeededSize);
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RasTapiTrace("RasTapiCallback: dwUsedSize=%d",
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pLineCallInfo->dwUsedSize);
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RasTapiTrace("RasTapiCallback: dwCallerIDOffset=%d",
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pLineCallInfo->dwCallerIDOffset);
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RasTapiTrace("RasTapiCallback: dwCalledIdOffset=%d",
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pLineCallInfo->dwCalledIDOffset);
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RasTapiTrace("RasTapiCallback: dwCallerIdSize=%d",
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pLineCallInfo->dwCallerIDSize);
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RasTapiTrace("RasTapiCallback: dwCalledIdSize=%d",
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pLineCallInfo->dwCalledIDSize);
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RasTapiTrace("RasTapiCallback: dwCallerIdNameSize=%d",
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pLineCallInfo->dwCallerIDNameSize);
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RasTapiTrace("RasTapiCallback: dwCallerIdNameOffset=%d",
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pLineCallInfo->dwCallerIDNameOffset);
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#endif
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//
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// Find the size of the buffer to allocate
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//
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if(pLineCallInfo->dwCallerIDFlags & LINECALLPARTYID_ADDRESS)
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{
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dwRequiredSize += pLineCallInfo->dwCallerIDSize;
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}
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if(pLineCallInfo->dwCalledIDFlags & LINECALLPARTYID_ADDRESS)
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{
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dwRequiredSize += pLineCallInfo->dwCalledIDSize;
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}
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if( (NULL == pConnectInfo)
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|| (0 == dwRequiredSize))
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{
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goto done;
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}
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//
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// If pConnectInfo is != NULL it is assumed
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// that the buffer is large enough to put
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// the CALLER/CALLED ID information in it.
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//
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if( ( pLineCallInfo->dwCallerIDFlags
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& LINECALLPARTYID_ADDRESS )
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&& pLineCallInfo->dwCallerIDSize)
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{
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//
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// Copy the caller id information
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//
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pConnectInfo->dwCallerIdSize =
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pLineCallInfo->dwCallerIDSize;
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pConnectInfo->dwCallerIdOffset =
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FIELD_OFFSET(RASTAPI_CONNECT_INFO, abdata);
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memcpy( pConnectInfo->abdata,
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(PBYTE) ((PBYTE) pLineCallInfo
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+ pLineCallInfo->dwCallerIDOffset),
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pLineCallInfo->dwCallerIDSize);
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}
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else
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{
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RasTapiTrace("RasTapiCallback: caller id "
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"info. not avail");
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}
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if( ( pLineCallInfo->dwCalledIDFlags
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& LINECALLPARTYID_ADDRESS)
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&& pLineCallInfo->dwCalledIDSize)
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{
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//
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// Copy the called id information
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//
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pConnectInfo->dwCalledIdSize =
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pLineCallInfo->dwCalledIDSize;
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pConnectInfo->dwCalledIdOffset =
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FIELD_OFFSET(RASTAPI_CONNECT_INFO, abdata)
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+ pConnectInfo->dwCallerIdSize;
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memcpy( (PBYTE)
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((PBYTE) pConnectInfo
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+ pConnectInfo->dwCalledIdOffset),
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(PBYTE) ((PBYTE) pLineCallInfo
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+ pLineCallInfo->dwCalledIDOffset),
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pLineCallInfo->dwCalledIDSize);
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}
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else
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{
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RasTapiTrace("RasTapiCallback: called id "
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"info. not avail");
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}
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done:
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if(pdwRequiredSize)
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{
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*pdwRequiredSize = dwRequiredSize;
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}
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RasTapiTrace("DwGetIDInformation. %d", dwErr);
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return dwErr;
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}
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/*++
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Routine Description:
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Extract the connect responses from lpLineDiagnostics(see
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MODEM_KEYTYPE_AT_COMMAND_RESPONSE,MODEMDIAGKEY_ATRESP_CONNECT)
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and copy them in lpBuffer
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Arguments:
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lpLineDiagnostics - diagnostic structure
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lpBuffer - destination buffer (can be NULL), upon
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return contains null terminated ASCII
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strings
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dwBufferSize - size in bytes of the buffer pointed
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by lpBuffer
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lpdwNeededSize - pointer (can be NULL) to a dword to
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receive the needed size
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Return Value:
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Returns the number of bytes copied into lpBuffer
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--*/
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DWORD
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DwGetConnectResponses(
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LINEDIAGNOSTICS *lpLineDiagnostics,
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LPBYTE lpBuffer,
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DWORD dwBufferSize,
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LPDWORD lpdwNeededSize
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)
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{
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DWORD dwBytesCopied;
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DWORD dwNeededSize;
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LINEDIAGNOSTICS *lpstructDiagnostics;
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RasTapiTrace("DwGetConnectresponses");
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dwBytesCopied = 0;
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dwNeededSize = 0;
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lpstructDiagnostics = lpLineDiagnostics;
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while (NULL != lpstructDiagnostics)
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{
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LINEDIAGNOSTICS_PARSEREC *lpParsedDiagnostics;
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LINEDIAGNOSTICSOBJECTHEADER *lpParsedHeader;
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DWORD dwNumItems;
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DWORD dwIndex;
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//
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// check the signature for modem diagnostics
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//
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lpParsedHeader = PARSEDDIAGNOSTICS_HDR(lpstructDiagnostics);
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if ( (lpstructDiagnostics->hdr.dwSig
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!= LDSIG_LINEDIAGNOSTICS)
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|| (lpstructDiagnostics->dwDomainID
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!= DOMAINID_MODEM)
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|| !IS_VALID_PARSEDDIAGNOSTICS_HDR(lpParsedHeader))
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{
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goto NextStructure;
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}
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//
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// get parsed structure info
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//
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dwNumItems = PARSEDDIAGNOSTICS_NUM_ITEMS(lpParsedHeader);
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lpParsedDiagnostics = PARSEDDIAGNOSTICS_DATA(lpstructDiagnostics);
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//
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// iterate the array of LINEDIAGNOSTICS_PARSERECs
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//
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for (dwIndex = 0; dwIndex < dwNumItems; dwIndex++)
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{
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DWORD dwThisLength;
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LPSTR lpszThisString;
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//
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// check is a connect response
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//
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if ( (lpParsedDiagnostics[dwIndex].dwKeyType !=
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MODEM_KEYTYPE_AT_COMMAND_RESPONSE)
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|| (lpParsedDiagnostics[dwIndex].dwKey !=
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MODEMDIAGKEY_ATRESP_CONNECT)
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|| !(lpParsedDiagnostics[dwIndex].dwFlags &
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fPARSEKEYVALUE_ASCIIZ_STRING))
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{
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continue;
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}
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//
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// get the string, dwValue offset from the beginning
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// of lpParsedDiagnostics
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//
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lpszThisString = (LPSTR) ( (LPBYTE) lpParsedHeader +
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lpParsedDiagnostics[dwIndex].dwValue);
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dwThisLength = strlen(lpszThisString) + 1;
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if (dwThisLength == 1)
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{
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continue;
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}
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//
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// update needed size
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//
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dwNeededSize += dwThisLength;
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//
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// copy to buffer, if large enough
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//
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if ( NULL != lpBuffer
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&& dwBytesCopied < dwBufferSize - 1)
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{
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DWORD dwBytesToCopy;
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//
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// dwThisLength includes null char, so
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// does dwBytesToCopy
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//
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dwBytesToCopy = min(dwThisLength,
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dwBufferSize
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- 1
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- dwBytesCopied);
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if (dwBytesToCopy > 1)
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{
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memcpy(lpBuffer + dwBytesCopied,
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lpszThisString,
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dwBytesToCopy - 1);
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lpBuffer[dwBytesCopied + dwBytesToCopy - 1] = 0;
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dwBytesCopied += dwBytesToCopy;
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}
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}
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}
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NextStructure:
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if (lpstructDiagnostics->hdr.dwNextObjectOffset != 0)
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{
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lpstructDiagnostics = (LINEDIAGNOSTICS *)
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(((LPBYTE) lpstructDiagnostics) +
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lpstructDiagnostics->hdr.dwNextObjectOffset);
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}
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else
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{
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lpstructDiagnostics = NULL;
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}
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}
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//
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// the final null only if data is not empty
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//
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if (dwNeededSize > 0)
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{
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dwNeededSize++;
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if ( lpBuffer != NULL
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&& dwBytesCopied < dwBufferSize)
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{
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lpBuffer[dwBytesCopied] = 0;
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dwBytesCopied++;
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}
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}
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if (lpdwNeededSize != NULL)
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{
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*lpdwNeededSize = dwNeededSize;
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}
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RasTapiTrace("DwGetConnectResponses done");
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return dwBytesCopied;
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}
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/*++
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Routine Description:
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Extract the connect response information
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Arguments:
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pLineCallInfo - the LINECALLINFO associated with
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this call
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hCall - handle to call
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pdwRequiredSize - This is in/out parameter. As IN it
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specifies the size of pBuffer. As
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OUT it contains the size required
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to store the connect response.
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pBuffer - buffer to receive the connect response. This
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can be NULL.
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Return Value:
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ERROR_SUCCESS if successful
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--*/
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DWORD
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DwGetConnectResponseInformation(
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LINECALLINFO *pLineCallInfo,
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HCALL hCall,
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DWORD *pdwRequiredSize,
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BYTE *pBuffer
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)
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{
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LONG lr = ERROR_SUCCESS;
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BYTE bvar[100];
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LPVARSTRING pvar = (LPVARSTRING) bvar;
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LINEDIAGNOSTICS *pLineDiagnostics;
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DWORD dwConnectResponseSize = 0;
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RasTapiTrace("DwGetConnectResponseInformation");
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//
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// Get the diagnostics information
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//
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ZeroMemory (pvar, sizeof(*pvar));
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pvar->dwTotalSize = sizeof(bvar);
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lr = lineGetID(
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pLineCallInfo->hLine,
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pLineCallInfo->dwAddressID,
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hCall,
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LINECALLSELECT_CALL,
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pvar,
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szUMDEVCLASS_TAPI_LINE_DIAGNOSTICS);
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if( (LINEERR_STRUCTURETOOSMALL == lr)
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|| pvar->dwNeededSize > sizeof(bvar))
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{
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DWORD dwNeededSize = pvar->dwNeededSize;
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//
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// Allocate the required size
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//
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pvar = LocalAlloc(
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LPTR,
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dwNeededSize);
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if(NULL == pvar)
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{
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lr = (LONG) GetLastError();
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goto done;
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}
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ZeroMemory (pvar, sizeof(*pvar));
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pvar->dwTotalSize = dwNeededSize;
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lr = lineGetID(
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pLineCallInfo->hLine,
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pLineCallInfo->dwAddressID,
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hCall,
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LINECALLSELECT_CALL,
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pvar,
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szUMDEVCLASS_TAPI_LINE_DIAGNOSTICS);
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if(ERROR_SUCCESS != lr)
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{
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goto done;
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}
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}
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else if(ERROR_SUCCESS != lr)
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{
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goto done;
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}
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pLineDiagnostics = (LINEDIAGNOSTICS *) ((LPBYTE) pvar
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+ pvar->dwStringOffset);
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(void) DwGetConnectResponses(
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pLineDiagnostics,
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pBuffer,
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*pdwRequiredSize,
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&dwConnectResponseSize);
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done:
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if(bvar != (LPBYTE) pvar)
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{
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LocalFree(pvar);
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}
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*pdwRequiredSize = dwConnectResponseSize;
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RasTapiTrace("DwGetConnectResponseInformation. 0x%x",
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lr);
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return (DWORD) lr;
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}
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/*++
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Routine Description:
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Extract the connection information. This includes
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extracing the caller id / called id information
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and the connect response information for modems.
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Arguments:
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port - pointer to the rastapi port on which the
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call came in / was made
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hCall - handle to call
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pLineCallInfo - pointer to the LINECALLINFO structure
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associated with this call.
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Return Value:
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ERROR_SUCCESS if succcessful
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--*/
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DWORD
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DwGetConnectInfo(
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TapiPortControlBlock *port,
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HCALL hCall,
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LINECALLINFO *pLineCallInfo
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)
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{
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DWORD dwErr = ERROR_SUCCESS;
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DWORD dwRequiredSize = 0;
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DWORD dwConnectResponseSize = 0;
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RASTAPI_CONNECT_INFO *pConnectInfo = NULL;
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RasTapiTrace("DwGetConnectInfo");
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//
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// Get the size required to store the
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// caller/called id information
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//
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dwErr = DwGetIDInformation(port,
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pLineCallInfo,
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&dwRequiredSize,
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NULL);
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if(ERROR_SUCCESS != dwErr)
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{
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goto done;
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}
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RasTapiTrace("SizeRequired for CallID=%d",
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dwRequiredSize);
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if(0 == _stricmp(port->TPCB_DeviceType, "modem"))
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{
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//
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// Get the size required to store connect
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// response if this is a modem
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//
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dwErr = DwGetConnectResponseInformation(
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pLineCallInfo,
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hCall,
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&dwConnectResponseSize,
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NULL);
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if(NO_ERROR != dwErr)
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{
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goto done;
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}
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RasTapiTrace("SizeRequired for ConnectResponse=%d",
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dwConnectResponseSize);
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}
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if(0 == (dwRequiredSize + dwConnectResponseSize))
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{
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//
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// None of the information is available.
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// bail.
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//
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RasTapiTrace("CallIDSize=ConnectResponseSize=0");
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goto done;
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}
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dwRequiredSize += ( dwConnectResponseSize
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+ sizeof(RASTAPI_CONNECT_INFO));
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//
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// Allocate the buffer
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//
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pConnectInfo = (RASTAPI_CONNECT_INFO *) LocalAlloc(
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LPTR,
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dwRequiredSize);
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if(NULL == pConnectInfo)
|
|
{
|
|
dwErr = GetLastError();
|
|
goto done;
|
|
}
|
|
|
|
//
|
|
// Get the actual information
|
|
//
|
|
dwErr = DwGetIDInformation(
|
|
port,
|
|
pLineCallInfo,
|
|
NULL,
|
|
pConnectInfo);
|
|
|
|
if(NO_ERROR != dwErr)
|
|
{
|
|
goto done;
|
|
}
|
|
|
|
//
|
|
// Get Connect response if its a modem
|
|
//
|
|
if(0 == _stricmp(port->TPCB_DeviceType, "modem"))
|
|
{
|
|
|
|
pConnectInfo->dwConnectResponseOffset =
|
|
FIELD_OFFSET(RASTAPI_CONNECT_INFO, abdata)
|
|
+ pConnectInfo->dwCallerIdSize
|
|
+ pConnectInfo->dwCalledIdSize;
|
|
|
|
pConnectInfo->dwConnectResponseSize =
|
|
dwConnectResponseSize;
|
|
|
|
dwErr = DwGetConnectResponseInformation(
|
|
pLineCallInfo,
|
|
hCall,
|
|
&dwConnectResponseSize,
|
|
(PBYTE) ((PBYTE) pConnectInfo
|
|
+ pConnectInfo->dwConnectResponseOffset));
|
|
|
|
if(ERROR_SUCCESS != dwErr)
|
|
{
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
port->TPCB_pConnectInfo = pConnectInfo;
|
|
|
|
done:
|
|
|
|
if( NO_ERROR != dwErr
|
|
&& NULL != pConnectInfo)
|
|
{
|
|
LocalFree(pConnectInfo);
|
|
}
|
|
|
|
RasTapiTrace("DwGetConnectInfo. 0x%x",
|
|
dwErr);
|
|
|
|
return dwErr;
|
|
|
|
}
|
|
|