259 lines
6.5 KiB
C
259 lines
6.5 KiB
C
|
/******************************************************************************
|
|||
|
|
*
|
|||
|
|
* File: h245send.c
|
|||
|
|
*
|
|||
|
|
* INTEL Corporation Proprietary Information
|
|||
|
|
* Copyright (c) 1994, 1995, 1996 Intel Corporation.
|
|||
|
|
*
|
|||
|
|
* This listing is supplied under the terms of a license agreement
|
|||
|
|
* with INTEL Corporation and may not be used, copied, nor disclosed
|
|||
|
|
* except in accordance with the terms of that agreement.
|
|||
|
|
*
|
|||
|
|
*****************************************************************************/
|
|||
|
|
|
|||
|
|
/******************************************************************************
|
|||
|
|
*
|
|||
|
|
* $Workfile: h245asn.c $
|
|||
|
|
* $Revision: 1.4 $
|
|||
|
|
* $Modtime: 17 Jan 1997 14:31:20 $
|
|||
|
|
* $Log: S:\sturgeon\src\h245\src\vcs\h245asn.c_v $
|
|||
|
|
*
|
|||
|
|
* Rev 1.2 28 May 1996 14:25:22 EHOWARDX
|
|||
|
|
* Tel Aviv update.
|
|||
|
|
*
|
|||
|
|
* Rev 1.1 21 May 1996 13:39:28 EHOWARDX
|
|||
|
|
* Added LOGGING switch to log PDUs to the file H245.OUT.
|
|||
|
|
* Add /D "LOGGING" to project options to enable this feature.
|
|||
|
|
*
|
|||
|
|
* Rev 1.0 09 May 1996 21:06:20 EHOWARDX
|
|||
|
|
* Initial revision.
|
|||
|
|
*
|
|||
|
|
* Rev 1.5.1.2 09 May 1996 19:34:44 EHOWARDX
|
|||
|
|
* Redesigned locking logic.
|
|||
|
|
* Simplified link API.
|
|||
|
|
*
|
|||
|
|
* Rev 1.5.1.0 23 Apr 1996 14:42:44 EHOWARDX
|
|||
|
|
* Added check for ASN.1 initialized.
|
|||
|
|
*
|
|||
|
|
* Rev 1.5 13 Mar 1996 11:33:06 DABROWN1
|
|||
|
|
* Enable logging for ring0
|
|||
|
|
*
|
|||
|
|
* Rev 1.4 07 Mar 1996 23:20:14 dabrown1
|
|||
|
|
*
|
|||
|
|
* Modifications required for ring0/ring3 compatiblity
|
|||
|
|
*
|
|||
|
|
* Rev 1.3 06 Mar 1996 13:13:52 DABROWN1
|
|||
|
|
*
|
|||
|
|
* added #define _DLL for SPOX build
|
|||
|
|
*
|
|||
|
|
* Rev 1.2 23 Feb 1996 13:54:42 DABROWN1
|
|||
|
|
*
|
|||
|
|
* added tracing functions
|
|||
|
|
*
|
|||
|
|
* Rev 1.1 21 Feb 1996 16:52:08 DABROWN1
|
|||
|
|
*
|
|||
|
|
* Removed call to h245_asn1free, now uses generic MemFree
|
|||
|
|
*
|
|||
|
|
* Rev 1.0 09 Feb 1996 17:35:20 cjutzi
|
|||
|
|
* Initial revision.
|
|||
|
|
*
|
|||
|
|
*****************************************************************************/
|
|||
|
|
|
|||
|
|
#ifndef STRICT
|
|||
|
|
#define STRICT
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
/***********************/
|
|||
|
|
/* SYSTEM INCLUDES */
|
|||
|
|
/***********************/
|
|||
|
|
#include <stdlib.h>
|
|||
|
|
#include <stddef.h>
|
|||
|
|
#include <limits.h>
|
|||
|
|
|
|||
|
|
#include "precomp.h"
|
|||
|
|
|
|||
|
|
/***********************/
|
|||
|
|
/* H245 INCLUDES */
|
|||
|
|
/***********************/
|
|||
|
|
#ifdef _IA_SPOX_
|
|||
|
|
# define _DLL
|
|||
|
|
#endif //_IA_SPOX_
|
|||
|
|
|
|||
|
|
#include "h245asn1.h"
|
|||
|
|
#include "h245sys.x"
|
|||
|
|
#include "sendrcv.x"
|
|||
|
|
#include "h245com.h"
|
|||
|
|
|
|||
|
|
/***********************/
|
|||
|
|
/* ASN1 INCLUDES */
|
|||
|
|
/***********************/
|
|||
|
|
|
|||
|
|
/***********************/
|
|||
|
|
/* S/R GLOBALS */
|
|||
|
|
/***********************/
|
|||
|
|
#ifdef _IA_SPOX_
|
|||
|
|
# define MAKELONG(a, b) ((LONG)(((WORD)(a)) | ((DWORD)((WORD)(b))) << 16))
|
|||
|
|
# define HWND void*
|
|||
|
|
# undef _DLL
|
|||
|
|
#endif //_IA_SPOX
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
#define ASN1_FLAGS 0
|
|||
|
|
|
|||
|
|
int initializeASN1(ASN1_CODER_INFO *pWorld)
|
|||
|
|
{
|
|||
|
|
int nResult;
|
|||
|
|
|
|||
|
|
nResult = H245_InitWorld(pWorld);
|
|||
|
|
|
|||
|
|
return (MAKELONG(nResult, 0));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int terminateASN1(ASN1_CODER_INFO *pWorld)
|
|||
|
|
{
|
|||
|
|
H245_TermWorld(pWorld);
|
|||
|
|
|
|||
|
|
H245TRACE(0, 10, "Unloading ASN.1 libraries", 0);
|
|||
|
|
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// THE FOLLOWING IS ADDED FOR TELES ASN.1 INTEGRATION
|
|||
|
|
|
|||
|
|
int H245_InitModule(void)
|
|||
|
|
{
|
|||
|
|
H245ASN_Module_Startup();
|
|||
|
|
return (H245ASN_Module != NULL) ? ASN1_SUCCESS : ASN1_ERR_MEMORY;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int H245_TermModule(void)
|
|||
|
|
{
|
|||
|
|
H245ASN_Module_Cleanup();
|
|||
|
|
return ASN1_SUCCESS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int H245_InitWorld(ASN1_CODER_INFO *pWorld)
|
|||
|
|
{
|
|||
|
|
int rc;
|
|||
|
|
|
|||
|
|
ZeroMemory(pWorld, sizeof(*pWorld));
|
|||
|
|
|
|||
|
|
if (H245ASN_Module == NULL)
|
|||
|
|
{
|
|||
|
|
return ASN1_ERR_BADARGS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
rc = ASN1_CreateEncoder(
|
|||
|
|
H245ASN_Module, // ptr to mdule
|
|||
|
|
&(pWorld->pEncInfo), // ptr to encoder info
|
|||
|
|
NULL, // buffer ptr
|
|||
|
|
0, // buffer size
|
|||
|
|
NULL); // parent ptr
|
|||
|
|
if (rc == ASN1_SUCCESS)
|
|||
|
|
{
|
|||
|
|
ASSERT(pWorld->pEncInfo != NULL);
|
|||
|
|
rc = ASN1_CreateDecoder(
|
|||
|
|
H245ASN_Module, // ptr to mdule
|
|||
|
|
&(pWorld->pDecInfo), // ptr to decoder info
|
|||
|
|
NULL, // buffer ptr
|
|||
|
|
0, // buffer size
|
|||
|
|
NULL); // parent ptr
|
|||
|
|
ASSERT(pWorld->pDecInfo != NULL);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (rc != ASN1_SUCCESS)
|
|||
|
|
{
|
|||
|
|
H245_TermWorld(pWorld);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return rc;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int H245_TermWorld(ASN1_CODER_INFO *pWorld)
|
|||
|
|
{
|
|||
|
|
if (H245ASN_Module == NULL)
|
|||
|
|
{
|
|||
|
|
return ASN1_ERR_BADARGS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
ASN1_CloseEncoder(pWorld->pEncInfo);
|
|||
|
|
ASN1_CloseDecoder(pWorld->pDecInfo);
|
|||
|
|
|
|||
|
|
ZeroMemory(pWorld, sizeof(*pWorld));
|
|||
|
|
|
|||
|
|
return ASN1_SUCCESS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int H245_Encode(ASN1_CODER_INFO *pWorld, void *pStruct, int nPDU, ASN1_BUF *pBuf)
|
|||
|
|
{
|
|||
|
|
int rc;
|
|||
|
|
ASN1encoding_t pEncInfo = pWorld->pEncInfo;
|
|||
|
|
BOOL fBufferSupplied = (pBuf->value != NULL) && (pBuf->length != 0);
|
|||
|
|
DWORD dwFlags = fBufferSupplied ? ASN1ENCODE_SETBUFFER : ASN1ENCODE_ALLOCATEBUFFER;
|
|||
|
|
|
|||
|
|
// clean up out parameters
|
|||
|
|
if (! fBufferSupplied)
|
|||
|
|
{
|
|||
|
|
pBuf->length = 0;
|
|||
|
|
pBuf->value = NULL;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
rc = ASN1_Encode(
|
|||
|
|
pEncInfo, // ptr to encoder info
|
|||
|
|
pStruct, // pdu data structure
|
|||
|
|
nPDU, // pdu id
|
|||
|
|
dwFlags, // flags
|
|||
|
|
pBuf->value, // buffer
|
|||
|
|
pBuf->length); // buffer size if provided
|
|||
|
|
if (ASN1_SUCCEEDED(rc))
|
|||
|
|
{
|
|||
|
|
if (fBufferSupplied)
|
|||
|
|
{
|
|||
|
|
ASSERT(pBuf->value == pEncInfo->buf);
|
|||
|
|
ASSERT(pBuf->length >= pEncInfo->len);
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
pBuf->value = pEncInfo->buf; // buffer to encode into
|
|||
|
|
}
|
|||
|
|
pBuf->length = pEncInfo->len; // len of encoded data in buffer
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
ASSERT(FALSE);
|
|||
|
|
}
|
|||
|
|
return rc;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int H245_Decode(ASN1_CODER_INFO *pWorld, void **ppStruct, int nPDU, ASN1_BUF *pBuf)
|
|||
|
|
{
|
|||
|
|
ASN1decoding_t pDecInfo = pWorld->pDecInfo;
|
|||
|
|
BYTE *pEncoded = pBuf->value;
|
|||
|
|
ULONG cbEncodedSize = pBuf->length;
|
|||
|
|
|
|||
|
|
int rc = ASN1_Decode(
|
|||
|
|
pDecInfo, // ptr to encoder info
|
|||
|
|
ppStruct, // pdu data structure
|
|||
|
|
nPDU, // pdu id
|
|||
|
|
ASN1DECODE_SETBUFFER, // flags
|
|||
|
|
pEncoded, // do not provide buffer
|
|||
|
|
cbEncodedSize); // buffer size if provided
|
|||
|
|
if (ASN1_SUCCEEDED(rc))
|
|||
|
|
{
|
|||
|
|
ASSERT(pDecInfo->pos > pDecInfo->buf);
|
|||
|
|
pBuf->length -= (ULONG)(pDecInfo->pos - pDecInfo->buf);
|
|||
|
|
pBuf->value = pDecInfo->pos;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
ASSERT(FALSE);
|
|||
|
|
*ppStruct = NULL;
|
|||
|
|
}
|
|||
|
|
return rc;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|