public int createConnectSpdu(IsoConnectionParameters isoParameters, byte[] buffer, byte[] payload, int payloadLength)
{
int offset = 0;
int lengthOffset;
buffer[offset++] = 13; /* CONNECT SPDU */
lengthOffset = offset;
offset++; /* Skip byte for length - fill it later */
calledSessionSelector = isoParameters.remoteSSelector;
callingSessionSelector = isoParameters.localSSelector;
offset = encodeConnectAcceptItem(buffer, offset, 0);
offset = encodeSessionRequirement(buffer, offset);
offset = encodeCallingSessionSelector(buffer, offset);
offset = encodeCalledSessionSelector(buffer, offset);
offset = encodeSessionUserData(buffer, offset, (byte)payloadLength);
int spduLength = (offset - lengthOffset - 1) + payloadLength;
buffer[lengthOffset] = (byte)spduLength;
Array.Copy(payload, 0, buffer, offset, payloadLength);
return(payloadLength + offset);
}
void Reset(IsoConnectionParameters cp)
{
m_COTP_dstref = 0x0000;
m_COTP_srcref = 0x0008;
m_COTP_option = 0x00;
options = new CotpOptions(cp);
}
public int createConnectPdu(IsoConnectionParameters parameters, byte[] buffer, byte[] payload, int payloadLength)
{
acseContextId = 1;
mmsContextId = 3;
callingPresentationSelector = parameters.localPSelector;
calledPresentationSelector = parameters.remotePSelector;
return(createConnectPdu(buffer, payload, payloadLength));
}
public CotpOptions(IsoConnectionParameters cp)
{
if (cp == null)
{
tSelDst = new TSelector(2, 0x0001);
tSelSrc = new TSelector(2, 0x0000);
tpduSize = 0x0a; // 1024 byte max PDU size
}
else
{
tSelDst = cp.remoteTSelector;
tSelSrc = cp.localTSelector;
tpduSize = 0x0a; // 1024 byte max PDU size
}
}
public int createAssociateRequestMessage(IsoConnectionParameters isoParameters, byte[] buffer, int bufIndex, byte[] payload, int payloadLength)
{
int authValueLength;
int authValueStringLength = 0;
int passwordLength = 0;
int contentLength = 0;
/* application context name */
contentLength += 9;
int calledAEQualifierLength = 0;
if (isoParameters.remoteApTitleLen > 0)
{
/* called AP title */
contentLength += (4 + isoParameters.remoteApTitleLen);
calledAEQualifierLength = IsoUtil.BerEncoder_UInt32determineEncodedSize((uint)isoParameters.remoteAEQualifier);
/* called AP qualifier */
contentLength += (4 + calledAEQualifierLength);
// Добавки Несговорова
contentLength += 5;
contentLength += 5;
}
int callingAEQualifierLength = 0;
if (isoParameters.localApTitleLen > 0)
{
/* calling AP title */
contentLength += (4 + isoParameters.localApTitleLen);
callingAEQualifierLength = IsoUtil.BerEncoder_UInt32determineEncodedSize((uint)isoParameters.localAEQualifier);
/* calling AP qualifier */
contentLength += (4 + callingAEQualifierLength);
// Добавки Несговорова
contentLength += 5;
contentLength += 5;
}
if (isoParameters.acseAuthParameter != null)
{
/* sender ACSE requirements */
contentLength += 4;
/* mechanism name */
contentLength += 5;
/* authentication value */
if (isoParameters.acseAuthParameter.mechanism == AcseAuthenticationMechanism.ACSE_AUTH_PASSWORD)
{
contentLength += 2;
//if (authParameter.value.password.passwordLength == 0)
passwordLength = isoParameters.acseAuthParameter.passwordLength;
authValueStringLength = IsoUtil.BerEncoder_determineLengthSize((uint)passwordLength);
contentLength += passwordLength + authValueStringLength;
authValueLength = IsoUtil.BerEncoder_determineLengthSize((uint)(passwordLength + authValueStringLength + 1));
contentLength += authValueLength;
}
else
{
contentLength += 2;
}
}
/* user information */
int userInfoLength = 0;
/* single ASN1 type tag */
userInfoLength += payloadLength;
userInfoLength += 1;
userInfoLength += IsoUtil.BerEncoder_determineLengthSize((uint)payloadLength);
// Добавки Несговорова
userInfoLength += 2;
userInfoLength += 2;
/* indirect reference */
userInfoLength += 1;
userInfoLength += 2;
/* association data */
int assocDataLength = userInfoLength;
userInfoLength += IsoUtil.BerEncoder_determineLengthSize((uint)assocDataLength);
userInfoLength += 1;
/* user information */
int userInfoLen = userInfoLength;
userInfoLength += IsoUtil.BerEncoder_determineLengthSize((uint)userInfoLength);
userInfoLength += 1;
contentLength += userInfoLength;
int bufPos = 0;
bufPos = IsoUtil.BerEncoder_encodeTL(0x60, (uint)contentLength, buffer, bufPos);
/* application context name */
bufPos = IsoUtil.BerEncoder_encodeTL(0xa1, 7, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x06, 5, buffer, bufPos);
//memcpy(buffer + bufPos, appContextNameMms, 5);
appContextNameMms.CopyTo(buffer, bufPos);
bufPos += 5;
if (isoParameters.remoteApTitleLen > 0)
{
/* called AP title */
bufPos = IsoUtil.BerEncoder_encodeTL(0xa2, (uint)isoParameters.remoteApTitleLen + 2, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x06, (uint)isoParameters.remoteApTitleLen, buffer, bufPos);
//memcpy(buffer + bufPos, isoParameters.remoteApTitle, isoParameters.remoteApTitleLen);
isoParameters.remoteApTitle.CopyTo(buffer, bufPos);
bufPos += isoParameters.remoteApTitleLen;
/* called AE qualifier */
bufPos = IsoUtil.BerEncoder_encodeTL(0xa3, (uint)calledAEQualifierLength + 2, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x02, (uint)calledAEQualifierLength, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeUInt32((uint)isoParameters.remoteAEQualifier, buffer, bufPos);
}
if (isoParameters.localApTitleLen > 0)
{
/* calling AP title */
bufPos = IsoUtil.BerEncoder_encodeTL(0xa6, (uint)isoParameters.localApTitleLen + 2, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x06, (uint)isoParameters.localApTitleLen, buffer, bufPos);
//memcpy(buffer + bufPos, isoParameters.localApTitle, isoParameters.localApTitleLen);
isoParameters.localApTitle.CopyTo(buffer, bufPos);
bufPos += isoParameters.localApTitleLen;
/* calling AE qualifier */
bufPos = IsoUtil.BerEncoder_encodeTL(0xa7, (uint)callingAEQualifierLength + 2, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x02, (uint)callingAEQualifierLength, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeUInt32((uint)isoParameters.localAEQualifier, buffer, bufPos);
// Добавки Несговорова
bufPos = IsoUtil.BerEncoder_encodeTL(0xa4, (uint)calledAEQualifierLength + 2, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x02, (uint)calledAEQualifierLength, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeUInt32(0, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0xa5, (uint)calledAEQualifierLength + 2, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x02, (uint)calledAEQualifierLength, buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeUInt32(0, buffer, bufPos);
}
if (isoParameters.acseAuthParameter != null)
{
/* sender requirements */
bufPos = IsoUtil.BerEncoder_encodeTL(0x8a, 2, buffer, bufPos);
buffer[bufPos++] = 0x04;
if (isoParameters.acseAuthParameter.mechanism == AcseAuthenticationMechanism.ACSE_AUTH_PASSWORD)
{
buffer[bufPos++] = requirements_authentication[0];
bufPos = IsoUtil.BerEncoder_encodeTL(0x8b, 3, buffer, bufPos);
//memcpy(buffer + bufPos, auth_mech_password_oid, 3);
auth_mech_password_oid.CopyTo(buffer, bufPos);
bufPos += 3;
/* authentication value */
bufPos = IsoUtil.BerEncoder_encodeTL(0xac, (uint)(authValueStringLength + passwordLength + 1), buffer, bufPos);
bufPos = IsoUtil.BerEncoder_encodeTL(0x80, (uint)passwordLength, buffer, bufPos);
//memcpy(buffer + bufPos, authParameter.paswordOctetString, passwordLength);
isoParameters.acseAuthParameter.paswordOctetString.CopyTo(buffer, bufPos);
bufPos += passwordLength;
}
else
{ /* AUTH_NONE */
buffer[bufPos++] = 0;
}
}
/* user information */
bufPos = IsoUtil.BerEncoder_encodeTL(0xbe, (uint)userInfoLen, buffer, bufPos);
/* association data */
bufPos = IsoUtil.BerEncoder_encodeTL(0x28, (uint)assocDataLength, buffer, bufPos);
// Добавка Несговорова
bufPos = IsoUtil.BerEncoder_encodeTL(0x06, 2, buffer, bufPos);
buffer[bufPos++] = 0x51;
buffer[bufPos++] = 0x01;
/* indirect-reference */
bufPos = IsoUtil.BerEncoder_encodeTL(0x02, 1, buffer, bufPos);
buffer[bufPos++] = 3;
/* single ASN1 type */
bufPos = IsoUtil.BerEncoder_encodeTL(0xa0, (uint)payloadLength, buffer, bufPos);
/*writeBuffer.partLength = bufPos;
* writeBuffer.length = bufPos + payload.length;
* writeBuffer.nextPart = payload;*/
Array.Copy(payload, 0, buffer, bufPos, payloadLength);
return(bufPos + payloadLength);
}
public int Start(IsoConnectionParameters par)
{
isoParameters = par;
restart_allowed = true;
return(Start());
}
public IsoCotp(IsoConnectionParameters cp)
{
Reset(cp);
}
