void Wiegand37WithFacilityFormat::setLinearDataWithoutParity(const void* data, size_t dataLengthBytes)
{
unsigned int pos = 1;
setFacilityCode((unsigned short)revertField(data, dataLengthBytes, &pos, 16));
setUid(revertField(data, dataLengthBytes, &pos, 19));
}
unsigned char FASCN200BitFormat::calculateLRC(const void* data, unsigned int datalenBits) const
{
unsigned char lrc = 0x00;
size_t datalenBytes = (datalenBits + 7) / 8;
if (datalenBytes > 1)
{
unsigned int pos = 0;
while (pos < datalenBits)
{
unsigned char c = (unsigned char)revertField(data, datalenBytes, &pos, 4);
lrc ^= c;
}
}
return lrc;
}
void FASCN200BitFormat::setLinearData(const void* data, size_t dataLengthBytes)
{
unsigned int pos = 0;
unsigned char c;
if (dataLengthBytes * 8 < getDataLength())
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "Data length too small.");
}
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_SS)
{
char tmpmsg[64];
sprintf(tmpmsg, "The FASC-N Start Sentinel doesn't match (%x).", c);
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, tmpmsg);
}
setAgencyCode((unsigned short)revertField(data, dataLengthBytes, &pos, 16));
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_FS)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The FASC-N Field Separator doesn't match after the Agency Code.");
}
setSystemCode((unsigned short)revertField(data, dataLengthBytes, &pos, 16));
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_FS)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The FASC-N Field Separator doesn't match after the System Code.");
}
setUid(revertField(data, dataLengthBytes, &pos, 24));
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_FS)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The FASC-N Field Separator doesn't match after the Credential.");
}
setSerieCode((unsigned char)revertField(data, dataLengthBytes, &pos, 4));
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_FS)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The FASC-N Field Separator doesn't match after the Credential Series.");
}
setCredentialCode((unsigned char)revertField(data, dataLengthBytes, &pos, 4));
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_FS)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The FASC-N Field Separator doesn't match after the Credential Issue.");
}
setPersonIdentifier(revertField(data, dataLengthBytes, &pos, 40));
setOrganizationalCategory((FASCNOrganizationalCategory)revertField(data, dataLengthBytes, &pos, 4));
setOrganizationalIdentifier((unsigned char)revertField(data, dataLengthBytes, &pos, 16));
setPOACategory((FASCNPOAssociationCategory)revertField(data, dataLengthBytes, &pos, 4));
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != FASCN_ES)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The End Sentinel doesn't match.");
}
unsigned char lrc = calculateLRC(data, pos);
c = (unsigned char)revertField(data, dataLengthBytes, &pos, 4);
if (c != lrc)
{
THROW_EXCEPTION_WITH_LOG(LibLogicalAccessException, "The FASC-N LRC seems wrong.");
}
}
void Wiegand37Format::setLinearDataWithoutParity(const void* data, size_t dataLengthBytes)
{
unsigned int pos = 1;
setUid(revertField(data, dataLengthBytes, &pos, 35));
}
