in common/ipprefix.cpp [64:86]
bool IpPrefix::isValid()
{
if (m_mask < 0) return false;
switch (m_ip.getIp().family)
{
case AF_INET:
{
if (m_mask > 32) return false;
break;
}
case AF_INET6:
{
if (m_mask > 128) return false;
break;
}
default:
{
return false;
}
}
return true;
}