IPv6_addr ipV6IpfixToIpV6(const in6_addr & ipv6_ipfix) {
IPv6_addr addr;
memcpy(addr.begin(), &ipv6_ipfix, sizeof(ipv6_ipfix));
cout << "[0]" << bin2hexstring(addr.begin(), sizeof(IPv6_addr)) << endl;
cout << "[1]" << bin2hexstring(addr.begin(), sizeof(IPv6_addr)) << endl;
return addr;
}
IPv6_addr ipV6NfDumpToIpV6(const uint64_t * ipv6_parts) {
IPv6_addr addr;
uint64_t p1 = ipv6_parts[0];
uint64_t p2 = ipv6_parts[1];
memcpy(addr.begin(), &p1, sizeof(uint64_t));
memcpy(addr.begin() + sizeof(uint64_t), &p2, sizeof(uint64_t));
cout << util::bin2hexstring(addr.begin(), sizeof(IPv6_addr)) << endl;
return addr; // FIXME: is the byte order correct? ~reto
}
/**
* Generate a bitmask for the given prefix
*
* \return IPv6_addr IP with the first prefix bits set to 1
*
* \exception std::string Errormessage
*/
IPv6_addr IPv6_addr::getNetmask(const uint8_t prefix) {
if (prefix == 0 || prefix > 128) {
stringstream errormsg;
errormsg << "ERROR: invalid prefix value: (" << prefix << "). ";
errormsg << "Valid prefix lengths are 1..128. For monitoring a single host use 128.";
throw errormsg.str();
}
IPv6_addr netmask; // all bits are set to 0
uint8_t complete_bytes = prefix / 8;
uint8_t additional_bits = prefix % 8;
fill_n(netmask.begin(), complete_bytes, numeric_limits<unsigned char>::max());
if (additional_bits) {
*(netmask.begin() + complete_bytes + 1) = (char) (1 << (additional_bits - 1));
}
return netmask;
}
/**
* Implements the equals operator
*
* \param other Reference the the IP address which we should compare to
*
* \return bool True if both addresses are the same, false if not
*/
bool IPv6_addr::operator==(const IPv6_addr & other) const {
return equal(this->begin(), this->end(), other.begin());
}
