/*
* If prefix b is contained in prefix a, then return TRUE. Otherwise return FALSE.
* If both prefixs are the same it also returns TRUE
*/
int is_prefix_b_part_of_a (
lisp_addr_t a_prefix,
int a_prefix_length,
lisp_addr_t b_prefix,
int b_prefix_length)
{
lisp_addr_t a_network_addr;
lisp_addr_t b_network_addr_prefix_a;
if (a_prefix.afi != b_prefix.afi){
return FALSE;
}
if (a_prefix_length > b_prefix_length){
return FALSE;
}
a_network_addr = get_network_address(a_prefix, a_prefix_length);
b_network_addr_prefix_a = get_network_address(b_prefix, a_prefix_length);
if (compare_lisp_addr_t (&a_network_addr, &b_network_addr_prefix_a) == 0){
return (TRUE);
}else{
return (FALSE);
}
}
// TODO(kashihara): support hostaddr can be hostname not only IP address
string get_default_v4_address(string hostaddr) {
string address;
const address_list addrs = get_network_address();
for (address_list::const_iterator it = addrs.begin(), end = addrs.end();
it != end; ++it) {
jubatus::util::lang::shared_ptr<network_address> a(*it);
if (a->v6()) {
continue;
}
address = a->address();
if (!hostaddr.empty() && address == hostaddr) {
break;
}
if (!a->loopback()) {
break;
}
}
if (!hostaddr.empty() && address != hostaddr) {
LOG(WARNING) << "Use server address as '" << address << "' because '"
<< hostaddr << "' missing";
}
return address;
}
gchar*
calculate_network6(const gchar* ipv6, int prefix, gchar *calculated_network)
{
struct in6_addr network;
struct in6_addr address;
memset(&network, 0, sizeof(struct in6_addr));
inet_pton(AF_INET6, ipv6, &address);
get_network_address((unsigned char *)&address, prefix, &network);
inet_ntop(AF_INET6, &network, calculated_network, INET6_ADDRSTRLEN);
return calculated_network;
}