bird/lib/ip.h
1998-06-01 21:36:58 +00:00

46 lines
887 B
C

/*
* BIRD Internet Routing Daemon -- The Internet Protocol
*
* (c) 1998 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_IP_H_
#define _BIRD_IP_H_
#ifndef IPV6
#include "ipv4.h"
#else
#include "ipv6.h"
#endif
#define ipa_in_net(x,n,p) (!ipa_nonzero(ipa_and(ipa_xor((n),(x)),ipa_mkmask(p))))
/*
* ip_classify() returns either a negative number for invalid addresses
* or scope OR'ed together with address type.
*/
#define IADDR_INVALID -1
#define IADDR_SCOPE_MASK 0xfff
#define IADDR_HOST 0x1000
#define IADDR_BROADCAST 0x2000
#define IADDR_MULTICAST 0x4000
/*
* Address scope
*/
#define SCOPE_HOST 0
#define SCOPE_LINK 1
#define SCOPE_SITE 2
#define SCOPE_UNIVERSE 3
/*
* Is it a valid network prefix?
*/
#define ip_is_prefix(a,l) (!ipa_nonzero(ipa_and(a, ipa_not(ipa_mkmask(l)))))
#endif