bird/lib/ip.h
Martin Mares dce267832a Basic support for IPv6. The system-dependent part doesn't work yet,
but the core routines are there and seem to be working.

   o  lib/ipv6.[ch] written
   o  Lexical analyser recognizes IPv6 addresses and when in IPv6
      mode, treats pure IPv4 addresses as router IDs.
   o  Router ID must be configured manually on IPv6 systems.
   o  Added SCOPE_ORGANIZATION for org-scoped IPv6 multicasts.
   o  Fixed few places where ipa_(hton|ntoh) was called as a function
      returning converted address.
1999-08-03 19:36:06 +00:00

56 lines
1.1 KiB
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_ORGANIZATION 3
#define SCOPE_UNIVERSE 4
/*
* Is it a valid network prefix?
*/
#define ip_is_prefix(a,l) (!ipa_nonzero(ipa_and(a, ipa_not(ipa_mkmask(l)))))
/*
* Conversions between internal and string representation
*/
char *ip_ntop(ip_addr a, char *);
char *ip_ntox(ip_addr a, char *);
int ip_pton(char *a, ip_addr *o);
#endif