mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-09 12:48:43 +00:00
ff2857b03d
- BSD kernel syncer is now self-conscious and can learn alien routes - important bugfix in BSD kernel syncer (crash after protocol restart) - many minor changes and bugfixes in kernel syncers and neighbor cache - direct protocol does not generate host and link local routes - min_scope check is removed, all routes have SCOPE_UNIVERSE by default - also fixes some remaining compiler warnings
67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/*
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* BIRD Internet Routing Daemon -- The Internet Protocol
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*
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* (c) 1998 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_IP_H_
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#define _BIRD_IP_H_
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#ifndef IPV6
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#include "ipv4.h"
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#else
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#include "ipv6.h"
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#endif
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#define ipa_in_net(x,n,p) (!ipa_nonzero(ipa_and(ipa_xor((n),(x)),ipa_mkmask(p))))
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/*
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* ip_classify() returns either a negative number for invalid addresses
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* or scope OR'ed together with address type.
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*/
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#define IADDR_INVALID -1
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#define IADDR_SCOPE_MASK 0xfff
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#define IADDR_HOST 0x1000
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#define IADDR_BROADCAST 0x2000
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#define IADDR_MULTICAST 0x4000
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/*
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* Address scope
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*/
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#define SCOPE_HOST 0
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#define SCOPE_LINK 1
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#define SCOPE_SITE 2
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#define SCOPE_ORGANIZATION 3
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#define SCOPE_UNIVERSE 4
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char *ip_scope_text(unsigned);
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/*
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* Network prefixes
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*/
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struct prefix {
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ip_addr addr;
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unsigned int len;
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};
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#define ip_is_prefix(a,l) (!ipa_nonzero(ipa_and(a, ipa_not(ipa_mkmask(l)))))
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#define ipa_zero(x) (!ipa_nonzero(x))
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static inline int ipa_classify_net(ip_addr a)
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{ return ipa_zero(a) ? (IADDR_HOST | SCOPE_UNIVERSE) : ipa_classify(a); }
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/*
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* Conversions between internal and string representation
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*/
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char *ip_ntop(ip_addr a, char *);
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char *ip_ntox(ip_addr a, char *);
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int ip_pton(char *a, ip_addr *o);
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#endif
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