mirror of https://github.com/FRRouting/frr.git
86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
// SPDX-License-Identifier: MIT
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/*
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Copyright (c) 2007, 2008 by Juliusz Chroboczek
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*/
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#ifndef BABEL_MESSAGE_H
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#define BABEL_MESSAGE_H
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#include "babel_interface.h"
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#define MAX_BUFFERED_UPDATES 200
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#define BUCKET_TOKENS_MAX 200
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#define BUCKET_TOKENS_PER_SEC 40
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/* A registry of assigned TLV and sub-TLV types is available at
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http://www.pps.univ-paris-diderot.fr/~jch/software/babel/babel-tlv-registry.text
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*/
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#define MESSAGE_PAD1 0
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#define MESSAGE_PADN 1
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#define MESSAGE_ACK_REQ 2
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#define MESSAGE_ACK 3
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#define MESSAGE_HELLO 4
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#define MESSAGE_IHU 5
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#define MESSAGE_ROUTER_ID 6
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#define MESSAGE_NH 7
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#define MESSAGE_UPDATE 8
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#define MESSAGE_REQUEST 9
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#define MESSAGE_MH_REQUEST 10
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#define MESSAGE_MAX 10
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/* Protocol extension through sub-TLVs. */
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#define SUBTLV_PAD1 0
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#define SUBTLV_PADN 1
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#define SUBTLV_DIVERSITY 2 /* Also known as babelz. */
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#define SUBTLV_TIMESTAMP 3 /* Used to compute RTT. */
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#define SUBTLV_MANDATORY 0x80
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extern unsigned short myseqno;
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extern int broadcast_ihu;
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extern int split_horizon;
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extern struct neighbour *unicast_neighbour;
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extern struct timeval unicast_flush_timeout;
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void parse_packet(const unsigned char *from, struct interface *ifp,
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const unsigned char *packet, int packetlen);
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void flushbuf(struct interface *ifp);
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void flushupdates(struct interface *ifp);
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void send_ack(struct neighbour *neigh, unsigned short nonce,
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unsigned short interval);
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void send_hello_noupdate(struct interface *ifp, unsigned interval);
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void send_hello(struct interface *ifp);
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void flush_unicast(int dofree);
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void send_update(struct interface *ifp, int urgent,
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const unsigned char *prefix, unsigned char plen);
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void send_update_resend(struct interface *ifp,
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const unsigned char *prefix, unsigned char plen);
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void send_wildcard_retraction(struct interface *ifp);
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void update_myseqno(void);
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void send_self_update(struct interface *ifp);
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void send_ihu(struct neighbour *neigh, struct interface *ifp);
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void send_marginal_ihu(struct interface *ifp);
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void send_request(struct interface *ifp,
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const unsigned char *prefix, unsigned char plen);
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void send_unicast_request(struct neighbour *neigh,
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const unsigned char *prefix, unsigned char plen);
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void send_multihop_request(struct interface *ifp,
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const unsigned char *prefix, unsigned char plen,
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unsigned short seqno, const unsigned char *id,
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unsigned short hop_count);
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void
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send_unicast_multihop_request(struct neighbour *neigh,
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const unsigned char *prefix, unsigned char plen,
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unsigned short seqno, const unsigned char *id,
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unsigned short hop_count);
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void send_request_resend(struct neighbour *neigh,
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const unsigned char *prefix, unsigned char plen,
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unsigned short seqno, unsigned char *id);
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void handle_request(struct neighbour *neigh, const unsigned char *prefix,
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unsigned char plen, unsigned char hop_count,
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unsigned short seqno, const unsigned char *id);
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#endif
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