1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
// SPDX-License-Identifier: MIT
/*
Copyright (c) 2007, 2008 by Juliusz Chroboczek
*/
#ifndef BABEL_MESSAGE_H
#define BABEL_MESSAGE_H
#include "babel_interface.h"
#define MAX_BUFFERED_UPDATES 200
#define BUCKET_TOKENS_MAX 200
#define BUCKET_TOKENS_PER_SEC 40
/* A registry of assigned TLV and sub-TLV types is available at
http://www.pps.univ-paris-diderot.fr/~jch/software/babel/babel-tlv-registry.text
*/
#define MESSAGE_PAD1 0
#define MESSAGE_PADN 1
#define MESSAGE_ACK_REQ 2
#define MESSAGE_ACK 3
#define MESSAGE_HELLO 4
#define MESSAGE_IHU 5
#define MESSAGE_ROUTER_ID 6
#define MESSAGE_NH 7
#define MESSAGE_UPDATE 8
#define MESSAGE_REQUEST 9
#define MESSAGE_MH_REQUEST 10
#define MESSAGE_MAX 10
/* Protocol extension through sub-TLVs. */
#define SUBTLV_PAD1 0
#define SUBTLV_PADN 1
#define SUBTLV_DIVERSITY 2 /* Also known as babelz. */
#define SUBTLV_TIMESTAMP 3 /* Used to compute RTT. */
#define SUBTLV_SOURCE_PREFIX 128 /* Source-specific routing. */
#define SUBTLV_MANDATORY 0x80
extern unsigned short myseqno;
extern int broadcast_ihu;
extern int split_horizon;
extern struct neighbour *unicast_neighbour;
extern struct timeval unicast_flush_timeout;
void parse_packet(const unsigned char *from, struct interface *ifp, const unsigned char *packet,
int packetlen);
void flushbuf(struct interface *ifp);
void flushupdates(struct interface *ifp);
void send_ack(struct neighbour *neigh, unsigned short nonce, unsigned short interval);
void send_hello_noupdate(struct interface *ifp, unsigned interval);
void send_hello(struct interface *ifp);
void flush_unicast(int dofree);
void send_update(struct interface *ifp, int urgent, const unsigned char *prefix,
unsigned char plen);
void send_update_resend(struct interface *ifp, const unsigned char *prefix, unsigned char plen);
void send_wildcard_retraction(struct interface *ifp);
void update_myseqno(void);
void send_self_update(struct interface *ifp);
void send_ihu(struct neighbour *neigh, struct interface *ifp);
void send_marginal_ihu(struct interface *ifp);
void send_request(struct interface *ifp, const unsigned char *prefix, unsigned char plen);
void send_unicast_request(struct neighbour *neigh, const unsigned char *prefix, unsigned char plen);
void send_multihop_request(struct interface *ifp, const unsigned char *prefix, unsigned char plen,
unsigned short seqno, const unsigned char *id, unsigned short hop_count);
void send_unicast_multihop_request(struct neighbour *neigh, const unsigned char *prefix,
unsigned char plen, unsigned short seqno,
const unsigned char *id, unsigned short hop_count);
void send_request_resend(struct neighbour *neigh, const unsigned char *prefix, unsigned char plen,
unsigned short seqno, unsigned char *id);
void handle_request(struct neighbour *neigh, const unsigned char *prefix, unsigned char plen,
unsigned char hop_count, unsigned short seqno, const unsigned char *id);
#endif
|
