2 * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 #ifndef _NET_BATMAN_ADV_PACKET_H_
23 #define _NET_BATMAN_ADV_PACKET_H_
25 #define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */
27 #define BAT_PACKET 0x01
29 #define BAT_UNICAST 0x03
30 #define BAT_BCAST 0x04
33 /* this file is included by batctl which needs these defines */
34 #define COMPAT_VERSION 11
35 #define DIRECTLINK 0x40
36 #define VIS_SERVER 0x20
37 #define PRIMARIES_FIRST_HOP 0x10
39 /* ICMP message types */
41 #define DESTINATION_UNREACHABLE 3
42 #define ECHO_REQUEST 8
43 #define TTL_EXCEEDED 11
44 #define PARAMETER_PROBLEM 12
47 #define VIS_TYPE_SERVER_SYNC 0
48 #define VIS_TYPE_CLIENT_UPDATE 1
50 struct batman_packet {
52 uint8_t version; /* batman version field */
53 uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
57 uint8_t prev_sender[6];
60 } __attribute__((packed));
62 #define BAT_PACKET_LEN sizeof(struct batman_packet)
66 uint8_t version; /* batman version field */
67 uint8_t msg_type; /* see ICMP message types above */
73 } __attribute__((packed));
77 /* icmp_packet_rr must start with all fields from imcp_packet
78 as this is assumed by code that handles ICMP packets */
79 struct icmp_packet_rr {
81 uint8_t version; /* batman version field */
82 uint8_t msg_type; /* see ICMP message types above */
89 uint8_t rr[BAT_RR_LEN][ETH_ALEN];
90 } __attribute__((packed));
92 struct unicast_packet {
94 uint8_t version; /* batman version field */
97 } __attribute__((packed));
101 uint8_t version; /* batman version field */
105 } __attribute__((packed));
109 uint8_t version; /* batman version field */
110 uint8_t vis_type; /* which type of vis-participant sent this? */
111 uint8_t entries; /* number of entries behind this struct */
112 uint32_t seqno; /* sequence number */
113 uint8_t ttl; /* TTL */
114 uint8_t vis_orig[6]; /* originator that informs about its
116 uint8_t target_orig[6]; /* who should receive this packet */
117 uint8_t sender_orig[6]; /* who sent or rebroadcasted this packet */
118 } __attribute__((packed));
120 #endif /* _NET_BATMAN_ADV_PACKET_H_ */