2 * Copyright (C) 2007-2012 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 */
33 BAT_UNICAST_FRAG = 0x06,
38 /* this file is included by batctl which needs these defines */
39 #define COMPAT_VERSION 14
42 PRIMARIES_FIRST_HOP = 1 << 4,
47 /* ICMP message types */
48 enum icmp_packettype {
50 DESTINATION_UNREACHABLE = 3,
53 PARAMETER_PROBLEM = 12
58 VIS_TYPE_SERVER_SYNC = 0,
59 VIS_TYPE_CLIENT_UPDATE = 1
62 /* fragmentation defines */
63 enum unicast_frag_flags {
64 UNI_FRAG_HEAD = 1 << 0,
65 UNI_FRAG_LARGETAIL = 1 << 1
68 /* TT_QUERY subtypes */
69 #define TT_QUERY_TYPE_MASK 0x3
71 enum tt_query_packettype {
78 TT_FULL_TABLE = 1 << 2
82 * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to
83 * 1 << 15 are used for local computation only */
84 enum tt_client_flags {
85 TT_CLIENT_DEL = 1 << 0,
86 TT_CLIENT_ROAM = 1 << 1,
87 TT_CLIENT_WIFI = 1 << 2,
88 TT_CLIENT_NOPURGE = 1 << 8,
89 TT_CLIENT_NEW = 1 << 9,
90 TT_CLIENT_PENDING = 1 << 10
93 struct batman_header {
95 uint8_t version; /* batman version field */
99 struct batman_ogm_packet {
100 struct batman_header header;
101 uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
104 uint8_t prev_sender[6];
105 uint8_t gw_flags; /* flags related to gateway class */
107 uint8_t tt_num_changes;
108 uint8_t ttvn; /* translation table version number */
112 #define BATMAN_OGM_LEN sizeof(struct batman_ogm_packet)
115 struct batman_header header;
116 uint8_t msg_type; /* see ICMP message types above */
124 #define BAT_RR_LEN 16
126 /* icmp_packet_rr must start with all fields from imcp_packet
127 * as this is assumed by code that handles ICMP packets */
128 struct icmp_packet_rr {
129 struct batman_header header;
130 uint8_t msg_type; /* see ICMP message types above */
136 uint8_t rr[BAT_RR_LEN][ETH_ALEN];
139 struct unicast_packet {
140 struct batman_header header;
141 uint8_t ttvn; /* destination translation table version number */
145 struct unicast_frag_packet {
146 struct batman_header header;
147 uint8_t ttvn; /* destination translation table version number */
155 struct bcast_packet {
156 struct batman_header header;
163 struct batman_header header;
164 uint8_t vis_type; /* which type of vis-participant sent this? */
165 uint32_t seqno; /* sequence number */
166 uint8_t entries; /* number of entries behind this struct */
168 uint8_t vis_orig[6]; /* originator that announces its neighbors */
169 uint8_t target_orig[6]; /* who should receive this packet */
170 uint8_t sender_orig[6]; /* who sent or rebroadcasted this packet */
173 struct tt_query_packet {
174 struct batman_header header;
175 /* the flag field is a combination of:
176 * - TT_REQUEST or TT_RESPONSE
179 uint8_t dst[ETH_ALEN];
180 uint8_t src[ETH_ALEN];
181 /* the ttvn field is:
182 * if TT_REQUEST: ttvn that triggered the
184 * if TT_RESPONSE: new ttvn for the src
188 * if TT_REQUEST: crc associated with the
190 * if TT_RESPONSE: table_size */
194 struct roam_adv_packet {
195 struct batman_header header;
197 uint8_t dst[ETH_ALEN];
198 uint8_t src[ETH_ALEN];
199 uint8_t client[ETH_ALEN];
204 uint8_t addr[ETH_ALEN];
207 #endif /* _NET_BATMAN_ADV_PACKET_H_ */