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
41 enum batman_iv_flags
{
42 NOT_BEST_NEXT_HOP
= 1 << 3,
43 PRIMARIES_FIRST_HOP
= 1 << 4,
48 /* ICMP message types */
49 enum icmp_packettype
{
51 DESTINATION_UNREACHABLE
= 3,
54 PARAMETER_PROBLEM
= 12
59 VIS_TYPE_SERVER_SYNC
= 0,
60 VIS_TYPE_CLIENT_UPDATE
= 1
63 /* fragmentation defines */
64 enum unicast_frag_flags
{
65 UNI_FRAG_HEAD
= 1 << 0,
66 UNI_FRAG_LARGETAIL
= 1 << 1
69 /* TT_QUERY subtypes */
70 #define TT_QUERY_TYPE_MASK 0x3
72 enum tt_query_packettype
{
79 TT_FULL_TABLE
= 1 << 2
83 * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to
84 * 1 << 15 are used for local computation only */
85 enum tt_client_flags
{
86 TT_CLIENT_DEL
= 1 << 0,
87 TT_CLIENT_ROAM
= 1 << 1,
88 TT_CLIENT_WIFI
= 1 << 2,
89 TT_CLIENT_NOPURGE
= 1 << 8,
90 TT_CLIENT_NEW
= 1 << 9,
91 TT_CLIENT_PENDING
= 1 << 10
94 /* claim frame types for the bridge loop avoidance */
96 CLAIM_TYPE_ADD
= 0x00,
97 CLAIM_TYPE_DEL
= 0x01,
98 CLAIM_TYPE_ANNOUNCE
= 0x02,
99 CLAIM_TYPE_REQUEST
= 0x03
102 /* the destination hardware field in the ARP frame is used to
103 * transport the claim type and the group id
105 struct bla_claim_dst
{
106 uint8_t magic
[3]; /* FF:43:05 */
107 uint8_t type
; /* bla_claimframe */
108 uint16_t group
; /* group id */
111 struct batman_header
{
113 uint8_t version
; /* batman version field */
117 struct batman_ogm_packet
{
118 struct batman_header header
;
119 uint8_t flags
; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
121 uint8_t orig
[ETH_ALEN
];
122 uint8_t prev_sender
[ETH_ALEN
];
123 uint8_t gw_flags
; /* flags related to gateway class */
125 uint8_t tt_num_changes
;
126 uint8_t ttvn
; /* translation table version number */
130 #define BATMAN_OGM_HLEN sizeof(struct batman_ogm_packet)
133 struct batman_header header
;
134 uint8_t msg_type
; /* see ICMP message types above */
135 uint8_t dst
[ETH_ALEN
];
136 uint8_t orig
[ETH_ALEN
];
142 #define BAT_RR_LEN 16
144 /* icmp_packet_rr must start with all fields from imcp_packet
145 * as this is assumed by code that handles ICMP packets */
146 struct icmp_packet_rr
{
147 struct batman_header header
;
148 uint8_t msg_type
; /* see ICMP message types above */
149 uint8_t dst
[ETH_ALEN
];
150 uint8_t orig
[ETH_ALEN
];
154 uint8_t rr
[BAT_RR_LEN
][ETH_ALEN
];
157 struct unicast_packet
{
158 struct batman_header header
;
159 uint8_t ttvn
; /* destination translation table version number */
160 uint8_t dest
[ETH_ALEN
];
163 struct unicast_frag_packet
{
164 struct batman_header header
;
165 uint8_t ttvn
; /* destination translation table version number */
166 uint8_t dest
[ETH_ALEN
];
169 uint8_t orig
[ETH_ALEN
];
173 struct bcast_packet
{
174 struct batman_header header
;
177 uint8_t orig
[ETH_ALEN
];
181 struct batman_header header
;
182 uint8_t vis_type
; /* which type of vis-participant sent this? */
183 uint32_t seqno
; /* sequence number */
184 uint8_t entries
; /* number of entries behind this struct */
186 uint8_t vis_orig
[ETH_ALEN
]; /* originator reporting its neighbors */
187 uint8_t target_orig
[ETH_ALEN
]; /* who should receive this packet */
188 uint8_t sender_orig
[ETH_ALEN
]; /* who sent or forwarded this packet */
191 struct tt_query_packet
{
192 struct batman_header header
;
193 /* the flag field is a combination of:
194 * - TT_REQUEST or TT_RESPONSE
197 uint8_t dst
[ETH_ALEN
];
198 uint8_t src
[ETH_ALEN
];
199 /* the ttvn field is:
200 * if TT_REQUEST: ttvn that triggered the
202 * if TT_RESPONSE: new ttvn for the src
206 * if TT_REQUEST: crc associated with the
208 * if TT_RESPONSE: table_size */
212 struct roam_adv_packet
{
213 struct batman_header header
;
215 uint8_t dst
[ETH_ALEN
];
216 uint8_t src
[ETH_ALEN
];
217 uint8_t client
[ETH_ALEN
];
222 uint8_t addr
[ETH_ALEN
];
225 #endif /* _NET_BATMAN_ADV_PACKET_H_ */