1 /* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
3 * Marek Lindner, Simon Wunderlich
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of version 2 of the GNU General Public
7 * License as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 #ifndef _NET_BATMAN_ADV_PACKET_H_
21 #define _NET_BATMAN_ADV_PACKET_H_
23 #define BATADV_ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */
25 enum batadv_packettype {
28 BATADV_UNICAST = 0x03,
31 BATADV_UNICAST_FRAG = 0x06,
32 BATADV_TT_QUERY = 0x07,
33 BATADV_ROAM_ADV = 0x08,
36 /* this file is included by batctl which needs these defines */
37 #define BATADV_COMPAT_VERSION 14
39 enum batadv_iv_flags {
40 BATADV_NOT_BEST_NEXT_HOP = 1 << 3,
41 BATADV_PRIMARIES_FIRST_HOP = 1 << 4,
42 BATADV_VIS_SERVER = 1 << 5,
43 BATADV_DIRECTLINK = 1 << 6,
46 /* ICMP message types */
47 enum batadv_icmp_packettype {
48 BATADV_ECHO_REPLY = 0,
49 BATADV_DESTINATION_UNREACHABLE = 3,
50 BATADV_ECHO_REQUEST = 8,
51 BATADV_TTL_EXCEEDED = 11,
52 BATADV_PARAMETER_PROBLEM = 12,
56 enum batadv_vis_packettype {
57 BATADV_VIS_TYPE_SERVER_SYNC = 0,
58 BATADV_VIS_TYPE_CLIENT_UPDATE = 1,
61 /* fragmentation defines */
62 enum batadv_unicast_frag_flags {
63 BATADV_UNI_FRAG_HEAD = 1 << 0,
64 BATADV_UNI_FRAG_LARGETAIL = 1 << 1,
67 /* TT_QUERY subtypes */
68 #define BATADV_TT_QUERY_TYPE_MASK 0x3
70 enum batadv_tt_query_packettype {
71 BATADV_TT_REQUEST = 0,
72 BATADV_TT_RESPONSE = 1,
76 enum batadv_tt_query_flags {
77 BATADV_TT_FULL_TABLE = 1 << 2,
80 /* BATADV_TT_CLIENT flags.
81 * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to
82 * 1 << 15 are used for local computation only
84 enum batadv_tt_client_flags {
85 BATADV_TT_CLIENT_DEL = 1 << 0,
86 BATADV_TT_CLIENT_ROAM = 1 << 1,
87 BATADV_TT_CLIENT_WIFI = 1 << 2,
88 BATADV_TT_CLIENT_NOPURGE = 1 << 8,
89 BATADV_TT_CLIENT_NEW = 1 << 9,
90 BATADV_TT_CLIENT_PENDING = 1 << 10,
93 /* claim frame types for the bridge loop avoidance */
94 enum batadv_bla_claimframe {
95 BATADV_CLAIM_TYPE_ADD = 0x00,
96 BATADV_CLAIM_TYPE_DEL = 0x01,
97 BATADV_CLAIM_TYPE_ANNOUNCE = 0x02,
98 BATADV_CLAIM_TYPE_REQUEST = 0x03,
101 /* the destination hardware field in the ARP frame is used to
102 * transport the claim type and the group id
104 struct bla_claim_dst {
105 uint8_t magic[3]; /* FF:43:05 */
106 uint8_t type; /* bla_claimframe */
107 __be16 group; /* group id */
110 struct batman_header {
112 uint8_t version; /* batman version field */
116 struct batman_ogm_packet {
117 struct batman_header header;
118 uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
120 uint8_t orig[ETH_ALEN];
121 uint8_t prev_sender[ETH_ALEN];
122 uint8_t gw_flags; /* flags related to gateway class */
124 uint8_t tt_num_changes;
125 uint8_t ttvn; /* translation table version number */
129 #define BATADV_OGM_HLEN sizeof(struct batman_ogm_packet)
132 struct batman_header header;
133 uint8_t msg_type; /* see ICMP message types above */
134 uint8_t dst[ETH_ALEN];
135 uint8_t orig[ETH_ALEN];
141 #define BATADV_RR_LEN 16
143 /* icmp_packet_rr must start with all fields from imcp_packet
144 * 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[BATADV_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 __be32 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
198 uint8_t dst[ETH_ALEN];
199 uint8_t src[ETH_ALEN];
200 /* the ttvn field is:
201 * if TT_REQUEST: ttvn that triggered the
203 * if TT_RESPONSE: new ttvn for the src
208 * if TT_REQUEST: crc associated with the
210 * if TT_RESPONSE: table_size
215 struct roam_adv_packet {
216 struct batman_header header;
218 uint8_t dst[ETH_ALEN];
219 uint8_t src[ETH_ALEN];
220 uint8_t client[ETH_ALEN];
225 uint8_t addr[ETH_ALEN];
228 #endif /* _NET_BATMAN_ADV_PACKET_H_ */