[mirror_ubuntu-artful-kernel.git] / drivers / staging / batman-adv / packet.h

/*
 * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
 *
 * Marek Lindner, Simon Wunderlich
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA
 *
 */

#ifndef _NET_BATMAN_ADV_PACKET_H_
#define _NET_BATMAN_ADV_PACKET_H_

#define ETH_P_BATMAN  0x4305	/* unofficial/not registered Ethertype */

#define BAT_PACKET       0x01
#define BAT_ICMP         0x02
#define BAT_UNICAST      0x03
#define BAT_BCAST        0x04
#define BAT_VIS          0x05
#define BAT_UNICAST_FRAG 0x06

/* this file is included by batctl which needs these defines */
#define COMPAT_VERSION 13
#define DIRECTLINK 0x40
#define VIS_SERVER 0x20
#define PRIMARIES_FIRST_HOP 0x10

/* ICMP message types */
#define ECHO_REPLY 0
#define DESTINATION_UNREACHABLE 3
#define ECHO_REQUEST 8
#define TTL_EXCEEDED 11
#define PARAMETER_PROBLEM 12

/* vis defines */
#define VIS_TYPE_SERVER_SYNC		0
#define VIS_TYPE_CLIENT_UPDATE		1

/* fragmentation defines */
#define UNI_FRAG_HEAD 0x01

struct batman_packet {
	uint8_t  packet_type;
	uint8_t  version;  /* batman version field */
	uint8_t  flags;    /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
	uint8_t  tq;
	uint32_t seqno;
	uint8_t  orig[6];
	uint8_t  prev_sender[6];
	uint8_t  ttl;
	uint8_t  num_hna;
} __attribute__((packed));

#define BAT_PACKET_LEN sizeof(struct batman_packet)

struct icmp_packet {
	uint8_t  packet_type;
	uint8_t  version;  /* batman version field */
	uint8_t  msg_type; /* see ICMP message types above */
	uint8_t  ttl;
	uint8_t  dst[6];
	uint8_t  orig[6];
	uint16_t seqno;
	uint8_t  uid;
} __attribute__((packed));

#define BAT_RR_LEN 16

/* icmp_packet_rr must start with all fields from imcp_packet
 * as this is assumed by code that handles ICMP packets */
struct icmp_packet_rr {
	uint8_t  packet_type;
	uint8_t  version;  /* batman version field */
	uint8_t  msg_type; /* see ICMP message types above */
	uint8_t  ttl;
	uint8_t  dst[6];
	uint8_t  orig[6];
	uint16_t seqno;
	uint8_t  uid;
	uint8_t  rr_cur;
	uint8_t  rr[BAT_RR_LEN][ETH_ALEN];
} __attribute__((packed));

struct unicast_packet {
	uint8_t  packet_type;
	uint8_t  version;  /* batman version field */
	uint8_t  dest[6];
	uint8_t  ttl;
} __attribute__((packed));

struct unicast_frag_packet {
	uint8_t  packet_type;
	uint8_t  version;  /* batman version field */
	uint8_t  dest[6];
	uint8_t  ttl;
	uint8_t  flags;
	uint8_t  orig[6];
	uint16_t seqno;
} __attribute__((packed));

struct bcast_packet {
	uint8_t  packet_type;
	uint8_t  version;  /* batman version field */
	uint8_t  orig[6];
	uint8_t  ttl;
	uint32_t seqno;
} __attribute__((packed));

struct vis_packet {
	uint8_t  packet_type;
	uint8_t  version;        /* batman version field */
	uint8_t  vis_type;	 /* which type of vis-participant sent this? */
	uint8_t  entries;	 /* number of entries behind this struct */
	uint32_t seqno;		 /* sequence number */
	uint8_t  ttl;		 /* TTL */
	uint8_t  vis_orig[6];	 /* originator that informs about its
				  * neighbors */
	uint8_t  target_orig[6]; /* who should receive this packet */
	uint8_t  sender_orig[6]; /* who sent or rebroadcasted this packet */
} __attribute__((packed));

#endif /* _NET_BATMAN_ADV_PACKET_H_ */
Commit	Line	Data
5beef3c9	1	/*
9b6d10b7	2	* Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
5beef3c9 AL	3	*
	4	* Marek Lindner, Simon Wunderlich
	5	*
	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.
	9	*
	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.
	14	*
	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
	18	* 02110-1301, USA
	19	*
	20	*/
	21
62c20720 SE	22	#ifndef _NET_BATMAN_ADV_PACKET_H_
	23	#define _NET_BATMAN_ADV_PACKET_H_
	24
5beef3c9 AL	25	#define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */
5beef3c9 AL	26
e63760e5 AL	27	#define BAT_PACKET 0x01
	28	#define BAT_ICMP 0x02
	29	#define BAT_UNICAST 0x03
	30	#define BAT_BCAST 0x04
	31	#define BAT_VIS 0x05
	32	#define BAT_UNICAST_FRAG 0x06
5beef3c9 AL	33
5beef3c9 AL	34	/* this file is included by batctl which needs these defines */
e63760e5	35	#define COMPAT_VERSION 13
5beef3c9 AL	36	#define DIRECTLINK 0x40
5beef3c9 AL	37	#define VIS_SERVER 0x20
e35fd5ec	38	#define PRIMARIES_FIRST_HOP 0x10
5beef3c9 AL	39
	40	/* ICMP message types */
	41	#define ECHO_REPLY 0
	42	#define DESTINATION_UNREACHABLE 3
	43	#define ECHO_REQUEST 8
	44	#define TTL_EXCEEDED 11
	45	#define PARAMETER_PROBLEM 12
	46
	47	/* vis defines */
	48	#define VIS_TYPE_SERVER_SYNC 0
	49	#define VIS_TYPE_CLIENT_UPDATE 1
	50
e63760e5 AL	51	/* fragmentation defines */
	52	#define UNI_FRAG_HEAD 0x01
	53
5beef3c9 AL	54	struct batman_packet {
	55	uint8_t packet_type;
	56	uint8_t version; /* batman version field */
	57	uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
	58	uint8_t tq;
cf2d72ec	59	uint32_t seqno;
5beef3c9 AL	60	uint8_t orig[6];
	61	uint8_t prev_sender[6];
	62	uint8_t ttl;
	63	uint8_t num_hna;
	64	} __attribute__((packed));
	65
	66	#define BAT_PACKET_LEN sizeof(struct batman_packet)
	67
	68	struct icmp_packet {
	69	uint8_t packet_type;
	70	uint8_t version; /* batman version field */
	71	uint8_t msg_type; /* see ICMP message types above */
	72	uint8_t ttl;
	73	uint8_t dst[6];
	74	uint8_t orig[6];
	75	uint16_t seqno;
	76	uint8_t uid;
	77	} __attribute__((packed));
	78
e4cb3720 DS	79	#define BAT_RR_LEN 16
	80
	81	/* icmp_packet_rr must start with all fields from imcp_packet
1612ae99	82	* as this is assumed by code that handles ICMP packets */
e4cb3720 DS	83	struct icmp_packet_rr {
	84	uint8_t packet_type;
	85	uint8_t version; /* batman version field */
	86	uint8_t msg_type; /* see ICMP message types above */
	87	uint8_t ttl;
	88	uint8_t dst[6];
	89	uint8_t orig[6];
	90	uint16_t seqno;
	91	uint8_t uid;
	92	uint8_t rr_cur;
	93	uint8_t rr[BAT_RR_LEN][ETH_ALEN];
	94	} __attribute__((packed));
	95
5beef3c9 AL	96	struct unicast_packet {
	97	uint8_t packet_type;
	98	uint8_t version; /* batman version field */
	99	uint8_t dest[6];
	100	uint8_t ttl;
	101	} __attribute__((packed));
	102
e63760e5 AL	103	struct unicast_frag_packet {
	104	uint8_t packet_type;
	105	uint8_t version; /* batman version field */
	106	uint8_t dest[6];
	107	uint8_t ttl;
	108	uint8_t flags;
	109	uint8_t orig[6];
	110	uint16_t seqno;
	111	} __attribute__((packed));
	112
5beef3c9 AL	113	struct bcast_packet {
	114	uint8_t packet_type;
	115	uint8_t version; /* batman version field */
	116	uint8_t orig[6];
cf2d72ec SW	117	uint8_t ttl;
cf2d72ec SW	118	uint32_t seqno;
5beef3c9 AL	119	} __attribute__((packed));
	120
	121	struct vis_packet {
	122	uint8_t packet_type;
	123	uint8_t version; /* batman version field */
	124	uint8_t vis_type; /* which type of vis-participant sent this? */
5beef3c9	125	uint8_t entries; /* number of entries behind this struct */
cf2d72ec	126	uint32_t seqno; /* sequence number */
5beef3c9 AL	127	uint8_t ttl; /* TTL */
5beef3c9 AL	128	uint8_t vis_orig[6]; /* originator that informs about its
5ea84fa3	129	* neighbors */
5beef3c9 AL	130	uint8_t target_orig[6]; /* who should receive this packet */
	131	uint8_t sender_orig[6]; /* who sent or rebroadcasted this packet */
	132	} __attribute__((packed));
62c20720 SE	133
62c20720 SE	134	#endif /* _NET_BATMAN_ADV_PACKET_H_ */