diff options
Diffstat (limited to 'drivers/staging/batman-adv/packet.h')
-rw-r--r-- | drivers/staging/batman-adv/packet.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/drivers/staging/batman-adv/packet.h b/drivers/staging/batman-adv/packet.h new file mode 100644 index 0000000..5627ca3 --- /dev/null +++ b/drivers/staging/batman-adv/packet.h @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2007-2009 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 + * + */ + +#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 + +/* this file is included by batctl which needs these defines */ +#define COMPAT_VERSION 8 +#define DIRECTLINK 0x40 +#define VIS_SERVER 0x20 + +/* 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 + +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; + uint16_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)); + +struct unicast_packet { + uint8_t packet_type; + uint8_t version; /* batman version field */ + uint8_t dest[6]; + uint8_t ttl; +} __attribute__((packed)); + +struct bcast_packet { + uint8_t packet_type; + uint8_t version; /* batman version field */ + uint8_t orig[6]; + uint16_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 seqno; /* sequence number */ + uint8_t entries; /* number of entries behind this struct */ + uint8_t ttl; /* TTL */ + uint8_t vis_orig[6]; /* originator that informs about its + * neighbours */ + uint8_t target_orig[6]; /* who should receive this packet */ + uint8_t sender_orig[6]; /* who sent or rebroadcasted this packet */ +} __attribute__((packed)); |