diff options
Diffstat (limited to 'net/batman-adv/packet.h')
| -rw-r--r-- | net/batman-adv/packet.h | 149 |
1 files changed, 116 insertions, 33 deletions
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h index eda9965..4d9e54c 100644 --- a/net/batman-adv/packet.h +++ b/net/batman-adv/packet.h @@ -24,59 +24,99 @@ #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 +enum bat_packettype { + BAT_OGM = 0x01, + BAT_ICMP = 0x02, + BAT_UNICAST = 0x03, + BAT_BCAST = 0x04, + BAT_VIS = 0x05, + BAT_UNICAST_FRAG = 0x06, + BAT_TT_QUERY = 0x07, + BAT_ROAM_ADV = 0x08 +}; /* this file is included by batctl which needs these defines */ -#define COMPAT_VERSION 12 -#define DIRECTLINK 0x40 -#define VIS_SERVER 0x20 -#define PRIMARIES_FIRST_HOP 0x10 +#define COMPAT_VERSION 14 + +enum batman_flags { + PRIMARIES_FIRST_HOP = 1 << 4, + VIS_SERVER = 1 << 5, + DIRECTLINK = 1 << 6 +}; /* ICMP message types */ -#define ECHO_REPLY 0 -#define DESTINATION_UNREACHABLE 3 -#define ECHO_REQUEST 8 -#define TTL_EXCEEDED 11 -#define PARAMETER_PROBLEM 12 +enum icmp_packettype { + ECHO_REPLY = 0, + DESTINATION_UNREACHABLE = 3, + ECHO_REQUEST = 8, + TTL_EXCEEDED = 11, + PARAMETER_PROBLEM = 12 +}; /* vis defines */ -#define VIS_TYPE_SERVER_SYNC 0 -#define VIS_TYPE_CLIENT_UPDATE 1 +enum vis_packettype { + VIS_TYPE_SERVER_SYNC = 0, + VIS_TYPE_CLIENT_UPDATE = 1 +}; /* fragmentation defines */ -#define UNI_FRAG_HEAD 0x01 -#define UNI_FRAG_LARGETAIL 0x02 - -struct batman_packet { +enum unicast_frag_flags { + UNI_FRAG_HEAD = 1 << 0, + UNI_FRAG_LARGETAIL = 1 << 1 +}; + +/* TT_QUERY subtypes */ +#define TT_QUERY_TYPE_MASK 0x3 + +enum tt_query_packettype { + TT_REQUEST = 0, + TT_RESPONSE = 1 +}; + +/* TT_QUERY flags */ +enum tt_query_flags { + TT_FULL_TABLE = 1 << 2 +}; + +/* TT_CLIENT flags. + * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to + * 1 << 15 are used for local computation only */ +enum tt_client_flags { + TT_CLIENT_DEL = 1 << 0, + TT_CLIENT_ROAM = 1 << 1, + TT_CLIENT_WIFI = 1 << 2, + TT_CLIENT_NOPURGE = 1 << 8, + TT_CLIENT_NEW = 1 << 9, + TT_CLIENT_PENDING = 1 << 10 +}; + +struct batman_ogm_packet { uint8_t packet_type; uint8_t version; /* batman version field */ + uint8_t ttl; 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_tt; uint8_t gw_flags; /* flags related to gateway class */ - uint8_t align; + uint8_t tq; + uint8_t tt_num_changes; + uint8_t ttvn; /* translation table version number */ + uint16_t tt_crc; } __packed; -#define BAT_PACKET_LEN sizeof(struct batman_packet) +#define BATMAN_OGM_LEN sizeof(struct batman_ogm_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 msg_type; /* see ICMP message types above */ uint8_t dst[6]; uint8_t orig[6]; uint16_t seqno; uint8_t uid; + uint8_t reserved; } __packed; #define BAT_RR_LEN 16 @@ -86,8 +126,8 @@ struct icmp_packet { 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 msg_type; /* see ICMP message types above */ uint8_t dst[6]; uint8_t orig[6]; uint16_t seqno; @@ -99,16 +139,19 @@ struct icmp_packet_rr { struct unicast_packet { uint8_t packet_type; uint8_t version; /* batman version field */ - uint8_t dest[6]; uint8_t ttl; + uint8_t ttvn; /* destination translation table version number */ + uint8_t dest[6]; } __packed; struct unicast_frag_packet { uint8_t packet_type; uint8_t version; /* batman version field */ - uint8_t dest[6]; uint8_t ttl; + uint8_t ttvn; /* destination translation table version number */ + uint8_t dest[6]; uint8_t flags; + uint8_t align; uint8_t orig[6]; uint16_t seqno; } __packed; @@ -116,21 +159,61 @@ struct unicast_frag_packet { struct bcast_packet { uint8_t packet_type; uint8_t version; /* batman version field */ - uint8_t orig[6]; uint8_t ttl; + uint8_t reserved; uint32_t seqno; + uint8_t orig[6]; } __packed; struct vis_packet { uint8_t packet_type; uint8_t version; /* batman version field */ + uint8_t ttl; /* TTL */ 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 entries; /* number of entries behind this struct */ + uint8_t reserved; uint8_t vis_orig[6]; /* originator that announces its neighbors */ uint8_t target_orig[6]; /* who should receive this packet */ uint8_t sender_orig[6]; /* who sent or rebroadcasted this packet */ } __packed; +struct tt_query_packet { + uint8_t packet_type; + uint8_t version; /* batman version field */ + uint8_t ttl; + /* the flag field is a combination of: + * - TT_REQUEST or TT_RESPONSE + * - TT_FULL_TABLE */ + uint8_t flags; + uint8_t dst[ETH_ALEN]; + uint8_t src[ETH_ALEN]; + /* the ttvn field is: + * if TT_REQUEST: ttvn that triggered the + * request + * if TT_RESPONSE: new ttvn for the src + * orig_node */ + uint8_t ttvn; + /* tt_data field is: + * if TT_REQUEST: crc associated with the + * ttvn + * if TT_RESPONSE: table_size */ + uint16_t tt_data; +} __packed; + +struct roam_adv_packet { + uint8_t packet_type; + uint8_t version; + uint8_t ttl; + uint8_t reserved; + uint8_t dst[ETH_ALEN]; + uint8_t src[ETH_ALEN]; + uint8_t client[ETH_ALEN]; +} __packed; + +struct tt_change { + uint8_t flags; + uint8_t addr[ETH_ALEN]; +} __packed; + #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |