diff options
Diffstat (limited to 'include/uapi/linux/batadv_packet.h')
| -rw-r--r-- | include/uapi/linux/batadv_packet.h | 150 |
1 files changed, 92 insertions, 58 deletions
diff --git a/include/uapi/linux/batadv_packet.h b/include/uapi/linux/batadv_packet.h index 894d8d2f713d..439132a819ea 100644 --- a/include/uapi/linux/batadv_packet.h +++ b/include/uapi/linux/batadv_packet.h @@ -1,19 +1,7 @@ /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */ -/* Copyright (C) 2007-2018 B.A.T.M.A.N. contributors: +/* Copyright (C) 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, see <http://www.gnu.org/licenses/>. */ #ifndef _UAPI_LINUX_BATADV_PACKET_H_ @@ -21,6 +9,7 @@ #include <asm/byteorder.h> #include <linux/if_ether.h> +#include <linux/stddef.h> #include <linux/types.h> /** @@ -38,6 +27,7 @@ * @BATADV_CODED: network coded packets * @BATADV_ELP: echo location packets for B.A.T.M.A.N. V * @BATADV_OGM2: originator messages for B.A.T.M.A.N. V + * @BATADV_MCAST: multicast packet with multiple destination addresses * * @BATADV_UNICAST: unicast packets carrying unicast payload traffic * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original @@ -54,6 +44,7 @@ enum batadv_packettype { BATADV_CODED = 0x02, BATADV_ELP = 0x03, BATADV_OGM2 = 0x04, + BATADV_MCAST = 0x05, /* 0x40 - 0x7f: unicast */ #define BATADV_UNICAST_MIN 0x40 BATADV_UNICAST = 0x40, @@ -84,8 +75,8 @@ enum batadv_subtype { /** * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets - * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was - * previously received from someone else than the best neighbor. + * @BATADV_NOT_BEST_NEXT_HOP: flag is set when the ogm packet is forwarded and + * was previously received from someone other than the best neighbor. * @BATADV_PRIMARIES_FIRST_HOP: flag unused. * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a * one hop neighbor on the interface where it was originally received. @@ -119,12 +110,24 @@ enum batadv_icmp_packettype { * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for * 224.0.0.0/24 or ff02::1 * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets + * (both link-local and routable ones) * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets + * (both link-local and routable ones) + * @BATADV_MCAST_WANT_NO_RTR4: we have no IPv4 multicast router and therefore + * only need routable IPv4 multicast packets we signed up for explicitly + * @BATADV_MCAST_WANT_NO_RTR6: we have no IPv6 multicast router and therefore + * only need routable IPv6 multicast packets we signed up for explicitly + * @BATADV_MCAST_HAVE_MC_PTYPE_CAPA: we can parse, receive and forward + * batman-adv multicast packets with a multicast tracker TVLV. And all our + * hard interfaces have an MTU of at least 1280 bytes. */ enum batadv_mcast_flags { BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0, BATADV_MCAST_WANT_ALL_IPV4 = 1UL << 1, BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2, + BATADV_MCAST_WANT_NO_RTR4 = 1UL << 3, + BATADV_MCAST_WANT_NO_RTR6 = 1UL << 4, + BATADV_MCAST_HAVE_MC_PTYPE_CAPA = 1UL << 5, }; /* tt data subtypes */ @@ -176,14 +179,16 @@ enum batadv_bla_claimframe { * @BATADV_TVLV_TT: translation table tvlv * @BATADV_TVLV_ROAM: roaming advertisement tvlv * @BATADV_TVLV_MCAST: multicast capability tvlv + * @BATADV_TVLV_MCAST_TRACKER: multicast tracker tvlv */ enum batadv_tvlv_type { - BATADV_TVLV_GW = 0x01, - BATADV_TVLV_DAT = 0x02, - BATADV_TVLV_NC = 0x03, - BATADV_TVLV_TT = 0x04, - BATADV_TVLV_ROAM = 0x05, - BATADV_TVLV_MCAST = 0x06, + BATADV_TVLV_GW = 0x01, + BATADV_TVLV_DAT = 0x02, + BATADV_TVLV_NC = 0x03, + BATADV_TVLV_TT = 0x04, + BATADV_TVLV_ROAM = 0x05, + BATADV_TVLV_MCAST = 0x06, + BATADV_TVLV_MCAST_TRACKER = 0x07, }; #pragma pack(2) @@ -199,8 +204,8 @@ struct batadv_bla_claim_dst { /** * struct batadv_ogm_packet - ogm (routing protocol) packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @flags: contains routing relevant flags - see enum batadv_iv_flags * @seqno: sequence identification * @orig: address of the source node @@ -229,7 +234,7 @@ struct batadv_ogm_packet { * @packet_type: batman-adv packet type, part of the general header * @version: batman-adv protocol version, part of the general header * @ttl: time to live for this packet, part of the general header - * @flags: reseved for routing relevant flags - currently always 0 + * @flags: reserved for routing relevant flags - currently always 0 * @seqno: sequence number * @orig: originator mac address * @tvlv_len: length of the appended tvlv buffer (in bytes) @@ -251,7 +256,7 @@ struct batadv_ogm2_packet { /** * struct batadv_elp_packet - elp (neighbor discovery) packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header + * @version: batman-adv protocol version, part of the general header * @orig: originator mac address * @seqno: sequence number * @elp_interval: currently used ELP sending interval in ms @@ -269,15 +274,15 @@ struct batadv_elp_packet { /** * struct batadv_icmp_header - common members among all the ICMP packets * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @msg_type: ICMP packet type * @dst: address of the destination node * @orig: address of the source node * @uid: local ICMP socket identifier * @align: not used - useful for alignment purposes only * - * This structure is used for ICMP packets parsing only and it is never sent + * This structure is used for ICMP packet parsing only and it is never sent * over the wire. The alignment field at the end is there to ensure that * members are padded the same way as they are in real packets. */ @@ -295,8 +300,8 @@ struct batadv_icmp_header { /** * struct batadv_icmp_packet - ICMP packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @msg_type: ICMP packet type * @dst: address of the destination node * @orig: address of the source node @@ -319,8 +324,8 @@ struct batadv_icmp_packet { /** * struct batadv_icmp_tp_packet - ICMP TP Meter packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @msg_type: ICMP packet type * @dst: address of the destination node * @orig: address of the source node @@ -362,8 +367,8 @@ enum batadv_icmp_tp_subtype { /** * struct batadv_icmp_packet_rr - ICMP RouteRecord packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @msg_type: ICMP packet type * @dst: address of the destination node * @orig: address of the source node @@ -401,8 +406,8 @@ struct batadv_icmp_packet_rr { /** * struct batadv_unicast_packet - unicast packet for network payload * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @ttvn: translation table version number * @dest: originator destination of the unicast packet */ @@ -437,8 +442,8 @@ struct batadv_unicast_4addr_packet { /** * struct batadv_frag_packet - fragmented packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @dest: final destination used when routing fragments * @orig: originator of the fragment used when merging the packet * @no: fragment number within this sequence @@ -471,8 +476,8 @@ struct batadv_frag_packet { /** * struct batadv_bcast_packet - broadcast packet for network payload * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @reserved: reserved byte for alignment * @seqno: sequence identification * @orig: originator of the broadcast packet @@ -490,12 +495,31 @@ struct batadv_bcast_packet { }; /** + * struct batadv_mcast_packet - multicast packet for network payload + * @packet_type: batman-adv packet type, part of the general header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header + * @reserved: reserved byte for alignment + * @tvlv_len: length of the appended tvlv buffer (in bytes) + */ +struct batadv_mcast_packet { + __u8 packet_type; + __u8 version; + __u8 ttl; + __u8 reserved; + __be16 tvlv_len; + /* "4 bytes boundary + 2 bytes" long to make the payload after the + * following ethernet header again 4 bytes boundary aligned + */ +}; + +/** * struct batadv_coded_packet - network coded packet * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @first_source: original source of first included packet - * @first_orig_dest: original destinal of first included packet + * @first_orig_dest: original destination of first included packet * @first_crc: checksum of first included packet * @first_ttvn: tt-version number of first included packet * @second_ttl: ttl of second packet @@ -527,8 +551,8 @@ struct batadv_coded_packet { /** * struct batadv_unicast_tvlv_packet - generic unicast packet with tvlv payload * @packet_type: batman-adv packet type, part of the general header - * @version: batman-adv protocol version, part of the genereal header - * @ttl: time to live for this packet, part of the genereal header + * @version: batman-adv protocol version, part of the general header + * @ttl: time to live for this packet, part of the general header * @reserved: reserved field (for packet alignment) * @src: address of the source * @dst: address of the destination @@ -570,19 +594,6 @@ struct batadv_tvlv_gateway_data { }; /** - * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container - * @flags: translation table flags (see batadv_tt_data_flags) - * @ttvn: translation table version number - * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by - * one batadv_tvlv_tt_vlan_data object per announced vlan - */ -struct batadv_tvlv_tt_data { - __u8 flags; - __u8 ttvn; - __be16 num_vlan; -}; - -/** * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through * the tt tvlv container * @crc: crc32 checksum of the entries belonging to this vlan @@ -596,6 +607,21 @@ struct batadv_tvlv_tt_vlan_data { }; /** + * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container + * @flags: translation table flags (see batadv_tt_data_flags) + * @ttvn: translation table version number + * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by + * one batadv_tvlv_tt_vlan_data object per announced vlan + * @vlan_data: array of batadv_tvlv_tt_vlan_data objects + */ +struct batadv_tvlv_tt_data { + __u8 flags; + __u8 ttvn; + __be16 num_vlan; + struct batadv_tvlv_tt_vlan_data vlan_data[] __counted_by_be(num_vlan); +}; + +/** * struct batadv_tvlv_tt_change - translation table diff data * @flags: status indicators concerning the non-mesh client (see * batadv_tt_client_flags) @@ -630,6 +656,14 @@ struct batadv_tvlv_mcast_data { __u8 reserved[3]; }; +/** + * struct batadv_tvlv_mcast_tracker - payload of a multicast tracker tvlv + * @num_dests: number of subsequent destination originator MAC addresses + */ +struct batadv_tvlv_mcast_tracker { + __be16 num_dests; +}; + #pragma pack() #endif /* _UAPI_LINUX_BATADV_PACKET_H_ */ |