On Monday, 26 December 2022 21:42:35 CET Linus Lüssing wrote: > Implement functionality to receive and forward a new TVLV capable > multicast packet type. > > The new batman-adv multicast packet type allows to contain several > originator destination addresses within a TVLV. Routers on the way will > potentially split the batman-adv multicast packet and adjust its tracker > TVLV contents. > > Routing decisions are still based on the selected BATMAN IV or BATMAN V > routing algorithm. So this new batman-adv multicast packet type retains > the same loop-free properties. > > Also a new OGM multicast TVLV flag is introduced to signal to other > nodes that we are capable of handling a batman-adv multicast packet and > multicast tracker TVLV. And that all of our hard interfaces have an MTU > of at least 1280 bytes (IPv6 minimum MTU), as a simple solution for now > to avoid MTU issues while forwarding. > > Signed-off-by: Linus Lüssing > --- > include/uapi/linux/batadv_packet.h | 48 ++++- > net/batman-adv/Makefile | 1 + > net/batman-adv/main.c | 2 + > net/batman-adv/multicast.c | 48 ++++- > net/batman-adv/multicast.h | 5 + > net/batman-adv/multicast_forw.c | 274 +++++++++++++++++++++++++++++ > net/batman-adv/originator.c | 1 + > net/batman-adv/routing.c | 68 +++++++ > net/batman-adv/routing.h | 11 ++ > net/batman-adv/soft-interface.c | 12 ++ > net/batman-adv/types.h | 64 +++++++ > 11 files changed, 523 insertions(+), 11 deletions(-) > create mode 100644 net/batman-adv/multicast_forw.c ecsv/pu: checkpatch ./net/batman-adv/multicast_forw.c ----------------------------------------------------- CHECK: Macro argument reuse 'num_dests' - possible side-effects? #25: FILE: ./net/batman-adv/multicast_forw.c:25: +#define batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) \ + for (; num_dests; num_dests--, (dest) += ETH_ALEN) total: 0 errors, 0 warnings, 1 checks, 274 lines checked