diff options
| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2022-01-01 06:27:13 +0100 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2022-01-02 09:31:17 +0100 |
| commit | 938f2e0b57ffe8a6df71e1e177b2978b1b33fe5e (patch) | |
| tree | af91fc2774265e82b9c76975cb0fca1aa79b921f /net/core/devlink.c | |
| parent | 66f4beaa6c1d28161f534471484b2daa2de1dce0 (diff) | |
batman-adv: mcast: don't send link-local multicast to mcast routers
The addition of routable multicast TX handling introduced a
bug/regression for packets with a link-local multicast destination:
These packets would be sent to all batman-adv nodes with a multicast
router and to all batman-adv nodes with an old version without multicast
router detection.
This even disregards the batman-adv multicast fanout setting, which can
potentially lead to an unwanted, high number of unicast transmissions or
even congestion.
Fixing this by avoiding to send link-local multicast packets to nodes in
the multicast router list.
Fixes: 11d458c1cb9b ("batman-adv: mcast: apply optimizations for routable packets, too")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/core/devlink.c')
0 files changed, 0 insertions, 0 deletions