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linux/net/batman-adv
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Linus Lüssing 938f2e0b57 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: 11d458c1cb ("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>
2022-01-02 09:31:17 +01:00
..
bat_algo.c batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_algo.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_iv_ogm.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
bat_iv_ogm.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_v_elp.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
bat_v_elp.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_v_ogm.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
bat_v_ogm.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_v.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
bat_v.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bitarray.c batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bitarray.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bridge_loop_avoidance.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-28 10:43:58 -07:00
bridge_loop_avoidance.h batman-adv: Remove the repeated declaration 2021-05-30 13:38:27 +02:00
distributed-arp-table.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
distributed-arp-table.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
fragmentation.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
fragmentation.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
gateway_client.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
gateway_client.h batman-adv: Check ptr for NULL before reducing its refcnt 2021-08-08 20:21:40 +02:00
gateway_common.c batman-adv: Switch to kstrtox.h for kstrtou64 2021-08-08 20:05:46 +02:00
gateway_common.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
hard-interface.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
hard-interface.h batman-adv: Check ptr for NULL before reducing its refcnt 2021-08-08 20:21:40 +02:00
hash.c batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
hash.h batman-adv: Fix spelling mistakes 2021-06-02 08:46:03 +02:00
Kconfig This feature/cleanup patchset is an updated version of the pull request 2021-02-08 11:32:40 -08:00
log.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
log.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
main.c net: batman-adv: fix error handling 2021-10-26 14:47:12 +01:00
main.h batman-adv: Start new development cycle 2021-08-08 20:05:46 +02:00
Makefile batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
multicast.c batman-adv: mcast: don't send link-local multicast to mcast routers 2022-01-02 09:31:17 +01:00
multicast.h batman-adv: mcast: don't send link-local multicast to mcast routers 2022-01-02 09:31:17 +01:00
netlink.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
netlink.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
network-coding.c net: batman-adv: fix error handling 2021-10-26 14:47:12 +01:00
network-coding.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
originator.c batman-adv: Drop NULL check before dropping references 2021-08-08 20:21:40 +02:00
originator.h batman-adv: Check ptr for NULL before reducing its refcnt 2021-08-08 20:21:40 +02:00
routing.c batman-adv: prepare for const netdev->dev_addr 2021-10-20 14:22:25 +01:00
routing.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
send.c batman-adv: bcast: remove remaining skb-copy calls 2021-08-18 18:39:00 +02:00
send.h batman-adv: bcast: queue per interface, if needed 2021-05-17 12:00:44 +02:00
soft-interface.c batman-adv: mcast: don't send link-local multicast to mcast routers 2022-01-02 09:31:17 +01:00
soft-interface.h batman-adv: Check ptr for NULL before reducing its refcnt 2021-08-08 20:21:40 +02:00
tp_meter.c Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
tp_meter.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
trace.c batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
trace.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
translation-table.c net: batman-adv: fix error handling 2021-10-26 14:47:12 +01:00
translation-table.h batman-adv: Check ptr for NULL before reducing its refcnt 2021-08-08 20:21:40 +02:00
tvlv.c batman-adv: prepare for const netdev->dev_addr 2021-10-20 14:22:25 +01:00
tvlv.h batman-adv: prepare for const netdev->dev_addr 2021-10-20 14:22:25 +01:00
types.h batman-adv: Fix order of kernel doc in batadv_priv 2021-03-23 21:49:14 +01:00