[maint,v2,0/4] batman-adv: mcast: TT/BLA fixes
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Message
Linus Lüssing
Sept. 4, 2020, 6:27 p.m. UTC
Hi, These are four fixes for issues which occur when using the batman-adv multicast-to-unicast feature. The first one fixes an issue of an intermediate node snitching multicast-to-unicast packets and either dropping it or rerouting it to another node. Which causes lost packets on some and duplicate packets on other nodes. Patches 2 to 4 fix issues when using the multicast-to-unicast conversion while BLA is enabled and some nodes are sharing the same LAN side. Here it either causes "just" duplicates in the "good" scenario (Patch 4/4). But can also cause multiple BLA backbones to send a frame from the mesh into the same, shared LAN segment (Patch 3). Or in the worst case, even reflect packets back to the host in the shared LAN, which completely confuses switches/bridges and ICMPv6 Neighbor Discovery. Changelog v2: * Adding "Fixes:" lines Regards, Linus