From: Linus Lüssing Date: Sat, 15 Feb 2014 16:47:53 +0000 (+0100) Subject: batman-adv: Add IPv4 link-local/IPv6-ll-all-nodes multicast support X-Git-Tag: v3.15-rc1~113^2~107^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab49886e3da73b6b35ece21006e191910427bb30;p=pandora-kernel.git batman-adv: Add IPv4 link-local/IPv6-ll-all-nodes multicast support With this patch a node may additionally perform the dropping or unicasting behaviour for a link-local IPv4 and link-local-all-nodes IPv6 multicast packet, too. The extra counter and BATADV_MCAST_WANT_ALL_UNSNOOPABLES flag is needed because with a future bridge snooping support integration a node with a bridge on top of its soft interface is not able to reliably detect its multicast listeners for IPv4 link-local and the IPv6 link-local-all-nodes addresses anymore (see RFC4541, section 2.1.2.2 and section 3). Even though this new flag does make "no difference" now, it'll ensure a seamless integration of multicast bridge support without needing to break compatibility later. Also note, that even with multicast bridge support it won't be possible to optimize 224.0.0.x and ff02::1 towards nodes with bridges, they will always receive these ranges. Signed-off-by: Linus Lüssing Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- Reading git-diff-tree failed