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3 commits

Author SHA1 Message Date
Ondrej Zajicek (work) 5d6ca22085 Babel: Send wildcard retractions on shutdown and startup 
This makes BIRD send a wildcard retraction on all interfaces before
shutting down and right after starting up. This helps ensure that
neighbours will discard the announced routes as soon as possible,
rather than only after the normal timeout procedures.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
 2016-07-19 14:23:41 +02:00
Ondrej Zajicek (work) ecae2f43f3 Babel: Rework handling of retractions 
An update with wildcard AE and infinite metric should be treated as a
global retraction of all prefixes announced by that neighbour, per
section 4.4.9 of the RFC. In addition, router ID and seqno in retraction
updates should be ignored. This reworks the handling of retractions and
adjusts the parser to handle all this correctly.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
 2016-07-19 13:33:02 +02:00
Ondrej Zajicek (work) 937e75d8f1 Add the Babel routing protocol (RFC 6126) 
This patch implements the IPv6 subset of the Babel routing protocol.
Based on the patch from Toke Hoiland-Jorgensen, with some heavy
modifications and bugfixes.

Thanks to Toke Hoiland-Jorgensen for the original patch.
 2016-04-28 18:01:40 +02:00