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104 commits

Author SHA1 Message Date
Ondrej Zajicek (work)
5509e17d0c BGP: Support for AS confederations (RFC 5065) 2017-01-22 16:32:42 +01:00
Ondrej Zajicek (work)
ac3ad139f6 BGP: Add support for flowspec (RFC 5575) 2016-12-07 18:29:34 +01:00
Ondrej Zajicek (work)
d15b0b0a1b BGP redesign 
Integrated and extensible BGP with generalized AFI handling,
support for IPv4+IPv6 AFI and unicast+multicast SAFI.
 2016-12-07 14:20:52 +01:00
Jan Moskyto Matejka
3e236955c9 Build: switch on -Wextra, get rid of most of the warnings 
There are several unresolved -Wmissing-field-initializers on older
versions of GCC than 5.1, all of them false positive.
 2016-11-01 14:52:54 +01:00
Ondrej Zajicek (work)
66dbdbd993 BGP: Support for large communities 
Add support for large communities (draft-ietf-idr-large-community),
96bit alternative to RFC 1997 communities.

Thanks to Matt Griswold for the original patch.
 2016-10-03 12:48:56 +02:00
Ondrej Zajicek (work)
775a5a8195 BGP: Skip empty path segments in received AS_PATH 
Although RFC 4271 does not forbid empty path segments, they are useless
and some implementations consider them invalid. It is clarified in RFC 7606,
specifying that AS_PATH with empty segment is considered malformed.
 2016-06-29 14:24:32 +02:00
Ondrej Zajicek
8d9eef1771 BGP multipath support 
Kernel option 'merge paths' allows to merge routes exported to kernel
protocol (currently BGP and static routes) to multipath routes.
 2015-06-08 02:24:08 +02:00
Pavel Tvrdík
ae80a2de95 unsigned [int] -> uint 2015-06-08 02:24:08 +02:00
Ondrej Zajicek
dfc7a6c6a0 Fixes potential alignment bug in BGP. 
Thanks to Andrew (seti.kr.ua) for the bug report.
 2015-02-21 12:24:30 +01:00
Ondrej Zajicek
88a183c6c9 Integrated IP functions. 2014-10-24 11:11:43 +02:00
Ondrej Zajicek
e7d2ac4401 Finishes add-path. 
Fixes some bugs and uses generic hash implementation.
 2013-12-01 13:49:42 +01:00
Ondrej Zajicek
736e143fa5 Merge branch 'master' into add-path 
Conflicts:

	filter/filter.c
	nest/proto.c
	nest/rt-table.c
	proto/bgp/bgp.h
	proto/bgp/config.Y
 2013-11-23 11:50:34 +01:00
Ondrej Zajicek
a15dab76f9 Implements 'allow local as' option. 
Similar to allowas-in option on other routers.
 2013-10-21 14:59:35 +02:00
Ondrej Zajicek
48bc232f08 Implements 'next hop keep' option for BGP. 
This option allows to keep the received next hop even in cases when
the route is sent to an interface with a different subnet.
 2013-04-16 17:27:34 +02:00
Ondrej Filip
e16469bc4d AS# in bgp.agreggator was a signed integer - fixed. 2012-11-12 13:48:29 +01:00
Ondrej Zajicek
cf98be7b67 Allows rejected routes to be kept and examined. 
When 'import keep rejected' protocol option is activated, routes
rejected by the import filter are kept in the routing table, but they
are hidden and not propagated to other protocols. It is possible to
examine them using 'show route rejected'.
 2012-11-10 14:26:13 +01:00
Ondrej Zajicek
094d2bdb79 Implements ADD-PATH extension for BGP. 
Allows to send and receive multiple routes for one network by one BGP
session. Also contains necessary core changes to support this (routing
tables accepting several routes for one network from one protocol).
It needs some more cleanup before merging to the master branch.
 2012-08-14 16:46:43 +02:00
Ondrej Zajicek
26822d8fe1 Finalize RA_ACCEPTED handling. 2012-07-16 01:33:02 +02:00
Ondrej Zajicek
3ce1714279 Fixes a new bug in BGP route ordering. 2012-01-20 16:20:03 +01:00
Ondrej Zajicek
53ffbff39f Implements support for link-local addresses in BGP. 
Thanks Matthias Schiffer for the original patch.
 2012-01-08 15:31:34 +01:00
Ondrej Zajicek
be4cd99a36 Implements deterministic MED handling. 
Thanks to Alexander V. Chernikov for many suggestions.
 2011-12-22 13:20:29 +01:00
Ondrej Zajicek
6c4df70373 Fixes possible buffer overflow when printing BGP attributes. 
Thanks to Alexander V. Chernikov for the patch.
 2011-09-03 21:59:40 +02:00
Ondrej Zajicek
42a0c05408 BGP Extended communities. 2011-08-14 13:55:02 +02:00
Ondrej Zajicek
fdf16eb658 Prints full community lists during 'show route all'. 2011-07-03 19:43:30 +02:00
Ondrej Zajicek
73272f04af Adds BGP option related to MED handling. 
Adds option 'med metric' allows to compare MEDs
between routes received from different neighbors.
 2011-04-22 16:13:27 +02:00
Ondrej Zajicek
06fb60c4af Fixes some problems in BGP error handling. 2011-03-30 01:09:18 +02:00
Ondrej Zajicek
7e95c05d88 Core multipath support. 2010-12-07 23:33:55 +01:00
Ondrej Zajicek
d1e146f2f8 Implements IGP metric comparison for BGP routes. 2010-07-31 01:04:32 +02:00
Ondrej Zajicek
ac3ac49a71 Adds route resolvability test. 2010-07-28 13:13:34 +02:00
Ondrej Zajicek
9be9a26413 Implements proper multihop BGP. 
Also does some incompatible changes to config file syntax,
like removing 'via IP' from multihop option.
 2010-07-12 17:39:39 +02:00
Ondrej Zajicek
cfe34a316e Implements hostcache and recursive next hops. 
Hostcache is a structure for monitoring changes in a routing table that
is used for routes with dynamic/recursive next hops. This is needed for
proper iBGP next hop handling.
 2010-07-05 17:50:19 +02:00
Ondrej Zajicek
6b5a8649a4 Do not export empty community list attribute in BGP. 2010-04-08 17:56:56 +02:00
Ondrej Zajicek
3075824dbd Comparing cluster list length should be later in bgp_rte_better(). 2010-02-26 14:09:24 +01:00
Ondrej Zajicek
e81b440f68 Fix configure to enable warnings and fix most of them. 2010-02-21 14:34:53 +01:00
Ondrej Zajicek
dca75fd7c2 Removes phantom protocol from the pipe design. 
It seems that by adding one pipe-specific exception to route
announcement code and by adding one argument to rt_notify() callback i
could completely eliminate the need for the phantom protocol instance
and therefore make the code more straightforward. It will also fix some
minor bugs (like ignoring debug flag changes from the command line).
 2010-02-13 12:26:26 +01:00
Ondrej Zajicek
41677025ee Changes 'ignore communities' to 'interpret communities'. 2010-01-28 15:59:18 +01:00
Ondrej Zajicek
6cb8f742f1 Better handling of well-known communities. 
Process well-known communities before the export filter (old behavior is
to process these attributes after, which does not allow to send route
with such community) and just for routes received from other BGP
protocols. Also fixes a bug in next_hop check.
 2010-01-27 17:22:57 +01:00
Ondrej Zajicek
fbcb7d5faf Change default LOCAL_PREF attribute to 100 (suggested value by RFC 4277). 2009-12-21 11:50:42 +01:00
Ondrej Zajicek
0225ea4edd Merge branch 'ospf3' into new 2009-12-15 00:32:13 +01:00
Ondrej Zajicek
f2d7da742b Fixes export of routes with link-local gw. 2009-12-15 00:30:07 +01:00
Ondrej Zajicek
43c1ceccb9 Remove bgp_as4_support variable. 2009-12-14 23:31:25 +01:00
Ondrej Zajicek
d0e2d6d1e0 Show both IPv6 next hop addresses in BGP. 2009-11-17 14:17:23 +01:00
Ondrej Zajicek
3228c72cc0 Implements RFC 5004 - prefer older external routes. 2009-11-17 11:41:29 +01:00
Ondrej Zajicek
52b9b2a178 Rename as_path_get_last/as_path_get_first to be consistent. 2009-10-12 20:44:58 +02:00
Ondrej Zajicek
05198c12f4 Some cleanups. 2009-08-27 19:01:04 +02:00
Ondrej Zajicek
949bd34e81 Fixes bug related to AS2->AS4 conversion. 2009-08-25 19:01:37 +02:00
Ondrej Zajicek
da95a7a7da Fixes bug in ORIGIN check. 2009-06-23 11:00:38 +02:00
Ondrej Zajicek
29c430f856 Changes handling of AS_PATH_CONFED_* segments in AS_PATH. 
Although standard says that if we receive AS_PATH_CONFED_*
(and we are not a part of a confederation) segment, we should
drop session, nobody does that and it is unwise to do that.

Now we drop session just in case that peer ASN is in
AS_PATH_CONFED_* segment (to detect peer that considers BIRD
as a part of its confederation).
 2009-06-23 10:50:57 +02:00
Ondrej Zajicek
b7a735ea9d Allow 'third party' BGP updates for originated routes. 2009-04-29 22:17:40 +02:00
Ondrej Zajicek
4827b69ff4 Fixes BGP IPv6 link local next hop handling. 
When sending 'third party' BGP update, Bird used bogus link local
addresses instead of addresses it received before.
 2009-04-29 18:58:24 +02:00