Commit graph

101 commits

Author SHA1 Message Date
Ondrej Zajicek 165a622727 Adds support for fallback to capabilityless BGP connect
When capability related error is received, next connect will be
without capabilities. Also cease error subcodes descriptions
(according to [RFC4486]) are added.
2008-12-24 17:24:41 +01:00
Ondrej Zajicek 591211557f Fixes bug related to reconfiguration of BGP.
BGP keeps its copy of configuration ptr and didn't update it during
reconfiguration. But old configuration is freed during reconfiguration.
That leads to unnecessary reset of BGP connection during reconfiguration
(old conf is corrupted and therefore different) and possibly other strange
behavior.
2008-12-24 12:18:10 +01:00
Ondrej Zajicek 11b32d9117 Major changes to BGP
Fixes two race conditions causing crash of Bird, several unhandled
cases during BGP initialization, and some other bugs. Also changes
handling of startup delay to be more useful and implement
reporting of last error in 'show protocols' command.
2008-12-19 01:34:39 +01:00
Ondrej Zajicek aebe06b40c Proper format functions for ORIGINATOR_ID, CLUSTER_LIST 2008-11-08 23:33:22 +01:00
Ondrej Zajicek 1389f3699f Fixes bugs in IPv6 code caused by recent commits. 2008-11-05 21:39:04 +01:00
Ondrej Zajicek a39b165e45 Multihop BGP was completely broken, because listening socket has always
ttl 1.
2008-11-01 16:58:40 +01:00
Ondrej Zajicek a92fe60717 Implementation of route server. 2008-11-01 12:55:43 +01:00
Ondrej Zajicek e16466b379 Fix race condition that breaks BGP connections after reconfigure.
RFC says that only connections in OpenConfirm and Established state
should participate in connection collision detection.

The current implementation leads to race condition when both sides
are trying to connect at the almost same time, then both sides
receive OPEN message by different connections at the almost same
time and close the other connection. Both connections are
closed and the both sides end in  start/idle or start/active
state.
2008-10-29 14:16:34 +01:00
Ondrej Zajicek b6bf284a90 Bugfixes in MULIT_EXIT_DISC attribute handling.
- Old MED handling was completely different from behavior
   specified in RFCs - for example they havn't been propagated
   to neighboring areas.

 - Update tie-breaking according to RFC 4271.

 - Change default value for 'default bgp_med' configuration
   option according to RFC 4271.
2008-10-26 22:59:21 +01:00
Ondrej Zajicek 4819c3e17a Bugfix in LOCAL_PREF attribute handling. 2008-10-26 22:54:23 +01:00
Ondrej Zajicek ba5ed6f3e4 Implementation of an option for disabling AS4 support per BGP instance. 2008-10-26 22:48:02 +01:00
Ondrej Zajicek 4847a894bf Implementation of route reflection for BGP 2008-10-26 22:45:09 +01:00
Ondrej Zajicek d51aa28190 Implementation of MD5 authentication of BGP sessions. 2008-10-26 22:42:39 +01:00
Ondrej Zajicek 11cb620266 Implementation of 4B ASN support for BGP 2008-10-26 22:36:08 +01:00
Ondrej Filip 85ae398a61 The source address configuration in BGP added. 2008-08-24 23:20:46 +00:00
Ondrej Filip 98ac61766d A lot of changes:
- metric is 3 byte long now
	- summary lsa originating
	- more OSPF areas possible
	- virtual links
	- better E1/E2 routes handling
	- some bug fixes..

I have to do:
	- md5 auth (last mandatory item from rfc2328)
	- !!!!DEBUG!!!!! (mainly virtual link system has probably a lot of bugs)
	- 2328 appendig E
2004-06-25 16:39:53 +00:00
Martin Mares 9831e5916f Staticized lots of local functions. 2004-06-05 09:58:23 +00:00
Martin Mares e21423bab8 ... in BGP. 2004-06-05 09:27:17 +00:00
Ondrej Filip 7fdd338c36 ALIGN -> BIRD_ALIGN 2004-06-01 10:28:25 +00:00
Martin Mares 38a608c55a Rewritten the I/O loop. All socket operations are now safe, meaning that
you can delete the socket from anywhere in the hooks and nothing should break.
Also, the receive/transmit buffers are now regular xmalloc()'ed buffers,
not separate resources which would need shuffling around between pools.

sk_close() is gone, use rfree() instead.
2004-05-31 21:48:19 +00:00
Martin Mares 6a57bb3110 Killed a couple of unused variables.
We really should compile with warnings enabled.
2004-05-31 20:57:38 +00:00
Martin Mares 6ea8ca1469 Updated a comment. 2003-02-23 10:22:04 +00:00
Martin Mares 11d4474c17 Better selection of link-local NLRI addresses, at least for our own
address. Need to do it better for the other neighbors -- the current
solution works only if they use the standard 64+64 global addresses
and the interface identifier in lower 64 bits is the same as for the
link-scope addresses.
2003-02-22 22:47:45 +00:00
Martin Mares 8c92bf6a0d Temporary fix for BGP protocol capability announcement for IPv6 mode. 2003-02-22 10:40:35 +00:00
Martin Mares 60a72ed49b Fixed length check miscalculation in IPv6 receive path. 2003-02-22 10:25:22 +00:00
Martin Mares 7d875e094b Added missing includes. 2002-11-13 08:47:06 +00:00
Martin Mares de10a974f2 Added missing semicolons. 2002-11-13 08:46:12 +00:00
Martin Mares bcbdcbb6ae Don't accept incoming connections when the neighbor is not up. 2000-06-20 07:49:08 +00:00
Martin Mares 58f7d004fd Fixes to the progdoc. 2000-06-07 13:25:53 +00:00
Martin Mares 2e9b24211a Spelling fixes to progdoc. 2000-06-07 12:29:08 +00:00
Martin Mares 54e55169da BGP documented. 2000-06-04 17:06:18 +00:00
Martin Mares bc00185e5a Updated to new neighbor cache. 2000-06-01 13:00:19 +00:00
Martin Mares fcb5f4a725 Updated all the Doc files to new format. 2000-05-31 11:30:18 +00:00
Martin Mares 7294f68b3b path metric' and disable after error' are switches, not numeric clauses. 2000-05-29 22:08:04 +00:00
Martin Mares d2a7c0e9b2 Don't print trace messages about null updates. 2000-05-19 18:05:19 +00:00
Martin Mares 5e88d73025 BGP now reports originating AS and origin type in get_route_info(). 2000-05-19 11:01:41 +00:00
Martin Mares f4ab231746 bgp_get_status: If protocol is down, don't print BGP state. 2000-05-15 12:19:28 +00:00
Martin Mares e3f2d5fce3 Cleanup of configuration.
o  Use `expr' instead of `NUM' and `ipa' instead of `IPA',
   so that defined symbols work everywhere.
o  `define' now accepts both numbers and IP addresses.
o  Renamed `ipa' in filters to `fipa'.

Pavel, please update filters to accept define'd symbols as well.
2000-05-15 11:48:23 +00:00
Martin Mares 02bd064ab7 Adapted to new rt_notify semantics. 2000-05-13 11:02:02 +00:00
Martin Mares 2138d3b4d8 Use correct flags for the LOCAL_PREF attribute.
When an invalid attribute is found, copy the entire attribute to the data
section of the NOTIFICATION message.
2000-05-11 12:20:07 +00:00
Martin Mares c09d1e8df2 KEEPALIVE TIME ought to set keepalive time, not connect retry time :) 2000-05-08 22:32:17 +00:00
Martin Mares 0c3588bf5e Don't crash when the socket gets closed between updates.
Also, this time not only update `remains', but update it right :)
2000-05-08 14:53:22 +00:00
Martin Mares 9ff8f334ed Update `remains' counter correctly. 2000-05-08 14:32:19 +00:00
Martin Mares 93d6bf38a6 The bgp_list is gone. Incomming connections are now handled in a much
more straightforward manner by scanning the active configuration for
matching protocols.
2000-05-08 13:26:30 +00:00
Martin Mares 507eea4c8b Don't generate corrupted packets when sending only route deletes. 2000-05-08 12:37:24 +00:00
Martin Mares 79681f4a19 Link the instance to the global BGP list as soon as possible. 2000-05-08 11:04:22 +00:00
Martin Mares acfce55c86 Setup of incoming connection is now a separate function. 2000-05-07 10:41:45 +00:00
Martin Mares ab1129c1bd Added skeleton Doc files for the whole developer's documentation. 2000-05-05 17:17:42 +00:00
Martin Mares beaf86e13c Removed RTS_RIP_EXT. 2000-05-04 21:23:10 +00:00
Martin Mares 2a149b18cc Unused variables in IPv6 code. 2000-05-04 20:38:44 +00:00