Ondrej Zajicek
10ab65a8c9
Fixes one recently introduced IPv6 BGP compatibility problem.
2009-05-06 15:18:52 +02:00
Ondrej Zajicek
4827b69ff4
Fixes BGP IPv6 link local next hop handling.
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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
Ondrej Zajicek
ad440a570b
Fixes handling of 'next hop self' and 'source address' configuration
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options.
2009-04-28 18:11:56 +02:00
Ondrej Zajicek
64cf11f544
Fixes BGPv6 bug - missing endianity conversion.
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Also removes code skipping SNPAs
(obsoleted by newer RFCs, should be ignored).
2009-04-23 23:15:07 +02:00
Ondrej Zajicek
8f0c887a52
Fixe bug in BGPv6 that causes to send invalid network withdraws.
2009-04-23 14:16:05 +02:00
Ondrej Zajicek
e8ba557c7f
Update capability handshake options
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Add 'capabilities' option, change default behavior to advertise ipv4,
add some checks and ignore incoming capabilities when capabilities
are disabled.
2009-03-13 12:49:44 +01:00
Ondrej Zajicek
e3299ab148
Added Cisco and Quagga capability workaround option.
2009-03-05 11:52:47 +01:00
Ondrej Zajicek
82a79586e5
Better handling of too long attributes
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This patch extends the length for attributes from 1024 to 2048
(because both AS_PATH and AS4_PATH attributes take 2+4 B per AS).
If there is not enough space for attributes, Bird skips that
route group. Old behavior (skipping remaining attributes)
leads to skipping required attributes and session drop.
2009-02-27 15:24:46 +01:00
Ondrej Zajicek
cb53039271
Rate limit for most abundant log messages
2009-02-26 14:23:54 +01:00
Ondrej Zajicek
165a622727
Adds support for fallback to capabilityless BGP connect
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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
11b32d9117
Major changes to BGP
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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
1389f3699f
Fixes bugs in IPv6 code caused by recent commits.
2008-11-05 21:39:04 +01:00
Ondrej Zajicek
e16466b379
Fix race condition that breaks BGP connections after reconfigure.
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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
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
11cb620266
Implementation of 4B ASN support for BGP
2008-10-26 22:36:08 +01:00
Martin Mares
e21423bab8
... in BGP.
2004-06-05 09:27:17 +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
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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
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
d2a7c0e9b2
Don't print trace messages about null updates.
2000-05-19 18:05:19 +00:00
Martin Mares
0c3588bf5e
Don't crash when the socket gets closed between updates.
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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
507eea4c8b
Don't generate corrupted packets when sending only route deletes.
2000-05-08 12:37:24 +00:00
Martin Mares
2a149b18cc
Unused variables in IPv6 code.
2000-05-04 20:38:44 +00:00
Martin Mares
93a786cb03
Removed a lot of unused variables.
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Please try compiling your code with --enable-warnings to see them. (The
unused parameter warnings are usually bogus, the unused variable ones
are very useful, but gcc is unable to control them separately.)
2000-05-04 20:30:36 +00:00
Martin Mares
cf3d6470d7
IPv6 BGP support finished. Also simplified the BGP stuff a bit.
2000-05-04 20:02:56 +00:00
Martin Mares
1c1da87b27
Receive-only IPv6 BGP.
2000-05-04 09:03:31 +00:00
Martin Mares
85368cd4b7
Full protocol tracing.
2000-05-02 16:07:41 +00:00
Martin Mares
f94557dec5
Some more fixes for attributeless UPDATEs.
2000-04-27 22:40:19 +00:00
Martin Mares
8573314326
Avoid printing of error messages on Cease notifications.
2000-04-25 23:08:03 +00:00
Martin Mares
42532f0846
Support dynamic reconfiguration.
2000-04-25 21:58:17 +00:00
Martin Mares
efcece2da3
Better reporting of both local and remote errors.
2000-04-25 21:13:25 +00:00
Martin Mares
a47a01083b
Real parsing of BGP OPEN options including capability
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negotiation.
2000-04-25 13:32:17 +00:00
Martin Mares
2a9e064d7b
If no NLRI's are present in an UPDATE message, parse the attributes, but
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don't check presence of mandatory attributes. [draft-09]
2000-04-21 12:25:35 +00:00
Martin Mares
7787ace61a
Synced to draft-ietf-idr-bgp4-09.
2000-04-20 22:54:22 +00:00
Martin Mares
9bc6ab4041
Fixed reporting of unknown options.
2000-04-20 22:34:50 +00:00
Martin Mares
5f532adde2
Temporarily ignore unknown options.
2000-04-19 13:54:35 +00:00
Martin Mares
1ed2fe9609
Send and receive communities.
2000-04-17 10:19:15 +00:00
Martin Mares
f421cfdd80
Sending of update messages works!
2000-04-17 09:37:31 +00:00
Martin Mares
ae8f558499
Implemented outgoing attribute cache.
2000-04-10 12:39:51 +00:00
Martin Mares
f880924990
BGP now handles incoming routes (IPv4 only).
2000-04-01 09:17:33 +00:00
Martin Mares
c00d31befa
Parsing of BGP attributes.
2000-03-31 23:21:37 +00:00
Martin Mares
973399ae2c
Basic analysis of UPDATE packets.
2000-03-30 18:44:23 +00:00
Martin Mares
b552ecc4d7
Connection state machine works.
2000-03-30 17:39:48 +00:00
Martin Mares
3fdbafb6f4
More BGP. This time it connects, but the state machine still isn't complete.
2000-03-30 10:44:20 +00:00
Martin Mares
72a6ef11fe
Construction of BGP packets.
2000-03-21 15:53:50 +00:00
Martin Mares
c01e37416d
Started work on BGP. Wrote main part of the connection handling code.
2000-03-20 21:50:17 +00:00
