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1140 Commits

Author SHA1 Message Date
Ondrej Zajicek
087cecd0e2 Adds some options and documentation related to recursive next hops. 2010-07-13 12:48:23 +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
824de84d48 Do not start with huge OSPF FIBs. 
Most OSPF instances don't need 64k FIB fields. This change halves
resident memory usage on small OSPF networks.
 2010-06-02 22:25:39 +02:00
Ondrej Filip
4461b89791 Minor bug that appears only in debug mode. 2010-06-02 12:11:20 +02:00
Ondrej Zajicek
a34b09349e Disable BGP protocol when cannot open listening socket. 2010-05-31 11:35:29 +02:00
Ondrej Zajicek
9b061f7ea5 Minor fixes. 2010-05-28 11:16:39 +02:00
Ondrej Zajicek
691057f033 Support loopback/dummy addresses. 2010-05-26 16:09:22 +02:00
Ondrej Zajicek
e0a62ad0f8 Fixes a bug in duplicit configured stubnets. 
If there was the same configured stubnet on local and remote
router, the remote route always won regardless of its cost.
 2010-05-26 12:32:30 +02:00
Ondrej Zajicek
52572e94ec Check for OSPF seqnum wraparound and handle it. 2010-05-23 12:34:09 +02:00
Ondrej Zajicek
6d04ef8987 Comment update. 2010-05-21 16:40:09 +02:00
Ondrej Zajicek
c1cefd7bea Do not remove old static route if it is in new config with different gw. 2010-05-16 11:03:59 +02:00
Ondrej Zajicek
7ff5803bec Do not originate summary or external LSA if it already here and not changed. 2010-05-16 10:27:20 +02:00
Ondrej Zajicek
475977242a Handle EPIPE as a common connection close event. 2010-05-14 16:54:39 +02:00
Ondrej Zajicek
ee7408c2be Fixes a bug in LSA flooding. 
LSAs are sometimes prematurely removed from LS retransmission lists.
 2010-05-07 15:54:27 +02:00
Ondrej Zajicek
54818e9beb A minor bugfix in OSPF ext-LSA processing. 2010-05-03 00:10:48 +02:00
Ondrej Zajicek
506fa1a73e Merge several fixes suggested by Joakim Tjernlund. 2010-05-02 22:41:40 +02:00
Ondrej Zajicek
6384c7d7aa OSPF: most of summary LSA orig./flush logic rewritten. 
Fixes many bugs in the old code and makes it much cleaner.
 2010-05-02 19:58:34 +02:00
Ondrej Zajicek
ba32170657 Better support for /31 networks. 2010-04-28 00:39:57 +02:00
Ondrej Zajicek
48b0814ace A fix in OSPFv3 next_hop calculation. 2010-04-27 18:29:01 +02:00
Ondrej Zajicek
9d1ee13887 Neighbors on OSPF broadcast networks should be identified by IP address, not RID. 
Allows simple support for multiple interfaces to the same network.
 2010-04-26 19:08:57 +02:00
Ondrej Zajicek
4e5fb4b60c Skip LSA host<->network endianity conversions on big endians. 2010-04-25 20:12:34 +02:00
Ondrej Zajicek
0ea8fb4abe Fixes and enhancements in 'show ospf state' command. 
Now it shows a distance, option to change showing reachable/all network
nodes and better handling of AS-external LSAs in multiple areas. The
command 'show ospf topology' was changed to not show stubnets in both
OSPFv2 and OSPFv3 (previously it displayed stubnets in OSPFv2).
 2010-04-24 15:18:21 +02:00
Ondrej Zajicek
3b89a2327b Fixes several problems in OSPF vlink implementation. 2010-04-21 21:50:38 +02:00
Ondrej Zajicek
6e80676096 Fixes next hop calculation on NBMA and parallel PTP links. 2010-04-11 12:22:47 +02:00
Ondrej Zajicek
7969ea3b41 Fixes a bug in OSPF on NBMA interfaces. 
A very tricky bug. OSPF on NBMA interfaces probably never really worked.
When a packet was sent to multiple destinations, the checksum was
calculated multiple times from a packet with already filled checksum
field (from previous calculation). Therefore, many packets were sent
with an invalid checksum.
 2010-04-11 10:19:54 +02:00
Ondrej Zajicek
6b5a8649a4 Do not export empty community list attribute in BGP. 2010-04-08 17:56:56 +02:00
Ondrej Zajicek
b8113a5e92 Implements BGP 'show protocols' info details. 2010-04-07 00:19:23 +02:00
Ondrej Zajicek
e60d55becd Fixes OSPFv3 route generation for local stub networks. 2010-04-02 19:03:18 +02:00
Ondrej Zajicek
e7b09e4ab9 Use SO_BINDTODEVICE also in Linux/IPv6. 2010-04-02 16:11:46 +02:00
Ondrej Zajicek
bed417288e Minor fixes to previous patches. 2010-04-02 11:31:20 +02:00
Ondrej Zajicek
126683feed Filter language updates; new route attributes and datatype. 
- Adds bgp_originator_id and bgp_cluster_list route attributes.
 - Adds dotted quad filter datatype (for router IDs, used by
   bgp_originator_id and ospf_router_id route attributes).
 - Fixes pair ~ pair set matching.
 - Documentation updates.
 2010-03-29 19:29:03 +02:00
Ondrej Zajicek
48cff379a7 Added some comments. 2010-03-26 16:21:29 +01:00
Ondrej Zajicek
af157fa3db Disable multiple OSPF pseudointerfaces on BSD. 2010-03-26 14:48:01 +01:00
Ondrej Zajicek
885b3d6127 Fixes LLS compatibility. 2010-03-22 14:00:47 +01:00
Ondrej Zajicek
0aad2b9292 Temporary OSPF commit - sockets. 2010-03-14 16:36:59 +01:00
Ondrej Zajicek
54305181f6 Merge branch 'new' into socket2 2010-03-11 18:55:59 +01:00
Ondrej Zajicek
e7b76b9760 Temoporary OSPF commit - socket changes. 2010-03-11 18:07:24 +01:00
Ondrej Zajicek
53434e44a9 Better flushing of interfaces. 
When device protocol goes down, interfaces should be flushed
asynchronously (in the same way like routes from protocols are flushed),
when protocol goes to DOWN/HUNGRY.

This fixes the problem with static routes staying in kernel routing
table after BIRD shutdown.
 2010-02-27 16:00:07 +01:00
Ondrej Zajicek
3075824dbd Comparing cluster list length should be later in bgp_rte_better(). 2010-02-26 14:09:24 +01:00
Ondrej Zajicek
ff2857b03d Many changes in (mainly) kernel syncers. 
- BSD kernel syncer is now self-conscious and can learn alien routes
- important bugfix in BSD kernel syncer (crash after protocol restart)
- many minor changes and bugfixes in kernel syncers and neighbor cache
- direct protocol does not generate host and link local routes
- min_scope check is removed, all routes have SCOPE_UNIVERSE by default
- also fixes some remaining compiler warnings
 2010-02-26 10:55:58 +01:00
Ondrej Zajicek
e81b440f68 Fix configure to enable warnings and fix most of them. 2010-02-21 14:34:53 +01:00
Ondrej Filip
89534cdae5 'rr client id' is not expression but ID (like router id). 2010-02-20 21:14:02 +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
9db74169be Fixes protocol statistics for pipes. 2010-02-13 10:44:46 +01:00
Ondrej Zajicek
c83876265e Fixes a tricky bug in the pipe protocol. 
When uncofiguring the pipe and the peer table, the peer table was
unlocked when pipe protocol state changed to down/flushing and not to
down/hungry. This leads to the removal of the peer table before
the routes from the pipe were flushed.

The fix leads to adding some pipe-specific hacks to the nest,
but this seems inevitable.
 2010-02-11 22:27:06 +01:00
Ondrej Zajicek
a2ea1bac60 Moves errno.h include. 2010-02-11 21:19:20 +01:00
Ondrej Zajicek
2af25a971a Fixes a crash caused by missing error hook on BGP listening socket. 
Error happened when too many BGP connections arrived in one moment
(ECONNABORTED).
 2010-02-11 11:12:58 +01:00
Ondrej Zajicek
353729f513 Temporary OSPF commit - socket changes. 2010-02-11 10:23:35 +01:00
Ondrej Zajicek
c27b2449d1 Shows source (Router ID) for OSPF routes and adds such attribute. 
A sad thing is that we does not have a 'router_id' filter type,
so it must be given as decimal number in filters.
 2010-02-08 16:01:03 +01:00
Ondrej Zajicek
aa80826e4a Unnumbered OSPF interfaces should be always in the point-to-point mode. 2010-02-07 09:49:34 +01:00
Ondrej Zajicek
44f26560ec Workaround for some broken BGP implementations that skip initial KEEPALIVE. 2010-02-02 10:14:21 +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
a306208582 Comment update. 2010-01-13 14:53:33 +01:00
Ondrej Zajicek
99f5fc14cd A partial vlink fix. 2010-01-08 22:19:41 +01:00
Ondrej Zajicek
fc33143f02 A fix for broken multi-area OSPF 2010-01-08 17:22:51 +01:00
Ondrej Filip
6901fd0685 More information about vlinks. 2010-01-07 23:42:11 +01:00
Ondrej Filip
18722dc98c Bugfix in DBG call. 2010-01-07 23:03:19 +01:00
Ondrej Filip
3127b81755 Be a little bit more verbose on virtual links. 2010-01-07 22:54:39 +01:00
Ondrej Zajicek
cf0858c217 A fix of a previous fix. 2010-01-07 22:43:06 +01:00
Ondrej Zajicek
ba39197c11 Fixes vlinks for OSPFv2. 2010-01-07 22:22:10 +01:00
Ondrej Zajicek
29bfbae793 Debugging change leaked to repository. 2010-01-07 16:24:36 +01:00
Ondrej Zajicek
3034b384dd A minor fix in OSPF. 2010-01-07 11:46:11 +01:00
Ondrej Zajicek
cf31112f0d Implements MRTdump feature. 2010-01-03 12:17:52 +01:00
Ondrej Zajicek
610bb3cff0 Show command cleanups. 2009-12-22 10:49:39 +01:00
Ondrej Zajicek
c4ae53858b Change default mode of pipes to transparent. 
Opaque pipes are obsolete and should disappear in the future.
 2009-12-21 11:53:58 +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
ba9a122142 Merge branch 'ospf3' into new 2009-12-20 22:57:44 +01:00
Ondrej Zajicek
c4199e3031 Merge branch 'dev' into ospf3 2009-12-20 22:56:09 +01:00
Ondrej Zajicek
ea7ada3809 Fixes a new bug in the pipe protocol soft reconfiguration. 
Also updates route reload for pipes.
 2009-12-20 14:59:12 +01:00
Ondrej Zajicek
1a5178587f Fixes unnecessary pipe restart during configure. 2009-12-20 12:13:15 +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
f75747073e Implements route reload for OSPF. 2009-12-14 21:17:15 +01:00
Ondrej Zajicek
63542845df Merge branch 'dev' into ospf3 
Conflicts:

	proto/ospf/lsreq.c
	proto/ospf/lsupd.c
	proto/ospf/rt.c
 2009-12-14 20:37:32 +01:00
Ondrej Zajicek
34a877ccac Minor updates. 2009-12-14 17:29:33 +01:00
Ondrej Zajicek
28008482a9 Minor fixes in OSPF. 2009-12-12 01:35:51 +01:00
Ondrej Zajicek
8a70a13e7e Implements protocol-specific Router ID for OSPF. 
And fixes one minor bug.
 2009-12-11 11:06:51 +01:00
Ondrej Zajicek
be2d38b7e9 Temporary OSPFv3 commit. 2009-12-11 00:31:56 +01:00
Ondrej Zajicek
9807690b41 Fixes link-back check. 2009-12-06 22:05:50 +01:00
Ondrej Zajicek
b76aeb8234 Fixes next hop handling. 2009-12-04 22:20:13 +01:00
Ondrej Zajicek
9895502392 Fixes OSPFv2 build. 2009-12-03 23:20:02 +01:00
Ondrej Zajicek
bb3c7c6d22 Fixes some log messages. 2009-12-03 18:56:39 +01:00
Ondrej Zajicek
69fbf9a251 Minor fix in LSA update. 2009-12-03 18:25:14 +01:00
Ondrej Zajicek
11787b8473 Fixes some problems in pipes. 
For transparent pipes, loop detection works correctly now.
Pipes are now more symmetric - in both directions filtering
is done in do_rte_announce().
 2009-12-02 17:26:16 +01:00
Ondrej Zajicek
4b84bd4554 Fixes some crashes in OSPFv2. 2009-11-29 10:29:33 +01:00
Ondrej Zajicek
e4a810b0ce Temporary commit. 2009-11-29 10:09:25 +01:00
Ondrej Zajicek
bf47fe4b2e Implements BGP route refresh. 2009-11-26 20:47:59 +01:00
Ondrej Zajicek
3f9b7bfe9f Implements option that controls IPv6 BGP next hops when lladdr is missing. 2009-11-18 20:32:36 +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
cbf8b08d62 Temporary OSPFv3 devel commit 2009-11-17 10:31:33 +01:00
Ondrej Zajicek
4ac7c8341c Use IPv6 checksums in OSPFv3. 2009-11-09 23:22:53 +01:00
Ondrej Zajicek
3f22fa9e74 Merge branch 'dev' into ospf3 2009-11-09 22:54:39 +01:00
Ondrej Zajicek
a6bc04d591 Implements better checks on incoming packets and LSAs in OSPF. 2009-10-29 23:57:42 +01:00
Ondrej Zajicek
9d4d38d1a5 Fixes some problems related to link-local routes in KRT interface. 2009-10-28 22:39:24 +01:00
Ondrej Zajicek
9727681a38 Implements proper handling of summary/external LSA IDs. 2009-10-25 20:02:28 +01:00
Ondrej Zajicek
988992446d Implement command to show LSA db. 2009-10-15 11:57:25 +02:00
Ondrej Zajicek
b66abe8ef9 Reimplements 'show ospf state' for OSPFv3 and fixes some bugs. 2009-10-15 00:28:04 +02:00
Ondrej Zajicek
4cdd078453 Implements protocol-specific router id and updates documentation. 2009-10-12 23:31:42 +02:00
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
ea89da381f Workaround for stupid callback scheduler. 
There is no reak callback scheduler and previous behavior causes
bad things during hard congestion (like BGP hold timeouts).

Smart callback scheduler is still missing, but main loop was
changed such that it first processes all tx callbacks (which
are fast enough) (but max 4* per socket) + rx callbacks for CLI,
and in the second phase it processes one rx callback per
socket up to four sockets (as rx callback can be slow when
there are too many protocols, because route redistribution
is done synchronously inside rx callback). If there is event
callback ready, second phase is skipped in 90% of iterations
(to speed up CLI during congestion).
 2009-10-11 18:56:16 +02:00
Ondrej Zajicek
d82fc18d75 Implement proper LSA ID generation. 2009-10-07 21:10:29 +01:00
Ondrej Zajicek
a5bf5f781c Show bad peer AS number in log in decimal. 2009-09-24 23:14:44 +02:00
Ondrej Zajicek
be6e39ebbf Passive option. 2009-09-24 22:12:11 +02:00
Ondrej Zajicek
54fe0d9230 Fixes setting of IP addresses to route attributes (NEXT_HOP). 2009-09-18 13:59:04 +02:00
Ondrej Zajicek
46eb80d5d5 Fixes headers for uintptr_t (and build on NetBSD). 2009-09-17 17:52:36 +02:00
Ondrej Zajicek
0781e9c62c Fixes preference in transparent pipes. 2009-09-17 12:40:02 +02:00
Ondrej Zajicek
9f0ba7b1c7 Implements proper RID handling in OSPFv3. 2009-09-17 12:18:03 +02:00
Ondrej Zajicek
c15e569065 Make endianity swapping simpler. 2009-09-08 17:06:47 +02:00
Ondrej Zajicek
be86240662 Temporary OSPFv3 development commit. 
Finally, it is working.
 2009-09-08 13:45:02 +02:00
Ondrej Zajicek
f9c799a00e Temporary OSPFv3 development commit (changing multicast support). 2009-09-04 11:06:51 +02:00
Ondrej Zajicek
d2ceaf4ec8 Temporary OSPFv3 development commit 2009-08-28 13:45:43 +02:00
Ondrej Zajicek
05198c12f4 Some cleanups. 2009-08-27 19:01:04 +02:00
Ondrej Zajicek
061ab802a6 Temporary OSPFv3 development commit 2009-08-27 18:25:46 +02:00
Ondrej Zajicek
949bd34e81 Fixes bug related to AS2->AS4 conversion. 2009-08-25 19:01:37 +02:00
Ondrej Zajicek
b49e6f5a65 Temporary OSPFv3 development commit 2009-08-25 16:42:14 +02:00
Ondrej Zajicek
c3226991a0 Temporary OSPFv3 development commit 2009-08-21 09:27:52 +02:00
Ondrej Filip
87d7fd9725 Bugfix - each protocol can be compiled separately. 2009-08-16 22:36:41 +02:00
Ondrej Zajicek
b92c8e3019 Merge branch 'master' into dev 2009-08-10 10:16:00 +02:00
Ondrej Filip
0d328932be Symbols PASSWORDS and BROADCAST not declared for OSPF 2009-07-30 18:39:41 +02:00
Ondrej Zajicek
3aab39f589 Use %R in OSPF when appropriate. 2009-07-23 16:51:28 +02:00
Ondrej Zajicek
70670bf317 Fixed bug related to reconfiguration of BGP with MD5 passwords. 2009-07-09 15:42:39 +02:00
Ondrej Zajicek
2389c46fe3 Another pile of ipa_from_u32() calls. 2009-07-05 21:18:55 +02:00
Ondrej Zajicek
b082c1bfcc Fixes OSPF on big-endians. 
Hmm, #ifdef is not very typo-safe.
 2009-07-05 20:26:51 +02:00
Ondrej Zajicek
f9bdcad469 Fixes type mismatch in OSPF printf statements. 
Mixing ip_addr and u32 does bad things on Ultrasparc.
Although both have the same size. Fascinating.
It was not catched by compiler because of varargs.
 2009-07-05 19:01:54 +02:00
Ondrej Zajicek
d72cdff411 Replace 'bind' option with 'listen' option. 
To be consistent with other daemons.
 2009-06-23 11:08:30 +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
789772ed45 Implements option that changes BGP listening socket parametres. 2009-06-18 19:20:07 +02:00
Ondrej Zajicek
1b3b3e34ec Minor bugfixes. 2009-06-18 14:32:44 +02:00
Ondrej Zajicek
3867520281 Implements an option that allows to change a set of stub networks. 2009-06-11 17:25:38 +02:00
Ondrej Zajicek
3d15dcdb1c Changes OSPF to generate stub networks for non-primary addresses. 
Also does some reorganization in RT LSA announcement.
 2009-06-10 23:45:08 +02:00
Ondrej Zajicek
b99d378698 Minor BGP changes related to error wait time. 2009-06-07 00:38:38 +02:00
Ondrej Zajicek
7238262671 Fixes bug related to startup delay change. 2009-06-06 18:56:33 +02:00
Ondrej Zajicek
dd91e46765 Differentiate between error delay and connect/reconnect delay. 
The difference is here to reject incoming connections in the
first case.
 2009-06-06 18:16:22 +02:00
Ondrej Zajicek
72b28a041d Implements import route limits. 2009-06-04 13:31:09 +02:00
Ondrej Zajicek
f98e291579 The pipe cleanup. 2009-06-01 14:07:13 +02:00
Ondrej Zajicek
2d45e09f58 Adds opaque/transparent pipe mode selection. 2009-06-01 12:10:10 +02:00
Ondrej Zajicek
23ac9e9a9e Changes pipes to transfer all routes between routing table, not just optimal routes. 2009-05-31 15:24:27 +02:00
Ondrej Zajicek
f571473ef3 Hello packets on PTP networks should have zero netmask. 
This also ensures that misconfigured routers (one side
ptp and one side broadcast) do not make adjacency.
 2009-05-24 17:55:33 +02:00
Ondrej Zajicek
8cc598a520 Ignore Hello packets from different IP network (than primary). 2009-05-24 17:51:27 +02:00
Ondrej Zajicek
20e94fb85b A change in OSPF and RIP interface patterns. 
Allows to add more interface patterns to one common 'options'
section like:

interface "eth3", "eth4" { options common to eth3 and eth4 };

Also removes undocumented and unnecessary ability to specify
more interface patterns with different 'options' sections:

interface "eth3" { options ... }, "eth4" { options ... };
 2009-05-06 22:02:45 +02:00
Ondrej Zajicek
10ab65a8c9 Fixes one recently introduced IPv6 BGP compatibility problem. 2009-05-06 15:18:52 +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
Ondrej Zajicek
ad440a570b Fixes handling of 'next hop self' and 'source address' configuration 
options.
 2009-04-28 18:11:56 +02:00
Ondrej Zajicek
64cf11f544 Fixes BGPv6 bug - missing endianity conversion. 
Also removes code skipping SNPAs
(obsoleted by newer RFCs, should be ignored).
 2009-04-23 23:15:07 +02:00
Ondrej Zajicek
f307842ad8 Fixes BGPv6 bug - mandatory attributes weren't validated; 2009-04-23 14:44:02 +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
b9539e78d8 Fixes bug in BGPv6 causing crash by checking missing attributes. 2009-04-23 12:36:24 +02:00
Ondrej Zajicek
024c310b53 Fixes broken cryptographic authentication in OSPF 
Cryptographic authentication in OSPF is defective by
design - there might be several packets independently
sent to the network (for example HELLO, LSUPD and LSACK)
where they might be reordered and that causes crypt.
sequence number error.

That can be workarounded by not incresing sequence number
too often. Now we update it only when last packet was sent
before at least one second. This can constitute a risk of
replay attacks, but RFC supposes something similar (like time
in seconds used as CSN).
 2009-04-08 20:15:01 +02:00
Ondrej Zajicek
b722fe7ebd Fixes bug in OSPF packet retransmission. 
If a DBDES packet from a master to a slave is lost, then the old code
does not retransmit it and instead send a next one with the same
sequence number. That leads to silent desynchronization of LSA
databases.
 2009-04-06 16:53:06 +02:00
Ondrej Zajicek
8298d780be Better OSPF packet tracing log messages. 
Replaces old OSPF packet tracing messages with
uniform messages with packet dumps.
 2009-04-06 16:17:47 +02:00
Ondrej Zajicek
48d79d521c Better handling of AS4 optional attribute errors 
AS4 optional attribute errors were handled by session
drop (according to BGP RFC). This patch implements
error handling according to new BGP AS4 draft (*)
 - ignoring invalid AS4 optional attributes.

(*) http://www.ietf.org/internet-drafts/draft-chen-rfc4893bis-02.txt
 2009-03-18 20:30:21 +01:00
Ondrej Zajicek
e8ba557c7f Update capability handshake options 
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 
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
a9dc5e1ef2 Fixes another bug in packet retransmissions. 
When slave was in full state, it didn't retransmit
lost packets. That leads to OSPF connection locked
in states loading-full.
 2009-02-25 16:28:21 +01:00
Ondrej Zajicek
cd17c651a6 Add format for BGP_AGGREGATOR attribute 2009-02-21 17:47:56 +01:00
Ondrej Zajicek
d901db3fb7 Fixes bug in packet retransmissions. 
When packet was lost during dbdes exchange, slave did not retransmit
it. That leads to OSPF connection locked in states exchange-exstart.
 2009-02-12 19:46:51 +01:00
Ondrej Zajicek
e3c460bc90 Fixes some past config grammar update that caused password related regression. 2009-01-16 12:08:07 +01:00
Ondrej Zajicek
3b108f18e8 One null-pointer dereference bugfix hidden in whitespace changes 2009-01-16 10:58:52 +01:00
Ondrej Zajicek
0dd7ccc766 Fix typo. 2009-01-13 19:25:27 +01:00
Ondrej Zajicek
0844b65d13 Fix OSPF protocol error recovery behavior. 
When OSPF neighbor state drops down to EXSTART,
clear LSA request and retransmit lists, as specified
by RFC. I hope that this will prevent oscillations
between EXSTART and LOADING states, which sometimes
happened.

It also contains related fix from Yury Shevchuk that
properly resets DB summary list iterator.
 2009-01-13 19:15:49 +01:00
Ondrej Zajicek
f15cb99c79 Add check detecting packet overwrite in TX buffer. 2009-01-12 23:42:51 +01:00
Ondrej Zajicek
23d6702952 Some fixes and update of OSPF debug messages 2009-01-11 12:14:27 +01:00
Ondrej Zajicek
0e9617e400 Move check for NULL before usage of variable. 2009-01-11 10:51:54 +01:00
Ondrej Zajicek
f20907adf6 Fixes bug in OSPF 
Checksum was not recalculated when LSA was changed and
packets with bad checksum were sent.
 2009-01-11 10:47:41 +01:00
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
3f670371cf OSPF routes appeared with random value of ospf_tag attribute. 
This patch fixes it.
 2008-11-14 21:13:56 +01:00
Ondrej Zajicek
aebe06b40c Proper format functions for ORIGINATOR_ID, CLUSTER_LIST 2008-11-08 23:33:22 +01:00
Ondrej Zajicek
b21f68b4cd Fix bugs in OSPF MD5 authentication. First bug is that default 
values for MD5 password ID changed during reconfigure, Second
bug is that BIRD chooses password in first-fit manner, but RFC
says that it should use the one with the latest generate-from.

It also modifies the syntax for multiple passwords.
Now it is possible to just add more 'password' statements
to the interface section and it is not needed to use
'passwords' section. Old syntax can be used too.
 2008-11-08 17:24:23 +01:00
Ondrej Zajicek
fd91ae3325 Fix problem with local time changes. 2008-11-05 22:36:49 +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
f0ad56f441 Fixes some sloppiness of commit a3b70dc499. 2008-10-28 16:10:42 +01:00
Ondrej Zajicek
a98fbf0f12 Merge branch 'dev' into out 2008-10-27 00:20:22 +01:00
Ondrej Zajicek
a3b70dc499 Two new informative CLI commands for OSPF. 
Two new CLI commands for OSPF giving nice informative (and still machine
parsable) representation of OSPF network graph (based on datas from the
LSA database).

The first command (show ospf topology) shows routers, networks and stub
networks, The second command (show ospf state) shows also external
routes and area-external networks and routers propagated by given area
boundary router.
 2008-10-27 00:03:30 +01:00
Ondrej Zajicek
52586ccdf1 Missing newline. 2008-10-26 23:53:05 +01:00
Ondrej Zajicek
a97122a3ca Bugfix in LSA origination for PTP OSPF links. 
The code generating LSAs for PTP OSPF links is buggy. The old behavior
is that it generates PTP link if there is a full/ptp neighbor and stub
link if there isn't. According to RFC 2328, the correct behavior is to
generate stub link in both cases (in the first case together with PTP
link).

And because of buggy detection of unnumbered networks, for numbered
networks the code creates stub links with 0.0.0.0/32.
 2008-10-26 23:43:13 +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
226cb2bc3f Expand ospf dump information. 2008-08-25 12:51:06 +00:00
Ondrej Filip
73e53eb555 Endianity problem in debug message fix. 2008-08-25 12:00:55 +00:00
Ondrej Filip
85ae398a61 The source address configuration in BGP added. 2008-08-24 23:20:46 +00:00
Ondrej Filip
f39e3bfdbf Small bugfix in tracing. 2005-03-15 23:42:41 +00:00
Ondrej Filip
94c42054ea Added new parametr 'rx buffer <num>'. BIRD is able to receive 
very large packets (if configured).
 2005-03-15 22:06:36 +00:00
Ondrej Filip
e6ea2e375e Maximal packet size in virtual links is 576. 2005-03-15 20:51:33 +00:00
Ondrej Filip
e300066d5f OSPF can accept larger packets than MTU. 2005-03-14 11:24:56 +00:00
Ondrej Filip
427e59939b Look for large packets. 2005-03-14 11:07:10 +00:00
Ondrej Filip
a2d5b405d4 Bugfix in external routes calculation. 2005-03-14 10:59:52 +00:00
Ondrej Filip
39fc85b4c6 Unused code deleted. 2005-02-20 19:03:34 +00:00
Ondrej Filip
63ca37f313 Cleanup - all unused variables deleted. 2005-02-20 18:56:06 +00:00
Ondrej Filip
52d61a8498 Intelligent reconfiguration should work again. 2005-02-20 16:54:09 +00:00
Ondrej Filip
dafaef9ba9 Originate default route into stub areas. 2005-02-20 16:53:06 +00:00
Ondrej Filip
d8c7d9e884 Since now I can also use 'dead interval', not just 'dead counter'. 2005-02-20 04:27:56 +00:00
Ondrej Filip
7de7470a2a Bugfix - count courrectly next hop on single hop virtual link. 2005-02-20 03:37:47 +00:00
Ondrej Filip
6eb4b73fe8 Time of neighbor's dead was not shown correctly. 2005-02-20 03:30:44 +00:00
Ondrej Filip
5506c82ce6 Bugfix in previous bugfix. 2005-02-18 19:36:32 +00:00
Ondrej Filip
60e04f0413 Minor bugfix: Summary LSA for aggregated area was always propagated with 
metric = 1. Now it's metric of most distant component.
 2005-02-18 18:51:42 +00:00
Ondrej Filip
27a1e3ac35 Minor bugfixes in routing table calsulation. 2005-02-15 16:17:42 +00:00
Ondrej Filip
8ffc753441 Minor changes to keep gcc happy. 2005-02-15 06:32:31 +00:00
Ondrej Filip
2eef9e887a Be more verbose in log. 2005-02-14 21:34:46 +00:00
Ondrej Filip
b181f444a6 Small changes to reduce number of warnings. 2005-02-14 11:54:16 +00:00
Ondrej Filip
5d3f555234 Many bugfixes in routing table calculation and summary LSA origination. 2005-02-13 23:36:31 +00:00
Ondrej Filip
89ba9a1806 Bugfix in inter-area route calculation and summary LSA origination. 
Bugfix of some debugging commands.
 2005-02-12 22:22:18 +00:00
Ondrej Filip
bae7c43ff3 Bugfix in password acceptance 2005-02-12 22:19:46 +00:00
Ondrej Filip
9912fa51c8 Bugfix - cost of interface can be larger than 0xffff 2005-02-12 22:18:48 +00:00
Ondrej Filip
4991756863 Dont check netmask field on PTP links. 2004-09-15 19:33:01 +00:00
Ondrej Filip
c6dce04bed Bugfix. 2004-09-08 16:04:02 +00:00
Ondrej Filip
7715f9d9ed Bugfix in config.y 2004-08-10 17:47:32 +00:00
Ondrej Filip
56e2a4b776 Bugfix in OSPF - BIRD sometimes failed during rt calculation with VLINKs. 2004-08-05 18:06:30 +00:00
Ondrej Filip
8d94a524b6 Added handling of STUB bool. 2004-07-16 08:27:11 +00:00
Ondrej Filip
002ecc0638 Bugfix - bird needed double ';' after rfc1583compat. 2004-07-16 07:22:43 +00:00
Ondrej Filip
004cf4fc0c Minor bugfix to compile bird in IPv6. 2004-07-15 17:28:13 +00:00
Ondrej Filip
b37bb5ce03 Minor bugfix - add interface routes. 2004-07-15 16:48:12 +00:00
Ondrej Filip
28e8d862b7 Minor bugfix in calculation of external routes. 2004-07-15 16:42:06 +00:00
Ondrej Filip
86c84d76b7 Huge OSPF database redesign. Since now, all LSAs of all areas 
are in single database. This avoids duplication of external LSAs and
fixes bug in external LSA distribution.
 2004-07-15 16:37:52 +00:00
Ondrej Filip
3b16080c97 Multiple OSPF areas can be attached. 
Origination of summary LSA works.
Routing table calculation works.
Virtual links works.

Well, I hope, OSPF is fully compatible with RFC2328!!!!
 2004-07-14 21:46:20 +00:00
Ondrej Filip
a417ad13a1 Send hello just after interface is up. 
This makes the adjacency forming faster.
Minor code clean up.
 2004-07-13 23:42:14 +00:00
Ondrej Filip
897999c22a Send hello as soon as possible after the interface is up. 
This helps to faster establish the adjacency.
 2004-07-13 23:31:37 +00:00
Ondrej Filip
490767adfc Add more reasonable options to LSAs. (But it seems, that it's ignored.) 2004-07-13 22:10:14 +00:00
Ondrej Filip
fe1489e6c1 Bugfix: Router was unable to advertise AS external routes. 2004-07-13 22:04:57 +00:00
Ondrej Filip
62eee82321 Default tick = 1. The today's CPU is fast enough. 2004-07-13 21:27:33 +00:00
Ondrej Filip
35fdf4b6a2 Don't inform us about every ospf_age() 2004-07-13 21:22:32 +00:00
Ondrej Filip
16c2d48d8f Bugfix - RIP now updates routes with worse metric. 2004-07-13 20:53:56 +00:00
Ondrej Filip
bc956fcab6 MD5 authentication in OSPF works. :-) 2004-07-13 14:46:14 +00:00
Ondrej Filip
32d3228d86 Bugfix in simple authentification. 2004-07-13 13:52:54 +00:00
Ondrej Filip
12dd8dc877 Bugfix - nasty bug in router LSA origination - Router did not describe all interfaces. 2004-07-13 12:21:24 +00:00
Ondrej Filip
621ccdfe5a Bugfix - options bits were not included in LSAs 
Bugfix - E bit was not unset on stub areas.
 2004-07-13 11:58:50 +00:00
Ondrej Filip
9baece57d3 Syntax bugfix. 2004-07-08 16:56:49 +00:00
Ondrej Filip
69b27ed6fd Length calculation bugfix. 2004-07-01 15:01:44 +00:00
Ondrej Filip
bc4ea680ce Hello reading bugfix. 2004-07-01 15:01:04 +00:00
Ondrej Filip
ea357b8b6d Update of the documentation. (passwords and md5). 
Option for md5 auth in config.
 2004-06-26 22:52:39 +00:00
Ondrej Filip
3e2bd0f17a Md5 authentification added (unsested). 
Packet receiving clean up.
 2004-06-26 20:15:34 +00:00
Ondrej Filip
5236fb03af Password management redesigned (untested). 2004-06-26 20:11:14 +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
Ondrej Filip
5ed68e46d7 Small typo changes. 2004-06-23 23:59:48 +00:00