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Commit Graph

191 Commits

Author SHA1 Message Date
Ondrej Zajicek
48e5f32db6 Many changes in I/O and OSPF sockets and packet handling.
I/O:
 - BSD: specify src addr on IP sockets by IP_HDRINCL
 - BSD: specify src addr on UDP sockets by IP_SENDSRCADDR
 - Linux: specify src addr on IP/UDP sockets by IP_PKTINFO
 - IPv6: specify src addr on IP/UDP sockets by IPV6_PKTINFO
 - Alternative SKF_BIND flag for binding to IP address
 - Allows IP/UDP sockets without tx_hook, on these
   sockets a packet is discarded when TX queue is full
 - Use consistently SOL_ for socket layer values.

OSPF:
 - Packet src addr is always explicitly set
 - Support for secondary addresses in BSD
 - Dynamic RX/TX buffers
 - Fixes some minor buffer overruns
 - Interface option 'tx length'
 - Names for vlink pseudoifaces (vlinkX)
 - Vlinks use separate socket for TX
 - Vlinks do not use fixed associated iface
 - Fixes TTL for direct unicast packets
 - Fixes DONTROUTE for OSPF sockets
 - Use ifa->ifname instead of ifa->iface->name
2014-02-06 17:46:01 +01:00
Ondrej Zajicek
6a8d3f1c1f BFD work in progress.
Now it compiles and mostly works.
2013-09-16 23:57:40 +02:00
Ondrej Zajicek
f623ab9875 Implements OSPF stub router option (RFC 3137).
Also fixes OSPFv3 routing table calculcation w.r.t.
errata 2078 to RFC 5340.
2013-06-11 12:12:11 +02:00
Ondrej Zajicek
6cadbf325b Change unnamed ptp link description on OSPFv2.
Although it is a slight deviation from the standard, it has no ill
consequences for OSPFv2 and the change fixes a compatibility issue
with some broken implementations.
2012-11-15 14:08:20 +01:00
Ondrej Zajicek
a55a90faec Peer address of stub iface should be announced in OSPF Router LSA. 2012-11-10 14:54:35 +01:00
Ondrej Zajicek
dd4da6f640 Fixes another bug in OSPFv3 vlinks. 2012-10-31 17:14:35 +01:00
Ondrej Zajicek
e4404cef0b Fixes several bugs related to OSPFv3 vlinks. 2012-10-29 20:29:31 +01:00
Ondrej Zajicek
bbcfd5a048 Fixes default route in OSPF multiple area setting. 2012-07-26 13:59:50 +02:00
Ondrej Zajicek
d494df63ac Some minor fixes. 2012-04-27 00:04:51 +02:00
Ondrej Zajicek
74add5df17 Fixes seqnum generation.
Thanks Mohammad Amin Shoaie for notification.
2011-10-27 14:52:28 +02:00
Ondrej Zajicek
35c875f0d1 Fixes some error messages and the NSSA gw lookup.
Thanks to Alexander V. Chernikov for the patch.
2011-10-01 09:57:49 +02:00
Ondrej Zajicek
2918e61046 Fixes for OSPF NSSA handling. 2011-09-03 21:31:26 +02:00
Ondrej Zajicek
ed317862c2 OSPF NSSA support, inter-area LSA translation. 2011-08-08 01:45:31 +02:00
Ondrej Zajicek
4160a9dd94 OSPF NSSA translator election. 2011-07-22 20:00:24 +02:00
Ondrej Zajicek
41b612c31b OSPF NSSA support, part one. 2011-07-20 23:48:06 +02:00
Ondrej Zajicek
52a43ae3b7 Minor changes in addresses.
Mainly changes IA_UNNUMBERED to IA_PEER and adds IA_HOST. Also do not
show broadcast addr in show interfaces. Nobody cares for that.
2011-03-28 22:46:18 +02:00
Ondrej Zajicek
8e48831a97 Vastly improved OSPF reconfiguration.
Now it can handle a change in iface pattern structure.
It can add, remove and reconfigure interfaces, vlinks and areas.
2011-03-17 15:53:36 +01:00
Ondrej Zajicek
e7b4948cbd A simplification of the next-hop calculation.
Thanks to Joakim Tjernlund for the idea.
2010-12-28 01:43:07 +01:00
Ondrej Zajicek
919f5411c4 Implements Point-to-MultiPoint interface type for OSPF. 2010-12-24 18:08:07 +01:00
Ondrej Zajicek
f0160f0e06 Fixes a minor memory wasting. 2010-12-23 10:25:22 +01:00
Ondrej Zajicek
57c574d82a Multipath support for OSPF 2010-12-07 23:35:39 +01:00
Ondrej Zajicek
d9e7e1b13d Adds support for iface link detection to OSPF. 2010-11-13 14:19:23 +01:00
Ondrej Zajicek
5cdf264f93 Fixes a bug related to implicit backbone on ABR. 2010-11-10 16:43:11 +01:00
Ondrej Zajicek
d395fe4855 Fixes bug in OSPF ext-LSA origination. 2010-07-31 11:37:30 +02:00
Ondrej Filip
4461b89791 Minor bug that appears only in debug mode. 2010-06-02 12:11:20 +02:00
Ondrej Zajicek
52572e94ec Check for OSPF seqnum wraparound and handle it. 2010-05-23 12:34:09 +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
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
3b89a2327b Fixes several problems in OSPF vlink implementation. 2010-04-21 21:50:38 +02:00
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
e81b440f68 Fix configure to enable warnings and fix most of them. 2010-02-21 14:34:53 +01:00
Ondrej Zajicek
353729f513 Temporary OSPF commit - socket changes. 2010-02-11 10:23:35 +01:00
Ondrej Zajicek
cf31112f0d Implements MRTdump feature. 2010-01-03 12:17:52 +01:00
Ondrej Zajicek
f2d7da742b Fixes export of routes with link-local gw. 2009-12-15 00:30:07 +01:00
Ondrej Zajicek
34a877ccac Minor updates. 2009-12-14 17:29:33 +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
9895502392 Fixes OSPFv2 build. 2009-12-03 23:20:02 +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
9727681a38 Implements proper handling of summary/external LSA IDs. 2009-10-25 20:02:28 +01:00
Ondrej Zajicek
b66abe8ef9 Reimplements 'show ospf state' for OSPFv3 and fixes some bugs. 2009-10-15 00:28:04 +02:00
Ondrej Zajicek
d82fc18d75 Implement proper LSA ID generation. 2009-10-07 21:10:29 +01:00
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
061ab802a6 Temporary OSPFv3 development commit 2009-08-27 18:25:46 +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 Zajicek
3aab39f589 Use %R in OSPF when appropriate. 2009-07-23 16:51:28 +02:00
Ondrej Zajicek
2389c46fe3 Another pile of ipa_from_u32() calls. 2009-07-05 21:18:55 +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
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
23d6702952 Some fixes and update of OSPF debug messages 2009-01-11 12:14:27 +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
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 Filip
226cb2bc3f Expand ospf dump information. 2008-08-25 12:51:06 +00:00
Ondrej Filip
63ca37f313 Cleanup - all unused variables deleted. 2005-02-20 18:56:06 +00:00
Ondrej Filip
dafaef9ba9 Originate default route into stub areas. 2005-02-20 16:53:06 +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
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
490767adfc Add more reasonable options to LSAs. (But it seems, that it's ignored.) 2004-07-13 22:10:14 +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
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
d5d9693ce9 Deleted unused parameters. 2004-06-06 18:45:08 +00:00
Ondrej Filip
cd09226078 Be sure, that ospf_area is aged before routing table calculation. 2004-06-06 17:03:56 +00:00
Ondrej Filip
933bfdde2a Keep al lSAs invalidated. 2004-06-06 16:14:57 +00:00
Ondrej Filip
b8f17cf192 Small cleanup, indentation and preparation for multiple areas routing table calculation. 2004-06-06 16:00:09 +00:00
Ondrej Filip
b9ed99f738 Cleanup in iface.c 2004-06-06 08:55:33 +00:00
Martin Mares
9831e5916f Staticized lots of local functions. 2004-06-05 09:58:23 +00:00
Martin Mares
1512813e95 ... and a whole bunch of unused parameters and variables in ospf. 2004-06-05 09:28:17 +00:00
Ondrej Filip
6f3203fabf cleanup in lsupd.c, indenting, "struct proto" removed... 2004-06-04 21:05:43 +00:00
Ondrej Filip
035f6acbfe Patch from Andreas Steinmetz <ast@domdv.de> 2004-06-01 13:12:10 +00:00
Martin Mares
bb68ad2fd3 Documented the pxlen parameter. 2004-05-31 22:22:21 +00:00
Martin Mares
0077aab4f9 The code was broken for external /29 to /32 routes. Assuming that you
have one machine publishing a route to 10.1.1.3/32 and another one
publishing a route to 10.1.1.4/32. If the first machine went down the
route to 10.1.1.4/32 was wrongly killed by the old code, leading either
to missing routes or worse to bug()s like "Router parent does not have
next hop" or just segfaults. The patch fixes this but in the long term a
redesign is required here. Note that the patch doesn't worse the
situation, instead it prevents the problems stated. The redesign is
required to handle multiple routes to small subnets properly.

(by Andreas)

Feela, I think that this is at least a good temporary fix, but it's
of course up to you to decide.
2004-05-31 18:16:42 +00:00
Ondrej Filip
baa5dd6ccc Many spelling mistakes fixed.
Thanks you Harry Moyes.
2003-08-23 10:42:41 +00:00
Ondrej Filip
37da55168c Useless trace. 2001-08-21 15:03:42 +00:00
Martin Mares
e43ae6330e Fix %<something>I format strings. 2001-08-19 11:15:24 +00:00
Ondrej Filip
85062e8a60 Bugfix in B-bit setting in router LSA. 2001-08-11 14:40:51 +00:00
Ondrej Filip
78e2c6ccf1 I will not originate the same lsa before MINLSINTERVAL. 2001-08-11 14:01:54 +00:00
Ondrej Filip
fdb1998202 Serious bug in ext lsa origination found. Going for 1.0.4. 2000-09-03 22:18:40 +00:00
Ondrej Filip
5a063efeea Bugfix in ext lsa importing. 2000-08-28 13:51:13 +00:00
Ondrej Filip
8d56febe64 HASH_DEF_ORDER back to 6. 2000-06-08 12:04:57 +00:00
Ondrej Filip
e9ab0b4212 Doc in lsalib.c + related minor changes. 2000-06-07 22:31:47 +00:00
Ondrej Filip
b4af36e0d8 Removed some FIXMEs simply deleting them. 2000-06-07 21:50:16 +00:00
Ondrej Filip
7ab3ff6a28 Doc in neighbor.c and some tiny changes related to. 2000-06-07 21:46:22 +00:00
Ondrej Filip
992705f65a Tracing in topology 2000-06-06 02:27:08 +00:00
Ondrej Filip
51cff78b25 Allocate OSPF areas before interfaces. 2000-06-06 01:46:32 +00:00
Ondrej Filip
3b580a23ad Bugfix in NET LSA flushing.
Configuration now works! :-)
Better "show ospf"
Some minor bugfixes.
2000-06-05 20:57:53 +00:00
Ondrej Filip
fdb0c540a8 PTP link in RTLSA was not announced correctly. 2000-06-05 19:12:22 +00:00
Martin Mares
8441f17925 Unless a filter specifies otherwise, all external routes have type 2
metric 10000.
2000-06-05 18:40:25 +00:00
Ondrej Filip
ac272c0067 Bug in LSA origination. 2000-06-05 05:06:53 +00:00
Ondrej Filip
88048fb3c9 Small patch to better hash type=2 LSAs. 2000-06-05 03:46:19 +00:00
Ondrej Filip
273fd2c164 Many bugfixes (I don't remember all of them):
Added link ID calculation for external routes with same prefix but
	different mask.
Bugfix in NET lsa origination.
Bugfix in NET hashing.
Bugfix in LSA installing.
2000-06-05 02:23:20 +00:00
Ondrej Filip
67cc9135bf Many bugs in ext lsa origination. 2000-06-04 19:20:28 +00:00
Ondrej Filip
528932368a Stuping bug in net LSA origination. Now, I should survive
loss of my only neighbor.
2000-05-31 14:43:42 +00:00