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2009-04-23Fixes bug in BGPv6 causing crash by checking missing attributes.Ondrej Zajicek
2009-04-08Fixes broken cryptographic authentication in OSPFOndrej Zajicek
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).
2009-04-06Fixes bug in OSPF packet retransmission.Ondrej Zajicek
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.
2009-04-06Better OSPF packet tracing log messages.Ondrej Zajicek
Replaces old OSPF packet tracing messages with uniform messages with packet dumps.
2009-03-18Better handling of AS4 optional attribute errorsOndrej Zajicek
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
2009-03-13Update capability handshake optionsOndrej Zajicek
Add 'capabilities' option, change default behavior to advertise ipv4, add some checks and ignore incoming capabilities when capabilities are disabled.
2009-03-05Added Cisco and Quagga capability workaround option.Ondrej Zajicek
2009-02-27Better handling of too long attributesOndrej Zajicek
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.
2009-02-26Rate limit for most abundant log messagesOndrej Zajicek
2009-02-25Fixes another bug in packet retransmissions.Ondrej Zajicek
When slave was in full state, it didn't retransmit lost packets. That leads to OSPF connection locked in states loading-full.
2009-02-21Add format for BGP_AGGREGATOR attributeOndrej Zajicek
2009-02-12Fixes bug in packet retransmissions.Ondrej Zajicek
When packet was lost during dbdes exchange, slave did not retransmit it. That leads to OSPF connection locked in states exchange-exstart.
2009-01-16Fixes some past config grammar update that caused password related regression.Ondrej Zajicek
2009-01-16One null-pointer dereference bugfix hidden in whitespace changesOndrej Zajicek
2009-01-13Fix typo.Ondrej Zajicek
2009-01-13Fix OSPF protocol error recovery behavior.Ondrej Zajicek
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.
2009-01-12Add check detecting packet overwrite in TX buffer.Ondrej Zajicek
2009-01-11Some fixes and update of OSPF debug messagesOndrej Zajicek
2009-01-11Move check for NULL before usage of variable.Ondrej Zajicek
2009-01-11Fixes bug in OSPFOndrej Zajicek
Checksum was not recalculated when LSA was changed and packets with bad checksum were sent.
2008-12-24Adds support for fallback to capabilityless BGP connectOndrej Zajicek
When capability related error is received, next connect will be without capabilities. Also cease error subcodes descriptions (according to [RFC4486]) are added.
2008-12-24Fixes bug related to reconfiguration of BGP.Ondrej Zajicek
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.
2008-12-19Major changes to BGPOndrej Zajicek
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.
2008-11-14OSPF routes appeared with random value of ospf_tag attribute.Ondrej Zajicek
This patch fixes it.
2008-11-08Proper format functions for ORIGINATOR_ID, CLUSTER_LISTOndrej Zajicek
2008-11-08Fix bugs in OSPF MD5 authentication. First bug is that defaultOndrej Zajicek
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.
2008-11-05Fix problem with local time changes.Ondrej Zajicek
2008-11-05Fixes bugs in IPv6 code caused by recent commits.Ondrej Zajicek
2008-11-01Multihop BGP was completely broken, because listening socket has alwaysOndrej Zajicek
ttl 1.
2008-11-01Implementation of route server.Ondrej Zajicek
2008-10-29Fix race condition that breaks BGP connections after reconfigure.Ondrej Zajicek
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.
2008-10-28Fixes some sloppiness of commit a3b70dc499b64f41aa776b5b4afee5c7bfb8dfa6.Ondrej Zajicek
2008-10-27Merge branch 'dev' into outOndrej Zajicek
2008-10-27Two new informative CLI commands for OSPF.Ondrej Zajicek
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.
2008-10-26Missing newline.Ondrej Zajicek
2008-10-26Bugfix in LSA origination for PTP OSPF links.Ondrej Zajicek
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.
2008-10-26Bugfixes in MULIT_EXIT_DISC attribute handling.Ondrej Zajicek
- 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.
2008-10-26Bugfix in LOCAL_PREF attribute handling.Ondrej Zajicek
2008-10-26Implementation of an option for disabling AS4 support per BGP instance.Ondrej Zajicek
2008-10-26Implementation of route reflection for BGPOndrej Zajicek
2008-10-26Implementation of MD5 authentication of BGP sessions.Ondrej Zajicek
2008-10-26Implementation of 4B ASN support for BGPOndrej Zajicek
2008-08-25Expand ospf dump information.Ondrej Filip
2008-08-25Endianity problem in debug message fix.Ondrej Filip
2008-08-25The source address configuration in BGP added.Ondrej Filip
2005-03-16Small bugfix in tracing.Ondrej Filip
2005-03-15Added new parametr 'rx buffer <num>'. BIRD is able to receiveOndrej Filip
very large packets (if configured).
2005-03-15Maximal packet size in virtual links is 576.Ondrej Filip
2005-03-14OSPF can accept larger packets than MTU.Ondrej Filip
2005-03-14Look for large packets.Ondrej Filip