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2019-12-03BGP: Add some statisticsOndrej Zajicek (work)
Add some statistic counters to BGP consistent with BGP MIB (RFC 4273), including persistent 'FSM established transitions'.
2019-11-18BGP: Fix processing of IPv6 FlowspecOndrej Zajicek (work)
During NLRI parsing of IPv6 Flowspec, dst prefix was not properly extracted from NLRI, therefore a received flow was stored in a different position in flowspec routing table, and was not reachable by command 'show route <flow>'. Add proper prefix part accessors to flowspec code and use them from BGP NLRI parsing code. Thanks to Alex D. for the bugreport.
2019-11-10BGP: Add option to enforce first AS in AS_PATHOndrej Zajicek (work)
This is optional check described in RFC 4271. Although this can be also done by filters, it is widely implemented option in BGP implementations. Thanks to Eugene Bogomazov for the original patch.
2019-11-04BGP: Add option to reject AS_SETsOndrej Zajicek (work)
There is a pending draft to make them obsolete
2019-10-26BGP: RFC 8654 got releasedOndrej Zajicek (work)
2019-10-24BGP: Fix handling of transitive extended communitiesOndrej Zajicek (work)
Transitive extended communities should be removed on external sessions, the old code them in all cases. Thanks to Jean-Daniel Pauget for the original patch.
2019-10-19RPKI: Fix handling of IPv6 cache addressesOndrej Zajicek (work)
The old code used just sizeof(struct sockaddr) bytes of IP address.
2019-10-10BGP: Fix reconfiguration with import tableOndrej Zajicek (work)
Change of some options requires route refresh, but when import table is active, channel reload is done from it instead of doing full route refresh. So in this case we request it internally.
2019-10-09BGP: AIGP metric support (RFC 7311)Ondrej Zajicek (work)
2019-10-09Lib: Support for 64-bit numbers in bvsnprintf()Ondrej Zajicek (work)
Use 'l' for s64/u64 instead of for long/ulong, as that is much more useful. Also make number() correct with regard to signed/unsigned typecasts.
2019-10-09Perf: allow testing with cached route attributes.Maria Matejka
2019-09-30BFD: Fix reconfiguration of neighborsOndrej Zajicek (work)
The bfd_reconfigure_neighbors() returned after first reconfigured neighbor instead of continuing with the next one. Thanks to Winston Chen for the bugreport and a patch.
2019-09-17BGP: Fix setup with multiple dynamic BGP rangesOndrej Zajicek (work)
Based on a patch from Liam Nattrass, thanks.
2019-09-09BGP: Fix handling of bgp_aggregator atttributeOndrej Zajicek (work)
The attribute should not be modifiable by filters as we do not support its type.
2019-09-09BGP: Fix bugs in handling of shutdown messagesOndrej Zajicek (work)
There is an improper check for valid message size, which may lead to stack overflow and buffer leaks to log when a large message is received. Thanks to Daniel McCarney for bugreport and analysis.
2019-08-29OSPF: Fix 'show ospf lsadb' cmd without proto argOndrej Zajicek (work)
It crashed when used without protocol argument. Thanks to Alexander for the bugreport.
2019-08-21BGP: Use reallocation for capability structureOndrej Zajicek (work)
Instead of having large stack buffer for max amount of AFI/SAFI pairs. The old code is not correct w.r.t. extendeded option length, as more AFI/SAFI pairs may fit into the capability option.
2019-08-20BGP: Implement extended optional parameters lengthOndrej Zajicek (work)
Extends BGP options/capabilities data length to 16bit, to avoid issues with too many capabilities. See draft-ietf-idr-ext-opt-param-07
2019-08-14BGP: implement Adj-RIB-OutOndrej Zajicek (work)
The patch implements optional internal export table to a channel and hooks it to BGP so it can be used as Adj-RIB-Out. When enabled, all exported (post-filtered) routes are stored there. An export table can be examined using e.g. 'show route export table bgp1.ipv4'.
2019-08-12RAdv: Allow solicited RAs to be sent as unicastOndrej Zajicek (work)
Add option to send solicited router advertisements as unicast directly to soliciting nodes instead of as multicast to all-nodes group.
2019-08-06BGP: Improve reconfigurationOndrej Zajicek (work)
Several BGP channel options (including 'next hop self') could be reconfigured without session reset, with just route refeed/refresh. The patch improves reconfiguration code to do it that way.
2019-08-06BGP: Fix 'deterministic med' to work with 'merge paths'Ondrej Zajicek (work)
The 'deterministic med' option is implemented by suppressing other than best-in-group routes (grouped by ASN) from best route selection. This interferes with 'merge paths' as supressed routes are no longer mergable with best route. This is fixed by suppressing only those routes that are not mergable with best-in-group route.
2019-07-29RPKI: Fix allocation of hostname when using an IPv6 addressVincent Bernat
2019-07-25BFD: Fix formatting of 'show bfd sessions'Ondrej Zajicek (work)
The formatting was broken due to longer date in 'since' column.
2019-07-24Merge remote-tracking branch 'origin/mq-filter-stack'Ondrej Zajicek (work)
2019-07-24Nest: VRF of protocol can be explicitly specified as 'default'Ondrej Zajicek (work)
Protocol can have specified VRF, in such case it is restricted to a set of ifaces associated with the VRF, otherwise it can use all interfaces. The patch allows to specify VRF as 'default', in which case it is restricted to a set of iface not associated with any VRF.
2019-07-23OSPF: Fix formatting of 'show ospf neighbors'Ondrej Zajicek (work)
The formatting was broken when too short router-id was used.
2019-07-23RPKI: Fix reconfiguration when ssh parameters are undefinedOndrej Zajicek (work)
2019-07-17BFD: Support for VRFsOndrej Zajicek (work)
Allow multiple BFD instances in separate VRFs, dispatch BFD requests according to VRFs. Thanks to Alexander Zubkov for notice and patches.
2019-07-15Merge remote-tracking branch 'origin/master' into mq-filter-stackMaria Matejka
2019-07-10OSPF: Fix handling of NSSA option flagsOndrej Zajicek (work)
Per RFC 3101, N-bit signalling NSSA support should be used only in Hello packets, not in DBDES packets. BIRD since 2.0.4 verifies N-bit in neighbor structure, which is learned from DBDES packets, therefore NSSA-LSAs are not propagated to proper implementations of RFC 3101. This patch fixes that. Both removing the check and removing N-bit from DBDES packet. This will fix compatibility issues with proper implementations, but causes compatibility issues with BIRD 2.0.4.
2019-07-10Merge branch 'master' into mq-filter-stackMaria Matejka
2019-07-09OSPF: Minor fix in graceful restartOndrej Zajicek (work)
Most LSA origination is blocked in ospf_update_topology(), this fix blocks LSA origination from ospf_rt_spf().
2019-07-09OSPF: Update DR when local priority changesOndrej Zajicek (work)
When priority is reconfigured locally, we need to trigger DR election. (recommiting, was reset by the previous commit)
2019-07-09OSPF: Fix handling of external routes on graceful restartOndrej Zajicek (work)
We need to flush learned external LSAs a bit later than other LSAs (after first feed after end of the graceful restart) to avoid flap of external routes.
2019-07-04OSPF: Update DR when local priority changesOndrej Zajicek (work)
When priority is reconfigured locally, we need to trigger DR election.
2019-07-03Merge branch 'master' into mq-filter-stackMaria Matejka
2019-07-03Dynamic attributes definition split whether it is bitmask or not.Maria Matejka
2019-07-01BGP: Prefix hash is too small, increase its max size.Maria Jan Matejka
This doesn't make any change for you until you have millions of updates waiting to be sent. Increasing the max hash size from 2^20 to 2^24.
2019-07-01BGP: split tx explicitlyMaria Jan Matejka
If BGP has too many data to send and BIRD is slower than the link, TX is always possible until all data is sent. This patch limits maximum number of generated BGP messages in one iteration of TX hook.
2019-06-30OSPF: Support for graceful restartOndrej Zajicek (work)
Implement OSPFv2 (RFC 3623) and OSPFv3 (RFC 5187) graceful restart, for both restarting and helper sides. Graceful restart is initiated by 'graceful down' command.
2019-06-30Nest: Add command to request graceful restartOndrej Zajicek (work)
When 'graceful down' command is entered, protocols are shut down with regard to graceful restart. Namely Kernel protocol does not remove routes and BGP protocol does not send notification, just closes the connection.
2019-06-12BGP: Fix bug introduced in one of last patchesOndrej Zajicek (work)
2019-05-22Filter: Some people can't pronounce "postfixify" correctly. Let's try ↵Jan Maria Matejka
"linearize" instead. This is just a naming change.
2019-05-17Lexer now returns known sym / unknown sym / keywordMaria Matejka
2019-04-30BGP: Compliance with RFC8203bisAlexander Azimov
2019-04-30BGP: Output Local AS number in show protocolOndrej Zajicek (work)
Useful for implementation of agents implementing the SNMP-BGP MIB, which requires the local AS of a session to be specified. Thanks to Jan-Philipp Litza for the patch.
2019-04-30BGP: Dynamic BGPOndrej Zajicek (work)
Support for dynamically spawning BGP protocols for incoming connections. Use 'neighbor range' to specify range of valid neighbor addresses, then incoming connections from these addresses spawn new BGP instances.
2019-04-12OSPFv3: Fix some overlooked cases in IPv4 modeOndrej Zajicek (work)
Prefixes with max length (/32) were not handled properly. Thanks to bauen1 for the bugreport.
2019-04-08BGP: Handle corner cases in event orderingOndrej Zajicek (work)
When BGP connection is opened, it may happen that rx hook (with remote OPEN) is called before tx hook (for local OPEN). Therefore, we need to do internal changes (like setting local_caps) synchronously with OPENSENT transition and we need to ensure that OPEN is sent before KEEPALIVE.