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2022-05-04Explicit definition structures of route attributesMaria Matejka
Changes in internal API: * Every route attribute must be defined as struct ea_class somewhere. * Registration of route attributes known at startup must be done by ea_register_init() from protocol build functions. * Every attribute has now its symbol registered in a global symbol table defined as SYM_ATTRIBUTE * All attribute ID's are dynamically allocated. * Attribute value custom formatting hook is defined in the ea_class. * Attribute names are the same for display and filters, always prefixed by protocol name. Also added some unit testing code for filters with route attributes.
2022-05-04Unified attribute and filter typesMaria Matejka
This commit removes the EAF_TYPE_* namespace completely and also for route attributes, filter-based types T_* are used. This simplifies fetching and setting route attributes from filters. Also, there is now union bval which serves as an universal value holder instead of private unions held separately by eattr and filter code.
2022-05-04Opaque types are named opaque also in filtersMaria Matejka
2022-05-04Special attribute types for enumsMaria Matejka
2022-02-06Merge branch 'oz-trie-table'Ondrej Zajicek (work)
2022-02-06BGP: Implement flowspec validation procedureOndrej Zajicek (work)
Implement flowspec validation procedure as described in RFC 8955 sec. 6 and RFC 9117. The Validation procedure enforces that only routers in the forwarding path for a network can originate flowspec rules for that network. The patch adds new mechanism for tracking inter-table dependencies, which is necessary as the flowspec validation depends on IP routes, and flowspec rules must be revalidated when best IP routes change. The validation procedure is disabled by default and requires that relevant IP table uses trie, as it uses interval queries for subnets.
2022-01-09BGP: Add option 'free bind'Ondrej Zajicek (work)
The BGP 'free bind' option applies the IP_FREEBIND/IPV6_FREEBIND socket option for the BGP listening socket. Thanks to Alexander Zubkov for the idea.
2021-02-10BGP: Add support for BGP hostname capabilityVincent Bernat
This is an implementation of draft-walton-bgp-hostname-capability-02. It is implemented since quite some time for FRR and in datacenter, this gives a nice output to avoid using IP addresses. It is disabled by default. The hostname is retrieved from uname(2) and can be overriden with "hostname" option. The domain name is never set nor displayed. Minor changes by committer.
2021-01-06BGP: Deprecate 'missing lladdr' optionOndrej Zajicek (work)
The option is not implemented since transition to 2.0 and no plan to add it. Also remove some deprecated RTS_* valus from documentation. Thanks to Sébastien Parisot for notification.
2020-11-12BFD: Better handling of BFD options in BGP configsOndrej Zajicek (work)
Merge multiple BFD option blocks in BGP configs instead of using the last one. That is necessary for proper handling of templates when BFD options are used both in a BGP template and in a BGP protocol derived from that template.
2020-11-08BFD: Allow per-request session optionsOndrej Zajicek (work)
BFD session options are configured per interface in BFD protocol. This patch allows to specify them also per-request in protocols requesting sessions (currently limited to BGP).
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
2019-10-09BGP: AIGP metric support (RFC 7311)Ondrej Zajicek (work)
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.
2019-08-14BGP: 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'.
2019-04-30BGP: 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.
2019-04-03BGP: Promiscuous ASN modeOndrej Zajicek (work)
Allow to specify just 'internal' or 'external' for remote neighbor instead of specific ASN. In the second case that means BGP peers with any non-local ASNs are accepted.
2019-03-19BGP: Mandatory option for channelsOndrej Zajicek (work)
Allow to mark channel to be mandatory, and do not allow BGP sessions if no common AFI/SAFI is established.
2018-12-16BGP: Extend 'next hop keep' and 'next hop self' optionsOndrej Zajicek (work)
Extend 'next hop keep' and 'next hop self' options to have boolean values (enabled / disabled) and also values 'ibgp'/ 'ebgp' to restrict it to routes received from IBGP / EBGP. This allows to have it enabled by default in some cases, matches features of other implementations, and allows to handle some strange cases like EBGP border router with 'next hop self' also doing IBGP route reflecting. Change default of 'next hop keep' to enabled for route servers, and 'ibgp' for route reflectors. Update documentation for these options.
2018-12-12BGP: implement Adj-RIB-InOndrej Zajicek (work)
The patch implements optional internal import table to a channel and hooks it to BGP so it can be used as Adj-RIB-In. When enabled, all received (pre-filtered) routes are stored there and import filters can be re-evaluated without explicit route refresh. An import table can be examined using e.g. 'show route import table bgp1.ipv4'.
2018-07-31BGP: Long-lived graceful restartOndrej Zajicek (work)
The patch implements long-lived graceful restart for BGP, namely draft-uttaro-idr-bgp-persistence-03.
2018-06-26Config: Dropping CF_ADDTO.Jan Maria Matejka
2018-05-29Protocol: Introducing an enum protocol_classJan Maria Matejka
This supersedes the EAP_* constants.
2018-01-23Merge branch 'master' into int-newOndrej Zajicek (work)
2018-01-16BGP: Implement 'disable after cease' optionOndrej Zajicek (work)
The option allows to specify that some cease subcodes should disable the protocol when received.
2018-01-16BGP: Require explicit import and export policies for EBGP channelsOndrej Zajicek (work)
To comply with RFC 8212 requirements.
2018-01-09Nest: Allow modification of channels inherited from templatesOndrej Zajicek (work)
Multiple definitions of same channels are forbidden, but inherited channel can be redefined. In such case channel options are merged.
2017-12-08BGP: Link check just for single-hopOndrej Zajicek (work)
2017-12-08Enable ECMP and Link detection by defaultOndrej Zajicek (work)
ECMP is not enabled on BSD, where it is not supported by BIRD.
2017-04-28Merge master into int-newOndrej Zajicek (work)
2017-04-12BGP: Add support for SAFI 129 (VPN multicast)Ondrej Zajicek (work)
Which, in contrast to SAFI 128, does not use MPLS labels.
2017-03-29BGP: Simplify igp table optionsOndrej Zajicek (work)
2017-03-26BGP: Support for routes with mixed-AF next hopsOndrej Zajicek (work)
Covers IPv4/VPNv4 routes with IPv6 next hop (RFC 5549), IPv6 routes with IPv4 next hop (RFC 4798) and VPNv6 routes with IPv4 next hop (RFC 4659). Unfortunately it also makes next hop hooks more messy. Each BGP channel now could have two IGP tables, one for IPv4 next hops, the other for IPv6 next hops.
2017-03-22BGP: Support for MPLS labels and VPN SAFIOndrej Zajicek (work)
Basic support for SAFI 4 and 128 (MPLS labeled IP and VPN) for IPv4 and IPv6. Should work for route reflector, but does not properly handle originating routes with next hop self. Based on patches from Jan Matejka.
2017-02-23BGP: Allow exchanging LOCAL_PREF with eBGP peersOndrej Zajicek (work)
Adds option 'allow bgp_local_pref' to override the usual restriction of LOCAL_PREF on eBGP sessions. Thanks to Lennert Buytenhek for the patch.
2017-01-24BGP: Partial support for IPv4 routes with IPv6 next hop (RFC 5549)Ondrej Zajicek (work)
Mostly capability signalling
2017-01-03Minor cleanupsOndrej Zajicek (work)
2016-12-07BGP: Add support for flowspec (RFC 5575)Ondrej Zajicek (work)
2016-12-07BGP redesignOndrej Zajicek (work)
Integrated and extensible BGP with generalized AFI handling, support for IPv4+IPv6 AFI and unicast+multicast SAFI.
2016-11-08Merge branch 'master' into int-newOndrej Zajicek (work)
2016-10-03BGP: Support for large communitiesOndrej Zajicek (work)
Add support for large communities (draft-ietf-idr-large-community), 96bit alternative to RFC 1997 communities. Thanks to Matt Griswold for the original patch.
2016-05-12Merge remote-tracking branch 'origin/master' into int-newOndrej Zajicek (work)
2016-04-13BSD: Add the IPsec SA/SP database entries controlOndrej Zajicek (work)
Add code for manipulation with TCP-MD5 keys in the IPsec SA/SP database at FreeBSD systems. Now, BGP MD5 authentication (RFC 2385) keys are handled automatically on both Linux and FreeBSD. Based on patches from Pavel Tvrdik.
2016-02-01Channels - explicit links between protocols and tablesOndrej Zajicek (work)
The patch adds support for channels, structures connecting protocols and tables and handling most interactions between them. The documentation is missing yet.
2015-07-18BGP: Extended messages supportOndrej Zajicek
Implements draft-ietf-idr-bgp-extended-messages-10, for now undocumented and with temporary private capability number.
2015-02-22Rename BGP option 'start delay' to 'connect delay'Ondrej Zajicek
Also update log message for error-triggered startup delay.
2015-02-22Relax BGP neighbor parameterOndrej Zajicek
Permit specifying neighbor address, AS number and port independently. Add 'interface' parameter for specifying interface for link-local sessions independently. Thanks to Alexander V. Chernikov for the original patch.
2015-02-21Store protocol config size inside protocol structureOndrej Zajicek
Make proto_config_new() use this info instead of supplied size. Thanks to Alexander V. Chernikov for the patch.
2015-02-21Link state support in BGP.Ondrej Zajicek
Configurable fast shutdown of a BGP session when an interface loses link.