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2023-06-22Merge tag 'v2.13.1'Maria Matejka
2023-06-22NEWS and version updatev2.13.1Maria Matejka
2023-06-22Filter: Fixed segfault when a case option had an empty blockMaria Matejka
Thanks to Kobayashi_Bairuo <noc@tohunet.com> for reporting.
2023-06-22BGP: Fix role check when no capability option is presentOndrej Zajicek
When an OPEN message without capability options was parsed, the remote role field was not initialized with the proper (non-zero) default value, so it was interpreted as if 'provider' was announced. Thanks to Mikhail Grishin for the bugreport.
2023-06-15Netlink: Allow RTA_VIA even without MPLS supportLuiz Amaral
It is necessary for IPv4 over IPv6 nexthop support on FreeBSD, and RTA_VIA is not really related to MPLS. It breaks build for some very old systems like Debian 8 and CentOS 7, but we generally do not support older kernels than 4.14 LTS anyway.
2023-06-15CI: Remove obsolete CI targetsOndrej Zajicek
Remove build-debian-8, build-ubuntu-14_04, build-centos-7, pkg-debian-9, and pkg-centos-7 targets. Debian 8, Ubuntu 14.04, and CentOS 7 have unsupported kernels, Debian 9 has okay kernel, but is EOL.
2023-06-08BMP: Ensure that bmp_fire_tx() does nothing when not upOndrej Zajicek
2023-06-08BMP: Support multiple instances of BMP protocolOndrej Zajicek
Add internal BMP functions with plicit bmp_proto *p as first argument, which allows using TRACE() macro. Keep list of BMP instances and call internal functions. Old BMP functions are wrappers that call internal functions for all enabled BMP instances. Extract End-of-RIB mark into separate function. Based on patch from Michal Zagorski <mzagorsk@akamai.com>. Thanks!
2023-06-02Babel: Minor changes to RTT formattingOndrej Zajicek
Use existing %t printf code and move 'ms' in CLI output to table header.
2023-06-02Babel: Add support for the RTT extensionToke Høiland-Jørgensen
This adds support to the Babel protocol for the RTT extension specified in draft-ietf-babel-rtt-extension. While this extension is not yet at the RFC stage, it is one of the more useful extensions to Babel[0], so it seems worth having in Bird as well. The extension adds timestamps to Hello and IHU TLVs and uses these to compute an RTT to each neighbour. An extra per-neighbour cost is then computed from the RTT based on a minimum and maximum interval and cost value specified in the configuration. The primary use case for this is improving routing in a geographically distributed tunnel-based overlay network. The implementation follows the babeld implementation when picking constants and default configuration values. It also uses the same RTT smoothing algorithm as babeld, and follows it in adding a new 'tunnel' interface type which enables RTT by default. [0] https://alioth-lists.debian.net/pipermail/babel-users/2022-April/003932.html
2023-06-02IO: Add current_time_now() function for immediate timestampToke Høiland-Jørgensen
Add a current_time_now() function which gets an immediate monotonic timestamp instead of using the cached value from the event loop. This is useful for callers that need precise times, such as the Babel RTT measurement code. Minor changes by committer.
2023-05-31BMP: Fix bug in buffer resizeOndrej Zajicek
The buffer code in bmp_buffer_grow(), reuse the MRT buffer handling code. Based on comments by Michal Zagorski <mzagorsk@akamai.com>, Thanks!
2023-05-31BMP: Proper reconfiguration and protocol statusOndrej Zajicek
Based on patches from Michal Zagorski <mzagorsk@akamai.com> co-authored with Pawel Maslanka <pmaslank@akamai.com>. Thanks!
2023-05-30BMP: Add station address checkOndrej Zajicek
Also, do not initialize it to IPA_NONE4, use regular IPA_NONE.
2023-05-30BMP: Add local address optionMichal Zagorski
Also remove unused local and ip_post_policy options. Co-authored with Pawel Maslanka <pmaslank@akamai.com>. Minor changes by committer.
2023-05-30BMP: Minor formatting cleanupsOndrej Zajicek
Based on patches from Michal Zagorski <mzagorsk@akamai.com> co-authored with Pawel Maslanka <pmaslank@akamai.com>. Thanks!
2023-05-30BGP: Improve bgp_create_update_bmp()Ondrej Zajicek
Fix issue with missing AF cap (e.g. IPv4 unicast when no capabilities are announced). Add Linpool save/restore action similar to bgp_create_update(). Based on patch from Michal Zagorski <mzagorsk@akamai.com> co-authored with Pawel Maslanka <pmaslank@akamai.com>. Thanks!
2023-05-19BGP: Fix role check when no capability option is presentOndrej Zajicek
When an OPEN message without capability options was parsed, the remote role field was not initialized with the proper (non-zero) default value, so it was interpreted as if 'provider' was announced. Thanks to Mikhail Grishin for the bugreport.
2023-05-18Lib: Improve IP/net hashingOndrej Zajicek
Backport some changes from branch oz-parametric-hashes. Replace naive hash function for IPv6 addresses, fix hashing of VPNx (where upper half of RD was ignored), fix hashing of MPLS labels (where identity was used).
2023-05-16Nest: Add tests and benchmark for FIBOndrej Zajicek
Basic fib_get() / fib_find() test for random prefixes, FIB_WALK() test, and benchmark for fib_find(). Also generalize and reuse some code from trie tests.
2023-05-01BMP: Use OPEN messages stored in BGPOndrej Zajicek
The BMP protocol needs OPEN messages of established BGP sessions to construct appropriate Peer Up messages. Instead of saving them internally we use OPEN messages stored in BGP instances. This allows BMP instances to be restarted or enabled later. Because of this change, we can simplify BMP data structures. No need to keep track of BGP sessions when we are not started. We have to iterate over all (established) BGP sessions when the BMP session is established. This is just a scaffolding now, but some kind of iteration would be necessary anyway. Also, the commit cleans up handling of msg/msg_length arguments to be body/body_length consistently in both rx/tx and peer_up/peer_down calls.
2023-05-01BGP: Save sent and received OPEN messagesOndrej Zajicek
These are necessary for BMP Peer UP message and it is better to keep them in BGP than in BMP (so BMP could be restarted or added later).
2023-04-27Conf: Improve handling of keywordsOndrej Zajicek
For whatever reason, parser allocated a symbol for every parsed keyword in each scope. That wasted time and memory. The effect is worsened with recent changes allowing local scopes, so keywords often promote soft scopes (with no symbols) to real scopes. Do not allocate a symbol for a keyword. Take care of keywords that could be promoted to symbols (kw_sym) and do it explicitly.
2023-04-27Conf: Fix symbol lookupOndrej Zajicek
The symbol table used just symbol name as a key, and used a trick with active flag to find symbols in active scopes with one hash table lookup. The disadvantage is that it can degenerate to O(n) for negative queries in situations where are many symbols with the same name in different scopes. Thanks to Yanko Kaneti for the bugreport.
2023-04-21NEWS and version updatev2.13Ondrej Zajicek
2023-04-21Filter: Disable some trie formatting testsOndrej Zajicek
Trie formatting works slightly different with 4-way tries than with 16-way ones, so these tests generated false error. Block them for now.
2023-04-21Merge branch 'bmp'Ondrej Zajicek
2023-04-21BMP: Add some basic documentationOndrej Zajicek
2023-04-21BSD: IPv4 over IPv6 nexthop support on FreeBSDLuiz Amaral
The support for IPv4 routes with IPv6 nexthops was implemented in FreeBSD 13.1, this patch allows to import and export such routes from/to kernel. Minor change from committer.
2023-04-20Linpool: Fix lp_restore()Maria Matejka
When lp_save() is called on an empty linpool, then some allocation is done, then lp_restore() is called, the linpool is restored but the used chunks are inaccessible. Fix it.
2023-04-20BMP: Silence some log messagesOndrej Zajicek
Hooks called from BGP to BMP should not log warning when BMP is not connected, that is not an error (and we do not want to flood logs with a ton of messages). Blocked sk_send() should not log warning, that is expected situation. Error during sk_send() is handled in error hook anyway.
2023-04-20BMP: Fix connection managementOndrej Zajicek
Replace broken TCP connection management with a simple state machine. Handle failed attempts properly with a timeout, detect and handle TCP connection close and try to reconnect after that. Remove useless 'station_connected' flag. Keep open messages saved even after the BMP session establishment, so they can be used after BMP session flaps. Use proper log messages for session events.
2023-04-18BMP: Fix reconfigurationOndrej Zajicek
It is not supported, but at least it must update internal config pointer to not keep old one.
2023-04-18BMP: Allow build without BMP and disable BMP build by defaultOndrej Zajicek
It has still several important issues to be enabled by default.
2023-04-18BMP: Move initialization to bmp_start()Ondrej Zajicek
That fixes BMP socket allocation from an invalid pool.
2023-04-18BMP: Fix missing templateOndrej Zajicek
It is mandatory for protocol.
2023-04-16BMP: Add some missing bmp_buffer_free() callsOndrej Zajicek (work)
They were inadvertently removed during recent code refactoring. Thanks to Dawid Macek for the bugreport and patch.
2023-04-16BMP: Remove duplicate functions for update encodingOndrej Zajicek (work)
Use existing BGP functions also for BMP update encoding.
2023-04-16BMP: Integrate bmp_conn to bmp_protoOndrej Zajicek (work)
There is only one socket per BMP instance, no need to have separate struct (like in BGP).
2023-04-16BMP: Minor cleanupsOndrej Zajicek (work)
Remove redundant 'disable' option, simplify IP address serialization, and remove useless macros.
2023-04-16BMP: Do not use global instance ptr internallyOndrej Zajicek (work)
Use local variable to refence relevant instance instead of using global instance ptr. Also, use 'p' variable instead of 'bmp' so we can use common macros like TRACE().
2023-04-16BMP: Remove superfluous error handlingOndrej Zajicek (work)
Most error handling code was was for cases that cannot happen, or they would be code bugs (and should use ASSERT()). Keep error handling for just for I/O errors, like in rest of BIRD.
2023-04-16BMP protocol supportPawel Maslanka
Initial implementation of a basic subset of the BMP (BGP Monitoring Protocol, RFC 7854) from Akamai team. Submitted for further review and improvement.
2023-04-14BGP: Add 'allow bgp_med' option for EBGP sessionsTrisha Biswas
This option allows to treat bgp_med as regular transitive attribute on EBGP sessions (without hacks in filters). Minor changes from committer.
2023-04-13Increase tests timeoutJakub Ružička
Tests may take longer than 5 s to complete on slow/virtual machines.
2023-04-04BGP: Fix bgp_med handlingOndrej Zajicek
Missing translation from BGP attribute ID to eattr ID in bgp_unset_attr() broke automatic removal of bgp_med during export to EBGP peers. Thanks to Edward Sun for the bugreport.
2023-03-18Add missing references to "show route in" in the cli-help and doc.Johannes Moos
The feature of showing all prefixes inside the given one has been added in v2.0.9 but not well documented. Fixing it by this update. Text in doc and commit message added by commiter.
2023-03-16BGP: Free bind applies also to outbound connectionsMaria Matejka
Even though the free bind option is primarily meant to alleviate problems with addresses assigned too late, it's also possible to use BIRD with AnyIP configuration, assigning whole ranges to the machine. Therefore free bind allows also to create an outbound connection from specific address even though such address is not assigned.
2023-03-06Net: Replace runtime checks with STATIC_ASSERT()Ondrej Zajicek
2023-03-06Printf test suite fails on systems with musl libc because tests for "%m"Petr Vaněk
and "%M" formats expect "Input/output error" message but musl returns "I/O error". Proposed change compares the printf output with string returned from strerror function for EIO constant. See-also: https://bugs.gentoo.org/836713 Minor change from committer.
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