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Commit Graph

79 Commits

Author SHA1 Message Date
Alexander Zubkov
8a40bccffe BFD: Add option to accept zero checksum for IPv6 UDP packets
Some vendors do not fill the checksum for IPv6 UDP packets.
For interoperability with such implementations one can set
UDP_NO_CHECK6_RX socket option on Linux.

Thanks to Ville O for the suggestion.

Minor changes by committer.
2024-06-26 16:29:57 +02:00
Ondrej Zajicek
e29f134ad9 BFD: Fix build when BFD is disabled
Move bfd_opts grammar inside BFD parser code to avoid dependences between
nest and BFD grammars, which breaks when BFD build is disabled.

Add dummy bfd_opts grammar rule, so protocols can use this nonterminal
even with BFD disabled.

Thanks to Yuri Honegger for the bugreport.
2024-05-28 15:31:52 +02:00
Katerina Kubecova
e6dbde6883 BFD: Set password per session 2024-04-16 15:30:59 +02:00
Ondrej Zajicek
1b064355f7 Client: Add support for completion of command options
We can easily extend command completion to handle also keywords for
command options. Help for command options is not yet supported.
2024-03-05 19:04:10 +01:00
Ondrej Zajicek
26dd61ee7f BFD: Add arguments to 'show bfd sessions' command
Add several arguments to 'show bfd sessions' command to filter
the list of sessions.
2024-03-05 00:02:16 +01:00
Ondrej Zajicek
4737937375 BFD: Improve 'show bfd sessions all' command 2024-03-04 23:51:37 +01:00
Katerina Kubecova
a48dc5efe0 BFD: Show session for ip / ip prefix 2024-03-04 23:35:10 +01:00
Katerina Kubecova
37bf207843 BFD: show bfd sessions all 2024-03-04 23:35:10 +01:00
Ondrej Zajicek
13c6cf8a74 Trivial code cleanups 2024-01-22 06:29:14 +01:00
Maria Matejka
6f798683a3 Conf: config warnings show the file position 2023-09-12 15:58:07 +02:00
Ondrej Zajicek
aa70e14c9e BFD: Improve handling of AdminDown
According to RFC 5882, system should not interpret the local or remote
session state transition to AdminDown as failure. We followed that for
the local session state but not for the remote session state (which
just triggered a transition of the local state to Down). The patch
fixes that.

We do not properly generate AdminDown on our side, so the patch is
relevant just for interoperability with other systems.

Thanks to Sunnat Samadov for the bugreport.
2023-08-29 18:23:29 +02:00
Ondrej Zajicek
99872676df BFD: Improve incoming packet matching
For active sessions, ignore received packets with zero local id and
mismatched remote id. That forces a session timeout instead of an
immediate session restart. It makes BFD sessions more resilient to
packet spoofing.

Thanks to André Grüneberg for the suggestion.
2023-01-22 23:42:08 +01:00
Maria Matejka
dc28c6ed1c Simplified the protocol hookup code in Makefiles 2022-08-18 22:07:30 +02:00
Maria Matejka
097f157182 Merge commit '692055e3df6cc9f0d428d3b0dd8cdd8e825eb6f4' into haugesund-to-2.0 2022-05-30 15:17:52 +02:00
Ondrej Zajicek (work)
692055e3df BFD: Add 'strict bind' option
Add BFD protocol option 'strict bind' to use separate listening socket
for each BFD interface bound to its address instead of using shared
listening sockets.
2022-04-07 19:33:40 +02:00
Maria Matejka
4a23ede2b0 Protocols have their own explicit init routines 2022-04-06 18:14:08 +02:00
Maria Matejka
ebd807c0b8 Slab allocator can free the blocks without knowing the parent structure 2022-04-06 18:14:08 +02:00
Maria Matejka
48bf1322aa Introducing an universal temporary linpool flushed after every task 2022-03-02 12:13:49 +01:00
Ondrej Zajicek (work)
910adaa08b BFD: Dispatch sessions also by interface index
Direct BFD sessions needs to be dispatched not only by IP addresses, but
also by interfaces, in order to avoid collisions between neighbors with
the same IPv6 link-local addresses.

Extend BFD session hash_ip key by interface index to handle that. Use 0
for multihop sessions.

Thanks to Sebastian Hahn for the original patch.
2021-01-10 15:29:02 +01:00
Ondrej Zajicek (work)
c9ae81656f Some minor sl_allocz() cleanups 2020-11-24 03:21:44 +01:00
Ondrej Zajicek (work)
99ad208dd7 BFD: Fix superfluous reconfiguration of sessions 2020-11-12 02:48:35 +01:00
Ondrej Zajicek (work)
9d3fc3062b BFD: Allow per-request session options
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).
2020-11-08 15:33:22 +01:00
Ondrej Zajicek (work)
c26c6bc2d7 Show info from multiple protocols when protocol is not specified
Most commands like 'show ospf neighbors' fail when protocol is not
specified and there are multiple instances of given protocol type.
This is annoying in BIRD 2, as many protocols have IPv4 and IPv6
instances. The patch changes that by showing output from all protocol
instances of appropriate type.

Note that the patch also removes terminating cli_msg() call from these
commands and moves it to the common iterating code.
2020-06-28 15:38:47 +02:00
Ondrej Zajicek (work)
7f9adafc10 BFD: Option to specify which class of BFD sessions are accepted
Allows to configure IPv4/IPv6-only or direct/multihop-only BFD protocol
instances.
2020-01-28 18:07:25 +01:00
Ondrej Zajicek (work)
4821251ebb BFD: Fix reconfiguration of neighbors
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.
2019-09-30 19:10:14 +02:00
Ondrej Zajicek (work)
00284f0ed6 BFD: Fix formatting of 'show bfd sessions'
The formatting was broken due to longer date in 'since' column.
2019-07-25 14:24:16 +02:00
Ondrej Zajicek (work)
cec40a7467 Merge remote-tracking branch 'origin/mq-filter-stack' 2019-07-24 15:38:32 +02:00
Ondrej Zajicek (work)
18f70a6229 Nest: VRF of protocol can be explicitly specified as 'default'
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.
2019-07-24 15:08:03 +02:00
Ondrej Zajicek (work)
cf7ff99513 BFD: Support for VRFs
Allow multiple BFD instances in separate VRFs, dispatch BFD requests
according to VRFs.

Thanks to Alexander Zubkov for notice and patches.
2019-07-17 16:20:35 +02:00
Maria Matejka
c0e958e022 Filter + Config: Fix bugs, tests and split symbols by type 2019-02-20 22:30:54 +01:00
Ondrej Zajicek (work)
3a2a3c7325 Doc: Rename code documentation files back to Doc 2018-12-14 02:03:42 +01:00
Jan Maria Matejka
d4cebc6bbe No more warnings ...
no more warnings
No more warnings over me
And while it is being compiled all the log is black and white
Release BIRD now and then let it flee

(use the melody of well-known Oh Freedom!)
2018-09-18 14:21:11 +02:00
Ondrej Zajicek (work)
586c1800c4 Nest: Neighbor cache cleanups
Simplify neighbor cache code, fix several minor bugs, and improve
handling of ONLINK flag.
2018-06-27 16:57:07 +02:00
Maria Matejka
c2fc4c10ac Doc: renamed progdoc files Doc -> progdoc to fix collision with doc/ folder on case-insensitive filesystems 2018-06-26 17:09:12 +02:00
Jan Maria Matejka
f851f0d7e3 Config: Dropping CF_ADDTO. 2018-06-26 14:29:03 +02:00
Jan Maria Matejka
ee7e2ffd26 Protocol: Introducing an enum protocol_class
This supersedes the EAP_* constants.
2018-05-29 12:35:06 +02:00
Ondrej Zajicek (work)
e87a95d97d Minor fixes for debug mode 2017-12-16 16:31:43 +01:00
Ondrej Zajicek (work)
a6f79ca57f Timers: Revert temporary names and remove old timer.h 2017-12-07 13:54:59 +01:00
Ondrej Zajicek (work)
d3fa9e84e9 Timers: Show sub-second times in some protocol outputs 2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
f047271cb9 Timers: Parse and format functions for microsecond times
Date/time output (e.g. in logs, show commands) can use %f to specify
subsecond time. By default, millisecond precision is used in output.
2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
534215a18f Timers: Split microsecond timers from BFD code to lib 2017-12-07 13:46:53 +01:00
Ondrej Zajicek (work)
734e9fb8a9 Minor cleanups and fixes 2017-05-23 13:12:25 +02:00
Ondrej Zajicek (work)
9b0a0ba9e6 Unit Testing for BIRD
- Unit Testing Framework (BirdTest)
 - Integration of BirdTest into the BIRD build system
 - Tests for several BIRD modules

 Based on squashed Pavel Tvrdik's int-test branch, updated for
 current int-new branch.
2016-11-09 16:36:34 +01:00
Ondrej Zajicek (work)
8860e991f6 Merge branch 'master' into int-new 2016-11-08 19:27:58 +01:00
Ondrej Zajicek (work)
cc5b93f72d Merge tag 'v1.6.2' into int-new 2016-11-08 17:04:29 +01:00
Ondrej Zajicek (work)
e03dc6a984 BFD: Authentication
Implement BFD authentication (part of RFC 5880). Supports plaintext
passwords and cryptographic MD5 / SHA-1 authentication.

Based on former commit from Pavel Tvrdik
2016-11-02 17:53:22 +01:00
Jan Moskyto Matejka
3e236955c9 Build: switch on -Wextra, get rid of most of the warnings
There are several unresolved -Wmissing-field-initializers on older
versions of GCC than 5.1, all of them false positive.
2016-11-01 14:52:54 +01:00
Pavel Tvrdik
0f5054f685 BFD: Fix invalid read from pollfd array
It is possible that sockets_add() are called between sockets_prepare()
and sockets_fire() during poll loop in birdloop_main(), so we need to
use loop->poll_fd.used instead of loop->sock_num to find the last field.
2016-09-15 16:18:32 +02:00
Ondrej Zajicek (work)
08b3a24da5 IO: Minor changes in socket AF handing
AF can be specified implicitly by saddr or daddr, flags SKF_V4ONLY and
SKF_V6ONLY are to be removed.
2016-05-17 15:21:49 +02:00
Jan Moskyto Matejka
0c6dfe5236 Merge branch 'int-new' into int-new-merged 2016-05-10 14:30:49 +02:00