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Commit Graph

100 Commits

Author SHA1 Message Date
Ondrej Zajicek
e0ed978e75 Netlink: Handle onlink flag on BSD-Netlink
On BSD, the onlink flag is not tracked or reported by kernel. We are
using an heuristic that assigns the onlink flag to routes scanned from
the kernel. We should use the same heuristic even in BSD-Netlink
case, as the onlink flag is not reported here too.

Thanks to Björn König for the original patch.
2024-12-12 04:04:07 +01:00
Luiz Amaral
d61505b039 BSD: IPv4 over IPv6 nexthop support on FreeBSD
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.
2023-04-21 02:03:31 +02:00
Ondrej Zajicek
f8276812e6 Minor cleanups 2023-01-13 13:32:29 +01:00
Ondrej Zajicek
7fb23041a5 BSD: Add support for kernel route metric
Add support for kernel route metric/priority, exported as krt_metric
attribute, like in Linux. This should also fix issues with overwriting
or removing system routes.
2023-01-13 13:17:46 +01:00
Ondrej Zajicek
34ebc4e1ba BSD: Workaround for direct routes on FreeBSD 13.0
FreeBSD 13.0 added some safechecks for syscalls, rejecting sockaddrs that
are too small, later versions loosen up the check.
2022-12-11 16:28:28 +01:00
Ondrej Zajicek
543c8ba097 BSD: Fix krt socket code w.r.t. rte/rta changes 2022-11-30 02:43:39 +01:00
Maria Matejka
24773af9e0 Merge commit 'e42eedb9' into haugesund 2022-03-09 11:02:55 +01:00
Ondrej Zajicek (work)
a39cd2cc0b BSD: Assume onlink flag on ifaces with only host addresses
The BSD kernel does not support the onlink flag and BIRD does not use
direct routes for next hop validation, instead depends on interface
address ranges. We would like to handle PtMP cases with only host
addresses configured, like:

  ifconfig wg0 192.168.0.10/32
  route add 192.168.0.4 -iface wg0
  route add 192.168.0.8 -iface wg0

To accept BIRD routes with onlink next-hop, like:

  route 192.168.42.0/24 via 192.168.0.4%wg0 onlink

BIRD would dismiss the route when receiving from the kernel, as the
next-hop 192.168.0.4 is not part of any interface subnet and onlink
flag is not kept by the BSD kernel.

The commit fixes this by assuming that for routes received from the
kernel, any next-hop is onlink on ifaces with only host addresses.

Thanks to Stefan Haller for the original patch.
2021-12-27 21:00:04 +01:00
Maria Matejka
e42eedb912 Kernel: Convert the rte-local attributes to extended attributes and flags to pflags 2021-10-13 19:09:04 +02:00
Toke Høiland-Jørgensen
b17adf0735 BSD: Propagate OS-level IFF_MULTICAST to internal IF_MULTICAST flag
The BSD code did not propagate the OS-level IFF_MULTICAST flag to the
Bird-internal IF_MULTICAST flag, which causes problems with Wireguard
interfaces on FreeBSD. The Linux sysdep code does propagate the flag
already, so just copy over the same check and flag update.
2021-05-10 19:49:43 +02:00
Stefan Haller
a7c9515ebc BSD: Fix invalid pointer derefence in logging code
For logging purposes a stack allocated net_addr struct was passed by
value as vararg (instead of the expected pointer). This resulted in
a segfault when the specific error condition got logged.
2021-04-19 15:06:42 +02:00
Ondrej Zajicek (work)
cc75b3e1dc KRT: Remove KRF_SYNC_ERROR flag
This info is now stored in an internal bmap. Unfortunately, net.flags
is still needed for temporary kernel data.
2019-12-19 16:34:35 +01:00
Ondrej Zajicek (work)
d8e816c150 BSD: Fix of the previous commit 2018-06-27 17:10:01 +02:00
Jan Maria Matejka
13c0be19d3 Nest: Removing separate tmpa from route propagation
This is a fundamental change of an original (1999) concept of route
processing inside BIRD. During import/export, there was a temporary
ea_list created which was to be used instead of the another one inside
the route itself.

This led to some confusion, quirks, and strange filter code that handled
extended route attributes. Dropping it now.

The protocol interface has changed in an uniform way -- the
`struct ea_list *attrs` argument has been removed from store_tmp_attrs(),
import_control(), rt_notify() and get_route_info().
2018-05-30 17:08:49 +02:00
Ondrej Zajicek (work)
4d36796131 KRT: Fix direct routes for BSD
Old way to set direct routes is to use local IP as gateway, but that does
not work properly on newer FreeBSDs. Now we use sockaddr_dl containing
interface index as gateway.
2018-01-14 19:21:39 +01:00
Ondrej Zajicek (work)
ac48e72bf6 Fix some minor issues 2017-12-12 15:57:14 +01:00
Ondrej Zajicek (work)
517d05dff1 Enable ECMP and Link detection by default
ECMP is not enabled on BSD, where it is not supported by BIRD.
2017-12-08 16:00:33 +01:00
Ondrej Zajicek (work)
4ff15a75c5 Merge commit '98bb80a243b58c43453e9be69d19d0350286549c' into int-new 2017-12-07 17:41:09 +01:00
Ondrej Zajicek (work)
cd80c9b070 BSD: Fix in the last commit 2017-12-07 14:21:38 +01:00
Ondrej Zajicek (work)
7c454d9186 BSD: Minor fix of penultimate commit 2017-12-07 13:44:00 +01:00
Ondrej Zajicek (work)
153f02da3b Nest: Maintain separate IPv4, IPv6 and LLv6 preferred addresses
Also redesign preferred address selection and update protocols to use
appropriate preferred address.

Based on a previous work by Jan Maria Matejka.
2017-12-07 13:06:01 +01:00
Ondrej Zajicek (work)
9befc7cc4f BSD: Fix alignment issue
Incorrect structure alignment breaks kernel routing table updates on
FreeBSD/ARM (and perhaps other platforms).

Thanks to Eugene Sevastyanov for the original patch.
2017-09-04 22:32:45 +02:00
Ondrej Zajicek (work)
b644a490f0 BSD: Fix address scan on OpenBSD 2017-04-29 18:37:51 +02:00
Ondrej Zajicek (work)
1d21306785 Minor fixes 2017-04-29 01:24:30 +02:00
Ondrej Zajicek (work)
62e64905b7 Several minor fixes 2017-02-20 02:26:45 +01:00
Jan Moskyto Matejka
5b208e296f Removing (struct rta)->cast. Never used. 2016-12-22 13:09:59 +01:00
Jan Moskyto Matejka
4e276a8920 Merged multipath and single-path data structures.
Dropped struct mpnh and mpnh_*()
Now struct nexthop exists, nexthop_*(), and also included struct nexthop
into struct rta.

Also converted RTD_DEVICE and RTD_ROUTER to RTD_UNICAST. If it is needed
to distinguish between these two cases, RTD_DEVICE is equivalent to
IPA_ZERO(a->nh.gw), RTD_ROUTER is then IPA_NONZERO(a->nh.gw).

From now on, we also explicitely want C99 compatible compiler. We assume
that this 20-year norm should be known almost everywhere.
2016-12-22 13:01:06 +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
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
Jan Moskyto Matejka
ccd2a3eda2 Kernel socket missing err_hook fix
Thanks to Tim Weippert for bugreport.
2016-09-29 13:21:16 +02:00
Jan Moskyto Matejka
0c6dfe5236 Merge branch 'int-new' into int-new-merged 2016-05-10 14:30:49 +02:00
Jan Moskyto Matejka
7152e5efbb Build system reworked to one global Makefile with includes and no nesting
Also removed the lib-dir merging with sysdep. Updated #include's
accordingly.

Fixed make doc on recent Debian together with moving generated doc into
objdir.

Moved Makefile.in into root dir

Retired all.o and birdlib.a
Linking the final binaries directly from all the .o files.
2016-05-10 14:07:34 +02:00
Jan Moskyto Matejka
7a7ac65682 Merge branch 'master' into int-new-channels 2016-04-08 12:28:33 +02:00
Ondrej Zajicek (work)
e86cfd41d9 KRT: Fix route learn scan when route changed
When a kernel route changed, function krt_learn_scan() noticed that and
replaced the route in internal kernel FIB, but after that, function
krt_learn_prune() failed to propagate the new route to the nest, because
it confused the new route with the (removed) old best route and decided
that the best route did not changed.

Wow, the original code (and the bug) is almost 17 years old.
2016-04-06 11:46:25 +02:00
Jan Moskyto Matejka
ade389b326 BSD: compilation error fix 2016-02-01 10:28:50 +01:00
Jan Moskyto Matejka
3f35816136 BSD: Explicitly dropping routes with mismatched AF's. 2016-01-21 14:55:33 +01:00
Jan Moskyto Matejka
8109eb765f BSD integration fixes 2016-01-20 12:05:16 +01:00
Ondrej Zajicek (work)
0bf95f99e6 Follow-up work on integration
Contains some patches from Jan Moskyto Matejka
2015-12-21 17:17:21 +01:00
Jan Moskyto Matejka
d7661fbe9d Removed BITS_PER_IP_ADDRESS, MAX_PREFIX_LENGTH, BIRD_AF
Explicit setting of AF_INET(6|) in IP socket creation. BFD set to listen
on v6, without setting the V6ONLY flag to catch both v4 and v6 traffic.

Squashing and minor changes by Ondrej Santiago Zajicek
2015-12-19 15:57:09 +01:00
Jan Moskyto Matejka
9b136840d9 Netlink and BSD: Integrating IPv4 and IPv6
Squashing and minor changes by Ondrej Santiago Zajicek
2015-12-18 20:03:47 +01:00
Jan Moskyto Matejka
9ddbfbddf8 Netlink: Allow more than 256 routing tables.
Since 2.6.19, the netlink API defines RTA_TABLE routing attribute to
allow 32-bit routing table IDs. Using this attribute to index routing
tables at Linux, instead of 8-bit rtm_table field.
2015-11-11 11:40:49 +01:00
Pavel Tvrdík
ae80a2de95 unsigned [int] -> uint 2015-06-08 02:24:08 +02:00
Ondrej Zajicek
90097f4fb9 KRT: Support for RTM_CHANGE on BSD 2015-04-22 10:53:15 +02:00
Ondrej Zajicek
304ac2e861 Minor fixes 2015-04-12 10:47:17 +02:00
Ondrej Zajicek
88a183c6c9 Integrated IP functions. 2014-10-24 11:11:43 +02:00
Ondrej Zajicek
029ec22d0a Fixes a bug in BSD kernel interfacing code.
The bug was introduced in 05476c4d04.
2014-07-09 18:34:42 +02:00
Ondrej Zajicek
05476c4d04 IPv4/IPv6 integrated socket code. 2014-05-18 11:42:26 +02:00
Ondrej Zajicek
3216eb03dd Fixes longstanding issue with interfaces staying in IF_TMP_DOWN.
Thanks to Pierluigi Rolando and others for the bugreport.
2014-02-26 12:52:00 +01:00
Ondrej Zajicek
283c7dfada Merge branch 'master' into add-path 2013-11-25 18:42:47 +01:00