Commit graph

1225 commits

Author SHA1 Message Date
Jan Moskyto Matejka
ec5e5d23fa Nexthop: Support for label stack in nest 2016-12-22 13:23:52 +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
Jan Moskyto Matejka
b94e5e58db RPKI: fixed some of the extended warnings 2016-12-07 15:35:35 +01:00
Jan Moskyto Matejka
ad88b94bca Merge branch 'int-new-rpki-squashed' (early part) into int-new 2016-12-07 15:30:46 +01:00
Ondrej Zajicek (work)
d15b0b0a1b BGP redesign
Integrated and extensible BGP with generalized AFI handling,
support for IPv4+IPv6 AFI and unicast+multicast SAFI.
2016-12-07 14:20:52 +01:00
Jan Moskyto Matejka
af62c0f9f1 LibSSH may be switched off together with RPKI 2016-12-07 14:15:35 +01:00
Jan Moskyto Matejka
f7f70bed8f Make: upgrade Babel makefiles 2016-12-07 09:35:24 +01:00
Pavel Tvrdík
65d2a88dd2 RPKI protocol with one cache server per protocol
The RPKI protocol (RFC 6810) using the RTRLib
(http://rpki.realmv6.org/) that is integrated inside
the BIRD's code.

Implemeted transports are:
 - unprotected transport over TCP
 - secure transport over SSHv2

Example configuration of bird.conf:
  ...
  roa4 table r4;
  roa6 table r6;

  protocol rpki {
    debug all;

    # Import both IPv4 and IPv6 ROAs
    roa4 { table r4; };
    roa6 { table r6; };

    # Set cache server (validator) address,
    # overwrite default port 323
    remote "rpki-validator.realmv6.org" port 8282;

    # Overwrite default time intervals
    retry   10;         # Default 600 seconds
    refresh 60;         # Default 3600 seconds
    expire 600;         # Default 7200 seconds
  }

  protocol rpki {
    debug all;

    # Import only IPv4 routes
    roa4 { table r4; };

    # Set cache server address to localhost,
    # use default ports tcp => 323 or ssh => 22
    remote 127.0.0.1;

    # Use SSH transport instead of unprotected transport over TCP
    ssh encryption {
      bird private key "/home/birdgeek/.ssh/id_rsa";
      remote public key "/home/birdgeek/.ssh/known_hosts";
      user "birdgeek";
    };
  }
  ...
2016-12-07 09:35:24 +01:00
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)
c8cafc8ebb Minor code cleanups 2016-11-08 17:46:29 +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
Ondrej Zajicek (work)
29239ba2bb OSPF: Use message authentication interface
Based on former commit from Pavel Tvrdik
2016-11-02 17:53:22 +01:00
Ondrej Zajicek (work)
390601f038 RIP: Use message authentication interface
Based on former commit from Pavel Tvrdik
2016-11-02 17:53:22 +01:00
Pavel Tvrdík
56cb3bedc2 Nest: Add support for MAC algorithms in grammar 2016-11-02 16:23:53 +01:00
Ondrej Zajicek (work)
de2a27e255 Add generic message authentication interface
Add generic interface for generating and verifying MACs (message
authentication codes). Replace multiple HMAC implementation with
a generic one.
2016-11-02 16:23:53 +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
Ondrej Filip
3213273d82 IANA assigned a different number to large BGP communities - changed. 2016-10-27 11:08:28 +02:00
Ondrej Zajicek (work)
66dbdbd993 BGP: Support for large communities
Add support for large communities (draft-ietf-idr-large-community),
96bit alternative to RFC 1997 communities.

Thanks to Matt Griswold for the original patch.
2016-10-03 12:48:56 +02:00
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)
84cac51a51 Nest: Keep multipath next hops sorted 2016-09-14 11:53:54 +02:00
Ondrej Zajicek (work)
13a31a4001 Babel: Immediately update hello interval on interface reconfigure
An interface reconfiguration may change both the hello and update
intervals. An update interval change is immediately put into effect,
while a hello interval change is not. This also updates the hello
interval immediately (if the new interval is shorter than the old one),
and sends a hello to notify peers of the change.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-20 15:55:45 +02:00
Ondrej Zajicek (work)
c6ed5a0f99 Babel: Do not maintain feasibility distance for our own routes
We do not need to maintain feasibility distances for our own router
ID (we ignore the updates anyway). Not doing so makes the routes be
garbage collected sooner when export filters change.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19 14:38:36 +02:00
Ondrej Zajicek (work)
0f67366601 Babel: Do not keep an infeasible route as selected
When a route becomes infeasible it should not be kept as selected; this
is forbidden by section 3.6 of the RFC and prevents subsequent updates
from the same router ID from replacing it.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19 14:28:53 +02:00
Ondrej Zajicek (work)
5d6ca22085 Babel: Send wildcard retractions on shutdown and startup
This makes BIRD send a wildcard retraction on all interfaces before
shutting down and right after starting up. This helps ensure that
neighbours will discard the announced routes as soon as possible,
rather than only after the normal timeout procedures.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19 14:23:41 +02:00
Ondrej Zajicek (work)
ecae2f43f3 Babel: Rework handling of retractions
An update with wildcard AE and infinite metric should be treated as a
global retraction of all prefixes announced by that neighbour, per
section 4.4.9 of the RFC. In addition, router ID and seqno in retraction
updates should be ignored. This reworks the handling of retractions and
adjusts the parser to handle all this correctly.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19 13:33:02 +02:00
Ondrej Zajicek (work)
321ff8c404 Babel: Make sure intervals do not overflow
Intervals are carried as 16-bit centisecond values, but kept internally
in 16-bit second values, which causes a potential for overflow. This adds
some checks to make sure this does not happen.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19 11:57:20 +02:00
Ondrej Zajicek (work)
ea0cb652e9 BGP: Fix extended messages
Change attribute length limit to handle extended (64 kB) messages.

Do not mix updates and withdraws (RFC 7606).
2016-07-11 20:41:32 +02:00
Ondrej Zajicek (work)
775a5a8195 BGP: Skip empty path segments in received AS_PATH
Although RFC 4271 does not forbid empty path segments, they are useless
and some implementations consider them invalid. It is clarified in RFC 7606,
specifying that AS_PATH with empty segment is considered malformed.
2016-06-29 14:24:32 +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
Ondrej Zajicek (work)
af678af0d5 Merge remote-tracking branch 'origin/master' into int-new 2016-05-12 18:03:23 +02:00
Pavel Tvrdik
8e433d6a52 Prog Doc: Complete several missing parameters 2016-05-12 15:49:44 +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
92912f063a Merge remote-tracking branch 'origin/rte-update' into int-new 2016-05-10 14:21:15 +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
Ondrej Zajicek (work)
937e75d8f1 Add the Babel routing protocol (RFC 6126)
This patch implements the IPv6 subset of the Babel routing protocol.
Based on the patch from Toke Hoiland-Jorgensen, with some heavy
modifications and bugfixes.

Thanks to Toke Hoiland-Jorgensen for the original patch.
2016-04-28 18:01:40 +02:00
Ondrej Zajicek (work)
a7baa09862 BSD: Add the IPsec SA/SP database entries control
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.
2016-04-13 14:37:09 +02:00
Jan Moskyto Matejka
2003a18407 Route update: move table lookup from protocols into rte_update2().
Many protocols do almost the same when creating a rte_update request
before calling rte_update2(). This commit should simplify the protocol
side of the route-creation routine.
2016-04-08 13:09:06 +02:00
Jan Moskyto Matejka
7a7ac65682 Merge branch 'master' into int-new-channels 2016-04-08 12:28:33 +02:00
Jan Moskyto Matejka
4bdf1881dc Channelize: rt_notify arg conversion table -> channel 2016-04-07 10:08:23 +02:00
Ondrej Zajicek (work)
bd22d7f41d IO: Avoid multiple event cycles in one loop cycle.
Event cycle may took too much time and trigger next timer events, so
avoid cycling between timer and event cycles inside the loop cycle.
2016-04-06 11:57:28 +02:00
Ondrej Zajicek (work)
9e7b3ebdf9 IO: Replace RX priority heuristic with explicit mark
In BIRD, RX has lower priority than TX with the exception of RX from
control socket. The patch replaces heuristic based on socket type with
explicit mark and uses it for both control socket and BGP session waiting
to be established.

This should avoid an issue when during heavy load, outgoing connection
could connect (TX event), send open, but then failed to receive OPEN /
establish in time, not sending notifications between and therefore
got hold timer expired error from the neighbor immediately after it
finally established the connection.
2016-04-06 11:49:34 +02:00
Ondrej Zajicek (work)
665b8e5283 Birdlib: Do cleanups after remove/free
To avoid byzantine behavior in case of some errors, linked lists are
cleared after rem_node() and resource headers are cleared after rfree().
2016-03-23 02:21:42 +01:00
Ondrej Zajicek (work)
39a6b19d6d OSPF: Fix bogus LSA ID collisions between received and originated LSAs
After restart, LSAs locally originated by the previous instance are
received from neighbors. They are installed to LSA db and flushed. If
export of a route triggers origination of a new external LSA before flush
of the received one is complete, the check in ospf_originate_lsa() causes
origination to fail (because en->nf is NULL for the old LSA and non-NULL
for the new LSA). The patch fixes this by updating the en->nf for LSAs
being flushed (as is already done for empty ones). Generally, en->nf
field deserves some better description in the code.

Thanks to Jigar Mehta for analyzing the problem.
2016-03-23 02:21:42 +01:00
Ondrej Zajicek (work)
a459f4df16 OSPF: Fix reading from freed memory
Thanks to Pavel Tvrdik for noticing it.
2016-03-23 02:21:42 +01:00
Jan Moskyto Matejka
62a4ad3657 Merge remote-tracking branch 'origin/poll' 2016-03-22 13:23:55 +01:00
Pavel Tvrdík
9036bbf2b7 RIP: fix typo in configuration at rx length opt 2016-03-17 18:40:54 +01:00
Jan Moskyto Matejka
fd926ed4ee Poll: Prevent the improbable case of EAGAIN after POLLIN 2016-03-15 14:57:49 +01:00