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203 commits

Author SHA1 Message Date
Jan Moskyto Matejka
d47c3d64b2 MPLS: Label stack concatenation for recursive routes 2016-12-22 21:38:33 +01:00
Jan Moskyto Matejka
d14f8c3c45 Netlink: MPLS routes in kernel 
Anyway, Bird is now capable to insert both MPLS routes and MPLS encap
routes into kernel.

It was (among others) needed to define platform-specific AF_MPLS to 28
as this constant has been assigned in the linux kernel.

No support for BSD now, it may be added in the future.
 2016-12-22 21:38:33 +01:00
Jan Moskyto Matejka
f2010f9c65 Static: Protocol rework wrt. struct nexthop changes; MPLS label support 2016-12-22 21:38:33 +01:00
Jan Moskyto Matejka
ec5e5d23fa Nexthop: Support for label stack in nest 2016-12-22 13:23:52 +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)
77234bbbde Basic flow specification support (RFC 5575) 
Add flow4/flow6 network and rt-table type and operations, config grammar
and static protocol support.

Squashed flowspec branch from Pavel Tvrdik.
 2016-12-07 15:54:19 +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
Pavel Tvrdik
f6e8e141df Check table type at `show route for ...' 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)
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
2e7fb11a6e Fixed memory bloating on kernel merge paths together with export filter. 
Some memory was being allocated from bad linpool, not from the given one
as they should.

Thanks to Madhu and Justin Cattle for reporting this.
 2016-10-12 14:22:01 +02:00
Pavel Tvrdik
a290da25a1 rt-table: Fix kernel protocol export filter memory bug 
Kernel protocol calls rt_export_merged(), which used @rte_update_pool for
temporary allocations, supposing it is called from other functions from
rt-table.c that handles locking and flushing of the linpool. Therefore,
linpool was not flushed properly and memory leaked.

Add linpool argument to rt_export_merged() and use @krt_filter_lp when
called from kernel protocol.

Thanks to Justin Cattle and Alexander Frolkin for the bugreport.

(Commit squashed and updated by Ondrej Zajicek)
 2016-09-15 15:57:51 +02:00
Ondrej Zajicek (work)
84cac51a51 Nest: Keep multipath next hops sorted 2016-09-14 11:53:54 +02:00
Pavel Tvrdik
d107ef78df Whitespace fixes 2016-08-16 13:02:32 +02:00
Ondrej Filip
6887f409f0 Prepare for longer interface names - clean up of the code. 2016-07-17 14:54:52 +02:00
Ondrej Zajicek (work)
af678af0d5 Merge remote-tracking branch 'origin/master' into int-new 2016-05-12 18:03:23 +02:00
Ondrej Zajicek (work)
286e2011d2 Miscellaneous minor fixes 2016-05-12 16:04:47 +02:00
Pavel Tvrdik
8e433d6a52 Prog Doc: Complete several missing parameters 2016-05-12 15:49:44 +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
4bdf1881dc Channelize: rt_notify arg conversion table -> channel 2016-04-07 10:08:23 +02:00
Pavel Tvrdík
1bb3ecb2a5 Fix closing flushed channel 
Fix reading from freed memory.
  Free at: channel_set_state(c, CS_DOWN)
  Read at: WALK_LIST2_DELSAFE(c, n, x, tab->channels, table_node)

==00:00:00:00.261 24718==
==00:00:09:31.755 24718== Invalid read of size 8
==00:00:09:31.755 24718==    at 0x4061BA: rt_prune_table (rt-table.c:1688)
==00:00:09:31.755 24718==    by 0x405D5E: rt_event (rt-table.c:1559)
==00:00:09:31.755 24718==    by 0x45D089: ev_run (event.c:85)
==00:00:09:31.755 24718==    by 0x45D158: ev_run_list (event.c:142)
==00:00:09:31.755 24718==    by 0x462814: io_loop (io.c:2412)
==00:00:09:31.755 24718==    by 0x468712: main (main.c:833)
==00:00:09:31.755 24718==  Address 0x5601538 is 136 bytes inside a block of size 304 free'd
==00:00:09:31.755 24718==    at 0x4C29D2A: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:09:31.755 24718==    by 0x46FF3E: rfree (resource.c:166)
==00:00:09:31.755 24718==    by 0x470309: mb_free (resource.c:415)
==00:00:09:31.755 24718==    by 0x406A6B: rt_unlock_table (rt-table.c:1921)
==00:00:09:31.755 24718==    by 0x40DAE3: channel_do_down (proto.c:297)
==00:00:09:31.755 24718==    by 0x40DD46: channel_set_state (proto.c:359)
==00:00:09:31.755 24718==    by 0x4061AD: rt_prune_table (rt-table.c:1692)
==00:00:09:31.755 24718==    by 0x405D5E: rt_event (rt-table.c:1559)
==00:00:09:31.755 24718==    by 0x45D089: ev_run (event.c:85)
==00:00:09:31.755 24718==    by 0x45D158: ev_run_list (event.c:142)
==00:00:09:31.755 24718==    by 0x462814: io_loop (io.c:2412)
==00:00:09:31.755 24718==    by 0x468712: main (main.c:833)
==00:00:09:31.755 24718==  Block was alloc'd at
==00:00:09:31.755 24718==    at 0x4C28C10: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:09:31.755 24718==    by 0x470FBC: bird_xmalloc (xmalloc.c:29)
==00:00:09:31.755 24718==    by 0x4701E6: mb_alloc (resource.c:339)
==00:00:09:31.755 24718==    by 0x406C29: rt_commit (rt-table.c:1977)
==00:00:09:31.755 24718==    by 0x45C36D: config_do_commit (conf.c:269)
==00:00:09:31.755 24718==    by 0x45C545: config_commit (conf.c:361)
==00:00:09:31.755 24718==    by 0x4686F9: main (main.c:822)
==00:00:09:31.755 24718==
 2016-02-08 16:08:50 +01:00
Ondrej Zajicek (work)
f4a60a9bc4 Channels - explicit links between protocols and tables 
The patch adds support for channels, structures connecting protocols and
tables and handling most interactions between them. The documentation is
missing yet.
 2016-02-01 10:28:50 +01:00
Pavel Tvrdík
0264ccf6f4 Rewrite roa_check() for integrated BIRD 
Thanks to Ondrej Zajicek for his support with writing this code.
 2016-01-20 16:46:58 +01:00
Pavel Tvrdík
b9f5692186 Fix check in net_route() in debug mode 2016-01-07 18:24:14 +01:00
Pavel Tvrdík
de9b87f558 Add NET ROA4/6 structures 2016-01-07 18:21:31 +01:00
Ondrej Zajicek (work)
04632fd77f Follow-up work on integration 2015-12-24 15:56:04 +01:00
Ondrej Zajicek (work)
600998fcb1 Modify FIB_WALK() and FIB_ITERATE() to work with new FIB code 
Returned user data pointers have offset relative to fib_node.
 2015-12-21 20:28:44 +01:00
Jan Moskyto Matejka
7fd4143ead Integrated address print lengths 
Minor changes by Ondrej Santiago Zajicek
 2015-12-20 13:47:39 +01:00
Jan Moskyto Matejka
5e173e9f63 Stop perusing f_prefix for non-prefix-set uses 
Multiple changes by Ondrej Santiago Zajicek
 2015-12-19 23:49:47 +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
Ondrej Zajicek (work)
04ae8ddaa1 Merge branch 'master' into int-new 2015-11-25 14:24:35 +01:00
Ondrej Zajicek (work)
90f78507f4 Merge branch 'master' into rip-new 2015-11-24 15:21:11 +01:00
Ondrej Zajicek (work)
86b4e17001 Nest: Fixes bug in missing cleanup during table removal 
When a table is removed during reconfiguration, a reference was not
cleared in the old configuration, which breaks undo.
 2015-11-09 01:01:12 +01:00
Ondrej Zajicek (work)
9b9a7143c4 Conf: Fixes bug in symbol lookup during reconfiguration 
Symbol lookup by cf_find_symbol() not only did the lookup but also added
new void symbols allocated from cfg_mem linpool, which gets broken when
lookups are done outside of config parsing, which may lead to crashes
during reconfiguration.

The patch separates lookup-only cf_find_symbol() and config-modifying
cf_get_symbol(), while the later is called only during parsing. Also
new_config and cfg_mem global variables are NULLed outside of parsing.
 2015-11-09 00:42:02 +01:00
Ondrej Zajicek (work)
fe9f1a6ded Initial commit on integrated BIRD 
New data types net_addr and variants (in lib/net.h) describing
network addresses (prefix/pxlen). Modifications of FIB structures
to handle these data types and changing everything to use these
data types instead of prefix/pxlen pairs where possible.

The commit is WiP, some protocols are not yet updated (BGP, Kernel),
and the code contains some temporary scaffolding.

Comments are welcome.
 2015-11-05 12:48:52 +01:00
Ondrej Zajicek (work)
8465dccb06 Major RIP redesign 
The new RIP implementation fixes plenty of old bugs and also adds support
for many new features: ECMP support, link state support, BFD support,
configurable split horizon and more. Most options are now per-interface.
 2015-10-05 13:18:10 +02:00
Ondrej Zajicek
8d9eef1771 BGP multipath support 
Kernel option 'merge paths' allows to merge routes exported to kernel
protocol (currently BGP and static routes) to multipath routes.
 2015-06-08 02:24:08 +02:00
Ondrej Zajicek
db027a41d4 Fixes subtle bug in temporary attribute handling 
In some cases, export filter accessed attributes of a different route.
 2015-06-08 02:24:08 +02:00
Ondrej Zajicek
ca34698ca6 Fixes bug in pipe feeding when filtered routes are kept in table 2015-06-08 02:24:08 +02:00
Pavel Tvrdík
ae80a2de95 unsigned [int] -> uint 2015-06-08 02:24:08 +02:00
Ondrej Zajicek
d0e23d42de Simplify flushing process 
Related to changes from previous patch.
 2015-05-17 00:56:34 +02:00
Ondrej Zajicek
86f567e13c Fix minor issue in pipe route propagation 
In some circumstances during reconfiguration, routes propagated by pipes
to other tables may hang there even after the primary routes are removed.

There is already a workaround for this issue in the code which removes
these stale routes by flush process when source protocols are shut down.

This patch is a cleaner fix and allows to simplify the flush process
 2015-05-16 20:17:59 +02:00
Ondrej Zajicek
51762a45b3 Allows user data attached to f_trie_node structure. 
Thanks to Alexander Chernikov for the patch.
 2015-02-21 14:05:20 +01:00
Ondrej Zajicek
0da562a7cb Fixes error message in 'show route' cmd. 
Message 'Network not in table' was not reported if a network node without
any routes was found in a routing table.
 2014-11-08 23:52:42 +01:00
Ondrej Zajicek
7aa809016e Implements show route noexport option. 
Shows routes that would be exported to the protocol but are rejected by
the export filter.
 2014-10-02 12:52:50 +02:00
Ondrej Zajicek
1123e70740 Implements token bucket filter for rate limiting. 2014-10-02 12:52:50 +02:00
Ondrej Zajicek
c865cae3eb Fixes 'show route export' w.r.t. protocols with different RA_* types. 2014-04-28 17:31:03 +02:00