Commit graph

442 commits

Author SHA1 Message Date
Ondrej Zajicek
15a7583787 Doc: Fix duplicated lines
Thanks to elados93 for the patch.
2019-10-08 14:20:25 +02:00
Ondrej Zajicek (work)
532471967e Doc: Update BGP mask documentation 2019-09-10 17:28:06 +02:00
Ondrej Zajicek (work)
b7d7599ce3 BGP: implement Adj-RIB-Out
The patch implements optional internal export table to a channel and
hooks it to BGP so it can be used as Adj-RIB-Out. When enabled, all
exported (post-filtered) routes are stored there. An export table can be
examined using e.g. 'show route export table bgp1.ipv4'.
2019-08-14 06:02:33 +02:00
Ondrej Zajicek (work)
70a4320bdd RAdv: Allow solicited RAs to be sent as unicast
Add option to send solicited router advertisements as unicast directly
to soliciting nodes instead of as multicast to all-nodes group.
2019-08-12 00:43:19 +02:00
Ondrej Zajicek (work)
96e4d0960c Change 'graceful down' command to 'graceful restart' and update docs
The command initiating planned graceful restart including bird shutdown
should be called 'graceful restart' instead of 'graceful down', as the
later should be reserved for graceful shutdown in style of RFC 8326.
2019-07-31 19:45:29 +02:00
Ondrej Zajicek (work)
8c703ecf73 Doc: Update documentation about VRFs and BFD 2019-07-30 19:21:06 +02:00
Vincent Bernat
e840cb9cd5 Doc: Fix typo in BGP dynamic names feature description 2019-07-09 15:30:45 +02:00
Ondrej Zajicek (work)
6c0f85d5de Doc: OSPF graceful restart options 2019-06-30 22:11:29 +02:00
Ondrej Zajicek (work)
dbbe4a783b Doc: Dynamic BGP 2019-04-30 16:16:50 +02:00
Ondrej Filip
df092aa1de Small type in doc. 2019-04-24 13:49:18 +02:00
Ondrej Zajicek (work)
23ee6b1cd6 BGP: Promiscuous ASN mode
Allow to specify just 'internal' or 'external' for remote neighbor
instead of specific ASN. In the second case that means BGP peers with
any non-local ASNs are accepted.
2019-04-03 15:54:50 +02:00
Ondrej Zajicek (work)
3a22a6e858 Doc: Route attribute cleanups 2019-03-19 19:38:32 +01:00
Ondrej Zajicek (work)
3c3605818f BGP: Mandatory option for channels
Allow to mark channel to be mandatory, and do not allow BGP sessions if
no common AFI/SAFI is established.
2019-03-19 17:44:50 +01:00
Ondrej Zajicek (work)
ee95f281f0 Doc: Add documentation for OSPF retransmit delay option
Thanks to Igor Podlesny for notification.
2019-01-26 21:02:35 +01:00
Ondrej Zajicek (work)
1c730ee761 Doc: Remove doc for already removed option 2019-01-26 20:44:37 +01:00
Maria Matějka
82b742533b Perf: Protocol to measure BIRD performance internally
This protocol is highly experimental and nobody should use it in
production. Anyway it may help you getting some insight into what eats
so much time in filter processing.
2018-12-18 15:08:31 +01:00
Ondrej Zajicek (work)
1cab2b4a7c BGP: Extend 'next hop keep' and 'next hop self' options
Extend 'next hop keep' and 'next hop self' options to have boolean values
(enabled / disabled) and also values 'ibgp'/ 'ebgp' to restrict it to
routes received from IBGP / EBGP. This allows to have it enabled by
default in some cases, matches features of other implementations, and
allows to handle some strange cases like EBGP border router with 'next
hop self' also doing IBGP route reflecting.

Change default of 'next hop keep' to enabled for route servers, and
'ibgp' for route reflectors.

Update documentation for these options.
2018-12-16 23:44:24 +01:00
Ondrej Zajicek (work)
6b5ad2066a Doc: Document log rotation feature 2018-12-12 16:54:23 +01:00
Ondrej Zajicek (work)
9e92f357be Doc: Document BGP import table option 2018-12-12 16:04:15 +01:00
Jan Maria Matejka
9a5ef043c1 Merge branch 'mq-custom' into int-new 2018-12-06 09:55:34 +01:00
Maria Matejka
265419a369 Custom route attributes
For local route marking purposes, local custom route attributes may be
defined. These attributes are seamlessly stripped after export filter to
every real protocol like Kernel, BGP or OSPF, they however pass through
pipes. We currently allow at most 256 custom attributes.

This should be much faster than currently used bgp communities
for marking routes.
2018-12-06 09:55:21 +01:00
Ondrej Zajicek (work)
3fda08e405 Unix: Change debugging options
The old behavior was that enabling debugging did many nontrivial changes
in BIRD behavior. The patch changes it that these changes are generally
independent. Compiling with --enable-debug now just enables compile-time
debug macros, but do not automatically activate debug mode (-d) nor local
mode (-l). Debug mode with output to file (-D) do not force foreground
mode (-f), therefore there is no need for backgroud option (-b), which is
removed. Also fixes a bug when the default log target in -D mode was
stderr instead of given debug file.
2018-12-04 16:55:25 +01:00
Ondrej Zajicek (work)
fc1b933304 MRT documentation 2018-11-21 16:00:22 +01:00
Ondrej Zajicek (work)
f2d8e6801e Filter: Make ifname attribute modifiable
Allow to change an interface associated with a route by setting
ifname attribute. It will also change the route to a direct one.
2018-11-05 22:03:21 +01:00
Ondrej Zajicek (work)
a043f2d794 Doc: Fix description of 'description'
Thanks to Clemens Schrimpe for the bugreport.
2018-08-24 18:58:06 +02:00
Ondrej Zajicek (work)
765f400f6b DOC: Remove pipe mode reference
Pipe mode was removed in 2.0, remove reference to it in the documentation.

Thanks to Piotr Wydrych for the bugreport.
2018-08-21 15:24:55 +02:00
Ondrej Zajicek (work)
d33cf3f4c3 Doc: Fix notes related to obsolete option
Thanks to Julien Dessaux for the report.
2018-08-07 14:46:24 +02:00
Ondrej Zajicek (work)
5bd734317c BGP: Long-lived graceful restart
The patch implements long-lived graceful restart for BGP, namely
draft-uttaro-idr-bgp-persistence-03.
2018-07-31 18:40:38 +02:00
Ondrej Zajicek (work)
feae132e0f Do not initialize route metrics in import_control hook
During route export, the receiving protocol often initialized route
metrics to default value in its import_control hook before export filter
was executed. This is inconsistent with the expectation that an export
filter would process the same route as one in the routing table and it
breaks setting these metrics before (e.g. for static routes directly in
static protocol).

The patch removes the initialization of route metrics in import_control
hook, the default values are already handled in rt_notify hook called
after export filters.

The patch also changed the behavior of OSPF to keep metrics when a route
is reannounced between OSPF instances (to be consistent with other
protocols) and the behavior when both ospf_metric1 and ospf_metric2
are specified (to have more expected behavior).
2018-05-24 14:51:05 +02:00
Ondrej Zajicek (work)
70fab17837 Babel: Add option to randomize router ID
When a Babel node restarts, it loses its sequence number, which can cause
its routes to be rejected by peers until the state is cleared out by other
nodes in the network (which can take on the order of minutes).

There are two ways to fix this: Having stable storage to keep the sequence
number across restarts, or picking a different router ID each time.

This implements the latter, by introducing a new option that will cause
BIRD to randomize a high 32 bits of router ID every time it starts up.
This avoids the problem at the cost of not having stable router IDs in
the network.

Thanks to Toke Hoiland-Jorgensen for the patch.
2018-05-03 16:55:11 +02:00
Ondrej Zajicek (work)
c408d807a3 Doc: Documentation for BGP disable after cease option 2018-04-03 17:31:45 +02:00
Ondrej Zajicek (work)
a63d20aa87 Doc: Documentation for BGP extended next hop feature
Thanks to Arvin Gan for the bugreport.
2018-04-03 16:53:58 +02:00
Ondrej Zajicek (work)
157f6c2aad Doc: Remove some superfluous slashes 2018-03-24 02:05:47 +01:00
Ondrej Zajicek (work)
a177e4dd04 Doc: Minor update 2018-03-21 16:33:08 +01:00
Ondrej Zajicek (work)
159d619caf Doc: SADR documentation 2018-03-17 22:25:06 +01:00
Ondrej Zajicek (work)
7a8ae228f9 Doc: Update BGP documentation
Thanks to Joshua McQuistan for the bugreport.
2018-03-17 17:14:38 +01:00
Jan Maria Matejka
0575c7db72 Config: Dropped the ipv4:netmask4 syntax for IPv4 prefixes. 2018-03-08 12:57:39 +01:00
Ondrej Zajicek (work)
3831b61966 BGP: Require explicit import and export policies for EBGP channels
To comply with RFC 8212 requirements.
2018-01-16 04:14:49 +01:00
Ondrej Zajicek (work)
72163bd5f3 Nest: Allow modification of channels inherited from templates
Multiple definitions of same channels are forbidden, but inherited
channel can be redefined. In such case channel options are merged.
2018-01-09 18:42:22 +01:00
Ondrej Zajicek (work)
8f8671bcde Filter: Handle undefined BGP paths as empty
The same is already done for clists. Also fixes defined() to work
properly for paths and clists.
2018-01-03 15:44:05 +01:00
Ondrej Zajicek (work)
4842eeaad3 Minor fix in documentation 2017-12-21 00:16:52 +01:00
Jan Maria Matejka
71c51aa4ab Doc: Fixed misc sgml bugs, no content change 2017-12-13 10:28:50 +01:00
Ondrej Zajicek (work)
cf3e3845c2 Doc: Documentation update 2017-12-10 22:47:38 +01:00
Ondrej Zajicek (work)
7fc55925be Several minor fixes 2017-12-10 00:55:34 +01:00
Jan Maria Matejka
3e52d112d7 Docs: Update to v2.0 2017-12-08 16:27:19 +01:00
Ondrej Zajicek (work)
830ba75e6d Merge commit '1e8721e2aeccfbc3f533e8b8abc07582cee77e9a' into int-new 2017-12-07 21:54:47 +01:00
Ondrej Zajicek (work)
46434a3cad Merge commit '7b2c5f3d2826e3175bf31b1c36056c9efc587a2b' into int-new 2017-12-07 18:35:46 +01:00
Ondrej Zajicek (work)
4ff15a75c5 Merge commit '98bb80a243b58c43453e9be69d19d0350286549c' into int-new 2017-12-07 17:41:09 +01:00
Ondrej Zajicek (work)
b47eaefe12 Babel: Revamp cost computation and run route selection when cost change
Also fix several minor bugs and add 'limit' option for k-out-of-j
link sensing strategy. Change default from 8-of-16 to 12-of-16.
Change IHU expiry factor from 1.5 to 3.5 (as in RFC 6126).
2017-12-07 13:53:42 +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)
2d7fb19c3c OSPF: Add option to disable OSPFv3-AF 2017-10-10 16:10:02 +02:00
Ondrej Zajicek (work)
7e8d6116df Doc: Fix reference 2017-10-10 14:40:22 +02:00
Michal 'vorner' Vaner
18352188ed RAdv: Documentation for more specific routes 2017-10-10 14:40:22 +02:00
Ondrej Zajicek (work)
18ea2ea759 Doc: Document 'empty' operator
Thanks to Alexander Zubkov for the notification.
2017-09-13 13:10:50 +02:00
Ondrej Zajicek (work)
943478b00f Basic VRF support
Add basic VRF (virtual routing and forwarding) support. Protocols can be
associated with VRFs, such protocols will be restricted to interfaces
assigned to the VRF (as reported by Linux kernel) and will use sockets
bound to the VRF. E.g., different multihop BGP instances can use diffent
kernel routing tables to handle BGP TCP connections.

The VRF support is preliminary, currently there are several limitations:

- Recent Linux kernels (4.11) do not handle correctly sockets bound
to interaces that are part of VRF, so most protocols other than multihop
BGP do not work. This will be fixed by future kernel versions.

- Neighbor cache ignores VRFs. Breaks config with the same prefix on
local interfaces in different VRFs. Not much problem as single hop
protocols do not work anyways.

- Olock code ignores VRFs. Breaks config with multiple BGP peers with the
same IP address in different VRFs.

- Incoming BGP connections are not dispatched according to VRFs.
Breaks config with multiple BGP peers with the same IP address in
different VRFs. Perhaps we would need some kernel API to read VRF of
incoming connection? Or probably use multiple listening sockets in
int-new branch.

- We should handle master VRF interface up/down events and perhaps
disable associated protocols when VRF goes down. Or at least disable
associated interfaces.

- Also we should check if the master iface is really VRF iface and
not some other kind of master iface.

- BFD session request dispatch should be aware of VRFs.

- Perhaps kernel protocol should read default kernel table ID from VRF
iface so it is not necessary to configure it.

- Perhaps we should have per-VRF default table.
2017-09-06 17:38:48 +02:00
Ondrej Zajicek (work)
08b6a617e8 RAdv: Some style nitpicks 2017-08-30 16:34:15 +02:00
Michal 'vorner' Vaner
ec7d6a506e RAdv: Configure how long a dead prefix is advertised 2017-08-30 16:34:15 +02:00
Ondrej Zajicek (work)
300bd0eb85 Babel: Add documentation for dual-stack operation and options
This updates the documentation for the Babel protocol to mention the fact
that it now supports dual-stack operation, and adds documentation for the
new next hop options.

Thanks to Toke Høiland-Jørgensen <toke@toke.dk> for the patch.
2017-06-09 11:56:20 +02:00
Ondrej Zajicek (work)
e919601aaf Merge master into int-new 2017-04-28 11:19:12 +02:00
Ondrej Zajicek (work)
5ca4bd5d90 Flowspec: Max tcp mask length is 12 bits 2017-04-26 17:13:45 +02:00
Ondrej Zajicek (work)
b29499996b Nest: Update of show route cmd
Some code cleanup, multiple bugfixes, allows to specify also channel
for 'show route export'. Interesting how such apparenty simple thing
like show route cmd has plenty of ugly corner cases.
2017-04-25 19:02:31 +02:00
Jan Moskyto Matejka
2faf519cf9 Client: multitable version of show route 2017-04-12 16:04:22 +02:00
Ondrej Zajicek (work)
bff21441dd Netlink: Change default kernel metric to 32
This avoids collisions with non-BIRD routes in kernel tables.
2017-03-29 16:10:00 +02:00
Ondrej Zajicek (work)
c49e4a6565 BGP: Update list of supported standards 2017-03-29 13:48:23 +02:00
Jan Moskyto Matejka
ead7b8f498 Merge branch 'nexthop-merged' into int-new 2017-03-22 14:54:00 +01:00
Jan Moskyto Matejka
61e501da89 Filter: Check whether IP is 4 or 6 2017-03-22 14:53:37 +01:00
Ondrej Zajicek (work)
a5d2a34497 Minor cleanups
BTW, 'prefices' is hypercorrection, as 'prefix' is from 'praefixum' with
plural 'praefixa'.
2017-03-14 17:25:42 +01:00
Ondrej Zajicek (work)
33b6c292c3 BGP: Allow to specify interface for regular sessions
This may be useful if multple interfaces share the same network range.

Thanks to Fritz Grimpen for the original patch.
2017-03-14 12:56:47 +01:00
Jan Moskyto Matejka
8c9986d310 Filters: VPN Route Distinguishers, Prefix Type, Docs Update 2017-03-13 13:51:20 +01:00
Ondrej Zajicek (work)
da3cf9eae3 Update OSPF and RIP protocol names and related documentation 2017-03-08 17:37:11 +01:00
Ondrej Zajicek (work)
1950a479c0 BGP: Allow exchanging LOCAL_PREF with eBGP peers
Adds option 'allow bgp_local_pref' to override the usual restriction of
LOCAL_PREF on eBGP sessions.

Thanks to Lennert Buytenhek for the patch.
2017-02-23 16:32:07 +01:00
Jan Moskyto Matejka
c609d03986 Merge branch 'int-new' into nexthop-merged 2017-02-22 11:58:04 +01:00
Ondrej Zajicek (work)
62e64905b7 Several minor fixes 2017-02-20 02:26:45 +01:00
Ondrej Zajicek (work)
9be12a7d95 Doc: Fix RIP example
Thanks to Steve Leung for the bugreport.
2017-02-19 11:25:16 +01:00
Ondrej Zajicek (work)
82f42ea091 BGP: Minor cleanups 2017-02-07 15:55:51 +01:00
Ondrej Zajicek (work)
5509e17d0c BGP: Support for AS confederations (RFC 5065) 2017-01-22 16:32:42 +01:00
Jan Moskyto Matejka
f2010f9c65 Static: Protocol rework wrt. struct nexthop changes; MPLS label support 2016-12-22 21:38:33 +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
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)
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
Pavel Tvrdík
64385aee0c DOC: Password algorithm option 2016-11-02 16:23:53 +01:00
Pavel Tvrdik
9df52a98e2 Doc: Change debug to { flag1|flag2|flag3 [, ...] } style
Thanks to Micah Anderson for bug report and Ondrej Zajicek for the idea!
2016-10-12 12:48:29 +02:00
Pavel Tvrdik
7935b9d212 Doc: Add tag for links to RFCs 2016-10-11 17:43:03 +02:00
Pavel Tvrdik
f9bd11c337 Doc: Use [table t] or [table name] 2016-10-11 17:43:03 +02:00
Pavel Tvrdik
74d76f6c38 Doc: Fix unnecessary special chars 2016-10-11 17:43:03 +02:00
Pavel Tvrdik
f5952c7343 Doc: Daemon command-line options alphabet order 2016-10-11 17:43:03 +02:00
Pavel Tvrdik
22558357d4 Doc: Add command-line options --version, --help 2016-10-11 17:43:03 +02:00
Pavel Tvrdik
b9864aa871 Doc: Add labels to all chapters and options 2016-10-11 17:43:03 +02:00
Ondrej Zajicek (work)
cec4a73ccb Doc: Documentation for large communities 2016-10-04 00:31:43 +02:00
Pavel Tvrdik
5bf35a9aee Docs: fix BFD label
BFD headline will appear in Table of Contents again.
2016-09-29 13:38:04 +02:00
Pavel Tvrdik
768d5e1058 Add !~ operator to filter grammar 2016-09-21 13:35:52 +02:00
Ondrej Zajicek (work)
6e75d0d27f KRT: Add krt_scope attribute
Add a new route attribute, krt_scope, to expose the Linux kernel route
scope. Constants from /etc/iproute2/rt_scopes (prefixed by "ips_") are
expected to be used with the attribute. Both import and export are
supported.

Also, the patch fixes device route export to the kernel, by setting link
scope automatically.
2016-09-19 12:29:56 +02:00
Ondrej Zajicek (work)
4adcb9df1b KRT: Add kernel metric protocol option
Kernel routes with different metrics do not clash with each other,
therefore using dedicated metric value is a reliable way to avoid
overwriting routes from other sources (e.g. kernel device routes).

Although kernel route metric could already be set as a route attribute by
filters, that is not consistent with the way how Linux kernel handles
route metric - not just a route attribute, but a part of a route key.
2016-09-15 14:59:06 +02:00
Ondrej Zajicek (work)
0a21c21112 Doc: Fix password ID option description
Thanks to Alexander Velkov for noticing it
2016-07-19 15:40:57 +02:00
Ondrej Zajicek (work)
12640c1499 Babel: Documentation updates
This updates the documentation to correctly mention Babel when protocols
are listed, and adds examples and route attribute documentation to the
Babel section of the docs.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
2016-07-19 12:16:51 +02:00
Ondrej Filip
a0fe1944d1 Add AS# ranges to bgpmask. 2016-06-08 16:22:44 +02:00
Ondrej Filip
90dc0f0843 Small typo in documentation example, submitted by Felix Eckhofer. 2016-06-04 12:38:06 +02:00
Pavel Tvrdik
fff7498d6a User Doc: Fix several typing error 2016-05-12 13:37:23 +02:00