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The patch fixes several bugs introduced in previous changes, simplifies
the protocol by handing routes uniformly, introduces asynchronous route
processing to avoid issues with separate notifications for each next-hop
in ECMP routes, and makes reconfiguration faster by avoiding quadratic
complexity.
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It took too much time to analyze what's the meaning of nhu_state values
so I spent less than the same amount of time documenting it.
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Thanks to Vincent Bernat for the patch.
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Mostly capability signalling
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FreeBSD 11 changed endianity of ip_len field from host order to network
order. Also DragonFly BSD allegedly expects network order here.
Thanks to Olivier Cochard-Labbé for the patch.
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From now on, protocol static accepts VPN4 and VPN6 addressess.
With some concerns about VPN6 Route Distinguishers, I finally chose
to have the same format as for VPN4 (where it is defined by RFC 4364).
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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.
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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.
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The variable nfa is not cleaned before each loop iteration and can have
a wrong value of nfa.nhs_reuse from the previous step.
Thanks to Bernardo Figueiredo for the bugreport and analysis.
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Stubnet nodes in OSPF FIB were removed during rt_sync(), but the pointer
remained in top_hash_entry.nf, so net-summary LSA origination was
confused, reported 'LSA ID collision' and net-summary LSAs were not
originated properly.
Thanks to Naveen Chowdary Yerramneni for bugreport and analysis.
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Add flow4/flow6 network and rt-table type and operations, config grammar
and static protocol support.
Squashed flowspec branch from Pavel Tvrdik.
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Integrated and extensible BGP with generalized AFI handling,
support for IPv4+IPv6 AFI and unicast+multicast SAFI.
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Example:
bird> eval (1.2.0.0/16 max 20 as 1234).maxlen
20
Todo: Should be described in user docs
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Example:
bird> eval (1.2.0.0/16 max 20 as 1234).asn
1234
Todo: Should be described in user docs
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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";
};
}
...
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