Age | Commit message (Collapse) | Author |
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This patch adds support for source-specific IPv6 routes to BIRD core.
This is based on Dean Luga's original patch, with the review comments
addressed. SADR support is added to network address parsing in confbase.Y
and to the kernel protocol on Linux.
Currently there is no way to mix source-specific and non-source-specific
routes (i.e., SADR tables cannot be connected to non-SADR tables).
Thanks to Toke Hoiland-Jorgensen for the original patch.
Minor changes by Ondrej Santiago Zajicek.
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Internal table used for route learn was created with non-matching net
type for IPv6 kernel proto.
Thanks to Toke Hoiland-Jorgensen for the bugreport
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Thanks to Svenne Krap for the bugreport.
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A filter should log messages only if executed explicitly (e.g., during
route export or route import). When a filter is executed for technical
reasons (e.g., to establish whether a route was exported before), it
should run silently.
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Date/time output (e.g. in logs, show commands) can use %f to specify
subsecond time. By default, millisecond precision is used in output.
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Add proper support for per-nexthop onlink flag in routes to handle next
hop addresses that are not covered by interface IP ranges. Supported by
kernel and static protocols.
Thanks to Vincent Bernat for the idea.
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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.
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Allow to define static roa/flow routes without dest.
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Basic support for SAFI 4 and 128 (MPLS labeled IP and VPN) for IPv4 and
IPv6. Should work for route reflector, but does not properly handle
originating routes with next hop self.
Based on patches from Jan Matejka.
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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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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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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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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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There are several unresolved -Wmissing-field-initializers on older
versions of GCC than 5.1, all of them false positive.
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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.
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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)
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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.
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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==
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The patch adds support for channels, structures connecting protocols and
tables and handling most interactions between them. The documentation is
missing yet.
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Thanks to Ondrej Zajicek for his support with writing this code.
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