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Commit Graph

78 Commits

Author SHA1 Message Date
Maria Matejka
df338396cd Conf: Symbol hashes for all scopes
This is a backport cherry-pick of commits
  165156beeb
  cce974e8ea

from the v3.0 branch as we need symbol hashes directly inside their
scopes for more general usage than before.

The redefinable keywords must be specified in any .Y file as follows:

  toksym: THE_KEYWORD ;
2023-06-09 13:49:31 +02:00
Ondrej Zajicek
eefb296799 Conf: Fix too early free of old configuration
The change 371eb49043 introduced early free
of old_config. Unfortunately, it did not properly check whether it is not
still in use (blocked by obstacle during reconfiguration). Fix that.

It also means that we still could have a short peak when three configs
are in use (when a new reconfig is requeste while the previous one is
still active).
2023-02-19 04:08:31 +01:00
Ondrej Zajicek
371eb49043 Conf: Free stored old config before parsing new one
BIRD keeps a previous (old) configuration for the purpose of undo. The
existing code frees it after a new configuration is successfully parsed
during reconfiguration. That causes memory usage spikes as there are
temporarily three configurations (old, current, and new). The patch
changes it to free the old one before parsing the new one (as user
already requested a new config). The disadvantage is that undo is
not available after failed reconfiguration.
2022-11-09 21:54:45 +01:00
Maria Matejka
37b6444137 Moved config-related allocations to config_pool and showing its size in memory usage 2022-11-01 16:38:24 +01:00
Ondrej Zajicek
a8a3d95be5 Nest: Improve GC strategy for rtables
Use timer (configurable as 'gc period') to schedule routing table
GC/pruning to ensure that prune is done on time but not too often.

Randomize GC timers to avoid concentration of GC events from different
tables in one loop cycle.

Fix a bug that caused minimum inter-GC interval be 5 us instead of 5 s.

Make default 'gc period' adaptive based on number of routing tables,
from 10 s for small setups to 600 s for large ones.

In marge multi-table RS setup, the patch improved time of flushing
a downed peer from 20-30 min to <2 min and removed 40s latencies.
2022-06-04 17:34:57 +02:00
Ondrej Zajicek (work)
9f24fef5e9 Conf: Fix crash during shutdown
BIRD implements shutdown by reconfiguring to fake empty configuration.
Such fake config structure is created from the last running config and
shares some data, including symbol table. This allows access to (removed)
routing tables and causes crash when 'show route' command is used during
shutdown.

Clean up symbol table, table list and links to default tables, so removed
routing tables cannot be accessed during shutdown.
2021-10-20 01:51:28 +02:00
Ondrej Zajicek (work)
e5724f71d2 sysdep: Add wrapper to get random bytes - update
Simplify the code and fix an issue with getentropy() return value.
2021-06-06 16:26:06 +02:00
Toke Høiland-Jørgensen
c48ebde5ce sysdep: Add wrapper to get random bytes
Add a wrapper function in sysdep to get random bytes, and required checks
in configure.ac to select how to do it. The configure script tries, in
order, getrandom(), getentropy() and reading from /dev/urandom.
2021-06-06 16:26:06 +02:00
Vincent Bernat
714238716e BGP: Add support for BGP hostname capability
This is an implementation of draft-walton-bgp-hostname-capability-02.
It is implemented since quite some time for FRR and in datacenter, this
gives a nice output to avoid using IP addresses.

It is disabled by default. The hostname is retrieved from uname(2) and
can be overriden with "hostname" option. The domain name is never set
nor displayed.

Minor changes by committer.
2021-02-10 16:53:57 +01:00
Ondrej Zajicek (work)
1678bc0746 Fix some failed asserts due to add_tail()
When config structures are copied due to template application,
we need to reset list node structure before calling add_tail().

Thanks to Mikael Magnusson for patches.
2020-11-24 03:42:23 +01:00
Maria Matejka
eac9250fd5 Merge branch 'master' into mq-filter-stack 2019-07-03 11:12:25 +02:00
Ondrej Zajicek (work)
8a68316eb9 Nest: Add command to request graceful restart
When 'graceful down' command is entered, protocols are shut down
with regard to graceful restart. Namely Kernel protocol does
not remove routes and BGP protocol does not send notification,
just closes the connection.
2019-06-30 21:29:24 +02:00
Ondrej Zajicek (work)
9106a750cd Add CLI command to test reconfiguration status
Based on patch from Kenth Eriksson <kenth.eriksson@infinera.com>.
2019-06-12 17:15:35 +02:00
Maria Matejka
f249d0b84c Filters: comparison of functions and filters caching 2019-02-26 16:44:24 +01:00
Ondrej Zajicek (work)
863ecfc785 The MRT protocol
The new MRT protocol is responsible for periodic RIB table dumps in the
MRT format (RFC 6396). Also the existing code for BGP4MP MRT dumps is
refactored and splitted between BGP to MRT protocols, will be more
integrated into MRT in the future.

Example:

protocol mrt {
        table "*";
        filename "%N_%F_%T.mrt";
        period 60;
}

It is partially based on the old MRT code from Pavel Tvrdik.
2018-11-20 17:45:35 +01:00
Jan Maria Matejka
d50b0bc437 Conf: Show the line:char position where the syntax error happens 2018-09-11 17:35:13 +02:00
Jan Maria Matejka
3e52d112d7 Docs: Update to v2.0 2017-12-08 16:27:19 +01:00
Ondrej Zajicek (work)
a6f79ca57f Timers: Revert temporary names and remove old timer.h 2017-12-07 13:54:59 +01:00
Ondrej Zajicek (work)
574b232427 Timers: Fix TBF and some last remains 2017-12-07 13:53:42 +01:00
Ondrej Zajicek (work)
3e405fb188 Nest: Update to new timers 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)
025525266f Timers: Replace old timers with microsecond timers
The old timer interface is still kept, but implemented by new timers. The
plan is to switch from the old inteface to the new interface, then clean
it up.
2017-12-07 13:49:27 +01:00
Ondrej Zajicek (work)
a1dc526760 Merge branch 'master' into int-new 2017-05-25 23:37:50 +02:00
Ondrej Zajicek (work)
b7761af34d Conf: Replace keyword and symbol hash table with generic hash table.
The old hash table had fixed size, which makes it slow for config files
with large number of symbols and symbol lookups. The new one is growing
according to needs.
2017-05-25 23:30:39 +02:00
Jan Moskyto Matejka
05d47bd53e Linpool: default allocation size 2017-05-16 15:34:57 +02:00
Pavel Tvrdik
1b7ddb0ea0 conf/conf.c: Revert some includes removing 2016-11-30 11:57:35 +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
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
Pavel Tvrdík
8f01879c56 cppcheck: fix va_end() functions 2016-06-27 15:07:50 +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
Pavel Tvrdík
1a7daab126 cf_error(char *msg, ...) -> cf_error(const char *msg, ...) 2016-03-10 16:07:44 +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
650b418942 Delete old ROA code 2016-01-20 16:46:58 +01:00
Jan Moskyto Matejka
9656dce72e ROA code switchoff 2015-12-20 13:04:07 +01:00
Ondrej Zajicek (work)
04ae8ddaa1 Merge branch 'master' into int-new 2015-11-25 14:24:35 +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
0c3d9dacaf Fixes file descriptor leak when parser ends with error.
Thanks to MrBr for the bugreport.
2014-03-25 14:58:00 +01:00
Ondrej Zajicek
0c791f873a BGP graceful restart support.
Also significant core protocol state changes needed for that,
global graceful restart recovery state and kernel proto support
for recovery.
2014-03-20 14:07:12 +01:00
Ondrej Zajicek
90eb5e7a8b Use ISO 8601 timeformats by default. 2013-11-25 13:44:07 +01:00
Ondrej Zajicek
79b4e12e60 Implements interface masks for choosing router id.
Router ID could be automatically determined based of subset of
ifaces/addresses specified by 'router id from' option. The patch also
does some minor changes related to router ID reconfiguration.

Thanks to Alexander V. Chernikov for most of the work.
2012-12-27 12:56:23 +01:00
Ondrej Zajicek
a92cf57dd6 Implements undo command and optional timeout for configuration
Several new configure command variants:

configure undo - undo last reconfiguration
configure timeout - configure with scheduled undo if not confirmed in timeout
configure confirm - confirm last configuration
configure check - just parse and validate config file
2012-12-26 12:40:48 +01:00
Ondrej Zajicek
4be266a983 Implements wildcard matching in config file include.
Also fixes some minor bugs in include.

Thanks Kelly Cochran for suggestion and draft patch.
2012-07-18 19:29:33 +02:00
Ondrej Zajicek
af582c4811 Route Origin Authorization basics.
- ROA tables, which are used as a basic part for RPKI.
 - Commands for examining and modifying ROA tables.
 - Filter operators based on ROA tables consistent with RFC 6483.
2012-03-18 17:32:30 +01:00
Ondrej Zajicek
a7f23f581f Implements protocol templates.
Based on the patch from Alexander V. Chernikov.
Extended to support almost all protocols.
Uses 'protocol bgp NAME from TEMPLATE { ... }' syntax.
2011-11-07 00:31:23 +01:00
Ondrej Filip
48ec367aab Configuration can include other files. 2011-09-11 21:21:47 +02:00
Ondrej Zajicek
97e46d28ff Adds check for no protocol and some minor CLI fixes.
- Adds check to deny config file with no specified protocol to prevent
  loading of empty config file.
- Moves CLI init before config parse to receive immediate error message
  when cannot open control socket.
- Fixes socket name path check and other error handling in CLI init.
2010-03-17 12:19:22 +01:00