Commit graph

265 commits

Author SHA1 Message Date
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
Ondrej Zajicek
6eda3f135f Documentation (and minor fixes) for BGP graceful restart. 2014-03-23 01:35:33 +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
736e143fa5 Merge branch 'master' into add-path
Conflicts:

	filter/filter.c
	nest/proto.c
	nest/rt-table.c
	proto/bgp/bgp.h
	proto/bgp/config.Y
2013-11-23 11:50:34 +01:00
Ondrej Zajicek
548c329cde Adds rate limiting to some log messages. 2013-11-22 01:21:15 +01:00
Ondrej Zajicek
9135c1f0ca Fixes bug in protocol flushing and rtable pruning.
When route was propagated to another rtable through a pipe and then the
pipe was reconfigured softly in such a way that any subsequent route
updates are filtered, then the source protocol shutdown didn't clean up
the route in the second rtable which caused stale routes and potential
crashes.
2013-07-24 14:11:12 +02:00
Ondrej Zajicek
fad04c750c Fixes problems with kernel routes multiple routing tables.
Temporary dummy routes created by a kernel protocol during routing table
scan get mixed with real routes propagated from another kernel protocol
through a pipe.
2013-06-13 11:27:14 +02:00
Ondrej Filip
e667622a35 Default rounting table for 'show route export/preexport/protocol' is the one related to a respective protocol. 2013-02-25 10:39:46 +01:00
Ondrej Zajicek
36da2857bc Implements router advertisements activated by received routes.
The RAdv protocol could be configured to change its behavior based on
availability of routes, e.g., do not announce router lifetime when a
default route is not available.
2013-02-08 23:58:27 +01:00
Ondrej Zajicek
b662290f40 Separate import and receive limits.
They have different behavior w.r.t. filtered routes that are kept.
2013-01-10 13:07:33 +01:00
Ondrej Zajicek
7057752924 Fixes route tracing w.r.t. kept filtered routes. 2012-11-16 13:29:16 +01:00
Ondrej Zajicek
1555095795 Changes 'rejected' to 'filtered' in one of the last patches. 2012-11-15 01:29:01 +01:00
Ondrej Zajicek
cf98be7b67 Allows rejected routes to be kept and examined.
When 'import keep rejected' protocol option is activated, routes
rejected by the import filter are kept in the routing table, but they
are hidden and not propagated to other protocols. It is possible to
examine them using 'show route rejected'.
2012-11-10 14:26:13 +01:00
Ondrej Zajicek
094d2bdb79 Implements ADD-PATH extension for BGP.
Allows to send and receive multiple routes for one network by one BGP
session. Also contains necessary core changes to support this (routing
tables accepting several routes for one network from one protocol).
It needs some more cleanup before merging to the master branch.
2012-08-14 16:46:43 +02:00
Ondrej Zajicek
36415e4b1d Allows to redefine master table. 2012-07-20 19:56:57 +02:00
Ondrej Zajicek
abced4a914 Merge branch 'rt-accepted'
Conflicts:

	nest/config.Y
	nest/rt-table.c
	proto/bgp/bgp.c
2012-07-16 14:44:45 +02:00
Ondrej Zajicek
26822d8fe1 Finalize RA_ACCEPTED handling. 2012-07-16 01:33:02 +02:00
Ondrej Zajicek
47c447c42e Minor cleanups. 2012-05-11 12:10:21 +02:00
Ondrej Zajicek
b7f3df7905 Fixes a bug in RA_ACCEPTED handling. 2012-05-11 12:01:27 +02:00
Ondrej Zajicek
ab758e4fb2 Some fixes in route export limits. 2012-04-28 12:59:40 +02:00
Ondrej Zajicek
d494df63ac Some minor fixes. 2012-04-27 00:04:51 +02:00
Ondrej Zajicek
d9b77cc281 Implements generalized export limits.
And also fixes some minor bugs in limits.
2012-04-24 23:39:57 +02:00
Ondrej Zajicek
7d0a31deed Fixes in generalized import limits. 2012-04-21 21:05:36 +02:00
Ondrej Zajicek
ebecb6f6a1 Implements generalized import hooks.
Thanks to Alexander V. Chernikov for the original patch.
2012-04-15 15:28:29 +02:00
Ondrej Zajicek
00a09f3c36 Implement RA_ACCEPTED mode of route propagation. 2012-04-15 15:07:58 +02:00
Ondrej Zajicek
bf2abe2f51 Merge branch 'soon'
Conflicts:

	nest/proto.c
	nest/rt-table.c
2012-03-30 11:04:12 +02:00
Ondrej Zajicek
fb829de690 Fixes responsiveness for protocol shutdown.
When a protocol went down, all its routes were flushed in one step, that
may block BIRD for too much time. The patch fixes that by limiting
maximum number of routes flushed in one step.
2012-03-28 18:40:04 +02:00
Ondrej Zajicek
c0adf7e9fc Better support for multitable protocols.
The nest-protocol interaction is changed to better handle multitable
protocols. Multitable protocols now declare that by 'multitable' field,
which tells nest that a protocol handles things related to proto-rtable
interaction (table locking, announce hook adding, reconfiguration of
filters) itself.

Filters and stats are moved to announce hooks, a protocol could have
different filters and stats to different tables.

The patch is based on one from Alexander V. Chernikov, thanks.
2012-03-15 12:13:04 +01:00
Ondrej Zajicek
be4cd99a36 Implements deterministic MED handling.
Thanks to Alexander V. Chernikov for many suggestions.
2011-12-22 13:20:29 +01:00
Ondrej Zajicek
32f95476a8 Signal problems with route installation to kernel tables. 2011-10-06 22:48:49 +02:00
Ondrej Zajicek
5e9bdac28e Fixes a bug with setting preference during show route cmd.
If show route cmd was used with a filter that changed preference,
BIRD crashed.
2011-05-21 22:48:08 +02:00
Ondrej Filip
b7c4898106 Compilation was failing without OSPF or RIP protocol - FIXED. 2011-05-05 14:14:20 +02:00
Ondrej Zajicek
ab16497189 Fixes a nasty bug in OSPF.
Sending malformed network prefixes in LSAs causes OSPF to crash
just after the LSA is propagated to the other routers.
2011-03-29 01:41:46 +02:00
Ondrej Zajicek
7e95c05d88 Core multipath support. 2010-12-07 23:33:55 +01:00
Ondrej Zajicek
4ca93a5067 Fixes a one byte buffer overflow. 2010-09-08 12:08:38 +02:00
Ondrej Zajicek
2c9033afd5 Do not allow interdependent recursive routes. 2010-08-03 08:26:47 +02:00
Ondrej Zajicek
ba5e5940aa Adds igp_metric attribute. 2010-08-02 13:11:53 +02:00
Ondrej Zajicek
d1e146f2f8 Implements IGP metric comparison for BGP routes. 2010-07-31 01:04:32 +02:00
Ondrej Zajicek
1b180121a9 Use link-local addresses in recursive next hops for IPv6 BGP. 2010-07-28 11:45:35 +02:00
Ondrej Zajicek
c477f48916 Hostcache should use trie to filter relevant route changes. 2010-07-27 18:20:12 +02:00
Ondrej Zajicek
f2b76f2c45 For hostentry cache, replace FIB with a hash table using (IP, dep table) as a key. 2010-07-26 16:39:27 +02:00
Ondrej Zajicek
852b7062e3 Fixes a buffer overflow in TX code of IPv6 BGP. 2010-07-22 15:09:35 +02:00
Ondrej Zajicek
cfe34a316e Implements hostcache and recursive next hops.
Hostcache is a structure for monitoring changes in a routing table that
is used for routes with dynamic/recursive next hops. This is needed for
proper iBGP next hop handling.
2010-07-05 17:50:19 +02:00
Ondrej Zajicek
acb60628f5 Implements command that shows memory usage. 2010-06-02 22:20:40 +02:00
Ondrej Zajicek
c429d4a4ba Restrict export of device routes to the kernel protocol.
In usual configuration, such export is already restricted
with the aid of the direct protocol but there are some
races that can circumvent it. This makes it harder to
break kernel device routes. Also adds an option to
disable this restriction.
2010-04-04 15:41:31 +02:00
Ondrej Zajicek
4d9a0d1f02 Update lastmod in 'ignored' case only for RIP routes. 2010-03-24 10:42:25 +01:00
Ondrej Zajicek
ff2857b03d Many changes in (mainly) kernel syncers.
- BSD kernel syncer is now self-conscious and can learn alien routes
- important bugfix in BSD kernel syncer (crash after protocol restart)
- many minor changes and bugfixes in kernel syncers and neighbor cache
- direct protocol does not generate host and link local routes
- min_scope check is removed, all routes have SCOPE_UNIVERSE by default
- also fixes some remaining compiler warnings
2010-02-26 10:55:58 +01:00
Ondrej Zajicek
e81b440f68 Fix configure to enable warnings and fix most of them. 2010-02-21 14:34:53 +01:00
Ondrej Zajicek
dca75fd7c2 Removes phantom protocol from the pipe design.
It seems that by adding one pipe-specific exception to route
announcement code and by adding one argument to rt_notify() callback i
could completely eliminate the need for the phantom protocol instance
and therefore make the code more straightforward. It will also fix some
minor bugs (like ignoring debug flag changes from the command line).
2010-02-13 12:26:26 +01:00
Ondrej Zajicek
9db74169be Fixes protocol statistics for pipes. 2010-02-13 10:44:46 +01:00
Ondrej Zajicek
c83876265e Fixes a tricky bug in the pipe protocol.
When uncofiguring the pipe and the peer table, the peer table was
unlocked when pipe protocol state changed to down/flushing and not to
down/hungry. This leads to the removal of the peer table before
the routes from the pipe were flushed.

The fix leads to adding some pipe-specific hacks to the nest,
but this seems inevitable.
2010-02-11 22:27:06 +01:00
Ondrej Zajicek
5a56f27cd0 Adds asterisk to the primary route in 'show route' cmd.
And also fixes a minor bug.
2010-02-08 12:42:09 +01:00
Ondrej Zajicek
c37e78510f Makes date/time formats configurable. 2010-02-03 00:19:24 +01:00
Ondrej Zajicek
8a7fb8858f Finishes 'route reload' feature. 2009-12-14 01:32:37 +01:00
Ondrej Zajicek
11361a1015 Implements route re-feed.
This can be used to re-feed routes to protocol after soft change in
export filters.
2009-12-02 22:19:47 +01:00
Ondrej Zajicek
11787b8473 Fixes some problems in pipes.
For transparent pipes, loop detection works correctly now.
Pipes are now more symmetric - in both directions filtering
is done in do_rte_announce().
2009-12-02 17:26:16 +01:00
Ondrej Zajicek
e8b29bdc8d Fixes one missing log message. 2009-12-02 14:33:34 +01:00
Ondrej Zajicek
bf47fe4b2e Implements BGP route refresh. 2009-11-26 20:47:59 +01:00
Ondrej Zajicek
069bfcb53c Fixes serious bug in core related to route filtering.
If protocol announces a route, route is accepted by import filter to
routing table, and later it announces replacement of that route that is
rejected by import filter, old route remains in routing table.
2009-11-24 17:15:20 +01:00
Ondrej Zajicek
c0973621bc Fixes another bug in rte_recalculate().
Previous bugfix revealed another hidden bug here.
2009-08-11 15:49:56 +02:00
Ondrej Zajicek
024e633c16 Fixes bug that caused losing of some routes.
When update changes preferred route in such a way that
it ceased to be preferred, the new route was linked
to wrong place and lost.
2009-08-11 10:54:50 +02:00
Ondrej Zajicek
925fe2d3de Implements route statistics and fixes some minor bugs. 2009-06-04 01:22:56 +02:00
Ondrej Zajicek
c07c65d6d0 Escaped debbuging message removed. 2009-06-01 23:18:45 +02:00
Ondrej Zajicek
f98e291579 The pipe cleanup. 2009-06-01 14:07:13 +02:00
Ondrej Zajicek
23ac9e9a9e Changes pipes to transfer all routes between routing table, not just optimal routes. 2009-05-31 15:24:27 +02:00
Ondrej Zajicek
ea2ae6dd0a Change import/preimport to export/preexport to be consistent with filters. 2009-05-22 17:12:15 +02:00
Ondrej Filip
4d176e1450 'show route protocol <p>' added to CLI. 2009-05-11 02:01:11 +02:00
Ondrej Zajicek
40b65f947a Fixes bug in pipe route filtering.
Routes comming through pipe from primary to secondary table were
filtered by both EXPORT and IMPORT filters, but they should be
only filtered by EXPORT filters.
2009-03-25 19:05:52 +01:00
Ondrej Zajicek
258d0ad4ca Fixes feeding of new protocol, only preferred routes are announced. 2008-11-14 23:03:15 +01:00
Ondrej Filip
10af3676ea Grrr, committing too fast.
#include "alloca.h" -> #include "lib/alloca.h"
2004-05-31 17:16:47 +00:00
Ondrej Filip
0e6eef620d Use #include "alloca.h" 2004-05-31 17:07:05 +00:00
Ondrej Filip
0c745adc80 #ifdef ALLOCA_H 2004-05-31 13:34:20 +00:00
Martin Mares
13b75bacf7 protocol->import_control() could potentially call rte_cow() as well.
AFAIK it doesn't happen in any of our protocol, but better be sure.
2003-08-13 20:04:39 +00:00
Martin Mares
2adab6ae9c This was a potential memory leak, but not the one Feela observed.
This one could happen when an import filter of some protocol modified
the rte (so that it would be rte_cow()ed) and later rejected it.
2003-08-13 19:31:22 +00:00
Martin Mares
7d875e094b Added missing includes. 2002-11-13 08:47:06 +00:00
Martin Mares
e43ae6330e Fix %<something>I format strings. 2001-08-19 11:15:24 +00:00
Martin Mares
725270cb1d Fixes for the programmer's manual. 2000-06-08 12:37:21 +00:00
Martin Mares
58f7d004fd Fixes to the progdoc. 2000-06-07 13:25:53 +00:00
Martin Mares
2e9b24211a Spelling fixes to progdoc. 2000-06-07 12:29:08 +00:00
Martin Mares
9a8f20fc0f Better description of the route distribution process. 2000-06-02 12:41:25 +00:00
Martin Mares
3ce8c61000 Documentation on routing tables and route attributes. 2000-06-02 12:29:55 +00:00
Martin Mares
58740ed4c5 Documentation. 2000-06-01 17:12:19 +00:00
Martin Mares
2f71123158 Killed bug in merging of dynamic attributes. 2000-05-30 21:24:15 +00:00
Martin Mares
2eca3b3a9c Routing table garbage collector gets really called. 2000-05-19 19:49:33 +00:00
Martin Mares
76dfda9e74 Fixed a buglet in asynchronous feeding and increased maximum number
of routes allowed per feeding phase.
2000-05-19 10:59:47 +00:00
Martin Mares
ac5d801217 Asynchronous feeding of protocols. 2000-05-19 10:46:26 +00:00
Martin Mares
9449c91ab2 Added `show route for <prefix-or-ipa>' which looks up route leading to
given network.
2000-05-13 11:42:42 +00:00
Martin Mares
08f0290a1e Changed semantics of the rt_update hook. The attribute list we pass now
contains all attributes, not just the temporary ones. This avoids having
to merge the lists inside protocols or doing searches on both of them.

Also, do filtering of routes properly. (I'd like to avoid it, but it's
needed at least in the krt protocol.)
2000-05-13 11:00:37 +00:00
Martin Mares
0521e4f684 rt_prune: Don't kill routes from protocols in FS_FEEDING state. If debugging,
call fib_check() on the table's fib.
2000-05-08 22:33:02 +00:00
Martin Mares
33a368ad59 Implemented show route count' which is show route stats' with
exception that it doesn't print the routes themselves.
2000-05-08 14:58:00 +00:00
Martin Mares
e48dae3ed7 Stop feeding the protocol if it suddenly shuts down. 2000-05-08 14:51:26 +00:00
Martin Mares
0117d00494 Fixed `show route primary'. 2000-05-08 10:37:45 +00:00
Martin Mares
0d3070824d Don't count networks with no routes (they are not displayed at all and
will be removed during the next garbage collection pass).
2000-05-07 11:32:34 +00:00
Martin Mares
23693958aa Implemented `show route <...> stats'. 2000-05-07 11:28:59 +00:00
Martin Mares
ce1da96ee7 Added commands show route protocol <p>' and show route import <p>' which
show the routing table as exported to the protocol given resp. as returned
from its import control hook.

To get handling of filtered extended attributes right (even in the old
`show route where <filter>' command), the get_route_info hook gets an
attribute list and all protocol specific rte attributes are contained
there as temporary ones. Updated RIP to do that.

Added ea_append() which joins two ea_list's.
2000-05-06 22:57:39 +00:00
Martin Mares
0b7610985c Fixed silly bug in previous commit. 2000-05-06 21:31:41 +00:00
Martin Mares
67be5b23cd When rte_update is called for an identical route, don't announce anything.
Please implement the rte_same hook in your protocols. It should just
compare your metrics stored directly in rte, the rest is done by the core.
2000-05-06 21:21:19 +00:00
Martin Mares
93a786cb03 Removed a lot of unused variables.
Please try compiling your code with --enable-warnings to see them. (The
unused parameter warnings are usually bogus, the unused variable ones
are very useful, but gcc is unable to control them separately.)
2000-05-04 20:30:36 +00:00
Martin Mares
85a291ff30 IPv6 address classification fixes. 2000-05-02 15:21:51 +00:00
Martin Mares
8f6accb5bb Event handlers no longer return re-queue flag. Instead of using it, just
call ev_schedule() on the same handler which should work perfectly now.
2000-04-27 22:28:49 +00:00
Martin Mares
3991d84e8f Changed initialization of protocol list -- now we call proto_build() instead
of calling the protocols manually.

Implemented printing of dynamic attributes in `show route all'.

Each protocol can now register its own attribute class (protocol->attr_class,
set to EAP_xxx) and also a callback for naming and formatting of attributes.
The callback can return one of the following results:

	GA_UNKNOWN	Attribute not recognized.
	GA_NAME		Attribute name recognized and put to the buffer,
			generic code should format the value.
	GA_FULL		Both attribute name and value put to the buffer.

Please update protocols generating dynamic attributes to provide
the attr_class and formatting hook.
2000-04-01 10:19:47 +00:00
Martin Mares
8581061399 When tracing, always print incoming part of the trace before the outgoing one.
Avoid buffer overflows in `show routes' command.
2000-04-01 09:16:42 +00:00
Martin Mares
221135d6bf Include "lib/string.h" instead of <string.h>. It should give us bzero()
and other non-portable functions on all systems.
2000-03-31 23:30:21 +00:00
Martin Mares
3a6337ecb2 Use FF_FORCE_TMPATTR where appropriate. 2000-03-30 08:50:46 +00:00
Pavel Machek
0a06a9b8b3 f_run gets one more parameter to distinguish between in and out modes. 2000-03-29 09:02:00 +00:00
Martin Mares
349e21bb0b Protocol tracing: Don't dump core on filtered out routes. 2000-03-19 21:59:24 +00:00
Martin Mares
f098e072be Fixed a bunch of FIXME's by removing them :) 2000-03-12 22:53:05 +00:00
Martin Mares
6b9fa32080 Great cleanup of debug messages. LOCAL_DEBUG turned off in most modules,
several debug() calls converted to DBG().
2000-03-12 21:01:38 +00:00
Martin Mares
b0a47440e3 Oops, got <' and >' markers in trace output reversed. 2000-03-12 20:49:08 +00:00
Martin Mares
cfd46ee4c5 Added debugging of communication between protocols and routing tables.
Just ask for "debug routes" if you want to see the routes and "debug filters"
if you want even the rejected ones.
2000-03-12 20:30:53 +00:00
Martin Mares
b9626ec6ea Garbage collector events and counters are now per table and one day
they can be made configurable if it turns out to be useful.
2000-03-04 22:21:06 +00:00
Martin Mares
4c1b4e1a58 If the user has specified identical preferences for instances of different
protocols, break the tie by comparing addresses, so we keep the ordering
unambiguous.
2000-03-01 11:48:11 +00:00
Martin Mares
bf8558bc9c Converted shutdown to a kind of reconfiguration, it's no more handled
as a exception in protocol state machines. Introduced a `shutdown'
CLI command. Killed few reconfiguration bugs.
2000-01-16 17:40:26 +00:00
Martin Mares
50fe90edf3 First attempt on dynamic reconfiguration. There are still lots of bugs
and problems to solve, but the hardest part works.
2000-01-16 16:44:50 +00:00
Martin Mares
ccdc339756 Avoid touching F_MODIFY, it no longer exists. 1999-12-16 12:59:09 +00:00
Martin Mares
0da472d7e8 Except for special protocols (nowadays only the kernel syncer), don't
export host and link scope routes.
1999-12-08 14:16:13 +00:00
Martin Mares
730f2e2c8c Added dumping of routing tables (`show route'). This includes filtering. 1999-12-01 15:10:21 +00:00
Martin Mares
0d70292d88 Events now return a value. If it's non-zero, the event is re-queued
for processing in next event cycle. This can be used to prevent background
actions (hint: user commands) from hogging the CPU for too long time.
1999-10-29 12:08:49 +00:00
Martin Mares
d7975d261f Ouch, how could I write this? 1999-08-03 19:38:48 +00:00
Martin Mares
8c943173ce Allow announces of rte's to protocols in FS_FEEDING state.
Else, we would get chicken-egg problems in the table-to-table protocol.
1999-08-03 19:33:45 +00:00
Martin Mares
7de45ba4a0 Kernel route syncer supports multiple tables.
The changes are just too extensive for lazy me to list them
there, but see the comment at the top of sysdep/unix/krt.c.
The code got a bit more ifdeffy than I'd like, though.

Also fixed a bunch of FIXME's and added a couple of others. :)
1999-08-03 19:33:22 +00:00
Martin Mares
bb027be1e2 Added extra argument to rt_update hook which contains a pointer to the
temporary attribute list.
1999-05-31 18:55:35 +00:00
Martin Mares
0e02abfd57 From now we support multiple tables. The master_table variable is
definitely gone. Both rte_update() and rte_discard() have an additional
argument telling which table should they modify.

Also, rte_update() no longer walks the whole protocol list -- each table
has a list of all protocols connected to this table and having the
rt_notify hook set. Each protocol can also freely decide (by calling
proto_add_announce_hook) to connect to any other table, but it will
be probably used only by the table-to-table protocol.

The default debugging dumps now include all routing tables and also
all their connections.
1999-05-17 20:14:52 +00:00
Martin Mares
08e2d6259a Removed TOS support. This simplifies many things a lot. 1999-04-12 18:01:07 +00:00
Martin Mares
e2dc2f30ef Routing table core changes to support full route filtering:
o  Introduced rte_cow() which should be used for copying on write the
   rte's in filters. Each rte now carries a flag saying whether it's
   a real route (possessing table linkage and other insignia) or a local
   copy. This function can be expected to be fast since its fast-path
   is inlined.
o  Introduced rte_update_pool which is a linear memory pool used for
   all temporary data during rte_update. You should not reference it directly
   -- instead use a pool pointer passed to all related functions.
o  Split rte_update to three functions:

	rte_update	The front end: handles all checking, inbound
			filtering and calls rte_recalculate() for the
			final version of the route.
	rte_recalculate	Update the table according to already filtered route.
	rte_announce	Announce routing table changes to all protocols,
			passing them through export filters and so on.

   The interface has _not_ changed -- still call rte_update() and it will
   do the rest for you automagically.
o  Use new filtering semantics to be explained in a separate mail.
1999-04-05 20:25:03 +00:00
Martin Mares
c10421d3d4 More changes to the kernel syncer.
o  Now compatible with filtering.
o  Learning of kernel routes supported only on CONFIG_SELF_CONSCIOUS
   systems (on the others it's impossible to get it semantically correct).
o  Learning now stores all of its routes in a separate fib and selects
   the ones the kernel really uses for forwarding packets.
o  Better treatment of CONFIG_AUTO_ROUTES ports.
o  Lots of internal changes.
1999-04-03 13:05:18 +00:00
Martin Mares
739ebd8e82 Allow different instances of the same protocol with identical preferences. 1999-03-26 21:38:02 +00:00
Martin Mares
421838ffef rte_update: Check sanity of incoming entries. Throw out (and log) all routes
to bogus prefixes and non-local routes to host scope addresses.
1999-03-17 15:01:07 +00:00
Martin Mares
529c414953 Allow input and output filters (only accept/reject style as we didn't define
modifying filters yet) to be attached to protocol instances.
1999-03-17 14:31:26 +00:00
Martin Mares
51ad41f2fc EFence helped to find using of already free rte's in rt_prune(). 1999-03-03 20:56:33 +00:00
Martin Mares
5996da6a1d Implemented garbage collection of routing tables to delete orphaned network
nodes having no routes attached. Such cleanup must be done from event handler
since most functions manipulating the routing tables expect network entries
won't disappear from under their hands and it's also probably faster when
done asynchronously.
1999-02-13 21:29:01 +00:00
Martin Mares
0a2e9d9f56 Moved sanity check of protocol state during annoucements to rte_announce. 1999-02-13 20:19:24 +00:00
Martin Mares
1a54b1c6ac Implemented real cleanup and pruning of routing table on protocol shutdown. 1999-02-13 19:15:28 +00:00
Martin Mares
64011f898c struct proto again contains instance name (a copy of proto->cf->name). 1999-02-11 22:45:54 +00:00
Martin Mares
31b3e1bbf5 Implemented new configuration/reconfiguration interface and defined protocol
state machines. Full explanation will follow soon.
1999-02-05 21:37:34 +00:00
Martin Mares
08c69a7720 die() -> bug() where appropriate. 1998-12-20 14:27:37 +00:00
Martin Mares
e440395d7d When printing a routing table, fib_check() it. 1998-12-20 14:01:37 +00:00
Martin Mares
04925e9040 Minor rte/rta interface changes:
o  rte can now contain a pointer to both cached and uncached rta. Protocols
     which don't need their own attribute caching can now just fill-in a rta,
     link it to rte without any calls to attribute cache and call rte_update()
     which will replace rte->attrs by a cached copy.

  o  In order to support this, one of previously pad bytes in struct rta
     now holds new attribute flags (RTAF_CACHED). If you call rte_update()
     with uncached rta, you _must_ clear these flags. In other cases rta_lookup()
     sets it appropriately.

  o  Added rte_free() which is useful when you construct a rte and then the
     circumstances change and you decide not to use it for an update. (Needed
     for temporary rte's in kernel syncer...)
1998-12-07 21:59:15 +00:00
Martin Mares
dafd580ed9 Previous fix was wrong. 1998-10-26 15:24:32 +00:00