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path: root/sysdep/unix/krt.c
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2009-02-26Rate limit for most abundant log messagesOndrej Zajicek
2008-11-21Fixes segfault with multiple routing tables.Ondrej Zajicek
2008-10-26Bugfix for routing table breaking bug.Ondrej Zajicek
Here is a patch fixing a bug that causes breakage of a local routing table during shutdown of Bird. The problem was caused by shutdown of 'device' protocol before shutdown of 'kernel' protocol. When 'device' protocol went down, the route (with local network prefix) From different protocol (BGP or OSPF) became preferred and installed to the kernel routing table. Such routes were broken (like 192.168.1.0/24 via 192.168.1.2). I think it is also the cause of problem reported by Martin Kraus. The patch disables updating of kernel routing table during shutdown of Bird. I am not sure whether this is the best way to fix it, I would prefer to forbid 'kernel' protocol to overwrite routes with 'proto kernel'. The patch also fixes a problem that during shutdown sometimes routes created by Bird remained in the kernel routing table.
2004-06-07Used parameter can be marked as unused. :-) Thanx MJ.Ondrej Filip
2004-06-07Marked unused parameters as unused.Ondrej Filip
2004-06-05Marked unused parameters in sysdep code as such.Martin Mares
2003-08-14This probably IS the memory leak we're looking for. Alien routes weren'tMartin Mares
correctly disposed of.
2002-11-13Added missing includes.Martin Mares
2000-06-08Fixes for the programmer's manual.Martin Mares
2000-06-07Fixes to the progdoc.Martin Mares
2000-06-07Spelling fixes to progdoc.Martin Mares
2000-06-05Documented all the sysdeps (only briefly, I admit).Martin Mares
Except for Filters, RIP and OSPF, the progdocs are complete.
2000-05-16When in persist mode, don't delete routes from kernel tables even ifMartin Mares
they cease to exist in our routing tables due to protocols having shut down.
2000-05-13Adapted to new rt_notify semantics.Martin Mares
2000-05-08Don't crash when reporting deleted routes.Martin Mares
Set preferences correctly.
2000-05-04Removed a lot of unused variables.Martin Mares
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.)
2000-03-12Cleaned up debugging in kernel syncer. Netlink has still LOCAL_DEBUGMartin Mares
turned on, but after some testing I'll gag it.
2000-03-04Garbage collector events and counters are now per table and one dayMartin Mares
they can be made configurable if it turns out to be useful.
2000-01-18Killed protocol->priority. Protocol startup should be clean and hack-free now.Martin Mares
It seems everything still works (except for disable/enable/restart which hangs sometimes, but it's another story).
2000-01-18Kernel route syncer now supports dynamic reconfiguration. Also it doesn'tMartin Mares
depend on the startup counter hack now and uses a zero-time timer instead to make itself scheduled after normal protocol startup.
2000-01-17Separated `official protocol names' used in status dumps from name templatesMartin Mares
used for automatic generation of instance names. protocol->name is the official name protocol->template is the name template (usually "name%d"), should be all lowercase. Updated all protocols to define the templates, checked that their configuration grammar includes proto_name which generates the name and interns it in the symbol table.
2000-01-17Reconfiguration for device protocol.Martin Mares
2000-01-16First attempt on dynamic reconfiguration. There are still lots of bugsMartin Mares
and problems to solve, but the hardest part works.
1999-12-08Except for special protocols (nowadays only the kernel syncer), don'tMartin Mares
export host and link scope routes.
1999-08-03Kernel route syncer supports multiple tables.Martin Mares
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. :)
1999-05-31Added extra argument to rt_update hook which contains a pointer to theMartin Mares
temporary attribute list.
1999-05-17Kill remaining master_table relics in KRT code.Martin Mares
Make all protocols pass routing table to rte_update and rte_discard.
1999-04-12Removed TOS support. This simplifies many things a lot.Martin Mares
1999-04-03More changes to the kernel syncer.Martin Mares
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.
1999-03-29Don't try to delete interface routes on CONFIG_AUTO_ROUTES systems.Martin Mares
1999-03-26Moved to a much more systematic way of configuring kernel protocols.Martin Mares
o Nothing is configured automatically. You _need_ to specify the kernel syncer in config file in order to get it started. o Syncing has been split to route syncer (protocol "Kernel") and interface syncer (protocol "Device"), device routes are generated by protocol "Direct" (now can exist in multiple instances, so that it will be possible to feed different device routes to different routing tables once multiple tables get supported). See doc/bird.conf.example for a living example of these shiny features.
1999-03-04Fixed processing of !krt_capable() routes. Converted device route decisionsMartin Mares
to the krt_capable mechanism as well.
1999-03-04KRT: Implemented asynchronous route / interface state notificationsMartin Mares
(via Netlink). Tweaked kernel synchronization rules a bit. Discovered locking bug in kernel Netlink :-) Future plans: Hunt all the bugs and solve all the FIXME's.
1999-03-03Fix several things I broke today.Martin Mares
1999-03-03Rewrote the kernel syncer. The old layering was horrible.Martin Mares
The new kernel syncer is cleanly split between generic UNIX module and OS dependent submodules: - krt.c (the generic part) - krt-iface (low-level functions for interface handling) - krt-scan (low-level functions for routing table scanning) - krt-set (low-level functions for setting of kernel routes) krt-set and krt-iface are common for all BSD-like Unices, krt-scan is heavily system dependent (most Unices require /dev/kmem parsing, Linux uses /proc), Netlink substitues all three modules. We expect each UNIX port supports kernel routing table scanning, kernel interface table scanning, kernel route manipulation and possibly also asynchronous event notifications (new route, interface state change; not implemented yet) and build the KRT protocol on the top of these primitive operations.