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2012-04-30Cleanup in sysdep KRT code, part 1.Ondrej Zajicek
OS-dependent functions renamed to be more consistent, prepared to merge krt-set and krt-scan headers. Name changes: struct krt_if_params -> struct kif_params struct krt_if_status -> struct kif_status struct krt_set/scan_params -> struct krt_params struct krt_set/scan_status -> struct krt_status krt_if_params_same -> kif_sys_reconfigure krt_if_copy_params -> kif_sys_copy_config krt_set/scan_params_same -> krt_sys_reconfigure krt_set/scan_copy_params -> krt_sys_copy_config krt_if_scan -> kif_do_scan krt_set_notify -> krt_do_notify krt_scan_fire -> krt_do_scan krt_if_ -> kif_sys_ krt_scan_ -> krt_sys_ krt_set_ -> krt_sys_
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.
2004-05-31Previous change was mistake.Ondrej Filip
2004-05-31*BSD port added. (Tested on FreeBSD and NetBSD)Ondrej Filip
2000-03-31Include "lib/string.h" instead of <string.h>. It should give us bzero()Martin Mares
and other non-portable functions on all systems.
2000-03-12Cleaned up debugging in kernel syncer. Netlink has still LOCAL_DEBUGMartin Mares
turned on, but after some testing I'll gag it.
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. :)
1999-04-12Removed 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.
1999-04-01Argh, the fix was wrong.Martin Mares
1999-04-01Portability fixes.Martin Mares
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.
1999-03-03Rewrote 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.
1999-02-13When shutting down, remove all routes (except for RTS_INHERIT and RTS_DEVICEMartin Mares
routes) from kernel routing tables unless the "persist" switch is set.
1999-02-13Moved sanity check of protocol state during annoucements to rte_announce.Martin Mares
1999-02-05Synced kernel interface to new interface.Martin Mares
1998-12-20die() -> bug() where appropriate.Martin Mares
1998-12-08Hopefully finished kernel syncer (krt) rewrite:Martin Mares
o Interface syncing is now a part of krt and it can have configurable parameters. Actually, the only one is scan rate now :) o Kernel routing table syncing is now synchronized with interface syncing (we need the most recent version of the interface list to prevent lots of routes to non-existent destinations from appearing). Instead of its own timer, we just check if it's route scan time after each iface list scan. o Syncing of device routes implemented. o CONFIG_AUTO_ROUTES should control syncing of automatic device routes. o Rewrote krt_remove_route() to really remove routes :) o Better diagnostics. o Fixed a couple of bugs.
1998-12-08Rewritten kernel syncer. Now uses the rta trickery I've introduced yesterdayMartin Mares
and does things "the right way". Few things are still missing (device routes etc.), I'll add them later in the evening.
1998-10-19Basic kernel routing table syncing implemented. Learning of routes installedMartin Mares
by other programs or the kernel itself is not supported yet, but it's not needed for development of other protocols.
1998-10-18Since almost every UNIX system requires different techniques for readingMartin Mares
the kernel routing table as opposed to modifying it which is approximately the same on non-netlink systems, I've split the kernel routing table routines to read and write parts. To be implemented later ;-)