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1998-12-20Rewrote fib functions to make them insert/delete/asynchronous-walk safe.Martin Mares
This is implemented in a way similar to lib/slists.h, but it took some more effort to make rehashing not disturb the readers. We do it by just taking _highest_ k bits of ipa_hash as our hash value and sorting each box by whole ipa_hash(). Consult FIB_ITERATE_* macros in nest/route.h. Implemented fib_check() debugging function and also rewrote the rehashing algorithm to use better thresholds and not to waste time by rehashing forth and back.
1998-12-08Added source RTS_DUMMY for temporary routes. They should never appearMartin Mares
in the main table.
1998-12-07Minor rte/rta interface changes:Martin Mares
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...)
1998-12-07KRF_* flags moved to krt.h as they are internal to kernel syncer,Martin Mares
fib->pad0,pad1 renamed to x0,x1 and in case of struct net x0 is reserved for kernel syncing as well.
1998-12-07Removed protocol-specific data in rte for protocol static since noMartin Mares
such data ever existed.
1998-10-20RIP now actually talks to itself.Pavel Machek
1998-10-20Added pointer to network to RTE. The complications with passing NET separatelyMartin Mares
aren't worth 4 bytes per RTE. rte_discard and rte_dump don't need net * as parameter.
1998-10-19o FIB flags now available for FIB users.Martin Mares
o struct network: FIB flags used for kernel syncing. o struct network: `next' field deleted (historical relic).
1998-10-18Split protocol init to building of protocol list and real protocol init.Martin Mares
Added kernel route table syncer skeleton.
1998-10-18After contemplating about RIP route timeouts for a long time, I've implementedMartin Mares
protocol callbacks for route insertion and deletion from the central table. RIP should maintain its own per-protocol queue of existing routes, scan it periodically and call rte_discard() for routes that have timed out.
1998-10-17Solve chicken-and-egg problems with protocol startup. We now queue all inactiveMartin Mares
protocols and don't send route/interface updates to them and when they come up, we resend the whole route/interface tables privately. Removed the "scan interface list after protocol start" work-around.
1998-06-04FIB_WALK and friends are now slightly more friendly.Martin Mares
1998-06-01- Rewrote whole interface logic. Removed support for multiple addresses perMartin Mares
interface since it makes much trouble everywhere. Instead, we understand secondary addresses as subinterfaces. - In case interface addresses or basic flags change, we simply convert it to a down/up sequence. - Implemented the universal neighbour cache. (Just forget what did previous includes say of neighbour caching, this one is brand new.)
1998-05-24Implemented timers. Using bird_clock_t for absolute time from now...Martin Mares
1998-05-20Added routing table and routing attribute code.Martin Mares
1998-05-15Parts of routing table code. Data structure declarations should beMartin Mares
complete now.
1998-05-03Next attempt on data structures...Martin Mares
1998-04-28Changed #include <x/y> to #include "x/y" for our local includes, so thatMartin Mares
gcc -MM can be used to separate them from the system ones. Added automatic generation of dependencies.
1998-04-23Added few route attributes.Martin Mares
1998-04-22First look at data structures. More to come tomorrow...Martin Mares