Commit graph

798 commits

Author SHA1 Message Date
Martin Mares
111213f0b6 Fixed processing of !krt_capable() routes. Converted device route decisions
to the krt_capable mechanism as well.
1999-03-04 19:00:31 +00:00
Martin Mares
e16155ae4a KRT: Implemented asynchronous route / interface state notifications
(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.
1999-03-04 18:36:18 +00:00
Martin Mares
2253c9e239 Although there are still heaps of FIXME's, Netlink works.
To build BIRD with Netlink support, just configure it with

	./configure --with-sysconfig=linux-21

After it will be tested well enough, I'll probably make it a default
for 2.2 kernels (and rename it to linux-22 :)).
1999-03-04 14:23:32 +00:00
Martin Mares
f81dc8564a Converted some mb_alloc/bzero pairs to mb_allocz. 1999-03-04 11:40:05 +00:00
Martin Mares
8fe48f1377 Initialize allocated struct proto :-) 1999-03-04 11:39:24 +00:00
Martin Mares
7a2105becd Use dmalloc instead of EFence when available (dmalloc has lot of improvements
over EFence and also hopefully smaller memory overhead, but sadly it's non-free
for commercial use).

If the DMALLOC_OPTIONS environment variable is not set, switch on `reasonable'
checks by default.

Also introduced mb_allocz() for cleared mb_alloc().
1999-03-04 11:36:26 +00:00
Martin Mares
aa64578641 Netlink scans routes... 1999-03-03 20:57:29 +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
53b7a2982a Fix several things I broke today. 1999-03-03 20:55:35 +00:00
Martin Mares
0e889c5254 Added a hack forcing protocols with priority>0 to be started up
immediately. Grrr, need to find a real solution some day.
1999-03-03 20:40:51 +00:00
Martin Mares
2d14045224 Rewrote the kernel syncer. The old layering was horrible.
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.
1999-03-03 19:49:56 +00:00
Martin Mares
b2280748ad Introduced protocol priority (all 'normal' protocols should use the
default zero priority). No more "kernel syncer initialized before
device routes" problems.
1999-03-03 19:33:54 +00:00
Pavel Machek
84c7e1943f Add interface for running filters (please comment!), avoid bison warnings 1999-03-02 19:49:28 +00:00
Pavel Machek
05a845ed8e Avoid segfault 1999-03-02 19:49:22 +00:00
Martin Mares
7972248d5d Netlink module supports interface scan on startup. Working on more. 1999-03-02 18:37:02 +00:00
Martin Mares
e35ef181a4 o The if_change_too_big_p change was too high-spirited. Fixed.
o  Introduced if_find_by_index()
o  Recognizing two types of interface updates: full update (starting with
   if_start_update(), ending with if_end_update(), guaranteed to see
   all existing interfaces) and a partial update (only if_update(),
   usually due to asynchronous interface notifications).
1999-03-02 18:36:09 +00:00
Martin Mares
bcbd8cc3be Interface logic changes:
o  Introduced IF_LINK_UP flag corresponding to real link state.
o  Allowed addressless interfaces.
o  IF_UP is now automatically calculated and set iff the interface
   is administratively up, has link up and has an IP address assigned.
   It may be IF_IGNORED, though (as in case of the loopback).
o  Any changes which include up/down transition are considered small
   enough to not provoke artificial upping and downing of the interface.
o  When an interface disappears (i.e., it wasn't seen in the last scan),
   we announce this change only once.
o  IF_LOOPBACK implies IF_IGNORE.
1999-03-02 17:28:06 +00:00
Martin Mares
25287d6f7e Don't try to install static routes to disconnected neighbors. 1999-03-02 17:20:07 +00:00
Martin Mares
eab0d1e5e5 Latest changes broke out-of-tree compilation. 1999-03-02 16:39:41 +00:00
Pavel Machek
3d8ef0c9ef I just don't like files enclosed in <>. 1999-03-02 13:15:35 +00:00
Martin Mares
e834074dd4 If we are compiling with debugging enabled and libefence is available,
link it to get debugging malloc.
1999-03-01 22:42:47 +00:00
Martin Mares
b982b6db2b Implemented netlink protocol parsing functions. More to come tomorrow. 1999-03-01 22:31:27 +00:00
Martin Mares
b4b3b39e20 Added SK_MAGIC type sockets for internal use by system dependent code,
especially for netlink communication.
1999-03-01 22:30:33 +00:00
Pavel Machek
c748cdb9ec Hopefully ended translating to new interface 1999-03-01 21:18:01 +00:00
Martin Mares
bdb95a21a4 Added skeletal version of Linux netlink interface. It doesn't work yet,
but the framework is there and I'll try finish it soon.
1999-03-01 20:17:46 +00:00
Martin Mares
ea3582a6f6 Include "config.h" instead of "autoconf.h" in all Modules lists to make defines
in the static portion of configuration includes available as well.
1999-03-01 20:15:14 +00:00
Martin Mares
1b769b08c1 Renamed struct rtattr to struct rta to make things more consistent and
avoid namespace clashes with <linux/rtnetlink.h>. Other files should
not be affected since they use 'rta' directly.
1999-03-01 20:13:54 +00:00
Martin Mares
025d14cd5a Use traditional Unix route/iface interface only when CONFIG_NETLINK
is not defined. Also moved declarations of Unix iface logic to krt.h.
1999-03-01 19:05:58 +00:00
Martin Mares
12be9b8c18 Pruned the TODO list. 1999-03-01 17:51:29 +00:00
Pavel Machek
293e313ec9 More rip fixes (config data moved to struct rip_proto_config), still
not tested.
1999-02-15 13:34:43 +00:00
Martin Mares
b5fe3dc21c Cleaned up TODO file.
That's all for today, midnight gets closer.
1999-02-13 22:13:04 +00:00
Martin Mares
45090fecd9 Synced example config with new options. 1999-02-13 22:02:21 +00:00
Martin Mares
d88e99a92a Implemented static device routes.
Expect for reconfiguration issues, the static protocol is complete now.
1999-02-13 21:59:48 +00:00
Martin Mares
d1f7eab6b5 Parameter order for the proto->if_notify hook was different in the include
file and different in reality. Decided to use the same order as we do
for proto->rt_notify (i.e., first new value and second the old one).
1999-02-13 21:58:53 +00:00
Martin Mares
726141746b '#' comments in config files are equivalent to end of line, therefore
also to implicit ';'.
1999-02-13 21:34:33 +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
f4a0a64e02 Static protocol doesn't need any shutdown function. Everything gets
disposed by the core: neighbors, rte's, etc's...
1999-02-13 21:00:25 +00:00
Martin Mares
3fb4ca2ce2 Don't send any neighbor notifications to protocols being flushed. 1999-02-13 20:57:47 +00:00
Martin Mares
783f8b689a When protocols go down, prune the neighbor list. 1999-02-13 20:55:08 +00:00
Martin Mares
013a9b91fe When shutting down, remove all routes (except for RTS_INHERIT and RTS_DEVICE
routes) from kernel routing tables unless the "persist" switch is set.
1999-02-13 20:46:03 +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
f4aabcee62 Perform gracious shutdown upon receipt of SIGTERM. Finally we can
test the whole protocol shutdown code... :)
1999-02-13 20:15:36 +00:00
Martin Mares
7f3d1a0850 Squashed one bug in timing of route scans. 1999-02-13 19:57:19 +00:00
Martin Mares
4c9dd1e4b9 Synchronize signals to the main select/event/timer loop.
Parse command line options.
1999-02-13 19:43:21 +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
ab749558a2 Pass new argument to FIB_ITERATE_END. 1999-02-13 19:14:16 +00:00
Martin Mares
2569bc4073 Fixed bug in FIB_ITERATE_END: it assumed the control variable is named
"z". I've added an argument specifying name of the variable.

Renamed "again" label in FIB_ITERATE_* to "fis_again" to avoid name
clashes.
1999-02-13 19:13:51 +00:00
Martin Mares
4e9498cbb1 config->router_id works again. 1999-02-13 18:42:00 +00:00
Martin Mares
67bd949a52 Real implementation of protocol state machines. Delayed startup/shutdown
should work now. Initial feeding of protocols by interfaces/routes is
done from the event queue to prevent unwanted recursion.
1999-02-11 22:59:06 +00:00
Martin Mares
14dea0ed25 Run the event queue before writing SIGUSR dumps. 1999-02-11 22:51:15 +00:00