Commit graph

157 commits

Author SHA1 Message Date
Ondrej Zajicek
9be9a26413 Implements proper multihop BGP.
Also does some incompatible changes to config file syntax,
like removing 'via IP' from multihop option.
2010-07-12 17:39:39 +02:00
Ondrej Zajicek
acb60628f5 Implements command that shows memory usage. 2010-06-02 22:20:40 +02:00
Ondrej Zajicek
002b642318 Fixes bug on Linux 2.4.x - kernel sync does not work until restart of kernel protocol.
Which was, actually, a bug in timers - on older kernel, monotonic timer
is missing and the other implementation started with now == 0, which
collides with usage 0 as a special value in timer->expires field.
2010-05-21 12:00:53 +02:00
Ondrej Zajicek
475977242a Handle EPIPE as a common connection close event. 2010-05-14 16:54:39 +02:00
Ondrej Zajicek
607d991424 Fixes build on newer Linux systems. 2010-04-14 15:35:08 +02:00
Ondrej Zajicek
dcc6049444 Fixes IPv6 build on older systems. 2010-04-14 14:46:21 +02:00
Ondrej Zajicek
646b24d932 Minor changes. 2010-04-08 17:45:50 +02:00
Ondrej Zajicek
46a82e9c2c Fixes missing header. 2010-04-03 10:45:21 +02:00
Ondrej Zajicek
e7b09e4ab9 Use SO_BINDTODEVICE also in Linux/IPv6. 2010-04-02 16:11:46 +02:00
Ondrej Zajicek
bed417288e Minor fixes to previous patches. 2010-04-02 11:31:20 +02:00
Ondrej Zajicek
eb0f129fce Merge branch 'socket2' into new 2010-03-26 18:53:31 +01:00
Ondrej Zajicek
97e46d28ff Adds check for no protocol and some minor CLI fixes.
- Adds check to deny config file with no specified protocol to prevent
  loading of empty config file.
- Moves CLI init before config parse to receive immediate error message
  when cannot open control socket.
- Fixes socket name path check and other error handling in CLI init.
2010-03-17 12:19:22 +01:00
Ondrej Zajicek
54305181f6 Merge branch 'new' into socket2 2010-03-11 18:55:59 +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
2af25a971a Fixes a crash caused by missing error hook on BGP listening socket.
Error happened when too many BGP connections arrived in one moment
(ECONNABORTED).
2010-02-11 11:12:58 +01:00
Ondrej Zajicek
353729f513 Temporary OSPF commit - socket changes. 2010-02-11 10:23:35 +01:00
Ondrej Zajicek
c37e78510f Makes date/time formats configurable. 2010-02-03 00:19:24 +01:00
Ondrej Zajicek
861f223a53 BSD compatibility fix. 2010-01-06 23:20:43 +01:00
Ondrej Zajicek
cf31112f0d Implements MRTdump feature. 2010-01-03 12:17:52 +01:00
Ondrej Zajicek
4ac7c8341c Use IPv6 checksums in OSPFv3. 2009-11-09 23:22:53 +01:00
Ondrej Zajicek
3f22fa9e74 Merge branch 'dev' into ospf3 2009-11-09 22:54:39 +01:00
Ondrej Zajicek
ea89da381f Workaround for stupid callback scheduler.
There is no reak callback scheduler and previous behavior causes
bad things during hard congestion (like BGP hold timeouts).

Smart callback scheduler is still missing, but main loop was
changed such that it first processes all tx callbacks (which
are fast enough) (but max 4* per socket) + rx callbacks for CLI,
and in the second phase it processes one rx callback per
socket up to four sockets (as rx callback can be slow when
there are too many protocols, because route redistribution
is done synchronously inside rx callback). If there is event
callback ready, second phase is skipped in 90% of iterations
(to speed up CLI during congestion).
2009-10-11 18:56:16 +02:00
Ondrej Zajicek
daeeb8e982 Clear memory allocated by ralloc().
This also fixes bug that timer->recurrent was not cleared
in tm_new() and unexpected recurrence of startup timer
in BGP confused state machine and caused crash.
2009-09-04 11:24:08 +02:00
Ondrej Zajicek
f9c799a00e Temporary OSPFv3 development commit (changing multicast support). 2009-09-04 11:06:51 +02:00
Ondrej Zajicek
061ab802a6 Temporary OSPFv3 development commit 2009-08-27 18:25:46 +02:00
Ondrej Zajicek
2d785e8d6a Fixes bug on TCP passive socket binding on BSD.
BGP on BSD was bound to random port. I am surprised that
nobody noticed it already.
2009-06-26 13:33:41 +02:00
Ondrej Zajicek
1876e18d32 Minor bugfix. 2009-06-25 15:44:43 +02:00
Ondrej Zajicek
4323099da9 Fixes bug in scheduling of callback by main loop.
If other side of a socket is sending data faster than
BIRD is processing, BIRD does not schedule any other
callbacks (events, timers, rx/tx callbacks).
2009-06-20 00:59:32 +02:00
Ondrej Zajicek
789772ed45 Implements option that changes BGP listening socket parametres. 2009-06-18 19:20:07 +02:00
Ondrej Filip
2b70f0742e Linux specific TCP-MD5 handling moved to sysdep/linux/sysio.h
FreeBSD coded added. BSD cannot set BGP passwords itself.
This has to be done by external command.
2009-05-04 18:17:46 +02:00
Ondrej Zajicek
35164c5017 rx_hook may be cleaned in some callback so we check it before
executing sk_read().
2008-12-12 17:48:03 +01:00
Ondrej Zajicek
fd91ae3325 Fix problem with local time changes. 2008-11-05 22:36:49 +01:00
Ondrej Zajicek
1389f3699f Fixes bugs in IPv6 code caused by recent commits. 2008-11-05 21:39:04 +01:00
Ondrej Zajicek
a39b165e45 Multihop BGP was completely broken, because listening socket has always
ttl 1.
2008-11-01 16:58:40 +01:00
Ondrej Zajicek
a98fbf0f12 Merge branch 'dev' into out 2008-10-27 00:20:22 +01:00
Ondrej Zajicek
68fa95cfec Check of socket name length 2008-10-26 23:55:38 +01:00
Ondrej Zajicek
d51aa28190 Implementation of MD5 authentication of BGP sessions. 2008-10-26 22:42:39 +01:00
Ondrej Filip
97c6fa02e0 Previous patch reverted. :-( 2008-08-25 12:06:20 +00:00
Ondrej Filip
030e3a79cb Buffer overflow fix. 2008-08-25 11:57:46 +00:00
Ondrej Filip
c025b85273 Real write is only in sk_maybe_write. Previous change partially reverted.
Thank you MJ.
2005-02-14 23:15:04 +00:00
Ondrej Filip
7c49f71559 Added s->err_hook wrapper that empties socket. 2005-02-14 21:28:51 +00:00
Ondrej Filip
0d3effcf8c Time added in password management. 2005-02-12 22:27:55 +00:00
Ondrej Filip
09e4117cc1 sk_write bugfix for BSD. 2004-06-18 12:54:53 +00:00
Ondrej Filip
41c8976e29 Test old instance of BIRD. 2004-06-06 17:05:25 +00:00
Martin Mares
4da25acb0a Cleaned up sk_reallocate() and friends.
Also, removed the `if (s)' test, because I believe that as the whole
socket interface doesn't accent NULL pointers, sk_reallocate() shouldn't
be the only exception.
2004-06-05 08:56:43 +00:00
Ondrej Filip
e7ef86a58c OSPF is ready for changing MTU. 2004-06-04 18:51:29 +00:00
Ondrej Filip
7d72aadb8a CONFIG_SKIP_MC_BIND added.
BSD hates it, Linux needs it.
2004-06-03 08:18:14 +00:00
Ondrej Filip
b613b9928b #ifdef CONFIG_UNIX_DONTROUTE added. 2004-06-01 10:32:02 +00:00
Martin Mares
38a608c55a Rewritten the I/O loop. All socket operations are now safe, meaning that
you can delete the socket from anywhere in the hooks and nothing should break.
Also, the receive/transmit buffers are now regular xmalloc()'ed buffers,
not separate resources which would need shuffling around between pools.

sk_close() is gone, use rfree() instead.
2004-05-31 21:48:19 +00:00
Ondrej Filip
b1a1fabac7 *BSD port added. (Tested on FreeBSD and NetBSD) 2004-05-31 13:25:00 +00:00
Martin Mares
01b776e117 Fixed <time.h> vs. <sys/time.h> problems. 2001-03-06 13:40:39 +00:00
Martin Mares
0b3bf4b1d8 Use SUN_LEN() for length of UNIX domain addresses. This should fix problems
with connection to clients on libc5 machines.
2000-06-09 07:30:22 +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
525fa2c1f0 Documented sockets, events and timers. 2000-06-05 12:19:12 +00:00
Martin Mares
10304bed43 Split random number functions off io.c, so that they can be documented
separately.
2000-06-05 11:46:40 +00:00
Martin Mares
b594ad2386 tm_format_reltime() works with both past and future timestamps. 2000-06-01 15:13:23 +00:00
Martin Mares
c304392e65 Some less socket error messages. 2000-05-08 12:37:39 +00:00
Martin Mares
9cbf43eb8a Don't report refused connections. 2000-05-08 12:09:10 +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
f75e3bbc01 Fixed a couple of nasty CLI bugs which were triggered on long or multi-part
outputs. It took a whole evening to hunt them down, but now the CLI seems
to work fine.

Now I run three BGP connections with several thousand routes!
2000-04-27 22:35:08 +00:00
Martin Mares
e1ddd99377 Changed handling of incoming connections, so that we can send data
from the send hook without worrying about existence of socket buffers.

Also, don't forget to copy peer addresses.
2000-04-26 13:26:11 +00:00
Martin Mares
0cadd5f531 Removed several FIXME's. 2000-04-26 12:33:37 +00:00
Martin Mares
00c0c18aea Allow sk_close(NULL). 2000-04-25 23:07:47 +00:00
Martin Mares
f380aa60fa IPv6 compiles with glibc 2.1. 2000-04-20 23:05:41 +00:00
Martin Mares
a37410cbdd Use bsprintf() instead of sprintf(). 2000-03-31 23:33:03 +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
320f417357 Defined sk_close() which closes the socket safely even if called from
socket hook. Replaces the SK_DELETED hack.

Squashed a couple of bugs in handling of TCP sockets.
2000-03-30 10:43:37 +00:00
Martin Mares
1cf716f075 Handle EINPROGRESS properly.
Set IP_DONTROUTE sockopt only if sk->ttl == 1.
2000-03-20 21:49:21 +00:00
Martin Mares
f098e072be Fixed a bunch of FIXME's by removing them :) 2000-03-12 22:53:05 +00:00
Martin Mares
7a88832e78 Added tm_format_datetime(). 2000-03-12 22:43:13 +00:00
Martin Mares
a2867cd957 Better order of includes.
set_inaddr() moved to sysio.h.
1999-12-16 13:14:02 +00:00
Martin Mares
67ece6df42 Tried to clean up multicast handling. Now we don't try to guess
multicast abilities depending on definedness of symbols and use hard-wired
system-dependent configuration defines instead.

Please test whereever you can.
1999-12-16 13:06:13 +00:00
Martin Mares
30bc402ebb Temporary work-arounds for multicast problems. Needs further investigation. 1999-12-08 15:12:54 +00:00
Martin Mares
f78056fb2c Allow logging to stderr as well. 1999-12-06 13:51:04 +00:00
Martin Mares
a9c986f981 Added tracked_fopen() which is a fopen registered in resource database.
Will be used for log files.
1999-12-06 13:43:47 +00:00
Martin Mares
afa8937ac8 Added tm_format_reltime() for formatting of relative time quantities. 1999-12-01 11:59:00 +00:00
Martin Mares
487d1afa52 Moved TIME_INFINITY to timer.h, so that it's publicly available. 1999-11-30 14:01:39 +00:00
Martin Mares
30770df2ab If the main event queue is not empty, call select() with zero timeout, so
that the events are ran again after the FD's are checked. This allows us
to schedule I/O checks between processing of user commands.
1999-11-17 12:04:24 +00:00
Martin Mares
b93abffae4 Implemented unix-domain sockets. 1999-10-29 12:09:29 +00:00
Martin Mares
f782b72c53 Failure to set socket TOS is not a fatal error. 1999-10-02 11:06:44 +00:00
Martin Mares
f651941402 Added a function for generating 32-bit random numbers. 1999-08-17 20:47:40 +00:00
Martin Mares
4f22c98185 Support for IPv6 sockets. How nice one doesn't have to ifdef around
ten years of API evolution :-)
1999-08-03 19:36:51 +00:00
Martin Mares
dce267832a Basic support for IPv6. The system-dependent part doesn't work yet,
but the core routines are there and seem to be working.

   o  lib/ipv6.[ch] written
   o  Lexical analyser recognizes IPv6 addresses and when in IPv6
      mode, treats pure IPv4 addresses as router IDs.
   o  Router ID must be configured manually on IPv6 systems.
   o  Added SCOPE_ORGANIZATION for org-scoped IPv6 multicasts.
   o  Fixed few places where ipa_(hton|ntoh) was called as a function
      returning converted address.
1999-08-03 19:36:06 +00:00
Martin Mares
913f7dc9f2 Added functions for parsing and formatting of dates. 1999-08-03 19:29:27 +00:00
Martin Mares
bd7f1081f2 Grrr, the "obvious fix" to multicasting code from yesterday was
fundamentally wrong. Reversed.
1999-06-01 15:31:43 +00:00
Martin Mares
c7208da0b7 Fix potential multicasting bug. 1999-05-31 20:28:46 +00:00
Martin Mares
9a158361da I rewrote the interface handling code, so that it supports multiple
addresses per interface (needed for example for IPv6 support).

Visible changes:

o  struct iface now contains a list of all interface addresses (represented
   by struct ifa), iface->addr points to the primary address (if any).
o  Interface has IF_UP set iff it's up and it has a primary address.
o  IF_UP is now independent on IF_IGNORED (i.e., you need to test IF_IGNORED
   in the protocols; I've added this, but please check).
o  The if_notify_change hook has been simplified (only one interface pointer
   etc.).
o  Introduced a ifa_notify_change hook. (For now, only the Direct protocol
   does use it -- it's wise to just listen to device routes in all other
   protocols.)
o  Removed IF_CHANGE_FLAGS notifier flag (it was meaningless anyway).
o  Updated all the code except netlink (I'll look at it tomorrow) to match
   the new semantics (please look at your code to ensure I did it right).

Things to fix:

o  Netlink.
o  Make krt-iface interpret "eth0:1"-type aliases as secondary addresses.
1999-05-06 21:38:11 +00:00
Martin Mares
4c5e5e3a1c Multicasts once again: When using SO_BINDTODEVICE, don't specify IP address
of the interface.
1999-04-14 12:29:47 +00:00
Martin Mares
1b50a1e4be Next attempt to get SO_BINDTODEVICE work :) 1999-04-14 11:39:07 +00:00
Martin Mares
36154beb70 Use SO_BINDTODEVICE if we're using old multicast API (i.e., struct ip_mreq
and not ip_mreqn). This should get multicasts on unnumbered PtP links work.
1999-04-14 11:21:02 +00:00
Martin Mares
61fb537c62 Use struct ip_mreqn' instead of struct ip_mreq' for multicast
operations on 2.1/2.2 kernels. This allows passing of real interface
indexes instead of referencing interfaces by their IP addresses which
fails badly in presence of unnumbered interfaces.

Unfortunately, this structure is not visible with glibc 2.0 as it provides
its own networking headers :-(  Both libc5 and glibc 2.1 should be OK.
1999-04-12 15:27:56 +00:00
Martin Mares
5a99ade413 Fixed a couple of bugs in handling of multicast sockets.
See comments in lib/socket.h for a detailed guide on how to use them.
1999-04-12 14:57:46 +00:00
Martin Mares
abae6e9cd3 First few FreeBSD portability fixes. 1999-04-01 15:33:52 +00:00
Martin Mares
7e5f5ffdda Moved to a much more systematic way of configuring kernel protocols.
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.
1999-03-26 21:44:38 +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
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
4c9dd1e4b9 Synchronize signals to the main select/event/timer loop.
Parse command line options.
1999-02-13 19:43:21 +00:00
Martin Mares
e8f73195fa Added simple event scheduling system to avoid recursive calling
of various callbacks.

Events are just another resource type objects (thus automatically freed
and unlinked when the protocol using them shuts down). Each event can
be linked in at most one event list. For most purposes, just use the
global event list handled by the following functions:

	ev_schedule	Schedule event to be called at the next event
			scheduling point. If the event was already
			scheduled, it's just re-linked to the end of the list.
	ev_postpone	Postpone an already scheduled event, so that it
			won't get called. Postponed events can be scheduled
			again by ev_schedule().

You can also create custom event lists to build your own synchronization
primitives. Just use:

	ev_init_list	to initialize an event list
	ev_enqueue	to schedule event on specified event list
	ev_postpone	works as well for custom lists
	ev_run_list	to run all events on your custom list
	ev_run		to run a specific event and dequeue it
1999-02-11 21:18:26 +00:00