Commit Graph

4380 Commits

Author SHA1 Message Date
Garrett Wollman
5c2dae8edc Add code to be a bit smarter about IP routes, conditioned on the option
IN_RMX.  (Eventually this will be standard, but I just wrote the code today
and don't want to break anyone.)
1994-11-02 04:41:39 +00:00
Garrett Wollman
ac234f9399 Clean up ARP error messages: format IP addresses, explain arplookup()
failures in English.
1994-11-02 00:58:29 +00:00
Jordan K. Hubbard
0a87b23329 Latest changes from Uben.
Submitted by:	uben
1994-10-31 23:58:04 +00:00
Paul Traina
6c4b8d672e Detect old-style multicast routers and interoperate properly 1994-10-31 06:36:47 +00:00
Jordan K. Hubbard
100ba1a617 IP Firewall code from Daniel Boulet and J.S.Antsilevich
Submitted by:	danny ugen
1994-10-28 15:09:49 +00:00
Steven Wallace
1bc8a80906 Patch for proper multicast support on point-to-point links.
Submitted by:	apg@demos.su (Paul Antonov) - patch020
1994-10-25 22:13:32 +00:00
Garrett Wollman
ccc999917e Bug fixes from John Brezak. 1994-10-21 02:38:29 +00:00
Garrett Wollman
e2637b6b1c Fix some endianness and packet header bugs found in BSDi's port of this code.
(From mbone mailing-list.)
1994-10-13 22:12:42 +00:00
Garrett Wollman
10be56487a As suggested by Sally Floyd, don't add the ``small fraction of the window
size'' when doing congestion avoidance.

Submitted by:	Mark Andrews
1994-10-13 18:36:32 +00:00
Garrett Wollman
5df7296441 Fix a bug which caused panics when attempting to change just the flags of
a route.  (This still doesn't work, but it doesn't panic now.)  It looks
like there may be a number of incipient bugs in this code.

Also, get ready for the time when all IP gateway routes are cloning, which
is necessary to keep proper TCP statistics.
1994-10-11 23:16:38 +00:00
Poul-Henning Kamp
61ce519bad Cosmetics. Silence gcc -Wall. 1994-10-10 07:56:07 +00:00
Poul-Henning Kamp
ac0776aed7 Cosmetics: silences gcc -Wall. 1994-10-08 22:39:58 +00:00
Poul-Henning Kamp
623ae52e4e GCC cleanup.
Reviewed by:
Submitted by:
Obtained from:
1994-10-02 17:48:58 +00:00
Garrett Wollman
28e822955c Implement full proxy ARP, gated on option ARP_PROXYALL. This allows
a FreeBSD box to do proxy ARP as easily as most commercial routers do,
without messing around with (potentially variable) Ethernet addresses.
This code is really quite simple; I'm not at all sure why it wasn't
implemented in 4.4.

It might be worth stealing an interface flag (maybe IFF_LINK1) to use for
finer-grained control over which interfaces get proxy treatment.  For the
moment, it's all or nothing.
1994-10-01 21:50:33 +00:00
Poul-Henning Kamp
fe95e21fed Made the kernel compile even without "ether". 1994-09-16 05:47:06 +00:00
David Greenman
610ee2f9b5 Made TCPDEBUG truely optional. Based on changes I made in FreeBSD 1.1.5.
Fixed somebody's idea of a joke - about the first half of the lines in
in_proto.c were spaced over by one space.
1994-09-15 10:36:56 +00:00
Garrett Wollman
dea246f55a Add code to make multicast routing be an LKM. 1994-09-14 21:21:29 +00:00
Garrett Wollman
5e9ae478ac Shuffle some functions and variables around to make it possible for
multicast routing to be implemented as an LKM.  (There's still a bit of
work to do in this area.)
1994-09-14 03:10:15 +00:00
Garrett Wollman
01d6dc8860 Disable IPMULTICAST_VIF socket option when MROUTING is not defined,
since it doesn'tmake any sense for non-routers.
CVS:
1994-09-09 22:05:02 +00:00
Garrett Wollman
f0068c4a70 Initial get-the-easy-case-working upgrade of the multicast code
to something more recent than the ancient 1.2 release contained in
4.4.  This code has the following advantages as compared to
previous versions (culled from the README file for the SunOS release):

- True multicast delivery
- Configurable rate-limiting of forwarded multicast traffic on each
  physical interface or tunnel, using a token-bucket limiter.
- Simplistic classification of packets for prioritized dropping.
- Administrative scoping of multicast address ranges.
- Faster detection of hosts leaving groups.
- Support for multicast traceroute (code not yet available).
- Support for RSVP, the Resource Reservation Protocol.

What still needs to be done:

- The multicast forwarder needs testing.
- The multicast routing daemon needs to be ported.
- Network interface drivers need to have the `#ifdef MULTICAST' goop ripped
  out of them.
- The IGMP code should probably be bogon-tested.

Some notes about the porting process:

In some cases, the Berkeley people decided to incorporate functionality from
later releases of the multicast code, but then had to do things differently.
As a result, if you look at Deering's patches, and then look at
our code, it is not always obvious whether the patch even applies.  Let
the reader beware.

I ran ip_mroute.c through several passes of `unifdef' to get rid of
useless grot, and to permanently enable the RSVP support, which we will
include as standard.

Ported by: 	Garrett Wollman
Submitted by:	Steve Deering and Ajit Thyagarajan (among others)
1994-09-06 22:42:31 +00:00
Garrett Wollman
6a7be6e8e0 Obey RFC 793, section 3.4:
Several examples of connection initiation follow.  Although these
  examples do not show connection synchronization using data-carrying
  segments, this is perfectly legitimate, so long as the receiving TCP
  doesn't deliver the data to the user until it is clear the data is
  valid (i.e., the data must be buffered at the receiver until the
  connection reaches the ESTABLISHED state).
1994-08-26 22:27:16 +00:00
Paul Richards
707f139edb Made idempotent.
Submitted by:	Paul
1994-08-21 05:27:42 +00:00
Garrett Wollman
f23b4c91c4 Fix up some sloppy coding practices:
- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
  header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.

NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
1994-08-18 22:36:09 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
David Greenman
b53902964f fixed bug where large amounts of unidirectional UDP traffic would fill
the interface output queue and further udp packets would be fragmented
and only partially sent - keeping the output queue full and jamming the
network, but not actually getting any real work done (because you can't
send just 'part' of a udp packet - if you fragment it, you must send
the whole thing). The fix involves adding a check to make sure that the
output queue has sufficient space for all of the fragments.
1994-08-01 12:01:45 +00:00
David Greenman
b164106fa7 Fixed bug with Nagel Congestion Avoidance where a tcp connection would
stall unnecessarily - always send an ACK when a packet len of < mss is
received.
1994-08-01 12:00:25 +00:00
David Greenman
26e30fbba5 Increased tcp_send/recvspace to 16k, and added TCP_SMALLSPACE ifdef
to set it to 4k.
1994-05-29 07:42:47 +00:00
David Greenman
d4d0967e5b Added missing ntohl()'s that are needed before calling IN_MULTICAST in
a couple of places.
Submitted by:	Johannes Helander
1994-05-26 09:51:33 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00