Commit Graph

799 Commits

Author SHA1 Message Date
peter
15b9bcb121 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
1999-12-29 04:46:21 +00:00
msmith
fe241c2571 Make tcp_drain() actually do something. When invoked (usually as a
desperation measure in low-memory situations), walk the tcpbs and
flush the reassembly queues.

This behaviour is currently controlled by the debug.do_tcpdrain sysctl
(defaults to on).

Submitted by:	Bosko Milekic <bmilekic@dsuper.net>
Reviewed by:	wollman
1999-12-28 23:18:33 +00:00
shin
50ba589c66 IPSEC support in the kernel.
pr_input() routines prototype is also changed to support IPSEC and IPV6
chained protocol headers.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-22 19:13:38 +00:00
eivind
8befc1a2b8 Change incorrect NULLs to 0s 1999-12-21 11:14:12 +00:00
peter
9ab99bd843 The ipfilter module name wasn't exactly conventional.. 1999-12-20 15:49:38 +00:00
green
99a0254a52 M_PREPEND-related cleanups (unregisterifying struct mbuf *s). 1999-12-19 01:55:37 +00:00
jlemon
68756a0d9e Use SEQ_* macros for comparing sequence space numbers.
Reviewed by:	truckman
1999-12-14 15:43:56 +00:00
shin
fb96762b20 Always set INP_IPV4 flag for IPv4 pcb entries, because netstat needs it
to print out protocol specific pcb info.

A patch submitted by guido@gvr.org, and asmodai@wxs.nl also reported
the problem.
Thanks and sorry for your troubles.

Submitted by: guido@gvr.org
Reviewed by: shin
1999-12-13 00:39:20 +00:00
jlemon
4e4e4d62e2 According to RFC 793, a reset should be honored if the sequence number
is within the receive window.  Follow this behavior, instead of only
allowing resets at last_ack_sent.

Pointed out by:	jayanth@yahoo-inc.com
1999-12-11 04:05:52 +00:00
archie
da5ff8ce2a Fix a '&&' that should have been a '&'.
Submitted by:	Erik Salander <erik@whistle.com>
1999-12-10 20:04:53 +00:00
archie
8f028897e2 Fix several typos.
Submitted by:	Erik Salander <erik@whistle.com>
1999-12-09 21:36:34 +00:00
shin
16e714edf5 Make this buildable with MROUTING defined.
Specified by: eivind, phk
1999-12-08 11:57:36 +00:00
shin
70f0bdf681 udp IPv6 support, IPv6/IPv4 tunneling support in kernel,
packet divert at kernel for IPv6/IPv4 translater daemon

This includes queue related patch submitted by jburkhol@home.com.

Submitted by: queue related patch from jburkhol@home.com
Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-07 17:39:16 +00:00
guido
0f8152eb00 Last minute patch that I forgot to apply: check return code of iplattach() 1999-12-06 21:21:47 +00:00
guido
4cc3cbace7 Revive mlfk_ipl here. This version is slightly changed from
the old one: an unnecessary define (KLD_MODULE) has been deleted and
the initialisation of the module is  done after domaininit was called
to be sure inet is running.

Some slight changed were made to ip_auth.c and ip_state.c in order
to assure including of sys/systm.h in case we make a kld

Make sure ip_fil does nmot include osreldate in kernel mode

Remove mlfk_ipl.c from here: no sources allowed in these directories!
1999-12-06 20:36:50 +00:00
archie
a35284d781 Miscellaneous fixes/cleanups relating to ipfw and divert(4):
- Implement 'ipfw tee' (finally)
- Divert packets by calling new function divert_packet() directly instead
  of going through protosw[].
- Replace kludgey global variable 'ip_divert_port' with a function parameter
  to divert_packet()
- Replace kludgey global variable 'frag_divert_port' with a function parameter
  to ip_reass()
- style(9) fixes

Reviewed by:	julian, green
1999-12-06 00:43:07 +00:00
jlemon
e8ffbdb2ac Change the delayed ack time from 200ms to 100ms.
This results in closer behavior to earlier versions, where the fixed
200ms timer actually resulted in a delay anywhere from 1..200ms, with
the average delay being 100ms.

Pointed out by:	 dg
1999-12-02 03:25:19 +00:00
luigi
12f3e647f6 RTFREE the correct route entry in dummynet_io(). The previous
code failed in handling things like "forward" actions.

Reported-and-tested-by: Jean-Hugues ROYER jhroyer@joher.com
1999-11-26 13:37:09 +00:00
guido
8eccd0ab73 Get rid of useless osreldate include for KLD/LKM modules (sys/param.h
already carries what is needed).
This is needed for the KLD support.
1999-11-23 22:16:41 +00:00
guido
75b4f99d65 Add kernel parts of revived ipfilter (3.3.3.) 1999-11-23 21:44:59 +00:00
shin
cad2014b27 KAME netinet6 basic part(no IPsec,no V6 Multicast Forwarding, no UDP/TCP
for IPv6 yet)

With this patch, you can assigne IPv6 addr automatically, and can reply to
IPv6 ping.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-11-22 02:45:11 +00:00
peter
cbf25b6e9a Fix a warning and a potential panic if TCPDEBUG is active. (tp is
a wild pointer and used by TCPDEBUG2())
1999-11-18 08:28:24 +00:00
phk
af641e8f8d The logic for blackhole processing does not free mbufs if the
blackhole flag is set.

PR:		14958
Submitted by:	Larry Baird <lab@gta.com>
Reviewed by:	phk
1999-11-17 20:57:49 +00:00
jmb
8f04d0e871 add two more codes to ICMP error 12 (Parameter Problem).
these two are detailed in RFC1700.

Reviewed by:	Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
1999-11-15 18:27:30 +00:00
phantom
81a319a02c Restore sub-chapters order.
PR:		docs/14766
Submitted by:	Kazutoshi Kubota <kazu@iworks.co.jp>
1999-11-09 00:24:09 +00:00
jlemon
52fd977f18 Undo rev 1.10, which took out TH_FIN from the CLOSING state. This
breaks simultaneous closes.
1999-11-07 04:18:30 +00:00
shin
7efc91cadc KAME related header files additions and merges.
(only those which don't affect c source files so much)

Reviewed by: cvs-committers
Obtained from: KAME project
1999-11-05 14:41:39 +00:00
sheldonh
c66f2c8434 Append missing newline to log() message for permanent ARP modification
attempt warning, which was added in rev 1.48 .

PR:	14371
Submitted by:	sec@pi.musin.de (Stefan `Sec` Zehl)
1999-10-18 11:56:50 +00:00
peter
c5fae33605 Nuke the old antique copy of ipfilter from the tree. This is old enough
to be dangerous.  It will better serve us as a port building a KLD,
ala SKIP.

The hooks are staying although it would be better to port and use
the NetBSD pfil interface rather than have custom hooks.
1999-10-10 15:09:59 +00:00
green
f980526bf6 Implement RLIMIT_SBSIZE in the kernel. This is a per-uid sockbuf total
usage limit.
1999-10-09 20:42:17 +00:00
ru
d8acaf9b94 Properly handle the case when either the aliasing or source address of
the link are equal to the default aliasing address.  Do not zero them!

This will fix the problem with non-working links added with the source
and/or aliasing address equal to the default aliasing address, but the
default aliasing address is set later, after the link has been set up,
like both natd(8) and ppp(8) do (for objective reasons).

Reviewed by:	Brian Somers <brian@FreeBSD.org>,
		Eivind Eklund <eivind@FreeBSD.org>,
		Charles Mott <cmott@srv.net>
1999-09-27 08:40:36 +00:00
phk
e9e0512210 Remove five now unused fields from struct cdevsw. They should never
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
1999-09-25 18:24:47 +00:00
ru
fbd7c04554 ReLink() partial links in FindLinkOut() in the same manner as we do it
in FindLinkIn().  This will make TcpMonitorIn()/TcpMonitorOut() happy.

Reviewed by:	eivind
1999-09-22 13:22:26 +00:00
ru
ad9a3de54d Restore previous version of FindLinkIn().
Instead, natd(8) should be fixed to call PacketAliasSetAddress()
as part of initialization, as required by libalias(3).
1999-09-21 14:44:32 +00:00
ru
eb97f5a4de - Make partially specified permanent links (without `dst_addr' and/or
`dst_port') work for outgoing packets.

- Make permanent links whose `alias_addr' matches the primary aliasing
  address `aliasAddress' work for incoming packets.

- Typo fixes.

Reviewed by:	brian, eivind
1999-09-21 08:40:20 +00:00
brian
77904396f8 sys/errno.h -> errno.h 1999-09-21 01:26:49 +00:00
green
4395e552e2 Change so_cred's type to a ucred, not a pcred. THis makes more sense, actually.
Make a sonewconn3() which takes an extra argument (proc) so new sockets created
with sonewconn() from a user's system call get the correct credentials, not
just the parent's credentials.
1999-09-19 02:17:02 +00:00
lile
491fc39d0f Re-arrange the arp code so that fddi arps work properly. 1999-09-16 00:35:39 +00:00
des
1c6fac480c Reorder. 1999-09-14 16:40:28 +00:00
des
b94ca10a55 Fix some more disordering, as well as the description string for the
net.inet.tcp.drop_synfin sysctl, which for some mysterious reason said
"Drop TCP packets with FIN+ACK set" (instead of "...with SYN+FIN set")
1999-09-14 16:14:05 +00:00
des
19e7731a48 Add the net.inet.tcp.restrict_rst and net.inet.tcp.drop_synfin sysctl
variables, conditional on the TCP_RESTRICT_RST and TCP_DROP_SYNFIN kernel
options, respectively. See the comments in LINT for details.
1999-09-12 17:22:08 +00:00
ru
25ec57cdd2 - Optimization to the previous (rev 1.15) commit.
Requested by:	eivind
Discussed with:	eivind
Reviewed by:	brian, eivind
1999-09-10 15:27:34 +00:00
ru
55c2ca09dd Handle TCP reset sequence properly.
In the words of originator:
:If an incoming connection is initiated through natd and deny_incoming is
:not set, then a new alias_link structure is created to handle the link.
:If there is nothing listening for the incoming connection, then the kernel
:responds with a RST for the connection. However, this is not processed
:correctly in libalias/alias.c:TcpMonitor{In,Out} and
:libalias/alias_db.c:SetState{In,Out} as it thinks a connection
:has been established and therefore applies a timeout of 86400 seconds
:to the link.
:
:If many of these half-connections are initiated (during, for example, a
:port scan of the host), then many thousands of unnecessary links are
:created and the resident size of natd balloons to 20MB or more.

PR:		13639
Reviewed by:	brian
1999-09-09 13:42:51 +00:00
ru
0546c618c1 Fix typo. 1999-09-08 16:37:14 +00:00
jlemon
5eaf6dca22 Simplify, and return an error if the user attempts to set a TCP
time value which results in < 1 tick.

Suggested by: 	bde
1999-08-31 16:34:20 +00:00
jlemon
91e3e592b6 Remove conversion macros that were used during development. 1999-08-31 16:31:07 +00:00
jlemon
1e9a591905 Add a SYSCTL_PROC so that TCP timer values are now expressed to
the user in ms, while they are stored internally as ticks. Note
that there probably are rounding bogons here, especially on the
alpha.
1999-08-31 03:40:24 +00:00
jlemon
628be0515e Restructure TCP timeout handling:
- eliminate the fast/slow timeout lists for TCP and instead use a
    callout entry for each timer.
  - increase the TCP timer granularity to HZ
  - implement "bad retransmit" recovery, as presented in
    "On Estimating End-to-End Network Path Properties", by Allman and Paxson.

Submitted by:	jlemon, wollmann
1999-08-30 21:17:07 +00:00
billf
0a8146a286 Add $FreeBSD$ and spell Eklund properly.
Approved by:	brian (well, he approved adding $Id$)
1999-08-29 23:17:04 +00:00
obrien
1e6f13115f Remove extra indenting of `break' statements introducted in rev 1.89,
plus wrap some long lines from that revision.

While here, wrap some other long lines.
1999-08-29 21:59:03 +00:00