1040 Commits

Author SHA1 Message Date
luigi
9620475aa1 Fix panic when doing keep-state and "forward".
Removed a redundant check.
Also move check for expired rules before using them.
Sorry for the whitespace changes.

Approved-by: jordan
2000-02-29 17:51:25 +00:00
ps
8c1d813591 Limit the maximum permissible TCP window size to 65535 octets if
window scaling is disabled.

PR:		kern/16914
Submitted by:	Jayanth Vijayaraghavan <jayanth@yahoo-inc.com>
Reviewed by:	wollman
Approved by:	jkh
2000-02-28 21:18:21 +00:00
alfred
83fb25d036 -it do, among other things, clear out any
+it does, amongst other things, clear out any

The old sentance didn't seem to make sense.
2000-02-28 00:31:18 +00:00
guido
8d05fe1c7c Remove option IPFILTER_KLD. In case you wanted to kldload ipfilter,
the module would only work in kernels built with this option.

Approved by:	jkh
2000-02-23 20:11:57 +00:00
peter
a5441090de Clean up some loose ends in the network code, including the X.25 and ISO
#ifdefs.  Clean out unused netisr's and leftover netisr linker set gunk.
Tested on x86 and alpha, including world.

Approved by:	jkh
2000-02-13 03:32:07 +00:00
luigi
61618b1620 Forgot one line: don't try to match flags when looking for a flow.
Approved-by: jordan
2000-02-11 13:23:14 +00:00
guido
e515e856f2 Re add rev 1.11 diffs to ip_fil.h Also discover that I did not undefine
CVS_FUBAR (which no longer exists) and thus forgot to add $FreeBSD's.
Add them.

Approved by: jkh (is part of ipfilter upgrade)
2000-02-10 21:29:11 +00:00
shin
a0c9aca93b Forbid include of soem inet6 header files from wrong place
KAME put INET6 related stuff into sys/netinet6 dir, but IPv6
  standard API(RFC2553) require following files to be under sys/netinet.
    netinet/ip6.h
    netinet/icmp6.h
  Now those header files just include each following files.
    netinet6/ip6.h
    netinet6/icmp6.h

  Also KAME has netinet6/in6.h for easy INET6 common defs
  sharing between different BSDs, but RFC2553 requires only
  netinet/in.h should be included from userland.
  So netinet/in.h also includes netinet6/in6.h inside.

  To keep apps portability, apps should not directly include
  above files from netinet6 dir.
  Ideally, all contents of,
    netinet6/ip6.h
    netinet6/icmp6.h
    netinet6/in6.h
  should be moved into
    netinet/ip6.h
    netinet/icmp6.h
    netinet/in.h
  but to avoid big changes in this stage, add some hack, that
    -Put some special macro define into those files under neitnet
    -Let files under netinet6 cause error if it is included
     from some apps, and, if the specifal macro define is not
     defined.
     (which should have been defined if files under netinet is
     included)
    -And let them print an error message which tells the
     correct name of the include file to be included.

  Also fix apps which includes invalid header files.

Approved by: jkh

Obtained from: KAME project
2000-02-10 19:33:58 +00:00
luigi
ca6bc8a505 Move definition of fw_enable from ip_fw.c to ip_input.c
so we can compile kernels without IPFIREWALL .

Reported-by: Robert Watson
Approved-by: jordan
2000-02-10 17:56:01 +00:00
luigi
7257b4f371 Whoops... forgot braces in a conditional
Revealed-by: diff with -STABLE version (the advantage of having
    multiple lines of development...)
Approved-by: jordan
2000-02-10 16:50:53 +00:00
luigi
4c77286bf0 Support the net.inet.ip.fw.enable variable, part of
the recent ipfw modifications.

Approved-by: jordan
2000-02-10 14:19:53 +00:00
luigi
0a7657b332 Support for stateful (dynamic) ipfw rules. They are very
similar to ipfilter's keep-state.

Look at the updated ipfw(8) manpage for details.

Approved-by: jordan
2000-02-10 14:17:40 +00:00
guido
2fb4ae435f Bring over ipfilter v3_3_8 kernel sources, including merging the
local modifications.
Also fix initializing fr_running in KLD case.
Rename ipl_inited to fr_runninhg in mlfk_ipl

Approved by: jkh
2000-02-09 20:56:36 +00:00
shin
fdb3a70644 Avoid kernel panic when tcp rfc1323 and rfc1644 options are enabled
at the same time.

   When rfc1323 and rfc1644 option are enabled by sysctl,
   and tcp over IPv6 is tried, kernel panic happens by the
   following check in tcp_output(), because now hdrlen is bigger
   in such case than before.

/*#ifdef DIAGNOSTIC*/
        if (max_linkhdr + hdrlen > MHLEN)
                panic("tcphdr too big");
/*#endif*/

   So change the above check to compare with MCLBYTES in #ifdef INET6 case.
   Also, allocate a mbuf cluster for the header mbuf, in that case.

Bug reported at KAME environment.
Approved by: jkh

Reviewed by: sumikawa
Obtained from: KAME project
2000-02-09 00:34:40 +00:00
luigi
b36ea4aac2 Fix a (mostly harmless) scheduling-in-the-past problem with
dummynet (already fixed in -stable, was waiting for Jordan's
approval due to the code freeze).

Reported-By: Mike Tancsa
Approved-By: Jordan
2000-02-04 16:45:33 +00:00
archie
37c6a12d32 The flags PKT_ALIAS_PUNCH_FW and PKT_ALIAS_PROXY_ONLY were both
being defined as 0x40.  Change the former to be 0x100.

Submitted by:	Erik Salander <erik@whistle.com>
Approved by:	jkh
2000-02-02 23:49:32 +00:00
brian
041ffda79a Mention what PKT_ALIAS_PROXY_ONLY does.
Prompted by: archie
2000-02-02 23:42:06 +00:00
shin
6ef0117870 Sorry in this just befor code freeze commit.
This is fix to usr.sbin/trpt and tcp_debug.[ch]
I think of putting this after 4.0 but,,,

 -There was bug that when INET6 is defined,
  IPv4 socket is not traced by trpt.

 -I received request from a person who distribute a program
  which use tcp_debug interface and print performance statistics,
  that
    -leave comptibility with old program as much as possible
    -use same interface with other OSes

  So, I talked with itojun, and synced API with netbsd IPv6 extension.

makeworld check, kernel build check(includes GENERIC) is done.

But if there happen to any problem, please let me know and
I soon backout this change.
2000-01-29 11:49:07 +00:00
imp
9d11326d86 Mitigate the stream.c attacks
o Drop all broadcast and multicast source addresses in tcp_input.
o Enable ICMP_BANDLIM in GENERIC.
o Change default to 200/s from 100/s.  This will still stop the attack, but
  is conservative enough to do this close to code freeze.

This is not the optimal patch for the problem, but is likely the least
intrusive patch that can be made for this.

Obtained from: Don Lewis and Matt Dillon.
Reviewed by: freebsd-security
2000-01-28 06:13:09 +00:00
shin
2dec7cab29 Avoid m_len and m_pkthdr.len inconsistency when changing m_len
for an mbuf whose M_PKTHDR is set.

PR: related to kern/15175
Reviewed by: archie
2000-01-25 01:26:47 +00:00
shin
3dd6ac3283 Fix the bug that IPv4 ttl is not initialized when AF_INET6 socket is used
for IPv4 communication.(IPv4 mapped IPv6 addr.)
Also removed IPv6 hoplimit initialization because it is alway done at
tcp_output.

Confirmed by: Bernd Walter <ticso@cicely5.cicely.de>
2000-01-25 01:05:18 +00:00
brian
26fcba4c5a Move the *intrq variables into net/intrq.c and unconditionally
include this in all kernels.  Declare some const *intrq_present
variables that can be checked by a module prior to using *intrq
to queue data.

Make the if_tun module capable of processing atm, ip, ip6, ipx,
natm and netatalk packets when TUNSIFHEAD is ioctl()d on.

Review not required by: freebsd-hackers
2000-01-24 20:39:02 +00:00
shin
e7b807d1e3 Fixed the problem that IPsec connection hangs when bigger data is sent.
-opt_ipsec.h was missing on some tcp files (sorry for basic mistake)
  -made buildable as above fix
  -also added some missing IPv4 mapped IPv6 addr consideration into
   ipsec4_getpolicybysock
2000-01-15 14:56:38 +00:00
shin
7620bb5bda Added missing 'else' for 'if (isipv6)' at IPv6 length setting in tcp_respond().
By this bug, IPv6 reset was not sent.
(I checked around same kind of bug, but no other found.)
2000-01-15 14:34:56 +00:00
shin
06eb80f7ab Removed wrong(unnecessary) & operators for pointer, in ipsec_hdrsiz_tcp().
This must be one of the reason why connections over IPsec hangs for
bigger packets.(which was reported on freebsd-current@freebsd.org)

But there still seems to be another bug and the problem is not yet fixed.
2000-01-15 05:39:28 +00:00
shin
ef76bd553b add forward declarations, and small cosmetic changes.
Submitted by: bde
2000-01-15 05:20:40 +00:00
guido
e66131d414 Apply patches in rev 1.2 and 1.9 that I forgot
Pointe out by:	bde
2000-01-14 19:48:42 +00:00
rgrimes
c127d0e61e Replace beforeinstall target with new variables used by .mk system.
Reviewed by:	marcel, and make world
2000-01-14 07:57:47 +00:00
guido
de7edf803a Bring over ipfilter kernel sources, including merging the local modifications. 2000-01-13 19:01:33 +00:00
shin
8813e718dc Change struct sockaddr_storage member name, because following change
is very likely to become consensus as recent ietf/ipng mailing list
discussion. Also recent KAME repository and other KAME patched BSDs
also applied it.

  s/__ss_family/ss_family/
  s/__ss_len/ss_len/

Makeworld is confirmed, and no application should be affected by this change
yet.
2000-01-13 14:52:53 +00:00
shin
c62774e01e Clear rt after RTFREE. This might have sometime caused kernel panic at rtfree()
on INET6 enabled environment.
2000-01-13 14:21:30 +00:00
shin
a42e26b36b add a comment for some possible? IPv4 option processing. 2000-01-13 05:21:05 +00:00
shin
d5ae8633fd removed incorrect ip6 length setting for IPv6 tcp reset packet. 2000-01-13 05:18:30 +00:00
ru
9eb1ed4d64 MGETHDR() does not initialize m_pkthdr.rcvif, do it here.
This fixes page fault panic observed when diverting packets
with IP options (e.g. ping -R remoteIP over natd).

PR:	kern/8596, kern/11199
2000-01-10 18:46:05 +00:00
shin
3bdc213839 tcp updates to support IPv6.
also a small patch to sys/nfs/nfs_socket.c, as max_hdr size change.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
2000-01-09 19:17:30 +00:00
shin
8438c55b6e enable IPsec over DUMMYNET again
Submitted by: luigi
Reviewed by: luigi
2000-01-09 03:06:28 +00:00
shin
3b8f501c39 prevent kernel panic which happens when either of IPSEC and IPDIVERT
is enabled.

Confirmed by: Eugene M. Kim <ab@astralblue.com>
2000-01-08 12:53:48 +00:00
luigi
dba91948d0 Add ipfw hooks for the new dummynet features.
Support masks on TCP/UDP ports.

Minor cleanup of ip_fw_chk() to avoid repeated calls to PULLUP_TO
at each rule.
2000-01-08 11:31:43 +00:00
luigi
7f185791a6 Cleanup dummynet call interface so it should now work on the Alpha
as well. Also (probably) fix a bug introduced during the IPv6 import.
2000-01-08 11:28:23 +00:00
luigi
554cd7f404 Implement per-flow queueing. Using a single pipe config rule,
now you can dynamically create rate-limited queues for different
flows using masks on dst/src IP, port and protocols.
Read the ipfw(8) manpage for details and examples.

Restructure the internals of the traffic shaper to use heaps,
so that it manages efficiently large number of queues.

Fix a bug which was present in the previous versions which could
cause, under certain unfrequent conditions, to send out very large
bursts of traffic.

All in all, this new code is much cleaner than the previous one and
should also perform better.

Work supported by Akamba Corp.
2000-01-08 11:24:46 +00:00
eivind
0ab244240a KERNEL -> _KERNEL 2000-01-05 16:25:20 +00:00
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