Commit Graph

606 Commits

Author SHA1 Message Date
Doug Rabson
e0dd9c3ed8 Dike out some obsolete defines which referenced ih_next and ih_prev from
struct ipovly (they don't exist anymore because they don't work when
pointers are 64bit).
1998-09-26 14:26:59 +00:00
Bill Fenner
52b65dbe85 Fix the bind security fix introduced in rev 1.38 to work with multicast:
- Don't bother checking for conflicting sockets if we're binding to a
  multicast address.
- Don't return an error if we're binding to INADDR_ANY, the conflicting
  socket is bound to INADDR_ANY, and the conflicting socket has SO_REUSEPORT
  set.

PR:		kern/7713
1998-09-17 18:42:16 +00:00
Bill Fenner
dd9b6dde89 Prevent modification of permanent ARP entries (PR kern/7649)
Ignore ARP replies from the wrong interface (discussion on mailing list)
Add interface name to a couple of error messages
1998-09-17 00:04:21 +00:00
Joseph Koshy
61a4defd54 Turn off replies to ICMP echo requests for broadcast and multicast
addresses by default.

Add a knob "icmp_bmcastecho" to "rc.network" to allow this
behaviour to be controlled from "rc.conf".

Document the controlling sysctl variable "net.inet.icmp.bmcastecho"
in sysctl(3).

Reviewed by: dg, jkh
Reminded on -hackers by: Steinar Haug <sthaug@nethelp.no>
1998-09-15 10:49:03 +00:00
Luigi Rizzo
2655eb498f Bring in new files for dummynet support 1998-09-12 22:03:21 +00:00
Garrett Wollman
80ab7c0ed8 Fix RST validation.
PR:		7892
Submitted by:	Don.Lewis@tsc.tdk.com
1998-09-11 16:04:03 +00:00
Doug Rabson
945aa40deb Ensure that m_nextpkt is set to NULL after reassembling fragments. 1998-09-10 08:56:40 +00:00
Poul-Henning Kamp
19ddafa3b3 RFC 1644 has the status "Experimental Protocol", which means:
4.1.4.  Experimental Protocol

      A system should not implement an experimental protocol unless it
      is participating in the experiment and has coordinated its use of
      the protocol with the developer of the protocol.

Pointed out by:	Steinar Haug <sthaug@nethelp.no>
1998-09-06 08:17:35 +00:00
Poul-Henning Kamp
67a895f650 Widen and change the layout of the IPFW structures flag element.
This will allow us to add dummynet to 3.0

Recompile /sbin/ipfw AND your kernel.
1998-09-02 19:14:01 +00:00
Garrett Wollman
db028362a0 Properly fragment multicast packets.
PR: 7802
Submitted by:	Steve McCanne <mccanne@cs.berkeley.edu>
1998-09-02 15:11:14 +00:00
Brian Somers
7100135f12 Remove OpenBSD build support - let the Makefile vary per
OS rather than making it a mess and potentially screwing
up cross builds.
Suggested by: bde

Add Id keyword.
1998-08-31 12:14:30 +00:00
Brian Somers
e8ede338eb Add OpenBSD build support 1998-08-30 23:53:25 +00:00
Doug Rabson
6effc71332 Re-implement tcp and ip fragment reassembly to not store pointers in the
ip header which can't work on alpha since pointers are too big.

Reviewed by: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
1998-08-24 07:47:39 +00:00
Garrett Wollman
cfe8b629f1 Yow! Completely change the way socket options are handled, eliminating
another specialized mbuf type in the process.  Also clean up some
of the cruft surrounding IPFW, multicast routing, RSVP, and other
ill-explored corners.
1998-08-23 03:07:17 +00:00
Bruce Evans
162886e237 Fixed printf format errors. 1998-08-17 01:05:25 +00:00
Bruce Evans
bd3513170b Made some disgusting ifdefs even more disgusting to enable the support
for `u_long cmd' ioctl args if __FreeBSD_version >= 300003.  Some ioctls
were broken on machines with 32-bit ints and 64-bit longs.
1998-08-15 21:51:53 +00:00
Bruce Evans
e43b2ba087 Fixed printf format errors (ntohl() returns in_addr_t = u_int32_t != long
on some 64-bit systems).  print_ip() should use inet_ntoa() instead of
bloated inline code with 4 ntohl()s.
1998-08-11 19:08:42 +00:00
Bruce Evans
db176bbac6 Converted the last instance of hzto() to tvtohz(). 1998-08-05 16:59:20 +00:00
Doug Rabson
a467a475ab Use explicitly sized types when digging through packet headers.
Reviewed by: Julian Elischer <julian@whistle.com>
1998-08-03 17:23:37 +00:00
Peter Wemm
9de9737f47 Fix a compile error if IPFIREWALL_FORWARD active without IPDIVERT. 1998-08-01 08:44:33 +00:00
Kenjiro Cho
4f53e3cc7a update ATM driver. (base version: midway.c 1.67 --> 1.68)
several new features are added:
	- support vc/vp shaping
	- support pvc shadow interface

code cleanup:
	- remove WMAYBE related code.  ENI WMAYBE DMA doen't work.
	- remove updating if_lastchange for every packet.
	- BPF related code is moved to midway.c as it should be.
	  (bpfwrite should work if atm_pseudohdr and LLC/SNAP are
	  prepended.)
	- BPF link type is changed to DLT_ATM_RFC1483.
	  BPF now understands only LLC/SNAP!! (because bpf can't
	  handle variable link header length.)
	  It is recommended to use LLC/SNAP instead of NULL
	  encapsulation for various reasons.  (BPF, IPv6,
	  interoperability, etc.)

the code has been used for months in ALTQ and KAME IPv6.

OKed by phk long time ago.
1998-07-29 05:35:16 +00:00
Alexander Langer
a9a6d1042a Don't log ICMP type and subtype for non-zero offset packet fragments. 1998-07-18 23:27:15 +00:00
Bruce Evans
5914e1ea80 Removed a bogus forward struct declaration.
Cleaned up ifdefs.
1998-07-13 12:20:07 +00:00
Bruce Evans
0c8d2590e3 Fixed some longs that should have been fixed-sized types. 1998-07-13 12:12:25 +00:00
Bruce Evans
9105bb4680 Fixed overflow and sign extension bugs in
`len = min(so->so_snd.sb_cc, win) - off;'.  min() has type u_int
and `off' has type int, so when min() is 0 and `off' is 1, the RHS
overflows to 0U - 1 = UINT_MAX.  `len' has type long, so when
sizeof(long) == sizeof(int), the LHS normally overflows to to the
correct value of -1, but when sizeof(long) > sizeof(int), the LHS
is UINT_MAX.

Fixed some u_long's that should have been fixed-sized types.
1998-07-13 11:53:59 +00:00
Bruce Evans
07a4df4fee Declare tcp_seq and tcp_cc as fixed-size types. Half fixed type
mismatches exposed by this (the prototype for tcp_respond() didn't
match the  function definition lexically, and still depends on a
gcc feature to match if ints have more than 32 bits).
1998-07-13 11:09:52 +00:00
Bruce Evans
99c819ef77 Declare id_mask as a fixed-size type. 1998-07-13 11:01:03 +00:00
Bruce Evans
e53040ef71 Declare n_short, n_long and n_time as fixed-sized types. Don't ifdef
n_long or n_short specially for alphas.
1998-07-13 10:54:24 +00:00
David Greenman
0af8d3ec72 When not acting as a router (ipforwarding=0), silently discard source
routed packets that aren't destined for us, as required by RFC-1122.
PR: 7191
1998-07-08 08:49:51 +00:00
Julian Elischer
3a1ae084e2 oops ended comment before the comment ended.. 1998-07-06 09:10:56 +00:00
Julian Elischer
efe39c6a1a Bring back some slight cleanups from 2.2 1998-07-06 09:06:58 +00:00
Julian Elischer
1f7e052c16 Don't expect the new code to be used without the right option file being
included.
1998-07-06 05:04:33 +00:00
Julian Elischer
d4295c3248 Fix braino in switching to TAILQ macro. 1998-07-06 05:00:53 +00:00
Julian Elischer
f9e354df42 Support for IPFW based transparent forwarding.
Any packet that can be matched by a ipfw rule can be redirected
transparently to another port or machine. Redirection to another port
mostly makes sense with tcp, where a session can be set up
between a proxy and an unsuspecting client. Redirection to another machine
requires that the other machine also be expecting to receive the forwarded
packets, as their headers will not have been modified.

/sbin/ipfw must be recompiled!!!

Reviewed by:	Peter Wemm <peter@freebsd.org>
Submitted by: Chrisy Luke <chrisy@flix.net>
1998-07-06 03:20:19 +00:00
Julian Elischer
7d82bea53d Remove out of date comment. 1998-07-02 06:31:25 +00:00
Julian Elischer
b3adeeb209 Remove the option to keep IPFW diversion backwards compatible
WRT diversion reinjection. No-one has been bitten by the new behaviour
that I know of.
1998-07-02 05:49:12 +00:00
Poul-Henning Kamp
5fa7f62e66 Byte count statistics of multicast vifs are invalid.
The problem is caused by a wrong endianess in the sum.

PR:		7115
Submitted by:	Joao Carlos Mendes Luis <jonny@jonny.eng.br>
1998-06-30 10:56:31 +00:00
John Hay
a910fdcb88 Only make struct xtcpcb visable if _NETINET_IN_PCB_H_ and _SYS_SOCKETVAR_H_
are defined.
Reviewed by:	bde
1998-06-27 07:30:45 +00:00
Brian Somers
0579bd7175 Add CUSEEME support. This has *not* been tested, nor
could I find anyone to test it, so please report any
problems to me.
1998-06-24 06:58:00 +00:00
Bruce Evans
e5b19842ef Removed unused includes. 1998-06-21 14:53:44 +00:00
Peter Wemm
6054307b92 Merge ipfilter 3.2.3 -> 3.2.7 changes onto mainline. 1998-06-20 18:37:51 +00:00
Peter Wemm
122221ad20 This commit was generated by cvs2svn to compensate for changes in r37071,
which included commits to RCS files with non-trunk default branches.
1998-06-20 18:18:05 +00:00
Peter Wemm
aeee047f95 Import ipfilter 3.2.7 kernel components 1998-06-20 18:18:05 +00:00
Julian Elischer
2b8a366cf8 fix another typo 1998-06-15 00:35:47 +00:00
Julian Elischer
201c2527a9 Try narrow down the culprit sending undefined packet types through the loopback 1998-06-14 20:58:17 +00:00
Julian Elischer
6b1214b0fc Remove 3 occurances of __FUNCTION__ 1998-06-12 20:03:26 +00:00
Julian Elischer
ed7509ace4 Go through the loopback code with a broom..
Remove lots'o'hacks.
looutput is now static.

Other callers who want to use loopback to allow shortcutting
should call the special entrypoint for this, if_simloop(), which is
specifically designed for this purpose. Using looutput for this purpose
was problematic, particularly with bpf and trying to keep track
of whether one should be using the charateristics of the loopback interface
or the interface (e.g. if_ethersubr.c) that was requesting the loopback.
There was a whole class of errors due to this mis-use each of which had
hacks to cover them up.

Consists largly of hack removal :-)
1998-06-12 03:48:19 +00:00
Julian Elischer
0cab75363d include opt_ipdivert.h so we get correct options 1998-06-12 02:48:47 +00:00
Julian Elischer
bab04eb816 Allow diverted packets from the transmit side to remember if they
had a recv interface and allow that state to be available
after re-injection for further tests.
1998-06-12 01:54:29 +00:00
Brian Somers
dfcb634be3 Quieten gcc 2.8.1 1998-06-10 00:26:19 +00:00