Re: Default behaviour of IP Options processing

2004-05-07 Thread Jacques A. Vidrine
On Fri, May 07, 2004 at 05:07:53AM +0400, Maxim Konovalov wrote: > I hope you are not going to turn off ip fragmentation/reassembling by > default to make SO happy, aren't you? I know you are being sarcastic, but: that wouldn't make the SO happy. Cheers, -- Jacques Vidrine / [EMAIL PROTECTED] / [

Re: Default behaviour of IP Options processing

2004-05-07 Thread Jacques A. Vidrine
On Fri, May 07, 2004 at 09:51:00AM +0200, Martin Stiemerling wrote: > Anyway, setting the default to reject packets is IMHO not > a good idea, After a night's sleep, I also agree. Emitting ICMP messages is probably a bad, bad default. Cheers, -- Jacques Vidrine / [EMAIL PROTECTED] / [EMAIL PRO

Re: Default behaviour of IP Options processing

2004-05-06 Thread Jacques A. Vidrine
On Thu, May 06, 2004 at 09:16:03PM +0200, Andre Oppermann wrote: > I have just committed the attached change to ip_input() to control the > behaviour of IP Options processing. The default is the unchanged > current behaviour. > > However I want to propose to change the default from processing opt

Fwd: [IPv4 fragmentation --> The Rose Attack]

2004-03-31 Thread Jacques A. Vidrine
- Forwarded message from [EMAIL PROTECTED] - Date: Tue, 30 Mar 2004 22:18:05 -0600 From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: IPv4 fragmentation --> The Rose Attack Message-ID: <[EMAIL PROTECTED]> Greetings and Salutations: While this discussion pertains to IPv4, IPv6 also a

Fwd: [is this mbuf problem real?]

2004-02-18 Thread Jacques A. Vidrine
Does anyone have time to investigate? I will try to get more information from iDEFENSE. Cheers, -- Jacques Vidrine / [EMAIL PROTECTED] / [EMAIL PROTECTED] / [EMAIL PROTECTED] - Forwarded message from Baby Peanut <[EMAIL PROTECTED]> - Date: Wed, 18 Feb 2004 06:21:25 -0800 (PST) From: Ba

Re: Controlling ports used by natd

2003-12-12 Thread Jacques A. Vidrine
On Fri, Dec 12, 2003 at 04:20:04PM -0700, Brett Glass wrote: > It'd be nice to restrict which ports the OS > allowed apps to use, not only so that they don't get blocked by a firewall > but so that a worm that's gotten into the system is detected. (You could set > off an alarm if it tried to bind a

Re: Controlling ports used by natd

2003-12-12 Thread Jacques A. Vidrine
On Thu, Dec 11, 2003 at 08:12:49PM -0700, Brett Glass wrote: > Is there a way to control the range of ports to which FreeBSD's > natd maps outgoing connections? I'm attempting to deal with a > situation in which natd is (sometimes) changing outgoing UDP > packets' source port numbers to ones which

Re: Alternative fix for FreeBSD-SA-03:14.arp

2003-09-26 Thread Jacques A. Vidrine
On Fri, Sep 26, 2003 at 04:23:49PM +0100, Bruce M Simpson wrote: > Hi, > > Based on discussion between ru@ and I, there's a patch attached which > tries to fix the problem without deleting GENMASK routes, and is > stricter about not touching STATIC routes. > > Comments and reviews solicited, appr

possible DoS in dc driver

2003-01-21 Thread Jacques A. Vidrine
Long, lng ago, someone reported a dc driver bug. However, a couple of us have tried and failed to reproduce the problem. I thought I'd bounce the issue here before completely forgetting about it. Cheers, -- Jacques A. Vidrine <[EMAIL PROTECTED]> http://www.cela

network device drivers and information leak?

2003-01-07 Thread Jacques A. Vidrine
Might FreeBSD suffer from this issue? Do all our drivers pad packets with zero octets properly? http://www.kb.cert.org/vuls/id/412115 http://www.atstake.com/research/advisories/2003/atstake_etherleak_report.pdf Cheers, -- Jacques A. Vidrine <[EMAIL PROTECTED]> http://www.cela

Re: cvs commit: src/sys/netinet ip_icmp.c tcp_subr.c tcp_var.h

2000-12-17 Thread Jacques A. Vidrine
On Sun, Dec 17, 2000 at 10:08:52PM +0100, Jesper Skriver wrote: > >(2) These same messages are not handled for connections not in > >SYN-SENT: they ought to be > > Well, yes, but the real problem is when sessions are setup, the reason I > only configured it to affect sessions in SYN-S

Re: cvs commit: src/sys/netinet ip_icmp.c tcp_subr.c tcp_var.h

2000-12-17 Thread Jacques A. Vidrine
[Moved to freebsd-net] On Sun, Dec 17, 2000 at 09:59:14AM -0600, Jacques A. Vidrine wrote: > On Sun, Dec 17, 2000 at 10:24:12AM +0100, Poul-Henning Kamp wrote: > > In message <[EMAIL PROTECTED]>, Kris Kennaway writes: > > >This sounds like a security hole since ICMP m