From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: iptables STILL incorrectly using TCP packet contents without checking header! Date: Sun, 03 Apr 2005 20:34:14 +0200 Message-ID: <42503726.2030202@trash.net> References: <20050331185732.GA20249@netnation.com> <424C57EB.7020308@outerspace.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: netfilter-devel@lists.netfilter.org Return-path: To: Henrik Nordstrom In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-devel-bounces@lists.netfilter.org Errors-To: netfilter-devel-bounces@lists.netfilter.org List-Id: netfilter-devel.vger.kernel.org Henrik Nordstrom wrote: > On Thu, 31 Mar 2005, Jonas Berlin wrote: > >> But what will be done in case REJECT notices it's not valid? > > > In such case REJECT should silently DROP the packet without sending a > reject response. > > Same as you see in a TCP/IP stack when receiving malformed TCP packets. > These are dropped as invalid, not generating TCP RST like most "odd but > not malformed" TCP packets do. Agreed. I'll fix it up. Regards Patrick