From owner-freebsd-hackers@FreeBSD.ORG Wed Mar 26 01:38:08 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CACE237B404 for ; Wed, 26 Mar 2003 01:38:08 -0800 (PST) Received: from smtp.netli.com (ip2-pal-focal.netli.com [66.243.52.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3A5CC43F3F for ; Wed, 26 Mar 2003 01:38:08 -0800 (PST) (envelope-from vlm@netli.com) Received: (qmail 17789 invoked by uid 84); 26 Mar 2003 09:31:27 -0000 Received: from vlm@netli.com by l3-1 with qmail-scanner-0.96 (uvscan: v4.1.40/v4121. . Clean. Processed in 0.122759 secs); 26 Mar 2003 09:31:27 -0000 Received: from unknown (HELO netli.com) (172.17.1.38) by mx01-pal-lan.netli.lan with SMTP; 26 Mar 2003 09:31:27 -0000 Message-ID: <3E817383.6010405@netli.com> Date: Wed, 26 Mar 2003 01:31:47 -0800 From: Lev Walkin Organization: Netli, Inc. User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.2.1) Gecko/20030125 X-Accept-Language: ru, en-us, en MIME-Version: 1.0 To: vys@renet.ru References: <3585.195.161.130.250.1048598218.squirrel@mail.renet.ru> In-Reply-To: <3585.195.161.130.250.1048598218.squirrel@mail.renet.ru> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, hits=-31.9 required=5.0 tests=EMAIL_ATTRIBUTION,IN_REP_TO,QUOTED_EMAIL_TEXT,REFERENCES, REPLY_WITH_QUOTES,USER_AGENT_MOZILLA_UA autolearn=ham version=2.50 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp) cc: freebsd-hackers@freebsd.org Subject: Re: Question about BPF API (PCAP not like for me) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Mar 2003 09:38:13 -0000 Vladimir Yu. Stepanov wrote: > Hello ! > > I have a little question about BPF: how to determine incoming or outgoing > packet given into the user level mode. Current API do not supported this > or I are wrong ? Unfortunately, there is no way of determining this fact. However, there is a flag names BIOCSSEESENT that enables you to skip over locally generated packets on the interface in question. See ports/net/ipcad. -- Lev Walkin vlm@netli.com