From owner-freebsd-net@FreeBSD.ORG Wed Jan 5 05:33:04 2005 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D29E916A4CE for ; Wed, 5 Jan 2005 05:33:04 +0000 (GMT) Received: from web8404.mail.in.yahoo.com (web8404.mail.in.yahoo.com [202.43.219.152]) by mx1.FreeBSD.org (Postfix) with SMTP id 8F4B743D1F for ; Wed, 5 Jan 2005 05:33:03 +0000 (GMT) (envelope-from nehavrce@yahoo.co.in) Received: (qmail 85553 invoked by uid 60001); 5 Jan 2005 05:33:02 -0000 Message-ID: <20050105053301.85548.qmail@web8404.mail.in.yahoo.com> Received: from [202.54.13.146] by web8404.mail.in.yahoo.com via HTTP; Tue, 04 Jan 2005 21:33:01 PST Date: Tue, 4 Jan 2005 21:33:01 -0800 (PST) From: neha agrawal To: freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="0-860778746-1104903181=:84496" Content-Transfer-Encoding: 8bit Subject: Replaying a TCP connection X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Jan 2005 05:33:04 -0000 --0-860778746-1104903181=:84496 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Content-Id: Content-Disposition: inline hello! i want to implement smtp protocol on the same machine.i have a libpcap trace file..in which i have captured mail traffic..(single session).and i want to develop a program which can read this trace file..and communicate with the smtp server... first packet is Sync packet in trace file..so i want to send it to smtp server...and then i want my progrem to handle the reply sent by server..(say it sent Syn-Ack) anf then my prgm should reply accordingly.. for doing this i am using PF_PACKET , SOCK_RAW and using sendto function...i am sending the packet..im able to see it through tcpdump...but theserver is not replying...why??i am wrking with linux Redhat 9 kernel 2.4.20-8 (...if u r familiar with flowreplay tool..i want to do something similar ...but mine is single session..so less complicated...) attching source code... do let me know..if i am on correct track... thnks Neha __________________________________ Do you Yahoo!? Yahoo! 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