From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Rolland Subject: IPv6 raw socket and recvfrom Date: Tue, 17 Aug 2010 14:31:20 +0200 Message-ID: <20100817143120.7fad5186@tux.DEF.witbe.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from smtp.witbe.net ([81.88.96.48]:57461 "EHLO smtp.witbe.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751783Ab0HQMg5 (ORCPT ); Tue, 17 Aug 2010 08:36:57 -0400 Received: from tux.DEF.witbe.net (host-95.DEF.witbe.net [192.168.0.95]) by smtp.witbe.net (8.14.1/8.14.1) with ESMTP id o7HCVKX5015710 for ; Tue, 17 Aug 2010 14:31:35 +0200 Sender: netdev-owner@vger.kernel.org List-ID: Hello, I'd like someone to clarify the behavior I can expect from a RAW IPv6 socket _in Linux_ : - Raw IPv4 sockets : recvfrom() payload contain all the IP header, including src ip, dst ip, etc... - Raw IPv6 sockets : so far, recvfrom returns me only the payload. I've added the HDRINCL options, but it seems that this is a no-op in IPv6-land. I've reviewed RFC 3542, which states that I'm not to expect ip6 header, but often "there is more than one way to do it", and I'd like to be sure I'm not missing something obvious Paul PS : I'm not subscribed to netdev, so please answer directly...