From patchwork Mon Feb 24 12:28:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Wunderlich X-Patchwork-Id: 3709051 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 77972BF13A for ; Mon, 24 Feb 2014 12:29:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7C87E20136 for ; Mon, 24 Feb 2014 12:29:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 729D42011D for ; Mon, 24 Feb 2014 12:29:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752472AbaBXM3F (ORCPT ); Mon, 24 Feb 2014 07:29:05 -0500 Received: from packetmixer.de ([79.140.42.25]:41613 "EHLO mail.mail.packetmixer.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752317AbaBXM2s (ORCPT ); Mon, 24 Feb 2014 07:28:48 -0500 Received: from kero.packetmixer.de (unknown [IPv6:2a02:3100:2600:1e00:221:ccff:fe73:b665]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.mail.packetmixer.de (Postfix) with ESMTPSA id 747277107E; Mon, 24 Feb 2014 13:29:04 +0100 (CET) From: Simon Wunderlich To: netdev@vger.kernel.org Cc: davem@davemloft.net, linux-wireless@vger.kernel.org, mathias.kretschmer@fokus.fraunhofer.de, Simon Wunderlich Subject: [net-next v3 2/3] UAPI: add MPLS label stack definition Date: Mon, 24 Feb 2014 13:28:39 +0100 Message-Id: <1393244920-15903-3-git-send-email-sw@simonwunderlich.de> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1393244920-15903-1-git-send-email-sw@simonwunderlich.de> References: <1393244920-15903-1-git-send-email-sw@simonwunderlich.de> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Labels for the Multiprotocol Label Switching are defined in RFC 3032 which was superseded by RFC 5462. Add the definition to UAPI and a stub header for include/linux. Signed-off-by: Simon Wunderlich Signed-off-by: Mathias Kretschmer --- Changes to first version: * add stub mpls header in include/linux/mpls.h for users inside the kernel --- include/linux/mpls.h | 6 ++++++ include/uapi/linux/mpls.h | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 include/linux/mpls.h create mode 100644 include/uapi/linux/mpls.h diff --git a/include/linux/mpls.h b/include/linux/mpls.h new file mode 100644 index 0000000..9999145 --- /dev/null +++ b/include/linux/mpls.h @@ -0,0 +1,6 @@ +#ifndef _LINUX_MPLS_H +#define _LINUX_MPLS_H + +#include + +#endif /* _LINUX_MPLS_H */ diff --git a/include/uapi/linux/mpls.h b/include/uapi/linux/mpls.h new file mode 100644 index 0000000..15c8260 --- /dev/null +++ b/include/uapi/linux/mpls.h @@ -0,0 +1,34 @@ +#ifndef _UAPI_MPLS_H +#define _UAPI_MPLS_H + +#include +#include + +/* Reference: RFC 5462, RFC 3032 + * + * 0 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Label | TC |S| TTL | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * Label: Label Value, 20 bits + * TC: Traffic Class field, 3 bits + * S: Bottom of Stack, 1 bit + * TTL: Time to Live, 8 bits + */ + +struct mpls_label_stack { + __be32 entry; +}; + +#define MPLS_LS_LABEL_MASK 0xFFFFF000 +#define MPLS_LS_LABEL_SHIFT 12 +#define MPLS_LS_TC_MASK 0x00000E00 +#define MPLS_LS_TC_SHIFT 9 +#define MPLS_LS_S_MASK 0x00000100 +#define MPLS_LS_S_SHIFT 8 +#define MPLS_LS_TTL_MASK 0x000000FF +#define MPLS_LS_TTL_SHIFT 0 + +#endif /* _UAPI_MPLS_H */