From patchwork Tue Jul 12 06:56:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Pettit X-Patchwork-Id: 647315 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from archives.nicira.com (archives.nicira.com [96.126.127.54]) by ozlabs.org (Postfix) with ESMTP id 3rpdJw3CpDz9sBX for ; Tue, 12 Jul 2016 20:20:48 +1000 (AEST) Received: from archives.nicira.com (localhost [127.0.0.1]) by archives.nicira.com (Postfix) with ESMTP id 132DB1087A; Tue, 12 Jul 2016 03:20:27 -0700 (PDT) X-Original-To: dev@openvswitch.org Delivered-To: dev@openvswitch.org Received: from mx1e4.cudamail.com (mx1.cudamail.com [69.90.118.67]) by archives.nicira.com (Postfix) with ESMTPS id BDB8D1075F for ; Tue, 12 Jul 2016 03:20:24 -0700 (PDT) Received: from bar5.cudamail.com (unknown [192.168.21.12]) by mx1e4.cudamail.com (Postfix) with ESMTPS id 459D21E0645 for ; Tue, 12 Jul 2016 04:20:24 -0600 (MDT) X-ASG-Debug-ID: 1468318823-09eadd72130c2a0001-byXFYA Received: from mx3-pf3.cudamail.com ([192.168.14.3]) by bar5.cudamail.com with ESMTP id ok4DHCf9dmDujLH3 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 12 Jul 2016 04:20:23 -0600 (MDT) X-Barracuda-Envelope-From: jpettit@ovn.org X-Barracuda-RBL-Trusted-Forwarder: 192.168.14.3 Received: from unknown (HELO slow1-d.mail.gandi.net) (217.70.178.86) by mx3-pf3.cudamail.com with SMTP; 12 Jul 2016 10:20:23 -0000 Received-SPF: pass (mx3-pf3.cudamail.com: SPF record at ovn.org designates 217.70.178.86 as permitted sender) X-Barracuda-Apparent-Source-IP: 217.70.178.86 X-Barracuda-RBL-IP: 217.70.178.86 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by slow1-d.mail.gandi.net (Postfix) with ESMTP id 0510E4B6626 for ; Tue, 12 Jul 2016 12:17:13 +0200 (CEST) X-Originating-IP: 98.234.50.139 Received: from localhost.localdomain (unknown [98.234.50.139]) (Authenticated sender: jpettit@ovn.org) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 6B356C5B60 for ; Tue, 12 Jul 2016 12:17:13 +0200 (CEST) X-CudaMail-Envelope-Sender: jpettit@ovn.org From: Justin Pettit To: dev@openvswitch.org X-CudaMail-Whitelist-To: dev@openvswitch.org X-CudaMail-MID: CM-V3-711003456 X-CudaMail-DTE: 071216 X-CudaMail-Originating-IP: 217.70.178.86 Date: Mon, 11 Jul 2016 23:56:50 -0700 X-ASG-Orig-Subj: [##CM-V3-711003456##][ovn-ipv6 20/26] packets: Add in6_is_lla() function. Message-Id: <1468306616-125783-21-git-send-email-jpettit@ovn.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1468306616-125783-1-git-send-email-jpettit@ovn.org> References: <1468306616-125783-1-git-send-email-jpettit@ovn.org> X-Barracuda-Connect: UNKNOWN[192.168.14.3] X-Barracuda-Start-Time: 1468318823 X-Barracuda-Encrypted: DHE-RSA-AES256-SHA X-Barracuda-URL: https://web.cudamail.com:443/cgi-mod/mark.cgi X-ASG-Whitelist: Header =?UTF-8?B?eFwtY3VkYW1haWxcLXdoaXRlbGlzdFwtdG8=?= X-Virus-Scanned: by bsmtpd at cudamail.com X-Barracuda-BRTS-Status: 1 Subject: [ovs-dev] [ovn-ipv6 20/26] packets: Add in6_is_lla() function. X-BeenThere: dev@openvswitch.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dev-bounces@openvswitch.org Sender: "dev" This will have a caller in a future commit. Signed-off-by: Justin Pettit Acked-by: Ben Pfaff --- lib/packets.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/packets.h b/lib/packets.h index 617f058..df6ce4b 100644 --- a/lib/packets.h +++ b/lib/packets.h @@ -980,6 +980,12 @@ in6_generate_lla(struct eth_addr ea, struct in6_addr *lla) taddr->be16[7] = ea.be16[2]; } +static inline bool +in6_is_lla(struct in6_addr *addr) +{ + return addr->s6_addr32[0] == htonl(0xfe800000) && !(addr->s6_addr32[1]); +} + static inline void ipv6_multicast_to_ethernet(struct eth_addr *eth, const struct in6_addr *ip6) {