From patchwork Wed Mar 17 12:54:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Petr Machata X-Patchwork-Id: 12145715 X-Patchwork-Delegate: dsahern@gmail.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 815FAC43331 for ; Wed, 17 Mar 2021 12:56:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43DD364F7B for ; Wed, 17 Mar 2021 12:56:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230319AbhCQMzd (ORCPT ); Wed, 17 Mar 2021 08:55:33 -0400 Received: from mail-bn8nam12on2041.outbound.protection.outlook.com ([40.107.237.41]:31923 "EHLO NAM12-BN8-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230035AbhCQMzP (ORCPT ); Wed, 17 Mar 2021 08:55:15 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=clV/vJ0dmg5btxa/yz29yw1uwPUp6S3kQDGU3ep0mCo7fxIq5vNMYQNxGUcmnGygHwUzlI29QFftru46WmpRzPfKSVZTzDSYuylVbAcQ6+uAVXSUrm9XeeXaKNr4u2oO3XWbRRZR4A2av9b52s56bcI4ewaD2TI4k9wACGiioL8QhHmbg31WAj9fFaorcKd6DaYsG9RWjiT6peTdvWVYtHyZ/hbPasmzG8XEPfXFjktoOrs5cTwVy+L0SvpwEYF0DoXCMNDtuGajwtZ6X7Fl/zDWOYFDA3hSiOj8nKlf0hTcLMsIt/iZtMdqCWRuxQdcm6GfD/G6je0CyXAL51wvBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kbK56gGFmoBORbU13R8xybyktbdidQJWj1OJjfiYu54=; b=AU9pYjVc7eIksxW4xXTFx126wuUD1lb44UYyXSqA1Kzg4sC3vakh/V1Nmrpnzks01XdxZrbcFb6uvnx0j5OldejjhYYo7F1gscGuimN+Bsrf9sH1f1EnLpVswKpYpqKeh/qVYVPTHH4YWUj2g3lrGRf6HYeO3m2bhAEqcp5BWrj0ay3tpThcmN68R7CO5jRJqLO4E+SqJhl6Ui4z1RiqMZMHGDg2ebCfr0Ala0Y75UztEaRJrxadxA4rlWF4fdzSf/LgIG8merKVxoxvt6ClOGqyYbGDWq4colIa10uUvJcB4YIlJrhInWZhVBdRt9m0kgL+FDKMG05papulG9g+Bg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.112.34) smtp.rcpttodomain=networkplumber.org smtp.mailfrom=nvidia.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kbK56gGFmoBORbU13R8xybyktbdidQJWj1OJjfiYu54=; b=lYXwfqdvCq/6pMBbbcUTUSsBcCsnOjN9TJUgsCKNK/vw84FB/zxcnKptLsxtlhFkrLLLyNkyYKTxOhR/tDwbnHGq1vOngZlc8VB2/OnSsmRcUGytyozISLMQiwMhDyRe2u8z2GuPP5yWSx7TG4JQH8VSFdILx87ec5hd641xINtFfcNGioKE5iRBbOcTQRtFaXWtZE356O8E6F4LZ68uma0qwFk6JNEDHDpS/E1hcv38JoY0T2WzB+PUBBA2LjU6xH4UbuwMrOBml8vxIKMkozFo6Zidl2KTpd5kxqHkmdkrWHGv7moC+uujfBA2elk9K+alLA+LpSXu12ISkjt2mQ== Received: from DM5PR06CA0033.namprd06.prod.outlook.com (2603:10b6:3:5d::19) by DM6PR12MB3724.namprd12.prod.outlook.com (2603:10b6:5:1c9::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3933.32; Wed, 17 Mar 2021 12:55:13 +0000 Received: from DM6NAM11FT021.eop-nam11.prod.protection.outlook.com (2603:10b6:3:5d:cafe::9) by DM5PR06CA0033.outlook.office365.com (2603:10b6:3:5d::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3955.18 via Frontend Transport; Wed, 17 Mar 2021 12:55:13 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.112.34) smtp.mailfrom=nvidia.com; networkplumber.org; dkim=none (message not signed) header.d=none;networkplumber.org; dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.112.34 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.112.34; helo=mail.nvidia.com; Received: from mail.nvidia.com (216.228.112.34) by DM6NAM11FT021.mail.protection.outlook.com (10.13.173.76) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.3955.18 via Frontend Transport; Wed, 17 Mar 2021 12:55:13 +0000 Received: from localhost.localdomain (172.20.145.6) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 17 Mar 2021 12:55:10 +0000 From: Petr Machata To: , , CC: Ido Schimmel , Petr Machata Subject: [PATCH iproute2-next v4 4/6] nexthop: Add ability to specify group type Date: Wed, 17 Mar 2021 13:54:33 +0100 Message-ID: X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [172.20.145.6] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To HQMAIL107.nvidia.com (172.20.187.13) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 561cf974-7c30-416a-7b32-08d8e943e7ca X-MS-TrafficTypeDiagnostic: DM6PR12MB3724: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:849; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.112.34;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:schybrid03.nvidia.com;CAT:NONE;SFS:(4636009)(346002)(39860400002)(396003)(136003)(376002)(36840700001)(46966006)(70206006)(8936002)(107886003)(5660300002)(7636003)(316002)(8676002)(36906005)(86362001)(356005)(47076005)(70586007)(478600001)(82740400003)(16526019)(82310400003)(2616005)(186003)(26005)(36756003)(6666004)(2906002)(426003)(34020700004)(36860700001)(4326008)(54906003)(110136005)(83380400001)(336012);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Mar 2021 12:55:13.2743 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 561cf974-7c30-416a-7b32-08d8e943e7ca X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.34];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT021.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3724 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: dsahern@gmail.com From: Ido Schimmel Next patches are going to add a 'resilient' nexthop group type, so allow users to specify the type using the 'type' argument. Currently, only 'mpath' type is supported. These two commands are equivalent: # ip nexthop add id 10 group 1/2/3 # ip nexthop add id 10 group 1/2/3 type mpath Signed-off-by: Ido Schimmel Signed-off-by: Petr Machata --- Notes: v2: - Add a missing example command to commit message - Mention in the man page that mpath is the default ip/ipnexthop.c | 32 +++++++++++++++++++++++++++++++- man/man8/ip-nexthop.8 | 19 +++++++++++++++++-- 2 files changed, 48 insertions(+), 3 deletions(-) diff --git a/ip/ipnexthop.c b/ip/ipnexthop.c index 126b0b17cab4..5aae32629edd 100644 --- a/ip/ipnexthop.c +++ b/ip/ipnexthop.c @@ -42,8 +42,10 @@ static void usage(void) "SELECTOR := [ id ID ] [ dev DEV ] [ vrf NAME ] [ master DEV ]\n" " [ groups ] [ fdb ]\n" "NH := { blackhole | [ via ADDRESS ] [ dev DEV ] [ onlink ]\n" - " [ encap ENCAPTYPE ENCAPHDR ] | group GROUP [ fdb ] }\n" + " [ encap ENCAPTYPE ENCAPHDR ] |\n" + " group GROUP [ fdb ] [ type TYPE ] }\n" "GROUP := [ //... ]\n" + "TYPE := { mpath }\n" "ENCAPTYPE := [ mpls ]\n" "ENCAPHDR := [ MPLSLABEL ]\n"); exit(-1); @@ -327,6 +329,32 @@ static int add_nh_group_attr(struct nlmsghdr *n, int maxlen, char *argv) return addattr_l(n, maxlen, NHA_GROUP, grps, count * sizeof(*grps)); } +static int read_nh_group_type(const char *name) +{ + if (strcmp(name, "mpath") == 0) + return NEXTHOP_GRP_TYPE_MPATH; + + return __NEXTHOP_GRP_TYPE_MAX; +} + +static void parse_nh_group_type(struct nlmsghdr *n, int maxlen, int *argcp, + char ***argvp) +{ + char **argv = *argvp; + int argc = *argcp; + __u16 type; + + NEXT_ARG(); + type = read_nh_group_type(*argv); + if (type > NEXTHOP_GRP_TYPE_MAX) + invarg("\"type\" value is invalid\n", *argv); + + *argcp = argc; + *argvp = argv; + + addattr16(n, maxlen, NHA_GROUP_TYPE, type); +} + static int ipnh_parse_id(const char *argv) { __u32 id; @@ -409,6 +437,8 @@ static int ipnh_modify(int cmd, unsigned int flags, int argc, char **argv) if (add_nh_group_attr(&req.n, sizeof(req), *argv)) invarg("\"group\" value is invalid\n", *argv); + } else if (!strcmp(*argv, "type")) { + parse_nh_group_type(&req.n, sizeof(req), &argc, &argv); } else if (matches(*argv, "protocol") == 0) { __u32 prot; diff --git a/man/man8/ip-nexthop.8 b/man/man8/ip-nexthop.8 index 4d55f4dbcc75..b86f307fef35 100644 --- a/man/man8/ip-nexthop.8 +++ b/man/man8/ip-nexthop.8 @@ -54,7 +54,9 @@ ip-nexthop \- nexthop object management .BR fdb " ] | " .B group .IR GROUP " [ " -.BR fdb " ] } " +.BR fdb " ] [ " +.B type +.IR TYPE " ] } " .ti -8 .IR ENCAP " := [ " @@ -71,6 +73,10 @@ ip-nexthop \- nexthop object management .IR GROUP " := " .BR id "[," weight "[/...]" +.ti -8 +.IR TYPE " := { " +.BR mpath " }" + .SH DESCRIPTION .B ip nexthop is used to manipulate entries in the kernel's nexthop tables. @@ -122,9 +128,18 @@ is a set of encapsulation attributes specific to the .in -2 .TP -.BI group " GROUP" +.BI group " GROUP [ " type " TYPE ]" create a nexthop group. Group specification is id with an optional weight (id,weight) and a '/' as a separator between entries. +.sp +.I TYPE +is a string specifying the nexthop group type. Namely: + +.in +8 +.BI mpath +- Multipath nexthop group backed by the hash-threshold algorithm. The +default when the type is unspecified. + .TP .B blackhole create a blackhole nexthop