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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Roopa Prabhu , Nikolay Aleksandrov , CC: , Petr Machata , "Ido Schimmel" Subject: [PATCH net-next 15/16] selftests: forwarding: lib: Add helpers to build IGMP/MLD leave packets Date: Thu, 26 Jan 2023 18:01:23 +0100 Message-ID: X-Mailer: git-send-email 2.39.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.126.231.37] X-ClientProxiedBy: rnnvmail202.nvidia.com (10.129.68.7) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT109:EE_|SN7PR12MB7785:EE_ X-MS-Office365-Filtering-Correlation-Id: 54aec6a8-5766-4b26-f015-08daffbf2418 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230025)(4636009)(346002)(396003)(39860400002)(136003)(376002)(451199018)(46966006)(40470700004)(36840700001)(7636003)(356005)(40480700001)(82740400003)(40460700003)(6666004)(86362001)(186003)(4326008)(36860700001)(8936002)(107886003)(41300700001)(2906002)(5660300002)(16526019)(2616005)(478600001)(26005)(8676002)(70586007)(36756003)(54906003)(82310400005)(110136005)(316002)(47076005)(70206006)(426003)(336012);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jan 2023 17:02:43.4547 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 54aec6a8-5766-4b26-f015-08daffbf2418 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT109.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7785 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The testsuite that checks for mcast_max_groups functionality will need to wipe the added groups as well. Add helpers to build an IGMP or MLD packets announcing that host is leaving a given group. Signed-off-by: Petr Machata --- tools/testing/selftests/net/forwarding/lib.sh | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 9f180af2cd81..7b3e89a15ccb 100755 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -1815,6 +1815,21 @@ igmpv3_is_in_get() payload_template_expand_checksum "$igmpv3" $checksum } +igmpv2_leave_get() +{ + local GRP=$1; shift + + local payload=$(: + )"17:"$( : Type - Leave Group + )"00:"$( : Max Resp Time - not meaningful + )"CHECKSUM:"$( : Checksum + )"$(ipv4_to_bytes $GRP)"$( : Group Address + ) + local checksum=$(payload_template_calc_checksum "$payload") + + payload_template_expand_checksum "$payload" $checksum +} + mldv2_is_in_get() { local SIP=$1; shift @@ -1858,3 +1873,38 @@ mldv2_is_in_get() payload_template_expand_checksum "$hbh$icmpv6" $checksum } + +mldv1_done_get() +{ + local SIP=$1; shift + local GRP=$1; shift + + local hbh + local icmpv6 + + hbh=$(: + )"3a:"$( : Next Header - ICMPv6 + )"00:"$( : Hdr Ext Len + )"00:00:00:00:00:00:"$( : Options and Padding + ) + + icmpv6=$(: + )"84:"$( : Type - MLDv1 Done + )"00:"$( : Code + )"CHECKSUM:"$( : Checksum + )"00:00:"$( : Max Resp Delay - not meaningful + )"00:00:"$( : Reserved + )"$(ipv6_to_bytes $GRP):"$( : Multicast address + ) + + local len=$(u16_to_bytes $(payload_template_nbytes $icmpv6)) + local sudohdr=$(: + )"$(ipv6_to_bytes $SIP):"$( : SIP + )"$(ipv6_to_bytes $GRP):"$( : DIP is multicast address + )"${len}:"$( : Upper-layer length + )"00:3a:"$( : Zero and next-header + ) + local checksum=$(payload_template_calc_checksum ${sudohdr}${icmpv6}) + + payload_template_expand_checksum "$hbh$icmpv6" $checksum +} -- 2.39.0