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Miller" , Jakub Kicinski , Petar Penkov , Lorenz Bauer , Eric Dumazet , Hideaki YOSHIFUJI , "David Ahern" , Shuah Khan , "Jesper Dangaard Brouer" , Nathan Chancellor , "Nick Desaulniers" , Joe Stringer , "Florent Revest" , , =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , "Kumar Kartikeya Dwivedi" , Florian Westphal , "Maxim Mikityanskiy" Subject: [PATCH bpf-next v3 1/5] bpf: Use ipv6_only_sock in bpf_tcp_gen_syncookie Date: Thu, 24 Feb 2022 17:11:41 +0200 Message-ID: <20220224151145.355355-2-maximmi@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220224151145.355355-1-maximmi@nvidia.com> References: <20220224151145.355355-1-maximmi@nvidia.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e3029334-861f-42cc-2b9e-08d9f7a8150b X-MS-TrafficTypeDiagnostic: DM6PR12MB4403:EE_ X-Microsoft-Antispam-PRVS: 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:12.22.5.238;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(13230001)(4636009)(46966006)(40470700004)(36840700001)(36860700001)(36756003)(54906003)(47076005)(81166007)(316002)(356005)(83380400001)(110136005)(26005)(426003)(336012)(6666004)(70206006)(7416002)(5660300002)(8936002)(7696005)(70586007)(4326008)(2906002)(8676002)(82310400004)(40460700003)(86362001)(1076003)(4744005)(2616005)(508600001)(186003)(107886003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Feb 2022 15:12:32.8162 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e3029334-861f-42cc-2b9e-08d9f7a8150b X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.238];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT058.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4403 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Instead of querying the sk_ipv6only field directly, use the dedicated ipv6_only_sock helper. Signed-off-by: Maxim Mikityanskiy Reviewed-by: Tariq Toukan Acked-by: John Fastabend Acked-by: Lorenz Bauer Acked-by: Petar Penkov --- net/core/filter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/filter.c b/net/core/filter.c index 65869fd510e8..0edbfdc8cb24 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -7090,7 +7090,7 @@ BPF_CALL_5(bpf_tcp_gen_syncookie, struct sock *, sk, void *, iph, u32, iph_len, */ switch (((struct iphdr *)iph)->version) { case 4: - if (sk->sk_family == AF_INET6 && sk->sk_ipv6only) + if (sk->sk_family == AF_INET6 && ipv6_only_sock(sk)) return -EINVAL; mss = tcp_v4_get_syncookie(sk, iph, th, &cookie);