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Miller" , Jakub Kicinski , Hideaki YOSHIFUJI , David Ahern , "Jesper Dangaard Brouer" , Nathan Chancellor , "Nick Desaulniers" , Brendan Jackman , Florent Revest , Joe Stringer , "Lorenz Bauer" , Tariq Toukan , , , , Maxim Mikityanskiy Subject: [PATCH bpf-next 01/10] bpf: Use ipv6_only_sock in bpf_tcp_gen_syncookie Date: Tue, 19 Oct 2021 17:46:46 +0300 Message-ID: <20211019144655.3483197-2-maximmi@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211019144655.3483197-1-maximmi@nvidia.com> References: <20211019144655.3483197-1-maximmi@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b0474ccf-f881-4441-2713-08d9930f5fbd X-MS-TrafficTypeDiagnostic: CY4PR12MB1893: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1169; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: v4iJwkEB1OyZtb8PyVTAMSwGyfTWV0rKqSi5INKm4KpMQ0KIp7/P5jvquKlQjsfJpSuIxOBlq/QktDjxXtVUbsoLX1y46qpCe3oLd7cuyzgvf5SQMEJtruWWqA3XnnbVqitLgh1kNsEHY+LXVKw5duHN8mIWmMJinoGnLKbzbS78rlwQ9PyClXyQZnNfmfRemAuC8TPwIEiE5fn/hJOn+VBKYPMfdT4Wng/CJZP/VIs/RYzxMdfUpolfqND9heS+Iv5lTVgB1Yq9c9YG7Z+miRbfGcfdx7SvHXUPJ8RP3W/oLxtJhIImtWbo+k7b1vsubnHytFrxHh5LFm5QkiSfZR3FCmkkqQ+hKtDMHw+cCwVKQ/6vkU7z4syUxDdrHeEFNL4XcmfzrVPkdNWQY9fvLgqa+LMLhVNaPw68e56vE0BOeykYNXmYQSWQvaNGrB852suNhndb8pNceUqVosYN+xAvUfaGCkqiQhIkEdSpUB9gRXedWBpHxLfcteJCDvxSqTHrfFITQ67pWSsLNu4IoFNM/CjVUrlsY4mZF8N7nOXyWlBsEdPxf1UJxrjrFZGjUJiP0qYwv7qMwnf7/KSDWZjMNpOHRabFAbx+2Y+cIwXHTvp7fTk5wHksI9MI6aSt50B/mMjq0QFRrUffnkGTS9GDdMizFYGURuQskg790hcLa8ATElKQ1m6s2S3mB4CH5XxgVp8TwrrmowrxtJaZbw== X-Forefront-Antispam-Report: CIP:216.228.112.36;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:schybrid05.nvidia.com;CAT:NONE;SFS:(4636009)(36840700001)(46966006)(356005)(316002)(36860700001)(26005)(7636003)(7416002)(54906003)(186003)(5660300002)(2616005)(83380400001)(110136005)(2906002)(8676002)(86362001)(508600001)(336012)(7696005)(8936002)(426003)(47076005)(36756003)(4744005)(107886003)(4326008)(1076003)(70206006)(70586007)(82310400003)(6666004)(36906005);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Oct 2021 14:47:28.1115 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b0474ccf-f881-4441-2713-08d9930f5fbd X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.36];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT015.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR12MB1893 Precedence: bulk List-ID: X-Mailing-List: bpf@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 --- 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 4bace37a6a44..d830055d477c 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -6788,7 +6788,7 @@ 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); -- 2.30.2