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Tue, 11 Mar 2025 05:03:05 -0700 (PDT) From: Antonio Quartulli Date: Tue, 11 Mar 2025 13:02:05 +0100 Subject: [PATCH net-next v22 04/23] ovpn: keep carrier always on for MP interfaces Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250311-b4-ovpn-v22-4-2b7b02155412@openvpn.net> References: <20250311-b4-ovpn-v22-0-2b7b02155412@openvpn.net> In-Reply-To: <20250311-b4-ovpn-v22-0-2b7b02155412@openvpn.net> To: netdev@vger.kernel.org, Eric Dumazet , Jakub Kicinski , Paolo Abeni , Donald Hunter , Antonio Quartulli , Shuah Khan , sd@queasysnail.net, ryazanov.s.a@gmail.com, Andrew Lunn Cc: Simon Horman , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Xiao Liang X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1056; i=antonio@openvpn.net; h=from:subject:message-id; bh=nC6lwDPb3zbItVdYhexRf+7PoutRMPw8aLJAIMgqJRQ=; b=owEBbQGS/pANAwAIAQtw5TqgONWHAcsmYgBn0CZwjPCNQ3jPkMYrshxLF11tMJIC8IFKY8uqo 8c4v1Ee4XmJATMEAAEIAB0WIQSZq9xs+NQS5N5fwPwLcOU6oDjVhwUCZ9AmcAAKCRALcOU6oDjV h5eIB/9+ocw/boPzPAVjRI4bTypw4HVhVXUvlyFkjE2M0rfcW98avYxJ2aU2tuCcjS2CTBY5G9w fFhMy9eIhx/362GyVRc3QZtfCE6WxrVd6ulpmRWWiq84X1XhOn9+GqqC4/HbuVwGESisCLHII5Y mAQhjFAG1LTxQLceMmhqBPNiom5VH9zuaJS1vT70lAfKX1ORpf50cMDCBonMf7/oNAv8kaw93vW qDFoNI6ptXGPX8/33wwOeJsFxE0DnYAIn8Rvy1P8uUEAEwokb9iLmJZ52hShExhfq/e2Al4htWd Zc3yqxO889Y73xGOMsoe4ROindoYfZk+Kg2r56swrE2i88Cf X-Developer-Key: i=antonio@openvpn.net; a=openpgp; fpr=CABDA1282017C267219885C748F0CCB68F59D14C An ovpn interface configured in MP mode will keep carrier always on and let the user decide when to bring it administratively up and down. This way a MP node (i.e. a server) will keep its interface always up and running, even when no peer is connected. Signed-off-by: Antonio Quartulli --- drivers/net/ovpn/main.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ovpn/main.c b/drivers/net/ovpn/main.c index e71183e6f42cd801861caaec9eb0f6828b64cda9..c5e75108b8da5eabde25426c6d6668fb14491986 100644 --- a/drivers/net/ovpn/main.c +++ b/drivers/net/ovpn/main.c @@ -23,6 +23,15 @@ static int ovpn_net_open(struct net_device *dev) { + struct ovpn_priv *ovpn = netdev_priv(dev); + + /* carrier for P2P interfaces is switched on and off when + * the peer is added or deleted. + * + * in case of P2MP interfaces we just keep the carrier always on + */ + if (ovpn->mode == OVPN_MODE_MP) + netif_carrier_on(dev); netif_tx_start_all_queues(dev); return 0; }