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Wed, 18 Dec 2024 17:42:04 -0800 (PST) From: Antonio Quartulli Date: Thu, 19 Dec 2024 02:41:58 +0100 Subject: [PATCH net-next v16 04/26] ovpn: keep carrier always on for MP interfaces Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241219-b4-ovpn-v16-4-3e3001153683@openvpn.net> References: <20241219-b4-ovpn-v16-0-3e3001153683@openvpn.net> In-Reply-To: <20241219-b4-ovpn-v16-0-3e3001153683@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=RY/Tuspo1DCFRvpCKqQYIvf8w9XDMBN0DkDSzZ4QpY8=; b=owEBbQGS/pANAwAIAQtw5TqgONWHAcsmYgBnY3oU4n6fLWUI45C9vC+BafZyKqIvpe6X/9OV8 A5AxTVY2faJATMEAAEIAB0WIQSZq9xs+NQS5N5fwPwLcOU6oDjVhwUCZ2N6FAAKCRALcOU6oDjV h/YcB/9om0FTOUTpVaEvCyRaJaTJrzfntFwGe2nLA2kd9FG09sb7tJNzhhmDHidGqkSLy9KBiXP gTtb+doXJ4DcPdj9z9He54zdhJ7i7oHEmxpp1z8sPvjdeAY1HWxpHqHJORClRhf0d+lNXtAeKRt 6Db8Vpa9FeKnFVs0b5bPeZH+nqe0QKb1rkITJK/+WGCnqRg9WI8QkY4jUK52J936nQzMaOskGM+ 2O61zRjt5+dmVD00C7E3QT6OLz02QvBRs23Q+j/2vOSFoukS/vwyzgdvVoAKwautHrRgdcRazWq 52nInmYM+EX6UTR4mQ5HnnYFUm8TMUZwS5jMQAQBJL/7rIU0 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 d3eebab7fa528cb648141021ab513c3ed687e698..97fcf284c06654a6581be592e45= f77f0f78f566f 100644 --- a/drivers/net/ovpn/main.c +++ b/drivers/net/ovpn/main.c @@ -23,6 +23,15 @@ =20 static int ovpn_net_open(struct net_device *dev) { + struct ovpn_priv *ovpn =3D 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 =3D=3D OVPN_MODE_MP) + netif_carrier_on(dev); netif_tx_start_all_queues(dev); return 0; } --=20 2.45.2