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Wed, 12 Mar 2025 13:54:29 -0700 (PDT) From: Antonio Quartulli Date: Wed, 12 Mar 2025 21:54:13 +0100 Subject: [PATCH net-next v23 04/23] 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: <20250312-b4-ovpn-v23-4-76066bc0a30c@openvpn.net> References: <20250312-b4-ovpn-v23-0-76066bc0a30c@openvpn.net> In-Reply-To: <20250312-b4-ovpn-v23-0-76066bc0a30c@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/pANAwAIAQtw5TqgONWHAcsmYgBn0fR7TuAOuQwpbA7wiXPSYho5YDAWVs5A6/djU GMLf/ub1MmJATMEAAEIAB0WIQSZq9xs+NQS5N5fwPwLcOU6oDjVhwUCZ9H0ewAKCRALcOU6oDjV h6/AB/9PEEz/xZPMposrtUqAnifKhJ4ydKe03q5K2SVgk0vgiwoihZwmZCAUzHXiVZQLwRdmzA7 ksixxTC3HMCbSRZuqIiT8sw4zhIEZmU/xSgPLrRKjXBS4+vMMJsDR7ZSFdAq2NnQoSLY3ClWbtL mMwW10nLZE6CaQPFhTdEeTWnwV3OmFaG5+pV2ExP7BBqsjU5IBndmnSB3UdOn8ONH6hmfrgZiG+ sF+b6brsibQHzCoEw3CzqDZGvh2thjZBIEI8DgkQqy+LOoh8pHOzvp5kFg294/rZIKL4mMLGnEp 8Z/mQp6CFHwvUSyBjlTqmlliiDSoF82eFqsIhjL4PRNnkr1S 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..c5e75108b8da5eabde25426c6d6= 668fb14491986 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 2.48.1