Message ID | 20250318-b4-ovpn-v24-4-3ec4ab5c4a77@openvpn.net (mailing list archive) |
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Mon, 17 Mar 2025 18:41:05 -0700 (PDT) From: Antonio Quartulli <antonio@openvpn.net> Date: Tue, 18 Mar 2025 02:40:39 +0100 Subject: [PATCH net-next v24 04/23] ovpn: keep carrier always on for MP interfaces Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: <linux-kselftest.vger.kernel.org> List-Subscribe: <mailto:linux-kselftest+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-kselftest+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250318-b4-ovpn-v24-4-3ec4ab5c4a77@openvpn.net> References: <20250318-b4-ovpn-v24-0-3ec4ab5c4a77@openvpn.net> In-Reply-To: <20250318-b4-ovpn-v24-0-3ec4ab5c4a77@openvpn.net> To: netdev@vger.kernel.org, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Donald Hunter <donald.hunter@gmail.com>, Antonio Quartulli <antonio@openvpn.net>, Shuah Khan <shuah@kernel.org>, sd@queasysnail.net, ryazanov.s.a@gmail.com, Andrew Lunn <andrew+netdev@lunn.ch> Cc: Simon Horman <horms@kernel.org>, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Xiao Liang <shaw.leon@gmail.com> X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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Series |
Introducing OpenVPN Data Channel Offload
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expand
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diff --git a/drivers/net/ovpn/main.c b/drivers/net/ovpn/main.c index b19f1406d87d5a1ed45b00133d642b1ad9f4f6f7..15802dfd26fcbcad42c387d42f665b8b47604e8a 100644 --- a/drivers/net/ovpn/main.c +++ b/drivers/net/ovpn/main.c @@ -21,7 +21,22 @@ #include "io.h" #include "proto.h" +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); + return 0; +} + static const struct net_device_ops ovpn_netdev_ops = { + .ndo_open = ovpn_net_open, .ndo_start_xmit = ovpn_net_xmit, };
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 <antonio@openvpn.net> --- drivers/net/ovpn/main.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)