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Mon, 09 Dec 2024 00:53:03 -0800 (PST) From: Antonio Quartulli Date: Mon, 09 Dec 2024 09:53:13 +0100 Subject: [PATCH net-next v14 04/22] 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: <20241209-b4-ovpn-v14-4-ea243cf16417@openvpn.net> References: <20241209-b4-ovpn-v14-0-ea243cf16417@openvpn.net> In-Reply-To: <20241209-b4-ovpn-v14-0-ea243cf16417@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 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=GchxL43RZVWbeeTak50ypiKEh4su8ul45OjPZ601Tf0=; b=owEBbQGS/pANAwAIAQtw5TqgONWHAcsmYgBnVrASuhJ8SomcRw/Bzmzr2Y19hlA+33/f0cqS/ GKIlPy9JieJATMEAAEIAB0WIQSZq9xs+NQS5N5fwPwLcOU6oDjVhwUCZ1awEgAKCRALcOU6oDjV h1QQB/40+Wah9gEJn6mPhTzYiTdwQIjnvBWxFDS8MIvjoF7o4G7K1E+NXhKKaSTIkrJ6qEhnfGi ESnpi8UQCPf8jqbzXXqxeY//DHM0uTJU/oDzUIDEgBozH60h+lTkDHxL3Nyrcey8NluK60C+h0R CSSQbE84dyB51WkbHToLg06AcBo2b4r8cBEA26lZW9MQ/l5oqEfotrA8g/xiFxjfnAfbGQ31G7l TsYhJbFfosxAI0ggWGunwvPUaYgk03YF8j/DS3q5l/YK+QYqFm9SdW/wQQmDTUIA9j0/Q2RWoCf G5yQh/78yKCqpp/q/vjaAadZ9/wOvex72nYI/cIeo1hgJKH8 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 60954c5b2b9254db1d24d01ac383935765c7ce5b..274d6166741ef2d6275a252d0c042bc66f8f41f7 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; }