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From: Julian Orth <ju.orth@gmail.com>
To: wireguard@lists.zx2c4.com
Subject: [PATCH 3/7] device: store a copy of the device net
Date: Sat,  8 Sep 2018 14:18:37 +0200
Message-ID: <20180908121841.8372-4-ju.orth@gmail.com> (raw)
In-Reply-To: <20180908121841.8372-1-ju.orth@gmail.com>

---
 src/device.c | 5 +++--
 src/device.h | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/device.c b/src/device.c
index 92aefc4..cb54ae1 100644
--- a/src/device.c
+++ b/src/device.c
@@ -396,10 +396,11 @@ static int netdevice_notification(struct notifier_block *nb,
 	if (action != NETDEV_REGISTER || dev->netdev_ops != &netdev_ops)
 		return 0;
 
-	if (dev_net(dev) == wg->transit_net && wg->have_transit_net_ref) {
+	wg->dev_net = dev_net(dev);
+	if (wg->dev_net == wg->transit_net && wg->have_transit_net_ref) {
 		put_net(wg->transit_net);
 		wg->have_transit_net_ref = false;
-	} else if (dev_net(dev) != wg->transit_net &&
+	} else if (wg->dev_net != wg->transit_net &&
 		   !wg->have_transit_net_ref) {
 		wg->have_transit_net_ref = true;
 		get_net(wg->transit_net);
diff --git a/src/device.h b/src/device.h
index 4b7552c..0bd25f2 100644
--- a/src/device.h
+++ b/src/device.h
@@ -41,6 +41,7 @@ struct wireguard_device {
 	struct crypt_queue encrypt_queue, decrypt_queue;
 	struct sock __rcu *sock4, *sock6;
 	struct net *transit_net;
+	struct net *dev_net;
 	struct noise_static_identity static_identity;
 	struct workqueue_struct *handshake_receive_wq, *handshake_send_wq;
 	struct workqueue_struct *packet_crypt_wq;
-- 
2.18.0

  parent reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-08 12:18 [PATCH 0/7] Allow changing the transit namespace Julian Orth
2018-09-08 12:18 ` [PATCH 1/7] device: protect socket_init with device_update_lock Julian Orth
2018-09-08 12:18 ` [PATCH 2/7] device: rename creating_net to transit_net Julian Orth
2018-09-08 12:18 ` Julian Orth [this message]
2018-09-08 12:18 ` [PATCH 4/7] socket: allow modification of transit_net Julian Orth
2018-09-08 12:18 ` [PATCH 5/7] netlink: allow setting of transit net Julian Orth
2018-09-08 14:03   ` Aaron Jones
2018-09-08 14:20     ` Julian Orth
2018-09-08 14:28       ` Aaron Jones
2018-09-08 12:18 ` [PATCH 6/7] tools: " Julian Orth
2018-09-08 14:04   ` Aaron Jones
2018-09-08 14:09   ` Aaron Jones
2018-09-08 14:18     ` Julian Orth
2018-09-08 14:25       ` Aaron Jones
2018-09-08 12:18 ` [PATCH 7/7] tests: add test for transit-net Julian Orth
2018-09-08 13:39 ` [PATCH 0/7] Allow changing the transit namespace Bruno Wolff III
2018-09-08 13:49   ` Julian Orth

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