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| author | Sven Eckelmann <sven@narfation.org> | 2022-02-28 01:32:40 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-15 14:15:02 +0200 |
| commit | d70c60cf2bdbe7ef08e227427fc3de99a93931d5 (patch) | |
| tree | 27379c4e138a3ef0566d1d48e8926d6a2c73c9f1 /drivers/net | |
| parent | b77104a64c534d7b72ea507027db9194e2bc926f (diff) | |
| download | linux-stable-d70c60cf2bdbe7ef08e227427fc3de99a93931d5.tar.gz linux-stable-d70c60cf2bdbe7ef08e227427fc3de99a93931d5.tar.bz2 linux-stable-d70c60cf2bdbe7ef08e227427fc3de99a93931d5.zip | |
macvtap: advertise link netns via netlink
[ Upstream commit a02192151b7dbf855084c38dca380d77c7658353 ]
Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is
added to rtnetlink messages. This fixes iproute2 which otherwise resolved
the link interface to an interface in the wrong namespace.
Test commands:
ip netns add nst
ip link add dummy0 type dummy
ip link add link macvtap0 link dummy0 type macvtap
ip link set macvtap0 netns nst
ip -netns nst link show macvtap0
Before:
10: macvtap0@gre0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500
link/ether 5e:8f:ae:1d:60:50 brd ff:ff:ff:ff:ff:ff
After:
10: macvtap0@if2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500
link/ether 5e:8f:ae:1d:60:50 brd ff:ff:ff:ff:ff:ff link-netnsid 0
Reported-by: Leonardo Mörlein <freifunk@irrelefant.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Link: https://lore.kernel.org/r/20220228003240.1337426-1-sven@narfation.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/macvtap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 9a10029caf83..085f1648a8a6 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -132,11 +132,17 @@ static void macvtap_setup(struct net_device *dev) dev->tx_queue_len = TUN_READQ_SIZE; } +static struct net *macvtap_link_net(const struct net_device *dev) +{ + return dev_net(macvlan_dev_real_dev(dev)); +} + static struct rtnl_link_ops macvtap_link_ops __read_mostly = { .kind = "macvtap", .setup = macvtap_setup, .newlink = macvtap_newlink, .dellink = macvtap_dellink, + .get_link_net = macvtap_link_net, .priv_size = sizeof(struct macvtap_dev), }; |