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udp_tunnel: add config option to bind to a device

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UDP tunnel sockets are always opened unbound to a specific device. This
patch allow the socket to be bound on a custom device, which
incidentally makes UDP tunnels VRF-aware if binding to an l3mdev.

Signed-off-by: Alexis Bauvin <abauvin@scaleway.com>
Reviewed-by: Amine Kherbouche <akherbouche@scaleway.com>
Tested-by: Amine Kherbouche <akherbouche@scaleway.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexis Bauvin
2018-12-03 10:54:38 +01:00
committed by David S. Miller
parent e3dd762772
commit da5095d052
3 changed files with 34 additions and 0 deletions
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include/net/udp_tunnel.h
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@@ -30,6 +30,7 @@ struct udp_port_cfg {
__be16 local_udp_port;
__be16 peer_udp_port;
int bind_ifindex;
unsigned int use_udp_checksums:1,
use_udp6_tx_checksums:1,
use_udp6_rx_checksums:1,