• Nicolas Dichtel's avatar
    vxlan: add x-netns support · f01ec1c0
    Nicolas Dichtel authored
    This patch allows to switch the netns when packet is encapsulated or
    decapsulated.
    The vxlan socket is openned into the i/o netns, ie into the netns where
    encapsulated packets are received. The socket lookup is done into this netns to
    find the corresponding vxlan tunnel. After decapsulation, the packet is
    injecting into the corresponding interface which may stand to another netns.
    
    When one of the two netns is removed, the tunnel is destroyed.
    
    Configuration example:
    ip netns add netns1
    ip netns exec netns1 ip link set lo up
    ip link add vxlan10 type vxlan id 10 group 239.0.0.10 dev eth0 dstport 0
    ip link set vxlan10 netns netns1
    ip netns exec netns1 ip addr add 192.168.0.249/24 broadcast 192.168.0.255 dev vxlan10
    ip netns exec netns1 ip link set vxlan10 up
    Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    f01ec1c0
vxlan.c 74.3 KB