• Ido Schimmel's avatar
    ipv6: Set nexthop flags upon carrier change · 27c6fa73
    Ido Schimmel authored
    Similar to IPv4, when the carrier of a netdev changes we should toggle
    the 'linkdown' flag on all the nexthops using it as their nexthop
    device.
    
    This will later allow us to test for the presence of this flag during
    route lookup and dump.
    
    Up until commit 4832c30d ("net: ipv6: put host and anycast routes on
    device with address") host and anycast routes used the loopback netdev
    as their nexthop device and thus were not marked with the 'linkdown'
    flag. The patch preserves this behavior and allows one to ping the local
    address even when the nexthop device does not have a carrier and the
    'ignore_routes_with_linkdown' sysctl is set.
    Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
    Acked-by: default avatarDavid Ahern <dsahern@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    27c6fa73
addrconf.c 161 KB