• David Ahern's avatar
    ipv4: Allow ipv6 gateway with ipv4 routes · d1566268
    David Ahern authored
    Add support for RTA_VIA and allow an IPv6 nexthop for v4 routes:
       $ ip ro add 172.16.1.0/24 via inet6 2001:db8::1 dev eth0
       $ ip ro ls
       ...
       172.16.1.0/24 via inet6 2001:db8::1 dev eth0
    
    For convenience and simplicity, userspace can use RTA_VIA to specify
    AF_INET or AF_INET6 gateway.
    
    The common fib_nexthop_info dump function compares the gateway address
    family to the nh_common family to know if the gateway should be encoded
    as RTA_VIA or RTA_GATEWAY.
    Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d1566268
fib_frontend.c 37.8 KB