Commit 066b1030 authored by David Ahern's avatar David Ahern Committed by David S. Miller

net/ipv4: Add extack message that dev is required for ONLINK

Make IPv4 consistent with IPv6 and return an extack message that the
ONLINK flag requires a nexthop device.
Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7788174e
......@@ -797,8 +797,10 @@ static int fib_check_nh(struct fib_config *cfg, struct fib_nh *nh,
return -EINVAL;
}
dev = __dev_get_by_index(net, nh->nh_oif);
if (!dev)
if (!dev) {
NL_SET_ERR_MSG(extack, "Nexthop device required for onlink");
return -ENODEV;
}
if (!(dev->flags & IFF_UP)) {
NL_SET_ERR_MSG(extack,
"Nexthop device is not up");
......
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