net: Add struct for fib dump filter
Add struct fib_dump_filter for options on limiting which routes are
returned in a dump request. The current list is table id, protocol,
route type, rtm_flags and nexthop device index. struct net is needed
to lookup the net_device from the index.
Declare the filter for each route dump handler and plumb the new
arguments from dump handlers to ip_valid_fib_dump_req.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index d7563ef..dbd5166 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2458,10 +2458,13 @@ static void mrt6msg_netlink_event(struct mr_table *mrt, struct sk_buff *pkt)
static int ip6mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
{
const struct nlmsghdr *nlh = cb->nlh;
+ struct fib_dump_filter filter = {};
if (cb->strict_check) {
- int err = ip_valid_fib_dump_req(nlh, cb->extack);
+ int err;
+ err = ip_valid_fib_dump_req(sock_net(skb->sk), nlh,
+ &filter, cb->extack);
if (err < 0)
return err;
}
