ipv6: Add "offload" and "trap" indications to routes (bb3c4ab9) · Commits · 戴 / test

In a similar fashion to previous patch, add "offload" and "trap" indication to IPv6 routes. This is done by using two unused bits in 'struct fib6_info' to hold these indications. Capable drivers are expected to set these when processing the various in-kernel route notifications. Signed-off-by:

Ido Schimmel <idosch@mellanox.com> Reviewed-by:

Jiri Pirko <jiri@mellanox.com> Reviewed-by:

David Ahern <dsahern@gmail.com> Acked-by:

Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

include/net/ip6_fib.h

+10 −1

Original line number	Diff line number	Diff line
		@@ -192,7 +192,9 @@ struct fib6_info {
		dst_nopolicy:1,
		dst_host:1,
		fib6_destroying:1,
		unused:3;
		offload:1,
		trap:1,
		unused:1;

		struct rcu_head rcu;
		struct nexthop *nh;
		@@ -329,6 +331,13 @@ static inline void fib6_info_release(struct fib6_info *f6i)
		call_rcu(&f6i->rcu, fib6_info_destroy_rcu);
		}

		static inline void fib6_info_hw_flags_set(struct fib6_info *f6i, bool offload,
		bool trap)
		{
		f6i->offload = offload;
		f6i->trap = trap;
		}

		enum fib6_walk_state {
		#ifdef CONFIG_IPV6_SUBTREES
		FWS_S,

net/ipv6/route.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -5576,6 +5576,13 @@ static int rt6_fill_node(struct net net, struct sk_buff skb,
		expires -= jiffies;
		}

		if (!dst) {
		if (rt->offload)
		rtm->rtm_flags \|= RTM_F_OFFLOAD;
		if (rt->trap)
		rtm->rtm_flags \|= RTM_F_TRAP;
		}

		if (rtnl_put_cacheinfo(skb, dst, 0, expires, dst ? dst->error : 0) < 0)
		goto nla_put_failure;

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