Commit 2384127e authored by Davide Caratti's avatar Davide Caratti Committed by Jakub Kicinski
Browse files

net/sched: act_tunnel_key: add support for "don't fragment" 



extend "act_tunnel_key" to allow specifying TUNNEL_DONT_FRAGMENT.

Suggested-by: default avatarIlya Maximets <i.maximets@ovn.org>
Reviewed-by: default avatarPedro Tammela <pctammela@mojatatu.com>
Acked-by: default avatarJamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: default avatarDavide Caratti <dcaratti@redhat.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 46e9acb7

include/uapi/linux/tc_act/tc_tunnel_key.h

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ enum { 
					 */

	TCA_TUNNEL_KEY_ENC_TOS,		/* u8 */

	TCA_TUNNEL_KEY_ENC_TTL,		/* u8 */

	TCA_TUNNEL_KEY_NO_FRAG,		/* flag */

	__TCA_TUNNEL_KEY_MAX,

};

net/sched/act_tunnel_key.c

+5 −0
Original line number Diff line number Diff line
@@ -420,6 +420,9 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla, 
		    nla_get_u8(tb[TCA_TUNNEL_KEY_NO_CSUM]))

			flags &= ~TUNNEL_CSUM;



		if (nla_get_flag(tb[TCA_TUNNEL_KEY_NO_FRAG]))

			flags |= TUNNEL_DONT_FRAGMENT;



		if (tb[TCA_TUNNEL_KEY_ENC_DST_PORT])

			dst_port = nla_get_be16(tb[TCA_TUNNEL_KEY_ENC_DST_PORT]);
@@ -747,6 +750,8 @@ static int tunnel_key_dump(struct sk_buff *skb, struct tc_action *a, 
				   key->tp_dst)) ||

		    nla_put_u8(skb, TCA_TUNNEL_KEY_NO_CSUM,

			       !(key->tun_flags & TUNNEL_CSUM)) ||

		    ((key->tun_flags & TUNNEL_DONT_FRAGMENT) &&

		     nla_put_flag(skb, TCA_TUNNEL_KEY_NO_FRAG)) ||

		    tunnel_key_opts_dump(skb, info))

			goto nla_put_failure;