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Commit 3288af08 authored by Jiri Benc's avatar Jiri Benc Committed by David S. Miller
Browse files

vxlan: move GBP header parsing to a separate function 



To make vxlan_udp_encap_recv shorter and more comprehensible.

Signed-off-by: default avatarJiri Benc <jbenc@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent be5cfeab

drivers/net/vxlan.c

+19 −14
Original line number Diff line number Diff line
@@ -1156,6 +1156,24 @@ static bool vxlan_remcsum(struct sk_buff *skb, u32 vxflags, __be32 vni_field) 
	return true;

}



static void vxlan_parse_gbp_hdr(struct sk_buff *skb, struct vxlan_metadata *md,

				struct metadata_dst *tun_dst)

{

	struct vxlanhdr_gbp *gbp;



	gbp = (struct vxlanhdr_gbp *)vxlan_hdr(skb);

	md->gbp = ntohs(gbp->policy_id);



	if (tun_dst)

		tun_dst->u.tun_info.key.tun_flags |= TUNNEL_VXLAN_OPT;



	if (gbp->dont_learn)

		md->gbp |= VXLAN_GBP_DONT_LEARN;



	if (gbp->policy_applied)

		md->gbp |= VXLAN_GBP_POLICY_APPLIED;

}



static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff *skb,

		      struct vxlan_metadata *md, __be32 vni,

		      struct metadata_dst *tun_dst)
@@ -1304,20 +1322,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb) 
	 * used by VXLAN extensions if explicitly requested.

	 */

	if ((flags & VXLAN_HF_GBP) && (vs->flags & VXLAN_F_GBP)) {

		struct vxlanhdr_gbp *gbp;



		gbp = (struct vxlanhdr_gbp *)vxlan_hdr(skb);

		md->gbp = ntohs(gbp->policy_id);



		if (tun_dst)

			tun_dst->u.tun_info.key.tun_flags |= TUNNEL_VXLAN_OPT;



		if (gbp->dont_learn)

			md->gbp |= VXLAN_GBP_DONT_LEARN;



		if (gbp->policy_applied)

			md->gbp |= VXLAN_GBP_POLICY_APPLIED;



		vxlan_parse_gbp_hdr(skb, md, tun_dst);

		flags &= ~VXLAN_GBP_USED_BITS;

	}