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63487babf0
Move fou_build_header out of ip_tunnel.c and into fou.c splitting it up into fou_build_header, gue_build_header, and fou_build_udp. This allows for other users for TX of FOU or GUE. Change ip_tunnel_encap to call fou_build_header or gue_build_header based on the tunnel encapsulation type. Similarly, added fou_encap_hlen and gue_encap_hlen functions which are called by ip_encap_hlen. New net/fou.h has prototypes and defines for this. Added NET_FOU_IP_TUNNELS configuration. When this is set, IP tunnels can use FOU/GUE and fou module is also selected. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
26 lines
599 B
C
26 lines
599 B
C
#ifndef __NET_FOU_H
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#define __NET_FOU_H
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#include <linux/skbuff.h>
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#include <net/flow.h>
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#include <net/gue.h>
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#include <net/ip_tunnels.h>
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#include <net/udp.h>
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int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
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u8 *protocol, struct flowi4 *fl4);
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int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
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u8 *protocol, struct flowi4 *fl4);
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static size_t fou_encap_hlen(struct ip_tunnel_encap *e)
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{
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return sizeof(struct udphdr);
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}
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static size_t gue_encap_hlen(struct ip_tunnel_encap *e)
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{
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return sizeof(struct udphdr) + sizeof(struct guehdr);
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}
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#endif
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