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authorTom Herbert <therbert@google.com>2014-11-12 11:54:09 -0800
committerDavid S. Miller <davem@davemloft.net>2014-11-12 15:01:35 -0500
commita8c5f90fb59a2d3bff0bd29adbb3e39fe0dd52f8 (patch)
tree49171c0ba2df50c16595901743dad7c0d32a7c33 /include/net/fou.h
parent4243cdc2c1e5a1375cc8397e8f9b06530f099c60 (diff)
ip_tunnel: Ops registration for secondary encap (fou, gue)
Instead of calling fou and gue functions directly from ip_tunnel use ops for these that were previously registered. This patch adds the logic to add and remove encapsulation operations for ip_tunnel, and modified fou (and gue) to register with ip_tunnels. This patch also addresses a circular dependency between ip_tunnel and fou that was causing link errors when CONFIG_NET_IP_TUNNEL=y and CONFIG_NET_FOU=m. References to fou an gue have been removed from ip_tunnel.c Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/fou.h')
-rw-r--r--include/net/fou.h25
1 files changed, 3 insertions, 22 deletions
diff --git a/include/net/fou.h b/include/net/fou.h
index 25b26ffcf1df..19b8a0c62a98 100644
--- a/include/net/fou.h
+++ b/include/net/fou.h
@@ -8,31 +8,12 @@
#include <net/ip_tunnels.h>
#include <net/udp.h>
+size_t fou_encap_hlen(struct ip_tunnel_encap *e);
+static size_t gue_encap_hlen(struct ip_tunnel_encap *e);
+
int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4);
int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4);
-static size_t fou_encap_hlen(struct ip_tunnel_encap *e)
-{
- return sizeof(struct udphdr);
-}
-
-static size_t gue_encap_hlen(struct ip_tunnel_encap *e)
-{
- size_t len;
- bool need_priv = false;
-
- len = sizeof(struct udphdr) + sizeof(struct guehdr);
-
- if (e->flags & TUNNEL_ENCAP_FLAG_REMCSUM) {
- len += GUE_PLEN_REMCSUM;
- need_priv = true;
- }
-
- len += need_priv ? GUE_LEN_PRIV : 0;
-
- return len;
-}
-
#endif