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| author |   Tom Herbert <therbert@google.com> | 2014-11-04 09:06:51 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-11-05 16:30:02 -0500 |
| commit | 63487babf08d6d67483c67ed21d8cea6674a44ec (patch) | |
| tree | f0e11d54e33a689a25bed43f7bd3c720b49a6bcd /include/net/fou.h | |
| parent | Merge branch 'stmmac-next' (diff) | |
| download | linux-dev-63487babf08d6d67483c67ed21d8cea6674a44ec.tar.xz linux-dev-63487babf08d6d67483c67ed21d8cea6674a44ec.zip | |
net: Move fou_build_header into fou.c and refactor
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>
Diffstat (limited to 'include/net/fou.h')
| -rw-r--r-- | include/net/fou.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/net/fou.h b/include/net/fou.h new file mode 100644 index 000000000000..cf4ce8874f92 --- /dev/null +++ b/include/net/fou.h @@ -0,0 +1,26 @@ +#ifndef __NET_FOU_H +#define __NET_FOU_H + +#include <linux/skbuff.h> + +#include <net/flow.h> +#include <net/gue.h> +#include <net/ip_tunnels.h> +#include <net/udp.h> + +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) +{ + return sizeof(struct udphdr) + sizeof(struct guehdr); +} + +#endif |