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| author |   Steffen Klassert <steffen.klassert@secunet.com> | 2017-04-14 10:05:44 +0200 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2017-04-14 10:05:44 +0200 |
| commit | 9d389d7f84bbb3a294eb05f7dfe2076e291fc150 (patch) | |
| tree | 64d17699b5fd95a19ebf2432453e3cdf51dfdac6 /include/net | |
| parent | net: Add ESP offload features (diff) | |
| download | linux-dev-9d389d7f84bbb3a294eb05f7dfe2076e291fc150.tar.xz linux-dev-9d389d7f84bbb3a294eb05f7dfe2076e291fc150.zip | |
xfrm: Add a xfrm type offload.
We add a struct xfrm_type_offload so that we have the offloaded
codepath separated to the non offloaded codepath. With this the
non offloade and the offloaded codepath can coexist.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/xfrm.h | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 9e3dc7b81a4d..159342f3e72b 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -222,6 +222,8 @@ struct xfrm_state { struct xfrm_mode *inner_mode_iaf; struct xfrm_mode *outer_mode; + const struct xfrm_type_offload *type_offload; + /* Security context */ struct xfrm_sec_ctx *security; @@ -314,12 +316,14 @@ void km_state_expired(struct xfrm_state *x, int hard, u32 portid); int __xfrm_state_delete(struct xfrm_state *x); struct xfrm_state_afinfo { - unsigned int family; - unsigned int proto; - __be16 eth_proto; - struct module *owner; - const struct xfrm_type *type_map[IPPROTO_MAX]; - struct xfrm_mode *mode_map[XFRM_MODE_MAX]; + unsigned int family; + unsigned int proto; + __be16 eth_proto; + struct module *owner; + const struct xfrm_type *type_map[IPPROTO_MAX]; + const struct xfrm_type_offload *type_offload_map[IPPROTO_MAX]; + struct xfrm_mode *mode_map[XFRM_MODE_MAX]; + int (*init_flags)(struct xfrm_state *x); void (*init_tempsel)(struct xfrm_selector *sel, const struct flowi *fl); @@ -380,6 +384,18 @@ struct xfrm_type { int xfrm_register_type(const struct xfrm_type *type, unsigned short family); int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family); +struct xfrm_type_offload { + char *description; + struct module *owner; + u8 proto; + void (*encap)(struct xfrm_state *, struct sk_buff *pskb); + int (*input_tail)(struct xfrm_state *x, struct sk_buff *skb); + int (*xmit)(struct xfrm_state *, struct sk_buff *pskb, netdev_features_t features); +}; + +int xfrm_register_type_offload(const struct xfrm_type_offload *type, unsigned short family); +int xfrm_unregister_type_offload(const struct xfrm_type_offload *type, unsigned short family); + struct xfrm_mode { /* * Remove encapsulation header. |