diff options
Diffstat (limited to 'include/net/xfrm.h')
| -rw-r--r-- | include/net/xfrm.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 138c1868be1..a9dbe091ae5 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -258,6 +258,7 @@ extern int __xfrm_state_delete(struct xfrm_state *x); struct xfrm_state_afinfo { unsigned int family; unsigned int proto; + unsigned int eth_proto; struct module *owner; struct xfrm_type *type_map[IPPROTO_MAX]; struct xfrm_mode *mode_map[XFRM_MODE_MAX]; @@ -268,6 +269,8 @@ struct xfrm_state_afinfo { int (*tmpl_sort)(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n); int (*state_sort)(struct xfrm_state **dst, struct xfrm_state **src, int n); int (*output)(struct sk_buff *skb); + int (*extract_input)(struct xfrm_state *x, + struct sk_buff *skb); int (*extract_output)(struct xfrm_state *x, struct sk_buff *skb); }; @@ -302,6 +305,27 @@ extern int xfrm_register_type(struct xfrm_type *type, unsigned short family); extern int xfrm_unregister_type(struct xfrm_type *type, unsigned short family); struct xfrm_mode { + /* + * Remove encapsulation header. + * + * The IP header will be moved over the top of the encapsulation + * header. + * + * On entry, the transport header shall point to where the IP header + * should be and the network header shall be set to where the IP + * header currently is. skb->data shall point to the start of the + * payload. + */ + int (*input2)(struct xfrm_state *x, struct sk_buff *skb); + + /* + * This is the actual input entry point. + * + * For transport mode and equivalent this would be identical to + * input2 (which does not need to be set). While tunnel mode + * and equivalent would set this to the tunnel encapsulation function + * xfrm4_prepare_input that would in turn call input2. + */ int (*input)(struct xfrm_state *x, struct sk_buff *skb); /* @@ -1093,8 +1117,10 @@ extern void xfrm_replay_advance(struct xfrm_state *x, __be32 seq); extern void xfrm_replay_notify(struct xfrm_state *x, int event); extern int xfrm_state_mtu(struct xfrm_state *x, int mtu); extern int xfrm_init_state(struct xfrm_state *x); +extern int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm_output(struct sk_buff *skb); extern int xfrm4_extract_header(struct sk_buff *skb); +extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type); extern int xfrm4_rcv(struct sk_buff *skb); @@ -1110,6 +1136,7 @@ extern int xfrm4_output(struct sk_buff *skb); extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm6_extract_header(struct sk_buff *skb); +extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi); extern int xfrm6_rcv(struct sk_buff *skb); extern int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr, |