[XFRM] STATE: Add a hook to find offset to be inserted header in outbound.

[linux-drm-fsl-dcu.git] / include / net / xfrm.h

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index d9c40e713184b9adc3e3fad4cef3d061db2db449..eed48f832ce150772b437bd21a5f8e2b611680f0 100644 (file)
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -265,6 +265,7 @@ struct xfrm_type
        void                    (*destructor)(struct xfrm_state *);
        int                     (*input)(struct xfrm_state *, struct sk_buff *skb);
        int                     (*output)(struct xfrm_state *, struct sk_buff *pskb);
+       int                     (*hdr_offset)(struct xfrm_state *, struct sk_buff *, u8 **);
        /* Estimate maximal size of result of transformation of a dgram */
        u32                     (*get_max_size)(struct xfrm_state *, int size);
 };
@@ -960,6 +961,8 @@ extern u32 xfrm6_tunnel_alloc_spi(xfrm_address_t *saddr);
 extern void xfrm6_tunnel_free_spi(xfrm_address_t *saddr);
 extern u32 xfrm6_tunnel_spi_lookup(xfrm_address_t *saddr);
 extern int xfrm6_output(struct sk_buff *skb);
+extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
+                                u8 **prevhdr);
 
 #ifdef CONFIG_XFRM
 extern int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type);