11da177e4SLinus Torvalds #ifndef _NET_AH_H 21da177e4SLinus Torvalds #define _NET_AH_H 31da177e4SLinus Torvalds 42ad9afbfSSteffen Klassert #include <linux/skbuff.h> 51da177e4SLinus Torvalds 61da177e4SLinus Torvalds /* This is the maximum truncated ICV length that we know of. */ 71da177e4SLinus Torvalds #define MAX_AH_AUTH_LEN 12 81da177e4SLinus Torvalds 92ad9afbfSSteffen Klassert struct crypto_ahash; 102ad9afbfSSteffen Klassert 11fd2c3ef7SEric Dumazet struct ah_data { 121da177e4SLinus Torvalds int icv_full_len; 131da177e4SLinus Torvalds int icv_trunc_len; 141da177e4SLinus Torvalds 1549cbf952SSteffen Klassert struct crypto_ahash *ahash; 161da177e4SLinus Torvalds }; 171da177e4SLinus Torvalds 1887bdc48dSHerbert Xu struct ip_auth_hdr; 1987bdc48dSHerbert Xu 2087bdc48dSHerbert Xu static inline struct ip_auth_hdr *ip_auth_hdr(const struct sk_buff *skb) 2187bdc48dSHerbert Xu { 2287bdc48dSHerbert Xu return (struct ip_auth_hdr *)skb_transport_header(skb); 2387bdc48dSHerbert Xu } 2487bdc48dSHerbert Xu 251da177e4SLinus Torvalds #endif 26