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#ifndef _NET_ESP_H
#define _NET_ESP_H
#include <linux/skbuff.h>
struct crypto_aead;
struct esp_data {
/* 0..255 */
int padlen;
/* Confidentiality & Integrity */
struct crypto_aead *aead;
#if CONFIG_INET_ESP_NR_REQ_CACHE > 0
#define ESP_NFRAGS_CACHE 10 /* total number of frag for cache */
#define ESP_REQ_CACHE_MAX CONFIG_INET_ESP_NR_REQ_CACHE
void *req_cache[ESP_REQ_CACHE_MAX];
atomic_t req_cache_cnt;
int req_cache_head;
int req_cache_tail;
#endif
int req_cache_size; /* request size without frag sg */
};
extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
struct ip_esp_hdr;
static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb)
{
return (struct ip_esp_hdr *)skb_transport_header(skb);
}
#endif
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