mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
87ae9afdca
Not architecture specific code should not #include <asm/scatterlist.h>. This patch therefore either replaces them with #include <linux/scatterlist.h> or simply removes them if they were unused. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#ifndef _NET_ESP_H
|
|
#define _NET_ESP_H
|
|
|
|
#include <linux/crypto.h>
|
|
#include <net/xfrm.h>
|
|
#include <linux/scatterlist.h>
|
|
|
|
#define ESP_NUM_FAST_SG 4
|
|
|
|
struct esp_data
|
|
{
|
|
struct scatterlist sgbuf[ESP_NUM_FAST_SG];
|
|
|
|
/* Confidentiality */
|
|
struct {
|
|
int padlen; /* 0..255 */
|
|
/* ivlen is offset from enc_data, where encrypted data start.
|
|
* It is logically different of crypto_tfm_alg_ivsize(tfm).
|
|
* We assume that it is either zero (no ivec), or
|
|
* >= crypto_tfm_alg_ivsize(tfm). */
|
|
int ivlen;
|
|
int ivinitted;
|
|
u8 *ivec; /* ivec buffer */
|
|
struct crypto_blkcipher *tfm; /* crypto handle */
|
|
} conf;
|
|
|
|
/* Integrity. It is active when icv_full_len != 0 */
|
|
struct {
|
|
u8 *work_icv;
|
|
int icv_full_len;
|
|
int icv_trunc_len;
|
|
struct crypto_hash *tfm;
|
|
} auth;
|
|
};
|
|
|
|
extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
|
|
|
|
static inline int esp_mac_digest(struct esp_data *esp, struct sk_buff *skb,
|
|
int offset, int len)
|
|
{
|
|
struct hash_desc desc;
|
|
int err;
|
|
|
|
desc.tfm = esp->auth.tfm;
|
|
desc.flags = 0;
|
|
|
|
err = crypto_hash_init(&desc);
|
|
if (unlikely(err))
|
|
return err;
|
|
err = skb_icv_walk(skb, &desc, offset, len, crypto_hash_update);
|
|
if (unlikely(err))
|
|
return err;
|
|
return crypto_hash_final(&desc, esp->auth.work_icv);
|
|
}
|
|
|
|
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
|