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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FS_CEPH_CRYPTO_H
#define _FS_CEPH_CRYPTO_H
#include <linux/ceph/types.h>
#include <linux/ceph/buffer.h>
#define CEPH_KEY_LEN 16
#define CEPH_MAX_CON_SECRET_LEN 64
/*
* cryptographic secret
*/
struct ceph_crypto_key {
int type;
struct ceph_timespec created;
int len;
void *key;
struct crypto_sync_skcipher *tfm;
};
int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
const struct ceph_crypto_key *src);
int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
void ceph_crypto_key_destroy(struct ceph_crypto_key *key);
/* crypto.c */
int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
void *buf, int buf_len, int in_len, int *pout_len);
int ceph_crypto_init(void);
void ceph_crypto_shutdown(void);
/* armor.c */
int ceph_armor(char *dst, const char *src, const char *end);
int ceph_unarmor(char *dst, const char *src, const char *end);
#endif
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