1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _FS_CEPH_CRYPTO_H
3#define _FS_CEPH_CRYPTO_H
4
5#include <linux/ceph/types.h>
6#include <linux/ceph/buffer.h>
7
8#define CEPH_KEY_LEN 16
9#define CEPH_MAX_CON_SECRET_LEN 64
10
11/*
12 * cryptographic secret
13 */
14struct ceph_crypto_key {
15 int type;
16 struct ceph_timespec created;
17 int len;
18 void *key;
19 struct crypto_sync_skcipher *tfm;
20};
21
22int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
23 const struct ceph_crypto_key *src);
24int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
25int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
26int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
27void ceph_crypto_key_destroy(struct ceph_crypto_key *key);
28
29/* crypto.c */
30int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
31 void *buf, int buf_len, int in_len, int *pout_len);
32int ceph_crypto_init(void);
33void ceph_crypto_shutdown(void);
34
35/* armor.c */
36int ceph_armor(char *dst, const char *src, const char *end);
37int ceph_unarmor(char *dst, const char *src, const char *end);
38
39#endif
40

source code of linux/net/ceph/crypto.h