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 */
14 struct 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
22 int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
23 const struct ceph_crypto_key *src);
24 int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
25 int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
26 int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
27 void ceph_crypto_key_destroy(struct ceph_crypto_key *key);
28
29 /* crypto.c */
30 int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
31 void *buf, int buf_len, int in_len, int *pout_len);
32 int ceph_crypto_init(void);
33 void ceph_crypto_shutdown(void);
34
35 /* armor.c */
36 int ceph_armor(char *dst, const char *src, const char *end);
37 int ceph_unarmor(char *dst, const char *src, const char *end);
38
39 #endif
40
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