1#ifndef _FS_CEPH_CRYPTO_H
2#define _FS_CEPH_CRYPTO_H
3
4#include <linux/ceph/types.h>
5#include <linux/ceph/buffer.h>
6
7/*
8 * cryptographic secret
9 */
10struct ceph_crypto_key {
11	int type;
12	struct ceph_timespec created;
13	int len;
14	void *key;
15};
16
17static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
18{
19	if (key)
20		kfree(key->key);
21}
22
23int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
24			  const struct ceph_crypto_key *src);
25int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
26int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
27int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
28
29/* crypto.c */
30int ceph_decrypt(struct ceph_crypto_key *secret,
31		 void *dst, size_t *dst_len,
32		 const void *src, size_t src_len);
33int ceph_encrypt(struct ceph_crypto_key *secret,
34		 void *dst, size_t *dst_len,
35		 const void *src, size_t src_len);
36int ceph_decrypt2(struct ceph_crypto_key *secret,
37		  void *dst1, size_t *dst1_len,
38		  void *dst2, size_t *dst2_len,
39		  const void *src, size_t src_len);
40int ceph_encrypt2(struct ceph_crypto_key *secret,
41		  void *dst, size_t *dst_len,
42		  const void *src1, size_t src1_len,
43		  const void *src2, size_t src2_len);
44int ceph_crypto_init(void);
45void ceph_crypto_shutdown(void);
46
47/* armor.c */
48int ceph_armor(char *dst, const char *src, const char *end);
49int ceph_unarmor(char *dst, const char *src, const char *end);
50
51#endif
52