crypto.h revision 8323c3aa74cd92465350294567142d12ffdcc963 
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	kfree(key->key);
20}
21
22extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
23				 const struct ceph_crypto_key *src);
24extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
25				  void **p, void *end);
26extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
27				  void **p, void *end);
28extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
29
30/* crypto.c */
31extern int ceph_decrypt(struct ceph_crypto_key *secret,
32			void *dst, size_t *dst_len,
33			const void *src, size_t src_len);
34extern int ceph_encrypt(struct ceph_crypto_key *secret,
35			void *dst, size_t *dst_len,
36			const void *src, size_t src_len);
37extern int ceph_decrypt2(struct ceph_crypto_key *secret,
38			void *dst1, size_t *dst1_len,
39			void *dst2, size_t *dst2_len,
40			const void *src, size_t src_len);
41extern int ceph_encrypt2(struct ceph_crypto_key *secret,
42			 void *dst, size_t *dst_len,
43			 const void *src1, size_t src1_len,
44			 const void *src2, size_t src2_len);
45
46/* armor.c */
47extern int ceph_armor(char *dst, const char *src, const char *end);
48extern int ceph_unarmor(char *dst, const char *src, const char *end);
49
50#endif
51