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 */
10 struct ceph_crypto_key {
11 int type;
12 struct ceph_timespec created;
13 int len;
14 void *key;
15 };
16
ceph_crypto_key_destroy(struct ceph_crypto_key * key)17 static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
18 {
19 kfree(key->key);
20 }
21
22 extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
23 const struct ceph_crypto_key *src);
24 extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
25 void **p, void *end);
26 extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
27 void **p, void *end);
28 extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
29
30 /* crypto.c */
31 extern int ceph_decrypt(struct ceph_crypto_key *secret,
32 void *dst, size_t *dst_len,
33 const void *src, size_t src_len);
34 extern int ceph_encrypt(struct ceph_crypto_key *secret,
35 void *dst, size_t *dst_len,
36 const void *src, size_t src_len);
37 extern 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);
41 extern 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 extern int ceph_crypto_init(void);
46 extern void ceph_crypto_shutdown(void);
47
48 /* armor.c */
49 extern int ceph_armor(char *dst, const char *src, const char *end);
50 extern int ceph_unarmor(char *dst, const char *src, const char *end);
51
52 #endif
53