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 if (key)
20 kfree(key->key);
21 }
22
23 extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
24 const struct ceph_crypto_key *src);
25 extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
26 void **p, void *end);
27 extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
28 void **p, void *end);
29 extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
30
31 /* crypto.c */
32 extern int ceph_decrypt(struct ceph_crypto_key *secret,
33 void *dst, size_t *dst_len,
34 const void *src, size_t src_len);
35 extern int ceph_encrypt(struct ceph_crypto_key *secret,
36 void *dst, size_t *dst_len,
37 const void *src, size_t src_len);
38 extern int ceph_decrypt2(struct ceph_crypto_key *secret,
39 void *dst1, size_t *dst1_len,
40 void *dst2, size_t *dst2_len,
41 const void *src, size_t src_len);
42 extern int ceph_encrypt2(struct ceph_crypto_key *secret,
43 void *dst, size_t *dst_len,
44 const void *src1, size_t src1_len,
45 const void *src2, size_t src2_len);
46 extern int ceph_crypto_init(void);
47 extern void ceph_crypto_shutdown(void);
48
49 /* armor.c */
50 extern int ceph_armor(char *dst, const char *src, const char *end);
51 extern int ceph_unarmor(char *dst, const char *src, const char *end);
52
53 #endif
54