kernel-ark/net/ceph/crypto.h
Tommi Virtanen 4b2a58abd1 libceph: Create a new key type "ceph".
This allows us to use existence of the key type as a feature test,
from userspace.

Signed-off-by: Tommi Virtanen <tommi.virtanen@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>
2011-03-29 12:11:24 -07:00

53 lines
1.5 KiB
C

#ifndef _FS_CEPH_CRYPTO_H
#define _FS_CEPH_CRYPTO_H
#include <linux/ceph/types.h>
#include <linux/ceph/buffer.h>
/*
* cryptographic secret
*/
struct ceph_crypto_key {
int type;
struct ceph_timespec created;
int len;
void *key;
};
static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
{
kfree(key->key);
}
extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
const struct ceph_crypto_key *src);
extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
void **p, void *end);
extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
void **p, void *end);
extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
/* crypto.c */
extern int ceph_decrypt(struct ceph_crypto_key *secret,
void *dst, size_t *dst_len,
const void *src, size_t src_len);
extern int ceph_encrypt(struct ceph_crypto_key *secret,
void *dst, size_t *dst_len,
const void *src, size_t src_len);
extern int ceph_decrypt2(struct ceph_crypto_key *secret,
void *dst1, size_t *dst1_len,
void *dst2, size_t *dst2_len,
const void *src, size_t src_len);
extern int ceph_encrypt2(struct ceph_crypto_key *secret,
void *dst, size_t *dst_len,
const void *src1, size_t src1_len,
const void *src2, size_t src2_len);
extern int ceph_crypto_init(void);
extern void ceph_crypto_shutdown(void);
/* armor.c */
extern int ceph_armor(char *dst, const char *src, const char *end);
extern int ceph_unarmor(char *dst, const char *src, const char *end);
#endif