1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _FS_CEPH_CRYPTO_H 3 #define _FS_CEPH_CRYPTO_H 4 5 #include <linux/ceph/types.h> 6 #include <linux/ceph/buffer.h> 7 8 #define CEPH_KEY_LEN 16 9 #define CEPH_MAX_CON_SECRET_LEN 64 10 11 /* 12 * cryptographic secret 13 */ 14 struct ceph_crypto_key { 15 int type; 16 struct ceph_timespec created; 17 int len; 18 void *key; 19 struct crypto_sync_skcipher *tfm; 20 }; 21 22 int ceph_crypto_key_clone(struct ceph_crypto_key *dst, 23 const struct ceph_crypto_key *src); 24 int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end); 25 int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in); 26 void ceph_crypto_key_destroy(struct ceph_crypto_key *key); 27 28 /* crypto.c */ 29 int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt, 30 void *buf, int buf_len, int in_len, int *pout_len); 31 int ceph_crypto_init(void); 32 void ceph_crypto_shutdown(void); 33 34 /* armor.c */ 35 int ceph_armor(char *dst, const char *src, const char *end); 36 int ceph_unarmor(char *dst, const char *src, const char *end); 37 38 #endif 39