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 17 static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key) 18 { 19 if (key) { 20 kfree(key->key); 21 key->key = NULL; 22 } 23 } 24 25 int ceph_crypto_key_clone(struct ceph_crypto_key *dst, 26 const struct ceph_crypto_key *src); 27 int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end); 28 int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end); 29 int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in); 30 31 /* crypto.c */ 32 int ceph_decrypt(struct ceph_crypto_key *secret, 33 void *dst, size_t *dst_len, 34 const void *src, size_t src_len); 35 int ceph_encrypt(struct ceph_crypto_key *secret, 36 void *dst, size_t *dst_len, 37 const void *src, size_t src_len); 38 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 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 int ceph_crypto_init(void); 47 void ceph_crypto_shutdown(void); 48 49 /* armor.c */ 50 int ceph_armor(char *dst, const char *src, const char *end); 51 int ceph_unarmor(char *dst, const char *src, const char *end); 52 53 #endif 54