net/ceph/crypto.h

   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_encode(struct ceph_crypto_key *key, void **p, void *end);
  25 int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
  26 int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
  27 void ceph_crypto_key_destroy(struct ceph_crypto_key *key);
  28
  29 /* crypto.c */
  30 int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
  31                void *buf, int buf_len, int in_len, int *pout_len);
  32 int ceph_crypto_init(void);
  33 void ceph_crypto_shutdown(void);
  34
  35 /* armor.c */
  36 int ceph_armor(char *dst, const char *src, const char *end);
  37 int ceph_unarmor(char *dst, const char *src, const char *end);
  38
  39 #endif