net/ceph/crypto.h

   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 }
  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