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         kfree(key->key);
  20 }
  21
  22 extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
  23                                  const struct ceph_crypto_key *src);
  24 extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
  25                                   void **p, void *end);
  26 extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
  27                                   void **p, void *end);
  28 extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
  29
  30 /* crypto.c */
  31 extern int ceph_decrypt(struct ceph_crypto_key *secret,
  32                         void *dst, size_t *dst_len,
  33                         const void *src, size_t src_len);
  34 extern int ceph_encrypt(struct ceph_crypto_key *secret,
  35                         void *dst, size_t *dst_len,
  36                         const void *src, size_t src_len);
  37 extern int ceph_decrypt2(struct ceph_crypto_key *secret,
  38                         void *dst1, size_t *dst1_len,
  39                         void *dst2, size_t *dst2_len,
  40                         const void *src, size_t src_len);
  41 extern int ceph_encrypt2(struct ceph_crypto_key *secret,
  42                          void *dst, size_t *dst_len,
  43                          const void *src1, size_t src1_len,
  44                          const void *src2, size_t src2_len);
  45 extern int ceph_crypto_init(void);
  46 extern void ceph_crypto_shutdown(void);
  47
  48 /* armor.c */
  49 extern int ceph_armor(char *dst, const char *src, const char *end);
  50 extern int ceph_unarmor(char *dst, const char *src, const char *end);
  51
  52 #endif