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                 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