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kernel/linux-imx6_3.14.28/security/keys/encrypted-keys/encrypted.h 1.81 KB
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  #ifndef __ENCRYPTED_KEY_H
  #define __ENCRYPTED_KEY_H
  
  #define ENCRYPTED_DEBUG 0
  #if defined(CONFIG_TRUSTED_KEYS) || \
    (defined(CONFIG_TRUSTED_KEYS_MODULE) && defined(CONFIG_ENCRYPTED_KEYS_MODULE))
  extern struct key *request_trusted_key(const char *trusted_desc,
  				       u8 **master_key, size_t *master_keylen);
  #else
  static inline struct key *request_trusted_key(const char *trusted_desc,
  					      u8 **master_key,
  					      size_t *master_keylen)
  {
  	return ERR_PTR(-EOPNOTSUPP);
  }
  #endif
  
  #if ENCRYPTED_DEBUG
  static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
  {
  	print_hex_dump(KERN_ERR, "master key: ", DUMP_PREFIX_NONE, 32, 1,
  		       master_key, master_keylen, 0);
  }
  
  static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
  {
  	print_hex_dump(KERN_ERR, "decrypted data: ", DUMP_PREFIX_NONE, 32, 1,
  		       epayload->decrypted_data,
  		       epayload->decrypted_datalen, 0);
  }
  
  static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
  				       unsigned int encrypted_datalen)
  {
  	print_hex_dump(KERN_ERR, "encrypted data: ", DUMP_PREFIX_NONE, 32, 1,
  		       epayload->encrypted_data, encrypted_datalen, 0);
  }
  
  static inline void dump_hmac(const char *str, const u8 *digest,
  			     unsigned int hmac_size)
  {
  	if (str)
  		pr_info("encrypted_key: %s", str);
  	print_hex_dump(KERN_ERR, "hmac: ", DUMP_PREFIX_NONE, 32, 1, digest,
  		       hmac_size, 0);
  }
  #else
  static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
  {
  }
  
  static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
  {
  }
  
  static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
  				       unsigned int encrypted_datalen)
  {
  }
  
  static inline void dump_hmac(const char *str, const u8 *digest,
  			     unsigned int hmac_size)
  {
  }
  #endif
  #endif