security/keys/encrypted-keys/encrypted.h

   1 #ifndef __ENCRYPTED_KEY_H
   2 #define __ENCRYPTED_KEY_H
   3
   4 #define ENCRYPTED_DEBUG 0
   5 #if defined(CONFIG_TRUSTED_KEYS) || \
   6   (defined(CONFIG_TRUSTED_KEYS_MODULE) && defined(CONFIG_ENCRYPTED_KEYS_MODULE))
   7 extern struct key *request_trusted_key(const char *trusted_desc,
   8                                        u8 **master_key, size_t *master_keylen);
   9 #else
  10 static inline struct key *request_trusted_key(const char *trusted_desc,
  11                                               u8 **master_key,
  12                                               size_t *master_keylen)
  13 {
  14         return ERR_PTR(-EOPNOTSUPP);
  15 }
  16 #endif
  17
  18 #if ENCRYPTED_DEBUG
  19 static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
  20 {
  21         print_hex_dump(KERN_ERR, "master key: ", DUMP_PREFIX_NONE, 32, 1,
  22                        master_key, master_keylen, 0);
  23 }
  24
  25 static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
  26 {
  27         print_hex_dump(KERN_ERR, "decrypted data: ", DUMP_PREFIX_NONE, 32, 1,
  28                        epayload->decrypted_data,
  29                        epayload->decrypted_datalen, 0);
  30 }
  31
  32 static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
  33                                        unsigned int encrypted_datalen)
  34 {
  35         print_hex_dump(KERN_ERR, "encrypted data: ", DUMP_PREFIX_NONE, 32, 1,
  36                        epayload->encrypted_data, encrypted_datalen, 0);
  37 }
  38
  39 static inline void dump_hmac(const char *str, const u8 *digest,
  40                              unsigned int hmac_size)
  41 {
  42         if (str)
  43                 pr_info("encrypted_key: %s", str);
  44         print_hex_dump(KERN_ERR, "hmac: ", DUMP_PREFIX_NONE, 32, 1, digest,
  45                        hmac_size, 0);
  46 }
  47 #else
  48 static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
  49 {
  50 }
  51
  52 static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
  53 {
  54 }
  55
  56 static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
  57                                        unsigned int encrypted_datalen)
  58 {
  59 }
  60
  61 static inline void dump_hmac(const char *str, const u8 *digest,
  62                              unsigned int hmac_size)
  63 {
  64 }
  65 #endif
  66 #endif