security/keys/encrypted-keys/encrypted.h

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