LXR linux/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))
   7extern struct key *request_trusted_key(const char *trusted_desc,
   8                                       const u8 **master_key, size_t *master_keylen);
   9#else
  10static inline struct key *request_trusted_key(const char *trusted_desc,
  11                                              const u8 **master_key,
  12                                              size_t *master_keylen)
  13{
  14        return ERR_PTR(-EOPNOTSUPP);
  15}
  16#endif
  17
  18#if ENCRYPTED_DEBUG
  19static 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
  25static 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
  32static 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
  39static 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
  48static inline void dump_master_key(const u8 *master_key, size_t master_keylen)
  49{
  50}
  51
  52static inline void dump_decrypted_data(struct encrypted_key_payload *epayload)
  53{
  54}
  55
  56static inline void dump_encrypted_data(struct encrypted_key_payload *epayload,
  57                                       unsigned int encrypted_datalen)
  58{
  59}
  60
  61static inline void dump_hmac(const char *str, const u8 *digest,
  62                             unsigned int hmac_size)
  63{
  64}
  65#endif
  66#endif
  67