fstype/luks_fs.h

   1 #ifndef __LINUX_LUKS_FS_H
   2 #define __LINUX_LUKS_FS_H
   3
   4 /* The basic structures of the luks partition header */
   5 #define LUKS_MAGIC_L            6
   6 #define LUKS_CIPHERNAME_L       32
   7 #define LUKS_CIPHERMODE_L       32
   8 #define LUKS_HASHSPEC_L         32
   9 #define LUKS_UUID_STRING_L      40
  10
  11 #define LUKS_MAGIC              "LUKS\xBA\xBE"
  12 #define LUKS_DIGESTSIZE         20
  13 #define LUKS_SALTSIZE           32
  14 #define LUKS_NUMKEYS            8
  15 #define LUKS_MKD_ITER           10
  16 #define LUKS_KEY_DISABLED       0x0000DEAD
  17 #define LUKS_KEY_ENABLED        0x00AC71F3
  18 #define LUKS_STRIPES            4000
  19
  20 /* On-disk "super block" */
  21 struct luks_partition_header {
  22         char    magic[LUKS_MAGIC_L];
  23         __be16  version;
  24         char    cipherName[LUKS_CIPHERNAME_L];
  25         char    cipherMode[LUKS_CIPHERMODE_L];
  26         char    hashSpec[LUKS_HASHSPEC_L];
  27         __be32  payloadOffset;
  28         __be32  keyBytes;
  29         char    mkDigest[LUKS_DIGESTSIZE];
  30         char    mkDigestSalt[LUKS_SALTSIZE];
  31         __be32  mkDigestIterations;
  32         char    uuid[LUKS_UUID_STRING_L];
  33
  34         struct {
  35                 __be32  active;
  36                 /* Parameters for PBKDF2 processing */
  37                 __be32  passwordIterations;
  38                 char    passwordSalt[LUKS_SALTSIZE];
  39                 __be32  keyMaterialOffset;
  40                 __be32  stripes;
  41         } keyblock[LUKS_NUMKEYS];
  42 };
  43
  44 #endif