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geli v5 (including rekeying support)

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-04-24 17:15:55 +02:00
parent 3e90811d88
commit 88ac3146d6
5 changed files with 79 additions and 11 deletions
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2
include/grub/crypto.h
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@ -244,7 +244,7 @@ grub_crypto_hmac_fini (struct grub_crypto_hmac_handle *hnd, void *out);
gcry_err_code_t
grub_crypto_hmac_buffer (const struct gcry_md_spec *md,
const void *key, grub_size_t keylen,
void *data, grub_size_t datalen, void *out);
const void *data, grub_size_t datalen, void *out);
extern gcry_md_spec_t _gcry_digest_spec_md5;
extern gcry_md_spec_t _gcry_digest_spec_sha1;

13
include/grub/cryptodisk.h
View file

@ -48,6 +48,12 @@ typedef enum
#define GRUB_CRYPTODISK_GF_LOG_BYTES (GRUB_CRYPTODISK_GF_LOG_SIZE - 3)
#define GRUB_CRYPTODISK_GF_BYTES (1U << GRUB_CRYPTODISK_GF_LOG_BYTES)
struct grub_cryptodisk;
typedef gcry_err_code_t
(*grub_cryptodisk_rekey_func_t) (struct grub_cryptodisk *dev,
grub_uint64_t zoneno);
struct grub_cryptodisk
{
char *source;
@ -74,6 +80,11 @@ struct grub_cryptodisk
int cheat_fd;
#endif
int log_sector_size;
grub_cryptodisk_rekey_func_t rekey;
int rekey_shift;
grub_uint8_t rekey_key[64];
grub_uint64_t last_rekey;
int rekey_derived_size;
struct grub_cryptodisk *next;
};
typedef struct grub_cryptodisk *grub_cryptodisk_t;
@ -82,7 +93,7 @@ gcry_err_code_t
grub_cryptodisk_setkey (grub_cryptodisk_t dev,
grub_uint8_t *key, grub_size_t keysize);
gcry_err_code_t
grub_cryptodisk_decrypt (const struct grub_cryptodisk *dev,
grub_cryptodisk_decrypt (struct grub_cryptodisk *dev,
grub_uint8_t * data, grub_size_t len,
grub_disk_addr_t sector);
grub_err_t