277 lines
8.3 KiB
C
277 lines
8.3 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006
|
|
* 2007, 2008, 2009 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* Contains elements based on gcrypt-module.h and gcrypt.h.in.
|
|
If it's changed please update this file. */
|
|
|
|
#ifndef GRUB_CRYPTO_HEADER
|
|
#define GRUB_CRYPTO_HEADER 1
|
|
|
|
#include <grub/symbol.h>
|
|
#include <grub/types.h>
|
|
#include <grub/err.h>
|
|
|
|
typedef enum
|
|
{
|
|
GPG_ERR_NO_ERROR,
|
|
GPG_ERR_BAD_MPI,
|
|
GPG_ERR_BAD_SECKEY,
|
|
GPG_ERR_BAD_SIGNATURE,
|
|
GPG_ERR_CIPHER_ALGO,
|
|
GPG_ERR_CONFLICT,
|
|
GPG_ERR_DECRYPT_FAILED,
|
|
GPG_ERR_DIGEST_ALGO,
|
|
GPG_ERR_GENERAL,
|
|
GPG_ERR_INTERNAL,
|
|
GPG_ERR_INV_ARG,
|
|
GPG_ERR_INV_CIPHER_MODE,
|
|
GPG_ERR_INV_FLAG,
|
|
GPG_ERR_INV_KEYLEN,
|
|
GPG_ERR_INV_OBJ,
|
|
GPG_ERR_INV_OP,
|
|
GPG_ERR_INV_SEXP,
|
|
GPG_ERR_INV_VALUE,
|
|
GPG_ERR_MISSING_VALUE,
|
|
GPG_ERR_NO_ENCRYPTION_SCHEME,
|
|
GPG_ERR_NO_OBJ,
|
|
GPG_ERR_NO_PRIME,
|
|
GPG_ERR_NO_SIGNATURE_SCHEME,
|
|
GPG_ERR_NOT_FOUND,
|
|
GPG_ERR_NOT_IMPLEMENTED,
|
|
GPG_ERR_NOT_SUPPORTED,
|
|
GPG_ERROR_CFLAGS,
|
|
GPG_ERR_PUBKEY_ALGO,
|
|
GPG_ERR_SELFTEST_FAILED,
|
|
GPG_ERR_TOO_SHORT,
|
|
GPG_ERR_UNSUPPORTED,
|
|
GPG_ERR_WEAK_KEY,
|
|
GPG_ERR_WRONG_KEY_USAGE,
|
|
GPG_ERR_WRONG_PUBKEY_ALGO,
|
|
GPG_ERR_OUT_OF_MEMORY
|
|
} gcry_err_code_t;
|
|
#define gpg_err_code_t gcry_err_code_t
|
|
#define gpg_error_t gcry_err_code_t
|
|
|
|
enum gcry_cipher_modes
|
|
{
|
|
GCRY_CIPHER_MODE_NONE = 0, /* Not yet specified. */
|
|
GCRY_CIPHER_MODE_ECB = 1, /* Electronic codebook. */
|
|
GCRY_CIPHER_MODE_CFB = 2, /* Cipher feedback. */
|
|
GCRY_CIPHER_MODE_CBC = 3, /* Cipher block chaining. */
|
|
GCRY_CIPHER_MODE_STREAM = 4, /* Used with stream ciphers. */
|
|
GCRY_CIPHER_MODE_OFB = 5, /* Outer feedback. */
|
|
GCRY_CIPHER_MODE_CTR = 6 /* Counter. */
|
|
};
|
|
|
|
/* Type for the cipher_setkey function. */
|
|
typedef gcry_err_code_t (*gcry_cipher_setkey_t) (void *c,
|
|
const unsigned char *key,
|
|
unsigned keylen);
|
|
|
|
/* Type for the cipher_encrypt function. */
|
|
typedef void (*gcry_cipher_encrypt_t) (void *c,
|
|
unsigned char *outbuf,
|
|
const unsigned char *inbuf);
|
|
|
|
/* Type for the cipher_decrypt function. */
|
|
typedef void (*gcry_cipher_decrypt_t) (void *c,
|
|
unsigned char *outbuf,
|
|
const unsigned char *inbuf);
|
|
|
|
/* Type for the cipher_stencrypt function. */
|
|
typedef void (*gcry_cipher_stencrypt_t) (void *c,
|
|
unsigned char *outbuf,
|
|
const unsigned char *inbuf,
|
|
unsigned int n);
|
|
|
|
/* Type for the cipher_stdecrypt function. */
|
|
typedef void (*gcry_cipher_stdecrypt_t) (void *c,
|
|
unsigned char *outbuf,
|
|
const unsigned char *inbuf,
|
|
unsigned int n);
|
|
|
|
typedef struct gcry_cipher_oid_spec
|
|
{
|
|
const char *oid;
|
|
int mode;
|
|
} gcry_cipher_oid_spec_t;
|
|
|
|
/* Module specification structure for ciphers. */
|
|
typedef struct gcry_cipher_spec
|
|
{
|
|
const char *name;
|
|
const char **aliases;
|
|
gcry_cipher_oid_spec_t *oids;
|
|
grub_size_t blocksize;
|
|
grub_size_t keylen;
|
|
grub_size_t contextsize;
|
|
gcry_cipher_setkey_t setkey;
|
|
gcry_cipher_encrypt_t encrypt;
|
|
gcry_cipher_decrypt_t decrypt;
|
|
gcry_cipher_stencrypt_t stencrypt;
|
|
gcry_cipher_stdecrypt_t stdecrypt;
|
|
struct gcry_cipher_spec *next;
|
|
} gcry_cipher_spec_t;
|
|
|
|
/* Type for the md_init function. */
|
|
typedef void (*gcry_md_init_t) (void *c);
|
|
|
|
/* Type for the md_write function. */
|
|
typedef void (*gcry_md_write_t) (void *c, const void *buf, grub_size_t nbytes);
|
|
|
|
/* Type for the md_final function. */
|
|
typedef void (*gcry_md_final_t) (void *c);
|
|
|
|
/* Type for the md_read function. */
|
|
typedef unsigned char *(*gcry_md_read_t) (void *c);
|
|
|
|
typedef struct gcry_md_oid_spec
|
|
{
|
|
const char *oidstring;
|
|
} gcry_md_oid_spec_t;
|
|
|
|
/* Module specification structure for message digests. */
|
|
typedef struct gcry_md_spec
|
|
{
|
|
const char *name;
|
|
unsigned char *asnoid;
|
|
int asnlen;
|
|
gcry_md_oid_spec_t *oids;
|
|
grub_size_t mdlen;
|
|
gcry_md_init_t init;
|
|
gcry_md_write_t write;
|
|
gcry_md_final_t final;
|
|
gcry_md_read_t read;
|
|
grub_size_t contextsize; /* allocate this amount of context */
|
|
/* Block size, needed for HMAC. */
|
|
grub_size_t blocksize;
|
|
struct gcry_md_spec *next;
|
|
} gcry_md_spec_t;
|
|
|
|
struct grub_crypto_cipher_handle
|
|
{
|
|
const struct gcry_cipher_spec *cipher;
|
|
char ctx[0];
|
|
};
|
|
|
|
typedef struct grub_crypto_cipher_handle *grub_crypto_cipher_handle_t;
|
|
|
|
struct grub_crypto_hmac_handle;
|
|
|
|
const gcry_cipher_spec_t *
|
|
grub_crypto_lookup_cipher_by_name (const char *name);
|
|
|
|
grub_crypto_cipher_handle_t
|
|
grub_crypto_cipher_open (const struct gcry_cipher_spec *cipher);
|
|
|
|
gcry_err_code_t
|
|
grub_crypto_cipher_set_key (grub_crypto_cipher_handle_t cipher,
|
|
const unsigned char *key,
|
|
unsigned keylen);
|
|
|
|
void
|
|
grub_crypto_cipher_close (grub_crypto_cipher_handle_t cipher);
|
|
|
|
void
|
|
grub_crypto_xor (void *out, const void *in1, const void *in2, grub_size_t size);
|
|
|
|
gcry_err_code_t
|
|
grub_crypto_ecb_decrypt (grub_crypto_cipher_handle_t cipher,
|
|
void *out, void *in, grub_size_t size);
|
|
|
|
gcry_err_code_t
|
|
grub_crypto_ecb_encrypt (grub_crypto_cipher_handle_t cipher,
|
|
void *out, void *in, grub_size_t size);
|
|
gcry_err_code_t
|
|
grub_crypto_cbc_encrypt (grub_crypto_cipher_handle_t cipher,
|
|
void *out, void *in, grub_size_t size,
|
|
void *iv_in);
|
|
gcry_err_code_t
|
|
grub_crypto_cbc_decrypt (grub_crypto_cipher_handle_t cipher,
|
|
void *out, void *in, grub_size_t size,
|
|
void *iv);
|
|
void
|
|
grub_cipher_register (gcry_cipher_spec_t *cipher);
|
|
void
|
|
grub_cipher_unregister (gcry_cipher_spec_t *cipher);
|
|
void
|
|
grub_md_register (gcry_md_spec_t *digest);
|
|
void
|
|
grub_md_unregister (gcry_md_spec_t *cipher);
|
|
void
|
|
grub_crypto_hash (const gcry_md_spec_t *hash, void *out, const void *in,
|
|
grub_size_t inlen);
|
|
const gcry_md_spec_t *
|
|
grub_crypto_lookup_md_by_name (const char *name);
|
|
|
|
grub_err_t
|
|
grub_crypto_gcry_error (gcry_err_code_t in);
|
|
|
|
void grub_burn_stack (grub_size_t size);
|
|
|
|
struct grub_crypto_hmac_handle *
|
|
grub_crypto_hmac_init (const struct gcry_md_spec *md,
|
|
const void *key, grub_size_t keylen);
|
|
void
|
|
grub_crypto_hmac_write (struct grub_crypto_hmac_handle *hnd, void *data,
|
|
grub_size_t datalen);
|
|
gcry_err_code_t
|
|
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);
|
|
|
|
extern gcry_md_spec_t _gcry_digest_spec_md5;
|
|
extern gcry_md_spec_t _gcry_digest_spec_sha1;
|
|
extern gcry_md_spec_t _gcry_digest_spec_sha256;
|
|
extern gcry_md_spec_t _gcry_digest_spec_sha512;
|
|
extern gcry_md_spec_t _gcry_digest_spec_crc32;
|
|
#define GRUB_MD_MD5 ((const gcry_md_spec_t *) &_gcry_digest_spec_md5)
|
|
#define GRUB_MD_SHA1 ((const gcry_md_spec_t *) &_gcry_digest_spec_sha1)
|
|
#define GRUB_MD_SHA256 ((const gcry_md_spec_t *) &_gcry_digest_spec_sha256)
|
|
#define GRUB_MD_SHA512 ((const gcry_md_spec_t *) &_gcry_digest_spec_sha512)
|
|
#define GRUB_MD_CRC32 ((const gcry_md_spec_t *) &_gcry_digest_spec_crc32)
|
|
|
|
/* Implement PKCS#5 PBKDF2 as per RFC 2898. The PRF to use is HMAC variant
|
|
of digest supplied by MD. Inputs are the password P of length PLEN,
|
|
the salt S of length SLEN, the iteration counter C (> 0), and the
|
|
desired derived output length DKLEN. Output buffer is DK which
|
|
must have room for at least DKLEN octets. The output buffer will
|
|
be filled with the derived data. */
|
|
gcry_err_code_t
|
|
grub_crypto_pbkdf2 (const struct gcry_md_spec *md,
|
|
const grub_uint8_t *P, grub_size_t Plen,
|
|
const grub_uint8_t *S, grub_size_t Slen,
|
|
unsigned int c,
|
|
grub_uint8_t *DK, grub_size_t dkLen);
|
|
|
|
int
|
|
grub_crypto_memcmp (const void *a, const void *b, grub_size_t n);
|
|
|
|
int
|
|
grub_password_get (char buf[], unsigned buf_size);
|
|
|
|
/* For indistinguishibility. */
|
|
#define GRUB_ACCESS_DENIED grub_error (GRUB_ERR_ACCESS_DENIED, "Access denied.")
|
|
|
|
extern void (*grub_crypto_autoload_hook) (const char *name);
|
|
|
|
#endif
|