ssh2-python/libssh2/src/mbedtls.h at master · roydahan/ssh2-python · GitHub

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#ifndef LIBSSH2_MBEDTLS_H

#define LIBSSH2_MBEDTLS_H

/* Copyright (C) Art <https://github.com/wildart>

* Redistribution and use in source and binary forms,

* with or without modification, are permitted provided

* that the following conditions are met:

* Redistributions of source code must retain the above

* copyright notice, this list of conditions and the

* following disclaimer.

* Redistributions in binary form must reproduce the above

* copyright notice, this list of conditions and the following

* disclaimer in the documentation and/or other materials

* provided with the distribution.

* Neither the name of the copyright holder nor the names

* of any other contributors may be used to endorse or

* promote products derived from this software without

* specific prior written permission.

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND

* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,

* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,

* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE

* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY

* OF SUCH DAMAGE.

* SPDX-License-Identifier: BSD-3-Clause

#define LIBSSH2_CRYPTO_ENGINE libssh2_mbedtls

#ifdef __GNUC__

#pragma GCC diagnostic push

/* mbedTLS (as of v3.5.1) has a `[-Werror=arith-conversion]`

warning in its public headers. */

#if !defined(__clang__) && __GNUC__ >= 10

#pragma GCC diagnostic ignored "-Warith-conversion"

#endif

#if defined(__clang__)

#pragma GCC diagnostic ignored "-Wsign-conversion"

#endif

/* mbedTLS (as of v3.5.1) has a duplicate function declaration

in its public headers. Disable the warning that detects it. */

#pragma GCC diagnostic ignored "-Wredundant-decls"

#endif

#include <mbedtls/version.h>

#include <mbedtls/platform.h>

#include <mbedtls/md.h>

#include <mbedtls/rsa.h>

#include <mbedtls/bignum.h>

#include <mbedtls/cipher.h>

#ifdef MBEDTLS_ECDH_C

# include <mbedtls/ecdh.h>

#endif

#ifdef MBEDTLS_ECDSA_C

# include <mbedtls/ecdsa.h>

#endif

#include <mbedtls/entropy.h>

#include <mbedtls/ctr_drbg.h>

#include <mbedtls/pk.h>

#include <mbedtls/error.h>

#ifdef __GNUC__

#pragma GCC diagnostic pop

#endif

/* Define which features are supported. */

#define LIBSSH2_MD5 1

#define LIBSSH2_HMAC_RIPEMD 1

#define LIBSSH2_HMAC_SHA256 1

#define LIBSSH2_HMAC_SHA512 1

#define LIBSSH2_AES_CBC 1

#define LIBSSH2_AES_CTR 1

#define LIBSSH2_AES_GCM 0

#ifdef MBEDTLS_CIPHER_BLOWFISH_CBC

# define LIBSSH2_BLOWFISH 1

#else

# define LIBSSH2_BLOWFISH 0

#endif

#ifdef MBEDTLS_CIPHER_ARC4_128

# define LIBSSH2_RC4 1

#else

# define LIBSSH2_RC4 0

#endif

#define LIBSSH2_CAST 0

#define LIBSSH2_3DES 1

#define LIBSSH2_RSA 1

#define LIBSSH2_RSA_SHA1 1

#define LIBSSH2_RSA_SHA2 1

#define LIBSSH2_DSA 0

#ifdef MBEDTLS_ECDSA_C

# define LIBSSH2_ECDSA 1

#else

# define LIBSSH2_ECDSA 0

#endif

#define LIBSSH2_ED25519 0

#include "crypto_config.h"

#if LIBSSH2_MD5 || LIBSSH2_MD5_PEM

#define MD5_DIGEST_LENGTH 16

#endif

#define SHA_DIGEST_LENGTH 20

#define SHA256_DIGEST_LENGTH 32

#define SHA384_DIGEST_LENGTH 48

#define SHA512_DIGEST_LENGTH 64

#define EC_MAX_POINT_LEN ((528 * 2 / 8) + 1)

/*******************************************************************/

* mbedTLS backend: Generic functions

#define libssh2_crypto_init() \

_libssh2_mbedtls_init()

#define libssh2_crypto_exit() \

_libssh2_mbedtls_free()

#define _libssh2_random(buf, len) \

_libssh2_mbedtls_random(buf, len)

#define libssh2_prepare_iovec(vec, len) /* Empty. */

/*******************************************************************/

* mbedTLS backend: HMAC functions

#define libssh2_hmac_ctx mbedtls_md_context_t

/*******************************************************************/

* mbedTLS backend: SHA1 functions

#define libssh2_sha1_ctx mbedtls_md_context_t

#define libssh2_sha1_init(pctx) \

_libssh2_mbedtls_hash_init(pctx, MBEDTLS_MD_SHA1, NULL, 0)

#define libssh2_sha1_update(ctx, data, datalen) \

(mbedtls_md_update(&ctx, (const unsigned char *) data, datalen) == 0)

#define libssh2_sha1_final(ctx, hash) \

_libssh2_mbedtls_hash_final(&ctx, hash)

#define libssh2_sha1(data, datalen, hash) \

_libssh2_mbedtls_hash(data, datalen, MBEDTLS_MD_SHA1, hash)

/*******************************************************************/

* mbedTLS backend: SHA256 functions

#define libssh2_sha256_ctx mbedtls_md_context_t

#define libssh2_sha256_init(pctx) \

_libssh2_mbedtls_hash_init(pctx, MBEDTLS_MD_SHA256, NULL, 0)

#define libssh2_sha256_update(ctx, data, datalen) \

(mbedtls_md_update(&ctx, (const unsigned char *) data, datalen) == 0)

#define libssh2_sha256_final(ctx, hash) \

_libssh2_mbedtls_hash_final(&ctx, hash)

#define libssh2_sha256(data, datalen, hash) \

_libssh2_mbedtls_hash(data, datalen, MBEDTLS_MD_SHA256, hash)

/*******************************************************************/

* mbedTLS backend: SHA384 functions

#define libssh2_sha384_ctx mbedtls_md_context_t

#define libssh2_sha384_init(pctx) \

_libssh2_mbedtls_hash_init(pctx, MBEDTLS_MD_SHA384, NULL, 0)

#define libssh2_sha384_update(ctx, data, datalen) \

(mbedtls_md_update(&ctx, (const unsigned char *) data, datalen) == 0)

#define libssh2_sha384_final(ctx, hash) \

_libssh2_mbedtls_hash_final(&ctx, hash)

#define libssh2_sha384(data, datalen, hash) \

_libssh2_mbedtls_hash(data, datalen, MBEDTLS_MD_SHA384, hash)

/*******************************************************************/

* mbedTLS backend: SHA512 functions

#define libssh2_sha512_ctx mbedtls_md_context_t

#define libssh2_sha512_init(pctx) \

_libssh2_mbedtls_hash_init(pctx, MBEDTLS_MD_SHA512, NULL, 0)

#define libssh2_sha512_update(ctx, data, datalen) \

(mbedtls_md_update(&ctx, (const unsigned char *) data, datalen) == 0)

#define libssh2_sha512_final(ctx, hash) \

_libssh2_mbedtls_hash_final(&ctx, hash)

#define libssh2_sha512(data, datalen, hash) \

_libssh2_mbedtls_hash(data, datalen, MBEDTLS_MD_SHA512, hash)

/*******************************************************************/

* mbedTLS backend: MD5 functions

#if LIBSSH2_MD5 || LIBSSH2_MD5_PEM

#define libssh2_md5_ctx mbedtls_md_context_t

#define libssh2_md5_init(pctx) \

_libssh2_mbedtls_hash_init(pctx, MBEDTLS_MD_MD5, NULL, 0)

#define libssh2_md5_update(ctx, data, datalen) \

(mbedtls_md_update(&ctx, (const unsigned char *) data, datalen) == 0)

#define libssh2_md5_final(ctx, hash) \

_libssh2_mbedtls_hash_final(&ctx, hash)

#endif

/*******************************************************************/

* mbedTLS backend: RSA functions

#define libssh2_rsa_ctx mbedtls_rsa_context

#define _libssh2_rsa_new(rsactx, e, e_len, n, n_len, \

d, d_len, p, p_len, q, q_len, \

e1, e1_len, e2, e2_len, c, c_len) \

_libssh2_mbedtls_rsa_new(rsactx, e, e_len, n, n_len, \

d, d_len, p, p_len, q, q_len, \

e1, e1_len, e2, e2_len, c, c_len)

#define _libssh2_rsa_new_private(rsactx, s, filename, passphrase) \

_libssh2_mbedtls_rsa_new_private(rsactx, s, filename, passphrase)

#define _libssh2_rsa_new_private_frommemory(rsactx, s, filedata, \

filedata_len, passphrase) \

_libssh2_mbedtls_rsa_new_private_frommemory(rsactx, s, filedata, \

filedata_len, passphrase)

#define _libssh2_rsa_sha1_sign(s, rsactx, hash, hash_len, sig, sig_len) \

_libssh2_mbedtls_rsa_sha1_sign(s, rsactx, hash, hash_len, sig, sig_len)

#define _libssh2_rsa_sha2_sign(s, rsactx, hash, hash_len, sig, sig_len) \

_libssh2_mbedtls_rsa_sha2_sign(s, rsactx, hash, hash_len, sig, sig_len)

#define _libssh2_rsa_sha1_verify(rsactx, sig, sig_len, m, m_len) \

_libssh2_mbedtls_rsa_sha1_verify(rsactx, sig, sig_len, m, m_len)

#define _libssh2_rsa_sha2_verify(rsactx, hash_len, sig, sig_len, m, m_len) \

_libssh2_mbedtls_rsa_sha2_verify(rsactx, hash_len, sig, sig_len, m, m_len)

#define _libssh2_rsa_free(rsactx) \

_libssh2_mbedtls_rsa_free(rsactx)

/*******************************************************************/

* mbedTLS backend: ECDSA structures

#if LIBSSH2_ECDSA

typedef enum {

#ifdef MBEDTLS_ECP_DP_SECP256R1_ENABLED

LIBSSH2_EC_CURVE_NISTP256 = MBEDTLS_ECP_DP_SECP256R1,

#else

LIBSSH2_EC_CURVE_NISTP256 = MBEDTLS_ECP_DP_NONE,

#endif

#ifdef MBEDTLS_ECP_DP_SECP384R1_ENABLED

LIBSSH2_EC_CURVE_NISTP384 = MBEDTLS_ECP_DP_SECP384R1,

#else

LIBSSH2_EC_CURVE_NISTP384 = MBEDTLS_ECP_DP_NONE,

#endif

#ifdef MBEDTLS_ECP_DP_SECP521R1_ENABLED

LIBSSH2_EC_CURVE_NISTP521 = MBEDTLS_ECP_DP_SECP521R1

#else

LIBSSH2_EC_CURVE_NISTP521 = MBEDTLS_ECP_DP_NONE,

#endif

} libssh2_curve_type;

# define _libssh2_ec_key mbedtls_ecp_keypair

#else

# define _libssh2_ec_key void

#endif /* LIBSSH2_ECDSA */

/*******************************************************************/

* mbedTLS backend: ECDSA functions

#if LIBSSH2_ECDSA

#define libssh2_ecdsa_ctx mbedtls_ecdsa_context

#define _libssh2_ecdsa_create_key(session, privkey, pubkey_octal, \

pubkey_octal_len, curve) \

_libssh2_mbedtls_ecdsa_create_key(session, privkey, pubkey_octal, \

pubkey_octal_len, curve)

#define _libssh2_ecdsa_curve_name_with_octal_new(ctx, k, k_len, curve) \

_libssh2_mbedtls_ecdsa_curve_name_with_octal_new(ctx, k, k_len, curve)

#define _libssh2_ecdh_gen_k(k, privkey, server_pubkey, server_pubkey_len) \

_libssh2_mbedtls_ecdh_gen_k(k, privkey, server_pubkey, server_pubkey_len)

#define _libssh2_ecdsa_verify(ctx, r, r_len, s, s_len, m, m_len) \

_libssh2_mbedtls_ecdsa_verify(ctx, r, r_len, s, s_len, m, m_len)

#define _libssh2_ecdsa_new_private(ctx, session, filename, passphrase) \

_libssh2_mbedtls_ecdsa_new_private(ctx, session, filename, passphrase)

#define _libssh2_ecdsa_new_private_frommemory(ctx, session, filedata, \

filedata_len, passphrase) \

_libssh2_mbedtls_ecdsa_new_private_frommemory(ctx, session, filedata, \

filedata_len, passphrase)

#define _libssh2_ecdsa_sign(session, ctx, hash, hash_len, sign, sign_len) \

_libssh2_mbedtls_ecdsa_sign(session, ctx, hash, hash_len, sign, sign_len)

#define _libssh2_ecdsa_get_curve_type(ctx) \

_libssh2_mbedtls_ecdsa_get_curve_type(ctx)

#define _libssh2_ecdsa_free(ctx) \

_libssh2_mbedtls_ecdsa_free(ctx)

#endif /* LIBSSH2_ECDSA */

/*******************************************************************/

* mbedTLS backend: Key functions

#define _libssh2_pub_priv_keyfile(s, m, m_len, p, p_len, pk, pw) \

_libssh2_mbedtls_pub_priv_keyfile(s, m, m_len, p, p_len, pk, pw)

#define _libssh2_pub_priv_keyfilememory(s, m, m_len, p, p_len, \

pk, pk_len, pw) \

_libssh2_mbedtls_pub_priv_keyfilememory(s, m, m_len, p, p_len, \

pk, pk_len, pw)

#define _libssh2_sk_pub_keyfilememory(s, m, m_len, p, p_len, alg, app, \

f, kh, kh_len, pk, pk_len, pw) \

_libssh2_mbedtls_sk_pub_keyfilememory(s, m, m_len, p, p_len, alg, app, \

f, kh, kh_len, pk, pk_len, pw)

/*******************************************************************/

* mbedTLS backend: Cipher Context structure

#define _libssh2_cipher_ctx mbedtls_cipher_context_t

#define _libssh2_cipher_type(algo) mbedtls_cipher_type_t algo

#define _libssh2_cipher_aes256ctr MBEDTLS_CIPHER_AES_256_CTR

#define _libssh2_cipher_aes192ctr MBEDTLS_CIPHER_AES_192_CTR

#define _libssh2_cipher_aes128ctr MBEDTLS_CIPHER_AES_128_CTR

#define _libssh2_cipher_aes256 MBEDTLS_CIPHER_AES_256_CBC

#define _libssh2_cipher_aes192 MBEDTLS_CIPHER_AES_192_CBC

#define _libssh2_cipher_aes128 MBEDTLS_CIPHER_AES_128_CBC

#ifdef MBEDTLS_CIPHER_BLOWFISH_CBC

#define _libssh2_cipher_blowfish MBEDTLS_CIPHER_BLOWFISH_CBC

#endif

#ifdef MBEDTLS_CIPHER_ARC4_128

#define _libssh2_cipher_arcfour MBEDTLS_CIPHER_ARC4_128

#endif

#define _libssh2_cipher_3des MBEDTLS_CIPHER_DES_EDE3_CBC

#define _libssh2_cipher_chacha20 MBEDTLS_CIPHER_CHACHA20_POLY1305

/*******************************************************************/

* mbedTLS backend: Cipher functions

#define _libssh2_cipher_init(ctx, type, iv, secret, encrypt) \

_libssh2_mbedtls_cipher_init(ctx, type, iv, secret, encrypt)

#define _libssh2_cipher_crypt(ctx, type, encrypt, block, blocklen, fl) \

_libssh2_mbedtls_cipher_crypt(ctx, type, encrypt, block, blocklen, fl)

#define _libssh2_cipher_dtor(ctx) \

_libssh2_mbedtls_cipher_dtor(ctx)

/*******************************************************************/

* mbedTLS backend: BigNumber Support

#define _libssh2_bn_ctx int /* not used */

#define _libssh2_bn_ctx_new() 0 /* not used */

#define _libssh2_bn_ctx_free(bnctx) ((void)0) /* not used */

#define _libssh2_bn mbedtls_mpi

#define _libssh2_bn_init() \

_libssh2_mbedtls_bignum_init()

#define _libssh2_bn_init_from_bin() \

_libssh2_mbedtls_bignum_init()

#define _libssh2_bn_set_word(bn, word) \

mbedtls_mpi_lset(bn, word)

#define _libssh2_bn_from_bin(bn, len, bin) \

mbedtls_mpi_read_binary(bn, bin, len)

#define _libssh2_bn_to_bin(bn, bin) \

mbedtls_mpi_write_binary(bn, bin, mbedtls_mpi_size(bn))

#define _libssh2_bn_bytes(bn) \

mbedtls_mpi_size(bn)

#define _libssh2_bn_bits(bn) \

mbedtls_mpi_bitlen(bn)

#define _libssh2_bn_free(bn) \

_libssh2_mbedtls_bignum_free(bn)

/*******************************************************************/

* mbedTLS backend: Diffie-Hellman support.

/* Default generate and safe prime sizes for

diffie-hellman-group-exchange-sha1 */

#define LIBSSH2_DH_GEX_MINGROUP 2048

#define LIBSSH2_DH_GEX_OPTGROUP 4096

#define LIBSSH2_DH_GEX_MAXGROUP 8192

#define LIBSSH2_DH_MAX_MODULUS_BITS 16384

#define _libssh2_dh_ctx mbedtls_mpi *

#define libssh2_dh_init(dhctx) _libssh2_dh_init(dhctx)

#define libssh2_dh_key_pair(dhctx, public, g, p, group_order, bnctx) \

_libssh2_dh_key_pair(dhctx, public, g, p, group_order)

#define libssh2_dh_secret(dhctx, secret, f, p, bnctx) \

_libssh2_dh_secret(dhctx, secret, f, p)

#define libssh2_dh_dtor(dhctx) _libssh2_dh_dtor(dhctx)

/*******************************************************************/

* mbedTLS backend: forward declarations

void

_libssh2_mbedtls_init(void);

void

_libssh2_mbedtls_free(void);

int

_libssh2_mbedtls_random(unsigned char *buf, size_t len);

void

_libssh2_mbedtls_cipher_dtor(_libssh2_cipher_ctx *ctx);

int

_libssh2_mbedtls_hash_init(mbedtls_md_context_t *ctx,

mbedtls_md_type_t mdtype,

const unsigned char *key, size_t keylen);

int

_libssh2_mbedtls_hash_final(mbedtls_md_context_t *ctx, unsigned char *hash);

int

_libssh2_mbedtls_hash(const unsigned char *data, size_t datalen,

mbedtls_md_type_t mdtype, unsigned char *hash);

_libssh2_bn *

_libssh2_mbedtls_bignum_init(void);

void

_libssh2_mbedtls_bignum_free(_libssh2_bn *bn);

void

_libssh2_mbedtls_rsa_free(libssh2_rsa_ctx *rsa);

#if LIBSSH2_ECDSA

libssh2_curve_type

_libssh2_mbedtls_ecdsa_key_get_curve_type(libssh2_ecdsa_ctx *ctx);

int

_libssh2_mbedtls_ecdsa_curve_type_from_name(const char *name,

libssh2_curve_type *type);

void

_libssh2_mbedtls_ecdsa_free(libssh2_ecdsa_ctx *ctx);

#endif /* LIBSSH2_ECDSA */

extern void

_libssh2_init_aes_ctr(void);

extern void

_libssh2_dh_init(_libssh2_dh_ctx *dhctx);

extern int

_libssh2_dh_key_pair(_libssh2_dh_ctx *dhctx, _libssh2_bn *public,

_libssh2_bn *g, _libssh2_bn *p, int group_order);

extern int

_libssh2_dh_secret(_libssh2_dh_ctx *dhctx, _libssh2_bn *secret,

_libssh2_bn *f, _libssh2_bn *p);

extern void

_libssh2_dh_dtor(_libssh2_dh_ctx *dhctx);

#endif /* LIBSSH2_MBEDTLS_H */

ssh2-python/libssh2/src/mbedtls.h at master · roydahan/ssh2-python · GitHub

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