openssh/openbsd-compat/openssl-compat.h
Damien Miller 42c5ec4b97 refactor libcrypto initialisation
Don't call OpenSSL_add_all_algorithms() unless OpenSSL actually
supports it.

Move all libcrypto initialisation to a single function, and call that
from seed_rng() that is called early in each tool's main().

Prompted by patch from Rosen Penev
2018-11-23 10:42:05 +11:00

234 lines
7.0 KiB
C

/*
* Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _OPENSSL_COMPAT_H
#define _OPENSSL_COMPAT_H
#include "includes.h"
#ifdef WITH_OPENSSL
#include <openssl/opensslv.h>
#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#ifdef OPENSSL_HAS_ECC
#include <openssl/ecdsa.h>
#endif
#include <openssl/dh.h>
int ssh_compatible_openssl(long, long);
void ssh_libcrypto_init(void);
#if (OPENSSL_VERSION_NUMBER < 0x1000100fL)
# error OpenSSL 1.0.1 or greater is required
#endif
#ifndef OPENSSL_VERSION
# define OPENSSL_VERSION SSLEAY_VERSION
#endif
#ifndef HAVE_OPENSSL_VERSION
# define OpenSSL_version(x) SSLeay_version(x)
#endif
#ifndef HAVE_OPENSSL_VERSION_NUM
# define OpenSSL_version_num SSLeay
#endif
#if OPENSSL_VERSION_NUMBER < 0x10000001L
# define LIBCRYPTO_EVP_INL_TYPE unsigned int
#else
# define LIBCRYPTO_EVP_INL_TYPE size_t
#endif
#ifndef OPENSSL_RSA_MAX_MODULUS_BITS
# define OPENSSL_RSA_MAX_MODULUS_BITS 16384
#endif
#ifndef OPENSSL_DSA_MAX_MODULUS_BITS
# define OPENSSL_DSA_MAX_MODULUS_BITS 10000
#endif
#ifndef OPENSSL_HAVE_EVPCTR
# define EVP_aes_128_ctr evp_aes_128_ctr
# define EVP_aes_192_ctr evp_aes_128_ctr
# define EVP_aes_256_ctr evp_aes_128_ctr
const EVP_CIPHER *evp_aes_128_ctr(void);
void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, size_t);
#endif
/* Avoid some #ifdef. Code that uses these is unreachable without GCM */
#if !defined(OPENSSL_HAVE_EVPGCM) && !defined(EVP_CTRL_GCM_SET_IV_FIXED)
# define EVP_CTRL_GCM_SET_IV_FIXED -1
# define EVP_CTRL_GCM_IV_GEN -1
# define EVP_CTRL_GCM_SET_TAG -1
# define EVP_CTRL_GCM_GET_TAG -1
#endif
/* Replace missing EVP_CIPHER_CTX_ctrl() with something that returns failure */
#ifndef HAVE_EVP_CIPHER_CTX_CTRL
# ifdef OPENSSL_HAVE_EVPGCM
# error AES-GCM enabled without EVP_CIPHER_CTX_ctrl /* shouldn't happen */
# else
# define EVP_CIPHER_CTX_ctrl(a,b,c,d) (0)
# endif
#endif
#if defined(HAVE_EVP_RIPEMD160)
# if defined(OPENSSL_NO_RIPEMD) || defined(OPENSSL_NO_RMD160)
# undef HAVE_EVP_RIPEMD160
# endif
#endif
/* LibreSSL/OpenSSL 1.1x API compat */
#ifndef HAVE_DSA_GET0_PQG
void DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q,
const BIGNUM **g);
#endif /* HAVE_DSA_GET0_PQG */
#ifndef HAVE_DSA_SET0_PQG
int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g);
#endif /* HAVE_DSA_SET0_PQG */
#ifndef HAVE_DSA_GET0_KEY
void DSA_get0_key(const DSA *d, const BIGNUM **pub_key,
const BIGNUM **priv_key);
#endif /* HAVE_DSA_GET0_KEY */
#ifndef HAVE_DSA_SET0_KEY
int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key);
#endif /* HAVE_DSA_SET0_KEY */
#ifndef HAVE_EVP_CIPHER_CTX_GET_IV
int EVP_CIPHER_CTX_get_iv(const EVP_CIPHER_CTX *ctx,
unsigned char *iv, size_t len);
#endif /* HAVE_EVP_CIPHER_CTX_GET_IV */
#ifndef HAVE_EVP_CIPHER_CTX_SET_IV
int EVP_CIPHER_CTX_set_iv(EVP_CIPHER_CTX *ctx,
const unsigned char *iv, size_t len);
#endif /* HAVE_EVP_CIPHER_CTX_SET_IV */
#ifndef HAVE_RSA_GET0_KEY
void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e,
const BIGNUM **d);
#endif /* HAVE_RSA_GET0_KEY */
#ifndef HAVE_RSA_SET0_KEY
int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
#endif /* HAVE_RSA_SET0_KEY */
#ifndef HAVE_RSA_GET0_CRT_PARAMS
void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
const BIGNUM **iqmp);
#endif /* HAVE_RSA_GET0_CRT_PARAMS */
#ifndef HAVE_RSA_SET0_CRT_PARAMS
int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp);
#endif /* HAVE_RSA_SET0_CRT_PARAMS */
#ifndef HAVE_RSA_GET0_FACTORS
void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q);
#endif /* HAVE_RSA_GET0_FACTORS */
#ifndef HAVE_RSA_SET0_FACTORS
int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
#endif /* HAVE_RSA_SET0_FACTORS */
#ifndef DSA_SIG_GET0
void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
#endif /* DSA_SIG_GET0 */
#ifndef DSA_SIG_SET0
int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);
#endif /* DSA_SIG_SET0 */
#ifdef OPENSSL_HAS_ECC
#ifndef HAVE_ECDSA_SIG_GET0
void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
#endif /* HAVE_ECDSA_SIG_GET0 */
#ifndef HAVE_ECDSA_SIG_SET0
int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);
#endif /* HAVE_ECDSA_SIG_SET0 */
#endif /* OPENSSL_HAS_ECC */
#ifndef HAVE_DH_GET0_PQG
void DH_get0_pqg(const DH *dh, const BIGNUM **p, const BIGNUM **q,
const BIGNUM **g);
#endif /* HAVE_DH_GET0_PQG */
#ifndef HAVE_DH_SET0_PQG
int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g);
#endif /* HAVE_DH_SET0_PQG */
#ifndef HAVE_DH_GET0_KEY
void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key);
#endif /* HAVE_DH_GET0_KEY */
#ifndef HAVE_DH_SET0_KEY
int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key);
#endif /* HAVE_DH_SET0_KEY */
#ifndef HAVE_DH_SET_LENGTH
int DH_set_length(DH *dh, long length);
#endif /* HAVE_DH_SET_LENGTH */
#ifndef HAVE_RSA_METH_FREE
void RSA_meth_free(RSA_METHOD *meth);
#endif /* HAVE_RSA_METH_FREE */
#ifndef HAVE_RSA_METH_DUP
RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);
#endif /* HAVE_RSA_METH_DUP */
#ifndef HAVE_RSA_METH_SET1_NAME
int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);
#endif /* HAVE_RSA_METH_SET1_NAME */
#ifndef HAVE_RSA_METH_GET_FINISH
int (*RSA_meth_get_finish(const RSA_METHOD *meth))(RSA *rsa);
#endif /* HAVE_RSA_METH_GET_FINISH */
#ifndef HAVE_RSA_METH_SET_PRIV_ENC
int RSA_meth_set_priv_enc(RSA_METHOD *meth, int (*priv_enc)(int flen,
const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
#endif /* HAVE_RSA_METH_SET_PRIV_ENC */
#ifndef HAVE_RSA_METH_SET_PRIV_DEC
int RSA_meth_set_priv_dec(RSA_METHOD *meth, int (*priv_dec)(int flen,
const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
#endif /* HAVE_RSA_METH_SET_PRIV_DEC */
#ifndef HAVE_RSA_METH_SET_FINISH
int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish)(RSA *rsa));
#endif /* HAVE_RSA_METH_SET_FINISH */
#ifndef HAVE_EVP_PKEY_GET0_RSA
RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey);
#endif /* HAVE_EVP_PKEY_GET0_RSA */
#ifndef HAVE_EVP_MD_CTX_new
EVP_MD_CTX *EVP_MD_CTX_new(void);
#endif /* HAVE_EVP_MD_CTX_new */
#ifndef HAVE_EVP_MD_CTX_free
void EVP_MD_CTX_free(EVP_MD_CTX *ctx);
#endif /* HAVE_EVP_MD_CTX_free */
#endif /* WITH_OPENSSL */
#endif /* _OPENSSL_COMPAT_H */