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      1 /*	$NetBSD: libssl_compat.h,v 1.2 2020/05/25 20:47:19 christos Exp $	*/
      2 
      3 /*
      4  * libssl_compat.h -- OpenSSL v1.1 compatibility shims
      5  *
      6  * ---------------------------------------------------------------------
      7  *
      8  * Written by Juergen Perlinger <perlinger (at) ntp.org> for the NTP project
      9  *
     10  * Based on an idea by Kurt Roeckx <kurt (at) roeckx.be>
     11  *
     12  * ---------------------------------------------------------------------
     13  * This is a clean room implementation of shim functions that have
     14  * counterparts in the OpenSSL v1.1 API but not in earlier versions.
     15  *
     16  * If the OpenSSL version used for compilation needs the shims (that is,
     17  * does not provide the new functions) the names of these functions are
     18  * redirected to our shims.
     19  * ---------------------------------------------------------------------
     20  */
     21 
     22 #ifndef NTP_LIBSSL_COMPAT_H
     23 #define NTP_LIBSSL_COMPAT_H
     24 
     25 #include "openssl/evp.h"
     26 #include "openssl/dsa.h"
     27 #include "openssl/rsa.h"
     28 
     29 #ifndef OPENSSL_VERSION_NUMBER
     30 #define OPENSSL_VERSION_NUMBER SSLEAY_VERSION_NUMBER
     31 #endif
     32 
     33 #ifndef OPENSSL_VERSION_TEXT
     34 #define OPENSSL_VERSION_TEXT SSLEAY_VERSION_TEXT
     35 #endif
     36 
     37 #ifndef OPENSSL_VERSION
     38 #define OPENSSL_VERSION SSLEAY_VERSION
     39 #endif
     40 
     41 /* ----------------------------------------------------------------- */
     42 #if OPENSSL_VERSION_NUMBER < 0x10100000L
     43 /* ----------------------------------------------------------------- */
     44 
     45 # include <openssl/objects.h>
     46 # include <openssl/x509.h>
     47 
     48 /* shim the new-style API on an old-style OpenSSL */
     49 
     50 extern BN_GENCB*	sslshimBN_GENCB_new(void);
     51 extern void		sslshimBN_GENCB_free(BN_GENCB*);
     52 
     53 extern EVP_MD_CTX*	sslshim_EVP_MD_CTX_new(void);
     54 extern void		sslshim_EVP_MD_CTX_free(EVP_MD_CTX *ctx);
     55 
     56 extern int	sslshim_EVP_PKEY_id(const EVP_PKEY * pkey);
     57 extern int	sslshim_EVP_PKEY_base_id(const EVP_PKEY * pkey);
     58 extern RSA*	sslshim_EVP_PKEY_get0_RSA(EVP_PKEY * pkey);
     59 extern DSA*	sslshim_EVP_PKEY_get0_DSA(EVP_PKEY * pkey);
     60 
     61 extern void	sslshim_RSA_get0_key(const RSA *prsa, const BIGNUM **pn,
     62 				     const BIGNUM **pe, const BIGNUM **pd);
     63 extern int	sslshim_RSA_set0_key(RSA *prsa, BIGNUM *n,
     64 				     BIGNUM *e, BIGNUM *d);
     65 extern void	sslshim_RSA_get0_factors(const RSA *prsa, const BIGNUM **pp,
     66 					 const BIGNUM **pq);
     67 extern int 	sslshim_RSA_set0_factors(RSA *prsar, BIGNUM *p, BIGNUM *q);
     68 extern int	sslshim_RSA_set0_crt_params(RSA *prsa, BIGNUM *dmp1,
     69 					BIGNUM *dmq1, BIGNUM *iqmp);
     70 
     71 extern void	sslshim_DSA_SIG_get0(const DSA_SIG *psig, const BIGNUM **pr,
     72 				     const BIGNUM **ps);
     73 extern int	sslshim_DSA_SIG_set0(DSA_SIG *psig, BIGNUM *r, BIGNUM *s);
     74 extern void	sslshim_DSA_get0_pqg(const DSA *pdsa, const BIGNUM **pp,
     75 				 const BIGNUM **pq, const BIGNUM **pg);
     76 extern int	sslshim_DSA_set0_pqg(DSA *pdsa, BIGNUM *p, BIGNUM *q, BIGNUM *g);
     77 extern void	sslshim_DSA_get0_key(const DSA *pdsa, const BIGNUM **ppub_key,
     78 				 const BIGNUM **ppriv_key);
     79 extern int	sslshim_DSA_set0_key(DSA *pdsa, BIGNUM *pub_key,
     80 				     BIGNUM *priv_key);
     81 
     82 extern int	sslshim_X509_get_signature_nid(const X509 *x);
     83 
     84 #define	BN_GENCB_new		sslshimBN_GENCB_new
     85 #define	BN_GENCB_free		sslshimBN_GENCB_free
     86 
     87 #define EVP_MD_CTX_new		sslshim_EVP_MD_CTX_new
     88 #define EVP_MD_CTX_free		sslshim_EVP_MD_CTX_free
     89 
     90 #define EVP_PKEY_id		sslshim_EVP_PKEY_id
     91 #define EVP_PKEY_base_id	sslshim_EVP_PKEY_base_id
     92 #define EVP_PKEY_get0_RSA	sslshim_EVP_PKEY_get0_RSA
     93 #define EVP_PKEY_get0_DSA	sslshim_EVP_PKEY_get0_DSA
     94 
     95 #define RSA_get0_key		sslshim_RSA_get0_key
     96 #define RSA_set0_key		sslshim_RSA_set0_key
     97 #define RSA_get0_factors	sslshim_RSA_get0_factors
     98 #define RSA_set0_factors	sslshim_RSA_set0_factors
     99 #define RSA_set0_crt_params	sslshim_RSA_set0_crt_params
    100 
    101 #define DSA_SIG_get0		sslshim_DSA_SIG_get0
    102 #define DSA_SIG_set0		sslshim_DSA_SIG_set0
    103 #define DSA_get0_pqg		sslshim_DSA_get0_pqg
    104 #define DSA_set0_pqg		sslshim_DSA_set0_pqg
    105 #define DSA_get0_key		sslshim_DSA_get0_key
    106 #define DSA_set0_key		sslshim_DSA_set0_key
    107 
    108 #define X509_get_signature_nid	sslshim_X509_get_signature_nid
    109 
    110 #define OpenSSL_version_num	SSLeay
    111 #define OpenSSL_version		SSLeay_version
    112 #define X509_get0_notBefore	X509_get_notBefore
    113 #define X509_getm_notBefore	X509_get_notBefore
    114 #define X509_get0_notAfter	X509_get_notAfter
    115 #define X509_getm_notAfter	X509_get_notAfter
    116 
    117 /* ----------------------------------------------------------------- */
    118 #endif /* OPENSSL_VERSION_NUMBER < v1.1.0 */
    119 /* ----------------------------------------------------------------- */
    120 
    121 #endif /* NTP_LIBSSL_COMPAT_H */
    122