xref: /freebsd/contrib/ntp/include/libssl_compat.h (revision a466cc55373fc3cf86837f09da729535b57e69a1)
1 /*
2  * libssl_compat.h -- OpenSSL v1.1 compatibility shims
3  *
4  * ---------------------------------------------------------------------
5  *
6  * Written by Juergen Perlinger <perlinger@ntp.org> for the NTP project
7  *
8  * Based on an idea by Kurt Roeckx <kurt@roeckx.be>
9  *
10  * ---------------------------------------------------------------------
11  * This is a clean room implementation of shim functions that have
12  * counterparts in the OpenSSL v1.1 API but not in earlier versions.
13  *
14  * If the OpenSSL version used for compilation needs the shims (that is,
15  * does not provide the new functions) the names of these functions are
16  * redirected to our shims.
17  * ---------------------------------------------------------------------
18  */
19 
20 #ifndef NTP_LIBSSL_COMPAT_H
21 #define NTP_LIBSSL_COMPAT_H
22 
23 #include "openssl/evp.h"
24 #include "openssl/dsa.h"
25 #include "openssl/rsa.h"
26 
27 #ifndef OPENSSL_VERSION_NUMBER
28 #define OPENSSL_VERSION_NUMBER SSLEAY_VERSION_NUMBER
29 #endif
30 
31 #ifndef OPENSSL_VERSION_TEXT
32 #define OPENSSL_VERSION_TEXT SSLEAY_VERSION_TEXT
33 #endif
34 
35 #ifndef OPENSSL_VERSION
36 #define OPENSSL_VERSION SSLEAY_VERSION
37 #endif
38 
39 /* ----------------------------------------------------------------- */
40 #if OPENSSL_VERSION_NUMBER < 0x10100000L
41 /* ----------------------------------------------------------------- */
42 
43 # include <openssl/objects.h>
44 # include <openssl/x509.h>
45 
46 /* shim the new-style API on an old-style OpenSSL */
47 
48 extern BN_GENCB*	sslshimBN_GENCB_new(void);
49 extern void		sslshimBN_GENCB_free(BN_GENCB*);
50 
51 extern EVP_MD_CTX*	sslshim_EVP_MD_CTX_new(void);
52 extern void		sslshim_EVP_MD_CTX_free(EVP_MD_CTX *ctx);
53 
54 extern int	sslshim_EVP_PKEY_id(const EVP_PKEY * pkey);
55 extern int	sslshim_EVP_PKEY_base_id(const EVP_PKEY * pkey);
56 extern RSA*	sslshim_EVP_PKEY_get0_RSA(EVP_PKEY * pkey);
57 extern DSA*	sslshim_EVP_PKEY_get0_DSA(EVP_PKEY * pkey);
58 
59 extern void	sslshim_RSA_get0_key(const RSA *prsa, const BIGNUM **pn,
60 				     const BIGNUM **pe, const BIGNUM **pd);
61 extern int	sslshim_RSA_set0_key(RSA *prsa, BIGNUM *n,
62 				     BIGNUM *e, BIGNUM *d);
63 extern void	sslshim_RSA_get0_factors(const RSA *prsa, const BIGNUM **pp,
64 					 const BIGNUM **pq);
65 extern int 	sslshim_RSA_set0_factors(RSA *prsar, BIGNUM *p, BIGNUM *q);
66 extern int	sslshim_RSA_set0_crt_params(RSA *prsa, BIGNUM *dmp1,
67 					BIGNUM *dmq1, BIGNUM *iqmp);
68 
69 extern void	sslshim_DSA_SIG_get0(const DSA_SIG *psig, const BIGNUM **pr,
70 				     const BIGNUM **ps);
71 extern int	sslshim_DSA_SIG_set0(DSA_SIG *psig, BIGNUM *r, BIGNUM *s);
72 extern void	sslshim_DSA_get0_pqg(const DSA *pdsa, const BIGNUM **pp,
73 				 const BIGNUM **pq, const BIGNUM **pg);
74 extern int	sslshim_DSA_set0_pqg(DSA *pdsa, BIGNUM *p, BIGNUM *q, BIGNUM *g);
75 extern void	sslshim_DSA_get0_key(const DSA *pdsa, const BIGNUM **ppub_key,
76 				 const BIGNUM **ppriv_key);
77 extern int	sslshim_DSA_set0_key(DSA *pdsa, BIGNUM *pub_key,
78 				     BIGNUM *priv_key);
79 
80 extern int	sslshim_X509_get_signature_nid(const X509 *x);
81 
82 #define	BN_GENCB_new		sslshimBN_GENCB_new
83 #define	BN_GENCB_free		sslshimBN_GENCB_free
84 
85 #define EVP_MD_CTX_new		sslshim_EVP_MD_CTX_new
86 #define EVP_MD_CTX_free		sslshim_EVP_MD_CTX_free
87 
88 #define EVP_PKEY_id		sslshim_EVP_PKEY_id
89 #define EVP_PKEY_base_id	sslshim_EVP_PKEY_base_id
90 #define EVP_PKEY_get0_RSA	sslshim_EVP_PKEY_get0_RSA
91 #define EVP_PKEY_get0_DSA	sslshim_EVP_PKEY_get0_DSA
92 
93 #define RSA_get0_key		sslshim_RSA_get0_key
94 #define RSA_set0_key		sslshim_RSA_set0_key
95 #define RSA_get0_factors	sslshim_RSA_get0_factors
96 #define RSA_set0_factors	sslshim_RSA_set0_factors
97 #define RSA_set0_crt_params	sslshim_RSA_set0_crt_params
98 
99 #define DSA_SIG_get0		sslshim_DSA_SIG_get0
100 #define DSA_SIG_set0		sslshim_DSA_SIG_set0
101 #define DSA_get0_pqg		sslshim_DSA_get0_pqg
102 #define DSA_set0_pqg		sslshim_DSA_set0_pqg
103 #define DSA_get0_key		sslshim_DSA_get0_key
104 #define DSA_set0_key		sslshim_DSA_set0_key
105 
106 #define X509_get_signature_nid	sslshim_X509_get_signature_nid
107 
108 #define OpenSSL_version_num	SSLeay
109 #define OpenSSL_version		SSLeay_version
110 #define X509_get0_notBefore	X509_get_notBefore
111 #define X509_getm_notBefore	X509_get_notBefore
112 #define X509_get0_notAfter	X509_get_notAfter
113 #define X509_getm_notAfter	X509_get_notAfter
114 
115 /* ----------------------------------------------------------------- */
116 #endif /* OPENSSL_VERSION_NUMBER < v1.1.0 */
117 /* ----------------------------------------------------------------- */
118 
119 #endif /* NTP_LIBSSL_COMPAT_H */
120