xref: /freebsd/contrib/ntp/include/libssl_compat.h (revision b0b1dbdd)
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 /* ----------------------------------------------------------------- */
28 #if OPENSSL_VERSION_NUMBER < 0x10100000L
29 /* ----------------------------------------------------------------- */
30 
31 # include <openssl/objects.h>
32 # include <openssl/x509.h>
33 
34 /* shim the new-style API on an old-style OpenSSL */
35 
36 extern BN_GENCB*	sslshimBN_GENCB_new(void);
37 extern void		sslshimBN_GENCB_free(BN_GENCB*);
38 
39 extern EVP_MD_CTX*	sslshim_EVP_MD_CTX_new(void);
40 extern void		sslshim_EVP_MD_CTX_free(EVP_MD_CTX *ctx);
41 
42 extern int	sslshim_EVP_PKEY_id(const EVP_PKEY * pkey);
43 extern int	sslshim_EVP_PKEY_base_id(const EVP_PKEY * pkey);
44 extern RSA*	sslshim_EVP_PKEY_get0_RSA(EVP_PKEY * pkey);
45 extern DSA*	sslshim_EVP_PKEY_get0_DSA(EVP_PKEY * pkey);
46 
47 extern void	sslshim_RSA_get0_key(const RSA *prsa, const BIGNUM **pn,
48 				     const BIGNUM **pe, const BIGNUM **pd);
49 extern int	sslshim_RSA_set0_key(RSA *prsa, BIGNUM *n,
50 				     BIGNUM *e, BIGNUM *d);
51 extern void	sslshim_RSA_get0_factors(const RSA *prsa, const BIGNUM **pp,
52 					 const BIGNUM **pq);
53 extern int 	sslshim_RSA_set0_factors(RSA *prsar, BIGNUM *p, BIGNUM *q);
54 extern int	sslshim_RSA_set0_crt_params(RSA *prsa, BIGNUM *dmp1,
55 					BIGNUM *dmq1, BIGNUM *iqmp);
56 
57 extern void	sslshim_DSA_SIG_get0(const DSA_SIG *psig, const BIGNUM **pr,
58 				     const BIGNUM **ps);
59 extern int	sslshim_DSA_SIG_set0(DSA_SIG *psig, BIGNUM *r, BIGNUM *s);
60 extern void	sslshim_DSA_get0_pqg(const DSA *pdsa, const BIGNUM **pp,
61 				 const BIGNUM **pq, const BIGNUM **pg);
62 extern int	sslshim_DSA_set0_pqg(DSA *pdsa, BIGNUM *p, BIGNUM *q, BIGNUM *g);
63 extern void	sslshim_DSA_get0_key(const DSA *pdsa, const BIGNUM **ppub_key,
64 				 const BIGNUM **ppriv_key);
65 extern int	sslshim_DSA_set0_key(DSA *pdsa, BIGNUM *pub_key,
66 				     BIGNUM *priv_key);
67 
68 extern int	sslshim_X509_get_signature_nid(const X509 *x);
69 
70 #define	BN_GENCB_new		sslshimBN_GENCB_new
71 #define	BN_GENCB_free		sslshimBN_GENCB_free
72 
73 #define EVP_MD_CTX_new		sslshim_EVP_MD_CTX_new
74 #define EVP_MD_CTX_free		sslshim_EVP_MD_CTX_free
75 
76 #define EVP_PKEY_id		sslshim_EVP_PKEY_id
77 #define EVP_PKEY_base_id	sslshim_EVP_PKEY_base_id
78 #define EVP_PKEY_get0_RSA	sslshim_EVP_PKEY_get0_RSA
79 #define EVP_PKEY_get0_DSA	sslshim_EVP_PKEY_get0_DSA
80 
81 #define RSA_get0_key		sslshim_RSA_get0_key
82 #define RSA_set0_key		sslshim_RSA_set0_key
83 #define RSA_get0_factors	sslshim_RSA_get0_factors
84 #define RSA_set0_factors	sslshim_RSA_set0_factors
85 #define RSA_set0_crt_params	sslshim_RSA_set0_crt_params
86 
87 #define DSA_SIG_get0		sslshim_DSA_SIG_get0
88 #define DSA_SIG_set0		sslshim_DSA_SIG_set0
89 #define DSA_get0_pqg		sslshim_DSA_get0_pqg
90 #define DSA_set0_pqg		sslshim_DSA_set0_pqg
91 #define DSA_get0_key		sslshim_DSA_get0_key
92 #define DSA_set0_key		sslshim_DSA_set0_key
93 
94 #define X509_get_signature_nid	sslshim_X509_get_signature_nid
95 
96 /* ----------------------------------------------------------------- */
97 #endif /* OPENSSL_VERSION_NUMBER < v1.1.0 */
98 /* ----------------------------------------------------------------- */
99 
100 #endif /* NTP_LIBSSL_COMPAT_H */
101