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openssl: Add macro to define fallback functions for non-opaque OpenSSL versions

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Tobias Brunner
2016-06-29 11:09:37 +02:00
parent 54d629b7ad
commit 6d5df086f7
1 changed files with 38 additions and 0 deletions
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src/libstrongswan/plugins/openssl/openssl_util.h
+38
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@@ -134,4 +134,42 @@ int openssl_asn1_known_oid(ASN1_OBJECT *obj);
*/
time_t openssl_asn1_to_time(ASN1_TIME *time);
/**
* Macros to define fallback getters/setters to access keys (BIGNUM*) for types
* that were made opaque with OpenSSL 1.1.0.
*/
#define OPENSSL_KEY_FALLBACK(...) VA_ARGS_DISPATCH(OPENSSL_KEY_FALLBACK, __VA_ARGS__)(__VA_ARGS__)
#define OPENSSL_KEY_FALLBACK3(type, k1, k2) \
__attribute__((unused)) \
static inline void type##_get0(const type *o, const BIGNUM **k1, const BIGNUM **k2) { \
if (k1) *k1 = o->k1; \
if (k2) *k2 = o->k2; } \
__attribute__((unused)) \
static inline int type##_set0(type *o, BIGNUM *k1, BIGNUM *k2) { \
if (k1) { BN_clear_free(o->k1); o->k1 = k1; } \
if (k2) { BN_clear_free(o->k2); o->k2 = k2; } \
return 1; }
#define OPENSSL_KEY_FALLBACK4(type, name, k1, k2) \
__attribute__((unused)) \
static inline void type##_get0_##name(const type *o, const BIGNUM **k1, const BIGNUM **k2) { \
if (k1) *k1 = o->k1; \
if (k2) *k2 = o->k2; } \
__attribute__((unused)) \
static inline int type##_set0_##name(type *o, BIGNUM *k1, BIGNUM *k2) { \
if (k1) { BN_clear_free(o->k1); o->k1 = k1; } \
if (k2) { BN_clear_free(o->k2); o->k2 = k2; } \
return 1; }
#define OPENSSL_KEY_FALLBACK5(type, name, k1, k2, k3) \
__attribute__((unused)) \
static inline void type##_get0_##name(const type *o, const BIGNUM **k1, const BIGNUM **k2, const BIGNUM **k3) { \
if (k1) *k1 = o->k1; \
if (k2) *k2 = o->k2; \
if (k3) *k3 = o->k3; } \
__attribute__((unused)) \
static inline int type##_set0_##name(type *o, BIGNUM *k1, BIGNUM *k2, BIGNUM *k3) { \
if (k1) { BN_clear_free(o->k1); o->k1 = k1; } \
if (k2) { BN_clear_free(o->k2); o->k2 = k2; } \
if (k3) { BN_clear_free(o->k3); o->k3 = k3; } \
return 1; }
#endif /** OPENSSL_UTIL_H_ @}*/