Commit 6b495dc4c5cfc118091ddc9c19330b3c9e3e3dff introduced
RSA_meth_set_sign, which is OpenSSL 1.1.0 and newer. Add a compatibility
definition.
---
configure.ac | 1 +
src/openvpn/openssl_compat.h | 20 ++++++++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/configure.ac b/configure.ac
index 3d8e15bd..399cdf4e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -943,6 +943,7 @@ if test "${with_crypto_library}" = "openssl"; then
RSA_meth_set_priv_enc \
RSA_meth_set_priv_dec \
RSA_meth_set_init \
+ RSA_meth_set_sign \
RSA_meth_set_finish \
RSA_meth_set0_app_data \
RSA_meth_get0_app_data \
diff --git a/src/openvpn/openssl_compat.h b/src/openvpn/openssl_compat.h
index f5328c4c..9560b29f 100644
--- a/src/openvpn/openssl_compat.h
+++ b/src/openvpn/openssl_compat.h
@@ -585,6 +585,26 @@ RSA_meth_set_init(RSA_METHOD *meth, int (*init) (RSA *rsa))
}
#endif
+#if !defined (HAVE_RSA_METH_SET_SIGN)
+/**
+ * Set the sign function of an RSA_METHOD object
+ *
+ * @param meth The RSA_METHOD object
+ * @param sign The sign function
+ * @return 1 on success, 0 on error
+ */
+static inline
+int RSA_meth_set_sign(RSA_METHOD *meth,
+ int (*sign) (int type, const unsigned char *m,
+ unsigned int m_length,
+ unsigned char *sigret, unsigned int *siglen,
+ const RSA *rsa))
+{
+ meth->rsa_sign = sign;
+ return 1;
+}
+#endif
+
#if !defined(HAVE_RSA_METH_SET_FINISH)
/**
* Set the finish function of an RSA_METHOD object
--
2.19.0
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