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-rw-r--r--ext/openssl/extconf.rb1
-rw-r--r--ext/openssl/ossl_ssl.c22
2 files changed, 23 insertions, 0 deletions
diff --git a/ext/openssl/extconf.rb b/ext/openssl/extconf.rb
index 0b7fa2aaf9..c36a7021e4 100644
--- a/ext/openssl/extconf.rb
+++ b/ext/openssl/extconf.rb
@@ -111,6 +111,7 @@ have_func("TLSv1_2_server_method")
have_func("TLSv1_2_client_method")
have_func("SSL_CTX_set_alpn_select_cb")
have_func("SSL_CTX_set_next_proto_select_cb")
+have_macro("SSL_get_server_tmp_key", ['openssl/ssl.h']) && $defs.push("-DHAVE_SSL_GET_SERVER_TMP_KEY")
unless have_func("SSL_set_tlsext_host_name", ['openssl/ssl.h'])
have_macro("SSL_set_tlsext_host_name", ['openssl/ssl.h']) && $defs.push("-DHAVE_SSL_SET_TLSEXT_HOST_NAME")
end
diff --git a/ext/openssl/ossl_ssl.c b/ext/openssl/ossl_ssl.c
index 5fcd2145c3..96c7990046 100644
--- a/ext/openssl/ossl_ssl.c
+++ b/ext/openssl/ossl_ssl.c
@@ -1912,6 +1912,25 @@ ossl_ssl_alpn_protocol(VALUE self)
return rb_str_new((const char *) out, outlen);
}
# endif
+
+# ifdef HAVE_SSL_GET_SERVER_TMP_KEY
+/*
+ * call-seq:
+ * ssl.tmp_key => PKey or nil
+ *
+ * Returns the ephemeral key used in case of forward secrecy cipher
+ */
+static VALUE
+ossl_ssl_tmp_key(VALUE self)
+{
+ SSL *ssl;
+ EVP_PKEY *key;
+ ossl_ssl_data_get_struct(self, ssl);
+ if (!SSL_get_server_tmp_key(ssl, &key))
+ return Qnil;
+ return ossl_pkey_new(key);
+}
+# endif /* defined(HAVE_SSL_GET_SERVER_TMP_KEY) */
#endif /* !defined(OPENSSL_NO_SOCK) */
void
@@ -2306,6 +2325,9 @@ Init_ossl_ssl(void)
rb_define_method(cSSLSocket, "session=", ossl_ssl_set_session, 1);
rb_define_method(cSSLSocket, "verify_result", ossl_ssl_get_verify_result, 0);
rb_define_method(cSSLSocket, "client_ca", ossl_ssl_get_client_ca_list, 0);
+# ifdef HAVE_SSL_GET_SERVER_TMP_KEY
+ rb_define_method(cSSLSocket, "tmp_key", ossl_ssl_tmp_key, 0);
+# endif
# ifdef HAVE_SSL_CTX_SET_ALPN_SELECT_CB
rb_define_method(cSSLSocket, "alpn_protocol", ossl_ssl_alpn_protocol, 0);
# endif