diff --git a/platform/include/internal/ssl_stream.h b/platform/include/internal/ssl_stream.h
index f6bbfb1..5383495 100644
--- a/platform/include/internal/ssl_stream.h
+++ b/platform/include/internal/ssl_stream.h
@@ -22,8 +22,7 @@ struct bufferevent * ssl_downstream_create_result_release_bev(future_result_t *
 void ssl_async_downstream_create(struct future * f, struct ssl_mgr * mgr, struct ssl_stream * upstream, 
 	evutil_socket_t fd_downstream, int keyring_id, unsigned int thread_id);
 void ssl_stream_free_and_close_fd(struct ssl_stream * stream, struct event_base * evbase, evutil_socket_t fd);
-void ssl_stream_log_error(struct bufferevent * bev, enum tfe_conn_dir dir, void* logger);
-
+const char* ssl_stream_dump_info(struct ssl_stream *stream, char* buffer, size_t sz);
 //Follow functions are allowed to call during runtime.
 int ssl_manager_add_trust_ca(struct ssl_mgr* mgr, const char* pem_file);
 int ssl_manager_del_trust_ca(struct ssl_mgr* mgr, const char* pem_file);
diff --git a/platform/src/ssl_stream.cpp b/platform/src/ssl_stream.cpp
index 14539bc..ccfd716 100644
--- a/platform/src/ssl_stream.cpp
+++ b/platform/src/ssl_stream.cpp
@@ -886,6 +886,12 @@ struct bufferevent * ssl_upstream_create_result_release_bev(future_result_t * re
 	ctx->bev = NULL;                                //giveup ownership
 	return ret;
 }
+const char* ssl_stream_dump_info(struct ssl_stream *stream, char* buffer, size_t sz)
+{
+	snprintf(buffer, sz, "%s:%s", SSL_get_version(stream->ssl),
+								stream->dir==CONN_DIR_UPSTREAM ? stream->client_hello->sni:NULL);
+	return buffer;
+}
 void ssl_stream_log_error(struct bufferevent * bev, enum tfe_conn_dir dir, struct ssl_mgr* mgr)
 {
 	unsigned long sslerr=0;