增加TCP Passthrough功能实现，调通明文转发流程。

platform/include/internal/proxy.h

@@ -6,6 +6,7 @@
 
 struct ssl_mgr;
 struct key_keeper;
+struct kni_acceptor;
 
 struct tfe_proxy
 {
@@ -14,18 +15,19 @@ struct tfe_proxy
 	struct event * sev[8];
 	struct event * gcev;
 
-	struct tfe_config * opts;
-	void * main_logger;
+	void * logger;
 
 	unsigned int nr_work_threads;
-	struct tfe_thread_ctx * work_threads;
+	struct tfe_thread_ctx * work_threads[TFE_THREAD_MAX];
 
 	unsigned int nr_modules;
 	struct tfe_plugin * modules;
-	void * io_mod;
 
 	struct ssl_mgr * ssl_mgr_handler;
 	struct key_keeper * key_keeper_handler;
+	struct kni_acceptor * kni_acceptor_handler;
+
+	unsigned int tcp_all_passthrough;
 };
 
 struct tfe_proxy_accept_para
@@ -35,9 +37,14 @@ struct tfe_proxy_accept_para
 	evutil_socket_t downstream_fd;
 
 	/* Session Type */
+	bool is_set_session_type;
 	enum tfe_session_proto session_type;
+	bool passthrough;
 };
 
+struct tfe_thread_ctx * tfe_proxy_thread_ctx_acquire(struct tfe_proxy * ctx);
+void tfe_proxy_thread_ctx_release(struct tfe_thread_ctx * thread_ctx);
+
 struct tfe_proxy * tfe_proxy_new(const char * profile);
 int tfe_proxy_fds_accept(struct tfe_proxy * ctx, const struct tfe_proxy_accept_para * para);
 void tfe_proxy_run(struct tfe_proxy * proxy);