#define TFE_STRING_MAX		2048
#define TFE_SYMBOL_MAX		64
struct tfe_conn_ctx
{
	sockaddr_t dst;
	struct pxy_conn_desc src;
	struct pxy_conn_desc dst;
	int cur_dir//1: c2s; 2:s2c
	char* sni;
};
struct tfe_conn_inner
{
	int a;
	struct tfe_conn_ctx conn_desc;
	void **proto_arg;
};


//Return 1 for identify as its ttraffic;
//Return 0 for unknown traffic;
typedef int proto_pend_cb_t(const struct tfe_conn_ctx* c, struct evbuffer *data, void **pme);

enum tfe_proto_action
{
	PROTO_ATCION_FORWARD,
	PROTO_ACTION_DEFER,
	PROTO_ACTION_STEAL,
	PROTO_ACTION_PASSTHROUGH,
	PROTO_ACTION_CLOSE
};

typedef tfe_proto_action proto_read_cb_t(const struct tfe_conn_ctx* ctx, struct evbuffer *data, void **pme);

typedef void proto_close_cb_t(const struct tfe_conn_ctx* ctx, int ev, void **pme);

//typedef int proto_onwrite_cb_t(struct tfe_conn_ctx*, struct evbuffer *data, void **pme);

struct tfe_proto_module
{
	char symbol[TFE_SYMBOL_MAX];
	proto_pend_cb_t *on_pend;
	proto_read_cb_t *on_read;
	proto_close_cb_t *on_close;
//	proto_onwrite_cb_t *onwrite;
	
};
int tfe_io_write(struct pxy_conn_desc* dest,int dir,struct evbuffer *data);

int tfe_xxx_proto_init(struct tfe_proto_module*m);