mesa-framework-mesa-jump-layer/inc/MESA_jump_layer.h

#ifndef __MESA_JUMP_LAYER_H_
#define __MESA_JUMP_LAYER_H_ 1
#endif

#ifdef __cplusplus
extern "C" {
#endif

#include "stream.h"
#include <netinet/ip.h>
#include <netinet/ip6.h>


const char *MESA_jump_layer_get_last_error(void);


/*
	CHN : <EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>ͷ<EFBFBD><EFBFBD>ƫ<EFBFBD>ƺ<EFBFBD><EFBFBD><EFBFBD>.

	<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
		raw_data: <EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>;
		raw_layer_type: <EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>: enum addr_type_t ;
		expect_layer_type: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>:  enum addr_type_t ;

	<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ:
		NULL: <EFBFBD>޴˵<EFBFBD>ַ;
		NON-NULL: <EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ.

	<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
		<EFBFBD><EFBFBD><EFBFBD>赱ǰ<EFBFBD><EFBFBD>ΪEthernet, <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>ַΪthis_layer_hdr, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>IPv6<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>:
		struct ip6_hdr *ip6_header;
		ip6_header = MESA_net_jump_to_layer(this_layer_hdr, ADDR_TYPE_MAC, ADDR_TYPE_IPV6);
*/
const void *MESA_jump_layer(const void *raw_data,  int raw_layer_type, int expect_layer_type);

/*
	MESA_jump_layer_greedy<EFBFBD><EFBFBD>MESA_jump_layer<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:
	   <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵,
	       MESA_jump_layer<EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>expect_layer_type;
	       MESA_jump_layer_greedy<EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>expect_layer_type; 
*/
const void *MESA_jump_layer_greedy(const void *raw_data, int raw_layer_type, int expect_layer_type);



/* <20><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>Ľӿ<C4BD><D3BF><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC> */
const void *MESA_net_jump_to_layer(const void *raw_data,  int raw_layer_type, int expect_layer_type);
const void *MESA_net_jump_to_layer_greedy(const void *raw_data, int raw_layer_type, int expect_layer_type);



const char *MESA_jump_layer_ipv4_ntop(const struct ip *ip4_hdr, char *out_buf, int buf_len );
const char *MESA_jump_layer_ipv6_ntop(const struct ip6_hdr *ip6_hdr, char *out_buf, int buf_len);

#ifdef __cplusplus
}
#endif