transport.h

wimax BS simulation code,implemented under linux.

/*
 * This piece of code is totally free. If any pitfalls found, 
 * please feel free to contact me at [e-mail]
 * THANKS A LOT!
 */

#ifndef TRANSPORT_H_
#define TRANSPORT_H_

#include <net/if.h>

typedef struct
{
	int fd;
	int ifindex;
	unsigned char mac[6];

} TRANSPORT;

typedef int (ETH_FRM_FILTER)(const TRANSPORT* tp, 
			     const unsigned char* src, 
			     const unsigned char* dst, 
			     unsigned short type); /* return 1 if succ otherwise 0 */

extern const unsigned char BROADCAST_MAC[6];

int get_macaddr(const char* dev_name, int* ifindex, unsigned char mac_addr[]);
int eth_create(TRANSPORT* tp, int ifindex, const unsigned char src_mac[]);
int eth_build_header(TRANSPORT* tp, 
		     const unsigned char* dst_mac /* 0 indicates broadcast */, 
		     unsigned short type, 
		     unsigned char* buf);
int eth_send(TRANSPORT* tp,
	     const unsigned char* dst_mac,
	     unsigned char* buf,
	     unsigned short len);
int eth_recv(TRANSPORT* tp, 
	     ETH_FRM_FILTER* filter, 
	     unsigned char* data, /* the output data contains the mac header */
	     unsigned short len   /* length of mac header and payload */);
int eth_filter(const TRANSPORT* tp,
	       const unsigned char* src,
	       const unsigned char* dst,
	       unsigned short type);


#endif