netdev2_tap.h
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/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for
* more details.
*/
/**
* @ingroup netdev2
* @brief Low-level ethernet driver for native tap interfaces
* @{
*
* @file
* @brief Definitions for @ref netdev2 ethernet driver for host system's
* TAP interfaces
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*/
#ifndef NETDEV2_TAP_H
#define NETDEV2_TAP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include "net/netdev2.h"
#include "net/ethernet/hdr.h"
#ifdef __MACH__
#include "net/if_var.h"
#else
#include "net/if.h"
#endif
/**
* @brief tap interface state
*/
typedef struct netdev2_tap {
netdev2_t netdev; /**< netdev2 internal member */
char tap_name[IFNAMSIZ]; /**< host dev file name */
int tap_fd; /**< host file descriptor for the TAP */
uint8_t addr[ETHERNET_ADDR_LEN]; /**< The MAC address of the TAP */
uint8_t promiscous; /**< Flag for promiscous mode */
} netdev2_tap_t;
/**
* @brief tap interface initialization parameters
*/
typedef struct {
char **tap_name; /**< Name of the host system's tap
inteface to bind to. */
} netdev2_tap_params_t;
/**
* @brief global device struct. driver only supports one tap device as of now.
*/
extern netdev2_tap_t netdev2_tap;
/**
* @brief Setup netdev2_tap_t structure.
*
* @param dev the preallocated netdev2_tap device handle to setup
* @param params initialization parameters
*/
void netdev2_tap_setup(netdev2_tap_t *dev, const netdev2_tap_params_t *params);
/**
* @brief Cleanup tap resources
*
* @param dev the netdev2_tap device handle to cleanup
*/
void netdev2_tap_cleanup(netdev2_tap_t *dev);
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* NETDEV2_TAP_H */