net.h

This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

#ifndef NET_H__
#define NET_H__

#include "tcpip.h"
#include "buf.h"

#ifndef USER_SPACE
/*
 * This structure is private to each device. It is used to pass
 * packets in and out, so there is place for a packet
 */
#define NET_RX_INTR 1
#define NET_TX_INTR 2
struct net_priv {
  struct net_device_stats stats;
  int status;
  int rx_packetlen;
  u8 *rx_packetdata;
  int tx_packetlen;
  u8 *tx_packetdata;
  struct sk_buff *skb;
  spinlock_t lock;
  struct buffer_t *buf;
};
#else
struct net_priv {
  int status;
  int rx_packetlen;
  u8 *rx_packetdata;
  int tx_packetlen;
  u8 *tx_packetdata;
  struct buffer_t *buf;
};

struct sk_buff {
  int v;
};

struct net_device {
  void *priv;
};
#endif

/*
 * Generate a packet
 */
int net_tx( struct buffer_t *buf );


/**
 * @short sends a packet to the kernel
 *
 * Takes a packet, makes a nice envelope and sends it to
 * the kernel.
 *
 * @param block the packet
 * @param len the length in bytes
 */
void net_send_to_kernel(struct net_device *dev, char *buf, int len);

/**
 * The initialisation function called by an insmod tcpip
 */
int net_init( void );


/**
 * The cleanup function called when rmmod tcpip
 */
void net_cleanup( void );

#endif