net_kern.h

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/*
 * Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 * Licensed under the GPL
 */

#ifndef __UM_NET_KERN_H
#define __UM_NET_KERN_H

#include <linux/netdevice.h>
#include <linux/platform_device.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
#include <linux/list.h>
#include <linux/workqueue.h>

struct uml_net {
    struct list_head list;
    struct net_device *dev;
    struct platform_device pdev;
    int index;
    unsigned char mac[ETH_ALEN];
};

struct uml_net_private {
    struct list_head list;
    spinlock_t lock;
    struct net_device *dev;
    struct timer_list tl;

    struct work_struct work;
    int fd;
    unsigned char mac[ETH_ALEN];
    int max_packet;
    unsigned short (*protocol)(struct sk_buff *);
    int (*open)(void *);
    void (*close)(int, void *);
    void (*remove)(void *);
    int (*read)(int, struct sk_buff *skb, struct uml_net_private *);
    int (*write)(int, struct sk_buff *skb, struct uml_net_private *);

    void (*add_address)(unsigned char *, unsigned char *, void *);
    void (*delete_address)(unsigned char *, unsigned char *, void *);
    char user[0];
};

struct net_kern_info {
    void (*init)(struct net_device *, void *);
    unsigned short (*protocol)(struct sk_buff *);
    int (*read)(int, struct sk_buff *skb, struct uml_net_private *);
    int (*write)(int, struct sk_buff *skb, struct uml_net_private *);
};

struct transport {
    struct list_head list;
    const char *name;
    int (* const setup)(char *, char **, void *);
    const struct net_user_info *user;
    const struct net_kern_info *kern;
    const int private_size;
    const int setup_size;
};

extern struct net_device *ether_init(int);
extern unsigned short ether_protocol(struct sk_buff *);
extern int tap_setup_common(char *str, char *type, char **dev_name,
                char **mac_out, char **gate_addr);
extern void register_transport(struct transport *new);
extern unsigned short eth_protocol(struct sk_buff *skb);

#endif