root/arch/um/include/shared/net_kern.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   4  */
   5 
   6 #ifndef __UM_NET_KERN_H
   7 #define __UM_NET_KERN_H
   8 
   9 #include <linux/netdevice.h>
  10 #include <linux/platform_device.h>
  11 #include <linux/skbuff.h>
  12 #include <linux/socket.h>
  13 #include <linux/list.h>
  14 #include <linux/workqueue.h>
  15 
  16 struct uml_net {
  17         struct list_head list;
  18         struct net_device *dev;
  19         struct platform_device pdev;
  20         int index;
  21 };
  22 
  23 struct uml_net_private {
  24         struct list_head list;
  25         spinlock_t lock;
  26         struct net_device *dev;
  27         struct timer_list tl;
  28 
  29         struct work_struct work;
  30         int fd;
  31         unsigned char mac[ETH_ALEN];
  32         int max_packet;
  33         unsigned short (*protocol)(struct sk_buff *);
  34         int (*open)(void *);
  35         void (*close)(int, void *);
  36         void (*remove)(void *);
  37         int (*read)(int, struct sk_buff *skb, struct uml_net_private *);
  38         int (*write)(int, struct sk_buff *skb, struct uml_net_private *);
  39 
  40         void (*add_address)(unsigned char *, unsigned char *, void *);
  41         void (*delete_address)(unsigned char *, unsigned char *, void *);
  42         char user[0];
  43 };
  44 
  45 struct net_kern_info {
  46         void (*init)(struct net_device *, void *);
  47         unsigned short (*protocol)(struct sk_buff *);
  48         int (*read)(int, struct sk_buff *skb, struct uml_net_private *);
  49         int (*write)(int, struct sk_buff *skb, struct uml_net_private *);
  50 };
  51 
  52 struct transport {
  53         struct list_head list;
  54         const char *name;
  55         int (* const setup)(char *, char **, void *);
  56         const struct net_user_info *user;
  57         const struct net_kern_info *kern;
  58         const int private_size;
  59         const int setup_size;
  60 };
  61 
  62 extern struct net_device *ether_init(int);
  63 extern unsigned short ether_protocol(struct sk_buff *);
  64 extern int tap_setup_common(char *str, char *type, char **dev_name,
  65                             char **mac_out, char **gate_addr);
  66 extern void register_transport(struct transport *new);
  67 extern unsigned short eth_protocol(struct sk_buff *skb);
  68 extern void uml_net_setup_etheraddr(struct net_device *dev, char *str);
  69 
  70 
  71 #endif