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[]; 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 int tap_setup_common(char *str, char *type, char **dev_name, 63 char **mac_out, char **gate_addr); 64 extern void register_transport(struct transport *new); 65 extern unsigned short eth_protocol(struct sk_buff *skb); 66 extern void uml_net_setup_etheraddr(struct net_device *dev, char *str); 67 68 69 #endif 70