LXR linux/arch/um/include/shared/net

   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_USER_H__
   7#define __UM_NET_USER_H__
   8
   9#define ETH_ADDR_LEN (6)
  10#define ETH_HEADER_ETHERTAP (16)
  11#define ETH_HEADER_OTHER (26) /* 14 for ethernet + VLAN + MPLS for crazy people */
  12#define ETH_MAX_PACKET (1500)
  13
  14#define UML_NET_VERSION (4)
  15
  16struct net_user_info {
  17        int (*init)(void *, void *);
  18        int (*open)(void *);
  19        void (*close)(int, void *);
  20        void (*remove)(void *);
  21        void (*add_address)(unsigned char *, unsigned char *, void *);
  22        void (*delete_address)(unsigned char *, unsigned char *, void *);
  23        int max_packet;
  24        int mtu;
  25};
  26
  27extern void ether_user_init(void *data, void *dev);
  28extern void iter_addresses(void *d, void (*cb)(unsigned char *,
  29                                               unsigned char *, void *),
  30                           void *arg);
  31
  32extern void *get_output_buffer(int *len_out);
  33extern void free_output_buffer(void *buffer);
  34
  35extern int tap_open_common(void *dev, char *gate_addr);
  36extern void tap_check_ips(char *gate_addr, unsigned char *eth_addr);
  37
  38extern void read_output(int fd, char *output_out, int len);
  39
  40extern int net_read(int fd, void *buf, int len);
  41extern int net_recvfrom(int fd, void *buf, int len);
  42extern int net_write(int fd, void *buf, int len);
  43extern int net_send(int fd, void *buf, int len);
  44extern int net_sendto(int fd, void *buf, int len, void *to, int sock_len);
  45
  46extern void open_addr(unsigned char *addr, unsigned char *netmask, void *arg);
  47extern void close_addr(unsigned char *addr, unsigned char *netmask, void *arg);
  48
  49extern char *split_if_spec(char *str, ...);
  50
  51extern int dev_netmask(void *d, void *m);
  52
  53#endif
  54