LXR linux/include/linux/lapb.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * These are the public elements of the Linux LAPB module.
   4 */
   5
   6#ifndef LAPB_KERNEL_H
   7#define LAPB_KERNEL_H
   8
   9#define LAPB_OK                 0
  10#define LAPB_BADTOKEN           1
  11#define LAPB_INVALUE            2
  12#define LAPB_CONNECTED          3
  13#define LAPB_NOTCONNECTED       4
  14#define LAPB_REFUSED            5
  15#define LAPB_TIMEDOUT           6
  16#define LAPB_NOMEM              7
  17
  18#define LAPB_STANDARD           0x00
  19#define LAPB_EXTENDED           0x01
  20
  21#define LAPB_SLP                0x00
  22#define LAPB_MLP                0x02
  23
  24#define LAPB_DTE                0x00
  25#define LAPB_DCE                0x04
  26
  27struct lapb_register_struct {
  28        void (*connect_confirmation)(struct net_device *dev, int reason);
  29        void (*connect_indication)(struct net_device *dev, int reason);
  30        void (*disconnect_confirmation)(struct net_device *dev, int reason);
  31        void (*disconnect_indication)(struct net_device *dev, int reason);
  32        int  (*data_indication)(struct net_device *dev, struct sk_buff *skb);
  33        void (*data_transmit)(struct net_device *dev, struct sk_buff *skb);
  34};
  35
  36struct lapb_parms_struct {
  37        unsigned int t1;
  38        unsigned int t1timer;
  39        unsigned int t2;
  40        unsigned int t2timer;
  41        unsigned int n2;
  42        unsigned int n2count;
  43        unsigned int window;
  44        unsigned int state;
  45        unsigned int mode;
  46};
  47
  48extern int lapb_register(struct net_device *dev,
  49                         const struct lapb_register_struct *callbacks);
  50extern int lapb_unregister(struct net_device *dev);
  51extern int lapb_getparms(struct net_device *dev, struct lapb_parms_struct *parms);
  52extern int lapb_setparms(struct net_device *dev, struct lapb_parms_struct *parms);
  53extern int lapb_connect_request(struct net_device *dev);
  54extern int lapb_disconnect_request(struct net_device *dev);
  55extern int lapb_data_request(struct net_device *dev, struct sk_buff *skb);
  56extern int lapb_data_received(struct net_device *dev, struct sk_buff *skb);
  57
  58#endif
  59