root/include/linux/lapb.h

INCLUDED FROM

   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 
  27 struct 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 
  36 struct 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 
  48 extern int lapb_register(struct net_device *dev,
  49                          const struct lapb_register_struct *callbacks);
  50 extern int lapb_unregister(struct net_device *dev);
  51 extern int lapb_getparms(struct net_device *dev, struct lapb_parms_struct *parms);
  52 extern int lapb_setparms(struct net_device *dev, struct lapb_parms_struct *parms);
  53 extern int lapb_connect_request(struct net_device *dev);
  54 extern int lapb_disconnect_request(struct net_device *dev);
  55 extern int lapb_data_request(struct net_device *dev, struct sk_buff *skb);
  56 extern int lapb_data_received(struct net_device *dev, struct sk_buff *skb);
  57 
  58 #endif