lapb.h

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/*
 * These are the public elements of the Linux LAPB module.
 */

#ifndef LAPB_KERNEL_H
#define LAPB_KERNEL_H

#define LAPB_OK         0
#define LAPB_BADTOKEN       1
#define LAPB_INVALUE        2
#define LAPB_CONNECTED      3
#define LAPB_NOTCONNECTED   4
#define LAPB_REFUSED        5
#define LAPB_TIMEDOUT       6
#define LAPB_NOMEM      7

#define LAPB_STANDARD       0x00
#define LAPB_EXTENDED       0x01

#define LAPB_SLP        0x00
#define LAPB_MLP        0x02

#define LAPB_DTE        0x00
#define LAPB_DCE        0x04

struct lapb_register_struct {
    void (*connect_confirmation)(struct net_device *dev, int reason);
    void (*connect_indication)(struct net_device *dev, int reason);
    void (*disconnect_confirmation)(struct net_device *dev, int reason);
    void (*disconnect_indication)(struct net_device *dev, int reason);
    int  (*data_indication)(struct net_device *dev, struct sk_buff *skb);
    void (*data_transmit)(struct net_device *dev, struct sk_buff *skb);
};

struct lapb_parms_struct {
    unsigned int t1;
    unsigned int t1timer;
    unsigned int t2;
    unsigned int t2timer;
    unsigned int n2;
    unsigned int n2count;
    unsigned int window;
    unsigned int state;
    unsigned int mode;
};

extern int lapb_register(struct net_device *dev,
             const struct lapb_register_struct *callbacks);
extern int lapb_unregister(struct net_device *dev);
extern int lapb_getparms(struct net_device *dev, struct lapb_parms_struct *parms);
extern int lapb_setparms(struct net_device *dev, struct lapb_parms_struct *parms);
extern int lapb_connect_request(struct net_device *dev);
extern int lapb_disconnect_request(struct net_device *dev);
extern int lapb_data_request(struct net_device *dev, struct sk_buff *skb);
extern int lapb_data_received(struct net_device *dev, struct sk_buff *skb);

#endif