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#include <linux/skbuff.h>
10#include <linux/timer.h>
11
12struct net_device;
13
14#define LAPB_OK 0
15#define LAPB_BADTOKEN 1
16#define LAPB_INVALUE 2
17#define LAPB_CONNECTED 3
18#define LAPB_NOTCONNECTED 4
19#define LAPB_REFUSED 5
20#define LAPB_TIMEDOUT 6
21#define LAPB_NOMEM 7
22
23#define LAPB_STANDARD 0x00
24#define LAPB_EXTENDED 0x01
25
26#define LAPB_SLP 0x00
27#define LAPB_MLP 0x02
28
29#define LAPB_DTE 0x00
30#define LAPB_DCE 0x04
31
32struct lapb_register_struct {
33 void (*connect_confirmation)(struct net_device *dev, int reason);
34 void (*connect_indication)(struct net_device *dev, int reason);
35 void (*disconnect_confirmation)(struct net_device *dev, int reason);
36 void (*disconnect_indication)(struct net_device *dev, int reason);
37 int (*data_indication)(struct net_device *dev, struct sk_buff *skb);
38 void (*data_transmit)(struct net_device *dev, struct sk_buff *skb);
39};
40
41struct lapb_parms_struct {
42 unsigned int t1;
43 unsigned int t1timer;
44 unsigned int t2;
45 unsigned int t2timer;
46 unsigned int n2;
47 unsigned int n2count;
48 unsigned int window;
49 unsigned int state;
50 unsigned int mode;
51};
52
53extern int lapb_register(struct net_device *dev,
54 const struct lapb_register_struct *callbacks);
55extern int lapb_unregister(struct net_device *dev);
56extern int lapb_getparms(struct net_device *dev, struct lapb_parms_struct *parms);
57extern int lapb_setparms(struct net_device *dev, struct lapb_parms_struct *parms);
58extern int lapb_connect_request(struct net_device *dev);
59extern int lapb_disconnect_request(struct net_device *dev);
60extern int lapb_data_request(struct net_device *dev, struct sk_buff *skb);
61extern int lapb_data_received(struct net_device *dev, struct sk_buff *skb);
62
63#endif
64

source code of linux/include/linux/lapb.h