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