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 59