1 /* 2 * linux/can/core.h 3 * 4 * Protoypes and definitions for CAN protocol modules using the PF_CAN core 5 * 6 * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> 7 * Urs Thuermann <urs.thuermann@volkswagen.de> 8 * Copyright (c) 2002-2017 Volkswagen Group Electronic Research 9 * All rights reserved. 10 * 11 */ 12 13 #ifndef _CAN_CORE_H 14 #define _CAN_CORE_H 15 16 #include <linux/can.h> 17 #include <linux/skbuff.h> 18 #include <linux/netdevice.h> 19 20 #define CAN_VERSION "20170425" 21 22 /* increment this number each time you change some user-space interface */ 23 #define CAN_ABI_VERSION "9" 24 25 #define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION 26 27 #define DNAME(dev) ((dev) ? (dev)->name : "any") 28 29 /** 30 * struct can_proto - CAN protocol structure 31 * @type: type argument in socket() syscall, e.g. SOCK_DGRAM. 32 * @protocol: protocol number in socket() syscall. 33 * @ops: pointer to struct proto_ops for sock->ops. 34 * @prot: pointer to struct proto structure. 35 */ 36 struct can_proto { 37 int type; 38 int protocol; 39 const struct proto_ops *ops; 40 struct proto *prot; 41 }; 42 43 /* function prototypes for the CAN networklayer core (af_can.c) */ 44 45 extern int can_proto_register(const struct can_proto *cp); 46 extern void can_proto_unregister(const struct can_proto *cp); 47 48 int can_rx_register(struct net *net, struct net_device *dev, 49 canid_t can_id, canid_t mask, 50 void (*func)(struct sk_buff *, void *), 51 void *data, char *ident, struct sock *sk); 52 53 extern void can_rx_unregister(struct net *net, struct net_device *dev, 54 canid_t can_id, canid_t mask, 55 void (*func)(struct sk_buff *, void *), 56 void *data); 57 58 extern int can_send(struct sk_buff *skb, int loop); 59 extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); 60 61 #endif /* !_CAN_CORE_H */ 62