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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) *//* * linux/can/core.h * * Prototypes and definitions for CAN protocol modules using the PF_CAN core * * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> * Urs Thuermann <urs.thuermann@volkswagen.de> * Copyright (c) 2002-2017 Volkswagen Group Electronic Research * All rights reserved. * */
#ifndef _CAN_CORE_H#define _CAN_CORE_H
#include <linux/can.h>#include <linux/skbuff.h>#include <linux/netdevice.h>
#define DNAME(dev) ((dev) ? (dev)->name : "any")
/** * struct can_proto - CAN protocol structure * @type: type argument in socket() syscall, e.g. SOCK_DGRAM. * @protocol: protocol number in socket() syscall. * @ops: pointer to struct proto_ops for sock->ops. * @prot: pointer to struct proto structure. */struct can_proto { int type; int protocol; const struct proto_ops *ops; struct proto *prot;};
/* required_size * macro to find the minimum size of a struct * that includes a requested member */#define CAN_REQUIRED_SIZE(struct_type, member) \ (offsetof(typeof(struct_type), member) + \ sizeof(((typeof(struct_type) *)(NULL))->member))
/* function prototypes for the CAN networklayer core (af_can.c) */
extern int can_proto_register(const struct can_proto *cp);extern void can_proto_unregister(const struct can_proto *cp);
int can_rx_register(struct net *net, struct net_device *dev, canid_t can_id, canid_t mask, void (*func)(struct sk_buff *, void *), void *data, char *ident, struct sock *sk);
extern void can_rx_unregister(struct net *net, struct net_device *dev, canid_t can_id, canid_t mask, void (*func)(struct sk_buff *, void *), void *data);
extern int can_send(struct sk_buff *skb, int loop);void can_set_skb_uid(struct sk_buff *skb);void can_sock_destruct(struct sock *sk);
#endif /* !_CAN_CORE_H */