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