linux/include/linux/icmp.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions for the ICMP protocol.
 *
 * Version:	@(#)icmp.h	1.0.3	04/28/93
 *
 * Author:	Fred N. van Kempen, <[email protected]>
 */
#ifndef _LINUX_ICMP_H
#define _LINUX_ICMP_H

#include <linux/skbuff.h>
#include <uapi/linux/icmp.h>
#include <uapi/linux/errqueue.h>

static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
{ … }

static inline bool icmp_is_err(int type)
{ … }

void ip_icmp_error_rfc4884(const struct sk_buff *skb,
			   struct sock_ee_data_rfc4884 *out,
			   int thlen, int off);

#endif	/* _LINUX_ICMP_H */