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/* 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, <waltje@uWalt.NL.Mugnet.ORG>
*/
#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)
{
return (struct icmphdr *)skb_transport_header(skb);
}
static inline bool icmp_is_err(int type)
{
switch (type) {
case ICMP_DEST_UNREACH:
case ICMP_SOURCE_QUENCH:
case ICMP_REDIRECT:
case ICMP_TIME_EXCEEDED:
case ICMP_PARAMETERPROB:
return true;
}
return false;
}
void ip_icmp_error_rfc4884(const struct sk_buff *skb,
struct sock_ee_data_rfc4884 *out,
int thlen, int off);
#endif /* _LINUX_ICMP_H */