| /* 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> |
| |
| 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; |
| } |
| |
| #endif /* _LINUX_ICMP_H */ |
