| /* 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 */ |