| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
|---|---|
| 2 | /* |
| 3 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
| 4 | * operating system. INET is implemented using the BSD Socket |
| 5 | * interface as the means of communication with the user level. |
| 6 | * |
| 7 | * Definitions for the ICMP protocol. |
| 8 | * |
| 9 | * Version: @(#)icmp.h 1.0.3 04/28/93 |
| 10 | * |
| 11 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
| 12 | */ |
| 13 | #ifndef _LINUX_ICMP_H |
| 14 | #define _LINUX_ICMP_H |
| 15 | |
| 16 | #include <linux/skbuff.h> |
| 17 | #include <uapi/linux/icmp.h> |
| 18 | #include <uapi/linux/errqueue.h> |
| 19 | |
| 20 | static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb) |
| 21 | { |
| 22 | return (struct icmphdr *)skb_transport_header(skb); |
| 23 | } |
| 24 | |
| 25 | static inline bool icmp_is_err(int type) |
| 26 | { |
| 27 | switch (type) { |
| 28 | case ICMP_DEST_UNREACH: |
| 29 | case ICMP_SOURCE_QUENCH: |
| 30 | case ICMP_REDIRECT: |
| 31 | case ICMP_TIME_EXCEEDED: |
| 32 | case ICMP_PARAMETERPROB: |
| 33 | return true; |
| 34 | } |
| 35 | |
| 36 | return false; |
| 37 | } |
| 38 | |
| 39 | void ip_icmp_error_rfc4884(const struct sk_buff *skb, |
| 40 | struct sock_ee_data_rfc4884 *out, |
| 41 | int thlen, int off); |
| 42 | |
| 43 | #endif /* _LINUX_ICMP_H */ |
| 44 |