~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,3 +1,4 @@
	1	+/* SPDX-License-Identifier: GPL-2.0-or-later */
1	2	/*
2	3	* INET An implementation of the TCP/IP protocol suite for the LINUX
3	4	* operating system. INET is implemented using the BSD Socket
..	..	@@ -8,20 +9,35 @@
8	9	* Version: @(#)icmp.h 1.0.3 04/28/93
9	10	*
10	11	* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
11		- *
12		- * This program is free software; you can redistribute it and/or
13		- * modify it under the terms of the GNU General Public License
14		- * as published by the Free Software Foundation; either version
15		- * 2 of the License, or (at your option) any later version.
16	12	*/
17	13	#ifndef _LINUX_ICMP_H
18	14	#define _LINUX_ICMP_H
19	15
20	16	#include <linux/skbuff.h>
21	17	#include <uapi/linux/icmp.h>
	18	+#include <uapi/linux/errqueue.h>
22	19
23	20	static inline struct icmphdr icmp_hdr(const struct sk_buff skb)
24	21	{
25	22	return (struct icmphdr *)skb_transport_header(skb);
26	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	+
27	43	#endif /* _LINUX_ICMP_H */