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/** @file
@brief ICMPv4 handler
This is not to be included by the application.
*/
/*
* Copyright (c) 2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __ICMPV4_H
#define __ICMPV4_H
#include <zephyr/types.h>
#include <zephyr/net/net_ip.h>
#include <zephyr/net/net_pkt.h>
#define NET_ICMPV4_DST_UNREACH 3 /* Destination unreachable */
#define NET_ICMPV4_TIME_EXCEEDED 11 /* Time exceeded */
#define NET_ICMPV4_BAD_IP_HEADER 12 /* Bad IP header */
#define NET_ICMPV4_DST_UNREACH_NO_PROTO 2 /* Protocol not supported */
#define NET_ICMPV4_DST_UNREACH_NO_PORT 3 /* Port unreachable */
#define NET_ICMPV4_TIME_EXCEEDED_FRAGMENT_REASSEMBLY_TIME 1 /* Fragment reassembly time exceeded */
#define NET_ICMPV4_BAD_IP_HEADER_LENGTH 2 /* Bad length field */
#define NET_ICMPV4_UNUSED_LEN 4
struct net_icmpv4_echo_req {
uint16_t identifier;
uint16_t sequence;
} __packed;
/**
* @brief Send ICMPv4 error message.
* @param pkt Network packet that this error is related to.
* @param type Type of the error message.
* @param code Code of the type of the error message.
* @return Return 0 if the sending succeed, <0 otherwise.
*/
int net_icmpv4_send_error(struct net_pkt *pkt, uint8_t type, uint8_t code);
#if defined(CONFIG_NET_NATIVE_IPV4)
enum net_verdict net_icmpv4_input(struct net_pkt *pkt,
struct net_ipv4_hdr *ip_hdr);
int net_icmpv4_create(struct net_pkt *pkt, uint8_t icmp_type, uint8_t icmp_code);
int net_icmpv4_finalize(struct net_pkt *pkt, bool force_chksum);
void net_icmpv4_init(void);
#else
#define net_icmpv4_init(...)
#endif
#endif /* __ICMPV4_H */