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/** @file
@brief IPv4 related functions
This is not to be included by the application.
*/
/*
* Copyright (c) 2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __IPV4_H
#define __IPV4_H
#include <zephyr/types.h>
#include <net/net_ip.h>
#include <net/net_pkt.h>
#include <net/net_if.h>
#include <net/net_context.h>
#define NET_IPV4_IHL_MASK 0x0F
/**
* @brief Create IPv4 packet in provided net_pkt.
*
* @param pkt Network packet
* @param src Source IPv4 address
* @param dst Destination IPv4 address
*
* @return 0 on success, negative errno otherwise.
*/
int net_ipv4_create(struct net_pkt *pkt,
const struct in_addr *src,
const struct in_addr *dst);
/**
* @brief Finalize IPv4 packet. It should be called right before
* sending the packet and after all the data has been added into
* the packet. This function will set the length of the
* packet and calculate the higher protocol checksum if needed.
*
* @param pkt Network packet
* @param next_header_proto Protocol type of the next header after IPv4 header.
*
* @return 0 on success, negative errno otherwise.
*/
int net_ipv4_finalize(struct net_pkt *pkt, u8_t next_header_proto);
#endif /* __IPV4_H */