hdr.h
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/*
* Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup net_gnrc_ipv6_hdr IPv6 header defintions
* @ingroup net_gnrc_ipv6
* @{
*
* @file
* @brief IPv6 header
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*/
#ifndef NET_GNRC_IPV6_HDR_H
#define NET_GNRC_IPV6_HDR_H
#include <stdint.h>
#include "net/ipv6/hdr.h"
#include "net/gnrc/pkt.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Builds an IPv6 header for sending and adds it to the packet buffer.
*
* @details Initializes version field with 6, traffic class, flow label, and
* hop limit with 0, and next header with @ref PROTNUM_RESERVED.
*
* @param[in] payload Payload for the packet.
* @param[in] src Source address for the header. Can be NULL if not
* known or required.
* @param[in] dst Destination address for the header. Can be NULL if not
* known or required.
*
* @return The an IPv6 header in packet buffer on success.
* @return NULL on error.
*/
gnrc_pktsnip_t *gnrc_ipv6_hdr_build(gnrc_pktsnip_t *payload, const ipv6_addr_t *src,
const ipv6_addr_t *dst);
#ifdef __cplusplus
}
#endif
#endif /* NET_GNRC_IPV6_HDR_H */
/** @} */