mirror of
https://github.com/zephyrproject-rtos/zephyr
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6cf1da486d
Allow user to disable native IP stack and use offloaded IP stack instead. It is also possible to enable both at the same time if needed. Fixes #18105 Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
137 lines
3.1 KiB
C
137 lines
3.1 KiB
C
/** @file
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@brief UDP data handler
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This is not to be included by the application and is only used by
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core IP stack.
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*/
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/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __UDP_INTERNAL_H
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#define __UDP_INTERNAL_H
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#include <zephyr/types.h>
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#include <net/net_core.h>
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#include <net/net_ip.h>
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#include <net/net_pkt.h>
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#include <net/net_context.h>
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#include "connection.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Create UDP packet into net_pkt
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*
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* Note: pkt's cursor should be set a the right position.
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* (i.e. after IP header)
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*
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* @param pkt Network packet
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* @param src_port Destination port in network byte order.
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* @param dst_port Destination port in network byte order.
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*
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* @return 0 on success, negative errno otherwise.
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*/
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#if defined(CONFIG_NET_NATIVE_UDP)
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int net_udp_create(struct net_pkt *pkt, u16_t src_port, u16_t dst_port);
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#else
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static inline int net_udp_create(struct net_pkt *pkt,
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u16_t src_port, u16_t dst_port)
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{
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ARG_UNUSED(pkt);
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ARG_UNUSED(src_port);
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ARG_UNUSED(dst_port);
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return 0;
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}
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#endif
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/**
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* @brief Finalize UDP packet
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*
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* Note: calculates final length and setting up the checksum.
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*
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* @param pkt Network packet
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*
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* @return 0 on success, negative errno otherwise.
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*/
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#if defined(CONFIG_NET_NATIVE_UDP)
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int net_udp_finalize(struct net_pkt *pkt);
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#else
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static inline int net_udp_finalize(struct net_pkt *pkt)
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{
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ARG_UNUSED(pkt);
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return 0;
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}
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#endif
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/**
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* @brief Get pointer to UDP header in net_pkt
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*
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* @param pkt Network packet
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* @param udp_access Helper variable for accessing UDP header
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*
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* @return UDP header on success, NULL on error
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*/
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#if defined(CONFIG_NET_NATIVE_UDP)
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struct net_udp_hdr *net_udp_input(struct net_pkt *pkt,
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struct net_pkt_data_access *udp_access);
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#else
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static inline
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struct net_udp_hdr *net_udp_input(struct net_pkt *pkt,
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struct net_pkt_data_access *udp_access)
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{
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ARG_UNUSED(pkt);
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ARG_UNUSED(udp_access);
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return NULL;
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}
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#endif
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/**
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* @brief Register a callback to be called when UDP packet
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* is received corresponding to received packet.
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*
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* @param family Protocol family
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* @param remote_addr Remote address of the connection end point.
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* @param local_addr Local address of the connection end point.
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* @param remote_port Remote port of the connection end point.
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* @param local_port Local port of the connection end point.
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* @param cb Callback to be called
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* @param user_data User data supplied by caller.
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* @param handle UDP handle that can be used when unregistering
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*
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* @return Return 0 if the registration succeed, <0 otherwise.
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*/
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int net_udp_register(u8_t family,
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const struct sockaddr *remote_addr,
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const struct sockaddr *local_addr,
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u16_t remote_port,
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u16_t local_port,
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net_conn_cb_t cb,
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void *user_data,
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struct net_conn_handle **handle);
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/**
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* @brief Unregister UDP handler.
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*
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* @param handle Handle from registering.
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*
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* @return Return 0 if the unregistration succeed, <0 otherwise.
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*/
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int net_udp_unregister(struct net_conn_handle *handle);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __UDP_INTERNAL_H */
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