ac74d8b652
Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
133 lines
3.1 KiB
C
133 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.
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*/
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/*
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* Copyright (c) 2016 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_H
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#define __UDP_H
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#include <stdint.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/nbuf.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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#if defined(CONFIG_NET_UDP)
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/**
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* @brief Append UDP packet into net_buf
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*
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* @param buf Network buffer
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* @param src_port Source port in host byte order.
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* @param dst_port Destination port in host byte order.
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*
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* @return Return network buffer that contains the UDP packet.
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*/
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static inline struct net_buf *net_udp_append_raw(struct net_buf *buf,
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uint16_t src_port,
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uint16_t dst_port)
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{
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NET_UDP_BUF(buf)->src_port = htons(src_port);
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NET_UDP_BUF(buf)->dst_port = htons(dst_port);
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net_buf_add(buf->frags, sizeof(struct net_udp_hdr));
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NET_UDP_BUF(buf)->len = htons(net_buf_frags_len(buf) -
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net_nbuf_ip_hdr_len(buf));
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net_nbuf_set_appdata(buf, net_nbuf_udp_data(buf) +
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sizeof(struct net_udp_hdr));
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return buf;
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}
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/**
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* @brief Append UDP packet into net_buf
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*
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* @param context Network context for a connection
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* @param buf Network buffer
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* @param port Destination port in host byte order.
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*
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* @return Return network buffer that contains the UDP packet.
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*/
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static inline struct net_buf *net_udp_append(struct net_context *context,
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struct net_buf *buf,
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uint16_t port)
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{
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return net_udp_append_raw(buf,
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ntohs(net_sin((struct sockaddr *)
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&context->local)->sin_port),
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port);
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}
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#else
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#define net_udp_append_raw(buf, src_port, dst_port) (buf)
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#define net_udp_append(context, buf, port) (buf)
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#endif /* CONFIG_NET_UDP */
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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 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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static inline int net_udp_register(const struct sockaddr *remote_addr,
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const struct sockaddr *local_addr,
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uint16_t remote_port,
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uint16_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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return net_conn_register(IPPROTO_UDP, remote_addr, local_addr,
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remote_port, local_port, cb, user_data,
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handle);
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}
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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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static inline int net_udp_unregister(struct net_conn_handle *handle)
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{
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return net_conn_unregister(handle);
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}
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#if defined(CONFIG_NET_UDP)
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static inline void net_udp_init(void)
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{
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return;
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}
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#else
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#define net_udp_init(...)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* __UDP_H */
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