59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/*
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* Copyright (c) 2017 Linaro Limited
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* Copyright (c) 2019 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 ZEPHYR_INCLUDE_NET_SNTP_H_
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#define ZEPHYR_INCLUDE_NET_SNTP_H_
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#include <net/socket.h>
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/** SNTP context */
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struct sntp_ctx {
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struct {
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struct pollfd fds[1];
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int nfds;
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int fd;
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} sock;
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/** Timestamp when the request was sent from client to server.
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* This is used to check if the originated timestamp in the server
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* reply matches the one in client request.
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*/
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u32_t expected_orig_ts;
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};
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/**
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* @brief Initialize SNTP context
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*
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* @param ctx Address of sntp context.
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* @param addr IP address of NTP/SNTP server.
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* @param addr_len IP address length of NTP/SNTP server.
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*
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* @return 0 if ok, <0 if error.
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*/
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int sntp_init(struct sntp_ctx *ctx, struct sockaddr *addr,
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socklen_t addr_len);
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/**
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* @brief Send SNTP request
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*
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* @param ctx Address of sntp context.
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* @param timeout Timeout of waiting for sntp response (in milliseconds).
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* @param epoch_time Seconds since 1 January 1970.
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*
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* @return 0 if ok, <0 if error.
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*/
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int sntp_request(struct sntp_ctx *ctx, u32_t timeout, u64_t *epoch_time);
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/**
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* @brief Release SNTP context
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*
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* @param ctx Address of sntp context.
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*/
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void sntp_close(struct sntp_ctx *ctx);
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#endif
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