mirror of
https://github.com/lwip-tcpip/lwip.git
synced 2024-06-30 18:09:02 +00:00
added sntp_opts.h (all options for the sntp app), added FILES to describe the include folder
This commit is contained in:
sg
parent
8dfd5e82cb
commit
22957a8082
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@ -6,6 +6,10 @@ HISTORY
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++ New features:
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2015-10-07: Simon Goldschmidt
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* added sntp client as first "supported" application layer protocol implementation
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added 'apps' folder
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2015-09-30: Dirk Ziegelmeier
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* snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
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implementation by aggregating the "base class" (struct mib_node) in all
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@ -15,6 +15,9 @@
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*/
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/*
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* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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@ -39,7 +42,7 @@
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Simon Goldschmidt (lwIP raw API part)
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* Author: Frédéric Bernon, Simon Goldschmidt
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*/
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#include "lwip/apps/sntp.h"
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@ -57,99 +60,18 @@
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#if LWIP_UDP
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/**
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* SNTP_DEBUG: Enable debugging for SNTP.
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*/
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#ifndef SNTP_DEBUG
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#define SNTP_DEBUG LWIP_DBG_OFF
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#endif
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/** SNTP server port */
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#ifndef SNTP_PORT
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#define SNTP_PORT 123
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#endif
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/** Set this to 1 to allow config of SNTP server(s) by DNS name */
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#ifndef SNTP_SERVER_DNS
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#define SNTP_SERVER_DNS 0
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#endif
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/** Handle support for more than one server via NTP_MAX_SERVERS,
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* but catch legacy style of setting SNTP_SUPPORT_MULTIPLE_SERVERS, probably outside of this file
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*/
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#ifndef SNTP_SUPPORT_MULTIPLE_SERVERS
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/* Handle support for more than one server via SNTP_MAX_SERVERS */
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#if SNTP_MAX_SERVERS > 1
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#define SNTP_SUPPORT_MULTIPLE_SERVERS 1
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#else /* NTP_MAX_SERVERS > 1 */
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#define SNTP_SUPPORT_MULTIPLE_SERVERS 0
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#endif /* NTP_MAX_SERVERS > 1 */
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#else /* SNTP_SUPPORT_MULTIPLE_SERVERS */
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/* The developer has defined SNTP_SUPPORT_MULTIPLE_SERVERS, probably from old code */
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#if SNTP_MAX_SERVERS <= 1
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#error "SNTP_MAX_SERVERS needs to be defined to the max amount of servers if SNTP_SUPPORT_MULTIPLE_SERVERS is defined"
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#endif /* SNTP_MAX_SERVERS <= 1 */
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#endif /* SNTP_SUPPORT_MULTIPLE_SERVERS */
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/** Sanity check:
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* Define this to
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* - 0 to turn off sanity checks (default; smaller code)
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* - >= 1 to check address and port of the response packet to ensure the
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* response comes from the server we sent the request to.
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* - >= 2 to check returned Originate Timestamp against Transmit Timestamp
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* sent to the server (to ensure response to older request).
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* - >= 3 @todo: discard reply if any of the LI, Stratum, or Transmit Timestamp
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* fields is 0 or the Mode field is not 4 (unicast) or 5 (broadcast).
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* - >= 4 @todo: to check that the Root Delay and Root Dispersion fields are each
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* greater than or equal to 0 and less than infinity, where infinity is
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* currently a cozy number like one second. This check avoids using a
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* server whose synchronization source has expired for a very long time.
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*/
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#ifndef SNTP_CHECK_RESPONSE
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#define SNTP_CHECK_RESPONSE 0
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#if (SNTP_UPDATE_DELAY < 15000) && !defined(SNTP_SUPPRESS_DELAY_CHECK)
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#error "SNTPv4 RFC 4330 enforces a minimum update time of 15 seconds (define SNTP_SUPPRESS_DELAY_CHECK to disable this error)!"
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#endif
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/** According to the RFC, this shall be a random delay
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* between 1 and 5 minutes (in milliseconds) to prevent load peaks.
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* This can be defined to a random generation function,
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* which must return the delay in milliseconds as u32_t.
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* Turned off by default.
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*/
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#ifndef SNTP_STARTUP_DELAY
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#define SNTP_STARTUP_DELAY 0
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#endif
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/** If you want the startup delay to be a function, define this
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* to a function (including the brackets) and define SNTP_STARTUP_DELAY to 1.
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*/
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#ifndef SNTP_STARTUP_DELAY_FUNC
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#define SNTP_STARTUP_DELAY_FUNC SNTP_STARTUP_DELAY
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#endif
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/** SNTP receive timeout - in milliseconds
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* Also used as retry timeout - this shouldn't be too low.
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* Default is 3 seconds.
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*/
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#ifndef SNTP_RECV_TIMEOUT
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#define SNTP_RECV_TIMEOUT 3000
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#endif
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/** SNTP update delay - in milliseconds
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* Default is 1 hour.
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*/
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#ifndef SNTP_UPDATE_DELAY
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#define SNTP_UPDATE_DELAY 3600000
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#endif
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#if (SNTP_UPDATE_DELAY < 15000) && !SNTP_SUPPRESS_DELAY_CHECK
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#error "SNTPv4 RFC 4330 enforces a minimum update time of 15 seconds!"
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#endif
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/** SNTP macro to change system time and/or the update the RTC clock */
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#ifndef SNTP_SET_SYSTEM_TIME
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#define SNTP_SET_SYSTEM_TIME(sec) ((void)sec)
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#endif
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/** SNTP macro to change system time including microseconds */
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/* Configure behaviour depending on microsecond or second precision */
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#ifdef SNTP_SET_SYSTEM_TIME_US
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#define SNTP_CALC_TIME_US 1
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#define SNTP_RECEIVE_TIME_SIZE 2
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@ -159,32 +81,6 @@
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#define SNTP_RECEIVE_TIME_SIZE 1
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#endif
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/** SNTP macro to get system time, used with SNTP_CHECK_RESPONSE >= 2
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* to send in request and compare in response.
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*/
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#ifndef SNTP_GET_SYSTEM_TIME
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#define SNTP_GET_SYSTEM_TIME(sec, us) do { (sec) = 0; (us) = 0; } while(0)
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#endif
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/** Default retry timeout (in milliseconds) if the response
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* received is invalid.
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* This is doubled with each retry until SNTP_RETRY_TIMEOUT_MAX is reached.
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*/
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#ifndef SNTP_RETRY_TIMEOUT
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#define SNTP_RETRY_TIMEOUT SNTP_RECV_TIMEOUT
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#endif
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/** Maximum retry timeout (in milliseconds). */
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#ifndef SNTP_RETRY_TIMEOUT_MAX
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#define SNTP_RETRY_TIMEOUT_MAX (SNTP_RETRY_TIMEOUT * 10)
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#endif
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/** Increase retry timeout with every retry sent
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* Default is on to conform to RFC.
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*/
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#ifndef SNTP_RETRY_TIMEOUT_EXP
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#define SNTP_RETRY_TIMEOUT_EXP 1
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#endif
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/* the various debug levels for this file */
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#define SNTP_DEBUG_TRACE (SNTP_DEBUG | LWIP_DBG_TRACE)
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@ -206,7 +102,7 @@
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#define SNTP_LI_ALARM_CONDITION 0x03 /* (clock not synchronized) */
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#define SNTP_VERSION_MASK 0x38
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#define SNTP_VERSION (4/* NTP Version 4*/<<3)
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#define SNTP_VERSION (4/* NTP Version 4*/<<3)
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#define SNTP_MODE_MASK 0x07
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#define SNTP_MODE_CLIENT 0x03
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@ -238,17 +134,17 @@
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#endif
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PACK_STRUCT_BEGIN
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struct sntp_msg {
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PACK_STRUCT_FLD_8(u8_t li_vn_mode);
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PACK_STRUCT_FLD_8(u8_t stratum);
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PACK_STRUCT_FLD_8(u8_t poll);
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PACK_STRUCT_FLD_8(u8_t precision);
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PACK_STRUCT_FIELD(u32_t root_delay);
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PACK_STRUCT_FIELD(u32_t root_dispersion);
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PACK_STRUCT_FIELD(u32_t reference_identifier);
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PACK_STRUCT_FIELD(u32_t reference_timestamp[2]);
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PACK_STRUCT_FIELD(u32_t originate_timestamp[2]);
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PACK_STRUCT_FIELD(u32_t receive_timestamp[2]);
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PACK_STRUCT_FIELD(u32_t transmit_timestamp[2]);
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PACK_STRUCT_FLD_8(u8_t li_vn_mode);
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PACK_STRUCT_FLD_8(u8_t stratum);
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PACK_STRUCT_FLD_8(u8_t poll);
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PACK_STRUCT_FLD_8(u8_t precision);
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PACK_STRUCT_FIELD(u32_t root_delay);
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PACK_STRUCT_FIELD(u32_t root_dispersion);
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PACK_STRUCT_FIELD(u32_t reference_identifier);
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PACK_STRUCT_FIELD(u32_t reference_timestamp[2]);
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PACK_STRUCT_FIELD(u32_t originate_timestamp[2]);
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PACK_STRUCT_FIELD(u32_t receive_timestamp[2]);
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PACK_STRUCT_FIELD(u32_t transmit_timestamp[2]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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2
src/include/lwip/apps/FILES
Normal file
2
src/include/lwip/apps/FILES
Normal file
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@ -0,0 +1,2 @@
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This directory contains application headers.
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Every application shall provide one api file APP.h and one options file APP_opts.h
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@ -1,33 +1,44 @@
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/*
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* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Frédéric Bernon, Simon Goldschmidt
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*
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*/
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#ifndef LWIP_SNTP_H
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#define LWIP_SNTP_H
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#include "lwip/opt.h"
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#include "lwip/apps/sntp_opts.h"
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#include "lwip/ip_addr.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** The maximum number of SNTP servers that can be set */
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#ifndef SNTP_MAX_SERVERS
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#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS
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#endif
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/** Set this to 1 to implement the callback function called by dhcp when
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* NTP servers are received. */
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#ifndef SNTP_GET_SERVERS_FROM_DHCP
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#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV
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#endif
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/* Set this to 1 to support DNS names (or IP address strings) to set sntp servers */
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#ifndef SNTP_SERVER_DNS
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#define SNTP_SERVER_DNS 0
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#endif
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/** One server address/name can be defined as default if SNTP_SERVER_DNS == 1:
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* #define SNTP_SERVER_ADDRESS "pool.ntp.org"
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*/
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/* SNTP operating modes: default is to poll using unicast.
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The mode has to be set before calling sntp_init(). */
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#define SNTP_OPMODE_POLL 0
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159
src/include/lwip/apps/sntp_opts.h
Normal file
159
src/include/lwip/apps/sntp_opts.h
Normal file
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@ -0,0 +1,159 @@
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/*
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* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the following disclaimer.
|
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* 2. Redistributions in binary form must reproduce the above copyright notice,
|
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* this list of conditions and the following disclaimer in the documentation
|
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
|
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* derived from this software without specific prior written permission.
|
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||||
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Frédéric Bernon, Simon Goldschmidt
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*
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*/
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#ifndef LWIP_SNTP_OPTS_H
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#define LWIP_SNTP_OPTS_H
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#include "lwip/opt.h"
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/** SNTP macro to change system time in seconds
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* Define SNTP_SET_SYSTEM_TIME_US(sec, us) to set the time in microseconds instead of this one
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* if you need the additional precision.
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*/
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#ifndef SNTP_SET_SYSTEM_TIME
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#define SNTP_SET_SYSTEM_TIME(sec) LWIP_UNUSED_ARG(sec)
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#endif
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/** The maximum number of SNTP servers that can be set */
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#ifndef SNTP_MAX_SERVERS
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#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS
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#endif
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/** Set this to 1 to implement the callback function called by dhcp when
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* NTP servers are received. */
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#ifndef SNTP_GET_SERVERS_FROM_DHCP
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#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV
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#endif
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/* Set this to 1 to support DNS names (or IP address strings) to set sntp servers */
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#ifndef SNTP_SERVER_DNS
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#define SNTP_SERVER_DNS 0
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#endif
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/** One server address/name can be defined as default if SNTP_SERVER_DNS == 1:
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* #define SNTP_SERVER_ADDRESS "pool.ntp.org"
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*/
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/**
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* SNTP_DEBUG: Enable debugging for SNTP.
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*/
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#ifndef SNTP_DEBUG
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#define SNTP_DEBUG LWIP_DBG_OFF
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#endif
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/** SNTP server port */
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#ifndef SNTP_PORT
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#define SNTP_PORT 123
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#endif
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/** Set this to 1 to allow config of SNTP server(s) by DNS name */
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#ifndef SNTP_SERVER_DNS
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#define SNTP_SERVER_DNS 0
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#endif
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/** Sanity check:
|
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* Define this to
|
||||
* - 0 to turn off sanity checks (default; smaller code)
|
||||
* - >= 1 to check address and port of the response packet to ensure the
|
||||
* response comes from the server we sent the request to.
|
||||
* - >= 2 to check returned Originate Timestamp against Transmit Timestamp
|
||||
* sent to the server (to ensure response to older request).
|
||||
* - >= 3 @todo: discard reply if any of the LI, Stratum, or Transmit Timestamp
|
||||
* fields is 0 or the Mode field is not 4 (unicast) or 5 (broadcast).
|
||||
* - >= 4 @todo: to check that the Root Delay and Root Dispersion fields are each
|
||||
* greater than or equal to 0 and less than infinity, where infinity is
|
||||
* currently a cozy number like one second. This check avoids using a
|
||||
* server whose synchronization source has expired for a very long time.
|
||||
*/
|
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#ifndef SNTP_CHECK_RESPONSE
|
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#define SNTP_CHECK_RESPONSE 0
|
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#endif
|
||||
|
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/** According to the RFC, this shall be a random delay
|
||||
* between 1 and 5 minutes (in milliseconds) to prevent load peaks.
|
||||
* This can be defined to a random generation function,
|
||||
* which must return the delay in milliseconds as u32_t.
|
||||
* Turned off by default.
|
||||
*/
|
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#ifndef SNTP_STARTUP_DELAY
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#define SNTP_STARTUP_DELAY 0
|
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#endif
|
||||
|
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/** If you want the startup delay to be a function, define this
|
||||
* to a function (including the brackets) and define SNTP_STARTUP_DELAY to 1.
|
||||
*/
|
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#ifndef SNTP_STARTUP_DELAY_FUNC
|
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#define SNTP_STARTUP_DELAY_FUNC SNTP_STARTUP_DELAY
|
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#endif
|
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|
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/** SNTP receive timeout - in milliseconds
|
||||
* Also used as retry timeout - this shouldn't be too low.
|
||||
* Default is 3 seconds.
|
||||
*/
|
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#ifndef SNTP_RECV_TIMEOUT
|
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#define SNTP_RECV_TIMEOUT 3000
|
||||
#endif
|
||||
|
||||
/** SNTP update delay - in milliseconds
|
||||
* Default is 1 hour. Must not be beolw 15 seconds by specification (i.e. 15000)
|
||||
*/
|
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#ifndef SNTP_UPDATE_DELAY
|
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#define SNTP_UPDATE_DELAY 3600000
|
||||
#endif
|
||||
|
||||
/** SNTP macro to get system time, used with SNTP_CHECK_RESPONSE >= 2
|
||||
* to send in request and compare in response.
|
||||
*/
|
||||
#ifndef SNTP_GET_SYSTEM_TIME
|
||||
#define SNTP_GET_SYSTEM_TIME(sec, us) do { (sec) = 0; (us) = 0; } while(0)
|
||||
#endif
|
||||
|
||||
/** Default retry timeout (in milliseconds) if the response
|
||||
* received is invalid.
|
||||
* This is doubled with each retry until SNTP_RETRY_TIMEOUT_MAX is reached.
|
||||
*/
|
||||
#ifndef SNTP_RETRY_TIMEOUT
|
||||
#define SNTP_RETRY_TIMEOUT SNTP_RECV_TIMEOUT
|
||||
#endif
|
||||
|
||||
/** Maximum retry timeout (in milliseconds). */
|
||||
#ifndef SNTP_RETRY_TIMEOUT_MAX
|
||||
#define SNTP_RETRY_TIMEOUT_MAX (SNTP_RETRY_TIMEOUT * 10)
|
||||
#endif
|
||||
|
||||
/** Increase retry timeout with every retry sent
|
||||
* Default is on to conform to RFC.
|
||||
*/
|
||||
#ifndef SNTP_RETRY_TIMEOUT_EXP
|
||||
#define SNTP_RETRY_TIMEOUT_EXP 1
|
||||
#endif
|
||||
|
||||
#endif /* LWIP_SNTP_OPTS_H */
|
||||
Loading…
Reference in New Issue
Block a user