mirror of
https://github.com/lwip-tcpip/lwip.git
synced 2024-10-01 04:12:07 +00:00
added sntp_opts.h (all options for the sntp app), added FILES to describe the include folder
This commit is contained in:
parent
8dfd5e82cb
commit
22957a8082
@ -6,6 +6,10 @@ HISTORY
|
|||||||
|
|
||||||
++ New features:
|
++ New features:
|
||||||
|
|
||||||
|
2015-10-07: Simon Goldschmidt
|
||||||
|
* added sntp client as first "supported" application layer protocol implementation
|
||||||
|
added 'apps' folder
|
||||||
|
|
||||||
2015-09-30: Dirk Ziegelmeier
|
2015-09-30: Dirk Ziegelmeier
|
||||||
* snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
|
* snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
|
||||||
implementation by aggregating the "base class" (struct mib_node) in all
|
implementation by aggregating the "base class" (struct mib_node) in all
|
||||||
|
@ -15,6 +15,9 @@
|
|||||||
*/
|
*/
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
* Redistribution and use in source and binary forms, with or without modification,
|
* Redistribution and use in source and binary forms, with or without modification,
|
||||||
* are permitted provided that the following conditions are met:
|
* are permitted provided that the following conditions are met:
|
||||||
*
|
*
|
||||||
@ -39,7 +42,7 @@
|
|||||||
*
|
*
|
||||||
* This file is part of the lwIP TCP/IP stack.
|
* This file is part of the lwIP TCP/IP stack.
|
||||||
*
|
*
|
||||||
* Author: Simon Goldschmidt (lwIP raw API part)
|
* Author: Frédéric Bernon, Simon Goldschmidt
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include "lwip/apps/sntp.h"
|
#include "lwip/apps/sntp.h"
|
||||||
@ -57,99 +60,18 @@
|
|||||||
|
|
||||||
#if LWIP_UDP
|
#if LWIP_UDP
|
||||||
|
|
||||||
/**
|
/* Handle support for more than one server via SNTP_MAX_SERVERS */
|
||||||
* SNTP_DEBUG: Enable debugging for SNTP.
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_DEBUG
|
|
||||||
#define SNTP_DEBUG LWIP_DBG_OFF
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** SNTP server port */
|
|
||||||
#ifndef SNTP_PORT
|
|
||||||
#define SNTP_PORT 123
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** Set this to 1 to allow config of SNTP server(s) by DNS name */
|
|
||||||
#ifndef SNTP_SERVER_DNS
|
|
||||||
#define SNTP_SERVER_DNS 0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** Handle support for more than one server via NTP_MAX_SERVERS,
|
|
||||||
* but catch legacy style of setting SNTP_SUPPORT_MULTIPLE_SERVERS, probably outside of this file
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_SUPPORT_MULTIPLE_SERVERS
|
|
||||||
#if SNTP_MAX_SERVERS > 1
|
#if SNTP_MAX_SERVERS > 1
|
||||||
#define SNTP_SUPPORT_MULTIPLE_SERVERS 1
|
#define SNTP_SUPPORT_MULTIPLE_SERVERS 1
|
||||||
#else /* NTP_MAX_SERVERS > 1 */
|
#else /* NTP_MAX_SERVERS > 1 */
|
||||||
#define SNTP_SUPPORT_MULTIPLE_SERVERS 0
|
#define SNTP_SUPPORT_MULTIPLE_SERVERS 0
|
||||||
#endif /* NTP_MAX_SERVERS > 1 */
|
#endif /* NTP_MAX_SERVERS > 1 */
|
||||||
#else /* SNTP_SUPPORT_MULTIPLE_SERVERS */
|
|
||||||
/* The developer has defined SNTP_SUPPORT_MULTIPLE_SERVERS, probably from old code */
|
|
||||||
#if SNTP_MAX_SERVERS <= 1
|
|
||||||
#error "SNTP_MAX_SERVERS needs to be defined to the max amount of servers if SNTP_SUPPORT_MULTIPLE_SERVERS is defined"
|
|
||||||
#endif /* SNTP_MAX_SERVERS <= 1 */
|
|
||||||
#endif /* SNTP_SUPPORT_MULTIPLE_SERVERS */
|
|
||||||
|
|
||||||
|
#if (SNTP_UPDATE_DELAY < 15000) && !defined(SNTP_SUPPRESS_DELAY_CHECK)
|
||||||
/** Sanity check:
|
#error "SNTPv4 RFC 4330 enforces a minimum update time of 15 seconds (define SNTP_SUPPRESS_DELAY_CHECK to disable this error)!"
|
||||||
* 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.
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_CHECK_RESPONSE
|
|
||||||
#define SNTP_CHECK_RESPONSE 0
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/** According to the RFC, this shall be a random delay
|
/* Configure behaviour depending on microsecond or second precision */
|
||||||
* 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.
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_STARTUP_DELAY
|
|
||||||
#define SNTP_STARTUP_DELAY 0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** 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.
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_STARTUP_DELAY_FUNC
|
|
||||||
#define SNTP_STARTUP_DELAY_FUNC SNTP_STARTUP_DELAY
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** SNTP receive timeout - in milliseconds
|
|
||||||
* Also used as retry timeout - this shouldn't be too low.
|
|
||||||
* Default is 3 seconds.
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_RECV_TIMEOUT
|
|
||||||
#define SNTP_RECV_TIMEOUT 3000
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** SNTP update delay - in milliseconds
|
|
||||||
* Default is 1 hour.
|
|
||||||
*/
|
|
||||||
#ifndef SNTP_UPDATE_DELAY
|
|
||||||
#define SNTP_UPDATE_DELAY 3600000
|
|
||||||
#endif
|
|
||||||
#if (SNTP_UPDATE_DELAY < 15000) && !SNTP_SUPPRESS_DELAY_CHECK
|
|
||||||
#error "SNTPv4 RFC 4330 enforces a minimum update time of 15 seconds!"
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** SNTP macro to change system time and/or the update the RTC clock */
|
|
||||||
#ifndef SNTP_SET_SYSTEM_TIME
|
|
||||||
#define SNTP_SET_SYSTEM_TIME(sec) ((void)sec)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** SNTP macro to change system time including microseconds */
|
|
||||||
#ifdef SNTP_SET_SYSTEM_TIME_US
|
#ifdef SNTP_SET_SYSTEM_TIME_US
|
||||||
#define SNTP_CALC_TIME_US 1
|
#define SNTP_CALC_TIME_US 1
|
||||||
#define SNTP_RECEIVE_TIME_SIZE 2
|
#define SNTP_RECEIVE_TIME_SIZE 2
|
||||||
@ -159,32 +81,6 @@
|
|||||||
#define SNTP_RECEIVE_TIME_SIZE 1
|
#define SNTP_RECEIVE_TIME_SIZE 1
|
||||||
#endif
|
#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
|
|
||||||
|
|
||||||
/* the various debug levels for this file */
|
/* the various debug levels for this file */
|
||||||
#define SNTP_DEBUG_TRACE (SNTP_DEBUG | LWIP_DBG_TRACE)
|
#define SNTP_DEBUG_TRACE (SNTP_DEBUG | LWIP_DBG_TRACE)
|
||||||
@ -206,7 +102,7 @@
|
|||||||
#define SNTP_LI_ALARM_CONDITION 0x03 /* (clock not synchronized) */
|
#define SNTP_LI_ALARM_CONDITION 0x03 /* (clock not synchronized) */
|
||||||
|
|
||||||
#define SNTP_VERSION_MASK 0x38
|
#define SNTP_VERSION_MASK 0x38
|
||||||
#define SNTP_VERSION (4/* NTP Version 4*/<<3)
|
#define SNTP_VERSION (4/* NTP Version 4*/<<3)
|
||||||
|
|
||||||
#define SNTP_MODE_MASK 0x07
|
#define SNTP_MODE_MASK 0x07
|
||||||
#define SNTP_MODE_CLIENT 0x03
|
#define SNTP_MODE_CLIENT 0x03
|
||||||
@ -238,17 +134,17 @@
|
|||||||
#endif
|
#endif
|
||||||
PACK_STRUCT_BEGIN
|
PACK_STRUCT_BEGIN
|
||||||
struct sntp_msg {
|
struct sntp_msg {
|
||||||
PACK_STRUCT_FLD_8(u8_t li_vn_mode);
|
PACK_STRUCT_FLD_8(u8_t li_vn_mode);
|
||||||
PACK_STRUCT_FLD_8(u8_t stratum);
|
PACK_STRUCT_FLD_8(u8_t stratum);
|
||||||
PACK_STRUCT_FLD_8(u8_t poll);
|
PACK_STRUCT_FLD_8(u8_t poll);
|
||||||
PACK_STRUCT_FLD_8(u8_t precision);
|
PACK_STRUCT_FLD_8(u8_t precision);
|
||||||
PACK_STRUCT_FIELD(u32_t root_delay);
|
PACK_STRUCT_FIELD(u32_t root_delay);
|
||||||
PACK_STRUCT_FIELD(u32_t root_dispersion);
|
PACK_STRUCT_FIELD(u32_t root_dispersion);
|
||||||
PACK_STRUCT_FIELD(u32_t reference_identifier);
|
PACK_STRUCT_FIELD(u32_t reference_identifier);
|
||||||
PACK_STRUCT_FIELD(u32_t reference_timestamp[2]);
|
PACK_STRUCT_FIELD(u32_t reference_timestamp[2]);
|
||||||
PACK_STRUCT_FIELD(u32_t originate_timestamp[2]);
|
PACK_STRUCT_FIELD(u32_t originate_timestamp[2]);
|
||||||
PACK_STRUCT_FIELD(u32_t receive_timestamp[2]);
|
PACK_STRUCT_FIELD(u32_t receive_timestamp[2]);
|
||||||
PACK_STRUCT_FIELD(u32_t transmit_timestamp[2]);
|
PACK_STRUCT_FIELD(u32_t transmit_timestamp[2]);
|
||||||
} PACK_STRUCT_STRUCT;
|
} PACK_STRUCT_STRUCT;
|
||||||
PACK_STRUCT_END
|
PACK_STRUCT_END
|
||||||
#ifdef PACK_STRUCT_USE_INCLUDES
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||||||
|
2
src/include/lwip/apps/FILES
Normal file
2
src/include/lwip/apps/FILES
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
This directory contains application headers.
|
||||||
|
Every application shall provide one api file APP.h and one options file APP_opts.h
|
@ -1,33 +1,44 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
* are permitted provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
|
* and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the author may not be used to endorse or promote products
|
||||||
|
* derived from this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* 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
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* This file is part of the lwIP TCP/IP stack.
|
||||||
|
*
|
||||||
|
* Author: Frédéric Bernon, Simon Goldschmidt
|
||||||
|
*
|
||||||
|
*/
|
||||||
#ifndef LWIP_SNTP_H
|
#ifndef LWIP_SNTP_H
|
||||||
#define LWIP_SNTP_H
|
#define LWIP_SNTP_H
|
||||||
|
|
||||||
#include "lwip/opt.h"
|
#include "lwip/apps/sntp_opts.h"
|
||||||
#include "lwip/ip_addr.h"
|
#include "lwip/ip_addr.h"
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
extern "C" {
|
extern "C" {
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/** The maximum number of SNTP servers that can be set */
|
|
||||||
#ifndef SNTP_MAX_SERVERS
|
|
||||||
#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** Set this to 1 to implement the callback function called by dhcp when
|
|
||||||
* NTP servers are received. */
|
|
||||||
#ifndef SNTP_GET_SERVERS_FROM_DHCP
|
|
||||||
#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* Set this to 1 to support DNS names (or IP address strings) to set sntp servers */
|
|
||||||
#ifndef SNTP_SERVER_DNS
|
|
||||||
#define SNTP_SERVER_DNS 0
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/** One server address/name can be defined as default if SNTP_SERVER_DNS == 1:
|
|
||||||
* #define SNTP_SERVER_ADDRESS "pool.ntp.org"
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* SNTP operating modes: default is to poll using unicast.
|
/* SNTP operating modes: default is to poll using unicast.
|
||||||
The mode has to be set before calling sntp_init(). */
|
The mode has to be set before calling sntp_init(). */
|
||||||
#define SNTP_OPMODE_POLL 0
|
#define SNTP_OPMODE_POLL 0
|
||||||
|
159
src/include/lwip/apps/sntp_opts.h
Normal file
159
src/include/lwip/apps/sntp_opts.h
Normal file
@ -0,0 +1,159 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
* are permitted provided that the following conditions are met:
|
||||||
|
*
|
||||||
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
|
* and/or other materials provided with the distribution.
|
||||||
|
* 3. The name of the author may not be used to endorse or promote products
|
||||||
|
* derived from this software without specific prior written permission.
|
||||||
|
*
|
||||||
|
* 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
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* This file is part of the lwIP TCP/IP stack.
|
||||||
|
*
|
||||||
|
* Author: Frédéric Bernon, Simon Goldschmidt
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
#ifndef LWIP_SNTP_OPTS_H
|
||||||
|
#define LWIP_SNTP_OPTS_H
|
||||||
|
|
||||||
|
#include "lwip/opt.h"
|
||||||
|
|
||||||
|
/** SNTP macro to change system time in seconds
|
||||||
|
* Define SNTP_SET_SYSTEM_TIME_US(sec, us) to set the time in microseconds instead of this one
|
||||||
|
* if you need the additional precision.
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_SET_SYSTEM_TIME
|
||||||
|
#define SNTP_SET_SYSTEM_TIME(sec) LWIP_UNUSED_ARG(sec)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** The maximum number of SNTP servers that can be set */
|
||||||
|
#ifndef SNTP_MAX_SERVERS
|
||||||
|
#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** Set this to 1 to implement the callback function called by dhcp when
|
||||||
|
* NTP servers are received. */
|
||||||
|
#ifndef SNTP_GET_SERVERS_FROM_DHCP
|
||||||
|
#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Set this to 1 to support DNS names (or IP address strings) to set sntp servers */
|
||||||
|
#ifndef SNTP_SERVER_DNS
|
||||||
|
#define SNTP_SERVER_DNS 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** One server address/name can be defined as default if SNTP_SERVER_DNS == 1:
|
||||||
|
* #define SNTP_SERVER_ADDRESS "pool.ntp.org"
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* SNTP_DEBUG: Enable debugging for SNTP.
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_DEBUG
|
||||||
|
#define SNTP_DEBUG LWIP_DBG_OFF
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** SNTP server port */
|
||||||
|
#ifndef SNTP_PORT
|
||||||
|
#define SNTP_PORT 123
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** Set this to 1 to allow config of SNTP server(s) by DNS name */
|
||||||
|
#ifndef SNTP_SERVER_DNS
|
||||||
|
#define SNTP_SERVER_DNS 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** Sanity check:
|
||||||
|
* 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.
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_CHECK_RESPONSE
|
||||||
|
#define SNTP_CHECK_RESPONSE 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** 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.
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_STARTUP_DELAY
|
||||||
|
#define SNTP_STARTUP_DELAY 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** 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.
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_STARTUP_DELAY_FUNC
|
||||||
|
#define SNTP_STARTUP_DELAY_FUNC SNTP_STARTUP_DELAY
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** SNTP receive timeout - in milliseconds
|
||||||
|
* Also used as retry timeout - this shouldn't be too low.
|
||||||
|
* Default is 3 seconds.
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_RECV_TIMEOUT
|
||||||
|
#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)
|
||||||
|
*/
|
||||||
|
#ifndef SNTP_UPDATE_DELAY
|
||||||
|
#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