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FreeRTOS-Plus-TCP/source/include/FreeRTOSIPConfigDefaults.h
Tony Josi b4a928b354 Fix build issue with network interface of STM32F4 (#778) 
* fix build errors with STM32F4 netwrok interface

* moves the default config for ipconfigUSE_DHCPv6 outside of ipconfigUSE_TCP check

* Uncrustify: triggered by comment.

---------

Co-authored-by: GitHub Action <action@github.com>
2023-03-13 15:42:03 +05:30

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/*
* FreeRTOS+TCP <DEVELOPMENT BRANCH>
* Copyright (C) 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://aws.amazon.com/freertos
* http://www.FreeRTOS.org
*/
#ifndef FREERTOS_DEFAULT_IP_CONFIG_H
#define FREERTOS_DEFAULT_IP_CONFIG_H
/* This file must be included only after the configuration files FreeRTOSConfig.h and
* FreeRTOSIPConfig.h have been included already.
* Mentioned header files are private to the project, whereas this header
* file is part of FreeRTOS+TCP.
*
* The complete documentation of the configuration parameters can be found here:
*
* https://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html
*
*/
/* The error numbers defined in this file will be moved to the core FreeRTOS
* code in future versions of FreeRTOS - at which time the following header file
* will be removed. */
#include "FreeRTOS_errno_TCP.h"
/* This file provides default values for configuration options that are missing
* from the FreeRTOSIPConfig.h configuration header file. */
/* These macros are used to define away static keyword for CBMC proofs */
#ifndef _static
#define _static static
#endif
/* Through time some macro names have changed. This always
* happened for a good reason: clarity or consistency.
* Here below there are some ifdef's that will issue an error if any of the
* deprecated macros is still defined. */
/* Ensure defined configuration constants are using the most up to date naming. */
#ifdef tcpconfigIP_TIME_TO_LIVE
#error now called: ipconfigTCP_TIME_TO_LIVE
#endif
#ifdef updconfigIP_TIME_TO_LIVE
#error now called: ipconfigUDP_TIME_TO_LIVE
#endif
#ifdef ipFILLER_SIZE
#error now called: ipconfigPACKET_FILLER_SIZE
#endif
#ifndef ipconfigENDPOINT_DNS_ADDRESS_COUNT
#define ipconfigENDPOINT_DNS_ADDRESS_COUNT 2U
#endif
#ifdef dnsMAX_REQUEST_ATTEMPTS
#error now called: ipconfigDNS_REQUEST_ATTEMPTS
#endif
#ifdef ipconfigUDP_TASK_PRIORITY
#error now called: ipconfigIP_TASK_PRIORITY
#endif
#ifdef ipconfigUDP_TASK_STACK_SIZE_WORDS
#error now called: ipconfigIP_TASK_STACK_SIZE_WORDS
#endif
#ifdef ipconfigDRIVER_INCLUDED_RX_IP_FILTERING
#error now called: ipconfigETHERNET_DRIVER_FILTERS_PACKETS
#endif
#ifdef ipconfigMAX_SEND_BLOCK_TIME_TICKS
#error now called: ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS
#endif
#ifdef ipconfigUSE_RECEIVE_CONNECT_CALLBACKS
#error now called: ipconfigUSE_CALLBACKS
#endif
#ifdef ipconfigNUM_NETWORK_BUFFERS
#error now called: ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS
#endif
#ifdef ipconfigTCP_HANG_PROT
#error now called: ipconfigTCP_HANG_PROTECTION
#endif
#ifdef ipconfigTCP_HANG_PROT_TIME
#error now called: ipconfigTCP_HANG_PROTECTION_TIME
#endif
#ifdef FreeRTOS_lprintf
#error now called: FreeRTOS_debug_printf
#endif
#ifdef ipconfigBUFFER_ALLOC_FIXED_SIZE
#error ipconfigBUFFER_ALLOC_FIXED_SIZE was dropped and replaced by a const value, declared in BufferAllocation[12].c
#endif
#ifdef ipconfigNIC_SEND_PASSES_DMA
#error now called: ipconfigZERO_COPY_TX_DRIVER
#endif
#ifdef HAS_TX_CRC_OFFLOADING
#error now called: ipconfigHAS_TX_CRC_OFFLOADING
#endif
#ifdef HAS_RX_CRC_OFFLOADING
#error now called: ipconfigHAS_RX_CRC_OFFLOADING
#endif
#ifdef ipconfigTCP_RX_BUF_LEN
#error ipconfigTCP_RX_BUF_LEN is now called ipconfigTCP_RX_BUFFER_LENGTH
#endif
#ifdef ipconfigTCP_TX_BUF_LEN
#error ipconfigTCP_TX_BUF_LEN is now called ipconfigTCP_TX_BUFFER_LENGTH
#endif
#ifdef ipconfigDHCP_USES_USER_HOOK
#error ipconfigDHCP_USES_USER_HOOK and its associated callback have been superseded - see http: /*www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html#ipconfigUSE_DHCP_HOOK */
#endif
/* The macro 'ipconfigBYTE_ORDER' must be defined as either 'pdFREERTOS_LITTLE_ENDIAN'
* or as 'pdFREERTOS_BIG_ENDIAN'. See also 'projdefs.h'.
*/
#ifndef ipconfigBYTE_ORDER
#error The macro 'ipconfigBYTE_ORDER' must be defined at this point
#endif
/* So far the warnings about deprecated configuration macros. */
/*-----------------------------------------------------------*/
/* The IP stack executes it its own task (although any application task can make
* use of its services through the published sockets API). ipconfigUDP_TASK_PRIORITY
* sets the priority of the task that executes the IP stack. The priority is a
* standard FreeRTOS task priority so can take any value from 0 (the lowest
* priority) to (configMAX_PRIORITIES - 1) (the highest priority).
* configMAX_PRIORITIES is a standard FreeRTOS configuration parameter defined in
* FreeRTOSConfig.h, not FreeRTOSIPConfig.h. Consideration needs to be given as to
* the priority assigned to the task executing the IP stack relative to the
* priority assigned to tasks that use the IP stack. */
#ifndef ipconfigIP_TASK_PRIORITY
#define ipconfigIP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
#endif
/* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
* task. This setting is less important when the FreeRTOS Win32 simulator is used
* as the Win32 simulator only stores a fixed amount of information on the task
* stack. FreeRTOS includes optional stack overflow detection, see:
* http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
#ifndef ipconfigIP_TASK_STACK_SIZE_WORDS
#define ipconfigIP_TASK_STACK_SIZE_WORDS ( configMINIMAL_STACK_SIZE * 5U )
#endif
/* Include all API's and code that is needed for the TCP protocol.
* When defined as zero, the application is UDP-only. */
#ifndef ipconfigUSE_TCP
#define ipconfigUSE_TCP ( 1 )
#endif
#ifndef ipconfigCOMPATIBLE_WITH_SINGLE
#define ipconfigCOMPATIBLE_WITH_SINGLE ( 0 )
#endif
#ifndef ipconfigMULTI_INTERFACE
#define ipconfigMULTI_INTERFACE ( 1 )
#endif
/* Disable IPv6 by default. */
#ifndef ipconfigUSE_DHCPv6
#define ipconfigUSE_DHCPv6 ( 0 )
#endif
#if ( ipconfigUSE_TCP != 0 )
/* 'ipconfigUSE_TCP_WIN' enables support for TCP sliding windows. When
* defined as zero, each TCP packet must be acknowledged individually.
* That will be slower, but it will result less code. */
#ifndef ipconfigUSE_TCP_WIN
#define ipconfigUSE_TCP_WIN ( 1 )
#endif
/* The total number of outstanding TCP segments, either outgoing or incoming.
* This only applies when 'ipconfigUSE_TCP_WIN' is enabled. */
#ifndef ipconfigTCP_WIN_SEG_COUNT
#define ipconfigTCP_WIN_SEG_COUNT ( 256 )
#endif
/* When non-zero, TCP will not send RST packets in reply to
* TCP packets which are unknown, or out-of-order.
* This is an option used for testing. It is recommended to
* define it as '0'. */
#ifndef ipconfigIGNORE_UNKNOWN_PACKETS
#define ipconfigIGNORE_UNKNOWN_PACKETS ( 0 )
#endif
#endif /* if ipconfigUSE_TCP */
/*
* For debugging/logging: check if the port number is used for e.g. telnet.
* Some events will not be logged for telnet connections
* because it would produce logging about the transmission of the logging...
* This macro will only be used if FreeRTOS_debug_printf() is defined for logging.
* Note that the parameter 'xPort' is already converted to host-endian.
*/
#ifndef ipconfigTCP_MAY_LOG_PORT
#define ipconfigTCP_MAY_LOG_PORT( xPort ) ( ( xPort ) != 23U )
#endif
/* Include all API's and code that is needed for the IPv4 protocol.
* When defined as zero, the application should uses IPv6. */
#ifndef ipconfigUSE_IPv4
#define ipconfigUSE_IPv4 ( 1 )
#endif
/* Include all API's and code that is needed for the IPv6 protocol.
* When defined as zero, the application should uses IPv4. */
#ifndef ipconfigUSE_IPv6
#define ipconfigUSE_IPv6 ( 1 )
#endif
#if ( ipconfigUSE_IPv4 != 1 ) || ( ipconfigUSE_IPv6 != 1 )
#error "Build separation for both IPv4 and IPv6 is work in progress. \
Please enable both ipconfigUSE_IPv4 and ipconfigUSE_IPv6 flags."
#endif
/*
* If defined this macro enables the APIs that are backward compatible
* with single end point IPv4 version of the FreeRTOS+TCP library.
*/
#ifndef ipconfigIPv4_BACKWARD_COMPATIBLE
#define ipconfigIPv4_BACKWARD_COMPATIBLE 0
#endif
/* Determine the number of clock ticks that the API's FreeRTOS_recv() and
* FreeRTOS_recvfrom() must wait for incoming data. */
#ifndef ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME
#define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME portMAX_DELAY
#endif
/* Determine the number of clock ticks that FreeRTOS_send() must wait
* for space in the transmission buffer.
* For FreeRTOS_sendto(), it limits how long the application
* should wait for a network buffer to become available.
*/
#ifndef ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME
#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME portMAX_DELAY
#endif
/* When sending a UDP packet, a network buffer must be obtained. This macro
* will limit the maximum waiting time that is configured with e.g.
* ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME, or when setting the socket option
* FREERTOS_SO_SNDTIMEO.
* It serves as a protection against a possible dead-lock; a task waiting
* for itself to release a network buffer.
*/
#ifndef ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS
#define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS ( pdMS_TO_TICKS( 20U ) )
#endif
/*
* FreeRTOS debug logging routines.
* The macro will be called with a printf() format as a parameter. Users
* can define their own logging routine as:
*
* extern void my_printf( const char * pcFormat, ... );
* #define FreeRTOS_debug_printf( MSG ) my_printf MSG
*
* The FreeRTOS_debug_printf() must be thread-safe but does not have to be
* interrupt-safe.
*/
#ifdef ipconfigHAS_DEBUG_PRINTF
#if ( ipconfigHAS_DEBUG_PRINTF == 0 )
#ifdef FreeRTOS_debug_printf
#error Do not define FreeRTOS_debug_print if ipconfigHAS_DEBUG_PRINTF is set to 0
#endif /* ifdef FreeRTOS_debug_printf */
#endif /* ( ipconfigHAS_DEBUG_PRINTF == 0 ) */
#endif /* ifdef ipconfigHAS_DEBUG_PRINTF */
#ifndef FreeRTOS_debug_printf
#define FreeRTOS_debug_printf( MSG ) do {} while( ipFALSE_BOOL )
/* MISRA Ref 20.5.1 [Use of undef] */
/* More details at: https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/blob/main/MISRA.md#rule-2051 */
/* coverity[misra_c_2012_rule_20_5_violation] */
#undef ipconfigHAS_DEBUG_PRINTF
#define ipconfigHAS_DEBUG_PRINTF 0
#endif
/*
* FreeRTOS general logging routine (proposal)
* Used in some utility functions such as FreeRTOS_netstat() and FreeRTOS_PrintARPCache()
*
* extern void my_printf( const char * pcFormat, ... );
* #define FreeRTOS_printf( MSG ) my_printf MSG
*
* The FreeRTOS_printf() must be thread-safe but does not have to be interrupt-safe
*/
#ifdef ipconfigHAS_PRINTF
#if ( ipconfigHAS_PRINTF == 0 )
#ifdef FreeRTOS_printf
#error Do not define FreeRTOS_print if ipconfigHAS_PRINTF is set to 0
#endif /* ifdef FreeRTOS_debug_printf */
#endif /* ( ipconfigHAS_PRINTF == 0 ) */
#endif /* ifdef ipconfigHAS_PRINTF */
#ifndef FreeRTOS_printf
#define FreeRTOS_printf( MSG ) do {} while( ipFALSE_BOOL )
/* MISRA Ref 20.5.1 [Use of undef] */
/* More details at: https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/blob/main/MISRA.md#rule-2051 */
/* coverity[misra_c_2012_rule_20_5_violation] */
#undef ipconfigHAS_PRINTF
#define ipconfigHAS_PRINTF 0
#endif
/*
* In cases where a lot of logging is produced, FreeRTOS_flush_logging( )
* will be called to give the logging module a chance to flush the data.
*/
#ifndef FreeRTOS_flush_logging
#define FreeRTOS_flush_logging() do {} while( ipFALSE_BOOL )
#endif
/* Malloc functions. Within most applications of FreeRTOS, the couple
* pvPortMalloc()/vPortFree() will be used.
* If there are different types of RAM, the user may decide to use a different
* memory allocator for different purposes:
* MallocLarge is used to allocate large TCP buffers (for Rx/Tx)
* MallocSocket is used to allocate the space for the sockets
*/
#ifndef pvPortMallocLarge
#define pvPortMallocLarge( x ) pvPortMalloc( x )
#endif
#ifndef vPortFreeLarge
#define vPortFreeLarge( ptr ) vPortFree( ptr )
#endif
#ifndef pvPortMallocSocket
#define pvPortMallocSocket( x ) pvPortMalloc( x )
#endif
#ifndef vPortFreeSocket
#define vPortFreeSocket( ptr ) vPortFree( ptr )
#endif
/*
* At several places within the library, random numbers are needed:
* - DHCP: For creating a DHCP transaction number
* - TCP: Set the Initial Sequence Number: this is the value of the first outgoing
* sequence number being used when connecting to a peer.
* Having a well randomized ISN is important to avoid spoofing
* - UDP/TCP: for setting the first port number to be used, in case a socket
* uses a 'random' or anonymous port number
*
* The function is now **deprecated**, in stead the following function must be provided:
* BaseType_t xApplicationGetRandomNumber( uint32_t *pulValue );
* It will return pdPASS if the random number could be created, otherwise pdFAIL.
*/
#ifndef ipconfigRAND32
#define ipconfigRAND32() rand()
#endif
/* 'ipconfigUSE_NETWORK_EVENT_HOOK' indicates if an application hook is available
* called 'vApplicationIPNetworkEventHook()' ( if ipconfigIPv4_BACKWARD_COMPATIBLE enabled,
* otherwise vApplicationIPNetworkEventHook_Multi() ).
* This function will be called when
* the network goes up and when it goes down. See also FREERTOS_IP.h for further
* explanation. */
#ifndef ipconfigUSE_NETWORK_EVENT_HOOK
#define ipconfigUSE_NETWORK_EVENT_HOOK 0
#endif
/* Define the number of entries in the ARP cache table. */
#ifndef ipconfigARP_CACHE_ENTRIES
#define ipconfigARP_CACHE_ENTRIES 10
#endif
/* The number of times an ARP request is sent when looking
* up an IP-address.
* The name should have been 'max transmissions', and not
* 'max re-transmissions'. */
#ifndef ipconfigMAX_ARP_RETRANSMISSIONS
#define ipconfigMAX_ARP_RETRANSMISSIONS ( 5U )
#endif
/* The maximum age of an entry in the ARP cache table can be
* calculated as 'ipARP_TIMER_PERIOD_MS' x 'ipconfigMAX_ARP_AGE'.
* The macro 'ipARP_TIMER_PERIOD_MS' is local to FreeRTOSIP.c
* but it can be overwritten from FreeRTOSIPConfig.h
* The default is 10000 x 150 = 1500000 ms or 1500 seconds
*/
#ifndef ipconfigMAX_ARP_AGE
#define ipconfigMAX_ARP_AGE 150U
#endif
/* 'ipconfigUSE_ARP_REVERSED_LOOKUP' when non-zero, the function
* eARPGetCacheEntryByMac() will be included in the code.
*/
#ifndef ipconfigUSE_ARP_REVERSED_LOOKUP
#define ipconfigUSE_ARP_REVERSED_LOOKUP 0
#endif
/* 'ipconfigUSE_ARP_REMOVE_ENTRY' when non-zero, the function
* ulARPRemoveCacheEntryByMac() will be included in the code.
*/
#ifndef ipconfigUSE_ARP_REMOVE_ENTRY
#define ipconfigUSE_ARP_REMOVE_ENTRY 0
#endif
/* Normally, the ARP table will only store IP-addresses that are located
* in the local subnet.
* When enabled, the option 'ipconfigARP_STORES_REMOTE_ADDRESSES' will allow
* that remote IP-addresses will also be stored, along with the MAC-address of
* the gateway.
*/
#ifndef ipconfigARP_STORES_REMOTE_ADDRESSES
#define ipconfigARP_STORES_REMOTE_ADDRESSES 0
#endif
/* 'ipconfigINCLUDE_FULL_INET_ADDR' used to determine if
* the function 'FreeRTOS_inet_addr()' is included.
* The macro is now deprecated and the function is included
* unconditionally.
*/
#ifndef ipconfigINCLUDE_FULL_INET_ADDR
#define ipconfigINCLUDE_FULL_INET_ADDR 1
#endif
/* This is about how new packets are passed from the network interface
* to the IP-task. By default they will be sent one-by-one.
* When 'ipconfigUSE_LINKED_RX_MESSAGES' is non-zero, each message
* buffer gets a 'pxNextBuffer' field, to that linked packets can be passed
* to the IP-task in a single call to 'xSendEventStructToIPTask()'.
* Note that this only works if the Network Interface also supports this
* option.
*/
#ifndef ipconfigUSE_LINKED_RX_MESSAGES
#define ipconfigUSE_LINKED_RX_MESSAGES 0
#endif
/* 'ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS' is an important macro: it
* determines the number of network buffers that are available in the
* entire application.
* Note that the default of 45 may be pretty high for smaller
* applications.
* Also note that when the network interface uses zero-copy reception
* ( ipconfigZERO_COPY_RX_DRIVER ), it will reserve a set of network
* buffers permanently.
* For zero-copy transmission, no network buffers are permanently
* "reserved" for transmission.
*/
#ifndef ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS
#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS 45U
#endif
/* Every task, and also the network interface can send messages
* to the IP-task by calling API's. These messages pass through a
* queue which has a maximum size of 'ipconfigEVENT_QUEUE_LENGTH'
* items.
* When developing an application, it is important to monitor the
* actual usage of the queue. See 'ipconfigCHECK_IP_QUEUE_SPACE'
* here below.
*/
#ifndef ipconfigEVENT_QUEUE_LENGTH
#define ipconfigEVENT_QUEUE_LENGTH ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5U )
#endif
#if ( ipconfigEVENT_QUEUE_LENGTH < ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5U ) )
#error The ipconfigEVENT_QUEUE_LENGTH parameter must be at least ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5
#endif
/* Related to the macro 'ipconfigEVENT_QUEUE_LENGTH' here above:
* when developing a new networking application, it can be helpful
* to monitor the length of the message queue of the IP-task.
* This code is only enabled when 'ipconfigCHECK_IP_QUEUE_SPACE'
* is set to 1. See also the function 'uxGetMinimumIPQueueSpace()'.
*/
#ifndef ipconfigCHECK_IP_QUEUE_SPACE
#define ipconfigCHECK_IP_QUEUE_SPACE 0
#endif
/* When defined as non-zero, this macro allows to use a socket
* without first binding it explicitly to a port number.
* In that case, it will be bound to a random free port number. */
#ifndef ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND
#define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND 1
#endif
/* Configuration to control whether packets with IP options,
* received over the network, should be passed up to the
* software stack OR should be dropped.
* If set to 1, the stack accepts IP packets that contain IP options, but does
* not process the options (IP options are not supported).
* If set to 0, the stack will drop IP packets that contain IP options.
*/
#ifndef ipconfigIP_PASS_PACKETS_WITH_IP_OPTIONS
#define ipconfigIP_PASS_PACKETS_WITH_IP_OPTIONS 1
#endif
/* Configuration to control whether all outgoing IP datagrams get their
* "don't fragment" flag set.
* If set to 1, the stack will set the "don't fragment" flag on all outgoing IP
* packets. If a packet needs to be fragmented somewhere along it's path, it will get
* discarded instead of fragmented.
* If set to 0, the stack will clear the "don't fragment" flag an all outgoing IP
* packets therefore allowing fragmentation if it is needed.
*/
#ifndef ipconfigFORCE_IP_DONT_FRAGMENT
#define ipconfigFORCE_IP_DONT_FRAGMENT 0
#endif
/* Configuration to control whether UDP packets with
* checksum value of zero should be passed up the software
* stack OR should be dropped.
* When enabled, the stack will accept UDP packets that have their checksum
* value set to 0.
* When disabled, the stack will drop UDP packets that have their checksum
* value set to 0, and issue some logging.
*/
#ifndef ipconfigUDP_PASS_ZERO_CHECKSUM_PACKETS
#define ipconfigUDP_PASS_ZERO_CHECKSUM_PACKETS 0
#endif
/* Define the value of the TTL field in outgoing UDP packets. */
#ifndef ipconfigUDP_TIME_TO_LIVE
#define ipconfigUDP_TIME_TO_LIVE 128
#endif
/* Define the value of the TTL field in outgoing TCP packets. */
#ifndef ipconfigTCP_TIME_TO_LIVE
#define ipconfigTCP_TIME_TO_LIVE 128
#endif
/* Define the value of the TTL field in outgoing TCP packets. */
/* The default of 64 is recommend in RFC 1700. */
#ifndef ipconfigICMP_TIME_TO_LIVE
#define ipconfigICMP_TIME_TO_LIVE 64
#endif
/* TCP only: when measuring the Smoothed Round Trip Time (SRTT),
* the result will be rounded up to a minimum value.
* The default has always been 50, but a value of 1000
* is recommended ( see RFC6298 ) because hosts often delay the
* sending of ACK packets with 200 ms. */
#ifndef ipconfigTCP_SRTT_MINIMUM_VALUE_MS
#define ipconfigTCP_SRTT_MINIMUM_VALUE_MS 50
#endif
/* Make positive to define the maximum number of packets which will be buffered
* in a UDP socket.
* Can be overridden with the socket option 'FREERTOS_SO_UDP_MAX_RX_PACKETS'.
*/
#ifndef ipconfigUDP_MAX_RX_PACKETS
#define ipconfigUDP_MAX_RX_PACKETS 0U
#endif
/* Define the priority of the IP-task. It is recommended to use this
* order of priorities:
* Highest : network interface, handling transmission and reception.
* Medium : the IP-task handling API calls from the application.
* Lower : the tasks that make use of the IP-stack.
* For other tasks any priority can be chosen.
*/
#ifndef ipconfigIP_TASK_PRIORITY
#define ipconfigIP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
#endif
/* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
* task. This setting is less important when the FreeRTOS Win32 simulator is used
* as the Win32 simulator only stores a fixed amount of information on the task
* stack. FreeRTOS includes optional stack overflow detection, see:
* http://www.freertos.org/Stacks-and-stack-overflow-checking.html. */
#ifndef ipconfigIP_TASK_STACK_SIZE_WORDS
#define ipconfigIP_TASK_STACK_SIZE_WORDS ( configMINIMAL_STACK_SIZE * 5 )
#endif
/* When non-zero, the module FreeRTOS_DHCP.c will be included and called.
* Note that the application can override decide to ignore the outcome
* of the DHCP negotiation and use a static IP-address. */
#ifndef ipconfigUSE_DHCP
#define ipconfigUSE_DHCP 1
#endif
/* During the DHCP process, the driver will call an application hook
* if 'ipconfigUSE_DHCP_HOOK' is non-zero. It lets the application decide
* if the DHCP offer shall be accepted.
*/
#ifndef ipconfigUSE_DHCP_HOOK
#define ipconfigUSE_DHCP_HOOK 1
#endif
/* DHCP servers have a table with information about each clients. One
* of the fields in this table contains the host name of the DHCP clients.
* When 'ipconfigDHCP_REGISTER_HOSTNAME' is defined as non-zero, the DHCP
* driver will call 'pcApplicationHostnameHook()' to obtain the name of
* the embedded device.
*/
#ifndef ipconfigDHCP_REGISTER_HOSTNAME
#define ipconfigDHCP_REGISTER_HOSTNAME 0
#endif
/*
* Only applicable when DHCP is in use:
* If no DHCP server responds, use "Auto-IP" : the
* device will allocate a random LinkLayer IP address.
*/
#ifndef ipconfigDHCP_FALL_BACK_AUTO_IP
#define ipconfigDHCP_FALL_BACK_AUTO_IP ( 0 )
#endif
/* When a link-layer address is assigned, the driver will test
* if it is already taken by a different device by sending ARP
* requests. Therefore, 'ipconfigARP_USE_CLASH_DETECTION' must
* be defined as non-zero.
*/
#if ( ipconfigDHCP_FALL_BACK_AUTO_IP != 0 )
#ifndef ipconfigARP_USE_CLASH_DETECTION
#define ipconfigARP_USE_CLASH_DETECTION 1
#else
#if ( ipconfigARP_USE_CLASH_DETECTION != 1 )
#error ipconfigARP_USE_CLASH_DETECTION should be defined as 1 when AUTO_IP is used.
#endif
#endif
#endif
/* If ipconfigDHCP_FALL_BACK_AUTO_IP is not used, the code for
* clash detection is not needed.
*/
#ifndef ipconfigARP_USE_CLASH_DETECTION
#define ipconfigARP_USE_CLASH_DETECTION 0
#endif
/* An important macro: 'ipconfigNETWORK_MTU' determines the Maximum
* transmission unit, which is a network packet minus the size of the
* 14-byte Ethernet header.
*/
#ifndef ipconfigNETWORK_MTU
#define ipconfigNETWORK_MTU 1500
#else
/* A sanity check to avoid a possible overflow of size_t. */
#if ipconfigNETWORK_MTU > ( SIZE_MAX >> 1 )
/* MISRA Ref 20.5.1 [Use of undef] */
/* More details at: https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/blob/main/MISRA.md#rule-2051 */
/* coverity[misra_c_2012_rule_20_5_violation] */
#undef ipconfigNETWORK_MTU
#define ipconfigNETWORK_MTU ( SIZE_MAX >> 1 )
#endif
#endif
#if ( ipconfigNETWORK_MTU < 46 )
#error ipconfigNETWORK_MTU must be at least 46.
#endif
/* The maximum segment size used by TCP, it is the maximum size of
* the TCP payload per packet.
* For IPv4: when MTU equals 1500, the MSS equals 1460.
* It is recommended to use the default value defined here.
*
* In FreeRTOS_TCP_IP.c, there is a local macro called 'tcpREDUCED_MSS_THROUGH_INTERNET'.
* When a TCP connection is made outside the local network, the MSS
* will be reduced to 'tcpREDUCED_MSS_THROUGH_INTERNET' before the connection
* is made.
*/
#ifndef ipconfigTCP_MSS
#define ipconfigTCP_MSS ( ipconfigNETWORK_MTU - ( ipSIZE_OF_IPv4_HEADER + ipSIZE_OF_TCP_HEADER ) )
#endif
/* This macro defines the minimum size of an outgoing Ethernet packet.
* When zero, there is no minimum.
* When non-zero, the packet will be extended to the minimum size.
* The extra bytes will be cleared.
* In many projects a value of 60 is used.
* The 32-bit CRC added in the physical layer is not included.
*/
#ifndef ipconfigETHERNET_MINIMUM_PACKET_BYTES
#define ipconfigETHERNET_MINIMUM_PACKET_BYTES 0
#endif
/* Each TCP socket has circular stream buffers for reception and transmission,
* which have a fixed maximum size.
* The defaults for these sizes are defined here, although
* they can be overridden at runtime by calling FreeRTOS_setsockopt(),
* and use 'FREERTOS_SO_RCVBUF', 'FREERTOS_SO_SNDBUF' or
* 'FREERTOS_SO_WIN_PROPERTIES'.
* A stream buffer will only be created when needed. A TCP server socket
* will never create buffers.
*/
#ifndef ipconfigTCP_RX_BUFFER_LENGTH
/* When MTU equals 1500, the buffer length defaults to 5840 bytes */
#define ipconfigTCP_RX_BUFFER_LENGTH ( 4U * ipconfigTCP_MSS )
#endif
/* Define the size of Tx stream buffer for TCP sockets.
*/
#ifndef ipconfigTCP_TX_BUFFER_LENGTH
/* When MTU equals 1500, the buffer length defaults to 5840 bytes */
#define ipconfigTCP_TX_BUFFER_LENGTH ( 4U * ipconfigTCP_MSS )
#endif
/* 'ipconfigMAXIMUM_DISCOVER_TX_PERIOD' is about DHCP.
* It determines the maximum time (in clock-ticks) that the DHCP client
* will wait for an offer from a DHCP server. */
#ifndef ipconfigMAXIMUM_DISCOVER_TX_PERIOD
#ifdef _WINDOWS_
#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( pdMS_TO_TICKS( 999U ) )
#else
#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( pdMS_TO_TICKS( 30000U ) )
#endif /* _WINDOWS_ */
#endif /* ipconfigMAXIMUM_DISCOVER_TX_PERIOD */
#if ( ipconfigUSE_DNS == 0 )
/* The DNS module will not be included. */
#if ( ( ipconfigUSE_LLMNR != 0 ) || ( ipconfigUSE_NBNS != 0 ) )
/* LLMNR and NBNS depend on DNS because those protocols share a lot of code. */
#error When either LLMNR or NBNS is used, ipconfigUSE_DNS must be defined
#endif
#endif
/* By default, the DNS client is included. Note that LLMNR and
* NBNS also need the code from FreeRTOS_DNS.c
*/
#ifndef ipconfigUSE_DNS
#define ipconfigUSE_DNS 1
#endif
/* When looking up a host with DNS, this macro determines how long the
* call to FreeRTOS_recvfrom() will wait for a reply.
* When there is no reply, the request will be repeated up to
* 'ipconfigDNS_REQUEST_ATTEMPTS' attempts. */
#ifndef ipconfigDNS_RECEIVE_BLOCK_TIME_TICKS
#define ipconfigDNS_RECEIVE_BLOCK_TIME_TICKS pdMS_TO_TICKS( 5000U )
#endif
/* When looking up a host with DNS, this macro determines how long the
* call to FreeRTOS_sendto() will block to wait for a free buffer. */
#ifndef ipconfigDNS_SEND_BLOCK_TIME_TICKS
#define ipconfigDNS_SEND_BLOCK_TIME_TICKS pdMS_TO_TICKS( 500U )
#endif
/* The number of times a DNS request will be send before giving up. */
#ifndef ipconfigDNS_REQUEST_ATTEMPTS
#define ipconfigDNS_REQUEST_ATTEMPTS 5
#endif
/* The results of DNS lookup's can be stored in a cache table. */
#ifndef ipconfigUSE_DNS_CACHE
#define ipconfigUSE_DNS_CACHE 1
#endif
#if ( ipconfigUSE_DNS_CACHE != 0 )
/* Per https://tools.ietf.org/html/rfc1035, 253 is the maximum string length
* of a DNS name. The following default accounts for a null terminator. */
#ifndef ipconfigDNS_CACHE_NAME_LENGTH
#define ipconfigDNS_CACHE_NAME_LENGTH 254U
#endif
/* The number of entries in the DNS cache table.
* The default of 1 is maybe too economic. */
#ifndef ipconfigDNS_CACHE_ENTRIES
#define ipconfigDNS_CACHE_ENTRIES 1U
#endif
#endif /* ipconfigUSE_DNS_CACHE != 0 */
/* When accessing services which have multiple IP addresses, setting this
* greater than 1 can improve reliability by returning different IP address
* answers on successive calls to FreeRTOS_gethostbyname(). */
#ifndef ipconfigDNS_CACHE_ADDRESSES_PER_ENTRY
#define ipconfigDNS_CACHE_ADDRESSES_PER_ENTRY 1
#endif
/* When 'ipconfigDNS_USE_CALLBACKS' is defined, a function 'FreeRTOS_gethostbyname_a()'
* will become available.
* It is used for asynchronous DNS lookups.
* This function will start a DNS-lookup and set an application hook.
* This hook will be called when either the URL has been found, or when
* a time-out has been reached.
* Note that the function 'FreeRTOS_gethostbyname_a()' will not make use of the
* macros 'ipconfigDNS_SEND_BLOCK_TIME_TICKS', 'ipconfigDNS_RECEIVE_BLOCK_TIME_TICKS'
* or 'ipconfigDNS_REQUEST_ATTEMPTS'.
*/
#ifndef ipconfigDNS_USE_CALLBACKS
#define ipconfigDNS_USE_CALLBACKS 0
#endif
/* Include support for LLMNR: Link-local Multicast Name Resolution. */
#ifndef ipconfigUSE_LLMNR
#define ipconfigUSE_LLMNR ( 0 )
#endif
/* Include support for NBNS: NetBIOS Name Server. */
#ifndef ipconfigUSE_NBNS
#define ipconfigUSE_NBNS 0
#endif
/* Include support for MDNS: Multicast DNS. */
#ifndef ipconfigUSE_MDNS
#define ipconfigUSE_MDNS 0
#endif
/* It is recommended to let the application respond to incoming ping
* requests. */
#ifndef ipconfigREPLY_TO_INCOMING_PINGS
#define ipconfigREPLY_TO_INCOMING_PINGS 1
#endif
/* Add code for outgoing pings as well. */
#ifndef ipconfigSUPPORT_OUTGOING_PINGS
#define ipconfigSUPPORT_OUTGOING_PINGS 0
#endif
/* A MISRA note: The macros 'ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES'
* and 'ipconfigETHERNET_DRIVER_FILTERS_PACKETS' are too long:
* the first 32 bytes are equal, which might cause problems
* for some compilers. */
/* Beside that, there is some overlap between the following 3 macros. Here is
* a summary:
*
* 1) ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES
* When disabled, the IP-task will call 'eConsiderFrameForProcessing()'
* to check incoming packets.
* 2) ipconfigETHERNET_DRIVER_FILTERS_PACKETS
* When disabled, the IP-task will perform sanity checks on the IP-header,
* also checking the target IP address.
* Also when disabled, xPortHasUDPSocket() won't be included. That means
* that the IP-task can access the 'xBoundUDPSocketsList' without locking.
* 3) ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES
* When enabled, the function 'eConsiderFrameForProcessing()' will also
* check if the Ethernet frame type is acceptable.
*/
/* The following macro determines if the network interface will
* do checks on the incoming packets. When false, the IP-task will
* perform these checks in the function eConsiderFrameForProcessing().
*
* It should be noted that it is most efficient to drop unwanted packets
* as early as possible.
*/
#ifndef ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES
#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
#endif
/* When ipconfigETHERNET_DRIVER_FILTERS_PACKETS is enabled, the network
* interface will inspect the incoming packets to see if they can be
* accepted.
* When enabled, the function 'xPortHasUDPSocket()' will become available.
* That function checks if there is a UDP socket listening to a
* given port number.
*/
#ifndef ipconfigETHERNET_DRIVER_FILTERS_PACKETS
#define ipconfigETHERNET_DRIVER_FILTERS_PACKETS ( 0 )
#endif
/* When defined as 1, the driver will drop all packets with an unknown
* frame type.
* This macro is only looked at when 'ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES'
* is disabled.
*/
#ifndef ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES
#define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES 1
#endif
/* The macro 'ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS' was
* introduced to enable a tracing system.
* Currently it is only used in BufferAllocation_2.c.
*/
#ifndef configINCLUDE_TRACE_RELATED_CLI_COMMANDS
#define ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS 0
#else
#define ipconfigINCLUDE_EXAMPLE_FREERTOS_PLUS_TRACE_CALLS configINCLUDE_TRACE_RELATED_CLI_COMMANDS
#endif
/* This macro will be called in every loop the IP-task makes. It may be
* replaced by user-code that triggers a watchdog */
#ifndef ipconfigWATCHDOG_TIMER
#define ipconfigWATCHDOG_TIMER()
#endif
/* The option 'ipconfigUSE_CALLBACKS' allows to assign specific application
* hooks to a socket. Each hook will be set with a specific socket option:
*
* FREERTOS_SO_TCP_CONN_HANDLER * Callback for (dis) connection events.
* * Supply pointer to 'F_TCP_UDP_Handler_t'
* FREERTOS_SO_TCP_RECV_HANDLER * Callback for receiving TCP data.
* * Supply pointer to 'F_TCP_UDP_Handler_t'
* FREERTOS_SO_TCP_SENT_HANDLER * Callback for sending TCP data.
* * Supply pointer to 'F_TCP_UDP_Handler_t'
* FREERTOS_SO_UDP_RECV_HANDLER * Callback for receiving UDP data.
* * Supply pointer to 'F_TCP_UDP_Handler_t'
* FREERTOS_SO_UDP_SENT_HANDLER * Callback for sending UDP data.
* * Supply pointer to 'F_TCP_UDP_Handler_t'
*
* Note that the call-back functions will run in the IP-task, so very little
* things can be done. Better not to call any networking API, because that
* could easily lead to a deadlock situation.
*/
#ifndef ipconfigUSE_CALLBACKS
#define ipconfigUSE_CALLBACKS ( 0 )
#endif
/* Replace this macro with a test returning non-zero if the memory pointer to by
* pxAddress is valid memory which can contain executable code.
* In fact this is an extra safety measure: if a handler points to invalid memory,
* it will not be called.
* The parameter 'pxAddress' is in fact a pointer to a function.
*/
#if ( ipconfigUSE_CALLBACKS != 0 )
#ifndef ipconfigIS_VALID_PROG_ADDRESS
#define ipconfigIS_VALID_PROG_ADDRESS( pxAddress ) ( ( pxAddress ) != NULL )
#endif
#endif
/* The macro 'ipconfigHAS_INLINE_FUNCTIONS' is now deprecated. */
#ifndef ipconfigHAS_INLINE_FUNCTIONS
#define ipconfigHAS_INLINE_FUNCTIONS ( 1 )
#endif
/* Since all code is made compatible with the MISRA rules, the inline functions
* disappear. 'portINLINE' should normally be defined in FreeRTOSCOnfig.h
*/
#ifndef portINLINE
#define portINLINE inline
#endif
/* When non-zero, the buffers passed to xNetworkInterfaceOutput() will be passed
* directly to DMA. As soon as sending is ready, the buffers must be released by
* calling vReleaseNetworkBufferAndDescriptor(). */
#ifndef ipconfigZERO_COPY_TX_DRIVER
#define ipconfigZERO_COPY_TX_DRIVER ( 0 )
#endif
/* When enabled, the network interface will pass the network buffers directly to
* the DMA descriptors. When a packet has been received, the function
* pxPacketBuffer_to_NetworkBuffer() will translate a buffer address to a
* network packet, so it can be passed to the IP-task. */
#ifndef ipconfigZERO_COPY_RX_DRIVER
#define ipconfigZERO_COPY_RX_DRIVER ( 0 )
#endif
/* When ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM is defined as non-zero,
* the network interface is responsible for setting the checksums
* of the outgoing packets.
* This can be either done in hardware, or by calling the checksum
* routines from 'xNetworkInterfaceOutput()'.
*/
#ifndef ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM
#define ipconfigDRIVER_INCLUDED_TX_IP_CHECKSUM 0
#endif
/* When ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM is enabled,
* the network interface is responsible for checking the checksums
* of the incoming packets.
* This can be either done in hardware, or by calling the checksum
* functions.
*/
#ifndef ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM
#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 0
#endif
/* The macro 'ipconfigSOCKET_HAS_USER_SEMAPHORE' is rarely used, yet it
* can be very useful. IT applies to both TCP and UDP sockets.
*
* The application can register a semaphore ( of type 'SemaphoreHandle_t' )
* in a socket with the option 'FREERTOS_SO_SET_SEMAPHORE'.
* Once set, the semaphore will be signalled after every important socket event:
* READ, WRITE, EXCEPTION.
* Note that a READ event is also generated for a TCP socket in listen mode,
* and a WRITE event is generated when a call to connect() has succeeded.
* Beside that, READ and WRITE are the normal events that occur when
* data has been received or delivered.
*/
#ifndef ipconfigSOCKET_HAS_USER_SEMAPHORE
#define ipconfigSOCKET_HAS_USER_SEMAPHORE 0
#endif
/* The macro 'ipconfigSOCKET_HAS_USER_WAKE_CALLBACK' allows to use a call-back
* function that will be called at the moment one of the above events occurs.
* Use the socket option 'FREERTOS_SO_WAKEUP_CALLBACK' to install a function
* of the type 'void callback( Socket_t pxSocket )'.
* Note that the call-back function runs in the IP-task, so very little things
* can be done. Better not to call any networking API, because that could
* easily lead to a deadlock situation.
*/
#ifndef ipconfigSOCKET_HAS_USER_WAKE_CALLBACK
#define ipconfigSOCKET_HAS_USER_WAKE_CALLBACK 0
#endif
/* Yet another possibility that makes it easy to handle multiple socket in
* a single task FreeRTOS_select(). The code for this functionality will
* be included when 'ipconfigSUPPORT_SELECT_FUNCTION' is defined as non-zero.
*/
#ifndef ipconfigSUPPORT_SELECT_FUNCTION
#define ipconfigSUPPORT_SELECT_FUNCTION 0
#endif
/* If the select function will be called simultaneously from more that one task
* e.g. one for 'eSELECT_READ', and the other for the other flags, it is strongly
* recommended to define 'ipconfigSELECT_USES_NOTIFY'.
* The problem is 'eSELECT_CALL_IP': 2 tasks would be waiting for the same bit
* in the event group, and both will try to reset this bit.
* When ipconfigSELECT_USES_NOTIFY is used, the IP-task will wakeup the calling
* task by notifying it.
*/
#ifndef ipconfigSELECT_USES_NOTIFY
#define ipconfigSELECT_USES_NOTIFY 0
#endif
/* TCP only: if the 'ipconfigTCP_KEEP_ALIVE' macro is defined as 1,
* sockets in state "ESTABLISHED" can be protected using keep-alive packets.
* These packets will be sent as soon as there hasn't been any activity
* for a while.
* The macro 'ipconfigTCP_KEEP_ALIVE_INTERVAL' determines the interval at
* which keep-alive packets are sent.
*/
#ifndef ipconfigTCP_KEEP_ALIVE
#define ipconfigTCP_KEEP_ALIVE 0
#endif
/* The period of non-activity ( in seconds ) after which the driver will
* start sending a keep-alive packet to the TCP peer. The default is 20 seconds.
*/
#ifndef ipconfigTCP_KEEP_ALIVE_INTERVAL
#define ipconfigTCP_KEEP_ALIVE_INTERVAL 20U
#endif
/* Another less used option: signals. This macro makes it possible to interrupt
* a blocking call to one of the API's by calling either FreeRTOS_SignalSocket() or
* FreeRTOS_SignalSocketFromISR() for that socket.
* When an API got interrupted, it will return the error value -pdFREERTOS_ERRNO_EINTR.
*/
#ifndef ipconfigSUPPORT_SIGNALS
#define ipconfigSUPPORT_SIGNALS 0
#endif
/* Hang protection can help reduce the impact of SYN floods.
* When a SYN packet comes in, it will first be checked if there is a listening
* socket for the port number. If not, it will be replied to with a RESET packet.
* If there is a listing socket for that port number, a new socket will be created.
* This socket will be owned temporarily by the IP-task. Only when the SYN/ACK
* handshake is finished, the new socket will be passed to the application,
* resulting in a successful call to FreeRTOS_accept().
* The option 'ipconfigTCP_HANG_PROTECTION' will make sure that the socket will be
* deleted in case the SYN-handshake doesn't come to a good end.
* See also ipconfigTCP_HANG_PROTECTION_TIME time.
*/
#ifndef ipconfigTCP_HANG_PROTECTION
#define ipconfigTCP_HANG_PROTECTION 1
#endif
/* ipconfigTCP_HANG_PROTECTION_TIME defines the maximum time that a socket stays
* in one of these "in-between" states:
*
* eCONNECT_SYN, eSYN_FIRST, eSYN_RECEIVED, eFIN_WAIT_1, eFIN_WAIT_2, eCLOSING,
* eLAST_ACK, or eTIME_WAIT.
*/
#ifndef ipconfigTCP_HANG_PROTECTION_TIME
#define ipconfigTCP_HANG_PROTECTION_TIME 30U
#endif
/* Initially, 'ipconfigTCP_IP_SANITY' was introduced to include all code that checks
* the correctness of the algorithms. However, it is only used in BufferAllocation_1.c
* When defined as non-zero, some extra code will check the validity of network buffers.
*/
#ifndef ipconfigTCP_IP_SANITY
#define ipconfigTCP_IP_SANITY 0
#endif
/* Expert option: define a value for 'ipBUFFER_PADDING'.
* When 'ipconfigBUFFER_PADDING' equals 0,
* 'ipBUFFER_PADDING' will get a default value of 8 + 2 bytes. */
#ifndef ipconfigBUFFER_PADDING
#define ipconfigBUFFER_PADDING 0U
#endif
/* This library treats the network packets as structs, containing 16- and 32-bit
* variables. However, due to the size of the Ethernet header, the 32-byte
* variables are badly aligned.
* This is corrected with the macro 'ipconfigPACKET_FILLER_SIZE' which has a default
* of two. Thanks to this offset, ( almost ) all 32-bit numbers can be read and
* written in a single assembler instruction.
*/
#ifndef ipconfigPACKET_FILLER_SIZE
#define ipconfigPACKET_FILLER_SIZE 2U
#endif
/* Set to 1 if you plan on processing custom Ethernet protocols or protocols
* that are not yet supported by the FreeRTOS+TCP stack. If set to 1,
* the user must define eFrameProcessingResult_t eApplicationProcessCustomFrameHook( NetworkBufferDescriptor_t * const pxNetworkBuffer )
* which will be called by the stack for any frame with an unsupported EtherType. */
#ifndef ipconfigPROCESS_CUSTOM_ETHERNET_FRAMES
#define ipconfigPROCESS_CUSTOM_ETHERNET_FRAMES 0
#endif
#ifndef ipconfigND_CACHE_ENTRIES
#define ipconfigND_CACHE_ENTRIES 24
#endif
#ifndef ipconfigHAS_ROUTING_STATISTICS
#define ipconfigHAS_ROUTING_STATISTICS 1
#endif
#ifndef ipconfigUSE_RA
#define ipconfigUSE_RA 1
#endif
/* RA or Router Advertisement/SLAAC: see end-point flag 'bWantRA'.
* An Router Solicitation will be sent. It will wait for ipconfigRA_SEARCH_TIME_OUT_MSEC ms.
* When there is no response, it will be repeated ipconfigRA_SEARCH_COUNT times.
* Then it will be checked if the chosen IP-address already exists, repeating this
* ipconfigRA_IP_TEST_COUNT times, each time with a timeout of ipconfigRA_IP_TEST_TIME_OUT_MSEC ms.
* Finally the end-point will go in the UP state.
*/
#ifndef ipconfigRA_SEARCH_COUNT
#define ipconfigRA_SEARCH_COUNT ( 3U )
#endif
#ifndef ipconfigRA_SEARCH_TIME_OUT_MSEC
#define ipconfigRA_SEARCH_TIME_OUT_MSEC ( 10000U )
#endif
#ifndef ipconfigRA_IP_TEST_COUNT
#define ipconfigRA_IP_TEST_COUNT ( 3 )
#endif
#ifndef ipconfigRA_IP_TEST_TIME_OUT_MSEC
#define ipconfigRA_IP_TEST_TIME_OUT_MSEC ( 1500U )
#endif
#endif /* FREERTOS_DEFAULT_IP_CONFIG_H */
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