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			307 lines
		
	
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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| FreeRTOS V202011.00
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| Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
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| 
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| Permission is hereby granted, free of charge, to any person obtaining a copy of
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| this software and associated documentation files (the "Software"), to deal in
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| the Software without restriction, including without limitation the rights to
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| use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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| the Software, and to permit persons to whom the Software is furnished to do so,
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| subject to the following conditions:
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| 
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| The above copyright notice and this permission notice shall be included in all
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| copies or substantial portions of the Software.
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| 
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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| FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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| COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 
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|  http://aws.amazon.com/freertos
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|  http://www.FreeRTOS.org
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| */
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| 
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| 
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| /*****************************************************************************
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| *
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| * See the following URL for configuration information.
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| * http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html
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| *
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| *****************************************************************************/
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| 
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| #ifndef FREERTOS_IP_CONFIG_H
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| #define FREERTOS_IP_CONFIG_H
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| 
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| /* Set to 1 to print out debug messages.  If ipconfigHAS_DEBUG_PRINTF is set to
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|  * 1 then FreeRTOS_debug_printf should be defined to the function used to print
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|  * out the debugging messages. */
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| #define ipconfigHAS_DEBUG_PRINTF    0
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| #if ( ipconfigHAS_DEBUG_PRINTF == 1 )
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|     #define FreeRTOS_debug_printf( X )    configPRINTF( X )
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| #endif
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| 
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| /* Set to 1 to print out non debugging messages, for example the output of the
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|  * FreeRTOS_netstat() command, and ping replies.  If ipconfigHAS_PRINTF is set to 1
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|  * then FreeRTOS_printf should be set to the function used to print out the
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|  * messages. */
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| #define FreeRTOS_printf( X )
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| 
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| 
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| /* Define the byte order of the target MCU (the MCU FreeRTOS+TCP is executing
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|  * on).  Valid options are pdFREERTOS_BIG_ENDIAN and pdFREERTOS_LITTLE_ENDIAN. */
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| #define ipconfigBYTE_ORDER                         pdFREERTOS_LITTLE_ENDIAN
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| 
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| /* If the network card/driver includes checksum offloading (IP/TCP/UDP checksums)
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|  * then set ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM to 1 to prevent the software
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|  * stack repeating the checksum calculations. */
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| #define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM     1
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| 
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| /* Several API's will block until the result is known, or the action has been
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|  * performed, for example FreeRTOS_send() and FreeRTOS_recv().  The timeouts can be
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|  * set per socket, using setsockopt().  If not set, the times below will be
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|  * used as defaults. */
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| #define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME    ( 5000 )
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| #define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME       ( 5000 )
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| 
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| /* Include support for DNS caching.  For TCP, having a small DNS cache is very
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|  * useful.  When a cache is present, ipconfigDNS_REQUEST_ATTEMPTS can be kept low
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|  * and also DNS may use small timeouts.  If a DNS reply comes in after the DNS
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|  * socket has been destroyed, the result will be stored into the cache.  The next
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|  * call to FreeRTOS_gethostbyname() will return immediately, without even creating
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|  * a socket. */
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| #define ipconfigUSE_DNS_CACHE                      ( 1 )
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| #define ipconfigDNS_REQUEST_ATTEMPTS               ( 2 )
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| 
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| /* The IP stack executes it its own task (although any application task can make
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|  * use of its services through the published sockets API). ipconfigUDP_TASK_PRIORITY
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|  * sets the priority of the task that executes the IP stack.  The priority is a
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|  * standard FreeRTOS task priority so can take any value from 0 (the lowest
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|  * priority) to (configMAX_PRIORITIES - 1) (the highest priority).
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|  * configMAX_PRIORITIES is a standard FreeRTOS configuration parameter defined in
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|  * FreeRTOSConfig.h, not FreeRTOSIPConfig.h. Consideration needs to be given as to
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|  * the priority assigned to the task executing the IP stack relative to the
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|  * priority assigned to tasks that use the IP stack. */
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| #define ipconfigIP_TASK_PRIORITY                   ( configMAX_PRIORITIES - 2 )
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| 
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| /* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
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|  * task.  This setting is less important when the FreeRTOS Win32 simulator is used
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|  * as the Win32 simulator only stores a fixed amount of information on the task
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|  * stack.  FreeRTOS includes optional stack overflow detection, see:
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|  * http://www.freertos.org/Stacks-and-stack-overflow-checking.html. */
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| #define ipconfigIP_TASK_STACK_SIZE_WORDS           ( configMINIMAL_STACK_SIZE * 5 )
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| 
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| /* ipconfigRAND32() is called by the IP stack to generate random numbers for
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|  * things such as a DHCP transaction number or initial sequence number.  Random
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|  * number generation is performed via this macro to allow applications to use their
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|  * own random number generation method.  For example, it might be possible to
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|  * generate a random number by sampling noise on an analogue input. */
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| extern uint32_t ulRand();
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| #define ipconfigRAND32()    ulRand()
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| 
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| /* If ipconfigUSE_NETWORK_EVENT_HOOK is set to 1 then FreeRTOS+TCP will call the
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|  * network event hook at the appropriate times.  If ipconfigUSE_NETWORK_EVENT_HOOK
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|  * is not set to 1 then the network event hook will never be called. See:
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|  * http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/API/vApplicationIPNetworkEventHook.shtml.
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|  */
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| #define ipconfigUSE_NETWORK_EVENT_HOOK           1
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| 
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| /* Sockets have a send block time attribute.  If FreeRTOS_sendto() is called but
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|  * a network buffer cannot be obtained then the calling task is held in the Blocked
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|  * state (so other tasks can continue to executed) until either a network buffer
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|  * becomes available or the send block time expires.  If the send block time expires
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|  * then the send operation is aborted.  The maximum allowable send block time is
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|  * capped to the value set by ipconfigMAX_SEND_BLOCK_TIME_TICKS.  Capping the
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|  * maximum allowable send block time prevents prevents a deadlock occurring when
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|  * all the network buffers are in use and the tasks that process (and subsequently
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|  * free) the network buffers are themselves blocked waiting for a network buffer.
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|  * ipconfigMAX_SEND_BLOCK_TIME_TICKS is specified in RTOS ticks.  A time in
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|  * milliseconds can be converted to a time in ticks by dividing the time in
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|  * milliseconds by portTICK_PERIOD_MS. */
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| #define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS    ( 5000U / portTICK_PERIOD_MS )
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| 
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| /* If ipconfigUSE_DHCP is 1 then FreeRTOS+TCP will attempt to retrieve an IP
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|  * address, netmask, DNS server address and gateway address from a DHCP server.  If
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|  * ipconfigUSE_DHCP is 0 then FreeRTOS+TCP will use a static IP address.  The
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|  * stack will revert to using the static IP address even when ipconfigUSE_DHCP is
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|  * set to 1 if a valid configuration cannot be obtained from a DHCP server for any
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|  * reason.  The static configuration used is that passed into the stack by the
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|  * FreeRTOS_IPInit() function call. */
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| #define ipconfigUSE_DHCP                         1
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| #define ipconfigDHCP_REGISTER_HOSTNAME           1
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| #define ipconfigDHCP_USES_UNICAST                1
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| 
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| /* If ipconfigDHCP_USES_USER_HOOK is set to 1 then the application writer must
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|  * provide an implementation of the DHCP callback function,
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|  * xApplicationDHCPUserHook(). */
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| #define ipconfigUSE_DHCP_HOOK                    0
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| 
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| /* When ipconfigUSE_DHCP is set to 1, DHCP requests will be sent out at
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|  * increasing time intervals until either a reply is received from a DHCP server
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|  * and accepted, or the interval between transmissions reaches
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|  * ipconfigMAXIMUM_DISCOVER_TX_PERIOD.  The IP stack will revert to using the
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|  * static IP address passed as a parameter to FreeRTOS_IPInit() if the
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|  * re-transmission time interval reaches ipconfigMAXIMUM_DISCOVER_TX_PERIOD without
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|  * a DHCP reply being received. */
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| #define ipconfigMAXIMUM_DISCOVER_TX_PERIOD \
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|     ( 120000U / portTICK_PERIOD_MS )
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| 
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| /* The ARP cache is a table that maps IP addresses to MAC addresses.  The IP
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|  * stack can only send a UDP message to a remove IP address if it knowns the MAC
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|  * address associated with the IP address, or the MAC address of the router used to
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|  * contact the remote IP address.  When a UDP message is received from a remote IP
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|  * address the MAC address and IP address are added to the ARP cache.  When a UDP
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|  * message is sent to a remote IP address that does not already appear in the ARP
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|  * cache then the UDP message is replaced by a ARP message that solicits the
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|  * required MAC address information.  ipconfigARP_CACHE_ENTRIES defines the maximum
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|  * number of entries that can exist in the ARP table at any one time. */
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| #define ipconfigARP_CACHE_ENTRIES                 6
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| 
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| /* ARP requests that do not result in an ARP response will be re-transmitted a
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|  * maximum of ipconfigMAX_ARP_RETRANSMISSIONS times before the ARP request is
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|  * aborted. */
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| #define ipconfigMAX_ARP_RETRANSMISSIONS           ( 5 )
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| 
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| /* ipconfigMAX_ARP_AGE defines the maximum time between an entry in the ARP
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|  * table being created or refreshed and the entry being removed because it is stale.
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|  * New ARP requests are sent for ARP cache entries that are nearing their maximum
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|  * age.  ipconfigMAX_ARP_AGE is specified in tens of seconds, so a value of 150 is
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|  * equal to 1500 seconds (or 25 minutes). */
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| #define ipconfigMAX_ARP_AGE                       150
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| 
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| /* Implementing FreeRTOS_inet_addr() necessitates the use of string handling
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|  * routines, which are relatively large.  To save code space the full
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|  * FreeRTOS_inet_addr() implementation is made optional, and a smaller and faster
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|  * alternative called FreeRTOS_inet_addr_quick() is provided.  FreeRTOS_inet_addr()
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|  * takes an IP in decimal dot format (for example, "192.168.0.1") as its parameter.
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|  * FreeRTOS_inet_addr_quick() takes an IP address as four separate numerical octets
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|  * (for example, 192, 168, 0, 1) as its parameters.  If
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|  * ipconfigINCLUDE_FULL_INET_ADDR is set to 1 then both FreeRTOS_inet_addr() and
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|  * FreeRTOS_indet_addr_quick() are available.  If ipconfigINCLUDE_FULL_INET_ADDR is
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|  * not set to 1 then only FreeRTOS_indet_addr_quick() is available. */
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| #define ipconfigINCLUDE_FULL_INET_ADDR            1
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| 
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| /* ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS defines the total number of network buffer that
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|  * are available to the IP stack.  The total number of network buffers is limited
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|  * to ensure the total amount of RAM that can be consumed by the IP stack is capped
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|  * to a pre-determinable value. */
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| #ifndef ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS
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| 	#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS    60
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| #endif
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| 
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| /* A FreeRTOS queue is used to send events from application tasks to the IP
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|  * stack.  ipconfigEVENT_QUEUE_LENGTH sets the maximum number of events that can
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|  * be queued for processing at any one time.  The event queue must be a minimum of
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|  * 5 greater than the total number of network buffers. */
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| #define ipconfigEVENT_QUEUE_LENGTH \
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|     ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5 )
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| 
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| /* The address of a socket is the combination of its IP address and its port
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|  * number.  FreeRTOS_bind() is used to manually allocate a port number to a socket
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|  * (to 'bind' the socket to a port), but manual binding is not normally necessary
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|  * for client sockets (those sockets that initiate outgoing connections rather than
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|  * wait for incoming connections on a known port number).  If
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|  * ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 1 then calling
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|  * FreeRTOS_sendto() on a socket that has not yet been bound will result in the IP
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|  * stack automatically binding the socket to a port number from the range
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|  * socketAUTO_PORT_ALLOCATION_START_NUMBER to 0xffff.  If
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|  * ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 0 then calling FreeRTOS_sendto()
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|  * on a socket that has not yet been bound will result in the send operation being
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|  * aborted. */
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| #define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND         1
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| 
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| /* Defines the Time To Live (TTL) values used in outgoing UDP packets. */
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| #define ipconfigUDP_TIME_TO_LIVE                       128
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| /* Also defined in FreeRTOSIPConfigDefaults.h. */
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| #define ipconfigTCP_TIME_TO_LIVE                       128
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| 
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| /* USE_TCP: Use TCP and all its features. */
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| #define ipconfigUSE_TCP                                ( 1 )
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| 
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| /* USE_WIN: Let TCP use windowing mechanism. */
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| #define ipconfigUSE_TCP_WIN                            ( 1 )
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| 
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| /* The MTU is the maximum number of bytes the payload of a network frame can
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|  * contain.  For normal Ethernet V2 frames the maximum MTU is 1500.  Setting a
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|  * lower value can save RAM, depending on the buffer management scheme used.  If
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|  * ipconfigCAN_FRAGMENT_OUTGOING_PACKETS is 1 then (ipconfigNETWORK_MTU - 28) must
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|  * be divisible by 8. */
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| #define ipconfigNETWORK_MTU                            1200U
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| 
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| /* Set ipconfigUSE_DNS to 1 to include a basic DNS client/resolver.  DNS is used
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|  * through the FreeRTOS_gethostbyname() API function. */
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| #define ipconfigUSE_DNS                                1
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| 
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| /* If ipconfigREPLY_TO_INCOMING_PINGS is set to 1 then the IP stack will
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|  * generate replies to incoming ICMP echo (ping) requests. */
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| #define ipconfigREPLY_TO_INCOMING_PINGS                1
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| 
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| /* If ipconfigSUPPORT_OUTGOING_PINGS is set to 1 then the
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|  * FreeRTOS_SendPingRequest() API function is available. */
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| #define ipconfigSUPPORT_OUTGOING_PINGS                 0
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| 
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| /* If ipconfigSUPPORT_SELECT_FUNCTION is set to 1 then the FreeRTOS_select()
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|  * (and associated) API function is available. */
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| #define ipconfigSUPPORT_SELECT_FUNCTION                0
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| 
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| /* If ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES is set to 1 then Ethernet frames
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|  * that are not in Ethernet II format will be dropped.  This option is included for
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|  * potential future IP stack developments. */
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| #define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES      1
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| 
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| /* If ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES is set to 1 then it is the
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|  * responsibility of the Ethernet interface to filter out packets that are of no
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|  * interest.  If the Ethernet interface does not implement this functionality, then
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|  * set ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES to 0 to have the IP stack
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|  * perform the filtering instead (it is much less efficient for the stack to do it
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|  * because the packet will already have been passed into the stack).  If the
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|  * Ethernet driver does all the necessary filtering in hardware then software
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|  * filtering can be removed by using a value other than 1 or 0. */
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| #define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES    1
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| 
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| /* The windows simulator cannot really simulate MAC interrupts, and needs to
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|  * block occasionally to allow other tasks to run. */
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| #define configWINDOWS_MAC_INTERRUPT_SIMULATOR_DELAY    ( 20 / portTICK_PERIOD_MS )
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| 
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| /* Advanced only: in order to access 32-bit fields in the IP packets with
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|  * 32-bit memory instructions, all packets will be stored 32-bit-aligned,
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|  * plus 16-bits. This has to do with the contents of the IP-packets: all
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|  * 32-bit fields are 32-bit-aligned, plus 16-bit. */
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| #define ipconfigPACKET_FILLER_SIZE                     2U
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| 
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| /* Define the size of the pool of TCP window descriptors.  On the average, each
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|  * TCP socket will use up to 2 x 6 descriptors, meaning that it can have 2 x 6
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|  * outstanding packets (for Rx and Tx).  When using up to 10 TP sockets
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|  * simultaneously, one could define TCP_WIN_SEG_COUNT as 120. */
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| #define ipconfigTCP_WIN_SEG_COUNT                      240
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| 
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| /* Each TCP socket has a circular buffers for Rx and Tx, which have a fixed
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|  * maximum size.  Define the size of Rx buffer for TCP sockets. */
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| #define ipconfigTCP_RX_BUFFER_LENGTH                   ( 10000 )
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| 
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| /* Define the size of Tx buffer for TCP sockets. */
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| #define ipconfigTCP_TX_BUFFER_LENGTH                   ( 10000 )
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| 
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| /* When using call-back handlers, the driver may check if the handler points to
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|  * real program memory (RAM or flash) or just has a random non-zero value. */
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| #define ipconfigIS_VALID_PROG_ADDRESS( x )    ( ( x ) != NULL )
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| 
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| /* Include support for TCP keep-alive messages. */
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| #define ipconfigTCP_KEEP_ALIVE                   ( 1 )
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| #define ipconfigTCP_KEEP_ALIVE_INTERVAL          ( 20 ) /* Seconds. */
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| 
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| /* The socket semaphore is used to unblock the MQTT task. */
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| #define ipconfigSOCKET_HAS_USER_SEMAPHORE        ( 0 )
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| 
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| #define ipconfigSOCKET_HAS_USER_WAKE_CALLBACK    ( 1 )
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| #define ipconfigUSE_CALLBACKS                    ( 0 )
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| 
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| 
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| #define portINLINE                               __inline
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| 
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| void vApplicationMQTTGetKeys( const char ** ppcRootCA,
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|                               const char ** ppcClientCert,
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|                               const char ** ppcClientPrivateKey );
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| 
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| #endif /* FREERTOS_IP_CONFIG_H */
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