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lwipopts.h
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/**
* @file
*
* lwIP Options Configuration
*/
/*
* LWIP configuration for XBH firmware, using FreeRTOS running on EK-TM4C1294XL Firmware
* (C) 2014, John Pham, George Mason University <[email protected]>
*
* Modified from:
* lwIP/src/include/lwip/opt.h
*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* 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: Adam Dunkels <[email protected]>
*
*/
#ifndef __LWIPOPTS_H__
#define __LWIPOPTS_H__
#include "task_prio.h"
//Define optimal byteswap functions
#define LWIP_PLATFORM_BYTESWAP 1
#define LWIP_PLATFORM_HTONL(x) __builtin_bswap32(x)
#define LWIP_PLATFORM_HTONS(x) __builtin_bswap16(x)
/*
* Stellaris/lwIP port options
* Use default options
*/
//#define EMAC_PHY_CONFIG (EMAC_PHY_TYPE_INTERNAL | EMAC_PHY_INT_MDIX_EN | EMAC_PHY_AN_100B_T_FULL_DUPLEX)
//#define PHY_PHYS_ADDR 0
//#define NUM_TX_DESCRIPTORS 24
//#define NUM_RX_DESCRIPTORS 8
//// Required by TI's driver implementation
//#define LWIP_COMPAT_MUTEX 1
// 32 bit stats
#define LWIP_STATS_LARGE 1
/*
-----------------------------------------------
---------- Platform specific locking ----------
-----------------------------------------------
*/
/**
* SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain
* critical regions during buffer allocation, deallocation and memory
* allocation and deallocation.
*/
#define SYS_LIGHTWEIGHT_PROT 1
/**
* NO_SYS==1: Provides VERY minimal functionality. Otherwise,
* use lwIP facilities.
*/
#define NO_SYS 0
/**
* NO_SYS_NO_TIMERS==1: Drop support for sys_timeout when NO_SYS==1
* Mainly for compatibility to old versions.
*/
//#ifndef NO_SYS_NO_TIMERS
//#define NO_SYS_NO_TIMERS 0
//#endif
/**
* MEMCPY: override this if you have a faster implementation at hand than the
* one included in your C library
*/
//#ifndef MEMCPY
//#define MEMCPY(dst,src,len) memcpy(dst,src,len)
//#endif
/**
* SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a
* call to memcpy() if the length is known at compile time and is small.
*/
//#ifndef SMEMCPY
//#define SMEMCPY(dst,src,len) memcpy(dst,src,len)
//#endif
/**
* LWIP_MPU_COMPATIBLE: enables special memory management mechanism
* which makes lwip able to work on MPU (Memory Protection Unit) system
* by not passing stack-pointers to other threads
* (this decreases performance)
*/
//#ifndef LWIP_MPU_COMPATIBLE
//#define LWIP_MPU_COMPATIBLE 0
//#endif
/*
------------------------------------
---------- Memory options ----------
------------------------------------
*/
/**
* MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library
* instead of the lwip internal allocator. Can save code size if you
* already use it.
*/
//#ifndef MEM_LIBC_MALLOC
//#define MEM_LIBC_MALLOC 0
//#endif
/**
* MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator.
* Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution
* speed and usage from interrupts!
*/
//#ifndef MEMP_MEM_MALLOC
//#define MEMP_MEM_MALLOC 0
//#endif
/**
* MEM_ALIGNMENT: should be set to the alignment of the CPU
* 4 byte alignment -> #define MEM_ALIGNMENT 4
* 2 byte alignment -> #define MEM_ALIGNMENT 2
*/
#define MEM_ALIGNMENT 4
/**
* MEM_SIZE: the size of the heap memory. If the application will send
* a lot of data that needs to be copied, this should be set high.
*/
#define MEM_SIZE (32*1024)
/**
* MEMP_SEPARATE_POOLS: if defined to 1, each pool is placed in its own array.
* This can be used to individually change the location of each pool.
* Default is one big array for all pools
*/
//#ifndef MEMP_SEPARATE_POOLS
//#define MEMP_SEPARATE_POOLS 0
//#endif
/**
* MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable
* amount of bytes before and after each memp element in every pool and fills
* it with a prominent default value.
* MEMP_OVERFLOW_CHECK == 0 no checking
* MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed
* MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time
* memp_malloc() or memp_free() is called (useful but slow!)
*/
//#ifndef MEMP_OVERFLOW_CHECK
//#define MEMP_OVERFLOW_CHECK 0
//#endif
/**
* MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make
* sure that there are no cycles in the linked lists.
*/
//#ifndef MEMP_SANITY_CHECK
//#define MEMP_SANITY_CHECK 0
//#endif
/**
* MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set
* of memory pools of various sizes. When mem_malloc is called, an element of
* the smallest pool that can provide the length needed is returned.
* To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled.
*/
//#ifndef MEM_USE_POOLS
//#define MEM_USE_POOLS 0
//#endif
/**
* MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next
* bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more
* reliable. */
//#ifndef MEM_USE_POOLS_TRY_BIGGER_POOL
//#define MEM_USE_POOLS_TRY_BIGGER_POOL 0
//#endif
/**
* MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h
* that defines additional pools beyond the "standard" ones required
* by lwIP. If you set this to 1, you must have lwippools.h in your
* include path somewhere.
*/
//#ifndef MEMP_USE_CUSTOM_POOLS
//#define MEMP_USE_CUSTOM_POOLS 0
//#endif
/**
* Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from
* interrupt context (or another context that doesn't allow waiting for a
* semaphore).
* If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT,
* while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs
* with each loop so that mem_free can run.
*
* ATTENTION: As you can see from the above description, this leads to dis-/
* enabling interrupts often, which can be slow! Also, on low memory, mem_malloc
* can need longer.
*
* If you don't want that, at least for NO_SYS=0, you can still use the following
* functions to enqueue a deallocation call which then runs in the tcpip_thread
* context:
* - pbuf_free_callback(p);
* - mem_free_callback(m);
*/
//#ifndef LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT
//#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0
//#endif
/*
------------------------------------------------
---------- Internal Memory Pool Sizes ----------
------------------------------------------------
*/
/**
* MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).
* If the application sends a lot of data out of ROM (or other static memory),
* this should be set high.
*/
#define MEMP_NUM_PBUF 16
/**
* MEMP_NUM_RAW_PCB: Number of raw connection PCBs
* (requires the LWIP_RAW option)
*/
//#ifndef MEMP_NUM_RAW_PCB
//#define MEMP_NUM_RAW_PCB 4
//#endif
/**
* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
* per active UDP "connection".
* (requires the LWIP_UDP option)
*/
//#ifndef MEMP_NUM_UDP_PCB
//#define MEMP_NUM_UDP_PCB 4
//#endif
/**
* MEMP_NUM_TCP_PCB: the number of simultaneously active TCP connections.
* (requires the LWIP_TCP option)
*/
//#ifndef MEMP_NUM_TCP_PCB
//#define MEMP_NUM_TCP_PCB 5
//#endif
/**
* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.
* (requires the LWIP_TCP option)
*/
//#ifndef MEMP_NUM_TCP_PCB_LISTEN
//#define MEMP_NUM_TCP_PCB_LISTEN 8
//#endif
/**
* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
* (requires the LWIP_TCP option)
*/
#define MEMP_NUM_TCP_SEG 16
/**
* MEMP_NUM_REASSDATA: the number of IP packets simultaneously queued for
* reassembly (whole packets, not fragments!)
*/
//#ifndef MEMP_NUM_REASSDATA
//#define MEMP_NUM_REASSDATA 5
//#endif
/**
* MEMP_NUM_FRAG_PBUF: the number of IP fragments simultaneously sent
* (fragments, not whole packets!).
* This is only used with IP_FRAG_USES_STATIC_BUF==0 and
* LWIP_NETIF_TX_SINGLE_PBUF==0 and only has to be > 1 with DMA-enabled MACs
* where the packet is not yet sent when netif->output returns.
*/
//#ifndef MEMP_NUM_FRAG_PBUF
//#define MEMP_NUM_FRAG_PBUF 15
//#endif
/**
* MEMP_NUM_ARP_QUEUE: the number of simultaneously queued outgoing
* packets (pbufs) that are waiting for an ARP request (to resolve
* their destination address) to finish.
* (requires the ARP_QUEUEING option)
*/
//#ifndef MEMP_NUM_ARP_QUEUE
//#define MEMP_NUM_ARP_QUEUE 30
//#endif
/**
* MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces
* can be members at the same time (one per netif - allsystems group -, plus one
* per netif membership).
* (requires the LWIP_IGMP option)
*/
//#ifndef MEMP_NUM_IGMP_GROUP
//#define MEMP_NUM_IGMP_GROUP 8
//#endif
/**
* MEMP_NUM_SYS_TIMEOUT: the number of simultaneously active timeouts.
* The default number of timeouts is calculated here for all enabled modules.
* The formula expects settings to be either '0' or '1'.
*/
//#ifndef MEMP_NUM_SYS_TIMEOUT
//#define MEMP_NUM_SYS_TIMEOUT (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT + (LWIP_IPV6 ? (1 + LWIP_IPV6_REASS + LWIP_IPV6_MLD) : 0))
//#endif
/**
* MEMP_NUM_NETBUF: the number of struct netbufs.
* (only needed if you use the sequential API, like api_lib.c)
*/
//#ifndef MEMP_NUM_NETBUF
//#define MEMP_NUM_NETBUF 2
//#endif
/**
* MEMP_NUM_NETCONN: the number of struct netconns.
* (only needed if you use the sequential API, like api_lib.c)
*/
//#ifndef MEMP_NUM_NETCONN
//#define MEMP_NUM_NETCONN 4
//#endif
/**
* MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
* for callback/timeout API communication.
* (only needed if you use tcpip.c)
*/
//#ifndef MEMP_NUM_TCPIP_MSG_API
//#define MEMP_NUM_TCPIP_MSG_API 8
//#endif
/**
* MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
* for incoming packets.
* (only needed if you use tcpip.c)
*/
//#ifndef MEMP_NUM_TCPIP_MSG_INPKT
//#define MEMP_NUM_TCPIP_MSG_INPKT 8
//#endif
/**
* MEMP_NUM_SNMP_NODE: the number of leafs in the SNMP tree.
*/
//#ifndef MEMP_NUM_SNMP_NODE
//#define MEMP_NUM_SNMP_NODE 50
//#endif
/**
* MEMP_NUM_SNMP_ROOTNODE: the number of branches in the SNMP tree.
* Every branch has one leaf (MEMP_NUM_SNMP_NODE) at least!
*/
//#ifndef MEMP_NUM_SNMP_ROOTNODE
//#define MEMP_NUM_SNMP_ROOTNODE 30
//#endif
/**
* MEMP_NUM_SNMP_VARBIND: the number of concurrent requests (does not have to
* be changed normally) - 2 of these are used per request (1 for input,
* 1 for output)
*/
//#ifndef MEMP_NUM_SNMP_VARBIND
//#define MEMP_NUM_SNMP_VARBIND 2
//#endif
/**
* MEMP_NUM_SNMP_VALUE: the number of OID or values concurrently used
* (does not have to be changed normally) - 3 of these are used per request
* (1 for the value read and 2 for OIDs - input and output)
*/
//#ifndef MEMP_NUM_SNMP_VALUE
//#define MEMP_NUM_SNMP_VALUE 3
//#endif
/**
* MEMP_NUM_NETDB: the number of concurrently running lwip_addrinfo() calls
* (before freeing the corresponding memory using lwip_freeaddrinfo()).
*/
//#ifndef MEMP_NUM_NETDB
//#define MEMP_NUM_NETDB 1
//#endif
/**
* MEMP_NUM_LOCALHOSTLIST: the number of host entries in the local host list
* if DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1.
*/
//#ifndef MEMP_NUM_LOCALHOSTLIST
//#define MEMP_NUM_LOCALHOSTLIST 1
//#endif
/**
* MEMP_NUM_PPP_PCB: the number of simultaneously active PPP
* connections (requires the PPP_SUPPORT option)
*/
//#ifndef MEMP_NUM_PPP_PCB
//#define MEMP_NUM_PPP_PCB 1
//#endif
/**
* MEMP_NUM_PPPOE_INTERFACES: the number of concurrently active PPPoE
* interfaces (only used with PPPOE_SUPPORT==1)
*/
//#ifndef MEMP_NUM_PPPOE_INTERFACES
//#define MEMP_NUM_PPPOE_INTERFACES 1
//#endif
/**
* MEMP_NUM_PPPOL2TP_INTERFACES: the number of concurrently active PPPoL2TP
* interfaces (only used with PPPOL2TP_SUPPORT==1)
*/
//#ifndef MEMP_NUM_PPPOL2TP_INTERFACES
//#define MEMP_NUM_PPPOL2TP_INTERFACES 1
//#endif
/**
* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
*/
#define PBUF_POOL_SIZE 16
/** MEMP_NUM_API_MSG: the number of concurrently active calls to various
* socket, netconn, and tcpip functions
*/
//#ifndef MEMP_NUM_API_MSG
//#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API
//#endif
/** MEMP_NUM_DNS_API_MSG: the number of concurrently active calls to netconn_gethostbyname
*/
//#ifndef MEMP_NUM_DNS_API_MSG
//#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API
//#endif
/** MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA: the number of concurrently active calls
* to getsockopt/setsockopt
*/
//#ifndef MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA
//#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API
//#endif
/** MEMP_NUM_NETIFAPI_MSG: the number of concurrently active calls to the
* netifapi functions
*/
//#ifndef MEMP_NUM_NETIFAPI_MSG
//#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API
//#endif
/*
---------------------------------
---------- ARP options ----------
---------------------------------
*/
/**
* LWIP_ARP==1: Enable ARP functionality.
*/
//#ifndef LWIP_ARP
//#define LWIP_ARP 1
//#endif
/**
* ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached.
*/
//#ifndef ARP_TABLE_SIZE
//#define ARP_TABLE_SIZE 10
//#endif
/**
* ARP_QUEUEING==1: Multiple outgoing packets are queued during hardware address
* resolution. By default, only the most recent packet is queued per IP address.
* This is sufficient for most protocols and mainly reduces TCP connection
* startup time. Set this to 1 if you know your application sends more than one
* packet in a row to an IP address that is not in the ARP cache.
*/
//#ifndef ARP_QUEUEING
//#define ARP_QUEUEING 0
//#endif
/** The maximum number of packets which may be queued for each
* unresolved address by other network layers. Defaults to 3, 0 means disabled.
* Old packets are dropped, new packets are queued.
*/
//#ifndef ARP_QUEUE_LEN
//#define ARP_QUEUE_LEN 3
//#endif
/**
* ETHARP_TRUST_IP_MAC==1: Incoming IP packets cause the ARP table to be
* updated with the source MAC and IP addresses supplied in the packet.
* You may want to disable this if you do not trust LAN peers to have the
* correct addresses, or as a limited approach to attempt to handle
* spoofing. If disabled, lwIP will need to make a new ARP request if
* the peer is not already in the ARP table, adding a little latency.
* The peer *is* in the ARP table if it requested our address before.
* Also notice that this slows down input processing of every IP packet!
*/
//#ifndef ETHARP_TRUST_IP_MAC
//#define ETHARP_TRUST_IP_MAC 0
//#endif
/**
* ETHARP_SUPPORT_VLAN==1: support receiving and sending ethernet packets with
* VLAN header. See the description of LWIP_HOOK_VLAN_CHECK and
* LWIP_HOOK_VLAN_SET hooks to check/set VLAN headers.
* Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check.
* If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted.
* If ETHARP_VLAN_CHECK is not defined, all traffic is accepted.
* Alternatively, define a function/define ETHARP_VLAN_CHECK_FN(eth_hdr, vlan)
* that returns 1 to accept a packet or 0 to drop a packet.
*/
//#ifndef ETHARP_SUPPORT_VLAN
//#define ETHARP_SUPPORT_VLAN 0
//#endif
/** LWIP_ETHERNET==1: enable ethernet support for PPPoE even though ARP
* might be disabled
*/
//#ifndef LWIP_ETHERNET
//#define LWIP_ETHERNET (LWIP_ARP || PPPOE_SUPPORT)
//#endif
/** ETH_PAD_SIZE: number of bytes added before the ethernet header to ensure
* alignment of payload after that header. Since the header is 14 bytes long,
* without this padding e.g. addresses in the IP header will not be aligned
* on a 32-bit boundary, so setting this to 2 can speed up 32-bit-platforms.
*/
//#ifndef ETH_PAD_SIZE
//#define ETH_PAD_SIZE 0
//#endif
/** ETHARP_SUPPORT_STATIC_ENTRIES==1: enable code to support static ARP table
* entries (using etharp_add_static_entry/etharp_remove_static_entry).
*/
//#ifndef ETHARP_SUPPORT_STATIC_ENTRIES
//#define ETHARP_SUPPORT_STATIC_ENTRIES 0
//#endif
/*
--------------------------------
---------- IP options ----------
--------------------------------
*/
/**
* IP_FORWARD==1: Enables the ability to forward IP packets across network
* interfaces. If you are going to run lwIP on a device with only one network
* interface, define this to 0.
*/
//#ifndef IP_FORWARD
//#define IP_FORWARD 0
//#endif
/**
* IP_OPTIONS_ALLOWED: Defines the behavior for IP options.
* IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped.
* IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed).
*/
//#ifndef IP_OPTIONS_ALLOWED
//#define IP_OPTIONS_ALLOWED 1
//#endif
/**
* IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that
* this option does not affect outgoing packet sizes, which can be controlled
* via IP_FRAG.
*/
#define IP_REASSEMBLY 0
/**
* IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note
* that this option does not affect incoming packet sizes, which can be
* controlled via IP_REASSEMBLY.
*/
#define IP_FRAG 0
/**
* IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally)
* a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived
* in this time, the whole packet is discarded.
*/
//#ifndef IP_REASS_MAXAGE
//#define IP_REASS_MAXAGE 3
//#endif
/**
* IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled.
* Since the received pbufs are enqueued, be sure to configure
* PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive
* packets even if the maximum amount of fragments is enqueued for reassembly!
*/
//#ifndef IP_REASS_MAX_PBUFS
//#define IP_REASS_MAX_PBUFS 10
//#endif
/**
* IP_FRAG_USES_STATIC_BUF==1: Use a static MTU-sized buffer for IP
* fragmentation. Otherwise pbufs are allocated and reference the original
* packet data to be fragmented (or with LWIP_NETIF_TX_SINGLE_PBUF==1,
* new PBUF_RAM pbufs are used for fragments).
* ATTENTION: IP_FRAG_USES_STATIC_BUF==1 may not be used for DMA-enabled MACs!
*/
//#ifndef IP_FRAG_USES_STATIC_BUF
//#define IP_FRAG_USES_STATIC_BUF 0
//#endif
/**
* IP_FRAG_MAX_MTU: Assumed max MTU on any interface for IP frag buffer
* (requires IP_FRAG_USES_STATIC_BUF==1)
*/
//#if IP_FRAG_USES_STATIC_BUF && !defined(IP_FRAG_MAX_MTU)
//#define IP_FRAG_MAX_MTU 1500
//#endif
/**
* IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers.
*/
//#ifndef IP_DEFAULT_TTL
//#define IP_DEFAULT_TTL 255
//#endif
/**
* IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast
* filter per pcb on udp and raw send operations. To enable broadcast filter
* on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1.
*/
//#ifndef IP_SOF_BROADCAST
//#define IP_SOF_BROADCAST 0
//#endif
/**
* IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast
* filter on recv operations.
*/
//#ifndef IP_SOF_BROADCAST_RECV
//#define IP_SOF_BROADCAST_RECV 0
//#endif
/**
* IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1: allow ip_forward() to send packets back
* out on the netif where it was received. This should only be used for
* wireless networks.
* ATTENTION: When this is 1, make sure your netif driver correctly marks incoming
* link-layer-broadcast/multicast packets as such using the corresponding pbuf flags!
*/
//#ifndef IP_FORWARD_ALLOW_TX_ON_RX_NETIF
//#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0
//#endif
/**
* LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS==1: randomize the local port for the first
* local TCP/UDP pcb (default==0). This can prevent creating predictable port
* numbers after booting a device.
*/
//#ifndef LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS
//#define LWIP_RANDOMIZE_INITIAL_LOCAL_PORTS 0
//#endif
/*
----------------------------------
---------- ICMP options ----------
----------------------------------
*/
/**
* LWIP_ICMP==1: Enable ICMP module inside the IP stack.
* Be careful, disable that make your product non-compliant to RFC1122
*/
//#ifndef LWIP_ICMP
//#define LWIP_ICMP 1
//#endif
/**
* ICMP_TTL: Default value for Time-To-Live used by ICMP packets.
*/
//#ifndef ICMP_TTL
//#define ICMP_TTL (IP_DEFAULT_TTL)
//#endif
/**
* LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)
*/
//#ifndef LWIP_BROADCAST_PING
//#define LWIP_BROADCAST_PING 0
//#endif
/**
* LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)
*/
//#ifndef LWIP_MULTICAST_PING
//#define LWIP_MULTICAST_PING 0
//#endif
/*
---------------------------------
---------- RAW options ----------
---------------------------------
*/
/**
* LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
*/
//#ifndef LWIP_RAW
//#define LWIP_RAW 1
//#endif
/**
* LWIP_RAW==1: Enable application layer to hook into the IP layer itself.
*/
//#ifndef RAW_TTL
//#define RAW_TTL (IP_DEFAULT_TTL)
//#endif
/*
----------------------------------
---------- DHCP options ----------
----------------------------------
*/
/**
* LWIP_DHCP==1: Enable DHCP module.
*/
#define LWIP_DHCP 1
/**
* DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address.
*/
#ifndef DHCP_DOES_ARP_CHECK
#define DHCP_DOES_ARP_CHECK ((LWIP_DHCP) && (LWIP_ARP))
#endif
/**
* LWIP_DHCP_CHECK_LINK_UP==1: dhcp_start() only really starts if the netif has
* NETIF_FLAG_LINK_UP set in its flags. As this is only an optimization and
* netif drivers might not set this flag, the default is off. If enabled,
* netif_set_link_up() must be called to continue dhcp starting.
*/
#ifndef LWIP_DHCP_CHECK_LINK_UP
#define LWIP_DHCP_CHECK_LINK_UP 0
#endif
/**
* LWIP_DHCP_BOOTP_FILE==1: Store offered_si_addr and boot_file_name.
*/
//#ifndef LWIP_DHCP_BOOTP_FILE
//#define LWIP_DHCP_BOOTP_FILE 0
//#endif
/*
------------------------------------
---------- AUTOIP options ----------
------------------------------------
*/
/**
* LWIP_AUTOIP==1: Enable AUTOIP module.
*/
//#ifndef LWIP_AUTOIP
//#define LWIP_AUTOIP 0
//#endif
/**
* LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on
* the same interface at the same time.
*/
//#ifndef LWIP_DHCP_AUTOIP_COOP
//#define LWIP_DHCP_AUTOIP_COOP 0
//#endif
/**
* LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes
* that should be sent before falling back on AUTOIP. This can be set
* as low as 1 to get an AutoIP address very quickly, but you should
* be prepared to handle a changing IP address when DHCP overrides
* AutoIP.
*/
//#ifndef LWIP_DHCP_AUTOIP_COOP_TRIES
//#define LWIP_DHCP_AUTOIP_COOP_TRIES 9
//#endif
/*
----------------------------------
---------- SNMP options ----------
----------------------------------
*/
/**
* LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP
* transport.
*/
//#ifndef LWIP_SNMP
//#define LWIP_SNMP 0
//#endif
/**
* SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
* allow. At least one request buffer is required.
* Does not have to be changed unless external MIBs answer request asynchronously
*/
//#ifndef SNMP_CONCURRENT_REQUESTS
//#define SNMP_CONCURRENT_REQUESTS 1
//#endif
/**
* SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap
* destination is required
*/
//#ifndef SNMP_TRAP_DESTINATIONS
//#define SNMP_TRAP_DESTINATIONS 1
//#endif
/**
* SNMP_PRIVATE_MIB:
* When using a private MIB, you have to create a file 'private_mib.h' that contains
* a 'struct mib_array_node mib_private' which contains your MIB.
*/
//#ifndef SNMP_PRIVATE_MIB
//#define SNMP_PRIVATE_MIB 0
//#endif
/**
* Only allow SNMP write actions that are 'safe' (e.g. disabeling netifs is not
* a safe action and disabled when SNMP_SAFE_REQUESTS = 1).
* Unsafe requests are disabled by default!
*/
//#ifndef SNMP_SAFE_REQUESTS
//#define SNMP_SAFE_REQUESTS 1
//#endif
/**
* The maximum length of strings used. This affects the size of
* MEMP_SNMP_VALUE elements.
*/
//#ifndef SNMP_MAX_OCTET_STRING_LEN
//#define SNMP_MAX_OCTET_STRING_LEN 127
//#endif
/**
* The maximum depth of the SNMP tree.
* With private MIBs enabled, this depends on your MIB!
* This affects the size of MEMP_SNMP_VALUE elements.
*/
//#ifndef SNMP_MAX_TREE_DEPTH
//#define SNMP_MAX_TREE_DEPTH 15
//#endif
/**
* The size of the MEMP_SNMP_VALUE elements, normally calculated from
* SNMP_MAX_OCTET_STRING_LEN and SNMP_MAX_TREE_DEPTH.
*/
//#ifndef SNMP_MAX_VALUE_SIZE
//#define SNMP_MAX_VALUE_SIZE LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN)+1, sizeof(s32_t)*(SNMP_MAX_TREE_DEPTH))
//#endif
/*
----------------------------------
---------- IGMP options ----------
----------------------------------
*/
/**
* LWIP_IGMP==1: Turn on IGMP module.
*/
//#ifndef LWIP_IGMP
//#define LWIP_IGMP 0
//#endif
/*
----------------------------------
---------- DNS options -----------
----------------------------------
*/
/**
* LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS
* transport.
*/
//#ifndef LWIP_DNS
//#define LWIP_DNS 0
//#endif
/** DNS maximum number of entries to maintain locally. */
//#ifndef DNS_TABLE_SIZE
//#define DNS_TABLE_SIZE 4
//#endif
/** DNS maximum host name length supported in the name table. */
//#ifndef DNS_MAX_NAME_LENGTH
//#define DNS_MAX_NAME_LENGTH 256
//#endif
/** The maximum of DNS servers */
//#ifndef DNS_MAX_SERVERS
//#define DNS_MAX_SERVERS 2
//#endif
/** DNS do a name checking between the query and the response. */
//#ifndef DNS_DOES_NAME_CHECK
//#define DNS_DOES_NAME_CHECK 1
//#endif
/** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled,
* you have to define
* #define DNS_LOCAL_HOSTLIST_INIT {{"host1", 0x123}, {"host2", 0x234}}
* (an array of structs name/address, where address is an u32_t in network
* byte order).
*
* Instead, you can also use an external function:
* #define DNS_LOOKUP_LOCAL_EXTERN(x) extern u32_t my_lookup_function(const char *name)
* that returns the IP address or INADDR_NONE if not found.
*/
//#ifndef DNS_LOCAL_HOSTLIST
//#define DNS_LOCAL_HOSTLIST 0
//#endif /* DNS_LOCAL_HOSTLIST */
/** If this is turned on, the local host-list can be dynamically changed
* at runtime. */
//#ifndef DNS_LOCAL_HOSTLIST_IS_DYNAMIC
//#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0
//#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
/*
---------------------------------
---------- UDP options ----------
---------------------------------
*/
/**
* LWIP_UDP==1: Turn on UDP.
*/
//#ifndef LWIP_UDP
//#define LWIP_UDP 1
//#endif
/**
* LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP)
*/
//#ifndef LWIP_UDPLITE
//#define LWIP_UDPLITE 0
//#endif
/**
* UDP_TTL: Default Time-To-Live value.
*/
//#ifndef UDP_TTL
//#define UDP_TTL (IP_DEFAULT_TTL)
//#endif
/**
* LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf.
*/
//#ifndef LWIP_NETBUF_RECVINFO
//#define LWIP_NETBUF_RECVINFO 0
//#endif
/*
---------------------------------
---------- TCP options ----------
---------------------------------
*/
/**
* LWIP_TCP==1: Turn on TCP.
*/
//#ifndef LWIP_TCP
//#define LWIP_TCP 1
//#endif
/**
* TCP_TTL: Default Time-To-Live value.
*/
//#ifndef TCP_TTL
//#define TCP_TTL (IP_DEFAULT_TTL)
//#endif
/**
* TCP_WND: The size of a TCP window. This must be at least
* (2 * TCP_MSS) for things to work well
*/
//#ifndef TCP_WND