Added lwip.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11768 110e8d01-0319-4d1e-a829-52ad28d1bb01

4 files changed, 2817 insertions, 0 deletions

diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwip.mk b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwip.mk
new file mode 100644
index 000000000..f96cc7983
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwip.mk
@@ -0,0 +1,20 @@
+# List of the required lwIP files.

+LWIPDIR = 	$(CHIBIOS)/ext/lwip/src

+

+# The various blocks of files are outlined in Filelists.mk.

+include $(LWIPDIR)/Filelists.mk

+

+LWBINDSRC = \

+        $(CHIBIOS)/os/various/lwip_bindings/arch/sys_arch.c 

+

+

+# Add blocks of files from Filelists.mk as required for enabled options

+LWSRC = $(COREFILES) $(CORE4FILES) $(APIFILES) $(LWBINDSRC) $(NETIFFILES)

+

+LWINC = \

+        $(CHIBIOS)/os/various/lwip_bindings \

+        $(LWIPDIR)/include

+

+# Shared variables

+ALLCSRC += $(LWSRC)

+ALLINC  += $(LWINC)

diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipopts.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipopts.h
new file mode 100644
index 000000000..99a1c1a6a
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipopts.h
@@ -0,0 +1,2122 @@
+/*

+ * Copyright (c) 2001-2003 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: Simon Goldschmidt

+ *

+ */

+#ifndef LWIP_HDR_LWIPOPTS_H__

+#define LWIP_HDR_LWIPOPTS_H__

+

+/* Fixed settings mandated by the ChibiOS integration.*/

+#include "static_lwipopts.h"

+

+/*

+   -----------------------------------------------

+   ---------- 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.

+ */

+#ifndef SYS_LIGHTWEIGHT_PROT

+#define SYS_LIGHTWEIGHT_PROT            1

+#endif

+

+/**

+ * NO_SYS==1: Provides VERY minimal functionality. Otherwise,

+ * use lwIP facilities.

+ */

+#ifndef NO_SYS

+#define NO_SYS                          0

+#endif

+

+/**

+ * 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

+

+/*

+   ------------------------------------

+   ---------- 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

+ */

+#ifndef MEM_ALIGNMENT

+#define MEM_ALIGNMENT                   4

+#endif

+

+/**

+ * 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.

+ */

+#ifndef MEM_SIZE

+#define MEM_SIZE                        1600

+#endif

+

+/**

+ * 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

+ * inlude 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.

+ */

+#ifndef MEMP_NUM_PBUF

+#define MEMP_NUM_PBUF                   16

+#endif

+

+/**

+ * 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 simulatenously 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)

+ */

+#ifndef MEMP_NUM_TCP_SEG

+#define MEMP_NUM_TCP_SEG                16

+#endif

+

+/**

+ * 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 simulateously 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 et 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 simulateously active timeouts.

+ * (requires NO_SYS==0)

+ * 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)

+#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_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

+

+/**

+ * PBUF_POOL_SIZE: the number of buffers in the pbuf pool.

+ */

+#ifndef PBUF_POOL_SIZE

+#define PBUF_POOL_SIZE                  16

+#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                  20

+#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

+

+/**

+ * 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 ethernet packets with VLAN header.

+ * 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.

+ */

+#ifndef IP_REASSEMBLY

+#define IP_REASSEMBLY                   1

+#endif

+

+/**

+ * 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.

+ */

+#ifndef IP_FRAG

+#define IP_FRAG                         1

+#endif

+

+/**

+ * 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                        0

+#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.

+ */

+#ifndef LWIP_DHCP

+#define LWIP_DHCP                       1

+#endif

+

+/**

+ * 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

+

+/*

+   ------------------------------------

+   ---------- 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 message max. size. Default value is RFC compliant. */

+#ifndef DNS_MSG_SIZE

+#define DNS_MSG_SIZE                    512

+#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

+#define TCP_WND                         (4 * TCP_MSS)

+#endif

+

+/**

+ * TCP_MAXRTX: Maximum number of retransmissions of data segments.

+ */

+#ifndef TCP_MAXRTX

+#define TCP_MAXRTX                      12

+#endif

+

+/**

+ * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments.

+ */

+#ifndef TCP_SYNMAXRTX

+#define TCP_SYNMAXRTX                   6

+#endif

+

+/**

+ * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order.

+ * Define to 0 if your device is low on memory.

+ */

+#ifndef TCP_QUEUE_OOSEQ

+#define TCP_QUEUE_OOSEQ                 (LWIP_TCP)

+#endif

+

+/**

+ * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default,

+ * you might want to increase this.)

+ * For the receive side, this MSS is advertised to the remote side

+ * when opening a connection. For the transmit size, this MSS sets

+ * an upper limit on the MSS advertised by the remote host.

+ */

+#ifndef TCP_MSS

+#define TCP_MSS                         536

+#endif

+

+/**

+ * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really

+ * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which

+ * reflects the available reassembly buffer size at the remote host) and the

+ * largest size permitted by the IP layer" (RFC 1122)

+ * Setting this to 1 enables code that checks TCP_MSS against the MTU of the

+ * netif used for a connection and limits the MSS if it would be too big otherwise.

+ */

+#ifndef TCP_CALCULATE_EFF_SEND_MSS

+#define TCP_CALCULATE_EFF_SEND_MSS      1

+#endif

+

+

+/**

+ * TCP_SND_BUF: TCP sender buffer space (bytes).

+ * To achieve good performance, this should be at least 2 * TCP_MSS.

+ */

+#ifndef TCP_SND_BUF

+#define TCP_SND_BUF                     (2 * TCP_MSS)

+#endif

+

+/**

+ * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least

+ * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work.

+ */

+#ifndef TCP_SND_QUEUELEN

+#define TCP_SND_QUEUELEN                ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))

+#endif

+

+/**

+ * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than

+ * TCP_SND_BUF. It is the amount of space which must be available in the

+ * TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT).

+ */

+#ifndef TCP_SNDLOWAT

+#define TCP_SNDLOWAT                    LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1)

+#endif

+

+/**

+ * TCP_SNDQUEUELOWAT: TCP writable bufs (pbuf count). This must be less

+ * than TCP_SND_QUEUELEN. If the number of pbufs queued on a pcb drops below

+ * this number, select returns writable (combined with TCP_SNDLOWAT).

+ */

+#ifndef TCP_SNDQUEUELOWAT

+#define TCP_SNDQUEUELOWAT               LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5)

+#endif

+

+/**

+ * TCP_OOSEQ_MAX_BYTES: The maximum number of bytes queued on ooseq per pcb.

+ * Default is 0 (no limit). Only valid for TCP_QUEUE_OOSEQ==0.

+ */

+#ifndef TCP_OOSEQ_MAX_BYTES

+#define TCP_OOSEQ_MAX_BYTES             0

+#endif

+

+/**

+ * TCP_OOSEQ_MAX_PBUFS: The maximum number of pbufs queued on ooseq per pcb.

+ * Default is 0 (no limit). Only valid for TCP_QUEUE_OOSEQ==0.

+ */

+#ifndef TCP_OOSEQ_MAX_PBUFS

+#define TCP_OOSEQ_MAX_PBUFS             0

+#endif

+

+/**

+ * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb.

+ */

+#ifndef TCP_LISTEN_BACKLOG

+#define TCP_LISTEN_BACKLOG              0

+#endif

+

+/**

+ * The maximum allowed backlog for TCP listen netconns.

+ * This backlog is used unless another is explicitly specified.

+ * 0xff is the maximum (u8_t).

+ */

+#ifndef TCP_DEFAULT_LISTEN_BACKLOG

+#define TCP_DEFAULT_LISTEN_BACKLOG      0xff

+#endif

+

+/**

+ * TCP_OVERSIZE: The maximum number of bytes that tcp_write may

+ * allocate ahead of time in an attempt to create shorter pbuf chains

+ * for transmission. The meaningful range is 0 to TCP_MSS. Some

+ * suggested values are:

+ *

+ * 0:         Disable oversized allocation. Each tcp_write() allocates a new

+              pbuf (old behaviour).

+ * 1:         Allocate size-aligned pbufs with minimal excess. Use this if your

+ *            scatter-gather DMA requires aligned fragments.

+ * 128:       Limit the pbuf/memory overhead to 20%.

+ * TCP_MSS:   Try to create unfragmented TCP packets.

+ * TCP_MSS/4: Try to create 4 fragments or less per TCP packet.

+ */

+#ifndef TCP_OVERSIZE

+#define TCP_OVERSIZE                    TCP_MSS

+#endif

+

+/**

+ * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option.

+ */

+#ifndef LWIP_TCP_TIMESTAMPS

+#define LWIP_TCP_TIMESTAMPS             0

+#endif

+

+/**

+ * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an

+ * explicit window update

+ */

+#ifndef TCP_WND_UPDATE_THRESHOLD

+#define TCP_WND_UPDATE_THRESHOLD   (TCP_WND / 4)

+#endif

+

+/**

+ * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1.

+ *     LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all

+ *         events (accept, sent, etc) that happen in the system.

+ *     LWIP_CALLBACK_API==1: The PCB callback function is called directly

+ *         for the event. This is the default.

+ */

+#if !defined(LWIP_EVENT_API) && !defined(LWIP_CALLBACK_API)

+#define LWIP_EVENT_API                  0

+#define LWIP_CALLBACK_API               1

+#endif

+

+

+/*

+   ----------------------------------

+   ---------- Pbuf options ----------

+   ----------------------------------

+*/

+/**

+ * PBUF_LINK_HLEN: the number of bytes that should be allocated for a

+ * link level header. The default is 14, the standard value for

+ * Ethernet.

+ */

+#ifndef PBUF_LINK_HLEN

+#define PBUF_LINK_HLEN                  (14 + ETH_PAD_SIZE)

+#endif

+

+/**

+ * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is

+ * designed to accomodate single full size TCP frame in one pbuf, including

+ * TCP_MSS, IP header, and link header.

+ */

+#ifndef PBUF_POOL_BUFSIZE

+#define PBUF_POOL_BUFSIZE               LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)

+#endif

+

+/*

+   ------------------------------------------------

+   ---------- Network Interfaces options ----------

+   ------------------------------------------------

+*/

+/**

+ * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname

+ * field.

+ */

+#ifndef LWIP_NETIF_HOSTNAME

+#define LWIP_NETIF_HOSTNAME             0

+#endif

+

+/**

+ * LWIP_NETIF_API==1: Support netif api (in netifapi.c)

+ */

+#ifndef LWIP_NETIF_API

+#define LWIP_NETIF_API                  0

+#endif

+

+/**

+ * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface

+ * changes its up/down status (i.e., due to DHCP IP acquistion)

+ */

+#ifndef LWIP_NETIF_STATUS_CALLBACK

+#define LWIP_NETIF_STATUS_CALLBACK      0

+#endif

+

+/**

+ * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface

+ * whenever the link changes (i.e., link down)

+ */

+#ifndef LWIP_NETIF_LINK_CALLBACK

+#define LWIP_NETIF_LINK_CALLBACK        0

+#endif

+

+/**

+ * LWIP_NETIF_REMOVE_CALLBACK==1: Support a callback function that is called

+ * when a netif has been removed

+ */

+#ifndef LWIP_NETIF_REMOVE_CALLBACK

+#define LWIP_NETIF_REMOVE_CALLBACK      0

+#endif

+

+/**

+ * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table

+ * indices) in struct netif. TCP and UDP can make use of this to prevent

+ * scanning the ARP table for every sent packet. While this is faster for big

+ * ARP tables or many concurrent connections, it might be counterproductive

+ * if you have a tiny ARP table or if there never are concurrent connections.

+ */

+#ifndef LWIP_NETIF_HWADDRHINT

+#define LWIP_NETIF_HWADDRHINT           0

+#endif

+

+/**

+ * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP

+ * address equal to the netif IP address, looping them back up the stack.

+ */

+#ifndef LWIP_NETIF_LOOPBACK

+#define LWIP_NETIF_LOOPBACK             0

+#endif

+

+/**

+ * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback

+ * sending for each netif (0 = disabled)

+ */

+#ifndef LWIP_LOOPBACK_MAX_PBUFS

+#define LWIP_LOOPBACK_MAX_PBUFS         0

+#endif

+

+/**

+ * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in

+ * the system, as netifs must change how they behave depending on this setting

+ * for the LWIP_NETIF_LOOPBACK option to work.

+ * Setting this is needed to avoid reentering non-reentrant functions like

+ * tcp_input().

+ *    LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a

+ *       multithreaded environment like tcpip.c. In this case, netif->input()

+ *       is called directly.

+ *    LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup.

+ *       The packets are put on a list and netif_poll() must be called in

+ *       the main application loop.

+ */

+#ifndef LWIP_NETIF_LOOPBACK_MULTITHREADING

+#define LWIP_NETIF_LOOPBACK_MULTITHREADING    (!NO_SYS)

+#endif

+

+/**

+ * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP tries to put all data

+ * to be sent into one single pbuf. This is for compatibility with DMA-enabled

+ * MACs that do not support scatter-gather.

+ * Beware that this might involve CPU-memcpy before transmitting that would not

+ * be needed without this flag! Use this only if you need to!

+ *

+ * @todo: TCP and IP-frag do not work with this, yet:

+ */

+#ifndef LWIP_NETIF_TX_SINGLE_PBUF

+#define LWIP_NETIF_TX_SINGLE_PBUF             0

+#endif /* LWIP_NETIF_TX_SINGLE_PBUF */

+

+/*

+   ------------------------------------

+   ---------- LOOPIF options ----------

+   ------------------------------------

+*/

+/**

+ * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c

+ */

+#ifndef LWIP_HAVE_LOOPIF

+#define LWIP_HAVE_LOOPIF                0

+#endif

+

+/*

+   ------------------------------------

+   ---------- SLIPIF options ----------

+   ------------------------------------

+*/

+/**

+ * LWIP_HAVE_SLIPIF==1: Support slip interface and slipif.c

+ */

+#ifndef LWIP_HAVE_SLIPIF

+#define LWIP_HAVE_SLIPIF                0

+#endif

+

+/*

+   ------------------------------------

+   ---------- Thread options ----------

+   ------------------------------------

+*/

+/**

+ * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread.

+ */

+#ifndef TCPIP_THREAD_NAME

+#define TCPIP_THREAD_NAME              "tcpip_thread"

+#endif

+

+/**

+ * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread.

+ * The stack size value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef TCPIP_THREAD_STACKSIZE

+#define TCPIP_THREAD_STACKSIZE          1024

+#endif

+

+/**

+ * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages

+ * The queue size value itself is platform-dependent, but is passed to

+ * sys_mbox_new() when tcpip_init is called.

+ */

+#ifndef TCPIP_MBOX_SIZE

+#define TCPIP_MBOX_SIZE                 MEMP_NUM_PBUF

+#endif

+

+/**

+ * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread.

+ */

+#ifndef SLIPIF_THREAD_NAME

+#define SLIPIF_THREAD_NAME             "slipif_loop"

+#endif

+

+/**

+ * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread.

+ * The stack size value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef SLIPIF_THREAD_STACKSIZE

+#define SLIPIF_THREAD_STACKSIZE         1024

+#endif

+

+/**

+ * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread.

+ * The priority value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef SLIPIF_THREAD_PRIO

+#define SLIPIF_THREAD_PRIO              (LOWPRIO + 1)

+#endif

+

+/**

+ * PPP_THREAD_NAME: The name assigned to the pppInputThread.

+ */

+#ifndef PPP_THREAD_NAME

+#define PPP_THREAD_NAME                "pppInputThread"

+#endif

+

+/**

+ * PPP_THREAD_STACKSIZE: The stack size used by the pppInputThread.

+ * The stack size value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef PPP_THREAD_STACKSIZE

+#define PPP_THREAD_STACKSIZE            1024

+#endif

+

+/**

+ * PPP_THREAD_PRIO: The priority assigned to the pppInputThread.

+ * The priority value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef PPP_THREAD_PRIO

+#define PPP_THREAD_PRIO                 (LOWPRIO + 1)

+#endif

+

+/**

+ * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread.

+ */

+#ifndef DEFAULT_THREAD_NAME

+#define DEFAULT_THREAD_NAME            "lwIP"

+#endif

+

+/**

+ * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread.

+ * The stack size value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef DEFAULT_THREAD_STACKSIZE

+#define DEFAULT_THREAD_STACKSIZE        4096

+#endif

+

+/**

+ * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread.

+ * The priority value itself is platform-dependent, but is passed to

+ * sys_thread_new() when the thread is created.

+ */

+#ifndef DEFAULT_THREAD_PRIO

+#define DEFAULT_THREAD_PRIO             (LOWPRIO + 1)

+#endif

+

+/**

+ * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a

+ * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed

+ * to sys_mbox_new() when the recvmbox is created.

+ */

+#ifndef DEFAULT_RAW_RECVMBOX_SIZE

+#define DEFAULT_RAW_RECVMBOX_SIZE       4

+#endif

+

+/**

+ * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a

+ * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed

+ * to sys_mbox_new() when the recvmbox is created.

+ */

+#ifndef DEFAULT_UDP_RECVMBOX_SIZE

+#define DEFAULT_UDP_RECVMBOX_SIZE       4

+#endif

+

+/**

+ * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a

+ * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed

+ * to sys_mbox_new() when the recvmbox is created.

+ */

+#ifndef DEFAULT_TCP_RECVMBOX_SIZE

+#define DEFAULT_TCP_RECVMBOX_SIZE       40

+#endif

+

+/**

+ * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections.

+ * The queue size value itself is platform-dependent, but is passed to

+ * sys_mbox_new() when the acceptmbox is created.

+ */

+#ifndef DEFAULT_ACCEPTMBOX_SIZE

+#define DEFAULT_ACCEPTMBOX_SIZE         4

+#endif

+

+/*

+   ----------------------------------------------

+   ---------- Sequential layer options ----------

+   ----------------------------------------------

+*/

+/**

+ * LWIP_TCPIP_CORE_LOCKING: (EXPERIMENTAL!)

+ * Don't use it if you're not an active lwIP project member

+ */

+#ifndef LWIP_TCPIP_CORE_LOCKING

+#define LWIP_TCPIP_CORE_LOCKING         0

+#endif

+

+/**

+ * LWIP_TCPIP_CORE_LOCKING_INPUT: (EXPERIMENTAL!)

+ * Don't use it if you're not an active lwIP project member

+ */

+#ifndef LWIP_TCPIP_CORE_LOCKING_INPUT

+#define LWIP_TCPIP_CORE_LOCKING_INPUT   0

+#endif

+

+/**

+ * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)

+ */

+#ifndef LWIP_NETCONN

+#define LWIP_NETCONN                    1

+#endif

+

+/** LWIP_TCPIP_TIMEOUT==1: Enable tcpip_timeout/tcpip_untimeout tod create

+ * timers running in tcpip_thread from another thread.

+ */

+#ifndef LWIP_TCPIP_TIMEOUT

+#define LWIP_TCPIP_TIMEOUT              1

+#endif

+

+/*

+   ------------------------------------

+   ---------- Socket options ----------

+   ------------------------------------

+*/

+/**

+ * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)

+ */

+#ifndef LWIP_SOCKET

+#define LWIP_SOCKET                     1

+#endif

+

+/**

+ * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names.

+ * (only used if you use sockets.c)

+ */

+#ifndef LWIP_COMPAT_SOCKETS

+#define LWIP_COMPAT_SOCKETS             1

+#endif

+

+/**

+ * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names.

+ * Disable this option if you use a POSIX operating system that uses the same

+ * names (read, write & close). (only used if you use sockets.c)

+ */

+#ifndef LWIP_POSIX_SOCKETS_IO_NAMES

+#define LWIP_POSIX_SOCKETS_IO_NAMES     1

+#endif

+

+/**

+ * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT

+ * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set

+ * in seconds. (does not require sockets.c, and will affect tcp.c)

+ */

+#ifndef LWIP_TCP_KEEPALIVE

+#define LWIP_TCP_KEEPALIVE              0

+#endif

+

+/**

+ * LWIP_SO_SNDTIMEO==1: Enable send timeout for sockets/netconns and

+ * SO_SNDTIMEO processing.

+ */

+#ifndef LWIP_SO_SNDTIMEO

+#define LWIP_SO_SNDTIMEO                0

+#endif

+

+/**

+ * LWIP_SO_RCVTIMEO==1: Enable receive timeout for sockets/netconns and

+ * SO_RCVTIMEO processing.

+ */

+#ifndef LWIP_SO_RCVTIMEO

+#define LWIP_SO_RCVTIMEO                0

+#endif

+

+/**

+ * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing.

+ */

+#ifndef LWIP_SO_RCVBUF

+#define LWIP_SO_RCVBUF                  0

+#endif

+

+/**

+ * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize.

+ */

+#ifndef RECV_BUFSIZE_DEFAULT

+#define RECV_BUFSIZE_DEFAULT            INT_MAX

+#endif

+

+/**

+ * SO_REUSE==1: Enable SO_REUSEADDR option.

+ */

+#ifndef SO_REUSE

+#define SO_REUSE                        0

+#endif

+

+/**

+ * SO_REUSE_RXTOALL==1: Pass a copy of incoming broadcast/multicast packets

+ * to all local matches if SO_REUSEADDR is turned on.

+ * WARNING: Adds a memcpy for every packet if passing to more than one pcb!

+ */

+#ifndef SO_REUSE_RXTOALL

+#define SO_REUSE_RXTOALL                0

+#endif

+

+/*

+   ----------------------------------------

+   ---------- Statistics options ----------

+   ----------------------------------------

+*/

+/**

+ * LWIP_STATS==1: Enable statistics collection in lwip_stats.

+ */

+#ifndef LWIP_STATS

+#define LWIP_STATS                      1

+#endif

+

+#if LWIP_STATS

+

+/**

+ * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions.

+ */

+#ifndef LWIP_STATS_DISPLAY

+#define LWIP_STATS_DISPLAY              0

+#endif

+

+/**

+ * LINK_STATS==1: Enable link stats.

+ */

+#ifndef LINK_STATS

+#define LINK_STATS                      1

+#endif

+

+/**

+ * ETHARP_STATS==1: Enable etharp stats.

+ */

+#ifndef ETHARP_STATS

+#define ETHARP_STATS                    (LWIP_ARP)

+#endif

+

+/**

+ * IP_STATS==1: Enable IP stats.

+ */

+#ifndef IP_STATS

+#define IP_STATS                        1

+#endif

+

+/**

+ * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is

+ * on if using either frag or reass.

+ */

+#ifndef IPFRAG_STATS

+#define IPFRAG_STATS                    (IP_REASSEMBLY || IP_FRAG)

+#endif

+

+/**

+ * ICMP_STATS==1: Enable ICMP stats.

+ */

+#ifndef ICMP_STATS

+#define ICMP_STATS                      1

+#endif

+

+/**

+ * IGMP_STATS==1: Enable IGMP stats.

+ */

+#ifndef IGMP_STATS

+#define IGMP_STATS                      (LWIP_IGMP)

+#endif

+

+/**

+ * UDP_STATS==1: Enable UDP stats. Default is on if

+ * UDP enabled, otherwise off.

+ */

+#ifndef UDP_STATS

+#define UDP_STATS                       (LWIP_UDP)

+#endif

+

+/**

+ * TCP_STATS==1: Enable TCP stats. Default is on if TCP

+ * enabled, otherwise off.

+ */

+#ifndef TCP_STATS

+#define TCP_STATS                       (LWIP_TCP)

+#endif

+

+/**

+ * MEM_STATS==1: Enable mem.c stats.

+ */

+#ifndef MEM_STATS

+#define MEM_STATS                       ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0))

+#endif

+

+/**

+ * MEMP_STATS==1: Enable memp.c pool stats.

+ */

+#ifndef MEMP_STATS

+#define MEMP_STATS                      (MEMP_MEM_MALLOC == 0)

+#endif

+

+/**

+ * SYS_STATS==1: Enable system stats (sem and mbox counts, etc).

+ */

+#ifndef SYS_STATS

+#define SYS_STATS                       (NO_SYS == 0)

+#endif

+

+#else

+

+#define LINK_STATS                      0

+#define IP_STATS                        0

+#define IPFRAG_STATS                    0

+#define ICMP_STATS                      0

+#define IGMP_STATS                      0

+#define UDP_STATS                       0

+#define TCP_STATS                       0

+#define MEM_STATS                       0

+#define MEMP_STATS                      0

+#define SYS_STATS                       0

+#define LWIP_STATS_DISPLAY              0

+

+#endif /* LWIP_STATS */

+

+/*

+   ---------------------------------

+   ---------- PPP options ----------

+   ---------------------------------

+*/

+/**

+ * PPP_SUPPORT==1: Enable PPP.

+ */

+#ifndef PPP_SUPPORT

+#define PPP_SUPPORT                     0

+#endif

+

+/**

+ * PPPOE_SUPPORT==1: Enable PPP Over Ethernet

+ */

+#ifndef PPPOE_SUPPORT

+#define PPPOE_SUPPORT                   0

+#endif

+

+/**

+ * PPPOS_SUPPORT==1: Enable PPP Over Serial

+ */

+#ifndef PPPOS_SUPPORT

+#define PPPOS_SUPPORT                   PPP_SUPPORT

+#endif

+

+#if PPP_SUPPORT

+

+/**

+ * NUM_PPP: Max PPP sessions.

+ */

+#ifndef NUM_PPP

+#define NUM_PPP                         1

+#endif

+

+/**

+ * PAP_SUPPORT==1: Support PAP.

+ */

+#ifndef PAP_SUPPORT

+#define PAP_SUPPORT                     0

+#endif

+

+/**

+ * CHAP_SUPPORT==1: Support CHAP.

+ */

+#ifndef CHAP_SUPPORT

+#define CHAP_SUPPORT                    0

+#endif

+

+/**

+ * MSCHAP_SUPPORT==1: Support MSCHAP. CURRENTLY NOT SUPPORTED! DO NOT SET!

+ */

+#ifndef MSCHAP_SUPPORT

+#define MSCHAP_SUPPORT                  0

+#endif

+

+/**

+ * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET!

+ */

+#ifndef CBCP_SUPPORT

+#define CBCP_SUPPORT                    0

+#endif

+

+/**

+ * CCP_SUPPORT==1: Support CCP. CURRENTLY NOT SUPPORTED! DO NOT SET!

+ */

+#ifndef CCP_SUPPORT

+#define CCP_SUPPORT                     0

+#endif

+

+/**

+ * VJ_SUPPORT==1: Support VJ header compression.

+ */

+#ifndef VJ_SUPPORT

+#define VJ_SUPPORT                      0

+#endif

+

+/**

+ * MD5_SUPPORT==1: Support MD5 (see also CHAP).

+ */

+#ifndef MD5_SUPPORT

+#define MD5_SUPPORT                     0

+#endif

+

+/*

+ * Timeouts

+ */

+#ifndef FSM_DEFTIMEOUT

+#define FSM_DEFTIMEOUT                  6       /* Timeout time in seconds */

+#endif

+

+#ifndef FSM_DEFMAXTERMREQS

+#define FSM_DEFMAXTERMREQS              2       /* Maximum Terminate-Request transmissions */

+#endif

+

+#ifndef FSM_DEFMAXCONFREQS

+#define FSM_DEFMAXCONFREQS              10      /* Maximum Configure-Request transmissions */

+#endif

+

+#ifndef FSM_DEFMAXNAKLOOPS

+#define FSM_DEFMAXNAKLOOPS              5       /* Maximum number of nak loops */

+#endif

+

+#ifndef UPAP_DEFTIMEOUT

+#define UPAP_DEFTIMEOUT                 6       /* Timeout (seconds) for retransmitting req */

+#endif

+

+#ifndef UPAP_DEFREQTIME

+#define UPAP_DEFREQTIME                 30      /* Time to wait for auth-req from peer */

+#endif

+

+#ifndef CHAP_DEFTIMEOUT

+#define CHAP_DEFTIMEOUT                 6       /* Timeout time in seconds */

+#endif

+

+#ifndef CHAP_DEFTRANSMITS

+#define CHAP_DEFTRANSMITS               10      /* max # times to send challenge */

+#endif

+

+/* Interval in seconds between keepalive echo requests, 0 to disable. */

+#ifndef LCP_ECHOINTERVAL

+#define LCP_ECHOINTERVAL                0

+#endif

+

+/* Number of unanswered echo requests before failure. */

+#ifndef LCP_MAXECHOFAILS

+#define LCP_MAXECHOFAILS                3

+#endif

+

+/* Max Xmit idle time (in jiffies) before resend flag char. */

+#ifndef PPP_MAXIDLEFLAG

+#define PPP_MAXIDLEFLAG                 100

+#endif

+

+/*

+ * Packet sizes

+ *

+ * Note - lcp shouldn't be allowed to negotiate stuff outside these

+ *    limits.  See lcp.h in the pppd directory.

+ * (XXX - these constants should simply be shared by lcp.c instead

+ *    of living in lcp.h)

+ */

+#define PPP_MTU                         1500     /* Default MTU (size of Info field) */

+#ifndef PPP_MAXMTU

+/* #define PPP_MAXMTU  65535 - (PPP_HDRLEN + PPP_FCSLEN) */

+#define PPP_MAXMTU                      1500 /* Largest MTU we allow */

+#endif

+#define PPP_MINMTU                      64

+#define PPP_MRU                         1500     /* default MRU = max length of info field */

+#define PPP_MAXMRU                      1500     /* Largest MRU we allow */

+#ifndef PPP_DEFMRU

+#define PPP_DEFMRU                      296             /* Try for this */

+#endif

+#define PPP_MINMRU                      128             /* No MRUs below this */

+

+#ifndef MAXNAMELEN

+#define MAXNAMELEN                      256     /* max length of hostname or name for auth */

+#endif

+#ifndef MAXSECRETLEN

+#define MAXSECRETLEN                    256     /* max length of password or secret */

+#endif

+

+#endif /* PPP_SUPPORT */

+

+/*

+   --------------------------------------

+   ---------- Checksum options ----------

+   --------------------------------------

+*/

+/**

+ * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.

+ */

+#ifndef CHECKSUM_GEN_IP

+#define CHECKSUM_GEN_IP                 0

+#endif

+

+/**

+ * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.

+ */

+#ifndef CHECKSUM_GEN_UDP

+#define CHECKSUM_GEN_UDP                0

+#endif

+

+/**

+ * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.

+ */

+#ifndef CHECKSUM_GEN_TCP

+#define CHECKSUM_GEN_TCP                0

+#endif

+

+/**

+ * CHECKSUM_GEN_ICMP==1: Generate checksums in software for outgoing ICMP packets.

+ */

+#ifndef CHECKSUM_GEN_ICMP

+#define CHECKSUM_GEN_ICMP               1

+#endif

+

+/**

+ * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.

+ */

+#ifndef CHECKSUM_CHECK_IP

+#define CHECKSUM_CHECK_IP               0

+#endif

+

+/**

+ * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.

+ */

+#ifndef CHECKSUM_CHECK_UDP

+#define CHECKSUM_CHECK_UDP              0

+#endif

+

+/**

+ * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.

+ */

+#ifndef CHECKSUM_CHECK_TCP

+#define CHECKSUM_CHECK_TCP              0

+#endif

+

+/**

+ * LWIP_CHECKSUM_ON_COPY==1: Calculate checksum when copying data from

+ * application buffers to pbufs.

+ */

+#ifndef LWIP_CHECKSUM_ON_COPY

+#define LWIP_CHECKSUM_ON_COPY           0

+#endif

+

+/*

+   ---------------------------------------

+   ---------- Hook options ---------------

+   ---------------------------------------

+*/

+

+/* Hooks are undefined by default, define them to a function if you need them. */

+

+/**

+ * LWIP_HOOK_IP4_INPUT(pbuf, input_netif):

+ * - called from ip_input() (IPv4)

+ * - pbuf: received struct pbuf passed to ip_input()

+ * - input_netif: struct netif on which the packet has been received

+ * Return values:

+ * - 0: Hook has not consumed the packet, packet is processed as normal

+ * - != 0: Hook has consumed the packet.

+ * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook

+ * (i.e. free it when done).

+ */

+

+/**

+ * LWIP_HOOK_IP4_ROUTE(dest):

+ * - called from ip_route() (IPv4)

+ * - dest: destination IPv4 address

+ * Returns the destination netif or NULL if no destination netif is found. In

+ * that case, ip_route() continues as normal.

+ */

+

+/*

+   ---------------------------------------

+   ---------- Debugging options ----------

+   ---------------------------------------

+*/

+/**

+ * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is

+ * compared against this value. If it is smaller, then debugging

+ * messages are written.

+ */

+#ifndef LWIP_DBG_MIN_LEVEL

+#define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_ALL

+#endif

+

+/**

+ * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable

+ * debug messages of certain types.

+ */

+#ifndef LWIP_DBG_TYPES_ON

+#define LWIP_DBG_TYPES_ON               LWIP_DBG_OFF

+#endif

+

+/**

+ * ETHARP_DEBUG: Enable debugging in etharp.c.

+ */

+#ifndef ETHARP_DEBUG

+#define ETHARP_DEBUG                    LWIP_DBG_OFF

+#endif

+

+/**

+ * NETIF_DEBUG: Enable debugging in netif.c.

+ */

+#ifndef NETIF_DEBUG

+#define NETIF_DEBUG                     LWIP_DBG_OFF

+#endif

+

+/**

+ * PBUF_DEBUG: Enable debugging in pbuf.c.

+ */

+#ifndef PBUF_DEBUG

+#define PBUF_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * API_LIB_DEBUG: Enable debugging in api_lib.c.

+ */

+#ifndef API_LIB_DEBUG

+#define API_LIB_DEBUG                   LWIP_DBG_OFF

+#endif

+

+/**

+ * API_MSG_DEBUG: Enable debugging in api_msg.c.

+ */

+#ifndef API_MSG_DEBUG

+#define API_MSG_DEBUG                   LWIP_DBG_OFF

+#endif

+

+/**

+ * SOCKETS_DEBUG: Enable debugging in sockets.c.

+ */

+#ifndef SOCKETS_DEBUG

+#define SOCKETS_DEBUG                   LWIP_DBG_OFF

+#endif

+

+/**

+ * ICMP_DEBUG: Enable debugging in icmp.c.

+ */

+#ifndef ICMP_DEBUG

+#define ICMP_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * IGMP_DEBUG: Enable debugging in igmp.c.

+ */

+#ifndef IGMP_DEBUG

+#define IGMP_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * INET_DEBUG: Enable debugging in inet.c.

+ */

+#ifndef INET_DEBUG

+#define INET_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * IP_DEBUG: Enable debugging for IP.

+ */

+#ifndef IP_DEBUG

+#define IP_DEBUG                        LWIP_DBG_OFF

+#endif

+

+/**

+ * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass.

+ */

+#ifndef IP_REASS_DEBUG

+#define IP_REASS_DEBUG                  LWIP_DBG_OFF

+#endif

+

+/**

+ * RAW_DEBUG: Enable debugging in raw.c.

+ */

+#ifndef RAW_DEBUG

+#define RAW_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/**

+ * MEM_DEBUG: Enable debugging in mem.c.

+ */

+#ifndef MEM_DEBUG

+#define MEM_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/**

+ * MEMP_DEBUG: Enable debugging in memp.c.

+ */

+#ifndef MEMP_DEBUG

+#define MEMP_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * SYS_DEBUG: Enable debugging in sys.c.

+ */

+#ifndef SYS_DEBUG

+#define SYS_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/**

+ * TIMERS_DEBUG: Enable debugging in timers.c.

+ */

+#ifndef TIMERS_DEBUG

+#define TIMERS_DEBUG                    LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_DEBUG: Enable debugging for TCP.

+ */

+#ifndef TCP_DEBUG

+#define TCP_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug.

+ */

+#ifndef TCP_INPUT_DEBUG

+#define TCP_INPUT_DEBUG                 LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit.

+ */

+#ifndef TCP_FR_DEBUG

+#define TCP_FR_DEBUG                    LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit

+ * timeout.

+ */

+#ifndef TCP_RTO_DEBUG

+#define TCP_RTO_DEBUG                   LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_CWND_DEBUG: Enable debugging for TCP congestion window.

+ */

+#ifndef TCP_CWND_DEBUG

+#define TCP_CWND_DEBUG                  LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating.

+ */

+#ifndef TCP_WND_DEBUG

+#define TCP_WND_DEBUG                   LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions.

+ */

+#ifndef TCP_OUTPUT_DEBUG

+#define TCP_OUTPUT_DEBUG                LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_RST_DEBUG: Enable debugging for TCP with the RST message.

+ */

+#ifndef TCP_RST_DEBUG

+#define TCP_RST_DEBUG                   LWIP_DBG_OFF

+#endif

+

+/**

+ * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths.

+ */

+#ifndef TCP_QLEN_DEBUG

+#define TCP_QLEN_DEBUG                  LWIP_DBG_OFF

+#endif

+

+/**

+ * UDP_DEBUG: Enable debugging in UDP.

+ */

+#ifndef UDP_DEBUG

+#define UDP_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/**

+ * TCPIP_DEBUG: Enable debugging in tcpip.c.

+ */

+#ifndef TCPIP_DEBUG

+#define TCPIP_DEBUG                     LWIP_DBG_OFF

+#endif

+

+/**

+ * PPP_DEBUG: Enable debugging for PPP.

+ */

+#ifndef PPP_DEBUG

+#define PPP_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/**

+ * SLIP_DEBUG: Enable debugging in slipif.c.

+ */

+#ifndef SLIP_DEBUG

+#define SLIP_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * DHCP_DEBUG: Enable debugging in dhcp.c.

+ */

+#ifndef DHCP_DEBUG

+#define DHCP_DEBUG                      LWIP_DBG_OFF

+#endif

+

+/**

+ * AUTOIP_DEBUG: Enable debugging in autoip.c.

+ */

+#ifndef AUTOIP_DEBUG

+#define AUTOIP_DEBUG                    LWIP_DBG_OFF

+#endif

+

+/**

+ * SNMP_MSG_DEBUG: Enable debugging for SNMP messages.

+ */

+#ifndef SNMP_MSG_DEBUG

+#define SNMP_MSG_DEBUG                  LWIP_DBG_OFF

+#endif

+

+/**

+ * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs.

+ */

+#ifndef SNMP_MIB_DEBUG

+#define SNMP_MIB_DEBUG                  LWIP_DBG_OFF

+#endif

+

+/**

+ * DNS_DEBUG: Enable debugging for DNS.

+ */

+#ifndef DNS_DEBUG

+#define DNS_DEBUG                       LWIP_DBG_OFF

+#endif

+

+/* Use ChibiOS specific priorities. */

+#if !defined(TCPIP_THREAD_PRIO)

+#define TCPIP_THREAD_PRIO               (LOWPRIO + 1)

+#endif

+#if !defined(LWIP_THREAD_PRIORITY)

+#define LWIP_THREAD_PRIORITY            (LOWPRIO)

+#endif

+

+#endif /* LWIP_HDR_LWIPOPTS_H__ */

diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipthread.c b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipthread.c
new file mode 100644
index 000000000..c431d0703
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipthread.c
@@ -0,0 +1,428 @@
+/*

+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio

+

+    Licensed under the Apache License, Version 2.0 (the "License");

+    you may not use this file except in compliance with the License.

+    You may obtain a copy of the License at

+

+        http://www.apache.org/licenses/LICENSE-2.0

+

+    Unless required by applicable law or agreed to in writing, software

+    distributed under the License is distributed on an "AS IS" BASIS,

+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+    See the License for the specific language governing permissions and

+    limitations under the License.

+*/

+/*

+ * **** This file incorporates work covered by the following copyright and ****

+ * **** permission notice:                                                 ****

+ *

+ * 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 <adam@sics.se>

+ *

+ */

+

+/**

+ * @file lwipthread.c

+ * @brief LWIP wrapper thread code.

+ * @addtogroup LWIP_THREAD

+ * @{

+ */

+

+#include "lwipthread.h"

+

+#include "hal.h"

+#include "evtimer.h"

+

+#include <lwip/opt.h>

+#include <lwip/def.h>

+#include <lwip/mem.h>

+#include <lwip/pbuf.h>

+#include <lwip/sys.h>

+#include <lwip/stats.h>

+#include <lwip/snmp.h>

+#include <lwip/tcpip.h>

+#include <netif/etharp.h>

+#include <lwip/netifapi.h>

+

+#if LWIP_DHCP

+#include <lwip/dhcp.h>

+#endif

+

+#if LWIP_AUTOIP

+#include <lwip/autoip.h>

+#endif

+

+#define PERIODIC_TIMER_ID       1

+#define FRAME_RECEIVED_ID       2

+

+/*

+ * Suspension point for initialization procedure.

+ */

+thread_reference_t lwip_trp = NULL;

+

+/*

+ * Stack area for the LWIP-MAC thread.

+ */

+static THD_WORKING_AREA(wa_lwip_thread, LWIP_THREAD_STACK_SIZE);

+

+/*

+ * Initialization.

+ */

+static void low_level_init(struct netif *netif) {

+  /* set MAC hardware address length */

+  netif->hwaddr_len = ETHARP_HWADDR_LEN;

+

+  /* maximum transfer unit */

+  netif->mtu = LWIP_NETIF_MTU;

+

+  /* device capabilities */

+  /* don't set NETIF_FLAG_ETHARP if this device is not an Ethernet one */

+  netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;

+

+  /* Do whatever else is needed to initialize interface. */

+}

+

+/*

+ * This function does the actual transmission of the packet. The packet is

+ * contained in the pbuf that is passed to the function. This pbuf

+ * might be chained.

+ *

+ * @param netif the lwip network interface structure for this ethernetif

+ * @param p the MAC packet to send (e.g. IP packet including MAC addresses and type)

+ * @return ERR_OK if the packet could be sent

+ *         an err_t value if the packet couldn't be sent

+ *

+ * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to

+ *       strange results. You might consider waiting for space in the DMA queue

+ *       to become available since the stack doesn't retry to send a packet

+ *       dropped because of memory failure (except for the TCP timers).

+ */

+static err_t low_level_output(struct netif *netif, struct pbuf *p) {

+  struct pbuf *q;

+  MACTransmitDescriptor td;

+

+  (void)netif;

+  if (macWaitTransmitDescriptor(&ETHD0, &td, TIME_MS2I(LWIP_SEND_TIMEOUT)) != MSG_OK)

+    return ERR_TIMEOUT;

+

+#if ETH_PAD_SIZE

+  pbuf_header(p, -ETH_PAD_SIZE);        /* drop the padding word */

+#endif

+

+  /* Iterates through the pbuf chain. */

+  for(q = p; q != NULL; q = q->next)

+    macWriteTransmitDescriptor(&td, (uint8_t *)q->payload, (size_t)q->len);

+  macReleaseTransmitDescriptor(&td);

+

+  MIB2_STATS_NETIF_ADD(netif, ifoutoctets, p->tot_len);

+  if (((u8_t*)p->payload)[0] & 1) {

+    /* broadcast or multicast packet*/

+    MIB2_STATS_NETIF_INC(netif, ifoutnucastpkts);

+  } 

+  else {

+    /* unicast packet */

+    MIB2_STATS_NETIF_INC(netif, ifoutucastpkts);

+  }

+  /* increase ifoutdiscards or ifouterrors on error */

+

+#if ETH_PAD_SIZE

+  pbuf_header(p, ETH_PAD_SIZE);         /* reclaim the padding word */

+#endif

+

+  LINK_STATS_INC(link.xmit);

+

+  return ERR_OK;

+}

+

+/*

+ * Receives a frame.

+ * Allocates a pbuf and transfers the bytes of the incoming

+ * packet from the interface into the pbuf.

+ *

+ * @param netif the lwip network interface structure for this ethernetif

+ * @return a pbuf filled with the received packet (including MAC header)

+ *         NULL on memory error

+ */

+static bool low_level_input(struct netif *netif, struct pbuf **pbuf) {

+  MACReceiveDescriptor rd;

+  struct pbuf *q;

+  u16_t len;

+

+  (void)netif;

+

+  osalDbgAssert(pbuf != NULL, "invalid null pointer");

+

+  if (macWaitReceiveDescriptor(&ETHD0, &rd, TIME_IMMEDIATE) != MSG_OK)

+    return false;

+

+  len = (u16_t)rd.size;

+

+#if ETH_PAD_SIZE

+  len += ETH_PAD_SIZE;        /* allow room for Ethernet padding */

+#endif

+

+  /* We allocate a pbuf chain of pbufs from the pool. */

+  *pbuf = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);

+

+  if (*pbuf != NULL) {

+#if ETH_PAD_SIZE

+    pbuf_header(pbuf, -ETH_PAD_SIZE); /* drop the padding word */

+#endif

+

+    /* Iterates through the pbuf chain. */

+    for(q = *pbuf; q != NULL; q = q->next)

+      macReadReceiveDescriptor(&rd, (uint8_t *)q->payload, (size_t)q->len);

+    macReleaseReceiveDescriptor(&rd);

+

+    MIB2_STATS_NETIF_ADD(netif, ifinoctets, *pbuf->tot_len);

+

+    if (*(uint8_t *)((*pbuf)->payload) & 1) {

+      /* broadcast or multicast packet*/

+      MIB2_STATS_NETIF_INC(netif, ifinnucastpkts);

+    } 

+    else {

+      /* unicast packet*/

+      MIB2_STATS_NETIF_INC(netif, ifinucastpkts);

+    }

+

+#if ETH_PAD_SIZE

+    pbuf_header(pbuf, ETH_PAD_SIZE); /* reclaim the padding word */

+#endif

+

+    LINK_STATS_INC(link.recv);

+  }

+  else {

+    macReleaseReceiveDescriptor(&rd);     // Drop packet

+    LINK_STATS_INC(link.memerr);

+    LINK_STATS_INC(link.drop);

+    MIB2_STATS_NETIF_INC(netif, ifindiscards);

+  }

+  

+  return true;

+}

+

+/*

+ * Called at the beginning of the program to set up the

+ * network interface. It calls the function low_level_init() to do the

+ * actual setup of the hardware.

+ *

+ * This function should be passed as a parameter to netifapi_netif_add().

+ *

+ * @param netif the lwip network interface structure for this ethernetif

+ * @return ERR_OK if the loopif is initialised

+ *         ERR_MEM if private data couldn't be allocated

+ *         any other err_t on error

+ */

+static err_t ethernetif_init(struct netif *netif) {

+  osalDbgAssert((netif != NULL), "netif != NULL");

+

+  /*

+   * Initialize the snmp variables and counters inside the struct netif.

+   * The last argument should be replaced with your link speed, in units

+   * of bits per second.

+   */

+  MIB2_INIT_NETIF(netif, snmp_ifType_ethernet_csmacd, LWIP_LINK_SPEED);

+

+  netif->state = NULL;

+  netif->name[0] = LWIP_IFNAME0;

+  netif->name[1] = LWIP_IFNAME1;

+  /* We directly use etharp_output() here to save a function call.

+   * You can instead declare your own function an call etharp_output()

+   * from it if you have to do some checks before sending (e.g. if link

+   * is available...) */

+  netif->output = etharp_output;

+  netif->linkoutput = low_level_output;

+

+  /* initialize the hardware */

+  low_level_init(netif);

+

+  return ERR_OK;

+}

+

+/**

+ * @brief LWIP handling thread.

+ *

+ * @param[in] p pointer to a @p lwipthread_opts structure or @p NULL

+ * @return The function does not return.

+ */

+static THD_FUNCTION(lwip_thread, p) {

+  event_timer_t evt;

+  event_listener_t el0, el1;

+  ip_addr_t ip, gateway, netmask;

+  static struct netif thisif = { 0 };

+  static const MACConfig mac_config = {thisif.hwaddr};

+  net_addr_mode_t addressMode;

+  err_t result;

+

+  chRegSetThreadName(LWIP_THREAD_NAME);

+

+  /* Initializes the thing.*/

+  tcpip_init(NULL, NULL);

+

+  /* TCP/IP parameters, runtime or compile time.*/

+  if (p) {

+    struct lwipthread_opts *opts = p;

+    unsigned i;

+

+    for (i = 0; i < 6; i++)

+      thisif.hwaddr[i] = opts->macaddress[i];

+    ip.addr = opts->address;

+    gateway.addr = opts->gateway;

+    netmask.addr = opts->netmask;

+    addressMode = opts->addrMode;

+#if LWIP_NETIF_HOSTNAME

+    thisif.hostname = opts->ourHostName;

+#endif

+  }

+  else {

+    thisif.hwaddr[0] = LWIP_ETHADDR_0;

+    thisif.hwaddr[1] = LWIP_ETHADDR_1;

+    thisif.hwaddr[2] = LWIP_ETHADDR_2;

+    thisif.hwaddr[3] = LWIP_ETHADDR_3;

+    thisif.hwaddr[4] = LWIP_ETHADDR_4;

+    thisif.hwaddr[5] = LWIP_ETHADDR_5;

+    LWIP_IPADDR(&ip);

+    LWIP_GATEWAY(&gateway);

+    LWIP_NETMASK(&netmask);

+    addressMode = NET_ADDRESS_STATIC;

+#if LWIP_NETIF_HOSTNAME

+    thisif.hostname = NULL;

+#endif

+  }

+

+#if LWIP_NETIF_HOSTNAME

+  if (thisif.hostname == NULL)

+    thisif.hostname = LWIP_NETIF_HOSTNAME_STRING;

+#endif

+

+  macStart(&ETHD0, &mac_config);

+

+  /* Add interface. */

+  result = netifapi_netif_add(&thisif, &ip, &netmask, &gateway, NULL, ethernetif_init, tcpip_input);

+  if (result != ERR_OK)

+  {

+    chThdSleepMilliseconds(1000);     // Give some time to print any other diagnostics.

+    osalSysHalt("netif_add error");   // Not sure what else we can do if an error occurs here.

+  };

+

+  netif_set_default(&thisif);

+

+  switch (addressMode)

+  {

+#if LWIP_AUTOIP

+    case NET_ADDRESS_AUTO:

+        autoip_start(&thisif);

+        break;

+#endif

+

+    default:

+      netif_set_up(&thisif);

+      break;

+  }

+

+  /* Setup event sources.*/

+  evtObjectInit(&evt, LWIP_LINK_POLL_INTERVAL);

+  evtStart(&evt);

+  chEvtRegisterMask(&evt.et_es, &el0, PERIODIC_TIMER_ID);

+  chEvtRegisterMask(macGetReceiveEventSource(&ETHD0), &el1, FRAME_RECEIVED_ID);

+  chEvtAddEvents(PERIODIC_TIMER_ID | FRAME_RECEIVED_ID);

+

+  /* Resumes the caller and goes to the final priority.*/

+  chThdResume(&lwip_trp, MSG_OK);

+  chThdSetPriority(LWIP_THREAD_PRIORITY);

+

+  while (true) {

+    eventmask_t mask = chEvtWaitAny(ALL_EVENTS);

+    if (mask & PERIODIC_TIMER_ID) {

+      bool current_link_status = macPollLinkStatus(&ETHD0);

+      if (current_link_status != netif_is_link_up(&thisif)) {

+        if (current_link_status) {

+          tcpip_callback_with_block((tcpip_callback_fn) netif_set_link_up,

+                                     &thisif, 0);

+#if LWIP_DHCP

+          if (addressMode == NET_ADDRESS_DHCP)

+            dhcp_start(&thisif);

+#endif

+        }

+        else {

+          tcpip_callback_with_block((tcpip_callback_fn) netif_set_link_down,

+                                     &thisif, 0);

+#if LWIP_DHCP

+          if (addressMode == NET_ADDRESS_DHCP)

+            dhcp_stop(&thisif);

+#endif

+        }

+      }

+    }

+    

+    if (mask & FRAME_RECEIVED_ID) {

+      struct pbuf *p;

+      while (low_level_input(&thisif, &p)) {

+        if (p != NULL) {

+          struct eth_hdr *ethhdr = p->payload;

+          switch (htons(ethhdr->type)) {

+            /* IP or ARP packet? */

+            case ETHTYPE_IP:

+            case ETHTYPE_ARP:

+              /* full packet send to tcpip_thread to process */

+              if (thisif.input(p, &thisif) == ERR_OK)

+                break;

+              LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));

+          /* Falls through */

+            default:

+              pbuf_free(p);

+          }

+        }

+      }

+    }

+  }

+}

+

+/**

+ * @brief   Initializes the lwIP subsystem.

+ * @note    The function exits after the initialization is finished.

+ *

+ * @param[in] opts      pointer to the configuration structure, if @p NULL

+ *                      then the static configuration is used.

+ */

+void lwipInit(const lwipthread_opts_t *opts) {

+  /* Creating the lwIP thread (it changes priority internally).*/

+  chThdCreateStatic(wa_lwip_thread, sizeof (wa_lwip_thread),

+                    chThdGetPriorityX() - 1, lwip_thread, (void *)opts);

+

+  /* Waiting for the lwIP thread complete initialization. Note,

+     this thread reaches the thread reference object first because

+     the relative priorities.*/

+  chSysLock();

+  chThdSuspendS(&lwip_trp);

+  chSysUnlock();

+}

+

+/** @} */

diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipthread.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipthread.h
new file mode 100644
index 000000000..d9c4d5586
--- /dev/null
+++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-NSEC/lwipthread.h
@@ -0,0 +1,247 @@
+/*

+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio

+

+    Licensed under the Apache License, Version 2.0 (the "License");

+    you may not use this file except in compliance with the License.

+    You may obtain a copy of the License at

+

+        http://www.apache.org/licenses/LICENSE-2.0

+

+    Unless required by applicable law or agreed to in writing, software

+    distributed under the License is distributed on an "AS IS" BASIS,

+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+    See the License for the specific language governing permissions and

+    limitations under the License.

+*/

+

+/**

+ * @file lwipthread.h

+ * @brief LWIP wrapper thread macros and structures.

+ * @addtogroup LWIP_THREAD

+ * @{

+ */

+

+#ifndef LWIPTHREAD_H

+#define LWIPTHREAD_H

+

+#include <lwip/opt.h>

+

+/**

+ * @brief   lwIP default network interface maximum transmission unit (MTU).

+ */

+#if !defined(LWIP_NETIF_MTU) || defined(__DOXYGEN__)

+#define LWIP_NETIF_MTU                      1500

+#endif

+

+/**

+ * @brief   Default network interface hostname.

+ */

+#if !defined(LWIP_NETIF_HOSTNAME_STRING) || defined(__DOXYGEN__)

+#define LWIP_NETIF_HOSTNAME_STRING          "lwip"

+#endif

+

+/**

+ * @brief   Default network interface hostname.

+ */

+#if !defined(LWIP_THREAD_NAME) || defined(__DOXYGEN__)

+#define LWIP_THREAD_NAME                    "lwipthread"

+#endif

+

+/**

+ * @brief   lwIP thread priority.

+ */

+#ifndef LWIP_THREAD_PRIORITY

+#define LWIP_THREAD_PRIORITY                LOWPRIO

+#endif

+

+/**

+ * @brief  lwIP thread stack size.

+ */

+#if !defined(LWIP_THREAD_STACK_SIZE) || defined(__DOXYGEN__)

+#define LWIP_THREAD_STACK_SIZE              1400

+#endif

+

+/**

+ * @brief   Link poll interval.

+ */

+#if !defined(LWIP_LINK_POLL_INTERVAL) || defined(__DOXYGEN__)

+#define LWIP_LINK_POLL_INTERVAL             TIME_S2I(5)

+#endif

+

+/**

+ *  @brief  IP Address.

+ */

+#if !defined(LWIP_IPADDR) || defined(__DOXYGEN__)

+#define LWIP_IPADDR(p)                      IP4_ADDR(p, 192, 168, 21, 11)

+#endif

+

+/**

+ * @brief   IP Gateway.

+ */

+#if !defined(LWIP_GATEWAY) || defined(__DOXYGEN__)

+#define LWIP_GATEWAY(p)                     IP4_ADDR(p, 192, 168, 21, 1)

+#endif

+

+/**

+ * @brief   IP netmask.

+ */

+#if !defined(LWIP_NETMASK) || defined(__DOXYGEN__)

+#define LWIP_NETMASK(p)                     IP4_ADDR(p, 255, 255, 255, 0)

+#endif

+

+/**

+ * @brief   Transmission timeout.

+ */

+#if !defined(LWIP_SEND_TIMEOUT) || defined(__DOXYGEN__)

+#define LWIP_SEND_TIMEOUT                   100

+#endif

+

+/**

+ * @brief   Link speed.

+ */

+#if !defined(LWIP_LINK_SPEED) || defined(__DOXYGEN__)

+#define LWIP_LINK_SPEED                     100000000

+#endif

+

+/**

+ * @brief   MAC Address byte 0.

+ */

+#if !defined(LWIP_ETHADDR_0) || defined(__DOXYGEN__)

+#define LWIP_ETHADDR_0                       0x54

+#endif

+

+/**

+ * @brief   MAC Address byte 1.

+ */

+#if !defined(LWIP_ETHADDR_1) || defined(__DOXYGEN__)

+#define LWIP_ETHADDR_1                      0x54

+#endif

+

+/**

+ * @brief   MAC Address byte 2.

+ */

+#if !defined(LWIP_ETHADDR_2) || defined(__DOXYGEN__)

+#define LWIP_ETHADDR_2                      0x08

+#endif

+

+/**

+ * @brief   MAC Address byte 3.

+ */

+#if !defined(LWIP_ETHADDR_3) || defined(__DOXYGEN__)

+#define LWIP_ETHADDR_3                      0x34

+#endif

+

+/**

+ * @brief   MAC Address byte 4.

+ */

+#if !defined(LWIP_ETHADDR_4) || defined(__DOXYGEN__)

+#define LWIP_ETHADDR_4                      0x1f

+#endif

+

+/**

+ * @brief   MAC Address byte 5.

+ */

+#if !defined(LWIP_ETHADDR_5) || defined(__DOXYGEN__)

+#define LWIP_ETHADDR_5                      0x3a

+#endif

+

+/**

+ * @brief   Interface name byte 0.

+ */

+#if !defined(LWIP_IFNAME0) || defined(__DOXYGEN__)

+#define LWIP_IFNAME0                        'e'

+#endif

+

+/**

+ * @brief  Interface name byte 1.

+ */

+#if !defined(LWIP_IFNAME1) || defined(__DOXYGEN__)

+#define LWIP_IFNAME1                        'n'

+#endif

+

+/**

+ *  @brief   Utility macro to define an IPv4 address.

+ *

+ *  @note    Within the networking subsystem, IPv4 network addresses are

+ *           stored with LS byte of network address in MS byte of unsigned int.

+ */

+#if BYTE_ORDER == LITTLE_ENDIAN

+#define IP4_ADDR_VALUE(a,b,c,d)        \

+        (((u32_t)((d) & 0xff) << 24) | \

+         ((u32_t)((c) & 0xff) << 16) | \

+         ((u32_t)((b) & 0xff) << 8)  | \

+          (u32_t)((a) & 0xff))

+#else

+#define IP4_ADDR_VALUE(a,b,c,d)        \

+        (((u32_t)((a) & 0xff) << 24) | \

+         ((u32_t)((b) & 0xff) << 16) | \

+         ((u32_t)((c) & 0xff) << 8)  | \

+          (u32_t)((d) & 0xff))

+#endif

+

+/**

+ *  @brief   Startup network assigning modes.

+ */

+typedef enum {

+#if LWIP_DHCP || defined(__DOXYGEN__)

+    /** 

+     * @brief   Assign a DHCP given address.

+     */

+    NET_ADDRESS_DHCP = 1,

+#endif

+    /**

+     * @brief   Assign a statically IPv4 address. 

+     */

+    NET_ADDRESS_STATIC = 2,

+#if LWIP_AUTOIP  || defined(__DOXYGEN__)

+    /**

+     * @brief   Assign an IPv4 link-Local address.

+     */

+    NET_ADDRESS_AUTO = 3

+#endif

+} net_addr_mode_t;

+

+/**

+ * @brief   Runtime TCP/IP settings.

+ */

+typedef struct lwipthread_opts {

+  /**

+   * @brief   Pointer to MAC address as an array of 6 unsigned bytes.

+   */

+  uint8_t         *macaddress;

+  /**

+   * @brief   Network address as 32-bit unsigned integer.

+   */

+  uint32_t        address;

+  /**

+   * @brief   Network subnet mask as 32-bit unsigned integer.

+   */

+  uint32_t        netmask;

+  /**

+   * @brief   Network gateway as 32-bit unsigned integer.

+   */

+  uint32_t        gateway;

+  /**

+   * @brief   Startup network addressing mode - static, DHCP, auto.

+   */

+  net_addr_mode_t addrMode;

+  /**

+   * @brief   Host name. If NULL, a default string is used.

+   * @note    Not checked for validity. In particular, spaces not allowed.

+   */

+#if LWIP_NETIF_HOSTNAME || defined(__DOXYGEN__)

+  const char              *ourHostName;

+#endif

+} lwipthread_opts_t;

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void lwipInit(const lwipthread_opts_t *opts);

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* LWIPTHREAD_H */

+

+/** @} */