Daniel Peter / Net

lwip/core/init.c@0:d616ece2d859, 2010-09-18 (annotated)

Committer:
mbed714
Date:
Sat Sep 18 23:05:49 2010 +0000
Revision:
0:d616ece2d859

        

        
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/**





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 * @file





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 * Modules initialization





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 *





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 */





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/*





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 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.





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 * All rights reserved. 





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 * 





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 * Redistribution and use in source and binary forms, with or without modification, 





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 * are permitted provided that the following conditions are met:





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 *





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 * 1. Redistributions of source code must retain the above copyright notice,





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 *    this list of conditions and the following disclaimer.





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 * 2. Redistributions in binary form must reproduce the above copyright notice,





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 *    this list of conditions and the following disclaimer in the documentation





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 *    and/or other materials provided with the distribution.





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 * 3. The name of the author may not be used to endorse or promote products





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 *    derived from this software without specific prior written permission. 





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 *





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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 





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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 





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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 





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 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 





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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 





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 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 





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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 





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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 





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 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 





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 * OF SUCH DAMAGE.





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 *





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 * This file is part of the lwIP TCP/IP stack.





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 * 





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 * Author: Adam Dunkels <adam@sics.se>





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 *





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 */





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#include "lwip/opt.h"





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#include "lwip/init.h"





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#include "lwip/stats.h"





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#include "lwip/sys.h"





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#include "lwip/mem.h"





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#include "lwip/memp.h"





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#include "lwip/pbuf.h"





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#include "lwip/netif.h"





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#include "lwip/sockets.h"





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#include "lwip/ip.h"





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#include "lwip/raw.h"





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#include "lwip/udp.h"





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#include "lwip/tcp_impl.h"





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#include "lwip/snmp_msg.h"





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#include "lwip/autoip.h"





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#include "lwip/igmp.h"





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#include "lwip/dns.h"





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#include "lwip/timers.h"





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#include "netif/etharp.h"





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/* Compile-time sanity checks for configuration errors.





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 * These can be done independently of LWIP_DEBUG, without penalty.





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 */





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#ifndef BYTE_ORDER





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  #error "BYTE_ORDER is not defined, you have to define it in your cc.h"





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#endif





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#if (!IP_SOF_BROADCAST && IP_SOF_BROADCAST_RECV)





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  #error "If you want to use broadcast filter per pcb on recv operations, you have to define IP_SOF_BROADCAST=1 in your lwipopts.h"





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#endif





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#if (!LWIP_ARP && ARP_QUEUEING)





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  #error "If you want to use ARP Queueing, you have to define LWIP_ARP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_UDP && LWIP_UDPLITE)





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  #error "If you want to use UDP Lite, you have to define LWIP_UDP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_UDP && LWIP_SNMP)





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  #error "If you want to use SNMP, you have to define LWIP_UDP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_UDP && LWIP_DHCP)





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  #error "If you want to use DHCP, you have to define LWIP_UDP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_UDP && LWIP_IGMP)





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  #error "If you want to use IGMP, you have to define LWIP_UDP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_UDP && LWIP_SNMP)





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  #error "If you want to use SNMP, you have to define LWIP_UDP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_UDP && LWIP_DNS)





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  #error "If you want to use DNS, you have to define LWIP_UDP=1 in your lwipopts.h"





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#endif





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#if (LWIP_ARP && ARP_QUEUEING && (MEMP_NUM_ARP_QUEUE<=0))





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  #error "If you want to use ARP Queueing, you have to define MEMP_NUM_ARP_QUEUE>=1 in your lwipopts.h"





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#endif





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#if (LWIP_RAW && (MEMP_NUM_RAW_PCB<=0))





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  #error "If you want to use RAW, you have to define MEMP_NUM_RAW_PCB>=1 in your lwipopts.h"





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#endif





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#if (LWIP_UDP && (MEMP_NUM_UDP_PCB<=0))





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  #error "If you want to use UDP, you have to define MEMP_NUM_UDP_PCB>=1 in your lwipopts.h"





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#endif





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#if (LWIP_TCP && (MEMP_NUM_TCP_PCB<=0))





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  #error "If you want to use TCP, you have to define MEMP_NUM_TCP_PCB>=1 in your lwipopts.h"





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#endif





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#if (LWIP_TCP && (TCP_WND > 0xffff))





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  #error "If you want to use TCP, TCP_WND must fit in an u16_t, so, you have to reduce it in your lwipopts.h"





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#endif





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#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff))





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  #error "If you want to use TCP, TCP_SND_QUEUELEN must fit in an u16_t, so, you have to reduce it in your lwipopts.h"





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#endif





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#if (LWIP_TCP && ((TCP_MAXRTX > 12) || (TCP_SYNMAXRTX > 12)))





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  #error "If you want to use TCP, TCP_MAXRTX and TCP_SYNMAXRTX must less or equal to 12 (due to tcp_backoff table), so, you have to reduce them in your lwipopts.h"





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#endif





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#if (LWIP_TCP && TCP_LISTEN_BACKLOG && (TCP_DEFAULT_LISTEN_BACKLOG < 0) || (TCP_DEFAULT_LISTEN_BACKLOG > 0xff))





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  #error "If you want to use TCP backlog, TCP_DEFAULT_LISTEN_BACKLOG must fit into an u8_t"





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#endif





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#if (LWIP_IGMP && (MEMP_NUM_IGMP_GROUP<=1))





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  #error "If you want to use IGMP, you have to define MEMP_NUM_IGMP_GROUP>1 in your lwipopts.h"





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#endif





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#if (LWIP_NETIF_API && (NO_SYS==1))





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  #error "If you want to use NETIF API, you have to define NO_SYS=0 in your lwipopts.h"





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#endif





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#if ((LWIP_SOCKET || LWIP_NETCONN) && (NO_SYS==1))





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  #error "If you want to use Sequential API, you have to define NO_SYS=0 in your lwipopts.h"





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#endif





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#if ((LWIP_NETCONN || LWIP_SOCKET) && (MEMP_NUM_TCPIP_MSG_API<=0))





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  #error "If you want to use Sequential API, you have to define MEMP_NUM_TCPIP_MSG_API>=1 in your lwipopts.h"





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#endif





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#if (!LWIP_NETCONN && LWIP_SOCKET)





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  #error "If you want to use Socket API, you have to define LWIP_NETCONN=1 in your lwipopts.h"





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#endif





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#if (((!LWIP_DHCP) || (!LWIP_AUTOIP)) && LWIP_DHCP_AUTOIP_COOP)





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  #error "If you want to use DHCP/AUTOIP cooperation mode, you have to define LWIP_DHCP=1 and LWIP_AUTOIP=1 in your lwipopts.h"





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#endif





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#if (((!LWIP_DHCP) || (!LWIP_ARP)) && DHCP_DOES_ARP_CHECK)





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  #error "If you want to use DHCP ARP checking, you have to define LWIP_DHCP=1 and LWIP_ARP=1 in your lwipopts.h"





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#endif





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#if (!LWIP_ARP && LWIP_AUTOIP)





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  #error "If you want to use AUTOIP, you have to define LWIP_ARP=1 in your lwipopts.h"





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#endif





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#if (LWIP_SNMP && (SNMP_CONCURRENT_REQUESTS<=0))





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  #error "If you want to use SNMP, you have to define SNMP_CONCURRENT_REQUESTS>=1 in your lwipopts.h"





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#endif





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#if (LWIP_SNMP && (SNMP_TRAP_DESTINATIONS<=0))





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  #error "If you want to use SNMP, you have to define SNMP_TRAP_DESTINATIONS>=1 in your lwipopts.h"





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#endif





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#if (LWIP_TCP && ((LWIP_EVENT_API && LWIP_CALLBACK_API) || (!LWIP_EVENT_API && !LWIP_CALLBACK_API)))





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  #error "One and exactly one of LWIP_EVENT_API and LWIP_CALLBACK_API has to be enabled in your lwipopts.h"





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#endif





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/* There must be sufficient timeouts, taking into account requirements of the subsystems. */





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#if LWIP_TIMERS && (MEMP_NUM_SYS_TIMEOUT < (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT))





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  #error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts"





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#endif





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#if (IP_REASSEMBLY && (MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS))





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  #error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!"





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#endif





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#if (MEM_LIBC_MALLOC && MEM_USE_POOLS)





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  #error "MEM_LIBC_MALLOC and MEM_USE_POOLS may not both be simultaneously enabled in your lwipopts.h"





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#endif





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#if (MEM_USE_POOLS && !MEMP_USE_CUSTOM_POOLS)





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  #error "MEM_USE_POOLS requires custom pools (MEMP_USE_CUSTOM_POOLS) to be enabled in your lwipopts.h"





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#endif





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#if (PBUF_POOL_BUFSIZE <= MEM_ALIGNMENT)





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  #error "PBUF_POOL_BUFSIZE must be greater than MEM_ALIGNMENT or the offset may take the full first pbuf"





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#endif





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#if (TCP_QUEUE_OOSEQ && !LWIP_TCP)





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  #error "TCP_QUEUE_OOSEQ requires LWIP_TCP"





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#endif





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#if (DNS_LOCAL_HOSTLIST && !DNS_LOCAL_HOSTLIST_IS_DYNAMIC && !(defined(DNS_LOCAL_HOSTLIST_INIT)))





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  #error "you have to define define DNS_LOCAL_HOSTLIST_INIT {{'host1', 0x123}, {'host2', 0x234}} to initialize DNS_LOCAL_HOSTLIST"





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#endif





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#if PPP_SUPPORT && !PPPOS_SUPPORT & !PPPOE_SUPPORT





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  #error "PPP_SUPPORT needs either PPPOS_SUPPORT or PPPOE_SUPPORT turned on"





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#endif





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#if !LWIP_ETHERNET && (LWIP_ARP || PPPOE_SUPPORT)





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  #error "LWIP_ETHERNET needs to be turned on for LWIP_ARP or PPPOE_SUPPORT"





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#endif





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#if LWIP_IGMP && !defined(LWIP_RAND)





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  #error "When using IGMP, LWIP_RAND() needs to be defined to a random-function returning an u32_t random value"





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#endif





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#if LWIP_TCPIP_CORE_LOCKING_INPUT && !LWIP_TCPIP_CORE_LOCKING





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  #error "When using LWIP_TCPIP_CORE_LOCKING_INPUT, LWIP_TCPIP_CORE_LOCKING must be enabled, too"





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#endif





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#if LWIP_TCP && LWIP_NETIF_TX_SINGLE_PBUF && !TCP_OVERSIZE





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  #error "LWIP_NETIF_TX_SINGLE_PBUF needs TCP_OVERSIZE enabled to create single-pbuf TCP packets"





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#endif





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#if IP_FRAG && IP_FRAG_USES_STATIC_BUF && LWIP_NETIF_TX_SINGLE_PBUF





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  #error "LWIP_NETIF_TX_SINGLE_PBUF does not work with IP_FRAG_USES_STATIC_BUF==1 as that creates pbuf queues"





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#endif





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/* Compile-time checks for deprecated options.





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 */





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#ifdef MEMP_NUM_TCPIP_MSG





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  #error "MEMP_NUM_TCPIP_MSG option is deprecated. Remove it from your lwipopts.h."





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#endif





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#ifdef MEMP_NUM_API_MSG





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  #error "MEMP_NUM_API_MSG option is deprecated. Remove it from your lwipopts.h."





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#endif





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#ifdef TCP_REXMIT_DEBUG





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  #error "TCP_REXMIT_DEBUG option is deprecated. Remove it from your lwipopts.h."





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#endif





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#ifdef RAW_STATS





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  #error "RAW_STATS option is deprecated. Remove it from your lwipopts.h."





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#endif





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#ifdef ETHARP_QUEUE_FIRST





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  #error "ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h."





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#endif





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#ifdef ETHARP_ALWAYS_INSERT





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  #error "ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h."





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#endif





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#ifdef LWIP_DEBUG





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static void





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lwip_sanity_check(void)





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{





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  /* Warnings */





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#if LWIP_NETCONN





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  if (MEMP_NUM_NETCONN > (MEMP_NUM_TCP_PCB+MEMP_NUM_TCP_PCB_LISTEN+MEMP_NUM_UDP_PCB+MEMP_NUM_RAW_PCB))





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: MEMP_NUM_NETCONN should be less than the sum of MEMP_NUM_{TCP,RAW,UDP}_PCB+MEMP_NUM_TCP_PCB_LISTEN\n"));





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#endif /* LWIP_NETCONN */





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#if LWIP_TCP





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  if (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN\n"));





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  if (TCP_SND_BUF < 2 * TCP_MSS)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SND_BUF must be at least as much as (2 * TCP_MSS) for things to work smoothly\n"));





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  if (TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF/TCP_MSS)))





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SND_QUEUELEN must be at least as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work\n"));





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  if (TCP_SNDLOWAT >= TCP_SND_BUF)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than TCP_SND_BUF.\n"));





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  if (TCP_SNDQUEUELOWAT >= TCP_SND_QUEUELEN)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SNDQUEUELOWAT must be less than TCP_SND_QUEUELEN.\n"));





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  if (TCP_WND > (PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE))





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE\n"));





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  if (TCP_WND < TCP_MSS)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is smaller than MSS\n"));





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#endif /* LWIP_TCP */





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#if LWIP_SOCKET





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  /* Check that the SO_* socket options and SOF_* lwIP-internal flags match */





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  if (SO_ACCEPTCONN != SOF_ACCEPTCONN)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_ACCEPTCONN != SOF_ACCEPTCONN\n"));





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  if (SO_REUSEADDR != SOF_REUSEADDR)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_REUSEADDR != SOF_REUSEADDR\n"));





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  if (SO_KEEPALIVE != SOF_KEEPALIVE)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_KEEPALIVE != SOF_KEEPALIVE\n"));





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  if (SO_BROADCAST != SOF_BROADCAST)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_BROADCAST != SOF_BROADCAST\n"));





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  if (SO_LINGER != SOF_LINGER)





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    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_LINGER != SOF_LINGER\n"));





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#endif /* LWIP_SOCKET */





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}





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#else  /* LWIP_DEBUG */





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#define lwip_sanity_check()





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#endif /* LWIP_DEBUG */





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/**





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 * Perform Sanity check of user-configurable values, and initialize all modules.





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 */





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void





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lwip_init(void)





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{





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  /* Sanity check user-configurable values */





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  lwip_sanity_check();





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  /* Modules initialization */





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  stats_init();





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#if !NO_SYS





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  sys_init();





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#endif /* !NO_SYS */





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  mem_init();





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  memp_init();





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  pbuf_init();





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  netif_init();





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#if LWIP_SOCKET





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  lwip_socket_init();





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#endif /* LWIP_SOCKET */





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  ip_init();





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#if LWIP_ARP





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  etharp_init();





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#endif /* LWIP_ARP */





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#if LWIP_RAW





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  raw_init();





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#endif /* LWIP_RAW */





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#if LWIP_UDP





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  udp_init();





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#endif /* LWIP_UDP */





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#if LWIP_TCP





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  tcp_init();





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#endif /* LWIP_TCP */





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#if LWIP_SNMP





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  snmp_init();





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#endif /* LWIP_SNMP */





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#if LWIP_AUTOIP





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  autoip_init();





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#endif /* LWIP_AUTOIP */





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#if LWIP_IGMP





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  igmp_init();





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#endif /* LWIP_IGMP */





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#if LWIP_DNS





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  dns_init();





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#endif /* LWIP_DNS */





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#if LWIP_TIMERS





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  sys_timeouts_init();





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#endif /* LWIP_TIMERS */





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}