lwip/src/core/init.c

/**
 * @file
 * Modules initialization
 *
 */

/*
 * 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>
 *
 */

#include "lwip/opt.h"

#include "lwip/init.h"
#include "lwip/stats.h"
#include "lwip/sys.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/sockets.h"
#include "lwip/ip.h"
#include "lwip/raw.h"
#include "lwip/udp.h"
#include "lwip/tcp.h"
#include "lwip/autoip.h"
#include "lwip/igmp.h"
#include "lwip/dns.h"
#include "netif/etharp.h"

/* Compile-time sanity checks for configuration errors.
 * These can be done independently of LWIP_DEBUG, without penalty.
 */
#ifndef BYTE_ORDER
  #error "BYTE_ORDER is not defined, you have to define it in your cc.h"
#endif
#if (!LWIP_ARP && ARP_QUEUEING)
  #error "If you want to use ARP Queueing, you have to define LWIP_ARP=1 in your lwipopts.h"
#endif
#if (!LWIP_UDP && LWIP_UDPLITE)
  #error "If you want to use UDP Lite, you have to define LWIP_UDP=1 in your lwipopts.h"
#endif
#if (!LWIP_UDP && LWIP_SNMP)
  #error "If you want to use SNMP, you have to define LWIP_UDP=1 in your lwipopts.h"
#endif
#if (!LWIP_UDP && LWIP_DHCP)
  #error "If you want to use DHCP, you have to define LWIP_UDP=1 in your lwipopts.h"
#endif
#if (!LWIP_UDP && LWIP_IGMP)
  #error "If you want to use IGMP, you have to define LWIP_UDP=1 in your lwipopts.h"
#endif
#if (!LWIP_UDP && LWIP_DNS)
  #error "If you want to use DNS, you have to define LWIP_UDP=1 in your lwipopts.h"
#endif
#if (LWIP_ARP && (ARP_TABLE_SIZE > 0x7f))
  #error "If you want to use ARP, ARP_TABLE_SIZE must fit in an s8_t, so, you have to reduce it in your lwipopts.h"
#endif
#if (LWIP_ARP && ARP_QUEUEING && (MEMP_NUM_ARP_QUEUE<=0))
  #error "If you want to use ARP Queueing, you have to define MEMP_NUM_ARP_QUEUE>=1 in your lwipopts.h"
#endif
#if (LWIP_RAW && (MEMP_NUM_RAW_PCB<=0))
  #error "If you want to use RAW, you have to define MEMP_NUM_RAW_PCB>=1 in your lwipopts.h"
#endif
#if (LWIP_UDP && (MEMP_NUM_UDP_PCB<=0))
  #error "If you want to use UDP, you have to define MEMP_NUM_UDP_PCB>=1 in your lwipopts.h"
#endif
#if (LWIP_TCP && (MEMP_NUM_TCP_PCB<=0))
  #error "If you want to use TCP, you have to define MEMP_NUM_TCP_PCB>=1 in your lwipopts.h"
#endif
#if (LWIP_TCP && (TCP_WND > 0xffff))
  #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"
#endif
#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff))
  #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"
#endif
#if (LWIP_TCP && ((TCP_MAXRTX > 12) || (TCP_SYNMAXRTX > 12)))
  #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"
#endif
#if (LWIP_TCP && TCP_LISTEN_BACKLOG && (TCP_DEFAULT_LISTEN_BACKLOG < 0) || (TCP_DEFAULT_LISTEN_BACKLOG > 0xff))
  #error "If you want to use TCP backlog, TCP_DEFAULT_LISTEN_BACKLOG must fit into an u8_t"
#endif
#if (LWIP_IGMP && (MEMP_NUM_IGMP_GROUP<=1))
  #error "If you want to use IGMP, you have to define MEMP_NUM_IGMP_GROUP>1 in your lwipopts.h"
#endif
#if (PPP_SUPPORT && (NO_SYS==1))
  #error "If you want to use PPP, you have to define NO_SYS=0 in your lwipopts.h"
#endif
#if (LWIP_NETIF_API && (NO_SYS==1))
  #error "If you want to use NETIF API, you have to define NO_SYS=0 in your lwipopts.h"
#endif
#if ((LWIP_SOCKET || LWIP_NETCONN) && (NO_SYS==1))
  #error "If you want to use Sequential API, you have to define NO_SYS=0 in your lwipopts.h"
#endif
#if ((LWIP_NETCONN || LWIP_SOCKET) && (MEMP_NUM_TCPIP_MSG_API<=0))
  #error "If you want to use Sequential API, you have to define MEMP_NUM_TCPIP_MSG_API>=1 in your lwipopts.h"
#endif
#if (!LWIP_NETCONN && LWIP_SOCKET)
  #error "If you want to use Socket API, you have to define LWIP_NETCONN=1 in your lwipopts.h"
#endif
#if (((!LWIP_DHCP) || (!LWIP_AUTOIP)) && LWIP_DHCP_AUTOIP_COOP)
  #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"
#endif
#if (((!LWIP_DHCP) || (!LWIP_ARP)) && DHCP_DOES_ARP_CHECK)
  #error "If you want to use DHCP ARP checking, you have to define LWIP_DHCP=1 and LWIP_ARP=1 in your lwipopts.h"
#endif
#if (!LWIP_ARP && LWIP_AUTOIP)
  #error "If you want to use AUTOIP, you have to define LWIP_ARP=1 in your lwipopts.h"
#endif
#if (LWIP_SNMP && (SNMP_CONCURRENT_REQUESTS<=0))
  #error "If you want to use SNMP, you have to define SNMP_CONCURRENT_REQUESTS>=1 in your lwipopts.h"
#endif
#if (LWIP_SNMP && (SNMP_TRAP_DESTINATIONS<=0))
  #error "If you want to use SNMP, you have to define SNMP_TRAP_DESTINATIONS>=1 in your lwipopts.h"
#endif
#if (LWIP_TCP && ((LWIP_EVENT_API && LWIP_CALLBACK_API) || (!LWIP_EVENT_API && !LWIP_CALLBACK_API)))
  #error "One and exactly one of LWIP_EVENT_API and LWIP_CALLBACK_API has to be enabled in your lwipopts.h"
#endif
/* There must be sufficient timeouts, taking into account requirements of the subsystems. */
#if ((NO_SYS==0) && (MEMP_NUM_SYS_TIMEOUT < (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT)))
  #error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts"
#endif
#if (IP_REASSEMBLY && (MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS))
  #error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!"
#endif
#if (MEM_LIBC_MALLOC && MEM_USE_POOLS)
  #error "MEM_LIBC_MALLOC and MEM_USE_POOLS may not both be simultaneously enabled in your lwipopts.h"
#endif
#if (MEM_USE_POOLS && !MEMP_USE_CUSTOM_POOLS)
  #error "MEM_USE_POOLS requires custom pools (MEMP_USE_CUSTOM_POOLS) to be enabled in your lwipopts.h"
#endif


/* Compile-time checks for deprecated options.
 */
#ifdef MEMP_NUM_TCPIP_MSG
  #error "MEMP_NUM_TCPIP_MSG option is deprecated. Remove it from your lwipopts.h."
#endif
#ifdef MEMP_NUM_API_MSG
  #error "MEMP_NUM_API_MSG option is deprecated. Remove it from your lwipopts.h."
#endif
#ifdef TCP_REXMIT_DEBUG
  #error "TCP_REXMIT_DEBUG option is deprecated. Remove it from your lwipopts.h."
#endif
#ifdef RAW_STATS
  #error "RAW_STATS option is deprecated. Remove it from your lwipopts.h."
#endif
#ifdef ETHARP_QUEUE_FIRST
  #error "ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h."
#endif
#ifdef ETHARP_ALWAYS_INSERT
  #error "ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h."
#endif
#if SO_REUSE
/* I removed the lot since this was an ugly hack. It broke the raw-API.
   It also came with many ugly goto's, Christiaan Simons. */
  #error "SO_REUSE currently unavailable, this was a hack"
#endif

#ifdef LWIP_DEBUG
static void
lwip_sanity_check(void)
{
  /* Warnings */
#if LWIP_NETCONN
  if (MEMP_NUM_NETCONN > (MEMP_NUM_TCP_PCB+MEMP_NUM_TCP_PCB_LISTEN+MEMP_NUM_UDP_PCB+MEMP_NUM_RAW_PCB))
    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"));
#endif /* LWIP_NETCONN */
#if LWIP_TCP
  if (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN)
    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN\n"));
  if (TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF/TCP_MSS)))
    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"));
  if (TCP_SNDLOWAT > TCP_SND_BUF)
    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than or equal to TCP_SND_BUF.\n"));
  if (TCP_WND > (PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE))
    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE\n"));
  if (TCP_WND < TCP_MSS)
    LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is smaller than MSS\n"));
#endif /* LWIP_TCP */
}
#else  /* LWIP_DEBUG */
#define lwip_sanity_check()
#endif /* LWIP_DEBUG */

/**
 * Perform Sanity check of user-configurable values, and initialize all modules.
 */
void
lwip_init(void)
{
  /* Sanity check user-configurable values */
  lwip_sanity_check();

  /* Modules initialization */
  stats_init();
  sys_init();
  mem_init();
  memp_init();
  pbuf_init();
  netif_init();
#if LWIP_SOCKET
  lwip_socket_init();
#endif /* LWIP_SOCKET */
  ip_init();
#if LWIP_ARP
  etharp_init();
#endif /* LWIP_ARP */
#if LWIP_RAW
  raw_init();
#endif /* LWIP_RAW */
#if LWIP_UDP
  udp_init();
#endif /* LWIP_UDP */
#if LWIP_TCP
  tcp_init();
#endif /* LWIP_TCP */
#if LWIP_AUTOIP
  autoip_init();
#endif /* LWIP_AUTOIP */
#if LWIP_IGMP
  igmp_init();
#endif /* LWIP_IGMP */
#if LWIP_DNS
  dns_init();
#endif /* LWIP_DNS */
}
Commit	Line	Data
	1	/**
	2	* @file
	3	* Modules initialization
	4	*
	5	*/
	6
	7	/*
	8	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
	9	* All rights reserved.
	10	*
	11	* Redistribution and use in source and binary forms, with or without modification,
	12	* are permitted provided that the following conditions are met:
	13	*
	14	* 1. Redistributions of source code must retain the above copyright notice,
	15	* this list of conditions and the following disclaimer.
	16	* 2. Redistributions in binary form must reproduce the above copyright notice,
	17	* this list of conditions and the following disclaimer in the documentation
	18	* and/or other materials provided with the distribution.
	19	* 3. The name of the author may not be used to endorse or promote products
	20	* derived from this software without specific prior written permission.
	21	*
	22	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
	23	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	24	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
	25	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	26	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
	27	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	28	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	29	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	30	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
	31	* OF SUCH DAMAGE.
	32	*
	33	* This file is part of the lwIP TCP/IP stack.
	34	*
	35	* Author: Adam Dunkels <adam@sics.se>
	36	*
	37	*/
	38
	39	#include "lwip/opt.h"
	40
	41	#include "lwip/init.h"
	42	#include "lwip/stats.h"
	43	#include "lwip/sys.h"
	44	#include "lwip/mem.h"
	45	#include "lwip/memp.h"
	46	#include "lwip/pbuf.h"
	47	#include "lwip/netif.h"
	48	#include "lwip/sockets.h"
	49	#include "lwip/ip.h"
	50	#include "lwip/raw.h"
	51	#include "lwip/udp.h"
	52	#include "lwip/tcp.h"
	53	#include "lwip/autoip.h"
	54	#include "lwip/igmp.h"
	55	#include "lwip/dns.h"
	56	#include "netif/etharp.h"
	57
	58	/* Compile-time sanity checks for configuration errors.
	59	* These can be done independently of LWIP_DEBUG, without penalty.
	60	*/
	61	#ifndef BYTE_ORDER
	62	#error "BYTE_ORDER is not defined, you have to define it in your cc.h"
	63	#endif
	64	#if (!LWIP_ARP && ARP_QUEUEING)
	65	#error "If you want to use ARP Queueing, you have to define LWIP_ARP=1 in your lwipopts.h"
	66	#endif
	67	#if (!LWIP_UDP && LWIP_UDPLITE)
	68	#error "If you want to use UDP Lite, you have to define LWIP_UDP=1 in your lwipopts.h"
	69	#endif
	70	#if (!LWIP_UDP && LWIP_SNMP)
	71	#error "If you want to use SNMP, you have to define LWIP_UDP=1 in your lwipopts.h"
	72	#endif
	73	#if (!LWIP_UDP && LWIP_DHCP)
	74	#error "If you want to use DHCP, you have to define LWIP_UDP=1 in your lwipopts.h"
	75	#endif
	76	#if (!LWIP_UDP && LWIP_IGMP)
	77	#error "If you want to use IGMP, you have to define LWIP_UDP=1 in your lwipopts.h"
	78	#endif
	79	#if (!LWIP_UDP && LWIP_DNS)
	80	#error "If you want to use DNS, you have to define LWIP_UDP=1 in your lwipopts.h"
	81	#endif
	82	#if (LWIP_ARP && (ARP_TABLE_SIZE > 0x7f))
	83	#error "If you want to use ARP, ARP_TABLE_SIZE must fit in an s8_t, so, you have to reduce it in your lwipopts.h"
	84	#endif
	85	#if (LWIP_ARP && ARP_QUEUEING && (MEMP_NUM_ARP_QUEUE<=0))
	86	#error "If you want to use ARP Queueing, you have to define MEMP_NUM_ARP_QUEUE>=1 in your lwipopts.h"
	87	#endif
	88	#if (LWIP_RAW && (MEMP_NUM_RAW_PCB<=0))
	89	#error "If you want to use RAW, you have to define MEMP_NUM_RAW_PCB>=1 in your lwipopts.h"
	90	#endif
	91	#if (LWIP_UDP && (MEMP_NUM_UDP_PCB<=0))
	92	#error "If you want to use UDP, you have to define MEMP_NUM_UDP_PCB>=1 in your lwipopts.h"
	93	#endif
	94	#if (LWIP_TCP && (MEMP_NUM_TCP_PCB<=0))
	95	#error "If you want to use TCP, you have to define MEMP_NUM_TCP_PCB>=1 in your lwipopts.h"
	96	#endif
	97	#if (LWIP_TCP && (TCP_WND > 0xffff))
	98	#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"
	99	#endif
	100	#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff))
	101	#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"
	102	#endif
	103	#if (LWIP_TCP && ((TCP_MAXRTX > 12) \|\| (TCP_SYNMAXRTX > 12)))
	104	#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"
	105	#endif
	106	#if (LWIP_TCP && TCP_LISTEN_BACKLOG && (TCP_DEFAULT_LISTEN_BACKLOG < 0) \|\| (TCP_DEFAULT_LISTEN_BACKLOG > 0xff))
	107	#error "If you want to use TCP backlog, TCP_DEFAULT_LISTEN_BACKLOG must fit into an u8_t"
	108	#endif
	109	#if (LWIP_IGMP && (MEMP_NUM_IGMP_GROUP<=1))
	110	#error "If you want to use IGMP, you have to define MEMP_NUM_IGMP_GROUP>1 in your lwipopts.h"
	111	#endif
	112	#if (PPP_SUPPORT && (NO_SYS==1))
	113	#error "If you want to use PPP, you have to define NO_SYS=0 in your lwipopts.h"
	114	#endif
	115	#if (LWIP_NETIF_API && (NO_SYS==1))
	116	#error "If you want to use NETIF API, you have to define NO_SYS=0 in your lwipopts.h"
	117	#endif
	118	#if ((LWIP_SOCKET \|\| LWIP_NETCONN) && (NO_SYS==1))
	119	#error "If you want to use Sequential API, you have to define NO_SYS=0 in your lwipopts.h"
	120	#endif
	121	#if ((LWIP_NETCONN \|\| LWIP_SOCKET) && (MEMP_NUM_TCPIP_MSG_API<=0))
	122	#error "If you want to use Sequential API, you have to define MEMP_NUM_TCPIP_MSG_API>=1 in your lwipopts.h"
	123	#endif
	124	#if (!LWIP_NETCONN && LWIP_SOCKET)
	125	#error "If you want to use Socket API, you have to define LWIP_NETCONN=1 in your lwipopts.h"
	126	#endif
	127	#if (((!LWIP_DHCP) \|\| (!LWIP_AUTOIP)) && LWIP_DHCP_AUTOIP_COOP)
	128	#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"
	129	#endif
	130	#if (((!LWIP_DHCP) \|\| (!LWIP_ARP)) && DHCP_DOES_ARP_CHECK)
	131	#error "If you want to use DHCP ARP checking, you have to define LWIP_DHCP=1 and LWIP_ARP=1 in your lwipopts.h"
	132	#endif
	133	#if (!LWIP_ARP && LWIP_AUTOIP)
	134	#error "If you want to use AUTOIP, you have to define LWIP_ARP=1 in your lwipopts.h"
	135	#endif
	136	#if (LWIP_SNMP && (SNMP_CONCURRENT_REQUESTS<=0))
	137	#error "If you want to use SNMP, you have to define SNMP_CONCURRENT_REQUESTS>=1 in your lwipopts.h"
	138	#endif
	139	#if (LWIP_SNMP && (SNMP_TRAP_DESTINATIONS<=0))
	140	#error "If you want to use SNMP, you have to define SNMP_TRAP_DESTINATIONS>=1 in your lwipopts.h"
	141	#endif
	142	#if (LWIP_TCP && ((LWIP_EVENT_API && LWIP_CALLBACK_API) \|\| (!LWIP_EVENT_API && !LWIP_CALLBACK_API)))
	143	#error "One and exactly one of LWIP_EVENT_API and LWIP_CALLBACK_API has to be enabled in your lwipopts.h"
	144	#endif
	145	/* There must be sufficient timeouts, taking into account requirements of the subsystems. */
	146	#if ((NO_SYS==0) && (MEMP_NUM_SYS_TIMEOUT < (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT)))
	147	#error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts"
	148	#endif
	149	#if (IP_REASSEMBLY && (MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS))
	150	#error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!"
	151	#endif
	152	#if (MEM_LIBC_MALLOC && MEM_USE_POOLS)
	153	#error "MEM_LIBC_MALLOC and MEM_USE_POOLS may not both be simultaneously enabled in your lwipopts.h"
	154	#endif
	155	#if (MEM_USE_POOLS && !MEMP_USE_CUSTOM_POOLS)
	156	#error "MEM_USE_POOLS requires custom pools (MEMP_USE_CUSTOM_POOLS) to be enabled in your lwipopts.h"
	157	#endif
	158
	159
	160	/* Compile-time checks for deprecated options.
	161	*/
	162	#ifdef MEMP_NUM_TCPIP_MSG
	163	#error "MEMP_NUM_TCPIP_MSG option is deprecated. Remove it from your lwipopts.h."
	164	#endif
	165	#ifdef MEMP_NUM_API_MSG
	166	#error "MEMP_NUM_API_MSG option is deprecated. Remove it from your lwipopts.h."
	167	#endif
	168	#ifdef TCP_REXMIT_DEBUG
	169	#error "TCP_REXMIT_DEBUG option is deprecated. Remove it from your lwipopts.h."
	170	#endif
	171	#ifdef RAW_STATS
	172	#error "RAW_STATS option is deprecated. Remove it from your lwipopts.h."
	173	#endif
	174	#ifdef ETHARP_QUEUE_FIRST
	175	#error "ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h."
	176	#endif
	177	#ifdef ETHARP_ALWAYS_INSERT
	178	#error "ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h."
	179	#endif
	180	#if SO_REUSE
	181	/* I removed the lot since this was an ugly hack. It broke the raw-API.
	182	It also came with many ugly goto's, Christiaan Simons. */
	183	#error "SO_REUSE currently unavailable, this was a hack"
	184	#endif
	185
	186	#ifdef LWIP_DEBUG
	187	static void
	188	lwip_sanity_check(void)
	189	{
	190	/* Warnings */
	191	#if LWIP_NETCONN
	192	if (MEMP_NUM_NETCONN > (MEMP_NUM_TCP_PCB+MEMP_NUM_TCP_PCB_LISTEN+MEMP_NUM_UDP_PCB+MEMP_NUM_RAW_PCB))
	193	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"));
	194	#endif /* LWIP_NETCONN */
	195	#if LWIP_TCP
	196	if (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN)
	197	LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN\n"));
	198	if (TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF/TCP_MSS)))
	199	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"));
	200	if (TCP_SNDLOWAT > TCP_SND_BUF)
	201	LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than or equal to TCP_SND_BUF.\n"));
	202	if (TCP_WND > (PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE))
	203	LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE\n"));
	204	if (TCP_WND < TCP_MSS)
	205	LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is smaller than MSS\n"));
	206	#endif /* LWIP_TCP */
	207	}
	208	#else /* LWIP_DEBUG */
	209	#define lwip_sanity_check()
	210	#endif /* LWIP_DEBUG */
	211
	212	/**
	213	* Perform Sanity check of user-configurable values, and initialize all modules.
	214	*/
	215	void
	216	lwip_init(void)
	217	{
	218	/* Sanity check user-configurable values */
	219	lwip_sanity_check();
	220
	221	/* Modules initialization */
	222	stats_init();
	223	sys_init();
	224	mem_init();
	225	memp_init();
	226	pbuf_init();
	227	netif_init();
	228	#if LWIP_SOCKET
	229	lwip_socket_init();
	230	#endif /* LWIP_SOCKET */
	231	ip_init();
	232	#if LWIP_ARP
	233	etharp_init();
	234	#endif /* LWIP_ARP */
	235	#if LWIP_RAW
	236	raw_init();
	237	#endif /* LWIP_RAW */
	238	#if LWIP_UDP
	239	udp_init();
	240	#endif /* LWIP_UDP */
	241	#if LWIP_TCP
	242	tcp_init();
	243	#endif /* LWIP_TCP */
	244	#if LWIP_AUTOIP
	245	autoip_init();
	246	#endif /* LWIP_AUTOIP */
	247	#if LWIP_IGMP
	248	igmp_init();
	249	#endif /* LWIP_IGMP */
	250	#if LWIP_DNS
	251	dns_init();
	252	#endif /* LWIP_DNS */
	253	}