FreeRTOS/Common/ethernet/lwIP_130/src/core/init.c

   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 }