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00001 /** 00002 * @file 00003 * Modules initialization 00004 * 00005 */ 00006 00007 /* 00008 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00009 * All rights reserved. 00010 * 00011 * Redistribution and use in source and binary forms, with or without modification, 00012 * are permitted provided that the following conditions are met: 00013 * 00014 * 1. Redistributions of source code must retain the above copyright notice, 00015 * this list of conditions and the following disclaimer. 00016 * 2. Redistributions in binary form must reproduce the above copyright notice, 00017 * this list of conditions and the following disclaimer in the documentation 00018 * and/or other materials provided with the distribution. 00019 * 3. The name of the author may not be used to endorse or promote products 00020 * derived from this software without specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00023 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00024 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00025 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00026 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00027 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00028 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00029 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00030 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00031 * OF SUCH DAMAGE. 00032 * 00033 * This file is part of the lwIP TCP/IP stack. 00034 * 00035 * Author: Adam Dunkels <adam@sics.se> 00036 * 00037 */ 00038 00039 #include "lwip/opt.h" 00040 00041 #include "lwip/init.h" 00042 #include "lwip/stats.h" 00043 #include "lwip/sys.h" 00044 #include "lwip/mem.h" 00045 #include "lwip/memp.h" 00046 #include "lwip/pbuf.h" 00047 #include "lwip/netif.h" 00048 #include "lwip/sockets.h" 00049 #include "lwip/ip.h" 00050 #include "lwip/raw.h" 00051 #include "lwip/udp.h" 00052 #include "lwip/tcp.h" 00053 #include "lwip/snmp_msg.h" 00054 #include "lwip/autoip.h" 00055 #include "lwip/igmp.h" 00056 #include "lwip/dns.h" 00057 #include "netif/etharp.h" 00058 00059 /* Compile-time sanity checks for configuration errors. 00060 * These can be done independently of LWIP_DEBUG, without penalty. 00061 */ 00062 #ifndef BYTE_ORDER 00063 #error "BYTE_ORDER is not defined, you have to define it in your cc.h" 00064 #endif 00065 #if (!IP_SOF_BROADCAST && IP_SOF_BROADCAST_RECV) 00066 #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" 00067 #endif 00068 #if (!LWIP_ARP && ARP_QUEUEING) 00069 #error "If you want to use ARP Queueing, you have to define LWIP_ARP=1 in your lwipopts.h" 00070 #endif 00071 #if (!LWIP_UDP && LWIP_UDPLITE) 00072 #error "If you want to use UDP Lite, you have to define LWIP_UDP=1 in your lwipopts.h" 00073 #endif 00074 #if (!LWIP_UDP && LWIP_SNMP) 00075 #error "If you want to use SNMP, you have to define LWIP_UDP=1 in your lwipopts.h" 00076 #endif 00077 #if (!LWIP_UDP && LWIP_DHCP) 00078 #error "If you want to use DHCP, you have to define LWIP_UDP=1 in your lwipopts.h" 00079 #endif 00080 #if (!LWIP_UDP && LWIP_IGMP) 00081 #error "If you want to use IGMP, you have to define LWIP_UDP=1 in your lwipopts.h" 00082 #endif 00083 #if (!LWIP_UDP && LWIP_DNS) 00084 #error "If you want to use DNS, you have to define LWIP_UDP=1 in your lwipopts.h" 00085 #endif 00086 #if (LWIP_ARP && (ARP_TABLE_SIZE > 0x7f)) 00087 #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" 00088 #endif 00089 #if (LWIP_ARP && ARP_QUEUEING && (MEMP_NUM_ARP_QUEUE<=0)) 00090 #error "If you want to use ARP Queueing, you have to define MEMP_NUM_ARP_QUEUE>=1 in your lwipopts.h" 00091 #endif 00092 #if (LWIP_RAW && (MEMP_NUM_RAW_PCB<=0)) 00093 #error "If you want to use RAW, you have to define MEMP_NUM_RAW_PCB>=1 in your lwipopts.h" 00094 #endif 00095 #if (LWIP_UDP && (MEMP_NUM_UDP_PCB<=0)) 00096 #error "If you want to use UDP, you have to define MEMP_NUM_UDP_PCB>=1 in your lwipopts.h" 00097 #endif 00098 #if (LWIP_TCP && (MEMP_NUM_TCP_PCB<=0)) 00099 #error "If you want to use TCP, you have to define MEMP_NUM_TCP_PCB>=1 in your lwipopts.h" 00100 #endif 00101 #if (LWIP_TCP && (TCP_WND > 0xffff)) 00102 #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" 00103 #endif 00104 #if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff)) 00105 #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" 00106 #endif 00107 #if (LWIP_TCP && ((TCP_MAXRTX > 12) || (TCP_SYNMAXRTX > 12))) 00108 #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" 00109 #endif 00110 #if (LWIP_TCP && TCP_LISTEN_BACKLOG && (TCP_DEFAULT_LISTEN_BACKLOG < 0) || (TCP_DEFAULT_LISTEN_BACKLOG > 0xff)) 00111 #error "If you want to use TCP backlog, TCP_DEFAULT_LISTEN_BACKLOG must fit into an u8_t" 00112 #endif 00113 #if (LWIP_IGMP && (MEMP_NUM_IGMP_GROUP<=1)) 00114 #error "If you want to use IGMP, you have to define MEMP_NUM_IGMP_GROUP>1 in your lwipopts.h" 00115 #endif 00116 #if (PPP_SUPPORT && (NO_SYS==1)) 00117 #error "If you want to use PPP, you have to define NO_SYS=0 in your lwipopts.h" 00118 #endif 00119 #if (LWIP_NETIF_API && (NO_SYS==1)) 00120 #error "If you want to use NETIF API, you have to define NO_SYS=0 in your lwipopts.h" 00121 #endif 00122 #if ((LWIP_SOCKET || LWIP_NETCONN) && (NO_SYS==1)) 00123 #error "If you want to use Sequential API, you have to define NO_SYS=0 in your lwipopts.h" 00124 #endif 00125 #if ((LWIP_NETCONN || LWIP_SOCKET) && (MEMP_NUM_TCPIP_MSG_API<=0)) 00126 #error "If you want to use Sequential API, you have to define MEMP_NUM_TCPIP_MSG_API>=1 in your lwipopts.h" 00127 #endif 00128 #if (!LWIP_NETCONN && LWIP_SOCKET) 00129 #error "If you want to use Socket API, you have to define LWIP_NETCONN=1 in your lwipopts.h" 00130 #endif 00131 #if (((!LWIP_DHCP) || (!LWIP_AUTOIP)) && LWIP_DHCP_AUTOIP_COOP) 00132 #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" 00133 #endif 00134 #if (((!LWIP_DHCP) || (!LWIP_ARP)) && DHCP_DOES_ARP_CHECK) 00135 #error "If you want to use DHCP ARP checking, you have to define LWIP_DHCP=1 and LWIP_ARP=1 in your lwipopts.h" 00136 #endif 00137 #if (!LWIP_ARP && LWIP_AUTOIP) 00138 #error "If you want to use AUTOIP, you have to define LWIP_ARP=1 in your lwipopts.h" 00139 #endif 00140 #if (LWIP_SNMP && (SNMP_CONCURRENT_REQUESTS<=0)) 00141 #error "If you want to use SNMP, you have to define SNMP_CONCURRENT_REQUESTS>=1 in your lwipopts.h" 00142 #endif 00143 #if (LWIP_SNMP && (SNMP_TRAP_DESTINATIONS<=0)) 00144 #error "If you want to use SNMP, you have to define SNMP_TRAP_DESTINATIONS>=1 in your lwipopts.h" 00145 #endif 00146 #if (LWIP_TCP && ((LWIP_EVENT_API && LWIP_CALLBACK_API) || (!LWIP_EVENT_API && !LWIP_CALLBACK_API))) 00147 #error "One and exactly one of LWIP_EVENT_API and LWIP_CALLBACK_API has to be enabled in your lwipopts.h" 00148 #endif 00149 /* There must be sufficient timeouts, taking into account requirements of the subsystems. */ 00150 #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))) 00151 #error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts" 00152 #endif 00153 #if (IP_REASSEMBLY && (MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS)) 00154 #error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!" 00155 #endif 00156 #if (MEM_LIBC_MALLOC && MEM_USE_POOLS) 00157 #error "MEM_LIBC_MALLOC and MEM_USE_POOLS may not both be simultaneously enabled in your lwipopts.h" 00158 #endif 00159 #if (MEM_USE_POOLS && !MEMP_USE_CUSTOM_POOLS) 00160 #error "MEM_USE_POOLS requires custom pools (MEMP_USE_CUSTOM_POOLS) to be enabled in your lwipopts.h" 00161 #endif 00162 #if (PBUF_POOL_BUFSIZE <= MEM_ALIGNMENT) 00163 #error "PBUF_POOL_BUFSIZE must be greater than MEM_ALIGNMENT or the offset may take the full first pbuf" 00164 #endif 00165 #if (TCP_QUEUE_OOSEQ && !LWIP_TCP) 00166 #error "TCP_QUEUE_OOSEQ requires LWIP_TCP" 00167 #endif 00168 #if (DNS_LOCAL_HOSTLIST && !DNS_LOCAL_HOSTLIST_IS_DYNAMIC && !(defined(DNS_LOCAL_HOSTLIST_INIT))) 00169 #error "you have to define define DNS_LOCAL_HOSTLIST_INIT {{'host1', 0x123}, {'host2', 0x234}} to initialize DNS_LOCAL_HOSTLIST" 00170 #endif 00171 00172 00173 /* Compile-time checks for deprecated options. 00174 */ 00175 #ifdef MEMP_NUM_TCPIP_MSG 00176 #error "MEMP_NUM_TCPIP_MSG option is deprecated. Remove it from your lwipopts.h." 00177 #endif 00178 #ifdef MEMP_NUM_API_MSG 00179 #error "MEMP_NUM_API_MSG option is deprecated. Remove it from your lwipopts.h." 00180 #endif 00181 #ifdef TCP_REXMIT_DEBUG 00182 #error "TCP_REXMIT_DEBUG option is deprecated. Remove it from your lwipopts.h." 00183 #endif 00184 #ifdef RAW_STATS 00185 #error "RAW_STATS option is deprecated. Remove it from your lwipopts.h." 00186 #endif 00187 #ifdef ETHARP_QUEUE_FIRST 00188 #error "ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h." 00189 #endif 00190 #ifdef ETHARP_ALWAYS_INSERT 00191 #error "ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h." 00192 #endif 00193 #if SO_REUSE 00194 /* I removed the lot since this was an ugly hack. It broke the raw-API. 00195 It also came with many ugly goto's, Christiaan Simons. */ 00196 #error "SO_REUSE currently unavailable, this was a hack" 00197 #endif 00198 00199 #ifdef LWIP_DEBUG 00200 static void 00201 lwip_sanity_check(void) 00202 { 00203 /* Warnings */ 00204 #if LWIP_NETCONN 00205 if (MEMP_NUM_NETCONN > (MEMP_NUM_TCP_PCB+MEMP_NUM_TCP_PCB_LISTEN+MEMP_NUM_UDP_PCB+MEMP_NUM_RAW_PCB)) 00206 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")); 00207 #endif /* LWIP_NETCONN */ 00208 #if LWIP_TCP 00209 if (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN) 00210 LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN\n")); 00211 if (TCP_SND_BUF < 2 * TCP_MSS) 00212 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")); 00213 if (TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF/TCP_MSS))) 00214 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")); 00215 if (TCP_SNDLOWAT > TCP_SND_BUF) 00216 LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than or equal to TCP_SND_BUF.\n")); 00217 if (TCP_WND > (PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE)) 00218 LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE\n")); 00219 if (TCP_WND < TCP_MSS) 00220 LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_WND is smaller than MSS\n")); 00221 #endif /* LWIP_TCP */ 00222 } 00223 #else /* LWIP_DEBUG */ 00224 #define lwip_sanity_check() 00225 #endif /* LWIP_DEBUG */ 00226 00227 /** 00228 * Perform Sanity check of user-configurable values, and initialize all modules. 00229 */ 00230 void 00231 lwip_init(void) 00232 { 00233 /* Sanity check user-configurable values */ 00234 lwip_sanity_check(); 00235 00236 /* Modules initialization */ 00237 stats_init(); 00238 sys_init(); 00239 mem_init(); 00240 memp_init(); 00241 pbuf_init(); 00242 netif_init(); 00243 #if LWIP_SOCKET 00244 lwip_socket_init(); 00245 #endif /* LWIP_SOCKET */ 00246 ip_init(); 00247 #if LWIP_ARP 00248 etharp_init(); 00249 #endif /* LWIP_ARP */ 00250 #if LWIP_RAW 00251 raw_init(); 00252 #endif /* LWIP_RAW */ 00253 #if LWIP_UDP 00254 udp_init(); 00255 #endif /* LWIP_UDP */ 00256 #if LWIP_TCP 00257 tcp_init(); 00258 #endif /* LWIP_TCP */ 00259 #if LWIP_SNMP 00260 snmp_init(); 00261 #endif /* LWIP_SNMP */ 00262 #if LWIP_AUTOIP 00263 autoip_init(); 00264 #endif /* LWIP_AUTOIP */ 00265 #if LWIP_IGMP 00266 igmp_init(); 00267 #endif /* LWIP_IGMP */ 00268 #if LWIP_DNS 00269 dns_init(); 00270 #endif /* LWIP_DNS */ 00271 }
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