/** * @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 * */ #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: %d\n", (PBUF_POOL_SIZE*PBUF_POOL_BUFSIZE))); 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 */ }