303 lines
12 KiB
C
303 lines
12 KiB
C
/**
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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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}
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