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lwip/core/init.c
- Committer:
- rrajan8
- Date:
- 2013-03-06
- Revision:
- 8:92b57208ab99
- Parent:
- 0:ac1725ba162c
File content as of revision 8:92b57208ab99:
/** * @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_impl.h" #include "lwip/snmp_msg.h" #include "lwip/autoip.h" #include "lwip/igmp.h" #include "lwip/dns.h" #include "lwip/timers.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 (!IP_SOF_BROADCAST && IP_SOF_BROADCAST_RECV) #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" #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_SNMP) #error "If you want to use SNMP, 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_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 (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 LWIP_TIMERS && (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 #if (PBUF_POOL_BUFSIZE <= MEM_ALIGNMENT) #error "PBUF_POOL_BUFSIZE must be greater than MEM_ALIGNMENT or the offset may take the full first pbuf" #endif #if (TCP_QUEUE_OOSEQ && !LWIP_TCP) #error "TCP_QUEUE_OOSEQ requires LWIP_TCP" #endif #if (DNS_LOCAL_HOSTLIST && !DNS_LOCAL_HOSTLIST_IS_DYNAMIC && !(defined(DNS_LOCAL_HOSTLIST_INIT))) #error "you have to define define DNS_LOCAL_HOSTLIST_INIT {{'host1', 0x123}, {'host2', 0x234}} to initialize DNS_LOCAL_HOSTLIST" #endif #if PPP_SUPPORT && !PPPOS_SUPPORT & !PPPOE_SUPPORT #error "PPP_SUPPORT needs either PPPOS_SUPPORT or PPPOE_SUPPORT turned on" #endif #if !LWIP_ETHERNET && (LWIP_ARP || PPPOE_SUPPORT) #error "LWIP_ETHERNET needs to be turned on for LWIP_ARP or PPPOE_SUPPORT" #endif #if LWIP_IGMP && !defined(LWIP_RAND) #error "When using IGMP, LWIP_RAND() needs to be defined to a random-function returning an u32_t random value" #endif #if LWIP_TCPIP_CORE_LOCKING_INPUT && !LWIP_TCPIP_CORE_LOCKING #error "When using LWIP_TCPIP_CORE_LOCKING_INPUT, LWIP_TCPIP_CORE_LOCKING must be enabled, too" #endif #if LWIP_TCP && LWIP_NETIF_TX_SINGLE_PBUF && !TCP_OVERSIZE #error "LWIP_NETIF_TX_SINGLE_PBUF needs TCP_OVERSIZE enabled to create single-pbuf TCP packets" #endif #if IP_FRAG && IP_FRAG_USES_STATIC_BUF && LWIP_NETIF_TX_SINGLE_PBUF #error "LWIP_NETIF_TX_SINGLE_PBUF does not work with IP_FRAG_USES_STATIC_BUF==1 as that creates pbuf queues" #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 #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_BUF < 2 * TCP_MSS) 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")); 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 TCP_SND_BUF.\n")); if (TCP_SNDQUEUELOWAT >= TCP_SND_QUEUELEN) LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: TCP_SNDQUEUELOWAT must be less than TCP_SND_QUEUELEN.\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 */ #if LWIP_SOCKET /* Check that the SO_* socket options and SOF_* lwIP-internal flags match */ if (SO_ACCEPTCONN != SOF_ACCEPTCONN) LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_ACCEPTCONN != SOF_ACCEPTCONN\n")); if (SO_REUSEADDR != SOF_REUSEADDR) LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_REUSEADDR != SOF_REUSEADDR\n")); if (SO_KEEPALIVE != SOF_KEEPALIVE) LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_KEEPALIVE != SOF_KEEPALIVE\n")); if (SO_BROADCAST != SOF_BROADCAST) LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_BROADCAST != SOF_BROADCAST\n")); if (SO_LINGER != SOF_LINGER) LWIP_PLATFORM_DIAG(("lwip_sanity_check: WARNING: SO_LINGER != SOF_LINGER\n")); #endif /* LWIP_SOCKET */ } #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(); #if !NO_SYS sys_init(); #endif /* !NO_SYS */ 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_SNMP snmp_init(); #endif /* LWIP_SNMP */ #if LWIP_AUTOIP autoip_init(); #endif /* LWIP_AUTOIP */ #if LWIP_IGMP igmp_init(); #endif /* LWIP_IGMP */ #if LWIP_DNS dns_init(); #endif /* LWIP_DNS */ #if LWIP_TIMERS sys_timeouts_init(); #endif /* LWIP_TIMERS */ }