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office

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/**

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* @file

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* Modules initialization

*

*/

/*

*

* 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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#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/priv/tcp_priv.h"

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#include "lwip/igmp.h"

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#include "lwip/dns.h"

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#include "lwip/timeouts.h"

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#include "lwip/etharp.h"

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#include "lwip/ip6.h"

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#include "lwip/nd6.h"

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#include "lwip/mld6.h"

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#include "lwip/api.h"

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#include "netif/ppp/ppp_opts.h"

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#include "netif/ppp/ppp_impl.h"

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#ifndef LWIP_SKIP_PACKING_CHECK

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#ifdef PACK_STRUCT_USE_INCLUDES

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# include "arch/bpstruct.h"

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#endif

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PACK_STRUCT_BEGIN

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struct packed_struct_test {

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PACK_STRUCT_FLD_8(u8_t dummy1);

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PACK_STRUCT_FIELD(u32_t dummy2);

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} PACK_STRUCT_STRUCT;

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PACK_STRUCT_END

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#ifdef PACK_STRUCT_USE_INCLUDES

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# include "arch/epstruct.h"

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#endif

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#define PACKED_STRUCT_TEST_EXPECTED_SIZE 5

#endif

/* 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_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_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_RAW && LWIP_MULTICAST_TX_OPTIONS)

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#error "If you want to use LWIP_MULTICAST_TX_OPTIONS, you have to define LWIP_UDP=1 and/or LWIP_RAW=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 !MEMP_MEM_MALLOC /* MEMP_NUM_* checks are disabled when not using the pool allocator */

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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_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_IGMP && !LWIP_MULTICAST_TX_OPTIONS)

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#error "If you want to use IGMP, you have to define LWIP_MULTICAST_TX_OPTIONS==1 in your lwipopts.h"

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#endif

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#if (LWIP_IGMP && !LWIP_IPV4)

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#error "IGMP needs LWIP_IPV4 enabled 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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/* There must be sufficient timeouts, taking into account requirements of the subsystems. */

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#if LWIP_TIMERS && (MEMP_NUM_SYS_TIMEOUT < LWIP_NUM_SYS_TIMEOUT_INTERNAL)

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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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#endif /* !MEMP_MEM_MALLOC */

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#if LWIP_WND_SCALE

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#if (LWIP_TCP && (TCP_WND > 0xffffffff))

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#error "If you want to use TCP, TCP_WND must fit in an u32_t, so, you have to reduce it in your lwipopts.h"

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#endif

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#if (LWIP_TCP && (TCP_RCV_SCALE > 14))

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#error "The maximum valid window scale value is 14!"

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#endif

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#if (LWIP_TCP && (TCP_WND > (0xFFFFU << TCP_RCV_SCALE)))

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#error "TCP_WND is bigger than the configured LWIP_WND_SCALE allows!"

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#endif

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#if (LWIP_TCP && ((TCP_WND >> TCP_RCV_SCALE) == 0))

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#error "TCP_WND is too small for the configured LWIP_WND_SCALE (results in zero window)!"

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#endif

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#else /* LWIP_WND_SCALE */

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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 (or enable window scaling)"

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#endif

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#endif /* LWIP_WND_SCALE */

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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_SND_QUEUELEN < 2))

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#error "TCP_SND_QUEUELEN must be at least 2 for no-copy TCP writes to work"

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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_TCP && LWIP_TCP_SACK_OUT && !TCP_QUEUE_OOSEQ)

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#error "To use LWIP_TCP_SACK_OUT, TCP_QUEUE_OOSEQ needs to be enabled"

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#endif

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#if (LWIP_TCP && LWIP_TCP_SACK_OUT && (LWIP_TCP_MAX_SACK_NUM < 1))

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#error "LWIP_TCP_MAX_SACK_NUM must be greater than 0"

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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_PPP_API && (NO_SYS==1))

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#error "If you want to use PPP API, you have to define NO_SYS=0 in your lwipopts.h"

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#endif

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#if (LWIP_PPP_API && (PPP_SUPPORT==0))

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#error "If you want to use PPP API, you have to enable PPP_SUPPORT 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_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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#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 (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 && !PPPOL2TP_SUPPORT

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#error "PPP_SUPPORT needs at least one of PPPOS_SUPPORT, PPPOE_SUPPORT or PPPOL2TP_SUPPORT turned on"

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#endif

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#if PPP_SUPPORT && !PPP_IPV4_SUPPORT && !PPP_IPV6_SUPPORT

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#error "PPP_SUPPORT needs PPP_IPV4_SUPPORT and/or PPP_IPV6_SUPPORT turned on"

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#endif

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#if PPP_SUPPORT && PPP_IPV4_SUPPORT && !LWIP_IPV4

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#error "PPP_IPV4_SUPPORT needs LWIP_IPV4 turned on"

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#endif

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#if PPP_SUPPORT && PPP_IPV6_SUPPORT && !LWIP_IPV6

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#error "PPP_IPV6_SUPPORT needs LWIP_IPV6 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_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 LWIP_NETCONN && LWIP_TCP

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#if NETCONN_COPY != TCP_WRITE_FLAG_COPY

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#error "NETCONN_COPY != TCP_WRITE_FLAG_COPY"

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#endif

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#if NETCONN_MORE != TCP_WRITE_FLAG_MORE

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#error "NETCONN_MORE != TCP_WRITE_FLAG_MORE"

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#endif

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#endif /* LWIP_NETCONN && 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_REUSEADDR != SOF_REUSEADDR

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#error "WARNING: SO_REUSEADDR != SOF_REUSEADDR"

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#endif

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#if SO_KEEPALIVE != SOF_KEEPALIVE

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#error "WARNING: SO_KEEPALIVE != SOF_KEEPALIVE"

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#endif

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#if SO_BROADCAST != SOF_BROADCAST

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#error "WARNING: SO_BROADCAST != SOF_BROADCAST"

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#endif

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#endif /* LWIP_SOCKET */

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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 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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#if !NO_SYS && LWIP_TCPIP_CORE_LOCKING && LWIP_COMPAT_MUTEX && !defined(LWIP_COMPAT_MUTEX_ALLOWED)

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#error "LWIP_COMPAT_MUTEX cannot prevent priority inversion. It is recommended to implement priority-aware mutexes. (Define LWIP_COMPAT_MUTEX_ALLOWED to disable this error.)"

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#endif

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#ifndef LWIP_DISABLE_TCP_SANITY_CHECKS

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#define LWIP_DISABLE_TCP_SANITY_CHECKS 0

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#endif

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#ifndef LWIP_DISABLE_MEMP_SANITY_CHECKS

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#define LWIP_DISABLE_MEMP_SANITY_CHECKS 0

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#endif

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/* MEMP sanity checks */

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#if MEMP_MEM_MALLOC

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#if !LWIP_DISABLE_MEMP_SANITY_CHECKS

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#if LWIP_NETCONN || LWIP_SOCKET

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#if !MEMP_NUM_NETCONN && LWIP_SOCKET

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#error "lwip_sanity_check: WARNING: MEMP_NUM_NETCONN cannot be 0 when using sockets!"

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#endif

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#else /* MEMP_MEM_MALLOC */

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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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#error "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. If you know what you are doing, define LWIP_DISABLE_MEMP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#endif /* LWIP_NETCONN || LWIP_SOCKET */

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#endif /* !LWIP_DISABLE_MEMP_SANITY_CHECKS */

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#if MEM_USE_POOLS

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#error "MEMP_MEM_MALLOC and MEM_USE_POOLS cannot be enabled at the same time"

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#endif

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#ifdef LWIP_HOOK_MEMP_AVAILABLE

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#error "LWIP_HOOK_MEMP_AVAILABLE doesn't make sense with MEMP_MEM_MALLOC"

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#endif

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#endif /* MEMP_MEM_MALLOC */

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/* TCP sanity checks */

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#if !LWIP_DISABLE_TCP_SANITY_CHECKS

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#if LWIP_TCP

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#if !MEMP_MEM_MALLOC && (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN)

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#error "lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if TCP_SND_BUF < (2 * TCP_MSS)

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#error "lwip_sanity_check: WARNING: TCP_SND_BUF must be at least as much as (2 * TCP_MSS) for things to work smoothly. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF / TCP_MSS))

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#error "lwip_sanity_check: WARNING: TCP_SND_QUEUELEN must be at least as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if TCP_SNDLOWAT >= TCP_SND_BUF

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#error "lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than TCP_SND_BUF. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if TCP_SNDLOWAT >= (0xFFFF - (4 * TCP_MSS))

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#error "lwip_sanity_check: WARNING: TCP_SNDLOWAT must at least be 4*MSS below u16_t overflow!"

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#endif

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#if TCP_SNDQUEUELOWAT >= TCP_SND_QUEUELEN

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#error "lwip_sanity_check: WARNING: TCP_SNDQUEUELOWAT must be less than TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (PBUF_POOL_BUFSIZE <= (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))

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#error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))))

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#error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#if TCP_WND < TCP_MSS

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#error "lwip_sanity_check: WARNING: TCP_WND is smaller than MSS. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."

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#endif

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#endif /* LWIP_TCP */

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#endif /* !LWIP_DISABLE_TCP_SANITY_CHECKS */

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/**

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* @ingroup lwip_nosys

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* Initialize all modules.

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* Use this in NO_SYS mode. Use tcpip_init() otherwise.

*/

void

lwip_init(void)

{

#ifndef LWIP_SKIP_CONST_CHECK

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int a = 0;

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LWIP_UNUSED_ARG(a);

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LWIP_ASSERT("LWIP_CONST_CAST not implemented correctly. Check your lwIP port.", LWIP_CONST_CAST(void *, &a) == &a);

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#endif

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#ifndef LWIP_SKIP_PACKING_CHECK

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  LWIP_ASSERT("Struct packing not implemented correctly. Check your lwIP port.", sizeof(struct packed_struct_test) == PACKED_STRUCT_TEST_EXPECTED_SIZE);

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#endif

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/* Modules initialization */

stats_init();

#if !NO_SYS

sys_init();