678 lines
18 KiB
C
678 lines
18 KiB
C
/**
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* \addtogroup uip
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* @{
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*/
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/**
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* \defgroup uipopt Configuration options for uIP
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* @{
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*
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* uIP is configured using the per-project configuration file
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* "uipopt.h". This file contains all compile-time options for uIP and
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* should be tweaked to match each specific project. The uIP
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* distribution contains a documented example "uipopt.h" that can be
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* copied and modified for each project.
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*
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* \note Contiki does not use the uipopt.h file to configure uIP, but
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* uses a per-port uip-conf.h file that should be edited instead.
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*/
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/**
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* \file
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* Configuration options for uIP.
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* \author Adam Dunkels <adam@dunkels.com>
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*
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* This file is used for tweaking various configuration options for
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* uIP. You should make a copy of this file into one of your project's
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* directories instead of editing this example "uipopt.h" file that
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* comes with the uIP distribution.
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*/
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/*
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* Copyright (c) 2001-2003, Adam Dunkels.
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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
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation 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
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the uIP TCP/IP stack.
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*
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*
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*/
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#ifndef UIPOPT_H_
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#define UIPOPT_H_
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#ifndef UIP_LITTLE_ENDIAN
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#define UIP_LITTLE_ENDIAN 3412
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#endif /* UIP_LITTLE_ENDIAN */
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#ifndef UIP_BIG_ENDIAN
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#define UIP_BIG_ENDIAN 1234
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#endif /* UIP_BIG_ENDIAN */
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#include "contiki-conf.h"
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptstaticconf Static configuration options
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* @{
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*
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* These configuration options can be used for setting the IP address
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* settings statically, but only if UIP_FIXEDADDR is set to 1. The
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* configuration options for a specific node includes IP address,
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* netmask and default router as well as the Ethernet address. The
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* netmask, default router and Ethernet address are applicable only
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* if uIP should be run over Ethernet.
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*
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* This options are meaningful only for the IPv4 code.
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*
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* All of these should be changed to suit your project.
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*/
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/**
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* Determines if uIP should use a fixed IP address or not.
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*
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* If uIP should use a fixed IP address, the settings are set in the
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* uipopt.h file. If not, the macros uip_sethostaddr(),
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* uip_setdraddr() and uip_setnetmask() should be used instead.
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*
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* \hideinitializer
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*/
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#define UIP_FIXEDADDR 0
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/**
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* Ping IP address assignment.
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*
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* uIP uses a "ping" packets for setting its own IP address if this
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* option is set. If so, uIP will start with an empty IP address and
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* the destination IP address of the first incoming "ping" (ICMP echo)
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* packet will be used for setting the hosts IP address.
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*
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* \note This works only if UIP_FIXEDADDR is 0.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_PINGADDRCONF
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#define UIP_PINGADDRCONF (UIP_CONF_PINGADDRCONF)
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#else /* UIP_CONF_PINGADDRCONF */
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#define UIP_PINGADDRCONF 0
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#endif /* UIP_CONF_PINGADDRCONF */
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/**
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* Specifies if the uIP ARP module should be compiled with a fixed
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* Ethernet MAC address or not.
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*
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* If this configuration option is 0, the macro uip_setethaddr() can
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* be used to specify the Ethernet address at run-time.
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*
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* \hideinitializer
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*/
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#define UIP_FIXEDETHADDR 0
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptip IP configuration options
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* @{
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*
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*/
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/**
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* The IP TTL (time to live) of IP packets sent by uIP.
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*
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* This should normally not be changed.
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*/
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#define UIP_TTL 64
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/**
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* The maximum time an IP fragment should wait in the reassembly
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* buffer before it is dropped.
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*
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*/
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#define UIP_REASS_MAXAGE 60 /*60s*/
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/**
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* Turn on support for IP packet reassembly.
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*
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* uIP supports reassembly of fragmented IP packets. This features
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* requires an additional amount of RAM to hold the reassembly buffer
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* and the reassembly code size is approximately 700 bytes. The
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* reassembly buffer is of the same size as the uip_buf buffer
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* (configured by UIP_BUFSIZE).
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*
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* \note IP packet reassembly is not heavily tested.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_REASSEMBLY
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#define UIP_REASSEMBLY (UIP_CONF_REASSEMBLY)
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#else /* UIP_CONF_REASSEMBLY */
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#define UIP_REASSEMBLY 0
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#endif /* UIP_CONF_REASSEMBLY */
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptipv6 IPv6 configuration options
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* @{
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*
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*/
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/** The maximum transmission unit at the IP Layer*/
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#define UIP_LINK_MTU 1280
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#ifndef UIP_CONF_IPV6
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/** Do we use IPv6 or not (default: no) */
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#define UIP_CONF_IPV6 0
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#endif
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#ifndef UIP_CONF_IPV6_QUEUE_PKT
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/** Do we do per %neighbor queuing during address resolution (default: no) */
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#define UIP_CONF_IPV6_QUEUE_PKT 0
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#endif
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#ifndef UIP_CONF_IPV6_CHECKS
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/** Do we do IPv6 consistency checks (highly recommended, default: yes) */
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#define UIP_CONF_IPV6_CHECKS 1
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#endif
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#ifndef UIP_CONF_IPV6_REASSEMBLY
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/** Do we do IPv6 fragmentation (default: no) */
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#define UIP_CONF_IPV6_REASSEMBLY 0
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#endif
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#ifndef UIP_CONF_NETIF_MAX_ADDRESSES
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/** Default number of IPv6 addresses associated to the node's interface */
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#define UIP_CONF_NETIF_MAX_ADDRESSES 3
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#endif
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#ifndef UIP_CONF_DS6_PREFIX_NBU
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/** Default number of IPv6 prefixes associated to the node's interface */
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#define UIP_CONF_DS6_PREFIX_NBU 2
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#endif
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#ifndef UIP_CONF_DS6_DEFRT_NBU
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/** Minimum number of default routers */
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#define UIP_CONF_DS6_DEFRT_NBU 2
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#endif
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptudp UDP configuration options
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* @{
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*
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* \note The UDP support in uIP is still not entirely complete; there
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* is no support for sending or receiving broadcast or multicast
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* packets, but it works well enough to support a number of vital
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* applications such as DNS queries, though
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*/
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/**
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* Toggles whether UDP support should be compiled in or not.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_UDP
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#define UIP_UDP UIP_CONF_UDP
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#else /* UIP_CONF_UDP */
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#define UIP_UDP 1
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#endif /* UIP_CONF_UDP */
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/**
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* Toggles if UDP checksums should be used or not.
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*
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* \note Support for UDP checksums is currently not included in uIP,
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* so this option has no function.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_UDP_CHECKSUMS
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#define UIP_UDP_CHECKSUMS (UIP_CONF_UDP_CHECKSUMS)
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#else
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#define UIP_UDP_CHECKSUMS (UIP_CONF_IPV6)
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#endif
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/**
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* The maximum amount of concurrent UDP connections.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_UDP_CONNS
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#define UIP_UDP_CONNS (UIP_CONF_UDP_CONNS)
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#else /* UIP_CONF_UDP_CONNS */
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#define UIP_UDP_CONNS 10
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#endif /* UIP_CONF_UDP_CONNS */
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/**
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* The name of the function that should be called when UDP datagrams arrive.
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*
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* \hideinitializer
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*/
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipopttcp TCP configuration options
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* @{
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*/
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/**
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* Toggles whether TCP support should be compiled in or not.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_TCP
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#define UIP_TCP (UIP_CONF_TCP)
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#else /* UIP_CONF_TCP */
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#define UIP_TCP 1
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#endif /* UIP_CONF_TCP */
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/**
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* Determines if support for opening connections from uIP should be
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* compiled in.
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*
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* If the applications that are running on top of uIP for this project
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* do not need to open outgoing TCP connections, this configuration
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* option can be turned off to reduce the code size of uIP.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_ACTIVE_OPEN
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#define UIP_ACTIVE_OPEN 1
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#else /* UIP_CONF_ACTIVE_OPEN */
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#define UIP_ACTIVE_OPEN (UIP_CONF_ACTIVE_OPEN)
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#endif /* UIP_CONF_ACTIVE_OPEN */
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/**
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* The maximum number of simultaneously open TCP connections.
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*
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* Since the TCP connections are statically allocated, turning this
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* configuration knob down results in less RAM used. Each TCP
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* connection requires approximately 30 bytes of memory.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_MAX_CONNECTIONS
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#define UIP_CONNS 10
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#else /* UIP_CONF_MAX_CONNECTIONS */
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#define UIP_CONNS (UIP_CONF_MAX_CONNECTIONS)
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#endif /* UIP_CONF_MAX_CONNECTIONS */
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/**
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* The maximum number of simultaneously listening TCP ports.
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*
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* Each listening TCP port requires 2 bytes of memory.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_MAX_LISTENPORTS
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#define UIP_LISTENPORTS 20
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#else /* UIP_CONF_MAX_LISTENPORTS */
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#define UIP_LISTENPORTS (UIP_CONF_MAX_LISTENPORTS)
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#endif /* UIP_CONF_MAX_LISTENPORTS */
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/**
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* Determines if support for TCP urgent data notification should be
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* compiled in.
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*
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* Urgent data (out-of-band data) is a rarely used TCP feature that
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* very seldom would be required.
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*
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* \hideinitializer
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*/
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#define UIP_URGDATA 0
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/**
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* The initial retransmission timeout counted in timer pulses.
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*
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* This should not be changed.
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*/
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#define UIP_RTO 3
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/**
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* The maximum number of times a segment should be retransmitted
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* before the connection should be aborted.
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*
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* This should not be changed.
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*/
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#define UIP_MAXRTX 8
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/**
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* The maximum number of times a SYN segment should be retransmitted
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* before a connection request should be deemed to have been
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* unsuccessful.
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*
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* This should not need to be changed.
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*/
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#define UIP_MAXSYNRTX 5
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/**
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* The TCP maximum segment size.
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*
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* This is should not be to set to more than
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* UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN.
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*/
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#ifdef UIP_CONF_TCP_MSS
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#define UIP_TCP_MSS (UIP_CONF_TCP_MSS)
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#else
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#define UIP_TCP_MSS (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
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#endif
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/**
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* The size of the advertised receiver's window.
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*
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* Should be set low (i.e., to the size of the uip_buf buffer) if the
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* application is slow to process incoming data, or high (32768 bytes)
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* if the application processes data quickly.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_RECEIVE_WINDOW
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#define UIP_RECEIVE_WINDOW (UIP_TCP_MSS)
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#else
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#define UIP_RECEIVE_WINDOW (UIP_CONF_RECEIVE_WINDOW)
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#endif
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/**
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* How long a connection should stay in the TIME_WAIT state.
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*
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* This can be reduced for faster entry into power saving modes.
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*/
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#ifndef UIP_CONF_WAIT_TIMEOUT
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#define UIP_TIME_WAIT_TIMEOUT 120
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#else
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#define UIP_TIME_WAIT_TIMEOUT UIP_CONF_WAIT_TIMEOUT
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#endif
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptarp ARP configuration options
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* @{
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*/
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/**
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* The size of the ARP table.
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*
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* This option should be set to a larger value if this uIP node will
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* have many connections from the local network.
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*
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* \hideinitializer
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*/
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#ifdef UIP_CONF_ARPTAB_SIZE
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#define UIP_ARPTAB_SIZE (UIP_CONF_ARPTAB_SIZE)
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#else
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#define UIP_ARPTAB_SIZE 8
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#endif
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/**
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* The maximum age of ARP table entries measured in 10ths of seconds.
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*
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* An UIP_ARP_MAXAGE of 120 corresponds to 20 minutes (BSD
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* default).
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*/
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#define UIP_ARP_MAXAGE 120
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptmac layer 2 options (for ipv6)
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* @{
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*/
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#define UIP_DEFAULT_PREFIX_LEN 64
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptsics 6lowpan options (for ipv6)
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* @{
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*/
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/**
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* Timeout for packet reassembly at the 6lowpan layer
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* (should be < 60s)
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*/
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#ifdef SICSLOWPAN_CONF_MAXAGE
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#define SICSLOWPAN_REASS_MAXAGE (SICSLOWPAN_CONF_MAXAGE)
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#else
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#define SICSLOWPAN_REASS_MAXAGE 20
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#endif
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/**
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* Do we compress the IP header or not (default: no)
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*/
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#ifndef SICSLOWPAN_CONF_COMPRESSION
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#define SICSLOWPAN_CONF_COMPRESSION 0
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#endif
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/**
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* If we use IPHC compression, how many address contexts do we support
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*/
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#ifndef SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS
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#define SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS 1
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#endif
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/**
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* Do we support 6lowpan fragmentation
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*/
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#ifndef SICSLOWPAN_CONF_FRAG
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#define SICSLOWPAN_CONF_FRAG 0
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#endif
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/** @} */
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/*------------------------------------------------------------------------------*/
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/**
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* \defgroup uipoptgeneral General configuration options
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* @{
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*/
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/**
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* The size of the uIP packet buffer.
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*
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* The uIP packet buffer should not be smaller than 60 bytes, and does
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* not need to be larger than 1514 bytes. Lower size results in lower
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* TCP throughput, larger size results in higher TCP throughput.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_BUFFER_SIZE
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#define UIP_BUFSIZE (UIP_LINK_MTU + UIP_LLH_LEN)
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#else /* UIP_CONF_BUFFER_SIZE */
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#define UIP_BUFSIZE (UIP_CONF_BUFFER_SIZE)
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#endif /* UIP_CONF_BUFFER_SIZE */
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/**
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* Determines if statistics support should be compiled in.
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*
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* The statistics is useful for debugging and to show the user.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_STATISTICS
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#define UIP_STATISTICS 0
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#else /* UIP_CONF_STATISTICS */
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#define UIP_STATISTICS (UIP_CONF_STATISTICS)
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#endif /* UIP_CONF_STATISTICS */
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/**
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* Determines if logging of certain events should be compiled in.
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*
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* This is useful mostly for debugging. The function uip_log()
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* must be implemented to suit the architecture of the project, if
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* logging is turned on.
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*
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* \hideinitializer
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*/
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#ifndef UIP_CONF_LOGGING
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#define UIP_LOGGING 0
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#else /* UIP_CONF_LOGGING */
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#define UIP_LOGGING (UIP_CONF_LOGGING)
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#endif /* UIP_CONF_LOGGING */
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/**
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* Broadcast support.
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*
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* This flag configures IP broadcast support. This is useful only
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* together with UDP.
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|
*
|
|
* \hideinitializer
|
|
*
|
|
*/
|
|
#ifndef UIP_CONF_BROADCAST
|
|
#define UIP_BROADCAST 0
|
|
#else /* UIP_CONF_BROADCAST */
|
|
#define UIP_BROADCAST (UIP_CONF_BROADCAST)
|
|
#endif /* UIP_CONF_BROADCAST */
|
|
|
|
/**
|
|
* Print out a uIP log message.
|
|
*
|
|
* This function must be implemented by the module that uses uIP, and
|
|
* is called by uIP whenever a log message is generated.
|
|
*/
|
|
void uip_log(char *msg);
|
|
|
|
/**
|
|
* The link level header length.
|
|
*
|
|
* This is the offset into the uip_buf where the IP header can be
|
|
* found. For Ethernet, this should be set to 14. For SLIP, this
|
|
* should be set to 0.
|
|
*
|
|
* \note we probably won't use this constant for other link layers than
|
|
* ethernet as they have variable header length (this is due to variable
|
|
* number and type of address fields and to optional security features)
|
|
* E.g.: 802.15.4 -> 2 + (1/2*4/8) + 0/5/6/10/14
|
|
* 802.11 -> 4 + (6*3/4) + 2
|
|
* \hideinitializer
|
|
*/
|
|
#ifdef UIP_CONF_LLH_LEN
|
|
#define UIP_LLH_LEN (UIP_CONF_LLH_LEN)
|
|
#else /* UIP_LLH_LEN */
|
|
#define UIP_LLH_LEN 14
|
|
#endif /* UIP_CONF_LLH_LEN */
|
|
|
|
/** @} */
|
|
/*------------------------------------------------------------------------------*/
|
|
/**
|
|
* \defgroup uipoptcpu CPU architecture configuration
|
|
* @{
|
|
*
|
|
* The CPU architecture configuration is where the endianess of the
|
|
* CPU on which uIP is to be run is specified. Most CPUs today are
|
|
* little endian, and the most notable exception are the Motorolas
|
|
* which are big endian. The BYTE_ORDER macro should be changed to
|
|
* reflect the CPU architecture on which uIP is to be run.
|
|
*/
|
|
|
|
/**
|
|
* The byte order of the CPU architecture on which uIP is to be run.
|
|
*
|
|
* This option can be either UIP_BIG_ENDIAN (Motorola byte order) or
|
|
* UIP_LITTLE_ENDIAN (Intel byte order).
|
|
*
|
|
* \hideinitializer
|
|
*/
|
|
#ifdef UIP_CONF_BYTE_ORDER
|
|
#define UIP_BYTE_ORDER (UIP_CONF_BYTE_ORDER)
|
|
#else /* UIP_CONF_BYTE_ORDER */
|
|
#define UIP_BYTE_ORDER (UIP_LITTLE_ENDIAN)
|
|
#endif /* UIP_CONF_BYTE_ORDER */
|
|
|
|
/** @} */
|
|
/*------------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* \defgroup uipoptapp Application specific configurations
|
|
* @{
|
|
*
|
|
* An uIP application is implemented using a single application
|
|
* function that is called by uIP whenever a TCP/IP event occurs. The
|
|
* name of this function must be registered with uIP at compile time
|
|
* using the UIP_APPCALL definition.
|
|
*
|
|
* uIP applications can store the application state within the
|
|
* uip_conn structure by specifying the type of the application
|
|
* structure by typedef:ing the type uip_tcp_appstate_t and uip_udp_appstate_t.
|
|
*
|
|
* The file containing the definitions must be included in the
|
|
* uipopt.h file.
|
|
*
|
|
* The following example illustrates how this can look.
|
|
\code
|
|
|
|
void httpd_appcall(void);
|
|
#define UIP_APPCALL httpd_appcall
|
|
|
|
struct httpd_state {
|
|
uint8_t state;
|
|
uint16_t count;
|
|
char *dataptr;
|
|
char *script;
|
|
};
|
|
typedef struct httpd_state uip_tcp_appstate_t
|
|
\endcode
|
|
*/
|
|
|
|
/**
|
|
* \var #define UIP_APPCALL
|
|
*
|
|
* The name of the application function that uIP should call in
|
|
* response to TCP/IP events.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \var typedef uip_tcp_appstate_t
|
|
*
|
|
* The type of the application state that is to be stored in the
|
|
* uip_conn structure. This usually is typedef:ed to a struct holding
|
|
* application state information.
|
|
*/
|
|
|
|
/**
|
|
* \var typedef uip_udp_appstate_t
|
|
*
|
|
* The type of the application state that is to be stored in the
|
|
* uip_conn structure. This usually is typedef:ed to a struct holding
|
|
* application state information.
|
|
*/
|
|
/** @} */
|
|
|
|
#endif /* UIPOPT_H_ */
|
|
/** @} */
|
|
/** @} */
|