/** * \addtogroup uip * @{ */ /** * \defgroup uipopt Configuration options for uIP * @{ * * uIP is configured using the per-project configuration file * "uipopt.h". This file contains all compile-time options for uIP and * should be tweaked to match each specific project. The uIP * distribution contains a documented example "uipopt.h" that can be * copied and modified for each project. * * \note Contiki does not use the uipopt.h file to configure uIP, but * uses a per-port uip-conf.h file that should be edited instead. */ /** * \file * Configuration options for uIP. * \author Adam Dunkels * * This file is used for tweaking various configuration options for * uIP. You should make a copy of this file into one of your project's * directories instead of editing this example "uipopt.h" file that * comes with the uIP distribution. */ /* * Copyright (c) 2001-2003, Adam Dunkels. * 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 uIP TCP/IP stack. * * */ #ifndef __UIPOPT_H__ #define __UIPOPT_H__ #ifndef UIP_LITTLE_ENDIAN #define UIP_LITTLE_ENDIAN 3412 #endif /* UIP_LITTLE_ENDIAN */ #ifndef UIP_BIG_ENDIAN #define UIP_BIG_ENDIAN 1234 #endif /* UIP_BIG_ENDIAN */ #include "contiki-conf.h" /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptstaticconf Static configuration options * @{ * * These configuration options can be used for setting the IP address * settings statically, but only if UIP_FIXEDADDR is set to 1. The * configuration options for a specific node includes IP address, * netmask and default router as well as the Ethernet address. The * netmask, default router and Ethernet address are applicable only * if uIP should be run over Ethernet. * * This options are meaningful only for the IPv4 code. * * All of these should be changed to suit your project. */ /** * Determines if uIP should use a fixed IP address or not. * * If uIP should use a fixed IP address, the settings are set in the * uipopt.h file. If not, the macros uip_sethostaddr(), * uip_setdraddr() and uip_setnetmask() should be used instead. * * \hideinitializer */ #define UIP_FIXEDADDR 0 /** * Ping IP address assignment. * * uIP uses a "ping" packets for setting its own IP address if this * option is set. If so, uIP will start with an empty IP address and * the destination IP address of the first incoming "ping" (ICMP echo) * packet will be used for setting the hosts IP address. * * \note This works only if UIP_FIXEDADDR is 0. * * \hideinitializer */ #ifdef UIP_CONF_PINGADDRCONF #define UIP_PINGADDRCONF (UIP_CONF_PINGADDRCONF) #else /* UIP_CONF_PINGADDRCONF */ #define UIP_PINGADDRCONF 0 #endif /* UIP_CONF_PINGADDRCONF */ /** * Specifies if the uIP ARP module should be compiled with a fixed * Ethernet MAC address or not. * * If this configuration option is 0, the macro uip_setethaddr() can * be used to specify the Ethernet address at run-time. * * \hideinitializer */ #define UIP_FIXEDETHADDR 0 /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptip IP configuration options * @{ * */ /** * The IP TTL (time to live) of IP packets sent by uIP. * * This should normally not be changed. */ #ifdef UIP_CONF_TTL #define UIP_TTL UIP_CONF_TTL #else /* UIP_CONF_TTL */ #define UIP_TTL 64 #endif /* UIP_CONF_TTL */ /** * The maximum time an IP fragment should wait in the reassembly * buffer before it is dropped. * */ #define UIP_REASS_MAXAGE 60 /*60s*/ /** * Turn on support for IP packet reassembly. * * uIP supports reassembly of fragmented IP packets. This features * requires an additional amount of RAM to hold the reassembly buffer * and the reassembly code size is approximately 700 bytes. The * reassembly buffer is of the same size as the uip_buf buffer * (configured by UIP_BUFSIZE). * * \note IP packet reassembly is not heavily tested. * * \hideinitializer */ #ifdef UIP_CONF_REASSEMBLY #define UIP_REASSEMBLY (UIP_CONF_REASSEMBLY) #else /* UIP_CONF_REASSEMBLY */ #define UIP_REASSEMBLY 0 #endif /* UIP_CONF_REASSEMBLY */ /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptipv6 IPv6 configuration options * @{ * */ /** The maximum transmission unit at the IP Layer*/ #define UIP_LINK_MTU 1280 #ifndef UIP_CONF_IPV6 /** Do we use IPv6 or not (default: no) */ #define UIP_CONF_IPV6 0 #endif #ifndef UIP_CONF_IPV6_QUEUE_PKT /** Do we do per %neighbor queuing during address resolution (default: no) */ #define UIP_CONF_IPV6_QUEUE_PKT 0 #endif #ifndef UIP_CONF_IPV6_CHECKS /** Do we do IPv6 consistency checks (highly recommended, default: yes) */ #define UIP_CONF_IPV6_CHECKS 1 #endif #ifndef UIP_CONF_IPV6_REASSEMBLY /** Do we do IPv6 fragmentation (default: no) */ #define UIP_CONF_IPV6_REASSEMBLY 0 #endif #ifndef UIP_CONF_NETIF_MAX_ADDRESSES /** Default number of IPv6 addresses associated to the node's interface */ #define UIP_CONF_NETIF_MAX_ADDRESSES 3 #endif #ifndef UIP_CONF_DS6_PREFIX_NBU /** Default number of IPv6 prefixes associated to the node's interface */ #define UIP_CONF_DS6_PREFIX_NBU 2 #endif #ifndef UIP_CONF_DS6_DEFRT_NBU /** Minimum number of default routers */ #define UIP_CONF_DS6_DEFRT_NBU 2 #endif /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptudp UDP configuration options * @{ * * \note The UDP support in uIP is still not entirely complete; there * is no support for sending or receiving broadcast or multicast * packets, but it works well enough to support a number of vital * applications such as DNS queries, though */ /** * Toggles whether UDP support should be compiled in or not. * * \hideinitializer */ #ifdef UIP_CONF_UDP #define UIP_UDP UIP_CONF_UDP #else /* UIP_CONF_UDP */ #define UIP_UDP 1 #endif /* UIP_CONF_UDP */ /** * Toggles if UDP checksums should be used or not. * * \note Support for UDP checksums is currently not included in uIP, * so this option has no function. * * \hideinitializer */ #ifdef UIP_CONF_UDP_CHECKSUMS #define UIP_UDP_CHECKSUMS (UIP_CONF_UDP_CHECKSUMS) #else #define UIP_UDP_CHECKSUMS (UIP_CONF_IPV6) #endif /** * The maximum amount of concurrent UDP connections. * * \hideinitializer */ #ifdef UIP_CONF_UDP_CONNS #define UIP_UDP_CONNS (UIP_CONF_UDP_CONNS) #else /* UIP_CONF_UDP_CONNS */ #define UIP_UDP_CONNS 10 #endif /* UIP_CONF_UDP_CONNS */ /** * The name of the function that should be called when UDP datagrams arrive. * * \hideinitializer */ /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipopttcp TCP configuration options * @{ */ /** * Toggles whether TCP support should be compiled in or not. * * \hideinitializer */ #ifdef UIP_CONF_TCP #define UIP_TCP (UIP_CONF_TCP) #else /* UIP_CONF_TCP */ #define UIP_TCP 1 #endif /* UIP_CONF_TCP */ /** * Determines if support for opening connections from uIP should be * compiled in. * * If the applications that are running on top of uIP for this project * do not need to open outgoing TCP connections, this configuration * option can be turned off to reduce the code size of uIP. * * \hideinitializer */ #ifndef UIP_CONF_ACTIVE_OPEN #define UIP_ACTIVE_OPEN 1 #else /* UIP_CONF_ACTIVE_OPEN */ #define UIP_ACTIVE_OPEN (UIP_CONF_ACTIVE_OPEN) #endif /* UIP_CONF_ACTIVE_OPEN */ /** * The maximum number of simultaneously open TCP connections. * * Since the TCP connections are statically allocated, turning this * configuration knob down results in less RAM used. Each TCP * connection requires approximately 30 bytes of memory. * * \hideinitializer */ #ifndef UIP_CONF_MAX_CONNECTIONS #define UIP_CONNS 10 #else /* UIP_CONF_MAX_CONNECTIONS */ #define UIP_CONNS (UIP_CONF_MAX_CONNECTIONS) #endif /* UIP_CONF_MAX_CONNECTIONS */ /** * The maximum number of simultaneously listening TCP ports. * * Each listening TCP port requires 2 bytes of memory. * * \hideinitializer */ #ifndef UIP_CONF_MAX_LISTENPORTS #define UIP_LISTENPORTS 20 #else /* UIP_CONF_MAX_LISTENPORTS */ #define UIP_LISTENPORTS (UIP_CONF_MAX_LISTENPORTS) #endif /* UIP_CONF_MAX_LISTENPORTS */ /** * Determines if support for TCP urgent data notification should be * compiled in. * * Urgent data (out-of-band data) is a rarely used TCP feature that * very seldom would be required. * * \hideinitializer */ #define UIP_URGDATA 0 /** * The initial retransmission timeout counted in timer pulses. * * This should not be changed. */ #define UIP_RTO 3 /** * The maximum number of times a segment should be retransmitted * before the connection should be aborted. * * This should not be changed. */ #define UIP_MAXRTX 8 /** * The maximum number of times a SYN segment should be retransmitted * before a connection request should be deemed to have been * unsuccessful. * * This should not need to be changed. */ #define UIP_MAXSYNRTX 5 /** * The TCP maximum segment size. * * This is should not be to set to more than * UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN. */ #ifdef UIP_CONF_TCP_MSS #if UIP_CONF_TCP_MSS < (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN) #error UIP_CONF_TCP_MSS is too large for the current UIP_BUFSIZE #endif /* UIP_CONF_TCP_MSS < (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN) */ #define UIP_TCP_MSS (UIP_CONF_TCP_MSS) #else #define UIP_TCP_MSS (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN) #endif /** * The size of the advertised receiver's window. * * Should be set low (i.e., to the size of the uip_buf buffer) if the * application is slow to process incoming data, or high (32768 bytes) * if the application processes data quickly. * * \hideinitializer */ #ifndef UIP_CONF_RECEIVE_WINDOW #define UIP_RECEIVE_WINDOW (UIP_TCP_MSS) #else #define UIP_RECEIVE_WINDOW (UIP_CONF_RECEIVE_WINDOW) #endif /** * How long a connection should stay in the TIME_WAIT state. * * This can be reduced for faster entry into power saving modes. */ #ifndef UIP_CONF_WAIT_TIMEOUT #define UIP_TIME_WAIT_TIMEOUT 120 #else #define UIP_TIME_WAIT_TIMEOUT UIP_CONF_WAIT_TIMEOUT #endif /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptarp ARP configuration options * @{ */ /** * The size of the ARP table. * * This option should be set to a larger value if this uIP node will * have many connections from the local network. * * \hideinitializer */ #ifdef UIP_CONF_ARPTAB_SIZE #define UIP_ARPTAB_SIZE (UIP_CONF_ARPTAB_SIZE) #else #define UIP_ARPTAB_SIZE 8 #endif /** * The maximum age of ARP table entries measured in 10ths of seconds. * * An UIP_ARP_MAXAGE of 120 corresponds to 20 minutes (BSD * default). */ #define UIP_ARP_MAXAGE 120 /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptmac layer 2 options (for ipv6) * @{ */ #define UIP_DEFAULT_PREFIX_LEN 64 /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptsics 6lowpan options (for ipv6) * @{ */ /** * Timeout for packet reassembly at the 6lowpan layer * (should be < 60s) */ #ifdef SICSLOWPAN_CONF_MAXAGE #define SICSLOWPAN_REASS_MAXAGE (SICSLOWPAN_CONF_MAXAGE) #else #define SICSLOWPAN_REASS_MAXAGE 20 #endif /** * Do we compress the IP header or not (default: no) */ #ifndef SICSLOWPAN_CONF_COMPRESSION #define SICSLOWPAN_CONF_COMPRESSION 0 #endif /** * If we use IPHC compression, how many address contexts do we support */ #ifndef SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS #define SICSLOWPAN_CONF_MAX_ADDR_CONTEXTS 1 #endif /** * Do we support 6lowpan fragmentation */ #ifndef SICSLOWPAN_CONF_FRAG #define SICSLOWPAN_CONF_FRAG 0 #endif /** @} */ /*------------------------------------------------------------------------------*/ /** * \defgroup uipoptgeneral General configuration options * @{ */ /** * The size of the uIP packet buffer. * * The uIP packet buffer should not be smaller than 60 bytes, and does * not need to be larger than 1514 bytes. Lower size results in lower * TCP throughput, larger size results in higher TCP throughput. * * \hideinitializer */ #ifndef UIP_CONF_BUFFER_SIZE #define UIP_BUFSIZE (UIP_LINK_MTU + UIP_LLH_LEN) #else /* UIP_CONF_BUFFER_SIZE */ #define UIP_BUFSIZE (UIP_CONF_BUFFER_SIZE) #endif /* UIP_CONF_BUFFER_SIZE */ /** * Determines if statistics support should be compiled in. * * The statistics is useful for debugging and to show the user. * * \hideinitializer */ #ifndef UIP_CONF_STATISTICS #define UIP_STATISTICS 0 #else /* UIP_CONF_STATISTICS */ #define UIP_STATISTICS (UIP_CONF_STATISTICS) #endif /* UIP_CONF_STATISTICS */ /** * Determines if logging of certain events should be compiled in. * * This is useful mostly for debugging. The function uip_log() * must be implemented to suit the architecture of the project, if * logging is turned on. * * \hideinitializer */ #ifndef UIP_CONF_LOGGING #define UIP_LOGGING 0 #else /* UIP_CONF_LOGGING */ #define UIP_LOGGING (UIP_CONF_LOGGING) #endif /* UIP_CONF_LOGGING */ /** * Broadcast support. * * This flag configures IP broadcast support. This is useful only * together with UDP. * * \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__ */ /** @} */ /** @} */