| ## Copyright (c) 2001-2003, Adam Dunkels. |
| ## Copyright 2013 Google Inc. |
| ## 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. |
| |
| menu "Static configuration options" |
| |
| config UIP_IPADDR0 |
| int "Default IP octet 0" |
| default 0 |
| |
| config UIP_IPADDR1 |
| int "Default IP octet 1" |
| default 0 |
| |
| config UIP_IPADDR2 |
| int "Default IP octet 2" |
| default 0 |
| |
| config UIP_IPADDR3 |
| int "Default IP octet 3" |
| default 0 |
| |
| config UIP_DRIPADDR0 |
| int "Default default router IP octet 0" |
| default 0 |
| |
| config UIP_DRIPADDR1 |
| int "Default default router IP octet 1" |
| default 0 |
| |
| config UIP_DRIPADDR2 |
| int "Default default router IP octet 2" |
| default 0 |
| |
| config UIP_DRIPADDR3 |
| int "Default default router IP octet 3" |
| default 0 |
| |
| config UIP_NETMASK0 |
| int "Default netmask octet 0" |
| default 0 |
| |
| config UIP_NETMASK1 |
| int "Default netmask octet 1" |
| default 0 |
| |
| config UIP_NETMASK2 |
| int "Default netmask octet 2" |
| default 0 |
| |
| config UIP_NETMASK3 |
| int "Default netmask octet 3" |
| default 0 |
| |
| config UIP_PINGADDRCONF |
| bool "Ping IP address assignment" |
| default n |
| help |
| uIP uses a "ping" packet 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. |
| |
| This works only if fixed IP configuration is disabled. |
| |
| config UIP_ETHADDR0 |
| hex "Default MAC address octet 0" |
| default 0 |
| |
| config UIP_ETHADDR1 |
| hex "Default MAC address octet 1" |
| default 0 |
| |
| config UIP_ETHADDR2 |
| hex "Default MAC address octet 2" |
| default 0 |
| |
| config UIP_ETHADDR3 |
| hex "Default MAC address octet 3" |
| default 0 |
| |
| config UIP_ETHADDR4 |
| hex "Default MAC address octet 4" |
| default 0 |
| |
| config UIP_ETHADDR5 |
| hex "Default MAC address octet 5" |
| default 0 |
| |
| endmenu |
| |
| menu "IP configuration options" |
| |
| config UIP_TTL |
| int "IP TTL (time to live)" |
| default 64 |
| help |
| The IP TTL (time to live) of IP packets sent by uIP. |
| |
| This should normally not be changed. |
| |
| config UIP_REASSEMBLY |
| bool "Support for IP packet reassembly" |
| default n |
| help |
| 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). |
| |
| IP packet reassembly is not heavily tested. |
| |
| config UIP_REASS_MAXAGE |
| int "IP fragment reassembly max age (seconds)" |
| depends on UIP_REASSEMBLY |
| default 60 |
| help |
| The maximum time an IP fragment should wait in the reassembly |
| buffer before it is dropped. |
| |
| config UIP_LINK_MTU |
| int "Maximum transmission unit at the IP layer" |
| default 1280 |
| |
| endmenu |
| |
| menu "UDP configuration options" |
| |
| config UIP_UDP |
| bool "UDP support" |
| default y |
| |
| config UIP_UDP_CHECKSUMS |
| bool "UDP checksums" |
| depends on UIP_UDP |
| default y |
| help |
| Toggles if UDP checksums should be used or not. |
| |
| Support for UDP checksums is currently not included in uIP, |
| so this option has no function. |
| |
| config UIP_UDP_CONNS |
| int "Maximum number of concurrent UDP connections" |
| depends on UIP_UDP |
| default 10 |
| |
| endmenu |
| |
| menu "TCP configuration options" |
| |
| config UIP_TCP |
| bool "TCP support" |
| default y |
| |
| config UIP_ACTIVE_OPEN |
| bool "Support for opening connections" |
| depends on UIP_TCP |
| default y |
| help |
| 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. |
| |
| config UIP_CONNS |
| int "Maximum number of concurrent TCP connections" |
| depends on UIP_TCP |
| default 10 |
| help |
| 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. |
| |
| config UIP_LISTENPORTS |
| int "Maximum number of simultaneously listening TCP ports" |
| depends on UIP_TCP |
| default 20 |
| help |
| The maximum number of simultaneously listening TCP ports. |
| |
| Each listening TCP port requires 2 bytes of memory. |
| |
| config UIP_RTO |
| int "Retransmission time out (timer pulses)" |
| depends on UIP_TCP |
| default 3 |
| help |
| The initial retransmission timeout counted in timer pulses. |
| |
| This should not be changed. |
| |
| config UIP_MAXRTX |
| int "Max segment retransmissions" |
| depends on UIP_TCP |
| default 8 |
| help |
| The maximum number of times a segment should be retransmitted |
| before the connection should be aborted. |
| |
| This should not be changed. |
| |
| config UIP_MAXSYNRTX |
| int "Max SYN retransmissions" |
| depends on UIP_TCP |
| default 5 |
| help |
| 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. |
| |
| config UIP_MAX_TCP_MSS |
| bool "Use the largest TCP maximum segment size" |
| depends on UIP_TCP |
| default y |
| help |
| The default is UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN |
| |
| config UIP_TCP_MSS |
| int "TCP maximum segment size" |
| depends on !UIP_MAX_TCP_MSS |
| help |
| The TCP maximum segment size. |
| |
| This is should not be to set to more than |
| UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN. |
| |
| config UIP_DEFAULT_RECEIVE_WINDOW |
| bool "Use the default advertised receive window size" |
| depends on UIP_TCP |
| default y |
| help |
| The default is UIP_TCP_MSS |
| |
| config UIP_RECEIVE_WINDOW |
| int "Advertised receive window size" |
| depends on !UIP_DEFAULT_RECEIVE_WINDOW |
| help |
| 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. |
| |
| config UIP_TIME_WAIT_TIMEOUT |
| int "Time to be in the TIME_WAIT state" |
| depends on UIP_TCP |
| default 120 |
| help |
| How long a connection should stay in the TIME_WAIT state. |
| |
| This can be reduced for faster entry into power saving modes. |
| |
| endmenu |
| |
| menu "ARP configuration options" |
| |
| config UIP_ARPTAB_SIZE |
| int "Size of the ARP table" |
| default 8 |
| help |
| 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. |
| |
| config UIP_ARP_MAXAGE |
| int "Maximum age of ARP table entries in 10s of seconds" |
| default 120 |
| help |
| The maximum age of ARP table entries measured in 10s of seconds. |
| |
| An UIP_ARP_MAXAGE of 120 corresponds to 20 minutes (BSD default). |
| |
| endmenu |
| |
| menu "General configuration options" |
| |
| config UIP_DEFAULT_BUFSIZE |
| bool "Use the default packet buffer size" |
| default y |
| help |
| The default is UIP_LINK_MTU + UIP_LLH_LEN |
| |
| config UIP_BUFSIZE |
| int "Size of the packet buffer" |
| depends on !UIP_DEFAULT_BUFSIZE |
| help |
| 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. |
| |
| config UIP_STATISTICS |
| bool "Statistics support" |
| default n |
| help |
| Determines if statistics support should be compiled in. |
| |
| The statistics is useful for debugging and to show the user. |
| |
| config UIP_LOGGING |
| bool "Log certain events" |
| default n |
| help |
| 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. |
| |
| config UIP_BROADCAST |
| bool "Broadcast support" |
| default n |
| help |
| Determines if uIP will pass received broadcast/multicast IPv4 UDP |
| packets to the application (all multicast addresses are treated as |
| broadcast in that case, there is no IGMP support). uIP can always |
| send outgoing broadcast packets regardless of this option. |
| |
| config UIP_LLH_LEN |
| int "Link level header length" |
| default 14 |
| help |
| 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. |
| |
| 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 |
| |
| endmenu |
