Started Webserver RNDIS host project.

diff --git a/LUFA.pnproj b/LUFA.pnproj
index 71abf21..c8a20af 100644 (file)
--- a/LUFA.pnproj
+++ b/LUFA.pnproj
@@ -1 +1 @@
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path="LUFA\Drivers\USB\Class\Common\MassStorage.h"></File><File path="LUFA\Drivers\USB\Class\Common\MIDI.h"></File><File path="LUFA\Drivers\USB\Class\Common\RNDIS.h"></File><File path="LUFA\Drivers\USB\Class\Common\StillImage.h"></File><File path="LUFA\Drivers\USB\Class\Common\Printer.h"></File><File path="LUFA\Drivers\USB\Class\Common\RNDISConstants.h"></File></Folder><File path="LUFA\Drivers\USB\Class\Audio.h"></File><File path="LUFA\Drivers\USB\Class\CDC.h"></File><File path="LUFA\Drivers\USB\Class\HID.h"></File><File path="LUFA\Drivers\USB\Class\MassStorage.h"></File><File path="LUFA\Drivers\USB\Class\MIDI.h"></File><File path="LUFA\Drivers\USB\Class\RNDIS.h"></File><File path="LUFA\Drivers\USB\Class\StillImage.h"></File><File path="LUFA\Drivers\USB\Class\Printer.h"></File></Folder><File path="LUFA\Drivers\USB\USB.h"></File></Folder><Folder name="Misc"><File path="LUFA\Drivers\Misc\TerminalCodes.h"></File></Folder><Folder name="Board"><Folder name="USBKEY"><File 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path="LUFA\Drivers\Board\Dataflash.h"></File><File path="LUFA\Drivers\Board\Joystick.h"></File><File path="LUFA\Drivers\Board\Temperature.c"></File><File path="LUFA\Drivers\Board\LEDs.h"></File><File path="LUFA\Drivers\Board\Buttons.h"></File></Folder><Folder name="Peripheral"><Folder name="AVRU4U6U7"><File path="LUFA\Drivers\Peripheral\AVRU4U6U7\ADC.h"></File></Folder><File path="LUFA\Drivers\Peripheral\ADC.h"></File><File path="LUFA\Drivers\Peripheral\Serial.c"></File><File path="LUFA\Drivers\Peripheral\Serial.h"></File><File path="LUFA\Drivers\Peripheral\SPI.h"></File><File path="LUFA\Drivers\Peripheral\SerialStream.c"></File><File path="LUFA\Drivers\Peripheral\SerialStream.h"></File></Folder></Folder><Folder name="DriverStubs"><File path="LUFA\DriverStubs\Dataflash.h"></File><File path="LUFA\DriverStubs\Joystick.h"></File><File path="LUFA\DriverStubs\LEDs.h"></File><File path="LUFA\DriverStubs\Buttons.h"></File></Folder><Folder name="ManPages"><File path="LUFA\ManPages\AboutLUFA.txt"></File><File path="LUFA\ManPages\BuildingLinkableLibraries.txt"></File><File path="LUFA\ManPages\ChangeLog.txt"></File><File path="LUFA\ManPages\CompileTimeTokens.txt"></File><File path="LUFA\ManPages\DevelopingWithLUFA.txt"></File><File path="LUFA\ManPages\DeviceSupport.txt"></File><File path="LUFA\ManPages\DirectorySummaries.txt"></File><File path="LUFA\ManPages\Donating.txt"></File><File path="LUFA\ManPages\FutureChanges.txt"></File><File path="LUFA\ManPages\GettingStarted.txt"></File><File path="LUFA\ManPages\Groups.txt"></File><File path="LUFA\ManPages\LibraryResources.txt"></File><File path="LUFA\ManPages\LUFAPoweredProjects.txt"></File><File path="LUFA\ManPages\MainPage.txt"></File><File path="LUFA\ManPages\MigrationInformation.txt"></File><File path="LUFA\ManPages\VIDAndPIDValues.txt"></File><File path="LUFA\ManPages\WritingBoardDrivers.txt"></File><File path="LUFA\ManPages\ConfiguringApps.txt"></File><File 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path="Bootloaders\DFU\Doxygen.conf"></File></Folder><Folder name="CDC"><File path="Bootloaders\CDC\BootloaderCDC.c"></File><File path="Bootloaders\CDC\BootloaderCDC.h"></File><File path="Bootloaders\CDC\Descriptors.c"></File><File path="Bootloaders\CDC\Descriptors.h"></File><File path="Bootloaders\CDC\makefile"></File><File path="Bootloaders\CDC\LUFA CDC Bootloader.inf"></File><File path="Bootloaders\CDC\Doxygen.conf"></File><File path="Bootloaders\CDC\BootloaderCDC.txt"></File></Folder><Folder name="TeensyHID"><File path="Bootloaders\TeensyHID\Descriptors.c"></File><File path="Bootloaders\TeensyHID\Descriptors.h"></File><File path="Bootloaders\TeensyHID\makefile"></File><File path="Bootloaders\TeensyHID\TeensyHID.c"></File><File path="Bootloaders\TeensyHID\TeensyHID.h"></File><File path="Bootloaders\TeensyHID\TeensyHID.txt"></File></Folder><Folder name="Incomplete"><Folder name="MIDI"><Folder name="JavaHost"><File path="Bootloaders\Incomplete\MIDI\JavaHost\BIN2BOOT.java"></File><File 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path="Projects\LEDNotifier\LEDMixerApp\LEDMixer.Designer.cs"></File><File path="Projects\LEDNotifier\LEDMixerApp\LEDMixer.resx"></File><File path="Projects\LEDNotifier\LEDMixerApp\Program.cs"></File></Folder><File path="Projects\LEDNotifier\Descriptors.c"></File><File path="Projects\LEDNotifier\Descriptors.h"></File><File path="Projects\LEDNotifier\Doxygen.conf"></File><File path="Projects\LEDNotifier\LEDNotifier.c"></File><File path="Projects\LEDNotifier\LEDNotifier.h"></File><File path="Projects\LEDNotifier\LEDNotifier.txt"></File><File path="Projects\LEDNotifier\LUFA LED Notifier.inf"></File><File path="Projects\LEDNotifier\makefile"></File></Folder><Folder name="MagStripe"><Folder name="Lib"><File path="Projects\Magstripe\Lib\CircularBitBuffer.c"></File><File path="Projects\Magstripe\Lib\CircularBitBuffer.h"></File><File path="Projects\Magstripe\Lib\MagstripeHW.h"></File></Folder><File path="Projects\Magstripe\Descriptors.c"></File><File path="Projects\Magstripe\Descriptors.h"></File><File path="Projects\Magstripe\Magstripe.c"></File><File path="Projects\Magstripe\Magstripe.h"></File><File path="Projects\Magstripe\makefile"></File><File path="Projects\Magstripe\Magstripe.txt"></File><File path="Projects\Magstripe\Doxygen.conf"></File></Folder><Folder name="MissileLauncher"><File path="Projects\MissileLauncher\ConfigDescriptor.c"></File><File path="Projects\MissileLauncher\ConfigDescriptor.h"></File><File path="Projects\MissileLauncher\Doxygen.conf"></File><File path="Projects\MissileLauncher\makefile"></File><File path="Projects\MissileLauncher\MissileLauncher.c"></File><File path="Projects\MissileLauncher\MissileLauncher.h"></File><File path="Projects\MissileLauncher\MissileLauncher.txt"></File></Folder><Folder name="TemperatureDataLogger"><Folder name="Lib"><Folder name="FATFs"><File path="Projects\TemperatureDataLogger\Lib\FATFs\diskio.c"></File><File 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name="Lib"><File path="Projects\USBtoSerial\Lib\RingBuff.c"></File><File path="Projects\USBtoSerial\Lib\RingBuff.h"></File></Folder><File path="Projects\USBtoSerial\Descriptors.c"></File><File path="Projects\USBtoSerial\Descriptors.h"></File><File path="Projects\USBtoSerial\Doxygen.conf"></File><File path="Projects\USBtoSerial\LUFA USBtoSerial.inf"></File><File path="Projects\USBtoSerial\makefile"></File><File path="Projects\USBtoSerial\USBtoSerial.c"></File><File path="Projects\USBtoSerial\USBtoSerial.h"></File><File path="Projects\USBtoSerial\USBtoSerial.txt"></File></Folder><Folder name="XPLAINBridge"><Folder name="Lib"><File path="Projects\XPLAINBridge\Lib\RingBuff.c"></File><File path="Projects\XPLAINBridge\Lib\RingBuff.h"></File><File path="Projects\XPLAINBridge\Lib\SoftUART.c"></File><File path="Projects\XPLAINBridge\Lib\SoftUART.h"></File></Folder><File path="Projects\XPLAINBridge\Descriptors.c"></File><File path="Projects\XPLAINBridge\Descriptors.h"></File><File 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path="Projects\Incomplete\StandaloneProgrammer\Lib\DataflashManager.h"></File><File path="Projects\Incomplete\StandaloneProgrammer\Lib\SCSI.c"></File><File path="Projects\Incomplete\StandaloneProgrammer\Lib\SCSI.h"></File><File path="Projects\Incomplete\StandaloneProgrammer\Lib\ProgrammerConfig.c"></File><File path="Projects\Incomplete\StandaloneProgrammer\Lib\ProgrammerConfig.h"></File></Folder><File path="Projects\Incomplete\StandaloneProgrammer\Descriptors.c"></File><File path="Projects\Incomplete\StandaloneProgrammer\Descriptors.h"></File><File path="Projects\Incomplete\StandaloneProgrammer\makefile"></File><File path="Projects\Incomplete\StandaloneProgrammer\StandaloneProgrammer.c"></File><File path="Projects\Incomplete\StandaloneProgrammer\StandaloneProgrammer.h"></File><File path="Projects\Incomplete\StandaloneProgrammer\DiskDevice.c"></File><File path="Projects\Incomplete\StandaloneProgrammer\DiskDevice.h"></File><File 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path="Projects\Incomplete\Webserver\Lib\uip\uip-neighbor.h"></File><File path="Projects\Incomplete\Webserver\Lib\uip\uipopt.h"></File><File path="Projects\Incomplete\Webserver\Lib\uip\uip-split.c"></File><File path="Projects\Incomplete\Webserver\Lib\uip\uip-split.h"></File></Folder></Folder><File path="Projects\Incomplete\Webserver\makefile"></File><File path="Projects\Incomplete\Webserver\Webserver.c"></File><File path="Projects\Incomplete\Webserver\Webserver.h"></File></Folder></Folder><File path="Projects\makefile"></File></Folder><File path="makefile"></File><File path="README.txt"></File></Project>
\ No newline at end of file

diff --git a/LUFA/ManPages/ChangeLog.txt b/LUFA/ManPages/ChangeLog.txt
index d004322..5107768 100644 (file)
--- a/LUFA/ManPages/ChangeLog.txt
+++ b/LUFA/ManPages/ChangeLog.txt
@@ -34,7 +34,7 @@
   *  - Fixed blocking CDC streams not aborting when the host is disconnected\r
   *  - Fixed XPLAIN board Dataflash driver broken due to incorrect preprocessor commands\r
   *  - Fixed inverted XPLAIN LED driver output (LED turned on when it was supposed to be turned off, and vice-versa)\r
-  *  - Fixed Class Driver struct interface numbers in the KeyboardMouse and VirtualSerialMouse demos\r
+  *  - Fixed Class Driver struct interface numbers in the KeyboardMouse and VirtualSerialMouse demos (thanks to Renaud Cerrato)\r
   *\r
   *  \section Sec_ChangeLog091223 Version 091223\r
   *\r

diff --git a/Projects/Incomplete/Webserver/Lib/uip/clock.h b/Projects/Incomplete/Webserver/Lib/uip/clock.h
new file mode 100644 (file)
index 0000000..f34d78f
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/clock.h
@@ -0,0 +1,88 @@
+/**
+ * \defgroup clock Clock interface
+ *
+ * The clock interface is the interface between the \ref timer "timer library"
+ * and the platform specific clock functionality. The clock
+ * interface must be implemented for each platform that uses the \ref
+ * timer "timer library".
+ *
+ * The clock interface does only one this: it measures time. The clock
+ * interface provides a macro, CLOCK_SECOND, which corresponds to one
+ * second of system time.
+ *
+ * \sa \ref timer "Timer library"
+ *
+ * @{
+ */
+
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: clock.h,v 1.3 2006/06/11 21:46:39 adam Exp $
+ */
+#ifndef __CLOCK_H__
+#define __CLOCK_H__
+
+#include "clock-arch.h"
+
+/**
+ * Initialize the clock library.
+ *
+ * This function initializes the clock library and should be called
+ * from the main() function of the system.
+ *
+ */
+void clock_init(void);
+
+/**
+ * Get the current clock time.
+ *
+ * This function returns the current system clock time.
+ *
+ * \return The current clock time, measured in system ticks.
+ */
+clock_time_t clock_time(void);
+
+/**
+ * A second, measured in system clock time.
+ *
+ * \hideinitializer
+ */
+#ifdef CLOCK_CONF_SECOND
+#define CLOCK_SECOND CLOCK_CONF_SECOND
+#else
+#define CLOCK_SECOND (clock_time_t)32
+#endif
+
+#endif /* __CLOCK_H__ */
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/conf/apps-conf.h b/Projects/Incomplete/Webserver/Lib/uip/conf/apps-conf.h
new file mode 100644 (file)
index 0000000..60a7c9e
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/conf/apps-conf.h
@@ -0,0 +1,15 @@
+#ifndef __APPS_CONF_H__\r
+#define __APPS_CONF_H__\r
+\r
+//Here we include the header file for the application(s) we use in our project.\r
+\r
+//#include "smtp.h"\r
+//#include "hello-world.h"\r
+//#include "simple-httpd.h"\r
+//#include "telnetd.h"\r
+//#include "webserver.h"\r
+//#include "dhcpc.h"\r
+//#include "resolv.h"\r
+//#include "webclient.h"\r
+\r
+#endif /*__APPS_CONF_H__*/\r

diff --git a/Projects/Incomplete/Webserver/Lib/uip/conf/clock-arch.c b/Projects/Incomplete/Webserver/Lib/uip/conf/clock-arch.c
new file mode 100644 (file)
index 0000000..c3e281e
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/conf/clock-arch.c
@@ -0,0 +1,43 @@
+#include "global-conf.h"
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <avr/interrupt.h>
+#include <avr/io.h>
+#include <avr/sfr_defs.h>
+
+#include "clock-arch.h"
+
+//Counted time
+volatile clock_time_t clock_datetime = 0;
+
+//Overflow interrupt
+ISR(TIMER0_OVF_vect)
+{\r
+       clock_datetime += 1;
+}
+
+//Initialise the clock
+void clock_init()\r
+{\r
+       //Activate overflow interrupt for timer0
+       TIMSK0 |= (1<<TOIE0);
+
+       //Use prescaler 1024
+       TCCR0B |= ((1<<CS12)|(1<<CS10));
+
+       //Activate interrupts
+       sei();
+}
+
+//Return time
+clock_time_t clock_time()\r
+{\r
+       clock_time_t time;
+
+       cli();
+               time = clock_datetime;
+       sei();
+
+       return time;
+}

diff --git a/Projects/Incomplete/Webserver/Lib/uip/conf/clock-arch.h b/Projects/Incomplete/Webserver/Lib/uip/conf/clock-arch.h
new file mode 100644 (file)
index 0000000..c759d01
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/conf/clock-arch.h
@@ -0,0 +1,12 @@
+#ifndef __CLOCK_ARCH_H__\r
+#define __CLOCK_ARCH_H__\r
+\r
+#include "global-conf.h"\r
+#include <stdint.h>\r
+\r
+typedef uint16_t clock_time_t;\r
+#define CLOCK_CONF_SECOND (F_CPU / 1024 / 255)  //Freqency divided prescaler and counter register size\r
+void clock_init(void);\r
+clock_time_t clock_time(void);\r
+\r
+#endif /* __CLOCK_ARCH_H__ */\r

diff --git a/Projects/Incomplete/Webserver/Lib/uip/conf/global-conf.h b/Projects/Incomplete/Webserver/Lib/uip/conf/global-conf.h
new file mode 100644 (file)
index 0000000..a9f118d
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/conf/global-conf.h
@@ -0,0 +1,12 @@
+//Project specific configurations\r
+#ifndef __GLOBAL_CONF_H__\r
+#define __GLOBAL_CONF_H__\r
+\r
+//Define frequency\r
+// #define F_CPU 12500000UL\r
+//\r
+\r
+//Include uip.h gives all the uip configurations in uip-conf.h\r
+#include "uip.h"\r
+\r
+#endif /*__GLOBAL_CONF_H__*/\r

diff --git a/Projects/Incomplete/Webserver/Lib/uip/conf/uip-conf.h b/Projects/Incomplete/Webserver/Lib/uip/conf/uip-conf.h
new file mode 100644 (file)
index 0000000..d46fa26
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/conf/uip-conf.h
@@ -0,0 +1,127 @@
+#ifndef __UIP_CONF_H__\r
+#define __UIP_CONF_H__\r
+\r
+#include <inttypes.h>\r
+#include <avr/io.h>\r
+#include <stdio.h>\r
+#include <stdbool.h>\r
+\r
+typedef int uip_tcp_appstate_t;\r
+typedef int uip_udp_appstate_t;\r
+\r
+#define UIP_APPCALL     TCPCallback\r
+#define UIP_UDP_APPCALL TCPCallback\r
+\r
+void UIP_APPCALL(void);\r
+void UIP_UDP_APPCALL(void);\r
+\r
+#define UIP_CONF_LLH_LEN 14\r
+\r
+/**\r
+ * 8 bit datatype\r
+ *\r
+ * This typedef defines the 8-bit type used throughout uIP.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+typedef uint8_t u8_t;\r
+\r
+/**\r
+ * 16 bit datatype\r
+ *\r
+ * This typedef defines the 16-bit type used throughout uIP.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+typedef uint16_t u16_t;\r
+\r
+/**\r
+ * Statistics datatype\r
+ *\r
+ * This typedef defines the dataype used for keeping statistics in\r
+ * uIP.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+typedef unsigned short uip_stats_t;\r
+\r
+#define UIP_CONF_IPV6 0\r
+#define UIP_ARCH_ADD32 0\r
+#define UIP_ARCH_CHKSUM 0\r
+\r
+/**\r
+ * Maximum number of TCP connections.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_MAX_CONNECTIONS 5\r
+\r
+/**\r
+ * Maximum number of listening TCP ports.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_MAX_LISTENPORTS 1\r
+\r
+/**\r
+ * uIP buffer size.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_BUFFER_SIZE     1100\r
+/**\r
+ * CPU byte order.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_BYTE_ORDER      UIP_LITTLE_ENDIAN\r
+\r
+/**\r
+ * Logging on or off\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_LOGGING         0\r
+\r
+/**\r
+ * UDP support on or off\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_UDP             0\r
+\r
+/**\r
+ * UDP checksums on or off\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_UDP_CHECKSUMS   0\r
+\r
+/**\r
+ * uIP statistics on or off\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_STATISTICS      0\r
+\r
+/**\r
+ * Broadcast support.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_BROADCAST             0\r
+\r
+/**\r
+ * The maximum amount of concurrent UDP connections.\r
+ *\r
+ * \hideinitializer\r
+ */\r
+#define UIP_CONF_UDP_CONNS             1\r
+\r
+//Include app configuration\r
+#include "apps-conf.h"\r
+\r
+#endif /* __UIP_CONF_H__ */\r
+\r
+/** @} */\r
+/** @} */\r

diff --git a/Projects/Incomplete/Webserver/Lib/uip/lc-addrlabels.h b/Projects/Incomplete/Webserver/Lib/uip/lc-addrlabels.h
new file mode 100644 (file)
index 0000000..fe1387e
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/lc-addrlabels.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2004-2005, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lc-addrlabels.h,v 1.3 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \addtogroup lc
+ * @{
+ */
+
+/**
+ * \file
+ * Implementation of local continuations based on the "Labels as
+ * values" feature of gcc
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ *
+ * This implementation of local continuations is based on a special
+ * feature of the GCC C compiler called "labels as values". This
+ * feature allows assigning pointers with the address of the code
+ * corresponding to a particular C label.
+ *
+ * For more information, see the GCC documentation:
+ * http://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html
+ *
+ * Thanks to dividuum for finding the nice local scope label
+ * implementation.
+ */
+
+#ifndef __LC_ADDRLABELS_H__
+#define __LC_ADDRLABELS_H__
+
+/** \hideinitializer */
+typedef void * lc_t;
+
+#define LC_INIT(s) s = NULL
+
+
+#define LC_RESUME(s)                            \
+  do {                                          \
+    if(s != NULL) {                             \
+      goto *s;                                  \
+    }                                           \
+  } while(0)
+
+#define LC_SET(s)                               \
+  do { ({ __label__ resume; resume: (s) = &&resume; }); }while(0)
+
+#define LC_END(s)
+
+#endif /* __LC_ADDRLABELS_H__ */
+
+/**  @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/lc-switch.h b/Projects/Incomplete/Webserver/Lib/uip/lc-switch.h
new file mode 100644 (file)
index 0000000..f32885f
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/lc-switch.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2004-2005, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lc-switch.h,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \addtogroup lc
+ * @{
+ */
+
+/**
+ * \file
+ * Implementation of local continuations based on switch() statment
+ * \author Adam Dunkels <adam@sics.se>
+ *
+ * This implementation of local continuations uses the C switch()
+ * statement to resume execution of a function somewhere inside the
+ * function's body. The implementation is based on the fact that
+ * switch() statements are able to jump directly into the bodies of
+ * control structures such as if() or while() statmenets.
+ *
+ * This implementation borrows heavily from Simon Tatham's coroutines
+ * implementation in C:
+ * http://www.chiark.greenend.org.uk/~sgtatham/coroutines.html
+ */
+
+#ifndef __LC_SWITCH_H__
+#define __LC_SWTICH_H__
+
+/* WARNING! lc implementation using switch() does not work if an
+   LC_SET() is done within another switch() statement! */
+
+/** \hideinitializer */
+typedef unsigned short lc_t;
+
+#define LC_INIT(s) s = 0;
+
+#define LC_RESUME(s) switch(s) { case 0:
+
+#define LC_SET(s) s = __LINE__; case __LINE__:
+
+#define LC_END(s) }
+
+#endif /* __LC_SWITCH_H__ */
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/lc.h b/Projects/Incomplete/Webserver/Lib/uip/lc.h
new file mode 100644 (file)
index 0000000..a9e9d46
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/lc.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2004-2005, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: lc.h,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \addtogroup pt
+ * @{
+ */
+
+/**
+ * \defgroup lc Local continuations
+ * @{
+ *
+ * Local continuations form the basis for implementing protothreads. A
+ * local continuation can be <i>set</i> in a specific function to
+ * capture the state of the function. After a local continuation has
+ * been set can be <i>resumed</i> in order to restore the state of the
+ * function at the point where the local continuation was set.
+ *
+ *
+ */
+
+/**
+ * \file lc.h
+ * Local continuations
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifdef DOXYGEN
+/**
+ * Initialize a local continuation.
+ *
+ * This operation initializes the local continuation, thereby
+ * unsetting any previously set continuation state.
+ *
+ * \hideinitializer
+ */
+#define LC_INIT(lc)
+
+/**
+ * Set a local continuation.
+ *
+ * The set operation saves the state of the function at the point
+ * where the operation is executed. As far as the set operation is
+ * concerned, the state of the function does <b>not</b> include the
+ * call-stack or local (automatic) variables, but only the program
+ * counter and such CPU registers that needs to be saved.
+ *
+ * \hideinitializer
+ */
+#define LC_SET(lc)
+
+/**
+ * Resume a local continuation.
+ *
+ * The resume operation resumes a previously set local continuation, thus
+ * restoring the state in which the function was when the local
+ * continuation was set. If the local continuation has not been
+ * previously set, the resume operation does nothing.
+ *
+ * \hideinitializer
+ */
+#define LC_RESUME(lc)
+
+/**
+ * Mark the end of local continuation usage.
+ *
+ * The end operation signifies that local continuations should not be
+ * used any more in the function. This operation is not needed for
+ * most implementations of local continuation, but is required by a
+ * few implementations.
+ *
+ * \hideinitializer
+ */
+#define LC_END(lc)
+
+/**
+ * \var typedef lc_t;
+ *
+ * The local continuation type.
+ *
+ * \hideinitializer
+ */
+#endif /* DOXYGEN */
+
+#ifndef __LC_H__
+#define __LC_H__
+
+#ifdef LC_CONF_INCLUDE
+#include LC_CONF_INCLUDE
+#else
+#include "lc-switch.h"
+#endif /* LC_CONF_INCLUDE */
+
+#endif /* __LC_H__ */
+
+/** @} */
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/psock.c b/Projects/Incomplete/Webserver/Lib/uip/psock.c
new file mode 100644 (file)
index 0000000..f284cb9
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/psock.c
@@ -0,0 +1,338 @@
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: psock.c,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "uipopt.h"
+#include "psock.h"
+#include "uip.h"
+
+#define STATE_NONE 0
+#define STATE_ACKED 1
+#define STATE_READ 2
+#define STATE_BLOCKED_NEWDATA 3
+#define STATE_BLOCKED_CLOSE 4
+#define STATE_BLOCKED_SEND 5
+#define STATE_DATA_SENT 6
+
+/*
+ * Return value of the buffering functions that indicates that a
+ * buffer was not filled by incoming data.
+ *
+ */
+#define BUF_NOT_FULL 0
+#define BUF_NOT_FOUND 0
+
+/*
+ * Return value of the buffering functions that indicates that a
+ * buffer was completely filled by incoming data.
+ *
+ */
+#define BUF_FULL 1
+
+/*
+ * Return value of the buffering functions that indicates that an
+ * end-marker byte was found.
+ *
+ */
+#define BUF_FOUND 2
+
+/*---------------------------------------------------------------------------*/
+static void
+buf_setup(struct psock_buf *buf,
+         u8_t *bufptr, u16_t bufsize)
+{
+  buf->ptr = bufptr;
+  buf->left = bufsize;
+}
+/*---------------------------------------------------------------------------*/
+static u8_t
+buf_bufdata(struct psock_buf *buf, u16_t len,
+           u8_t **dataptr, u16_t *datalen)
+{
+  if(*datalen < buf->left) {
+    memcpy(buf->ptr, *dataptr, *datalen);
+    buf->ptr += *datalen;
+    buf->left -= *datalen;
+    *dataptr += *datalen;
+    *datalen = 0;
+    return BUF_NOT_FULL;
+  } else if(*datalen == buf->left) {
+    memcpy(buf->ptr, *dataptr, *datalen);
+    buf->ptr += *datalen;
+    buf->left = 0;
+    *dataptr += *datalen;
+    *datalen = 0;
+    return BUF_FULL;
+  } else {
+    memcpy(buf->ptr, *dataptr, buf->left);
+    buf->ptr += buf->left;
+    *datalen -= buf->left;
+    *dataptr += buf->left;
+    buf->left = 0;
+    return BUF_FULL;
+  }
+}
+/*---------------------------------------------------------------------------*/
+static u8_t
+buf_bufto(register struct psock_buf *buf, u8_t endmarker,
+         register u8_t **dataptr, register u16_t *datalen)
+{
+  u8_t c;
+  while(buf->left > 0 && *datalen > 0) {
+    c = *buf->ptr = **dataptr;
+    ++*dataptr;
+    ++buf->ptr;
+    --*datalen;
+    --buf->left;
+    
+    if(c == endmarker) {
+      return BUF_FOUND;
+    }
+  }
+
+  if(*datalen == 0) {
+    return BUF_NOT_FOUND;
+  }
+
+  while(*datalen > 0) {
+    c = **dataptr;
+    --*datalen;
+    ++*dataptr;
+    
+    if(c == endmarker) {
+      return BUF_FOUND | BUF_FULL;
+    }
+  }
+  
+  return BUF_FULL;
+}
+/*---------------------------------------------------------------------------*/
+static char
+send_data(register struct psock *s)
+{
+  if(s->state != STATE_DATA_SENT || uip_rexmit()) {
+    if(s->sendlen > uip_mss()) {
+      uip_send(s->sendptr, uip_mss());
+    } else {
+      uip_send(s->sendptr, s->sendlen);
+    }
+    s->state = STATE_DATA_SENT;
+    return 1;
+  }
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+static char
+data_acked(register struct psock *s)
+{
+  if(s->state == STATE_DATA_SENT && uip_acked()) {
+    if(s->sendlen > uip_mss()) {
+      s->sendlen -= uip_mss();
+      s->sendptr += uip_mss();
+    } else {
+      s->sendptr += s->sendlen;
+      s->sendlen = 0;
+    }
+    s->state = STATE_ACKED;
+    return 1;
+  }
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+PT_THREAD(psock_send(register struct psock *s, const char *buf,
+                    unsigned int len))
+{
+  PT_BEGIN(&s->psockpt);
+
+  /* If there is no data to send, we exit immediately. */
+  if(len == 0) {
+    PT_EXIT(&s->psockpt);
+  }
+
+  /* Save the length of and a pointer to the data that is to be
+     sent. */
+  s->sendptr = buf;
+  s->sendlen = len;
+
+  s->state = STATE_NONE;
+
+  /* We loop here until all data is sent. The s->sendlen variable is
+     updated by the data_sent() function. */
+  while(s->sendlen > 0) {
+
+    /*
+     * The condition for this PT_WAIT_UNTIL is a little tricky: the
+     * protothread will wait here until all data has been acknowledged
+     * (data_acked() returns true) and until all data has been sent
+     * (send_data() returns true). The two functions data_acked() and
+     * send_data() must be called in succession to ensure that all
+     * data is sent. Therefore the & operator is used instead of the
+     * && operator, which would cause only the data_acked() function
+     * to be called when it returns false.
+     */
+    PT_WAIT_UNTIL(&s->psockpt, data_acked(s) & send_data(s));
+  }
+
+  s->state = STATE_NONE;
+  
+  PT_END(&s->psockpt);
+}
+/*---------------------------------------------------------------------------*/
+PT_THREAD(psock_generator_send(register struct psock *s,
+                              unsigned short (*generate)(void *), void *arg))
+{
+  PT_BEGIN(&s->psockpt);
+
+  /* Ensure that there is a generator function to call. */
+  if(generate == NULL) {
+    PT_EXIT(&s->psockpt);
+  }
+
+  /* Call the generator function to generate the data in the
+     uip_appdata buffer. */
+  s->sendlen = generate(arg);
+  s->sendptr = uip_appdata;
+
+  s->state = STATE_NONE;  
+  do {
+    /* Call the generator function again if we are called to perform a
+       retransmission. */
+    if(uip_rexmit()) {
+      generate(arg);
+    }
+    /* Wait until all data is sent and acknowledged. */
+    PT_WAIT_UNTIL(&s->psockpt, data_acked(s) & send_data(s));
+  } while(s->sendlen > 0);
+  
+  s->state = STATE_NONE;
+  
+  PT_END(&s->psockpt);
+}
+/*---------------------------------------------------------------------------*/
+u16_t
+psock_datalen(struct psock *psock)
+{
+  return psock->bufsize - psock->buf.left;
+}
+/*---------------------------------------------------------------------------*/
+char
+psock_newdata(struct psock *s)
+{
+  if(s->readlen > 0) {
+    /* There is data in the uip_appdata buffer that has not yet been
+       read with the PSOCK_READ functions. */
+    return 1;
+  } else if(s->state == STATE_READ) {
+    /* All data in uip_appdata buffer already consumed. */
+    s->state = STATE_BLOCKED_NEWDATA;
+    return 0;
+  } else if(uip_newdata()) {
+    /* There is new data that has not been consumed. */
+    return 1;
+  } else {
+    /* There is no new data. */
+    return 0;
+  }
+}
+/*---------------------------------------------------------------------------*/
+PT_THREAD(psock_readto(register struct psock *psock, unsigned char c))
+{
+  PT_BEGIN(&psock->psockpt);
+
+  buf_setup(&psock->buf, psock->bufptr, psock->bufsize);
+  
+  /* XXX: Should add buf_checkmarker() before do{} loop, if
+     incoming data has been handled while waiting for a write. */
+
+  do {
+    if(psock->readlen == 0) {
+      PT_WAIT_UNTIL(&psock->psockpt, psock_newdata(psock));
+      psock->state = STATE_READ;
+      psock->readptr = (u8_t *)uip_appdata;
+      psock->readlen = uip_datalen();
+    }
+  } while((buf_bufto(&psock->buf, c,
+                    &psock->readptr,
+                    &psock->readlen) & BUF_FOUND) == 0);
+  
+  if(psock_datalen(psock) == 0) {
+    psock->state = STATE_NONE;
+    PT_RESTART(&psock->psockpt);
+  }
+  PT_END(&psock->psockpt);
+}
+/*---------------------------------------------------------------------------*/
+PT_THREAD(psock_readbuf(register struct psock *psock))
+{
+  PT_BEGIN(&psock->psockpt);
+
+  buf_setup(&psock->buf, psock->bufptr, psock->bufsize);
+  
+  /* XXX: Should add buf_checkmarker() before do{} loop, if
+     incoming data has been handled while waiting for a write. */
+
+  do {
+    if(psock->readlen == 0) {
+      PT_WAIT_UNTIL(&psock->psockpt, psock_newdata(psock));
+      printf("Waited for newdata\n");
+      psock->state = STATE_READ;
+      psock->readptr = (u8_t *)uip_appdata;
+      psock->readlen = uip_datalen();
+    }
+  } while(buf_bufdata(&psock->buf, psock->bufsize,
+                        &psock->readptr,
+                        &psock->readlen) != BUF_FULL);
+
+  if(psock_datalen(psock) == 0) {
+    psock->state = STATE_NONE;
+    PT_RESTART(&psock->psockpt);
+  }
+  PT_END(&psock->psockpt);
+}
+/*---------------------------------------------------------------------------*/
+void
+psock_init(register struct psock *psock, char *buffer, unsigned int buffersize)
+{
+  psock->state = STATE_NONE;
+  psock->readlen = 0;
+  psock->bufptr = buffer;
+  psock->bufsize = buffersize;
+  buf_setup(&psock->buf, buffer, buffersize);
+  PT_INIT(&psock->pt);
+  PT_INIT(&psock->psockpt);
+}
+/*---------------------------------------------------------------------------*/

diff --git a/Projects/Incomplete/Webserver/Lib/uip/psock.h b/Projects/Incomplete/Webserver/Lib/uip/psock.h
new file mode 100644 (file)
index 0000000..3dffa73
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/psock.h
@@ -0,0 +1,380 @@
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: psock.h,v 1.3 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \defgroup psock Protosockets library
+ * @{
+ *
+ * The protosocket library provides an interface to the uIP stack that is
+ * similar to the traditional BSD socket interface. Unlike programs
+ * written for the ordinary uIP event-driven interface, programs
+ * written with the protosocket library are executed in a sequential
+ * fashion and does not have to be implemented as explicit state
+ * machines.
+ *
+ * Protosockets only work with TCP connections.
+ *
+ * The protosocket library uses \ref pt protothreads to provide
+ * sequential control flow. This makes the protosockets lightweight in
+ * terms of memory, but also means that protosockets inherits the
+ * functional limitations of protothreads. Each protosocket lives only
+ * within a single function. Automatic variables (stack variables) are
+ * not retained across a protosocket library function call.
+ *
+ * \note Because the protosocket library uses protothreads, local
+ * variables will not always be saved across a call to a protosocket
+ * library function. It is therefore advised that local variables are
+ * used with extreme care.
+ *
+ * The protosocket library provides functions for sending data without
+ * having to deal with retransmissions and acknowledgements, as well
+ * as functions for reading data without having to deal with data
+ * being split across more than one TCP segment.
+ *
+ * Because each protosocket runs as a protothread, the protosocket has to be
+ * started with a call to PSOCK_BEGIN() at the start of the function
+ * in which the protosocket is used. Similarly, the protosocket protothread can
+ * be terminated by a call to PSOCK_EXIT().
+ *
+ */
+
+/**
+ * \file
+ * Protosocket library header file
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __PSOCK_H__
+#define __PSOCK_H__
+
+#include "uipopt.h"
+#include "pt.h"
+
+ /*
+ * The structure that holds the state of a buffer.
+ *
+ * This structure holds the state of a uIP buffer. The structure has
+ * no user-visible elements, but is used through the functions
+ * provided by the library.
+ *
+ */
+struct psock_buf {
+  u8_t *ptr;
+  unsigned short left;
+};
+
+/**
+ * The representation of a protosocket.
+ *
+ * The protosocket structrure is an opaque structure with no user-visible
+ * elements.
+ */
+struct psock {
+  struct pt pt, psockpt; /* Protothreads - one that's using the psock
+                           functions, and one that runs inside the
+                           psock functions. */
+  const u8_t *sendptr;   /* Pointer to the next data to be sent. */
+  u8_t *readptr;         /* Pointer to the next data to be read. */
+  
+  char *bufptr;          /* Pointer to the buffer used for buffering
+                           incoming data. */
+  
+  u16_t sendlen;         /* The number of bytes left to be sent. */
+  u16_t readlen;         /* The number of bytes left to be read. */
+
+  struct psock_buf buf;  /* The structure holding the state of the
+                           input buffer. */
+  unsigned int bufsize;  /* The size of the input buffer. */
+  
+  unsigned char state;   /* The state of the protosocket. */
+};
+
+void psock_init(struct psock *psock, char *buffer, unsigned int buffersize);
+/**
+ * Initialize a protosocket.
+ *
+ * This macro initializes a protosocket and must be called before the
+ * protosocket is used. The initialization also specifies the input buffer
+ * for the protosocket.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket to be
+ * initialized
+ *
+ * \param buffer (char *) A pointer to the input buffer for the
+ * protosocket.
+ *
+ * \param buffersize (unsigned int) The size of the input buffer.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_INIT(psock, buffer, buffersize) \
+  psock_init(psock, buffer, buffersize)
+
+/**
+ * Start the protosocket protothread in a function.
+ *
+ * This macro starts the protothread associated with the protosocket and
+ * must come before other protosocket calls in the function it is used.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket to be
+ * started.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_BEGIN(psock) PT_BEGIN(&((psock)->pt))
+
+PT_THREAD(psock_send(struct psock *psock, const char *buf, unsigned int len));
+/**
+ * Send data.
+ *
+ * This macro sends data over a protosocket. The protosocket protothread blocks
+ * until all data has been sent and is known to have been received by
+ * the remote end of the TCP connection.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket over which
+ * data is to be sent.
+ *
+ * \param data (char *) A pointer to the data that is to be sent.
+ *
+ * \param datalen (unsigned int) The length of the data that is to be
+ * sent.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_SEND(psock, data, datalen)               \
+    PT_WAIT_THREAD(&((psock)->pt), psock_send(psock, data, datalen))
+
+/**
+ * \brief      Send a null-terminated string.
+ * \param psock Pointer to the protosocket.
+ * \param str  The string to be sent.
+ *
+ *             This function sends a null-terminated string over the
+ *             protosocket.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_SEND_STR(psock, str)                     \
+    PT_WAIT_THREAD(&((psock)->pt), psock_send(psock, str, strlen(str)))
+
+PT_THREAD(psock_generator_send(struct psock *psock,
+                               unsigned short (*f)(void *), void *arg));
+
+/**
+ * \brief      Generate data with a function and send it
+ * \param psock Pointer to the protosocket.
+ * \param generator Pointer to the generator function
+ * \param arg   Argument to the generator function
+ *
+ *             This function generates data and sends it over the
+ *             protosocket. This can be used to dynamically generate
+ *             data for a transmission, instead of generating the data
+ *             in a buffer beforehand. This function reduces the need for
+ *             buffer memory. The generator function is implemented by
+ *             the application, and a pointer to the function is given
+ *             as an argument with the call to PSOCK_GENERATOR_SEND().
+ *
+ *             The generator function should place the generated data
+ *             directly in the uip_appdata buffer, and return the
+ *             length of the generated data. The generator function is
+ *             called by the protosocket layer when the data first is
+ *             sent, and once for every retransmission that is needed.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_GENERATOR_SEND(psock, generator, arg)     \
+    PT_WAIT_THREAD(&((psock)->pt),                                     \
+                  psock_generator_send(psock, generator, arg))
+
+
+/**
+ * Close a protosocket.
+ *
+ * This macro closes a protosocket and can only be called from within the
+ * protothread in which the protosocket lives.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket that is to
+ * be closed.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_CLOSE(psock) uip_close()
+
+PT_THREAD(psock_readbuf(struct psock *psock));
+/**
+ * Read data until the buffer is full.
+ *
+ * This macro will block waiting for data and read the data into the
+ * input buffer specified with the call to PSOCK_INIT(). Data is read
+ * until the buffer is full..
+ *
+ * \param psock (struct psock *) A pointer to the protosocket from which
+ * data should be read.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_READBUF(psock)                           \
+  PT_WAIT_THREAD(&((psock)->pt), psock_readbuf(psock))
+
+PT_THREAD(psock_readto(struct psock *psock, unsigned char c));
+/**
+ * Read data up to a specified character.
+ *
+ * This macro will block waiting for data and read the data into the
+ * input buffer specified with the call to PSOCK_INIT(). Data is only
+ * read until the specifieed character appears in the data stream.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket from which
+ * data should be read.
+ *
+ * \param c (char) The character at which to stop reading.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_READTO(psock, c)                         \
+  PT_WAIT_THREAD(&((psock)->pt), psock_readto(psock, c))
+
+/**
+ * The length of the data that was previously read.
+ *
+ * This macro returns the length of the data that was previously read
+ * using PSOCK_READTO() or PSOCK_READ().
+ *
+ * \param psock (struct psock *) A pointer to the protosocket holding the data.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_DATALEN(psock) psock_datalen(psock)
+
+u16_t psock_datalen(struct psock *psock);
+
+/**
+ * Exit the protosocket's protothread.
+ *
+ * This macro terminates the protothread of the protosocket and should
+ * almost always be used in conjunction with PSOCK_CLOSE().
+ *
+ * \sa PSOCK_CLOSE_EXIT()
+ *
+ * \param psock (struct psock *) A pointer to the protosocket.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_EXIT(psock) PT_EXIT(&((psock)->pt))
+
+/**
+ * Close a protosocket and exit the protosocket's protothread.
+ *
+ * This macro closes a protosocket and exits the protosocket's protothread.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_CLOSE_EXIT(psock)                \
+  do {                                         \
+    PSOCK_CLOSE(psock);                        \
+    PSOCK_EXIT(psock);                 \
+  } while(0)
+
+/**
+ * Declare the end of a protosocket's protothread.
+ *
+ * This macro is used for declaring that the protosocket's protothread
+ * ends. It must always be used together with a matching PSOCK_BEGIN()
+ * macro.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_END(psock) PT_END(&((psock)->pt))
+
+char psock_newdata(struct psock *s);
+
+/**
+ * Check if new data has arrived on a protosocket.
+ *
+ * This macro is used in conjunction with the PSOCK_WAIT_UNTIL()
+ * macro to check if data has arrived on a protosocket.
+ *
+ * \param psock (struct psock *) A pointer to the protosocket.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_NEWDATA(psock) psock_newdata(psock)
+
+/**
+ * Wait until a condition is true.
+ *
+ * This macro blocks the protothread until the specified condition is
+ * true. The macro PSOCK_NEWDATA() can be used to check if new data
+ * arrives when the protosocket is waiting.
+ *
+ * Typically, this macro is used as follows:
+ *
+ \code
+ PT_THREAD(thread(struct psock *s, struct timer *t))
+ {
+   PSOCK_BEGIN(s);
+
+   PSOCK_WAIT_UNTIL(s, PSOCK_NEWADATA(s) || timer_expired(t));
+   
+   if(PSOCK_NEWDATA(s)) {
+     PSOCK_READTO(s, '\n');
+   } else {
+     handle_timed_out(s);
+   }
+   
+   PSOCK_END(s);
+ }
+ \endcode
+ *
+ * \param psock (struct psock *) A pointer to the protosocket.
+ * \param condition The condition to wait for.
+ *
+ * \hideinitializer
+ */
+#define PSOCK_WAIT_UNTIL(psock, condition)    \
+  PT_WAIT_UNTIL(&((psock)->pt), (condition));
+
+#define PSOCK_WAIT_THREAD(psock, condition)   \
+  PT_WAIT_THREAD(&((psock)->pt), (condition))
+
+#endif /* __PSOCK_H__ */
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/pt.h b/Projects/Incomplete/Webserver/Lib/uip/pt.h
new file mode 100644 (file)
index 0000000..9f1f64d
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/pt.h
@@ -0,0 +1,323 @@
+/*
+ * Copyright (c) 2004-2005, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: pt.h,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \addtogroup pt
+ * @{
+ */
+
+/**
+ * \file
+ * Protothreads implementation.
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __PT_H__
+#define __PT_H__
+
+#include "lc.h"
+
+struct pt {
+  lc_t lc;
+};
+
+#define PT_WAITING 0
+#define PT_EXITED  1
+#define PT_ENDED   2
+#define PT_YIELDED 3
+
+/**
+ * \name Initialization
+ * @{
+ */
+
+/**
+ * Initialize a protothread.
+ *
+ * Initializes a protothread. Initialization must be done prior to
+ * starting to execute the protothread.
+ *
+ * \param pt A pointer to the protothread control structure.
+ *
+ * \sa PT_SPAWN()
+ *
+ * \hideinitializer
+ */
+#define PT_INIT(pt)   LC_INIT((pt)->lc)
+
+/** @} */
+
+/**
+ * \name Declaration and definition
+ * @{
+ */
+
+/**
+ * Declaration of a protothread.
+ *
+ * This macro is used to declare a protothread. All protothreads must
+ * be declared with this macro.
+ *
+ * \param name_args The name and arguments of the C function
+ * implementing the protothread.
+ *
+ * \hideinitializer
+ */
+#define PT_THREAD(name_args) char name_args
+
+/**
+ * Declare the start of a protothread inside the C function
+ * implementing the protothread.
+ *
+ * This macro is used to declare the starting point of a
+ * protothread. It should be placed at the start of the function in
+ * which the protothread runs. All C statements above the PT_BEGIN()
+ * invokation will be executed each time the protothread is scheduled.
+ *
+ * \param pt A pointer to the protothread control structure.
+ *
+ * \hideinitializer
+ */
+#define PT_BEGIN(pt) { char PT_YIELD_FLAG = 1; LC_RESUME((pt)->lc)
+
+/**
+ * Declare the end of a protothread.
+ *
+ * This macro is used for declaring that a protothread ends. It must
+ * always be used together with a matching PT_BEGIN() macro.
+ *
+ * \param pt A pointer to the protothread control structure.
+ *
+ * \hideinitializer
+ */
+#define PT_END(pt) LC_END((pt)->lc); PT_YIELD_FLAG = 0; \
+                   PT_INIT(pt); return PT_ENDED; }
+
+/** @} */
+
+/**
+ * \name Blocked wait
+ * @{
+ */
+
+/**
+ * Block and wait until condition is true.
+ *
+ * This macro blocks the protothread until the specified condition is
+ * true.
+ *
+ * \param pt A pointer to the protothread control structure.
+ * \param condition The condition.
+ *
+ * \hideinitializer
+ */
+#define PT_WAIT_UNTIL(pt, condition)           \
+  do {                                         \
+    LC_SET((pt)->lc);                          \
+    if(!(condition)) {                         \
+      return PT_WAITING;                       \
+    }                                          \
+  } while(0)
+
+/**
+ * Block and wait while condition is true.
+ *
+ * This function blocks and waits while condition is true. See
+ * PT_WAIT_UNTIL().
+ *
+ * \param pt A pointer to the protothread control structure.
+ * \param cond The condition.
+ *
+ * \hideinitializer
+ */
+#define PT_WAIT_WHILE(pt, cond)  PT_WAIT_UNTIL((pt), !(cond))
+
+/** @} */
+
+/**
+ * \name Hierarchical protothreads
+ * @{
+ */
+
+/**
+ * Block and wait until a child protothread completes.
+ *
+ * This macro schedules a child protothread. The current protothread
+ * will block until the child protothread completes.
+ *
+ * \note The child protothread must be manually initialized with the
+ * PT_INIT() function before this function is used.
+ *
+ * \param pt A pointer to the protothread control structure.
+ * \param thread The child protothread with arguments
+ *
+ * \sa PT_SPAWN()
+ *
+ * \hideinitializer
+ */
+#define PT_WAIT_THREAD(pt, thread) PT_WAIT_WHILE((pt), PT_SCHEDULE(thread))
+
+/**
+ * Spawn a child protothread and wait until it exits.
+ *
+ * This macro spawns a child protothread and waits until it exits. The
+ * macro can only be used within a protothread.
+ *
+ * \param pt A pointer to the protothread control structure.
+ * \param child A pointer to the child protothread's control structure.
+ * \param thread The child protothread with arguments
+ *
+ * \hideinitializer
+ */
+#define PT_SPAWN(pt, child, thread)            \
+  do {                                         \
+    PT_INIT((child));                          \
+    PT_WAIT_THREAD((pt), (thread));            \
+  } while(0)
+
+/** @} */
+
+/**
+ * \name Exiting and restarting
+ * @{
+ */
+
+/**
+ * Restart the protothread.
+ *
+ * This macro will block and cause the running protothread to restart
+ * its execution at the place of the PT_BEGIN() call.
+ *
+ * \param pt A pointer to the protothread control structure.
+ *
+ * \hideinitializer
+ */
+#define PT_RESTART(pt)                         \
+  do {                                         \
+    PT_INIT(pt);                               \
+    return PT_WAITING;                 \
+  } while(0)
+
+/**
+ * Exit the protothread.
+ *
+ * This macro causes the protothread to exit. If the protothread was
+ * spawned by another protothread, the parent protothread will become
+ * unblocked and can continue to run.
+ *
+ * \param pt A pointer to the protothread control structure.
+ *
+ * \hideinitializer
+ */
+#define PT_EXIT(pt)                            \
+  do {                                         \
+    PT_INIT(pt);                               \
+    return PT_EXITED;                  \
+  } while(0)
+
+/** @} */
+
+/**
+ * \name Calling a protothread
+ * @{
+ */
+
+/**
+ * Schedule a protothread.
+ *
+ * This function shedules a protothread. The return value of the
+ * function is non-zero if the protothread is running or zero if the
+ * protothread has exited.
+ *
+ * \param f The call to the C function implementing the protothread to
+ * be scheduled
+ *
+ * \hideinitializer
+ */
+#define PT_SCHEDULE(f) ((f) == PT_WAITING)
+
+/** @} */
+
+/**
+ * \name Yielding from a protothread
+ * @{
+ */
+
+/**
+ * Yield from the current protothread.
+ *
+ * This function will yield the protothread, thereby allowing other
+ * processing to take place in the system.
+ *
+ * \param pt A pointer to the protothread control structure.
+ *
+ * \hideinitializer
+ */
+#define PT_YIELD(pt)                           \
+  do {                                         \
+    PT_YIELD_FLAG = 0;                         \
+    LC_SET((pt)->lc);                          \
+    if(PT_YIELD_FLAG == 0) {                   \
+      return PT_YIELDED;                       \
+    }                                          \
+  } while(0)
+
+/**
+ * \brief      Yield from the protothread until a condition occurs.
+ * \param pt   A pointer to the protothread control structure.
+ * \param cond The condition.
+ *
+ *             This function will yield the protothread, until the
+ *             specified condition evaluates to true.
+ *
+ *
+ * \hideinitializer
+ */
+#define PT_YIELD_UNTIL(pt, cond)               \
+  do {                                         \
+    PT_YIELD_FLAG = 0;                         \
+    LC_SET((pt)->lc);                          \
+    if((PT_YIELD_FLAG == 0) || !(cond)) {      \
+      return PT_YIELDED;                       \
+    }                                          \
+  } while(0)
+
+/** @} */
+
+#endif /* __PT_H__ */
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/timer.c b/Projects/Incomplete/Webserver/Lib/uip/timer.c
new file mode 100644 (file)
index 0000000..74eedf6
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/timer.c
@@ -0,0 +1,127 @@
+/**
+ * \addtogroup timer
+ * @{
+ */
+
+/**
+ * \file
+ * Timer library implementation.
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ */
+
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: timer.c,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+#include "clock.h"
+#include "timer.h"
+
+/*---------------------------------------------------------------------------*/
+/**
+ * Set a timer.
+ *
+ * This function is used to set a timer for a time sometime in the
+ * future. The function timer_expired() will evaluate to true after
+ * the timer has expired.
+ *
+ * \param t A pointer to the timer
+ * \param interval The interval before the timer expires.
+ *
+ */
+void
+timer_set(struct timer *t, clock_time_t interval)
+{
+  t->interval = interval;
+  t->start = clock_time();
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * Reset the timer with the same interval.
+ *
+ * This function resets the timer with the same interval that was
+ * given to the timer_set() function. The start point of the interval
+ * is the exact time that the timer last expired. Therefore, this
+ * function will cause the timer to be stable over time, unlike the
+ * timer_rester() function.
+ *
+ * \param t A pointer to the timer.
+ *
+ * \sa timer_restart()
+ */
+void
+timer_reset(struct timer *t)
+{
+  t->start += t->interval;
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * Restart the timer from the current point in time
+ *
+ * This function restarts a timer with the same interval that was
+ * given to the timer_set() function. The timer will start at the
+ * current time.
+ *
+ * \note A periodic timer will drift if this function is used to reset
+ * it. For preioric timers, use the timer_reset() function instead.
+ *
+ * \param t A pointer to the timer.
+ *
+ * \sa timer_reset()
+ */
+void
+timer_restart(struct timer *t)
+{
+  t->start = clock_time();
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * Check if a timer has expired.
+ *
+ * This function tests if a timer has expired and returns true or
+ * false depending on its status.
+ *
+ * \param t A pointer to the timer
+ *
+ * \return Non-zero if the timer has expired, zero otherwise.
+ *
+ */
+int
+timer_expired(struct timer *t)
+{
+  return (clock_time_t)(clock_time() - t->start) >= (clock_time_t)t->interval;
+}
+/*---------------------------------------------------------------------------*/
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/timer.h b/Projects/Incomplete/Webserver/Lib/uip/timer.h
new file mode 100644 (file)
index 0000000..057bea4
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/timer.h
@@ -0,0 +1,86 @@
+/**
+ * \defgroup timer Timer library
+ *
+ * The timer library provides functions for setting, resetting and
+ * restarting timers, and for checking if a timer has expired. An
+ * application must "manually" check if its timers have expired; this
+ * is not done automatically.
+ *
+ * A timer is declared as a \c struct \c timer and all access to the
+ * timer is made by a pointer to the declared timer.
+ *
+ * \note The timer library uses the \ref clock "Clock library" to
+ * measure time. Intervals should be specified in the format used by
+ * the clock library.
+ *
+ * @{
+ */
+
+
+/**
+ * \file
+ * Timer library header file.
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ */
+
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: timer.h,v 1.3 2006/06/11 21:46:39 adam Exp $
+ */
+#ifndef __TIMER_H__
+#define __TIMER_H__
+
+#include "clock.h"
+
+/**
+ * A timer.
+ *
+ * This structure is used for declaring a timer. The timer must be set
+ * with timer_set() before it can be used.
+ *
+ * \hideinitializer
+ */
+struct timer {
+  clock_time_t start;
+  clock_time_t interval;
+};
+
+void timer_set(struct timer *t, clock_time_t interval);
+void timer_reset(struct timer *t);
+void timer_restart(struct timer *t);
+int timer_expired(struct timer *t);
+
+#endif /* __TIMER_H__ */
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip-fw.c b/Projects/Incomplete/Webserver/Lib/uip/uip-fw.c
new file mode 100644 (file)
index 0000000..01858ea
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip-fw.c
@@ -0,0 +1,532 @@
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: uip-fw.c,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+/**
+ * \addtogroup uip
+ * @{
+ */
+
+/**
+ * \defgroup uipfw uIP packet forwarding
+ * @{
+ *
+ */
+
+/**
+ * \file
+ * uIP packet forwarding.
+ * \author Adam Dunkels <adam@sics.se>
+ *
+ * This file implements a number of simple functions which do packet
+ * forwarding over multiple network interfaces with uIP.
+ *
+ */
+
+#include "uip.h"
+#include "uip_arch.h"
+#include "uip-fw.h"
+
+#include <string.h> /* for memcpy() */
+
+/*
+ * The list of registered network interfaces.
+ */
+static struct uip_fw_netif *netifs = NULL;
+
+/*
+ * A pointer to the default network interface.
+ */
+static struct uip_fw_netif *defaultnetif = NULL;
+
+struct tcpip_hdr {
+  /* IP header. */
+  u8_t vhl,
+    tos;
+  u16_t len,
+    ipid,
+    ipoffset;
+  u8_t ttl,
+    proto;
+  u16_t ipchksum;
+  u16_t srcipaddr[2],
+    destipaddr[2];
+  
+  /* TCP header. */
+  u16_t srcport,
+    destport;
+  u8_t seqno[4],
+    ackno[4],
+    tcpoffset,
+    flags,
+    wnd[2];
+  u16_t tcpchksum;
+  u8_t urgp[2];
+  u8_t optdata[4];
+};
+
+struct icmpip_hdr {
+  /* IP header. */
+  u8_t vhl,
+    tos,
+    len[2],
+    ipid[2],
+    ipoffset[2],
+    ttl,
+    proto;
+  u16_t ipchksum;
+  u16_t srcipaddr[2],
+    destipaddr[2];
+  /* ICMP (echo) header. */
+  u8_t type, icode;
+  u16_t icmpchksum;
+  u16_t id, seqno;
+  u8_t payload[1];
+};
+
+/* ICMP ECHO. */
+#define ICMP_ECHO 8
+
+/* ICMP TIME-EXCEEDED. */
+#define ICMP_TE 11
+
+/*
+ * Pointer to the TCP/IP headers of the packet in the uip_buf buffer.
+ */
+#define BUF ((struct tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
+
+/*
+ * Pointer to the ICMP/IP headers of the packet in the uip_buf buffer.
+ */
+#define ICMPBUF ((struct icmpip_hdr *)&uip_buf[UIP_LLH_LEN])
+
+/*
+ * Certain fields of an IP packet that are used for identifying
+ * duplicate packets.
+ */
+struct fwcache_entry {
+  u16_t timer;
+  
+  u16_t srcipaddr[2];
+  u16_t destipaddr[2];
+  u16_t ipid;
+  u8_t proto;
+  u8_t unused;
+
+#if notdef
+  u16_t payload[2];
+#endif
+
+#if UIP_REASSEMBLY > 0
+  u16_t len, offset;
+#endif
+};
+
+/*
+ * The number of packets to remember when looking for duplicates.
+ */
+#ifdef UIP_CONF_FWCACHE_SIZE
+#define FWCACHE_SIZE UIP_CONF_FWCACHE_SIZE
+#else
+#define FWCACHE_SIZE 2
+#endif
+
+
+/*
+ * A cache of packet header fields which are used for
+ * identifying duplicate packets.
+ */
+static struct fwcache_entry fwcache[FWCACHE_SIZE];
+
+/**
+ * \internal
+ * The time that a packet cache is active.
+ */
+#define FW_TIME 20
+
+/*------------------------------------------------------------------------------*/
+/**
+ * Initialize the uIP packet forwarding module.
+ */
+/*------------------------------------------------------------------------------*/
+void
+uip_fw_init(void)
+{
+  struct uip_fw_netif *t;
+  defaultnetif = NULL;
+  while(netifs != NULL) {
+    t = netifs;
+    netifs = netifs->next;
+    t->next = NULL;
+  }
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * \internal
+ * Check if an IP address is within the network defined by an IP
+ * address and a netmask.
+ *
+ * \param ipaddr The IP address to be checked.
+ * \param netipaddr The IP address of the network.
+ * \param netmask The netmask of the network.
+ *
+ * \return Non-zero if IP address is in network, zero otherwise.
+ */
+/*------------------------------------------------------------------------------*/
+static unsigned char
+ipaddr_maskcmp(u16_t *ipaddr, u16_t *netipaddr, u16_t *netmask)
+{
+  return (ipaddr[0] & netmask [0]) == (netipaddr[0] & netmask[0]) &&
+    (ipaddr[1] & netmask[1]) == (netipaddr[1] & netmask[1]);
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * \internal
+ * Send out an ICMP TIME-EXCEEDED message.
+ *
+ * This function replaces the packet in the uip_buf buffer with the
+ * ICMP packet.
+ */
+/*------------------------------------------------------------------------------*/
+static void
+time_exceeded(void)
+{
+  u16_t tmp16;
+
+  /* We don't send out ICMP errors for ICMP messages. */
+  if(ICMPBUF->proto == UIP_PROTO_ICMP) {
+    uip_len = 0;
+    return;
+  }
+  /* Copy fields from packet header into payload of this ICMP packet. */
+  memcpy(&(ICMPBUF->payload[0]), ICMPBUF, 28);
+
+  /* Set the ICMP type and code. */
+  ICMPBUF->type = ICMP_TE;
+  ICMPBUF->icode = 0;
+
+  /* Calculate the ICMP checksum. */
+  ICMPBUF->icmpchksum = 0;
+  ICMPBUF->icmpchksum = ~uip_chksum((u16_t *)&(ICMPBUF->type), 36);
+
+  /* Set the IP destination address to be the source address of the
+     original packet. */
+  tmp16= BUF->destipaddr[0];
+  BUF->destipaddr[0] = BUF->srcipaddr[0];
+  BUF->srcipaddr[0] = tmp16;
+  tmp16 = BUF->destipaddr[1];
+  BUF->destipaddr[1] = BUF->srcipaddr[1];
+  BUF->srcipaddr[1] = tmp16;
+
+  /* Set our IP address as the source address. */
+  BUF->srcipaddr[0] = uip_hostaddr[0];
+  BUF->srcipaddr[1] = uip_hostaddr[1];
+
+  /* The size of the ICMP time exceeded packet is 36 + the size of the
+     IP header (20) = 56. */
+  uip_len = 56;
+  ICMPBUF->len[0] = 0;
+  ICMPBUF->len[1] = uip_len;
+
+  /* Fill in the other fields in the IP header. */
+  ICMPBUF->vhl = 0x45;
+  ICMPBUF->tos = 0;
+  ICMPBUF->ipoffset[0] = ICMPBUF->ipoffset[1] = 0;
+  ICMPBUF->ttl  = UIP_TTL;
+  ICMPBUF->proto = UIP_PROTO_ICMP;
+  
+  /* Calculate IP checksum. */
+  ICMPBUF->ipchksum = 0;
+  ICMPBUF->ipchksum = ~(uip_ipchksum());
+
+
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * \internal
+ * Register a packet in the forwarding cache so that it won't be
+ * forwarded again.
+ */
+/*------------------------------------------------------------------------------*/
+static void
+fwcache_register(void)
+{
+  struct fwcache_entry *fw;
+  int i, oldest;
+
+  oldest = FW_TIME;
+  fw = NULL;
+  
+  /* Find the oldest entry in the cache. */
+  for(i = 0; i < FWCACHE_SIZE; ++i) {
+    if(fwcache[i].timer == 0) {
+      fw = &fwcache[i];
+      break;
+    } else if(fwcache[i].timer <= oldest) {
+      fw = &fwcache[i];
+      oldest = fwcache[i].timer;
+    }
+  }
+
+  fw->timer = FW_TIME;
+  fw->ipid = BUF->ipid;
+  fw->srcipaddr[0] = BUF->srcipaddr[0];
+  fw->srcipaddr[1] = BUF->srcipaddr[1];
+  fw->destipaddr[0] = BUF->destipaddr[0];
+  fw->destipaddr[1] = BUF->destipaddr[1];
+  fw->proto = BUF->proto;
+#if notdef
+  fw->payload[0] = BUF->srcport;
+  fw->payload[1] = BUF->destport;
+#endif
+#if UIP_REASSEMBLY > 0
+  fw->len = BUF->len;
+  fw->offset = BUF->ipoffset;
+#endif
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * \internal
+ * Find a network interface for the IP packet in uip_buf.
+ */
+/*------------------------------------------------------------------------------*/
+static struct uip_fw_netif *
+find_netif(void)
+{
+  struct uip_fw_netif *netif;
+  
+  /* Walk through every network interface to check for a match. */
+  for(netif = netifs; netif != NULL; netif = netif->next) {
+    if(ipaddr_maskcmp(BUF->destipaddr, netif->ipaddr,
+                     netif->netmask)) {
+      /* If there was a match, we break the loop. */
+      return netif;
+    }
+  }
+  
+  /* If no matching netif was found, we use default netif. */
+  return defaultnetif;
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * Output an IP packet on the correct network interface.
+ *
+ * The IP packet should be present in the uip_buf buffer and its
+ * length in the global uip_len variable.
+ *
+ * \retval UIP_FW_ZEROLEN Indicates that a zero-length packet
+ * transmission was attempted and that no packet was sent.
+ *
+ * \retval UIP_FW_NOROUTE No suitable network interface could be found
+ * for the outbound packet, and the packet was not sent.
+ *
+ * \return The return value from the actual network interface output
+ * function is passed unmodified as a return value.
+ */
+/*------------------------------------------------------------------------------*/
+u8_t
+uip_fw_output(void)
+{
+  struct uip_fw_netif *netif;
+
+  if(uip_len == 0) {
+    return UIP_FW_ZEROLEN;
+  }
+
+  fwcache_register();
+
+#if UIP_BROADCAST
+  /* Link local broadcasts go out on all interfaces. */
+  if(/*BUF->proto == UIP_PROTO_UDP &&*/
+     BUF->destipaddr[0] == 0xffff &&
+     BUF->destipaddr[1] == 0xffff) {
+    if(defaultnetif != NULL) {
+      defaultnetif->output();
+    }
+    for(netif = netifs; netif != NULL; netif = netif->next) {
+      netif->output();
+    }
+    return UIP_FW_OK;
+  }
+#endif /* UIP_BROADCAST */
+  
+  netif = find_netif();
+  /*  printf("uip_fw_output: netif %p ->output %p len %d\n", netif,
+        netif->output,
+        uip_len);*/
+
+  if(netif == NULL) {
+    return UIP_FW_NOROUTE;
+  }
+  /* If we now have found a suitable network interface, we call its
+     output function to send out the packet. */
+  return netif->output();
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * Forward an IP packet in the uip_buf buffer.
+ *
+ *
+ *
+ * \return UIP_FW_FORWARDED if the packet was forwarded, UIP_FW_LOCAL if
+ * the packet should be processed locally.
+ */
+/*------------------------------------------------------------------------------*/
+u8_t
+uip_fw_forward(void)
+{
+  struct fwcache_entry *fw;
+
+  /* First check if the packet is destined for ourselves and return 0
+     to indicate that the packet should be processed locally. */
+  if(BUF->destipaddr[0] == uip_hostaddr[0] &&
+     BUF->destipaddr[1] == uip_hostaddr[1]) {
+    return UIP_FW_LOCAL;
+  }
+
+  /* If we use ping IP address configuration, and our IP address is
+     not yet configured, we should intercept all ICMP echo packets. */
+#if UIP_PINGADDRCONF
+  if((uip_hostaddr[0] | uip_hostaddr[1]) == 0 &&
+     BUF->proto == UIP_PROTO_ICMP &&
+     ICMPBUF->type == ICMP_ECHO) {
+    return UIP_FW_LOCAL;
+  }
+#endif /* UIP_PINGADDRCONF */
+
+  /* Check if the packet is in the forwarding cache already, and if so
+     we drop it. */
+
+  for(fw = fwcache; fw < &fwcache[FWCACHE_SIZE]; ++fw) {
+    if(fw->timer != 0 &&
+#if UIP_REASSEMBLY > 0
+       fw->len == BUF->len &&
+       fw->offset == BUF->ipoffset &&
+#endif
+       fw->ipid == BUF->ipid &&
+       fw->srcipaddr[0] == BUF->srcipaddr[0] &&
+       fw->srcipaddr[1] == BUF->srcipaddr[1] &&
+       fw->destipaddr[0] == BUF->destipaddr[0] &&
+       fw->destipaddr[1] == BUF->destipaddr[1] &&
+#if notdef
+       fw->payload[0] == BUF->srcport &&
+       fw->payload[1] == BUF->destport &&
+#endif
+       fw->proto == BUF->proto) {
+      /* Drop packet. */
+      return UIP_FW_FORWARDED;
+    }
+  }
+
+  /* If the TTL reaches zero we produce an ICMP time exceeded message
+     in the uip_buf buffer and forward that packet back to the sender
+     of the packet. */
+  if(BUF->ttl <= 1) {
+    /* No time exceeded for broadcasts and multicasts! */
+    if(BUF->destipaddr[0] == 0xffff && BUF->destipaddr[1] == 0xffff) {
+      return UIP_FW_LOCAL;
+    }
+    time_exceeded();
+  }
+  
+  /* Decrement the TTL (time-to-live) value in the IP header */
+  BUF->ttl = BUF->ttl - 1;
+  
+  /* Update the IP checksum. */
+  if(BUF->ipchksum >= HTONS(0xffff - 0x0100)) {
+    BUF->ipchksum = BUF->ipchksum + HTONS(0x0100) + 1;
+  } else {
+    BUF->ipchksum = BUF->ipchksum + HTONS(0x0100);
+  }
+
+  if(uip_len > 0) {
+    uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_TCPIP_HLEN];
+    uip_fw_output();
+  }
+
+#if UIP_BROADCAST
+  if(BUF->destipaddr[0] == 0xffff && BUF->destipaddr[1] == 0xffff) {
+    return UIP_FW_LOCAL;
+  }
+#endif /* UIP_BROADCAST */
+
+  /* Return non-zero to indicate that the packet was forwarded and that no
+     other processing should be made. */
+  return UIP_FW_FORWARDED;
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * Register a network interface with the forwarding module.
+ *
+ * \param netif A pointer to the network interface that is to be
+ * registered.
+ */
+/*------------------------------------------------------------------------------*/
+void
+uip_fw_register(struct uip_fw_netif *netif)
+{
+  netif->next = netifs;
+  netifs = netif;
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * Register a default network interface.
+ *
+ * All packets that don't go out on any of the other interfaces will
+ * be routed to the default interface.
+ *
+ * \param netif A pointer to the network interface that is to be
+ * registered.
+ */
+/*------------------------------------------------------------------------------*/
+void
+uip_fw_default(struct uip_fw_netif *netif)
+{
+  defaultnetif = netif;
+}
+/*------------------------------------------------------------------------------*/
+/**
+ * Perform periodic processing.
+ */
+/*------------------------------------------------------------------------------*/
+void
+uip_fw_periodic(void)
+{
+  struct fwcache_entry *fw;
+  for(fw = fwcache; fw < &fwcache[FWCACHE_SIZE]; ++fw) {
+    if(fw->timer > 0) {
+      --fw->timer;
+    }
+  }
+}
+/*------------------------------------------------------------------------------*/

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip-fw.h b/Projects/Incomplete/Webserver/Lib/uip/uip-fw.h
new file mode 100644 (file)
index 0000000..9033850
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip-fw.h
@@ -0,0 +1,176 @@
+/**
+ * \addtogroup uipfw
+ * @{
+ */
+
+/**
+ * \file
+ * uIP packet forwarding header file.
+ * \author Adam Dunkels <adam@sics.se>
+ */
+
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: uip-fw.h,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+#ifndef __UIP_FW_H__
+#define __UIP_FW_H__
+
+#include "uip.h"
+
+/**
+ * Representation of a uIP network interface.
+ */
+struct uip_fw_netif {
+  struct uip_fw_netif *next;  /**< Pointer to the next interface when
+                                linked in a list. */
+  u16_t ipaddr[2];            /**< The IP address of this interface. */
+  u16_t netmask[2];           /**< The netmask of the interface. */
+  u8_t (* output)(void);
+                              /**< A pointer to the function that
+                                sends a packet. */
+};
+
+/**
+ * Intantiating macro for a uIP network interface.
+ *
+ * Example:
+ \code
+ struct uip_fw_netif slipnetif =
+   {UIP_FW_NETIF(192,168,76,1, 255,255,255,0, slip_output)};
+ \endcode
+ * \param ip1,ip2,ip3,ip4 The IP address of the network interface.
+ *
+ * \param nm1,nm2,nm3,nm4 The netmask of the network interface.
+ *
+ * \param outputfunc A pointer to the output function of the network interface.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_NETIF(ip1,ip2,ip3,ip4, nm1,nm2,nm3,nm4, outputfunc) \
+        NULL, \
+       {HTONS((ip1 << 8) | ip2), HTONS((ip3 << 8) | ip4)}, \
+       {HTONS((nm1 << 8) | nm2), HTONS((nm3 << 8) | nm4)}, \
+        outputfunc
+
+/**
+ * Set the IP address of a network interface.
+ *
+ * \param netif A pointer to the uip_fw_netif structure for the network interface.
+ *
+ * \param addr A pointer to an IP address.
+ *
+ * \hideinitializer
+ */
+#define uip_fw_setipaddr(netif, addr) \
+        do { (netif)->ipaddr[0] = ((u16_t *)(addr))[0]; \
+             (netif)->ipaddr[1] = ((u16_t *)(addr))[1]; } while(0)
+/**
+ * Set the netmask of a network interface.
+ *
+ * \param netif A pointer to the uip_fw_netif structure for the network interface.
+ *
+ * \param addr A pointer to an IP address representing the netmask.
+ *
+ * \hideinitializer
+ */
+#define uip_fw_setnetmask(netif, addr) \
+        do { (netif)->netmask[0] = ((u16_t *)(addr))[0]; \
+             (netif)->netmask[1] = ((u16_t *)(addr))[1]; } while(0)
+
+void uip_fw_init(void);
+u8_t uip_fw_forward(void);
+u8_t uip_fw_output(void);
+void uip_fw_register(struct uip_fw_netif *netif);
+void uip_fw_default(struct uip_fw_netif *netif);
+void uip_fw_periodic(void);
+
+
+/**
+ * A non-error message that indicates that a packet should be
+ * processed locally.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_LOCAL     0
+
+/**
+ * A non-error message that indicates that something went OK.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_OK        0
+
+/**
+ * A non-error message that indicates that a packet was forwarded.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_FORWARDED 1
+
+/**
+ * A non-error message that indicates that a zero-length packet
+ * transmission was attempted, and that no packet was sent.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_ZEROLEN   2
+
+/**
+ * An error message that indicates that a packet that was too large
+ * for the outbound network interface was detected.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_TOOLARGE  3
+
+/**
+ * An error message that indicates that no suitable interface could be
+ * found for an outbound packet.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_NOROUTE   4
+
+/**
+ * An error message that indicates that a packet that should be
+ * forwarded or output was dropped.
+ *
+ * \hideinitializer
+ */
+#define UIP_FW_DROPPED   5
+
+
+#endif /* __UIP_FW_H__ */
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip-neighbor.c b/Projects/Incomplete/Webserver/Lib/uip/uip-neighbor.c
new file mode 100644 (file)
index 0000000..739c03e
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip-neighbor.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * $Id: uip-neighbor.c,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \file
+ *         Database of link-local neighbors, used by IPv6 code and
+ *         to be used by a future ARP code rewrite.
+ * \author
+ *         Adam Dunkels <adam@sics.se>
+ */
+
+#include "uip-neighbor.h"
+
+#include <string.h>
+
+#define MAX_TIME 128
+
+#ifdef UIP_NEIGHBOR_CONF_ENTRIES
+#define ENTRIES UIP_NEIGHBOR_CONF_ENTRIES
+#else /* UIP_NEIGHBOR_CONF_ENTRIES */
+#define ENTRIES 8
+#endif /* UIP_NEIGHBOR_CONF_ENTRIES */
+
+struct neighbor_entry {
+  uip_ipaddr_t ipaddr;
+  struct uip_neighbor_addr addr;
+  u8_t time;
+};
+static struct neighbor_entry entries[ENTRIES];
+
+/*---------------------------------------------------------------------------*/
+void
+uip_neighbor_init(void)
+{
+  int i;
+
+  for(i = 0; i < ENTRIES; ++i) {
+    entries[i].time = MAX_TIME;
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+uip_neighbor_periodic(void)
+{
+  int i;
+
+  for(i = 0; i < ENTRIES; ++i) {
+    if(entries[i].time < MAX_TIME) {
+      entries[i].time++;
+    }
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+uip_neighbor_add(uip_ipaddr_t ipaddr, struct uip_neighbor_addr *addr)
+{
+  int i, oldest;
+  u8_t oldest_time;
+
+  printf("Adding neighbor with link address %02x:%02x:%02x:%02x:%02x:%02x\n",
+        addr->addr.addr[0], addr->addr.addr[1], addr->addr.addr[2], addr->addr.addr[3],
+        addr->addr.addr[4], addr->addr.addr[5]);
+  
+  /* Find the first unused entry or the oldest used entry. */
+  oldest_time = 0;
+  oldest = 0;
+  for(i = 0; i < ENTRIES; ++i) {
+    if(entries[i].time == MAX_TIME) {
+      oldest = i;
+      break;
+    }
+    if(uip_ipaddr_cmp(entries[i].ipaddr, addr)) {
+      oldest = i;
+      break;
+    }
+    if(entries[i].time > oldest_time) {
+      oldest = i;
+      oldest_time = entries[i].time;
+    }
+  }
+
+  /* Use the oldest or first free entry (either pointed to by the
+     "oldest" variable). */
+  entries[oldest].time = 0;
+  uip_ipaddr_copy(entries[oldest].ipaddr, ipaddr);
+  memcpy(&entries[oldest].addr, addr, sizeof(struct uip_neighbor_addr));
+}
+/*---------------------------------------------------------------------------*/
+static struct neighbor_entry *
+find_entry(uip_ipaddr_t ipaddr)
+{
+  int i;
+  
+  for(i = 0; i < ENTRIES; ++i) {
+    if(uip_ipaddr_cmp(entries[i].ipaddr, ipaddr)) {
+      return &entries[i];
+    }
+  }
+  return NULL;
+}
+/*---------------------------------------------------------------------------*/
+void
+uip_neighbor_update(uip_ipaddr_t ipaddr)
+{
+  struct neighbor_entry *e;
+
+  e = find_entry(ipaddr);
+  if(e != NULL) {
+    e->time = 0;
+  }
+}
+/*---------------------------------------------------------------------------*/
+struct uip_neighbor_addr *
+uip_neighbor_lookup(uip_ipaddr_t ipaddr)
+{
+  struct neighbor_entry *e;
+
+  e = find_entry(ipaddr);
+  if(e != NULL) {
+    /*    printf("Lookup neighbor with link address %02x:%02x:%02x:%02x:%02x:%02x\n",
+          e->addr.addr.addr[0], e->addr.addr.addr[1], e->addr.addr.addr[2], e->addr.addr.addr[3],
+          e->addr.addr.addr[4], e->addr.addr.addr[5]);*/
+
+    return &e->addr;
+  }
+  return NULL;
+}
+/*---------------------------------------------------------------------------*/

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip-neighbor.h b/Projects/Incomplete/Webserver/Lib/uip/uip-neighbor.h
new file mode 100644 (file)
index 0000000..d3b351c
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip-neighbor.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * $Id: uip-neighbor.h,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+/**
+ * \file
+ *         Header file for database of link-local neighbors, used by
+ *         IPv6 code and to be used by future ARP code.
+ * \author
+ *         Adam Dunkels <adam@sics.se>
+ */
+
+#ifndef __UIP_NEIGHBOR_H__
+#define __UIP_NEIGHBOR_H__
+
+#include "uip.h"
+
+struct uip_neighbor_addr {
+#if UIP_NEIGHBOR_CONF_ADDRTYPE
+  UIP_NEIGHBOR_CONF_ADDRTYPE addr;
+#else
+  struct uip_eth_addr addr;
+#endif
+};
+
+void uip_neighbor_init(void);
+void uip_neighbor_add(uip_ipaddr_t ipaddr, struct uip_neighbor_addr *addr);
+void uip_neighbor_update(uip_ipaddr_t ipaddr);
+struct uip_neighbor_addr *uip_neighbor_lookup(uip_ipaddr_t ipaddr);
+void uip_neighbor_periodic(void);
+
+#endif /* __UIP-NEIGHBOR_H__ */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip-split.c b/Projects/Incomplete/Webserver/Lib/uip/uip-split.c
new file mode 100644 (file)
index 0000000..a910ee6
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip-split.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: uip-split.c,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+
+#include <string.h>
+
+#include "uip-split.h"
+#include "uip.h"
+#include "uip-fw.h"
+#include "uip_arch.h"
+
+
+
+#define BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
+
+/*-----------------------------------------------------------------------------*/
+void
+uip_split_output(void)
+{
+  u16_t tcplen, len1, len2;
+
+  /* We only try to split maximum sized TCP segments. */
+  if(BUF->proto == UIP_PROTO_TCP &&
+     uip_len == UIP_BUFSIZE - UIP_LLH_LEN) {
+
+    tcplen = uip_len - UIP_TCPIP_HLEN;
+    /* Split the segment in two. If the original packet length was
+       odd, we make the second packet one byte larger. */
+    len1 = len2 = tcplen / 2;
+    if(len1 + len2 < tcplen) {
+      ++len2;
+    }
+
+    /* Create the first packet. This is done by altering the length
+       field of the IP header and updating the checksums. */
+    uip_len = len1 + UIP_TCPIP_HLEN;
+#if UIP_CONF_IPV6
+    /* For IPv6, the IP length field does not include the IPv6 IP header
+       length. */
+    BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
+    BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
+#else /* UIP_CONF_IPV6 */
+    BUF->len[0] = uip_len >> 8;
+    BUF->len[1] = uip_len & 0xff;
+#endif /* UIP_CONF_IPV6 */
+    
+    /* Recalculate the TCP checksum. */
+    BUF->tcpchksum = 0;
+    BUF->tcpchksum = ~(uip_tcpchksum());
+
+#if !UIP_CONF_IPV6
+    /* Recalculate the IP checksum. */
+    BUF->ipchksum = 0;
+    BUF->ipchksum = ~(uip_ipchksum());
+#endif /* UIP_CONF_IPV6 */
+    
+    /* Transmit the first packet. */
+    /*    uip_fw_output();*/
+    tcpip_output();
+
+    /* Now, create the second packet. To do this, it is not enough to
+       just alter the length field, but we must also update the TCP
+       sequence number and point the uip_appdata to a new place in
+       memory. This place is detemined by the length of the first
+       packet (len1). */
+    uip_len = len2 + UIP_TCPIP_HLEN;
+#if UIP_CONF_IPV6
+    /* For IPv6, the IP length field does not include the IPv6 IP header
+       length. */
+    BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
+    BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
+#else /* UIP_CONF_IPV6 */
+    BUF->len[0] = uip_len >> 8;
+    BUF->len[1] = uip_len & 0xff;
+#endif /* UIP_CONF_IPV6 */
+    
+    /*    uip_appdata += len1;*/
+    memcpy(uip_appdata, (u8_t *)uip_appdata + len1, len2);
+
+    uip_add32(BUF->seqno, len1);
+    BUF->seqno[0] = uip_acc32[0];
+    BUF->seqno[1] = uip_acc32[1];
+    BUF->seqno[2] = uip_acc32[2];
+    BUF->seqno[3] = uip_acc32[3];
+    
+    /* Recalculate the TCP checksum. */
+    BUF->tcpchksum = 0;
+    BUF->tcpchksum = ~(uip_tcpchksum());
+
+#if !UIP_CONF_IPV6
+    /* Recalculate the IP checksum. */
+    BUF->ipchksum = 0;
+    BUF->ipchksum = ~(uip_ipchksum());
+#endif /* UIP_CONF_IPV6 */
+
+    /* Transmit the second packet. */
+    /*    uip_fw_output();*/
+    tcpip_output();
+  } else {
+    /*    uip_fw_output();*/
+    tcpip_output();
+  }
+     
+}
+/*-----------------------------------------------------------------------------*/

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip-split.h b/Projects/Incomplete/Webserver/Lib/uip/uip-split.h
new file mode 100644 (file)
index 0000000..c2c1789
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip-split.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: uip-split.h,v 1.2 2006/06/12 08:00:30 adam Exp $
+ */
+/**
+ * \addtogroup uip
+ * @{
+ */
+
+/**
+ * \defgroup uipsplit uIP TCP throughput booster hack
+ * @{
+ *
+ * The basic uIP TCP implementation only allows each TCP connection to
+ * have a single TCP segment in flight at any given time. Because of
+ * the delayed ACK algorithm employed by most TCP receivers, uIP's
+ * limit on the amount of in-flight TCP segments seriously reduces the
+ * maximum achievable throughput for sending data from uIP.
+ *
+ * The uip-split module is a hack which tries to remedy this
+ * situation. By splitting maximum sized outgoing TCP segments into
+ * two, the delayed ACK algorithm is not invoked at TCP
+ * receivers. This improves the throughput when sending data from uIP
+ * by orders of magnitude.
+ *
+ * The uip-split module uses the uip-fw module (uIP IP packet
+ * forwarding) for sending packets. Therefore, the uip-fw module must
+ * be set up with the appropriate network interfaces for this module
+ * to work.
+ */
+
+
+/**
+ * \file
+ * Module for splitting outbound TCP segments in two to avoid the
+ * delayed ACK throughput degradation.
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ *
+ */
+
+#ifndef __UIP_SPLIT_H__
+#define __UIP_SPLIT_H__
+
+/**
+ * Handle outgoing packets.
+ *
+ * This function inspects an outgoing packet in the uip_buf buffer and
+ * sends it out using the uip_fw_output() function. If the packet is a
+ * full-sized TCP segment it will be split into two segments and
+ * transmitted separately. This function should be called instead of
+ * the actual device driver output function, or the uip_fw_output()
+ * function.
+ *
+ * The headers of the outgoing packet is assumed to be in the uip_buf
+ * buffer and the payload is assumed to be wherever uip_appdata
+ * points. The length of the outgoing packet is assumed to be in the
+ * uip_len variable.
+ *
+ */
+void uip_split_output(void);
+
+#endif /* __UIP_SPLIT_H__ */
+
+/** @} */
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip.c b/Projects/Incomplete/Webserver/Lib/uip/uip.c
new file mode 100644 (file)
index 0000000..ee88514
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip.c
@@ -0,0 +1,1897 @@
+#define DEBUG_PRINTF(...) /*printf(__VA_ARGS__)*/
+
+/**
+ * \defgroup uip The uIP TCP/IP stack
+ * @{
+ *
+ * uIP is an implementation of the TCP/IP protocol stack intended for
+ * small 8-bit and 16-bit microcontrollers.
+ *
+ * uIP provides the necessary protocols for Internet communication,
+ * with a very small code footprint and RAM requirements - the uIP
+ * code size is on the order of a few kilobytes and RAM usage is on
+ * the order of a few hundred bytes.
+ */
+
+/**
+ * \file
+ * The uIP TCP/IP stack code.
+ * \author Adam Dunkels <adam@dunkels.com>
+ */
+
+/*
+ * 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.
+ *
+ * $Id: uip.c,v 1.65 2006/06/11 21:46:39 adam Exp $
+ *
+ */
+
+/*
+ * uIP is a small implementation of the IP, UDP and TCP protocols (as
+ * well as some basic ICMP stuff). The implementation couples the IP,
+ * UDP, TCP and the application layers very tightly. To keep the size
+ * of the compiled code down, this code frequently uses the goto
+ * statement. While it would be possible to break the uip_process()
+ * function into many smaller functions, this would increase the code
+ * size because of the overhead of parameter passing and the fact that
+ * the optimier would not be as efficient.
+ *
+ * The principle is that we have a small buffer, called the uip_buf,
+ * in which the device driver puts an incoming packet. The TCP/IP
+ * stack parses the headers in the packet, and calls the
+ * application. If the remote host has sent data to the application,
+ * this data is present in the uip_buf and the application read the
+ * data from there. It is up to the application to put this data into
+ * a byte stream if needed. The application will not be fed with data
+ * that is out of sequence.
+ *
+ * If the application whishes to send data to the peer, it should put
+ * its data into the uip_buf. The uip_appdata pointer points to the
+ * first available byte. The TCP/IP stack will calculate the
+ * checksums, and fill in the necessary header fields and finally send
+ * the packet back to the peer.
+*/
+
+#include "uip.h"
+#include "uipopt.h"
+#include "uip_arch.h"
+
+#if UIP_CONF_IPV6
+#include "uip-neighbor.h"
+#endif /* UIP_CONF_IPV6 */
+
+#include <string.h>
+
+/*---------------------------------------------------------------------------*/
+/* Variable definitions. */
+
+
+/* The IP address of this host. If it is defined to be fixed (by
+   setting UIP_FIXEDADDR to 1 in uipopt.h), the address is set
+   here. Otherwise, the address */
+#if UIP_FIXEDADDR > 0
+const uip_ipaddr_t uip_hostaddr =
+  {HTONS((UIP_IPADDR0 << 8) | UIP_IPADDR1),
+   HTONS((UIP_IPADDR2 << 8) | UIP_IPADDR3)};
+const uip_ipaddr_t uip_draddr =
+  {HTONS((UIP_DRIPADDR0 << 8) | UIP_DRIPADDR1),
+   HTONS((UIP_DRIPADDR2 << 8) | UIP_DRIPADDR3)};
+const uip_ipaddr_t uip_netmask =
+  {HTONS((UIP_NETMASK0 << 8) | UIP_NETMASK1),
+   HTONS((UIP_NETMASK2 << 8) | UIP_NETMASK3)};
+#else
+uip_ipaddr_t uip_hostaddr, uip_draddr, uip_netmask;
+#endif /* UIP_FIXEDADDR */
+
+static const uip_ipaddr_t all_ones_addr =
+#if UIP_CONF_IPV6
+  {0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff,0xffff};
+#else /* UIP_CONF_IPV6 */
+  {0xffff,0xffff};
+#endif /* UIP_CONF_IPV6 */
+static const uip_ipaddr_t all_zeroes_addr =
+#if UIP_CONF_IPV6
+  {0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000};
+#else /* UIP_CONF_IPV6 */
+  {0x0000,0x0000};
+#endif /* UIP_CONF_IPV6 */
+
+
+#if UIP_FIXEDETHADDR
+const struct uip_eth_addr uip_ethaddr = {{UIP_ETHADDR0,
+                                         UIP_ETHADDR1,
+                                         UIP_ETHADDR2,
+                                         UIP_ETHADDR3,
+                                         UIP_ETHADDR4,
+                                         UIP_ETHADDR5}};
+#else
+struct uip_eth_addr uip_ethaddr = {{0,0,0,0,0,0}};
+#endif
+
+#ifndef UIP_CONF_EXTERNAL_BUFFER
+u8_t uip_buf[UIP_BUFSIZE + 2];   /* The packet buffer that contains
+                                   incoming packets. */
+#endif /* UIP_CONF_EXTERNAL_BUFFER */
+
+void *uip_appdata;               /* The uip_appdata pointer points to
+                                   application data. */
+void *uip_sappdata;              /* The uip_appdata pointer points to
+                                   the application data which is to
+                                   be sent. */
+#if UIP_URGDATA > 0
+void *uip_urgdata;               /* The uip_urgdata pointer points to
+                                   urgent data (out-of-band data), if
+                                   present. */
+u16_t uip_urglen, uip_surglen;
+#endif /* UIP_URGDATA > 0 */
+
+u16_t uip_len, uip_slen;
+                             /* The uip_len is either 8 or 16 bits,
+                               depending on the maximum packet
+                               size. */
+
+u8_t uip_flags;     /* The uip_flags variable is used for
+                               communication between the TCP/IP stack
+                               and the application program. */
+struct uip_conn *uip_conn;   /* uip_conn always points to the current
+                               connection. */
+
+struct uip_conn uip_conns[UIP_CONNS];
+                             /* The uip_conns array holds all TCP
+                               connections. */
+u16_t uip_listenports[UIP_LISTENPORTS];
+                             /* The uip_listenports list all currently
+                               listning ports. */
+#if UIP_UDP
+struct uip_udp_conn *uip_udp_conn;
+struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
+#endif /* UIP_UDP */
+
+static u16_t ipid;           /* Ths ipid variable is an increasing
+                               number that is used for the IP ID
+                               field. */
+
+void uip_setipid(u16_t id) { ipid = id; }
+
+static u8_t iss[4];          /* The iss variable is used for the TCP
+                               initial sequence number. */
+
+#if UIP_ACTIVE_OPEN
+static u16_t lastport;       /* Keeps track of the last port used for
+                               a new connection. */
+#endif /* UIP_ACTIVE_OPEN */
+
+/* Temporary variables. */
+u8_t uip_acc32[4];
+static u8_t c, opt;
+static u16_t tmp16;
+
+/* Structures and definitions. */
+#define TCP_FIN 0x01
+#define TCP_SYN 0x02
+#define TCP_RST 0x04
+#define TCP_PSH 0x08
+#define TCP_ACK 0x10
+#define TCP_URG 0x20
+#define TCP_CTL 0x3f
+
+#define TCP_OPT_END     0   /* End of TCP options list */
+#define TCP_OPT_NOOP    1   /* "No-operation" TCP option */
+#define TCP_OPT_MSS     2   /* Maximum segment size TCP option */
+
+#define TCP_OPT_MSS_LEN 4   /* Length of TCP MSS option. */
+
+#define ICMP_ECHO_REPLY 0
+#define ICMP_ECHO       8
+
+#define ICMP6_ECHO_REPLY             129
+#define ICMP6_ECHO                   128
+#define ICMP6_NEIGHBOR_SOLICITATION  135
+#define ICMP6_NEIGHBOR_ADVERTISEMENT 136
+
+#define ICMP6_FLAG_S (1 << 6)
+
+#define ICMP6_OPTION_SOURCE_LINK_ADDRESS 1
+#define ICMP6_OPTION_TARGET_LINK_ADDRESS 2
+
+
+/* Macros. */
+#define BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
+#define FBUF ((struct uip_tcpip_hdr *)&uip_reassbuf[0])
+#define ICMPBUF ((struct uip_icmpip_hdr *)&uip_buf[UIP_LLH_LEN])
+#define UDPBUF ((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN])
+
+
+#if UIP_STATISTICS == 1
+struct uip_stats uip_stat;
+#define UIP_STAT(s) s
+#else
+#define UIP_STAT(s)
+#endif /* UIP_STATISTICS == 1 */
+
+#if UIP_LOGGING == 1
+#include <stdio.h>
+void uip_log(char *msg);
+#define UIP_LOG(m) uip_log(m)
+#else
+#define UIP_LOG(m)
+#endif /* UIP_LOGGING == 1 */
+
+#if ! UIP_ARCH_ADD32
+void
+uip_add32(u8_t *op32, u16_t op16)
+{
+  uip_acc32[3] = op32[3] + (op16 & 0xff);
+  uip_acc32[2] = op32[2] + (op16 >> 8);
+  uip_acc32[1] = op32[1];
+  uip_acc32[0] = op32[0];
+  
+  if(uip_acc32[2] < (op16 >> 8)) {
+    ++uip_acc32[1];
+    if(uip_acc32[1] == 0) {
+      ++uip_acc32[0];
+    }
+  }
+  
+  
+  if(uip_acc32[3] < (op16 & 0xff)) {
+    ++uip_acc32[2];
+    if(uip_acc32[2] == 0) {
+      ++uip_acc32[1];
+      if(uip_acc32[1] == 0) {
+       ++uip_acc32[0];
+      }
+    }
+  }
+}
+
+#endif /* UIP_ARCH_ADD32 */
+
+#if ! UIP_ARCH_CHKSUM
+/*---------------------------------------------------------------------------*/
+static u16_t
+chksum(u16_t sum, const u8_t *data, u16_t len)
+{
+  u16_t t;
+  const u8_t *dataptr;
+  const u8_t *last_byte;
+
+  dataptr = data;
+  last_byte = data + len - 1;
+  
+  while(dataptr < last_byte) { /* At least two more bytes */
+    t = (dataptr[0] << 8) + dataptr[1];
+    sum += t;
+    if(sum < t) {
+      sum++;           /* carry */
+    }
+    dataptr += 2;
+  }
+  
+  if(dataptr == last_byte) {
+    t = (dataptr[0] << 8) + 0;
+    sum += t;
+    if(sum < t) {
+      sum++;           /* carry */
+    }
+  }
+
+  /* Return sum in host byte order. */
+  return sum;
+}
+/*---------------------------------------------------------------------------*/
+u16_t
+uip_chksum(u16_t *data, u16_t len)
+{
+  return htons(chksum(0, (u8_t *)data, len));
+}
+/*---------------------------------------------------------------------------*/
+#ifndef UIP_ARCH_IPCHKSUM
+u16_t
+uip_ipchksum(void)
+{
+  u16_t sum;
+
+  sum = chksum(0, &uip_buf[UIP_LLH_LEN], UIP_IPH_LEN);
+  DEBUG_PRINTF("uip_ipchksum: sum 0x%04x\n", sum);
+  return (sum == 0) ? 0xffff : htons(sum);
+}
+#endif
+/*---------------------------------------------------------------------------*/
+static u16_t
+upper_layer_chksum(u8_t proto)
+{
+  u16_t upper_layer_len;
+  u16_t sum;
+  
+#if UIP_CONF_IPV6
+  upper_layer_len = (((u16_t)(BUF->len[0]) << 8) + BUF->len[1]);
+#else /* UIP_CONF_IPV6 */
+  upper_layer_len = (((u16_t)(BUF->len[0]) << 8) + BUF->len[1]) - UIP_IPH_LEN;
+#endif /* UIP_CONF_IPV6 */
+  
+  /* First sum pseudoheader. */
+  
+  /* IP protocol and length fields. This addition cannot carry. */
+  sum = upper_layer_len + proto;
+  /* Sum IP source and destination addresses. */
+  sum = chksum(sum, (u8_t *)&BUF->srcipaddr[0], 2 * sizeof(uip_ipaddr_t));
+
+  /* Sum TCP header and data. */
+  sum = chksum(sum, &uip_buf[UIP_IPH_LEN + UIP_LLH_LEN],
+              upper_layer_len);
+    
+  return (sum == 0) ? 0xffff : htons(sum);
+}
+/*---------------------------------------------------------------------------*/
+#if UIP_CONF_IPV6
+u16_t
+uip_icmp6chksum(void)
+{
+  return upper_layer_chksum(UIP_PROTO_ICMP6);
+  
+}
+#endif /* UIP_CONF_IPV6 */
+/*---------------------------------------------------------------------------*/
+u16_t
+uip_tcpchksum(void)
+{
+  return upper_layer_chksum(UIP_PROTO_TCP);
+}
+/*---------------------------------------------------------------------------*/
+#if UIP_UDP_CHECKSUMS
+u16_t
+uip_udpchksum(void)
+{
+  return upper_layer_chksum(UIP_PROTO_UDP);
+}
+#endif /* UIP_UDP_CHECKSUMS */
+#endif /* UIP_ARCH_CHKSUM */
+/*---------------------------------------------------------------------------*/
+void
+uip_init(void)
+{
+  for(c = 0; c < UIP_LISTENPORTS; ++c) {
+    uip_listenports[c] = 0;
+  }
+  for(c = 0; c < UIP_CONNS; ++c) {
+    uip_conns[c].tcpstateflags = UIP_CLOSED;
+  }
+#if UIP_ACTIVE_OPEN
+  lastport = 1024;
+#endif /* UIP_ACTIVE_OPEN */
+
+#if UIP_UDP
+  for(c = 0; c < UIP_UDP_CONNS; ++c) {
+    uip_udp_conns[c].lport = 0;
+  }
+#endif /* UIP_UDP */
+  
+
+  /* IPv4 initialization. */
+#if UIP_FIXEDADDR == 0
+  /*  uip_hostaddr[0] = uip_hostaddr[1] = 0;*/
+#endif /* UIP_FIXEDADDR */
+
+}
+/*---------------------------------------------------------------------------*/
+#if UIP_ACTIVE_OPEN
+struct uip_conn *
+uip_connect(uip_ipaddr_t *ripaddr, u16_t rport)
+{
+  register struct uip_conn *conn, *cconn;
+  
+  /* Find an unused local port. */
+ again:
+  ++lastport;
+
+  if(lastport >= 32000) {
+    lastport = 4096;
+  }
+
+  /* Check if this port is already in use, and if so try to find
+     another one. */
+  for(c = 0; c < UIP_CONNS; ++c) {
+    conn = &uip_conns[c];
+    if(conn->tcpstateflags != UIP_CLOSED &&
+       conn->lport == htons(lastport)) {
+      goto again;
+    }
+  }
+
+  conn = 0;
+  for(c = 0; c < UIP_CONNS; ++c) {
+    cconn = &uip_conns[c];
+    if(cconn->tcpstateflags == UIP_CLOSED) {
+      conn = cconn;
+      break;
+    }
+    if(cconn->tcpstateflags == UIP_TIME_WAIT) {
+      if(conn == 0 ||
+        cconn->timer > conn->timer) {
+       conn = cconn;
+      }
+    }
+  }
+
+  if(conn == 0) {
+    return 0;
+  }
+  
+  conn->tcpstateflags = UIP_SYN_SENT;
+
+  conn->snd_nxt[0] = iss[0];
+  conn->snd_nxt[1] = iss[1];
+  conn->snd_nxt[2] = iss[2];
+  conn->snd_nxt[3] = iss[3];
+
+  conn->initialmss = conn->mss = UIP_TCP_MSS;
+  
+  conn->len = 1;   /* TCP length of the SYN is one. */
+  conn->nrtx = 0;
+  conn->timer = 1; /* Send the SYN next time around. */
+  conn->rto = UIP_RTO;
+  conn->sa = 0;
+  conn->sv = 16;   /* Initial value of the RTT variance. */
+  conn->lport = htons(lastport);
+  conn->rport = rport;
+  uip_ipaddr_copy(&conn->ripaddr, ripaddr);
+  
+  return conn;
+}
+#endif /* UIP_ACTIVE_OPEN */
+/*---------------------------------------------------------------------------*/
+#if UIP_UDP
+struct uip_udp_conn *
+uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport)
+{
+  register struct uip_udp_conn *conn;
+  
+  /* Find an unused local port. */
+ again:
+  ++lastport;
+
+  if(lastport >= 32000) {
+    lastport = 4096;
+  }
+  
+  for(c = 0; c < UIP_UDP_CONNS; ++c) {
+    if(uip_udp_conns[c].lport == htons(lastport)) {
+      goto again;
+    }
+  }
+
+
+  conn = 0;
+  for(c = 0; c < UIP_UDP_CONNS; ++c) {
+    if(uip_udp_conns[c].lport == 0) {
+      conn = &uip_udp_conns[c];
+      break;
+    }
+  }
+
+  if(conn == 0) {
+    return 0;
+  }
+  
+  conn->lport = HTONS(lastport);
+  conn->rport = rport;
+  if(ripaddr == NULL) {
+    memset(conn->ripaddr, 0, sizeof(uip_ipaddr_t));
+  } else {
+    uip_ipaddr_copy(&conn->ripaddr, ripaddr);
+  }
+  conn->ttl = UIP_TTL;
+  
+  return conn;
+}
+#endif /* UIP_UDP */
+/*---------------------------------------------------------------------------*/
+void
+uip_unlisten(u16_t port)
+{
+  for(c = 0; c < UIP_LISTENPORTS; ++c) {
+    if(uip_listenports[c] == port) {
+      uip_listenports[c] = 0;
+      return;
+    }
+  }
+}
+/*---------------------------------------------------------------------------*/
+void
+uip_listen(u16_t port)
+{
+  for(c = 0; c < UIP_LISTENPORTS; ++c) {
+    if(uip_listenports[c] == 0) {
+      uip_listenports[c] = port;
+      return;
+    }
+  }
+}
+/*---------------------------------------------------------------------------*/
+/* XXX: IP fragment reassembly: not well-tested. */
+
+#if UIP_REASSEMBLY && !UIP_CONF_IPV6
+#define UIP_REASS_BUFSIZE (UIP_BUFSIZE - UIP_LLH_LEN)
+static u8_t uip_reassbuf[UIP_REASS_BUFSIZE];
+static u8_t uip_reassbitmap[UIP_REASS_BUFSIZE / (8 * 8)];
+static const u8_t bitmap_bits[8] = {0xff, 0x7f, 0x3f, 0x1f,
+                                   0x0f, 0x07, 0x03, 0x01};
+static u16_t uip_reasslen;
+static u8_t uip_reassflags;
+#define UIP_REASS_FLAG_LASTFRAG 0x01
+static u8_t uip_reasstmr;
+
+#define IP_MF   0x20
+
+static u8_t
+uip_reass(void)
+{
+  u16_t offset, len;
+  u16_t i;
+
+  /* If ip_reasstmr is zero, no packet is present in the buffer, so we
+     write the IP header of the fragment into the reassembly
+     buffer. The timer is updated with the maximum age. */
+  if(uip_reasstmr == 0) {
+    memcpy(uip_reassbuf, &BUF->vhl, UIP_IPH_LEN);
+    uip_reasstmr = UIP_REASS_MAXAGE;
+    uip_reassflags = 0;
+    /* Clear the bitmap. */
+    memset(uip_reassbitmap, 0, sizeof(uip_reassbitmap));
+  }
+
+  /* Check if the incoming fragment matches the one currently present
+     in the reasembly buffer. If so, we proceed with copying the
+     fragment into the buffer. */
+  if(BUF->srcipaddr[0] == FBUF->srcipaddr[0] &&
+     BUF->srcipaddr[1] == FBUF->srcipaddr[1] &&
+     BUF->destipaddr[0] == FBUF->destipaddr[0] &&
+     BUF->destipaddr[1] == FBUF->destipaddr[1] &&
+     BUF->ipid[0] == FBUF->ipid[0] &&
+     BUF->ipid[1] == FBUF->ipid[1]) {
+
+    len = (BUF->len[0] << 8) + BUF->len[1] - (BUF->vhl & 0x0f) * 4;
+    offset = (((BUF->ipoffset[0] & 0x3f) << 8) + BUF->ipoffset[1]) * 8;
+
+    /* If the offset or the offset + fragment length overflows the
+       reassembly buffer, we discard the entire packet. */
+    if(offset > UIP_REASS_BUFSIZE ||
+       offset + len > UIP_REASS_BUFSIZE) {
+      uip_reasstmr = 0;
+      goto nullreturn;
+    }
+
+    /* Copy the fragment into the reassembly buffer, at the right
+       offset. */
+    memcpy(&uip_reassbuf[UIP_IPH_LEN + offset],
+          (char *)BUF + (int)((BUF->vhl & 0x0f) * 4),
+          len);
+      
+    /* Update the bitmap. */
+    if(offset / (8 * 8) == (offset + len) / (8 * 8)) {
+      /* If the two endpoints are in the same byte, we only update
+        that byte. */
+            
+      uip_reassbitmap[offset / (8 * 8)] |=
+            bitmap_bits[(offset / 8 ) & 7] &
+            ~bitmap_bits[((offset + len) / 8 ) & 7];
+    } else {
+      /* If the two endpoints are in different bytes, we update the
+        bytes in the endpoints and fill the stuff inbetween with
+        0xff. */
+      uip_reassbitmap[offset / (8 * 8)] |=
+       bitmap_bits[(offset / 8 ) & 7];
+      for(i = 1 + offset / (8 * 8); i < (offset + len) / (8 * 8); ++i) {
+       uip_reassbitmap[i] = 0xff;
+      }
+      uip_reassbitmap[(offset + len) / (8 * 8)] |=
+       ~bitmap_bits[((offset + len) / 8 ) & 7];
+    }
+    
+    /* If this fragment has the More Fragments flag set to zero, we
+       know that this is the last fragment, so we can calculate the
+       size of the entire packet. We also set the
+       IP_REASS_FLAG_LASTFRAG flag to indicate that we have received
+       the final fragment. */
+
+    if((BUF->ipoffset[0] & IP_MF) == 0) {
+      uip_reassflags |= UIP_REASS_FLAG_LASTFRAG;
+      uip_reasslen = offset + len;
+    }
+    
+    /* Finally, we check if we have a full packet in the buffer. We do
+       this by checking if we have the last fragment and if all bits
+       in the bitmap are set. */
+    if(uip_reassflags & UIP_REASS_FLAG_LASTFRAG) {
+      /* Check all bytes up to and including all but the last byte in
+        the bitmap. */
+      for(i = 0; i < uip_reasslen / (8 * 8) - 1; ++i) {
+       if(uip_reassbitmap[i] != 0xff) {
+         goto nullreturn;
+       }
+      }
+      /* Check the last byte in the bitmap. It should contain just the
+        right amount of bits. */
+      if(uip_reassbitmap[uip_reasslen / (8 * 8)] !=
+        (u8_t)~bitmap_bits[uip_reasslen / 8 & 7]) {
+       goto nullreturn;
+      }
+
+      /* If we have come this far, we have a full packet in the
+        buffer, so we allocate a pbuf and copy the packet into it. We
+        also reset the timer. */
+      uip_reasstmr = 0;
+      memcpy(BUF, FBUF, uip_reasslen);
+
+      /* Pretend to be a "normal" (i.e., not fragmented) IP packet
+        from now on. */
+      BUF->ipoffset[0] = BUF->ipoffset[1] = 0;
+      BUF->len[0] = uip_reasslen >> 8;
+      BUF->len[1] = uip_reasslen & 0xff;
+      BUF->ipchksum = 0;
+      BUF->ipchksum = ~(uip_ipchksum());
+
+      return uip_reasslen;
+    }
+  }
+
+ nullreturn:
+  return 0;
+}
+#endif /* UIP_REASSEMBLY */
+/*---------------------------------------------------------------------------*/
+static void
+uip_add_rcv_nxt(u16_t n)
+{
+  uip_add32(uip_conn->rcv_nxt, n);
+  uip_conn->rcv_nxt[0] = uip_acc32[0];
+  uip_conn->rcv_nxt[1] = uip_acc32[1];
+  uip_conn->rcv_nxt[2] = uip_acc32[2];
+  uip_conn->rcv_nxt[3] = uip_acc32[3];
+}
+/*---------------------------------------------------------------------------*/
+void
+uip_process(u8_t flag)
+{
+  register struct uip_conn *uip_connr = uip_conn;
+
+#if UIP_UDP
+  if(flag == UIP_UDP_SEND_CONN) {
+    goto udp_send;
+  }
+#endif /* UIP_UDP */
+  
+  uip_sappdata = uip_appdata = &uip_buf[UIP_IPTCPH_LEN + UIP_LLH_LEN];
+
+  /* Check if we were invoked because of a poll request for a
+     particular connection. */
+  if(flag == UIP_POLL_REQUEST) {
+    if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_ESTABLISHED &&
+       !uip_outstanding(uip_connr)) {
+       uip_flags = UIP_POLL;
+       UIP_APPCALL();
+       goto appsend;
+    }
+    goto drop;
+    
+    /* Check if we were invoked because of the perodic timer fireing. */
+  } else if(flag == UIP_TIMER) {
+#if UIP_REASSEMBLY
+    if(uip_reasstmr != 0) {
+      --uip_reasstmr;
+    }
+#endif /* UIP_REASSEMBLY */
+    /* Increase the initial sequence number. */
+    if(++iss[3] == 0) {
+      if(++iss[2] == 0) {
+       if(++iss[1] == 0) {
+         ++iss[0];
+       }
+      }
+    }
+
+    /* Reset the length variables. */
+    uip_len = 0;
+    uip_slen = 0;
+
+    /* Check if the connection is in a state in which we simply wait
+       for the connection to time out. If so, we increase the
+       connection's timer and remove the connection if it times
+       out. */
+    if(uip_connr->tcpstateflags == UIP_TIME_WAIT ||
+       uip_connr->tcpstateflags == UIP_FIN_WAIT_2) {
+      ++(uip_connr->timer);
+      if(uip_connr->timer == UIP_TIME_WAIT_TIMEOUT) {
+       uip_connr->tcpstateflags = UIP_CLOSED;
+      }
+    } else if(uip_connr->tcpstateflags != UIP_CLOSED) {
+      /* If the connection has outstanding data, we increase the
+        connection's timer and see if it has reached the RTO value
+        in which case we retransmit. */
+      if(uip_outstanding(uip_connr)) {
+       if(uip_connr->timer-- == 0) {
+         if(uip_connr->nrtx == UIP_MAXRTX ||
+            ((uip_connr->tcpstateflags == UIP_SYN_SENT ||
+              uip_connr->tcpstateflags == UIP_SYN_RCVD) &&
+             uip_connr->nrtx == UIP_MAXSYNRTX)) {
+           uip_connr->tcpstateflags = UIP_CLOSED;
+
+           /* We call UIP_APPCALL() with uip_flags set to
+              UIP_TIMEDOUT to inform the application that the
+              connection has timed out. */
+           uip_flags = UIP_TIMEDOUT;
+           UIP_APPCALL();
+
+           /* We also send a reset packet to the remote host. */
+           BUF->flags = TCP_RST | TCP_ACK;
+           goto tcp_send_nodata;
+         }
+
+         /* Exponential backoff. */
+         uip_connr->timer = UIP_RTO << (uip_connr->nrtx > 4?
+                                        4:
+                                        uip_connr->nrtx);
+         ++(uip_connr->nrtx);
+         
+         /* Ok, so we need to retransmit. We do this differently
+            depending on which state we are in. In ESTABLISHED, we
+            call upon the application so that it may prepare the
+            data for the retransmit. In SYN_RCVD, we resend the
+            SYNACK that we sent earlier and in LAST_ACK we have to
+            retransmit our FINACK. */
+         UIP_STAT(++uip_stat.tcp.rexmit);
+         switch(uip_connr->tcpstateflags & UIP_TS_MASK) {
+         case UIP_SYN_RCVD:
+           /* In the SYN_RCVD state, we should retransmit our
+               SYNACK. */
+           goto tcp_send_synack;
+           
+#if UIP_ACTIVE_OPEN
+         case UIP_SYN_SENT:
+           /* In the SYN_SENT state, we retransmit out SYN. */
+           BUF->flags = 0;
+           goto tcp_send_syn;
+#endif /* UIP_ACTIVE_OPEN */
+           
+         case UIP_ESTABLISHED:
+           /* In the ESTABLISHED state, we call upon the application
+               to do the actual retransmit after which we jump into
+               the code for sending out the packet (the apprexmit
+               label). */
+           uip_flags = UIP_REXMIT;
+           UIP_APPCALL();
+           goto apprexmit;
+           
+         case UIP_FIN_WAIT_1:
+         case UIP_CLOSING:
+         case UIP_LAST_ACK:
+           /* In all these states we should retransmit a FINACK. */
+           goto tcp_send_finack;
+           
+         }
+       }
+      } else if((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_ESTABLISHED) {
+       /* If there was no need for a retransmission, we poll the
+           application for new data. */
+       uip_flags = UIP_POLL;
+       UIP_APPCALL();
+       goto appsend;
+      }
+    }
+    goto drop;
+  }
+#if UIP_UDP
+  if(flag == UIP_UDP_TIMER) {
+    if(uip_udp_conn->lport != 0) {
+      uip_conn = NULL;
+      uip_sappdata = uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
+      uip_len = uip_slen = 0;
+      uip_flags = UIP_POLL;
+      UIP_UDP_APPCALL();
+      goto udp_send;
+    } else {
+      goto drop;
+    }
+  }
+#endif
+
+  /* This is where the input processing starts. */
+  UIP_STAT(++uip_stat.ip.recv);
+
+  /* Start of IP input header processing code. */
+  
+#if UIP_CONF_IPV6
+  /* Check validity of the IP header. */
+  if((BUF->vtc & 0xf0) != 0x60)  { /* IP version and header length. */
+    UIP_STAT(++uip_stat.ip.drop);
+    UIP_STAT(++uip_stat.ip.vhlerr);
+    UIP_LOG("ipv6: invalid version.");
+    goto drop;
+  }
+#else /* UIP_CONF_IPV6 */
+  /* Check validity of the IP header. */
+  if(BUF->vhl != 0x45)  { /* IP version and header length. */
+    UIP_STAT(++uip_stat.ip.drop);
+    UIP_STAT(++uip_stat.ip.vhlerr);
+    UIP_LOG("ip: invalid version or header length.");
+    goto drop;
+  }
+#endif /* UIP_CONF_IPV6 */
+  
+  /* Check the size of the packet. If the size reported to us in
+     uip_len is smaller the size reported in the IP header, we assume
+     that the packet has been corrupted in transit. If the size of
+     uip_len is larger than the size reported in the IP packet header,
+     the packet has been padded and we set uip_len to the correct
+     value.. */
+
+  if((BUF->len[0] << 8) + BUF->len[1] <= uip_len) {
+    uip_len = (BUF->len[0] << 8) + BUF->len[1];
+#if UIP_CONF_IPV6
+    uip_len += 40; /* The length reported in the IPv6 header is the
+                     length of the payload that follows the
+                     header. However, uIP uses the uip_len variable
+                     for holding the size of the entire packet,
+                     including the IP header. For IPv4 this is not a
+                     problem as the length field in the IPv4 header
+                     contains the length of the entire packet. But
+                     for IPv6 we need to add the size of the IPv6
+                     header (40 bytes). */
+#endif /* UIP_CONF_IPV6 */
+  } else {
+    UIP_LOG("ip: packet shorter than reported in IP header.");
+    goto drop;
+  }
+
+#if !UIP_CONF_IPV6
+  /* Check the fragment flag. */
+  if((BUF->ipoffset[0] & 0x3f) != 0 ||
+     BUF->ipoffset[1] != 0) {
+#if UIP_REASSEMBLY
+    uip_len = uip_reass();
+    if(uip_len == 0) {
+      goto drop;
+    }
+#else /* UIP_REASSEMBLY */
+    UIP_STAT(++uip_stat.ip.drop);
+    UIP_STAT(++uip_stat.ip.fragerr);
+    UIP_LOG("ip: fragment dropped.");
+    goto drop;
+#endif /* UIP_REASSEMBLY */
+  }
+#endif /* UIP_CONF_IPV6 */
+
+  if(uip_ipaddr_cmp(uip_hostaddr, all_zeroes_addr)) {
+    /* If we are configured to use ping IP address configuration and
+       hasn't been assigned an IP address yet, we accept all ICMP
+       packets. */
+#if UIP_PINGADDRCONF && !UIP_CONF_IPV6
+    if(BUF->proto == UIP_PROTO_ICMP) {
+      UIP_LOG("ip: possible ping config packet received.");
+      goto icmp_input;
+    } else {
+      UIP_LOG("ip: packet dropped since no address assigned.");
+      goto drop;
+    }
+#endif /* UIP_PINGADDRCONF */
+
+  } else {
+    /* If IP broadcast support is configured, we check for a broadcast
+       UDP packet, which may be destined to us. */
+#if UIP_BROADCAST
+    DEBUG_PRINTF("UDP IP checksum 0x%04x\n", uip_ipchksum());
+    if(BUF->proto == UIP_PROTO_UDP &&
+       uip_ipaddr_cmp(BUF->destipaddr, all_ones_addr)
+       /*&&
+        uip_ipchksum() == 0xffff*/) {
+      goto udp_input;
+    }
+#endif /* UIP_BROADCAST */
+    
+    /* Check if the packet is destined for our IP address. */
+#if !UIP_CONF_IPV6
+    if(!uip_ipaddr_cmp(BUF->destipaddr, uip_hostaddr)) {
+      UIP_STAT(++uip_stat.ip.drop);
+      goto drop;
+    }
+#else /* UIP_CONF_IPV6 */
+    /* For IPv6, packet reception is a little trickier as we need to
+       make sure that we listen to certain multicast addresses (all
+       hosts multicast address, and the solicited-node multicast
+       address) as well. However, we will cheat here and accept all
+       multicast packets that are sent to the ff02::/16 addresses. */
+    if(!uip_ipaddr_cmp(BUF->destipaddr, uip_hostaddr) &&
+       BUF->destipaddr[0] != HTONS(0xff02)) {
+      UIP_STAT(++uip_stat.ip.drop);
+      goto drop;
+    }
+#endif /* UIP_CONF_IPV6 */
+  }
+
+#if !UIP_CONF_IPV6
+  if(uip_ipchksum() != 0xffff) { /* Compute and check the IP header
+                                   checksum. */
+    UIP_STAT(++uip_stat.ip.drop);
+    UIP_STAT(++uip_stat.ip.chkerr);
+    UIP_LOG("ip: bad checksum.");
+    goto drop;
+  }
+#endif /* UIP_CONF_IPV6 */
+
+  if(BUF->proto == UIP_PROTO_TCP) { /* Check for TCP packet. If so,
+                                      proceed with TCP input
+                                      processing. */
+    goto tcp_input;
+  }
+
+#if UIP_UDP
+  if(BUF->proto == UIP_PROTO_UDP) {
+    goto udp_input;
+  }
+#endif /* UIP_UDP */
+
+#if !UIP_CONF_IPV6
+  /* ICMPv4 processing code follows. */
+  if(BUF->proto != UIP_PROTO_ICMP) { /* We only allow ICMP packets from
+                                       here. */
+    UIP_STAT(++uip_stat.ip.drop);
+    UIP_STAT(++uip_stat.ip.protoerr);
+    UIP_LOG("ip: neither tcp nor icmp.");
+    goto drop;
+  }
+
+#if UIP_PINGADDRCONF
+ icmp_input:
+#endif /* UIP_PINGADDRCONF */
+  UIP_STAT(++uip_stat.icmp.recv);
+
+  /* ICMP echo (i.e., ping) processing. This is simple, we only change
+     the ICMP type from ECHO to ECHO_REPLY and adjust the ICMP
+     checksum before we return the packet. */
+  if(ICMPBUF->type != ICMP_ECHO) {
+    UIP_STAT(++uip_stat.icmp.drop);
+    UIP_STAT(++uip_stat.icmp.typeerr);
+    UIP_LOG("icmp: not icmp echo.");
+    goto drop;
+  }
+
+  /* If we are configured to use ping IP address assignment, we use
+     the destination IP address of this ping packet and assign it to
+     ourself. */
+#if UIP_PINGADDRCONF
+  if((uip_hostaddr[0] | uip_hostaddr[1]) == 0) {
+    uip_hostaddr[0] = BUF->destipaddr[0];
+    uip_hostaddr[1] = BUF->destipaddr[1];
+  }
+#endif /* UIP_PINGADDRCONF */
+
+  ICMPBUF->type = ICMP_ECHO_REPLY;
+
+  if(ICMPBUF->icmpchksum >= HTONS(0xffff - (ICMP_ECHO << 8))) {
+    ICMPBUF->icmpchksum += HTONS(ICMP_ECHO << 8) + 1;
+  } else {
+    ICMPBUF->icmpchksum += HTONS(ICMP_ECHO << 8);
+  }
+
+  /* Swap IP addresses. */
+  uip_ipaddr_copy(BUF->destipaddr, BUF->srcipaddr);
+  uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
+
+  UIP_STAT(++uip_stat.icmp.sent);
+  goto send;
+
+  /* End of IPv4 input header processing code. */
+#else /* !UIP_CONF_IPV6 */
+
+  /* This is IPv6 ICMPv6 processing code. */
+  DEBUG_PRINTF("icmp6_input: length %d\n", uip_len);
+
+  if(BUF->proto != UIP_PROTO_ICMP6) { /* We only allow ICMPv6 packets from
+                                        here. */
+    UIP_STAT(++uip_stat.ip.drop);
+    UIP_STAT(++uip_stat.ip.protoerr);
+    UIP_LOG("ip: neither tcp nor icmp6.");
+    goto drop;
+  }
+
+  UIP_STAT(++uip_stat.icmp.recv);
+
+  /* If we get a neighbor solicitation for our address we should send
+     a neighbor advertisement message back. */
+  if(ICMPBUF->type == ICMP6_NEIGHBOR_SOLICITATION) {
+    if(uip_ipaddr_cmp(ICMPBUF->icmp6data, uip_hostaddr)) {
+
+      if(ICMPBUF->options[0] == ICMP6_OPTION_SOURCE_LINK_ADDRESS) {
+       /* Save the sender's address in our neighbor list. */
+       uip_neighbor_add(ICMPBUF->srcipaddr, &(ICMPBUF->options[2]));
+      }
+      
+      /* We should now send a neighbor advertisement back to where the
+        neighbor solicication came from. */
+      ICMPBUF->type = ICMP6_NEIGHBOR_ADVERTISEMENT;
+      ICMPBUF->flags = ICMP6_FLAG_S; /* Solicited flag. */
+      
+      ICMPBUF->reserved1 = ICMPBUF->reserved2 = ICMPBUF->reserved3 = 0;
+      
+      uip_ipaddr_copy(ICMPBUF->destipaddr, ICMPBUF->srcipaddr);
+      uip_ipaddr_copy(ICMPBUF->srcipaddr, uip_hostaddr);
+      ICMPBUF->options[0] = ICMP6_OPTION_TARGET_LINK_ADDRESS;
+      ICMPBUF->options[1] = 1;  /* Options length, 1 = 8 bytes. */
+      memcpy(&(ICMPBUF->options[2]), &uip_ethaddr, sizeof(uip_ethaddr));
+      ICMPBUF->icmpchksum = 0;
+      ICMPBUF->icmpchksum = ~uip_icmp6chksum();
+      goto send;
+      
+    }
+    goto drop;
+  } else if(ICMPBUF->type == ICMP6_ECHO) {
+    /* ICMP echo (i.e., ping) processing. This is simple, we only
+       change the ICMP type from ECHO to ECHO_REPLY and update the
+       ICMP checksum before we return the packet. */
+
+    ICMPBUF->type = ICMP6_ECHO_REPLY;
+    
+    uip_ipaddr_copy(BUF->destipaddr, BUF->srcipaddr);
+    uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
+    ICMPBUF->icmpchksum = 0;
+    ICMPBUF->icmpchksum = ~uip_icmp6chksum();
+    
+    UIP_STAT(++uip_stat.icmp.sent);
+    goto send;
+  } else {
+    DEBUG_PRINTF("Unknown icmp6 message type %d\n", ICMPBUF->type);
+    UIP_STAT(++uip_stat.icmp.drop);
+    UIP_STAT(++uip_stat.icmp.typeerr);
+    UIP_LOG("icmp: unknown ICMP message.");
+    goto drop;
+  }
+
+  /* End of IPv6 ICMP processing. */
+  
+#endif /* !UIP_CONF_IPV6 */
+
+#if UIP_UDP
+  /* UDP input processing. */
+ udp_input:
+  /* UDP processing is really just a hack. We don't do anything to the
+     UDP/IP headers, but let the UDP application do all the hard
+     work. If the application sets uip_slen, it has a packet to
+     send. */
+#if UIP_UDP_CHECKSUMS
+  uip_len = uip_len - UIP_IPUDPH_LEN;
+  uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
+  if(UDPBUF->udpchksum != 0 && uip_udpchksum() != 0xffff) {
+    UIP_STAT(++uip_stat.udp.drop);
+    UIP_STAT(++uip_stat.udp.chkerr);
+    UIP_LOG("udp: bad checksum.");
+    goto drop;
+  }
+#else /* UIP_UDP_CHECKSUMS */
+  uip_len = uip_len - UIP_IPUDPH_LEN;
+#endif /* UIP_UDP_CHECKSUMS */
+
+  /* Demultiplex this UDP packet between the UDP "connections". */
+  for(uip_udp_conn = &uip_udp_conns[0];
+      uip_udp_conn < &uip_udp_conns[UIP_UDP_CONNS];
+      ++uip_udp_conn) {
+    /* If the local UDP port is non-zero, the connection is considered
+       to be used. If so, the local port number is checked against the
+       destination port number in the received packet. If the two port
+       numbers match, the remote port number is checked if the
+       connection is bound to a remote port. Finally, if the
+       connection is bound to a remote IP address, the source IP
+       address of the packet is checked. */
+    if(uip_udp_conn->lport != 0 &&
+       UDPBUF->destport == uip_udp_conn->lport &&
+       (uip_udp_conn->rport == 0 ||
+        UDPBUF->srcport == uip_udp_conn->rport) &&
+       (uip_ipaddr_cmp(uip_udp_conn->ripaddr, all_zeroes_addr) ||
+       uip_ipaddr_cmp(uip_udp_conn->ripaddr, all_ones_addr) ||
+       uip_ipaddr_cmp(BUF->srcipaddr, uip_udp_conn->ripaddr))) {
+      goto udp_found;
+    }
+  }
+  UIP_LOG("udp: no matching connection found");
+  goto drop;
+  
+ udp_found:
+  uip_conn = NULL;
+  uip_flags = UIP_NEWDATA;
+  uip_sappdata = uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
+  uip_slen = 0;
+  UIP_UDP_APPCALL();
+ udp_send:
+  if(uip_slen == 0) {
+    goto drop;
+  }
+  uip_len = uip_slen + UIP_IPUDPH_LEN;
+
+#if UIP_CONF_IPV6
+  /* For IPv6, the IP length field does not include the IPv6 IP header
+     length. */
+  BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
+  BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
+#else /* UIP_CONF_IPV6 */
+  BUF->len[0] = (uip_len >> 8);
+  BUF->len[1] = (uip_len & 0xff);
+#endif /* UIP_CONF_IPV6 */
+
+  BUF->ttl = uip_udp_conn->ttl;
+  BUF->proto = UIP_PROTO_UDP;
+
+  UDPBUF->udplen = HTONS(uip_slen + UIP_UDPH_LEN);
+  UDPBUF->udpchksum = 0;
+
+  BUF->srcport  = uip_udp_conn->lport;
+  BUF->destport = uip_udp_conn->rport;
+
+  uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
+  uip_ipaddr_copy(BUF->destipaddr, uip_udp_conn->ripaddr);
+   
+  uip_appdata = &uip_buf[UIP_LLH_LEN + UIP_IPTCPH_LEN];
+
+#if UIP_UDP_CHECKSUMS
+  /* Calculate UDP checksum. */
+  UDPBUF->udpchksum = ~(uip_udpchksum());
+  if(UDPBUF->udpchksum == 0) {
+    UDPBUF->udpchksum = 0xffff;
+  }
+#endif /* UIP_UDP_CHECKSUMS */
+  
+  goto ip_send_nolen;
+#endif /* UIP_UDP */
+  
+  /* TCP input processing. */
+ tcp_input:
+  UIP_STAT(++uip_stat.tcp.recv);
+
+  /* Start of TCP input header processing code. */
+  
+  if(uip_tcpchksum() != 0xffff) {   /* Compute and check the TCP
+                                      checksum. */
+    UIP_STAT(++uip_stat.tcp.drop);
+    UIP_STAT(++uip_stat.tcp.chkerr);
+    UIP_LOG("tcp: bad checksum.");
+    goto drop;
+  }
+  
+  
+  /* Demultiplex this segment. */
+  /* First check any active connections. */
+  for(uip_connr = &uip_conns[0]; uip_connr <= &uip_conns[UIP_CONNS - 1];
+      ++uip_connr) {
+    if(uip_connr->tcpstateflags != UIP_CLOSED &&
+       BUF->destport == uip_connr->lport &&
+       BUF->srcport == uip_connr->rport &&
+       uip_ipaddr_cmp(BUF->srcipaddr, uip_connr->ripaddr)) {
+      goto found;
+    }
+  }
+
+  /* If we didn't find and active connection that expected the packet,
+     either this packet is an old duplicate, or this is a SYN packet
+     destined for a connection in LISTEN. If the SYN flag isn't set,
+     it is an old packet and we send a RST. */
+  if((BUF->flags & TCP_CTL) != TCP_SYN) {
+    goto reset;
+  }
+  
+  tmp16 = BUF->destport;
+  /* Next, check listening connections. */
+  for(c = 0; c < UIP_LISTENPORTS; ++c) {
+    if(tmp16 == uip_listenports[c])
+      goto found_listen;
+  }
+  
+  /* No matching connection found, so we send a RST packet. */
+  UIP_STAT(++uip_stat.tcp.synrst);
+ reset:
+
+  /* We do not send resets in response to resets. */
+  if(BUF->flags & TCP_RST) {
+    goto drop;
+  }
+
+  UIP_STAT(++uip_stat.tcp.rst);
+  
+  BUF->flags = TCP_RST | TCP_ACK;
+  uip_len = UIP_IPTCPH_LEN;
+  BUF->tcpoffset = 5 << 4;
+
+  /* Flip the seqno and ackno fields in the TCP header. */
+  c = BUF->seqno[3];
+  BUF->seqno[3] = BUF->ackno[3];
+  BUF->ackno[3] = c;
+  
+  c = BUF->seqno[2];
+  BUF->seqno[2] = BUF->ackno[2];
+  BUF->ackno[2] = c;
+  
+  c = BUF->seqno[1];
+  BUF->seqno[1] = BUF->ackno[1];
+  BUF->ackno[1] = c;
+  
+  c = BUF->seqno[0];
+  BUF->seqno[0] = BUF->ackno[0];
+  BUF->ackno[0] = c;
+
+  /* We also have to increase the sequence number we are
+     acknowledging. If the least significant byte overflowed, we need
+     to propagate the carry to the other bytes as well. */
+  if(++BUF->ackno[3] == 0) {
+    if(++BUF->ackno[2] == 0) {
+      if(++BUF->ackno[1] == 0) {
+       ++BUF->ackno[0];
+      }
+    }
+  }
+ 
+  /* Swap port numbers. */
+  tmp16 = BUF->srcport;
+  BUF->srcport = BUF->destport;
+  BUF->destport = tmp16;
+  
+  /* Swap IP addresses. */
+  uip_ipaddr_copy(BUF->destipaddr, BUF->srcipaddr);
+  uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
+  
+  /* And send out the RST packet! */
+  goto tcp_send_noconn;
+
+  /* This label will be jumped to if we matched the incoming packet
+     with a connection in LISTEN. In that case, we should create a new
+     connection and send a SYNACK in return. */
+ found_listen:
+  /* First we check if there are any connections avaliable. Unused
+     connections are kept in the same table as used connections, but
+     unused ones have the tcpstate set to CLOSED. Also, connections in
+     TIME_WAIT are kept track of and we'll use the oldest one if no
+     CLOSED connections are found. Thanks to Eddie C. Dost for a very
+     nice algorithm for the TIME_WAIT search. */
+  uip_connr = 0;
+  for(c = 0; c < UIP_CONNS; ++c) {
+    if(uip_conns[c].tcpstateflags == UIP_CLOSED) {
+      uip_connr = &uip_conns[c];
+      break;
+    }
+    if(uip_conns[c].tcpstateflags == UIP_TIME_WAIT) {
+      if(uip_connr == 0 ||
+        uip_conns[c].timer > uip_connr->timer) {
+       uip_connr = &uip_conns[c];
+      }
+    }
+  }
+
+  if(uip_connr == 0) {
+    /* All connections are used already, we drop packet and hope that
+       the remote end will retransmit the packet at a time when we
+       have more spare connections. */
+    UIP_STAT(++uip_stat.tcp.syndrop);
+    UIP_LOG("tcp: found no unused connections.");
+    goto drop;
+  }
+  uip_conn = uip_connr;
+  
+  /* Fill in the necessary fields for the new connection. */
+  uip_connr->rto = uip_connr->timer = UIP_RTO;
+  uip_connr->sa = 0;
+  uip_connr->sv = 4;
+  uip_connr->nrtx = 0;
+  uip_connr->lport = BUF->destport;
+  uip_connr->rport = BUF->srcport;
+  uip_ipaddr_copy(uip_connr->ripaddr, BUF->srcipaddr);
+  uip_connr->tcpstateflags = UIP_SYN_RCVD;
+
+  uip_connr->snd_nxt[0] = iss[0];
+  uip_connr->snd_nxt[1] = iss[1];
+  uip_connr->snd_nxt[2] = iss[2];
+  uip_connr->snd_nxt[3] = iss[3];
+  uip_connr->len = 1;
+
+  /* rcv_nxt should be the seqno from the incoming packet + 1. */
+  uip_connr->rcv_nxt[3] = BUF->seqno[3];
+  uip_connr->rcv_nxt[2] = BUF->seqno[2];
+  uip_connr->rcv_nxt[1] = BUF->seqno[1];
+  uip_connr->rcv_nxt[0] = BUF->seqno[0];
+  uip_add_rcv_nxt(1);
+
+  /* Parse the TCP MSS option, if present. */
+  if((BUF->tcpoffset & 0xf0) > 0x50) {
+    for(c = 0; c < ((BUF->tcpoffset >> 4) - 5) << 2 ;) {
+      opt = uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + c];
+      if(opt == TCP_OPT_END) {
+       /* End of options. */
+       break;
+      } else if(opt == TCP_OPT_NOOP) {
+       ++c;
+       /* NOP option. */
+      } else if(opt == TCP_OPT_MSS &&
+               uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == TCP_OPT_MSS_LEN) {
+       /* An MSS option with the right option length. */
+       tmp16 = ((u16_t)uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 2 + c] << 8) |
+         (u16_t)uip_buf[UIP_IPTCPH_LEN + UIP_LLH_LEN + 3 + c];
+       uip_connr->initialmss = uip_connr->mss =
+         tmp16 > UIP_TCP_MSS? UIP_TCP_MSS: tmp16;
+       
+       /* And we are done processing options. */
+       break;
+      } else {
+       /* All other options have a length field, so that we easily
+          can skip past them. */
+       if(uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == 0) {
+         /* If the length field is zero, the options are malformed
+            and we don't process them further. */
+         break;
+       }
+       c += uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c];
+      }
+    }
+  }
+  
+  /* Our response will be a SYNACK. */
+#if UIP_ACTIVE_OPEN
+ tcp_send_synack:
+  BUF->flags = TCP_ACK;
+  
+ tcp_send_syn:
+  BUF->flags |= TCP_SYN;
+#else /* UIP_ACTIVE_OPEN */
+ tcp_send_synack:
+  BUF->flags = TCP_SYN | TCP_ACK;
+#endif /* UIP_ACTIVE_OPEN */
+  
+  /* We send out the TCP Maximum Segment Size option with our
+     SYNACK. */
+  BUF->optdata[0] = TCP_OPT_MSS;
+  BUF->optdata[1] = TCP_OPT_MSS_LEN;
+  BUF->optdata[2] = (UIP_TCP_MSS) / 256;
+  BUF->optdata[3] = (UIP_TCP_MSS) & 255;
+  uip_len = UIP_IPTCPH_LEN + TCP_OPT_MSS_LEN;
+  BUF->tcpoffset = ((UIP_TCPH_LEN + TCP_OPT_MSS_LEN) / 4) << 4;
+  goto tcp_send;
+
+  /* This label will be jumped to if we found an active connection. */
+ found:
+  uip_conn = uip_connr;
+  uip_flags = 0;
+  /* We do a very naive form of TCP reset processing; we just accept
+     any RST and kill our connection. We should in fact check if the
+     sequence number of this reset is wihtin our advertised window
+     before we accept the reset. */
+  if(BUF->flags & TCP_RST) {
+    uip_connr->tcpstateflags = UIP_CLOSED;
+    UIP_LOG("tcp: got reset, aborting connection.");
+    uip_flags = UIP_ABORT;
+    UIP_APPCALL();
+    goto drop;
+  }
+  /* Calculated the length of the data, if the application has sent
+     any data to us. */
+  c = (BUF->tcpoffset >> 4) << 2;
+  /* uip_len will contain the length of the actual TCP data. This is
+     calculated by subtracing the length of the TCP header (in
+     c) and the length of the IP header (20 bytes). */
+  uip_len = uip_len - c - UIP_IPH_LEN;
+
+  /* First, check if the sequence number of the incoming packet is
+     what we're expecting next. If not, we send out an ACK with the
+     correct numbers in. */
+  if(!(((uip_connr->tcpstateflags & UIP_TS_MASK) == UIP_SYN_SENT) &&
+       ((BUF->flags & TCP_CTL) == (TCP_SYN | TCP_ACK)))) {
+    if((uip_len > 0 || ((BUF->flags & (TCP_SYN | TCP_FIN)) != 0)) &&
+       (BUF->seqno[0] != uip_connr->rcv_nxt[0] ||
+       BUF->seqno[1] != uip_connr->rcv_nxt[1] ||
+       BUF->seqno[2] != uip_connr->rcv_nxt[2] ||
+       BUF->seqno[3] != uip_connr->rcv_nxt[3])) {
+      goto tcp_send_ack;
+    }
+  }
+
+  /* Next, check if the incoming segment acknowledges any outstanding
+     data. If so, we update the sequence number, reset the length of
+     the outstanding data, calculate RTT estimations, and reset the
+     retransmission timer. */
+  if((BUF->flags & TCP_ACK) && uip_outstanding(uip_connr)) {
+    uip_add32(uip_connr->snd_nxt, uip_connr->len);
+
+    if(BUF->ackno[0] == uip_acc32[0] &&
+       BUF->ackno[1] == uip_acc32[1] &&
+       BUF->ackno[2] == uip_acc32[2] &&
+       BUF->ackno[3] == uip_acc32[3]) {
+      /* Update sequence number. */
+      uip_connr->snd_nxt[0] = uip_acc32[0];
+      uip_connr->snd_nxt[1] = uip_acc32[1];
+      uip_connr->snd_nxt[2] = uip_acc32[2];
+      uip_connr->snd_nxt[3] = uip_acc32[3];
+       
+
+      /* Do RTT estimation, unless we have done retransmissions. */
+      if(uip_connr->nrtx == 0) {
+       signed char m;
+       m = uip_connr->rto - uip_connr->timer;
+       /* This is taken directly from VJs original code in his paper */
+       m = m - (uip_connr->sa >> 3);
+       uip_connr->sa += m;
+       if(m < 0) {
+         m = -m;
+       }
+       m = m - (uip_connr->sv >> 2);
+       uip_connr->sv += m;
+       uip_connr->rto = (uip_connr->sa >> 3) + uip_connr->sv;
+
+      }
+      /* Set the acknowledged flag. */
+      uip_flags = UIP_ACKDATA;
+      /* Reset the retransmission timer. */
+      uip_connr->timer = uip_connr->rto;
+
+      /* Reset length of outstanding data. */
+      uip_connr->len = 0;
+    }
+    
+  }
+
+  /* Do different things depending on in what state the connection is. */
+  switch(uip_connr->tcpstateflags & UIP_TS_MASK) {
+    /* CLOSED and LISTEN are not handled here. CLOSE_WAIT is not
+       implemented, since we force the application to close when the
+       peer sends a FIN (hence the application goes directly from
+       ESTABLISHED to LAST_ACK). */
+  case UIP_SYN_RCVD:
+    /* In SYN_RCVD we have sent out a SYNACK in response to a SYN, and
+       we are waiting for an ACK that acknowledges the data we sent
+       out the last time. Therefore, we want to have the UIP_ACKDATA
+       flag set. If so, we enter the ESTABLISHED state. */
+    if(uip_flags & UIP_ACKDATA) {
+      uip_connr->tcpstateflags = UIP_ESTABLISHED;
+      uip_flags = UIP_CONNECTED;
+      uip_connr->len = 0;
+      if(uip_len > 0) {
+        uip_flags |= UIP_NEWDATA;
+        uip_add_rcv_nxt(uip_len);
+      }
+      uip_slen = 0;
+      UIP_APPCALL();
+      goto appsend;
+    }
+    goto drop;
+#if UIP_ACTIVE_OPEN
+  case UIP_SYN_SENT:
+    /* In SYN_SENT, we wait for a SYNACK that is sent in response to
+       our SYN. The rcv_nxt is set to sequence number in the SYNACK
+       plus one, and we send an ACK. We move into the ESTABLISHED
+       state. */
+    if((uip_flags & UIP_ACKDATA) &&
+       (BUF->flags & TCP_CTL) == (TCP_SYN | TCP_ACK)) {
+
+      /* Parse the TCP MSS option, if present. */
+      if((BUF->tcpoffset & 0xf0) > 0x50) {
+       for(c = 0; c < ((BUF->tcpoffset >> 4) - 5) << 2 ;) {
+         opt = uip_buf[UIP_IPTCPH_LEN + UIP_LLH_LEN + c];
+         if(opt == TCP_OPT_END) {
+           /* End of options. */
+           break;
+         } else if(opt == TCP_OPT_NOOP) {
+           ++c;
+           /* NOP option. */
+         } else if(opt == TCP_OPT_MSS &&
+                   uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == TCP_OPT_MSS_LEN) {
+           /* An MSS option with the right option length. */
+           tmp16 = (uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 2 + c] << 8) |
+             uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 3 + c];
+           uip_connr->initialmss =
+             uip_connr->mss = tmp16 > UIP_TCP_MSS? UIP_TCP_MSS: tmp16;
+
+           /* And we are done processing options. */
+           break;
+         } else {
+           /* All other options have a length field, so that we easily
+              can skip past them. */
+           if(uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c] == 0) {
+             /* If the length field is zero, the options are malformed
+                and we don't process them further. */
+             break;
+           }
+           c += uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN + 1 + c];
+         }
+       }
+      }
+      uip_connr->tcpstateflags = UIP_ESTABLISHED;
+      uip_connr->rcv_nxt[0] = BUF->seqno[0];
+      uip_connr->rcv_nxt[1] = BUF->seqno[1];
+      uip_connr->rcv_nxt[2] = BUF->seqno[2];
+      uip_connr->rcv_nxt[3] = BUF->seqno[3];
+      uip_add_rcv_nxt(1);
+      uip_flags = UIP_CONNECTED | UIP_NEWDATA;
+      uip_connr->len = 0;
+      uip_len = 0;
+      uip_slen = 0;
+      UIP_APPCALL();
+      goto appsend;
+    }
+    /* Inform the application that the connection failed */
+    uip_flags = UIP_ABORT;
+    UIP_APPCALL();
+    /* The connection is closed after we send the RST */
+    uip_conn->tcpstateflags = UIP_CLOSED;
+    goto reset;
+#endif /* UIP_ACTIVE_OPEN */
+    
+  case UIP_ESTABLISHED:
+    /* In the ESTABLISHED state, we call upon the application to feed
+    data into the uip_buf. If the UIP_ACKDATA flag is set, the
+    application should put new data into the buffer, otherwise we are
+    retransmitting an old segment, and the application should put that
+    data into the buffer.
+
+    If the incoming packet is a FIN, we should close the connection on
+    this side as well, and we send out a FIN and enter the LAST_ACK
+    state. We require that there is no outstanding data; otherwise the
+    sequence numbers will be screwed up. */
+
+    if(BUF->flags & TCP_FIN && !(uip_connr->tcpstateflags & UIP_STOPPED)) {
+      if(uip_outstanding(uip_connr)) {
+       goto drop;
+      }
+      uip_add_rcv_nxt(1 + uip_len);
+      uip_flags |= UIP_CLOSE;
+      if(uip_len > 0) {
+       uip_flags |= UIP_NEWDATA;
+      }
+      UIP_APPCALL();
+      uip_connr->len = 1;
+      uip_connr->tcpstateflags = UIP_LAST_ACK;
+      uip_connr->nrtx = 0;
+    tcp_send_finack:
+      BUF->flags = TCP_FIN | TCP_ACK;
+      goto tcp_send_nodata;
+    }
+
+    /* Check the URG flag. If this is set, the segment carries urgent
+       data that we must pass to the application. */
+    if((BUF->flags & TCP_URG) != 0) {
+#if UIP_URGDATA > 0
+      uip_urglen = (BUF->urgp[0] << 8) | BUF->urgp[1];
+      if(uip_urglen > uip_len) {
+       /* There is more urgent data in the next segment to come. */
+       uip_urglen = uip_len;
+      }
+      uip_add_rcv_nxt(uip_urglen);
+      uip_len -= uip_urglen;
+      uip_urgdata = uip_appdata;
+      uip_appdata += uip_urglen;
+    } else {
+      uip_urglen = 0;
+#else /* UIP_URGDATA > 0 */
+      uip_appdata = ((char *)uip_appdata) + ((BUF->urgp[0] << 8) | BUF->urgp[1]);
+      uip_len -= (BUF->urgp[0] << 8) | BUF->urgp[1];
+#endif /* UIP_URGDATA > 0 */
+    }
+
+    /* If uip_len > 0 we have TCP data in the packet, and we flag this
+       by setting the UIP_NEWDATA flag and update the sequence number
+       we acknowledge. If the application has stopped the dataflow
+       using uip_stop(), we must not accept any data packets from the
+       remote host. */
+    if(uip_len > 0 && !(uip_connr->tcpstateflags & UIP_STOPPED)) {
+      uip_flags |= UIP_NEWDATA;
+      uip_add_rcv_nxt(uip_len);
+    }
+
+    /* Check if the available buffer space advertised by the other end
+       is smaller than the initial MSS for this connection. If so, we
+       set the current MSS to the window size to ensure that the
+       application does not send more data than the other end can
+       handle.
+
+       If the remote host advertises a zero window, we set the MSS to
+       the initial MSS so that the application will send an entire MSS
+       of data. This data will not be acknowledged by the receiver,
+       and the application will retransmit it. This is called the
+       "persistent timer" and uses the retransmission mechanim.
+    */
+    tmp16 = ((u16_t)BUF->wnd[0] << 8) + (u16_t)BUF->wnd[1];
+    if(tmp16 > uip_connr->initialmss ||
+       tmp16 == 0) {
+      tmp16 = uip_connr->initialmss;
+    }
+    uip_connr->mss = tmp16;
+
+    /* If this packet constitutes an ACK for outstanding data (flagged
+       by the UIP_ACKDATA flag, we should call the application since it
+       might want to send more data. If the incoming packet had data
+       from the peer (as flagged by the UIP_NEWDATA flag), the
+       application must also be notified.
+
+       When the application is called, the global variable uip_len
+       contains the length of the incoming data. The application can
+       access the incoming data through the global pointer
+       uip_appdata, which usually points UIP_IPTCPH_LEN + UIP_LLH_LEN
+       bytes into the uip_buf array.
+
+       If the application wishes to send any data, this data should be
+       put into the uip_appdata and the length of the data should be
+       put into uip_len. If the application don't have any data to
+       send, uip_len must be set to 0. */
+    if(uip_flags & (UIP_NEWDATA | UIP_ACKDATA)) {
+      uip_slen = 0;
+      UIP_APPCALL();
+
+    appsend:
+      
+      if(uip_flags & UIP_ABORT) {
+       uip_slen = 0;
+       uip_connr->tcpstateflags = UIP_CLOSED;
+       BUF->flags = TCP_RST | TCP_ACK;
+       goto tcp_send_nodata;
+      }
+
+      if(uip_flags & UIP_CLOSE) {
+       uip_slen = 0;
+       uip_connr->len = 1;
+       uip_connr->tcpstateflags = UIP_FIN_WAIT_1;
+       uip_connr->nrtx = 0;
+       BUF->flags = TCP_FIN | TCP_ACK;
+       goto tcp_send_nodata;
+      }
+
+      /* If uip_slen > 0, the application has data to be sent. */
+      if(uip_slen > 0) {
+
+       /* If the connection has acknowledged data, the contents of
+          the ->len variable should be discarded. */
+       if((uip_flags & UIP_ACKDATA) != 0) {
+         uip_connr->len = 0;
+       }
+
+       /* If the ->len variable is non-zero the connection has
+          already data in transit and cannot send anymore right
+          now. */
+       if(uip_connr->len == 0) {
+
+         /* The application cannot send more than what is allowed by
+            the mss (the minumum of the MSS and the available
+            window). */
+         if(uip_slen > uip_connr->mss) {
+           uip_slen = uip_connr->mss;
+         }
+
+         /* Remember how much data we send out now so that we know
+            when everything has been acknowledged. */
+         uip_connr->len = uip_slen;
+       } else {
+
+         /* If the application already had unacknowledged data, we
+            make sure that the application does not send (i.e.,
+            retransmit) out more than it previously sent out. */
+         uip_slen = uip_connr->len;
+       }
+      }
+      uip_connr->nrtx = 0;
+    apprexmit:
+      uip_appdata = uip_sappdata;
+      
+      /* If the application has data to be sent, or if the incoming
+         packet had new data in it, we must send out a packet. */
+      if(uip_slen > 0 && uip_connr->len > 0) {
+       /* Add the length of the IP and TCP headers. */
+       uip_len = uip_connr->len + UIP_TCPIP_HLEN;
+       /* We always set the ACK flag in response packets. */
+       BUF->flags = TCP_ACK | TCP_PSH;
+       /* Send the packet. */
+       goto tcp_send_noopts;
+      }
+      /* If there is no data to send, just send out a pure ACK if
+        there is newdata. */
+      if(uip_flags & UIP_NEWDATA) {
+       uip_len = UIP_TCPIP_HLEN;
+       BUF->flags = TCP_ACK;
+       goto tcp_send_noopts;
+      }
+    }
+    goto drop;
+  case UIP_LAST_ACK:
+    /* We can close this connection if the peer has acknowledged our
+       FIN. This is indicated by the UIP_ACKDATA flag. */
+    if(uip_flags & UIP_ACKDATA) {
+      uip_connr->tcpstateflags = UIP_CLOSED;
+      uip_flags = UIP_CLOSE;
+      UIP_APPCALL();
+    }
+    break;
+    
+  case UIP_FIN_WAIT_1:
+    /* The application has closed the connection, but the remote host
+       hasn't closed its end yet. Thus we do nothing but wait for a
+       FIN from the other side. */
+    if(uip_len > 0) {
+      uip_add_rcv_nxt(uip_len);
+    }
+    if(BUF->flags & TCP_FIN) {
+      if(uip_flags & UIP_ACKDATA) {
+       uip_connr->tcpstateflags = UIP_TIME_WAIT;
+       uip_connr->timer = 0;
+       uip_connr->len = 0;
+      } else {
+       uip_connr->tcpstateflags = UIP_CLOSING;
+      }
+      uip_add_rcv_nxt(1);
+      uip_flags = UIP_CLOSE;
+      UIP_APPCALL();
+      goto tcp_send_ack;
+    } else if(uip_flags & UIP_ACKDATA) {
+      uip_connr->tcpstateflags = UIP_FIN_WAIT_2;
+      uip_connr->len = 0;
+      goto drop;
+    }
+    if(uip_len > 0) {
+      goto tcp_send_ack;
+    }
+    goto drop;
+      
+  case UIP_FIN_WAIT_2:
+    if(uip_len > 0) {
+      uip_add_rcv_nxt(uip_len);
+    }
+    if(BUF->flags & TCP_FIN) {
+      uip_connr->tcpstateflags = UIP_TIME_WAIT;
+      uip_connr->timer = 0;
+      uip_add_rcv_nxt(1);
+      uip_flags = UIP_CLOSE;
+      UIP_APPCALL();
+      goto tcp_send_ack;
+    }
+    if(uip_len > 0) {
+      goto tcp_send_ack;
+    }
+    goto drop;
+
+  case UIP_TIME_WAIT:
+    goto tcp_send_ack;
+    
+  case UIP_CLOSING:
+    if(uip_flags & UIP_ACKDATA) {
+      uip_connr->tcpstateflags = UIP_TIME_WAIT;
+      uip_connr->timer = 0;
+    }
+  }
+  goto drop;
+  
+
+  /* We jump here when we are ready to send the packet, and just want
+     to set the appropriate TCP sequence numbers in the TCP header. */
+ tcp_send_ack:
+  BUF->flags = TCP_ACK;
+ tcp_send_nodata:
+  uip_len = UIP_IPTCPH_LEN;
+ tcp_send_noopts:
+  BUF->tcpoffset = (UIP_TCPH_LEN / 4) << 4;
+ tcp_send:
+  /* We're done with the input processing. We are now ready to send a
+     reply. Our job is to fill in all the fields of the TCP and IP
+     headers before calculating the checksum and finally send the
+     packet. */
+  BUF->ackno[0] = uip_connr->rcv_nxt[0];
+  BUF->ackno[1] = uip_connr->rcv_nxt[1];
+  BUF->ackno[2] = uip_connr->rcv_nxt[2];
+  BUF->ackno[3] = uip_connr->rcv_nxt[3];
+  
+  BUF->seqno[0] = uip_connr->snd_nxt[0];
+  BUF->seqno[1] = uip_connr->snd_nxt[1];
+  BUF->seqno[2] = uip_connr->snd_nxt[2];
+  BUF->seqno[3] = uip_connr->snd_nxt[3];
+
+  BUF->proto = UIP_PROTO_TCP;
+  
+  BUF->srcport  = uip_connr->lport;
+  BUF->destport = uip_connr->rport;
+
+  uip_ipaddr_copy(BUF->srcipaddr, uip_hostaddr);
+  uip_ipaddr_copy(BUF->destipaddr, uip_connr->ripaddr);
+
+  if(uip_connr->tcpstateflags & UIP_STOPPED) {
+    /* If the connection has issued uip_stop(), we advertise a zero
+       window so that the remote host will stop sending data. */
+    BUF->wnd[0] = BUF->wnd[1] = 0;
+  } else {
+    BUF->wnd[0] = ((UIP_RECEIVE_WINDOW) >> 8);
+    BUF->wnd[1] = ((UIP_RECEIVE_WINDOW) & 0xff);
+  }
+
+ tcp_send_noconn:
+  BUF->ttl = UIP_TTL;
+#if UIP_CONF_IPV6
+  /* For IPv6, the IP length field does not include the IPv6 IP header
+     length. */
+  BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
+  BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
+#else /* UIP_CONF_IPV6 */
+  BUF->len[0] = (uip_len >> 8);
+  BUF->len[1] = (uip_len & 0xff);
+#endif /* UIP_CONF_IPV6 */
+
+  BUF->urgp[0] = BUF->urgp[1] = 0;
+  
+  /* Calculate TCP checksum. */
+  BUF->tcpchksum = 0;
+  BUF->tcpchksum = ~(uip_tcpchksum());
+  
+ ip_send_nolen:
+
+#if UIP_CONF_IPV6
+  BUF->vtc = 0x60;
+  BUF->tcflow = 0x00;
+  BUF->flow = 0x00;
+#else /* UIP_CONF_IPV6 */
+  BUF->vhl = 0x45;
+  BUF->tos = 0;
+  BUF->ipoffset[0] = BUF->ipoffset[1] = 0;
+  ++ipid;
+  BUF->ipid[0] = ipid >> 8;
+  BUF->ipid[1] = ipid & 0xff;
+  /* Calculate IP checksum. */
+  BUF->ipchksum = 0;
+  BUF->ipchksum = ~(uip_ipchksum());
+  DEBUG_PRINTF("uip ip_send_nolen: chkecum 0x%04x\n", uip_ipchksum());
+#endif /* UIP_CONF_IPV6 */
+   
+  UIP_STAT(++uip_stat.tcp.sent);
+ send:
+  DEBUG_PRINTF("Sending packet with length %d (%d)\n", uip_len,
+              (BUF->len[0] << 8) | BUF->len[1]);
+  
+  UIP_STAT(++uip_stat.ip.sent);
+  /* Return and let the caller do the actual transmission. */
+  uip_flags = 0;
+  return;
+ drop:
+  uip_len = 0;
+  uip_flags = 0;
+  return;
+}
+/*---------------------------------------------------------------------------*/
+u16_t
+htons(u16_t val)
+{
+  return HTONS(val);
+}
+/*---------------------------------------------------------------------------*/
+void
+uip_send(const void *data, int len)
+{
+  if(len > 0) {
+    uip_slen = len;
+    if(data != uip_sappdata) {
+      memcpy(uip_sappdata, (data), uip_slen);
+    }
+  }
+}
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip.h b/Projects/Incomplete/Webserver/Lib/uip/uip.h
new file mode 100644 (file)
index 0000000..4fc0452
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip.h
@@ -0,0 +1,1601 @@
+
+/**
+ * \addtogroup uip
+ * @{
+ */
+
+/**
+ * \file
+ * Header file for the uIP TCP/IP stack.
+ * \author Adam Dunkels <adam@dunkels.com>
+ *
+ * The uIP TCP/IP stack header file contains definitions for a number
+ * of C macros that are used by uIP programs as well as internal uIP
+ * structures, TCP/IP header structures and function declarations.
+ *
+ */
+
+
+/*
+ * 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.
+ *
+ * $Id: uip.h,v 1.40 2006/06/08 07:12:07 adam Exp $
+ *
+ */
+
+#ifndef __UIP_H__
+#define __UIP_H__
+
+#include "uipopt.h"
+
+/**
+ * Repressentation of an IP address.
+ *
+ */
+typedef u16_t uip_ip4addr_t[2];
+typedef u16_t uip_ip6addr_t[8];
+#if UIP_CONF_IPV6
+typedef uip_ip6addr_t uip_ipaddr_t;
+#else /* UIP_CONF_IPV6 */
+typedef uip_ip4addr_t uip_ipaddr_t;
+#endif /* UIP_CONF_IPV6 */
+
+/*---------------------------------------------------------------------------*/
+/* First, the functions that should be called from the
+ * system. Initialization, the periodic timer and incoming packets are
+ * handled by the following three functions.
+ */
+
+/**
+ * \defgroup uipconffunc uIP configuration functions
+ * @{
+ *
+ * The uIP configuration functions are used for setting run-time
+ * parameters in uIP such as IP addresses.
+ */
+
+/**
+ * Set the IP address of this host.
+ *
+ * The IP address is represented as a 4-byte array where the first
+ * octet of the IP address is put in the first member of the 4-byte
+ * array.
+ *
+ * Example:
+ \code
+
+ uip_ipaddr_t addr;
+
+ uip_ipaddr(&addr, 192,168,1,2);
+ uip_sethostaddr(&addr);
+ 
+ \endcode
+ * \param addr A pointer to an IP address of type uip_ipaddr_t;
+ *
+ * \sa uip_ipaddr()
+ *
+ * \hideinitializer
+ */
+#define uip_sethostaddr(addr) uip_ipaddr_copy(uip_hostaddr, (addr))
+
+/**
+ * Get the IP address of this host.
+ *
+ * The IP address is represented as a 4-byte array where the first
+ * octet of the IP address is put in the first member of the 4-byte
+ * array.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t hostaddr;
+
+ uip_gethostaddr(&hostaddr);
+ \endcode
+ * \param addr A pointer to a uip_ipaddr_t variable that will be
+ * filled in with the currently configured IP address.
+ *
+ * \hideinitializer
+ */
+#define uip_gethostaddr(addr) uip_ipaddr_copy((addr), uip_hostaddr)
+
+/**
+ * Set the default router's IP address.
+ *
+ * \param addr A pointer to a uip_ipaddr_t variable containing the IP
+ * address of the default router.
+ *
+ * \sa uip_ipaddr()
+ *
+ * \hideinitializer
+ */
+#define uip_setdraddr(addr) uip_ipaddr_copy(uip_draddr, (addr))
+
+/**
+ * Set the netmask.
+ *
+ * \param addr A pointer to a uip_ipaddr_t variable containing the IP
+ * address of the netmask.
+ *
+ * \sa uip_ipaddr()
+ *
+ * \hideinitializer
+ */
+#define uip_setnetmask(addr) uip_ipaddr_copy(uip_netmask, (addr))
+
+
+/**
+ * Get the default router's IP address.
+ *
+ * \param addr A pointer to a uip_ipaddr_t variable that will be
+ * filled in with the IP address of the default router.
+ *
+ * \hideinitializer
+ */
+#define uip_getdraddr(addr) uip_ipaddr_copy((addr), uip_draddr)
+
+/**
+ * Get the netmask.
+ *
+ * \param addr A pointer to a uip_ipaddr_t variable that will be
+ * filled in with the value of the netmask.
+ *
+ * \hideinitializer
+ */
+#define uip_getnetmask(addr) uip_ipaddr_copy((addr), uip_netmask)
+
+/** @} */
+
+/**
+ * \defgroup uipinit uIP initialization functions
+ * @{
+ *
+ * The uIP initialization functions are used for booting uIP.
+ */
+
+/**
+ * uIP initialization function.
+ *
+ * This function should be called at boot up to initilize the uIP
+ * TCP/IP stack.
+ */
+void uip_init(void);
+
+/**
+ * uIP initialization function.
+ *
+ * This function may be used at boot time to set the initial ip_id.
+ */
+void uip_setipid(u16_t id);
+
+/** @} */
+
+/**
+ * \defgroup uipdevfunc uIP device driver functions
+ * @{
+ *
+ * These functions are used by a network device driver for interacting
+ * with uIP.
+ */
+
+/**
+ * Process an incoming packet.
+ *
+ * This function should be called when the device driver has received
+ * a packet from the network. The packet from the device driver must
+ * be present in the uip_buf buffer, and the length of the packet
+ * should be placed in the uip_len variable.
+ *
+ * When the function returns, there may be an outbound packet placed
+ * in the uip_buf packet buffer. If so, the uip_len variable is set to
+ * the length of the packet. If no packet is to be sent out, the
+ * uip_len variable is set to 0.
+ *
+ * The usual way of calling the function is presented by the source
+ * code below.
+ \code
+  uip_len = devicedriver_poll();
+  if(uip_len > 0) {
+    uip_input();
+    if(uip_len > 0) {
+      devicedriver_send();
+    }
+  }
+ \endcode
+ *
+ * \note If you are writing a uIP device driver that needs ARP
+ * (Address Resolution Protocol), e.g., when running uIP over
+ * Ethernet, you will need to call the uIP ARP code before calling
+ * this function:
+ \code
+  #define BUF ((struct uip_eth_hdr *)&uip_buf[0])
+  uip_len = ethernet_devicedrver_poll();
+  if(uip_len > 0) {
+    if(BUF->type == HTONS(UIP_ETHTYPE_IP)) {
+      uip_arp_ipin();
+      uip_input();
+      if(uip_len > 0) {
+        uip_arp_out();
+       ethernet_devicedriver_send();
+      }
+    } else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) {
+      uip_arp_arpin();
+      if(uip_len > 0) {
+       ethernet_devicedriver_send();
+      }
+    }
+ \endcode
+ *
+ * \hideinitializer
+ */
+#define uip_input()        uip_process(UIP_DATA)
+
+/**
+ * Periodic processing for a connection identified by its number.
+ *
+ * This function does the necessary periodic processing (timers,
+ * polling) for a uIP TCP conneciton, and should be called when the
+ * periodic uIP timer goes off. It should be called for every
+ * connection, regardless of whether they are open of closed.
+ *
+ * When the function returns, it may have an outbound packet waiting
+ * for service in the uIP packet buffer, and if so the uip_len
+ * variable is set to a value larger than zero. The device driver
+ * should be called to send out the packet.
+ *
+ * The ususal way of calling the function is through a for() loop like
+ * this:
+ \code
+  for(i = 0; i < UIP_CONNS; ++i) {
+    uip_periodic(i);
+    if(uip_len > 0) {
+      devicedriver_send();
+    }
+  }
+ \endcode
+ *
+ * \note If you are writing a uIP device driver that needs ARP
+ * (Address Resolution Protocol), e.g., when running uIP over
+ * Ethernet, you will need to call the uip_arp_out() function before
+ * calling the device driver:
+ \code
+  for(i = 0; i < UIP_CONNS; ++i) {
+    uip_periodic(i);
+    if(uip_len > 0) {
+      uip_arp_out();
+      ethernet_devicedriver_send();
+    }
+  }
+ \endcode
+ *
+ * \param conn The number of the connection which is to be periodically polled.
+ *
+ * \hideinitializer
+ */
+#define uip_periodic(conn) do { uip_conn = &uip_conns[conn]; \
+                                uip_process(UIP_TIMER); } while (0)
+
+/**
+ *
+ *
+ */
+#define uip_conn_active(conn) (uip_conns[conn].tcpstateflags != UIP_CLOSED)
+
+/**
+ * Perform periodic processing for a connection identified by a pointer
+ * to its structure.
+ *
+ * Same as uip_periodic() but takes a pointer to the actual uip_conn
+ * struct instead of an integer as its argument. This function can be
+ * used to force periodic processing of a specific connection.
+ *
+ * \param conn A pointer to the uip_conn struct for the connection to
+ * be processed.
+ *
+ * \hideinitializer
+ */
+#define uip_periodic_conn(conn) do { uip_conn = conn; \
+                                     uip_process(UIP_TIMER); } while (0)
+
+/**
+ * Reuqest that a particular connection should be polled.
+ *
+ * Similar to uip_periodic_conn() but does not perform any timer
+ * processing. The application is polled for new data.
+ *
+ * \param conn A pointer to the uip_conn struct for the connection to
+ * be processed.
+ *
+ * \hideinitializer
+ */
+#define uip_poll_conn(conn) do { uip_conn = conn; \
+                                 uip_process(UIP_POLL_REQUEST); } while (0)
+
+
+#if UIP_UDP
+/**
+ * Periodic processing for a UDP connection identified by its number.
+ *
+ * This function is essentially the same as uip_periodic(), but for
+ * UDP connections. It is called in a similar fashion as the
+ * uip_periodic() function:
+ \code
+  for(i = 0; i < UIP_UDP_CONNS; i++) {
+    uip_udp_periodic(i);
+    if(uip_len > 0) {
+      devicedriver_send();
+    }
+  }
+ \endcode
+ *
+ * \note As for the uip_periodic() function, special care has to be
+ * taken when using uIP together with ARP and Ethernet:
+ \code
+  for(i = 0; i < UIP_UDP_CONNS; i++) {
+    uip_udp_periodic(i);
+    if(uip_len > 0) {
+      uip_arp_out();
+      ethernet_devicedriver_send();
+    }
+  }
+ \endcode
+ *
+ * \param conn The number of the UDP connection to be processed.
+ *
+ * \hideinitializer
+ */
+#define uip_udp_periodic(conn) do { uip_udp_conn = &uip_udp_conns[conn]; \
+                                uip_process(UIP_UDP_TIMER); } while (0)
+
+/**
+ * Periodic processing for a UDP connection identified by a pointer to
+ * its structure.
+ *
+ * Same as uip_udp_periodic() but takes a pointer to the actual
+ * uip_conn struct instead of an integer as its argument. This
+ * function can be used to force periodic processing of a specific
+ * connection.
+ *
+ * \param conn A pointer to the uip_udp_conn struct for the connection
+ * to be processed.
+ *
+ * \hideinitializer
+ */
+#define uip_udp_periodic_conn(conn) do { uip_udp_conn = conn; \
+                                         uip_process(UIP_UDP_TIMER); } while (0)
+
+
+#endif /* UIP_UDP */
+
+/**
+ * The uIP packet buffer.
+ *
+ * The uip_buf array is used to hold incoming and outgoing
+ * packets. The device driver should place incoming data into this
+ * buffer. When sending data, the device driver should read the link
+ * level headers and the TCP/IP headers from this buffer. The size of
+ * the link level headers is configured by the UIP_LLH_LEN define.
+ *
+ * \note The application data need not be placed in this buffer, so
+ * the device driver must read it from the place pointed to by the
+ * uip_appdata pointer as illustrated by the following example:
+ \code
+ void
+ devicedriver_send(void)
+ {
+    hwsend(&uip_buf[0], UIP_LLH_LEN);
+    if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
+      hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
+    } else {
+      hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
+      hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
+    }
+ }
+ \endcode
+ */
+extern u8_t uip_buf[UIP_BUFSIZE+2];
+
+/** @} */
+
+/*---------------------------------------------------------------------------*/
+/* Functions that are used by the uIP application program. Opening and
+ * closing connections, sending and receiving data, etc. is all
+ * handled by the functions below.
+*/
+/**
+ * \defgroup uipappfunc uIP application functions
+ * @{
+ *
+ * Functions used by an application running of top of uIP.
+ */
+
+/**
+ * Start listening to the specified port.
+ *
+ * \note Since this function expects the port number in network byte
+ * order, a conversion using HTONS() or htons() is necessary.
+ *
+ \code
+ uip_listen(HTONS(80));
+ \endcode
+ *
+ * \param port A 16-bit port number in network byte order.
+ */
+void uip_listen(u16_t port);
+
+/**
+ * Stop listening to the specified port.
+ *
+ * \note Since this function expects the port number in network byte
+ * order, a conversion using HTONS() or htons() is necessary.
+ *
+ \code
+ uip_unlisten(HTONS(80));
+ \endcode
+ *
+ * \param port A 16-bit port number in network byte order.
+ */
+void uip_unlisten(u16_t port);
+
+/**
+ * Connect to a remote host using TCP.
+ *
+ * This function is used to start a new connection to the specified
+ * port on the specied host. It allocates a new connection identifier,
+ * sets the connection to the SYN_SENT state and sets the
+ * retransmission timer to 0. This will cause a TCP SYN segment to be
+ * sent out the next time this connection is periodically processed,
+ * which usually is done within 0.5 seconds after the call to
+ * uip_connect().
+ *
+ * \note This function is avaliable only if support for active open
+ * has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.
+ *
+ * \note Since this function requires the port number to be in network
+ * byte order, a conversion using HTONS() or htons() is necessary.
+ *
+ \code
+ uip_ipaddr_t ipaddr;
+
+ uip_ipaddr(&ipaddr, 192,168,1,2);
+ uip_connect(&ipaddr, HTONS(80));
+ \endcode
+ *
+ * \param ripaddr The IP address of the remote hot.
+ *
+ * \param port A 16-bit port number in network byte order.
+ *
+ * \return A pointer to the uIP connection identifier for the new connection,
+ * or NULL if no connection could be allocated.
+ *
+ */
+struct uip_conn *uip_connect(uip_ipaddr_t *ripaddr, u16_t port);
+
+
+
+/**
+ * \internal
+ *
+ * Check if a connection has outstanding (i.e., unacknowledged) data.
+ *
+ * \param conn A pointer to the uip_conn structure for the connection.
+ *
+ * \hideinitializer
+ */
+#define uip_outstanding(conn) ((conn)->len)
+
+/**
+ * Send data on the current connection.
+ *
+ * This function is used to send out a single segment of TCP
+ * data. Only applications that have been invoked by uIP for event
+ * processing can send data.
+ *
+ * The amount of data that actually is sent out after a call to this
+ * funcion is determined by the maximum amount of data TCP allows. uIP
+ * will automatically crop the data so that only the appropriate
+ * amount of data is sent. The function uip_mss() can be used to query
+ * uIP for the amount of data that actually will be sent.
+ *
+ * \note This function does not guarantee that the sent data will
+ * arrive at the destination. If the data is lost in the network, the
+ * application will be invoked with the uip_rexmit() event being
+ * set. The application will then have to resend the data using this
+ * function.
+ *
+ * \param data A pointer to the data which is to be sent.
+ *
+ * \param len The maximum amount of data bytes to be sent.
+ *
+ * \hideinitializer
+ */
+void uip_send(const void *data, int len);
+
+/**
+ * The length of any incoming data that is currently avaliable (if avaliable)
+ * in the uip_appdata buffer.
+ *
+ * The test function uip_data() must first be used to check if there
+ * is any data available at all.
+ *
+ * \hideinitializer
+ */
+/*void uip_datalen(void);*/
+#define uip_datalen()       uip_len
+
+/**
+ * The length of any out-of-band data (urgent data) that has arrived
+ * on the connection.
+ *
+ * \note The configuration parameter UIP_URGDATA must be set for this
+ * function to be enabled.
+ *
+ * \hideinitializer
+ */
+#define uip_urgdatalen()    uip_urglen
+
+/**
+ * Close the current connection.
+ *
+ * This function will close the current connection in a nice way.
+ *
+ * \hideinitializer
+ */
+#define uip_close()         (uip_flags = UIP_CLOSE)
+
+/**
+ * Abort the current connection.
+ *
+ * This function will abort (reset) the current connection, and is
+ * usually used when an error has occured that prevents using the
+ * uip_close() function.
+ *
+ * \hideinitializer
+ */
+#define uip_abort()         (uip_flags = UIP_ABORT)
+
+/**
+ * Tell the sending host to stop sending data.
+ *
+ * This function will close our receiver's window so that we stop
+ * receiving data for the current connection.
+ *
+ * \hideinitializer
+ */
+#define uip_stop()          (uip_conn->tcpstateflags |= UIP_STOPPED)
+
+/**
+ * Find out if the current connection has been previously stopped with
+ * uip_stop().
+ *
+ * \hideinitializer
+ */
+#define uip_stopped(conn)   ((conn)->tcpstateflags & UIP_STOPPED)
+
+/**
+ * Restart the current connection, if is has previously been stopped
+ * with uip_stop().
+ *
+ * This function will open the receiver's window again so that we
+ * start receiving data for the current connection.
+ *
+ * \hideinitializer
+ */
+#define uip_restart()         do { uip_flags |= UIP_NEWDATA; \
+                                   uip_conn->tcpstateflags &= ~UIP_STOPPED; \
+                              } while(0)
+
+
+/* uIP tests that can be made to determine in what state the current
+   connection is, and what the application function should do. */
+
+/**
+ * Is the current connection a UDP connection?
+ *
+ * This function checks whether the current connection is a UDP connection.
+ *
+ * \hideinitializer
+ *
+ */
+#define uip_udpconnection() (uip_conn == NULL)
+
+/**
+ * Is new incoming data available?
+ *
+ * Will reduce to non-zero if there is new data for the application
+ * present at the uip_appdata pointer. The size of the data is
+ * avaliable through the uip_len variable.
+ *
+ * \hideinitializer
+ */
+#define uip_newdata()   (uip_flags & UIP_NEWDATA)
+
+/**
+ * Has previously sent data been acknowledged?
+ *
+ * Will reduce to non-zero if the previously sent data has been
+ * acknowledged by the remote host. This means that the application
+ * can send new data.
+ *
+ * \hideinitializer
+ */
+#define uip_acked()   (uip_flags & UIP_ACKDATA)
+
+/**
+ * Has the connection just been connected?
+ *
+ * Reduces to non-zero if the current connection has been connected to
+ * a remote host. This will happen both if the connection has been
+ * actively opened (with uip_connect()) or passively opened (with
+ * uip_listen()).
+ *
+ * \hideinitializer
+ */
+#define uip_connected() (uip_flags & UIP_CONNECTED)
+
+/**
+ * Has the connection been closed by the other end?
+ *
+ * Is non-zero if the connection has been closed by the remote
+ * host. The application may then do the necessary clean-ups.
+ *
+ * \hideinitializer
+ */
+#define uip_closed()    (uip_flags & UIP_CLOSE)
+
+/**
+ * Has the connection been aborted by the other end?
+ *
+ * Non-zero if the current connection has been aborted (reset) by the
+ * remote host.
+ *
+ * \hideinitializer
+ */
+#define uip_aborted()    (uip_flags & UIP_ABORT)
+
+/**
+ * Has the connection timed out?
+ *
+ * Non-zero if the current connection has been aborted due to too many
+ * retransmissions.
+ *
+ * \hideinitializer
+ */
+#define uip_timedout()    (uip_flags & UIP_TIMEDOUT)
+
+/**
+ * Do we need to retransmit previously data?
+ *
+ * Reduces to non-zero if the previously sent data has been lost in
+ * the network, and the application should retransmit it. The
+ * application should send the exact same data as it did the last
+ * time, using the uip_send() function.
+ *
+ * \hideinitializer
+ */
+#define uip_rexmit()     (uip_flags & UIP_REXMIT)
+
+/**
+ * Is the connection being polled by uIP?
+ *
+ * Is non-zero if the reason the application is invoked is that the
+ * current connection has been idle for a while and should be
+ * polled.
+ *
+ * The polling event can be used for sending data without having to
+ * wait for the remote host to send data.
+ *
+ * \hideinitializer
+ */
+#define uip_poll()       (uip_flags & UIP_POLL)
+
+/**
+ * Get the initial maxium segment size (MSS) of the current
+ * connection.
+ *
+ * \hideinitializer
+ */
+#define uip_initialmss()             (uip_conn->initialmss)
+
+/**
+ * Get the current maxium segment size that can be sent on the current
+ * connection.
+ *
+ * The current maxiumum segment size that can be sent on the
+ * connection is computed from the receiver's window and the MSS of
+ * the connection (which also is available by calling
+ * uip_initialmss()).
+ *
+ * \hideinitializer
+ */
+#define uip_mss()             (uip_conn->mss)
+
+/**
+ * Set up a new UDP connection.
+ *
+ * This function sets up a new UDP connection. The function will
+ * automatically allocate an unused local port for the new
+ * connection. However, another port can be chosen by using the
+ * uip_udp_bind() call, after the uip_udp_new() function has been
+ * called.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t addr;
+ struct uip_udp_conn *c;
+ 
+ uip_ipaddr(&addr, 192,168,2,1);
+ c = uip_udp_new(&addr, HTONS(12345));
+ if(c != NULL) {
+   uip_udp_bind(c, HTONS(12344));
+ }
+ \endcode
+ * \param ripaddr The IP address of the remote host.
+ *
+ * \param rport The remote port number in network byte order.
+ *
+ * \return The uip_udp_conn structure for the new connection or NULL
+ * if no connection could be allocated.
+ */
+struct uip_udp_conn *uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport);
+
+/**
+ * Removed a UDP connection.
+ *
+ * \param conn A pointer to the uip_udp_conn structure for the connection.
+ *
+ * \hideinitializer
+ */
+#define uip_udp_remove(conn) (conn)->lport = 0
+
+/**
+ * Bind a UDP connection to a local port.
+ *
+ * \param conn A pointer to the uip_udp_conn structure for the
+ * connection.
+ *
+ * \param port The local port number, in network byte order.
+ *
+ * \hideinitializer
+ */
+#define uip_udp_bind(conn, port) (conn)->lport = port
+
+/**
+ * Send a UDP datagram of length len on the current connection.
+ *
+ * This function can only be called in response to a UDP event (poll
+ * or newdata). The data must be present in the uip_buf buffer, at the
+ * place pointed to by the uip_appdata pointer.
+ *
+ * \param len The length of the data in the uip_buf buffer.
+ *
+ * \hideinitializer
+ */
+#define uip_udp_send(len) uip_send((char *)uip_appdata, len)
+
+/** @} */
+
+/* uIP convenience and converting functions. */
+
+/**
+ * \defgroup uipconvfunc uIP conversion functions
+ * @{
+ *
+ * These functions can be used for converting between different data
+ * formats used by uIP.
+ */
+ 
+/**
+ * Construct an IP address from four bytes.
+ *
+ * This function constructs an IP address of the type that uIP handles
+ * internally from four bytes. The function is handy for specifying IP
+ * addresses to use with e.g. the uip_connect() function.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr;
+ struct uip_conn *c;
+ 
+ uip_ipaddr(&ipaddr, 192,168,1,2);
+ c = uip_connect(&ipaddr, HTONS(80));
+ \endcode
+ *
+ * \param addr A pointer to a uip_ipaddr_t variable that will be
+ * filled in with the IP address.
+ *
+ * \param addr0 The first octet of the IP address.
+ * \param addr1 The second octet of the IP address.
+ * \param addr2 The third octet of the IP address.
+ * \param addr3 The forth octet of the IP address.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr(addr, addr0,addr1,addr2,addr3) do { \
+                     ((u16_t *)(addr))[0] = HTONS(((addr0) << 8) | (addr1)); \
+                     ((u16_t *)(addr))[1] = HTONS(((addr2) << 8) | (addr3)); \
+                  } while(0)
+
+/**
+ * Construct an IPv6 address from eight 16-bit words.
+ *
+ * This function constructs an IPv6 address.
+ *
+ * \hideinitializer
+ */
+#define uip_ip6addr(addr, addr0,addr1,addr2,addr3,addr4,addr5,addr6,addr7) do { \
+                     ((u16_t *)(addr))[0] = HTONS((addr0)); \
+                     ((u16_t *)(addr))[1] = HTONS((addr1)); \
+                     ((u16_t *)(addr))[2] = HTONS((addr2)); \
+                     ((u16_t *)(addr))[3] = HTONS((addr3)); \
+                     ((u16_t *)(addr))[4] = HTONS((addr4)); \
+                     ((u16_t *)(addr))[5] = HTONS((addr5)); \
+                     ((u16_t *)(addr))[6] = HTONS((addr6)); \
+                     ((u16_t *)(addr))[7] = HTONS((addr7)); \
+                  } while(0)
+
+/**
+ * Copy an IP address to another IP address.
+ *
+ * Copies an IP address from one place to another.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr1, ipaddr2;
+
+ uip_ipaddr(&ipaddr1, 192,16,1,2);
+ uip_ipaddr_copy(&ipaddr2, &ipaddr1);
+ \endcode
+ *
+ * \param dest The destination for the copy.
+ * \param src The source from where to copy.
+ *
+ * \hideinitializer
+ */
+#if !UIP_CONF_IPV6
+#define uip_ipaddr_copy(dest, src) do { \
+                     ((u16_t *)dest)[0] = ((u16_t *)src)[0]; \
+                     ((u16_t *)dest)[1] = ((u16_t *)src)[1]; \
+                  } while(0)
+#else /* !UIP_CONF_IPV6 */
+#define uip_ipaddr_copy(dest, src) memcpy(dest, src, sizeof(uip_ip6addr_t))
+#endif /* !UIP_CONF_IPV6 */
+
+/**
+ * Compare two IP addresses
+ *
+ * Compares two IP addresses.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr1, ipaddr2;
+
+ uip_ipaddr(&ipaddr1, 192,16,1,2);
+ if(uip_ipaddr_cmp(&ipaddr2, &ipaddr1)) {
+    printf("They are the same");
+ }
+ \endcode
+ *
+ * \param addr1 The first IP address.
+ * \param addr2 The second IP address.
+ *
+ * \hideinitializer
+ */
+#if !UIP_CONF_IPV6
+#define uip_ipaddr_cmp(addr1, addr2) (((u16_t *)addr1)[0] == ((u16_t *)addr2)[0] && \
+                                     ((u16_t *)addr1)[1] == ((u16_t *)addr2)[1])
+#else /* !UIP_CONF_IPV6 */
+#define uip_ipaddr_cmp(addr1, addr2) (memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0)
+#endif /* !UIP_CONF_IPV6 */
+
+/**
+ * Compare two IP addresses with netmasks
+ *
+ * Compares two IP addresses with netmasks. The masks are used to mask
+ * out the bits that are to be compared.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr1, ipaddr2, mask;
+
+ uip_ipaddr(&mask, 255,255,255,0);
+ uip_ipaddr(&ipaddr1, 192,16,1,2);
+ uip_ipaddr(&ipaddr2, 192,16,1,3);
+ if(uip_ipaddr_maskcmp(&ipaddr1, &ipaddr2, &mask)) {
+    printf("They are the same");
+ }
+ \endcode
+ *
+ * \param addr1 The first IP address.
+ * \param addr2 The second IP address.
+ * \param mask The netmask.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr_maskcmp(addr1, addr2, mask) \
+                          (((((u16_t *)addr1)[0] & ((u16_t *)mask)[0]) == \
+                            (((u16_t *)addr2)[0] & ((u16_t *)mask)[0])) && \
+                           ((((u16_t *)addr1)[1] & ((u16_t *)mask)[1]) == \
+                            (((u16_t *)addr2)[1] & ((u16_t *)mask)[1])))
+
+
+/**
+ * Mask out the network part of an IP address.
+ *
+ * Masks out the network part of an IP address, given the address and
+ * the netmask.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr1, ipaddr2, netmask;
+
+ uip_ipaddr(&ipaddr1, 192,16,1,2);
+ uip_ipaddr(&netmask, 255,255,255,0);
+ uip_ipaddr_mask(&ipaddr2, &ipaddr1, &netmask);
+ \endcode
+ *
+ * In the example above, the variable "ipaddr2" will contain the IP
+ * address 192.168.1.0.
+ *
+ * \param dest Where the result is to be placed.
+ * \param src The IP address.
+ * \param mask The netmask.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr_mask(dest, src, mask) do { \
+                     ((u16_t *)dest)[0] = ((u16_t *)src)[0] & ((u16_t *)mask)[0]; \
+                     ((u16_t *)dest)[1] = ((u16_t *)src)[1] & ((u16_t *)mask)[1]; \
+                  } while(0)
+
+/**
+ * Pick the first octet of an IP address.
+ *
+ * Picks out the first octet of an IP address.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr;
+ u8_t octet;
+
+ uip_ipaddr(&ipaddr, 1,2,3,4);
+ octet = uip_ipaddr1(&ipaddr);
+ \endcode
+ *
+ * In the example above, the variable "octet" will contain the value 1.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr1(addr) (htons(((u16_t *)(addr))[0]) >> 8)
+
+/**
+ * Pick the second octet of an IP address.
+ *
+ * Picks out the second octet of an IP address.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr;
+ u8_t octet;
+
+ uip_ipaddr(&ipaddr, 1,2,3,4);
+ octet = uip_ipaddr2(&ipaddr);
+ \endcode
+ *
+ * In the example above, the variable "octet" will contain the value 2.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr2(addr) (htons(((u16_t *)(addr))[0]) & 0xff)
+
+/**
+ * Pick the third octet of an IP address.
+ *
+ * Picks out the third octet of an IP address.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr;
+ u8_t octet;
+
+ uip_ipaddr(&ipaddr, 1,2,3,4);
+ octet = uip_ipaddr3(&ipaddr);
+ \endcode
+ *
+ * In the example above, the variable "octet" will contain the value 3.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr3(addr) (htons(((u16_t *)(addr))[1]) >> 8)
+
+/**
+ * Pick the fourth octet of an IP address.
+ *
+ * Picks out the fourth octet of an IP address.
+ *
+ * Example:
+ \code
+ uip_ipaddr_t ipaddr;
+ u8_t octet;
+
+ uip_ipaddr(&ipaddr, 1,2,3,4);
+ octet = uip_ipaddr4(&ipaddr);
+ \endcode
+ *
+ * In the example above, the variable "octet" will contain the value 4.
+ *
+ * \hideinitializer
+ */
+#define uip_ipaddr4(addr) (htons(((u16_t *)(addr))[1]) & 0xff)
+
+/**
+ * Convert 16-bit quantity from host byte order to network byte order.
+ *
+ * This macro is primarily used for converting constants from host
+ * byte order to network byte order. For converting variables to
+ * network byte order, use the htons() function instead.
+ *
+ * \hideinitializer
+ */
+#ifndef HTONS
+#   if UIP_BYTE_ORDER == UIP_BIG_ENDIAN
+#      define HTONS(n) (n)
+#   else /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
+#      define HTONS(n) (u16_t)((((u16_t) (n)) << 8) | (((u16_t) (n)) >> 8))
+#   endif /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
+#else
+#error "HTONS already defined!"
+#endif /* HTONS */
+
+/**
+ * Convert 16-bit quantity from host byte order to network byte order.
+ *
+ * This function is primarily used for converting variables from host
+ * byte order to network byte order. For converting constants to
+ * network byte order, use the HTONS() macro instead.
+ */
+#ifndef htons
+u16_t htons(u16_t val);
+#endif /* htons */
+#ifndef ntohs
+#define ntohs htons
+#endif
+
+/** @} */
+
+/**
+ * Pointer to the application data in the packet buffer.
+ *
+ * This pointer points to the application data when the application is
+ * called. If the application wishes to send data, the application may
+ * use this space to write the data into before calling uip_send().
+ */
+extern void *uip_appdata;
+
+#if UIP_URGDATA > 0
+/* u8_t *uip_urgdata:
+ *
+ * This pointer points to any urgent data that has been received. Only
+ * present if compiled with support for urgent data (UIP_URGDATA).
+ */
+extern void *uip_urgdata;
+#endif /* UIP_URGDATA > 0 */
+
+
+/**
+ * \defgroup uipdrivervars Variables used in uIP device drivers
+ * @{
+ *
+ * uIP has a few global variables that are used in device drivers for
+ * uIP.
+ */
+
+/**
+ * The length of the packet in the uip_buf buffer.
+ *
+ * The global variable uip_len holds the length of the packet in the
+ * uip_buf buffer.
+ *
+ * When the network device driver calls the uIP input function,
+ * uip_len should be set to the length of the packet in the uip_buf
+ * buffer.
+ *
+ * When sending packets, the device driver should use the contents of
+ * the uip_len variable to determine the length of the outgoing
+ * packet.
+ *
+ */
+extern u16_t uip_len;
+
+/** @} */
+
+#if UIP_URGDATA > 0
+extern u16_t uip_urglen, uip_surglen;
+#endif /* UIP_URGDATA > 0 */
+
+
+/**
+ * Representation of a uIP TCP connection.
+ *
+ * The uip_conn structure is used for identifying a connection. All
+ * but one field in the structure are to be considered read-only by an
+ * application. The only exception is the appstate field whos purpose
+ * is to let the application store application-specific state (e.g.,
+ * file pointers) for the connection. The type of this field is
+ * configured in the "uipopt.h" header file.
+ */
+struct uip_conn {
+  uip_ipaddr_t ripaddr;   /**< The IP address of the remote host. */
+  
+  u16_t lport;        /**< The local TCP port, in network byte order. */
+  u16_t rport;        /**< The local remote TCP port, in network byte
+                        order. */
+  
+  u8_t rcv_nxt[4];    /**< The sequence number that we expect to
+                        receive next. */
+  u8_t snd_nxt[4];    /**< The sequence number that was last sent by
+                         us. */
+  u16_t len;          /**< Length of the data that was previously sent. */
+  u16_t mss;          /**< Current maximum segment size for the
+                        connection. */
+  u16_t initialmss;   /**< Initial maximum segment size for the
+                        connection. */
+  u8_t sa;            /**< Retransmission time-out calculation state
+                        variable. */
+  u8_t sv;            /**< Retransmission time-out calculation state
+                        variable. */
+  u8_t rto;           /**< Retransmission time-out. */
+  u8_t tcpstateflags; /**< TCP state and flags. */
+  u8_t timer;         /**< The retransmission timer. */
+  u8_t nrtx;          /**< The number of retransmissions for the last
+                        segment sent. */
+
+  /** The application state. */
+  uip_tcp_appstate_t appstate;
+};
+
+
+/**
+ * Pointer to the current TCP connection.
+ *
+ * The uip_conn pointer can be used to access the current TCP
+ * connection.
+ */
+extern struct uip_conn *uip_conn;
+/* The array containing all uIP connections. */
+extern struct uip_conn uip_conns[UIP_CONNS];
+/**
+ * \addtogroup uiparch
+ * @{
+ */
+
+/**
+ * 4-byte array used for the 32-bit sequence number calculations.
+ */
+extern u8_t uip_acc32[4];
+
+/** @} */
+
+
+#if UIP_UDP
+/**
+ * Representation of a uIP UDP connection.
+ */
+struct uip_udp_conn {
+  uip_ipaddr_t ripaddr;   /**< The IP address of the remote peer. */
+  u16_t lport;        /**< The local port number in network byte order. */
+  u16_t rport;        /**< The remote port number in network byte order. */
+  u8_t  ttl;          /**< Default time-to-live. */
+
+  /** The application state. */
+  uip_udp_appstate_t appstate;
+};
+
+/**
+ * The current UDP connection.
+ */
+extern struct uip_udp_conn *uip_udp_conn;
+extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
+#endif /* UIP_UDP */
+
+/**
+ * The structure holding the TCP/IP statistics that are gathered if
+ * UIP_STATISTICS is set to 1.
+ *
+ */
+struct uip_stats {
+  struct {
+    uip_stats_t drop;     /**< Number of dropped packets at the IP
+                            layer. */
+    uip_stats_t recv;     /**< Number of received packets at the IP
+                            layer. */
+    uip_stats_t sent;     /**< Number of sent packets at the IP
+                            layer. */
+    uip_stats_t vhlerr;   /**< Number of packets dropped due to wrong
+                            IP version or header length. */
+    uip_stats_t hblenerr; /**< Number of packets dropped due to wrong
+                            IP length, high byte. */
+    uip_stats_t lblenerr; /**< Number of packets dropped due to wrong
+                            IP length, low byte. */
+    uip_stats_t fragerr;  /**< Number of packets dropped since they
+                            were IP fragments. */
+    uip_stats_t chkerr;   /**< Number of packets dropped due to IP
+                            checksum errors. */
+    uip_stats_t protoerr; /**< Number of packets dropped since they
+                            were neither ICMP, UDP nor TCP. */
+  } ip;                   /**< IP statistics. */
+  struct {
+    uip_stats_t drop;     /**< Number of dropped ICMP packets. */
+    uip_stats_t recv;     /**< Number of received ICMP packets. */
+    uip_stats_t sent;     /**< Number of sent ICMP packets. */
+    uip_stats_t typeerr;  /**< Number of ICMP packets with a wrong
+                            type. */
+  } icmp;                 /**< ICMP statistics. */
+  struct {
+    uip_stats_t drop;     /**< Number of dropped TCP segments. */
+    uip_stats_t recv;     /**< Number of recived TCP segments. */
+    uip_stats_t sent;     /**< Number of sent TCP segments. */
+    uip_stats_t chkerr;   /**< Number of TCP segments with a bad
+                            checksum. */
+    uip_stats_t ackerr;   /**< Number of TCP segments with a bad ACK
+                            number. */
+    uip_stats_t rst;      /**< Number of recevied TCP RST (reset) segments. */
+    uip_stats_t rexmit;   /**< Number of retransmitted TCP segments. */
+    uip_stats_t syndrop;  /**< Number of dropped SYNs due to too few
+                            connections was avaliable. */
+    uip_stats_t synrst;   /**< Number of SYNs for closed ports,
+                            triggering a RST. */
+  } tcp;                  /**< TCP statistics. */
+#if UIP_UDP
+  struct {
+    uip_stats_t drop;     /**< Number of dropped UDP segments. */
+    uip_stats_t recv;     /**< Number of recived UDP segments. */
+    uip_stats_t sent;     /**< Number of sent UDP segments. */
+    uip_stats_t chkerr;   /**< Number of UDP segments with a bad
+                            checksum. */
+  } udp;                  /**< UDP statistics. */
+#endif /* UIP_UDP */
+};
+
+/**
+ * The uIP TCP/IP statistics.
+ *
+ * This is the variable in which the uIP TCP/IP statistics are gathered.
+ */
+extern struct uip_stats uip_stat;
+
+
+/*---------------------------------------------------------------------------*/
+/* All the stuff below this point is internal to uIP and should not be
+ * used directly by an application or by a device driver.
+ */
+/*---------------------------------------------------------------------------*/
+/* u8_t uip_flags:
+ *
+ * When the application is called, uip_flags will contain the flags
+ * that are defined in this file. Please read below for more
+ * infomation.
+ */
+extern u8_t uip_flags;
+
+/* The following flags may be set in the global variable uip_flags
+   before calling the application callback. The UIP_ACKDATA,
+   UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,
+   whereas the others are mutualy exclusive. Note that these flags
+   should *NOT* be accessed directly, but only through the uIP
+   functions/macros. */
+
+#define UIP_ACKDATA   1     /* Signifies that the outstanding data was
+                              acked and the application should send
+                              out new data instead of retransmitting
+                              the last data. */
+#define UIP_NEWDATA   2     /* Flags the fact that the peer has sent
+                              us new data. */
+#define UIP_REXMIT    4     /* Tells the application to retransmit the
+                              data that was last sent. */
+#define UIP_POLL      8     /* Used for polling the application, to
+                              check if the application has data that
+                              it wants to send. */
+#define UIP_CLOSE     16    /* The remote host has closed the
+                              connection, thus the connection has
+                              gone away. Or the application signals
+                              that it wants to close the
+                              connection. */
+#define UIP_ABORT     32    /* The remote host has aborted the
+                              connection, thus the connection has
+                              gone away. Or the application signals
+                              that it wants to abort the
+                              connection. */
+#define UIP_CONNECTED 64    /* We have got a connection from a remote
+                               host and have set up a new connection
+                               for it, or an active connection has
+                               been successfully established. */
+
+#define UIP_TIMEDOUT  128   /* The connection has been aborted due to
+                              too many retransmissions. */
+
+/* uip_process(flag):
+ *
+ * The actual uIP function which does all the work.
+ */
+void uip_process(u8_t flag);
+
+/* The following flags are passed as an argument to the uip_process()
+   function. They are used to distinguish between the two cases where
+   uip_process() is called. It can be called either because we have
+   incoming data that should be processed, or because the periodic
+   timer has fired. These values are never used directly, but only in
+   the macrose defined in this file. */
+ 
+#define UIP_DATA          1     /* Tells uIP that there is incoming
+                                  data in the uip_buf buffer. The
+                                  length of the data is stored in the
+                                  global variable uip_len. */
+#define UIP_TIMER         2     /* Tells uIP that the periodic timer
+                                  has fired. */
+#define UIP_POLL_REQUEST  3     /* Tells uIP that a connection should
+                                  be polled. */
+#define UIP_UDP_SEND_CONN 4     /* Tells uIP that a UDP datagram
+                                  should be constructed in the
+                                  uip_buf buffer. */
+#if UIP_UDP
+#define UIP_UDP_TIMER     5
+#endif /* UIP_UDP */
+
+/* The TCP states used in the uip_conn->tcpstateflags. */
+#define UIP_CLOSED      0
+#define UIP_SYN_RCVD    1
+#define UIP_SYN_SENT    2
+#define UIP_ESTABLISHED 3
+#define UIP_FIN_WAIT_1  4
+#define UIP_FIN_WAIT_2  5
+#define UIP_CLOSING     6
+#define UIP_TIME_WAIT   7
+#define UIP_LAST_ACK    8
+#define UIP_TS_MASK     15
+  
+#define UIP_STOPPED      16
+
+/* The TCP and IP headers. */
+struct uip_tcpip_hdr {
+#if UIP_CONF_IPV6
+  /* IPv6 header. */
+  u8_t vtc,
+    tcflow;
+  u16_t flow;
+  u8_t len[2];
+  u8_t proto, ttl;
+  uip_ip6addr_t srcipaddr, destipaddr;
+#else /* UIP_CONF_IPV6 */
+  /* IPv4 header. */
+  u8_t vhl,
+    tos,
+    len[2],
+    ipid[2],
+    ipoffset[2],
+    ttl,
+    proto;
+  u16_t ipchksum;
+  u16_t srcipaddr[2],
+    destipaddr[2];
+#endif /* UIP_CONF_IPV6 */
+  
+  /* TCP header. */
+  u16_t srcport,
+    destport;
+  u8_t seqno[4],
+    ackno[4],
+    tcpoffset,
+    flags,
+    wnd[2];
+  u16_t tcpchksum;
+  u8_t urgp[2];
+  u8_t optdata[4];
+};
+
+/* The ICMP and IP headers. */
+struct uip_icmpip_hdr {
+#if UIP_CONF_IPV6
+  /* IPv6 header. */
+  u8_t vtc,
+    tcf;
+  u16_t flow;
+  u8_t len[2];
+  u8_t proto, ttl;
+  uip_ip6addr_t srcipaddr, destipaddr;
+#else /* UIP_CONF_IPV6 */
+  /* IPv4 header. */
+  u8_t vhl,
+    tos,
+    len[2],
+    ipid[2],
+    ipoffset[2],
+    ttl,
+    proto;
+  u16_t ipchksum;
+  u16_t srcipaddr[2],
+    destipaddr[2];
+#endif /* UIP_CONF_IPV6 */
+  
+  /* ICMP (echo) header. */
+  u8_t type, icode;
+  u16_t icmpchksum;
+#if !UIP_CONF_IPV6
+  u16_t id, seqno;
+#else /* !UIP_CONF_IPV6 */
+  u8_t flags, reserved1, reserved2, reserved3;
+  u8_t icmp6data[16];
+  u8_t options[1];
+#endif /* !UIP_CONF_IPV6 */
+};
+
+
+/* The UDP and IP headers. */
+struct uip_udpip_hdr {
+#if UIP_CONF_IPV6
+  /* IPv6 header. */
+  u8_t vtc,
+    tcf;
+  u16_t flow;
+  u8_t len[2];
+  u8_t proto, ttl;
+  uip_ip6addr_t srcipaddr, destipaddr;
+#else /* UIP_CONF_IPV6 */
+  /* IP header. */
+  u8_t vhl,
+    tos,
+    len[2],
+    ipid[2],
+    ipoffset[2],
+    ttl,
+    proto;
+  u16_t ipchksum;
+  u16_t srcipaddr[2],
+    destipaddr[2];
+#endif /* UIP_CONF_IPV6 */
+  
+  /* UDP header. */
+  u16_t srcport,
+    destport;
+  u16_t udplen;
+  u16_t udpchksum;
+};
+
+
+
+/**
+ * The buffer size available for user data in the \ref uip_buf buffer.
+ *
+ * This macro holds the available size for user data in the \ref
+ * uip_buf buffer. The macro is intended to be used for checking
+ * bounds of available user data.
+ *
+ * Example:
+ \code
+ snprintf(uip_appdata, UIP_APPDATA_SIZE, "%u\n", i);
+ \endcode
+ *
+ * \hideinitializer
+ */
+#define UIP_APPDATA_SIZE (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
+
+
+#define UIP_PROTO_ICMP  1
+#define UIP_PROTO_TCP   6
+#define UIP_PROTO_UDP   17
+#define UIP_PROTO_ICMP6 58
+
+/* Header sizes. */
+#if UIP_CONF_IPV6
+#define UIP_IPH_LEN    40
+#else /* UIP_CONF_IPV6 */
+#define UIP_IPH_LEN    20    /* Size of IP header */
+#endif /* UIP_CONF_IPV6 */
+#define UIP_UDPH_LEN    8    /* Size of UDP header */
+#define UIP_TCPH_LEN   20    /* Size of TCP header */
+#define UIP_IPUDPH_LEN (UIP_UDPH_LEN + UIP_IPH_LEN)    /* Size of IP +
+                                                         UDP
+                                                         header */
+#define UIP_IPTCPH_LEN (UIP_TCPH_LEN + UIP_IPH_LEN)    /* Size of IP +
+                                                         TCP
+                                                         header */
+#define UIP_TCPIP_HLEN UIP_IPTCPH_LEN
+
+
+#if UIP_FIXEDADDR
+extern const uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
+#else /* UIP_FIXEDADDR */
+extern uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
+#endif /* UIP_FIXEDADDR */
+
+
+
+/**
+ * Representation of a 48-bit Ethernet address.
+ */
+struct uip_eth_addr {
+  u8_t addr[6];
+};
+
+/**
+ * Calculate the Internet checksum over a buffer.
+ *
+ * The Internet checksum is the one's complement of the one's
+ * complement sum of all 16-bit words in the buffer.
+ *
+ * See RFC1071.
+ *
+ * \param buf A pointer to the buffer over which the checksum is to be
+ * computed.
+ *
+ * \param len The length of the buffer over which the checksum is to
+ * be computed.
+ *
+ * \return The Internet checksum of the buffer.
+ */
+u16_t uip_chksum(u16_t *buf, u16_t len);
+
+/**
+ * Calculate the IP header checksum of the packet header in uip_buf.
+ *
+ * The IP header checksum is the Internet checksum of the 20 bytes of
+ * the IP header.
+ *
+ * \return The IP header checksum of the IP header in the uip_buf
+ * buffer.
+ */
+u16_t uip_ipchksum(void);
+
+/**
+ * Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
+ *
+ * The TCP checksum is the Internet checksum of data contents of the
+ * TCP segment, and a pseudo-header as defined in RFC793.
+ *
+ * \return The TCP checksum of the TCP segment in uip_buf and pointed
+ * to by uip_appdata.
+ */
+u16_t uip_tcpchksum(void);
+
+/**
+ * Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
+ *
+ * The UDP checksum is the Internet checksum of data contents of the
+ * UDP segment, and a pseudo-header as defined in RFC768.
+ *
+ * \return The UDP checksum of the UDP segment in uip_buf and pointed
+ * to by uip_appdata.
+ */
+u16_t uip_udpchksum(void);
+
+
+#endif /* __UIP_H__ */
+
+
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip_arch.h b/Projects/Incomplete/Webserver/Lib/uip/uip_arch.h
new file mode 100644 (file)
index 0000000..71fd84b
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip_arch.h
@@ -0,0 +1,138 @@
+/**
+ * \addtogroup uip
+ * {@
+ */
+
+/**
+ * \defgroup uiparch Architecture specific uIP functions
+ * @{
+ *
+ * The functions in the architecture specific module implement the IP
+ * check sum and 32-bit additions.
+ *
+ * The IP checksum calculation is the most computationally expensive
+ * operation in the TCP/IP stack and it therefore pays off to
+ * implement this in efficient assembler. The purpose of the uip-arch
+ * module is to let the checksum functions to be implemented in
+ * architecture specific assembler.
+ *
+ */
+
+/**
+ * \file
+ * Declarations of architecture specific functions.
+ * \author Adam Dunkels <adam@dunkels.com>
+ */
+
+/*
+ * Copyright (c) 2001, 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.
+ *
+ * $Id: uip_arch.h,v 1.2 2006/06/07 09:15:19 adam Exp $
+ *
+ */
+
+#ifndef __UIP_ARCH_H__
+#define __UIP_ARCH_H__
+
+#include "uip.h"
+
+/**
+ * Carry out a 32-bit addition.
+ *
+ * Because not all architectures for which uIP is intended has native
+ * 32-bit arithmetic, uIP uses an external C function for doing the
+ * required 32-bit additions in the TCP protocol processing. This
+ * function should add the two arguments and place the result in the
+ * global variable uip_acc32.
+ *
+ * \note The 32-bit integer pointed to by the op32 parameter and the
+ * result in the uip_acc32 variable are in network byte order (big
+ * endian).
+ *
+ * \param op32 A pointer to a 4-byte array representing a 32-bit
+ * integer in network byte order (big endian).
+ *
+ * \param op16 A 16-bit integer in host byte order.
+ */
+void uip_add32(u8_t *op32, u16_t op16);
+
+/**
+ * Calculate the Internet checksum over a buffer.
+ *
+ * The Internet checksum is the one's complement of the one's
+ * complement sum of all 16-bit words in the buffer.
+ *
+ * See RFC1071.
+ *
+ * \note This function is not called in the current version of uIP,
+ * but future versions might make use of it.
+ *
+ * \param buf A pointer to the buffer over which the checksum is to be
+ * computed.
+ *
+ * \param len The length of the buffer over which the checksum is to
+ * be computed.
+ *
+ * \return The Internet checksum of the buffer.
+ */
+u16_t uip_chksum(u16_t *buf, u16_t len);
+
+/**
+ * Calculate the IP header checksum of the packet header in uip_buf.
+ *
+ * The IP header checksum is the Internet checksum of the 20 bytes of
+ * the IP header.
+ *
+ * \return The IP header checksum of the IP header in the uip_buf
+ * buffer.
+ */
+u16_t uip_ipchksum(void);
+
+/**
+ * Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
+ *
+ * The TCP checksum is the Internet checksum of data contents of the
+ * TCP segment, and a pseudo-header as defined in RFC793.
+ *
+ * \note The uip_appdata pointer that points to the packet data may
+ * point anywhere in memory, so it is not possible to simply calculate
+ * the Internet checksum of the contents of the uip_buf buffer.
+ *
+ * \return The TCP checksum of the TCP segment in uip_buf and pointed
+ * to by uip_appdata.
+ */
+u16_t uip_tcpchksum(void);
+
+u16_t uip_udpchksum(void);
+
+/** @} */
+/** @} */
+
+#endif /* __UIP_ARCH_H__ */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip_arp.c b/Projects/Incomplete/Webserver/Lib/uip/uip_arp.c
new file mode 100644 (file)
index 0000000..75ade64
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip_arp.c
@@ -0,0 +1,423 @@
+/**
+ * \addtogroup uip
+ * @{
+ */
+
+/**
+ * \defgroup uiparp uIP Address Resolution Protocol
+ * @{
+ *
+ * The Address Resolution Protocol ARP is used for mapping between IP
+ * addresses and link level addresses such as the Ethernet MAC
+ * addresses. ARP uses broadcast queries to ask for the link level
+ * address of a known IP address and the host which is configured with
+ * the IP address for which the query was meant, will respond with its
+ * link level address.
+ *
+ * \note This ARP implementation only supports Ethernet.
+ */
+ 
+/**
+ * \file
+ * Implementation of the ARP Address Resolution Protocol.
+ * \author Adam Dunkels <adam@dunkels.com>
+ *
+ */
+
+/*
+ * 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.
+ *
+ * $Id: uip_arp.c,v 1.8 2006/06/02 23:36:21 adam Exp $
+ *
+ */
+
+
+#include "uip_arp.h"
+
+#include <string.h>
+
+struct arp_hdr {
+  struct uip_eth_hdr ethhdr;
+  u16_t hwtype;
+  u16_t protocol;
+  u8_t hwlen;
+  u8_t protolen;
+  u16_t opcode;
+  struct uip_eth_addr shwaddr;
+  u16_t sipaddr[2];
+  struct uip_eth_addr dhwaddr;
+  u16_t dipaddr[2];
+};
+
+struct ethip_hdr {
+  struct uip_eth_hdr ethhdr;
+  /* IP header. */
+  u8_t vhl,
+    tos,
+    len[2],
+    ipid[2],
+    ipoffset[2],
+    ttl,
+    proto;
+  u16_t ipchksum;
+  u16_t srcipaddr[2],
+    destipaddr[2];
+};
+
+#define ARP_REQUEST 1
+#define ARP_REPLY   2
+
+#define ARP_HWTYPE_ETH 1
+
+struct arp_entry {
+  u16_t ipaddr[2];
+  struct uip_eth_addr ethaddr;
+  u8_t time;
+};
+
+static const struct uip_eth_addr broadcast_ethaddr =
+  {{0xff,0xff,0xff,0xff,0xff,0xff}};
+static const u16_t broadcast_ipaddr[2] = {0xffff,0xffff};
+
+static struct arp_entry arp_table[UIP_ARPTAB_SIZE];
+static u16_t ipaddr[2];
+static u8_t i, c;
+
+static u8_t arptime;
+static u8_t tmpage;
+
+#define BUF   ((struct arp_hdr *)&uip_buf[0])
+#define IPBUF ((struct ethip_hdr *)&uip_buf[0])
+/*-----------------------------------------------------------------------------------*/
+/**
+ * Initialize the ARP module.
+ *
+ */
+/*-----------------------------------------------------------------------------------*/
+void
+uip_arp_init(void)
+{
+  for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
+    memset(arp_table[i].ipaddr, 0, 4);
+  }
+}
+/*-----------------------------------------------------------------------------------*/
+/**
+ * Periodic ARP processing function.
+ *
+ * This function performs periodic timer processing in the ARP module
+ * and should be called at regular intervals. The recommended interval
+ * is 10 seconds between the calls.
+ *
+ */
+/*-----------------------------------------------------------------------------------*/
+void
+uip_arp_timer(void)
+{
+  struct arp_entry *tabptr;
+  
+  ++arptime;
+  for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
+    tabptr = &arp_table[i];
+    if((tabptr->ipaddr[0] | tabptr->ipaddr[1]) != 0 &&
+       arptime - tabptr->time >= UIP_ARP_MAXAGE) {
+      memset(tabptr->ipaddr, 0, 4);
+    }
+  }
+
+}
+/*-----------------------------------------------------------------------------------*/
+static void
+uip_arp_update(u16_t *ipaddr, struct uip_eth_addr *ethaddr)
+{
+  register struct arp_entry *tabptr;
+  /* Walk through the ARP mapping table and try to find an entry to
+     update. If none is found, the IP -> MAC address mapping is
+     inserted in the ARP table. */
+  for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
+
+    tabptr = &arp_table[i];
+    /* Only check those entries that are actually in use. */
+    if(tabptr->ipaddr[0] != 0 &&
+       tabptr->ipaddr[1] != 0) {
+
+      /* Check if the source IP address of the incoming packet matches
+         the IP address in this ARP table entry. */
+      if(ipaddr[0] == tabptr->ipaddr[0] &&
+        ipaddr[1] == tabptr->ipaddr[1]) {
+        
+       /* An old entry found, update this and return. */
+       memcpy(tabptr->ethaddr.addr, ethaddr->addr, 6);
+       tabptr->time = arptime;
+
+       return;
+      }
+    }
+  }
+
+  /* If we get here, no existing ARP table entry was found, so we
+     create one. */
+
+  /* First, we try to find an unused entry in the ARP table. */
+  for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
+    tabptr = &arp_table[i];
+    if(tabptr->ipaddr[0] == 0 &&
+       tabptr->ipaddr[1] == 0) {
+      break;
+    }
+  }
+
+  /* If no unused entry is found, we try to find the oldest entry and
+     throw it away. */
+  if(i == UIP_ARPTAB_SIZE) {
+    tmpage = 0;
+    c = 0;
+    for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
+      tabptr = &arp_table[i];
+      if(arptime - tabptr->time > tmpage) {
+       tmpage = arptime - tabptr->time;
+       c = i;
+      }
+    }
+    i = c;
+    tabptr = &arp_table[i];
+  }
+
+  /* Now, i is the ARP table entry which we will fill with the new
+     information. */
+  memcpy(tabptr->ipaddr, ipaddr, 4);
+  memcpy(tabptr->ethaddr.addr, ethaddr->addr, 6);
+  tabptr->time = arptime;
+}
+/*-----------------------------------------------------------------------------------*/
+/**
+ * ARP processing for incoming IP packets
+ *
+ * This function should be called by the device driver when an IP
+ * packet has been received. The function will check if the address is
+ * in the ARP cache, and if so the ARP cache entry will be
+ * refreshed. If no ARP cache entry was found, a new one is created.
+ *
+ * This function expects an IP packet with a prepended Ethernet header
+ * in the uip_buf[] buffer, and the length of the packet in the global
+ * variable uip_len.
+ */
+/*-----------------------------------------------------------------------------------*/
+#if 0
+void
+uip_arp_ipin(void)
+{
+  uip_len -= sizeof(struct uip_eth_hdr);
+       
+  /* Only insert/update an entry if the source IP address of the
+     incoming IP packet comes from a host on the local network. */
+  if((IPBUF->srcipaddr[0] & uip_netmask[0]) !=
+     (uip_hostaddr[0] & uip_netmask[0])) {
+    return;
+  }
+  if((IPBUF->srcipaddr[1] & uip_netmask[1]) !=
+     (uip_hostaddr[1] & uip_netmask[1])) {
+    return;
+  }
+  uip_arp_update(IPBUF->srcipaddr, &(IPBUF->ethhdr.src));
+  
+  return;
+}
+#endif /* 0 */
+/*-----------------------------------------------------------------------------------*/
+/**
+ * ARP processing for incoming ARP packets.
+ *
+ * This function should be called by the device driver when an ARP
+ * packet has been received. The function will act differently
+ * depending on the ARP packet type: if it is a reply for a request
+ * that we previously sent out, the ARP cache will be filled in with
+ * the values from the ARP reply. If the incoming ARP packet is an ARP
+ * request for our IP address, an ARP reply packet is created and put
+ * into the uip_buf[] buffer.
+ *
+ * When the function returns, the value of the global variable uip_len
+ * indicates whether the device driver should send out a packet or
+ * not. If uip_len is zero, no packet should be sent. If uip_len is
+ * non-zero, it contains the length of the outbound packet that is
+ * present in the uip_buf[] buffer.
+ *
+ * This function expects an ARP packet with a prepended Ethernet
+ * header in the uip_buf[] buffer, and the length of the packet in the
+ * global variable uip_len.
+ */
+/*-----------------------------------------------------------------------------------*/
+void
+uip_arp_arpin(void)
+{
+  
+  if(uip_len < sizeof(struct arp_hdr)) {
+    uip_len = 0;
+    return;
+  }
+  uip_len = 0;
+  
+  switch(BUF->opcode) {
+  case HTONS(ARP_REQUEST):
+    /* ARP request. If it asked for our address, we send out a
+       reply. */
+    if(uip_ipaddr_cmp(BUF->dipaddr, uip_hostaddr)) {
+      /* First, we register the one who made the request in our ARP
+        table, since it is likely that we will do more communication
+        with this host in the future. */
+      uip_arp_update(BUF->sipaddr, &BUF->shwaddr);
+      
+      /* The reply opcode is 2. */
+      BUF->opcode = HTONS(2);
+
+      memcpy(BUF->dhwaddr.addr, BUF->shwaddr.addr, 6);
+      memcpy(BUF->shwaddr.addr, uip_ethaddr.addr, 6);
+      memcpy(BUF->ethhdr.src.addr, uip_ethaddr.addr, 6);
+      memcpy(BUF->ethhdr.dest.addr, BUF->dhwaddr.addr, 6);
+      
+      BUF->dipaddr[0] = BUF->sipaddr[0];
+      BUF->dipaddr[1] = BUF->sipaddr[1];
+      BUF->sipaddr[0] = uip_hostaddr[0];
+      BUF->sipaddr[1] = uip_hostaddr[1];
+
+      BUF->ethhdr.type = HTONS(UIP_ETHTYPE_ARP);
+      uip_len = sizeof(struct arp_hdr);
+    }
+    break;
+  case HTONS(ARP_REPLY):
+    /* ARP reply. We insert or update the ARP table if it was meant
+       for us. */
+    if(uip_ipaddr_cmp(BUF->dipaddr, uip_hostaddr)) {
+      uip_arp_update(BUF->sipaddr, &BUF->shwaddr);
+    }
+    break;
+  }
+
+  return;
+}
+/*-----------------------------------------------------------------------------------*/
+/**
+ * Prepend Ethernet header to an outbound IP packet and see if we need
+ * to send out an ARP request.
+ *
+ * This function should be called before sending out an IP packet. The
+ * function checks the destination IP address of the IP packet to see
+ * what Ethernet MAC address that should be used as a destination MAC
+ * address on the Ethernet.
+ *
+ * If the destination IP address is in the local network (determined
+ * by logical ANDing of netmask and our IP address), the function
+ * checks the ARP cache to see if an entry for the destination IP
+ * address is found. If so, an Ethernet header is prepended and the
+ * function returns. If no ARP cache entry is found for the
+ * destination IP address, the packet in the uip_buf[] is replaced by
+ * an ARP request packet for the IP address. The IP packet is dropped
+ * and it is assumed that they higher level protocols (e.g., TCP)
+ * eventually will retransmit the dropped packet.
+ *
+ * If the destination IP address is not on the local network, the IP
+ * address of the default router is used instead.
+ *
+ * When the function returns, a packet is present in the uip_buf[]
+ * buffer, and the length of the packet is in the global variable
+ * uip_len.
+ */
+/*-----------------------------------------------------------------------------------*/
+void
+uip_arp_out(void)
+{
+  struct arp_entry *tabptr;
+  
+  /* Find the destination IP address in the ARP table and construct
+     the Ethernet header. If the destination IP addres isn't on the
+     local network, we use the default router's IP address instead.
+
+     If not ARP table entry is found, we overwrite the original IP
+     packet with an ARP request for the IP address. */
+
+  /* First check if destination is a local broadcast. */
+  if(uip_ipaddr_cmp(IPBUF->destipaddr, broadcast_ipaddr)) {
+    memcpy(IPBUF->ethhdr.dest.addr, broadcast_ethaddr.addr, 6);
+  } else {
+    /* Check if the destination address is on the local network. */
+    if(!uip_ipaddr_maskcmp(IPBUF->destipaddr, uip_hostaddr, uip_netmask)) {
+      /* Destination address was not on the local network, so we need to
+        use the default router's IP address instead of the destination
+        address when determining the MAC address. */
+      uip_ipaddr_copy(ipaddr, uip_draddr);
+    } else {
+      /* Else, we use the destination IP address. */
+      uip_ipaddr_copy(ipaddr, IPBUF->destipaddr);
+    }
+      
+    for(i = 0; i < UIP_ARPTAB_SIZE; ++i) {
+      tabptr = &arp_table[i];
+      if(uip_ipaddr_cmp(ipaddr, tabptr->ipaddr)) {
+       break;
+      }
+    }
+
+    if(i == UIP_ARPTAB_SIZE) {
+      /* The destination address was not in our ARP table, so we
+        overwrite the IP packet with an ARP request. */
+
+      memset(BUF->ethhdr.dest.addr, 0xff, 6);
+      memset(BUF->dhwaddr.addr, 0x00, 6);
+      memcpy(BUF->ethhdr.src.addr, uip_ethaddr.addr, 6);
+      memcpy(BUF->shwaddr.addr, uip_ethaddr.addr, 6);
+    
+      uip_ipaddr_copy(BUF->dipaddr, ipaddr);
+      uip_ipaddr_copy(BUF->sipaddr, uip_hostaddr);
+      BUF->opcode = HTONS(ARP_REQUEST); /* ARP request. */
+      BUF->hwtype = HTONS(ARP_HWTYPE_ETH);
+      BUF->protocol = HTONS(UIP_ETHTYPE_IP);
+      BUF->hwlen = 6;
+      BUF->protolen = 4;
+      BUF->ethhdr.type = HTONS(UIP_ETHTYPE_ARP);
+
+      uip_appdata = &uip_buf[UIP_TCPIP_HLEN + UIP_LLH_LEN];
+    
+      uip_len = sizeof(struct arp_hdr);
+      return;
+    }
+
+    /* Build an ethernet header. */
+    memcpy(IPBUF->ethhdr.dest.addr, tabptr->ethaddr.addr, 6);
+  }
+  memcpy(IPBUF->ethhdr.src.addr, uip_ethaddr.addr, 6);
+  
+  IPBUF->ethhdr.type = HTONS(UIP_ETHTYPE_IP);
+
+  uip_len += sizeof(struct uip_eth_hdr);
+}
+/*-----------------------------------------------------------------------------------*/
+
+/** @} */
+/** @} */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uip_arp.h b/Projects/Incomplete/Webserver/Lib/uip/uip_arp.h
new file mode 100644 (file)
index 0000000..e32594d
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uip_arp.h
@@ -0,0 +1,144 @@
+/**
+ * \addtogroup uip
+ * @{
+ */
+
+/**
+ * \addtogroup uiparp
+ * @{
+ */
+ 
+/**
+ * \file
+ * Macros and definitions for the ARP module.
+ * \author Adam Dunkels <adam@dunkels.com>
+ */
+  
+
+/*
+ * 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.
+ *
+ * $Id: uip_arp.h,v 1.5 2006/06/11 21:46:39 adam Exp $
+ *
+ */
+
+#ifndef __UIP_ARP_H__
+#define __UIP_ARP_H__
+
+#include "uip.h"
+
+
+extern struct uip_eth_addr uip_ethaddr;
+
+/**
+ * The Ethernet header.
+ */
+struct uip_eth_hdr {
+  struct uip_eth_addr dest;
+  struct uip_eth_addr src;
+  u16_t type;
+};
+
+#define UIP_ETHTYPE_ARP 0x0806
+#define UIP_ETHTYPE_IP  0x0800
+#define UIP_ETHTYPE_IP6 0x86dd
+
+
+/* The uip_arp_init() function must be called before any of the other
+   ARP functions. */
+void uip_arp_init(void);
+
+/* The uip_arp_ipin() function should be called whenever an IP packet
+   arrives from the Ethernet. This function refreshes the ARP table or
+   inserts a new mapping if none exists. The function assumes that an
+   IP packet with an Ethernet header is present in the uip_buf buffer
+   and that the length of the packet is in the uip_len variable. */
+/*void uip_arp_ipin(void);*/
+#define uip_arp_ipin()
+
+/* The uip_arp_arpin() should be called when an ARP packet is received
+   by the Ethernet driver. This function also assumes that the
+   Ethernet frame is present in the uip_buf buffer. When the
+   uip_arp_arpin() function returns, the contents of the uip_buf
+   buffer should be sent out on the Ethernet if the uip_len variable
+   is > 0. */
+void uip_arp_arpin(void);
+
+/* The uip_arp_out() function should be called when an IP packet
+   should be sent out on the Ethernet. This function creates an
+   Ethernet header before the IP header in the uip_buf buffer. The
+   Ethernet header will have the correct Ethernet MAC destination
+   address filled in if an ARP table entry for the destination IP
+   address (or the IP address of the default router) is present. If no
+   such table entry is found, the IP packet is overwritten with an ARP
+   request and we rely on TCP to retransmit the packet that was
+   overwritten. In any case, the uip_len variable holds the length of
+   the Ethernet frame that should be transmitted. */
+void uip_arp_out(void);
+
+/* The uip_arp_timer() function should be called every ten seconds. It
+   is responsible for flushing old entries in the ARP table. */
+void uip_arp_timer(void);
+
+/** @} */
+
+/**
+ * \addtogroup uipconffunc
+ * @{
+ */
+
+
+/**
+ * Specifiy the Ethernet MAC address.
+ *
+ * The ARP code needs to know the MAC address of the Ethernet card in
+ * order to be able to respond to ARP queries and to generate working
+ * Ethernet headers.
+ *
+ * \note This macro only specifies the Ethernet MAC address to the ARP
+ * code. It cannot be used to change the MAC address of the Ethernet
+ * card.
+ *
+ * \param eaddr A pointer to a struct uip_eth_addr containing the
+ * Ethernet MAC address of the Ethernet card.
+ *
+ * \hideinitializer
+ */
+#define uip_setethaddr(eaddr) do {uip_ethaddr.addr[0] = eaddr.addr[0]; \
+                              uip_ethaddr.addr[1] = eaddr.addr[1];\
+                              uip_ethaddr.addr[2] = eaddr.addr[2];\
+                              uip_ethaddr.addr[3] = eaddr.addr[3];\
+                              uip_ethaddr.addr[4] = eaddr.addr[4];\
+                              uip_ethaddr.addr[5] = eaddr.addr[5];} while(0)
+
+/** @} */
+/** @} */
+
+#endif /* __UIP_ARP_H__ */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uiplib.c b/Projects/Incomplete/Webserver/Lib/uip/uiplib.c
new file mode 100644 (file)
index 0000000..cb5af2c
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uiplib.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2004, Adam Dunkels and the Swedish Institute of
+ * Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This file is part of the uIP TCP/IP stack
+ *
+ * $Id: uiplib.c,v 1.2 2006/06/12 08:00:31 adam Exp $
+ *
+ */
+
+
+#include "uip.h"
+#include "uiplib.h"
+
+
+/*-----------------------------------------------------------------------------------*/
+unsigned char
+uiplib_ipaddrconv(char *addrstr, unsigned char *ipaddr)
+{
+  unsigned char tmp;
+  char c;
+  unsigned char i, j;
+
+  tmp = 0;
+  
+  for(i = 0; i < 4; ++i) {
+    j = 0;
+    do {
+      c = *addrstr;
+      ++j;
+      if(j > 4) {
+       return 0;
+      }
+      if(c == '.' || c == 0) {
+       *ipaddr = tmp;
+       ++ipaddr;
+       tmp = 0;
+      } else if(c >= '0' && c <= '9') {
+       tmp = (tmp * 10) + (c - '0');
+      } else {
+       return 0;
+      }
+      ++addrstr;
+    } while(c != '.' && c != 0);
+  }
+  return 1;
+}
+
+/*-----------------------------------------------------------------------------------*/

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uiplib.h b/Projects/Incomplete/Webserver/Lib/uip/uiplib.h
new file mode 100644 (file)
index 0000000..c676849
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uiplib.h
@@ -0,0 +1,71 @@
+/**
+ * \file
+ * Various uIP library functions.
+ * \author
+ * Adam Dunkels <adam@sics.se>
+ *
+ */
+
+/*
+ * Copyright (c) 2002, 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
+ *
+ * $Id: uiplib.h,v 1.1 2006/06/07 09:15:19 adam Exp $
+ *
+ */
+#ifndef __UIPLIB_H__
+#define __UIPLIB_H__
+
+/**
+ * \addtogroup uipconvfunc
+ * @{
+ */
+
+/**
+ * Convert a textual representation of an IP address to a numerical representation.
+ *
+ * This function takes a textual representation of an IP address in
+ * the form a.b.c.d and converts it into a 4-byte array that can be
+ * used by other uIP functions.
+ *
+ * \param addrstr A pointer to a string containing the IP address in
+ * textual form.
+ *
+ * \param addr A pointer to a 4-byte array that will be filled in with
+ * the numerical representation of the address.
+ *
+ * \retval 0 If the IP address could not be parsed.
+ * \retval Non-zero If the IP address was parsed.
+ */
+unsigned char uiplib_ipaddrconv(char *addrstr, unsigned char *addr);
+
+/** @} */
+
+#endif /* __UIPLIB_H__ */

diff --git a/Projects/Incomplete/Webserver/Lib/uip/uipopt.h b/Projects/Incomplete/Webserver/Lib/uip/uipopt.h
new file mode 100644 (file)
index 0000000..b1ef8e5
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Lib/uip/uipopt.h
@@ -0,0 +1,539 @@
+/**
+ * \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 Most of the configuration options in the uipopt.h should not
+ * be changed, but rather the per-project uip-conf.h file.
+ */
+
+/**
+ * \file
+ * Configuration options for uIP.
+ * \author Adam Dunkels <adam@dunkels.com>
+ *
+ * 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.
+ *
+ * $Id: uipopt.h,v 1.4 2006/06/12 08:00:31 adam Exp $
+ *
+ */
+
+#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 "uip-conf.h"
+
+/*------------------------------------------------------------------------------*/
+
+/**
+ * \name 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 appliciable only
+ * if uIP should be run over Ethernet.
+ *
+ * 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 asignment.
+ *
+ * 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
+
+/** @} */
+/*------------------------------------------------------------------------------*/
+/**
+ * \name IP configuration options
+ * @{
+ *
+ */
+/**
+ * The IP TTL (time to live) of IP packets sent by uIP.
+ *
+ * This should normally not be changed.
+ */
+#define UIP_TTL         64
+
+/**
+ * Turn on support for IP packet reassembly.
+ *
+ * uIP supports reassembly of fragmented IP packets. This features
+ * requires an additonal 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
+ */
+#define UIP_REASSEMBLY 0
+
+/**
+ * The maximum time an IP fragment should wait in the reassembly
+ * buffer before it is dropped.
+ *
+ */
+#define UIP_REASS_MAXAGE 40
+
+/** @} */
+
+/*------------------------------------------------------------------------------*/
+/**
+ * \name UDP configuration options
+ * @{
+ */
+
+/**
+ * Toggles wether 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           0
+#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 0
+#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
+ */
+
+
+/** @} */
+/*------------------------------------------------------------------------------*/
+/**
+ * \name TCP configuration options
+ * @{
+ */
+
+/**
+ * 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 configration
+ * option can be turned off to reduce the code size of uIP.
+ *
+ * \hideinitializer
+ */
+#define UIP_ACTIVE_OPEN 1
+
+/**
+ * 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 approximatly 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.
+ */
+#define UIP_TCP_MSS     (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
+
+/**
+ * The size of the advertised receiver's window.
+ *
+ * Should be set low (i.e., to the size of the uip_buf buffer) is 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 configiration option has no real implication, and it should be
+ * left untouched.
+ */
+#define UIP_TIME_WAIT_TIMEOUT 120
+
+
+/** @} */
+/*------------------------------------------------------------------------------*/
+/**
+ * \name 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 maxium 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
+
+/** @} */
+
+/*------------------------------------------------------------------------------*/
+
+/**
+ * \name 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 1500 bytes. Lower size results in lower
+ * TCP throughput, larger size results in higher TCP throughput.
+ *
+ * \hideinitializer
+ */
+#ifndef UIP_CONF_BUFFER_SIZE
+#define UIP_BUFSIZE     400
+#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.
+ *
+ * \hideinitializer
+ */
+#ifdef UIP_CONF_LLH_LEN
+#define UIP_LLH_LEN UIP_CONF_LLH_LEN
+#else /* UIP_CONF_LLH_LEN */
+#define UIP_LLH_LEN     14
+#endif /* UIP_CONF_LLH_LEN */
+
+/** @} */
+/*------------------------------------------------------------------------------*/
+/**
+ * \name 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 BIG_ENDIAN (Motorola byte order) or
+ * 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 */
+
+/** @} */
+/*------------------------------------------------------------------------------*/
+
+/**
+ * \name Appication 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 {
+  u8_t state;
+  u16_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__ */

diff --git a/Projects/Incomplete/Webserver/Webserver.c b/Projects/Incomplete/Webserver/Webserver.c
new file mode 100644 (file)
index 0000000..e6ef9f0
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Webserver.c
@@ -0,0 +1,330 @@
+/*\r
+             LUFA Library\r
+     Copyright (C) Dean Camera, 2010.\r
+              \r
+  dean [at] fourwalledcubicle [dot] com\r
+      www.fourwalledcubicle.com\r
+*/\r
+\r
+/*\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r
+  software without specific, written prior permission.\r
+\r
+  The author disclaim all warranties with regard to this\r
+  software, including all implied warranties of merchantability\r
+  and fitness.  In no event shall the author be liable for any\r
+  special, indirect or consequential damages or any damages\r
+  whatsoever resulting from loss of use, data or profits, whether\r
+  in an action of contract, negligence or other tortious action,\r
+  arising out of or in connection with the use or performance of\r
+  this software.\r
+*/\r
+\r
+/** \file\r
+ *\r
+ *  Main source file for the Webserver project. This file contains the main tasks of\r
+ *  the demo and is responsible for the initial application hardware configuration.\r
+ */\r
+ \r
+#include "Webserver.h"\r
+\r
+/** LUFA RNDIS Class driver interface configuration and state information. This structure is\r
+ *  passed to all RNDIS Class driver functions, so that multiple instances of the same class\r
+ *  within a device can be differentiated from one another.\r
+ */\r
+USB_ClassInfo_RNDIS_Host_t Ethernet_RNDIS_Interface =\r
+       {\r
+               .Config =\r
+                       {\r
+                               .DataINPipeNumber           = 1,\r
+                               .DataINPipeDoubleBank       = false,\r
+\r
+                               .DataOUTPipeNumber          = 2,\r
+                               .DataOUTPipeDoubleBank      = false,\r
+\r
+                               .NotificationPipeNumber     = 3,\r
+                               .NotificationPipeDoubleBank = false,\r
+                               \r
+                               .HostMaxPacketSize          = UIP_CONF_BUFFER_SIZE,\r
+                       },\r
+       };\r
+\r
+volatile uint8_t uIPManagementTimeout;\r
+\r
+/** ISR for the management of the connection management timeout counter */\r
+ISR(TIMER0_COMPA_vect, ISR_BLOCK)\r
+{\r
+       if (uIPManagementTimeout)\r
+         uIPManagementTimeout--;\r
+}\r
+\r
+void TCPCallback(void)\r
+{\r
+       printf("Callback!\r\n");\r
+}\r
+       \r
+/** Main program entry point. This routine configures the hardware required by the application, then\r
+ *  enters a loop to run the application tasks in sequence.\r
+ */\r
+int main(void)\r
+{\r
+       SetupHardware();\r
+\r
+       puts_P(PSTR(ESC_FG_CYAN "RNDIS Host Demo running.\r\n" ESC_FG_WHITE));\r
+\r
+       LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+\r
+       for (;;)\r
+       {\r
+               switch (USB_HostState)\r
+               {\r
+                       case HOST_STATE_Addressed:\r
+                               LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
+                       \r
+                               uint16_t ConfigDescriptorSize;\r
+                               uint8_t  ConfigDescriptorData[512];\r
+\r
+                               if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,\r
+                                                                      sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)\r
+                               {\r
+                                       printf("Error Retrieving Configuration Descriptor.\r\n");\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
+\r
+                               if (RNDIS_Host_ConfigurePipes(&Ethernet_RNDIS_Interface,\r
+                                                             ConfigDescriptorSize, ConfigDescriptorData) != RNDIS_ENUMERROR_NoError)\r
+                               {\r
+                                       printf("Attached Device Not a Valid RNDIS Class Device.\r\n");\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
+                               \r
+                               if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)\r
+                               {\r
+                                       printf("Error Setting Device Configuration.\r\n");\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
+                               \r
+                               if (RNDIS_Host_InitializeDevice(&Ethernet_RNDIS_Interface) != HOST_SENDCONTROL_Successful)\r
+                               {\r
+                                       printf("Error Initializing Device.\r\n");\r
+\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;                  \r
+                               }\r
+                               \r
+                               printf("Device Max Transfer Size: %lu bytes.\r\n", Ethernet_RNDIS_Interface.State.DeviceMaxPacketSize);\r
+                               \r
+                               uint32_t PacketFilter = (REMOTE_NDIS_PACKET_DIRECTED | REMOTE_NDIS_PACKET_BROADCAST | REMOTE_NDIS_PACKET_ALL_MULTICAST);\r
+                               if (RNDIS_Host_SetRNDISProperty(&Ethernet_RNDIS_Interface, OID_GEN_CURRENT_PACKET_FILTER,\r
+                                                               &PacketFilter, sizeof(PacketFilter)) != HOST_SENDCONTROL_Successful)\r
+                               {\r
+                                       printf("Error Setting Device Packet Filter.\r\n");\r
+\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
+                               \r
+                               struct uip_eth_addr MACAddress;\r
+                               if (RNDIS_Host_QueryRNDISProperty(&Ethernet_RNDIS_Interface, OID_802_3_CURRENT_ADDRESS,\r
+                                                                 &MACAddress, sizeof(MACAddress)) != HOST_SENDCONTROL_Successful)\r
+                               {\r
+                                       printf("Error Getting MAC Address.\r\n");\r
+\r
+                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;\r
+                               }\r
+\r
+                               printf("MAC Address: 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\r\n",\r
+                                       MACAddress.addr[0], MACAddress.addr[1], MACAddress.addr[2],\r
+                                       MACAddress.addr[3], MACAddress.addr[4], MACAddress.addr[5]);\r
+\r
+                               uip_setethaddr(MACAddress);\r
+                               \r
+                               printf("RNDIS Device Enumerated.\r\n");\r
+                               USB_HostState = HOST_STATE_Configured;\r
+                               break;\r
+                       case HOST_STATE_Configured:\r
+                               ProcessIncommingPacket();\r
+                               ManageConnections();\r
+                       \r
+                               break;\r
+               }\r
+       \r
+               RNDIS_Host_USBTask(&Ethernet_RNDIS_Interface);\r
+               USB_USBTask();\r
+       }\r
+}\r
+\r
+void ProcessIncommingPacket(void)\r
+{\r
+       if (RNDIS_Host_IsPacketReceived(&Ethernet_RNDIS_Interface))\r
+       {\r
+               LEDs_SetAllLEDs(LEDMASK_USB_BUSY);\r
+\r
+               /* Read the incomming packet straight into the UIP packet buffer */\r
+               RNDIS_Host_ReadPacket(&Ethernet_RNDIS_Interface, &uip_buf, &uip_len);\r
+               \r
+               printf("RECEIVED PACKET (%d):\r\n", uip_len);\r
+               for (uint16_t i = 0; i < uip_len; i++)\r
+                 printf("0x%02X ", uip_buf[i]);\r
+               printf("\r\n\r\n");\r
+\r
+               #define BUF ((struct uip_eth_hdr *)&uip_buf[0])\r
+\r
+               if (BUF->type == HTONS(UIP_ETHTYPE_IP))\r
+               {\r
+                       /* Filter packet by MAC destination */\r
+                       uip_arp_ipin();\r
+\r
+                       /* Process incomming packet */\r
+                       uip_input();\r
+\r
+                       /* Add destination MAC to outgoing packet */\r
+                       if (uip_len > 0)\r
+                         uip_arp_out();\r
+               }\r
+               else if (BUF->type == HTONS(UIP_ETHTYPE_ARP))\r
+               {\r
+                       /* Process ARP packet */\r
+                       uip_arp_arpin();\r
+               }\r
+\r
+               /* If a response was generated, send it */\r
+               if (uip_len > 0)\r
+                 RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf, uip_len);\r
+\r
+               printf("SENT PACKET (%d):\r\n", uip_len);\r
+               for (uint16_t i = 0; i < uip_len; i++)\r
+                 printf("0x%02X ", uip_buf[i]);\r
+               printf("\r\n\r\n");\r
+\r
+               LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
+       }\r
+}\r
+\r
+void ManageConnections(void)\r
+{\r
+       if (!(uIPManagementTimeout))\r
+       {\r
+               LEDs_SetAllLEDs(LEDMASK_USB_BUSY);\r
+               \r
+               for (uint8_t i = 0; i < UIP_CONNS; i++)\r
+               {\r
+                       /* Run periodic connection management for each connection */\r
+                       uip_periodic(i);\r
+\r
+                       /* If a response was generated, send it */\r
+                       if (uip_len > 0)\r
+                         RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, &uip_buf, uip_len);\r
+               }\r
+               \r
+               uip_arp_timer();\r
+               \r
+               uIPManagementTimeout = 250;\r
+\r
+               LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
+       }\r
+}\r
+\r
+/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
+void SetupHardware(void)\r
+{\r
+       /* Disable watchdog if enabled by bootloader/fuses */\r
+       MCUSR &= ~(1 << WDRF);\r
+       wdt_disable();\r
+\r
+       /* Disable clock division */\r
+       clock_prescale_set(clock_div_1);\r
+\r
+       /* Hardware Initialization */\r
+       SerialStream_Init(9600, false);\r
+       LEDs_Init();\r
+       USB_Init();\r
+\r
+       /* Millisecond timer initialization for managing the command timeout counter */\r
+       OCR0A  = ((F_CPU / 64) / 1000);\r
+       TCCR0A = (1 << WGM01);\r
+       TCCR0B = ((1 << CS01) | (1 << CS00));\r
+       \r
+       /* uIP Stack Initialization */\r
+       uip_init();\r
+\r
+       uip_ipaddr_t IPAddress, Netmask, GatewayIPAddress;\r
+       uip_ipaddr(&IPAddress, 192, 168, 1, 10);\r
+       uip_ipaddr(&Netmask, 0xFF, 0xFF, 0xFF, 0x00);\r
+       uip_ipaddr(&GatewayIPAddress, 192, 168, 1, 1);\r
+       uip_sethostaddr(&IPAddress);\r
+       uip_setnetmask(&Netmask);\r
+       uip_setdraddr(&GatewayIPAddress);\r
+       \r
+       /* HTTP Webserver Initialization */\r
+       uip_listen(HTONS(80));\r
+}\r
+\r
+/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and\r
+ *  starts the library USB task to begin the enumeration and USB management process.\r
+ */\r
+void EVENT_USB_Host_DeviceAttached(void)\r
+{\r
+       puts_P(PSTR("Device Attached.\r\n"));\r
+       LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
+}\r
+\r
+/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and\r
+ *  stops the library USB task management process.\r
+ */\r
+void EVENT_USB_Host_DeviceUnattached(void)\r
+{\r
+       puts_P(PSTR("\r\nDevice Unattached.\r\n"));\r
+       LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+}\r
+\r
+/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully\r
+ *  enumerated by the host and is now ready to be used by the application.\r
+ */\r
+void EVENT_USB_Host_DeviceEnumerationComplete(void)\r
+{\r
+       LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
+}\r
+\r
+/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */\r
+void EVENT_USB_Host_HostError(const uint8_t ErrorCode)\r
+{\r
+       USB_ShutDown();\r
+\r
+       printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"\r
+                                " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);\r
+\r
+       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+       for(;;);\r
+}\r
+\r
+/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while\r
+ *  enumerating an attached USB device.\r
+ */\r
+void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)\r
+{\r
+       printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"\r
+                                " -- Error Code %d\r\n"\r
+                                " -- Sub Error Code %d\r\n"\r
+                                " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);\r
+       \r
+       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+}\r

diff --git a/Projects/Incomplete/Webserver/Webserver.h b/Projects/Incomplete/Webserver/Webserver.h
new file mode 100644 (file)
index 0000000..9da29d6
--- /dev/null
+++ b/Projects/Incomplete/Webserver/Webserver.h
@@ -0,0 +1,84 @@
+/*\r
+             LUFA Library\r
+     Copyright (C) Dean Camera, 2010.\r
+              \r
+  dean [at] fourwalledcubicle [dot] com\r
+      www.fourwalledcubicle.com\r
+*/\r
+\r
+/*\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r
+  software without specific, written prior permission.\r
+\r
+  The author disclaim all warranties with regard to this\r
+  software, including all implied warranties of merchantability\r
+  and fitness.  In no event shall the author be liable for any\r
+  special, indirect or consequential damages or any damages\r
+  whatsoever resulting from loss of use, data or profits, whether\r
+  in an action of contract, negligence or other tortious action,\r
+  arising out of or in connection with the use or performance of\r
+  this software.\r
+*/\r
+\r
+/** \file\r
+ *\r
+ *  Header file for RNDISEthernetHost.c.\r
+ */\r
+\r
+#ifndef _RNDIS_HOST_H_\r
+#define _RNDIS_HOST_H_\r
+\r
+       /* Includes: */\r
+               #include <avr/io.h>\r
+               #include <avr/wdt.h>\r
+               #include <avr/pgmspace.h>\r
+               #include <avr/power.h>\r
+               #include <stdio.h>\r
+\r
+               #include <LUFA/Version.h>\r
+               #include <LUFA/Drivers/Misc/TerminalCodes.h>\r
+               #include <LUFA/Drivers/Peripheral/SerialStream.h>\r
+               #include <LUFA/Drivers/Board/LEDs.h>\r
+               #include <LUFA/Drivers/USB/USB.h>\r
+               #include <LUFA/Drivers/USB/Class/RNDIS.h>\r
+               \r
+               #include <uip.h>\r
+               #include <uip_arp.h>\r
+               \r
+       /* Macros: */\r
+               /** LED mask for the library LED driver, to indicate that the USB interface is not ready. */\r
+               #define LEDMASK_USB_NOTREADY      LEDS_LED1\r
+\r
+               /** LED mask for the library LED driver, to indicate that the USB interface is enumerating. */\r
+               #define LEDMASK_USB_ENUMERATING  (LEDS_LED2 | LEDS_LED3)\r
+\r
+               /** LED mask for the library LED driver, to indicate that the USB interface is ready. */\r
+               #define LEDMASK_USB_READY        (LEDS_LED2 | LEDS_LED4)\r
+\r
+               /** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */\r
+               #define LEDMASK_USB_ERROR        (LEDS_LED1 | LEDS_LED3)\r
+               \r
+               /** LED mask for the library LED driver, to indicate that the USB interface is busy. */\r
+               #define LEDMASK_USB_BUSY          LEDS_LED2\r
+\r
+       /* Function Prototypes: */\r
+               void SetupHardware(void);\r
+               void ProcessIncommingPacket(void);\r
+               void ManageConnections(void);\r
+               void TCPCallback(void);\r
+       \r
+               void EVENT_USB_Host_HostError(const uint8_t ErrorCode);\r
+               void EVENT_USB_Host_DeviceAttached(void);\r
+               void EVENT_USB_Host_DeviceUnattached(void);\r
+               void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode);\r
+               void EVENT_USB_Host_DeviceEnumerationComplete(void);\r
+               \r
+#endif\r

diff --git a/Projects/Incomplete/Webserver/makefile b/Projects/Incomplete/Webserver/makefile
new file mode 100644 (file)
index 0000000..6a6e4c9
--- /dev/null
+++ b/Projects/Incomplete/Webserver/makefile
@@ -0,0 +1,742 @@
+# Hey Emacs, this is a -*- makefile -*-\r
+#----------------------------------------------------------------------------\r
+# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.\r
+#  >> Modified for use with the LUFA project. <<\r
+#\r
+# Released to the Public Domain\r
+#\r
+# Additional material for this makefile was written by:\r
+# Peter Fleury\r
+# Tim Henigan\r
+# Colin O'Flynn\r
+# Reiner Patommel\r
+# Markus Pfaff\r
+# Sander Pool\r
+# Frederik Rouleau\r
+# Carlos Lamas\r
+# Dean Camera\r
+# Opendous Inc.\r
+# Denver Gingerich\r
+#\r
+#----------------------------------------------------------------------------\r
+# On command line:\r
+#\r
+# make all = Make software.\r
+#\r
+# make clean = Clean out built project files.\r
+#\r
+# make coff = Convert ELF to AVR COFF.\r
+#\r
+# make extcoff = Convert ELF to AVR Extended COFF.\r
+#\r
+# make program = Download the hex file to the device, using avrdude.\r
+#                Please customize the avrdude settings below first!\r
+#\r
+# make dfu = Download the hex file to the device, using dfu-programmer (must\r
+#            have dfu-programmer installed).\r
+#\r
+# make flip = Download the hex file to the device, using Atmel FLIP (must\r
+#             have Atmel FLIP installed).\r
+#\r
+# make dfu-ee = Download the eeprom file to the device, using dfu-programmer\r
+#               (must have dfu-programmer installed).\r
+#\r
+# make flip-ee = Download the eeprom file to the device, using Atmel FLIP\r
+#                (must have Atmel FLIP installed).\r
+#\r
+# make doxygen = Generate DoxyGen documentation for the project (must have\r
+#                DoxyGen installed)\r
+#\r
+# make debug = Start either simulavr or avarice as specified for debugging, \r
+#              with avr-gdb or avr-insight as the front end for debugging.\r
+#\r
+# make filename.s = Just compile filename.c into the assembler code only.\r
+#\r
+# make filename.i = Create a preprocessed source file for use in submitting\r
+#                   bug reports to the GCC project.\r
+#\r
+# To rebuild project do "make clean" then "make all".\r
+#----------------------------------------------------------------------------\r
+\r
+\r
+# MCU name\r
+MCU = at90usb1287\r
+\r
+\r
+# Target board (see library "Board Types" documentation, USER or blank for projects not requiring\r
+# LUFA board drivers). If USER is selected, put custom board drivers in a directory called \r
+# "Board" inside the application directory.\r
+BOARD  = USBKEY\r
+\r
+\r
+# Processor frequency.\r
+#     This will define a symbol, F_CPU, in all source code files equal to the \r
+#     processor frequency in Hz. You can then use this symbol in your source code to \r
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done\r
+#     automatically to create a 32-bit value in your source code.\r
+#\r
+#     This will be an integer division of F_CLOCK below, as it is sourced by\r
+#     F_CLOCK after it has run through any CPU prescalers. Note that this value\r
+#     does not *change* the processor frequency - it should merely be updated to\r
+#     reflect the processor speed set externally so that the code can use accurate\r
+#     software delays.\r
+F_CPU = 8000000\r
+\r
+\r
+# Input clock frequency.\r
+#     This will define a symbol, F_CLOCK, in all source code files equal to the \r
+#     input clock frequency (before any prescaling is performed) in Hz. This value may\r
+#     differ from F_CPU if prescaling is used on the latter, and is required as the\r
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed\r
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'\r
+#     at the end, this will be done automatically to create a 32-bit value in your\r
+#     source code.\r
+#\r
+#     If no clock division is performed on the input clock inside the AVR (via the\r
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.\r
+F_CLOCK = $(F_CPU)\r
+\r
+\r
+# Output format. (can be srec, ihex, binary)\r
+FORMAT = ihex\r
+\r
+\r
+# Target file name (without extension).\r
+TARGET = Webserver\r
+\r
+\r
+# Object files directory\r
+#     To put object files in current directory, use a dot (.), do NOT make\r
+#     this an empty or blank macro!\r
+OBJDIR = .\r
+\r
+\r
+# Path to the LUFA library\r
+LUFA_PATH = ../../../\r
+\r
+\r
+# LUFA library compile-time options\r
+LUFA_OPTS += -D USB_HOST_ONLY\r
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"\r
+\r
+\r
+# List C source files here. (C dependencies are automatically generated.)\r
+SRC = $(TARGET).c                                                 \\r
+         $(LUFA_PATH)/LUFA/Drivers/Peripheral/SerialStream.c         \\r
+         $(LUFA_PATH)/LUFA/Drivers/Peripheral/Serial.c               \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/DevChapter9.c        \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/Endpoint.c           \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/Host.c               \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/HostChapter9.c       \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/LowLevel.c           \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/LowLevel/Pipe.c               \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/Events.c            \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/USBInterrupt.c      \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/USBTask.c           \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c  \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/Class/Device/RNDIS.c          \\r
+         $(LUFA_PATH)/LUFA/Drivers/USB/Class/Host/RNDIS.c            \\r
+         Lib/uip/uip.c                                               \\r
+         Lib/uip/uip_arp.c                                           \\r
+         Lib/uip/uiplib.c                                            \\r
+         Lib/uip/psock.c                                             \\r
+         Lib/uip/timer.c                                             \\r
+         Lib/uip/uip-neighbor.c                                      \\r
+         \r
+         \r
+# List C++ source files here. (C dependencies are automatically generated.)\r
+CPPSRC = \r
+\r
+\r
+# List Assembler source files here.\r
+#     Make them always end in a capital .S.  Files ending in a lowercase .s\r
+#     will not be considered source files but generated files (assembler\r
+#     output from the compiler), and will be deleted upon "make clean"!\r
+#     Even though the DOS/Win* filesystem matches both .s and .S the same,\r
+#     it will preserve the spelling of the filenames, and gcc itself does\r
+#     care about how the name is spelled on its command-line.\r
+ASRC =\r
+\r
+\r
+# Optimization level, can be [0, 1, 2, 3, s]. \r
+#     0 = turn off optimization. s = optimize for size.\r
+#     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)\r
+OPT = s\r
+\r
+\r
+# Debugging format.\r
+#     Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.\r
+#     AVR Studio 4.10 requires dwarf-2.\r
+#     AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.\r
+DEBUG = dwarf-2\r
+\r
+\r
+# List any extra directories to look for include files here.\r
+#     Each directory must be seperated by a space.\r
+#     Use forward slashes for directory separators.\r
+#     For a directory that has spaces, enclose it in quotes.\r
+EXTRAINCDIRS = $(LUFA_PATH)/ Lib/uip/ Lib/uip/conf/\r
+\r
+\r
+# Compiler flag to set the C Standard level.\r
+#     c89   = "ANSI" C\r
+#     gnu89 = c89 plus GCC extensions\r
+#     c99   = ISO C99 standard (not yet fully implemented)\r
+#     gnu99 = c99 plus GCC extensions\r
+CSTANDARD = -std=gnu99\r
+\r
+\r
+# Place -D or -U options here for C sources\r
+CDEFS  = -DF_CPU=$(F_CPU)UL -DF_CLOCK=$(F_CLOCK)UL -DBOARD=BOARD_$(BOARD) $(LUFA_OPTS)\r
+\r
+\r
+# Place -D or -U options here for ASM sources\r
+ADEFS = -DF_CPU=$(F_CPU)\r
+\r
+\r
+# Place -D or -U options here for C++ sources\r
+CPPDEFS = -DF_CPU=$(F_CPU)UL\r
+#CPPDEFS += -D__STDC_LIMIT_MACROS\r
+#CPPDEFS += -D__STDC_CONSTANT_MACROS\r
+\r
+\r
+\r
+#---------------- Compiler Options C ----------------\r
+#  -g*:          generate debugging information\r
+#  -O*:          optimization level\r
+#  -f...:        tuning, see GCC manual and avr-libc documentation\r
+#  -Wall...:     warning level\r
+#  -Wa,...:      tell GCC to pass this to the assembler.\r
+#    -adhlns...: create assembler listing\r
+CFLAGS = -g$(DEBUG)\r
+CFLAGS += $(CDEFS)\r
+CFLAGS += -O$(OPT)\r
+CFLAGS += -funsigned-char\r
+CFLAGS += -funsigned-bitfields\r
+CFLAGS += -ffunction-sections\r
+CFLAGS += -fno-inline-small-functions\r
+CFLAGS += -fpack-struct\r
+CFLAGS += -fshort-enums\r
+CFLAGS += -Wall\r
+CFLAGS += -Wstrict-prototypes\r
+CFLAGS += -Wundef\r
+#CFLAGS += -fno-unit-at-a-time\r
+#CFLAGS += -Wunreachable-code\r
+#CFLAGS += -Wsign-compare\r
+CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)\r
+CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))\r
+CFLAGS += $(CSTANDARD)\r
+\r
+\r
+#---------------- Compiler Options C++ ----------------\r
+#  -g*:          generate debugging information\r
+#  -O*:          optimization level\r
+#  -f...:        tuning, see GCC manual and avr-libc documentation\r
+#  -Wall...:     warning level\r
+#  -Wa,...:      tell GCC to pass this to the assembler.\r
+#    -adhlns...: create assembler listing\r
+CPPFLAGS = -g$(DEBUG)\r
+CPPFLAGS += $(CPPDEFS)\r
+CPPFLAGS += -O$(OPT)\r
+CPPFLAGS += -funsigned-char\r
+CPPFLAGS += -funsigned-bitfields\r
+CPPFLAGS += -fpack-struct\r
+CPPFLAGS += -fshort-enums\r
+CPPFLAGS += -fno-exceptions\r
+CPPFLAGS += -Wall\r
+CFLAGS += -Wundef\r
+#CPPFLAGS += -mshort-calls\r
+#CPPFLAGS += -fno-unit-at-a-time\r
+#CPPFLAGS += -Wstrict-prototypes\r
+#CPPFLAGS += -Wunreachable-code\r
+#CPPFLAGS += -Wsign-compare\r
+CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)\r
+CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))\r
+#CPPFLAGS += $(CSTANDARD)\r
+\r
+\r
+#---------------- Assembler Options ----------------\r
+#  -Wa,...:   tell GCC to pass this to the assembler.\r
+#  -adhlns:   create listing\r
+#  -gstabs:   have the assembler create line number information; note that\r
+#             for use in COFF files, additional information about filenames\r
+#             and function names needs to be present in the assembler source\r
+#             files -- see avr-libc docs [FIXME: not yet described there]\r
+#  -listing-cont-lines: Sets the maximum number of continuation lines of hex \r
+#       dump that will be displayed for a given single line of source input.\r
+ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs,--listing-cont-lines=100\r
+\r
+\r
+#---------------- Library Options ----------------\r
+# Minimalistic printf version\r
+PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min\r
+\r
+# Floating point printf version (requires MATH_LIB = -lm below)\r
+PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt\r
+\r
+# If this is left blank, then it will use the Standard printf version.\r
+PRINTF_LIB = \r
+#PRINTF_LIB = $(PRINTF_LIB_MIN)\r
+#PRINTF_LIB = $(PRINTF_LIB_FLOAT)\r
+\r
+\r
+# Minimalistic scanf version\r
+SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min\r
+\r
+# Floating point + %[ scanf version (requires MATH_LIB = -lm below)\r
+SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt\r
+\r
+# If this is left blank, then it will use the Standard scanf version.\r
+SCANF_LIB = \r
+#SCANF_LIB = $(SCANF_LIB_MIN)\r
+#SCANF_LIB = $(SCANF_LIB_FLOAT)\r
+\r
+\r
+MATH_LIB = -lm\r
+\r
+\r
+# List any extra directories to look for libraries here.\r
+#     Each directory must be seperated by a space.\r
+#     Use forward slashes for directory separators.\r
+#     For a directory that has spaces, enclose it in quotes.\r
+EXTRALIBDIRS = \r
+\r
+\r
+\r
+#---------------- External Memory Options ----------------\r
+\r
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),\r
+# used for variables (.data/.bss) and heap (malloc()).\r
+#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff\r
+\r
+# 64 KB of external RAM, starting after internal RAM (ATmega128!),\r
+# only used for heap (malloc()).\r
+#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff\r
+\r
+EXTMEMOPTS =\r
+\r
+\r
+\r
+#---------------- Linker Options ----------------\r
+#  -Wl,...:     tell GCC to pass this to linker.\r
+#    -Map:      create map file\r
+#    --cref:    add cross reference to  map file\r
+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref\r
+LDFLAGS += -Wl,--relax \r
+LDFLAGS += -Wl,--gc-sections\r
+LDFLAGS += $(EXTMEMOPTS)\r
+LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))\r
+LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)\r
+#LDFLAGS += -T linker_script.x\r
+\r
+\r
+\r
+#---------------- Programming Options (avrdude) ----------------\r
+\r
+# Programming hardware: alf avr910 avrisp bascom bsd \r
+# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500\r
+#\r
+# Type: avrdude -c ?\r
+# to get a full listing.\r
+#\r
+AVRDUDE_PROGRAMMER = jtagmkII\r
+\r
+# com1 = serial port. Use lpt1 to connect to parallel port.\r
+AVRDUDE_PORT = usb\r
+\r
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex\r
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep\r
+\r
+\r
+# Uncomment the following if you want avrdude's erase cycle counter.\r
+# Note that this counter needs to be initialized first using -Yn,\r
+# see avrdude manual.\r
+#AVRDUDE_ERASE_COUNTER = -y\r
+\r
+# Uncomment the following if you do /not/ wish a verification to be\r
+# performed after programming the device.\r
+#AVRDUDE_NO_VERIFY = -V\r
+\r
+# Increase verbosity level.  Please use this when submitting bug\r
+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> \r
+# to submit bug reports.\r
+#AVRDUDE_VERBOSE = -v -v\r
+\r
+AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)\r
+AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)\r
+AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)\r
+AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)\r
+\r
+\r
+\r
+#---------------- Debugging Options ----------------\r
+\r
+# For simulavr only - target MCU frequency.\r
+DEBUG_MFREQ = $(F_CPU)\r
+\r
+# Set the DEBUG_UI to either gdb or insight.\r
+# DEBUG_UI = gdb\r
+DEBUG_UI = insight\r
+\r
+# Set the debugging back-end to either avarice, simulavr.\r
+DEBUG_BACKEND = avarice\r
+#DEBUG_BACKEND = simulavr\r
+\r
+# GDB Init Filename.\r
+GDBINIT_FILE = __avr_gdbinit\r
+\r
+# When using avarice settings for the JTAG\r
+JTAG_DEV = /dev/com1\r
+\r
+# Debugging port used to communicate between GDB / avarice / simulavr.\r
+DEBUG_PORT = 4242\r
+\r
+# Debugging host used to communicate between GDB / avarice / simulavr, normally\r
+#     just set to localhost unless doing some sort of crazy debugging when \r
+#     avarice is running on a different computer.\r
+DEBUG_HOST = localhost\r
+\r
+\r
+\r
+#============================================================================\r
+\r
+\r
+# Define programs and commands.\r
+SHELL = sh\r
+CC = avr-gcc\r
+OBJCOPY = avr-objcopy\r
+OBJDUMP = avr-objdump\r
+SIZE = avr-size\r
+AR = avr-ar rcs\r
+NM = avr-nm\r
+AVRDUDE = avrdude\r
+REMOVE = rm -f\r
+REMOVEDIR = rm -rf\r
+COPY = cp\r
+WINSHELL = cmd\r
+\r
+# Define Messages\r
+# English\r
+MSG_ERRORS_NONE = Errors: none\r
+MSG_BEGIN = -------- begin --------\r
+MSG_END = --------  end  --------\r
+MSG_SIZE_BEFORE = Size before: \r
+MSG_SIZE_AFTER = Size after:\r
+MSG_COFF = Converting to AVR COFF:\r
+MSG_EXTENDED_COFF = Converting to AVR Extended COFF:\r
+MSG_FLASH = Creating load file for Flash:\r
+MSG_EEPROM = Creating load file for EEPROM:\r
+MSG_EXTENDED_LISTING = Creating Extended Listing:\r
+MSG_SYMBOL_TABLE = Creating Symbol Table:\r
+MSG_LINKING = Linking:\r
+MSG_COMPILING = Compiling C:\r
+MSG_COMPILING_CPP = Compiling C++:\r
+MSG_ASSEMBLING = Assembling:\r
+MSG_CLEANING = Cleaning project:\r
+MSG_CREATING_LIBRARY = Creating library:\r
+\r
+\r
+\r
+\r
+# Define all object files.\r
+OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o) \r
+\r
+# Define all listing files.\r
+LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst) \r
+\r
+\r
+# Compiler flags to generate dependency files.\r
+GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d\r
+\r
+\r
+# Combine all necessary flags and optional flags.\r
+# Add target processor to flags.\r
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)\r
+ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)\r
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)\r
+\r
+\r
+\r
+\r
+\r
+# Default target.\r
+all: begin gccversion sizebefore build checkinvalidevents showliboptions showtarget sizeafter end\r
+\r
+# Change the build target to build a HEX file or a library.\r
+build: elf hex eep lss sym\r
+#build: lib\r
+\r
+\r
+elf: $(TARGET).elf\r
+hex: $(TARGET).hex\r
+eep: $(TARGET).eep\r
+lss: $(TARGET).lss\r
+sym: $(TARGET).sym\r
+LIBNAME=lib$(TARGET).a\r
+lib: $(LIBNAME)\r
+\r
+\r
+\r
+# Eye candy.\r
+# AVR Studio 3.x does not check make's exit code but relies on\r
+# the following magic strings to be generated by the compile job.\r
+begin:\r
+       @echo\r
+       @echo $(MSG_BEGIN)\r
+\r
+end:\r
+       @echo $(MSG_END)\r
+       @echo\r
+\r
+\r
+# Display size of file.\r
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex\r
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf\r
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )\r
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )\r
+\r
+sizebefore:\r
+       @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \\r
+       2>/dev/null; echo; fi\r
+\r
+sizeafter:\r
+       @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \\r
+       2>/dev/null; echo; fi\r
+\r
+$(LUFA_PATH)/LUFA/LUFA_Events.lst:\r
+       @make -C $(LUFA_PATH)/LUFA/ LUFA_Events.lst\r
+\r
+checkinvalidevents: $(LUFA_PATH)/LUFA/LUFA_Events.lst\r
+       @echo\r
+       @echo Checking for invalid events...\r
+       @$(shell) avr-nm $(OBJ) | sed -n -e 's/^.*EVENT_/EVENT_/p' | \\r
+                        grep -F -v --file=$(LUFA_PATH)/LUFA/LUFA_Events.lst > InvalidEvents.tmp || true\r
+       @sed -n -e 's/^/  WARNING - INVALID EVENT NAME: /p' InvalidEvents.tmp\r
+       @if test -s InvalidEvents.tmp; then exit 1; fi\r
+       \r
+showliboptions:\r
+       @echo\r
+       @echo ---- Compile Time Library Options ----\r
+       @for i in $(LUFA_OPTS:-D%=%); do \\r
+               echo $$i; \\r
+       done\r
+       @echo --------------------------------------\r
+\r
+showtarget:\r
+       @echo\r
+       @echo --------- Target Information ---------\r
+       @echo AVR Model: $(MCU)\r
+       @echo Board:     $(BOARD)\r
+       @echo Clock:     $(F_CPU)Hz CPU, $(F_CLOCK)Hz Master\r
+       @echo --------------------------------------\r
+       \r
+\r
+# Display compiler version information.\r
+gccversion : \r
+       @$(CC) --version\r
+\r
+\r
+# Program the device.  \r
+program: $(TARGET).hex $(TARGET).eep\r
+       $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)\r
+\r
+flip: $(TARGET).hex\r
+       batchisp -hardware usb -device $(MCU) -operation erase f\r
+       batchisp -hardware usb -device $(MCU) -operation loadbuffer $(TARGET).hex program\r
+       batchisp -hardware usb -device $(MCU) -operation start reset 0\r
+\r
+dfu: $(TARGET).hex\r
+       dfu-programmer $(MCU) erase\r
+       dfu-programmer $(MCU) flash --debug 1 $(TARGET).hex\r
+       dfu-programmer $(MCU) reset\r
+\r
+flip-ee: $(TARGET).hex $(TARGET).eep\r
+       $(COPY) $(TARGET).eep $(TARGET)eep.hex\r
+       batchisp -hardware usb -device $(MCU) -operation memory EEPROM erase\r
+       batchisp -hardware usb -device $(MCU) -operation memory EEPROM loadbuffer $(TARGET)eep.hex program\r
+       batchisp -hardware usb -device $(MCU) -operation start reset 0\r
+       $(REMOVE) $(TARGET)eep.hex\r
+\r
+dfu-ee: $(TARGET).hex $(TARGET).eep\r
+       dfu-programmer $(MCU) flash-eeprom --debug 1 --suppress-bootloader-mem $(TARGET).eep\r
+       dfu-programmer $(MCU) reset\r
+\r
+\r
+# Generate avr-gdb config/init file which does the following:\r
+#     define the reset signal, load the target file, connect to target, and set \r
+#     a breakpoint at main().\r
+gdb-config: \r
+       @$(REMOVE) $(GDBINIT_FILE)\r
+       @echo define reset >> $(GDBINIT_FILE)\r
+       @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)\r
+       @echo end >> $(GDBINIT_FILE)\r
+       @echo file $(TARGET).elf >> $(GDBINIT_FILE)\r
+       @echo target remote $(DEBUG_HOST):$(DEBUG_PORT)  >> $(GDBINIT_FILE)\r
+ifeq ($(DEBUG_BACKEND),simulavr)\r
+       @echo load  >> $(GDBINIT_FILE)\r
+endif\r
+       @echo break main >> $(GDBINIT_FILE)\r
+\r
+debug: gdb-config $(TARGET).elf\r
+ifeq ($(DEBUG_BACKEND), avarice)\r
+       @echo Starting AVaRICE - Press enter when "waiting to connect" message displays.\r
+       @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \\r
+       $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)\r
+       @$(WINSHELL) /c pause\r
+\r
+else\r
+       @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \\r
+       $(DEBUG_MFREQ) --port $(DEBUG_PORT)\r
+endif\r
+       @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)\r
+\r
+\r
+\r
+\r
+# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.\r
+COFFCONVERT = $(OBJCOPY) --debugging\r
+COFFCONVERT += --change-section-address .data-0x800000\r
+COFFCONVERT += --change-section-address .bss-0x800000\r
+COFFCONVERT += --change-section-address .noinit-0x800000\r
+COFFCONVERT += --change-section-address .eeprom-0x810000\r
+\r
+\r
+\r
+coff: $(TARGET).elf\r
+       @echo\r
+       @echo $(MSG_COFF) $(TARGET).cof\r
+       $(COFFCONVERT) -O coff-avr $< $(TARGET).cof\r
+\r
+\r
+extcoff: $(TARGET).elf\r
+       @echo\r
+       @echo $(MSG_EXTENDED_COFF) $(TARGET).cof\r
+       $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof\r
+\r
+\r
+\r
+# Create final output files (.hex, .eep) from ELF output file.\r
+%.hex: %.elf\r
+       @echo\r
+       @echo $(MSG_FLASH) $@\r
+       $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@\r
+\r
+%.eep: %.elf\r
+       @echo\r
+       @echo $(MSG_EEPROM) $@\r
+       -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \\r
+       --change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0\r
+\r
+# Create extended listing file from ELF output file.\r
+%.lss: %.elf\r
+       @echo\r
+       @echo $(MSG_EXTENDED_LISTING) $@\r
+       $(OBJDUMP) -h -z -S $< > $@\r
+\r
+# Create a symbol table from ELF output file.\r
+%.sym: %.elf\r
+       @echo\r
+       @echo $(MSG_SYMBOL_TABLE) $@\r
+       $(NM) -n $< > $@\r
+\r
+\r
+\r
+# Create library from object files.\r
+.SECONDARY : $(TARGET).a\r
+.PRECIOUS : $(OBJ)\r
+%.a: $(OBJ)\r
+       @echo\r
+       @echo $(MSG_CREATING_LIBRARY) $@\r
+       $(AR) $@ $(OBJ)\r
+\r
+\r
+# Link: create ELF output file from object files.\r
+.SECONDARY : $(TARGET).elf\r
+.PRECIOUS : $(OBJ)\r
+%.elf: $(OBJ)\r
+       @echo\r
+       @echo $(MSG_LINKING) $@\r
+       $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)\r
+\r
+\r
+# Compile: create object files from C source files.\r
+$(OBJDIR)/%.o : %.c\r
+       @echo\r
+       @echo $(MSG_COMPILING) $<\r
+       $(CC) -c $(ALL_CFLAGS) $< -o $@ \r
+\r
+\r
+# Compile: create object files from C++ source files.\r
+$(OBJDIR)/%.o : %.cpp\r
+       @echo\r
+       @echo $(MSG_COMPILING_CPP) $<\r
+       $(CC) -c $(ALL_CPPFLAGS) $< -o $@ \r
+\r
+\r
+# Compile: create assembler files from C source files.\r
+%.s : %.c\r
+       $(CC) -S $(ALL_CFLAGS) $< -o $@\r
+\r
+\r
+# Compile: create assembler files from C++ source files.\r
+%.s : %.cpp\r
+       $(CC) -S $(ALL_CPPFLAGS) $< -o $@\r
+\r
+\r
+# Assemble: create object files from assembler source files.\r
+$(OBJDIR)/%.o : %.S\r
+       @echo\r
+       @echo $(MSG_ASSEMBLING) $<\r
+       $(CC) -c $(ALL_ASFLAGS) $< -o $@\r
+\r
+\r
+# Create preprocessed source for use in sending a bug report.\r
+%.i : %.c\r
+       $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@ \r
+       \r
+\r
+# Target: clean project.\r
+clean: begin clean_list clean_binary end\r
+\r
+clean_binary:\r
+       $(REMOVE) $(TARGET).hex\r
+       \r
+clean_list:\r
+       @echo $(MSG_CLEANING)\r
+       $(REMOVE) $(TARGET).eep\r
+       $(REMOVE) $(TARGET)eep.hex\r
+       $(REMOVE) $(TARGET).cof\r
+       $(REMOVE) $(TARGET).elf\r
+       $(REMOVE) $(TARGET).map\r
+       $(REMOVE) $(TARGET).sym\r
+       $(REMOVE) $(TARGET).lss\r
+       $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o)\r
+       $(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst)\r
+       $(REMOVE) $(SRC:.c=.s)\r
+       $(REMOVE) $(SRC:.c=.d)\r
+       $(REMOVE) $(SRC:.c=.i)\r
+       $(REMOVE) InvalidEvents.tmp\r
+       $(REMOVEDIR) .dep\r
+\r
+doxygen:\r
+       @echo Generating Project Documentation...\r
+       @doxygen Doxygen.conf\r
+       @echo Documentation Generation Complete.\r
+\r
+clean_doxygen:\r
+       rm -rf Documentation\r
+\r
+# Create object files directory\r
+$(shell mkdir $(OBJDIR) 2>/dev/null)\r
+\r
+\r
+# Include the dependency files.\r
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)\r
+\r
+\r
+# Listing of phony targets.\r
+.PHONY : all checkinvalidevents showliboptions    \\r
+showtarget begin finish end sizebefore sizeafter  \\r
+gccversion build elf hex eep lss sym coff extcoff \\r
+program dfu flip flip-ee dfu-ee clean debug       \\r
+clean_list clean_binary gdb-config doxygen
\ No newline at end of file