diff options
Diffstat (limited to 'lib/lufa/Projects/Webserver/Lib/uip')
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/clock.c | 37 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/clock.h | 13 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/timer.c | 128 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/timer.h | 87 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uip-split.c | 151 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uip-split.h | 104 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uip.c | 1941 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uip.h | 2130 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uip_arp.c | 432 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uip_arp.h | 146 | ||||
| -rw-r--r-- | lib/lufa/Projects/Webserver/Lib/uip/uipopt.h | 740 |
11 files changed, 0 insertions, 5909 deletions
diff --git a/lib/lufa/Projects/Webserver/Lib/uip/clock.c b/lib/lufa/Projects/Webserver/Lib/uip/clock.c deleted file mode 100644 index e71f7209d2..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/clock.c +++ /dev/null @@ -1,37 +0,0 @@ -#include <stdint.h> -#include <stdlib.h> -#include <stdio.h> - -#include <LUFA/Common/Common.h> - -#include "clock.h" - -//Counted time -volatile clock_time_t clock_datetime = 0; - -//Overflow interrupt -ISR(TIMER1_COMPA_vect, ISR_BLOCK) -{ - clock_datetime += 1; -} - -//Initialise the clock -void clock_init() -{ - OCR1A = (((F_CPU / 1024) / 100) - 1); - TCCR1B = ((1 << WGM12) | (1 << CS12) | (1 << CS10)); - TIMSK1 = (1 << OCIE1A); -} - -//Return time -clock_time_t clock_time() -{ - clock_time_t time; - - GlobalInterruptDisable(); - time = clock_datetime; - GlobalInterruptEnable(); - - return time; -} - diff --git a/lib/lufa/Projects/Webserver/Lib/uip/clock.h b/lib/lufa/Projects/Webserver/Lib/uip/clock.h deleted file mode 100644 index bbfa4ac0e3..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/clock.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef __CLOCK_ARCH_H__ -#define __CLOCK_ARCH_H__ - -#include <stdint.h> -#include <util/atomic.h> - -typedef uint16_t clock_time_t; -#define CLOCK_SECOND 100 -void clock_init(void); -clock_time_t clock_time(void); - -#endif /* __CLOCK_ARCH_H__ */ - diff --git a/lib/lufa/Projects/Webserver/Lib/uip/timer.c b/lib/lufa/Projects/Webserver/Lib/uip/timer.c deleted file mode 100644 index eae06f43bd..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/timer.c +++ /dev/null @@ -1,128 +0,0 @@ -/** - * \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_restart() 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 periodic 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/lib/lufa/Projects/Webserver/Lib/uip/timer.h b/lib/lufa/Projects/Webserver/Lib/uip/timer.h deleted file mode 100644 index 04917e4c52..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/timer.h +++ /dev/null @@ -1,87 +0,0 @@ -/** - * \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/lib/lufa/Projects/Webserver/Lib/uip/uip-split.c b/lib/lufa/Projects/Webserver/Lib/uip/uip-split.c deleted file mode 100644 index 5222a05b63..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/uip-split.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * 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 Contiki operating system. - * - * Author: Adam Dunkels <adam@sics.se> - * - * $Id: uip-split.c,v 1.2 2008/10/14 13:39:12 julienabeille Exp $ - */ - -#include "uip-split.h" - - -#define BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN]) - -/*-----------------------------------------------------------------------------*/ -void -uip_split_output(void) -{ -#if UIP_TCP - u16_t tcplen, len1, len2; - - /* We only try to split maximum sized TCP segments. */ - if(BUF->proto == UIP_PROTO_TCP && uip_len == UIP_BUFSIZE) { - - tcplen = uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN; - /* 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 + UIP_LLH_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 - UIP_LLH_LEN) >> 8; - BUF->len[1] = (uip_len - UIP_LLH_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. */ -#if UIP_CONF_IPV6 - tcpip_ipv6_output(); -#else - if (USB_CurrentMode == USB_MODE_Device) - RNDIS_Device_SendPacket(&Ethernet_RNDIS_Interface_Device, uip_buf, uip_len); - else - RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface_Host, uip_buf, uip_len); -#endif /* UIP_CONF_IPV6 */ - - /* 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 determined by the length of the first - packet (len1). */ - uip_len = len2 + UIP_TCPIP_HLEN + UIP_LLH_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 - UIP_LLH_LEN) >> 8; - BUF->len[1] = (uip_len - UIP_LLH_LEN) & 0xff; -#endif /* UIP_CONF_IPV6 */ - - 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. */ -#if UIP_CONF_IPV6 - tcpip_ipv6_output(); -#else - if (USB_CurrentMode == USB_MODE_Device) - RNDIS_Device_SendPacket(&Ethernet_RNDIS_Interface_Device, uip_buf, uip_len); - else - RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface_Host, uip_buf, uip_len); -#endif /* UIP_CONF_IPV6 */ - return; - } -#endif /* UIP_TCP */ - - /* uip_fw_output();*/ -#if UIP_CONF_IPV6 - tcpip_ipv6_output(); -#else - if (USB_CurrentMode == USB_MODE_Device) - RNDIS_Device_SendPacket(&Ethernet_RNDIS_Interface_Device, uip_buf, uip_len); - else - RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface_Host, uip_buf, uip_len); -#endif /* UIP_CONF_IPV6 */ -} - -/*-----------------------------------------------------------------------------*/ - diff --git a/lib/lufa/Projects/Webserver/Lib/uip/uip-split.h b/lib/lufa/Projects/Webserver/Lib/uip/uip-split.h deleted file mode 100644 index 0c768ce40a..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/uip-split.h +++ /dev/null @@ -1,104 +0,0 @@ -/* - * 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 Contiki operating system. - * - * Author: Adam Dunkels <adam@sics.se> - * - * $Id: uip-split.h,v 1.1 2006/06/17 22:41:19 adamdunkels 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__ - -#include <string.h> -#include <uip.h> - -#include "../../USBHostMode.h" - -#include <LUFA/Drivers/USB/USB.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); -void uip_add32(u8_t *op32, u16_t op16); -#endif /* __UIP_SPLIT_H__ */ - -/** @} */ -/** @} */ - diff --git a/lib/lufa/Projects/Webserver/Lib/uip/uip.c b/lib/lufa/Projects/Webserver/Lib/uip/uip.c deleted file mode 100644 index fead75775c..0000000000 --- a/lib/lufa/Projects/Webserver/Lib/uip/uip.c +++ /dev/null @@ -1,1941 +0,0 @@ -#define DEBUG_PRINTF(...) /*printf(__VA_ARGS__)*/ - -/** - * \addtogroup uip - * @{ - */ - -/** - * \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 1.15 2008/10/15 08:08:32 adamdunkels 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 optimizer 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_arp.h" - -#if !UIP_CONF_IPV6 /* If UIP_CONF_IPV6 is defined, we compile the - uip6.c file instead of this one. Therefore - this #ifndef removes the entire compilation - output of the uip.c file */ - - -#if UIP_CONF_IPV6 -#include "net/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 = - { UIP_IPADDR0, UIP_IPADDR1, UIP_IPADDR2, UIP_IPADDR3 }; -const uip_ipaddr_t uip_draddr = - { UIP_DRIPADDR0, UIP_DRIPADDR1, UIP_DRIPADDR2, UIP_DRIPADDR3 }; -const uip_ipaddr_t uip_netmask = - { UIP_NETMASK0, UIP_NETMASK1, UIP_NETMASK2, UIP_NETMASK3 }; -#else -uip_ipaddr_t uip_hostaddr, uip_draddr, uip_netmask; -#endif /* UIP_FIXEDADDR */ - -const uip_ipaddr_t uip_broadcast_addr = -#if UIP_CONF_IPV6 - { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } }; -#else /* UIP_CONF_IPV6 */ - { { 0xff, 0xff, 0xff, 0xff } }; -#endif /* UIP_CONF_IPV6 */ -const uip_ipaddr_t uip_all_zeroes_addr = { { 0x0, /* rest is 0 */ } }; - -#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 - listening 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 ICMP_DEST_UNREACHABLE 3 -#define ICMP_PORT_UNREACHABLE 3 - -#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 pseudo-header. */ - - /* 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, 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]; |