From f6cb281440a8d91c27bc5fff80ae5aa14fc4b52e Mon Sep 17 00:00:00 2001 From: Meco Man <920369182@qq.com> Date: Mon, 8 Mar 2021 18:31:46 +0800 Subject: [PATCH] [components] remove uip --- components/net/uip/uip/Makefile.include | 47 - components/net/uip/uip/lc-addrlabels.h | 83 - components/net/uip/uip/lc-switch.h | 76 - components/net/uip/uip/lc.h | 131 -- components/net/uip/uip/psock.c | 338 ---- components/net/uip/uip/psock.h | 380 ----- components/net/uip/uip/pt.h | 323 ---- components/net/uip/uip/uip-fw.c | 532 ------- components/net/uip/uip/uip-fw.h | 176 --- components/net/uip/uip/uip-neighbor.c | 158 -- components/net/uip/uip/uip-neighbor.h | 61 - components/net/uip/uip/uip-split.c | 136 -- components/net/uip/uip/uip-split.h | 96 -- components/net/uip/uip/uip.c | 1903 ----------------------- components/net/uip/uip/uip.h | 1602 ------------------- components/net/uip/uip/uip_arch.h | 138 -- components/net/uip/uip/uip_arp.c | 423 ----- components/net/uip/uip/uip_arp.h | 144 -- components/net/uip/uip/uip_clock.h | 88 -- components/net/uip/uip/uip_timer.c | 197 --- components/net/uip/uip/uip_timer.h | 86 - components/net/uip/uip/uiplib.c | 74 - components/net/uip/uip/uiplib.h | 71 - components/net/uip/uip/uipopt.h | 539 ------- 24 files changed, 7802 deletions(-) delete mode 100644 components/net/uip/uip/Makefile.include delete mode 100644 components/net/uip/uip/lc-addrlabels.h delete mode 100644 components/net/uip/uip/lc-switch.h delete mode 100644 components/net/uip/uip/lc.h delete mode 100644 components/net/uip/uip/psock.c delete mode 100644 components/net/uip/uip/psock.h delete mode 100644 components/net/uip/uip/pt.h delete mode 100644 components/net/uip/uip/uip-fw.c delete mode 100644 components/net/uip/uip/uip-fw.h delete mode 100644 components/net/uip/uip/uip-neighbor.c delete mode 100644 components/net/uip/uip/uip-neighbor.h delete mode 100644 components/net/uip/uip/uip-split.c delete mode 100644 components/net/uip/uip/uip-split.h delete mode 100644 components/net/uip/uip/uip.c delete mode 100644 components/net/uip/uip/uip.h delete mode 100644 components/net/uip/uip/uip_arch.h delete mode 100644 components/net/uip/uip/uip_arp.c delete mode 100644 components/net/uip/uip/uip_arp.h delete mode 100644 components/net/uip/uip/uip_clock.h delete mode 100644 components/net/uip/uip/uip_timer.c delete mode 100644 components/net/uip/uip/uip_timer.h delete mode 100644 components/net/uip/uip/uiplib.c delete mode 100644 components/net/uip/uip/uiplib.h delete mode 100644 components/net/uip/uip/uipopt.h diff --git a/components/net/uip/uip/Makefile.include b/components/net/uip/uip/Makefile.include deleted file mode 100644 index b4d8a94cf5..0000000000 --- a/components/net/uip/uip/Makefile.include +++ /dev/null @@ -1,47 +0,0 @@ - - -ifdef APPS - APPDIRS = $(foreach APP, $(APPS), ../apps/$(APP)) - -include $(foreach APP, $(APPS), ../apps/$(APP)/Makefile.$(APP)) - CFLAGS += $(addprefix -I../apps/,$(APPS)) -endif - -ifndef CCDEP - CCDEP = $(CC) -endif -ifndef CCDEPCFLAGS - CCDEPCFLAGS = $(CFLAGS) -endif -ifndef OBJECTDIR - OBJECTDIR = obj -endif - -ifeq (${wildcard $(OBJECTDIR)},) - DUMMY := ${shell mkdir $(OBJECTDIR)} -endif - - -vpath %.c . ../uip ../lib $(APPDIRS) - -$(OBJECTDIR)/%.o: %.c - $(CC) $(CFLAGS) -c $< -o $@ - -$(OBJECTDIR)/%.d: %.c - @set -e; rm -f $@; \ - $(CCDEP) -MM $(CCDEPCFLAGS) $< > $@.$$$$; \ - sed 's,\($*\)\.o[ :]*,$(OBJECTDIR)/\1.o $@ : ,g' < $@.$$$$ > $@; \ - rm -f $@.$$$$ - -UIP_SOURCES=uip.c uip_arp.c uiplib.c psock.c timer.c uip-neighbor.c - - -ifneq ($(MAKECMDGOALS),clean) --include $(addprefix $(OBJECTDIR)/,$(UIP_SOURCES:.c=.d) \ - $(APP_SOURCES:.c=.d)) -endif - -uip.a: ${addprefix $(OBJECTDIR)/, $(UIP_SOURCES:.c=.o)} - $(AR) rcf $@ $^ - -apps.a: ${addprefix $(OBJECTDIR)/, $(APP_SOURCES:.c=.o)} - $(AR) rcf $@ $^ diff --git a/components/net/uip/uip/lc-addrlabels.h b/components/net/uip/uip/lc-addrlabels.h deleted file mode 100644 index fe1387e5f6..0000000000 --- a/components/net/uip/uip/lc-addrlabels.h +++ /dev/null @@ -1,83 +0,0 @@ -/* - * 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 - * - * $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 - * - * 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/components/net/uip/uip/lc-switch.h b/components/net/uip/uip/lc-switch.h deleted file mode 100644 index 90e22bd09f..0000000000 --- a/components/net/uip/uip/lc-switch.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * 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 - * - * $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 - * - * 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_SWITCH_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/components/net/uip/uip/lc.h b/components/net/uip/uip/lc.h deleted file mode 100644 index a9e9d46983..0000000000 --- a/components/net/uip/uip/lc.h +++ /dev/null @@ -1,131 +0,0 @@ -/* - * 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 - * - * $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 set in a specific function to - * capture the state of the function. After a local continuation has - * been set can be resumed 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 - * - */ - -#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 not 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/components/net/uip/uip/psock.c b/components/net/uip/uip/psock.c deleted file mode 100644 index b6b3bff699..0000000000 --- a/components/net/uip/uip/psock.c +++ /dev/null @@ -1,338 +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 uIP TCP/IP stack - * - * Author: Adam Dunkels - * - * $Id: psock.c,v 1.2 2006/06/12 08:00:30 adam Exp $ - */ - -#include -#include - -#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 =(const u8_t*) 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/components/net/uip/uip/psock.h b/components/net/uip/uip/psock.h deleted file mode 100644 index 3dffa73586..0000000000 --- a/components/net/uip/uip/psock.h +++ /dev/null @@ -1,380 +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 uIP TCP/IP stack - * - * Author: Adam Dunkels - * - * $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 - * - */ - -#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/components/net/uip/uip/pt.h b/components/net/uip/uip/pt.h deleted file mode 100644 index 9f1f64dafa..0000000000 --- a/components/net/uip/uip/pt.h +++ /dev/null @@ -1,323 +0,0 @@ -/* - * 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 - * - * $Id: pt.h,v 1.2 2006/06/12 08:00:30 adam Exp $ - */ - -/** - * \addtogroup pt - * @{ - */ - -/** - * \file - * Protothreads implementation. - * \author - * Adam Dunkels - * - */ - -#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/components/net/uip/uip/uip-fw.c b/components/net/uip/uip/uip-fw.c deleted file mode 100644 index 01858ea7dd..0000000000 --- a/components/net/uip/uip/uip-fw.c +++ /dev/null @@ -1,532 +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 uIP TCP/IP stack - * - * Author: Adam Dunkels - * - * $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 - * - * 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 /* 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/components/net/uip/uip/uip-fw.h b/components/net/uip/uip/uip-fw.h deleted file mode 100644 index 9033850918..0000000000 --- a/components/net/uip/uip/uip-fw.h +++ /dev/null @@ -1,176 +0,0 @@ -/** - * \addtogroup uipfw - * @{ - */ - -/** - * \file - * uIP packet forwarding header file. - * \author Adam Dunkels - */ - -/* - * 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 - * - * $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/components/net/uip/uip/uip-neighbor.c b/components/net/uip/uip/uip-neighbor.c deleted file mode 100644 index 739c03e9c1..0000000000 --- a/components/net/uip/uip/uip-neighbor.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * 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 - */ - -#include "uip-neighbor.h" - -#include - -#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/components/net/uip/uip/uip-neighbor.h b/components/net/uip/uip/uip-neighbor.h deleted file mode 100644 index d3b351c277..0000000000 --- a/components/net/uip/uip/uip-neighbor.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * 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 - */ - -#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/components/net/uip/uip/uip-split.c b/components/net/uip/uip/uip-split.c deleted file mode 100644 index a910ee621c..0000000000 --- a/components/net/uip/uip/uip-split.c +++ /dev/null @@ -1,136 +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 uIP TCP/IP stack - * - * Author: Adam Dunkels - * - * $Id: uip-split.c,v 1.2 2006/06/12 08:00:30 adam Exp $ - */ - -#include - -#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/components/net/uip/uip/uip-split.h b/components/net/uip/uip/uip-split.h deleted file mode 100644 index c2c1789cbc..0000000000 --- a/components/net/uip/uip/uip-split.h +++ /dev/null @@ -1,96 +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 uIP TCP/IP stack - * - * Author: Adam Dunkels - * - * $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 - * - */ - -#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/components/net/uip/uip/uip.c b/components/net/uip/uip/uip.c deleted file mode 100644 index d81935138f..0000000000 --- a/components/net/uip/uip/uip.c +++ /dev/null @@ -1,1903 +0,0 @@ -#ifdef RT_UIP_DBUG_RPINTF -#define DEBUG_PRINTF(...) rt_kprintf(__VA_ARGS__) -#else -#define DEBUG_PRINTF(...) /*printf(__VA_ARGS__)*/ -#endif - - -/** - * \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 - */ - -/* - * 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 - -/*---------------------------------------------------------------------------*/ -/* 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 = {{0,0x33,0x44,0x55,0x66,0x77}}; -#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 */ - -volatile u8_t *uip_appdata; /* The uip_appdata pointer points to - application data. */ -volatile u8_t *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 -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 uip_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 : uip_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 : uip_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 0; - 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 == uip_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 = uip_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 == uip_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) { //告诉uIP，有一个连接必须不断被轮询 - 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) {//如果连接没有被关闭，则看有无数据需要发送 - /* 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)) {//如果有数据需要发送 - 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: //需要发送同步字 - /* 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) { //如果建立了连接 - /* If there was no need for a retransmission, we poll the - application for new data. */ - uip_flags = UIP_POLL; //这里设置不断被轮询的标志 - 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 -//如果收到IP包，则从这里开始 - /* 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 -uip_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((void*)uip_sappdata, (data), uip_slen); - } - } -} -/** @} */ diff --git a/components/net/uip/uip/uip.h b/components/net/uip/uip/uip.h deleted file mode 100644 index fd90db980c..0000000000 --- a/components/net/uip/uip/uip.h +++ /dev/null @@ -1,1602 +0,0 @@ - -/** - * \addtogroup uip - * @{ - */ - -/** - * \file - * Header file for the uIP TCP/IP stack. - * \author Adam Dunkels - * - * 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 uip_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 uip_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 uip_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) (uip_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) (uip_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) (uip_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) (uip_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 uip_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 uip_htons -u16_t uip_htons(u16_t val); -#endif /* uip_htons */ -#ifndef ntohs -#define ntohs uip_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 volatile u8_t *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/components/net/uip/uip/uip_arch.h b/components/net/uip/uip/uip_arch.h deleted file mode 100644 index 71fd84bf3c..0000000000 --- a/components/net/uip/uip/uip_arch.h +++ /dev/null @@ -1,138 +0,0 @@ -/** - * \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 - */ - -/* - * 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/components/net/uip/uip/uip_arp.c b/components/net/uip/uip/uip_arp.c deleted file mode 100644 index 75ade64921..0000000000 --- a/components/net/uip/uip/uip_arp.c +++ /dev/null @@ -1,423 +0,0 @@ -/** - * \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 - * - */ - -/* - * 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 - -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/components/net/uip/uip/uip_arp.h b/components/net/uip/uip/uip_arp.h deleted file mode 100644 index e32594da2c..0000000000 --- a/components/net/uip/uip/uip_arp.h +++ /dev/null @@ -1,144 +0,0 @@ -/** - * \addtogroup uip - * @{ - */ - -/** - * \addtogroup uiparp - * @{ - */ - -/** - * \file - * Macros and definitions for the ARP module. - * \author Adam Dunkels - */ - - -/* - * 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/components/net/uip/uip/uip_clock.h b/components/net/uip/uip/uip_clock.h deleted file mode 100644 index f34d78fd64..0000000000 --- a/components/net/uip/uip/uip_clock.h +++ /dev/null @@ -1,88 +0,0 @@ -/** - * \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 - * - * $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/components/net/uip/uip/uip_timer.c b/components/net/uip/uip/uip_timer.c deleted file mode 100644 index 4cd4288196..0000000000 --- a/components/net/uip/uip/uip_timer.c +++ /dev/null @@ -1,197 +0,0 @@ -/** - * \addtogroup timer - * @{ - */ - -/** - * \file - * Timer library implementation. - * \author - * Adam Dunkels - */ - -/* - * 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 - * - * $Id: timer.c,v 1.2 2006/06/12 08:00:30 adam Exp $ - */ - -#include "uip_clock.h" -#include "uip_timer.h" -//#include "rtconfig.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. - * - */ -#include "rtdef.h" -#include "uip-conf.h" -#include "uip.h" - -/* eth rx/tx thread */ -static struct rt_mailbox uip_mbox; -static struct rt_thread aa; - -static char uip_timeout_mb_pool[4 * 4]; -extern u16_t uip_len, uip_slen; - -void uip_timeout_entry2(void* parameter) -{ - - -} -void uip_timeout_entry(void* parameter)//由于TIMEOUT函数，不参与调度 -{ - // struct timer periodic_timer, arp_timer; - static uint8_t cnt; - int i; - /* post message to ethernet thread */ - - //if ((rt_sem_take(msg,RT_WAITING_NO)) != -RT_ETIMEOUT) - //if (timer_expired(&periodic_timer)) //5s enter once - { - //timer_reset(&periodic_timer); - for (i = 0; i < UIP_CONNS; i++) - { - uip_periodic(i); - /* If the above function invocation resulted in data that - should be sent out on the network, the global variable - uip_len is set to a value > 0. */ - if (uip_len > 0) - { - uip_arp_out(); - TransmitPacket(); - } - } -#if UIP_UDP - for (i = 0; i < UIP_UDP_CONNS; i++) // - { - uip_udp_periodic(i); - /* If the above function invocation resulted in data that - should be sent out on the network, the global variable - uip_len is set to a value > 0. */ - if (uip_len > 0) - { - uip_arp_out(); - TransmitPacket(); - } - } -#endif /* UIP_UDP */ - - /* Call the ARP timer function every 10 seconds. */ - //if (timer_expired(&arp_timer)) - if (++cnt >= 2) //t - { - //timer_reset(&arp_timer); - uip_arp_timer(); - cnt = 0; - } - } - -} -int -timer_expired(struct timer *t) -{//潜在隐形bug - if ((clock_time() - t->start) >= (clock_time_t)t->interval) - { - //rt_mb_send(mbox,& - } - -} -/*---------------------------------------------------------------------------*/ - -/** @} */ diff --git a/components/net/uip/uip/uip_timer.h b/components/net/uip/uip/uip_timer.h deleted file mode 100644 index ce3bd74ae8..0000000000 --- a/components/net/uip/uip/uip_timer.h +++ /dev/null @@ -1,86 +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 - */ - -/* - * 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 - * - * $Id: timer.h,v 1.3 2006/06/11 21:46:39 adam Exp $ - */ -#ifndef __TIMER_H__ -#define __TIMER_H__ - -#include "uip_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/components/net/uip/uip/uiplib.c b/components/net/uip/uip/uiplib.c deleted file mode 100644 index cb5af2cd26..0000000000 --- a/components/net/uip/uip/uiplib.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * 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/components/net/uip/uip/uiplib.h b/components/net/uip/uip/uiplib.h deleted file mode 100644 index c676849efc..0000000000 --- a/components/net/uip/uip/uiplib.h +++ /dev/null @@ -1,71 +0,0 @@ -/** - * \file - * Various uIP library functions. - * \author - * Adam Dunkels - * - */ - -/* - * 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/components/net/uip/uip/uipopt.h b/components/net/uip/uip/uipopt.h deleted file mode 100644 index b1ef8e560f..0000000000 --- a/components/net/uip/uip/uipopt.h +++ /dev/null @@ -1,539 +0,0 @@ -/** - * \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 - * - * 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__ */ -- GitLab