Diff: libs/Network/uip/uip/uip-split.c

Revision:

3:f151d08d335c

Parent:

2:1df0b61d3b5a

--- a/libs/Network/uip/uip/uip-split.c	Fri Feb 28 18:52:52 2014 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,152 +0,0 @@
-//#pragma GCC diagnostic ignored "-Wredundant-decls"
-#pragma GCC diagnostic ignored "-Wstrict-aliasing"
-#pragma GCC diagnostic ignored "-Wcast-align"
-#pragma GCC diagnostic ignored "-Wcast-qual"
-
-/*
- * Copyright (c) 2004, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * $Id: uip-split.c,v 1.2 2006/06/12 08:00:30 adam Exp $
- */
-
-#include "stdio.h"
-#include <string.h>
-
-#include "uip-split.h"
-#include "uip.h"
-//#include "uip-fw.h"
-//#include "uip_arch.h"
-
-void uip_add32(u8_t *op32, u16_t op16);
-void tcpip_output();
-
-#define BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
-
-#ifdef UIP_SPLIT_CONF_SIZE
-#define UIP_SPLIT_SIZE UIP_SPLIT_CONF_SIZE
-#else /* UIP_SPLIT_CONF_SIZE */
-#define UIP_SPLIT_SIZE UIP_TCP_MSS
-#endif /* UIP_SPLIT_CONF_SIZE */
-
-/*-----------------------------------------------------------------------------*/
-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_SPLIT_SIZE + UIP_TCPIP_HLEN) {
-
-        tcplen = uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN;
-        /* Split the segment in two. If the original packet length was
-           odd, we make the second packet one byte larger. */
-        len1 = len2 = tcplen / 2;
-        if (len1 + len2 < tcplen) {
-            ++len2;
-        }
-
-        /* Create the first packet. This is done by altering the length
-           field of the IP header and updating the checksums. */
-        uip_len = len1 + UIP_TCPIP_HLEN;
-#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 */
-
-        uip_len += UIP_LLH_LEN;
-
-        /* 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 */
-
-        uip_len += UIP_LLH_LEN;
-        /* Transmit the second packet. */
-        /*    uip_fw_output();*/
-        tcpip_output();
-    } else {
-        /*    uip_fw_output();*/
-        tcpip_output();
-    }
-
-}
-/*-----------------------------------------------------------------------------*/