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-rw-r--r--Projects/Webserver/Lib/uip/uip-split.c282
1 files changed, 141 insertions, 141 deletions
diff --git a/Projects/Webserver/Lib/uip/uip-split.c b/Projects/Webserver/Lib/uip/uip-split.c
index 5924fabe5..9b1d1ce88 100644
--- a/Projects/Webserver/Lib/uip/uip-split.c
+++ b/Projects/Webserver/Lib/uip/uip-split.c
@@ -1,141 +1,141 @@
-/*
- * Copyright (c) 2004, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file is part of the Contiki operating system.
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * $Id: uip-split.c,v 1.2 2008/10/14 13:39:12 julienabeille Exp $
- */
-
-#include "uip-split.h"
-
-
-#define BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
-
-/*-----------------------------------------------------------------------------*/
-void
-uip_split_output(void)
-{
-#if UIP_TCP
- u16_t tcplen, len1, len2;
-
- /* We only try to split maximum sized TCP segments. */
- if(BUF->proto == UIP_PROTO_TCP && uip_len == UIP_BUFSIZE) {
-
- tcplen = uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN;
- /* Split the segment in two. If the original packet length was
- odd, we make the second packet one byte larger. */
- len1 = len2 = tcplen / 2;
- if(len1 + len2 < tcplen) {
- ++len2;
- }
-
- /* Create the first packet. This is done by altering the length
- field of the IP header and updating the checksums. */
- uip_len = len1 + UIP_TCPIP_HLEN + UIP_LLH_LEN;
-#if UIP_CONF_IPV6
- /* For IPv6, the IP length field does not include the IPv6 IP header
- length. */
- BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
- BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
-#else /* UIP_CONF_IPV6 */
- BUF->len[0] = (uip_len - UIP_LLH_LEN) >> 8;
- BUF->len[1] = (uip_len - UIP_LLH_LEN) & 0xff;
-#endif /* UIP_CONF_IPV6 */
-
- /* Recalculate the TCP checksum. */
- BUF->tcpchksum = 0;
- BUF->tcpchksum = ~(uip_tcpchksum());
-
-#if !UIP_CONF_IPV6
- /* Recalculate the IP checksum. */
- BUF->ipchksum = 0;
- BUF->ipchksum = ~(uip_ipchksum());
-#endif /* UIP_CONF_IPV6 */
-
- /* Transmit the first packet. */
-#if UIP_CONF_IPV6
- tcpip_ipv6_output();
-#else
- RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, uip_buf, uip_len);
-#endif /* UIP_CONF_IPV6 */
-
- /* Now, create the second packet. To do this, it is not enough to
- just alter the length field, but we must also update the TCP
- sequence number and point the uip_appdata to a new place in
- memory. This place is detemined by the length of the first
- packet (len1). */
- uip_len = len2 + UIP_TCPIP_HLEN + UIP_LLH_LEN;
-#if UIP_CONF_IPV6
- /* For IPv6, the IP length field does not include the IPv6 IP header
- length. */
- BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
- BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
-#else /* UIP_CONF_IPV6 */
- BUF->len[0] = (uip_len - UIP_LLH_LEN) >> 8;
- BUF->len[1] = (uip_len - UIP_LLH_LEN) & 0xff;
-#endif /* UIP_CONF_IPV6 */
-
- memcpy(uip_appdata, (u8_t *)uip_appdata + len1, len2);
-
- uip_add32(BUF->seqno, len1);
- BUF->seqno[0] = uip_acc32[0];
- BUF->seqno[1] = uip_acc32[1];
- BUF->seqno[2] = uip_acc32[2];
- BUF->seqno[3] = uip_acc32[3];
-
- /* Recalculate the TCP checksum. */
- BUF->tcpchksum = 0;
- BUF->tcpchksum = ~(uip_tcpchksum());
-
-#if !UIP_CONF_IPV6
- /* Recalculate the IP checksum. */
- BUF->ipchksum = 0;
- BUF->ipchksum = ~(uip_ipchksum());
-#endif /* UIP_CONF_IPV6 */
-
- /* Transmit the second packet. */
-#if UIP_CONF_IPV6
- tcpip_ipv6_output();
-#else
- RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, uip_buf, uip_len);
-#endif /* UIP_CONF_IPV6 */
- return;
- }
-#endif /* UIP_TCP */
-
- /* uip_fw_output();*/
-#if UIP_CONF_IPV6
- tcpip_ipv6_output();
-#else
- RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, uip_buf, uip_len);
-#endif /* UIP_CONF_IPV6 */
-}
-
-/*-----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) 2004, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ * $Id: uip-split.c,v 1.2 2008/10/14 13:39:12 julienabeille Exp $
+ */
+
+#include "uip-split.h"
+
+
+#define BUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
+
+/*-----------------------------------------------------------------------------*/
+void
+uip_split_output(void)
+{
+#if UIP_TCP
+ u16_t tcplen, len1, len2;
+
+ /* We only try to split maximum sized TCP segments. */
+ if(BUF->proto == UIP_PROTO_TCP && uip_len == UIP_BUFSIZE) {
+
+ tcplen = uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN;
+ /* Split the segment in two. If the original packet length was
+ odd, we make the second packet one byte larger. */
+ len1 = len2 = tcplen / 2;
+ if(len1 + len2 < tcplen) {
+ ++len2;
+ }
+
+ /* Create the first packet. This is done by altering the length
+ field of the IP header and updating the checksums. */
+ uip_len = len1 + UIP_TCPIP_HLEN + UIP_LLH_LEN;
+#if UIP_CONF_IPV6
+ /* For IPv6, the IP length field does not include the IPv6 IP header
+ length. */
+ BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
+ BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
+#else /* UIP_CONF_IPV6 */
+ BUF->len[0] = (uip_len - UIP_LLH_LEN) >> 8;
+ BUF->len[1] = (uip_len - UIP_LLH_LEN) & 0xff;
+#endif /* UIP_CONF_IPV6 */
+
+ /* Recalculate the TCP checksum. */
+ BUF->tcpchksum = 0;
+ BUF->tcpchksum = ~(uip_tcpchksum());
+
+#if !UIP_CONF_IPV6
+ /* Recalculate the IP checksum. */
+ BUF->ipchksum = 0;
+ BUF->ipchksum = ~(uip_ipchksum());
+#endif /* UIP_CONF_IPV6 */
+
+ /* Transmit the first packet. */
+#if UIP_CONF_IPV6
+ tcpip_ipv6_output();
+#else
+ RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, uip_buf, uip_len);
+#endif /* UIP_CONF_IPV6 */
+
+ /* Now, create the second packet. To do this, it is not enough to
+ just alter the length field, but we must also update the TCP
+ sequence number and point the uip_appdata to a new place in
+ memory. This place is detemined by the length of the first
+ packet (len1). */
+ uip_len = len2 + UIP_TCPIP_HLEN + UIP_LLH_LEN;
+#if UIP_CONF_IPV6
+ /* For IPv6, the IP length field does not include the IPv6 IP header
+ length. */
+ BUF->len[0] = ((uip_len - UIP_IPH_LEN) >> 8);
+ BUF->len[1] = ((uip_len - UIP_IPH_LEN) & 0xff);
+#else /* UIP_CONF_IPV6 */
+ BUF->len[0] = (uip_len - UIP_LLH_LEN) >> 8;
+ BUF->len[1] = (uip_len - UIP_LLH_LEN) & 0xff;
+#endif /* UIP_CONF_IPV6 */
+
+ memcpy(uip_appdata, (u8_t *)uip_appdata + len1, len2);
+
+ uip_add32(BUF->seqno, len1);
+ BUF->seqno[0] = uip_acc32[0];
+ BUF->seqno[1] = uip_acc32[1];
+ BUF->seqno[2] = uip_acc32[2];
+ BUF->seqno[3] = uip_acc32[3];
+
+ /* Recalculate the TCP checksum. */
+ BUF->tcpchksum = 0;
+ BUF->tcpchksum = ~(uip_tcpchksum());
+
+#if !UIP_CONF_IPV6
+ /* Recalculate the IP checksum. */
+ BUF->ipchksum = 0;
+ BUF->ipchksum = ~(uip_ipchksum());
+#endif /* UIP_CONF_IPV6 */
+
+ /* Transmit the second packet. */
+#if UIP_CONF_IPV6
+ tcpip_ipv6_output();
+#else
+ RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, uip_buf, uip_len);
+#endif /* UIP_CONF_IPV6 */
+ return;
+ }
+#endif /* UIP_TCP */
+
+ /* uip_fw_output();*/
+#if UIP_CONF_IPV6
+ tcpip_ipv6_output();
+#else
+ RNDIS_Host_SendPacket(&Ethernet_RNDIS_Interface, uip_buf, uip_len);
+#endif /* UIP_CONF_IPV6 */
+}
+
+/*-----------------------------------------------------------------------------*/
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