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-rw-r--r--nuttx/net/uip/uip_tcpsend.c369
1 files changed, 0 insertions, 369 deletions
diff --git a/nuttx/net/uip/uip_tcpsend.c b/nuttx/net/uip/uip_tcpsend.c
deleted file mode 100644
index 7051d7621..000000000
--- a/nuttx/net/uip/uip_tcpsend.c
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@@ -1,369 +0,0 @@
-/****************************************************************************
- * net/uip/uip_tcpsend.c
- *
- * Copyright (C) 2007-2010, 2012 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Adapted for NuttX from logic in uIP which also has a BSD-like license:
- *
- * Original author Adam Dunkels <adam@dunkels.com>
- * Copyright () 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.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#if defined(CONFIG_NET) && defined(CONFIG_NET_TCP)
-
-#include <stdint.h>
-#include <string.h>
-#include <debug.h>
-
-#include <nuttx/net/uip/uipopt.h>
-#include <nuttx/net/uip/uip.h>
-#include <nuttx/net/uip/uip-arch.h>
-
-#include "uip_internal.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#define BUF ((struct uip_tcpip_hdr *)&dev->d_buf[UIP_LLH_LEN])
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: uip_tcpsendcomplete
- *
- * Description:
- * Complete the final portions of the send operation. This function sets
- * up IP header and computes the TCP checksum
- *
- * Parameters:
- * dev - The device driver structure to use in the send operation
- *
- * Return:
- * None
- *
- * Assumptions:
- * Called from the interrupt level or with interrupts disabled.
- *
- ****************************************************************************/
-
-static void uip_tcpsendcomplete(struct uip_driver_s *dev)
-{
- struct uip_tcpip_hdr *pbuf = BUF;
-
- pbuf->ttl = UIP_TTL;
-
-#ifdef CONFIG_NET_IPv6
-
- /* For IPv6, the IP length field does not include the IPv6 IP header
- * length.
- */
-
- pbuf->len[0] = ((dev->d_len - UIP_IPH_LEN) >> 8);
- pbuf->len[1] = ((dev->d_len - UIP_IPH_LEN) & 0xff);
-
-#else /* CONFIG_NET_IPv6 */
-
- pbuf->len[0] = (dev->d_len >> 8);
- pbuf->len[1] = (dev->d_len & 0xff);
-
-#endif /* CONFIG_NET_IPv6 */
-
- pbuf->urgp[0] = pbuf->urgp[1] = 0;
-
- /* Calculate TCP checksum. */
-
- pbuf->tcpchksum = 0;
- pbuf->tcpchksum = ~(uip_tcpchksum(dev));
-
-#ifdef CONFIG_NET_IPv6
-
- pbuf->vtc = 0x60;
- pbuf->tcf = 0x00;
- pbuf->flow = 0x00;
-
-#else /* CONFIG_NET_IPv6 */
-
- pbuf->vhl = 0x45;
- pbuf->tos = 0;
- pbuf->ipoffset[0] = 0;
- pbuf->ipoffset[1] = 0;
- ++g_ipid;
- pbuf->ipid[0] = g_ipid >> 8;
- pbuf->ipid[1] = g_ipid & 0xff;
-
- /* Calculate IP checksum. */
-
- pbuf->ipchksum = 0;
- pbuf->ipchksum = ~(uip_ipchksum(dev));
-
-#endif /* CONFIG_NET_IPv6 */
-
- nllvdbg("Outgoing TCP packet length: %d (%d)\n",
- dev->d_len, (pbuf->len[0] << 8) | pbuf->len[1]);
-
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.tcp.sent++;
- uip_stat.ip.sent++;
-#endif
-}
-
-/****************************************************************************
- * Name: uip_tcpsendcommon
- *
- * Description:
- * 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.
- *
- * Parameters:
- * dev - The device driver structure to use in the send operation
- * conn - The TCP connection structure holding connection information
- *
- * Return:
- * None
- *
- * Assumptions:
- * Called from the interrupt level or with interrupts disabled.
- *
- ****************************************************************************/
-
-static void uip_tcpsendcommon(struct uip_driver_s *dev, struct uip_conn *conn)
-{
- struct uip_tcpip_hdr *pbuf = BUF;
-
- memcpy(pbuf->ackno, conn->rcvseq, 4);
- memcpy(pbuf->seqno, conn->sndseq, 4);
-
- pbuf->proto = UIP_PROTO_TCP;
- pbuf->srcport = conn->lport;
- pbuf->destport = conn->rport;
-
- uiphdr_ipaddr_copy(pbuf->srcipaddr, &dev->d_ipaddr);
- uiphdr_ipaddr_copy(pbuf->destipaddr, &conn->ripaddr);
-
- if (conn->tcpstateflags & UIP_STOPPED)
- {
- /* If the connection has issued uip_stop(), we advertise a zero
- * window so that the remote host will stop sending data.
- */
-
- pbuf->wnd[0] = 0;
- pbuf->wnd[1] = 0;
- }
- else
- {
- pbuf->wnd[0] = ((CONFIG_NET_RECEIVE_WINDOW) >> 8);
- pbuf->wnd[1] = ((CONFIG_NET_RECEIVE_WINDOW) & 0xff);
- }
-
- /* Finish the IP portion of the message, calculate checksums and send
- * the message.
- */
-
- uip_tcpsendcomplete(dev);
-
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: uip_tcpsend
- *
- * Description:
- * Setup to send a TCP packet
- *
- * Parameters:
- * dev - The device driver structure to use in the send operation
- * conn - The TCP connection structure holding connection information
- * flags - flags to apply to the TCP header
- * len - length of the message
- *
- * Return:
- * None
- *
- * Assumptions:
- * Called from the interrupt level or with interrupts disabled.
- *
- ****************************************************************************/
-
-void uip_tcpsend(struct uip_driver_s *dev, struct uip_conn *conn,
- uint16_t flags, uint16_t len)
-{
- struct uip_tcpip_hdr *pbuf = BUF;
-
- pbuf->flags = flags;
- dev->d_len = len;
- pbuf->tcpoffset = (UIP_TCPH_LEN / 4) << 4;
- uip_tcpsendcommon(dev, conn);
-}
-
-/****************************************************************************
- * Name: uip_tcpreset
- *
- * Description:
- * Send a TCP reset (no-data) message
- *
- * Parameters:
- * dev - The device driver structure to use in the send operation
- *
- * Return:
- * None
- *
- * Assumptions:
- * Called from the interrupt level or with interrupts disabled.
- *
- ****************************************************************************/
-
-void uip_tcpreset(struct uip_driver_s *dev)
-{
- struct uip_tcpip_hdr *pbuf = BUF;
-
- uint16_t tmp16;
- uint8_t seqbyte;
-
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.tcp.rst++;
-#endif
-
- pbuf->flags = TCP_RST | TCP_ACK;
- dev->d_len = UIP_IPTCPH_LEN;
- pbuf->tcpoffset = 5 << 4;
-
- /* Flip the seqno and ackno fields in the TCP header. */
-
- seqbyte = pbuf->seqno[3];
- pbuf->seqno[3] = pbuf->ackno[3];
- pbuf->ackno[3] = seqbyte;
-
- seqbyte = pbuf->seqno[2];
- pbuf->seqno[2] = pbuf->ackno[2];
- pbuf->ackno[2] = seqbyte;
-
- seqbyte = pbuf->seqno[1];
- pbuf->seqno[1] = pbuf->ackno[1];
- pbuf->ackno[1] = seqbyte;
-
- seqbyte = pbuf->seqno[0];
- pbuf->seqno[0] = pbuf->ackno[0];
- pbuf->ackno[0] = seqbyte;
-
- /* 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 (++(pbuf->ackno[3]) == 0)
- {
- if (++(pbuf->ackno[2]) == 0)
- {
- if (++(pbuf->ackno[1]) == 0)
- {
- ++(pbuf->ackno[0]);
- }
- }
- }
-
- /* Swap port numbers. */
-
- tmp16 = pbuf->srcport;
- pbuf->srcport = pbuf->destport;
- pbuf->destport = tmp16;
-
- /* Swap IP addresses. */
-
- uiphdr_ipaddr_copy(pbuf->destipaddr, pbuf->srcipaddr);
- uiphdr_ipaddr_copy(pbuf->srcipaddr, &dev->d_ipaddr);
-
- /* And send out the RST packet */
-
- uip_tcpsendcomplete(dev);
-}
-
-/****************************************************************************
- * Name: uip_tcpack
- *
- * Description:
- * Send the SYN or SYNACK response.
- *
- * Parameters:
- * dev - The device driver structure to use in the send operation
- * conn - The TCP connection structure holding connection information
- * ack - The ACK response to send
- *
- * Return:
- * None
- *
- * Assumptions:
- * Called from the interrupt level or with interrupts disabled.
- *
- ****************************************************************************/
-
-void uip_tcpack(struct uip_driver_s *dev, struct uip_conn *conn, uint8_t ack)
-{
- struct uip_tcpip_hdr *pbuf = BUF;
-
- /* Save the ACK bits */
-
- pbuf->flags = ack;
-
- /* We send out the TCP Maximum Segment Size option with our ack. */
-
- pbuf->optdata[0] = TCP_OPT_MSS;
- pbuf->optdata[1] = TCP_OPT_MSS_LEN;
- pbuf->optdata[2] = (UIP_TCP_MSS) / 256;
- pbuf->optdata[3] = (UIP_TCP_MSS) & 255;
- dev->d_len = UIP_IPTCPH_LEN + TCP_OPT_MSS_LEN;
- pbuf->tcpoffset = ((UIP_TCPH_LEN + TCP_OPT_MSS_LEN) / 4) << 4;
-
- /* Complete the common portions of the TCP message */
-
- uip_tcpsendcommon(dev, conn);
-}
-
-#endif /* CONFIG_NET && CONFIG_NET_TCP */
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