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Diffstat (limited to 'nuttx/net/uip/uip_icmpinput.c')
-rw-r--r--nuttx/net/uip/uip_icmpinput.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/nuttx/net/uip/uip_icmpinput.c b/nuttx/net/uip/uip_icmpinput.c
deleted file mode 100644
index cea2ae4fc..000000000
--- a/nuttx/net/uip/uip_icmpinput.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/****************************************************************************
- * net/uip/uip_icmpinput.c
- * Handling incoming ICMP/ICMP6 input
- *
- * Copyright (C) 2007-2009, 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>
-#ifdef CONFIG_NET
-
-#include <stdint.h>
-#include <debug.h>
-
-#include <net/if.h>
-#include <nuttx/net/uip/uipopt.h>
-#include <nuttx/net/uip/uip.h>
-#include <nuttx/net/uip/uip-arch.h>
-
-#include "uip_internal.h"
-
-#ifdef CONFIG_NET_ICMP
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#define ICMPBUF ((struct uip_icmpip_hdr *)&dev->d_buf[UIP_LLH_LEN])
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Variables
- ****************************************************************************/
-
-#ifdef CONFIG_NET_ICMP_PING
-struct uip_callback_s *g_echocallback = NULL;
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: uip_icmpinput
- *
- * Description:
- * Handle incoming ICMP/ICMP6 input
- *
- * Parameters:
- * dev - The device driver structure containing the received ICMP/ICMP6
- * packet
- *
- * Return:
- * None
- *
- * Assumptions:
- * Called from the interrupt level or with interrupts disabled.
- *
- ****************************************************************************/
-
-void uip_icmpinput(struct uip_driver_s *dev)
-{
- struct uip_icmpip_hdr *picmp = ICMPBUF;
-
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.icmp.recv++;
-#endif
-
-#ifndef CONFIG_NET_IPv6
- /* ICMPv4 processing code follows. */
-
- /* 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 (picmp->type == ICMP_ECHO_REQUEST)
- {
- /* 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.
- */
-
-#ifdef CONFIG_NET_PINGADDRCONF
- if (dev->d_ipaddr == 0)
- {
- dev->d_ipaddr = picmp->destipaddr;
- }
-#endif
-
- /* Change the ICMP type */
-
- picmp->type = ICMP_ECHO_REPLY;
-
- /* Swap IP addresses. */
-
- uiphdr_ipaddr_copy(picmp->destipaddr, picmp->srcipaddr);
- uiphdr_ipaddr_copy(picmp->srcipaddr, &dev->d_ipaddr);
-
- /* Recalculate the ICMP checksum */
-
-#if 0
- /* The slow way... sum over the ICMP message */
-
- picmp->icmpchksum = 0;
- picmp->icmpchksum = ~uip_icmpchksum(dev, (((uint16_t)picmp->len[0] << 8) | (uint16_t)picmp->len[1]) - UIP_IPH_LEN);
- if (picmp->icmpchksum == 0)
- {
- picmp->icmpchksum = 0xffff;
- }
-#else
- /* The quick way -- Since only the type has changed, just adjust the
- * checksum for the change of type
- */
-
- if( picmp->icmpchksum >= HTONS(0xffff - (ICMP_ECHO_REQUEST << 8)))
- {
- picmp->icmpchksum += HTONS(ICMP_ECHO_REQUEST << 8) + 1;
- }
- else
- {
- picmp->icmpchksum += HTONS(ICMP_ECHO_REQUEST << 8);
- }
-#endif
-
- nllvdbg("Outgoing ICMP packet length: %d (%d)\n",
- dev->d_len, (picmp->len[0] << 8) | picmp->len[1]);
-
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.icmp.sent++;
- uip_stat.ip.sent++;
-#endif
- }
-
- /* If an ICMP echo reply is received then there should also be
- * a thread waiting to received the echo response.
- */
-
-#ifdef CONFIG_NET_ICMP_PING
- else if (picmp->type == ICMP_ECHO_REPLY && g_echocallback)
- {
- (void)uip_callbackexecute(dev, picmp, UIP_ECHOREPLY, g_echocallback);
- }
-#endif
-
- /* Otherwise the ICMP input was not processed */
-
- else
- {
- nlldbg("Unknown ICMP cmd: %d\n", picmp->type);
- goto typeerr;
- }
-
- return;
-
-typeerr:
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.icmp.typeerr++;
- uip_stat.icmp.drop++;
-#endif
- dev->d_len = 0;
-
-#else /* !CONFIG_NET_IPv6 */
-
- /* If we get a neighbor solicitation for our address we should send
- * a neighbor advertisement message back.
- */
-
- if (picmp->type == ICMP6_NEIGHBOR_SOLICITATION)
- {
- if (uip_ipaddr_cmp(picmp->icmp6data, dev->d_ipaddr))
- {
- if (picmp->options[0] == ICMP6_OPTION_SOURCE_LINK_ADDRESS)
- {
- /* Save the sender's address in our neighbor list. */
-
- uiphdr_neighbor_add(picmp->srcipaddr, &(picmp->options[2]));
- }
-
- /* We should now send a neighbor advertisement back to where the
- * neighbor solicication came from.
- */
-
- picmp->type = ICMP6_NEIGHBOR_ADVERTISEMENT;
- picmp->flags = ICMP6_FLAG_S; /* Solicited flag. */
-
- picmp->reserved1 = picmp->reserved2 = picmp->reserved3 = 0;
-
- uiphdr_ipaddr_copy(picmp->destipaddr, picmp->srcipaddr);
- uiphdr_ipaddr_copy(picmp->srcipaddr, &dev->d_ipaddr);
- picmp->options[0] = ICMP6_OPTION_TARGET_LINK_ADDRESS;
- picmp->options[1] = 1; /* Options length, 1 = 8 bytes. */
- memcpy(&(picmp->options[2]), &dev->d_mac, IFHWADDRLEN);
- picmp->icmpchksum = 0;
- picmp->icmpchksum = ~uip_icmp6chksum(dev);
- }
- else
- {
- goto drop;
- }
- }
- else if (picmp->type == ICMP6_ECHO_REQUEST)
- {
- /* 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.
- */
-
- picmp->type = ICMP6_ECHO_REPLY;
-
- uiphdr_ipaddr_copy(picmp->destipaddr, picmp->srcipaddr);
- uiphdr_ipaddr_copy(picmp->srcipaddr, &dev->d_ipaddr);
- picmp->icmpchksum = 0;
- picmp->icmpchksum = ~uip_icmp6chksum(dev);
- }
-
- /* If an ICMP echo reply is received then there should also be
- * a thread waiting to received the echo response.
- */
-
-#ifdef CONFIG_NET_ICMP_PING
- else if (picmp->type == ICMP6_ECHO_REPLY && g_echocallback)
- {
- uint16_t flags = UIP_ECHOREPLY;
-
- if (g_echocallback)
- {
- /* Dispatch the ECHO reply to the waiting thread */
-
- flags = uip_callbackexecute(dev, picmp, flags, g_echocallback);
- }
-
- /* If the ECHO reply was not handled, then drop the packet */
-
- if (flags == UIP_ECHOREPLY)
- {
- /* The ECHO reply was not handled */
-
- goto drop;
- }
- }
-#endif
-
- else
- {
- nlldbg("Unknown ICMP6 cmd: %d\n", picmp->type);
- goto typeerr;
- }
-
- nllvdbg("Outgoing ICMP6 packet length: %d (%d)\n",
- dev->d_len, (picmp->len[0] << 8) | picmp->len[1]);
-
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.icmp.sent++;
- uip_stat.ip.sent++;
-#endif
- return;
-
-typeerr:
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.icmp.typeerr++;
-#endif
-
-drop:
-#ifdef CONFIG_NET_STATISTICS
- uip_stat.icmp.drop++;
-#endif
- dev->d_len = 0;
-
-#endif /* !CONFIG_NET_IPv6 */
-}
-
-#endif /* CONFIG_NET_ICMP */
-#endif /* CONFIG_NET */
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