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incubator-nuttx/net/utils/net_icmpchksum.c

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6loWPAN: Forgot to add files with last commit.
2017-04-03 04:45:14 +08:00
/****************************************************************************
* net/utils/net_icmpchksum.c
*
* Copyright (C) 2007-2010, 2012, 2014-2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifdef CONFIG_NET
#include <stdint.h>
#include <debug.h>
#include <nuttx/net/netconfig.h>
#include <nuttx/net/netdev.h>
#include <nuttx/net/icmp.h>
#include "utils/utils.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define ICMPBUF ((struct icmp_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
#define ICMPv6BUF ((struct icmp_ipv6hdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: icmp_chksum
*
* Description:
* Calculate the checksum of the ICMP message
*
****************************************************************************/
This change adds support for semi-standard IPPROTO_ICMP AF_INET datagram sockets. This replaces the old ad hoc, nonstandard way of implementing ping with a more standard, socket interface. Squashed commit of the following: net/icmp: Finishes off icmp_recvfrom(). net/icmp: Add readahead support for IPPROTO_ICMP sockets. net/icmp: Add poll() support for IPPROTO_ICMP sockets. net/icmp: Add a connection structure for IPPROTO_ICMP sockets. net/icmp: Implements sendto for the IPPROTO_ICMP socket. net/icmp: Move icmp_sendto() and icmp_recvfrom() to separate files. They are likely to be complex (when they are implemented). net/icmp: Hook IPPROTO_ICMP sockets into network. Fix some naming collisions. Still missing basic ICMP send/receive logic. configs: apps/system/ping current need poll() enabled. configs: All defconfig files that use to enable low-level support must now enabled CONFIG_SYSTEM_PING. net/icmp: Adds basic build framework to support IPPROTO_ICMP sockets.
2017-10-23 22:45:12 +08:00
#if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_SOCKET)
6loWPAN: Forgot to add files with last commit.
2017-04-03 04:45:14 +08:00
uint16_t icmp_chksum(FAR struct net_driver_s *dev, int len)
{
FAR struct icmp_iphdr_s *icmp = ICMPBUF;
return net_chksum((FAR uint16_t *)&icmp->type, len);
}
This change adds support for semi-standard IPPROTO_ICMP AF_INET datagram sockets. This replaces the old ad hoc, nonstandard way of implementing ping with a more standard, socket interface. Squashed commit of the following: net/icmp: Finishes off icmp_recvfrom(). net/icmp: Add readahead support for IPPROTO_ICMP sockets. net/icmp: Add poll() support for IPPROTO_ICMP sockets. net/icmp: Add a connection structure for IPPROTO_ICMP sockets. net/icmp: Implements sendto for the IPPROTO_ICMP socket. net/icmp: Move icmp_sendto() and icmp_recvfrom() to separate files. They are likely to be complex (when they are implemented). net/icmp: Hook IPPROTO_ICMP sockets into network. Fix some naming collisions. Still missing basic ICMP send/receive logic. configs: apps/system/ping current need poll() enabled. configs: All defconfig files that use to enable low-level support must now enabled CONFIG_SYSTEM_PING. net/icmp: Adds basic build framework to support IPPROTO_ICMP sockets.
2017-10-23 22:45:12 +08:00
#endif /* CONFIG_NET_ICMP && CONFIG_NET_ICMP_SOCKET */
6loWPAN: Forgot to add files with last commit.
2017-04-03 04:45:14 +08:00
/****************************************************************************
* Name: icmpv6_chksum
*
* Description:
* Calculate the checksum of the ICMPv6 message
*
****************************************************************************/
#ifdef CONFIG_NET_ICMPv6
uint16_t icmpv6_chksum(FAR struct net_driver_s *dev)
{
return ipv6_upperlayer_chksum(dev, IP_PROTO_ICMP6);
}
#endif
#endif /* CONFIG_NET */