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/****************************************************************************
* include/nuttx/net/icmpv6.h
* Header file for the uIP ICMPv6 stack.
*
* Copyright (C) 2007-2009, 2012, 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* This logic was leveraged from uIP which also has a BSD-style license:
*
* Author Adam Dunkels <adam@dunkels.com>
* Copyright (c) 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.
*
****************************************************************************/
#ifndef __INCLUDE_NUTTX_NET_ICMPv6_H
#define __INCLUDE_NUTTX_NET_ICMPv6_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/net/netconfig.h>
#include <nuttx/net/ip.h>
#include <nuttx/net/tcp.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* ICMP definitions */
/* ICMP Message Types */
#define ICMPv6_ECHO_REPLY 0 /* RFC 792 */
#define ICMPv6_DEST_UNREACHABLE 3 /* RFC 792 */
#define ICMPv6_SRC_QUENCH 4 /* RFC 792 */
#define ICMPv6_REDIRECT 5 /* RFC 792 */
#define ICMPv6_ALT_HOST_ADDRESS 6
#define ICMPv6_ECHO_REQUEST 8 /* RFC 792 */
#define ICMPv6_ROUTER_ADVERTISEMENT 9 /* RFC 1256 */
#define ICMPv6_ROUTER_SOLICITATION 10 /* RFC 1256 */
#define ICMPv6_TIME_EXCEEDED 11 /* RFC 792 */
#define ICMPv6_PARAMETER_PROBLEM 12
#define ICMPv6_TIMESTAMP_REQUEST 13
#define ICMPv6_TIMESTAMP_REPLY 14
#define ICMPv6_INFORMATION_REQUEST 15
#define ICMPv6_INFORMATION_REPLY 16
#define ICMPv6_ADDRESS_MASK_REQUEST 17
#define ICMPv6_ADDRESS_MASK_REPLY 18
#define ICMPv6_TRACEROUTE 30
#define ICMPv6_CONVERSION_ERROR 31
#define ICMPv6_MOBILE_HOST_REDIRECT 32
#define ICMPv6_IPV6_WHEREAREYOU 33
#define ICMPv6_IPV6_IAMHERE 34
#define ICMPv6_MOBILE_REGIS_REQUEST 35
#define ICMPv6_MOBILE_REGIS_REPLY 36
#define ICMPv6_DOMAIN_NAME_REQUEST 37
#define ICMPv6_DOMAIN_NAME_REPLY 38
#define ICMPv6_SKIP_DISCOVERY_PROTO 39
#define ICMPv6_PHOTURIS_SECURITY_FAIL 40
#define ICMPv6_EXP_MOBILE_PROTO 41 /* RFC 4065 */
#define ICMPv6_ECHO_REPLY 129
#define ICMPv6_ECHO_REQUEST 128
#define ICMPv6_NEIGHBOR_SOLICITATION 135
#define ICMPv6_NEIGHBOR_ADVERTISEMENT 136
#define ICMPv6_FLAG_S (1 << 6)
#define ICMPv6_OPTION_SOURCE_LINK_ADDRESS 1
#define ICMPv6_OPTION_TARGET_LINK_ADDRESS 2
/* Header sizes */
#define ICMPv6_HDRLEN 4 /* Size of ICMPv6 header */
#define IPICMPv6_HDRLEN (ICMPv6_HDRLEN + IPv6_HDRLEN) /* Size of IPv6 + ICMPv6 header */
/****************************************************************************
* Public Type Definitions
****************************************************************************/
/* The ICMP and IP headers */
struct icmpv6_iphdr_s
{
/* IPv6 Ip header */
uint8_t vtc; /* Bits 0-3: version, bits 4-7: traffic class (MS) */
uint8_t tcf; /* Bits 0-3: traffic class (LS), bits 4-7: flow label (MS) */
uint16_t flow; /* 16-bit flow label (LS) */
uint8_t len[2]; /* 16-bit Payload length */
uint8_t proto; /* 8-bit Next header (same as IPv4 protocol field) */
uint8_t ttl; /* 8-bit Hop limit (like IPv4 TTL field) */
net_ipv6addr_t srcipaddr; /* 128-bit Source address */
net_ipv6addr_t destipaddr; /* 128-bit Destination address */
/* ICMPv6 header */
uint8_t type; /* Defines the format of the ICMP message */
uint8_t icode; /* Further qualifies the ICMP messages */
uint16_t icmpv6chksum; /* Checksum of ICMP header and data */
/* Data following the ICMP header contains the data specific to the
* message type indicated by the Type and Code fields.
*/
/* ICMPv6_ECHO_REQUEST and ICMPv6_ECHO_REPLY data */
uint8_t flags;
uint8_t reserved1;
uint8_t reserved2;
uint8_t reserved3;
uint8_t icmpv6data[16];
uint8_t options[1];
};
/* The structure holding the ICMP statistics that are gathered if
* CONFIG_NET_STATISTICS is defined.
*/
#ifdef CONFIG_NET_STATISTICS
struct icmpv6_stats_s
{
net_stats_t drop; /* Number of dropped ICMP packets */
net_stats_t recv; /* Number of received ICMP packets */
net_stats_t sent; /* Number of sent ICMP packets */
net_stats_t typeerr; /* Number of ICMP packets with a wrong type */
};
#endif
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: imcp_ping
*
* Description:
* Send a ECHO request and wait for the ECHO response
*
* Parameters:
* addr - The IP address of the peer to send the ICMP ECHO request to
* in network order.
* id - The ID to use in the ICMP ECHO request. This number should be
* unique; only ECHO responses with this matching ID will be
* processed (host order)
* seqno - The sequence number used in the ICMP ECHO request. NOT used
* to match responses (host order)
* dsecs - Wait up to this many deci-seconds for the ECHO response to be
* returned (host order).
*
* Return:
* seqno of received ICMP ECHO with matching ID (may be different
* from the seqno argument (may be a delayed response from an earlier
* ping with the same ID). Or a negated errno on any failure.
*
* Assumptions:
* Called from the user level with interrupts enabled.
*
****************************************************************************/
int icmpv6_ping(net_ipv6addr_t addr, uint16_t id, uint16_t seqno,
uint16_t datalen, int dsecs);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __INCLUDE_NUTTX_NET_ICMPv6_H */
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