/*
 ******************************************************************************
 *                     HEADER FILE
 *
 *     Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: icmp6.h,v $ $Revision: 1.3 $
 *     $Source: /home/interpeak/CVSRoot/ipxinc/include/netinet/icmp6.h,v $
 *     $Author: lob $ $Date: 2006-04-10 11:03:29 $
 *     $State: Exp $ $Locker:  $
 *
 *     INTERPEAK_COPYRIGHT_STRING
 *     Design and implementation by Lennart Bang <lob@interpeak.se>
 ******************************************************************************
 */
#ifndef IP_NETINET_ICMP6_H
#define IP_NETINET_ICMP6_H

/*
 ****************************************************************************
 * 1                    DESCRIPTION
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 2                    CONFIGURATION
 ****************************************************************************
 */

#include "ipcom_config.h"


/*
 ****************************************************************************
 * 3                    INCLUDE FILES
 ****************************************************************************
 */

#include "string.h"
#include "sys/types.h"
#include "netinet/in.h"

#ifdef __cplusplus
extern "C" {
#endif

/*
 ****************************************************************************
 * 4                    DEFINES
 ****************************************************************************
 */

#define ICMP6_DST_UNREACH             1
#define ICMP6_PACKET_TOO_BIG          2
#define ICMP6_TIME_EXCEEDED           3
#define ICMP6_PARAM_PROB              4

#define ICMP6_ECHO_REQUEST          128
#define ICMP6_ECHO_REPLY            129
#define ICMP6_MEMBERSHIP_QUERY      130
#define ICMP6_MEMBERSHIP_REPORT     131
#define ICMP6_MEMBERSHIP_REDUCTION  132
#define ND_ROUTER_SOLICIT           133
#define ND_ROUTER_ADVERT            134
#define ND_NEIGHBOR_SOLICIT         135
#define ND_NEIGHBOR_ADVERT          136
#define ND_REDIRECT                 137

#define ND_OPT_SOURCE_LINKADDR        1
#define ND_OPT_TARGET_LINKADDR        2
#define ND_OPT_PREFIX_INFORMATION     3
#define ND_OPT_REDIRECTED_HEADER      4
#define ND_OPT_MTU                    5

#define ND_RA_FLAG_MANAGED         0x80
#define ND_RA_FLAG_OTHER           0x40


/*
 ****************************************************************************
 * 5                    TYPES
 ****************************************************************************
 */

struct icmp6_hdr
{
    Ip_u8     icmp6_type;   /* type field */
    Ip_u8     icmp6_code;   /* code field */
    Ip_u16    icmp6_cksum;  /* checksum field */
    union
    {
        Ip_u32  icmp6_un_data32[1]; /* type-specific field */
        Ip_u16  icmp6_un_data16[2]; /* type-specific field */
        Ip_u8   icmp6_un_data8[4];  /* type-specific field */
    } icmp6_dataun;
};

#define icmp6_data32    icmp6_dataun.icmp6_un_data32
#define icmp6_data16    icmp6_dataun.icmp6_un_data16
#define icmp6_data8     icmp6_dataun.icmp6_un_data8
#define icmp6_pptr      icmp6_data32[0]
#define icmp6_mtu       icmp6_data32[0]
#define icmp6_id        icmp6_data16[0]
#define icmp6_seq       icmp6_data16[1]
#define icmp6_maxdelay  icmp6_data16[0]

struct nd_redirect
{
    struct icmp6_hdr  nd_rd_hdr;
    struct in6_addr   nd_rd_target;
    struct in6_addr   nd_rd_dst;
    /* options */
};

struct nd_router_advert
{
    struct icmp6_hdr  nd_ra_hdr;
    Ip_u32   nd_ra_reachable;
    Ip_u32   nd_ra_retransmit;
    /* options */
};

#define nd_ra_type               nd_ra_hdr.icmp6_type
#define nd_ra_code               nd_ra_hdr.icmp6_code
#define nd_ra_cksum              nd_ra_hdr.icmp6_cksum
#define nd_ra_curhoplimit        nd_ra_hdr.icmp6_data8[0]
#define nd_ra_flags_reserved     nd_ra_hdr.icmp6_data8[1]
#define nd_ra_flags_reserved     nd_ra_hdr.icmp6_data8[1]
#define ND_RA_FLAG_MANAGED       0x80
#define ND_RA_FLAG_OTHER         0x40
#define ND_RA_FLAG_HOME_AGENT    0x20
#define nd_ra_router_lifetime    nd_ra_hdr.icmp6_data16[1]


struct nd_neighbor_advert
{
    struct icmp6_hdr  nd_na_hdr;
    struct in6_addr   nd_na_target;
    /* options */
};

struct nd_opt_hdr
{
    Ip_u8  nd_opt_type;
    Ip_u8  nd_opt_len;
    Ip_u8  nd_opt_data[1];
};

/* Prefix Extension Header Options */
struct nd_opt_prefix_info
{
    Ip_u8  nd_opt_pi_type;
    Ip_u8  nd_opt_pi_len;
    Ip_u8  nd_opt_pi_prefix_len;
    Ip_u8  nd_opt_pi_flags_reserved;
    Ip_u32 nd_opt_pi_valid_time;
    Ip_u32 nd_opt_pi_preferred_time;
    Ip_u32 nd_opt_pi_reserved2;
    struct Ip_in6_addr nd_opt_pi_prefix;
};


#define ND_OPT_PI_FLAG_ONLINK        0x80
#define ND_OPT_PI_FLAG_AUTO          0x40
#define ND_OPT_PI_FLAG_RADDR         0x20

struct icmp6_filter
{
    Ip_u32  icmp6_filt[8];  /* 8*32 = 256 bits */
};


#define ICMP6_FILTER_SETBLOCKALL IP_ICMP6_FILTER_SETBLOCKALL
#define ICMP6_FILTER_SETPASS IP_ICMP6_FILTER_SETPASS
#define ICMP6_FILTER_SETPASS IP_ICMP6_FILTER_SETPASS

/*
 ****************************************************************************
 * 6                    FUNCTIONS
 ****************************************************************************
 */

#ifdef __cplusplus
}
#endif

#endif

/*
 ****************************************************************************
 *                      END OF FILE
 ****************************************************************************
 */