Quelle icmpv6.h Sprache: C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_ICMPV6_H
#define _UAPI_LINUX_ICMPV6_H

#include <linux/types.h>
#include <asm/byteorder.h>

struct icmp6hdr {

__u8  icmp6_type;
__u8  icmp6_code;
__sum16  icmp6_cksum;

union {
  __be32   un_data32[1];
  __be16   un_data16[2];
  __u8   un_data8[4];

  struct icmpv6_echo {
   __be16  identifier;
   __be16  sequence;
  } u_echo;

                struct icmpv6_nd_advt {
#if defined(__LITTLE_ENDIAN_BITFIELD)
                        __u32  reserved:5,
                          override:1,
                          solicited:1,
                          router:1,
     reserved2:24;
#elif defined(__BIG_ENDIAN_BITFIELD)
                        __u32  router:1,
     solicited:1,
                          override:1,
                          reserved:29;
#else
#error "Please fix "
#endif
                } u_nd_advt;

                struct icmpv6_nd_ra {
   __u8  hop_limit;
#if defined(__LITTLE_ENDIAN_BITFIELD)
   __u8  reserved:3,
     router_pref:2,
     home_agent:1,
     other:1,
     managed:1;

#elif defined(__BIG_ENDIAN_BITFIELD)
   __u8  managed:1,
     other:1,
     home_agent:1,
     router_pref:2,
     reserved:3;
#else
#error "Please fix "
#endif
   __be16  rt_lifetime;
                } u_nd_ra;

} icmp6_dataun;

#define icmp6_identifier icmp6_dataun.u_echo.identifier
#define icmp6_sequence  icmp6_dataun.u_echo.sequence
#define icmp6_pointer  icmp6_dataun.un_data32[0]
#define icmp6_mtu  icmp6_dataun.un_data32[0]
#define icmp6_unused  icmp6_dataun.un_data32[0]
#define icmp6_maxdelay  icmp6_dataun.un_data16[0]
#define icmp6_datagram_len icmp6_dataun.un_data8[0]
#define icmp6_router  icmp6_dataun.u_nd_advt.router
#define icmp6_solicited  icmp6_dataun.u_nd_advt.solicited
#define icmp6_override  icmp6_dataun.u_nd_advt.override
#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved
#define icmp6_hop_limit  icmp6_dataun.u_nd_ra.hop_limit
#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed
#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
};

#define ICMPV6_ROUTER_PREF_LOW  0x3
#define ICMPV6_ROUTER_PREF_MEDIUM 0x0
#define ICMPV6_ROUTER_PREF_HIGH  0x1
#define ICMPV6_ROUTER_PREF_INVALID 0x2

#define ICMPV6_DEST_UNREACH  1
#define ICMPV6_PKT_TOOBIG  2
#define ICMPV6_TIME_EXCEED  3
#define ICMPV6_PARAMPROB  4

#define ICMPV6_ERRMSG_MAX       127

#define ICMPV6_INFOMSG_MASK  0x80

#define ICMPV6_ECHO_REQUEST  128
#define ICMPV6_ECHO_REPLY  129
#define ICMPV6_MGM_QUERY  130
#define ICMPV6_MGM_REPORT        131
#define ICMPV6_MGM_REDUCTION     132

#define ICMPV6_NI_QUERY   139
#define ICMPV6_NI_REPLY   140

#define ICMPV6_MLD2_REPORT  143

#define ICMPV6_DHAAD_REQUEST  144
#define ICMPV6_DHAAD_REPLY  145
#define ICMPV6_MOBILE_PREFIX_SOL 146
#define ICMPV6_MOBILE_PREFIX_ADV 147

#define ICMPV6_MRDISC_ADV  151
#define ICMPV6_MRDISC_SOL  152

#define ICMPV6_MSG_MAX          255

/*
* Codes for Destination Unreachable
*/
#define ICMPV6_NOROUTE   0
#define ICMPV6_ADM_PROHIBITED  1
#define ICMPV6_NOT_NEIGHBOUR  2
#define ICMPV6_ADDR_UNREACH  3
#define ICMPV6_PORT_UNREACH  4
#define ICMPV6_POLICY_FAIL  5
#define ICMPV6_REJECT_ROUTE  6

/*
* Codes for Time Exceeded
*/
#define ICMPV6_EXC_HOPLIMIT  0
#define ICMPV6_EXC_FRAGTIME  1

/*
* Codes for Parameter Problem
*/
#define ICMPV6_HDR_FIELD  0
#define ICMPV6_UNK_NEXTHDR  1
#define ICMPV6_UNK_OPTION  2
#define ICMPV6_HDR_INCOMP  3

/* Codes for EXT_ECHO (PROBE) */
#define ICMPV6_EXT_ECHO_REQUEST  160
#define ICMPV6_EXT_ECHO_REPLY  161
/*
* constants for (set|get)sockopt
*/

#define ICMPV6_FILTER   1

/*
* ICMPV6 filter
*/

#define ICMPV6_FILTER_BLOCK  1
#define ICMPV6_FILTER_PASS  2
#define ICMPV6_FILTER_BLOCKOTHERS 3
#define ICMPV6_FILTER_PASSONLY  4

struct icmp6_filter {
__u32  data[8];
};

/*
* Definitions for MLDv2
*/
#define MLD2_MODE_IS_INCLUDE 1
#define MLD2_MODE_IS_EXCLUDE 2
#define MLD2_CHANGE_TO_INCLUDE 3
#define MLD2_CHANGE_TO_EXCLUDE 4
#define MLD2_ALLOW_NEW_SOURCES 5
#define MLD2_BLOCK_OLD_SOURCES 6

#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }

#endif /* _UAPI_LINUX_ICMPV6_H */

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