icmp6.h
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- /* Copyright (C) 1991,92,93,94,95,96,97,2000 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #ifndef _NETINET_ICMP6_H
- #define _NETINET_ICMP6_H 1
- #include <inttypes.h>
- #include <string.h>
- #include <sys/types.h>
- #include <netinet/in.h>
- #define ICMP6_FILTER 1
- #define ICMP6_FILTER_BLOCK 1
- #define ICMP6_FILTER_PASS 2
- #define ICMP6_FILTER_BLOCKOTHERS 3
- #define ICMP6_FILTER_PASSONLY 4
- struct icmp6_filter
- {
- uint32_t data[8];
- };
- struct icmp6_hdr
- {
- uint8_t icmp6_type; /* type field */
- uint8_t icmp6_code; /* code field */
- uint16_t icmp6_cksum; /* checksum field */
- union
- {
- uint32_t icmp6_un_data32[1]; /* type-specific field */
- uint16_t icmp6_un_data16[2]; /* type-specific field */
- uint8_t 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] /* parameter prob */
- #define icmp6_mtu icmp6_data32[0] /* packet too big */
- #define icmp6_id icmp6_data16[0] /* echo request/reply */
- #define icmp6_seq icmp6_data16[1] /* echo request/reply */
- #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */
- #define ICMP6_DST_UNREACH 1
- #define ICMP6_PACKET_TOO_BIG 2
- #define ICMP6_TIME_EXCEEDED 3
- #define ICMP6_PARAM_PROB 4
- #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
- #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 ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
- #define ICMP6_DST_UNREACH_ADMIN 1 /* communication with destination */
- /* administratively prohibited */
- #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor */
- #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
- #define ICMP6_DST_UNREACH_NOPORT 4 /* bad port */
- #define ICMP6_TIME_EXCEED_TRANSIT 0 /* Hop Limit == 0 in transit */
- #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* Reassembly time out */
- #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
- #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized Next Header */
- #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized IPv6 option */
- #define ICMP6_FILTER_WILLPASS(type, filterp)
- ((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) == 0)
- #define ICMP6_FILTER_WILLBLOCK(type, filterp)
- ((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) != 0)
- #define ICMP6_FILTER_SETPASS(type, filterp)
- ((((filterp)->data[(type) >> 5]) &= ~(1 << ((type) & 31))))
- #define ICMP6_FILTER_SETBLOCK(type, filterp)
- ((((filterp)->data[(type) >> 5]) |= (1 << ((type) & 31))))
- #define ICMP6_FILTER_SETPASSALL(filterp)
- memset (filterp, 0, sizeof (struct icmp6_filter));
- #define ICMP6_FILTER_SETBLOCKALL(filterp)
- memset (filterp, 0xFF, sizeof (struct icmp6_filter));
- #define ND_ROUTER_SOLICIT 133
- #define ND_ROUTER_ADVERT 134
- #define ND_NEIGHBOR_SOLICIT 135
- #define ND_NEIGHBOR_ADVERT 136
- #define ND_REDIRECT 137
- struct nd_router_solicit /* router solicitation */
- {
- struct icmp6_hdr nd_rs_hdr;
- /* could be followed by options */
- };
- #define nd_rs_type nd_rs_hdr.icmp6_type
- #define nd_rs_code nd_rs_hdr.icmp6_code
- #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
- #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
- struct nd_router_advert /* router advertisement */
- {
- struct icmp6_hdr nd_ra_hdr;
- uint32_t nd_ra_reachable; /* reachable time */
- uint32_t nd_ra_retransmit; /* retransmit timer */
- /* could be followed by 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_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_solicit /* neighbor solicitation */
- {
- struct icmp6_hdr nd_ns_hdr;
- struct in6_addr nd_ns_target; /* target address */
- /* could be followed by options */
- };
- #define nd_ns_type nd_ns_hdr.icmp6_type
- #define nd_ns_code nd_ns_hdr.icmp6_code
- #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
- #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
- struct nd_neighbor_advert /* neighbor advertisement */
- {
- struct icmp6_hdr nd_na_hdr;
- struct in6_addr nd_na_target; /* target address */
- /* could be followed by options */
- };
- #define nd_na_type nd_na_hdr.icmp6_type
- #define nd_na_code nd_na_hdr.icmp6_code
- #define nd_na_cksum nd_na_hdr.icmp6_cksum
- #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
- #if BYTE_ORDER == BIG_ENDIAN
- #define ND_NA_FLAG_ROUTER 0x80000000
- #define ND_NA_FLAG_SOLICITED 0x40000000
- #define ND_NA_FLAG_OVERRIDE 0x20000000
- #else /* BYTE_ORDER == LITTLE_ENDIAN */
- #define ND_NA_FLAG_ROUTER 0x00000080
- #define ND_NA_FLAG_SOLICITED 0x00000040
- #define ND_NA_FLAG_OVERRIDE 0x00000020
- #endif
- struct nd_redirect /* redirect */
- {
- struct icmp6_hdr nd_rd_hdr;
- struct in6_addr nd_rd_target; /* target address */
- struct in6_addr nd_rd_dst; /* destination address */
- /* could be followed by options */
- };
- #define nd_rd_type nd_rd_hdr.icmp6_type
- #define nd_rd_code nd_rd_hdr.icmp6_code
- #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
- #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
- struct nd_opt_hdr /* Neighbor discovery option header */
- {
- uint8_t nd_opt_type;
- uint8_t nd_opt_len; /* in units of 8 octets */
- /* followed by option specific data */
- };
- #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_OPT_RTR_ADV_INTERVAL 7
- #define ND_OPT_HOME_AGENT_INFO 8
- struct nd_opt_prefix_info /* prefix information */
- {
- uint8_t nd_opt_pi_type;
- uint8_t nd_opt_pi_len;
- uint8_t nd_opt_pi_prefix_len;
- uint8_t nd_opt_pi_flags_reserved;
- uint32_t nd_opt_pi_valid_time;
- uint32_t nd_opt_pi_preferred_time;
- uint32_t nd_opt_pi_reserved2;
- struct 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 nd_opt_rd_hdr /* redirected header */
- {
- uint8_t nd_opt_rh_type;
- uint8_t nd_opt_rh_len;
- uint16_t nd_opt_rh_reserved1;
- uint32_t nd_opt_rh_reserved2;
- /* followed by IP header and data */
- };
- struct nd_opt_mtu /* MTU option */
- {
- uint8_t nd_opt_mtu_type;
- uint8_t nd_opt_mtu_len;
- uint16_t nd_opt_mtu_reserved;
- uint32_t nd_opt_mtu_mtu;
- };
- /* Mobile IPv6 extension: Advertisement Interval. */
- struct nd_opt_adv_interval
- {
- uint8_t nd_opt_adv_interval_type;
- uint8_t nd_opt_adv_interval_len;
- uint16_t nd_opt_adv_interval_reserved;
- uint32_t nd_opt_adv_interval_ival;
- };
- /* Mobile IPv6 extension: Home Agent Info. */
- struct nd_opt_home_agent_info
- {
- uint8_t nd_opt_home_agent_info_type;
- uint8_t nd_opt_home_agent_info_len;
- uint16_t nd_opt_home_agent_info_reserved;
- int16_t nd_opt_home_agent_info_preference;
- uint16_t nd_opt_home_agent_info_lifetime;
- };
- #endif /* netinet/icmpv6.h */