| /* Copyright (C) 1991-2016 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #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 icmp6_filt[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 MLD_LISTENER_QUERY 130 |
| #define MLD_LISTENER_REPORT 131 |
| #define MLD_LISTENER_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_BEYONDSCOPE 2 /* beyond scope of source address */ |
| #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)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0) |
| |
| #define ICMP6_FILTER_WILLBLOCK(type, filterp) \ |
| ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0) |
| |
| #define ICMP6_FILTER_SETPASS(type, filterp) \ |
| ((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))) |
| |
| #define ICMP6_FILTER_SETBLOCK(type, filterp) \ |
| ((((filterp)->icmp6_filt[(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; |
| }; |
| |
| struct mld_hdr |
| { |
| struct icmp6_hdr mld_icmp6_hdr; |
| struct in6_addr mld_addr; /* multicast address */ |
| }; |
| |
| #define mld_type mld_icmp6_hdr.icmp6_type |
| #define mld_code mld_icmp6_hdr.icmp6_code |
| #define mld_cksum mld_icmp6_hdr.icmp6_cksum |
| #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0] |
| #define mld_reserved mld_icmp6_hdr.icmp6_data16[1] |
| |
| #define ICMP6_ROUTER_RENUMBERING 138 |
| |
| struct icmp6_router_renum /* router renumbering header */ |
| { |
| struct icmp6_hdr rr_hdr; |
| uint8_t rr_segnum; |
| uint8_t rr_flags; |
| uint16_t rr_maxdelay; |
| uint32_t rr_reserved; |
| }; |
| |
| #define rr_type rr_hdr.icmp6_type |
| #define rr_code rr_hdr.icmp6_code |
| #define rr_cksum rr_hdr.icmp6_cksum |
| #define rr_seqnum rr_hdr.icmp6_data32[0] |
| |
| /* Router renumbering flags */ |
| #define ICMP6_RR_FLAGS_TEST 0x80 |
| #define ICMP6_RR_FLAGS_REQRESULT 0x40 |
| #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20 |
| #define ICMP6_RR_FLAGS_SPECSITE 0x10 |
| #define ICMP6_RR_FLAGS_PREVDONE 0x08 |
| |
| struct rr_pco_match /* match prefix part */ |
| { |
| uint8_t rpm_code; |
| uint8_t rpm_len; |
| uint8_t rpm_ordinal; |
| uint8_t rpm_matchlen; |
| uint8_t rpm_minlen; |
| uint8_t rpm_maxlen; |
| uint16_t rpm_reserved; |
| struct in6_addr rpm_prefix; |
| }; |
| |
| /* PCO code values */ |
| #define RPM_PCO_ADD 1 |
| #define RPM_PCO_CHANGE 2 |
| #define RPM_PCO_SETGLOBAL 3 |
| |
| struct rr_pco_use /* use prefix part */ |
| { |
| uint8_t rpu_uselen; |
| uint8_t rpu_keeplen; |
| uint8_t rpu_ramask; |
| uint8_t rpu_raflags; |
| uint32_t rpu_vltime; |
| uint32_t rpu_pltime; |
| uint32_t rpu_flags; |
| struct in6_addr rpu_prefix; |
| }; |
| |
| #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x20 |
| #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x10 |
| |
| #if BYTE_ORDER == BIG_ENDIAN |
| # define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000 |
| # define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000 |
| #elif BYTE_ORDER == LITTLE_ENDIAN |
| # define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80 |
| # define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40 |
| #endif |
| |
| struct rr_result /* router renumbering result message */ |
| { |
| uint16_t rrr_flags; |
| uint8_t rrr_ordinal; |
| uint8_t rrr_matchedlen; |
| uint32_t rrr_ifid; |
| struct in6_addr rrr_prefix; |
| }; |
| |
| #if BYTE_ORDER == BIG_ENDIAN |
| # define ICMP6_RR_RESULT_FLAGS_OOB 0x0002 |
| # define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001 |
| #elif BYTE_ORDER == LITTLE_ENDIAN |
| # define ICMP6_RR_RESULT_FLAGS_OOB 0x0200 |
| # define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100 |
| #endif |
| |
| /* 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; |
| uint16_t nd_opt_home_agent_info_preference; |
| uint16_t nd_opt_home_agent_info_lifetime; |
| }; |
| |
| #endif /* netinet/icmpv6.h */ |