diff options
Diffstat (limited to 'inet/netinet/icmp6.h')
| -rw-r--r-- | inet/netinet/icmp6.h | 270 |
1 files changed, 157 insertions, 113 deletions
diff --git a/inet/netinet/icmp6.h b/inet/netinet/icmp6.h index 224fb64f08..38c1bc19dd 100644 --- a/inet/netinet/icmp6.h +++ b/inet/netinet/icmp6.h @@ -19,6 +19,8 @@ #ifndef _NETINET_ICMP6_H #define _NETINET_ICMP6_H 1 +#include <inttypes.h> +#include <string.h> #include <sys/types.h> #include <netinet/in.h> @@ -29,160 +31,202 @@ #define ICMPV6_FILTER_BLOCKOTHERS 3 #define ICMPV6_FILTER_PASSONLY 4 -struct icmpv6_filter +struct icmp6_filter { - u_int32_t data[8]; + uint32_t data[8]; }; -struct icmpv6hdr +struct icmp6_hdr { - u_int8_t icmpv6_type; /* type field */ - u_int8_t icmpv6_code; /* code field */ - u_int16_t icmpv6_cksum; /* checksum field */ - union + uint8_t icmp6_type; /* type field */ + uint8_t icmp6_code; /* code field */ + uint16_t icmp6_cksum; /* checksum field */ + union { - u_int32_t un_data32[1]; /* type-specific field */ - u_int16_t un_data16[2]; /* type-specific field */ - u_int8_t un_data8[4]; /* type-specific field */ - } icmpv6_dataun; - }; - -#define icmpv6_data32 icmpv6_dataun.un_data32 -#define icmpv6_data16 icmpv6_dataun.un_data16 -#define icmpv6_data8 icmpv6_dataun.un_data8 -#define icmpv6_pptr icmpv6_data32[0] /* parameter prob */ -#define icmpv6_mtu icmpv6_data32[0] /* packet too big */ -#define icmpv6_id icmpv6_data16[0] /* echo request/reply */ -#define icmpv6_seq icmpv6_data16[1] /* echo request/reply */ -#define icmpv6_maxdelay icmpv6_data16[0] /* mcast group membership */ - -#define ICMPV6_DEST_UNREACH 1 -#define ICMPV6_PACKET_TOOBIG 2 -#define ICMPV6_TIME_EXCEEDED 3 -#define ICMPV6_PARAMETER_PROBLEM 4 -#define ICMPV6_INFOMSG_MASK 128 /* message is info if bit set */ -#define ICMPV6_ECHOREQUEST 128 -#define ICMPV6_ECHOREPLY 129 -#define ICMPV6_MGM_QUERY 130 -#define ICMPV6_MGM_REPORT 131 -#define ICMPV6_MGM_REDUCTION 132 - -#define ICMPV6_DEST_UNREACH_NOROUTE 0 -#define ICMPV6_DEST_UNREACH_ADMIN 1 /* administratively prohibited */ -#define ICMPV6_DEST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor (and must be) */ -#define ICMPV6_DEST_UNREACH_ADDR 3 -#define ICMPV6_DEST_UNREACH_NOPORT 4 -#define ICMPV6_TIME_EXCEED_HOPS 0 /* Hop Limit == 0 in transit */ -#define ICMPV6_TIME_EXCEED_REASSEMBLY 1 /* Reassembly time out */ -#define ICMPV6_PARAMPROB_HEADER 0 /* erroneous header field */ -#define ICMPV6_PARAMPROB_NEXTHEADER 1 /* unrecognized Next Header */ -#define ICMPV6_PARAMPROB_OPTION 2 /* unrecognized option */ - -#define ICMPV6_FILTER_WILLPASS(type, filterp) \ + 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 ICMPV6_FILTER_WILLBLOCK(type, filterp) \ +#define ICMP6_FILTER_WILLBLOCK(type, filterp) \ ((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) != 0) -#define ICMPV6_FILTER_SETPASS(type, filterp) \ +#define ICMP6_FILTER_SETPASS(type, filterp) \ ((((filterp)->data[(type) >> 5]) &= ~(1 << ((type) & 31)))) -#define ICMPV6_FILTER_SETBLOCK(type, filterp) \ +#define ICMP6_FILTER_SETBLOCK(type, filterp) \ ((((filterp)->data[(type) >> 5]) |= (1 << ((type) & 31)))) -#define ICMPV6_FILTER_SETPASSALL(filterp) \ - memset (filterp, 0, sizeof (struct icmpv6_filter)); +#define ICMP6_FILTER_SETPASSALL(filterp) \ + memset (filterp, 0, sizeof (struct icmp6_filter)); -#define ICMPV6_FILTER_SETBLOCKALL(filterp) \ - memset (filterp, 0xFF, sizeof (struct icmpv6_filter)); +#define ICMP6_FILTER_SETBLOCKALL(filterp) \ + memset (filterp, 0xFF, sizeof (struct icmp6_filter)); -#define ND6_ROUTER_SOLICITATION 133 -#define ND6_ROUTER_ADVERTISEMENT 134 -#define ND6_NEIGHBOR_SOLICITATION 135 -#define ND6_NEIGHBOR_ADVERTISEMENT 136 -#define ND6_REDIRECT 137 +#define ND_ROUTER_SOLICIT 133 +#define ND_ROUTER_ADVERT 134 +#define ND_NEIGHBOR_SOLICIT 135 +#define ND_NEIGHBOR_ADVERT 136 +#define ND_REDIRECT 137 -enum nd6_option +struct nd_router_solicit /* router solicitation */ { - ND6_OPT_SOURCE_LINKADDR=1, - ND6_OPT_TARGET_LINKADDR=2, - ND6_OPT_PREFIX_INFORMATION=3, - ND6_OPT_REDIRECTED_HEADER=4, - ND6_OPT_MTU=5, - ND6_OPT_ENDOFLIST=256 + struct icmp6_hdr nd_rs_hdr; + /* could be followed by options */ }; -struct nd6_router_solicit /* router solicitation */ +#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 icmpv6hdr rsol_hdr; + 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 rsol_type rsol_hdr.icmpv6_type -#define rsol_code rsol_hdr.icmpv6_code -#define rsol_cksum rsol_hdr.icmpv6_cksum -#define rsol_reserved rsol_hdr.icmpv6_data32[0] +#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_router_lifetime nd_ra_hdr.icmp6_data16[1] -struct nd6_router_advert +struct nd_neighbor_solicit /* neighbor solicitation */ { - struct icmpv6hdr radv_hdr; - u_int32_t radv_reachable; /* reachable time */ - u_int32_t radv_retransmit; /* reachable retransmit time */ + struct icmp6_hdr nd_ns_hdr; + struct in6_addr nd_ns_target; /* target address */ + /* could be followed by options */ }; -#define radv_type radv_hdr.icmpv6_type -#define radv_code radv_hdr.icmpv6_code -#define radv_cksum radv_hdr.icmpv6_cksum -#define radv_maxhoplimit radv_hdr.icmpv6_data8[0] -#define radv_m_o_res radv_hdr.icmpv6_data8[1] -#define ND6_RADV_M_BIT 0x80 -#define ND6_RADV_O_BIT 0x40 -#define radv_router_lifetime radv_hdr.icmpv6_data16[1] +#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 nd6_nsolicitation /* neighbor solicitation */ +struct nd_neighbor_advert /* neighbor advertisement */ { - struct icmpv6hdr nsol6_hdr; - struct in6_addr nsol6_target; + struct icmp6_hdr nd_na_hdr; + struct in6_addr nd_na_target; /* target address */ + /* could be followed by options */ }; -struct nd6_nadvertisement /* neighbor advertisement */ +#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 icmpv6hdr nadv6_hdr; - struct in6_addr nadv6_target; + 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] -#define nadv6_flags nadv6_hdr.icmpv6_data32[0] -#define ND6_NADVERFLAG_ISROUTER 0x80 -#define ND6_NADVERFLAG_SOLICITED 0x40 -#define ND6_NADVERFLAG_OVERRIDE 0x20 - -struct nd6_redirect /* redirect */ +struct nd_opt_hdr /* Neighbor discovery option header */ { - struct icmpv6hdr redirect_hdr; - struct in6_addr redirect_target; - struct in6_addr redirect_destination; + uint8_t nd_opt_type; + uint8_t nd_opt_len; /* in units of 8 octets */ + /* followed by option specific data */ }; -struct nd6_opt_prefix_info /* prefix information */ +#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 + +struct nd_opt_prefix_info /* prefix information */ { - u_int8_t opt_type; - u_int8_t opt_length; - u_int8_t opt_prefix_length; - u_int8_t opt_l_a_res; - u_int32_t opt_valid_life; - u_int32_t opt_preferred_life; - u_int32_t opt_reserved2; - struct in6_addr opt_prefix; + 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 ND6_OPT_PI_L_BIT 0x80 -#define ND6_OPT_PI_A_BIT 0x40 +#define ND_OPT_PI_FLAG_ONLINK 0x80 +#define ND_OPT_PI_FLAG_AUTO 0x40 -struct nd6_opt_mtu /* MTU option */ +struct nd_opt_rd_hdr /* redirected header */ { - u_int8_t opt_type; - u_int8_t opt_length; - u_int16_t opt_reserved; - u_int32_t opt_mtu; + 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; + }; + + #endif /* netinet/icmpv6.h */ |